RU2346211C1 - Hot water boiler and method of its manufacture - Google Patents

Abstract

FIELD: heating systems.

SUBSTANCE: inventions are intended for water heating, and can be used in heating systems. Hot water boiler consists of a frame made in the form of an internal water jacket the inner wall of which is connected with hollow water division walls forming a zigzag-shaped gas duct, at that each division wall is connected to the boiler water jacket on three sides. Boiler frame is equipped with external water jacket with outer wall made in the form of a cylinder flattened along the chord on the outside, and with inner wall made in the form of a parallelepiped which also serves as outer wall of internal water jacket. Between the walls of the boiler external water jacket there fixed are metal division walls. In external water jacket, the distance between inner wall and division wall equals to thickness of internal water jacket, and distance between upper wall of internal water jacket and common boiler cover is more than it at least twice. Hollow water division walls are provided with lower horizontal wall and upper wall located at an angle not less than 3° to horizontal plane, and have the length which is more, not less than 3.5 times, than the distance between hollow water division wall and inner wall of internal boiler water jacket. Zigzag-shaped gas duct of the boiler is connected to the flue through a confuser. Hot water boiler manufacturing method consists in preparing parts, modules, and then assembling the boiler. Flat parts are made from steel plates of design thickness for manufacturing the whole boiler; on flat parts there cut are mounting seats and holes, after that hollow water division walls are assembled, which are the base for the whole boiler assembly. After that, to water division walls there attached and rigidly fixed are all the rest parts till the whole boiler construction is obtained. Flat parts are connected by means of welding in a horizontal position.

EFFECT: improving capacity, fuel saving, improving maintainability and ease of maintenance, increasing overhaul life and total service life of hot water boiler, as well as simplifying manufacturing process, improving processability, and reducing materials consumption.

7 cl, 6 dwg

Description

The group of inventions "Hot water boiler and method of its manufacture" relates to a power system, namely to hot water boilers of small and medium power from 22 to 250 kW for burning both solid and other types of fuel. The hot water boiler is designed for heating and hot water supply of residential, industrial and office buildings.

Known technical solutions for boilers having a body in the form of a water jacket, inside of which are hollow partitions connected to a water jacket.

The device "Boiler" is known (see ed. St. No. 1733867 A1, IPC5 F24H 1/40, publication date 05/15/92, application No. 4823623/06 of 05/07/90).

The boiler contains a casing in the form of a water jacket, consisting of a front, back, bottom and side walls, a firebox is formed inside the casing, a grate is located in the lower part, there are openings with doors in the front wall of the casing and firebox, and an ash pan in the lower part. Inside the firebox, in the transverse direction to the front and rear walls, there are hollow partitions connected through the side surfaces of the firebox to the boiler water circuit and alternately with the back and front surfaces of the firebox. The zigzag gas channel in the gas duct is formed by hollow partitions, each of which is connected to the boiler water jacket on three sides.

The disadvantages of the boiler are as follows.

The labyrinth gas channel of the boiler does not provide intensive heat transfer from fuel combustion products moving upward to the surfaces of hollow partitions filled with coolant, since the zigzag channel has unequal distances for the movement of gases, namely, a large distance from the end of the circuit to the water jacket in one case, a small distance between the hollow partitions. In the first case, a vacuum is created, in the second case, gas stagnation is created.

The location of the lower hollow partition creates a dead zone for the passage of gases, which violates the intensity of heat transfer.

The boiler does not have a vacuum control system (draft) in the boiler furnace.

Not provided to prevent deformation of the walls of the water jacket and hollow water partitions under water pressure and the rigidity of the entire structure.

With an increase in boiler power, the calculated volume of water in the water jacket increases, which needs to be heated, which leads to an increase in fuel consumption and a decrease in boiler productivity.

Known technical solutions of the invention "Heating boiler" (see patent for invention No. 2263851 C2, IPC7 F24H 1/40, publication date 10.11.2005, application No. 2003111105/06 of 04.17.2003).

The boiler contains a casing in the form of a water jacket with hollow heat-exchange elements introduced into the internal volume, installed horizontally and forming a closed loop of the heat-transfer medium with the cavity of the water jacket.

The central elements are installed at different levels of height symmetrically along the longitudinal axis of the transverse internal section of the boiler horizontally and parallel to each other, and their end faces are connected to opposite sides of the framing shirt.

Two other elements are installed between them at the same level diametrically opposite so that the side of each element adjacent to the inner side wall of the boiler, and their end sides are connected to the framing shirt.

The disadvantages of the boiler are as follows.

The location of the central hollow heat exchange elements, welded into opposite walls of the water jacket opposite each other, affects the circulation of the coolant and can cause vaporization.

Central hollow heat transfer elements are welded into the water jacket on one side, which leads to a deterioration in the circulation of the coolant and reduces heat transfer.

During the movement of fuel combustion gases along the gas channel formed by such an arrangement of hollow elements, dead zones are formed, as a result of which heating and circulation of the coolant are not uniform.

The uneven distance between the hollow elements and the walls of the water jacket and between the hollow elements also creates dead zones, thus reducing the boiler performance.

In the boiler there is no regulation of the rarefaction system in the furnace.

Not provided to prevent deformation of the walls of the water jacket under water pressure.

With an increase in boiler power, the calculated volume of water in the water jacket increases, which needs to be heated, which leads to an increase in fuel consumption and a decrease in boiler productivity.

A known device "Heating boiler" (see patent No. 2122688 C1, publication date 11/27/1998, IPC 6 F24H 1/00, application No. 96113930/06 of 05/05/1996).

The boiler contains a casing in the form of a water jacket framing the furnace and the gas duct, equipped with hollow partitions in communication with the cavity of the shirt and forming a labyrinth gas channel in the gas duct, a cavity is installed at the bottom, which forms a closed volumetric contour of the heat-transfer medium with the heat transfer circuit.

Partitions - heating surfaces are made in the form of flat hollow heat-exchange elements in an amount of 2-4, installed horizontally and diametrically opposite at different heights with overlapping each other in the furnace space, and connected to a coolant circuit.

The water jacket of the casing can be made in the form of a cylinder, and the heat-exchange elements in the form of segments with longitudinal channels and in the form of a rectangular parallelepiped, and the heated heat-exchange elements - in a rectangular shape with longitudinal channels.

The water inlet pipe to the boiler is located at the bottom of the boiler, the water outlet pipe is at the top of the boiler.

The disadvantages of this boiler are as follows.

A large amount of water in the system, which is determined by the distance between the walls of the water jacket (thickness of the water jacket). This makes it difficult to warm up the system and reduces the performance of the boiler.

Dead zones are formed when fuel combustion gases move upward due to the large distance from the hollow partitions to the walls of the water jacket.

The shape of the heating surfaces in the form of flat hollow elements does not allow to increase the speed of movement of the combustion gases in the labyrinth gas channel.

With an odd number of heating elements, dead zones appear on the opposite wall of the boiler, which reduces the efficiency of the boiler, and the gases at the top point flow freely into the chimney.

The boiler does not have a vacuum regulation in the furnace.

Not provided to prevent deformation of the walls of the water jacket under water pressure.

A device is known “Hot-water cast-iron universal boiler” (see patent No. 2149320 C1, publication date 05/20/2000, IPC 7 F24H 1/08, application No. 98106201/06 of 03/31/1998).

The boiler can run on solid fuel and gas, for which there are rectangular openings with doors for installing the corresponding devices.

The boiler contains a firebox of circular cross-section with the transition at the top to a square double-walled hot-water section mounted on the square surface of the fire-box, with lower and upper double-walled sections having a square cross section respectively located above and below it. The double walls of the lower section are connected to the water channel of the furnace.

In each section, two hollow partitions are made in two opposite directions with spaces between the heat exchange surfaces of the partitions and displacements in opposite directions between each other, and the freed spaces from the displacement of the partitions form a zigzag passage for gases.

The sections are equipped with hatches for cleaning the surfaces of the partitions, and the lower upper and upper water heating sections are equipped with nozzles with throttle valves for connection to the chimney.

The material of which the boiler is made is cast iron.

The disadvantages of a hot-water cast-iron universal boiler are as follows.

The universal hot-water pig-iron boiler is made of individual cast-iron sections, which complicates assembly and repair.

The operation of the boiler is based on the stepwise heating of the sections, starting from the bottom section.

The shape of the heating surfaces in the form of flat hollow elements does not allow to increase the speed of movement of fuel combustion gases in a zigzag gas channel.

Complex control of the draft in the boiler due to the presence of several shutters for connection to the chimney, which are manually regulated.

Cast iron - the material the boiler is made of has heat transfer several times less than steel, which increases fuel consumption. Cast iron is destroyed by sudden changes in temperature.

If leaks are detected in the cast-iron sections, they must be completely replaced, since welding cannot be used.

A known device "Heating boiler" (see patent for invention No. 2285208 C1, IPC F24H 1/00, publication date 10/10/2006, application No. 2005113412/06 of 05/03/2005).

A heating boiler is a combination heating boiler for burning solid, liquid and gaseous fuels.

The heating boiler contains a casing in the form of a water jacket with a heat carrier framing the firebox with grates, and a labyrinth chimney; loading, unloading windows and an ash pan are made in the casing.

The boiler is equipped with a system for maintaining rarefaction in the fuel path, containing a device for measuring vacuum in the furnace, connected with an actuator interacting through a system of levers with a damper installed in the chimney.

The boost system is made in the form of a fan connected to the side wall of the ash pan.

For ease of maintenance, windows are made on the front wall of the boiler in the places where the chimneys are bent.

The disadvantages of the "Heating boiler" are as follows.

The construction of a heating boiler is difficult to manufacture, the common labyrinth chimney of which is made with a partition separating the boiler and the economizer by the heat carrier.

The boiler water jacket system is filled with a large volume of water, which makes it difficult to quickly warm up the system.

Not provided to prevent deformation of the walls of the water jacket under water pressure.

The chimney, made in the form of a flat pipe with a zigzag stroke, always directed upward, has unevenly distributed unequal pipe sizes for the movement of fuel combustion products.

The hollow partitions, forming a zigzag stroke, have a triangle shape in cross section, which reduces the heating surface, reduces the productivity of the boiler, and there is an uneven heating that promotes vaporization in the protruding parts.

Hollow partitions are connected to the water jacket on only one side, which does not allow the coolant to circulate, it stagnates.

The systems for maintaining the vacuum of the heating boiler and pressurization have a complex, bulky device, work separately, are equipped with additional equipment.

Not provided to prevent deformation of the walls of the water jacket under water pressure.

The closest analogue adopted for the prototype is the technical solution described in patent SU No. 1733867, F24H 1/40, 05/15/1992, which describes a boiler containing a firebox, an ash pan framing their body in the form of a water jacket, the inner wall of which connected to hollow water partitions forming a zigzag gas channel, a rarefaction system in the boiler furnace, network water supply at the bottom, hot water outlet at the top, windows are made in the housing, each of the partitions being connected to the boiler water jacket on three sides.

The objectives of the invention are as follows.

Increasing the productivity of the boiler, saving fuel, improving the convenience and ease of maintenance, increasing the overhaul period and the overall life of the boiler.

A water boiler is proposed that contains a firebox, an ash pan framing their body in the form of a water jacket, the inner wall of which is connected to hollow water partitions forming a zigzag gas channel, a vacuum system in the boiler furnace, network water supply at the bottom, hot water outlet at the top, in the case windows are made, each of the partitions being connected to a water jacket on three sides,

characterized in that

the boiler body is equipped with an external water jacket, the walls of which are the external, made in the form of a cylinder, truncated along the chord from the front side, and the internal, made in the form of a parallelepiped, at the same time the external wall of the internal water jacket,

between the walls of the external water jacket of the boiler on the side walls of the internal water jacket at the same distance fixed metal partitions, which are located on both sides at a certain distance from the bottom of the boiler, at least 30 mm, forming a gap,

the space of the boiler cut off by the partitions is closed from above with metal sheets, through which in the center pressure metal tubes for hot water from the pipe are connected by means of a pump mounted on the top cover of the boiler,

discharge metal tubes for supplying hot water are lowered by at least 2/3 of the height of the partition (H is the height of the partition),

hollow water partitions are located at the same distance between the hollow water partitions and the inner wall of the water jacket, as well as between the hollow water partitions,

the internal water jacket of the boiler and the hollow water partitions are made with the same distances between the walls for filling with water, i.e. the internal water jacket of the boiler and the hollow water partitions have the same thickness,

in the outer water jacket, the distance between the inner wall and the partition is equal to the thickness of the inner water jacket, and the distance between the upper wall of the inner water jacket and the common boiler cover is at least twice as large,

water circuits have a length that is not less than 3.5 times the distance between the hollow water partition and the boiler water jacket, its inner wall,

hollow water partitions are made with a horizontal lower wall and an upper wall located at an angle of at least 3 ° to the horizontal,

the system of creating a vacuum in the boiler furnace is made using a temperature controller connected through a lever and, for example, a chain with an air damper on the furnace door, which automatically adjust the draft in the boiler furnace according to the set temperature in the range from 40 to 115 ° C, opening the air damper ,

the zigzag gas channel of the boiler (gas duct) is connected to the chimney through a confuser mounted on the rear wall of the boiler, which is connected to the boiler on the larger side and to the chimney, the narrowing angle of at least 15 °,

screeds are evenly installed on the top cover of the boiler.

The present invention improves the efficiency of the boiler, the convenience and ease of maintenance, increase the overhaul time and overall life of the boiler, to achieve fuel economy.

The tasks set have been achieved in several areas.

Boiler productivity increase is achieved

the optimal amount of coolant in the water jacket and boiler circuits for economical operation of the boiler,

the presence of an external water jacket can increase the productivity of the boiler due to the use of hot water entering through the gap formed by the metal partitions to heat the internal water jacket, which also saves fuel,

increased heat transfer on the surfaces of hollow water partitions due to their location, in which there are no stagnant zones, the coolant is evenly heated, vaporization is excluded,

even distribution of the heat carrier in the system of the water jacket and hollow water partitions having everywhere the same distance between the walls, as well as between the partition and the inner wall of the water jacket, which allows you to quickly and uniformly warm up the entire boiler system,

the implementation of a multi-way zigzag channel so that the hot gases from the burned fuel evenly flow around the water circuits without forming stagnant zones,

the size and shape of the hollow water partitions, including the execution of the upper wall of the partition at an angle, provides uniform heating of the coolant, eliminating vaporization.

Fuel economy is achieved thanks to the system of creating a vacuum in the boiler furnace with the help of a temperature regulator connected by a lever and, for example, a chain with an air damper, which automatically adjusts the draft in the boiler furnace according to the set temperature in the range from 40 to 115 ° C, opening the air damper, as well as the use of a confuser connecting the boiler and the chimney, to increase traction.

Convenience and ease of maintenance are achieved by using a temperature regulator to create a given vacuum in the boiler furnace, and the boiler can operate for 10-12 hours without additional maintenance after fuel loading.

The use of flat components in the boiler allows the windows to easily clean the contour surfaces of soot and soot.

Increase in the overhaul period and the overall life of the boiler due to the system of creating a vacuum in the boiler furnace, which works automatically,

the cylindrical shape of the outer wall of the outer water jacket avoids wall deformation from water pressure,

location, shape of hollow water partitions forming a zigzag duct

evenly mounted screed walls of the water jacket on the top cover of the boiler to avoid deformation from water pressure.

To clarify the described object "Boiler" drawings are given.

Figure 1 - General view of the boiler (front view).

Figure 2 is a top view of the boiler.

Figure 3 is a front view of the boiler, section AA on the outer water jacket.

Figure 4 is a top view of the boiler, section BB along the outer water jacket.

Figure 5 - section bb in the inner water jacket (front view).

6 is a section GG on the inner water jacket (side view).

The proposed device "Hot water boiler" is as follows.

The boiler 1 contains a furnace 2, an ash pan 3, a housing made with an external water jacket 4 and an internal water jacket 5, a window 6, pipes for supplying coolant (water) 7.

The outer water jacket 4 is located around the inner water jacket 5, framing the firebox 2 and the flue. The outer wall 8 of the outer water jacket 4 has the shape of a cylinder truncated along the chord from the front side, and the inner wall 9 is the outer wall of the inner water jacket 5, which is made in the form of a parallelepiped.

Between the external 8 and internal 9 walls of the external water jacket 4 of the boiler at the same distance from the side walls of the internal water jacket 5, metal partitions 10 are fixed, which are located at a certain distance from the bottom of the boiler, forming a gap with a height (h) of at least 30 mm on both sides.

The space of the external boiler water jacket cut off by partitions 10 (chords) is closed from above by metal sheets (segments) 11, through which metal pressure pipes 12 are connected in the center for supplying hot water from the hot water pipe using a pump 13 mounted on the common top cover of the boiler 14. The discharge metal tubes for supplying hot water 12 are lowered by at least 2/3 of the height of the partition (H is the height of the partition).

The inner walls 15 of the inner water jacket 5 are connected to the hollow water partitions 16 filled with water and arranged so that they form a zigzag channel for the passage of fuel combustion gases (gas duct).

The internal water jacket 5 of the boiler is designed so that the coolant fills the same distance m between the external 9 and internal 15 walls from all sides in accordance with the optimal amount of water in the boiler, which is determined for this type of boiler by its power.

Hollow water partitions 16 are mounted parallel to the grate in a stepwise order from opposite sides of the boiler, forming a zigzag gas channel for the movement of hot gases from burnt fuel. A zigzag gas channel reduces heat loss with flue gases.

Hollow water partitions 16 filled with water are connected to the inner wall of the water jacket 5 on three sides.

Hollow water partitions 16 are made with a lower plate located horizontally to the base of the boiler, and an upper plate having an angle of inclination α to the horizontal, which is at least α> 3 °. This provides a quick circulation of water and eliminates vaporization in the circuit, which also allows you to evenly heat the hollow water partitions.

The distance m between the outer 9 and inner 15 walls of the inner water jacket of the boiler 5 is equal to m1, the distance between the upper and lower surfaces of the hollow water partitions 16, i.e. m = m1, namely, the inner water jacket of the boiler and the hollow water partitions have the same thickness.

The hollow water partitions 16 are arranged in such a way that a uniform passage of heated gases from the burnt fuel through a zigzag gas channel is ensured.

The distance n between the hollow water partitions 16 is the same with the distance 1 (n = 1) between the inner wall 15 of the inner water jacket 5 and the hollow water partitions 16, and if L is the total length of the circuit, the L / I ratio is at least 3.5 .

The system of creating a vacuum in the boiler furnace with the help of a thermostat allows for the regulation of fuel combustion, which makes it possible to save fuel and ensure its more complete combustion, as well as maintain the temperature of the coolant in a given mode.

The furnace 2 is closed by a door 17, equipped with an air supply control device, including an air damper 18 with a lever 19 with a fixed chain 20 connected to the thermostat 21, for automatic control of the air supply to the boiler.

The temperature controller 21 is connected, for example, by a chain 20 with the lever 19 of the air damper 18. In accordance with a predetermined temperature in the range from 40 to 115 ° C, the temperature controller 21 by means of the lever 19 and the chain 20 opens the air damper 18, thereby automatically regulating the draft in the boiler.

In order to remove the gases of the burned fuel, increase the draft in the boiler and ensure the complete exhaust of the exhaust gases, the zigzag gas channel is connected to the chimney through a confuser 22 installed on the rear wall of the boiler, which is connected to the boiler with the larger side and the chimney, the narrowing angle of at least 15 °.

To avoid deformation from water pressure on the top cover of the boiler, ties 23 are evenly installed and are rigidly fixed, for example, by welding.

The supply of network water at the bottom is through the nozzles 7, the drainage of hot water through the nozzle 24 in the upper part of the boiler, which provides intensive circulation during normal operation and when using forced circulation using a pump.

The proposed hot water boiler operates as follows.

In the boiler 1, fuel gases, which are formed during the combustion of solid fuel in the furnace 2 on the grate, move upward along the zigzag gas channel formed by the hollow water partitions 16.

Fuel burns on the grate. The furnace 2 is closed when burning by a door 17 provided with an air damper 18 and a lever 19.

The air supply is automatically controlled by the temperature controller 21 in accordance with the set temperature in the range from 40 to 115 ° C by opening the air damper through the lever 19 and the chain 20.

Heated fuel gases rise upward along the zigzag gas channel, uniformly flowing around the hollow water partitions 16, and exit into the chimney through the confuser 22. In this case, no stagnant zones are formed and steam does not form on the entire surface of the partitions.

Mains water is supplied through pipes 7 at the bottom, and hot water is discharged through the pipe 24 at the top of the boiler with a temperature of not more than 115 ° C to consumers.

The work of the external water jacket 4 of the boiler is as follows. Water comes from the consumer with a temperature of not more than 45 ° C below through the nozzles 7 of the boiler’s water jacket on both sides, mixes with hot water coming in through the discharge pipe 12 from the pump 13 and through the slot formed on both sides by the partitions 10 and the bottom of the boiler, between the partition 10 and the outer wall 9 of the inner water jacket with a temperature of at least 85 ° C, quickly warming the water in the inner water jacket 5.

Ash cleaning from the surfaces of the water circuits is carried out periodically during repairs using scrapers through windows 6.

A concrete example of the operation of a boiler can be given. In the boiler room of the House of Culture in the village of Mysovka, Slavsky District, Kaliningrad Region, a prototype of a hot water boiler is installed and is working.

Thus, the proposed invention "Hot water boiler" allows to increase the productivity of the hot water boiler, increase fuel economy, improve the convenience and ease of maintenance, increase the overhaul period and the overall life of the boiler,

A method of manufacturing a boiler.

The invention is intended for the manufacture of hot water boilers.

A known method of manufacturing a water boiler (see patent for the invention No. 2267715 C1, IPC F24H 1/12, publication date 10.01.2006, application No. 2004116398/06 of 02.06.2004).

A method of manufacturing a tubular type boiler consists in the preparation of pipes, the preparation of screens by welding, the assembly of screens by the method of welding of convective and furnace parts. The bypass blocks are assembled from short pipes and then the bypass blocks are assembled, from which the screens and the boiler are assembled further.

Thus, a method of manufacturing a hot water boiler consists of procuring parts, assembling blocks, screens of the entire hot water boiler from blocks.

The above method of manufacturing a hot water boiler relates to tubular boilers, has a large number of parts (pipes), a complex assembly process and low-tech manufacturing. This boiler is a very distant analog.

The objective of the invention is to simplify the manufacture of the design of a hot water boiler, increase manufacturability, and reduce material consumption.

The specified technical result is achieved due to the fact that for the manufacture of a hot water boiler, flat parts are prepared from steel metal sheets of the calculated thickness, hollow water partitions are assembled, first the walls of the internal water jacket, then the external water jacket are attached to them.

Assembly begins with hollow water partitions, to which the remaining parts are then gradually connected until a complete boiler design is obtained.

The connection of flat parts is performed by welding in a horizontal position.

A method for manufacturing a hot water boiler is proposed, which consists in procuring parts, blocks and then assembling the boiler,

differs in that

they prepare flat parts from steel sheets of the estimated thickness for the manufacture of the entire boiler,

seats and holes are cut out on flat parts,

then collect the hollow water partitions, which are the basis for the assembly of the entire boiler, since then they are attached and gradually rigidly fixed to all other parts until the complete design of the boiler is obtained,

the connection of flat parts is performed by welding in a horizontal position.

The manufacture of a hot water boiler is as follows.

A method of manufacturing a water boiler consists in the preparation of all flat parts from steel sheets of the estimated thickness, and many interchangeable parts are procured due to the design features of the boiler device.

On the flat parts of the side walls 15 of the inner water jacket, the seats for the hollow water partitions 16 are cut out.

On the flat parts of the front outer wall of the water chamber, holes are cut out for the windows 6, the furnace 2 and the ash pan 3.

Collect hollow water partitions 16 from the prepared flat parts.

Then, the walls 15 of the inner water jacket are assembled. To do this, in the seats cut out in the side walls of the inner water jacket, insert the hollow water partitions 16 and fasten first in one, then in the second side wall 15. They attach the front and back walls of the inner water jacket 5. Thus, the body of the inner a water jacket 5 in the form of a parallelepiped with a gas duct inside.

All connections of flat parts are performed rigidly, by welding, in a convenient horizontal position.

Then collect the outer wall 9 of the inner water jacket from the prepared flat parts.

Windows 6 are inserted on the front wall for servicing and cleaning the boiler.

After assembling the internal water jacket with a flue from the prepared segments, the bottom of the boiler is welded.

On the outer side walls of the inner water jacket, a partition 10 of metal sheets is fixed at a certain equal distance using circles (rods), while the metal partitions form a gap on both sides of the boiler with a bottom height of at least 30 mm.

Then, the body of the outer wall 8 of the outer water jacket 4 of the boiler is made from metal sheets using rollers, giving it a cylindrical shape.

Install the outer jacket of a cylindrical shape of the outer wall 8 on the bottom of the boiler, then connect the shirt and the bottom by welding.

Of the prepared segments 11, the upper part of the boiler is closed from the partition to the outer cylindrical shirt by welding.

The upper part of the boiler is closed from the prepared segment and the ties 23 are evenly installed on the upper cover of the boiler.

Weld the outlet pipe for hot water 24 in the lid of the boiler.

A pump 13 and pressure pipes for supplying hot water 12 are inserted to the pipe, which are introduced into the side tanks of the boiler, formed by metal partitions 10 and the outer wall 8 of the external water jacket of the boiler, while the pressure metal pipes are lowered by at least 2/3 of the height of the partitions 10.

A confuser 22 is connected to the rear wall of the boiler, which is connected to the boiler on the larger side, and to the chimney, with the narrowing angle of at least 15 °.

Thus, the method of manufacturing a hot water boiler allows to simplify the manufacture, achieve high technology and reduce material consumption.

Claims (7)

1. The water boiler contains a firebox, an ash pan framing their body in the form of a water jacket, the inner wall of which is connected to hollow water partitions forming a zigzag gas channel, each of which is connected to the boiler water jacket on three sides, a system for creating a vacuum in the boiler furnace, network water supply at the bottom, hot water outlet at the top, with windows made in the casing, characterized in that the water jacket is internal, and the boiler casing is equipped with an external water jacket with an outer wall in The frame of the cylinder is truncated along the chord from the front side and with the parallelepiped-shaped inner wall, which simultaneously plays the role of the outer wall of the inner water jacket, metal partitions are fixed between the walls of the outer water jacket of the boiler at the same distance from the side walls of the inner water jacket, cut off by partitions, discharge metal pipes for supplying hot water from the hot water pipe with a pump installed on the top cover of the boiler, floor The water partitions are located at the same distance between each other and the inner wall of the inner water jacket, the inner water jacket of the boiler and the hollow water partitions have the same thickness, while in the outer water jacket the distance between the inner wall and the partition is equal to the thickness of the inner water jacket, and the distance between the upper the wall of the internal water jacket and the common boiler cover are at least 2 times larger, the hollow water partitions are made with a horizontal lower wall and with the upper walls Oh, located at an angle of at least 3 ° to the horizontal and have a length that is no less than 3.5 times the distance between the hollow water partition and the inner wall of the boiler’s inner water jacket, the vacuum system in the boiler furnace includes a temperature controller connected to the air by a shutter on the furnace door, the zigzag gas channel of the boiler is connected to the chimney through a confuser, which is attached to the chimney on the back wall and the chimney to the chimney, while the ties are evenly installed on the top cover of the boiler. 2. The boiler according to claim 1, characterized in that the metal partitions form a gap on both sides of the boiler with the bottom of the boiler at least 30 mm high. 3. The hot water boiler according to claim 1, characterized in that the discharge metal pipes for hot water are connected in the center of the outer water jacket enclosed by metal sheets and cut off by a partition. 4. The hot water boiler according to claim 1, characterized in that the discharge metal pipes for supplying hot water are lowered by at least 2/3 of the height of the partition. 5. The boiler according to claim 1, characterized in that the narrowing angle of the confuser is at least 15 °. 6. The boiler according to claim 1, characterized in that the thermostat is connected to the air damper on the furnace door by means of a lever and, for example, a chain. 7. A method of manufacturing a boiler, which consists in the preparation of parts, blocks and then assembling the boiler, characterized in that they prepare flat parts from steel sheets of the estimated thickness for the manufacture of the entire boiler, cut out seats and holes on flat parts, then collect the hollow water partitions, which are the basis for the assembly of the entire boiler, since then all other parts are then attached and rigidly fixed to them until the complete design of the boiler is obtained, the connection of flat parts is carried out by cooking in a horizontal position.

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