Pulse combustion utilization device for combustible gas

Abstract

The utility model discloses a combustible gas pulse combustion utilization device which comprises a gas inlet pipe, a Tesla valve, a spark plug, a plurality of front sleeves, a plurality of rear sleeves and a gas exhaust pipe, the number of the front sleeves is the same as that of the rear sleeves, the front sleeves are sequentially sleeved together from inside to outside to form a front sleeve group, the rear sleeves are sequentially sleeved together from inside to outside to form a rear sleeve group, and the gas exhaust pipe is arranged in the rear sleeve group. The tail portion of the front sleeve set is in butt joint with the rear sleeve set, the front sleeves correspond to the rear sleeves in a one-to-one mode, a Tesla valve is fixedly arranged in the front sleeve on the innermost layer, an air inlet of the Tesla valve is communicated with an air inlet pipe, an air outlet of the Tesla valve is provided with a spark plug, and an exhaust pipe is fixedly arranged in the rear sleeve on the innermost layer. A combustion cavity is formed between the front sleeve set and the rear sleeve set, and the longitudinal section of the combustion cavity is T-shaped, square, round or oval.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy utilization, and particularly relates to a pulse combustion utilization device for combustible gas. Background Technique

[0002] A large amount of combustible gas is generated in production and life, and the combustible gas is divided into flammable and explosive gas and difficult-to-treat malodorous gas that pollutes the environment. The flammable and explosive gas mainly includes methane, hydrogen, carbon monoxide, methanol, ethanol, etc. Under the condition that the lower explosion limit of its mixture with air is less than 10% or the difference between the upper and lower explosion limits is greater than 20%, the gas combustion characteristics are very active. In case of open fire, electric spark, heating, etc., explosion will occur, causing serious safety accidents and risks. The difficult-to-treat gases such as malodor mainly include carbonyl sulfide, toluene, etc., and stable pulse combustion can be realized by mixing a small amount of combustible gas.

[0003] Pulse combustion is a transitional combustion technology. When combustible gas burns in the combustion chamber, after the flue gas is discharged by the expansion pressure of the high-temperature flue gas generated, due to the negative pressure formed in the combustion chamber, new gas and air are inhaled; then, part of the flue gas discharged reversely into the combustion chamber or the high-temperature combustion products remaining in the combustion chamber cause it to catch fire and burn. Pulse combustion has higher thermal efficiency and heat transfer efficiency, and can also reduce the harmful components in the generated flue gas.

[0004] The patent with the application patent number CN202111360191.9 discloses a spiral pulse low-nitrogen combustion method and its burner, belonging to the technical field of burners. Due to the fixed shape of the combustion chamber, this method has poor adaptability to combustible gases with multiple components and fluctuating concentrations.

[0005] How to stably burn combustible gas not only can effectively utilize its energy, but also can reduce the explosion risk and realize the harmless treatment of gas containing pollution components, which is of great significance for safe utilization and energy conservation and emission reduction. Therefore, it is very necessary to develop a pulse combustion utilization device for combustible gas that can solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a pulse combustion utilization device for combustible gas, and an adjustable sleeve is set to realize the variable cavity combustion chamber, so as to achieve stable pulse combustion for combustible gases with multiple components and multiple concentrations.

[0007] The object of the present utility model is achieved as follows. It includes an intake pipe, a Tesla valve, a spark plug, a front sleeve, a rear sleeve, and an exhaust pipe. There are multiple front sleeves and rear sleeves with the same quantity. The front sleeves are sleeved together from the inside to the outside in sequence to form a front sleeve group, and the rear sleeves are sleeved together from the inside to the outside in sequence to form a rear sleeve group. The tail of the front sleeve group is docked with the rear sleeve group, and the front sleeves and rear sleeves correspond one by one. The Tesla valve is fixedly arranged inside the innermost front sleeve. The air inlet of the Tesla valve is communicated with the intake pipe, and a spark plug is arranged at the air outlet of the Tesla valve. The exhaust pipe is fixedly arranged inside the innermost rear sleeve. A combustion chamber is formed between the front sleeve group and the rear sleeve group, and the longitudinal section of the combustion chamber is in a T shape, a square shape, a circular shape, or an oval shape.

[0008] A nested structure is adopted between the sleeves of the sleeve group to ensure that different sleeves can move. A high-temperature resistant sealant is used for sealing between the tail of the front sleeve group and the rear sleeve group, such as materials like high-temperature resistant rubber and high-temperature resistant silica gel.

[0009] Preferably, the combustion chamber is formed after several front sleeves and rear sleeves are respectively pulled outwards.

[0010] Preferably, when the front sleeve and the rear sleeve are in the initial position, a combustion chamber is formed at the center inside the sleeve structure composed of the front sleeve group and the rear sleeve group.

[0011] Preferably, the number of valves of the Tesla valve is from 1 to 10. The number of valves refers to the number of flaps inside the Tesla valve. The flaps inside the Tesla valve can differentiate the incoming gas. The more the number of valves, the better the effect of differentiating the gas, which can avoid the problem of insufficient ignition or explosion when a large amount of combustible gas directly enters and is ignited.

[0012] Preferably, the number of Tesla valves is from 1 to 10. The number refers to the complete Tesla valves. Multiple Tesla valves can be installed in the front sleeve in a parallel or series manner. The Tesla valve can make the gas flow unidirectionally and avoid gas backflow explosion. The change in the number of Tesla valves can adapt to different air intakes. When the air intake is large, multiple Tesla valves can be used; when the air intake is small, fewer Tesla valves can be used.

[0013] Preferably, the number of spark plugs is from 1 to 30. One or more spark plugs can be installed on one Tesla valve. When multiple spark plugs are installed on the Tesla valve, the installation method can be in the form of a triangle, a pentagram, etc. Installing multiple spark plugs can make the gas be fully ignited. Specifically, the spark plug can be a multi-point ignition spark plug, which means that multiple ignition points are welded on one spark plug to ensure the smooth ignition of the combustible gas.

[0014] Preferably, the diameter of the exhaust pipe is 1 cm - 50 cm.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] 1. Utilize the unidirectional flow characteristic of the Tesla valve to achieve forward ventilation and reverse blocking of flammable and explosive gases, avoiding backfire explosion;

[0017] 2. Optimize the layout of the spark plugs to optimize the ignition spatial position of pulse combustion and optimize the startup process of pulse combustion;

[0018] 3. The sleeves are sleeved together to form multi-stage sleeves. Through the telescopic combination of the multi-stage sleeves, stepless adjustment in the horizontal and vertical directions of the pulse combustion cavity is achieved, which is conducive to constructing multi-dimensional and multi-scale pulse combustion to adapt to combustible gases with different components and concentrations, realizing stable pulse combustion with high combustion efficiency; Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 1;

[0020] Figure 2 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 2;

[0021] Figure 3 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 3;

[0022] Figure 4 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 4;

[0023] Figure 5 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 5;

[0024] Figure 6 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 6;

[0025] Figure 7 It is a schematic structural diagram of the pulse combustion utilization device for combustible gas in Embodiment 7;

[0026] In the figure: 1 - intake pipe, 2 - Tesla valve, 3 - spark plug, 4 - front sleeve, 5 - rear sleeve, 6 - exhaust pipe, 7 - combustion chamber. Detailed Embodiment

[0027] The present utility model will be further described below in conjunction with the embodiments and the drawings, but it is not limited to the present utility model in any way. Any transformation or replacement based on the teachings of the present utility model falls within the protection scope of the present utility model.

[0028] Embodiment 1

[0029] A chemical enterprise produces a large amount of gas, the main component of which is toluene. The concentration of this gas is 1.2%-7.0%, which is a combustible gas. The percentage here is the volume percentage;

[0030] As attached Figure 1 As shown, the pulse combustion utilization device of combustible gas in this embodiment includes an intake pipe, a Tesla valve, a spark plug, a front sleeve, a rear sleeve and an exhaust pipe. There are 10 front sleeves and 10 rear sleeves and the same number. The front sleeves are sequentially sleeved together from the inside to the outside to form a front sleeve group, and the rear sleeves are sequentially sleeved together from the inside to the outside to form a rear sleeve group. The tail of the front sleeve group is connected with the rear sleeve group, and the front sleeve and the rear sleeve correspond to each other one by one. The Tesla valve is fixed in the innermost front sleeve, the Tesla valve inlet is connected to the intake pipe, the Tesla valve outlet is provided with a spark plug, and the exhaust pipe is fixed in the innermost rear sleeve; a combustion chamber is formed between the front sleeve group and the rear sleeve group, and the longitudinal cross-section of the combustion chamber is square; the combustion chamber 7 is formed after the innermost front sleeve 4 and the rear sleeve 5 are pulled outward respectively; the number of Tesla valves 2 is 2, the number is 1, and the number of spark plugs 3 is 5;

[0031] The combustible gas is passed through the intake pipe 1 into the Tesla valve 2 and then into the combustion chamber, the spark plug 3 is ignited, and the combustible gas undergoes stable pulse combustion in the combustion chamber; and the gas is exhausted through the exhaust pipe 6.

[0032] Example 2

[0033] A petrochemical production enterprise produces a large amount of gas, the main component of which is ethane. The concentration of this gas is 3%-15%, which is a combustible gas. The percentage here is the volume percentage;

[0034] As attached Figure 2 As shown, the pulse combustion utilization device of combustible gas in this embodiment is the same as that in Embodiment 1 except that the combustion chamber 7 is formed by pulling outwards three layers of front sleeve 4 and rear sleeve 5 from the innermost layer, the length of the combustion chamber 7 is 22 cm, and the diameter is 13 cm; the number of Tesla valves 2 is 4, the number of spark plugs 3 is 1, and the number of spark plugs 3 is 9;

[0035] The combustible gas is passed through the intake pipe 1 into the Tesla valve 2 and then into the combustion chamber, the spark plug 3 is ignited, and the combustible gas undergoes stable pulse combustion in the combustion chamber; and the gas is exhausted through the exhaust pipe 6.

[0036] Example 3

[0037] A large amount of gas is produced during the gas extraction process in a certain enterprise's coal mine. The gas is mainly composed of methane, with a concentration of 3%-18%. It is a combustible gas, and the percentage here is the volume percentage;

[0038] As attached Figure 3As shown, for the pulsed combustion utilization device of combustible gas in this embodiment, except that the combustion chamber 7 is formed by pulling the three-layer front sleeve 4 and the rear sleeve 5 outwards starting from the innermost layer, the length of the combustion chamber 7 is 22 cm and the diameter is 13 cm; the number of valves of the Tesla valve 2 is 6, the number of units is 1, and the number of spark plugs 3 is 9, the rest are the same as in Embodiment 1;

[0039] The combustible gas is introduced into the Tesla valve 2 through the intake pipe 1 and then enters the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

[0040] Embodiment 4

[0041] A certain chemical production process generates a large amount of gas. The main component of this gas is hydrogen, and the gas concentration is 4.0% - 75.6%, which is a combustible gas. Here, the percentage is by volume;

[0042] As shown in the appendix Figure 4 As shown, for the pulsed combustion utilization device of combustible gas in this embodiment, except that the combustion chamber 7 is formed by pulling the seven-layer front sleeve 4 and the rear sleeve 5 outwards starting from the innermost layer, the length of the combustion chamber 7 is 30 cm and the diameter is 20 cm; the number of valves of the Tesla valve 2 is 10, the number of units is 1, and the number of spark plugs 3 is 15, the rest are the same as in Embodiment 1;

[0043] The combustible gas is introduced into the Tesla valve 2 through the intake pipe 1 and then enters the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

[0044] Embodiment 5

[0045] A certain metallurgical enterprise generates a large amount of gas. The main component of this gas is carbon monoxide, and the gas concentration is 12.5% - 74.2%, which is a combustible gas. Here, the percentage is by volume;

[0046] As shown in the appendix Figure 5 As shown, for the pulsed combustion utilization device of combustible gas in this embodiment, except that the combustion chamber 7 is formed by pulling the ten-layer front sleeve 4 and the rear sleeve 5 outwards starting from the innermost layer, the longitudinal section of the combustion chamber is circular; the number of valves of the Tesla valve 2 is 10, the number of units is 1, and the number of spark plugs 3 is 21, the rest are the same as in Embodiment 1.

[0047] The combustible gas is introduced into the Tesla valve 2 through the intake pipe 1 and then enters the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

[0048] Embodiment 6

[0049] As shown in the appendix Figure 6As shown, in the pulsed combustion utilization device for combustible gas in this embodiment, a certain rubber production enterprise generates volatile organic gas, and the main components of this volatile organic gas mainly include substances such as toluene, benzene, and xylene. The gas concentration is 1.0% - 10%, which is a combustible gas. Here, the percentage is by volume;

[0050] Except that the combustion chamber 7 is formed by pulling a front sleeve 4 and three rear sleeves 5 outwards layer by layer starting from the innermost layer, and the longitudinal section of the combustion chamber is T-shaped; the number of valves of the Tesla valve 2 is 4, the number is 1, and the number of spark plugs 3 is 5, the rest are the same as in Embodiment 1.

[0051] The combustible gas is introduced into the Tesla valve 2 through the intake pipe 1 and then enters the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

[0052] Embodiment 7

[0053] A certain chemical enterprise generates a large amount of gas, and the main components of this gas are mainly malodorous components such as carbonyl sulfide. The gas concentration is 1 - 3%, which is not a combustible gas. Here, the percentage is by volume;

[0054] As shown in the appendix Figure 7 As shown, in the pulsed combustion utilization device for combustible gas in this embodiment, except that the longitudinal section of the combustion chamber is oval, the rest are the same as in Embodiment 5.

[0055] The non-combustible gas and methane gas are mixed and then introduced into the Tesla valve 2 through the intake pipe 1 and then enter the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

[0056] The working principle and process of the present utility model: According to the components and concentration of the combustible gas, pull the corresponding number of front sleeves 4 and rear sleeves 5 to change the volume of the combustion chamber 7 to an appropriate size; introduce the combustible gas into the Tesla valve 2 through the intake pipe 1 and then enter the combustion chamber. The spark plug 3 ignites, and the combustible gas undergoes stable pulsed combustion in the combustion chamber; exhaust is through the exhaust pipe 6.

Claims

1. A pulse combustion utilization device for combustible gas, comprising an intake pipe (1), a Tesla valve (2), a spark plug (3), a front sleeve (4), a rear sleeve (5) and an exhaust pipe (6), characterized in that There are multiple front sleeves (4) and rear sleeves (5) with the same quantity. The front sleeves (4) are sleeved together from the inside to the outside in sequence to form a front sleeve group, and the rear sleeves (5) are sleeved together from the inside to the outside in sequence to form a rear sleeve group. The tail of the front sleeve group is docked with the rear sleeve group, and the front sleeves (4) and the rear sleeves (5) are in one-to-one correspondence. A Tesla valve (2) is fixedly arranged inside the innermost front sleeve (4). The air inlet of the Tesla valve (2) is communicated with an air inlet pipe (1), and a spark plug (3) is arranged at the air outlet of the Tesla valve (2). An exhaust pipe (6) is fixedly arranged inside the innermost rear sleeve (5); a combustion chamber (7) is formed between the front sleeve group and the rear sleeve group, and the longitudinal section of the combustion chamber (7) is in a T shape, a square shape, a circular shape or an oval shape.

2. The pulse combustion utilization device for combustible gas according to claim 1, characterized in that The combustion chamber (7) is formed by pulling several front sleeves (4) and rear sleeves (5) outwards respectively.

3. The pulse combustion utilization device for combustible gas according to claim 1, characterized in that When the front sleeves (4) and the rear sleeves (5) are in the initial positions, a combustion chamber (7) is formed at the center inside the sleeve structure formed by the front sleeve group and the rear sleeve group.

4. The pulse combustion utilization device for combustible gas according to claim 1, wherein The number of valves of the Tesla valve (2) is from 1 to 10.

5. The pulse combustion utilization device for combustible gas according to claim 1, characterized in that The number of the Tesla valves (2) is from 1 to 10.

6. The pulse combustion utilization device for combustible gas according to claim 1, characterized in that The number of the spark plugs (3) is from 1 to 30.

7. The pulsed combustion utilization device for combustible gas according to claim 1, characterized in that The diameter of the exhaust pipe (6) is 1 cm - 50 cm.

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