Automatic crude oil metering device

Abstract

The utility model relates to the technical field of metering devices, and provides an automatic crude oil metering device which comprises a bottom plate, a swirler is arranged on the bottom plate, an oil inlet pipe is arranged on one side, close to the top, of the swirler, an oil outlet pipeline is arranged on one side, close to the bottom, of the swirler, and a liquid flowmeter is arranged on the oil outlet pipeline. An oil outlet pipeline is arranged at the top of the cyclone, a gas flow meter is arranged on the gas outlet pipeline, an activated carbon plate is arranged on the gas outlet pipeline between the cyclone and the gas flow meter, one end of the oil outlet pipeline and one end of the gas outlet pipeline are communicated with the inside of the cyclone, and the other end of the oil outlet pipeline and the other end of the gas outlet pipeline are connected through a three-way pipe. And an oil outlet pipe is arranged at the other end of the three-way pipe. According to the technical scheme, the accuracy and reliability of final crude oil metering data are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metering devices, and specifically, to an automatic crude oil metering device. Background Art

[0002] A crude oil metering device is a device used to accurately measure and record the crude oil flow rate, and usually includes components such as a flow meter, a temperature sensor, a pressure sensor, and a data recording system. They can monitor and record the flow rate, temperature, and pressure of crude oil in real time to ensure the accurate metering of petroleum products and the safety of the transportation process.

[0003] In underground oil and gas reservoirs, due to the high-pressure and high-temperature environment, natural gas can exist in a gaseous state. When this oil and gas mixture is pumped out of the ground, the change in pressure and temperature will cause the gas part to be released, forming bubbles and dissolving in the crude oil. In the metering device, data such as flow rate, density, temperature, and pressure are all important parameters for calculation. Crude oil containing gas may cause changes in these parameters, thereby affecting the accuracy and reliability of the final metering data. Summary of the Utility Model

[0004] The utility model provides an automatic crude oil metering device, which improves the accuracy and reliability of the final crude oil metering data.

[0005] The technical solution of the utility model is as follows: an automatic crude oil metering device, including a bottom plate, a hydrocyclone is provided on the bottom plate, an oil inlet pipe is provided on one side of the hydrocyclone close to the top, an oil outlet pipe is provided on one side of the hydrocyclone close to the bottom, a liquid flow meter is provided on the oil outlet pipe, an air outlet pipe is provided on the top of the hydrocyclone, a gas flow meter is provided on the air outlet pipe, an activated carbon plate is provided between the hydrocyclone and the gas flow meter on the air outlet pipe, one ends of the oil outlet pipe and the air outlet pipe are both communicated with the inside of the hydrocyclone, the other ends of the oil outlet pipe and the air outlet pipe are connected through a tee pipe, and an oil outlet pipe is provided at the other end of the tee pipe.

[0006] Furthermore, two filter boxes are provided between the hydrocyclone and the gas flow meter on the air outlet pipe, U-shaped pipes are provided on both sides of the filter boxes, both sides of the U-shaped pipes are communicated with the inside of the two filter boxes, and both U-shaped pipes are communicated with the air outlet pipe. Two activated carbon plates are provided in total, and the two activated carbon plates are respectively arranged in the two filter boxes. A sealing mechanism for sealing one side of the U-shaped pipe is provided inside the filter box.

[0007] Further, the sealing mechanism includes a moving plate, a screw rod, and a stop valve. The moving plate is slidably connected to the inside of the filter tank. The screw rod is arranged inside the filter tank and is threadedly connected to the moving plate. The screw rod is rotatably connected to the inside of the filter tank, and one end of the screw rod extends outside the filter tank. A sealing plate for sealing one side of the U-shaped pipe is provided on the side of the moving plate close to the cyclone, and the sealing plate is fixedly connected to the moving plate through a plurality of first elastic members. The stop valve is arranged on the U-shaped pipe on the side of the filter tank away from the cyclone and is communicated with the inside of the U-shaped pipe.

[0008] Further, two fixing blocks are arranged inside the filter tank, and a fixing groove is formed between the two fixing blocks. An opening is provided at the top of the filter tank. The other side of the activated carbon plate is slidably connected to the inner wall of the opening. The other side of the activated carbon plate is slidably connected to the inner wall of the fixing groove. A clamping groove is provided on the side of the activated carbon plate close to the moving plate. A receiving groove is provided on the side of the fixing block close to the activated carbon plate. A clamping block engaged with the clamping groove is arranged in the receiving groove. A fixing component for separating the clamping block from the clamping groove is provided on the side of the fixing block close to the cyclone.

[0009] Further, the fixing component includes a second elastic member and a sliding block fixedly connected to the clamping block. The sliding block is slidably connected to the inner wall of the receiving groove. One end of the second elastic member is fixedly connected to the side of the receiving groove close to the clamping groove, and the other end of the second elastic member is fixedly connected to the sliding block. One end of the clamping block away from the clamping groove extends outside the fixing block. A first inclined surface is provided on the side of the clamping block away from the fixing block. The bottom corners of the moving plate are in an arc-shaped structure, and the bottom of the moving plate is slidably connected to the first inclined surface.

[0010] Further, a guiding rod is arranged inside the filter tank. The moving plate is slidably connected to the guiding rod. A limiting ring is fixedly connected to the guiding rod, and the horizontal height of the limiting ring is equal to the height of the U-shaped pipe. A handle is provided on the side of the screw rod away from the filter tank.

[0011] The working principle and beneficial effects of the present utility model are as follows:

[0012] By arranging the cyclone in the present utility model, when the crude oil enters the inside of the cyclone, it will be affected by the cyclone, so that the gas and the liquid are separated. Since the gas density is small, it will enter the gas outlet pipe upward and be measured by the gas flowmeter; while the liquid enters the oil outlet pipe and is measured by the liquid flowmeter. After the detection, the gas and the liquid are mixed through the three-way pipe and then flow out through the oil outlet pipe.

[0013] After separation by the hydrocyclone, the flow rates of gas and liquid in the crude oil can be accurately measured, thereby improving the accuracy and reliability of the final crude oil measurement data. In addition, the activated carbon plate is provided to absorb the moisture in the gas, keep the gas in a dry state, reduce the risk of damage or corrosion to the gas flowmeter sensor or measuring element caused by moisture, and thus improve the service life and measurement accuracy of the gas flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0015] Figure 1 Structural schematic of the present utility model Figure 1 ;

[0016] Figure 2 Structural schematic of the present utility model Figure 2 ;

[0017] Figure 3 Partial structural sectional view schematic of the present utility model;

[0018] Figure 4 is Figure 3 Enlarged schematic at position A in

[0019] Figure 5 is Figure 4 Partial structural sectional view schematic in

[0020] Figure 6 is Figure 5 Enlarged schematic at position B in

[0021] In the figure: 1, bottom plate; 101, hydrocyclone; 102, inlet oil pipe; 103, outlet oil pipeline; 104, liquid flowmeter; 105, outlet gas pipeline; 106, gas flowmeter; 107, activated carbon plate; 108, three-way pipe; 109, outlet oil pipe; 2, filter box; 201, U-shaped pipe; 202, moving plate; 203, screw; 204, stop valve; 205, sealing plate; 206, first elastic member; 3, fixing block; 301, fixing groove; 302, opening; 303, clamping groove; 304, accommodating groove; 305, clamping block; 306, second elastic member; 307, slider; 308, first inclined surface; 4, guide rod; 401, limiting ring; 402, handle; 403, second inclined surface. SPECIFIC EMBODIMENTS

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0023] Refer to Figures 1-6 , an automatic crude oil metering device, including a bottom plate 1, a hydrocyclone 101 is provided on the bottom plate 1, an oil inlet pipe 102 is provided on one side of the hydrocyclone 101 near the top, an oil outlet pipe 103 is provided on one side of the hydrocyclone 101 near the bottom, a liquid flowmeter 104 is provided on the oil outlet pipe 103. The liquid flowmeter 104 can be of the Endress+Hauser Promag 400 model. This model of liquid flowmeter 104 supports communication protocols such as HART, PROFIBUS PA, and FOUNDATION Fieldbus. An air outlet pipe 105 is provided at the top of the hydrocyclone 101, a gas flowmeter 106 is provided on the air outlet pipe 105. The gas flowmeter 106 can be of the Siemens SITRANS FC430 model. This model of gas flowmeter 106 is equipped with communication interfaces such as MODBUS RTU, PROFIBUS DP, and HART, and can transmit flow rate and other relevant data in real time. An activated carbon plate 107 is provided between the hydrocyclone 101 and the gas flowmeter 106 on the air outlet pipe 105. One ends of the oil outlet pipe 103 and the air outlet pipe 105 are both communicated with the inside of the hydrocyclone 101, and the other ends of the oil outlet pipe 103 and the air outlet pipe 105 are connected through a tee 108. The other end of the tee 108 is provided with an oil outlet pipe 109.

[0024] By setting the hydrocyclone 101, when the crude oil enters the inside of the hydrocyclone 101, it will be affected by the hydrocyclone 101, so that the gas and liquid are separated. Due to the lower density of the gas, it will enter the air outlet pipe 105 upward and be metered by the gas flowmeter 106; while the liquid enters the oil outlet pipe 103 and is metered by the liquid flowmeter 104. After the detection, the gas and liquid are mixed through the tee 108 and then flow out through the oil outlet pipe 103.

[0025] After separation by the hydrocyclone 101, the flow rates of the gas and liquid in the crude oil can be accurately measured, thereby improving the accuracy and reliability of the final crude oil metering data. In addition, setting the activated carbon plate 107 can absorb the moisture in the gas, keep the gas in a dry state, reduce the risk of damage or corrosion to the sensor or measuring element of the gas flowmeter 106 caused by moisture, and thus improve the service life and measurement accuracy of the gas flowmeter 106.

[0026] Further, when the activated carbon plate 107 gradually saturates over time and with use, its adsorption capacity will gradually weaken. Therefore, it is necessary to regularly replace the activated carbon plate 107. In order to replace the activated carbon plate 107 without affecting the operation of the metering device, two filter boxes 2 are provided in the outlet pipe 105 between the cyclone 101 and the gas flowmeter 106. U-shaped pipes 201 are provided on both sides of the filter box 2. Both sides of the U-shaped pipe 201 are internally connected to the two filter boxes 2, and both U-shaped pipes 201 are connected to the outlet pipe 105. There are two activated carbon plates 107 in total, and the two activated carbon plates 107 are respectively arranged in the two filter boxes 2. A sealing mechanism for sealing one side of the U-shaped pipe 201 is provided inside the filter box 2.

[0027] When the staff needs to replace the activated carbon plate 107, the sealing mechanism inside the filter box 2 can be used to seal one side of the U-shaped pipe 201 to prevent gas from entering the filter box 2 through one side of the U-shaped pipe 201. When the sealing mechanism seals one side of the U-shaped pipe 201, the staff can replace the activated carbon plate 107, and the gas will enter the other filter box 2 through the other side of the U-shaped pipe 201 and enter the inside of the outlet pipe 105 through the activated carbon plate 107.

[0028] Regularly replacing the activated carbon plate 107 can ensure that its adsorption capacity is always efficient, thereby maintaining the stable performance and accuracy of the gas flowmeter 106. At the same time, in this embodiment, the activated carbon plate 107 can be replaced while the metering device is in operation, thereby improving the working efficiency of the metering device.

[0029] Specifically, the sealing mechanism includes a moving plate 202, a screw 203, and a stop valve 204. The moving plate 202 is slidably connected to the inside of the filter box 2. The screw 203 is arranged inside the filter box 2 and is threadedly connected to the moving plate 202. The screw 203 is rotatably connected to the inside of the filter box 2, and one end of the screw 203 extends outside the filter box 2. A sealing plate 205 for sealing one side of the U-shaped pipe 201 is provided on the side of the moving plate 202 close to the cyclone 101, and the sealing plate 205 is fixedly connected to the moving plate 202 through a number of first elastic members 206 (the first elastic members 206 are in a compressed state in the illustrated state). A number of connecting columns (the connecting columns are telescopic) are provided on the side of the moving plate 202 close to the sealing plate 205. Each first elastic member 206 is respectively sleeved on the connecting column. By providing the connecting column, it is possible to prevent the sealing plate 205 from shifting during movement, thereby avoiding the dislocation of the first elastic member 206, and further improving the service life of the first elastic member 206. The stop valve 204 is arranged on the U-shaped pipe 201 on the side of the filter box 2 away from the cyclone 101 and is internally connected to the U-shaped pipe 201.

[0030] When the activated carbon plate 107 needs to be replaced, the staff needs to rotate the screw rod 203. The screw rod 203 will drive the moving plate 202 to move upward, causing the sealing plate 205 to move accordingly. The sealing plate 205 will gradually seal the U-shaped tube 201, thereby preventing gas from entering the filter box 2 through the U-shaped tube 201. When the sealing plate 205 blocks one side of the U-shaped tube 201, since the first elastic member 206 is in a compressed state, the provided first elastic member 206 will always apply a force to the U-shaped tube 201, thereby improving the sealing performance of the sealing plate 205 to the U-shaped tube 201.

[0031] In order to accurately position the sealing plate 205, a guide rod 4 is provided inside the filter box 2. The moving plate 202 is slidably connected to the guide rod 4. A limit ring 401 is fixedly connected to the guide rod 4, and the horizontal height of the limit ring 401 is equal to the height of the U-shaped tube 201. A handle 402 is provided on the side of the screw rod 203 away from the filter box 2. By providing the guide rod 4, the moving plate 202 can be prevented from shifting or misaligning during the movement, thereby improving the stability of the movement of the moving plate 202. Secondly, the provided limit ring 401 can limit the moving height of the moving plate 202, so that the limit height of the sealing plate 205 is exactly horizontal with the U-shaped tube 201, facilitating the staff to seal the U-shaped tube 201.

[0032] In this embodiment, two fixing blocks 3 are provided inside the filter box 2, and a fixing groove 301 is formed between the two fixing blocks 3. An opening 302 is provided at the top of the filter box 2. The other side of the activated carbon plate 107 is slidably connected to the inner wall of the opening 302 (a sealing gasket can be provided at the position of the opening 302 to enhance the sealing performance of the filter box 2). The other side of the activated carbon plate 107 is slidably connected to the inner wall of the fixing groove 301 (there is a certain distance between the other side of the activated carbon plate 107 and the bottom of the fixing groove 301). A clamping groove 303 is provided on the side of the activated carbon plate 107 close to the moving plate 202. A receiving groove 304 is provided on the side of the fixing block 3 close to the activated carbon plate 107. A clamping block 305 that is clamped with the clamping groove 303 is provided in the receiving groove 304. A fixing component for separating the clamping block 305 from the clamping groove 303 is provided on the side of the fixing block 3 close to the cyclone 101 (for better fixing effect, multiple clamping grooves 303 and clamping blocks 305 can be provided).

[0033] Specifically, the fixing component includes a second elastic member 306 and a slider 307 fixedly connected to the clamping block 305 (both the first elastic member 206 and the second elastic member 306 are selected as cylindrical compression springs). The slider 307 is slidably connected to the inner wall of the accommodating groove 304. One end of the second elastic member 306 is fixedly connected to the side of the accommodating groove 304 close to the card slot 303, and the other end of the second elastic member 306 is fixedly connected to the slider 307. The end of the clamping block 305 away from the card slot 303 extends outside the fixing block 3. A first inclined surface 308 is provided on the side of the clamping block 305 away from the fixing block 3. The bottom corner of the moving plate 202 is in an arc-shaped structure, and the bottom of the moving plate 202 is slidably connected to the first inclined surface 308.

[0034] When the staff needs to replace the activated carbon plate 107, the staff needs to rotate the screw rod 203. The screw rod 203 will drive the moving plate 202 to move upward, so that the sealing plate 205 will also move accordingly. The sealing plate 205 will gradually seal the U-shaped tube 201. At the same time, the second elastic member 306 will recover its deformation, so that the slider 307 drives the clamping block 305 to disengage from the card slot 303. Then, tighten the stop valve 204 corresponding to the filter box 2, and the activated carbon plate 107 can be taken out, and the operation is convenient.

[0035] When the staff installs the activated carbon plate 107, the side of the activated carbon plate 107 with the card slot 303 is facing the direction of the handle 402, and then align it with the opening 302 at the top of the filter box 2 and push it in. One end of the activated carbon plate 107 will be stuck into the fixing groove 301. Subsequently, the staff can rotate the screw rod 203, and the screw rod 203 will drive the moving plate 202 to descend. When the moving plate 202 contacts the first inclined surface 308 on the clamping block 305, the moving plate 202 will gradually move the slider 307 on the clamping block 305 in the direction of compressing the second elastic member 306, so that the other side of the clamping block 305 is stuck into the card slot 303, thereby realizing the fixation. The fixing component in this embodiment can fix the activated carbon plate 107 without additional operations by the staff, improving the working efficiency of the staff in installing the activated carbon plate 107 (it should be noted that a rounded corner is provided at the bottom corner on the side of the clamping block 305 close to the card slot 303, and a second inclined surface 403 is provided on the side of the card slot 303 close to the accommodating groove 304. When the clamping block 305 is not stuck into the card slot 303, the horizontal height of the card slot 303 is slightly higher than the horizontal height of the clamping block 305. When the clamping block 305 gradually extends into the card slot 303 driven by the moving plate 202, due to the compressibility of the sealing gasket, the arc-shaped side at the bottom of the clamping block 305 will gradually be stuck into the card slot 303 through the second inclined surface 403, thereby improving the tightness of the connection between the activated carbon plate 107 and the sealing gasket, and further improving the sealing performance inside the filter box 2).

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic crude oil metering device, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a cyclone (101), an oil inlet pipe (102) is provided on one side of the cyclone (101) close to the top, an oil outlet pipe (103) is provided on one side of the cyclone (101) close to the bottom, a liquid flow meter (104) is provided on the oil outlet pipe (103), an air outlet pipe (105) is provided on the top of the cyclone (101), a gas flow meter (106) is provided on the air outlet pipe (105), an activated carbon plate (107) is provided on the air outlet pipe (105) between the cyclone (101) and the gas flow meter (106), one end of the oil outlet pipe (103) and the air outlet pipe (105) are both in communication with the inside of the cyclone (101), the other ends of the oil outlet pipe (103) and the air outlet pipe (105) are connected via a tee pipe (108), and the other end of the tee pipe (108) is provided with an oil outlet pipe (109).

2. An automatic crude oil metering device according to claim 1, characterized in that: The air outlet pipe (105) is provided with two filter boxes (2) between the cyclone (101) and the gas flow meter (106); U-shaped tubes (201) are provided on both sides of the filter boxes (2); both sides of the U-shaped tubes (201) are connected to the inside of the two filter boxes (2); and the two U-shaped tubes (201) are connected to the air outlet pipe (105); two activated carbon plates (107) are provided, and the two activated carbon plates (107) are respectively arranged in the two filter boxes (2); and a sealing mechanism for sealing one side of the U-shaped tube (201) is provided inside the filter box (2).

3. An automatic crude oil metering device according to claim 2, characterized in that: The sealing mechanism comprises a movable plate (202), a screw (203), and a stop valve (204); the movable plate (202) is slidably connected to the inside of the filter box (2); the screw (203) is arranged inside the filter box (2) and is threadedly connected to the movable plate (202); the screw (203) is rotatably connected to the inside of the filter box (2), and one end of the screw (203) extends to the outside of the filter box (2); a sealing plate (205) for sealing one side of the U-shaped tube (201) is provided on a side of the movable plate (202) close to the cyclone (101), and the sealing plate (205) is fixedly connected to the movable plate (202) via a plurality of first elastic members (206); and the stop valve (204) is arranged on the U-shaped tube (201) on a side of the filter box (2) far from the cyclone (101), and is communicated with the inside of the U-shaped tube (201).

4. The automatic crude oil metering device according to claim 3 is characterized in that: Two fixing blocks (3) are provided inside the filter box (2), and a fixing groove (301) is formed between the two fixing blocks (3); an opening (302) is provided at the top of the filter box (2); the other side of the activated carbon plate (107) is slidably connected to the inner wall of the opening (302); the other side of the activated carbon plate (107) is slidably connected to the inner wall of the fixing groove (301); a clamping groove (303) is provided on a side of the activated carbon plate (107) close to the movable plate (202); a receiving groove (304) is provided on a side of the fixing block (3) close to the activated carbon plate (107); a clamping block (305) clamped with the clamping groove (303) is provided in the clamping groove (304); and a fixing component for making the clamping block (305) disengage from the clamping groove (303) is provided on a side of the fixing block (3) close to the cyclone (101).

5. The automatic crude oil metering device according to claim 4, characterized in that: The fixing assembly comprises a second elastic member (306) and a sliding block (307) fixedly connected to the clamping block (305); the sliding block (307) is slidably connected to the inner wall of the accommodating groove (304); one end of the second elastic member (306) is fixedly connected to a side of the accommodating groove (304) close to the clamping groove (303); the other end of the second elastic member (306) is fixedly connected to the sliding block (307); one end of the clamping block (305) away from the clamping groove (303) extends to the outside of the fixing block (3); a first inclined surface (308) is provided on a side of the clamping block (305) away from the fixing block (3); the bottom corner of the movable plate (202) is in an arc-shaped structure, and the bottom of the movable plate (202) is slidably connected to the first inclined surface (308).

6. The automatic crude oil metering device according to claim 3, characterized in that: A guide rod (4) is provided inside the filter box (2), the movable plate (202) is slidably connected to the guide rod (4), a limit ring (401) is fixedly connected to the guide rod (4), and the horizontal height of the limit ring (401) is equal to the height of the U-shaped tube (201), and a handle (402) is provided on the side of the screw rod (203) away from the filter box (2).

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