A natural gas compressor recovery device

Abstract

The utility model relates to natural gas compressor auxiliary equipment technical field, especially a kind of natural gas compressor recovery device, including compressor main body, recovery component and filter component, the compressor main body side is provided with drainage valve, the recovery component is sealingly connected with drainage valve, the filter component is communicated with recovery component by pipeline, recovery component guides recovery oil into collection tank by liquid inlet pipe, nitrogen in nitrogen storage tank is transported to collection tank by nitrogen inlet pipe, the effective recovery of natural gas compressor oil liquid and nitrogen pressure liquid can be realized, it is convenient to promote oil recovery efficiency, filter component guides residual liquid into filter tank by liquid outlet, residual liquid is filtered by first filter screen, second filter screen and adsorption respectively, it is guided to recovery tank by return pipe and reflux valve, multiple filtration treatment of residual liquid recovery process can be realized, it is convenient to intercept large particle impurities and oil sludge in residual liquid layer by layer.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for natural gas compressors, and in particular to a natural gas compressor recovery device. Background Technology

[0002] As a core piece of equipment in the process of natural gas extraction, gathering, transportation and utilization, natural gas compressors will generate oily residues during long-term operation or maintenance. If such residues are discharged directly, it will not only waste a lot of oil resources and increase the company's operating costs, but also cause serious pollution to the surrounding environment such as soil and water, which does not meet the requirements of environmental protection policies. Existing methods for treating residual liquid from natural gas compressors mostly involve simple collection followed by disposal, or coarse treatment using a single filtration structure. These methods suffer from low recovery efficiency, poor oil purification, and susceptibility to oxidation and deterioration during the recovery process. Furthermore, the lack of a stable transportation mechanism makes them prone to risks such as pipeline blockage and oil backflow. These methods fail to meet the multiple demands of enterprises for high resource recovery rates, environmental compliance, and long-term equipment operation. Therefore, developing a natural gas compressor recovery device that can efficiently recover, deeply purify, and operate stably has become an urgent technical problem to be solved in this field. Utility Model Content

[0003] The purpose of this invention is to provide a natural gas compressor recovery device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: Design a natural gas compressor recovery device, including a compressor body, a recovery component and a filter component. A drain valve is provided on one side of the compressor body. The recovery component is sealed to the drain valve. The filter component is connected to the recovery component through a pipeline. The recovery assembly includes a collection tank, an inlet pipe, a shut-off valve, a check valve, a nitrogen storage tank, a nitrogen inlet pipe, and a regulating valve. The collection tank has an outlet and a drain valve at the bottom. The inlet pipe is connected between the drain valve and the inlet port at the top of the collection tank. The shut-off valve and the check valve are connected in series on the inlet pipe. The nitrogen inlet pipe is connected between the nitrogen storage tank and the exhaust port at the top of the collection tank. The regulating valve is connected in series on the nitrogen inlet pipe. The filtration assembly includes a filter tank, a top cover, a first filter screen, a second filter screen, an adsorption filter element, a reflux pipe, and a reflux valve. The top cover is installed on the top of the filter tank. The first filter screen, the second filter screen, and the adsorption filter element are fixed inside the filter tank from top to bottom. The reflux pipe connects the liquid outlet end of the filter tank to the collection tank. The reflux valve is connected in series with the reflux pipe.

[0005] Preferably, the collection tank is made of pressure-resistant stainless steel and the inner wall is coated with an anti-corrosion coating. The drain valve is located at the lowest point of the bottom of the collection tank and is a manual valve structure. An automatic exhaust valve is also installed on the top of the collection tank.

[0006] Preferably, the inlet pipe is an oil-resistant rubber and metal composite pipe, and the connection between the pipe body and the drain valve and the collection tank adopts a sealed threaded joint. The flow direction of the one-way valve only allows liquid to flow from the compressor body to the collection tank.

[0007] Preferably, the regulating valve is a pressure reducing regulating structure, and a check valve is also provided on the side of the nitrogen inlet pipe near the collection tank.

[0008] Preferably, the first filter screen is a metal mesh structure, the second filter screen is a pleated glass fiber filter screen, and the adsorption filter element is a columnar activated carbon filter element. All three are detachably connected to the inner wall of the filter tank via slots.

[0009] Preferably, the upper cover plate has multiple sets of fixing holes, and fixing bolts are inserted into the fixing holes and the lower ends of the fixing bolts are threaded to the top of the filter tank. A sealing gasket is provided between the upper cover plate and the filter tank.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model incorporates a recovery component within the device. The recovered oil is introduced into the collection tank via an inlet pipe, and nitrogen from the nitrogen storage tank is transported to the collection tank via a nitrogen inlet pipe. Through coordinated valve control, the system effectively recovers and pressurizes the oil from the natural gas compressor, improving oil recovery efficiency and preventing oxidation and deterioration of the oil during collection. Stable nitrogen pressurization ensures smooth delivery of the oil to the filter assembly, reducing the risk of pipeline blockage and providing stable feeding conditions for subsequent filtration and purification processes.

[0011] 2. This utility model incorporates a filtration assembly within the device. Residual liquid is introduced into the filtration tank through the outlet, where it is filtered by a first filter screen, a second filter screen, and an adsorption filter element. The liquid is then guided to the recovery tank via a return pipe and a return valve. This multi-stage filtration process facilitates the removal of large particles, fine abrasive debris, and sludge from the residual liquid, while simultaneously adsorbing and removing water, organic acids, and other contaminants from the oil. This significantly improves the cleanliness and reuse quality of the recovered oil. The detachable filter screen and filter element design also facilitates regular disassembly, cleaning, or replacement by operators, reducing maintenance difficulty.

[0012] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the working structure according to this utility model; Figure 2 This is a schematic diagram of the overall structure according to the present utility model; Figure 3 An exploded view of the recycling component according to this utility model; Figure 4 This is an exploded view of the filter assembly according to the present invention.

[0014] In the diagram: 1. Compressor body; 11. Drain valve; 2. Recovery assembly; 21. Collection tank; 22. Inlet pipe; 23. Shut-off valve; 24. Check valve; 25. Nitrogen storage tank; 26. Nitrogen inlet pipe; 27. Regulating valve; 28. Outlet; 29. ​​Drain valve; 3. Filter assembly; 31. Filter tank; 32. Top cover plate; 33. First filter screen; 34. Second filter screen; 35. Adsorption filter element; 36. Fixing hole; 37. Fixing bolt; 38. Return pipe; 39. Return valve. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1-4 As shown, this embodiment provides a natural gas compressor recovery device, including a compressor body 1, a recovery component 2 and a filter component 3. A drain valve 11 is provided on one side of the compressor body 1. The recovery component 2 is sealed to the drain valve 11. The filter component 3 is connected to the recovery component 2 through a pipeline. In this embodiment, the recovery component 2 includes a collection tank 21, an inlet pipe 22, a shut-off valve 23, a check valve 24, a nitrogen storage tank 25, a nitrogen inlet pipe 26, and a regulating valve 27. The collection tank 21 has an outlet 28 and a drain valve 29 at its bottom. The inlet pipe 22 connects the drain valve 11 and the inlet port at the top of the collection tank 21. The shut-off valve 23 and the check valve 24 are connected in series on the inlet pipe 22. The nitrogen inlet pipe 26 connects the nitrogen storage tank 25 and the exhaust port at the top of the collection tank 21. The regulating valve 27 is connected in series on the nitrogen inlet pipe 26. The collection tank 21 is made of pressure-resistant stainless steel with an anti-corrosion coating on its inner wall. The drain valve 29 is located at the lowest point of the bottom of the collection tank 21 and is a manual valve. An automatic exhaust valve is also installed at the top of the collection tank 21. The inlet pipe 22 is an oil-resistant rubber and metal composite pipe. The connection between the drain valve 11 and the collection tank 21 uses a sealed threaded joint. The flow direction of the one-way valve 24 only allows liquid to flow from the compressor body 1 to the collection tank 21. The regulating valve 27 is a pressure reducing regulating structure. A check valve is also provided on the side of the nitrogen inlet pipe 26 near the collection tank 21. The recovered oil is introduced into the collection tank 21 through the liquid inlet pipe 22, and the nitrogen in the nitrogen storage tank 25 is transported to the collection tank 21 through the nitrogen inlet pipe 26. By coordinating the valves to control the on and off, the effective recovery and nitrogen-filled liquid of the natural gas compressor oil can be achieved, which facilitates the improvement of oil recovery efficiency and avoids the oil from oxidizing and deteriorating due to contact with air during the collection process. At the same time, the stable nitrogen pressure delivery can ensure that the oil is smoothly delivered to the filter assembly 3, reducing the risk of pipeline blockage and providing stable feeding conditions for the subsequent filtration and purification process. In this embodiment, the filter assembly 3 includes a filter tank 31, a top cover plate 32, a first filter screen 33, a second filter screen 34, an adsorption filter element 35, a return pipe 38, and a return valve 39. The top cover plate 32 is installed on the top of the filter tank 31. The first filter screen 33, the second filter screen 34, and the adsorption filter element 35 are sequentially fixed inside the filter tank 31 from top to bottom. The return pipe 38 connects to the collection tank 21 at the outlet end of the filter tank 31. The return valve 39 is connected in series with the return pipe 38. The first filter screen 33 is a metal mesh structure, the second filter screen 34 is a pleated glass fiber filter screen, and the adsorption filter element 35 is a columnar activated carbon filter element. All three are detachably connected to the inner wall of the filter tank 31 via slots. Multiple sets of fixing holes 36 are provided on the top cover plate 32, and inserts are made into the fixing holes 36. The fixing bolt 37 is threaded to the top of the filter tank 31 at its lower end. A sealing gasket is provided between the upper cover plate 32 and the filter tank 31. The residual liquid is introduced into the filter tank 31 through the liquid outlet 28. The residual liquid is filtered by the first filter screen 33, the second filter screen 34 and the adsorption filter element 35 respectively. It is then guided to the collection tank 21 through the return pipe 38 and the return valve 39. This can realize multiple filtration treatment in the residual liquid recovery process, which is convenient for intercepting large particulate impurities, small grinding debris and sludge in the residual liquid layer by layer. At the same time, it adsorbs and removes pollutants such as water and organic acids in the oil, which greatly improves the cleanliness and reuse quality of the recovered oil. The detachable filter screen and filter element design also makes it easy for operators to disassemble, clean or replace them regularly, reducing maintenance difficulty.

[0017] The working principle and process of this utility model are as follows: In use, first open the drain valve 11 of the compressor body 1 and the shut-off valve 23 on the inlet pipe 22. The residual liquid in the compressor flows into the collection tank 21 through the inlet pipe 22. The automatic exhaust valve at the top of the collection tank 21 discharges the air in the tank. After the residual liquid is collected, close the shut-off valve 23 and the automatic exhaust valve. Through the regulating valve 27, the nitrogen in the nitrogen storage tank 25 is steadily transported to the collection tank 21 through the nitrogen inlet pipe 26. The nitrogen pressure is used to push the oil in the tank through the outlet 28 to the filter tank 31. The oil in the filter tank 31 passes through the first filter screen 33 and the second filter screen 34 to intercept impurities layer by layer. Then, the adsorption filter element 35 removes moisture and contaminants. The qualified oil can be directly returned to the compressor oil tank. If the test fails, the return valve 39 is opened and the oil is guided back to the collection tank 21 through the return pipe 38 for secondary treatment. The drain valve 29 at the bottom of the collection tank 21 can periodically discharge the deposited impurities, realizing efficient recovery, purification and recycling of oil.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A natural gas compressor recovery device, characterized in that, The compressor body (1), the recovery assembly (2), and the filter assembly (3) are included. A drain valve (11) is provided on one side of the compressor body (1). The recovery assembly (2) is sealed to the drain valve (11). The filter assembly (3) is connected to the recovery assembly (2) through a pipeline. The recovery assembly (2) includes a collection tank (21), an inlet pipe (22), a shut-off valve (23), a check valve (24), a nitrogen storage tank (25), a nitrogen inlet pipe (26), and a regulating valve (27). The bottom of the collection tank (21) is provided with an outlet (28) and a drain valve (29). The inlet pipe (22) is connected between the drain valve (11) and the inlet port at the top of the collection tank (21). The shut-off valve (23) and the check valve (24) are connected in series on the inlet pipe (22). The nitrogen inlet pipe (26) is connected between the nitrogen storage tank (25) and the exhaust port at the top of the collection tank (21). The regulating valve (27) is connected in series on the nitrogen inlet pipe (26). The filter assembly (3) includes a filter tank (31), a top cover plate (32), a first filter screen (33), a second filter screen (34), an adsorption filter element (35), a return pipe (38), and a return valve (39). The top cover plate (32) is installed on the top of the filter tank (31). The first filter screen (33), the second filter screen (34), and the adsorption filter element (35) are fixed inside the filter tank (31) from top to bottom. The return pipe (38) is connected between the liquid outlet collection tank (21) of the filter tank (31). The return valve (39) is connected in series with the return pipe (38).

2. The natural gas compressor recovery device according to claim 1, characterized in that: The collection tank (21) is made of pressure-resistant stainless steel and has an anti-corrosion coating on its inner wall. The drain valve (29) is located at the lowest point of the bottom of the collection tank (21) and is a manual valve structure. An automatic exhaust valve is also installed on the top of the collection tank (21).

3. The natural gas compressor recovery device according to claim 1, characterized in that: The inlet pipe (22) is an oil-resistant rubber and metal composite pipe. The connection between the pipe body and the drain valve (11) and the collection tank (21) is a sealed threaded joint. The flow direction of the one-way valve (24) only allows liquid to flow from the compressor body (1) to the collection tank (21).

4. A natural gas compressor recovery device according to claim 1, characterized in that: The regulating valve (27) is a pressure reducing regulating structure, and a check valve is also provided on the side of the nitrogen inlet pipe (26) near the collection tank (21).

5. A natural gas compressor recovery device according to claim 1, characterized in that: The first filter screen (33) is a metal mesh structure, the second filter screen (34) is a pleated glass fiber filter screen, and the adsorption filter element (35) is a columnar activated carbon filter element. All three are detachably connected to the inner wall of the filter tank (31) through slots.

6. A natural gas compressor recovery device according to claim 1, characterized in that: The upper cover plate (32) has multiple sets of fixing holes (36), and fixing bolts (37) are inserted into the fixing holes (36) and the lower end of the fixing bolts (37) is threaded to the top of the filter tank (31). A sealing gasket is provided between the upper cover plate (32) and the filter tank (31).

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