Oil gas inhibition and recovery device

Abstract

The utility model discloses an oil gas restraining and recycling device which comprises a gas storage tank, a gas inlet steam-water separator is arranged at the output end of the gas storage tank, a compression component is arranged at the output end of the gas inlet steam-water separator, a gas outlet steam-water separator is arranged at the output end of the compression component, and a buffer tank is arranged at the gas output end of the gas outlet steam-water separator. A metering component is arranged at the output end of the buffer tank, an air supplementing component is arranged at the output end of the metering component, and liquid discharging components are arranged at the liquid output ends of the air inlet steam-water separator and the air outlet steam-water separator; according to the utility model, the gas supplementing component is arranged at the output end of the gas storage tank, and when the internal pressure of the gas storage tank is reduced due to gas volatilization caused by temperature rise in the gas storage tank, the gas supplementing component starts to work, so that natural gas enters the gas storage tank for gas supplementing until the pressure in the gas storage tank reaches a set micro-positive pressure state; the gas density in the tank is increased, and the gas volatilization loss caused by temperature rise is reduced, so that the gas volatilization in the tank is inhibited.

Description

Technical Field

[0001] The utility model relates to the field of oil and gas recovery equipment, and particularly relates to an oil and gas suppression and recovery device. Background Art

[0002] For petrochemical and coal chemical enterprises, the storage and loading of volatile flammable liquid materials are involved. In the existing gas storage tanks during use and storage, when the external environmental temperature increases, the gas density in the storage tank will increase, resulting in gas expansion and volatilization loss in the storage tank. In order to suppress the gas volatilization in the tank and reduce the loss of stored gas, a new type of oil and gas suppression and recovery device is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an oil and gas suppression and recovery device to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an oil and gas suppression and recovery device, including an inlet pipe, the output end of the inlet pipe is provided with an inlet air and water separator, the output end of the inlet air and water separator is provided with a compression member for compressing gas, the output end of the compression member is provided with an outlet air and water separator, the gas output end of the outlet air and water separator is provided with a buffer tank, the output end of the buffer tank is provided with a metering member for measuring the volume of gas, the output end of the metering member is provided with a gas supplementing member for adjusting the internal pressure of the gas storage tank, and the liquid output ends of the inlet air and water separator and the outlet air and water separator are provided with a liquid discharging member for discharging condensate.

[0005] Preferably, the compression member includes a variable frequency compressor, the input end of the variable frequency compressor is fixedly connected to the gas output end of the inlet air and water separator, and the output end of the variable frequency compressor is fixedly connected to the input end of the outlet air and water separator.

[0006] Preferably, the metering member includes a flow meter arranged at the output end of the buffer tank, and the output end of the flow meter is used for connecting to the user pipeline network.

[0007] Preferably, the gas supplementing member includes a regulating valve, the input end of the regulating valve is fixedly connected to the output end of the flow meter, and the output end of the regulating valve is fixedly connected to the output end of the inlet pipe.

[0008] Preferably, an oxygen content analyzer for detecting the oxygen content in the gas is arranged at the connection between the output end of the inlet pipe and the input end of the inlet air and water separator.

[0009] Preferably, the liquid discharging member includes a liquid discharging electric valve arranged at the liquid output ends of the inlet air and water separator and the outlet air and water separator, and the output end of the liquid discharging electric valve is provided with a liquid discharging main pipe.

[0010] Preferably, a liquid level transmitter for controlling the opening and closing of a liquid discharge electric valve is provided on the side of the intake steam-water separator and the outlet steam-water separator.

[0011] Technical effects and advantages of the present utility model:

[0012] By providing a gas supplementing component at the output end of the gas storage tank, when the gas in the gas storage tank volatilizes due to temperature rise, causing the internal pressure of the gas storage tank to decrease, the gas supplementing component starts to work, enabling natural gas to enter the gas storage tank for gas supplement until the pressure in the gas storage tank reaches the set slightly positive pressure state, increasing the gas density in the tank and reducing the gas volatilization loss caused by temperature rise, thereby inhibiting the gas volatilization in the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0014] In the figure: 1, intake pipe; 11, liquid level transmitter; 2, intake steam-water separator; 3, variable frequency compressor; 4, outlet steam-water separator; 5, buffer tank; 6, flow meter; 7, regulating valve; 8, oxygen content analyzer; 9, liquid discharge electric valve; 10, liquid discharge main pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] The present utility model provides an Figure 1 oil and gas suppression and recovery device as shown, including an intake pipe 1. A liquid level transmitter 11 for detecting the oxygen content in the gas is provided at the connection between the output end of the intake pipe 1 and the input end of the intake steam-water separator 2. When the detected oxygen content exceeds the standard, it can remind the on-site personnel to perform emergency discharge of the high-oxygen-content gas;

[0017] Specifically, the compression component includes a variable frequency compressor 3. The input end of the variable frequency compressor 3 is fixedly connected to the gas output end of the intake steam-water separator 2, and the output end of the variable frequency compressor 3 is fixedly connected to the input end of the outlet steam-water separator 4;

[0018] It should be noted that the variable-frequency compressor 3 adopts constant-pressure variable-frequency technology, with a constant outlet pressure, which can be set according to the pressure of the natural gas pipeline (between 0.3-0.6 Mpa). A pressure transmitter is provided at the top of the gas storage tank. When the pressure transmitter detects that the pressure of the gas storage tank reaches the set stop pressure, the variable-frequency compressor 3 delays unloading and shuts down;

[0019] A buffer tank 5 is provided at the gas output end of the outlet gas-water separator 4. A metering component for measuring the volume of gas is provided at the output end of the buffer tank 5, and a gas replenishing component for adjusting the internal pressure of the gas storage tank is provided at the output end of the metering component;

[0020] Specifically, the metering component includes a flow meter 6 provided at the output end of the buffer tank 5, and the output end of the flow meter 6 is used to connect to the user pipeline network.

[0021] It should be noted that the flow meter 6 is used to measure the volume of natural gas, which is convenient for the staff to check;

[0022] Specifically, the gas replenishing component includes a regulating valve 7. The input end of the regulating valve 7 is fixedly connected to the output end of the flow meter 6, and the output end of the regulating valve 7 is fixedly connected to the output end of the gas storage tank.

[0023] Drainage components for discharging condensate are provided at the liquid output ends of the inlet gas-water separator 2 and the outlet gas-water separator 4;

[0024] The drainage component includes a drainage electric valve 9 provided at the liquid output ends of the inlet gas-water separator 2 and the outlet gas-water separator 4, and a drainage main pipe 10 is provided at the output end of the drainage electric valve 9.

[0025] Level transmitters 11 for controlling the opening and closing of the drainage electric valve 9 are provided on the sides of the inlet gas-water separator 2 and the outlet gas-water separator 4;

[0026] It should be noted that when the condensate in the separator reaches the set value, the level transmitter 11 controls the opening of the drainage electric valve 9 to drain the liquid to the drainage main pipe 10;

[0027] During the actual use process, in the present utility model, a gas replenishing component is provided at the output end of the inlet pipe 1. When the gas in the gas storage tank volatilizes due to temperature rise, causing the internal pressure of the gas storage tank to decrease, the gas replenishing component starts to work, allowing natural gas to enter the gas storage tank for gas replenishment until the pressure in the gas storage tank reaches the set slightly positive pressure state, increasing the gas density in the tank and reducing the gas volatilization loss caused by temperature rise, thereby inhibiting the volatilization of the gas in the tank.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An oil and gas suppression and recovery device, including an intake pipe (1), characterized in that, The output end of the intake air pipe (1) is provided with an intake air steam separator (2). The output end of the intake air steam separator (2) is provided with a compression member for compressing gas. The output end of the compression member is provided with an outlet air steam separator (4). The gas output end of the outlet air steam separator (4) is provided with a buffer tank (5). The output end of the buffer tank (5) is provided with a metering member for measuring the volume of gas. The output end of the metering member is provided with a gas replenishing member for adjusting the internal pressure of the gas storage tank. The liquid output ends of the intake air steam separator (2) and the outlet air steam separator (4) are provided with a liquid drainage member for discharging condensate.

2. The oil and gas suppression recovery device according to claim 1, wherein The compression member includes a variable frequency compressor (3). The input end of the variable frequency compressor (3) is fixedly connected to the gas output end of the intake air steam separator (2). The output end of the variable frequency compressor (3) is fixedly connected to the input end of the outlet air steam separator (4).

3. The oil and gas suppression recovery device according to claim 1, characterized in that, The metering member includes a flow meter (6) arranged at the output end of the buffer tank (5). The output end of the flow meter (6) is used to connect to the user pipeline network.

4. An oil and gas suppression and recovery device according to claim 3, characterized in that, The gas replenishing member includes a regulating valve (7). The input end of the regulating valve (7) is fixedly connected to the output end of the flow meter (6). The output end of the regulating valve (7) is fixedly connected to the output end of the intake air pipe (1).

5. The oil and gas suppression recovery device according to claim 1, characterized in that, At the connection between the output end of the intake air pipe (1) and the input end of the intake air steam separator (2), an oxygen content analyzer (8) for detecting the oxygen content in the gas is provided.

6. The oil and gas suppression recovery device according to claim 1, characterized in that, The liquid drainage member includes a liquid drainage electric valve (9) arranged at the liquid output ends of the intake air steam separator (2) and the outlet air steam separator (4). The output end of the liquid drainage electric valve (9) is provided with a liquid drainage main pipe (10).

7. The oil and gas suppression and recovery device according to claim 1, characterized in that, Level transmitters (11) for controlling the opening and closing of the liquid drainage electric valve (9) are arranged on the sides of the intake air steam separator (2) and the outlet air steam separator (4).

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