CN110848714A

CN110848714A - Safety explosion-proof device for combustion chamber

Info

Publication number: CN110848714A
Application number: CN201911179907.8A
Authority: CN
Inventors: 李刚; 李晨
Original assignee: Anhui Zhonghuang Environmental Protection Technology Co Ltd
Current assignee: Anhui Zhonghuang Environmental Protection Technology Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-02-28

Abstract

The invention discloses a safe explosion-proof device of a combustion chamber, which comprises a combustion chamber main body, a combustor extending into the combustion chamber and an oxygen input pipe extending into the combustion chamber, wherein a fire baffle for separating two gases is arranged between the oxygen input pipe and the combustor. The combustible tail gas can be prevented from directly flowing into the combustion chamber main body to be instantly contacted with oxygen at high temperature, so that the probability of deflagration is obviously reduced.

Description

Safety explosion-proof device for combustion chamber

Technical Field

The invention relates to a safe explosion-proof device of a combustion chamber, belonging to the technical field of tail gas incineration combustion chambers.

Background

The combustion chamber is a device for burning combustible tail gas, and when the device is used, combustible waste gas is led into the combustion chamber, and oxygen or air is led into the combustion chamber to improve the combustion efficiency.

The existing combustion chamber usually introduces combustible gas into the hearth directly, and the original oxygen in the hearth or the introduced oxygen is instantly contacted with high temperature, so that deflagration is easily caused. The pressure generated by the explosion rises instantaneously, and the explosion of the combustion chamber is easily caused.

Disclosure of Invention

The invention provides a safe explosion-proof device for a combustion chamber, which has the advantage of difficult explosion.

The utility model provides a combustion chamber safety explosion-proof equipment, includes the combustion chamber main part, stretches into the combustor in the combustion chamber, still including stretching into the oxygen input tube in the combustion chamber, be equipped with the fire board that is used for separating two kinds of gas between oxygen input tube and the combustor.

The fire baffle is horizontally or vertically arranged, and the burner and the oxygen input pipe are respectively positioned at the vertical two sides of the fire baffle.

The fire baffle is a solid plate, and a circulating part allowing gas to flow is formed between the fire baffle and the side wall of the combustion chamber main body.

The fire baffle is arranged to be a solid plate, and the fire baffle is provided with a through hole for allowing gas to flow.

The through hole is positioned on one side of the fire baffle, which is far away from the burner and the oxygen input pipe.

The circulation portion is provided with blades, the blades comprise a plurality of rod bodies and sheet bodies, the rod bodies are arranged in the same plane with the fire baffle, the sheet bodies penetrate through the rod bodies, and the sheet bodies rotate along with the flowing of gas.

The blade body is provided with a hole which is convenient for the rod body to pass through, and the diameter of the hole is larger than that of the rod body.

The lateral wall of the combustion chamber main body is also provided with an induced draft fan used for guiding the gas flow direction, and an air inlet of the induced draft fan is arranged towards the circulation part or the through hole.

An explosion-proof valve is further arranged on the combustion chamber main body.

The invention has the following advantages:

1. the fire baffle provided by the invention can prevent combustible tail gas from directly flowing into the combustion chamber main body to be instantly contacted with oxygen at high temperature, so that the deflagration probability is obviously reduced.

2. The induced draft fan provided by the invention plays a role in guiding airflow in the actual use process, gradually guides combustible waste gas to gradually react with oxygen, and reduces the probability of explosion caused by instantaneous contact.

3. When the induced draft fan absorbs airflow, the blade provided by the invention can be driven to be parallel to the airflow direction by the airflow, and the airflow can flow from the gap between the blades; when the induced draft fan is not used, the blade can block a part of the circulating part, so that the possibility of explosion caused by high-temperature contact of combustible waste gas and oxygen is further reduced.

4. The explosion-proof valve provided by the invention can realize instant pressure relief under the condition of air pressure rise, so that the explosion risk is further reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment in which a burner and an oxygen inlet pipe extend from the top of a combustion chamber body;

FIG. 2 is an enlarged view of a portion A of FIG. 1 to show the structure of the blade;

FIG. 3 is a schematic view of the overall structure of another embodiment in which the burner and the oxygen inlet pipe extend from the side wall of the combustion chamber.

In the figure, 1, a combustion chamber body; 2. a burner; 3. an oxygen input tube; 4. a fire shield; 5. a circulation section; 6. a through hole; 7. a blade; 71. a sheet body; 72. a rod body; 8. an induced draft fan; 9. an explosion-proof valve.

Detailed Description

A safe explosion-proof device of a combustion chamber comprises a combustion chamber main body 1, wherein the combustion chamber main body 1 is horizontally arranged into a cylinder or a cube, the top of the combustion chamber main body 1 is provided with an oxygen input pipe 3 and a burner 2 which extend into the combustion chamber, the burner 2 is used for inputting combustible tail gas and lighting the combustible tail gas, and the oxygen is used for assisting combustion; a fire baffle 4 for separating two gases is arranged between the oxygen input pipe 3 and the burner 2.

In the present embodiment, as shown in fig. 1, the combustion chamber is a cube, a fire damper 4 is led out from the inner wall of the top surface of the cube, and the fire damper 4 is a rectangular plate. The fire baffle 4 is vertically arranged, and the burner 2 and the oxygen input pipe 3 are respectively positioned at the vertical two sides of the fire baffle 4.

As an alternative embodiment, as shown in fig. 3, the burner 2 and the oxygen inlet pipe 3 may also be arranged in the side wall of the combustion chamber, in which case the fire shield 4 is arranged horizontally, in the middle between the burner 2 and the oxygen inlet pipe 3.

The fire damper 4 is a solid plate, and a flow passage 5 allowing gas to flow is formed between the fire damper 4 and the side wall of the combustion chamber main body 1. When the fire baffle plate 4 is vertically arranged, the top of the fire baffle plate 4 is connected with the top of the combustion chamber main body 1, and a gap is reserved between the bottom of the combustion chamber main body 1 and the fire baffle plate 4, and the gap is a circulating part 5 allowing gas to flow.

When the fire barrier 4 is horizontally disposed, as an alternative embodiment, the fire barrier 4 is connected to both vertical sidewalls of the combustion chamber body to divide the combustion chamber main body 1 into two regions, and a through-hole 6 is formed in the fire barrier 4 to allow gas to flow. The through-opening 6 is located on the side of the flame shield 4 facing away from the burner 2 and the oxygen inlet tube 3.

Generally speaking, combustible gas is lighter than air, and oxygen is heavier than air, therefore in order to be convenient for with gas mixture burning, still be equipped with draught fan 8 near circulation 5 or through-hole 6 department outside combustion chamber main part 1, draught fan 8 is used for extracting the air current, therefore sets up the air intake of draught fan 8 to just being circulation 5 or through-hole 6 in this embodiment.

As shown in fig. 1 and 2, a plurality of blades 7 are further disposed at the flow portion 5, the blades 7 are rotatably disposed, and the specific rotating structure is as follows: the blade 7 comprises a plurality of rod bodies 72 coplanar with the fire baffle 4 and a sheet body 71 penetrating through the rod bodies 72, wherein holes convenient for the rod bodies 72 to penetrate through are formed in the sheet body 71, and the diameter of each hole is larger than that of each rod body 72. When the airflow flows, the sheet 71 is inserted into the rod 72 and does not receive a circumferential limiting force with the rod 72, so that the sheet 71 can change a relative position with the rod 72 along with the flow of the airflow, and the surface of the sheet 71 is parallel to the flow direction of the airflow.

The side wall of the combustion chamber main body 1 is also provided with an explosion-proof valve 9, and when the phenomenon that the air pressure in the combustion chamber main body 1 is still increased occurs, the explosion-proof valve 9 discharges the increased air pressure so as to reduce the explosion risk.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a combustion chamber safety explosion-proof equipment, includes combustion chamber main part (1), stretches into combustor (2) in the combustion chamber, its characterized in that still includes oxygen input tube (3) that stretches into in the combustion chamber, be equipped with between oxygen input tube (3) and combustor (2) and be used for separating two kinds of gaseous fender fire plate (4).

2. A combustion chamber safety explosion-proof device according to claim 1, characterized in that the fire damper (4) is horizontally or vertically arranged, and the burner (2) and the oxygen input pipe (3) are respectively arranged at two vertical sides of the fire damper (4).

3. A safe and explosion-proof device for a combustion chamber as claimed in claim 2, wherein the fire damper (4) is a solid plate, and a gas flow-through part (5) is formed between the fire damper (4) and the side wall of the combustion chamber main body (1).

4. A safe and explosion-proof device for a combustion chamber as claimed in claim 2, wherein the fire damper plate (4) is provided as a solid plate, and the fire damper plate (4) is provided with a through hole (6) for allowing gas to flow.

5. A combustion chamber safety vent according to claim 4, wherein the through hole (6) is located on the side of the fire damper (4) facing away from the burner (2) and the oxygen inlet pipe (3).

6. A safe and explosion-proof device for a combustion chamber as claimed in any one of claims 3 to 5, wherein the circulating part (5) is provided with a vane (7), the vane (7) comprises a plurality of rods (72) coplanar with the fire damper (4), and a sheet body (71) penetrating the rods (72), and the sheet body (71) rotates along with the gas flow.

7. A safety and explosion-proof device for a combustion chamber as claimed in claim 6, wherein the plate (71) is provided with a hole for the rod (72) to pass through, and the diameter of the hole is larger than that of the rod (72).

8. A combustion chamber safety explosion-proof device according to any one of claims 3 or 4, characterized in that the side wall of the combustion chamber main body (1) is further provided with an induced draft fan (8) for guiding the gas flow direction, and the air inlet of the induced draft fan (8) is arranged towards the circulating part (5) or the through hole (6).

9. A combustion chamber safety explosion-proof device according to claim 1, characterized in that the combustion chamber main body (1) is further provided with an explosion-proof valve (9).