A gas-liquid separation device

Abstract

A gas-liquid separation device comprises an upper cavity and a lower cavity connected to the upper cavity, wherein the upper cavity and the lower cavity together form a hollow chamber, an air inlet component and an air outlet component are respectively arranged at both ends of the upper cavity and the lower cavity, a water filter component is arranged inside the upper cavity, and an oil filter component is arranged inside the lower cavity. Through the water filter component and the oil filter component arranged inside, the gas-liquid mixture entering the chamber can be separated into gas and liquid, achieving the technical effect of sufficient filtration, stable airflow, and smooth gas flow path.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation device. Background Art

[0002] At present, during the comprehensive logging construction in the process of oil and gas exploration, gas-liquid separators are generally used to achieve the purpose of gas-liquid separation and gas drying. Among them, when using a gas-liquid separator to separate gas and liquid, the suspended condensation ball is mainly used to separate gas and liquid.

[0003] This gas-liquid separation device has a simple structure, low cost and is easy to use. However, although it can effectively separate the gas-liquid mixture to be processed, in the process of using the gas-liquid separator to separate the gas-liquid mixture, since the gas-liquid inlet of the gas-liquid separator is a straight cylinder, it is easy to be blocked by the dripping liquid and the precipitated impurities during the treatment. At the same time, the cold source of the device is a condensation ball. Since the volume of a single condensation ball is small, the contact area with the gas-liquid mixture to be processed is small, so the condensation effect is poor.

[0004] In addition, during the movement of the gas-liquid mixture, the airflow is easily unstable due to the influence of the gravity of the condensation ball, resulting in insufficient filtration. At the same time, in order to prevent the suction of drilling fluid and contamination of the gas path, the self-sealing plug in the gas-liquid splitter will also be stuck by impurities and other factors (such as rust and oxidation), causing frequent gas path blockages and resulting in the problem of overall gas flow obstruction.

[0005] Therefore, sufficient filtration, improved condensation effect, stable overall airflow, and smooth gas flow are technical issues that urgently need to be solved in this field. Utility Model Content

[0006] In order to overcome the defects in the above-mentioned prior art, the utility model provides a gas-liquid separation device, which has good condensation effect, stable overall air flow and unobstructed gas flow path.

[0007] According to the utility model, a gas-liquid separation device is provided, comprising an upper cavity and a lower cavity connected to the upper cavity, wherein the upper cavity and the lower cavity together form a hollow chamber, the ends of the lower cavity and the upper cavity are respectively provided with an air inlet component and an air outlet component, a water filter component is provided inside the upper cavity, and an oil filter component is provided inside the lower cavity.

[0008] In one embodiment, the water filter assembly includes a group of arcuate water filter membranes spaced apart from each other, and the oil filter assembly includes a group of arcuate oil filter membranes spaced apart from each other, wherein the openings of the arcuate water filter membranes face upward and the openings of the arcuate oil filter membranes face downward.

[0009] In one embodiment, a plurality of curved structures are provided on the inner walls of the upper cavity and the lower cavity for mounting the ends of the arc-shaped water filter membrane and the arc-shaped oil filter membrane.

[0010] In one embodiment, a plurality of undulating grooves are formed on the end surface of each oil filter membrane close to the air intake component, and a through hole is provided at the bottom of each water filter membrane.

[0011] In one embodiment, the air intake component extends through the lower cavity into the chamber and bends at least 90 degrees below the oil filter assembly.

[0012] In one embodiment, the lower cavity further includes a water separation cover arranged above the oil filter assembly.

[0013] In one embodiment, the upper cavity and the lower cavity are both double-layer structures with an inner wall and an outer wall, a cavity is formed between the inner wall and the outer wall, and the outer walls of the upper cavity and the lower cavity are provided with at least one filling hole connected to the cavity, which is used to fill the cavity with a substance that can condense the cavity.

[0014] In one embodiment, the gas outlet component comprises a branch pipeline for flushing.

[0015] In one embodiment, a liquid outlet pipe communicating with the chamber is disposed at the closed end of the lower cavity, and a diameter of the liquid outlet pipe gradually decreases in a direction away from the lower cavity.

[0016] In one embodiment, a valve for opening or closing the liquid outlet pipe is provided on the liquid outlet pipe.

[0017] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0018] 1. The gas-liquid separation device of the utility model forms a hollow chamber through the upper cavity and the lower cavity, and an oil filter component and a water filter component with different directions are arranged inside the chamber, so as to achieve the technical effect of fully filtering the gas-liquid mixture entering the chamber.

[0019] 2. The gas-liquid separation device of the utility model is designed to have a double-layer structure with both the upper cavity and the lower cavity, so that a receiving cavity can be formed between the inner wall and the outer wall of the upper cavity and the lower cavity. The receiving cavity can be filled with refrigerant, and a low-temperature environment can be formed inside the hollow cavity formed by the upper cavity and the lower cavity by filling the refrigerant in the receiving cavity, thereby increasing the condensation area when the gas-liquid mixture passes through, solving the technical problems in the prior art that the contact area between the condensation ball and the gas-liquid mixture is small, the condensation effect is poor, and the condensation ball affects the stability of the airflow, thereby achieving the technical effects of increasing the condensation area, improving the condensation effect, and stabilizing the airflow movement.

[0020] 3. The gas-liquid separation device of the utility model solves the technical problem in the prior art that the air intake component is blocked by liquid dripping or impurities contained in the gas-liquid mixture settling, by extending the air intake component into the interior of the chamber and bending the end of the air intake component entering the interior of the chamber at a certain angle, thereby achieving the technical effect of unobstructed gas flow path. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0022] Figure 1 The overall structure of the gas-liquid separation device according to the utility model is schematically shown;

[0023] Figure 2 Schematically shows Figure 1 The installation state of the curved plug structure and the oil filter membrane in the gas-liquid separation device shown;

[0024] Figure 3 Schematically shows Figure 1 The cross-sectional structure of the oil filter membrane in the gas-liquid separation device is shown.

[0025] It should be noted that the drawings are not necessarily drawn in accordance with the actual scale. In all drawings, the same reference numerals represent the same technical features, specifically: 100-gas-liquid separation device; 1-upper cavity; 10-chamber; 11-hanging ear; 12-curved plug structure; 13-water filter assembly; 14-water filter membrane; 20-oil filter assembly; 21-oil filter membrane; 22-water separation cover; 23-support seat; 3-cavity; 31-outer wall; 32-inner wall; 33-filling hole; 34-sealing component; 4-inlet component; 5-liquid outlet pipe; 51-valve; 6-outlet component; 61-branch pipeline. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, structure and function of the present invention, the gas-liquid separation device according to the present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, an embodiment of the utility model provides a gas-liquid separation device 100, comprising an upper cavity 1, and a lower cavity 2 connected to the upper cavity 1. The upper cavity 1 and the lower cavity 2 are both configured to have an open end and a closed end, and can be connected together by docking their respective open ends, thereby forming a hollow chamber 10. The chamber 10 can have any shape that facilitates the flow of the gas-liquid mixture. In this embodiment, the chamber 10 is elliptical as a whole.

[0028] The upper cavity 1 and the lower cavity 2 are both double-layer structures with an outer wall 31 and an inner wall 32, and a cavity 3 is formed between the inner wall 32 and the outer wall 31. According to the utility model, any medium that can achieve a low-temperature environment can be filled in the cavity 3. According to this embodiment, the medium is liquid nitrogen. By filling the cavity 3 with liquid nitrogen, a low-temperature processing environment is formed in the hollow chamber 10 formed by the upper cavity 1 and the lower cavity 2, so that the water molecules and oil molecules in the entire chamber 10 are cooled at low temperatures, which is helpful for outputting dry gas.

[0029] like Figure 1 As shown, an oil filter assembly 20 is disposed inside the lower cavity 2. The oil filter assembly 20 includes a plurality of oil filter membranes 21 disposed in the lower cavity 2 and spaced apart from each other. In the illustrated embodiment, the oil filter assembly 20 includes two oil filter membranes 21, both of which are arranged in an arc shape, with the arc opening facing downward. In order to install these oil filter membranes 21, a corresponding curved insert structure 12 is disposed on the inner wall of the lower cavity 2, as shown in FIG. Figure 2 As shown. The ends of each oil filter membrane 21 are installed in the curved insert structure 12, so as to form a secure installation. Specifically, the side wall of the curved insert structure 12 is provided with a thread, and the thread is adapted to the thread provided at the edge of the oil filter membrane 21, so that the oil filter membrane 21 is fixed in the curved insert structure 12 through thread matching, and then the oil filter membrane 21 is fixedly provided in the lower cavity 2.

[0030] In one embodiment, the oil filter membrane 21 is constructed as a metal wire mesh filled with oil filter cotton. Figure 3 As shown, the bottom of the oil filter membrane 21 (i.e., the portion facing the closed end of the lower chamber 21) is formed with undulating curved grooves. In this way, the contact area between the oil filter membrane 21 and the gas-liquid mixture inside the chamber 10 is increased, thereby achieving a more sufficient oil filtering effect.

[0031] At the same time, according to the utility model, through the design of the multi-layer oil filter membrane, the gas-liquid mixture entering the chamber 10 can be subjected to multi-layer oil filtering treatment, which greatly reduces the oil content in the gas-liquid mixture. In addition, through the arc-shaped oil filter membrane 21, the resistance of the gas-liquid mixture flow can be reduced, the circulation speed of the gas-liquid mixture in the chamber 10 can be accelerated, and the processing efficiency can be improved.

[0032] like Figure 1 As shown, a water filter assembly 13 is arranged inside the upper cavity 1. The water filter assembly 13 includes a plurality of water filter membranes 14 arranged in the upper cavity 1 and spaced apart from each other. In the illustrated embodiment, the water filter assembly 13 includes three water filter membranes 14, which are all arranged in an arc shape, and the arc openings face upward. In order to install these water filter membranes 14, a corresponding curved insert structure is also arranged on the inner wall of the upper cavity 1, which has the same Figure 2The ends of each water filter membrane are similarly mounted into the bent plug structure to form a secure installation.

[0033] In one embodiment, the water filter membrane 14 is constructed as a metal wire mesh filled with water filter cotton. Preferably, each water filter membrane 14 is provided with a through hole at the bottom. In this way, the mixed fluid formed by filtering the water filter membrane can drip downward through the through hole formed at the bottom of the water filter membrane 14, thereby avoiding liquid accumulation and accelerating the gas-liquid separation efficiency.

[0034] At the same time, according to the utility model, through the design of the multi-layer water filter membrane, the gas-liquid mixture entering the chamber 10 can be filtered for multiple times, which greatly reduces the water content in the gas-liquid mixture. In addition, through the arc-shaped water filter membrane 14, the resistance of the gas-liquid mixture flow can be reduced, the circulation speed of the gas-liquid mixture in the chamber 10 can be accelerated, and the processing efficiency can be improved.

[0035] like Figure 1 As shown, an air intake component 4 connected to the chamber 10 is provided at the closed end of the lower cavity 2 for receiving the gas-liquid mixture to be processed. According to the utility model, the air intake component 4 can be designed into any shape that facilitates the circulation of the gas-liquid mixture. In the illustrated embodiment, the air intake component 4 is a hollow circular tubular structure, wherein the hollow portion forms a flow channel. The air intake component 4 extends in the chamber 10 and is bent at least 90 degrees below the oil filter assembly. In this way, the technical problem of impurities contained in the liquid or the gas-liquid mixture falling into the air intake component 4 and clogging the air intake component 4 is effectively avoided.

[0036] In one embodiment, the portion of the gas inlet component 4 located outside the chamber 10 can be selectively connected to a supply pipeline (not shown in the figure) for introducing the gas-liquid mixture to be treated transported in the supply pipeline into the chamber 10 .

[0037] According to a preferred embodiment of the present invention, Figure 1 As shown, the lower cavity 2 also includes a water separation cover 22 arranged above the oil filter assembly, which is used to separate the water contained in the gas-liquid mixture entering the chamber 10.

[0038] In one embodiment, at least one filling hole 33 communicating with the cavity 3 is provided on the outer wall of the upper cavity 1 and the lower cavity 2. In the illustrated embodiment, two filling holes 33 communicating with the cavity 3 are provided on the outer wall of the upper cavity 1 and the lower cavity 2, and the filling holes 33 are communicated with the interior of the cavity 3, so that liquid nitrogen can be filled into the interior of the cavity 3 through the filling holes 33. Thus, a low-temperature processing environment can be formed in the hollow chamber 10, so that the water molecules and oil molecules in the entire chamber 10 are cooled at low temperature, which is helpful for outputting dry gas.

[0039] In one embodiment, a sealing component 34 adapted to the opening of the filling hole 33 is also provided at the opening of the filling hole 33. In the illustrated embodiment, the sealing component 34 is used to block the opening of the filling hole 33, so that the cavity 3 forms a closed space. When it is necessary to fill the cavity 3 with liquid nitrogen, the sealing component 34 is removed and the liquid nitrogen is filled into the cavity 3. When the filling is completed, the sealing component 34 is reinstalled at the opening of the filling hole 33 to complete the sealing of the cavity 3.

[0040] like Figure 1 As shown, a gas outlet component 6 connected to the chamber 10 is provided at the closed end of the upper cavity 1. According to the utility model, the gas outlet component 6 can be designed into any shape that is convenient for gas circulation. In the illustrated embodiment, the gas outlet component includes a hollow tubular structure whose diameter gradually decreases in a direction away from the upper cavity 1, and a branch pipeline 61 for flushing connected to the hollow tubular structure.

[0041] In one embodiment, the gas outlet component 6 is used to output the gas filtered in the chamber 10 to the next process. The branch pipeline 61 is used to add a substance for flushing the chamber 10, which is injected into the chamber 10 through the gas outlet component 6, thereby cleaning each water filter membrane and oil filter membrane of the water filter component and the oil filter component, so that the entire chamber 10 is cleaned and purified.

[0042] like Figure 1 As shown, a liquid outlet pipe 5 connected to the chamber 10 is also provided at the closed end of the lower cavity 2. According to the utility model, the liquid outlet pipe 5 can be designed to be any shape that facilitates the liquid to flow out of the chamber 10. In the illustrated embodiment, the liquid outlet pipe 5 is configured such that its diameter gradually decreases in a direction away from the lower cavity 2.

[0043] In one embodiment, the liquid outlet pipe 5 is used to discharge the liquid separated inside the chamber 10. Preferably, a valve 51 is provided on the liquid outlet pipe 5, which is used to open or close the liquid outlet pipe 5, so that the mixed fluid can be discharged through the liquid outlet pipe 5, or the mixed fluid can be accumulated at the liquid outlet pipe 5 and discharged after a certain period of time.

[0044] To facilitate installation, Figure 1 As shown, a hanging ear 11 is provided on the outer surface of the upper cavity 1. In the illustrated embodiment, there are two hanging ears 11, which are provided on the outer surface of the upper cavity 1 near the upper end, and are used to provide a fulcrum for the gas-liquid separation device to be easily fixed.

[0045] like Figure 1As shown, a support seat 23 is provided on the outer surface of the lower cavity 2. According to the utility model, the support seat 23 can be designed to be any shape fixed on the outer surface of the lower cavity 2. In the illustrated embodiment, the support seat 23 is a protrusion arranged around the outer surface of the lower cavity 2, which is used to further provide a fulcrum for the gas-liquid separation device to be easily fixed.

[0046] When in use, the portion of the air inlet component 4 located outside the chamber 10 is connected to a supply pipeline (not shown in the figure), so that the gas-liquid mixture transported in the supply pipeline is introduced into the interior of the chamber 10. At the same time, the air outlet component 6 is connected to a component of the next process (not shown in the figure), and the component of the next process can provide a negative pressure force for the chamber 10.

[0047] like Figure 1 As shown, after the gas-liquid mixture passes through the air inlet component 4 and reaches the chamber 10 , the gas-liquid mixture will continue to rise inside the chamber 10 due to the upward negative pressure force.

[0048] According to the utility model, the gas-liquid mixture passes upward through several layers of oil filter membranes 21, and each layer of oil filter membranes 21 can filter the oil molecules contained in the gas-liquid mixture. At the same time, through the multiple layers of oil filter membranes 21 with grooves at the bottom, the contact area between the gas-liquid mixture and the oil filter membranes 21 can be increased, so that the oil contained in the gas-liquid mixture can be filtered more fully.

[0049] After passing through the multi-layer oil filter membrane 21, the gas-liquid mixture continues to rise and reaches the water separation hood 22. The water in the gas-liquid mixture is separated by the water separation hood 22. The resulting mixed fluid flows downward along the gaps between the oil filter membranes 21 and the inner wall of the lower cavity 2 until it reaches the liquid outlet pipe 5. The liquid outlet pipe 5 can be opened or closed by the valve 51 provided in the liquid outlet pipe 5, so that the mixed fluid can be discharged through the liquid outlet pipe 5, or the mixed fluid can be accumulated at the liquid outlet pipe 5 and discharged in a concentrated manner after a certain period of time.

[0050] The gas-liquid mixture passing through the water-dividing cover 22 continues to rise in the chamber 10 and enters the water filter assembly. The multi-layer water filter membrane 14 in the water filter assembly can filter the water molecules contained in the gas-liquid mixture multiple times. The filtered water moves downward along the through hole in the middle of the water filter membrane 14 and the gap between the water filter membrane 14 until it reaches the liquid outlet pipe 5.

[0051] Since the cavity 3 formed by the double-wall structure of the upper cavity 1 and the lower cavity 2 is filled with liquid nitrogen, the interior of the chamber 10 forms a low-temperature environment as a whole, so that the water molecules and oil molecules in the entire chamber 10 are cooled at low temperatures, which helps to output dry gas. The fluid after passing through the water filter component 13 is discharged through the gas outlet component 6.

[0052] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A gas-liquid separation device, characterized in that: The invention comprises an upper cavity (1) and a lower cavity (2) connected to the upper cavity (1), wherein the upper cavity (1) and the lower cavity (2) together form a hollow chamber (10), and ends of the lower cavity (2) and the upper cavity (1) are respectively provided with an air inlet component (4) and an air outlet component (6), a water filter component (13) is provided inside the upper cavity (1), and an oil filter component (20) is provided inside the lower cavity (2), The water filter assembly (13) comprises a group of arc-shaped water filter membranes (14) spaced apart from each other, and the oil filter assembly (20) comprises a group of arc-shaped oil filter membranes (21) spaced apart from each other, wherein the openings of the arc-shaped water filter membranes (14) face upwards and the openings of the arc-shaped oil filter membranes (21) face downwards.

2. The gas-liquid separation device according to claim 1, characterized in that: A plurality of curved structures (12) are provided on the inner walls of the upper cavity (1) and the lower cavity (2) for mounting the ends of the arc-shaped water filter membrane (14) and the arc-shaped oil filter membrane (21).

3. The gas-liquid separation device according to claim 2, characterized in that: The end surface of each oil filter membrane (21) close to the air intake component is formed with a plurality of undulating grooves, and the bottom of each water filter membrane (14) is provided with a through hole.

4. The gas-liquid separation device according to any one of claims 1 to 3, characterized in that: The air intake component (4) extends through the lower cavity (2) to enter the chamber (10), and is bent at least 90 degrees below the oil filter assembly (20).

5. The gas-liquid separation device according to any one of claims 1 to 3, characterized in that: The lower cavity (2) further comprises a water separation cover (22) arranged above the oil filter assembly (20).

6. The gas-liquid separation device according to any one of claims 1 to 3, characterized in that: The upper cavity (1) and the lower cavity (2) are both double-layer structures having an inner wall (32) and an outer wall (31), a cavity (3) is formed between the inner wall (32) and the outer wall (31), and the outer walls of the upper cavity (1) and the lower cavity (2) are provided with at least one filling hole (33) connected to the cavity (3) for filling the cavity (3) with a substance capable of condensing the cavity.

7. The gas-liquid separation device according to any one of claims 1 to 3, characterized in that: The gas outlet component (6) comprises a branch pipeline (61) for flushing.

8. The gas-liquid separation device according to any one of claims 1 to 3, characterized in that: The closed end of the lower cavity (2) is provided with a liquid outlet pipe (5) connected to the chamber, and the diameter of the liquid outlet pipe (5) gradually decreases in a direction away from the lower cavity (2).

9. The gas-liquid separation device according to claim 8, characterized in that: The liquid outlet pipe (5) is provided with a valve (51) for opening or closing the liquid outlet pipe (5).

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