Emptying and liquid separating pry for natural gas

Abstract

The utility model relates to the field of natural gas emptying, in particular to an emptying liquid separation pry for natural gas. The sewage treatment device comprises a prying seat, a liquid level transmitter, a sewage treatment device and an emptying liquid separation device, the sewage treatment device is connected with the prying seat, the emptying liquid separation device is connected with the prying seat, and the emptying liquid separation device is located above the sewage treatment device; the sewage treatment device is connected with the liquid level transmitter, and the emptying liquid separation device is connected with the liquid level transmitter; the emptying liquid separation device is provided with an air inlet pipe and a liquid discharge pipe, the sewage treatment device is provided with an exhaust pipe, the exhaust pipe is communicated with the air inlet pipe, and the liquid discharge pipe is connected with the sewage treatment device; manual intervention is reduced, and standardized operation can be achieved; the sewage leakage risk in the station is reduced, the daily management difficulty and operation frequency are reduced, and the sewage loading efficiency is improved; the occupied area of equipment is saved, and the construction cost is reduced; the device is high in integration level and convenient to maintain and manage, the probability that condensate is brought to the torch head is reduced, the condensate amount of an emptying pipeline is reduced, and safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of natural gas venting, and in particular to a venting and separating skid for natural gas. Background Technology

[0002] In the oil and gas sector, liquid accumulation in flare venting pipelines is a problem that is currently addressed by installing venting separators at the venting pipeline junctions. This allows for gas-liquid separation of the gas flow within the venting pipeline, with the gas being vented locally through the venting riser. These liquids typically contain various harmful substances and pollutants, and therefore need to be periodically transported by sewage trucks to a dedicated wastewater treatment plant for processing.

[0003] However, if the separated liquid from the venting separator cannot be transferred in time, the excessive amount remaining in the tank will affect the gas-liquid separation efficiency of the venting separator. When sewage trucks are loaded at natural gas stations, they need to move between the venting separator and sewage treatment tanks at the station. The loading locations are scattered, the sewage loading efficiency is poor, and sewage loading needs to be done manually. The highly repetitive work is time-consuming and labor-intensive, and the transportation of large amounts of sewage can easily lead to sewage leakage. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the inability to transfer the separated liquid from the venting separator at the venting pipeline junction in a timely manner and the dispersed loading locations of wastewater in natural gas stations, and to provide a venting separator skid for natural gas.

[0005] This utility model provides a venting and separating skid for natural gas, including...

[0006] The system includes a skid, a level transmitter, a wastewater treatment device, and a venting and separating device. The wastewater treatment device is connected to the skid, and the venting and separating device is also connected to the skid and is located above the wastewater treatment device. The level transmitter is connected to both the venting and separating device and the wastewater treatment device.

[0007] The venting and separating device is provided with a separating chamber, an air inlet, a venting port, and a drain pipe. The air inlet, the venting port, and the drain pipe are respectively connected to the separating chamber. The sewage treatment device is provided with a treatment chamber, an exhaust pipe, and a sewage discharge line. The exhaust pipe and the sewage discharge line are respectively connected to the treatment chamber. The exhaust pipe is connected to the air inlet, and the drain pipe is connected to the treatment chamber. The air inlet is connected to the air inlet line, the venting port is connected to the venting line, and the sewage discharge line can discharge sewage to the sewage truck.

[0008] This invention relates to a venting and separating skid for natural gas. A level transmitter is connected to a wastewater treatment device on one side and to a venting and separating device on the other, monitoring the pressure difference between the two devices and enhancing leak detection. The venting and separating device is located above the wastewater treatment device. Under gravity, liquid deposited in the venting and separating device flows into the wastewater treatment device through a drain pipe. Gas released from the wastewater treatment device enters the venting and separating device through an exhaust pipe. The wastewater treatment device and the venting and separating device are connected to form a circulation system, simultaneously treating wastewater and vented gas, improving the treatment quality and reducing environmental pollution risks. The venting and separating device is connected to an air inlet pipe to allow vented gas to pass through. The treated gas is discharged from the vent outlet into a vent pipeline, and then discharged to a wastewater truck through a sewage discharge pipeline. The wastewater treatment device and the venting and separating device are mounted on a single skid, reducing manual intervention, saving equipment floor space, and lowering construction costs. It also allows for centralized storage of wastewater at the site, reducing the amount of manual labor required for wastewater truck collection.

[0009] Preferably, the drain pipe is equipped with a one-way valve.

[0010] One-way valves can prevent gas or liquid in the wastewater treatment unit from flowing back from the drain pipe into the venting and separating device, reducing on-site operational risks.

[0011] Preferably, the wastewater treatment device is provided with an inlet, which is connected to the treatment chamber and is used to connect an inlet pipeline.

[0012] The inlet of the wastewater treatment device is connected to an inlet pipeline, which is used to discharge wastewater into the wastewater treatment device.

[0013] Preferably, the air inlet, the vent, and the liquid inlet are respectively provided with a first figure-eight blind plate, a second figure-eight blind plate, and a third figure-eight blind plate. The first figure-eight blind plate is connected to the air inlet pipe, the second figure-eight blind plate is connected to the vent line, and the third figure-eight blind plate is connected to the liquid inlet line.

[0014] One end of the figure-eight blind flange is an annular channel, and the other end is a partition. The annular channel and the partition can be used alternately. By setting the first figure-eight blind flange, the second figure-eight blind flange, and the third figure-eight blind flange, it is convenient to maintain the sewage treatment device and the venting and separating device.

[0015] Preferably, the venting and separating device is equipped with a first thermometer, a first temperature controller, a first pressure gauge, and a first pressure controller; the wastewater treatment device is equipped with a second thermometer, a second temperature controller, a second pressure gauge, and a second pressure controller.

[0016] The first thermometer and the first pressure gauge enable the operator to control the first temperature controller and the first pressure controller to adjust the internal environment of the venting and separating device, making the venting and separating device suitable for gas-liquid separation of vented gas, thus facilitating gas-liquid separation; the second thermometer and the second pressure gauge maintain the sewage treatment device in a suitable environment for sewage treatment, so that the gas in the sewage is released and then discharged to the venting and separating device for treatment through the exhaust pipe.

[0017] Preferably, the wastewater treatment device has a discharge port at the bottom, which is connected to the treatment chamber. The discharge pipeline includes a storage pipeline and a loading pipeline, which are respectively connected to the discharge port. The loading pipeline is equipped with a loading connector, and the storage pipeline is connected to a storage tank.

[0018] The sewage treatment unit is equipped with a drain outlet at the bottom for discharging sewage. The sewage storage pipeline can discharge sewage to a designated sewage storage tank for storage, ensuring the continuous operation of the sewage treatment unit. The loading pipeline can discharge sewage from the sewage treatment unit to a sewage truck for easy collection by the sewage truck.

[0019] Preferably, the wastewater treatment device is provided with a wastewater discharge reserved interface, which is connected to the treatment chamber, and the wastewater discharge reserved interface is equipped with a valve.

[0020] This allows for drainage through the pre-reserved drainage interface after the sewage outlet becomes blocked, facilitating maintenance of the sewage treatment device. The valve connected to the pre-reserved drainage interface is usually closed, and the valve is opened to drain sewage after the sewage outlet becomes blocked.

[0021] Preferably, the skid base includes an upper support base and a lower support base, the upper support base is connected to the lower support base, the upper support base and the lower support base are spaced apart, the upper support base is located above the lower support base, the upper support base is connected to the venting and liquid separating device, and the lower support base is connected to the sewage treatment device.

[0022] The skid base adopts a frame structure, which facilitates the operation of the sewage treatment device and the venting and separating device by the operators; the upper support base is used to support the venting and separating device, and the lower support base is used to support the sewage treatment device, so that the venting and separating device and the sewage treatment device have a height difference.

[0023] Preferably, the lower support base is provided with a ladder, and the ladder is connected to the upper support base.

[0024] Workers can climb the ladder to the upper support base, making it convenient for them to maintain the venting and separating device.

[0025] Preferably, both the wastewater treatment device and the venting and separating device are tank-shaped structural components.

[0026] The tank-shaped structure has a large internal space, which facilitates the venting and separation of air into liquids by the venting and separation device, and allows the wastewater treatment device to hold more wastewater.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] 1. This utility model provides a venting and separating skid for natural gas. A level transmitter is connected to a wastewater treatment device on one side and to a venting and separating device on the other, monitoring the pressure difference between the wastewater treatment device and the venting and separating device to enhance leak monitoring. The venting and separating device is located above the wastewater treatment device. Under gravity, the liquid deposited in the venting and separating device enters the wastewater treatment device through a drain pipe. Gas released from the wastewater treatment device enters the venting and separating device through an exhaust pipe. The wastewater treatment device and the venting and separating device are connected to form a circulation, simultaneously treating wastewater and vented gas, improving the treatment quality of wastewater and vented gas, and reducing the risk of environmental pollution. The venting and separating device is connected to an air inlet pipe to allow vented gas to pass through. The gas treated by the venting and separating device is discharged from the vent outlet into the vent pipeline, and then discharged to the wastewater truck through the sewage pipeline. The wastewater treatment device and the venting and separating device are installed on a single skid, reducing manual intervention, saving equipment floor space, and lowering construction costs. It also allows for centralized placement of wastewater in the plant, reducing the amount of manual labor required when collecting wastewater by sewage trucks.

[0029] 2. This utility model provides a venting and separating skid for natural gas. Both the wastewater treatment device and the venting and separating device are installed on the skid base and connected by pipelines. The venting and separating skid for natural gas can treat wastewater and vented gas, reducing manual intervention and enabling standardized operations. It reduces the risk of wastewater leakage caused by multiple wastewater discharges within the station, reduces the daily management difficulty and operation frequency for workers, and improves wastewater loading efficiency. The equipment has a high degree of integration, saving equipment floor space and reducing construction costs compared to traditional decentralized equipment. It facilitates equipment maintenance and management, reduces the probability of condensate being carried to the flare head, reduces the amount of condensate in the venting pipeline, ensures safety, and has good economic and practical value. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a venting and separating skid for natural gas.

[0031] Figure 2 This is a schematic diagram of the ladder structure of a natural gas venting and separating skid in Example 1;

[0032] Figure 3 This is a schematic diagram of the structure of a venting and separating skid for natural gas in Example 1.

[0033] Marked in the image:

[0034] 1-Venting and separating device, 2-Sewage treatment device, 3-Drain pipe, 4-Lever, 41-Upper support, 42-Lower support, 5-Air inlet, 6-Exhaust pipe, 7-Level transmitter, 8-Vent port, 9-Sewage discharge pipeline, 91-Loading pipeline, 92-Sewage storage pipeline, 10-Liquid inlet, 11-Ladder, 12-Check valve, 13-Sewage discharge reserved interface, 14-Sewage outlet, 151-First figure-eight blind flange, 152-First... Figure-eight blind flange, 153-Third figure-eight blind flange, 161-First thermometer, 162-First temperature controller, 163-First pressure gauge, 164-First pressure controller, 171-Second thermometer, 172-Second temperature controller, 173-Second pressure gauge, 174-Second pressure controller, 18-Vent reserved interface, 100-Air inlet line, 101-Vent line, 102-Liquid inlet line, 103-Sludge storage tank. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0036] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0038] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0039] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0040] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0041] Example 1

[0042] like Figures 1-3 As shown, a venting and separating skid for natural gas includes...

[0043] The system includes a skid 4, a level transmitter 7, a wastewater treatment device 2, and a venting and separating device 1. The wastewater treatment device 2 is connected to the skid 4, and the venting and separating device 1 is connected to the skid 4. The venting and separating device 1 is located above the wastewater treatment device 2. The level transmitter 7 is connected to both the venting and separating device 1 and the wastewater treatment device 2.

[0044] The venting and liquid separating device 1 is provided with a liquid separating chamber, an air inlet 5, an air vent 8, and a liquid drain pipe 3. The air inlet 5, the air vent 8, and the liquid drain pipe 3 are respectively connected to the liquid separating chamber. The sewage treatment device 2 is provided with a treatment chamber, an exhaust pipe 6, and a sewage discharge pipeline 9. The exhaust pipe 6 and the sewage discharge pipeline 9 are respectively connected to the treatment chamber. The exhaust pipe 6 is connected to the air inlet 5, and the liquid drain pipe 3 is connected to the treatment chamber. The air inlet 5 is connected to the air inlet pipeline 100, the air vent 8 is connected to the air vent pipeline 101, and the sewage discharge pipeline 9 can discharge sewage to the sewage truck.

[0045] One side of the level transmitter 7 is connected to the wastewater treatment device 2, and the other side is connected to the venting and separating device 1. This monitors the pressure difference between the wastewater treatment device 2 and the venting and separating device 1, enhancing leak detection. The venting and separating device 1 is located above the wastewater treatment device 2. Under gravity, the liquid deposited in the venting and separating device 1 enters the wastewater treatment device 2 through the drain pipe 3. The gas released from the wastewater treatment device 2 enters the venting and separating device 1 through the exhaust pipe 6. The wastewater treatment device 2 and the venting and separating device 1 are connected to form a circulation system, simultaneously controlling the wastewater and the released air. The system treats wastewater and vented gas, improving the treatment quality and reducing the risk of environmental pollution. The venting and separating device 1 is connected to the air inlet 5 and the air inlet pipe to allow the vented gas to pass through. The gas treated by the venting and separating device 1 is discharged from the venting port 8 into the venting pipeline 101 and then discharged to the wastewater truck through the sewage discharge pipeline 9. The wastewater treatment device 2 and the venting and separating device 1 are installed on a skid 4, reducing manual intervention, saving equipment floor space, and reducing construction costs. This allows wastewater in the station to be centrally stored, reducing the amount of manual labor required when the wastewater truck collects wastewater.

[0046] In an optional embodiment, a venting reserved interface 18 is provided on the venting and separating device 1. The venting reserved interface 18 is connected to the separating chamber and is used to discharge the liquid remaining in the venting and separating device 1 during maintenance.

[0047] In an optional embodiment, the exhaust pipe 6 is connected to the top of the sewage treatment device 2.

[0048] In one or more embodiments, the drain pipe 3 is equipped with a one-way valve 12, which enables the liquid flowing through the drain pipe 3 to flow in one direction, preventing the liquid or gas in the sewage treatment device 2 from flowing back into the venting and separating device 1 through the drain pipe 3; thus reducing the risk of on-site operation.

[0049] In one or more embodiments, the wastewater treatment device 2 is provided with an inlet 10, which is connected to the treatment chamber and connected to the inlet pipeline 102. By providing the inlet 10, the wastewater in the inlet pipeline 102 is discharged into the wastewater treatment device 2. The provision of the air inlet 5, the vent 8 and the inlet 10 facilitates the installation of the natural gas venting and separating skid in the station.

[0050] In an optional embodiment, the venting and liquid separation device 1 is equipped with a first thermometer 161, a first temperature controller 162, a first pressure gauge 163, and a first pressure controller 164; the wastewater treatment device 2 is equipped with a second thermometer 171, a second temperature controller 172, a second pressure gauge 173, and a second pressure controller 174. The first thermometer 161 and the first pressure gauge 163 facilitate the operator's control of the first temperature controller 162 and the first pressure controller 164 to adjust the internal environment of the venting and liquid separation device 1, making it suitable for gas-liquid separation of vented gases. The second thermometer 171 and the second pressure gauge 173 maintain the wastewater treatment device 2 in a suitable environment for wastewater treatment, allowing gases in the wastewater to be released into the venting and liquid separation device 1 for processing.

[0051] In an optional embodiment, the air inlet 5, the vent 8, and the liquid inlet 10 are respectively provided with a first figure-eight blind flange 151, a second figure-eight blind flange 152, and a third figure-eight blind flange 153. The first figure-eight blind flange 151 is connected to the air inlet pipe, the second figure-eight blind flange 152 is connected to the vent line 101, and the third figure-eight blind flange 153 is connected to the liquid inlet line 102. The figure-eight blind flange can isolate the venting and liquid separation skid used for natural gas, making it convenient for operators to perform maintenance. One end of the figure-eight blind flange is an annular channel, and the other end is a partition. When in use, the partition end or the annular channel end can be selected.

[0052] In one or more embodiments, the wastewater treatment device 2 is provided with a discharge port 14 at the bottom, which is connected to the treatment chamber. The discharge pipeline 9 includes a storage pipeline 92 and a loading pipeline 91, which are respectively connected to the discharge port 14. The loading pipeline 91 is provided with a loading connector. The storage pipeline 92 is connected to the storage tank 103. Wastewater from the wastewater treatment device 2 is discharged through the discharge port 14. The wastewater can be discharged to the storage tank 103 for storage through the discharge pipeline 9, and the wastewater can also be discharged to the wastewater truck through the loading connector. In some embodiments, the loading pipeline 91 can also be connected to an external pump to output the wastewater.

[0053] In an optional embodiment, the sewage treatment device 2 is provided with a sewage discharge reserved interface 13, which is connected to the treatment chamber. The sewage discharge reserved interface 13 is equipped with a valve and is used to discharge sewage when the sewage outlet 14 is blocked, which facilitates the maintenance of the sewage treatment device 2 by the operators.

[0054] In one or more embodiments, the skid 4 includes an upper support 41 and a lower support 42. The upper support 41 and the lower support 42 are connected and spaced apart. The upper support 41 is located above the lower support 42. The upper support 41 is connected to the venting and separating device 1, and the lower support 42 is connected to the sewage treatment device 2. The upper support 41 and the lower support 42 support the venting and separating device 1 and the sewage treatment device 2 respectively, so that the venting and separating device 1 and the sewage treatment device 2 are arranged in upper and lower layers.

[0055] In one or more embodiments, the lower support base 42 is provided with a ladder 11, which is connected to the upper support base 41, making it convenient for operators to climb to the upper support base 41 to maintain the venting and separating device 1.

[0056] In one or more embodiments, both the wastewater treatment device 2 and the venting and separating device 1 are tank-shaped structures. The wastewater treatment device 2 has a treatment chamber, through which the wastewater is heated and pressurized by a second thermometer 171, a second temperature controller 172, a second pressure gauge 173, and a second pressure controller 174 to facilitate the release of gas from the wastewater. The venting and separating device 1 has a separating chamber, through which the venting gas is pressurized and cooled by a first thermometer 161, a first temperature controller 162, a first pressure gauge 163, and a first pressure controller 164, so that the liquid in the venting gas condenses and is discharged to the wastewater treatment device 2.

[0057] Specifically, the exhaust pipe 6 connects to the top of the processing chamber.

[0058] Specifically, the wastewater treatment device 2 is a wastewater treatment tank, and the venting and separating device 1 is a venting and separating tank. The wastewater treatment tank is located on the lower support base 42, and the venting and separating tank is located on the upper support base 41. The wastewater treatment tank receives wastewater produced by the equipment's wastewater pipeline, and the venting and separating tank receives gas from the station's venting pipeline 101 for gas-liquid separation. The equipment's wastewater treatment tank and venting and separating tank are connected by a drain pipe 3. The gas received by the wastewater treatment tank is centrally transported to the venting and separating tank through an exhaust pipe 6 connected to a tee. After being processed by the venting and separating tank, the gas is vented locally along the venting pipeline 101. A one-way valve 12 is installed on the drain pipe 3. The liquid separated by the venting and separating tank is collected back to the wastewater treatment tank through the one-way valve 12, and finally waits along the wastewater pipeline for regular loading and transportation by wastewater trucks. The lower support base 42 and the upper support base 41 are integrated skid bases 4 with a frame structure. The wastewater treatment tank and the venting and separating tank share a liquid level transmitter 7, which facilitates the control of the pressure difference between the wastewater treatment tank and the venting and separating tank.

[0059] Specifically, the wastewater treatment tank and the venting separator are integrated on a single skid 4, achieving centralized treatment and separation of wastewater and vented gas. This is suitable for natural gas stations requiring large-scale wastewater loading and unloading operations. It improves production efficiency by reducing wastewater loading time. Since wastewater and vented gas are treated on a single skid 4, the operation process is simplified, reducing manual intervention and facilitating standardized operations, making management more efficient and controllable. Integrating the wastewater treatment tank and the venting separator, along with safety devices such as one-way valves 12, reduces on-site operational risks. Frequent relocation and pipeline connections are avoided, reducing operational complexity and minimizing the risk of equipment damage and environmental pollution due to fatigue and misoperation. The skid-mounted design facilitates installation and transportation. Compared to traditional decentralized equipment, it saves floor space and reduces construction costs. High integration makes maintenance and management more convenient. Environmental requirements are fully considered in the design and use. Optimized wastewater treatment processes and enhanced leak monitoring measures effectively reduce environmental pollution risks.

[0060] Specifically, the wastewater treatment tank receives wastewater produced by the equipment's wastewater pipeline, and the venting and separating tank receives gas from the station's venting pipeline 101 for gas-liquid separation. The equipment's wastewater treatment tank and venting and separating tank are connected by pipelines and equipped with a one-way valve 12 to form an integrated venting and separating skid, which can reduce on-site operational risks and increase the stability and practicality of the venting and separating skid used for natural gas.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A venting and separating skid for natural gas, characterized in that, include The system includes a skid (4), a level transmitter (7), a wastewater treatment device (2), and a venting and separating device (1). The wastewater treatment device (2) is connected to the skid (4), and the venting and separating device (1) is connected to the skid (4). The venting and separating device (1) is located above the wastewater treatment device (2). The level transmitter (7) is connected to both the venting and separating device (1) and the wastewater treatment device (2). The venting and liquid separation device (1) is provided with a liquid separation chamber, an air inlet (5), an air vent (8) and a liquid discharge pipe (3). The air inlet (5), the air vent (8) and the liquid discharge pipe (3) are respectively connected to the liquid separation chamber. The sewage treatment device (2) is provided with a treatment chamber, an exhaust pipe (6) and a sewage discharge line (9). The exhaust pipe (6) and the sewage discharge line (9) are respectively connected to the treatment chamber. The exhaust pipe (6) is connected to the air inlet (5) and the liquid discharge pipe (3) is connected to the treatment chamber. The air inlet (5) is connected to the air inlet line (100), the air vent (8) is connected to the air vent line (101), and the sewage discharge line (9) can discharge sewage to the sewage truck.

2. The venting and separating skid for natural gas according to claim 1, characterized in that, The drain pipe (3) is equipped with a one-way valve (12).

3. The venting and separating skid for natural gas according to claim 1, characterized in that, The wastewater treatment device (2) is provided with an inlet (10), which is connected to the treatment chamber and is used to connect the inlet pipeline (102).

4. A venting and separating skid for natural gas according to claim 3, characterized in that, The air inlet (5), the vent (8) and the liquid inlet (10) are respectively provided with a first figure-eight blind plate (151), a second figure-eight blind plate (152) and a third figure-eight blind plate (153). The first figure-eight blind plate (151) is connected to the air inlet pipe, the second figure-eight blind plate (152) is connected to the vent line (101) and the third figure-eight blind plate (153) is connected to the liquid inlet line (102).

5. A venting and separating skid for natural gas according to claim 1, characterized in that, The venting and liquid separation device (1) is equipped with a first thermometer (161), a first temperature controller (162), a first pressure gauge (163) and a first pressure controller (164); the sewage treatment device (2) is equipped with a second thermometer (171), a second temperature controller (172), a second pressure gauge (173) and a second pressure controller (174).

6. A venting and separating skid for natural gas according to claim 1, characterized in that, The bottom of the sewage treatment device (2) is provided with a sewage outlet (14), which is connected to the treatment chamber. The sewage pipeline (9) includes a sewage storage pipeline (92) and a loading pipeline (91). The sewage storage pipeline (92) and the loading pipeline (91) are respectively connected to the sewage outlet (14). The loading pipeline (91) is provided with a loading connector. The sewage storage pipeline (92) is connected to the sewage storage tank (103).

7. A venting and separating skid for natural gas according to claim 6, characterized in that, The sewage treatment device (2) is provided with a sewage discharge reserved interface (13), which is connected to the treatment chamber and is equipped with a valve.

8. A venting and separating skid for natural gas according to claim 1, characterized in that, The skid (4) includes an upper support (41) and a lower support (42). The upper support (41) is connected to the lower support (42). The upper support (41) and the lower support (42) are spaced apart. The upper support (41) is located above the lower support (42). The upper support (41) is connected to the venting and liquid separation device (1). The lower support (42) is connected to the sewage treatment device (2).

9. A venting and separating skid for natural gas according to claim 8, characterized in that, The lower support base (42) is provided with a ladder (11), which is connected to the upper support base (41).

10. A venting and separating skid for natural gas according to any one of claims 1-9, characterized in that, Both the wastewater treatment device (2) and the venting and liquid separation device (1) are tank-shaped structural components.

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