CN218510878U

CN218510878U - Combustion system for blending ammonia gas in cyclone burner

Info

Publication number: CN218510878U
Application number: CN202222444147.2U
Authority: CN
Inventors: 李宇航; 马筠; 田野; 杜玲; 王志超; 姚伟; 晋中华; 张兴营
Original assignee: Xian Thermal Power Research Institute Co Ltd; Huaneng Power International Inc
Current assignee: Xian Thermal Power Research Institute Co Ltd; Huaneng Power International Inc
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-21
Anticipated expiration: 2032-09-15

Abstract

The utility model belongs to the technical field of the fuel combustion technique and specifically relates to a combustion system that is used for cyclone burner to mix and burns ammonia, including the main combustion case, the top front side of main combustion case is opened and is equipped with the feeder hopper, and the bottom fixedly connected with base of main combustion case rotates on the surface and is connected with two lead screws around the left part of base, and servo motor's output shaft all with lead screw coaxial coupling, the surperficial threaded connection of two lead screws has a set of station platen. This a combustion system for swirl burner mixes burning ammonia passes through the lead screw that the base left side was equipped with, drives through top servo motor for stand platen rather than threaded connection can drive personnel and rise to the combustor top, makes more convenient and can observe the burning condition in real time when personnel overhaul, has solved personnel because the facility is great when to combustor external equipment, and when need observing the burning condition, can't be real-time send into the problem that the top was observed with personnel.

Description

Combustion system for blending ammonia gas in cyclone burner

Technical Field

The utility model relates to a fuel combustion technology field specifically is a combustion system that is used for cyclone burner to mix and burns ammonia.

Background

The coal or hydrocarbon fuel combustion technology is widely applied, the research on the combustion characteristic and the NOx emission characteristic is tested by long-term engineering practice at home and abroad, and the relevant technology is mature, but the problem of reducing the carbon emission of the coal or hydrocarbon fuel combustion technology needs to be considered when the low-carbon tendency is met. Ammonia gas (NH 3) is a good carrier of hydrogen energy, and compared to hydrogen gas (H2), ammonia has the main advantages of high hydrogen content and high volumetric energy density, and liquid ammonia has even higher hydrogen content per unit volume and volumetric energy density than liquid hydrogen. Meanwhile, the fuel is easy to liquefy, convenient to store and transport, high in safety and the like due to the mature production process, is considered to be a more potential clean fuel, and can be effectively used as a carrier of hydrogen and energy. Given the limited capacity of renewable energy sources to produce NH3, it is not possible to completely replace coal with NH3 in a short period of time. Therefore, the mixed combustion of ammonia gas and coal or hydrocarbon fuel in the boiler also needs to be studied intensively.

Therefore, based on the current state of the coal or hydrocarbon fuel combustion technology, it is very important to improve the ammonia-doped combustion to reduce carbon emission, and meanwhile, in the combustion process, because personnel need to constantly observe the combustion chamber to perform proportioning addition on raw materials, a ladder is usually needed to climb the top, so that the maintenance is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combustion system that is used for swirl burner to mix and burns ammonia to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a combustion system for swirl burner mixes burning ammonia, includes the main combustion case, the top front side of main combustion case is opened and is equipped with the feeder hopper, the bottom fixedly connected with base of main combustion case, rotate on the surface of both sides around the left part of base and be connected with two lead screws, two the top of lead screw is equipped with a set of limiting plate, two motor casings of fixed surface of limiting plate are connected with, servo motor is all installed to the inside of motor casing, servo motor's output shaft all with lead screw coaxial coupling, two the surperficial threaded connection of lead screw has a set of platform board of standing, the outside fixed surface of platform board is connected with the rail guard.

Preferably, the top of the main combustion box is fixedly communicated with an auxiliary combustion box, the top of the auxiliary combustion box is communicated with a channel connecting pipe, the top of the channel connecting pipe is communicated with a spray pipe, and the top of the spray pipe is fixedly connected with a cyclone burner.

Preferably, an ammonia gas nozzle is arranged on the left side of the inside of the auxiliary combustion box, a vent pipe is communicated with the left side of the ammonia gas nozzle, and one end, far away from the auxiliary combustion box, of the vent pipe is fixedly connected with an ammonia gas supply box.

Preferably, the top of the ammonia gas supply box is communicated with an infusion valve, and the top of the infusion valve is communicated with a liquid ammonia storage tank.

Preferably, an oxygen generating tank is fixedly connected to the top side of the back of the base, and a first distribution pipe and a second distribution pipe are communicated with the surface of the oxygen generating tank.

Preferably, the right side of the top of the main combustion box is communicated with a burnout air duct discharge pipe.

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

1. the utility model discloses a lead screw that base left side was equipped with, drive through top servo motor, make the station platen rather than threaded connection can drive personnel and rise to the combustor top, make personnel convenient more and can the real-time observation burning condition when overhauing, solved personnel because the facility is great when to combustor external equipment, need use tools such as crane to assist the climbing to maintain, it is very inconvenient and cause danger easily, and when needing to observe the burning condition, unable real-time problem of sending into personnel the top observation.

2. The utility model discloses a setting of two combustion chambers of combustion chamber and auxiliary combustion chamber, the distributing pipe of cooperation back system oxygen case carries out evenly distributed to oxygen, and the ammonia supply box evenly sprays the ammonia to the inside of combustion chamber simultaneously and supports combustion, has solved the combustor internal combustion inadequately, lacks the apparatus of oxygen suppliment and carries out supplementary burning for the great problem of wasting of resources and carbon emission has been increased.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a combustion system for co-combustion of ammonia gas with a cyclone burner according to the present invention;

FIG. 2 is a schematic structural view of a repair assembly in a combustion system for co-combustion of ammonia gas with a cyclone burner according to the present invention;

FIG. 3 is a schematic structural diagram of a combustion assembly in a combustion system for co-combustion of ammonia gas with a cyclone burner according to the present invention;

fig. 4 is a back structure schematic diagram of a combustion assembly in a combustion system for co-combusting ammonia gas in a cyclone burner.

In the figure: 1. a main combustion tank; 10. a feed hopper; 11. a burnout air duct discharge pipe; 2. an auxiliary combustion box; 20. a connecting channel pipe; 30. a nozzle; 3. a cyclone burner; 4. an ammonia gas supply tank; 40. a breather pipe; 41. an ammonia gas nozzle; 50. a transfusion valve; 5. a liquid ammonia storage tank; 6. an oxygen generating box; 60. a first distribution pipe; 61. a second distribution pipe; 7. a base; 8. a screw rod; 80. a limiting plate; 81. a motor housing; 810. a servo motor; 9. a station board; 90. and (5) protecting the fence.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention based on the embodiments of the present invention.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a combustion system for swirl burner mixes burning ammonia, including main burning box 1, the top front side of main burning box 1 is opened and is equipped with feeder hopper 10, the bottom fixedly connected with base 7 of main burning box 1, it is connected with two lead screws 8 to rotate on the surface of both sides around the left part of base 7, the top of two lead screws 8 is equipped with a set of limiting plate 80, two motor shells 81 of fixed surface connection of limiting plate 80, servo motor 810 is all installed to motor shell 81's inside, servo motor 810's output shaft all with lead screw 8 coaxial coupling, two lead screw 8's surface threaded connection has a set of station platen 9, the outside fixed surface of station platen 9 is connected with rail guard 90, when operating personnel need look at the top burning condition, stand in the surface of station platen 9 this moment, and start servo motor 810, servo motor 810 drives lead screw 8 and rotates, station platen 9 upwards lifts along with the rotation of lead screw 8 this moment, the operating personnel stops servo motor 810 after rising to suitable height, can inspect the burning condition according to the demand this moment.

Preferably, the top of the main combustion box 1 is fixedly communicated with the auxiliary combustion box 2, the top of the auxiliary combustion box 2 is communicated with the communicating channel pipe 20, the top of the communicating channel pipe 20 is communicated with the spray pipe 30, the top of the spray pipe 30 is fixedly connected with the cyclone burner 3, and air is distributed through the cyclone burner 3, enters the auxiliary combustion box 2 for preliminary combustion, and then enters the main combustion box 1 for combustion.

Preferably, in the present embodiment, an ammonia gas nozzle 41 is provided on the left side inside the sub-combustion box 2, a vent pipe 40 is connected to the left side of the ammonia gas nozzle 41, an ammonia gas supply box 4 is fixedly connected to one end of the vent pipe 40 away from the sub-combustion box 2, and ammonia gas is delivered through the vent pipe 40 of the ammonia gas supply box 4, so that the ammonia gas nozzle 41 emits ammonia gas into the sub-combustion box 2 to promote combustion.

Preferably, in this embodiment, the top of the ammonia gas supply tank 4 is communicated with an infusion valve 50, the top of the infusion valve 50 is communicated with the liquid ammonia storage tank 5, and the storage of liquid ammonia in the liquid ammonia storage tank 5 can be observed through the platform plate 9.

In the present embodiment, it is preferable that the oxygen generation tank 6 is fixedly connected to the top side of the back of the base 7, the first distribution pipe 60 and the second distribution pipe 61 are communicated with the surface of the oxygen generation tank 6, the first distribution pipe 60 is communicated with the inside of the sub combustion tank 2, and the second distribution pipe 61 enters the inside of the main combustion tank 1.

Preferably, a burnout air duct discharge pipe 11 is communicated with the right side of the top of the main combustion box 1.

The utility model discloses the theory of operation: carry out the during operation, get into the inside burning of main combustion case 1 after the preliminary burning of vice combustion case 2 through cyclone burner 3 air distribution, liquid ammonia 5 inputs liquid ammonia to the inside of ammonia feed tank 4 simultaneously, carry the ammonia through breather pipe 40 after the gasification, make ammonia spout 41 to the inside eruption ammonia of vice combustion case 2 promote the burning, operating personnel need when looking at the top burning condition, stand in the surface of platform board 9 this moment, and start servo motor 810, servo motor 810 drives lead screw 8 and rotates, the ascending lifting of platform board 9 along with the rotation of lead screw 8 this moment, operating personnel stops servo motor 810 after rising to suitable height, can inspect the burning condition according to the demand this moment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 combustion system that is used for swirl burner to mix and burns ammonia, a serial communication port, including main burning case (1), feeder hopper (10) have been seted up to the top front side of main burning case (1), the bottom fixedly connected with base (7) of main burning case (1), rotate on the surface of both sides around the left part of base (7) and be connected with two lead screws (8), two the top of lead screw (8) is equipped with a set of limiting plate (80), the fixed surface of limiting plate (80) is connected with two motor casings (81), servo motor (810) are all installed to the inside of motor casing (81), the output shaft of servo motor (810) all with lead screw (8) coaxial coupling, two the surface threaded connection of lead screw (8) has a set of station platen (9), the outside fixed surface of station platen (9) is connected with rail guard (90).

2. The combustion system for the swirl burner to mix and burn ammonia gas according to claim 1, wherein the top of the main combustion box (1) is fixedly communicated with an auxiliary combustion box (2), the top of the auxiliary combustion box (2) is communicated with a channel connecting pipe (20), the top of the channel connecting pipe (20) is communicated with a spray pipe (30), and the top of the spray pipe (30) is fixedly connected with the swirl burner (3).

3. The combustion system for the swirl burner to mix and burn ammonia gas according to claim 2, wherein an ammonia gas nozzle (41) is arranged at the left side inside the auxiliary combustion box (2), a vent pipe (40) is communicated with the left side of the ammonia gas nozzle (41), and an ammonia gas supply box (4) is fixedly connected to one end of the vent pipe (40) far away from the auxiliary combustion box (2).

4. The combustion system for the blended combustion of ammonia gas by the cyclone burner as claimed in claim 3, wherein the top of the ammonia gas supply tank (4) is communicated with a transfusion valve (50).

5. The combustion system for the blended combustion of ammonia gas by the cyclone burner as claimed in claim 4, wherein the top of the infusion valve (50) is communicated with a liquid ammonia storage tank (5).

6. The combustion system for the mixed combustion of ammonia gas by the cyclone burner as claimed in claim 1, wherein the oxygen making tank (6) is fixedly connected to the top side of the back of the base (7).

7. The combustion system for the mixed combustion of ammonia gas by the cyclone burner as recited in claim 6, characterized in that the surface of the oxygen making box (6) is communicated with a first distribution pipe (60).

8. The combustion system for the blended combustion of ammonia gas with a cyclone burner as set forth in claim 7, characterized in that the surface of the oxygen making box (6) is further communicated with a second distribution pipe (61).

9. The combustion system for the mixed combustion of ammonia gas by the cyclone burner as claimed in claim 1, wherein the right side of the top of the main combustion box (1) is communicated with an over-fire air duct discharge pipe (11).