Separation and purification device for oil-water mixture

Abstract

A separation and purification device for an oil-water mixture is composed of a primary screening structure, a heating settling structure, a stirring structure and an exhaust structure, the heating settling structure is installed on the side face of the primary screening structure, the stirring structure is installed above the heating settling structure, and the stirring structure is installed on the side edge of the heating settling structure. The oil-water mixture firstly passes through the filter screen to filter insoluble substances in the oil-water mixture, the filter screen is hung on the oil storage tank, meanwhile, the infrared heater is arranged on the outer side of the dehydration tank to heat the oil-water mixture, the sedimentation efficiency is improved, the liquid pump is used for pumping out settled waste liquid, and the oil-water mixture is recycled. Then the emulsifier is put into the dehydration tank through the sealing top plug, then heating is performed to complete secondary separation and dehydration of the oil-water mixture, and in the whole dehydration process, an air pump is arranged to pump out waste gas in the dehydration tank. The oil-water mixture can be oil-polluted water, water-containing crude oil, kitchen oil and other oil-water mixtures.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil water mixture's separation purification technical field especially, a kind of separation purification device for oil water mixture. BACKGROUND

[0002] The crude oil extracted from well generally contains a certain amount of water, and the water content of crude oil is too much to cause waste, increase equipment and consume more energy in storage and transportation. Most of the water in crude oil contains salts, which accelerates the corrosion of equipment, containers and pipelines. In the process of petroleum refining, when water and crude oil are heated together, water will rapidly vaporize and expand, the pressure rises, which affects the normal operation of the refinery and the product quality, and even explosion may occur. Therefore, before the crude oil is exported, it needs to be dehydrated to make the water content not more than 0.5%. The device for dehydrating crude oil of the Chinese utility model patent with the patent number CN221094072U realizes the effect of rapid dehydration by driving the fixed rod to rotate, effectively speeds up the oil-water separation speed of crude oil, and thus achieves the effect of improving the working efficiency of the dehydration device. The protective disc is moved by the impact of crude oil, and the protective disc, protective frame, protective groove, spring and stabilizing rod are cooperated to realize the effect of buffering, which can protect the dehydration device from damage caused by excessive impact when crude oil enters, and thus prolongs the service life of the dehydration device.

[0003] The above device still has some problems when in use. Crude oil is a viscous liquid or semi-solid combustible material. In terms of chemical elements, it also contains a lot of impurities and insoluble precipitates or suspensions in oil, such as dust, iron filings, silt and some insoluble salts. Therefore, the insoluble substances in crude oil need to be filtered before the operation of dehydrating crude oil. At the same time, the water content in crude oil is high, and the separate sedimentation dehydration method is slow in dehydration efficiency, and the water content in the dehydrated crude oil is still high. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a separation and purification device for oil-water mixture, which is characterized by comprising a primary screening structure, a heating and sedimentation structure, a stirring structure and an exhaust structure. The primary screening structure is installed on the side of the heating and sedimentation structure. The heating and sedimentation structure is installed above the stirring structure. The heating and sedimentation structure is installed on the side of the stirring structure.

[0005] The primary screening structure comprises an oil storage tank, a filter screen, a frame and a handle. The filter screen is installed inside the oil storage tank. The frame is installed around the filter screen. The frame is hung around the oil storage tank. Handles are installed above the frames on both sides.

[0006] The heating settlement structure is composed of an oil delivery pump, an oil delivery connecting pipe A, an oil delivery connecting pipe B, a dehydration tank, an infrared heater A, an infrared heater B, a waste liquid pipe, a waste liquid collecting tank, a liquid pumping pump and a liquid pumping pipe.

[0007] The stirring structure is composed of a sealing top plug, a rotating handle, stirring blades and a rotating shaft.

[0008] The exhaust structure is composed of an exhaust pipe, a condensing tank, an air pumping pipe and an air pumping pump.

[0009] The oil-water mixture separation and purification device has the advantages that the insoluble substances in crude oil are filtered through the filter screen, the filter screen is mounted on the oil storage tank, the filter screen can be directly taken out and cleaned when cleaning is needed, the infrared heater is arranged outside the dehydration tank, the crude oil is heated when settlement and dehydration are performed, the settlement efficiency is increased, the waste liquid after settlement is pumped out by the liquid pumping pump, the emulsifier is put into the dehydration tank through the sealing top plug, the crude oil is heated to complete secondary dehydration, the exhaust pump is arranged to pump out the exhaust gas in the dehydration tank during the whole dehydration process, and the crude oil flows out from the liquid outlet pipe after dehydration.

[0010] The oil-water mixture separation and purification device has the advantages that the insoluble substances in crude oil are filtered through the filter screen, the filter screen is mounted on the oil storage tank, the filter screen can be directly taken out and cleaned when cleaning is needed, the infrared heater is arranged outside the dehydration tank, the crude oil is heated when settlement and dehydration are performed, the settlement efficiency is increased, the waste liquid after settlement is pumped out by the liquid pumping pump, the emulsifier is put into the dehydration tank through the sealing top plug, the crude oil is heated to complete secondary dehydration, the exhaust pump is arranged to pump out the exhaust gas in the dehydration tank during the whole dehydration process, and the crude oil flows out from the liquid outlet pipe after dehydration. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a whole structure schematic view of the oil-water mixture separation and purification device.

[0012] Figure 2 It is a whole structure schematic view of the oil-water mixture separation and purification device.

[0013] Figure 3 It is a local structure schematic view of the oil-water mixture separation and purification device.

[0014] As shown in the figure: 1. Oil storage tank, 2. Filter screen, 3. Frame, 4. Handle, 5. Oil pump, 6. Oil connection pipe A, 7. Oil connection pipe B, 8. Dehydration tank, 9. Sealing plug, 10. Rotary handle, 11. Stirring blade, 12. Infrared heater A, 13. Infrared heater B, 14. Waste liquid pipe, 15. Waste liquid collection tank, 16. Exhaust pipe, 17. Condensate tank, 18. Vacuum pipe, 19. Vacuum pump, 20. Liquid pump, 21. Rotating shaft, 22. Liquid outlet pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments: Example 1

[0016] like Figure 1 , Figure 2 As shown, filter screen 2 is installed inside oil storage tank 1. A frame 3 is installed around filter screen 2, and the frame 1 is hung around the oil storage tank 1. Handles 4 are installed above the frame 3 on both sides. An oil transfer pipe A6 is installed on one side of oil storage tank 1. An oil transfer pump 5 is connected to one side of oil transfer pipe A6. An oil transfer pipe B7 is connected to one side of oil transfer pump 5. A dehydration tank 8 is connected to one side of oil transfer pipe B7. An infrared heater A12 is installed on the outside of one side of dehydration tank 8, and an infrared heater B13 is installed on the outside of the other side of dehydration tank 8. A waste liquid pipe 14 is installed at the bottom of one side of dehydration tank 8. A liquid pump 20 is installed on one side of the waste liquid pipe 14, and a waste liquid collection tank 15 is installed on one side of the liquid pump 20. A liquid outlet pipe 22 is installed below one side of the dehydration tank 8. A sealing plug 9 is installed with an opening above the dehydration tank 8. A rotating handle 4 is installed above the sealing plug 9. A rotating shaft 21 is installed below the sealing plug 9. A stirring blade 11 is installed on the rotating shaft 21 in each of the four directions. An exhaust pipe 16 is installed above one side of the dehydration tank 8. One side of the exhaust pipe 16 is connected to the condenser tank 8. An air extraction pipe 18 is installed on one side of the condenser tank 8. An air extraction pump 19 is installed on one side of the air extraction pipe 18. Example 2

[0017] When using this utility model, water-containing crude oil flows into the storage tank 1 through the filter screen 2. The filtered crude oil is pumped into the dehydration tank 8 by the infusion pump 5. The infrared heaters A12 and B13 are started to heat the crude oil in the dehydration tank 8. After heating, the liquid pump 20 and the gas pump 19 are started to extract the gas from the dehydration tank 8. The gas is condensed through the condenser 17. The water that is separated after heating the crude oil is pumped into the waste liquid collection tank 15. The sealing plug 9 is opened and the emulsifier is added to the dehydration tank 8. The rotating handle 10 is turned to stir the stirring blade 11 to stir the emulsifier. The infrared heaters A12 and B13 are started again for heating. The dehydrated crude oil flows out through the storage tank 22.

[0018] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The various components mentioned in the utility model are common technology in the prior art, which should be understood by the skilled person in the industry. The utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for separating and purifying oil-water mixtures, characterized in that... It consists of a primary screening structure, a heating and settling structure, a stirring structure, and an exhaust structure. The heating and settling structure is installed on the side of the primary screening structure, and the stirring structure is installed above and beside the heating and settling structure. The primary screening structure comprises an oil storage tank, a filter screen, a frame, and handles. The filter screen is installed inside the oil storage tank, and a frame is installed around the filter screen, which is then hung around the perimeter of the oil storage tank. Handles are installed on the top of the left and right sides of the frame. The heating and settling structure comprises an oil pump, oil connection pipe A, oil connection pipe B, a dehydration tank, and an infrared heater. The device consists of device A, infrared heater B, waste liquid pipe, waste liquid collection tank, pump, and suction pipe. An oil transfer connection pipe A is installed on one side of the oil storage tank. An oil transfer pump is connected to one side of oil transfer pipe A. An oil transfer connection pipe B is connected to one side of the oil pump. A dehydration tank is connected to one side of oil transfer pipe B. Infrared heater A is installed on the exterior of one side of the dehydration tank, and infrared heater B is installed on the exterior of the other side of the dehydration tank. A waste liquid pipe is installed at the bottom of one side of the dehydration tank. A pump is installed on one side of the waste liquid pipe. A waste liquid collection tank is installed on one side of the pump. An outlet pipe is installed below one side of the dehydration tank.

2. The separation and purification device for oil-water mixtures according to claim 1, characterized in that... The stirring structure consists of a sealing top plug, a rotating handle, stirring blades, and a rotating shaft. The sealing top plug is installed in the opening above the dehydration tank, the rotating handle is installed above the sealing top plug, and the rotating shaft is installed below the sealing top plug. A stirring blade is installed in each of the four directions on the rotating shaft.

3. The separation and purification device for oil-water mixtures according to claim 1, characterized in that... The exhaust structure consists of an exhaust pipe, a condenser tank, an extraction pipe, and an extraction pump. An exhaust pipe is installed on the upper side of one side of the dehydration tank, and the exhaust pipe is connected to the condenser tank on one side. An extraction pipe is installed on one side of the condenser tank, and an extraction pump is installed on one side of the extraction pipe.

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