A crude oil water content monitoring device

Abstract

The utility model relates to oil liquid detection technical field especially crude oil water content monitoring devices, including oil storage tank, still include: single -way pipe, single -way pipe sets up in the top of oil storage tank, piston, the piston sets up in the inside of oil storage tank, second drive assembly is connected on the piston, liquid collecting pipe, the liquid collecting pipe fixed communication is on the sealed end of single -way pipe top, the inner diameter of liquid collecting pipe is less than the inner diameter of single -way pipe, heating device is fixedly installed on the liquid collecting pipe, the utility model discloses through single -way pipe vertical downward movement and to oil water carries out the collection, can collect the liquid of different liquid level to reduce the influence of oil water layering to water content data, effectively improve the reflection of sampling data to overall data, improve the accuracy degree of monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of oil detection technology, and in particular to a crude oil water content monitoring device. Background Technology

[0002] Crude oil is a complex mixture containing various hydrocarbons, as well as water and other impurities. Water may exist in different forms, such as free water, emulsified water, dissolved water, or bound water.

[0003] Patent document CN210894097U discloses a device for detecting the water content in lubricating oil, including a detection tank, several sampling components, a measuring component, and a visual measuring cavity. The sampling components are fixed on both sides of the lower end of the detection tank, and the measuring component and the visual measuring cavity are fixed on the other two sides of the detection tank. The sampling components include a distribution block, several connecting blocks, and a sampling hose connector. The measuring component includes a mounting bracket, an oil water sensor, a DC power supply, an orange indicator light, a red indicator light, and a buzzer. The visual measuring cavity is connected to the detection tank, and the probe of the oil water sensor extends into one side of the visual measuring cavity.

[0004] Existing technologies for monitoring water content in oil typically utilize multiple sensors to monitor water content at different locations within the oil. However, in crude oil storage facilities, due to the density difference between oil and water, free water exists in separate phases and is usually located at the bottom of the crude oil. Consequently, when monitoring the water content of crude oil using sensors, the water content detected at different liquid levels varies, making it difficult to reflect the overall water content percentage in the crude oil. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a crude oil water content monitoring device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a crude oil water content monitoring device, including an oil storage tank, and further comprising:

[0007] A single-pass pipe is disposed above the oil storage tank, and a first driving assembly is connected to the single-pass pipe. The single-pass pipe is driven by the first driving assembly to move into the oil storage tank.

[0008] A piston is disposed inside the oil storage tank, and a second drive assembly is connected to the piston. The piston is driven by the second drive assembly to slide and seal inside the single-pass pipe.

[0009] A liquid collecting tube is fixedly connected to the sealed end at the top of the single-pass pipe. The inner diameter of the liquid collecting tube is smaller than the inner diameter of the single-pass pipe. A heater is fixedly installed on the liquid collecting tube. The liquid collecting tube is made of a visible transparent material, and the surface of the liquid collecting tube is marked with graduations.

[0010] Preferably, the first driving component includes:

[0011] A fixing frame is fixedly connected to the top of the oil storage tank;

[0012] The movable strip is fixedly inserted into the single-pass pipe, and multiple limiting pins are fixedly connected to the movable strip. The limiting pins are slidably inserted into the fixed frame.

[0013] The first electric cylinder is fixedly mounted on the fixed frame, and its output shaft is fixedly connected to the movable bar.

[0014] Preferably, the first driving component includes:

[0015] The second electric cylinder is fixedly mounted on the oil storage tank. The output shaft of the second electric cylinder passes through the oil storage tank and extends into the interior of the oil storage tank before being fixedly connected to the bottom of the piston.

[0016] Preferably, a placement groove is provided on the bottom surface inside the oil storage tank, the piston is located inside the placement groove, a connecting pipe is fixedly inserted on the piston, and a one-way valve is fixedly installed at one end of the connecting pipe.

[0017] Preferably, the piston has a fixing groove on its top, and a heat insulation gasket is fixedly connected inside the fixing groove.

[0018] Preferably, a U-shaped tube is fixedly connected to the surface of the liquid collecting pipe, and a liquid pump is fixedly installed on the U-shaped tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By moving vertically downwards through a single-pass pipe to collect oil and water, liquids at different levels can be collected, thereby reducing the impact of oil-water stratification on water content data, effectively improving the reflection of sampling data on overall data, and enhancing the accuracy of monitoring data.

[0021] 2. The bottom surface inside the oil storage tank is flush with the top of the piston to ensure that the bottom surface inside the oil storage tank is at the same height, reducing the impact of piston height on sampling accuracy. When the piston slides into the liquid collection tube to seal, the one-way valve on the connecting pipe prevents the liquid inside the liquid collection tube from overflowing. When the piston returns to the placement tank, the one-way valve on the connecting pipe squeezes the liquid inside the placement tank out along the connecting pipe, thus ensuring that the piston can return to the placement tank smoothly.

[0022] 3. When heating oil and water, the liquid pump delivers oil and water unidirectionally inside the U-tube, thereby circulating the oil and water inside the collecting pipe and the U-tube, reducing the temperature difference caused by local heating, and increasing the contact between the evaporated water and the opening at the top of the collecting pipe during the circulation process, thus increasing the evaporation rate of the water. Attached Figure Description

[0023] Figure 1 This is a first structural schematic diagram of the present invention;

[0024] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0025] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point B in the diagram;

[0026] Figure 4 This is a schematic diagram of the second structure of the present invention;

[0027] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point C;

[0028] Figure 6 This is a schematic cross-sectional view of the combined structure of the single-pass pipe, liquid collecting pipe and U-shaped pipe of this utility model;

[0029] Figure 7 This is a schematic diagram of the piston, connecting pipe, and heat insulation gasket assembly structure of this utility model (the piston has been cut out).

[0030] In the diagram: 1. Oil storage tank; 2. Single-pass pipe; 3. Piston; 4. Liquid collection pipe; 5. Heater; 6. Fixing frame; 7. Movable bar; 8. Limiting pin; 9. First electric cylinder; 10. Second electric cylinder; 11. Placement slot; 12. Connecting pipe; 13. One-way valve; 14. Fixing slot; 15. Heat insulation gasket; 16. U-tube; 17. Liquid pump. Detailed Implementation

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] like Figures 1 to 7 The crude oil water content monitoring device shown includes an oil storage tank 1, and further includes:

[0033] A single-pass pipe 2 is installed above the oil storage tank 1. A first driving component is connected to the single-pass pipe 2, and the single-pass pipe 2 is driven to move into the oil storage tank 1 by the first driving component.

[0034] Piston 3 is located inside oil storage tank 1. A second drive assembly is connected to piston 3. Piston 3 is driven by the second drive assembly to slide and seal inside single-pass pipe 2.

[0035] A collecting pipe 4 is fixedly connected to the sealed end of the top of the single-pass pipe 2. The inner diameter of the collecting pipe 4 is smaller than that of the single-pass pipe 2. A heater 5 is fixedly installed on the collecting pipe 4. The collecting pipe 4 is made of a visible transparent material, and its surface is marked with graduations. During operation, crude oil is statically stored in the oil storage tank 1, allowing free water to remain in an independent phase layer at the bottom of the crude oil. The first drive assembly drives the single-pass pipe 2 to move vertically downward into the oil storage tank 1. The opening at the bottom of the single-pass pipe 2 contacts the crude oil inside the oil storage tank 1. During the vertical downward movement, crude oil and water at different liquid levels within the corresponding range are collected inside the single-pass pipe 2 through the internal cavity. Then, the second drive assembly drives the piston 3 to move into the single-pass pipe 2 and slides upward in a sealing manner inside the single-pass pipe 2, thereby closing the single-pass pipe 2. The collected crude oil and water are pushed into the collecting pipe 4. When the piston 3 moves to the highest point, the liquid level is observed through the visible transparent material of the collecting pipe 4, and the initial liquid volume is recorded by the markings on the collecting pipe 4. Then, the collecting pipe 4 is heated by the heater 5 at a temperature between the boiling points of water and crude oil. Due to the different boiling points of water and oil, the water inside the collecting pipe 4 is boiled and evaporated. After evaporation, the liquid volume is recorded again by the markings on the collecting pipe 4. The ratio of the difference between the two liquid volumes to the initial liquid volume is the water content percentage. The oil and water are collected by moving vertically downward through the single-pass pipe 2. This allows for the collection of liquids at different levels, thereby reducing the impact of oil-water stratification on the water content data, effectively improving the reflection of the sampling data on the overall data, and improving the accuracy of the monitoring data.

[0036] As a further embodiment of the present invention, the first driving component includes:

[0037] The fixing frame 6 is fixedly connected to the top of the oil storage tank 1;

[0038] The movable strip 7 is fixedly inserted into the single tube 2. Multiple limit pins 8 are fixedly connected to the movable strip 7. The limit pins 8 are slidably inserted into the fixed frame 6.

[0039] The first electric cylinder 9 is fixedly mounted on the fixed frame 6, and its output shaft is fixedly connected to the movable bar 7. During operation, the movable bar 7 is fixed to the single-pass pipe 2 and is fixedly connected to multiple limit pins 8. Through the sliding insertion of the limit pins 8 and the fixed frame 6, the movable bar 7 and the fixed frame 6 are in a sliding connection. The output shaft of the first electric cylinder 9 drives the movable bar 7 to move downward, thereby driving the single-pass pipe 2 to move downward and collect oil and water. When the output shaft of the first electric cylinder 9 moves in the opposite direction, the movable bar 7 drives the single-pass pipe 2 to move upward and return to the initial position.

[0040] As a further embodiment of the present invention, the first driving component includes:

[0041] The second electric cylinder 10 is fixedly installed on the oil storage tank 1. The output shaft of the second electric cylinder 10 passes through the oil storage tank 1 and extends into the interior of the oil storage tank 1 before being fixedly connected to the bottom of the piston 3. During operation, the output shaft of the second electric cylinder 10 drives the piston 3 to move into the single-pass pipe 2, and the piston 3 pushes the oil and water into the liquid collection pipe 4 through the sealing and sliding of the piston 3.

[0042] As a further embodiment of the present invention, a placement groove 11 is provided on the bottom surface inside the oil storage tank 1, and the piston 3 is located inside the placement groove 11. A connecting pipe 12 is fixedly inserted on the piston 3, and a one-way valve 13 is fixedly installed at one end of the connecting pipe 12. During operation, by providing a placement groove 11 on the bottom surface inside the oil storage tank 1 and placing the piston 3 inside the placement groove 11, the bottom surface inside the oil storage tank 1 is kept flush with the top of the piston 3, thereby ensuring that the bottom surface inside the oil storage tank 1 has the same height, reducing the influence of the piston 3 height on the sampling accuracy. When the piston 3 slides into the liquid collection pipe 4 for sealing, the one-way valve 13 on the connecting pipe 12 prevents the liquid inside the liquid collection pipe 4 from overflowing. When the piston 3 returns to the placement groove 11, the one-way valve 13 on the connecting pipe 12 causes the liquid inside the placement groove 11 to be squeezed out along the connecting pipe 12, thereby ensuring that the piston 3 can smoothly return to the placement groove 11.

[0043] As a further embodiment of the present invention, a fixing groove 14 is provided on the top of the piston 3, and a heat insulation gasket 15 is fixedly connected inside the fixing groove 14. During operation, when the piston 3 moves to the top surface inside the single-pass pipe 2, the heat insulation gasket 15 inside the fixing groove 14 blocks the connection between the liquid collecting pipe 4 and the single-pass pipe 2. When the heater 5 heats the liquid collecting pipe 4, the heat insulation gasket 15 provides heat insulation and blockage between the piston 3 and the liquid, reducing the deformation of the piston 3 caused by heat conduction in contact.

[0044] As a further embodiment of the present invention, a U-shaped tube 16 is fixedly connected to the surface of the liquid collecting pipe 4, and a liquid pump 17 is fixedly installed on the U-shaped tube 16. During operation, by fixing the U-shaped tube 16 to the liquid collecting pipe 4, after the oil and water enter the inside of the liquid collecting pipe 4, some of the oil and water simultaneously enter the inside of the U-shaped tube 16 and maintain the same liquid level. It should be noted that the markings on the surface of the liquid collecting pipe 4 include the volumes of both the liquid collecting pipe 4 and the U-shaped tube 16. When heating the oil and water, the liquid pump 17 unidirectionally transports the oil and water inside the U-shaped tube 16, thereby circulating the oil and water inside the liquid collecting pipe 4 and the U-shaped tube 16, reducing the temperature difference caused by local heating, and increasing the contact between the evaporated water and the top opening of the liquid collecting pipe 4 during the circulation process, thereby increasing the evaporation rate of the water.

[0045] Working principle of this utility model:

[0046] Crude oil is stored statically in storage tank 1, allowing free water to remain in an independent phase layer at the bottom. A first drive assembly drives a single-pass pipe 2 vertically downwards into storage tank 1. The opening at the bottom of the single-pass pipe 2 contacts the crude oil inside storage tank 1. During this downward movement, crude oil and water at different liquid levels within the corresponding range are collected inside the single-pass pipe 2. Next, a second drive assembly drives a piston 3 to move into the single-pass pipe 2 and slides upwards within it, pushing the collected crude oil and water into a collecting pipe 4. When the piston 3 reaches its highest point, the collected water is released through the visible transparent section of the collecting pipe 4. The liquid level is observed, and the initial liquid volume is recorded using the markings on the collecting tube 4. Then, the collecting tube 4 is heated by the heater 5 at a temperature between the boiling points of water and crude oil. Due to the different boiling points of water and oil, the water inside the collecting tube 4 is boiled and evaporated. After evaporation, the liquid volume is recorded again using the markings on the collecting tube 4. The ratio of the difference between the two liquid volumes to the initial liquid volume is the water content percentage. The oil and water are collected by moving vertically downward through the single-pass tube 2, which can collect liquids at different levels, thereby reducing the impact of oil-water stratification on the water content data, effectively improving the reflection of the sampling data on the overall data, and improving the accuracy of the monitoring data.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A crude oil water content monitoring device, comprising an oil storage tank (1), characterized in that, Also includes: A single-pass pipe (2) is disposed above the oil storage tank (1). A first driving component is connected to the single-pass pipe (2). The single-pass pipe (2) is driven to move into the oil storage tank (1) by the first driving component. Piston (3), the piston (3) is disposed inside the oil storage tank (1), the piston (3) is connected to a second drive assembly, the piston (3) is driven by the second drive assembly to slide and seal inside the single-pass pipe (2); A liquid collecting pipe (4) is fixedly connected to the sealed end at the top of the single-pass pipe (2). The inner diameter of the liquid collecting pipe (4) is smaller than the inner diameter of the single-pass pipe (2). A heater (5) is fixedly installed on the liquid collecting pipe (4). The liquid collecting pipe (4) is made of a visible transparent material. The surface of the liquid collecting pipe (4) is marked with scale.

2. The crude oil water content monitoring device according to claim 1, characterized in that, The first driving component includes: A fixing frame (6) is fixedly connected to the top of the oil storage tank (1); Movable strip (7), the movable strip (7) is fixedly inserted into the single tube (2), and multiple limiting pins (8) are fixedly connected to the movable strip (7), the limiting pins (8) are slidably inserted into the fixed frame (6); The first electric cylinder (9) is fixedly mounted on the fixed frame (6), and the output shaft of the first electric cylinder (9) is fixedly connected to the movable bar (7).

3. The crude oil water content monitoring device according to claim 1, characterized in that, The first driving component includes: The second electric cylinder (10) is fixedly installed on the oil storage tank (1). The output shaft of the second electric cylinder (10) passes through the oil storage tank (1) and extends into the interior of the oil storage tank (1) before being fixedly connected to the bottom of the piston (3).

4. The crude oil water content monitoring device according to claim 1, characterized in that, The oil storage tank (1) has a placement groove (11) on its bottom surface. The piston (3) is located inside the placement groove (11). A connecting pipe (12) is fixedly inserted into the piston (3). A one-way valve (13) is fixedly installed at one end of the connecting pipe (12).

5. The crude oil water content monitoring device according to claim 1, characterized in that, The piston (3) has a fixing groove (14) on its top, and a heat insulation gasket (15) is fixedly connected inside the fixing groove (14).

6. The crude oil water content monitoring device according to claim 1, characterized in that, A U-shaped tube (16) is fixedly connected to the surface of the liquid collection tube (4), and a liquid pump (17) is fixedly installed on the U-shaped tube (16).

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