A flow measurement device for an intelligent three-phase separation device for oil, gas and water

Abstract

The present application discloses a flow measurement device for an intelligent three-phase separation device for oil, gas and water, which belongs to the field of oil and gas flow measurement and comprises: a reactor and an input pipe connected to the reactor, wherein the input pipe is provided with a flow detection unit, the flow detection unit is used to detect the oil and gas flow through the input pipe, the flow detection unit comprises a pipe wall, a throttle plate installed inside the pipe wall, and a pressure detection device, an oil and gas channel is provided in the middle of the throttle plate, a side of the throttle plate facing away from the oil and gas flow direction is provided with a plurality of flow stabilizing protrusions, the flow stabilizing protrusions are elastic, so that when the hydraulic pressure on the side of the throttle plate facing away from the oil and gas flow direction increases, the flow stabilizing protrusions can shrink toward the inside of the throttle plate, and the present application can accurately detect the oil and gas flow rate.

Description

Technical Field

[0001] The present invention relates to the technical field of flow measurement, and in particular to a flow measurement device for an intelligent three-phase separation device for oil, gas and water. Background Art

[0002] In the process of oil and natural gas extraction, processing and transportation, the treatment of oil, gas and water three-phase mixture is a crucial link. Traditional oil, gas and water three-phase separation technology often has problems such as low separation efficiency, high energy consumption and large environmental pollution. Especially when facing complex and changeable oil, gas and water mixtures, traditional separation methods often find it difficult to achieve ideal separation effects. Therefore, the development of an efficient, energy-saving and environmentally friendly intelligent three-phase separation device for oil, gas and water and its supporting flow measurement device is of great significance for improving the utilization efficiency of oil and gas resources, reducing production costs and reducing environmental pollution.

[0003] In the existing oil, gas and water three-phase separation, a flow detector is used to detect the flow of the oil-gas mixture. Specifically, the pressure difference is used for detection. The inventor found that when the flow rate of the oil-gas mixture is too fast, the error of the flow detector will suddenly increase, affecting the detection accuracy. The inventor concluded that this may be due to the large amount of gas in the mixture.

[0004] At the same time, most of the existing oil, gas and water three-phase separation technologies rely on methods such as gravity sedimentation, centrifugal separation or chemical demulsification. However, these methods often have many limitations in practical applications. For example, although the gravity sedimentation method is simple to operate, the separation efficiency is low, especially for crude oil with low water content or high viscosity. The separation effect is particularly poor; the centrifugal separation method consumes a lot of energy and has high equipment maintenance costs; the chemical demulsification method may introduce new chemical pollution and have a certain impact on the quality of oil products. In addition, the traditional oil, gas and water three-phase separation device also has certain limitations in gas separation. It is often difficult to fully separate the gas in the oil and gas mixture, resulting in excessively high gas content in the subsequent processing process, affecting product quality and subsequent processing efficiency. Therefore, in response to the above technical problems, a flow measurement device for an intelligent oil, gas and water three-phase separation device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a flow measurement device for an intelligent three-phase separation device of oil, gas and water, which can achieve efficient and accurate separation and flow measurement of the three-phase mixture of oil, gas and water by optimizing the separation process and introducing advanced measurement technology.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present application discloses a flow measurement device for an intelligent three-phase separation device for oil, gas and water, comprising:

[0008] A reactor, the outside of which is fixedly connected with an input pipe, and the outside of the reactor is fixedly connected with a gas delivery mechanism;

[0009] A flow detection unit is installed on the input pipe and is used to detect the oil and gas flow passing through the input pipe. The flow detection unit includes a pipe wall, a throttle plate installed inside the pipe wall, and a pressure detection device. An oil and gas channel is provided in the middle of the throttle plate. A side of the throttle plate facing away from the oil and gas flow direction is provided with a plurality of flow stabilizing protrusions. The flow stabilizing protrusions are elastic, so that when the hydraulic pressure on the side of the throttle plate facing away from the oil and gas flow direction increases, the flow stabilizing protrusions can shrink toward the inside of the throttle plate.

[0010] A gas reaction box, the outside of which is fixedly connected with a first gas pipe, the first gas pipe is fixedly connected to the reactor, and the end of the first gas pipe extends into the upper layer of the reactor;

[0011] A gas-liquid separation box is placed on one side of the reactor, the gas-liquid separation box is fixedly connected to a cyclone separator inside, the cyclone separator is fixedly connected to a first liquid extraction pipe outside, the end of the first liquid extraction pipe extends into the reactor, the cyclone separator is provided with a dust discharge port at the bottom, the gas-liquid separation box is fixedly connected to a liquid storage tank inside, and the liquid storage tank is located directly below the dust discharge port, the gas-liquid separation box is fixedly connected to a second gas pipeline outside, and a dust removal mechanism is fixedly installed at the end of the second gas pipeline, and a third gas pipeline is fixedly connected between the dust removal mechanism and the gas reaction box;

[0012] An exhaust gas treatment box, a fourth gas delivery pipe is fixedly connected between the exhaust gas treatment box and the gas reaction box, and a second exhaust pipe is fixedly connected to the outside of the exhaust gas treatment box;

[0013] The centrifuge is placed on one side of the gas-liquid separation box. The outside of the centrifuge is fixedly connected to a second liquid extraction pipe, and the end of the second liquid extraction pipe passes through the outside of the gas-liquid separation box and extends into the bottom of the liquid storage tank. The other side of the centrifuge is fixedly connected to an oil drain pipe and a water drain pipe.

[0014] Preferably, the flow stabilizing protrusion is a flow stabilizing piston, a flow stabilizing cavity is provided inside the throttle plate, the flow stabilizing cavity is connected to a plurality of sliding channels, the sliding channels extend from the flow stabilizing cavity to the back surface of the throttle plate, the flow stabilizing piston is accommodated in the sliding channel and can slide in the sliding channel; a positioning piece is provided on the side of the sliding channel, the positioning piece limits the excessive sliding of the flow stabilizing piston in the sliding channel, so that the end of the flow stabilizing piston is located on the surface of the back of the throttle plate or a more protruding position.

[0015] Preferably, the gas delivery mechanism includes an air blowing device and a connecting pipe, wherein the connecting pipe is fixedly connected to the outside of the reactor, and the end of the connecting pipe penetrates into the inner lower layer of the reactor, and the connecting pipe is fixedly connected to the outside of the air blowing device.

[0016] Preferably, a first gas flow meter is fixedly connected to the outside of the connecting pipe.

[0017] Preferably, a first valve is fixedly installed on the outside of the first liquid extraction pipe.

[0018] Preferably, the dust removal mechanism includes a filter box and a mist collector, the second air pipe is fixedly connected to the filter box, and the end of the second air pipe extends into the filter box, the mist collector is fixedly connected to the upper end of the filter box, and the end of the third air pipe extends into the mist collector.

[0019] Preferably, a second gas flow meter is fixedly installed on the outside of the first gas pipeline and the third gas pipeline.

[0020] Preferably, a first exhaust pipe is fixedly connected to the outside of the gas reaction box.

[0021] Preferably, a second valve is fixedly installed on the outside of the second liquid extraction pipe.

[0022] Preferably, liquid flow meters are fixedly installed on the outside of the oil drain pipe and the water drain pipe.

[0023] Preferably, the first gas flow meter, the second gas flow meter and the liquid flow meter are all connected to the data recording terminal via signals.

[0024] The technical solution of the present invention has at least the following beneficial effects:

[0025] 1. The flow detection unit of the present application can improve the error of oil-gas mixture detection at high flow rate. When the device is used, firstly, the three-phase mixture of oil, gas and water is introduced into the reactor through the input pipe. At this time, the gas mixture floating on the surface will be input into the gas reaction box through the first gas pipe at the top. Then, the gas can be introduced into the oil-water mixture inside the reactor by operating the aeration device. By introducing gas into the mixture, the bubbles are attached to the suspended matter, increasing the buoyancy of the suspended matter, so that it floats to the liquid surface and separates. The bubbles inside the oil-gas mixture can be removed, ensuring that the gas is fully separated, and effectively improving the gas separation efficiency.

[0026] 2. The flow measuring device of the intelligent three-phase separation device for oil, gas and water passes the liquid mixture into the cyclone separator through the first valve. In the cyclone separator, the airflow is guided by the guide blades to generate strong rotation. The liquid droplets and dust particles with high density are thrown to the wall of the device under the centrifugal effect, and fall down along the wall of the cylinder under the action of gravity. The gas separated by the cyclone separator will be transported to the filter box through the second air pipe. At this time, the water droplets or particulate matter suspended in the air can be filtered out by the mist collector, which can further purify the gas.

[0027] 3. The flow measurement device of the intelligent three-phase separation device for oil, gas and water opens the second valve to draw the oil-water mixture in the liquid storage tank into the centrifuge through the second liquid extraction pipe. The centrifuge uses the centrifugal force generated by high-speed rotation to separate the oil and water under the action of centrifugal force, and then discharges them through the oil discharge pipe and the water discharge pipe respectively, and is recorded by the liquid flow meter respectively, so that the specific separation flow of oil, gas and water in the batch mixture can be obtained, which is more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of a flow detection unit;

[0030] Figure 3 is a schematic diagram of a steady flow piston;

[0031] Figure 4 is a schematic diagram of a positioning member;

[0032] Icons: 1. Reactor; 2. Input pipe; 3. Air blowing device; 4. Connecting pipe; 5. First gas flowmeter; 6. Gas reaction box; 7. First gas pipeline; 8. Gas-liquid separation box; 9. Cyclone separator; 10. First liquid extraction pipe; 11. First valve; 12. Dust outlet; 13. Liquid storage tank; 14. Filter box; 15. Second gas pipeline; 16. Mist collector; 17. Third gas pipeline; 18. Second gas flowmeter; 19. First exhaust pipe; 20. Waste gas treatment box; 21. Fourth gas pipeline; 22. Second exhaust pipe; 23. Centrifuge; 24. Second liquid extraction pipe; 25. Second valve; 26. Oil drain pipe; 27. Drain pipe; 28. Liquid flowmeter; 29. ​​Data recording terminal, 30-Flow detection unit, 31-Throttle plate, 32-Flow stabilization chamber, 33-Sliding channel, 34-Flow stabilization piston, 35-Pressure detection device, 36-Positioning member. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Example 1

[0035] See also Figure 1 The present application proposes a flow measurement device for an intelligent three-phase oil-gas-water separation device, comprising a reactor 1, a gas reaction box 6, a gas-liquid separation box 8, an exhaust gas treatment box 20 and a centrifuge 23. The reactor 1 is externally fixedly connected with an input pipe 2, through which the three-phase oil-gas-water mixture can be introduced into the reactor 1. More specifically, Figure 2 As shown, a flow detection unit 30 is installed on the input pipe 2. The flow detection unit 30 is a differential pressure flow meter, and the flow detection unit 30 is used to detect the oil and gas flow through the input pipe 2. The flow detection unit 30 includes a pipe wall, a throttle plate 31 installed inside the pipe wall, and a pressure detection device 35. The pressure detection device 35 is an existing technology, which calculates the flow rate according to the change of the pressure difference.

[0036] In a more specific solution, the thickness of the throttle plate 31 is about 10% of the diameter of the pipeline, and an oil-gas passage is provided in the middle for the oil-gas mixture to pass through, and the edge of the throttle plate is used to block the oil-gas mixture. Figure 3 As shown, the throttle plate 31 is provided with a plurality of flow-stabilizing protrusions on the side (back side) facing away from the oil and gas flow direction. The flow-stabilizing protrusions are elastic, so that when the hydraulic pressure on the side of the throttle plate 31 facing away from the oil and gas flow direction increases, the flow-stabilizing protrusions can shrink toward the inside of the throttle plate 31. In a more specific solution, the flow-stabilizing protrusions are flow-stabilizing pistons 34, and the throttle plate 31 is provided with a flow-stabilizing cavity 32. The flow-stabilizing cavity 32 is connected to a plurality of sliding channels 33, and the diameter of the sliding channel 33 is about 5% of the diameter of the oil and gas pipeline. The height of the flow-stabilizing piston 34 protruding from the back side of the throttle plate 31 is about 3%-5% of the diameter of the oil and gas pipeline. The sliding channel 33 extends from the flow-stabilizing cavity 32 to the back surface of the throttle plate 31, and the flow-stabilizing piston 34 is accommodated in the sliding channel 33 and can slide in the sliding channel 33.

[0037] In more specific solutions, such as Figure 4As shown, a positioning member 36 is provided on the side of the sliding channel 33, and the positioning member 36 limits the excessive sliding of the flow stabilizing piston 34 in the sliding channel 33, so that the end of the flow stabilizing piston 34 is located on the surface of the back of the throttle plate 31 or a more protruding position. The inventor found that the flow detection unit of the present invention can reduce the error by about 70%. When the oil and gas flow rate is high, the flow stabilizing piston 34 can fully mix the oil and gas on its surface to reduce the error caused by pressure detection, and when the oil and gas flow rate is large, the flow stabilizing piston 34 can fully shrink to reduce excessive turbine losses at the edge under high flow rate.

[0038] More specifically, the outside of the reactor 1 is fixedly connected to a gas delivery mechanism; the outside of the gas reaction box 6 is fixedly connected to a first gas delivery pipe 7, and the first gas delivery pipe 7 is fixedly connected to the reactor 1, and the end of the first gas delivery pipe 7 extends into the upper part of the reactor 1. When the oil-gas-water mixture is stationary in the reactor 1, the first gas delivery pipe 7 automatically passes the gas suspended in the upper layer into the gas reaction box 6, and the gas reaction box 6 can perform a series of gas treatments; the gas-liquid separation box 8 is placed on one side of the reactor 1, and the inside of the gas-liquid separation box 8 is fixedly connected to a cyclone separator 9, and the cyclone separator 9 can further separate the oil-water mixture from the residual gas therein, and the outside of the cyclone separator 9 is fixedly connected to a first liquid extraction pipe 10, and the end of the first liquid extraction pipe 10 extends into the interior of the reactor 1, and a dust exhaust port 12 is provided at the bottom of the cyclone separator 9. It is connected to a liquid storage tank 13, and the liquid storage tank 13 is located directly below the dust outlet 12. The liquid storage tank 13 can store the oil-water mixture of the discharged residual gas. The outside of the gas-liquid separation box 8 is fixedly connected with a second air pipe 15, and a dust removal mechanism is fixedly installed at the end of the second air pipe 15, and a third air pipe 17 is fixedly connected between the dust removal mechanism and the gas reaction box 6; a fourth air pipe 21 is fixedly connected between the waste gas treatment box 20 and the gas reaction box 6, and a second exhaust pipe 22 is fixedly connected to the outside of the waste gas treatment box 20; a centrifuge 23 is placed on one side of the gas-liquid separation box 8, and the outside of the centrifuge 23 is fixedly connected with a second liquid extraction pipe 24, and the end of the second liquid extraction pipe 24 passes through the outside of the gas-liquid separation box 8 and extends into the bottom of the liquid storage tank 13. The centrifuge 23 can separate the oil and water in the liquid by high-speed rotation, and the other side of the centrifuge 23 is fixedly connected with an oil discharge pipe 26 and a water discharge pipe 27.

[0039] The gas delivery mechanism includes an air blowing device 3 and a connecting pipe 4, wherein the connecting pipe 4 is fixedly connected to the outside of the reactor 1, and the end of the connecting pipe 4 penetrates into the inner lower layer of the reactor 1, and the connecting pipe 4 is fixedly connected to the outside of the air blowing device 3, wherein the air blowing device 3 can pass gas into the reactor 1 through the connecting pipe to eliminate bubbles.

[0040] The outside of the connecting pipe 4 is fixedly connected with a first gas flow meter 5, and the first gas flow meter 5 can accurately calculate and measure the flow rate of the incoming gas.

[0041] A first valve 11 is fixedly installed on the outside of the first liquid extraction pipe 10 . By operating the first valve 11 , the oil-water mixture from which bubbles have been removed can be passed into the cyclone separator 9 .

[0042] The dust removal mechanism includes a filter box 14 and a mist collector 16. The second air pipe 15 is fixedly connected to the filter box 14, and the end of the second air pipe 15 extends into the filter box 14. The gas separated by the cyclone separator 9 will enter the filter box 14 through the second air pipe 15. The mist collector 16 is fixedly connected to the upper end of the filter box 14, and the end of the third air pipe 17 extends into the mist collector 16. The mist collector 16 can filter the moisture and dust in its body.

[0043] A second gas flow meter 18 is fixedly installed outside the first gas pipeline 7 and the third gas pipeline 17 . The second gas flow meter 18 can accurately calculate and monitor the gas flow passing through the first gas pipeline 7 and the third gas pipeline 17 .

[0044] The outside of the gas reaction box 6 is fixedly connected with a first exhaust pipe 19, and the first exhaust pipe 19 can discharge the processed energy gas for secondary utilization.

[0045] A second valve 25 is fixedly installed on the outside of the second liquid pumping pipe 24 , and the second valve 25 can be used to control the second liquid pumping pipe 24 to pump the oil-water mixture in the liquid storage tank 13 into the centrifuge 23 .

[0046] Liquid flow meters 28 are fixedly installed on the outside of the oil discharge pipe 26 and the water discharge pipe 27. The liquid flow meters 28 can accurately calculate the specific values ​​of the oil and water flow discharged after separation.

[0047] The first gas flow meter 5, the second gas flow meter 18 and the liquid flow meter 28 are all connected to the data recording terminal 29, and the data recording terminal 29 can receive, calculate, record and analyze data.

[0048] The working principle of the flow measurement device of the intelligent three-phase separation device of oil, gas and water based on the embodiment is that when the device is used, the three-phase mixture of oil, gas and water is first introduced into the reactor 1 through the input pipe 2, and the gas mixture floating on the surface is then input into the gas reaction box 6 through the first gas pipe 7 at the top, and then the gas can be introduced into the oil-water mixture in the reactor 1 by operating the aeration device 3. By introducing gas into the mixture, the bubbles are attached to the suspended matter, the buoyancy of the suspended matter is increased, and the suspended matter floats to the liquid surface and is separated, so that the bubbles in the oil-gas mixture can be removed, the gas is fully separated, and the gas separation efficiency is effectively improved;

[0049] After the bubbles of the liquid mixture inside the reactor 1 are removed, the liquid mixture can be introduced into the cyclone separator 9 through the first valve 11. In the cyclone separator 9, the airflow is guided by the guide blades to generate strong rotation. The liquid droplets and dust particles with high density are thrown to the wall of the device under the centrifugal effect, and fall down along the cylinder wall under the action of gravity, and fall into the liquid storage tank 13 at the bottom through the dust outlet 12. The gas separated by the cyclone separator 9 will be transported to the filter box 14 through the second air supply pipe 15. At this time, the water droplets or particulate matter suspended in the air can be filtered out by the mist collector 16 to further purify the gas. Then, the purified gas is introduced into the gas reaction box through the third air supply pipe 17. 6 is compressed, condensed, evolved and other steps are carried out to convert it into usable energy or materials, and the waste gas generated can be passed through the fourth gas pipeline 21 into the waste gas treatment box 20 for purification treatment, and then discharged from the second exhaust pipe 22, so that it is convenient to filter out the residual gas inside the oil-water mixture, so that the gas separation efficiency is further improved, and the separated gas can be fully filtered and purified for subsequent treatment, which is more convenient. In this process, the sum of the data recorded by the second gas flowmeter 18 outside the first gas pipeline 7 and the third gas pipeline 17 minus the data recorded by the first gas flowmeter 5 outside the connecting pipe 4 is the gas flow inside the batch of oil-gas-water mixture, which is more intuitive;

[0050] Next, the oil-water mixture in the liquid storage tank 13 can be pumped into the centrifuge 23 through the second pumping pipe 24 by opening the second valve 25. The centrifuge 23 uses the centrifugal force generated by the high-speed rotation to separate the oil and water under the action of centrifugal force, and then discharged through the oil discharge pipe 26 and the water discharge pipe 27 respectively, and recorded by the liquid flow meter 28 respectively, so that the specific separation flow of oil, gas and water in the batch mixture can be obtained, which is more intuitive.

[0051] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flow measurement device for an intelligent three-phase separation device for oil, gas and water, characterized in that: include: A reactor (1) having an input pipe (2) fixedly connected to its exterior, and a gas delivery mechanism fixedly connected to the exterior of the reactor (1); A flow detection unit (30) is mounted on the input pipe (2) and is used to detect the oil and gas flow rate passing through the input pipe (2). The flow detection unit comprises a pipe wall, a throttle plate (31) mounted inside the pipe wall, and a pressure detection device (35). An oil and gas channel is provided in the middle of the throttle plate (31). A surface of the throttle plate (31) facing away from the oil and gas flow direction is provided with a plurality of flow stabilizing protrusions. The flow stabilizing protrusions are elastic, so that when the hydraulic pressure on the surface of the throttle plate (31) facing away from the oil and gas flow direction increases, the flow stabilizing protrusions can shrink toward the inside of the throttle plate (31); A gas reaction box (6), the outside of which is fixedly connected to a first gas pipe (7), the first gas pipe (7) and the reactor (1) are fixedly connected, and the end of the first gas pipe (7) extends into the upper layer of the reactor (1); A gas-liquid separation box (8) is placed on one side of the reactor (1), the gas-liquid separation box (8) is fixedly connected to a cyclone separator (9) inside, the cyclone separator (9) is fixedly connected to a first liquid extraction pipe (10) outside, the end of the first liquid extraction pipe (10) extends into the reactor (1), the bottom of the cyclone separator (9) is provided with a dust discharge port (12), the gas-liquid separation box (8) is fixedly connected to a liquid storage tank (13), and the liquid storage tank (13) is located directly below the dust discharge port (12), the gas-liquid separation box (8) is fixedly connected to a second gas supply pipe (15) outside, and a dust removal mechanism is fixedly installed at the end of the second gas supply pipe (15), and a third gas supply pipe (17) is fixedly connected between the dust removal mechanism and the gas reaction box (6); An exhaust gas treatment box (20) having a fourth gas delivery pipe (21) fixedly connected to the gas reaction box (6), and a second exhaust pipe (22) fixedly connected to the outside of the exhaust gas treatment box (20); A centrifuge (23) is placed on one side of the gas-liquid separation box (8); a second liquid extraction pipe (24) is fixedly connected to the outside of the centrifuge (23); and a terminal end of the second liquid extraction pipe (24) passes through the outside of the gas-liquid separation box (8) and extends into the bottom of the liquid storage tank (13); and an oil discharge pipe (26) and a water discharge pipe (27) are fixedly connected to the other side of the centrifuge (23); The flow stabilizing protrusion is a flow stabilizing piston (34); a flow stabilizing cavity (32) is provided inside the throttle plate (31); the flow stabilizing cavity (32) is connected to a plurality of sliding channels (33); the sliding channels (33) extend from the flow stabilizing cavity (32) to the back surface of the throttle plate (31); the flow stabilizing piston (34) is accommodated in the sliding channel (33) and is capable of sliding in the sliding channel (33); A positioning member (36) is provided on the side of the sliding channel (33), and the positioning member (36) limits excessive sliding of the flow stabilizing piston (34) in the sliding channel (33), so that the end of the flow stabilizing piston (34) is located on the surface of the back side of the throttle plate (31) or at a more protruding position.

2. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 1 is characterized in that: The gas delivery mechanism comprises an air blowing device (3) and a connecting pipe (4), wherein the connecting pipe (4) is fixedly connected to the outside of the reactor (1), and the end of the connecting pipe (4) extends into the inner lower layer of the reactor (1), and the connecting pipe (4) is fixedly connected to the outside of the air blowing device (3).

3. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 2 is characterized in that: A first valve (11) is fixedly mounted on the outside of the first liquid extraction pipe (10).

4. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 3 is characterized in that: The dust removal mechanism comprises a filter box (14) and a mist collector (16); the second air supply pipe (15) is fixedly connected to the filter box (14), and the end of the second air supply pipe (15) extends into the filter box (14); the mist collector (16) is fixedly connected to the upper end of the filter box (14), and the end of the third air supply pipe (17) extends into the mist collector (16).

5. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 4 is characterized in that: A second gas flow meter (18) is fixedly mounted on the outside of the first gas delivery pipe (7) and the third gas delivery pipe (17).

6. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 5 is characterized in that: The outside of the gas reaction box (6) is fixedly connected to a first exhaust pipe (19).

7. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 6 is characterized in that: A second valve (25) is fixedly mounted on the outside of the second liquid extraction pipe (24).

8. The flow measurement device of the oil-gas-water intelligent three-phase separation device according to claim 7 is characterized in that: Liquid flow meters (28) are fixedly mounted on the outside of the oil drain pipe (26) and the water drain pipe (27).

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