CN213542426U

CN213542426U - Vestibule type steam generator

Info

Publication number: CN213542426U
Application number: CN202021442016.5U
Authority: CN
Inventors: 裘梁; 张芊; 张桂忠; 于漫漫; 王立勇; 吴知军
Original assignee: Ningde Funing Boiler Co ltd
Current assignee: Ningde Funing Boiler Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-06-25
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a corridor formula steam generator, including the combustor, still include the urceolus that sets up and combustor one side, including the urceolus, be equipped with furnace in the urceolus, urceolus inner wall circumference evenly is provided with many water-cooling wall pipes, and the urceolus top is provided with the drum, and urceolus outer wall bottom is provided with down the collection box, and water-cooling wall pipe both ends are the vertical direct connection respectively and are led to down collection box and drum; the top of the hearth in the combustion area is horizontally provided with a smoke baffle, a smoke channel is formed between one side of the smoke baffle, which is far away from the combustor, and the inner wall of one side of the outer barrel, which is far away from the combustor, the top of the outer barrel is provided with a smoke outlet for discharging smoke, the top of the outer barrel is provided with a steam pipe, the steam pipe is provided with a main cold valve, and the smoke can not be directly discharged upwards from the smoke outlet by arranging the smoke hot baffle above the combustion area, so that the stroke of the smoke in the hearth can be prolonged, and the heat absorption; the water wall pipe is uniformly arranged along the inner wall of the outer cylinder, so that the heating surface is effectively increased, the formation of water vapor is accelerated, and the radiation heat transfer is enhanced.

Description

Vestibule type steam generator

Technical Field

The utility model relates to a steam generator specifically is a vestibule formula steam generator.

Background

The steam generator is a mechanical device which utilizes the heat energy of fuel or other energy sources to heat water into hot water or steam, and the biomass fuel steam generator takes agricultural and forestry waste as raw materials, so that the problem of air pollution caused by burning of straw and other waste in the agricultural production process is solved; replaces non-renewable resources to provide power for industry and life, and reduces the loss of the non-renewable resources.

The existing biomass fuel steam generator is not sufficient in utilization of biomass fuel, only utilizes heat generated during combustion of the biomass fuel, does not utilize heat of flue gas generated during combustion, and has a great deal of waste in the using process. On one hand, a large amount of heat carried by flue gas generated in the combustion process of the biomass fuel is not utilized; on the other hand, when the biomass fuel is burnt, the heat in the furnace chamber is dissipated too fast, the energy utilization rate is low, and the resource waste is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste heat recovery device to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a corridor type steam generator comprises a burner, wherein a hopper is arranged in the burner, a hot air port is arranged at the lower part of the hopper, a steam generator is arranged at one side of the burner and comprises an outer barrel, a hearth is arranged in the outer barrel, the hot air port is communicated with the hearth, an air blower and a smoke pipe connected with the air blower are arranged above the burner, the smoke pipe is connected with the other end of the air blower and is connected with the burner, and the bottom of the burner is communicated with the hearth through the hot air port; a plurality of water wall tubes are uniformly arranged on the inner wall of the outer barrel in the circumferential direction, a boiler barrel is arranged at the top of the hearth of the outer barrel, a lower header is arranged at the bottom of the outer wall of the outer barrel, and two ends of each water wall tube are respectively vertically communicated with the lower header and the boiler barrel; a flue gas partition plate is horizontally arranged in the middle of the hearth in the height direction and on one side of the outer cylinder close to the burner, a flue gas channel is formed between one side of the flue gas partition plate far away from the burner and the inner wall of one side of the outer cylinder far away from the burner, and a water wall pipe communicated with the boiler barrel and the lower header is also vertically arranged at the position of the hearth in the flue gas channel; the furnace is provided with a smoke outlet for discharging smoke above the smoke baffle, the top of the outer barrel is also provided with a steam pipe communicated with the top of the boiler barrel, and the steam pipe is provided with a main cooling valve.

Preferably, the outer barrel is provided with an ash cleaning port at the bottom of the outer wall of the steam generator on the side far away from the burner.

Preferably, a control display screen for controlling the internal combustion condition of the steam generator is arranged on the outer wall of the outer barrel.

Preferably, the outer wall of the lower header is connected with a water inlet pipe, and the other end of the water inlet pipe connected with the lower header is connected with a water pump.

Preferably, a fire-resistant wall is arranged between the water wall tube and the outer cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

the smoke heat baffle plate is arranged above the combustion area, so that the smoke cannot be directly upwards discharged from the smoke outlet, the stroke of the smoke in the hearth can be prolonged, and the heat absorption is facilitated; the water wall pipe is uniformly arranged along the inner wall of the outer cylinder, so that the heating surface is effectively increased, the formation of water vapor is accelerated, and the radiation heat transfer is enhanced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the structure of the inside of a steam generator according to the present embodiment;

fig. 2 is a schematic cross-sectional view at a-a in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a burner; 2. a hopper; 3. a hot gas port; 4. a steam generator; 5. an outer cylinder; 6. a hearth; 7. a blower; 8. a smoke pipe; 9. a water wall tube; 10. a drum; 11. a lower header; 12. a flue gas baffle plate; 13. a flue gas channel; 14. a smoke outlet; 15. a steam pipe; 16. a main cold valve; 17. cleaning the ash hole; 18. controlling the display screen; 19. a water pump; 20. a refractory wall; 21. and (4) a water inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a corridor type steam generator 4 comprises a combustor 1, wherein a hopper 2 is arranged in the combustor 1, a hot air port 3 is arranged at the lower part of the hopper 2, a steam generator 4 is arranged at one side of the combustor 1, the steam generator 4 comprises an outer barrel 5, a hearth 6 is arranged in the outer barrel 5, the hot air port 3 is communicated with the hearth 6, an air blower 7 and a smoke pipe 8 connected with the air blower 7 are arranged above the combustor 1, the smoke pipe 8 is connected with the other end of the air blower 7 and is connected with the combustor 1, and the bottom of the combustor 1 is communicated with the hearth 6 through the hot air port 3; a plurality of water wall tubes 9 are uniformly arranged on the inner wall of the outer barrel 5 in the circumferential direction, a boiler barrel 10 is arranged on the outer barrel 5 positioned at the top of the hearth 6, a lower header 11 is arranged at the bottom of the outer wall of the outer barrel 5, and two ends of each water wall tube 9 are respectively vertically communicated with the lower header 11 and the boiler barrel 10; a flue gas partition plate 12 is horizontally arranged in the middle of the hearth 6 in the height direction and on one side of the outer cylinder 5 close to the combustor 1, a flue gas channel 13 is formed on one side of the flue gas partition plate 12 far away from the combustor 1 and the inner wall of the outer cylinder 5 far away from the combustor 1, and a water wall pipe 9 communicated with the boiler barrel 10 and the lower header 11 is also vertically arranged at the position of the flue gas channel 13 of the hearth 6; a smoke outlet 14 for discharging smoke is arranged above the smoke partition plate 12 of the hearth 6, a steam pipe 15 communicated with the top of the boiler barrel 10 is further arranged at the top of the outer barrel 5, and a main cooling valve 16 is arranged on the steam pipe 15.

Specifically, the bottom of the outer barrel 5, which is located on the outer wall of one side of the steam generator 4 far away from the combustor 1, is provided with an ash removal port 17, and some residual ash can be accumulated after the biomass fuel is combusted for a plurality of times in a combustion area, and can be cleaned through the ash removal port 17.

Specifically, the outer wall of the outer cylinder 5 is provided with a control display screen 18 for controlling the internal combustion condition of the steam generator 4, and the control display screen 18 can observe the combustion heating condition in the steam generator 4 and can control the internal combustion time and internal pressure.

Specifically, be connected with inlet tube 21 on the lower header 11 outer wall, the other end that inlet tube 21 connects lower header 11 is connected with water pump 19, can add water to lower header 11 through water pump 19 regularly, makes lower header 11 can make water get into water wall tube 9 as required.

Specifically, a fire-resistant wall 20 is arranged between the water wall tube 9 and the outer cylinder 5, and the outer cylinder 5 can be more resistant to high temperature by the aid of the fire-resistant wall 20.

One specific application example of this embodiment is:

when the device is used, the steam generator 4 is electrically connected to open the display screen 18, biomass materials are combusted through the combustor 1, high-temperature flue gas is generated, the high-temperature flue gas is input into the hearth 6 from the hot gas port 3, the flue gas entering the hearth 6 is exhausted to the upper space of the hearth 6 from the flue gas channel 13 by bypassing the flue gas partition plate 12 under the action of the flue gas partition plate 12, the water-cooling wall pipe 9 is fully flushed by the flue gas, and the flue gas flushed with the water-cooling wall pipe 9 is exhausted from the smoke outlet 14; the flue gas generates a large amount of heat in the hearth 6, so that water in the water wall tubes 9 enters the drum 10 through heat absorption and gasification, and after steam in the drum 10 overflows and is saturated, the main cold valve 16 is opened to supply air to the outside. The control display screen 18 can automatically/manually adjust the combustion condition, and the combustion condition in the hearth 6 can be displayed on the control display screen 18.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a vestibule formula steam generator, includes combustor (1), is equipped with hopper (2) in combustor (1), and hopper (2) lower part is equipped with hot gas mouth (3), its characterized in that: a steam generator (4) is arranged on one side of the burner (1), the steam generator (4) comprises an outer barrel (5), a hearth (6) is arranged in the outer barrel (5), the hot air port (3) is communicated with the hearth (6), an air blower (7) and a smoke pipe (8) connected with the air blower (7) are arranged above the burner (1), the smoke pipe (8) is connected with the other end of the air blower (7) and is connected with the burner (1), and the bottom of the burner (1) is communicated with the hearth (6) through the hot air port (3); a plurality of water wall tubes (9) are uniformly arranged on the inner wall of the outer barrel (5) in the circumferential direction, a boiler barrel (10) is arranged at the top of the outer barrel (5) positioned on the hearth (6), a lower header (11) is arranged at the bottom of the outer wall of the outer barrel (5), and two ends of each water wall tube (9) are respectively vertically communicated with the lower header (11) and the boiler barrel (10); a flue gas partition plate (12) is horizontally arranged in the middle of the hearth (6) in the height direction and on one side of the outer cylinder (5) close to the combustor (1), a flue gas channel (13) is formed on one side of the flue gas partition plate (12) far away from the combustor (1) and the inner wall of one side of the outer cylinder (5) far away from the combustor (1), and a water wall pipe (9) communicated with the boiler barrel (10) and the lower header (11) is also vertically arranged at the position of the flue gas channel (13) of the hearth (6); a smoke outlet (14) for discharging smoke is formed in the position, above the smoke partition plate (12), of the hearth (6), a steam pipe (15) communicated with the top of the boiler barrel (10) is further arranged at the top of the outer barrel (5), and a main cooling valve (16) is arranged on the steam pipe (15).

2. A vestibule steam generator as set forth in claim 1 wherein: and an ash cleaning port (17) is arranged at the bottom of the outer wall of the outer barrel (5) on one side of the steam generator (4) far away from the combustor (1).

3. A vestibule steam generator as set forth in claim 1 wherein: and a control display screen (18) for controlling the internal combustion condition of the steam generator (4) is arranged on the outer wall of the outer barrel (5).

4. A vestibule steam generator as set forth in claim 1 wherein: the water-saving type solar water heater is characterized in that the outer wall of the lower header (11) is connected with a water inlet pipe (21), and the other end of the water inlet pipe (21) connected with the lower header (11) is connected with a water pump (19).

5. A vestibule steam generator as set forth in claim 1 wherein: a fire-resistant wall (20) is arranged between the water wall tube (9) and the outer cylinder (5).