Hot water boiler

FIELD: heat-power engineering.

SUBSTANCE: boiler consists of a furnace, convection area with ducts forming a flue, heat-exchanging tube hydraulic system consisting of individual convection and radiation tube sections connected to each other subsequently in water flow direction and opposite to flue gas direction. Connection of heat exchanging tubes in sections and connection of sections to each other is made in the form of loops so that end of one tube in a section is connected with the beginning of the other tube which is adjacent, and the end of one section is connected with the beginning of the other one. Tangential-slot reducing piece made in the form of a rectangular cross-section tube the inlet and outlet ends of which are placed tangentially in walls of two adjacent tubes is used for connecting two adjacent tubes. Bigger size of tangential-slot reducing piece cross section is directed along the tube length. Cross section area of tangential-slot reducing piece channel is equal to cross section area of each tube being connected. Hydraulic system of heat exchanging tubes consists of two independent strings - left one and right one located symmetrically.

EFFECT: improving heat exchange efficiency, reducing fuel consumption, ensuring fail-safety, reliability and long service life of the boiler operating on any fuel type under conditions of water treatment system non-availability.

6 dwg

 

The claimed technical solution relates to the field of engineering, in particular to the so-called small boiler installations, and can be used in various industries and utilities that have the need for thermal energy, for example for heating (hot water) houses, and buildings and structures of social, industrial and agricultural purposes.

Known boilers manufactured by the domestic industry (Biysk boiler plant, JSC Izhevsk boiler plant and other directories).

They are located vertically one-, two-, three-section, is connected in parallel to the water, while in the sections of the heating pipes are also connected in parallel. The movement of gases, usually one, at best two-way with a dividing wall screens. Economizer (development of heat of flue gases) is rare, it is at best a multi beam of parallel-connected tubes, which very quickly become clogged with soot and do not work. The operation of such boilers is characterized by low efficiency, significant cost overruns coal, instability. The service life of such boilers because of the high accident rate (piling and burning pipes) is from one year to three years.

Known hot water boiler (RF patent No. 2241913, the PC 7 F24H 1/12, publ. 10.12.04,), which is partially devoid of the above disadvantages. The boiler contains the furnace and convective part, which is formed by screens made of pipes, and have a common ceiling screen, horizontal inlet and outlet manifolds. Each of the display tube has inlet and outlet of the overflow pipe, the ends of the waterwall tubes of the furnace and convective screens plugged. The pipes are located on opposite sides of a diameter of screen tubes, tangentially to the axis of the display tube.

Disadvantages described hot water boiler consist in the fact that underdeveloped convective part of the heat reclaiming flue gases, a parallel connection of the heating (radiative and convective) pipes does not provide a sufficiently high velocity of the water, there is no rotational movement of the water through the collectors, which can clog, the parallel connection of the pipes does not give an early assessment of the pipes relative to the scale formation.

Also known boiler (RF patent No. 2059937, publ. 18.08.92)containing the combustion chamber, screened pipes, and convection tube bundle, equipped with economizer and torquing device water flow in the bypass pipe connecting the connecting pipe screens, convective beam and economizer and arranged tangentially to ihosy, all pipes of the boiler is made straight.

The disadvantages of boiler consist in the lack of development of convective areas, unidirectional flow of water in pipes, which reduces the efficiency of heat transfer from the flue gases to the water.

The closest to the essential features of the claimed technical solution is the boiler (RF patent No. 2133406, publ. 20.07.99)adopted for the prototype. The device comprises a covering of refractory bricks, furnace, flues, Autonomous convective and residual radiation modules in the form of pipe screens with collectors and drains connected with each other successively in water and the opposite during the combustion gases, two side convective module installed in the surge mines residual radiation screens - ceiling, front and side. Two side convective module in the surge mines made in the form of two coupled four-way screens, and the remaining residual radiation screens are connected to each other through the chain - odnoskatnye: side four-way, two-way front, second side four-way and two-way ceiling. In lowering and lifting the pipe screens coaxially installed swirlers with two sides.

The drawbacks are that when the distribution working agent (water) from the reservoir through the pipes to each pipe the screen becomes the rhythm of the movement of the water, she turbulizers advanced in a longitudinal section plane of the tube at the entrance to her with the formation of the reverse movement of water currents, resulting in retarded in the transitions from the manifold to each of the tubes, loses its longitudinal (along the pipe) speed, and twisting. The increase of water pressure only reinforces these negative effects. All this leads to a decrease in the rate of water movement in General in the hydraulic system heat transfer and, consequently, requires to increase the heat exchange surface to daivat, making, etc. screens. All this complicates the entire heat transfer system further increases the hydraulic resistance, making it cumbersome, contributes to the deposition of salts and impurities from the water, leads to clogging of the system and accidents. With such a complicated system it is impossible to control the resistance of the boiler to continuously evaluate the condition of the internal cavities of the tubes and to take timely measures to avoid an emergency situation. It is impossible to carry out periodic continuous cleaning of the boiler.

Installation turbulizer the swirlers in the form of a helical metal strip in the pipes does not solve the problem of the motion of the working agent with a twist across the path of movement of it, thus reduces the cross-section of the pipe, increasing its resistance complicates to the construction, leads to clogging of pipes accumulating sediments.

Ultimately, adopted for the prototype the design of the boiler discomfiture, does not provide the reliability and stability of its work, uncontrolled.

Objectives of the invention are to improve the heat exchange efficiency by organizing a counter-current movement of fluids - flue gases and water, reducing fuel consumption, ensuring reliability, stability and durability of the hot water boiler on any type of fuel in the absence (or poor performance) systems hydrogen cooking.

These objectives are achieved by the fact that hot water boiler, containing the refractory, furnace, convection compartment made channels forming the duct, the hydraulic system of heat exchange tubes, consisting of separate convective and radiation sections in the form of pipe sections with vozdushnymi and drainage are connected to each other sequentially in water and the opposite during the combustion gases, including top, front, inner, outer, and rear sections, according to the invention the connection of the heat transfer pipe sections and the sections are made hook-shaped, so that the end of one pipe section is connected with the beginning of another adjacent pipes and the end of one section is connected with the beginning of another section, and to connect the of two adjacent pipe between them is tangentially-slot adapter.

These objectives are achieved by the fact that tangentially-slot adapter is made in the form of a tube with a rectangular cross-section, the input and output ends of which are embedded tangentially to the walls of two adjacent pipes, while the larger section tangentially-slot adapter is directed along the generatrix along the length of the pipe.

These objectives are achieved by the fact that the cross-sectional area of the channel tangentially-slot adapter is an isometric cross-sectional area of each of the connected pipes.

These objectives are achieved by the fact that the hydraulic system of heat exchange tubes consists of two independent branches - the left and right, which are symmetrical.

The claimed technical solution is illustrated by drawings, where figure 1 shows a longitudinal section of the boiler; figure 2 is a section along AA of figure 1; figure 3 is a section along BB in figure 1; figure 4 is a diagram of the interaction flow of fluids - water and flue gases; figure 5 is a transverse section of the tangentially-slot transition between the pipe; 6 - tangentially-slot transition between pipes in a perspective view.

Declare boiler consists of masonry-1, separated by a wall 2 of refractory material in the furnace compartment (the furnace) 3 and convective compartment 4 (Fig 1, 2, 3). The furnace compartment 3 contains the grate 5, on which is placed a solid fuel 6, and the front opening 7 to provide access of air oxygen necessary for combustion (figure 1, 2). In convective compartment 4 by means of partitions 8 of refractory material placed in a checkerboard pattern, formed by the duct 9, the channels which are interconnected and furnace 3. The duct 9 has an opening 10 to exit flue gas and is equipped with Windows 11 for removal of soot and ash. Box 11 provides the ability to remove soot without shutting down the boiler. Arrow 12 shows the movement of the flue gases obtained from the combustion of solid fuel in the duct 9 to the opening 10 (Fig 1, 3).

Arrows 13 shows the movement of the air stream carrying the required combustion quantity of oxygen.

The main component of the boiler, which provides heat exchange between the flue gases and water, is the hydraulic system of pipes, one for the furnace compartment 3 and convective compartment 4 of the boiler.

Hydraulic pipe system consists of two independent branches - the left a and right b (1, 2), located on the mirror. While each branch has an independent entrance 14a and 14b of cold water (or return line) and outputs 15A and 15B of hot water with the appropriate shutoff valves (1, 2).

Hydraulic pipe system is equipped with drainage of the wash pipe 16 and pipe air release (required) 17 (2, 3).

Each branch hydraulic the pipe system consists of separate sections (pipe screens) 18-22, sequentially interconnected and arranged in such a way as to provide a counterflow between the directions of motion of the flue gas and water (figure 4). Some sections of both branches installed in the combustion zone (at the end of the water), are radioactive, they perceive mainly radiant energy. These include: ceiling sections 22A, 22b (figure 4), the back radiation 21A, 21B (figure 4), the inner sections 20A, 20B (2, 4). The other sections along the flue gas perceive heat by convection. This external sections 19a, 19b (figure 4) and rear sections 18a, 18b (Fig 1, 2, 3, 4).

Each section consists of interconnected horizontal pipe that provides cross-thread communication for the individual pipe sections and protivotochnoi - sections and boiler as a whole.

The connection of two adjacent pipe sections is provided with tangentially-slot adapter 23 (Fig 3, 5, 6), which allows you to create rotational motion of water at each transition. Figure 5, figure 6 shows two adjacent tubes 24 in the partition, United tangentially-slot adapter 23.

Tangentially-slot adapter 23 is made in the form of a tube with a rectangular (slit) cross-section, the input and output ends of which are embedded tangentially to the walls of two adjacent tubes 24. This larger cross-section tangentially-slot adapter 23 nab is Allen the generatrix of the pipe 24, and the area of its cross section equal to the cross-sectional area of the pipe 24.

Boiler works as follows.

Solid fuel 6 burn on the grate 5 in the furnace compartment 3 of the boiler under the action of air flow, shown by arrows 13 to deliver the necessary amount of oxygen in the combustion zone (figure 1). The resultant combustion flue gases in the chimney 9 of the furnace compartment 3 are sent in convective compartment 4, first at her side compartments (figure 3), the arrow 12, and then in the labyrinth formed by the partitions 8, made of refractory material, and further to the opening 10 to exit flue gas.

Towards the flow of flue gases simultaneously in two branches (a and b) hydraulic system pipes organize the flow of heating (mains) water (figure 1) is consistent across all the partitions to the outputs from the hot water 15.

Hot water boiler has been tested in boiler room No. 1 of the village of new Kemerovo region during the heating season 2005-2006

The use of the claimed boiler allows to obtain the following effect:

- to ensure the orderly movement of the working agent (water) in the whole system of heat exchange tubes with a constantly renewed turbulence of water at each transition from a pipe in the pipe;

to increase the speed of the movement is of the water in the pipes, and given the countercurrent movement of fluids - heat (flue gases from combustion of the fuel) and heated (water) - to increase heat removal (heat transfer) by reducing the temperature of flue gases. Remove (passed) heat, as is well known, is determined by the formula

Q=Δt·G

where Q is removed (passed) heat;

Δt - temperature gradient - the difference between the temperature of the heating and heated fluids, constant throughout the tract of interaction flows;

G is the mass of the heat carrier (water);

all the above allows to increase the efficiency of the boiler with the same amount of surface heat transfer (heating);

- organization of renewable rotational motion when the flow of the working agent (water) from one pipe to another (adjacent), without changing the direction of rotation, allows to provide mixing of the water layers with a characteristic movement of colder layers from the center to the walls, and heated, on the contrary - from the walls to the center;

- providing rotational motion of the water in the pipes can reduce (or completely eliminate) deposits on the pipe walls, which is of particular value to the proposed technical solution in terms of ensuring stable operation of the boiler, improve efficiency and increase service life without water;

p> - the claimed technical solution makes it possible to control the internal hydraulic resistance of the boiler, which allows you to continuously evaluate the condition of the internal cavities of the tubes during operation and to take timely measures, excluding emergency situation;

- to provide opportunity for timely continuous cleaning of the boiler from carbon and dust deposits.

The proposed solution improves the efficiency of the heat transfer process, reduce fuel consumption, to ensure the reliability, stability and durability of the hot water boiler on any type of fuel in the absence (or poor performance) water-treatment systems.

Boiler containing a refractory, furnace, convection compartment made channels forming the duct, the hydraulic system of heat exchange tubes, consisting of separate convective and radiation sections in the form of pipe sections with vozdushnymi and drainage are connected to each other sequentially in water and the opposite during the combustion gases, while the sections are, including top, front and rear sections, wherein the connection of the heat transfer pipe sections and the sections are made the loop so that the end of one pipe section is connected with the beginning of another, minoi, pipe and the end of one section is connected with the beginning of another section, and for the connection of two adjacent pipes between them is tangentially-slot adapter, however tangentially-slot adapter is made in the form of a tube with a rectangular cross-section, the input and output ends of which are embedded tangentially to the walls of two adjacent pipes, while the larger section tangentially-slot adapter is directed along the generatrix along the length of the pipe, and the cross-sectional area of the channel tangentially-slot adapter is an isometric cross-sectional area of each of the connected pipes, and hydraulic system of heat exchange tubes consists of two independent branches - the left and right located symmetrically.



 

Same patents:

Boiler // 2310123

FIELD: heat and power engineering, possible use for heating water.

SUBSTANCE: boiler contains boiling layer furnace, moving fire bar flat part with blowing zones positioned below it, rotary screen, side screens, scalloped screen, convective block. On side screen, accelerating duct is mounted, inside which mobile plate is installed, and in its lower part pneumatic casting is built in. In frontal part of lower branch of mobile fire bar flat part, frontal thickened part is installed. In back part of upper branch of mobile fire bar flat part, back thickened part is installed. Rotary screen is made of pipes with metallic plates, attached to pipes along whole length. Between scalloped screen and convective block, in its lower part, water-cooled beam is installed, back part of boiler is connected to direct-flow cyclone. Boiler contains a recirculation system, which is made in form of a pipeline and positioned between smoke exhauster and air duct.

EFFECT: increased efficiency of boiler, reduced atmosphere pollution, improved labor conditions, reduced economic costs of boiler operation, increased reliability of boiler operation.

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FIELD: equipment for heating water and producing steam, possibly in heat supply and (or) hot water supply systems.

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EFFECT: simplified design, improved functional possibilities and efficiency of boiler.

FIELD: water heating, applicable in heat power engineering.

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EFFECT: enhanced maintainability of the boilers.

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Hot-water boiler // 2287116

FIELD: water heating, applicable in heat power engineering.

SUBSTANCE: the boiler gas a brick-lined body installed on a foundation, heat-exchanging blocks consisting of heat-exchanging sections are located in the body, the heat-exchanging sections are located in the body, the heat-exchanging tubes of each section are connected to headers, as well as a distributing header with an inlet pipe connection and a built-in header with an outlet pipe connection. Two heat-exchanging units are installed in the body, each of them has at least two heat-exchanging sections, the headers of the unit sections are parallel with each other and with the plane of the foundation, the heat-exchanging sections of each heat-exchanging unit are inclined at an acute angle to the plane of the foundation, and the upper headers of the units are drawn together, one of the lower headers of each unit is connected to the distributing header, and one of the upper headers of each unit - to the built-in header. The upper and lower headers of the adjacent sections of each unit, except for those connected to the distributing and outlet headers, are connected to each other at least by one by pass tube.

EFFECT: enhanced heating capacity and efficiency of the boiler.

2 dwg

FIELD: water heating equipment, particularly heat-and-power engineering.

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FIELD: water boiling; boiler plants.

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EFFECT: improved efficiency of heat exchange; improved manufacturability.

10 cl, 2 dwg

FIELD: the invention is intended for heating liquids, gases and their mixtures and may be used in various sectors of industry.

SUBSTANCE: the heater has a burner, a vertically installed house-tube heat exchanger shielded at least with two belts of bayonet chimneys with ring-shaped gaps and interior tubes which are connected via replacement sockets with collectors of output and input of environment. They are installed in the lower part of the heater. A generator is installed in the ring-shaped gap. Directly beyond the ring supporting bayonet chimneys and limiting the combustion zone with a partition a cowl is installed. It is fulfilled in the shape of a hollow cylinder coaxial with the casing of the heat exchanger and the chimney and placed in the paraxial part of the heater unengaged with tubes. The nose of cone of the cowl is inverted to the side of the burner so that ring-shaped area between the cowl and the casing full of tubes develops a cavity of convective section. At that before entering into the chimney the indicated section ends with openings which are located on equal distances to diameter of the cowl and oriented against spaces between bayonet chimneys of interior belt of matrix of the heat exchanger.

EFFECT: provides increasing performance reliability and effectiveness of the heater.

1 dwg

Water-heating tank // 2252368

FIELD: water heating technologies.

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EFFECT: higher efficiency.

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Water-heating tank // 2252367

FIELD: power engineering.

SUBSTANCE: device has furnace, after-burn hollow, screen and convection bunches of water-heating pipes. Water cylindrical space between sides of furnace is separated by two diametrically opposite walls on two separated semi-cylindrical water hollows. Special piece is connected to lower bottom of furnace in axial-symmetrical way and made in form truncated cone. Burners are mounted tangentially at side surface of furnace close to its upper bottom with direction of axes of burners touching the circle, diameter of which is twice lesser than inner diameter of furnace. Water hollow of after-burn chamber is connected to semi-cylindrical water hollow adjacent to it from lower portion. Furnace through outlet port placed on its side surface in lower portion is connected to after-burn chamber, connected to convective gas line. Convective gas line is formed on inner side of outer cylindrical side of furnace, and on outer sides - by bottoms of respectively upper and lower ring-shaped water collectors and outer semi-side of gas line, mounted in high-temperature zone of gas line close to after-burn chamber outside with additional water hollow, connected to water hollow of after-burn chamber and limited by its bottoms and outer wall. Inside the convective gas line rows of vertical water-heating convective pipes are mounted, connected to upper and lower ring-shaped water collectors. Flow branch-pipe connects inlet of heated water in lower ring-shaped water collector to output of it from semi-cylindrical water hollow.

EFFECT: higher reliability.

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Hot-water boiler // 2249772

FIELD: heating services and hot-water supply systems.

SUBSTANCE: the invention is intended for heat of water and may be used in heating services and hot-water supply systems. The boiler contains a placed in its body furnace with the front, rear and lateral screens made out of pipes with fins, and also the upper screen made out of pipes and mounted between the lateral screens and the body intermediate screens, pipes of which are located with a displacement in respect to the pipes of the corresponding lateral screens and are supplied with two fins with formation of the convective gas flues. The odd pipes of the upper screens are linked to each other by fins forming a curvilinear surface with its salient, facing the body and the fins bending round the even pipes from above. The fins connecting adjacent pipes of the front and rear screens and also the additional fins connecting the adjacent pipes of the intermediate screens are made in the form of a curvilinear surface with its camber facing the boiler body. The fins of the pipes of the front and rear screens and also the additional fins of the pipes of intermediate screens are made gas-tight self-compensated and are placed in respect to the lateral surface of the body with formation of an air jacket, in which the air fed for burning is heated. The invention ensures increase of an efficiency of the boiler and simplification of its design.

EFFECT: the invention ensures increased efficiency of the boiler and simplification of its design.

4 cl, 6 dwg

FIELD: applicable for water heating and can be used for heat supply and hot water supply.

SUBSTANCE: the boiler has a convective unit and a fire box consisting of horizontal headers and multi-pass panels of pipes with lifting and lowering motion of water and a vertical panel of pipes with lifting motion of water. The tubular part of the fire box is made of two parts symmetrical relative to the vertical plane of the boiler, each panel has two pipes with lowering motion of water, and part of the pipes with lifting motion of water of the multi-pass panels is brought out to the inner cavity of the fire box and form a single- or multi-row additional water wall. The convective unit is installed in the inner cavity of the tubular part of the fire box on the side opposite the burner.

EFFECT: enhanced operating reliability and durability, maintainability and adaptability to boiler mounting.

2 cl, 4 dwg

Hot-water boiler // 2249772

FIELD: heating services and hot-water supply systems.

SUBSTANCE: the invention is intended for heat of water and may be used in heating services and hot-water supply systems. The boiler contains a placed in its body furnace with the front, rear and lateral screens made out of pipes with fins, and also the upper screen made out of pipes and mounted between the lateral screens and the body intermediate screens, pipes of which are located with a displacement in respect to the pipes of the corresponding lateral screens and are supplied with two fins with formation of the convective gas flues. The odd pipes of the upper screens are linked to each other by fins forming a curvilinear surface with its salient, facing the body and the fins bending round the even pipes from above. The fins connecting adjacent pipes of the front and rear screens and also the additional fins connecting the adjacent pipes of the intermediate screens are made in the form of a curvilinear surface with its camber facing the boiler body. The fins of the pipes of the front and rear screens and also the additional fins of the pipes of intermediate screens are made gas-tight self-compensated and are placed in respect to the lateral surface of the body with formation of an air jacket, in which the air fed for burning is heated. The invention ensures increase of an efficiency of the boiler and simplification of its design.

EFFECT: the invention ensures increased efficiency of the boiler and simplification of its design.

4 cl, 6 dwg

Water-heating tank // 2252367

FIELD: power engineering.

SUBSTANCE: device has furnace, after-burn hollow, screen and convection bunches of water-heating pipes. Water cylindrical space between sides of furnace is separated by two diametrically opposite walls on two separated semi-cylindrical water hollows. Special piece is connected to lower bottom of furnace in axial-symmetrical way and made in form truncated cone. Burners are mounted tangentially at side surface of furnace close to its upper bottom with direction of axes of burners touching the circle, diameter of which is twice lesser than inner diameter of furnace. Water hollow of after-burn chamber is connected to semi-cylindrical water hollow adjacent to it from lower portion. Furnace through outlet port placed on its side surface in lower portion is connected to after-burn chamber, connected to convective gas line. Convective gas line is formed on inner side of outer cylindrical side of furnace, and on outer sides - by bottoms of respectively upper and lower ring-shaped water collectors and outer semi-side of gas line, mounted in high-temperature zone of gas line close to after-burn chamber outside with additional water hollow, connected to water hollow of after-burn chamber and limited by its bottoms and outer wall. Inside the convective gas line rows of vertical water-heating convective pipes are mounted, connected to upper and lower ring-shaped water collectors. Flow branch-pipe connects inlet of heated water in lower ring-shaped water collector to output of it from semi-cylindrical water hollow.

EFFECT: higher reliability.

2 cl, 3 dwg

Water-heating tank // 2252368

FIELD: water heating technologies.

SUBSTANCE: device has furnace chamber, screened by pipes, convective pipe batch, economizer and device for twisting water flow in form of flow tangential pipes, connecting adjacent pipes of screens, convective batch and economizer. Flow pipe is made in form of trapezoid-like box, provided with means for deflecting water flow towards larger base of box, rigidly connected to lesser base, connecting adjacent pipes along their common axis.

EFFECT: higher efficiency.

3 cl, 3 dwg

FIELD: the invention is intended for heating liquids, gases and their mixtures and may be used in various sectors of industry.

SUBSTANCE: the heater has a burner, a vertically installed house-tube heat exchanger shielded at least with two belts of bayonet chimneys with ring-shaped gaps and interior tubes which are connected via replacement sockets with collectors of output and input of environment. They are installed in the lower part of the heater. A generator is installed in the ring-shaped gap. Directly beyond the ring supporting bayonet chimneys and limiting the combustion zone with a partition a cowl is installed. It is fulfilled in the shape of a hollow cylinder coaxial with the casing of the heat exchanger and the chimney and placed in the paraxial part of the heater unengaged with tubes. The nose of cone of the cowl is inverted to the side of the burner so that ring-shaped area between the cowl and the casing full of tubes develops a cavity of convective section. At that before entering into the chimney the indicated section ends with openings which are located on equal distances to diameter of the cowl and oriented against spaces between bayonet chimneys of interior belt of matrix of the heat exchanger.

EFFECT: provides increasing performance reliability and effectiveness of the heater.

1 dwg

FIELD: water boiling; boiler plants.

SUBSTANCE: water boiler has fire-chamber and convectional chamber which are both formed by screens made of pipes connected together by by-passing jet, disposed tangentially to axes of screen pipes. Convectional part is mounted above fire part. Screens of fire chamber are made of pipes disposed in vertical. Screens of convectional part are made of pipes disposed horizontally. Bypassing jets, which connect ends of pipes to follow staggered order, are parallel to plane of screen. One side of jets is disposed at angle to plane of screen, the other part is disposed tangentially to surfaces of pipes and in parallel to plane of screen. Method of making water boiler is based upon mounting of case of the boiler, preparing of short and long pipes, cutting windows at the ends of short pipes for connecting bypassing jets, mounting of bypassing units from short pipes, bypassing jets and bases, mounting of screens by means of welding of long pipes and bypassing units and mounting fife chamber and convectional chamber of boiler's screens.

EFFECT: improved efficiency of heat exchange; improved manufacturability.

10 cl, 2 dwg

FIELD: water heating equipment, particularly heat-and-power engineering.

SUBSTANCE: water heating boiler comprises furnace with side screens made of pipes, lower and upper screens made of pipes, as well as lower and upper horizontal manifolds. Each side screen includes primary and secondary screens. Lower manifold is composed of two lower pipelines having rear ends connected with each other by the first connection pipe. Upper manifold is composed of two upper pipelines having front ends connected with each other by the second connection pipe. The primary side screen is made as a number of straight pipes, which connect each pair of lower and upper pipelines arranged along boiler side. The secondary screen is made as a number of curved pipes installed from the primary screen outside and connecting each pair of lower and upper pipes extending along boiler side. Diameter ratio between secondary screen pipes, primary screen pipes, lower manifold pipes and upper manifold pipes is 1:(2.1÷2.5):(4.7÷5.2):(6.6÷7.0).

EFFECT: reduced metal consumption, increased economy and reliability.

14 cl, 1 dwg

Hot-water boiler // 2287116

FIELD: water heating, applicable in heat power engineering.

SUBSTANCE: the boiler gas a brick-lined body installed on a foundation, heat-exchanging blocks consisting of heat-exchanging sections are located in the body, the heat-exchanging sections are located in the body, the heat-exchanging tubes of each section are connected to headers, as well as a distributing header with an inlet pipe connection and a built-in header with an outlet pipe connection. Two heat-exchanging units are installed in the body, each of them has at least two heat-exchanging sections, the headers of the unit sections are parallel with each other and with the plane of the foundation, the heat-exchanging sections of each heat-exchanging unit are inclined at an acute angle to the plane of the foundation, and the upper headers of the units are drawn together, one of the lower headers of each unit is connected to the distributing header, and one of the upper headers of each unit - to the built-in header. The upper and lower headers of the adjacent sections of each unit, except for those connected to the distributing and outlet headers, are connected to each other at least by one by pass tube.

EFFECT: enhanced heating capacity and efficiency of the boiler.

2 dwg

FIELD: water heating, applicable in heat power engineering.

SUBSTANCE: the boiler has a rigid framework with water walls and stacks of the convective section fastened in it, the convective section is located at the side of the furnace. The water walls and the stacks are installed from the front part of the boiler in the lower and upper guides fastened in the framework and are interconnected by tubular transitions on the flanges in the front part of the boiler and by two welded tubular transitions in the rear part of the boiler, due to it dismantling of the heating surfaces is possible for repair and replacement.

EFFECT: enhanced maintainability of the boilers.

4 dwg

FIELD: equipment for heating water and producing steam, possibly in heat supply and (or) hot water supply systems.

SUBSTANCE: boiler includes shaft type burner restricted by front, back, lateral, hearth and crown tube shields whose tubes provide joining of lower and upper manifolds. Tubes of hearth tube shield pass to lateral and further to crown tube shield having C-shaped configuration in cut-away view. In central part of burner coil tube steam generator with two rows of windows is arranged. Lower and upper manifolds are horizontal, they have the same configuration and in plan view they have H-beam configuration of cross section. Coil tube steam generator with two rows of windows has outlet comb formed of branch pipes for discharging steam to users. One of said branch pipe is communicated through pipeline with outlet branch pipe of boiler for supplying hot water to user.

EFFECT: simplified design, improved functional possibilities and efficiency of boiler.

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