Natural gas diffusing and recycling device

Abstract

The utility model discloses a natural gas diffusing and recycling device which comprises a rotational flow pipe, a separation bin and a gas storage tank. The two ends of the rotational flow pipe are detachably connected with a diffusing valve and the separation bin respectively. The relief valve is communicated with the pipe network, the other end of the cyclone pipe is communicated with the separation bin, and the other side of the separation bin is communicated with the gas storage tank. When the device is used, the natural gas supply pipe network can be normally diffused, the hidden danger of natural gas diffusion is effectively prevented, and resources are fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas recovery, in particular to a natural gas release and recovery device. Background Art

[0002] Natural gas venting refers to the process of natural gas being gradually released in a closed environment. This often occurs in natural gas transmission pipelines, storage tanks, coal mines and other places. Since natural gas is toxic, venting it will cause great harm to personnel, the environment and equipment, so it is necessary to recycle the vented natural gas. At present, the natural gas supply network generally uses a compressor to extract and pressurize the gas in the area of ​​the pipeline to be repaired, and then inputs it into the large gas pipeline network for users to use. However, since the vented gas is mixed with a large amount of dust particles, in order to prevent the dust in the air from affecting the combustion of the gas, the recovered vented natural gas must be filtered and purified before use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a natural gas emission and recovery device.

[0004] The technical solution of the utility model is as follows: a natural gas release and recovery device includes a cyclone tube, a separation chamber and a gas storage tank, and the two ends of the cyclone tube are detachably connected to the release valve and the separation chamber respectively. The release valve is connected to the pipe network, the other end of the cyclone tube is connected to the separation chamber, and the other side of the separation chamber is connected to the gas storage tank. The gas storage tank includes an air inlet pipe, a tank body and an air outlet pipe, one end of the air inlet pipe is connected to the tank body, and the other end extends into the interior of the separation chamber, and is provided with a filter assembly.

[0005] Furthermore, a conical tube is provided at each end of the swirl tube, the narrow end of the conical tube is integrally connected to the swirl tube, and the wide end of the conical tube is detachably connected to the relief valve and the separation chamber respectively.

[0006] Furthermore, a swirl plate is provided inside the swirl tube, first flanges are provided at both ends of the swirl tube, and a second flange matching the first flange is provided on the separation bin.

[0007] Furthermore, the separation bin includes a bin body and a discharge pipe, and vents are provided on opposite sides of the bin body corresponding to the swirl tube and the gas storage tank respectively, the vents are provided with a second flange, and the gas storage tank is provided with a third flange matching the second flange.

[0008] Furthermore, a hinged end cover is provided at the bottom end of the discharge pipe, and the end cover and the discharge pipe are provided with a first buckle assembly that cooperates with each other.

[0009] Furthermore, the filter assembly includes a pressure ring and a filter plate, the end of the air inlet pipe is provided with a groove matching the filter plate, the pressure ring and the groove are hinged, and the edges of the pressure ring and the groove are provided with a second buckle assembly that matches each other.

[0010] Furthermore, the filter plate includes a dust removal plate and a drying plate. The dust removal plate is fitted with the pressing ring, and the dust removal plate is fitted with the bottom surface of the groove.

[0011] Compared with the prior art, the utility model has the following advantages: the released natural gas passes through the cyclone tube to form a vortex, the solid particles contained in the released natural gas gather on the inner wall of the cyclone tube under the centrifugal effect, and the natural gas is separated from the dust particles in the separation chamber. The overall structure of the device is simple and there is no extra energy consumption. The detachable cyclone tube is easy to inspect and replace. The natural gas is filtered for the second time through the filter assembly on the intake pipe to improve the purity of the natural gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the cyclone tube of the utility model;

[0015] Figure 3 This is a schematic diagram of the separation bin of the utility model;

[0016] Figure 4 This is a schematic diagram of the gas storage tank of the utility model;

[0017] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0018] Figure 6 It is a cross-sectional schematic diagram of the filter plate of the utility model.

[0019] Among them: 1. swirl tube; 2. separation chamber; 3. gas storage tank; 11. relief valve; 12. cone tube; 13. swirl plate; 121. first flange; 122. positioning groove; 21. chamber body; 22. discharge pipe; 211. vent; 212. second flange; 221. end cover; 222. first snap assembly; 31. air inlet pipe; 32. air outlet pipe; 33. tank body; 321. valve; 331. pressure gauge; 332. buzzer; 35. filter plate; 311. third flange; 312. groove; 313. pressure ring; 314. second snap assembly; 351. dust removal plate; 352. drying plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0021] The specific implementation of the utility model will be described below in conjunction with the accompanying drawings:

[0022] like Figures 1 to 6 As shown, a natural gas release and recovery device includes a cyclone tube 1, a separation chamber 2 and a gas storage tank 3. Conical tubes 12 are provided at both ends of the cyclone tube 1, and a cyclone plate 13 is provided inside the cyclone tube 1. The narrow end of the conical tube 12 is integrally connected to the cyclone tube 1, and the wide end of the conical tube 12 is detachably connected to the release valve 11 and the separation chamber 2 respectively. When the natural gas enters the cyclone tube 1 from the conical tube 12, the gas flow rate increases, which is convenient for forming a high-speed vortex and strengthening the centrifugal effect; when the natural gas leaves the cyclone tube 1 from the conical tube 12, the flow rate is restored, and it is convenient to separate from the layered dust particles. The release valve 11 is connected to the pipeline network, the other end of the cyclone tube 1 is connected to the separation chamber 2, and the other side of the separation chamber 2 is connected to the gas storage tank 3. The released natural gas is released from the release valve 11, and the gas passes through the cyclone plate 13 to form a vortex, so that the dust particles contained in the natural gas are separated from the natural gas under the centrifugal effect. In the separation chamber 2, the dust particles are separated from the natural gas, and the natural gas after preliminary purification enters the gas storage tank 3. The detachable swirl tube 1 is easy to inspect and replace, and prevents the swirl tube 1 from having problems and delaying work time. Both ends of the swirl tube 1 are provided with a first flange 121, and the separation chamber 2 is provided with a second flange 212 that matches the first flange 121. The swirl tube 1 is fixedly connected to the relief valve 11 and the separation chamber 2 through the first flange 121.

[0023] The separation bin 2 includes a bin body 21 and a discharge pipe 22. The two opposite sides of the bin body 21 are provided with vents 211 corresponding to the swirl tube 1 and the gas tank 3, respectively. The vent 211 is provided with a second flange 212, and the gas tank 3 is provided with a third flange 311 matching the second flange 212. The separation bin 2 and the gas tank 3 are detachably connected, which is convenient for step-by-step maintenance of each component. When the natural gas vortexes inside the bin body 21, the solid particles are thrown out by the vortex and discharged from the separation bin 2 from the discharge pipe 22; the natural gas enters the gas tank 3. The bottom end of the discharge pipe 22 is provided with a hinged end cap 221, and the end cap 221 and the discharge pipe 22 are provided with a first buckle assembly 222 that cooperates with each other. When the first buckle assembly 222 is fastened and the end cap 221 is closed, the dust particles can be temporarily stored inside the discharge pipe for a period of time; when the first buckle assembly 222 is loosened and the end cap 221 is opened, the accumulated dust is discharged from the separation bin 2 from the end of the discharge pipe under the action of air pressure.

[0024] The gas storage tank 3 includes an air inlet pipe 31, a tank body 33 and an air outlet pipe 32. One end of the air inlet pipe 31 is connected to the tank body 33, and the other end extends into the interior of the separation bin 2, and is provided with a filter assembly. The air inlet pipe 31 is coaxial with the cyclone tube 1, so that dust particles move around the inner wall of the separation bin 2 and the discharge pipe 22, and the natural gas passes through the air inlet pipe 31 into the gas storage tank 3, and is filtered twice by the filter assembly, thereby improving the purity of the natural gas. The filter assembly includes a pressure ring 313 and a filter plate 35. The end of the air inlet pipe 31 is provided with a groove 312 that matches the filter plate 35. The pressure ring 313 is hinged with the groove 312, and the edges of the pressure ring 313 and the groove 312 are provided with a second buckle assembly 314 that matches each other. By locking or loosening the second buckle assembly 314, the opening and closing state of the pressure ring 313 is changed, so that the filter plate 35 can be easily replaced. The filter plate 35 includes a dust removal plate 351 and a drying plate 352. The dust removal plate 351 is made of loose porous material, which is convenient for adsorbing and filtering small particles in natural gas. The material of the drying plate 352 has excellent water absorption performance and can absorb moisture in natural gas. When the pressure ring 313 is locked by the second buckle assembly 314, the dust removal plate 351 is fitted with the pressure ring 313, and the dust removal plate 351 is fitted with the bottom surface of the groove 312. When the natural gas passes through the filter plate 35, it first contacts the dust removal plate 351 to filter out solid particles, and then passes through the drying plate 352 to absorb moisture in the natural gas. An outlet pipe 32 is provided at the bottom of the tank body 33, and a valve 321 is provided on the outlet pipe 32. The gas in the gas storage tank 3 is taken or temporarily stored through the outlet pipe 32. A barometer 331 and a buzzer 332 are provided on the gas storage tank 3. The barometer 331 monitors the pressure in the gas storage tank 3 in real time and is electrically connected to the buzzer 332. When the pressure in the gas storage tank 3 is too high, the buzzer 332 prompts the staff to discharge and use the natural gas in the gas storage tank 3.

[0025] The working principle of the specific embodiment of the utility model is as follows: the natural gas in the pipe network is released through the release valve 11, and the released natural gas passes through the vortex tube 1 and forms a vortex. Under the centrifugal action, the natural gas in the vortex state throws the dust particles to the inner wall of the vortex tube 1 to achieve the stratification of natural gas and solid particles. In the separation bin 2, the dust particles move along the inner wall of the separation bin 2 to the discharge pipe 22, and the natural gas passes through the air inlet pipe 31 and enters the gas storage tank 3.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A natural gas emission and recovery device, characterized in that: The invention comprises a swirl tube (1), a separation chamber (2) and an air storage tank (3), wherein the two ends of the swirl tube (1) are detachably connected to a relief valve (11) and the separation chamber (2), respectively, the relief valve (11) is connected to a pipe network, and the other side of the separation chamber (2) is connected to the air storage tank (3); the air storage tank (3) comprises an air inlet pipe (31) and a tank body (33), one end of the air inlet pipe (31) is connected to the tank body (33), and the other end extends into the interior of the separation chamber (2), and is provided with a filter assembly.

2. The natural gas emission and recovery device according to claim 1, characterized in that: The ends of the cyclone tube (1) are each provided with a conical tube (12), the narrow end of the conical tube (12) being integrally connected to the cyclone tube (1), and the wide end of the conical tube (12) being detachably connected to the relief valve (11) and the separation chamber (2), respectively.

3. The natural gas emission and recovery device according to claim 1, characterized in that: A swirl plate (13) is provided inside the swirl tube (1), first flanges (121) are provided at both ends of the swirl tube (1), and a second flange (212) matching the first flange (121) is provided on the separation bin (2).

4. The natural gas emission and recovery device according to claim 3 is characterized in that: The separation bin (2) comprises a bin body (21) and a discharge pipe (22); two opposite sides of the bin body (21) are provided with vents (211) corresponding to the cyclone tube (1) and the gas storage tank (3), respectively; the vent (211) is provided with the second flange (212); and the gas storage tank (3) is provided with a third flange (311) matching the second flange (212).

5. The natural gas emission and recovery device according to claim 4, characterized in that: The bottom end of the discharge pipe (22) is provided with a hinged end cover (221), and the end cover (221) and the discharge pipe (22) are provided with a first buckle assembly (222) that cooperate with each other.

6. The natural gas emission and recovery device according to claim 1, characterized in that: The filter assembly comprises a pressure ring (313) and a filter plate (35); the end of the air inlet pipe (31) is provided with a groove (312) matching the filter plate (35); the pressure ring (313) is hinged to the groove (312); the edges of the pressure ring (313) and the groove (312) are provided with a second buckle assembly (314) matching each other.

7. The natural gas emission and recovery device according to claim 6, characterized in that: The filter plate (35) comprises a dust removal plate (351) and a drying plate (352); the dust removal plate (351) is in contact with the pressure ring (313); and the dust removal plate (351) is in contact with the bottom surface of the groove (312).

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