Oil-water separation device for oil exploitation

Abstract

The utility model relates to the technical field of oil-water separation devices, and discloses an oil-water separation device for oil exploitation, which comprises a separation tank, an oil inlet pipeline main body, an oil outlet pipeline main body and a drainage pipeline main body are fixedly communicated on the separation tank in sequence, and a chassis is fixed in an inner cavity of the separation tank; a cover plate is fixed at the top opening of the separation tank; a heating ring is installed outside the separation tank through a support and located between the cover plate and the base plate, and a heating cavity is formed in the separation tank and located between the cover plate and the base plate; according to the oil-water separation device for oil exploitation, an oil-water mixture is heated, the heated oil-water mixture is discharged to the bottom of the separation tank through the conveying pipe, heating enables the temperature of the oil-water mixture to rise, the viscosity of the oil-water mixture to be reduced and oil drops to float upwards more easily, meanwhile, heating is beneficial for breaking the oil-water emulsification state and promoting oil drop coalescence, and the oil-water separation effect is improved. Therefore, the separation time is remarkably shortened, and the separation effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-water separation devices, specifically an oil-water separation device for petroleum extraction. Background Technology

[0002] During the extraction process, oil contains not only oil but also a significant amount of water. To obtain the crude oil used by refineries and the natural gas used by users, the mixture produced by the oil wells must be processed. Therefore, oil-water separation is an essential step between oil exploration and extraction and refining into petroleum products.

[0003] According to the publicly available announcement (CN208856952U), an oil-water separation device for petroleum extraction is disclosed. This technology discloses "an oil-water separation tank, an oil-water level gauge, and an air booster pump; the oil-water separation tank is cylindrical; the exhaust pipe is located on the upper side of the oil-water separation tank, and the exhaust pipe and the oil-water separation tank are an integral structure; the oil-water level gauge is located on the upper side of the oil-water separation tank, etc., which has the technical effect of improving the degree of oil-water separation and the separation efficiency of the separation device by setting up a filtration device, an air booster pump, a baffle, a sewage pipe, an oil outlet pipe, and a drainage pipe."

[0004] While the above design, through the installation of filtration devices, air booster pumps, baffles, sewage pipes, oil outlet pipes, and drainage pipes, helps to improve the degree and efficiency of oil-water separation, the process of introducing the oil-water mixture into the oil-water separation tank via inlet pipes and allowing it to settle so that the less dense oil forms a floating layer on the water surface requires a long settling time for the oil and water to completely separate, thus affecting the oil-water separation effect. Therefore, we propose an oil-water separation device for oil extraction to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an oil-water separation device for oil extraction, which solves the problem that when oil-water mixture is introduced into the oil-water separation tank through a pipeline, the lower density oil forms a floating layer on the water surface through a settling method, and the oil and water require a long settling time to completely separate into layers, thus affecting the oil-water separation effect.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an oil-water separation device for oil extraction, comprising a separation tank, wherein an oil inlet pipe body, an oil outlet pipe body, and a drainage pipe body are sequentially fixedly connected to the separation tank, and a chassis is fixedly installed inside the separation tank;

[0007] The top opening of the separation tank is fixed with a cover plate;

[0008] A heating coil is mounted on the outside of the separation tank via a bracket, and the heating coil is located between the cover plate and the chassis. A heating chamber is set inside the separation tank between the cover plate and the chassis.

[0009] A connecting rod is provided on the cover plate, and a temperature sensor is fixed at the bottom end of the connecting rod;

[0010] A conveying pipe is fixedly connected to the chassis, and an electromagnetic control valve is installed on the conveying pipe.

[0011] Preferably, the temperature sensor is located inside the heating chamber, and one end of the main body of the oil inlet pipe is connected to the heating chamber of the separator.

[0012] Preferably, the cover plate is equipped with a stirring mechanism for stirring the oil and water in its heating chamber.

[0013] Preferably, the stirring mechanism includes stirring rods arranged in a ring at equal intervals on the cover plate via bearings, and a second gear fixed to the top of the stirring rods. The top of the separation tank is rotatably connected to an annular seat via bearings. A second gear plate that meshes with multiple sets of second gears is fixed to the inner side wall of the annular seat. A first gear plate is fixed to the outer surface of the annular seat. A connecting frame is fixed to the outer surface of the separation tank. A motor is fixed to the surface of the connecting frame. A first gear that meshes with the first gear plate is fixed to the output end of the motor.

[0014] Preferably, the stirring mechanism is equipped with a moving mechanism that drives the connecting rod and the temperature sensor to move synchronously. The moving mechanism includes a third gear fixed to the upper surface of the first gear by a connecting pin and a support column that rotates on the cover plate by a bearing. A fourth gear that meshes with the third gear is fixed to the surface of the support column. A reciprocating screw is fixed to the top of the support column. The other end of the reciprocating screw is rotatably connected to the connecting frame by a bearing. A threaded sleeve is fitted on the surface of the reciprocating screw, and a mounting seat is fixedly fitted on the outer side of the threaded sleeve. One end of the connecting rod is fixed to the surface of the mounting seat.

[0015] Preferably, a limiting rod is fixed on the connecting frame, the mounting base slides on the surface of the limiting rod through a sliding hole, and a movable hole adapted to the connecting rod is provided on the cover plate, so that the connecting rod can slide at the movable hole provided on the cover plate.

[0016] Beneficial effects

[0017] This invention provides an oil-water separation device for oil extraction. Compared with the prior art, it has the following advantages:

[0018] This oil-water separation device for oil extraction heats the oil-water mixture, and the heated mixture is discharged to the bottom of the separation tank through a conveying pipe. Heating increases the temperature and reduces the viscosity of the oil-water mixture, making it easier for oil droplets to float. At the same time, heating helps to break the oil-water emulsion state and promotes oil droplet aggregation, thereby significantly shortening the separation time and improving the separation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a partial view of the overall structure of this utility model.

[0022] In the diagram: 101. Separator; 102. Main body of oil inlet pipe; 103. Main body of oil outlet pipe; 104. Main body of drainage pipe; 105. Heating coil; 106. Chassis; 107. Delivery pipe; 108. Electromagnetic control valve; 109. Cover plate; 110. Connecting rod; 111. Temperature sensor; 2. Stirring mechanism; 201. Connecting frame; 202. Motor; 203. First gear; 204. First gear disc; 205. Annular seat; 206. Second gear disc; 207. Second gear; 208. Stirring rod; 3. Moving mechanism; 301. Third gear; 302. Fourth gear; 303. Support column; 304. Mounting base; 305. Reciprocating screw; 306. Limiting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 As shown:

[0025] An oil-water separation device for oil extraction includes a separation tank 101, on which an oil inlet pipe body 102, an oil outlet pipe body 103, and a drainage pipe body 104 are sequentially fixed and connected.

[0026] In this implementation plan: The existing device {Publication (Announcement) No.}: CN208856952U discloses a device for oil-water separation in petroleum extraction. This patent discloses the oil inlet pipe, oil outlet pipe, and water pumping pipe proposed in this application. The main body 102 of the oil inlet pipe, the main body 103 of the oil outlet pipe, and the main body 104 of the drainage pipe in this application adopt the same technical means as in this prior art. These technical means will not be described in detail here. This application further improves the existing main body. For details, please refer to the disclosed technology below. In order to solve the technical problems existing in this prior art, such as the background technology disclosed above, "When the above design is used, although a filter device, an air booster pump, a baffle, a sewage pipe, and an oil outlet pipe are set up, although..." The inclusion of drainage pipes is beneficial for improving the oil-water separation degree and efficiency of the separation device. However, by introducing the oil-water mixture into the oil-water separation tank 101 through the inlet pipes, the lower density oil forms a floating layer on the water surface through a settling method. The oil and water require a long settling time to completely separate, which affects the oil-water separation effect. In terms of practical use, this problem is obviously a real and difficult problem to solve. All electrical equipment involved in this product is powered by an external power source. The solution also includes a control module, which is installed on the separation tank 101. During use, the control module can be used to start the operation of each electrical device. The power connection method of each electrical device is an existing mature technology, which is well known to those skilled in the art and will not be described in detail here.

[0027] It should be noted that this solution also includes a pressure gauge, an oil / water level gauge, and an air booster pump, which can be used as prior art references (patent publication number: CN208856952U), and will not be described in detail here.

[0028] Furthermore:

[0029] like Figures 1-3 As shown:

[0030] Based on the above: the inner cavity of the separator 101 is fixed with a base 106;

[0031] A cover plate 109 is fixed to the top opening of the separator 101;

[0032] A heating coil 105 is mounted on the outside of the separation tank 101 via a bracket, and the heating coil 105 is located between the cover plate 109 and the chassis 106. A heating chamber is set inside the separation tank 101 between the cover plate 109 and the chassis 106.

[0033] A connecting rod 110 is provided on the cover plate 109. A temperature sensor 111 is fixed at the bottom of the connecting rod 110. The temperature sensor 111 is located in the heating chamber. One end of the oil inlet pipe body 102 is connected to the heating chamber of the separator 101.

[0034] A conveying pipe 107 is fixedly connected to the chassis 106, and an electromagnetic control valve 108 is installed on the conveying pipe 107.

[0035] A stirring mechanism 2 is installed on the cover plate 109 to stir the oil and water in its heating chamber. The stirring mechanism 2 includes stirring rods 208 arranged in a ring at equal intervals on the cover plate 109 via bearings and a second gear 207 fixed to the top of the stirring rods 208. The top of the separation tank 101 is rotatably connected to an annular seat 205 via bearings. A second gear disc 206 that meshes with multiple sets of second gears 207 is fixed to the inner side wall of the annular seat 205. A first gear disc 204 is fixed to the outer surface of the annular seat 205. A connecting frame 201 is fixed to the outer surface of the separation tank 101. A motor 202 is fixed to the surface of the connecting frame 201. A first gear 203 that meshes with the first gear disc 204 is fixed to the output end of the motor 202.

[0036] In this implementation plan: When the oil-water separation device for oil extraction is in use, the oil-water mixture is first transported to the separation tank 101 through the main body 102 of the oil inlet pipe and located in the heating chamber. After the mixture enters the heating chamber, the heating coil 105 outside the separation tank 101 starts to work. The heating coil 105 adopts an electric heating method to convert electrical energy into heat energy to heat the oil-water mixture.

[0037] During this process, the motor 202 is started, which drives the first gear 203 to rotate. The first gear 203 meshes with the first gear disk 204, thereby driving the first gear disk 204 to rotate. The first gear disk 204 drives the ring seat 205 to rotate. The second gear disk 206 on the ring seat 205 meshes with multiple sets of second gears 207, thereby driving the second gears 207 to rotate. Through the second gears 207, the stirring rod 208 can rotate to stir the heated oil-water mixture, ensuring uniform heat transfer and avoiding local overheating.

[0038] A temperature sensor 111 is installed inside the heating chamber to monitor the temperature of the oil-water mixture in real time. The temperature sensor 111 is connected to the control module (not shown in the figure) and can automatically adjust the heating power of the heating coil 105 according to the set temperature range to ensure that the oil-water mixture is separated at the optimal temperature. When the temperature sensor 111 detects that the oil-water temperature reaches the set value, the control module commands the electromagnetic control valve 108 to start, thereby releasing the blockage of the delivery pipe 107. At this time, the heated oil-water mixture is discharged to the bottom of the separation tank 101 through the delivery pipe 107. Heating increases the temperature and decreases the viscosity of the oil-water mixture, making it easier for oil droplets to float. At the same time, heating helps to break the oil-water emulsion state and promotes the aggregation of oil droplets, thereby significantly shortening the separation time and improving the separation effect.

[0039] After the heated oil-water mixture is discharged to the bottom of the separator 101, it can be discharged through the oil outlet pipe body 103 and the drainage pipe body 104 respectively, thus completing the oil-water separation operation.

[0040] It should be noted that after the heated oil-water mixture is discharged to the bottom of the separator 101, it can be discharged through the main body of the oil outlet pipe 103 and the main body of the drain pipe 104 respectively. It is used in conjunction with a pressure gauge, an oil-water level gauge and an air booster pump. The specific oil-water separation can be referred to as the existing technology announcement number: CN208856952U. Specific details will not be described in detail.

[0041] It should be noted that the separator 101 is made of stainless steel, and the electromagnetic control valve 108 is equipped with a sealing cover to increase its sealing performance and prevent it from being affected by oil and water.

[0042] Both the heating coil 105 and the temperature sensor 111 can be implemented using conventional techniques.

[0043] Furthermore;

[0044] In an optional embodiment, the stirring mechanism 2 is equipped with a moving mechanism 3 that drives the connecting rod 110 and the temperature sensor 111 to move synchronously. The moving mechanism 3 includes a third gear 301 fixed to the upper surface of the first gear 203 by a connecting pin and a support column 303 that rotates on the cover plate 109 by a bearing. A fourth gear 302 that meshes with the third gear 301 is fixed to the surface of the support column 303. A reciprocating screw 305 is fixed to the top of the support column 303. The other end of the reciprocating screw 305 is rotatably connected to the connecting frame 201 by a bearing. A threaded sleeve is threaded on the surface of the reciprocating screw 305, and a mounting base 304 is fixedly fitted on the outer side of the threaded sleeve. One end of the connecting rod 110 is fixed to the surface of the mounting base 304.

[0045] A limiting rod 306 is fixed on the connecting frame 201. The mounting base 304 slides on the surface of the limiting rod 306 through the sliding hole. The cover plate 109 is provided with a moving hole that matches the connecting rod 110. The connecting rod 110 can slide at the moving hole in the cover plate 109.

[0046] In this embodiment: the motor 202 drives the first gear 203 to rotate, and also drives the third gear 301 to rotate. The third gear 301 meshes with the fourth gear 302, thereby driving the fourth gear 302 to rotate. The fourth gear 302 drives the support column 303 to rotate, and the support column 303 drives the reciprocating screw 305 to rotate synchronously. The mounting seat 304 is installed on the reciprocating screw 305 through a threaded sleeve. As the reciprocating screw 305 rotates, the mounting seat 304 moves up and down. At the same time, the mounting seat 304 slides on the limiting rod 306. The setting of the limiting rod 306 increases the stability of the movement of the mounting seat 304. As the mounting seat 304 moves, the connecting rod 110 and the temperature sensor 111 also move up and down, so that the temperature sensor 111 can detect the temperature distribution at different heights in the heating cavity, improve the accuracy of temperature control, and ensure that the temperature in the heating cavity is more stable.

[0047] The working principle and usage process of this utility model are as follows: When using this oil-water separation device for oil extraction, the oil-water mixture is first transported to the separation tank 101 through the main body 102 of the oil inlet pipe and placed inside the heating chamber. After the mixture enters the heating chamber, the heating coil 105 outside the separation tank 101 starts working. The heating coil 105 uses electric heating to convert electrical energy into heat energy to heat the oil-water mixture. During this process, the motor 202 is started, driving the first gear 203 to rotate. The first gear 203 meshes with the first gear disc 204, thereby driving the first gear disc 204 to rotate. The first gear disc 204 drives the annular seat 205 to rotate, while the second gear disc 206 on the annular seat 205 meshes with multiple sets of second gears 207, thereby driving the second gears 207 to rotate. Through the second gears 207, the stirring rod 208 rotates, thus heating the mixture. The oil-water mixture is stirred to ensure uniform heat transfer and avoid local overheating. A temperature sensor 111 is installed in the heating chamber to monitor the temperature of the oil-water mixture in real time. The temperature sensor 111 is connected to the control module (not shown in the figure) and can automatically adjust the heating power of the heating coil 105 according to the set temperature range to ensure that the oil-water mixture is separated at the optimal temperature. When the temperature sensor 111 detects that the oil-water temperature reaches the set value, the control module commands the electromagnetic control valve 108 to start, thereby releasing the blockage of the delivery pipe 107. At this time, the heated oil-water mixture is discharged to the bottom of the separation tank 101 through the delivery pipe 107. Heating increases the temperature and decreases the viscosity of the oil-water mixture, making it easier for oil droplets to float. At the same time, heating helps to break the oil-water emulsion state and promotes oil droplet aggregation, thereby significantly shortening the separation time and improving the separation effect.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oil-water separation device for oil exploitation, comprising a separation tank (101), a main oil inlet pipeline body (102), a main oil outlet pipeline body (103) and a main water outlet pipeline body (104) are sequentially fixed and communicated on the separation tank (101), characterized in that: The inner cavity of the separation tank (101) is fixed with a bottom plate (106); The top of the separation tank (101) is fixed with a cover plate (109); The outer part of the separation tank (101) is installed with a heating ring (105) through a support, and the heating ring (105) is located between the cover plate (109) and the bottom plate (106), and the inner part of the separation tank (101) between the cover plate (109) and the bottom plate (106) is provided as a heating cavity; The cover plate (109) is provided with a connecting rod (110), and the bottom end of the connecting rod (110) is fixed with a temperature sensor (111); The bottom plate (106) is fixed with a conveying pipe (107) in communication, and the conveying pipe (107) is installed with an electromagnetic control valve (108).

2. The oil-water separation device for oil production according to claim 1, characterized in that: The temperature sensor (111) is located in the heating cavity, and one end of the oil inlet pipe body (102) is communicated with the heating cavity of the separation tank (101).

3. The oil-water separation device for oil production of claim 2, wherein: The cover plate (109) is installed with a stirring mechanism (2) for stirring the oil and water in the heating cavity.

4. The oil-water separation device for oil production of claim 3, wherein: The stirring mechanism (2) comprises a plurality of stirring rods (208) arranged in a ring shape at equal intervals on the cover plate (109) and rotating through bearings, and a second gear (207) fixed to the top end of the stirring rod (208), the top end of the separation tank (101) is rotatably connected with a ring-shaped seat (205) through a bearing, the inner side wall of the ring-shaped seat (205) is fixed with a second toothed disc (206) engaged with a plurality of second gears (207), the outer surface of the ring-shaped seat (205) is fixed with a first toothed disc (204), the outer surface of the ring-shaped seat (205) is fixed with a connecting frame (201), the surface of the connecting frame (201) is fixed with a motor (202), and the output end of the motor (202) is fixed with a first gear (203) engaged with the first toothed disc (204).

5. The oil-water separation device for oil production of claim 4, wherein: The stirring mechanism (2) is installed with a moving mechanism (3) for driving the connecting rod (110) and the temperature sensor (111) to move synchronously, the moving mechanism (3) comprises a third gear (301) fixed to the surface of the first gear (203) through a connecting pin, and a support column (303) rotating on the cover plate (109) through a bearing, the surface of the support column (303) is fixed with a fourth gear (302) engaged with the third gear (301), the top end of the support column (303) is fixed with a reciprocating lead screw (305), the other end of the reciprocating lead screw (305) is rotatably connected with the connecting frame (201) through a bearing, the surface of the reciprocating lead screw (305) is threadedly engaged with a lead sleeve, and the outer side of the lead sleeve is fixedly sleeved with a mounting seat (304), and one end of the connecting rod (110) is fixed to the surface of the mounting seat (304).

6. The oil-water separation device for oil production of claim 5, wherein: The connecting frame (201) is fixed with a limiting rod (306), the mounting seat (304) slides on the surface of the limiting rod (306) through a sliding hole, the cover plate (109) is provided with a moving hole matched with the connecting rod (110), and the connecting rod (110) can slide in the moving hole of the cover plate (109).

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