Shale gas compressor discharge liquid storage tank

Abstract

The utility model relates to the field of shale gas field exploitation machinery, in particular to a shale gas compressor discharge liquid storage tank which comprises a tank body, a drain outlet is formed in the tank body and connected with a main pipe of a three-way pipe, a first branch pipe of the three-way pipe is connected with a manual blow-off pipeline, and a manual blow-off valve is arranged at the joint of the first branch pipe and the manual blow-off pipeline; a second branch pipe of the three-way pipe is connected with an automatic blow-off pipeline; an electric ball valve is arranged on the automatic blow-off pipeline, a magnetic flap liquid level meter is mounted on the tank body, and the magnetic flap liquid level meter is electrically connected with the electric ball valve. The defects of an existing shale gas compressor inspection pollution discharge mode can be overcome, real-time monitoring and automatic discharge of the sewage liquid level can be achieved, and the problem that sewage in the three-way pipe enters a manual pollution discharge pipe during automatic pollution discharge can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of shale gas field mining machinery, and in particular to a shale gas compressor discharge liquid storage tank. Background Art

[0002] The use of compressor-boosted conveying technology in shale gas extraction significantly improves natural gas transportation efficiency. Existing compressors rely on manual blowdown, but this traditional method presents several challenges. First, when the water content of the natural gas at the wellhead increases abnormally and night shift personnel fail to conduct timely inspections, this accumulated liquid can quickly accumulate and enter the compressor cylinder. Due to the incompressibility of liquid, once this accumulated liquid is compressed within the compressor cylinder, it generates a tremendous impact force, causing liquid hammer, which can severely damage the compressor cylinder. This damage not only causes the compressor unit to shut down, disrupting normal production processes, but also increases maintenance costs and reduces overall extraction efficiency. Second, compressor units are typically installed in relatively confined, noise-reducing enclosures to minimize noise pollution during operation. However, this limited space poses significant challenges to operators in daily maintenance and blowdown tasks. Blowdown operations, in particular, require pressure, making them significantly more difficult. This not only tests the operator's professional skills but also increases safety risks. Improper operation can easily lead to safety accidents, posing a dual threat to personnel and equipment.

[0003] In addition, with the continuous advancement of shale gas field mining technology and the improvement of intelligent management level, some stations have achieved unmanned operation, so the demand for automatic sewage discharge function of compressors has become more urgent. Summary of the Invention

[0004] The present invention proposes a shale gas compressor discharge liquid storage tank that can monitor and judge the liquid level in real time and has both manual and automatic sewage discharge functions.

[0005] The solution of the present invention is: a shale gas compressor discharge liquid storage tank, including a tank body, a sewage outlet is provided on the tank body, the sewage outlet is connected to the main pipe of a three-way pipe, the first branch of the three-way pipe is connected to a manual sewage pipe, and a manual sewage valve is provided at the connection; the second branch of the three-way pipe is connected to an automatic sewage pipe; the automatic sewage pipe is provided with an electric ball valve, and a magnetic flap level gauge for displaying the water level of the tank body is installed on the tank body, and a reed switch remote transmitter is also provided on the outside of the conduit of the magnetic flap level gauge, and the reed switch remote transmitter is electrically connected to the electric ball valve.

[0006] Beneficial effects: (1) For the traditional compressor sewage discharge structure, the present invention only needs to change the design of the sewage outlet and add a three-way pipe to form a manual and automatic sewage discharge dual channel. In this way, no major changes are made to the original unit, and only adaptive adjustments are made on site. It not only realizes the function of automatic sewage discharge, but also effectively controls the transformation cost, with high economy and practicality; (2) The use of a magnetic flap level gauge can detect the liquid level in the tank, and then determine whether to perform manual sewage discharge. The sewage discharge liquid level value can also be set in advance. When the set value is reached, the electric ball valve is turned on. Open and automatically discharge sewage. The reed switch remote transmitter is electrically connected to the electric ball valve, which can control the electric ball valve to open the automatic sewage pipe according to the water level. (3) Since automatic sewage discharge monitors the liquid level in real time and discharges sewage (the frequency of sewage discharge is higher than manual sewage discharge), when sewage enters the tee pipe, it will inevitably flow into the manual sewage pipe, and after a long time, it will form foul-smelling accumulated water. Therefore, the manual sewage valve is set at the connection between the first branch pipe and a manual sewage pipe (i.e., the intersection of the tee pipe), which can avoid sewage entering the manual sewage pipe during automatic sewage discharge. The present invention can solve the shortcomings of the existing shale gas compressor inspection and sewage discharge method, can realize real-time monitoring and automatic discharge of sewage liquid level, and can avoid the problem of sewage in the tee pipe entering the manual sewage pipe during automatic sewage discharge.

[0007] Furthermore, the magnetic flap level gauge includes a conduit, the upper and lower ends of which are connected to the tank body through a stop valve to form a communicating vessel; a high-level alarm, a float, and a low-level alarm are arranged in sequence from top to bottom in the conduit, and a magnetic plate indicator is bound to the outside of the conduit.

[0008] Furthermore, the manual sewage pipe and the automatic sewage pipe are both connected to a sewage main pipe, and a one-way valve is provided on the sewage main pipe to prevent sewage backflow.

[0009] Furthermore, the electric ball valve is a one-way valve from the automatic sewage pipe toward the sewage main pipe, which can prevent sewage from flowing back.

[0010] Furthermore, the three-way pipe is a T-shaped pipe, which is used to connect the automatic sewage pipe and the manual sewage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a shale gas compressor discharge liquid storage tank of the present invention;

[0012] Figure 2 for Figure 1 Assembly diagram of the medium magnetic flap hydraulic gauge;

[0013] The markings in the accompanying drawings are: tank body 1, tee pipe 2, manual sewage pipe 3, manual sewage valve 3-1, automatic sewage pipe 4, electric ball valve 4-1, one-way valve 5, magnetic flap level gauge 6, high-level alarm 6-1, float 6-2, low-level alarm 6-3, magnetic plate indicator 6-4, reed switch remote transmitter 6-5. DETAILED DESCRIPTION

[0014] like Figure 1 、 Figure 2 The following figure shows a shale gas compressor discharge liquid storage tank that can realize automated monitoring and efficient management of the shale gas compressor discharge process, ensuring the stable operation of the compressor system. The core components of the liquid storage tank include the tank body 1, tee pipe 2, manual sewage pipe 3, automatic sewage pipe 4, magnetic flap liquid level gauge 6 and related control components.

[0015] Tank 1 is equipped with a drain port for discharging impurities and pollutants accumulated during compressor operation. This drain port is equipped with a T-shaped tee 2. The main branch of tee 2 is connected to the drain port. The first branch of tee 2 is connected to a manual drain pipe 3. A manual drain valve 3-1 is installed at this connection, allowing operators to manually drain the sewage when necessary, ensuring the controllability of the drainage process. The manual drain valve 3-1 is also installed at the connection to prevent water accumulated in tee 2 from entering manual drain pipe 3. The second branch of tee 2 is connected to an automatic drain pipe 4, which is equipped with an electric ball valve 4-1. This electric ball valve 4-1 is a one-way valve that connects the automatic drain pipe 4 to the main drain pipe, realizing automated control of the drainage process. The above-mentioned three-way pipe 2 is arranged horizontally, that is, its first branch and second branch are at the same height. The manual sewage pipe 3 and the automatic sewage pipe 4 are finally connected to the sewage main pipe. A one-way valve 5 is provided on the sewage main pipe to ensure one-way flow during the sewage discharge process and prevent backflow pollution.

[0016] A magnetic flap level gauge 6 is mounted on the tank 1. The gauge 6 comprises a conduit, the upper and lower ends of which are connected to the tank via a shutoff valve, forming a communicating vessel to ensure accurate liquid level measurement. Inside the conduit, from top to bottom, are a high-level alarm 6-1, a float 6-2, and a low-level alarm 6-3. When the liquid level reaches a preset high or low level, the corresponding alarm will sound a signal to alert the operator. A magnetic plate indicator 6-4 and a reed switch remote transmitter 6-5 are attached to the outside of the conduit. The magnetic plate indicator 6-4 is affected by the magnetic force of the float and visually displays the current liquid level. The reed switch remote transmitter 6-5 is electrically connected to the electric ball valve 4-1. When the liquid level reaches the preset discharge condition, the reed switch remote transmitter 6-5 transmits a signal to the electric ball valve 4-1, automatically opening the discharge port.

[0017] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by the present invention shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A shale gas compressor discharge liquid storage tank, comprising a tank body, a sewage outlet provided on the tank body, and characterized by: The sewage outlet is connected to the main pipe of a tee pipe, the first branch of the tee pipe is connected to a manual sewage pipe, and a manual sewage valve is provided at the connection; the second branch of the tee pipe is connected to an automatic sewage pipe; an electric ball valve is provided on the automatic sewage pipe, and a magnetic flap level gauge for displaying the water level of the tank body is installed on the tank body, and a reed switch remote transmitter is also provided on the outside of the conduit of the magnetic flap level gauge, and the reed switch remote transmitter is electrically connected to the electric ball valve.

2. The shale gas compressor discharge liquid storage tank according to claim 1, characterized in that: The magnetic flap level gauge includes a conduit, the upper and lower ends of which are connected to the tank body through a stop valve to form a communicating vessel; a high-level alarm, a float, and a low-level alarm are arranged in sequence from top to bottom in the conduit, and a magnetic plate indicator is bound to the outside of the conduit.

3. The shale gas compressor discharge liquid storage tank according to claim 2, characterized in that: The manual sewage pipe and the automatic sewage pipe are both connected to a sewage main pipe, and a one-way valve is provided on the sewage main pipe.

4. The shale gas compressor discharge liquid storage tank according to claim 3, characterized in that: The electric ball valve is a one-way valve from the automatic sewage pipe toward the sewage main pipe.

5. The shale gas compressor discharge liquid storage tank according to claim 4, characterized in that: The three-way pipe is a T-shaped pipe.

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