Pipe system of the boiler kvgm 2 5. Hot water boilers kvgm

Steel hot water boiler KVA-2.5 LZH/G (KVGM-2.5) for operation on liquid and gaseous fuel, with a thermal power of 2.5 MW, produced by Energomash (Barnaul), is intended for heating and hot water supply of industrial and housing and communal facilities. This boiler works in open and closed systems heating with forced water circulation. The boiler is a welded gas-tight monoblock consisting of furnace and convection parts. The furnace is completely shielded. The location of the convective part is upper, with two flue gas passes. The boiler block is thermally insulated with basalt mats and lined with steel sheet. Hatches for inspection and cleaning of convective heating surfaces are provided in the casing. At the front of the unit there is a hinged loophole for mounting the burner, which is also a manhole into the furnace space of the boiler. The following fuels can be used as fuel for the operation of the boiler unit (when an appropriate burner is installed): gas, fuel oil, diesel fuel, oil, waste oils.

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Thanks to the fan and smoke exhauster, KVA-2.5 (KVGM-2.5) works with balanced draft. It is installed as the main source of heating in residential and industrial heating boiler houses, where it works with a constant flow of water. KVA-2.5 operates with a working pressure of up to 6.0 MPa with a coolant temperature at the boiler outlet of 95°C. At the front of the combustion block there is a manhole on which the burner is mounted, which allows servicing the burner without dismantling the boiler. The fuel for these units is liquefied gas, oil, diesel fuel, fuel oil.

Characteristics of boilers KVA-2.5 (KVGM-2.5)

The boiler unit is delivered in one block - the boiler block is insulated. Additionally, it can be equipped with a fan and burner of the required type. Complete set of boilers KVA-2.5:

• security devices,
• instrumentation,
• boiler block,
• stop valve.

Complete set of the boiler KVA-2.5

for operation on natural gas/oil
with a capacity of 2.5 MW

Hot water boiler FOX-2-115GM (KV-GM-2.5-115) is designed for hot water with a working pressure of the coolant at the outlet of the boiler of at least 0.43 (4.3) MPa (kgf / cm 2) and maximum temperature water at the outlet of the boiler up to 115 ° C, used in heating and hot water supply systems for industrial and domestic purposes, as well as for technological purposes.

Specifications

The boiler FOX-2.5-115GM (KV-GM-2-115) is made in a gas-tight design, horizontal layout. The materials of elements working under pressure are selected in accordance with the strength calculation of stationary boilers and steam and hot water pipelines RD -10-249-98, agreed with Rostekhnadzor of Russia.
The combustion boiler block FOX-2.5-115GM (KV-GM-2-115) consists of two side screens, each of which is screened with pipes Ø60 × 3mm with a pitch of 85mm, inserted into the upper and lower collectors. Collectors Ø133×6mm.
Strips 40 mm wide are welded between the pipes. 3 mm thick, ensuring the gas tightness of the panels and the furnace of the boiler FOX-2.5-115GM (KV-GM-2-115). From the front of the boiler FOX-2.5-115GM (KV-GM-2-115) there is a panel with a replaceable loophole for burners various manufacturers, a manhole for access to the furnace volume of the boiler and an explosive valve.
On the left side of the front of the boiler, there are inspection hatches for monitoring and controlling the combustion process.
Boiler FOX-2.5-115GM (KV-GM-2-115) of span type along the gas flow. The convective heating surface is located immediately behind the furnace block and consists of serpentine heating surfaces made of pipes Ø28×3mm with a pitch of 50mm and 70mm. Explosion valves are located in the upper part of the convection unit, which also serve to inspect the heating surfaces during scheduled inspections. The convective block is sheathed with sheets of heat-resistant and heat-resistant steel, creating the first gas-tight layer, which allows the boiler to operate under pressurization.
The boiler block is self-supporting on a base frame with installed sliding supports, having two degrees of freedom, allowing not only to move the elements of the boiler FOX-2.5-115GM (KV-GM-2-115), but also to rotate the furnace and convection unit around its axis during work. Moreover, the angle of rotation of the furnace block is 25º to the left and right side, and the convective block - 150º around the axis of the supports. This solution allows you to repair work on the boiler, associated with the replacement of pipes without powerful lifting mechanisms.
The direction of movement of the FOX-2.5-115GM (KV-GM-2-115) boiler block is from the front to the back. To control the movements on the boiler, a benchmark is installed. To ensure gas tightness between the two elements (furnace block and convection block), a lens compensator is welded in, which allows moving elements up to 40 mm.
For the FOX-2.5-115GM (KV-GM-2-115) boiler, a special foundation is not required on the frame. The design of the foundation is developed by the organization designing the boiler room.
As insulating materials, mineral mats on a fabric basis are used, attached to the strips (welded between the pipes) with the help of pins.
Funnels are mounted on one of the side walls of the boiler to drain the coolant from the overhead lines. The free drain lines from the furnace block and the convection block are led to one side of the boiler. Drainage pipelines have a diameter of 28×3.
To complete the boilers, gas, liquid fuel and combined burners of various domestic and foreign manufacturers with appropriate specifications with description and technical documentation supplied with the burner.
During the installation of the burner, the space between the barrel of the burner device and the removable burner embrasure is filled with refractory material - silica cord filled with type SHKN (X) -1-22 or other materials with a fire resistance of at least 1000º C.
Delivery of the boiler FOX-2.5-115GM (KV-GM-2-115) is possible in a gas-tight version for operation under overpressure or on a balanced draft, depending on the type of burner and the design of the boiler house.
To install the boiler, the packaging parts are first removed from the convection unit and the frames are joined according to the installation drawing. Simultaneously with the installation of bypass pipes, the blocks are docked with the installation of a lens compensator for thermal movements of the boiler. After installing the compensator and ensuring the gas tightness of the block junction circuit, thermal insulation. Install the inlet - outlet collectors of the coolant. Next, you should install the necessary direct-acting devices and automation sensors, mount air vent lines and pressure discharge pipelines.

Hot water water tube boilers KV-GM series designed for heating and hot water supply of housing and communal and industrial facilities. The boiler is a heat unit that heats the water of heating networks directly or through heat exchangers. The boiler is designed for heating water with temperature curves 95\70,115\70,150\70 with a constant water flow through the boiler in the load control range. The load regulation range is 30–100%. Boilers work on natural gas, diesel fuel, fuel oil, solid fuel.

Design

Boiler KV-GM - water-heating water-tube gas-tight, with horizontal or vertical arrangement heating surfaces. Boilers by movement flue gases are one-way (span), two-way, three-way. The design of the boiler includes a combustion chamber and a convective heating surface located behind the combustion chamber. The combustion chamber of the boiler and the convective part are shielded by membrane panels assembled from pipes with a diameter of 51x4.0 mm, with welded-in spacers, which ensure the gas tightness of the boiler for pressurized operation. The convective heating surface consists of a certain number of packages. Each package is assembled from horizontally or vertically arranged screens made of U-shaped pipes with a diameter of 28x3 mm. Drainages and air vents are made of pipes with a diameter of 28x3 mm. The design of the boiler provides the necessary hatches and peepers for the operation of the boiler. The gas-tight design of the boiler allows the use of light thermal insulation 50 mm thick with decorative trim. It is also possible to use boilers for operation with vacuum.

Burner devices

KV-GM boilers are used with modern automated burners of leading European and Russian manufacturers approved for use by the boiler manufacturer.

Advantages

1. High efficiency– is ensured by the design of the boilers and is characterized stably high value at different loads.
2. Boilers are gas-tight- these are stable characteristics of the boiler during long-term operation.
3. Low NOx emissions– guaranteed calculated design combustion chamber and efficient combustion fuel on modern automated burners.
4. Quick exit of the boiler to the specified mode- is provided by a small volume of water in the boiler and high speeds of water movement in the pipes.
5. Reliable and simple design boilers, long service life– the requirements and operating experience of Russian heating networks are taken into account, normative term the service life of the boilers is 20 years.
6. The possibility of using boilers in open schemes heat supply- is an important advantage of water-tube boilers, in contrast to fire-tube boilers.
7. High maintainability- this is accessibility to any node of the boiler, which allows you to quickly and easily least cost carry out the necessary repairs.
8. Block supply of boilers – quality manufacturing boilers in the factory, significantly reduces costs and time for carrying out installation work, transportation to the construction site.
9. A wide range of boilers KV-GM– allows you to choose the right capacity and competently carry out projects of quarterly and district boiler houses, as well as to reconstruct existing boiler houses with the replacement of boilers from other manufacturers.
10. Optimum ratio price/quality of boilers- allows you to significantly reduce and optimize capital costs for the construction of district heating sources.
11. Application of boilers with burners from leading European and Russian manufacturers.

The boilers have modern and robust design, are mass-produced by the manufacturer and delivered to customers as:

• Three-way for flue gases
• 10 sizes / 22 modifications
• Modifications for temperature charts 95\70 °С, 115\70 °С, 150\70 °С
• All boilers are certified according to the GOST R system and have permission to use Rostekhnadzor of the Russian Federation
• The standard operating life is at least 20 years

Hot water boilers KV-GM are designed for heating residential, public and industrial buildings with an absolute pressure in the system of 0.6 MPa (6 kgf / cm 2) and a heating temperature of 95 °C.

Boilers KV-GM-1.16; KV-GM-2.32; KV-GM-3,48-95N

1. Appointment.
Hot water boilers of the KV-GM series are designed to produce hot water with a pressure of 0.6 (6.0) MPa (kgf / cm 2) and a nominal temperature of 95 ° or 115 ° C, used in heating and hot water supply systems of residential, public and industrial buildings .

2. The composition and operation of the boiler.
2.1. The boiler is made in a gas-tight design, has a horizontal layout, consists of a combustion chamber and a convective flue.

The combustion chamber, which has a horizontal layout, is shielded with pipes O51x3 with a pitch of 75mm, included in the collectors O108x4.5mm. The convective heating surface is located above the combustion chamber and consists of U-shaped screens made of O28x3 pipes with a pitch of S1=64mm and S2=40mm. The side walls of the convective flue are closed with pipes Ø83x3.5 mm and are at the same time collectors of convective screens.

From the front of the boiler there is an uncooled openable front chamber, on which the burner is installed. The design of the chamber allows it to be opened to any side of the boiler, which provides easy and convenient access to the furnace space of the boiler. Access to convective surfaces is provided by a manhole located above the front chamber. The uncooled manhole cover (gas duct cover) opens to left side boiler (see from the front).

2.2. There is excess pressure in the combustion chamber during operation. Tightness is ensured by an asbestos-free sealing cord inserted into the guides on inside front chamber and front end of the boiler, inner part the front chamber and the manhole cover are thermally insulated with a light lining.

2.3. load-bearing frame the boiler is missing. The boiler has supports welded to the lower collectors. With supports, the boiler is mounted on channel boxes 200 mm high, supplied by the factory. Channel boxes, in turn, are welded to the floor of the boiler room (if it is metal), or attached to anchors concreted in concrete floor(not supplied by the factory).

2.4. The boiler is equipped with automatic air vents, and the removal of air directly from the boiler takes place without the intervention of maintenance personnel. It is necessary to provide for the removal of air only from the inlet-outlet pipelines. Drainage lines and fittings for draining condensate from the furnace are located on both sides of the boiler under the lower collectors. The boiler has a gas-tight design, light tube thermal insulation, sheathed with laminated sheet metal from protective coating.
To complete the boilers, in agreement with the customer, gas, light-liquid fuel and combined automated burners of various domestic and foreign manufacturers that have the appropriate technical characteristics, permission to use Rostekhnadzor and a certificate of conformity with GOST RF can be used.

3. Water regime.

3.1. The circulation of water in the boiler is forced. The water-chemical regime must ensure the operation of the boiler without deposits of scale and sludge on heat-receiving surfaces.

3.2. The quality of network make-up water must comply with:

KV-GM-1.16-95N, KV-GM-2.32-95N, KV-GM-3.48-95N

4. Specifications

* When using fuels other than the calculated one, it is necessary to adjust the technical characteristics.
** weight of the boiler is given without fittings and automation unit

Boilers KV-GM-4,65-115H/150H

1. Appointment.
Hot water boilers with a heat output of 4.65 (4.0) MW (Gcal/h) are designed to produce pressurized hot water with a nominal temperature of 150 °C; pressure up to 0.9 (9.1) MPa (kgf / cm 2) and a nominal temperature of 115 ° C; used in heating and hot water supply systems for industrial and domestic purposes, as well as for technological purposes.

2. The composition of the boiler.
2.1. The boiler is made in a gas-tight design, consists of a combustion chamber and a convective flue. The combustion chamber, consisting of a front, ceiling, hearth, rear and two side screens, is screened with pipes O60x3mm with a pitch of 80mm, included in the collectors O159x7 mm. Peepers are provided on the side walls of the firebox. Rectangular manhole (405×510mm) is located on the rear screen of the boiler combustion chamber.

The convective heating surface, located above the combustion chamber, consists of U-shaped screens made of pipes O32x3 with a pitch of S1 = 80mm and S2 = 33mm. Access to convective surfaces is provided by a ceiling screen convective part of a rectangular manhole 400×450mm.

2.2. The circulation of water in the boiler is forced. Water supply (with temperature chart 70-150 ° C) is carried out to the collector of the left section of the convective block. Water outlet - from the collector of the right section of the convective unit.
Water supply (with a temperature graph of 70-115 ° C) is carried out in the collector of the convective block. Water drainage - from the collector of the screen of the ceiling furnace block.
2.3. From the front of the boiler there is a front shield, on which the burner is installed.

2.4. The boiler is self-supporting, has 6 supports welded to the horizontally located collectors of the combustion unit. The boiler rests on concrete pillars. Supports have different height providing a slope of 07", for effective removal boiler condensate. The design of the foundation and embedded parts is developed by the organization designing the boiler room.

2.5. The boiler consists of two main elements: furnace and convection blocks. The boiler has modern design, lightweight lining and sheathed with a laminated metal sheet with a protective coating. The lining thickness is 60mm.

2.6. The furnace and convection blocks are joined together by welding.

2.7. On the right side and left walls of the boiler there are drain funnels into which air lines are discharged. Drainage pipes for draining water from the boiler have a diameter of O32x3, for draining condensate - O18x2.

2.8. The selective vacuum device is located on the side screen of the combustion chamber.

2.9. An explosive safety valve is located on the rear screen of the convective unit.

2.12. The gas box is attached from the front to the boiler by welding.

2.13. The burner is mounted on the front chamber.

2.14. The boiler is made in a gas-tight design and ensures the operation of the boiler under overpressure or under vacuum, depending on the type of burner and the design of the boiler house.

3. Quality of network make-up water.
The quality of network make-up water must be appropriate for:

KV-GM-4.65-115N - RD 24.031.120-91.

KV-GM-4.65-115N - PB 10-574-03 "Rules for the device and safe operation steam and hot water boilers»

4. Specifications

5. Completeness of delivery of boilers

Boilers KV-GM-7.56-150N and KV-GM-7.56-115N

1. Appointment
1.1. Hot water boilers KV-GM-7.56-150N, KV-GM-7.56-115N are designed to produce hot water with a temperature of 150 ° C and 115 ° C, used in heating systems and hot water supply for industrial and domestic purposes, as well as for technological purposes.

2. The composition of the boiler.
2.1. The boilers are made in a gas-tight design, have a horizontal layout, consist of a combustion chamber and a convective gas flue. The combustion chamber, consisting of a ceiling, bottom and two side screens, is screened with pipes O60x3mm with a pitch of 80mm, included in the collectors O159x7 mm. Plates 20 mm wide are welded between the pipes, which ensure the gas tightness of the boiler furnace panels. The pipes of the side screens are arranged horizontally.

The convective heating surface, located behind the combustion chamber, consists of U-shaped screens of pipes O32x3 with a pitch of S1=80mm and S2=33mm. The side walls of the convective flue are closed with horizontal pipes Ø60x3mm and welded into vertical collectors Ø159x7mm. Plates 20 mm wide are welded between the ceiling and bottom pipes of the convective flue, ensuring the gas tightness of the boiler panels.

The gas-tightness of the side walls is ensured by welding an angle 32x32x4. Access to convective surfaces is provided by a rectangular manhole 400×450mm located above the convection chamber and a manhole in the gas box.

2.2. The circulation of water in the boiler is forced. Water is supplied to the collector of the convective part, water is removed from the collector of the combustion unit.

2.3. From the front of the boiler there is an uncooled front rotary chamber, on which the burner is installed.
This rotary chamber is designed in such a way that it can be opened to any side of the boiler without removing the burner, thereby providing access to the boiler combustion chamber and sections of the convective part.

2.4. The boilers are self-supporting, they have 8 supports welded to the vertically arranged collectors of the blocks. The supports located at the junction of the convective flue and the combustion chamber are fixed. When supplied as a single block with supports, the boiler rests on a frame made of channel No. 20. When supplied in two blocks - furnace and convective - on concrete racks. The pit device is necessary when installing the boiler blocks.

2.5. Boilers consist of two main elements: furnace and convection blocks. Each has a lightweight lining and metal cladding. The lining thickness is 60mm.

2.6. The furnace and convection blocks are connected directly to each other using a flange connection and a sealing cord (included in the delivery set in case of separate delivery of the boiler).

2.7. On the right side wall of the boiler there are drain funnels into which air lines are led. Drainage lines and fittings for condensate removal from the combustion and convection units are located on both sides of the boiler.

2.8. On the side walls of the boiler there are viewing peepers, the selective vacuum device is located on the ceiling screen of the combustion chamber.

2.9. There are two explosive safety valves on the ceiling screen of the combustion chamber and on the gas box.

2.10. To complete the boilers, gas, light-liquid fuel and combined automated burners of various domestic and foreign manufacturers can be used, having the appropriate technical characteristics and a certificate of conformity from Russia.

2.11. For maintenance and repair of the boiler, a ladder (ladder) is provided.

2.12. The gas box is attached to the boiler with a flange connection and has a matching flange for connection to the boiler chimney.

3. Device and work.
3.1. The coolant (water) with a temperature of 70 ° C through the water supply pipeline Du150 enters the convective surfaces boiler heat exchange. Then, through the bypass pipeline, it enters the furnace screens, where, by radiating heat from the burner flame, it heats up to a temperature of 150 ° C - for the KV-GM-7.56-150N boiler and up to 115 ° C - for the KV-GM-7.56-115N . Then the water enters the side collector of the combustion unit, from where it is transferred to the heating networks through the water outlet pipeline.

3.2. The burner is mounted on the front chamber.

3.3. The boiler is made in a gas-tight design and ensures the operation of the boiler under overpressure or under vacuum, depending on the type of burner and the design of the boiler house.

3.4. The quality of network make-up water must correspond to

KV-GM-7.56-115N - RD 24.031.120-91
KV-GM-7.56-150N - PB 10-574-03 "Rules for the design and safe operation of steam and hot water boilers"

4. Specifications

5. Completeness of delivery of boilers of the KV-GM series