Crude oil gas-liquid separation metering device

Abstract

The utility model provides a crude oil gas-liquid separation metering device which comprises a container body, a filter cartridge, a floating ball assembly, a liquid flow meter and a gas flow meter, an inner barrel structure is arranged in the container body, the filter cartridge is arranged in the inner barrel structure, and a liquid inlet and a liquid outlet are formed in the outer side of the container body. The liquid inlet is communicated with the liquid outlet through the inner cylinder structure and the filter cylinder; an exhaust port is formed in the top of the container body, a supporting structure is arranged above the filter cartridge in the container body, the lower end of the floating ball assembly is movably connected with the supporting structure, and a plug for plugging the exhaust port is arranged at the upper end of the floating ball assembly; the liquid flow meter is connected with the liquid outlet, and the gas flow meter is connected with the exhaust port. The utility model has the advantages that gas gathered above the liquid level of crude oil can be quickly exhausted, and the exhaust efficiency is improved, so that the stability of liquid in the container body is favorably maintained, the fluctuation of the crude oil liquid in the container body is reduced, and the metering stability of the liquid flowmeter on the crude oil liquid can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas -liquid separation technical field especially relates to a crude oil gas -liquid separation metering device. BACKGROUND

[0002] In the process of oil exploitation, in order to realize the more accurate metering of crude oil, needs using gas absorber to the gas contained in crude oil before metering gas -liquid separation is carried out;Wherein, the working principle of gas absorber is: utilize the liquid in the container inside change flow direction and make the air dissolved in it escape, simultaneously utilize filter screen subassembly to filter the solid impurity in liquid, namely, it can reach the purpose of solid, liquid, gas three separation simultaneously;Such as the application number for CN201620246494.6's Chinese utility model patent discloses a kind of gas filter. However, existing gas filter is prone to cause crude oil liquid to produce fluctuation in the process of actual use, and then it can influence the metering stability of flowmeter. In view of the above-mentioned problems, the present invention is in-depth studied, and then the present case is generated. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem, to provide a kind of crude oil gas -liquid separation metering device, can reduce the fluctuation of crude oil liquid, to improve the metering stability of flowmeter.

[0004] The utility model is realized as follows: a kind of crude oil gas -liquid separation metering device, including container body, filter cartridge, float ball subassembly, liquid flowmeter and gas flowmeter, the inner cylinder structure is equipped in container body, filter cartridge is arranged in inner cylinder structure, the outside of container body is equipped with liquid inlet and liquid outlet, and liquid inlet is connected with liquid outlet by inner cylinder structure and filter cartridge intercommunication;

[0005] The top of container body is equipped with exhaust port, and the upper side of filter cartridge in container body is equipped with support structure, and the lower end of float ball subassembly is movably connected with support structure, and the upper end of float ball subassembly is equipped with the plug for plugging exhaust port;Liquid flowmeter is connected with liquid outlet, and gas flowmeter is connected with exhaust port.

[0006] Further, it further includes elbow pipe;The input end of elbow pipe is at the position lower than output end, and the output end of liquid flowmeter is connected with the input end of elbow pipe.

[0007] Further, the inner wall of container body is provided with steady flow baffle between inner cylinder structure at the upper position corresponding to liquid outlet.

[0008] Further, the diameter of exhaust port is 10-25mm, and the lower side of exhaust port is formed with conical guide port, and the plug is conical structure matched with conical guide port.

[0009] Further, the floating ball assembly comprises a floating ball body and a movable rod; a middle part of the movable rod penetrates through the floating ball body and is connected with the floating ball body, and a plug is connected with an upper end of the movable rod; a support structure is spaced apart from a top of the filter cartridge, a middle part of the support structure is provided with a movable limiting through hole, a lower part of the movable rod penetrates through the movable limiting through hole and extends below the support structure, and a limiting part of the movable rod is arranged above the support structure.

[0010] Further, the support structure comprises a support frame and a first filter screen, and the first filter screen is arranged at a bottom of the support frame; an inner wall of the container body is provided with a support block, and the support frame is locked on the support block.

[0011] Further, the container body comprises an outer cylinder body and an upper cover arranged at a top of the outer cylinder body, and a cross section of the upper cover is in an arc structure.

[0012] Further, a bottom of the filter cartridge is open, a top of the filter cartridge is closed, a plurality of filter holes are arranged on a side wall of the filter cartridge, and at least one second filter screen is arranged in the filter cartridge.

[0013] The inner cylinder structure comprises an inner cylinder body and an inclined plate, and the filter cartridge is arranged in the inner cylinder body; an outer wall of the inner cylinder body is closed and connected with an inner wall of the container body through the inclined plate, the liquid inlet is arranged below the inclined plate, the liquid outlet is arranged above the inclined plate, a top of the inner cylinder body is open, and a bottom of the inner cylinder body is provided with a communication port which is in communication with an inside of the filter cartridge.

[0014] Further, the device further comprises a DTU module, a temperature sensor, a pressure gauge and a protective box body; the temperature sensor is arranged at the liquid outlet, and the pressure gauge is arranged on the container body; the liquid flow meter, the gas flow meter, the temperature sensor and the pressure gauge are connected with the DTU module; and the container body, the DTU module, the liquid flow meter, the gas flow meter, the temperature sensor and the pressure gauge are arranged in the protective box body.

[0015] Further, a blowdown port is arranged at a bottom of the container body, and a blowdown valve is arranged at the blowdown port.

[0016] By adopting the technical scheme of the device, at least the following beneficial effects are achieved:

[0017] 1. The traditional float ball structure is changed, an exhaust port is arranged at the top of the container body, a supporting structure is arranged above the filter cartridge, the lower end of the float ball assembly is movably assembled with the supporting structure, and a plug is arranged at the upper end of the float ball assembly; when the pressure in the container body reaches a certain value and the liquid level of the crude oil in the container body drops, the float ball assembly can drive the plug to quickly drop and open the exhaust port, so that the gas collected above the liquid level of the crude oil can be quickly discharged, the exhaust efficiency is improved, which is beneficial to maintaining the stability of the liquid in the container body, reducing the fluctuation of the liquid of the crude oil in the container body, improving the measurement stability of the liquid flow meter for the liquid of the crude oil, and the amount of discharged gas can also be measured.

[0018] 2. In addition to changing the traditional float ball structure, a bend pipe is arranged at the output end of the liquid flow meter, the input end of the bend pipe is arranged at a position lower than the output end, and a flow stabilizing baffle is arranged above the liquid outlet, so that the stability of the liquid of the crude oil is further improved, and the measurement stability of the liquid flow meter is further improved.

[0019] 3. The tapered guide port is formed below the exhaust port, so that the tapered guide port can guide the plug during specific work, and the plug can reliably and effectively plug the exhaust port. At the same time, the diameter of the exhaust port of the traditional float ball structure is generally about 3-5mm, which not only has low exhaust efficiency, but also is easy to cause blockage; the diameter of the exhaust port is increased to 10-25mm by changing the design of the float ball structure, which not only effectively improves the exhaust efficiency, but also effectively prevents blockage, thereby being beneficial to maintaining the stability of the liquid level of the crude oil in the container body.

[0020] 4. The DTU module is arranged on the crude oil gas-liquid separation metering device, and the liquid flow meter, the gas flow meter, the temperature sensor and the pressure gauge are connected with the DTU module, so that the DTU module can be used to timely upload the collected flow, temperature and pressure data during specific work, so that remote monitoring can be conveniently performed.

DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in combination with the embodiments with reference to the drawings.

[0022] Figure 1 is a sectional view of a crude oil gas-liquid separation metering device of the utility model;

[0023] Figure 2 is a whole three-dimensional structure view of a crude oil gas-liquid separation metering device of the utility model;

[0024] Figure 3 is a side view of a crude oil gas-liquid separation metering device of the utility model;

[0025] Figure 4 is a sectional view of the container body in the utility model;

[0026] Figure 5 is a structure diagram of the floating ball assembly in the utility model;

[0027] Figure 6 is a structure diagram of the support structure in the utility model.

[0028] Mark explanation:

[0029] Crude oil gas-liquid separation metering device 100;

[0030] Container body 1, inner cylinder structure 11, inner cylinder body 111, communication port 1111, inclined plate 112, liquid inlet 12, liquid outlet 13, exhaust port 14, conical guide port 141, support structure 15, movable limiting through hole 151, support frame 152, first filter screen 153, steady flow baffle 16, support block 17, outer cylinder body 18, upper cover 19, blowdown 10;

[0031] Filter cartridge 2, second filter screen 21;

[0032] Floating ball assembly 3, plug 31, floating ball body 32, movable rod 33, limiting part 331;

[0033] Liquid flowmeter 4;

[0034] Gas flowmeter 5;

[0035] Elbow 6;

[0036] DTU module 71, temperature sensor 72, pressure gauge 73;

[0037] Protective box 8;

[0038] Blowdown valve 9.

Specific embodiments

[0039] In order to better understand the technical scheme of the utility model, the technical scheme of the utility model will be explained in detail below in combination with the drawings in the specification and specific embodiments.

[0040] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features.

[0041] Please refer to Figures 1 to 6 The utility model discloses a crude oil gas liquid separation metering device 100, the crude oil gas liquid separation metering device 100 includes container body 1, filter cartridge 2, float ball assembly 3, liquid flowmeter 4 and gas flowmeter 5, be equipped with inner cylinder structure 11 in container body 1, filter cartridge 2 sets up in inner cylinder structure 11, the outside of container body 1 is equipped with liquid inlet 12 and liquid outlet 13, liquid inlet 12 is used for the input of crude oil liquid, and liquid outlet 13 is used for the output of crude oil liquid, and liquid inlet 12 is connected with liquid outlet 13 through inner cylinder structure 11 and filter cartridge 2, so that the crude oil mined enters container body 1 through liquid inlet 12, will change the flow direction under the action of inner cylinder structure 11 and filter cartridge 2, and after gas-liquid separation and filtration, the crude oil liquid is exported through liquid outlet 13;

[0042] The top of container body 1 is equipped with exhaust port 14, and the inside of container body 1 is equipped with support structure 15 above filter cartridge 2, the lower end of float ball assembly 3 is movably connected with support structure 15, and float ball assembly 3 can move up and down relative to support structure 15 during operation, and the upper end of float ball assembly 3 is equipped with plug 31 for plugging exhaust port 14;The liquid flowmeter 4 is connected with the liquid outlet 13 to realize the metering of the crude oil liquid exported by the liquid outlet 13;The gas flowmeter 5 is connected with the exhaust port 14 to realize the metering of the gas amount discharged by the exhaust port 14.

[0043] The utility model discloses a kind of crude oil gas-liquid separation metering devices, including container body 1, filter cylinder 2, liquid flow meter 4, gas-liquid separation valve 5 and outlet 13, wherein, container body 1 is provided with filter cylinder 2, and the lower end of filter cylinder 2 is provided with liquid flow meter 4, and the upper end of liquid flow meter 4 is provided with gas-liquid separation valve 5, and the lower end of gas-liquid separation valve 5 is provided with outlet 13.

[0044] In some embodiments of the utility model, as shown in Figure 1 As shown, the crude oil gas-liquid separation metering device 100 further includes an elbow pipe 6; the input end of the elbow pipe 6 is located lower than the output end, and the output end of the liquid flow meter 4 is connected to the input end of the elbow pipe 6, which can ensure that the crude oil liquid output from the outlet 13 is always in a full pipe state, thereby facilitating more accurate measurement by the liquid flow meter 4.

[0045] In some embodiments of the utility model, a flow stabilizing baffle 16 is arranged between the inner wall of the container body 1 and the inner cylinder structure 11 at a position above the outlet 13, which can improve the stability of the crude oil liquid output from the outlet 13, thereby facilitating improved measurement stability.

[0046] In addition to changing the traditional float structure, the utility model also provides an elbow pipe 6 at the output end of the liquid flow meter 4, with the input end of the elbow pipe 6 being located lower than the output end, and a flow stabilizing baffle 16 is arranged above the outlet 13, which can further improve the stability of the crude oil liquid, thereby further improving the measurement stability of the liquid flow meter 4.

[0047] In some embodiments of the utility model, the diameter of the exhaust port 14 is 10-25 mm, and a tapered guide port 141 is formed below the exhaust port 14, and the plug 31 is a tapered structure matching the tapered guide port 141, so that the plug 31 can cooperate with the tapered guide port 141 to block the exhaust port 14.

[0048] The utility model discloses a taper guide port 141 is formed below the exhaust port 14, so that the taper guide port 141 can guide the plug 31 during the specific work, and the plug 31 can reliably and effectively plug the exhaust port 14. Meanwhile, the diameter of the exhaust port of the traditional float ball structure is generally about 3-5mm, which not only has low exhaust efficiency, but also is easy to cause blockage. The utility model changes the design of the float ball structure and increases the diameter of the exhaust port 14 to 10-25mm, which can effectively improve the exhaust efficiency and prevent blockage, thereby helping to keep the crude oil liquid level in the container body 1 stable.

[0049] In some embodiments of the utility model, as shown in Figure 5 The support structure 15 and the top of the filter cartridge 2 are spaced apart, and the space is used to provide the space required for the movement of the movable rod 33. The middle part of the support structure 15 is provided with a movable limiting through hole 151, and the lower part of the movable rod 33 passes through the movable limiting through hole 151 and extends below the support structure 15, so that the movable rod 33 does not separate from the support structure 15, and the movable rod 33 can only move up and down under the limiting and guiding of the movable limiting through hole 151. The movable rod 33 is provided with a limiting part 331 above the support structure 15, which limits the downward movement of the movable rod 33 and prevents the movable rod 33 from hitting the filter cartridge 2. As a specific embodiment of the utility model, a screw rod segment can be formed at the lower part of the movable rod 33, and a limiting nut is screwed on the screw rod segment as the limiting part 331.

[0050] In some embodiments of the utility model, as shown in Figure 6 The support structure 15 includes a support frame 152 and a first filter screen 153, and the first filter screen 153 is arranged at the bottom of the support frame 152. The inner wall of the container body 1 is provided with a support block 17, and the support frame 152 is locked on the support block 17. Specifically, the support frame 152 and the support block 17 can be locked and fixed together by screws. The utility model sets the first filter screen 153 at the bottom of the support frame 152, so that the gas contained in the crude oil liquid can be further squeezed out when the crude oil liquid passes through the first filter screen 153, thereby improving the gas-liquid separation effect.

[0051] In some embodiments of the utility model, the container body 1 includes outer cylinder 18 and upper cover 19 which is arranged on the top of outer cylinder 18, and the section of upper cover 19 is in arched structure. The utility model discloses the section of upper cover 19 is in arched structure, so that the upper part of float ball assembly 3 can be located in the inside of upper cover 19 in specific implementation, to reduce the occupation of the inside space of outer cylinder 18.

[0052] In some embodiments of the utility model, the bottom of filter cartridge 2 is open, the top of filter cartridge 2 is closed, the side wall of filter cartridge 2 is distributed with several filter holes (not shown), and at least one second filter screen 21 is further arranged in filter cartridge 2. When crude oil liquid enters filter cartridge 2 from the bottom of filter cartridge 2, the top of filter cartridge 2 is closed, and the second filter screen 21 is further arranged in filter cartridge 2, so that the crude oil liquid can only pass upwards through second filter screen 21 and pass outwards through the side wall of filter cartridge 2. In this process, impurities in the crude oil liquid are intercepted by filter cartridge 2 and second filter screen 21, thereby achieving the effect of filtering solid impurities, and the gas contained in the crude oil liquid is also squeezed out, thereby achieving better gas-liquid separation effect.

[0053] The inner cylinder structure 11 includes inner cylinder body 111 and inclined plate 112, and filter cartridge 2 is arranged in inner cylinder body 111. The outer wall of inner cylinder body 111 is closedly connected with the inner wall of container body 1 through inclined plate 112, liquid inlet 12 is located below inclined plate 112, and liquid outlet 13 is located above inclined plate 112, so as to ensure that the crude oil liquid entering from liquid inlet 12 will pass through filter cartridge 2 and cannot bypass filter cartridge 2 to directly enter liquid outlet 13. The top of inner cylinder body 111 is open, and the bottom of inner cylinder body 111 is provided with communication port 1111 which is connected with the inside of filter cartridge 2, so that the crude oil liquid can enter the inside of filter cartridge 2 through communication port 1111.

[0054] In some embodiments of the utility model, as Figure 1As shown, the crude oil gas-liquid separation metering device 100 further comprises a DTU module 71, a temperature sensor 72, a pressure gauge 73 and a protective box 8; the temperature sensor 72 is arranged at the liquid outlet 13 to collect the temperature of the output crude oil liquid; the pressure gauge 73 is arranged on the container body 1 to collect the pressure in the container body 1; the liquid flow meter 4, the gas flow meter 5, the temperature sensor 72 and the pressure gauge 73 are connected with the DTU module 71; the container body 1, the DTU module 71, the liquid flow meter 4, the gas flow meter 5, the temperature sensor 72 and the pressure gauge 73 are all located inside the protective box 8, so that the protective box 8 protects the container body 1, the DTU module 71, the liquid flow meter 4, the gas flow meter 5, the temperature sensor 72 and the pressure gauge 73. The DTU (Data Terminal Unit) module is a commonly used Internet of Things device and a communication device, which can transmit the data collected by the sensor or monitoring device to the cloud or remote server through wireless network or wired network.

[0055] The utility model discloses a crude oil gas-liquid separation metering device 100 is equipped with DTU module 71, and liquid flow meter 4, gas flow meter 5, temperature sensor 72 and pressure gauge 73 are connected with DTU module 71, so that in the specific work, the flow, temperature, pressure and other data collected can be uploaded in time by DTU module 71, so that remote monitoring can be conveniently carried out.

[0056] In some embodiments of the utility model, the bottom of the container body 1 is provided with a blowdown port 10, and the blowdown port 10 is provided with a blowdown valve 9. In the specific work of the utility model, the solid impurities filtered by the filter cartridge 2 will be deposited at the bottom of the container body 1 under the action of gravity, therefore, by providing the blowdown port 10 and the blowdown valve 9 at the bottom of the container body 1, the solid impurities deposited at the bottom of the container body 1 can be conveniently cleaned regularly.

[0057] The overall working principle of the crude oil gas-liquid separation metering device 100 is as follows: the mined crude oil liquid is connected into the container body 1 through the liquid inlet 12, the crude oil liquid enters the inside of the filter cylinder 2 from the bottom of the inner cylinder structure 11 after entering the container body 1, and the crude oil liquid passes upwards through the second filter screen 21 and the sidewall of the filter cylinder 2, in this process, not only the solid impurities in the crude oil liquid can be intercepted, but also the gas contained in the crude oil liquid can be squeezed out, and the intercepted solid impurities will be deposited at the bottom of the container body 1. The crude oil liquid filtered by the filter cylinder 2 will continuously rise, and after passing upwards through the first filter screen 153, the float ball assembly 3 will be driven to rise, so that the plug 31 at the upper end of the float ball assembly 3 blocks the exhaust port 14, and the filtered crude oil liquid can be output through the liquid outlet 13, and the liquid flow meter 4 can measure the output crude oil liquid; at the same time, the discharged gas will rise and gather to the top of the container body 1, when the pressure in the container body 1 reaches a certain value, the crude oil liquid level in the container body 1 will decrease under the action of gas pressure, and the decrease of the crude oil liquid level will drive the plug 31 of the float ball assembly 3 to descend and open the exhaust port 14, so that the gas at the top of the container body 1 can be quickly discharged through the exhaust port 14, and the gas flow meter 5 can measure the amount of discharged gas; with the discharge of gas in the container body 1, the crude oil liquid level in the container body 1 will rise again, and the rise of the crude oil liquid level will drive the plug 31 of the float ball assembly 3 to rise and block the exhaust port 14, so as to realize gas-liquid separation. In addition, the DTU module 71 can be used to upload the collected flow, temperature, pressure and other data in time to realize remote monitoring.

[0058] Although the specific embodiments of the present application are described above, those skilled in the art should understand that the specific embodiments described are only illustrative, and are not intended to limit the scope of the present application, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present application should be covered within the scope of the claims of the present application.

Claims

1. A crude oil gas-liquid separation metering device, comprising a container body, a filter cartridge and a float ball assembly, wherein an inner cylinder structure is arranged in the container body, the filter cartridge is arranged in the inner cylinder structure, the outer side of the container body is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are connected in communication through the inner cylinder structure and the filter cartridge; characterized in that: The liquid flow meter is connected with the liquid outlet, and the gas flow meter is connected with the gas outlet. ​ 2. A crude oil gas-liquid separation metering device as claimed in claim 1, wherein: The liquid flow meter is connected with the liquid outlet, and the gas flow meter is connected with the gas outlet.

3. A crude oil gas-liquid separation metering device as claimed in claim 1, wherein: The inner wall of the container body and the inner cylinder structure are provided with a flow stabilizing baffle at a position corresponding to the liquid outlet.

4. A crude oil gas-liquid separation metering device as recited in claim 1 wherein: The diameter of the gas outlet is 10-25 mm, and a tapered guide hole is formed below the gas outlet.

5. A crude oil gas-liquid separation metering device as recited in claim 1 wherein: The floating ball assembly comprises a floating ball body and a movable rod.

6. A crude oil gas-liquid separation metering device as recited in claim 1 wherein: The support structure comprises a support frame and a first filter screen, and the first filter screen is arranged at the bottom of the support frame.

7. A crude oil gas-liquid separation metering device as recited in claim 1 wherein: The container body comprises an outer cylinder body and an upper cover arranged on the top of the outer cylinder body.

8. A crude oil gas-liquid separation metering device as recited in claim 1 wherein: The bottom of the filter cylinder is open, the top of the filter cylinder is closed, and a plurality of filter holes are arranged on the side wall of the filter cylinder. The inner cylinder structure comprises an inner cylinder body and an inclined plate.

9. A gas-liquid separation metering device for crude oil as claimed in any one of claims 1 to 8, characterized in that: The container body, the DTU module, the liquid flow meter, the gas flow meter, the temperature sensor and the pressure gauge are arranged in the protective box body.

10. A crude oil gas-liquid separation metering device as in claim 1, wherein: The bottom of the container body is provided with a sewage outlet, and the sewage outlet is provided with a sewage valve.

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