Oil-water separation device with spiral baffles
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-07
AI Technical Summary
[0005]为了减少油水分离装置容易受到杂质堵塞导流板的问题，本申请提供一种带有螺旋导流板的油水分离装置
1.脱水箱的设置为螺旋导流板和清理组件提供了安装空间，脱水腔为油水分离提供了反应空间，定位块的设置为螺旋导流板提供了支撑，工作人员可以通过进料管向脱水腔内加入矿物废油，工作人员可以通过进药管向脱水腔内加入破乳剂，破乳剂可以改变油水混合的物理形态，使得油水混合物内的水和油分离，分离后的油水混合物由于不同的密度从而发生分层现象，油会上浮在水的上方，螺旋导流板的设置可以对矿物废油起到导流作用，延长矿物废油和破乳剂的接触反应时长，同时，螺旋导流板还可以减少矿物废油注入脱水腔时与脱水腔内侧壁的冲击，减少废油被冲击打散并破坏油水分层的概率，为油水重力分离提供了稳定的环境，提高了油水分离装置的工作效率；工作人员打开出油阀，使得分层后的油通过出油管离开脱水腔，清理组件启动可以清理螺旋导流板上堆积的胶状杂质，减少胶状杂质堵塞螺旋导流板的概率，延长了油水分离装置的使用寿命。
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Figure CN224598791U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of petroleum refining equipment technology, and in particular to an oil-water separation device with a spiral guide plate. Background Technology
[0002] In the mineral waste oil purification process, the mineral waste oil recovered through distillation contains water. In order to improve the purity of the recovered mineral waste oil, an oil-water separation device needs to be designed.
[0003] One type of oil-water separation device includes a dehydration tank, a guide plate, and a discharge pipe. Workers inject mineral waste oil and demulsifier into the dehydration tank. The mineral waste oil and demulsifier flow into the dehydration tank through the guide plate. The demulsifier and mineral waste oil undergo a chemical reaction, causing the oil and water in the mineral waste oil to separate. Workers open the discharge pipe to allow water and oil to flow out sequentially from the discharge pipe.
[0004] However, in the existing oil-water separator, the dead corners of the guide plate are prone to accumulating gelatinous impurities, which can cause blockages in the flow channel. This requires staff to regularly disassemble the machine to clean the blockages, reducing the efficiency of the oil-water separator. Utility Model Content
[0005] To reduce the problem of impurities clogging the guide plate in oil-water separators, this application provides an oil-water separator with a spiral guide plate.
[0006] This application provides an oil-water separation device with a spiral guide plate, which adopts the following technical solution: An oil-water separator with a spiral guide plate, comprising: The dehydration tank is fixedly installed on the ground. A dehydration chamber is vertically installed inside the dehydration tank. A positioning block is fixedly installed on the inner side wall of the dehydration chamber. A feed pipe is installed at the top of the dehydration tank. A drug inlet pipe is installed at the top of the dehydration tank. An oil outlet pipe is horizontally fixed around the dehydration tank. An oil outlet valve is installed on the oil outlet pipe. The spiral guide plate is rotatably installed inside the dewatering chamber. The outer side of the spiral guide plate is in contact with the inner sidewall of the dewatering chamber. The height of the spiral guide plate is higher than that of the positioning block, and the positioning block provides support for the spiral guide plate. The cleaning component, located on the dehydration tank, is used to clean impurities accumulated on the spiral guide plate.
[0007] By adopting the above technical solution, the dehydration tank provides installation space for the spiral guide plate and cleaning components, the dehydration chamber provides reaction space for oil-water separation, and the positioning block provides support for the spiral guide plate. Workers can add mineral waste oil into the dehydration chamber through the feed pipe and demulsifier through the chemical inlet pipe. The demulsifier can change the physical state of the oil-water mixture, causing the water and oil in the mixture to separate. The separated oil-water mixture undergoes stratification due to their different densities, with the oil floating on top of the water. The spiral guide plate can effectively clean the mineral waste oil. The waste oil acts as a guide, prolonging the contact reaction time between the mineral waste oil and the demulsifier. At the same time, the spiral guide plate can reduce the impact of the mineral waste oil on the inner wall of the dehydration chamber when it is injected into the dehydration chamber, reducing the probability of the waste oil being dispersed by the impact and breaking the oil-water separation. This provides a stable environment for gravity separation of oil and water, improving the working efficiency of the oil-water separator. When the operator opens the oil outlet valve, the separated oil leaves the dehydration chamber through the oil outlet pipe. The cleaning component can remove the gelatinous impurities accumulated on the spiral guide plate, reducing the probability of gelatinous impurities clogging the spiral guide plate and extending the service life of the oil-water separator.
[0008] Optionally, a vertical chute is provided on the dehydration tank, and the chute communicates with the dehydration chamber. The cleaning components include: The motor is vertically fixed on the dehydration tank, and the output end of the motor extends through the dehydration tank into the dehydration chamber. The drive shaft has one end fixedly connected to the output end of the motor and the other end fixedly connected to the inner circumference of the spiral guide plate. The slider is set inside the groove and is slidably connected to the dehydration tank; The scraper has one end fixedly connected to the slider, and the other end is embedded in the spiral groove of the spiral guide plate, with the scraper and the spiral groove closely fitting together.
[0009] By adopting the above technical solution, the rotation of the motor can drive the transmission shaft to rotate synchronously, and the rotation of the transmission shaft can drive the spiral guide plate to rotate synchronously around the central axis of the transmission shaft. The rotation of the spiral guide plate can drive the scraper and the slider to move spirally along the spiral groove. However, the scraper and the slider are limited by the groove and can only move along the length of the groove. The movement of the scraper will scrape off the gelatinous impurities accumulated on the spiral guide plate, thereby cleaning the spiral guide plate, reducing the probability of the spiral guide plate being blocked by gelatinous impurities, and extending the service life of the spiral guide plate.
[0010] Optionally, a flow control valve may be installed on the drug inlet pipe.
[0011] By adopting the above technical solution, staff can control the dosage of demulsifier added to the dehydration chamber through a flow control valve, reducing the occurrence of oil contamination caused by excessive demulsifier, and also saving the cost of demulsifier.
[0012] Optionally, a cleaning door is rotatably installed at the lower end of the dehydration tank, and the height of the cleaning door is lower than that of the oil outlet pipe.
[0013] By adopting the above technical solution, the staff can open the cleaning door to clean the gelatinous impurities scraped off from the spiral guide plate by the cleaning component from the dehydration chamber. The height of the cleaning door is lower than the oil outlet pipe, so that the impurities accumulated near the cleaning door will not affect the oil leaving the dehydration chamber through the oil outlet pipe.
[0014] Optionally, a water outlet pipe is vertically fixed at the lower end of the cleaning door, and a water outlet valve is installed on the water outlet pipe.
[0015] By adopting the above technical solution, the operator can open the water outlet valve, allowing the water in the dehydration chamber to flow out from the water outlet pipe first. When the lowest point of the oil level in the dehydration chamber drops to the position of the oil outlet pipe, the operator can open the oil outlet valve, allowing the dehydrated oil to leave the dehydration chamber through the oil outlet pipe. The combined use of the water outlet pipe and the oil outlet pipe allows the oil and water to leave the device through different pipes after separation, making it convenient for the operator to collect the dehydrated oil and water.
[0016] Optionally, a heater may be fixedly installed on the dehydration tank.
[0017] By adopting the above technical solution, the heater can heat the oil-water mixture in the dehydration chamber. Heating will reduce the viscosity of the oil and accelerate the movement speed of the oil-water mixture on the spiral guide plate. The heater can also reduce the emulsification effect of the oil-water mixture and accelerate the separation of oil and water in the oil-water mixture.
[0018] Optionally, a spiral baffle is provided around the outside of the spiral guide plate, and the height of the spiral baffle is lower than the height of the spiral groove.
[0019] By adopting the above technical solution, the spiral baffle can guide the oil-water mixture added to the dehydration chamber, reduce the occurrence of the oil-water mixture leaving the spiral guide plate directly through the chute, and increase the contact reaction time between the oil-water mixture and the demulsifier.
[0020] Optionally, a limit block is fixedly installed at one end of the spiral groove near the positioning block.
[0021] By adopting the above technical solution, when the scraper moves to one end of the spiral groove near the positioning block, the limiting block can support the scraper, preventing the scraper from detaching from the spiral guide plate.
[0022] In summary, this utility model embodiment provides an oil-water separation device with a spiral guide plate, which includes at least one of the following beneficial technical effects: 1. The dehydration tank provides installation space for the spiral guide plate and cleaning components. The dehydration chamber provides reaction space for oil-water separation. The positioning block provides support for the spiral guide plate. Workers can add waste mineral oil into the dehydration chamber through the feed pipe and demulsifier through the chemical inlet pipe. The demulsifier changes the physical state of the oil-water mixture, causing the water and oil to separate. The separated oil-water mixture separates due to their different densities, with the oil floating on top of the water. The spiral guide plate guides the waste mineral oil... The spiral flow plate extends the contact reaction time between the waste mineral oil and the demulsifier. Simultaneously, it reduces the impact of the waste oil on the inner wall of the dehydration chamber when injected, decreasing the probability of the oil being broken up and the oil-water separation process. This provides a stable environment for gravity separation of oil and water, improving the efficiency of the oil-water separator. When the operator opens the oil outlet valve, the separated oil leaves the dehydration chamber through the outlet pipe. The cleaning component then removes the accumulated gelatinous impurities on the spiral flow plate, reducing the probability of these impurities clogging the plate and extending the service life of the oil-water separator.
[0023] 2. The operator can open the water outlet valve to allow the water in the dehydration chamber to flow out through the water outlet pipe first. When the lowest point of the oil level in the dehydration chamber drops to the position of the oil outlet pipe, the operator can open the oil outlet valve to allow the dehydrated oil to leave the dehydration chamber through the oil outlet pipe. By using the water outlet pipe and the oil outlet pipe in combination, the oil and water can be separated and leave the device through different pipes, making it convenient for the operator to collect the dehydrated oil and water. Attached Figure Description
[0024] Figure 1 A schematic diagram of the structure of an oil-water separation device with a spiral guide plate provided for an embodiment of this utility model; Figure 2 A schematic diagram of the cleaning component structure in an oil-water separation device with a spiral guide plate provided for an embodiment of this utility model; Figure 3 A schematic diagram of the cleaning door structure in an oil-water separation device with a spiral guide plate provided for an embodiment of this utility model; Figure 4 A schematic cross-sectional view of the dehydration tank in an oil-water separation device with a spiral guide plate, provided for an embodiment of this utility model.
[0025] Explanation of the markings in the image: 1. Cleaning components; 11. Motor; 12. Drive shaft; 13. Slider; 14. Scraper; 21. Spiral guide plate; 22. Positioning block; 23. Feed pipe; 24. Drug inlet pipe; 25. Flow control valve; 26. Oil outlet pipe; 27. Oil outlet valve; 28. Heater; 29. Support leg; 30. Limiting block; 31. Water outlet pipe; 32. Water outlet valve; 33. Dehydration chamber; 34. Slide groove; 35. Spiral groove; 36. Storage chamber; 37. Dehydration tank; 38. Spiral baffle; 39. Cleaning door. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0027] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 This application discloses an oil-water separation device with a spiral guide plate, comprising: a dehydration tank 37, a spiral guide plate 21, and a cleaning component 1; the dehydration tank 37 is fixedly installed on the ground, and a dehydration chamber 33 is vertically installed inside the dehydration tank 37. A positioning block 22 is fixedly installed on the inner side wall of the dehydration chamber 33. A feed pipe 23 and a drug inlet pipe 24 are installed at the upper end of the dehydration tank 37. An oil outlet pipe 26 is horizontally fixedly installed around the dehydration tank 37, and an oil outlet valve 27 is installed on the oil outlet pipe 26. The spiral guide plate 21 is rotatably installed inside the dehydration chamber 33, with the outer side of the spiral guide plate 21 in contact with the inner side wall of the dehydration chamber 33. The height of the spiral guide plate 21 is higher than that of the positioning block 22, and the positioning block 22 provides support for the spiral guide plate 21. The cleaning component 1 is installed on the dehydration tank 37 and can clean the impurities accumulated on the spiral guide plate 21.
[0028] In this embodiment, the dehydration tank 37 is rectangular, and four sets of support legs 29 are vertically fixed at the bottom of the dehydration tank 37. The support legs 29 are respectively fixed at corresponding points on the lower surface of the dehydration tank 37. The dehydration chamber 33 is cylindrical. The feed pipe 23 is cylindrical, and the operator can add treated mineral waste oil into the dehydration chamber 33 through the feed pipe 23. The chemical inlet pipe 24 is cylindrical, and a funnel is provided at the upper end of the chemical inlet pipe 24. The operator can inject demulsifier into the dehydration chamber 33 through the chemical inlet pipe 24. The demulsifier can destroy the emulsification of oil and water in the mineral waste oil, causing the oil and water in the mineral waste oil to separate into layers. A flow control valve 25 is provided on the chemical inlet pipe 24, and the operator can control the flow through the flow control valve. 25. The dosage of demulsifier entering the dehydration chamber 33 is controlled to reduce the occurrence of excessive demulsifier remaining in the oil-water mixture. The flow control principle of the flow controller is existing technology in this field, so it is not specifically limited in this embodiment. The oil outlet pipe 26 is cylindrical and communicates with the bottom of the dehydration chamber 33, that is, most of the liquid in the dehydration chamber 33 can flow out through the oil outlet pipe 26. A cleaning door 39 is rotatably provided at the lower end of the dehydration tank 37. The height of the cleaning door 39 is lower than that of the oil outlet pipe 26. The cleaning door 39 is cylindrical and has a small storage cavity 36 at the end of the cleaning door 39 near the oil outlet pipe 26. A water outlet pipe 31 is vertically fixed at the lower end of the cleaning door 39, and a water outlet valve 32 is provided on the water outlet pipe 31 so that the cleaning chamber... The liquid in the dehydration chamber 33 can leave the dehydration chamber 33 through the water outlet pipe 31. When the oil-water mixture separates into layers, because the density of water is greater than that of oil, the oil layer floats above the water layer. The operator can open the water outlet valve 32, allowing the lower water layer in the dehydration chamber 33 to leave through the water outlet pipe 31. When the highest point of the water layer is exactly at the highest point of the storage chamber 36, the operator closes the water outlet valve 32 and opens the oil outlet valve 27, allowing the oil layer in the dehydration chamber 33 to leave through the oil outlet pipe 26. By controlling the oil outlet pipe 26 and the water outlet pipe 31, the operator allows the oil layer and water layer to leave the dehydration chamber 33 sequentially, achieving the purpose of oil-water separation of mineral waste oil. The working principle of the oil outlet valve 27 and the water outlet valve 32 is existing technology in this field. Therefore, no specific limitations are made in the embodiments of this application; the cleaning component 1 can clean the gelatinous impurities accumulated on the spiral guide plate 21 after being cleaned. The cleaned gelatinous impurities fall to the bottom of the dehydration chamber 33. The staff can start the cleaning component 1 periodically, open the cleaning door 39 and clean the gelatinous impurities, which reduces the impact of impurities clogging the oil-water separation device and extends the service life of the oil-water separation device; a heater 28 is fixedly installed on the dehydration tank 37. The heater 28 is rectangular. The heater 28 can heat the dehydration chamber 33 after being started. Heating can reduce the viscosity of the mineral waste oil, increase the flow speed of the mineral waste oil on the spiral guide plate, and reduce the emulsification of the oil-water mixture, thereby improving the efficiency of oil-water separation;The spiral guide plate 21 can guide the mineral waste oil added to the dehydration chamber 33, prolonging the reaction time between the mineral waste oil and the demulsifier, reducing the impact of the mineral waste oil on the inner wall of the dehydration chamber 33 when it is injected, reducing the probability of the waste oil being dispersed by the impact and breaking the oil-water separation, and improving the efficiency of the oil-water separation device in separating the mineral waste oil.
[0029] In practical use, the operator injects an oil-water mixture into the dehydration chamber 33 through the feed pipe 23, and injects a demulsifier into the dehydration chamber 33 through the chemical inlet pipe 24. The operator controls the flow rate of the demulsifier through the flow control valve 25. The demulsifier and the oil-water mixture react upon contact and flow towards the lower end of the dehydration chamber 33 through the conduction of the spiral guide plate 21. The heater 28 is activated and heats the oil-water mixture. The oil-water mixture entering the bottom of the dehydration chamber 33 will quickly separate into oil and water due to the combined effects of heating and the demulsifier, with the oil layer floating to the water layer. When the water outlet valve 32 is opened, the water in the dehydration chamber 33 is discharged through the water outlet pipe 31. When the water level drops to the highest point of the storage chamber 36, the water outlet valve 32 is closed and the oil outlet valve 27 is opened. The oil layer in the dehydration chamber 33 is discharged through the oil outlet pipe 26, thus completing the separation of the oil-water mixture. The cleaning component 1 is opened periodically. The cleaning component 1 scrapes the gelatinous impurities on the spiral guide plate 21 to the bottom of the dehydration chamber 33. The cleaning door is then opened to clean the impurities, reducing the probability of the oil-water separator being blocked by impurities.
[0030] Combination Figure 1 , Figure 2 and Figure 4 In one specific embodiment, there is a motor 11, a drive shaft 12, a slider 13, and a scraper 14. The motor 11 is vertically fixed on the dehydration tank 37, and the output end of the motor 11 extends through the dehydration tank 37 into the dehydration chamber 33. One end of the drive shaft 12 is fixedly connected to the output end of the motor 11, and the other end of the drive shaft 12 is fixedly connected to the inner circumference of the spiral guide plate 21. The slider 13 is disposed in the groove 34 and is slidably connected to the dehydration tank 37. One end of the scraper 14 is fixedly connected to the slider 13, and the other end of the scraper 14 is embedded in the spiral groove 35 of the spiral guide plate 21, with the scraper 14 and the spiral groove 35 in close contact.
[0031] In this embodiment, the rotation of the output end of the motor 11 is not affected by the dehydration tank 37. The transmission shaft 12 is cylindrical, and the rotation of the output end of the motor 11 can drive the transmission shaft 12 to rotate synchronously. The rotation of the transmission shaft 12 can drive the spiral guide plate 21 to rotate synchronously. The slider 13 is cuboid, and the groove 34 is cuboid. One side of the groove 34 is parallel to the central axis of the transmission shaft 12. The scraper 14 is cuboid, and the scraper 14 and the slider 13 are restricted by the groove 34 and can only move along the length of the groove 34. When the spiral guide plate 21 rotates, it applies a vertical thrust to the scraper 14, thereby driving the scraper 14 and the slider 13 to move along the length of the groove 34. The scraper 14 moves along the spiral groove 35 and scrapes the gelatinous impurities attached to the surface of the spiral guide plate 21, allowing them to fall off smoothly and into the bottom of the dehydration chamber 33, avoiding the accumulation and blockage of impurities. A spiral guide plate 21 is provided, and a spiral baffle 38 is provided around the outside of the spiral guide plate 21. The height of the spiral baffle 38 is lower than the height of the spiral groove 35. The spiral baffle 38 can guide the oil-water mixture and reduce the probability that the oil-water mixture will enter the slide trough 34 and leave the spiral guide plate 21 directly. A limit block 30 is fixedly provided at one end of the spiral groove 35 near the positioning block 22. The limit block 30 is set in the shape of a cuboid and is fixedly set on the lower surface of the spiral guide plate 21. When the scraper 14 moves to the end of the spiral groove 35 near the positioning block 22, the limit block 30 can support the scraper 14 and prevent the scraper 14 from detaching from the spiral guide plate 21. It should be noted that the slider 13 and the scraper 14 should be moved to the highest point of the slide trough 34 before use, that is, the scraper 14 will not affect the liquid entering the dehydration chamber 33 through the feed pipe 23 and the drug inlet pipe 24.
[0032] In actual use, the operator starts the motor 11. The rotation of the motor 11 drives the transmission shaft 12 to rotate synchronously. The rotation of the transmission shaft 12 drives the spiral guide plate 21 to rotate. The rotation of the spiral guide plate 21 will apply a thrust to the scraper 14, causing the scraper 14 and the slider 13 to move along the slide groove 34 towards the positioning block 22. At the same time, the scraper 14 will scrape off the gelatinous impurities attached to the surface of the spiral guide plate 21 as it moves. The gelatinous impurities fall to the bottom of the dehydration chamber 33 and are cleaned by the operator periodically.
[0033] It should be noted that the motor 11, flow control valve 25, and heater 28 are electrically connected to an external power source. The oil-water separator with spiral guide plate is equipped with a PLC control panel. The PLC control panel is electrically connected to the motor 11, flow control valve 25, and heater 28. The motor 11 can be rotated, the flow control valve 25 can be started, and the heater 28 can be heated through the PLC control panel.
[0034] The implementation principle of this application is as follows: The operator injects an oil-water mixture into the dehydration chamber 33 through the feed pipe 23. The operator also injects a demulsifier into the dehydration chamber 33 through the inlet pipe 24 and the flow control valve 25. The operator activates the heater 28, which heats the oil-water mixture. The demulsifier and the oil-water mixture move towards the bottom of the dehydration chamber 33 through the conduction of the spiral guide plate 21. Under the combined action of heating and the demulsifier, the oil-water mixture rapidly separates, with the oil layer floating above the water layer. The operator opens the outlet valve 32, and the water layer is discharged through the outlet pipe 31. When the water layer drops to the highest point of the storage chamber 36, the operator closes the outlet valve 32 and opens the oil outlet valve 27. The oil layer in the dehydration chamber 33 flows through the oil outlet pipe 26. Discharge; After the oil-water separator has been working for a period of time, the operator starts the motor 11. The rotation of the motor 11 drives the transmission shaft 12 and the spiral guide plate 21 to rotate synchronously. The rotation of the spiral guide plate 21 drives the slider 13 and the scraper 14 to move along the slide groove 34 towards the positioning block 22. During the movement, the scraper 14 continuously scrapes off the gelatinous impurities on the surface of the spiral guide plate 21. The scraped gelatinous impurities fall into the bottom of the dewatering chamber 33. When the scraper 14 moves to the point of contact with the limit block 30, the operator controls the motor 11 to rotate in the opposite direction. The rotation of the motor 11 drives the spiral guide plate 21 to move in the opposite direction and return to the initial position for easy cleaning next time. The operator opens the cleaning door 39 to remove the gelatinous impurities at the bottom of the dewatering chamber 33.
[0035] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. An oil-water separator with a spiral guide plate, characterized in that, include: A dehydration tank (37) is fixedly installed on the ground. A dehydration chamber (33) is vertically installed inside the dehydration tank (37). A positioning block (22) is fixedly installed on the inner side wall of the dehydration chamber (33). A feed pipe (23) is installed at the upper end of the dehydration tank (37). A drug inlet pipe (24) is installed at the upper end of the dehydration tank (37). An oil outlet pipe (26) is horizontally fixed on the periphery of the dehydration tank (37). An oil outlet valve (27) is installed on the oil outlet pipe (26). A spiral guide plate (21) is rotatably disposed in the dewatering chamber (33). The outer side of the spiral guide plate (21) is in contact with the inner sidewall of the dewatering chamber (33). The height of the spiral guide plate (21) is higher than that of the positioning block (22). The positioning block (22) provides support for the spiral guide plate (21). Cleaning component (1), which is disposed on the dehydration tank (37), is capable of cleaning the impurities accumulated on the spiral guide plate (21).
2. The oil-water separator with a spiral guide plate according to claim 1, characterized in that: A vertical groove (34) is provided on the dehydration tank (37), the groove (34) is connected to the dehydration chamber (33), and the cleaning component (1) includes: The motor (11) is vertically fixed on the dehydration tank (37), and the output end of the motor (11) extends through the dehydration tank (37) into the dehydration chamber (33); A drive shaft (12) is provided, one end of which is fixedly connected to the output end of the motor (11), and the other end of which is fixedly connected to the inner circumferential side of the spiral guide plate (21). A slider (13) is disposed in the groove (34) and is slidably connected to the dehydration tank (37); Scraper (14), one end of which is fixedly connected to the slider (13), and the other end of which is embedded in the spiral groove (35) of the spiral guide plate (21), and the scraper (14) and the spiral groove (35) are closely fitted.
3. The oil-water separator with a spiral guide plate according to claim 1, characterized in that: A flow control valve (25) is provided on the drug inlet pipe (24).
4. The oil-water separator with a spiral guide plate according to claim 1, characterized in that: The lower end of the dehydration tank (37) is rotatably equipped with a cleaning door (39), and the height of the cleaning door (39) is lower than that of the oil outlet pipe (26).
5. An oil-water separator with a spiral guide plate according to claim 4, characterized in that: A water outlet pipe (31) is vertically fixed at the lower end of the cleaning door (39), and a water outlet valve (32) is installed on the water outlet pipe (31).
6. The oil-water separator with a spiral guide plate according to claim 1, characterized in that: A heater (28) is fixedly installed on the dehydration tank (37).
7. An oil-water separator with a spiral guide plate according to claim 2, characterized in that: A spiral baffle (38) is provided around the outside of the spiral guide plate (21), and the height of the spiral baffle (38) is lower than the height of the spiral groove (35).
8. An oil-water separator with a spiral guide plate according to claim 2, characterized in that: A limiting block (30) is fixedly provided at one end of the spiral groove (35) near the positioning block (22).