Crude oil electric dehydration device based on high-voltage high-frequency pulse

By adopting dual filtration system and high-voltage and high-frequency pulsed electric field technology in the crude oil-electric dewatering device, the problems of incomplete separation and long waiting time in the existing devices are solved, and efficient separation of crude oil water removal and impurities is achieved.

CN222795512UActive Publication Date: 2025-04-25LIAONING LONGFA PETROLEUM EQUIP CO LTD
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Patent Information

Application Number
CN202421641918.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-25
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

The existing crude oil-electric dehydration device uses a single precipitation method to separate impurities in crude oil, resulting in insufficient separation and long waiting time, which affects the dehydration effect and efficiency.

Method used

A crude oil-electric dehydration device based on high-voltage and high-frequency pulses is designed, and a dual filtration system is adopted, including a filter plate and a precipitation plate. The precipitation of solid particles is accelerated through metal salts, and the coalescence of water droplets is promoted through the coalescing plate, combining high-voltage and high-frequency pulse electric field technology to accelerate the separation of water molecules from crude oil molecules.

Benefits of technology

It effectively improves the pretreatment effect, shortens the precipitation time, improves the dehydration efficiency, and ensures efficient water removal and impurity separation of crude oil.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of crude oil electric dehydration, and discloses a crude oil electric dehydration device based on high-voltage high-frequency pulse, which comprises a box body, an oil inlet pipe is fixedly connected in the box body, a first isolation plate is fixedly connected on the inner wall of the box body, and a precipitation plate is fixedly connected on the inner wall of the box body. The outer wall of one side of the precipitation plate is fixedly connected to the outer wall of one side of a first isolation plate, the box body, one side of the first isolation plate and the upper surface of the precipitation plate form a filtering chamber, and the inner wall of the box body is fixedly connected with a filtering plate. According to the utility model, the pretreatment effect is effectively improved through double filtration of the filter plate, the precipitation plate, the precipitation tank and the precipitation chamber, so that the subsequent dehydration treatment is more effectively carried out, and metal salt enters the filter chamber through the adding pipe to be in contact with a mixture, so that solid particles in the mixture can be accelerated to precipitate, and the precipitation time is effectively saved; therefore, the dehydration efficiency is effectively improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of crude oil electric dehydration, in particular to a crude oil electric dehydration device based on high-voltage and high-frequency pulses. Background Art

[0002] The crude oil electric dehydration device is a device used to remove water from crude oil. It usually uses electric field technology to accelerate the water-oil separation process. A crude oil electric dehydration device based on high-voltage and high-frequency pulses. This device uses a high-voltage and high-frequency pulse electric field to act on the interface between crude oil and water, prompting water to be quickly separated from the crude oil, thereby achieving crude oil dehydration. Crude oil is usually mixed with water and other impurities. Before dehydrating the crude oil, it is usually necessary to pre-treat the crude oil in order to more effectively carry out subsequent dehydration. Existing devices usually use a single precipitation method to pre-treat the crude oil. Through the density difference of the particulate matter, the mixture is allowed to stand for a period of time to achieve this, allowing the solid particles to gradually settle to the bottom of the container, and then the supernatant liquid is separated. The existing single precipitation method is used to separate impurities in crude oil, which usually results in incomplete separation and requires a long waiting time. Therefore, a crude oil electric dehydration device based on high-voltage and high-frequency pulses is proposed. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a crude oil electric dehydration device based on high-voltage and high-frequency pulses, aiming to improve the existing device that uses a single precipitation method to separate impurities in crude oil, the separation is not thorough enough and the waiting time is long, resulting in poor crude oil dehydration effect and low efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crude oil electric dehydration device based on high-voltage and high-frequency pulses, comprising a box body, an oil inlet pipe is fixedly connected to the interior of the box body, a first isolation plate is fixedly connected to the inner wall of the box body, a sedimentation plate is fixedly connected to the inner wall of the box body, one side outer wall of the sedimentation plate is fixedly connected to one side outer wall of the first isolation plate, the box body and one side of the first isolation plate and the upper surface of the sedimentation plate constitute a filter chamber, the inner wall of the box body is fixedly connected to the filter plate, one side outer wall of the filter plate is fixedly connected to one side outer wall of the first isolation plate, the filter plate is installed inside the filter chamber, the box body and one side of the first isolation plate and the lower surface of the sedimentation plate constitute a sedimentation chamber, a plurality of sedimentation tanks are opened inside the sedimentation plate, a first pipeline is fixedly connected to the interior of the first isolation plate, and an adding mechanism is installed on the upper surface of the box body.

[0005] Preferably, the adding mechanism comprises a storage box, the lower surface of the storage box is fixedly connected to the upper surface of the box, an adding tube is fixedly connected inside the box, and an outer wall of one end of the adding tube is fixedly connected to the inside of the filter plate.

[0006] Preferably, a second isolation plate is fixedly connected to the inner wall of the box body, and the box body, the other side of the first isolation plate and one side of the second isolation plate constitute a coalescing chamber.

[0007] Preferably, a plurality of coalescing plates are fixedly connected to the inner wall of the box body, and the coalescing plates are installed inside the coalescing chamber.

[0008] Preferably, a second pipeline is fixedly connected to the interior of the second isolation plate, and the box body and the other side of the second isolation plate constitute a reaction chamber.

[0009] Preferably, a water outlet pipe is fixedly connected to the interior of the box body, and an oil outlet pipe is fixedly connected to the interior of the box body.

[0010] Preferably, a generator is installed on the upper surface of the box.

[0011] Preferably, the first pipeline, the second pipeline, the water outlet pipe and the oil outlet pipe are all installed with solenoid valves.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, the solid impurities in the mixture are filtered through the filter plate, and the solid particles in the mixture are further precipitated and filtered through the precipitation tank and the precipitation chamber in the precipitation plate. The double filtration effectively improves the effect of the pretreatment so that the subsequent dehydration treatment can be carried out more effectively. The metal salt is allowed to enter the filter chamber from the addition pipe to contact the mixture, so that the solid particles in the mixture can be precipitated faster, which effectively saves the precipitation time and effectively improves the dehydration efficiency.

[0014] 2. In the utility model, by setting up multiple coalescing plates, the crude oil is fully in contact with the coalescing plates, which promotes the coalescence of water droplets in the crude oil. It can be ensured that the water in the crude oil has undergone a coalescence process before entering the reaction chamber. Then, by controlling the generator, the water molecules are forced to separate from the crude oil molecules, thereby effectively improving the efficiency of oil-water separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a crude oil electric dehydration device based on high-voltage and high-frequency pulses proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of a first isolation plate of a crude oil electric dehydration device based on high voltage and high frequency pulses proposed by the utility model;

[0017] Figure 3 The utility model is a schematic diagram of a sedimentation tank of a crude oil electric dehydration device based on high-voltage and high-frequency pulses.

[0018] Legend:

[0019] 1. Box body; 2. Oil inlet pipe; 3. First isolation plate; 4. Sedimentation plate; 5. Filter chamber; 6. Filter plate; 7. Sedimentation chamber; 8. Sedimentation tank; 9. First pipeline; 10. Addition pipe; 11. Storage box; 12. Second isolation plate; 13. Coalescing chamber; 14. Coalescing plate; 15. Second pipeline; 16. Reaction chamber; 17. Water outlet pipe; 18. Oil outlet pipe; 19. Generator. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-Figure 3 The utility model provides an embodiment: a crude oil electric dehydration device based on high-voltage and high-frequency pulses, comprising a box body 1, an oil inlet pipe 2 is fixedly connected to the interior of the box body 1, a first isolation plate 3 is fixedly connected to the inner wall of the box body 1, a sedimentation plate 4 is fixedly connected to the inner wall of the box body 1, one side outer wall of the sedimentation plate 4 is fixedly connected to the one side outer wall of the first isolation plate 3, the box body 1 and one side of the first isolation plate 3 and the upper surface of the sedimentation plate 4 constitute a filter chamber 5, the inner wall of the box body 1 is fixedly connected to a filter plate 6, one side outer wall of the filter plate 6 is fixedly connected to the one side outer wall of the first isolation plate 3, the filter plate 6 It is installed inside the filter chamber 5, the box body 1 and one side of the first isolation plate 3 and the lower surface of the sedimentation plate 4 constitute a sedimentation chamber 7, a number of sedimentation tanks 8 are opened inside the sedimentation plate 4, the first isolation plate 3 is fixedly connected to the inside of the first isolation plate 3, an adding mechanism is installed on the upper surface of the box body 1, the inner wall of the box body 1 is fixedly connected to the second isolation plate 12, the box body 1 and the other side of the first isolation plate 3 and one side of the second isolation plate 12 constitute a condensation chamber 13, the second isolation plate 12 is fixedly connected to the inside of the second isolation plate 12 with a second pipeline 15, and the other side of the box body 1 and the second isolation plate 12 constitute a reaction chamber 16.

[0022] Specifically, the oil inlet pipe 2 is provided to facilitate the entry of crude oil into the interior of the casing 1, the first isolation plate 3 and the second isolation plate 12 are provided to effectively divide the space inside the casing 1 into agglomeration chamber 13 and reaction chamber 16, the casing 1 fixes the sedimentation plate 4, the filter plate 6 is provided to effectively filter the solid impurities inside the crude oil, the casing 1 fixes the first isolation plate 3, and the sedimentation tank 8 is an inverted truncated cone-shaped setting, which allows solid impurities to enter the sedimentation chamber 7 well and can effectively prevent the crude oil from carrying away the precipitated impurities when flowing out of the first pipeline 9.

[0023] Reference Figure 1 , Figure 2 The adding mechanism includes a storage box 11, the lower surface of the storage box 11 is fixedly connected to the upper surface of the box body 1, the interior of the box body 1 is fixedly connected with an adding pipe 10, and the outer wall of one end of the adding pipe 10 is fixedly connected to the interior of the filter plate 6.

[0024] Specifically, metal salt is placed inside the storage box 11, and the metal salt can accelerate the precipitation of solid particles.

[0025] Reference Figure 2 A plurality of coalescing plates 14 are fixedly connected to the inner wall of the box body 1 , and the coalescing plates 14 are installed inside the coalescing chamber 13 .

[0026] Specifically, the coalescing plate 14 can promote the coalescence of water droplets and improve the separation efficiency.

[0027] Reference Figure 1 , Figure 2 A water outlet pipe 17 is fixedly connected to the interior of the box body 1, an oil outlet pipe 18 is fixedly connected to the interior of the box body 1, and the first pipeline 9, the second pipeline 15, the water outlet pipe 17 and the oil outlet pipe 18 are all installed with solenoid valves.

[0028] Specifically, the installation of the solenoid valve can effectively control the opening and closing of the first pipeline 9 , the second pipeline 15 , the water outlet pipe 17 , and the oil outlet pipe 18 .

[0029] Reference Figure 1 A generator 19 is installed on the upper surface of the box 1.

[0030] Specifically, the generator 19 is a high-voltage and high-frequency pulse electric field generator, which dehydrates the crude oil inside the device by guiding the penetrating design of the electromagnetic waves generated by the electric field.

[0031] Working principle: When the device is needed to dehydrate crude oil, a mixture containing crude oil, water and other impurities is allowed to enter the interior of the casing 1 through the oil inlet pipe 2, and then enters the interior of the filter chamber 5. First, the mixture passes through the filter plate 6 to filter the solid impurities inside it, and then the filtered mixture is stored in the filter chamber 5 and the sedimentation chamber 7, so that the solid particles of the mixture that have not been filtered are precipitated. The solid particles pass through the sedimentation tank 8 in the sedimentation plate 4 and then enter the sedimentation chamber 7, thereby further filtering the solid particles in the mixture, effectively improving the effect of the pretreatment, so as to more effectively carry out the subsequent dehydration treatment, and by taking out the metal salt from the storage box 11, the metal salt is allowed to enter the interior of the filter chamber 5 through the addition tube 10, and contact with the mixture, so that the solid particles in the mixture can be accelerated to precipitate, effectively saving sedimentation time. The filtered crude oil contains a certain amount of water, and the first pipeline 9 is opened by controlling the solenoid valve to allow the crude oil to enter the coalescing chamber 13. Internally, by setting up a plurality of coalescing plates 14, the crude oil is in full contact with the coalescing plates 14, promoting the coalescence of water droplets in the crude oil, ensuring that the water in the crude oil has undergone a coalescence process before entering the reaction chamber 16, and effectively improving the subsequent efficiency of oil-water separation. By controlling the solenoid valve to open the second pipeline 15, the crude oil is allowed to enter the interior of the reaction chamber 16, and then through the generator 19, the electric field generated by the generator 19 passes through the wall of the box body 1 to the interior of the reaction chamber 16, and is guided by the electrode. The electric field will act on the interface between the crude oil and water, so that the water molecules are polarized and directed to move, thereby causing the water molecules to separate from the crude oil molecules. The separated water is precipitated at the bottom of the reaction chamber 16, and the oil floats above the water. Subsequently, the water outlet pipe 17 is opened by controlling the solenoid valve to discharge the separated water. After the discharge is completed, the water outlet pipe 17 is closed, and the oil outlet pipe 18 is opened by controlling the solenoid valve to discharge the dehydrated crude oil, thereby facilitating the transportation of the crude oil and effectively reducing the transportation cost.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crude oil electric dehydration device based on high-voltage and high-frequency pulses, comprising a housing (1), characterized in that: The interior of the box (1) is fixedly connected to an oil inlet pipe (2); the inner wall of the box (1) is fixedly connected to a first isolation plate (3); the inner wall of the box (1) is fixedly connected to a sedimentation plate (4); one side outer wall of the sedimentation plate (4) is fixedly connected to one side outer wall of the first isolation plate (3); the box (1) and one side of the first isolation plate (3) and the upper surface of the sedimentation plate (4) form a filter chamber (5); the inner wall of the box (1) is fixedly connected to a filter plate (6); one side outer wall of the filter plate (6) is fixedly connected to one side outer wall of the first isolation plate (3); the filter plate (6) is installed inside the filter chamber (5); the box (1) and one side of the first isolation plate (3) and the lower surface of the sedimentation plate (4) form a sedimentation chamber (7); a plurality of sedimentation tanks (8) are provided inside the sedimentation plate (4); the interior of the first isolation plate (3) is fixedly connected to a first pipeline (9); and an adding mechanism is installed on the upper surface of the box (1).

2. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 1 is characterized in that: The adding mechanism comprises a storage box (11), the lower surface of the storage box (11) is fixedly connected to the upper surface of the box body (1), the interior of the box body (1) is fixedly connected with an adding pipe (10), and the outer wall of one end of the adding pipe (10) is fixedly connected to the interior of the filter plate (6).

3. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 1 is characterized in that: A second isolation plate (12) is fixedly connected to the inner wall of the box body (1), and the box body (1), the other side of the first isolation plate (3) and one side of the second isolation plate (12) form a coalescing chamber (13).

4. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 1 is characterized in that: A plurality of coalescing plates (14) are fixedly connected to the inner wall of the box body (1), and the coalescing plates (14) are installed inside the coalescing chamber (13).

5. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 3 is characterized in that: A second pipeline (15) is fixedly connected to the interior of the second isolation plate (12), and the box body (1) and the other side of the second isolation plate (12) form a reaction chamber (16).

6. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 5, characterized in that: A water outlet pipe (17) is fixedly connected to the interior of the box body (1), and an oil outlet pipe (18) is fixedly connected to the interior of the box body (1).

7. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 6, characterized in that: A generator (19) is installed on the upper surface of the box (1).

8. The crude oil electric dehydration device based on high voltage and high frequency pulse according to claim 6, characterized in that: The first pipeline (9), the second pipeline (15), the water outlet pipe (17) and the oil outlet pipe (18) are all equipped with solenoid valves.