RU27188U1 - STEAM BOILER - Google Patents

Abstract

1. Steam boiler, comprising a housing with pipe boards, a combustion chamber with a steam generating device, a drainage device in the form of a bypass pipe, an outer shell, a gas outlet, characterized in that the housing is formed by connecting through anchor rods and straight heat-transfer smoke tubes, tube boards of the housing and represents a thermally insulated horizontally located cylinder, the front end surface of which is made with a hatch forming a pivoting chamber with a front tube plate casing, and a nest under the burner associated with a thin chamber made in the form of a horizontally arranged cylindrical heat pipe with an end face made in the form of a flat tube board of a combustion chamber equipped with an explosive valve, the steam generating device is made in the form of a convective gas duct formed by the said straight-line heat exchangers smoke tubes, grouped in radially spaced beams hermetically connected, respectively, with the front and rear tube plates of the housing, and the bottom tube plate of the combustion chamber is connected through anchor rods to the rear tube of the casing, while the smoke cavity formed by the rear tube and the back of the casing is connected by a straight heat-exchange smoke extinguishing corpse to the said rotary cavity, by means of a gas outlet connected to the chimney of the boiler installation, the drainage device is located below on the outer shell, which additionally contains: a water supply pipe, a steam pipe, a pipe for

Description

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The proposed utility model relates to a power system and heat engineering and can be used in boilers for a heating system.

Known steam boiler (see application for invention No. 98101145, IPC 7 F22B 29/00, published 20.11.99), containing boiling drums and steam, with hollow collectors for water circulation, to increase the area of heat transfer, it is made of pairs of gutters forming a hexagon of different sections, the sides of the grooves 60 ° form angles with different sides, the hexagonal sections of the grooves of larger and smaller sections are connected vertically in a zigzag shape, forming a two-cavity, zigzag-shaped coil-furnace with a gas duct, and a water jacket with a body made of gutters or sections c the cylinders without chimneys.

Also known as an autonomous steam-water boiler, (see application for invention No. 98106061, IPC 7 F22B 11/00, publ. 12/20/99), consisting of a steam-water cavity with a built-in combustion chamber in the form of an open torus cavity passing into a chimney, on which an expansion tank is located at a height of H, equal in volume to the boiler’s steam capacity, ending at the top with a stabilizing cavity in the form of an annular network, height h h, characterized in that the bottom of the steam-water cavity is connected to the expansion tank through a feed pipe acting as a hydros create, and the top of the cavity has a stabilizing offset adjustment holes in the cavity of the chimney.

IPC 7 F22B 23/00

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STEAM BOILER A disadvantage of the known boiler is its high complexity

manufacturing and installation, insufficient heat transfer, reliability and performance.

This disadvantage is due to the design features of the well-known autonomous steam boiler.

Also known is the steam boiler adopted for the prototype (see application for invention No. 97103705, IPC 7 F22B 23/00, publ. March 27, 1999) containing a steam-water drum with a tube plate and a steam generating device containing coaxial internal lowering and external lifting steam generating pipes communicated with the inner cavity of the drum, a gas duct with steam-generating pipes and a gas outlet placed therein and a device for dumping slurry, characterized in that the steam-water drum is made with a tube plate and an upper generatrix in a flat design; devices for dumping slurry are made in the form of cylindrical sludge-collecting chambers communicated with their lower part with a common bypass pipe; fittings for fastening steam-generating pipes protruding from both its sides and having support projections of equal height evenly distributed around their circumference along their upper protruding ends are built into the tube plate of the drum; the upper generatrix of the drum from the inside is equipped with bushings in which the upper ends of the inner pipes are installed, having through holes above the level of the fittings, which are placed in the cavity of the enclosing sleeve made in the form of a cylindrical glass. the bottom of which has a central hole under the inner pipe and

paired with protrusions of the stopper; through holes are located at the lower end of the inner pipe and near the end there is a threaded section for securing the pipe; each outer pipe is connected with the lower end of the fitting with the lower end and the surface of the sludge collection chamber, and the sludge collection chamber on the surface has a section under the threaded section of the inner pipe: the axis of the gas outlet pipe coincides with the axial line of the gas duct, and the inner space of the gas duct is equipped with vertical partitions installed with a stepwise reduction in the cross-sectional area of the gas duct along the gas stream, the steam-water drum has a toroidal shape, and its gas duct is formed by walls two coaxial cylinders and coaxially placed below the steam-water drum, a stepwise reduction in the cross-sectional area of the gas duct is made in a ratio of 3 to 1 inlet of the gas flow to the exit of the tube bundle when the boiler is running on liquid fuel, a stepwise reduction in the cross-sectional area of the gas duct is made in the ratio of 2 to 1 when the boiler operates on the exhaust gases of an internal combustion engine.

A disadvantage of the known steam boiler is their low reliability and performance, manufacturing complexity, high cost and energy consumption.

These disadvantages are due to the design features of the well-known steam boiler. The technical result provided by the proposed useful

model “Steam boiler consists in simplifying the design, increasing heat transfer, reliability and performance.

This result is achieved by the fact that in a known steam boiler, comprising a housing with tube boards, a combustion chamber with a steam generating device, a drainage device in the form of a bypass pipe, an outer shell, a gas outlet, according to a utility model, that the housing is formed by connecting by means of anchor rods and rectilinear heat transfer smoke tubes, tube plates of the housing and is a thermally insulated horizontally located cylinder, the front end surface of which is made a hatch forming a rotary chamber with a front tube plate of the casing and a socket under the burner connected to the combustion chamber made in the form of a horizontally arranged cylindrical heat pipe with an end face made in the form of a flat tube plate of the combustion chamber equipped with an explosive valve, the steam generating device is made in in the form of a convective duct formed by the said straight-line heat-exchanging smoke tubes, grouped into radially spaced bundles1: and hermetically connected It is connected with the front and rear tube plates of the casing, the rear tube plate of the combustion chamber being connected via anchor rods to the rear tube plate of the casing, while the smoke tube formed by the rear tube plate and the back casing

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4 CAVITY, connected by means of rectilinear heat-transfer smoke

pipes with the said rotary cavity, through a gas outlet pipe connected to the chimney of the boiler installation, the drainage device is located below on the outer shell, which additionally contains: water supply pipe, steam pipe, pipe for venting, pipes with safety valves, level gauge with sensors - level switch and transmitting transducer, measuring tube, direct level indicators, separator, measuring tube equipped with pressure gauges and thermometers, housing it is covered with a decorative panel, the steam pipe branch is made with a shut-off flange valve, mineral wool mats are used as thermal insulation

Between the distinguishing features and the achieved technical result, there is the following causal relationship.

In contrast to the known analogues and prototype, the implementation of the combustion chamber is in the form of a horizontally arranged cylindrical heat pipe with an end face made in the form of a flat tube board of the combustion chamber, and the steam generating device is in the form of a convective gas duct formed by the said straight-line heat-exchange smoke tubes grouped in radially located beams hermetically connected respectively with the front and rear tube plates of the housing equipped with an explosive valve, simplifies the design and simultaneously increases the heat transfer, since the hot gases in the chamber

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rotate 180 degrees and then warming in it, they enter the rotary chamber, and then into the convective gas duct in the form of heat-exchange smoke tubes grouped into radially arranged bundles, practically without losing the temperature, which they then give to water and steam. This design is more reliable since the hot gas is located in a combustion chamber equipped with an explosive valve. The steam boiler due to the presence of a separator and drainage pipe allows you to receive and use not only steam, but also hot water, which increases its performance.

According to the information available to the applicant, the set of essential features of the claimed utility model is not known from the prior art, which allows us to conclude that the claimed object meets the novelty criterion.

The set of essential features characterizing the essence of the utility model can be repeatedly used in the production of various modifications of steam boilers to obtain a technical result consisting in increasing heat transfer, reliability, performance, which allows us to conclude that the claimed object meets the criterion of "industrial applicability.

The essence of the utility model is illustrated by structural diagrams, where: in FIG. 1 shows a general view of a steam boiler; figure 2 is the same, in section aa.

In Fig.Z - the appearance of the steam boiler, closed with decorative panels;

The boiler consists of a cylindrical body 1, which includes a combustion chamber 2, front 3 and rear 4 pipe boards, convective gas duct 5 and the outer shell 6. The combustion chamber 2 is made in the form of a horizontally arranged cylindrical flame tube 7 with an end face, made in in the form of a flat tube board 8. The combustion chamber 2 is hermetically connected to the socket 9 of the burner (not shown in the drawing). The tube plate 8 of the combustion chamber is connected to the rear tube plate 4 of the housing 1 by anchor rods 10 in such a way that the tube tube 8 of the combustion chamber and the rear tube plate 4 form a plastic system that compensates for the temperature extensions of the flame tube 7. The tube plates 3 and 4, and tube board 8, flame tube 7, made of sheet steel. The convective gas duct 5 of the steam boiler is formed by smoke tubes 11 made of seamless pipes grouped into radially arranged bundles 12, hermetically connected by welding, respectively, to the front and rear tube plates 3 and 4 of the housing. On the outer shell 6 made of sheet steel, there are: a supply pipe 13 for water and a steam pipe 14 with a shut-off flange valve 15, a pipe for venting 16 with a shut-off flange valve 17, two pipes with safety valves 18, a level gauge 19 s level 20 sensors and transmitting transmitter (not shown), tube

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gauge 21 with manometers and a thermometer installed on it, two direct-acting level gauges 22, a separator 23, drain pipe 24. The steam boiler body 1 is closed with decorative panels 25. The front hatch 26 is walled inside with a refractory composition that can withstand high temperatures and forms with the front pipe board 3 rotary chamber 27. The steam boiler is equipped with an explosive valve 28, immured from the inside, equipped with a sight pipe 29 Pad smoke explosion 30 is a smoke cavity 30 with a gas outlet pipe, connected to the chimney of a boiler plant (not shown). Anchor rods 31 connect the tube plates 3 and 4 of the housing 1, as well as the straight heat exchange tubes 11. Mineral wool mats 32 are used as thermal insulation of the steam boiler, allowing them to withstand temperatures up to 450 ° C.

The operation of the steam boiler is as follows.

The torch torch is located horizontally in the center of the furnace. The flue gases, reaching the end bottom of the combustion chamber, swirl, rotate 180 ° and fall into the rotary chamber located between the front end surface with the hatch and the front tube plate, where they again swirl, rotate 180 and enter straight smoke tubes, after which fall into the smoke cavity, and then into the gas outlet connected to the chimney of the boiler installation (not shown) to remove flue gases from the steam boiler. Water is supplied to the steam boiler through a feed pipe mounted on the shell; it enters the hot heat pipe and convective pipes

gas duct, where it reaches a boiling point and is formed into steam, which passes through a separator to separate large and then small drops of water from the steam that enters through the pipe branch to the consumer.

The application of the proposed utility model "Steam boiler with a relatively simple design will increase heat transfer, reliability and performance.

Claims (5)

1. Steam boiler, comprising a housing with tube boards, a combustion chamber with a steam generating device, a drainage device in the form of a bypass pipe, an outer shell, a gas outlet, characterized in that the housing is formed by connecting through anchor rods and straight heat-exchange smoke tubes, tube tubes of the housing and represents a thermally insulated horizontally located cylinder, the front end surface of which is made with a hatch forming a pivoting chamber with a front tube plate casing, and a nest under the burner associated with a thin chamber made in the form of a horizontally arranged cylindrical heat pipe with an end face made in the form of a flat tube board of a combustion chamber equipped with an explosive valve, the steam generating device is made in the form of a convective gas duct formed by the said straight-line heat exchangers smoke tubes, grouped in radially spaced beams hermetically connected, respectively, with the front and rear tube plates of the housing, and the bottom tube plate of the combustion chamber, connected via anchor rods to the rear tube of the casing, the smoke cavity formed by the rear tube and the back of the casing, is connected via a straight heat-exchange smoke extinguishing corpse to the said rotary cavity, by means of a gas outlet connected to the chimney of the boiler installation, the drainage device is located below on the outer shell, which additionally contains: a water supply pipe, a steam pipe, a pipe for venting, tubes with safety valves, level sensors, level switch and the transmitting transducer measuring tube pointers level direct-acting separator.  2. The steam boiler according to claim 1, characterized in that the measuring tube is equipped with manometers and thermometers.  3. Steam boiler according to claim 1, characterized in that the housing is closed with a decorative panel.  4. The steam boiler according to claim 3, characterized in that the steam pipe is made with a shut-off flange valve. 5. Steam boiler according to claim 1, characterized in that mineral wool mats are used as thermal insulation.