CN212377949U

CN212377949U - Circulating water power generation type waste heat boiler

Info

Publication number: CN212377949U
Application number: CN202020684747.4U
Authority: CN
Inventors: 夏正国
Original assignee: Yancheng Jilida Railway Special Equipment Manufacturing Co ltd
Current assignee: Yancheng Jilida Railway Special Equipment Manufacturing Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-01-19
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a circulating water power generation type waste heat boiler, which comprises a steam pocket and a high-temperature flue gas box, wherein the lower part of the steam pocket is fixedly connected with the central position below the lower part through a down pipe, the high-temperature flue gas box comprises a lower connecting pipe, a straight-through pipe, an upper connecting pipe and fins, the lower connecting pipe is fixedly connected with the upper connecting pipe through the straight-through pipe, the fins are welded on the surface of the straight-through pipe at uniform intervals, an ascending pipe is welded above the upper connecting pipe, a steam-water separator is arranged in the steam pocket, and the other end of the ascending pipe is fixedly connected with the steam-water separator. The adverse effect of the high-temperature flue gas directly discharged to the outside on the environment is avoided.

Description

Circulating water power generation type waste heat boiler

Technical Field

The utility model belongs to the technical field of heat transfer device, concretely relates to circulating water power generation formula exhaust-heat boiler.

Background

The boiler is used as a heat exchange device, mainly utilizes chemical energy to heat a liquid working medium, in modern industry, some factories often generate waste gas with high heat in the operation process, the waste gas is not subjected to heat treatment under normal conditions or the heat of the waste gas is not recycled, and the waste gas which is not subjected to heat treatment and is directly discharged to the outside is directly discharged, the waste gas can bring certain influence on the rise of the environmental temperature and can bring meaningless consumption to the heat energy.

The existing waste heat boiler has the following problems: the existing waste heat boiler has a complex structure and is unreasonable in arrangement, and the heat collection and recycling effects in waste gas are unsatisfactory.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circulating water power generation formula exhaust-heat boiler to the current exhaust-heat boiler structure that provides in solving above-mentioned background art is complicated, sets up unreasonablely, and to the heat collection in the waste gas and recycle the effect problem of not satisfying oneself.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a circulating water power generation formula exhaust-heat boiler, includes steam pocket and high temperature flue gas case, its characterized in that: the steam pocket below is passed through downcomer fixed connection and is in antithetical couplet below central position, and the steam pocket left side is provided with the inlet tube, including union coupling, through pipe, upper union coupling and fin down in the high temperature flue gas case, the union coupling passes through straight through pipe and upper union coupling fixed connection down, and the even equidistance welding in through pipe surface has the fin, the welding of upper union coupling top has the tedge, including catch water in the steam pocket, the other end fixedly connected with catch water of tedge, steam pipe and steam turbine fixed connection are passed through to the steam pocket top, steam turbine top and generator fixed connection.

Preferably, a plurality of straight-through pipes are uniformly and fixedly connected between the upper connecting pipe and the lower connecting pipe at equal intervals, the upper connecting pipe and the lower connecting pipe are parallel to each other, and the straight-through pipes are perpendicular to the upper connecting pipe and the lower connecting pipe.

Preferably, a plurality of fins are welded on the surface of the straight-through pipe at equal intervals.

Preferably, the upper header, the lower header and the straight-through pipe constitute an evaporator.

Preferably, a plurality of groups of evaporators are arranged in the high-temperature flue gas box.

Preferably, the downcomer, the lower header, the straight pipe, the upper header and the riser form a loop.

Compared with the prior art, the utility model provides a circulating water power generation formula exhaust-heat boiler possesses following beneficial effect:

when high-temperature flue gas passes through the outside of the straight-through pipe, water in the straight-through pipe is heated into a steam-water mixture, because the water in the downcomer is not heated, the density of the steam-water mixture in the straight-through pipe is less than that of the water in the downcomer, pressure difference is formed in the lower header, a steam-water mixture in the ascending pipe is pushed to enter the steam pocket, water in the descending pipe enters the ascending pipe to form natural water circulation, the steam-water mixture entering the steam pocket is separated into saturated steam and water through the steam-water separator, the saturated steam is output through a steam outlet above the steam pocket, the steam pipe enters the steam turbine to drive the generator to generate electricity, the structure is simple, the arrangement is reasonable, the heat in the waste gas is utilized and changed into valuable, the unnecessary consumption of heat energy in the flue gas is reduced, the utilization rate of the heat in the flue gas is high, the effect is good, and the adverse effect of the high-temperature flue gas directly discharged to the outside on the environment is avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of a circulating water power generation type exhaust-heat boiler provided by the utility model;

fig. 2 is a schematic structural view of a steam drum provided by the present invention;

fig. 3 is an enlarged view of a point a according to the present invention;

in the figure: 1. a water inlet pipe; 2. a steam drum; 3. a down pipe; 4. a high temperature flue gas box; 5. a lower connecting pipe; 6. Connecting the pipes; 7. a water vapor pipe; 8. a riser pipe; 9. a steam-water separator; 10. a steam pipe; 11. a steam turbine; 12. a straight-through pipe; 13. a fin; 14. an electric generator.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a circulating water power generation formula exhaust-heat boiler, includes steam pocket 2 and high temperature flue gas case 4, its characterized in that: the lower part of the steam pocket 2 is fixedly connected with the central position below the lower connecting pipe 5 through the descending pipe 3, the left side of the steam pocket is provided with the water inlet pipe 1, water is injected into the steam pocket 2 through the water inlet pipe 1, the high-temperature flue gas box 4 comprises the lower connecting pipe 5, the straight-through pipe 12, the upper connecting pipe 6 and the fins 13, the lower connecting pipe 5 is fixedly connected with the upper connecting pipe 6 through the straight-through pipe 12, a plurality of straight-through pipes 12 are uniformly and equidistantly arranged between the upper connecting pipe 6 and the lower connecting pipe 5, the fins 13 are uniformly and equidistantly welded on the surface of the straight-through pipe 12, the fins are uniformly and equidistantly welded on the surface of the straight-through pipe 12, in order to better heat the straight-through pipe 12, the heat transfer area of the straight-through pipe 12 is increased by welding the fins on the outer surface of the pipeline, so that the straight-through pipe is quickly heated in the high-temperature flue gas box 4, the heating effect is better, the upper connecting pipe 6 is parallel to the lower connecting, the upper connecting pipe 6, the lower connecting pipe 5 and the straight-through pipe 12 form an evaporator, more than one evaporator can be arranged in the high-temperature flue gas box 4, a plurality of groups of evaporators are arranged, after water is filled into the steam pocket 2, the water returns to quickly enter the downcomer 3, the lower connecting pipe 5, the straight-through pipe 12 and the upper connecting pipe 6, the high-temperature flue gas enters the high-temperature flue gas box 4 and is in contact with the outside of the straight-through pipe 12, the water in the straight-through pipe 12 is heated into a steam-water mixture, the density of the steam-water mixture in the straight-through pipe is smaller than that of the water in the downcomer 3 because the water in the downcomer 3 is not heated, a pressure difference is formed in the lower connecting box 5, the steam-water mixture in the straight-through pipe 12 is pushed to enter the steam-water separator 9 in the steam pocket 2 and is separated into saturated steam and water through the steam separator 9, the water continuously enters the downcomer 3, the water in the downcomer 3 enters the straight-through pipe 12 to form natural water circulation, the steam drum 2 comprises a steam-water separator 9, the other end of the ascending pipe 8 is fixedly connected with the steam-water separator 9, the upper portion of the steam drum 2 is fixedly connected with a steam turbine 11 through a steam pipe 10, the upper portion of the steam turbine 11 is fixedly connected with a generator 14, saturated steam separated by the steam-water separator 9 enters the steam turbine 11 through the steam pipe 10, and the generator 14 is driven by the steam turbine 11 to generate electricity.

The utility model discloses a theory of operation and use flow: the utility model discloses after installing, pour into steam pocket 2 water, downcomer 3, lower union 5 and through pipe 12 are just filled up to water, control the position near steam pocket 2 middle part to the water level, when the high temperature flue gas passes through pipe 12 outside, water in through pipe 12 is heated into steam-water mixture, because the water in downcomer 3 does not receive the heating, steam-water mixture density in through pipe 12 is less than the water in downcomer 3, form the pressure differential at lower header 5, promote steam-water mixture in through pipe 12 to get into steam pocket 2, water in downcomer 3 gets into through pipe 12, after steam-water mixture in through pipe 12 gets into steam pocket 2, separate into saturated steam and water through steam separator 9 in steam pocket 2, saturated steam exports through steam pipe 10 above steam pocket 2; the separated water and the water injected into the water inlet pipe 1 enter the downcomer 3 again, saturated steam enters the steam turbine 11 through the steam pipe 10, the steam turbine 11 drives the generator 14 to generate electricity, heat in waste gas is changed into valuable, waste heat in the flue gas is reduced, waste consumption of heat energy in the flue gas is reduced, the utilization rate of the heat in the flue gas is high, the effect is good, and adverse effects of high-temperature flue gas directly discharged to the outside on the environment are avoided.

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

Claims

1. The utility model provides a circulating water power generation formula exhaust-heat boiler, includes steam pocket (2) and high temperature flue gas case (4), its characterized in that: steam pocket (2) below is through downcomer (3) fixed connection at union coupling (5) below central position, and steam pocket (2) left side is provided with inlet tube (1), high temperature flue gas case (4) are including lower union coupling (5), through pipe (12), upper union coupling (6) and fin (13), and lower union coupling (5) are through pipe (12) and upper union coupling (6) fixed connection, and through pipe (12) even equidistance welding in surface has fin (13), the welding of upper union coupling (6) top has tedge (8), include catch water (9) in steam pocket (2), the other end fixedly connected with catch water (9) of tedge (8), steam pocket (2) top is through steam pipe (10) and steam turbine (11) fixed connection, steam turbine (11) top and generator (14) fixed connection.

2. A circulating water power generation type exhaust-heat boiler according to claim 1, characterized in that: the upper connecting pipe (6) and the lower connecting pipe (5) are fixedly connected with a plurality of through pipes (12) at equal intervals, the upper connecting pipe (6) and the lower connecting pipe (5) are parallel to each other, and the through pipes (12) are perpendicular to the upper connecting pipe (6) and the lower connecting pipe (5).

3. A circulating water power generation type exhaust-heat boiler according to claim 1, characterized in that: the surface of the straight-through pipe (12) is uniformly welded with a plurality of fins (13) at equal intervals.

4. A circulating water power generation type exhaust-heat boiler according to claim 1, characterized in that: the upper connecting pipe (6), the lower connecting pipe (5) and the straight-through pipe (12) form an evaporator.

5. A circulating water power generation type exhaust-heat boiler according to claim 1, characterized in that: and a plurality of groups of evaporators are arranged in the high-temperature flue gas box (4).

6. A circulating water power generation type exhaust-heat boiler according to claim 1, characterized in that: the descending pipe (3), the lower connecting pipe (5), the straight-through pipe (12), the upper connecting pipe (6) and the ascending pipe (8) form a loop.