Oil-gas-water three-phase metering device

Abstract

The invention relates to the technical field of metering devices, and discloses an oil-gas-water three-phase metering device which comprises a base, a separation tank is fixedly installed on the upper surface of the base, a liquid inlet pipe is fixedly installed on the end face of one end of the separation tank, and one end of the liquid inlet pipe penetrates through the inner wall of the separation tank to be communicated with the interior of the separation tank. An exhaust pipe is fixedly mounted at the top, close to the other end, of the separation tank. After oil and water in liquid in the separation tank are separated, the density of the floating plate is smaller than that of water and larger than that of oil, so that the floating plate can float on the surface of the water according to the water volume, and when more water exists in the oil-gas-water mixed liquid, the floating plate can float to drive the sliding plate to float, so that the oil-water separation position is heightened, and the oil-water separation effect is improved. By means of the device, the oil-water separation height can be automatically increased when water in oil-gas-water mixed liquid is too much, water is prevented from overflowing into the oil outlet pipe, and the accuracy of follow-up oil-water metering and weighing is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of metering devices, and in particular to an oil-gas-water three-phase metering device. Background Art

[0002] Indoor core displacement simulation experiments are often conducted in the oil and gas industry to study the flow patterns of oil and gas in reservoirs, providing a scientific basis for accurately grasping the production dynamics of oil and gas wells, formulating development plans and potential tapping measures, etc. In such displacement experiments, the output fluid is often a three-phase mixture of oil, gas and water. In order to study the seepage patterns of multiphase fluids in the core, it is necessary to measure the output of each phase of fluid in real time at the outlet.

[0003] The existing oil, gas and water three-phase automatic metering device (Announcement No.: CN210400464U) has at least the following disadvantages:

[0004] When the above patent is in use, the oil, gas and water mixed liquid is separated and measured, and the oil, gas and water are separated thoroughly to ensure the accuracy of the measurement. Since the three-dimensional content of oil, gas and water is unstable, sometimes the water content is high and sometimes the oil content is high, the height of the oil-water separation plate in the above patent is fixed. When the water content is high, the drain pipe is not drained in time, causing water to overflow from the oil-water separation plate and enter the oil drain pipe, affecting the accuracy of subsequent oil and water metering and weighing. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an oil-gas-water three-phase metering device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The lip-locking valve is connected with the valve body through the top of the valve body, and the bottom of the valve body is connected with the valve body by the hydraulic press.

[0008] As a further solution of the present invention, an air filter box is fixedly installed on the top wall of the separation tank, the bottom end of the exhaust pipe passes through the inner wall of the separation tank and is arranged inside the air filter box, an air inlet nozzle is provided at one end of the air filter box, and a gas flow meter is provided on the outer surface of the air inlet nozzle, an air guide pipe is fixedly installed on the lower surface of the air filter box, the bottom end of the air guide pipe passes through the outer surface of the oil-water isolation plate and is arranged inside the water outlet pipe, and a plurality of air holes are evenly penetrated on the circumferential outer surface of the air guide pipe close to the water outlet pipe.

[0009] As a further solution of the present invention, the top end of the air duct passes through the bottom wall of the air filter box and is provided with a conical hole, a support rod is fixedly installed on the upper surface of the slide plate, the top end of the support rod passes through the outer surface of the air filter box and is slidably installed therewith, and a conical plug is fixedly installed on the top end of the support rod, and the conical plug is matched with the conical hole.

[0010] As a further solution of the present invention, two limiting sliding bars are symmetrically fixedly installed on the inner walls on opposite sides of the separation tank, and a plurality of surge-proof plates are equidistantly slidably installed between the two limiting sliding bars. Connecting rods are fixedly connected between the plurality of surge-proof plates, and a plurality of grille holes are penetrated through the outer surfaces of the plurality of surge-proof plates. The surge-proof plates are arranged on the inner wall of the separation tank near one end of the liquid inlet pipe.

[0011] As a further scheme of the present invention, a first support is fixedly installed on the inner wall of the separation tank near one end of the liquid inlet pipe, a baffle is rotatably installed between the inner walls of the first support, and the baffle is arranged at the liquid outlet end of the liquid inlet pipe, a second support is fixedly installed on the top wall of the separation tank, a lift rod is rotatably installed between the inner walls of the second support, a first guide groove is penetrated through the outer surface of the lift rod near the top end, and the baffle consists of a top vertical plate and a bottom inclined plate.

[0012] As a further solution of the present invention, a driving rod is fixedly installed on the outer surface of the baffle away from the liquid inlet pipe, a first guide column is fixedly installed on the top of the driving rod, the first guide column is slidably installed on the inner wall of the first guide groove, a connecting spring is fixedly installed on the bottom end of the tilting rod, a movable block is fixedly connected to the bottom end of the connecting spring, a second guide groove is penetrated through the outer surface of the movable block near the bottom end, a supporting block is fixedly installed on the outer surface of the connecting rod, a second guide column is fixedly installed on the top of the supporting block, and the second guide column is slidably installed on the inner wall of the second guide groove.

[0013] As a further solution of the present invention, a water receiving box is fixedly mounted on the upper surface of the base, and an oil receiving box is also fixedly mounted on the upper surface of the base. The water receiving box is arranged directly below the water outlet pipe, and the oil receiving box is arranged directly below the oil outlet pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. After the oil and water in the separation tank are separated, the density of the floating plate is smaller than that of water but larger than that of oil, so the floating plate will float on the surface of the water according to the amount of water. When there is more water in the oil-gas-water mixed liquid, the floating plate will float up and drive the slide plate to float up, thereby raising the position of the oil-water separation. This device can automatically increase the height of the oil-water separation when there is more water in the oil-gas-water mixed liquid, thus avoiding water overflowing into the oil outlet pipe and ensuring the accuracy of subsequent oil and water metering and weighing;

[0016] 2. The oil-gas-water mixture impacts the outer surface of the baffle plate, causing the baffle plate to swing. When the impact force is large, the surge plate moves in the direction of the liquid inlet pipe with greater force, thereby offsetting the impact force of the oil-gas-water mixture falling into the separation tank, which greatly reduces the surge of the liquid inside the separation tank, ensuring that the water after oil-water separation will not surge to the position of the oil outlet pipe, avoiding affecting the subsequent measurement and weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an oil, gas and water three-phase metering device proposed by the present invention;

[0018] Figure 2 This is a rear structural schematic diagram of an oil, gas and water three-phase metering device proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of an oil, gas and water three-phase metering device proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of an oil-gas-water three-phase metering device proposed by the present invention when viewed from above;

[0021] Figure 5 A schematic diagram of a surge prevention plate of an oil, gas and water three-phase metering device proposed by the present invention;

[0022] Figure 6 A schematic diagram of an oil-water separation plate of an oil-gas-water three-phase metering device proposed by the present invention;

[0023] Figure 7 A schematic diagram of a baffle plate of an oil-gas-water three-phase metering device proposed in the present invention.

[0024] In the figure: 1. base; 2. separation tank; 3. liquid inlet pipe; 4. exhaust pipe; 5. water outlet pipe; 6. oil outlet pipe; 7. water receiving box; 8. oil receiving box; 9. baffle; 901. first support; 10. second support; 11. drive rod; 1101. first guide groove; 1102. first guide column; 12. limit slide bar; 13. surge plate; 14. connecting rod; 15. connecting spring; 16. movable block; 17. tilting rod; 18. support block; 1801. second guide column; 1802. second guide groove; 19. oil-water isolation plate; 1901. slide groove; 20. air guide pipe; 21. air filter box; 22. air inlet nozzle; 23. floating plate; 24. slide plate; 25. support rod; 26. conical plug; 27. conical hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figure 1-Figure 7, an oil-gas-water three-phase metering device comprises a base 1, a separation tank 2 is fixedly mounted on the upper surface of the base 1, a transparent observation window is arranged on the outer surface of the separation tank 2, and the liquid separation situation inside the separation tank 2 can be observed by naked eyes, a liquid inlet pipe 3 is fixedly mounted on the end surface of one end of the separation tank 2, one end of the liquid inlet pipe 3 passes through the inner wall of the separation tank 2 and is connected with the interior thereof, an exhaust pipe 4 is fixedly mounted on the top of the separation tank 2 near the other end, and the exhaust pipe 4 is connected with the interior of the separation tank 2, a water outlet pipe 5 is fixedly mounted on the bottom of the separation tank 2 near the other end, an oil outlet pipe 6 is also fixedly mounted on the bottom of the separation tank 2 near the other end, an oil-water isolation plate 19 is fixedly mounted on the inner wall of the separation tank 2, a slide groove 1901 is provided inside the oil-water isolation plate 19, and the slide groove 1901 A slide plate 24 is slidably installed on the inner wall, and an oil-water isolation plate 19 is arranged between the oil outlet pipe 6 and the water outlet pipe 5. An opening is opened on the outer surface of the oil-water isolation plate 19 close to the water outlet pipe 5. A floating plate 23 is slidably installed on the inner wall of the opening. One end of the floating plate 23 passes through the opening and is fixedly connected to the bottom end of the slide plate 24. The oil outlet pipe 6 and the water outlet pipe 5 are connected to the interior of the separation tank 2. A mechanical reagent mixing generator is arranged at the inlet end of the liquid inlet pipe 3. The reagent added to the separation tank 2 is quantitatively controlled by the mechanical reagent mixing generator to facilitate the separation of oil, gas and water. The liquid enters the pipe 3. An electromagnetic valve is installed at the end of the liquid inlet pipe 3. The amount of mixed liquid entering the separation tank 2 per unit time is controlled by the electromagnetic valve to prevent excessive addition of the mixed liquid and overflow to the position of the oil outlet pipe 6.

[0029] Since the density of the floating plate 23 is smaller than that of water but larger than that of oil, the floating plate 23 will float on the surface of the water according to the amount of water. When there is more water inside the oil-gas-water mixed liquid, the floating plate 23 will float up and drive the slide plate 24 to float up, thereby raising the position of the oil-water separation. Through this device, the height of the oil-water separation can be automatically increased when there is more water inside the oil-gas-water mixed liquid, thereby avoiding water overflowing into the oil outlet pipe 6 and ensuring the accuracy of subsequent oil and water metering and weighing.

[0030] In this embodiment, an air filter box 21 is fixedly installed on the top wall of the separation tank 2, and the bottom end of the exhaust pipe 4 passes through the inner wall of the separation tank 2 and is arranged in the interior of the air filter box 21. An air inlet nozzle 22 is arranged at one end of the air filter box 21, and a gas flow meter is arranged on the outer surface of the air inlet nozzle 22. The gas separated from the oil-gas-water mixture can be measured and monitored by the gas flow meter. An air guide pipe 20 is fixedly installed on the lower surface of the air filter box 21, and the bottom end of the air guide pipe 20 passes through the outer surface of the oil-water isolation plate 19 and is arranged in the interior of the water outlet pipe 5. A plurality of air holes are evenly penetrated through the circumferential outer surface of the air guide pipe 20 near the water outlet pipe 5, and a conical hole 27 is opened at the top of the air guide pipe 20 through the bottom wall of the air filter box 21. A support rod 25 is fixedly installed on the upper surface of the slide plate 24, and the top end of the support rod 25 passes through the outer surface of the air filter box 21 and is slidably installed therewith, and a conical plug 26 is fixedly installed on the top of the support rod 25, and the conical plug 26 is matched with the conical hole 27.

[0031] The support rod 25 is moved upward by the floating of the slide plate 24, so that the support rod 25 drives the conical plug 26 to move upward. At this time, the gap between the conical plug 26 and the conical hole 27 becomes larger. When draining water, a local negative pressure will be formed at the position of the water outlet pipe 5 due to the departure of water. When the filtered air inside the air filter box 21 enters the position of the water outlet pipe 5 through the air guide pipe 20, the pressure will be balanced in time, making the water outlet of the water outlet pipe 5 smoother.

[0032] In the present embodiment, two limiting slide bars 12 are symmetrically fixedly installed on the inner walls of the two opposite sides of the separation tank 2, a plurality of surge-proof plates 13 are equidistantly slidably installed between the two limiting slide bars 12, a connecting rod 14 is fixedly connected between the plurality of surge-proof plates 13, a plurality of grille holes are penetrated through the outer surfaces of the plurality of surge-proof plates 13, the surge-proof plates 13 are arranged on the inner wall of the separation tank 2 near one end of the liquid inlet pipe 3, a first support 901 is fixedly installed on the inner wall of the separation tank 2 near one end of the liquid inlet pipe 3, a baffle plate 9 is rotatably installed between the inner walls of the first support 901, the baffle plate 9 is arranged at the liquid outlet end of the liquid inlet pipe 3, a second support 10 is fixedly installed on the top wall of the separation tank 2, a tilting rod 17 is rotatably installed between the inner walls of the second support 10, and the tilting rod 17 is close to A first guide groove 1101 is formed through the outer surface of the top end, the baffle plate 9 is composed of a top vertical plate and a bottom inclined plate, a driving rod 11 is fixedly installed on the outer surface of the baffle plate 9 away from the liquid inlet pipe 3, a first guide column 1102 is fixedly installed on the top end of the driving rod 11, the first guide column 1102 is slidably installed with the inner wall of the first guide groove 1101, a connecting spring 15 is fixedly installed on the bottom end of the tilting rod 17, a movable block 16 is fixedly connected to the bottom end of the connecting spring 15, a second guide groove 1802 is formed through the outer surface of the movable block 16 near the bottom end, a supporting block 18 is fixedly installed on the outer surface of the connecting rod 14, a second guide column 1801 is fixedly installed on the top end of the supporting block 18, and the second guide column 1801 is slidably installed with the inner wall of the second guide groove 1802.

[0033] The oil-gas-water mixed liquid impacts the outer surface of the baffle plate 9, causing the baffle plate 9 to swing, and the baffle plate 9 drives the driving rod 11 to move, and the driving rod 11 drives the tilting rod 17 to rotate through the first guide groove 1101 and the first guide column 1102, and the tilting rod 17 drives the movable block 16 to move through the connecting spring 15, and the movable block 16 drives the connecting rod 14 to reciprocate through the second guide column 1801 and the second guide groove 1802, and the connecting rod 14 drives the surge plate 13 to slide back and forth along the limiting slide bar 12. Due to the different contents of the three-phase substances inside the oil-gas-water mixed liquid, the impact force of the oil-gas-water mixed liquid entering the separation tank 2 is different. When the impact force is large, the surge plate 13 has a large force in the direction of the liquid inlet pipe 3, thereby offsetting the impact force of the oil-gas-water mixed liquid falling into the separation tank 2, so that the liquid inside the separation tank 2 is greatly reduced in surging, ensuring that the water after oil-water separation will not surge to the position of the oil outlet pipe 6, so as to avoid affecting the subsequent measurement and weighing.

[0034] In this embodiment, a water receiving box 7 is fixedly mounted on the upper surface of the base 1 , and an oil receiving box 8 is also fixedly mounted on the upper surface of the base 1 . The water receiving box 7 is arranged directly below the water outlet pipe 5 , and the oil receiving box 8 is arranged directly below the oil outlet pipe 6 .

[0035] After the oil and water are separated, the valves at the ends of the water outlet pipe 5 and the oil outlet pipe 6 are opened respectively, so that the oil and water enter the water receiving box 7 and the oil receiving box 8 respectively. The weight increase of the oil and water per unit time is calculated by the weighing device at the bottom of the water receiving box 7 and the oil receiving box 8, so as to measure and weigh the oil, gas and water, and the separated gas is measured and monitored by the gas flow meter.

[0036] It should be noted that when the present invention is in use, the operator opens the valve of the liquid inlet pipe 3 to allow the oil-gas-water mixed liquid to enter the interior of the separation tank 2. The mixed liquid will first be blocked by the baffle plate 9 and then flow along the inclined plate below the baffle plate 9 to the bottom of the separation tank 2 and gather. The setting of the baffle plate 9 prevents the oil-gas-water mixed liquid from being sprayed into the position of the separation tank 2 near the oil outlet pipe 6, which facilitates the separation of oil and water.

[0037] The oil-gas-water mixed liquid impacts the outer surface of the baffle plate 9, causing the baffle plate 9 to swing, and the baffle plate 9 drives the driving rod 11 to move, and the driving rod 11 drives the tilting rod 17 to rotate through the first guide groove 1101 and the first guide column 1102, and the tilting rod 17 drives the movable block 16 to move through the connecting spring 15, and the movable block 16 drives the connecting rod 14 to reciprocate through the second guide column 1801 and the second guide groove 1802, and the connecting rod 14 drives the surge plate 13 to slide back and forth along the limit slide bar 12. Due to the different contents of the three-phase substances in the oil-gas-water mixed liquid, the impact force of the oil-gas-water mixed liquid entering the separation tank 2 is different. When the impact force is large, the surge plate 13 has a large force in the direction of the liquid inlet pipe 3, thereby offsetting the impact force of the oil-gas-water mixed liquid falling into the separation tank 2, so that the liquid in the separation tank 2 is greatly reduced in surging, ensuring that the water after oil-water separation will not surge to the position of the oil outlet pipe 6, avoiding affecting the subsequent measurement and weighing;

[0038] After the liquid oil and water in the separation tank 2 are separated, the density of the floating plate 23 is smaller than that of water and larger than that of oil, so the floating plate 23 will float on the surface of the water according to the amount of water. When there is more water in the oil-gas-water mixed liquid, the floating plate 23 will float up and drive the slide plate 24 to float up, thereby raising the position of the oil-water separation. Through this device, the height of the oil-water separation can be automatically increased when there is more water in the oil-gas-water mixed liquid, thereby preventing water from overflowing into the oil outlet pipe 6 and ensuring the accuracy of subsequent oil and water metering and weighing.

[0039] The support rod 25 is driven upward by the sliding plate 24, so that the support rod 25 drives the conical plug 26 upward. At this time, the gap between the conical plug 26 and the conical hole 27 becomes larger. When draining water, the position of the water outlet pipe 5 will form a local negative pressure due to the departure of water. When the filtered air in the air filter box 21 enters the position of the water outlet pipe 5 through the air guide pipe 20, the pressure will be balanced in time, so that the water outlet of the water outlet pipe 5 is smoother.

[0040] The separated oil and water enter the water receiving box 7 and the oil receiving box 8 through the water outlet pipe 5 and the oil outlet pipe 6 respectively. The weighing device at the bottom of the water receiving box 7 and the oil receiving box 8 calculates the increase in the weight of the oil and water per unit time, thereby measuring and weighing the oil, gas and water.

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An oil, gas and water three-phase metering device, comprising a base (1), characterized in that: A separation tank (2) is fixedly mounted on the upper surface of the base (1); a liquid inlet pipe (3) is fixedly mounted on the end surface of one end of the separation tank (2); one end of the liquid inlet pipe (3) penetrates the inner wall of the separation tank (2) and is connected with the interior thereof; an exhaust pipe (4) is fixedly mounted on the top of the separation tank (2) near the other end; the exhaust pipe (4) is connected with the interior of the separation tank (2); a water outlet pipe (5) is fixedly mounted on the bottom of the separation tank (2) near the other end; an oil outlet pipe (6) is also fixedly mounted on the bottom of the separation tank (2) near the other end; and the inner wall of the separation tank (2) is fixedly mounted. An oil-water isolation plate (19) is installed, a slide groove (1901) is provided inside the oil-water isolation plate (19), a slide plate (24) is slidably installed on the inner wall of the slide groove (1901), the oil-water isolation plate (19) is arranged between the oil outlet pipe (6) and the water outlet pipe (5), an opening is provided on the outer surface of the oil-water isolation plate (19) close to the water outlet pipe (5), a floating plate (23) is slidably installed on the inner wall of the opening, one end of the floating plate (23) passes through the opening and is fixedly connected to the bottom end of the slide plate (24), and the oil outlet pipe (6) and the water outlet pipe (5) are connected to the interior of the separation tank (2).

2. The oil, gas and water three-phase metering device according to claim 1 is characterized in that: An air filter box (21) is fixedly mounted on the top wall of the separation tank (2); the bottom end of the exhaust pipe (4) penetrates the inner wall of the separation tank (2) and is arranged inside the air filter box (21); an air inlet nozzle (22) is arranged at one end of the air filter box (21); a gas flow meter is arranged on the outer surface of the air inlet nozzle (22); an air guide pipe (20) is fixedly mounted on the lower surface of the air filter box (21); the bottom end of the air guide pipe (20) penetrates the outer surface of the oil-water isolation plate (19) and is arranged inside the water outlet pipe (5); a plurality of air holes are evenly penetrated on the circumferential outer surface of the air guide pipe (20) close to the water outlet pipe (5).

3. The oil, gas and water three-phase metering device according to claim 2 is characterized in that: The top end of the air guide pipe (20) passes through the bottom wall of the air filter box (21) and is provided with a tapered hole (27); a support rod (25) is fixedly mounted on the upper surface of the slide plate (24); the top end of the support rod (25) passes through the outer surface of the air filter box (21) and is slidably mounted thereon; a tapered plug (26) is fixedly mounted on the top end of the support rod (25); the tapered plug (26) is matched with the tapered hole (27).

4. The oil, gas and water three-phase metering device according to claim 1, characterized in that: Two limiting slide bars (12) are symmetrically fixedly installed on the inner walls of the separation tank (2) on opposite sides, and a plurality of surge prevention plates (13) are equidistantly slidably installed between the two limiting slide bars (12). A connecting rod (14) is fixedly connected between the plurality of surge prevention plates (13), and a plurality of grille holes are penetrated through the outer surfaces of the plurality of surge prevention plates (13). The surge prevention plates (13) are arranged on the inner wall of the separation tank (2) near one end of the liquid inlet pipe (3).

5. The oil, gas and water three-phase metering device according to claim 4, characterized in that: A first support (901) is fixedly mounted on the inner wall of the separation tank (2) near one end of the liquid inlet pipe (3); a baffle plate (9) is rotatably mounted between the inner walls of the first support (901); the baffle plate (9) is arranged at the liquid outlet end of the liquid inlet pipe (3); a second support (10) is fixedly mounted on the top wall of the separation tank (2); a tilting rod (17) is rotatably mounted between the inner walls of the second support (10); a first guide groove (1101) is penetrated through the outer surface of the tilting rod (17) near the top end; and the baffle plate (9) is composed of a top vertical plate and a bottom inclined plate.

6. The oil, gas and water three-phase metering device according to claim 5, characterized in that: A driving rod (11) is fixedly mounted on the outer surface of the baffle plate (9) on the side away from the liquid inlet pipe (3); a first guide column (1102) is fixedly mounted on the top end of the driving rod (11); the first guide column (1102) is slidably mounted on the inner wall of the first guide groove (1101); a connecting spring (15) is fixedly mounted on the bottom end of the tilting rod (17); a movable block (16) is fixedly connected to the bottom end of the connecting spring (15); a second guide groove (1802) is penetrated through the outer surface of the movable block (16) near the bottom end; a supporting block (18) is fixedly mounted on the outer surface of the connecting rod (14); a second guide column (1801) is fixedly mounted on the top end of the supporting block (18); the second guide column (1801) is slidably mounted on the inner wall of the second guide groove (1802).

7. The oil, gas and water three-phase metering device according to claim 1, characterized in that: A water receiving box (7) is fixedly mounted on the upper surface of the base (1), and an oil receiving box (8) is also fixedly mounted on the upper surface of the base (1); the water receiving box (7) is arranged directly below the water outlet pipe (5), and the oil receiving box (8) is arranged directly below the oil outlet pipe (6).

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