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How to make a gas blowtorch. How to repair soldering lamps

Furnaces and boilers running on waste oil have long taken their rightful place among heating appliances. Mining is a cheap and sometimes free type of fuel, it is often used for this purpose in car services and garages. When choosing a design, many masters ask themselves the question: is it possible to convert a gasoline blowtorch into a burner for working out?

The principle of operation of a conventional blowtorch is to ignite gasoline vapors pushed out under the action of compressed air. This effect is achieved by forcing air into the fuel tank of the burner.

What happens if you put used oil in a blowtorch?

The oil itself, even under pressure, does not evaporate well - it needs to be heated. Due to poor atomization, the flame will be uneven and it will be difficult to start the burner. The oil burns with the formation of a large amount of soot and soot, so the jet will quickly coke, its cross section will decrease, and the lamp will fail. An increase in the cross section of the jet will also not give the expected effect - the oil will be sprayed in large drops, which will not allow you to get a uniform flame of the torch.

In addition, used oil often contains impurities: diesel fuel, gasoline, antifreeze and even water, which can lead to flashes inside the lamp. To use mining as fuel for a blowtorch, you will have to arrange a filtration system, which will further complicate the task.

Given all the difficulties, it is difficult and unsafe to use a gasoline blowtorch as a burner for mining. Therefore, it is necessary to modify or completely change its design.

How to make a burner for testing yourself

For successful combustion of oil, you must either preheat it to an evaporation temperature of about 300 degrees Celsius, or finely spray and enrich the oil vapor with air. It is possible to heat the oil to such temperatures with the help of powerful heating elements, but this will increase the cost of electricity.
To achieve the creation of an oil aerosol, you can supply a jet of compressed air through a layer of oil. This effect is implemented in the Babington burner - a device, an analogue of which can be assembled with your own hands from improvised components.

Babington torch - an alternative to a blowtorch

The Babington burner was originally patented to run on diesel fuel. Later, having made minor changes to the design, the craftsmen changed the design with their own hands and adapted the burner for burning used machine and edible oils. The degree of contamination of the oil does not really matter, since the fuel channels of the unit are devoid of bottlenecks prone to blockages.

Unlike a blowtorch, where an air-fuel mixture is atomized under pressure through nozzles, in a Babington burner, oil is forced from a reservoir using a low-power pump and flows down a thin film over an inclined or spherical surface, and an oil-air mixture is formed by blowing a thin jet of compressed air through this film.

The spray effect is clearly shown in the video:

Fuel - tank, pump and pipes for fuel supply.
Air, it consists of a compressor and an air tube.
A hemisphere with a small diameter hole where the air jet is mixed with oil.
Nozzle directing the flame in the desired direction.

The standard design can be modified with your own hands, increasing its efficiency. To do this, the fuel tank is equipped with a heater that heats the oil before the burner starts, which makes it possible to increase its fluidity. In addition, the fuel channel, made of a metal tube, can be wrapped around the nozzle - in this way the oil will heat up during the operation of the burner.

The burner nozzle is directed to the boiler, where the fuel chamber and the water jacket are heated. You can also use a device for melting and heating metals.

Advantages of a do-it-yourself Babington burner:

a wide range of fuels - used machine oils, lubricants of any viscosity, diesel fuel, fuel oil, any vegetable oils, including food production waste;
the presence of impurities in the fuel;
simplicity of design - you can do it yourself.

Disadvantages:

the complexity of setting up the burner, which is especially often manifested when changing the type of fuel;
smell and dirt - the burner cannot be installed in residential premises, a boiler room is required;
the use of the burner is associated with an open flame, so fire prevention measures must be observed.

There must be a powder or salt chemical fire extinguisher in the boiler room!

DIY Babington burner

You can assemble the burner with your own hands from simple components, for this you will need:

- A hollow ball or hemisphere with such a wall thickness that a hole with a diameter of no more than 0.3 mm can be drilled. Any metal objects of a similar configuration can be used, for example, a spherical brass doorknob, nuts with plugs. The main condition is the possibility of reliable fastening of the duct.

Metal tube for supplying compressed air from the compressor, diameter - 10-15 mm.
Compressor, for example, from a refrigerator, with a working pressure of 2 atm, maximum - 4 atm.
A fuel tank with a built-in heating element for 0.5-1 kW made of metal that is not subject to corrosion.
Fuel sump and pipe for draining excess oil back into the tank.
Copper tube, diameter - 10 mm, wall thickness - 1-1.5 mm for the fuel channel.
An oil pump from a car or motorcycle with an electric motor to power the pump. It is advisable to equip the pump at the inlet with a coarse mesh filter.
Nozzle - squeegee 200-400 mm long with an external thread of 2 inches.
Cross for 2" metal pipe with female thread.
1" threaded spigot and 2/1" adapter to drain excess fuel into sump.
Adapters and fittings for connecting the fuel path, air duct and nozzle.

Preparing burner assemblies for assembly

1. The main and most important task is to make a hole of a given diameter in a spherical nozzle. The power of the burner depends on its size. For example, a boiler with a thermal power of 10-15 kW requires a burning torch obtained by operating a burner with one hole with a diameter of 0.2-0.25 mm. To obtain more power, it is not necessary to expand the hole - this will lead to larger drops. It is better to make 2-4 holes with a diameter of 0.1-0.3 mm with a distance of 8-10 mm between them, otherwise the torches will be mutually extinguished. Fuel consumption can be calculated as follows: 2 liters of mining per hour are sprayed through one 0.25 mm hole.

Video on how to make small diameter holes in a metal hemisphere:

1. The tank is made of corrosion-resistant metal. A heater is built into it with a thermostat set to turn off the heater at a temperature of 70 degrees Celsius.
2. From the same material it is necessary to make a fuel sump equipped with a pipe with overflow. Through this pipe, the oil from the sump will flow back to the tank. To drain the dirt from the sump, you can provide a plug in its bottom.

The burner body is assembled: a nozzle from the squeegee is connected to the 2-inch cross in the front, then adapters: from above for oil supply, from the back side for air. From below, a 2/1 inch adapter and a drive are connected to the cross, through which excess oil will drain into the sump. Adapters are made of plugs with drilled holes into which fuel and air channel tubes are inserted.

It is also possible to make a housing from a tee, while the air duct is brought into the upper part, having previously drilled a hole of the desired diameter.

The fuel path is made of a copper tube, one end of which is wrapped around the nozzle three times, and then led out through the plug adapter into the housing in the upper part. The fuel pipe is connected to the pump, a coarse strainer is installed and the other end of the tract is led into the tank. The fuel path can be equipped with a valve. The pump is connected to an electric motor powered by a 220 V network.

An air duct from a metal tube is attached at one end to a hemisphere with a hole, having previously installed a plug adapter at the desired distance. The hemisphere should be positioned so that the oil from the fuel pipe flows evenly onto the rounded part of the nozzle, and then into the lower part of the body and into the sump. The other part of the duct is connected to the compressor, which is also connected to the 220 V network.
Since there will be as many as three consumers of electricity in the installation, which will not be turned on simultaneously, it is advisable to equip the burner with a control panel: install a separate toggle switch or button to turn on the heating element and a separate toggle switch to turn on the compressor and pump. If desired, you can equip the remote control with a light signaling of diode lamps.
It is possible to equip the burner with a controller that automatically turns on the units in accordance with the selected mode. Electric ignition is implemented using spark plugs, and to extinguish the burner, it is enough to shut off the oil supply.

Video - burner assembly diagram:

Preparation of fuel for the burner

Almost any waste oil can be used in a Babington burner. Automotive mining with a large number of foreign inclusions is filtered before being poured into the tank through a mesh and mixed with cleaner oil. Oils with a small amount of impurities can be poured without preparation.

When using edible vegetable oils, for example, deep-frying, it is recommended to stand it for several hours and carefully drain off the residue. These oils are quite fluid at normal temperatures, so they can be heated in the tank only at the time of starting the burner. When using fuel oil and other thick materials, they must be heated to a temperature of 70 to 90 degrees, otherwise the pump will work with overload.

Security measures

floors and walls made of combustible materials are sheathed with metal or asbestos sheets;
the fuel supply is stored at a safe distance;
oil leaks must be removed in a timely manner;
the electrical components of the unit must be carefully insulated to avoid sparks in the oil spray area;
The burner must be located out of reach of air currents and drafts.

A burner with an open nozzle must not be left unattended while it is running!

The Babington burner, unlike a blowtorch converted to work at mining, is a reliable and durable unit that does not require complex maintenance. It is enough to periodically clean the fuel system, tank and sump, blow out the air duct in idle mode, and also monitor the compressor and oil pump for proper operation. A serviceable burner is a reliable and economical unit with a long service life.

Blowtorch is a portable flame torch used to heat parts. This adaptation is widely used in everyday life, therefore there is a huge probability that the lamp may break. It is possible to repair this adaptation even at home.

You will need

- screwdriver;
- needle;
- wire;
– oil for lubrication;
- pliers.

Instruction

1. All tools used in everyday life have their own "Achilles' heel". The most common malfunctions of a blowtorch include the failure of the pump, with the help of which pressure is built up in the “fuel” tank, and clogging of the jet. It is somewhat less likely to encounter a malfunction of the shutoff valves.

2. Observantly look around the soldering iron lamp and determine the problem. Most likely you will find out the reason that led to this breakdown.

3. If, after opening the valve, the “fuel” oozes or bubbles, but is not supplied properly, then the problem is rooted in the jet. Clean the calibrated hole with a needle. If there is no result, then this component of the portable burner will have to be cleaned a little differently.

4. Unscrew the jet and try cleaning it again. After that, insert a thin wire into the fuel pipe, open the valve and flush this channel with gasoline. After the procedure, install the jet in place and fix it.

5. A blowtorch malfunction may manifest itself in the fact that during the operation of the burner, hissing or other third-party noises are heard. The snag in this case is rooted in a malfunction of the pumping device.

6. In order to eliminate the malfunction associated with the operation of the pumping device, unscrew the plug and remove the pump to the outside. Remove the spool, the one on the pump valve, clean this burner structural element from blockages and replace its spring. Lubricate the cuffs on the rod with engine oil.

7. If during operation of the blowtorch a flame begins to blaze from under the stem, extinguish the fire, and later remove the valve handle and plug and then change the stuffing box of the intake needle.

In anticipation of the winter cold, a caring owner is obliged to check the performance of the blowtorch. In order to avoid incidents related to the fact that it is at the very moment when something urgently needs to be heated up, it just turns out that it is unthinkable to do this due to a non-working device.

You will need

- screwdriver
- pliers.

Instruction

1. Particularly frequent failures in the operation of a blowtorch occur due to a clogged jet or a malfunction of the pump that pressurizes the gas tank. Valve failure is very rare.

2. Let's start in order.

3. First. If, during the pumping air pressure into the fuel tank, a hiss is heard from under it, or gasoline penetrates inside and is squeezed out by the rod moving upwards, then the pumping device is repaired. For this purpose, the plug is unscrewed, the pump is taken out and disassembled. A valve is installed at the air outlet of the pump, consisting of a spring and a ball adjacent to a ground seat. The spool is disassembled, cleaned of debris and its spring is replaced (if it is damaged by corrosion or bent). At the time of assembly of the pump, the condition of the cuff on the rod is checked, if satisfactory, it is lubricated with engine oil. In the opposite case, it is replaced with a new one, after which the pump is assembled and installed in a regular place.

4. Second. The air pressure in the tank is increased, but after opening the valve, gasoline is not squeezed out of the jet, but bubbles and drips. Try to clean the calibrated hole with a needle from the kit. If it does not work, then the jet is unscrewed and cleaned. After that, you need to crawl with a thin iron wire in the fuel pipe, then open the valve and flush the channel with gasoline, and screw the jet into place.

5. Third. Later, after the lamp has flared up, gasoline is squeezed out from under the valve stem and ignites. To eliminate dangerous manifestations, the flame of the device is extinguished, the residual air pressure is bled from the tank, the valve handle is removed from the stem, the plug is unscrewed and the gland packing of the locking needle is changed. Later, all previously dismantled parts are returned to their places.

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Note!
During the execution of work, it is necessary to consider that the blowtorch is a source of increased fire danger. Therefore, during its repair, primary fire extinguishing equipment must be in close proximity to you.

Household blowtorches are used for heating containers with non-flammable liquids, repair work, soldering and heat treatment. They are systematized by the type of fuel used - gasoline, gas and kerosene. Gas blowtorches or burners are considered the most modern and comfortable to use. But fans of gasoline zealously defend their judgment.

Instruction

1. High-tech gas blowtorches combine ergonomic design and high safety in use. They can work independently from disposable gas cylinders and from refillable ones. Piertable cylinders without a valve are quite cheap. The body of the lamp itself can be plastic or metal.

2. Universal gas lamps work on 2 types of cylinders, they are attached to them with a thread. Such equipment is super-compact, which is very convenient for storage and transportation. Another advantage of a multifunctional lamp is the ability to disconnect the gas cylinder at any time.

3. Take a look at the high-tech lamps that work on the new KEMAP valve cylinders. These aluminum-bodied cylinders contain a special petroleum-based liquefied gas (LPG) blend for high soldering performance. Previously, this was achieved only with the use of acetylene. If you are an expert in soldering and welding, a lamp powered by these cylinders is your choice.

4. There are gas burners that also work from domestic propane cylinders. They are hefty strong, loyal and have versatility when choosing a gas source. Use a hose of any length for work. For roofing choose lamp, which is equipped with a long nozzle and a lever for a rapid increase in the flame.

5. For those who like to make new electrical appliances, there are gas micro-soldering irons, and the gas tank is inside them. Before use, it is filled with gas from a lighter can. This is also a good idea for a present for a man with skillful hands.

6. Gasoline blowtorches provide a very high heating temperature - up to 1100 degrees. The strength of her flame can be easily adjusted. Lamps that run on kerosene and second grade gasoline are used to heat huge soldering irons and to work with hard solders.

7. There are some pros and cons for both lamps, but there is a wonderful way out - a multi-fuel universal burner. It runs on any type of fuel from diesel to gas, but such a unit costs about 6-7 thousand rubles.

Energy-saving lamps are designed to illuminate not only residential premises, but also social institutions. Their difference from other lamps lies in the table of contents of 5 mg of mercury in the form of vapors, which, if improperly disposed of and processed, poison the soil and air, which leads to irreversible results for human health and the environment. Therefore, the entire user of energy-saving lamps must know the methods of their disposal.

Instruction

1. Take the burned-out energy-saving lamps to the regional DEZ or REU, where containers specially prepared for this must be installed. And from there they are sent to special enterprises, the main action of which is the processing of energy-saving lamps.

2. If there are a lot of lamps, which is important for offices and enterprises, then it is better for everyone to conclude an agreement with a company that accepts and subsequently disposes of waste containing mercury.

3. Energy-saving lamps should preferably be delivered in their original packaging. If it is not preserved, wrap the lamp in paper so that it does not break during transportation.

4. If the lamp is broken, then its fragments cannot be swept away with a broom or collected with a vacuum cleaner, so as not to disperse harmful mercury vapors in each apartment. Treat the place where the lamp was broken with a freshly prepared solution of potassium permanganate to bind mercury. After this, ventilate the room well in order to completely get rid of mercury fumes. Collect the remains of the lamp in a glass container, which then will need to be tightly closed with a lid, and hand it over to a specialized organization.

5. Utilization of energy-saving lamps is carried out in two ways. One of them is to wash, grind and further process the used lamp with special chemicals that combine mercury into a more harmless compound. Another method is thermal. The pre-broken lamp is heated, as a result of which the mercury evaporates. Its vapors are condensed and collected in order to be used in the manufacture of new lamps.

Note!
The main thing to remember is that energy-saving lamps cannot be thrown into the garbage chute and container near the house.

Helpful advice
Mercury-containing waste, including energy-saving lamps, is disposed of by isolating them from the environment. Doing this on your own is by no means impossible.

The UFO-lamp is prepared for health-improving procedures. Irradiation with ultraviolet light has the right effect on the processes occurring in the body, and also helps to improve the condition in certain diseases.

Instruction

1. The UV lamp is used to increase the body's resistance to infections (influenza, acute respiratory viral infections, etc.), for the prevention and treatment of rickets in pregnant and lactating women, and in children. It is used to treat pyoderma, pustular diseases of the skin and subcutaneous tissue, to improve recovery processes in fractures, to normalize immunity in chronic inflammation, to stimulate hematopoiesis (the process of hematopoiesis), to compensate for the lack of sun.

2. Dosed irradiation with a UV lamp has a positive effect on the body. The procedure regulates blood circulation, speeds up metabolism, increases immune activity, promotes the work of defense mechanisms during epidemics of viral infections. The UV lamp has a negative effect on the retina of the eyes, so the procedure must be carried out in special glasses. Instead of them, it is allowed to place cotton pads on the eyelids. Some people, due to the characteristics of the body, are not able to tolerate unnatural radiation, therefore, during the procedure, it is necessary to control their condition. UV therapy sessions are not suitable for people who experience dizziness, headaches, nervous irritation, etc.

3. Before the session, moderately treat the skin with cream or oil, apply them in a thin, even layer. Turn on the lamp and wait 5 minutes for it to warm up. Place the working surface of the device at a distance of 10-50 cm from the surface of the body. If you need to carry out local skin irradiation, limit the diseased area from the healthy ones with a towel, sheets. For local irradiations (say, the mucous membranes of the nose, throat), before turning on the lamp, install a special tube in the opening of the device screen.

4. The 1st session should last no more than 1 minute, after that you can start to gradually increase the duration of the procedures up to 5 minutes. Ultraviolet radiation of the mucous membranes of the nose and throat in order to prevent influenza ARVI spend for 1 minute on any area. Every 3 days, increase the duration of the session by 1 minute until you reach 3 minutes. The course is 10 procedures. During the acute stage of the disease, irradiation is not carried out. Contraindications to the use of a UV lamp are the following ailments: severe kidney damage, heart damage with circulatory failure in the 3rd stage, coronary artery disease, stage II-III hypertension, severe exhaustion, bleeding tendency, anemia, skin diseases, hyperthyroidism. The UV lamp is not prepared for tanning.

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Note!
Observe safety rules during operation and repair of the blowtorch.

Helpful advice
If the condition of the cuff on the stem is unsatisfactory, then by all means replace it with a new one.

Repair blowtorches, widely used in everyday life, it is quite possible to carry out on their own. The device is designed for soldering metal parts, it is also used to remove paint and varnish coatings from the metal surface. Only a working blowtorch should be used, so the device should always be maintained in working order. If a sudden breakdown occurs, quickly repairing the lamp on your own, you can continue to work.

Why can a lamp fail?

The device is used for rapid local heating and experiences significant loads that can disable it. To prevent serious damage when using a lamp, you must follow safety rules.

Lamps break due to improper operation and overheating.

When the appliance is turned on or hot, do not refuel or open the lid of its tank. It is also necessary to monitor the tightness of the valves and pump connections. Proper operation will avoid complex repairs or the purchase of a new device.

Even with preventive measures, breakdowns can still occur. Therefore, it is advisable to always have at hand the minimum set of tools necessary for repair. You need to know the device and the weak points of the device, which will allow you to quickly and efficiently repair the blowtorch. Only by accurately determining the malfunction and finding out the cause of the breakdown, you can proceed to self-repair the tool.

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Restoring the pump

If hissing or other extraneous sounds appear during operation, you must immediately turn off the lamp, as the operation of the pump may be impaired. In such a situation, it is necessary to restore a stable supply of fuel. For repair you will need tools:

pliers;
screwdriver.

Materials:

spring;
lubricating oil.

Perform the following actions:

Unscrew the plug located on the lid and remove the pump from the cylinder.
Remove the spool on the valve with a screwdriver.
The element is cleaned of contaminants and the spring is replaced in it.
Docking areas of the pump and housing are lubricated with engine oil.
Assemble the lamp, following the reverse procedure for mounting the pump.

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Troubleshooting fuel and air supply problems

To repair a blowtorch, you will need a screwdriver, pliers, and thin wire.

If the fuel is not supplied correctly when the valve is opened, such as foaming or seeping through the base of the nozzle, the jet may be clogged. Then you should repair the blowtorch using the following tools:

needle or thin wire;
straight screwdriver;
pliers.

Materials:

petrol.

Repair is carried out by performing the following steps:

If there is a small blockage, then clean the calibration hole of the fuel tube with a needle.
If there is no result, the jet is dismantled.
Then the wire is pushed into the hole in the fuel tube.
Then open the valve and carefully and carefully wash the channel with gasoline.
Assemble the lamp by mounting and fixing the jet.
If a flame appears from under the rod, immediately extinguish the fire.
Then the valve handle with the plug is removed and the gland packing is replaced in the intake needle.

The lamp may be disturbed by the level of air pressure inside the chamber. In order to repair the device, it is necessary to remove carbon deposits from the channels used for air supply by washing them with trichlorethylene. Then it is advisable to wash all the rust removal holes with acid and blow with compressed air. After such a procedure, the device will not require repair for a long time.

A blowtorch is one of the most indispensable things in everyday life, because with its help you can not only warm up the frozen elements of locks or vehicles (owners of snowmobiles are especially familiar with its need), but also perform such equally important work as tarring poultry, carcasses pigs, and so on. Many craftsmen have learned not only to effectively repair it by replacing obsolete parts, but even to make a blowtorch with their own hands from available improvised means. But, first things first, the easiest method to make this multifunctional fixture at home is to make an open flame lamp from a copper pipe with an insert. The copper pipe itself is made bent at a right angle, using a special connecting corner for this purpose. A second fragment of the pipe is attached to this corner, but only of a shorter length.

Among other things, you will need such auxiliary fasteners as ball valves with a rotary mechanism, blindly mounted on a copper or metal piece of pipe, a nut, a tip and a coupling device. Connecting work is carried out using washers, modification of at least M6. The most difficult step in making a blowtorch at home is the manufacture and fixation of the burner. For maximum convenience in fitting the tip, it is best to weld the nut to the inner walls of the copper, which are known to be very thin. Moreover, this approach makes it possible to greatly facilitate not only the procedure for fixing the tip, but also its dismantling and replacement. After that, through holes are made along the entire diameter of the part, the main purpose of which is rigid adhesion.

In order to maintain the most accurate level of the exposed parts of the connection during subsequent soldering, it will be necessary to temporarily fix the auxiliary bolt, which is removed immediately after completion of work as completely useless. To attach the tip, the height of which ranges from eight to ten millimeters, you will need a special recess in the workpiece, the value of which will be about 4.5 millimeters. Also, do not forget about such an important stage that occurs at the final stage of the workflow as wrapping those areas of the ball valve that are adjacent to each other with a special fine mesh. In the end, if you follow the instructions correctly, it should lie exactly under the washer with the M6 modification. Such a simple device will help to stop the gas supply in time, which is undoubtedly very convenient.

At the same time, it cannot be argued that we are talking about the most powerful tool, but it will be able to cope with the simple tasks voiced above, and quite well. If desired, you can make a more complex device that can not only heat or burn surfaces, but also melt them. As an example, we can consider a gas burner made in the form of a spray gun, a more advanced prototype of which is widely used by jewelers. To do this, you will need a strong container made of sustainable materials such as plexiglass or metal, the volume of which will average about one glass (200-250 milliliters). The body of such a mini-burner itself is best made of brass, and the shut-off valve is not welded or screwed onto the thread, but rubbed with a special paste.

As many have probably already guessed, we are talking about GOI paste. At the same time, before putting the spray burner into operation, it is imperative to check the quality of grinding and it is very easy to do. To do this, the brass body, together with a faucet planted on GOI paste, is lowered into the water and the hole is plugged with a finger. After that, air is supplied to the workpiece by pumping the connected pear and observing the presence of oxygen bubbles emanating from the joints. In the case of their complete absence, it is concluded that the connection is made qualitatively. In order to make the fastening of the body to the vessel itself absolutely safe, a gasket must be used in this place to ensure complete tightness. The burner itself is also machined from brass and, in the absence of special auxiliary devices, you can order its manufacture from a qualified specialist.

A blowtorch is a heating device with which a high temperature is obtained during the fiery combustion of some starting flammable substances. Such substances used in the operation of the device are:

petrol;
alcohol;
kerosene and some others.

A blowtorch will help to cope with a large number of tasks: heat a non-screwing nut, heat up tar, etc.

The combustion products obtained during the operation of the device form an elongated torch, while the torch temperature is very high.

The most widely used gasoline blowtorch. In addition to this modification, blowtorches have become widespread, in which natural gas serves as a flame source. This type of blowtorch differs from gasoline not only in the type of fuel burned during their operation, but also in design. The volume of tanks used for fuel in blowtorches can vary depending on the model of the device from 0.1 to 2 liters. The thermal power of these devices can vary in the range from 0.5 to 3 kW, depending on the fuel supply. The power of the lamp is regulated using a special valve that opens the supply of the burned substance.

The design of a gasoline blowtorch

In the device of a gasoline blowtorch, two main structural parts are distinguished - a fuel storage tank and a burner.
An ejector is a device in which kinetic energy is transferred from one medium moving at a higher speed to another.

The burner is called the ejector. The ejector has a design that ensures the promotion of the flow of air and decaying combustion products in the process of fuel combustion. The principle of operation of this device is based on the creation of traction due to the combustion of fuel.
A supply of fuel is poured into the tank, after which it is closed with a tight lid with a seal. The lid with a seal prevents fuel leakage during storage of the device, as well as during its operation. The gasoline storage tank is equipped with a pumping device that allows air to be injected into the tank to create excess pressure in it. Excess pressure contributes during the operation of the device to the transportation of gasoline from the tank to the burner.

A typical device in its composition contains the following structural elements:
fuel tank;

handle for holding the device during operation;

hermetically sealed neck for filling fuel;

pump with valve - to create excess pressure in the tank;

siphon tube providing fuel supply to the evaporator;

needle valve used to regulate the fuel supply;

evaporator;

nozzle;

ejector;

nozzle cleaner.

The fuel that is filled into the tank of the device is a consumable item. The quality of the fuel used determines the opacity of the flame and the clogging of the nozzle, in addition, the degree of explosion that occurs during the use of the device depends on the quality of the fuel. For normal operation of gasoline devices, it is required to use special gasoline or gasoline with an octane rating of at least 80. If low-quality fuel is used, the device may need to be repaired.

Technical characteristics of a blowtorch powered by gasoline

The device, equipment and weight of the blowtorch depends on the model.

A blowtorch is a useful household tool. Tool models produced in Russia have different technical parameters and fuel consumption. There are several parameters that characterize these devices. In order to choose the right tool model, you need to familiarize yourself with the technical parameters of the products. The general parameters for all devices are as follows:

fuel tank capacity;

the set indicator of the maximum filling of the fuel tank;

maximum pressure allowable during operation;

fuel consumption;

tank diameter;

mass of the device without fuel;

availability of manufacturer's warranties;

device service life.

The technical characteristics of the fixture determine the popularity of blowtorch models. The most popular are devices with a tank volume of about 2 liters. These models have an established maximum filling rate in the region of 1.5-1.8 liters, the maximum allowable pressure during operation is 0.3 MPa. The fuel consumption of most of the most common models is 1.2 liters per hour. The mass of such blowtorches in a dry, unfilled form is about 2 kilograms. Most manufacturers of these products give a guarantee for their products for one year. The service life of most products manufactured by Russian manufacturers is 5 years.

The principle of operation of a blowtorch

The blowtorch can run on kerosene and gasoline.

After refueling the device, air is forced into the tank using a pump, which allows you to create an increased pressure inside the fuel cylinder. Excessive air pressure ensures the displacement of fuel into the burner, where it is burned and a flame is formed. To ignite the burner and its stable operation, it must be preheated to a certain level. For heating, a fuel cup is used, which is mounted under the burner. The capacity of one cup is usually enough to heat the burner to the desired temperature.

When a certain temperature value of the burner heating is reached, the fuel coming from the tank to the burner evaporates in the evaporator. Gaseous fuel enters the combustion area and the formation of a flame through a special jet. In the process of burning the evaporated fuel, oxygen is sucked into the combustion area and the process is maintained.

In the process of heating the burner, air is not pumped into the tank for safety reasons, and the shut-off valve must be closed at this moment. The shut-off valve opens only after the burner and evaporator have heated up. After opening the shut-off valve, the flame strength is adjusted. After finishing work with the device, turn it off by screwing the shut-off valve.

Product Applications

About ten years ago, this device was used in every case, if it was necessary to heat surfaces or metal. This product was very often used in production, as most often there was no replacement for it. A blowtorch is used in cases where heating is required in the absence of alternative sources of thermal energy or in the absence of the possibility of using modern technology.

A blowtorch is used for: heating the tip of a soldering iron, welding metal parts up to 1000 degrees, melting metal up to 900 degrees, for removing varnish, when heating frozen pipes.

Most often, this device is used in the following situations:

if it is not possible to use an electric soldering iron during operation, the device allows you to perfectly heat up both the solder and the soldering iron tip;

if it is necessary to weld metal blanks from metals whose melting point is below 1000 degrees;

to carry out, if necessary, the melting of metal having a melting point below 900 degrees;

the tool is used when it becomes necessary to remove the varnish coating on the surface of objects made of metal;

during heating and thawing of frozen water in water supply and sewerage pipes;

if necessary, the operation of warming up the car engine.

In some cases, a blowtorch is used to loosen bolted and other connections when disassembling them, if these connections are rusted. In addition, this device is used in agriculture when slaughtering livestock to carry out resining of animal skins.

Blow Torch Instruction Manual

Before using the device, you need to read the instructions on how to use a blowtorch. This device can be used in operation only after the instructions have been studied.

The device may only be used outdoors. If there is an urgent need to use the device in an enclosed space, it can be used for a short time, followed by high-quality ventilation.

When using the device, the operating instructions must be strictly followed.

Failure to comply with safety regulations when working with a blowtorch can lead to its explosion and other terrible consequences.

Before starting work, the device is refueled, if necessary, with fuel. Filling the tank should be three-quarters of the volume. An empty volume is required to create pressure during operation.

Excessive pressure is required in the tank to create using the pressure pump built into the device. To create pressure, you will need to carry out up to 10 not sharp strokes.

After obtaining increased pressure, it is required to pour fuel into the burner bath. It is best to use alcohol for this purpose, since this fuel does not produce a large amount of soot. The fuel poured into the bath is ignited in order to provide the initial heating of the burner evaporator. In the process of burning fuel in the bath, it is required to protect the device from drafts.

After the combustion of the fuel poured into the bath stops, the needle valve is opened. The fuel coming from the evaporator must be gaseous - if drops are detected in the fuel flow, the burner evaporator warm-up procedure should be repeated.

After receiving a jet of gaseous fuel, it is ignited. If necessary, the volume of incoming fuel can be adjusted using a needle valve. To speed up the process of complete heating of the burner, you can put the lamp on a metal sheet, while the distance from the sheet to the burner nozzle should be 2-3 cm.

When carrying out work, control the state of the torch - it can be increased or decreased using a needle shut-off valve.

If there is instability in the operation of the burner or there is an attenuation of combustion, then it is necessary to clean the nozzle with a needle specially designed for this.

After the end of work, the torch of the device is extinguished. Extinguishing the torch of the device is carried out by screwing the valve and lowering the needle. After the lamp cools down, air is bled from the tank.

Care must be taken when working with the tool.

Precautions necessary when working with a blowtorch

When working with a lamp, strict adherence to safety regulations is required. The fact is that violations of the rules for working with this device can provoke an explosion of the device. The blowtorch is a fire hazardous device. The fuel storage tank is located very close to the open flame of the torch.

During the operation of the device, the following rules must be observed:

the operation of the tool is prohibited if there are leaks of fuel or its vapors in the structure;

it is forbidden to use fuel during the operation of the blowtorch, which, according to its indicators, does not meet the recommendations of the manufacturer;

it is forbidden to operate the device for a long time, since the close location of the burner provokes the heating of the fuel cylinder above 50 degrees Celsius;

it is forbidden to use the device in case of detection of a malfunction of the safety valve;

it is impossible to fill the tank with fuel when the burner is on;

It is not recommended to use the device indoors.

In addition, it should be said that non-compliance with almost any of the safety rules when working with a blowtorch can provoke an explosion and unpleasant consequences.

The implementation of simple safety rules allows you to achieve the most efficient operation of the device during operation.