High-power negative pressure combustor

Abstract

The utility model discloses a high-power negative pressure burner which comprises a burning tube, a burning chamber, gas distribution chambers, a burning device and gas distribution devices, the gas distribution devices are communicated with the gas distribution chambers, each gas distribution device is matched with one gas distribution chamber with an internal space, the burning device is connected with the gas distribution chambers and located in the burning chamber, and the gas distribution chambers are communicated with the burning device. The combustion chamber is communicated with the combustion pipe, and arc-shaped air inlets are formed in the two sides of the combustion chamber. According to the negative pressure combustor, combustion air comes from negative pressure suction force in the negative pressure pipeline, incomplete combustion phenomena such as flame separation do not exist, control over large, medium and small fire combustion can be achieved through combination of the multiple valve sets, and the fire requirements in different states are met.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a high-power negative pressure burner. Background Art

[0002] High-power burners on the market all use gun-type burners, which can achieve one-stage fire, two-stage fire or proportional adjustment. They are positive-pressure combustion systems. If used for combustion in a negative-pressure pipe, there may be adverse combustion phenomena such as flame separation. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-power negative pressure burner.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions.

[0005] A high-power negative pressure burner includes a combustion tube, a combustion chamber, an air distribution chamber, a combustion device and an air distribution device. The air distribution device has multiple parts and is connected to the air distribution chamber. Each air distribution device is adapted to an air distribution chamber with an internal space. The combustion device is connected to the air distribution chamber and is located in the combustion chamber. The combustion chamber is connected to the combustion tube, and arc-shaped air inlets are provided on both sides of the combustion chamber.

[0006] As a further improvement of the present invention, the gas distribution device includes a gas valve, a first flexible elbow, a second flexible elbow, a metal hose and a manifold. One end of the first flexible elbow is connected to the manifold through the metal hose, and the other end is connected to the gas valve. One end of the second flexible elbow is connected to the gas valve, and the other end is connected to the gas distribution chamber.

[0007] As a further improvement of the present invention, the combustion device includes a nozzle, a burner, an ignition needle and an ignition monitoring assembly. One end of the nozzle is connected to the gas valve and the other end is facing the burner. The ignition needle and the ignition monitoring assembly are arranged in the combustion chamber.

[0008] As a further improvement of the present invention, the manifold is configured as a T-shaped manifold.

[0009] Beneficial effects of the utility model

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] In the negative pressure burner designed in this paper, the combustion air comes from the negative pressure suction in the negative pressure pipe, and there will be no incomplete combustion phenomena such as flame separation. In addition, through the combination of multiple valve groups, the control of large, medium and small fire power combustion can be achieved to meet the fire power requirements under different conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Figure 2 This is a schematic diagram of the structural disassembly of the present utility model. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] See also Figures 1 to 2 A high-power negative pressure burner includes a combustion tube 1, a combustion chamber 2, an air distribution chamber 3, a combustion device and an air distribution device. The air distribution device has multiple components and is connected to the air distribution chamber 3. Each air distribution device is adapted to an air distribution chamber 3 with an internal space. The combustion device is connected to the air distribution chamber 3 and is located in the combustion chamber 2. The combustion chamber 2 is connected to the combustion tube 1. Arc-shaped air inlets 4 are provided on both sides of the combustion chamber 2. In the negative pressure burner of this design, the combustion air comes from the negative pressure suction force in the negative pressure pipe, and there will be no incomplete combustion phenomena such as flame separation. Moreover, through the combination of multiple valve groups, it is possible to achieve control of large, medium and small firepower combustion to meet the firepower requirements under different conditions.

[0016] Furthermore, the gas distribution device includes a gas valve 51, a first flexible elbow 52, ​​a second flexible elbow 53, a metal hose 54, and a manifold 55. One end of the first flexible elbow 52 is connected to the manifold 55 via the metal hose 54, and the other end is connected to the gas valve 51. One end of the second flexible elbow 53 is connected to the gas valve 51, and the other end is connected to the gas distribution chamber 3. The gas valve 51 is electromagnetically controlled. When energized, the gas valve 51 opens, and gas is supplied to the corresponding chamber 3 of the gas distribution chamber 3. The gas distribution chamber 3 is divided into three chambers, each with seven nozzle holes, for a total of 21 nozzles. The middle gas valve 51 is opened for ignition or low fire, the lower gas valve 51 is opened for medium fire, and the upper gas valve 51 is opened for high fire. The combustion tube 1 is located in front of the combustion chamber 2 and is used to deliver the flame into the negative pressure pipeline.

[0017] Furthermore, the combustion device includes a nozzle 61, a burner 62, an ignition needle 63 and an ignition monitoring assembly 64. One end of the nozzle 61 is connected to the gas valve 51 and the other end is opposite to the burner 62. The ignition needle 63 and the ignition monitoring assembly 64 are arranged in the combustion chamber 2.

[0018] Furthermore, the manifold 55 is configured as a T-shaped manifold, which is connected to the metal hoses 54 through three joints. The three metal hoses 54 correspond to the three gas valves 51 respectively.

[0019] Operating principle: Gas comes in from the manifold 55, passes through the metal hose 54 and the elbow joint, enters the gas valve 51, and then enters the gas distribution chamber 3. The gas is sprayed from the nozzle 61 to the burner 62. The gas and air are mixed inside the burner 62. The pulse spark on the ignition needle 63 ignites the gas, generating a flame, thereby igniting the surrounding burners 62. When the ignition monitoring component 64 detects the ion signal, the ignition is successful, and finally the flame is sprayed into the combustion tube 1.

[0020] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A high-power negative pressure burner, characterized in that: It includes a combustion tube, a combustion chamber, an air distribution chamber, a combustion device and an air distribution device. The air distribution device has multiple parts and is connected to the air distribution chamber. Each air distribution device is adapted to an air distribution chamber with an internal space. The combustion device is connected to the air distribution chamber and is located in the combustion chamber. The combustion chamber is connected to the combustion tube, and arc-shaped air inlets are provided on both sides of the combustion chamber.

2. A high-power negative pressure burner according to claim 1, characterized in that: The gas distribution device includes a gas valve, a first flexible elbow, a second flexible elbow, a metal hose and a manifold. One end of the first flexible elbow is connected to the manifold through the metal hose, and the other end is connected to the gas valve. One end of the second flexible elbow is connected to the gas valve, and the other end is connected to the gas distribution chamber.

3. A high-power negative pressure burner according to claim 1, characterized in that: The combustion device includes a nozzle, a burner, an ignition needle and an ignition monitoring component. One end of the nozzle is connected to the gas valve and the other end faces the burner. The ignition needle and the ignition monitoring component are arranged in the combustion chamber.

4. A high-power negative pressure burner according to claim 2, characterized in that: The manifold is configured as a T-shaped manifold.

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