Dehydration treatment system for mineral oil

Abstract

The utility model aims to provide a dehydration treatment system for mineral oil, which is simple in structure, can be used for well dehydrating the mineral oil, ensures the separation treatment effect of the mineral oil and the quality of the mineral oil, is different from a centrifugal separation dehydration technology, and can be widely applied to dehydration of hydraulic oil and gear oil. The device is characterized by comprising a vacuum flash tower, an air inlet valve is arranged on the vacuum flash tower, a liquid level transmitter is arranged in the vacuum flash tower, a spray header is arranged at the upper end of the vacuum flash tower and is connected with a liquid inlet through a heater, the lower end of the vacuum flash tower is connected with a liquid outlet through an oil pump, and the liquid outlet is connected with a liquid outlet through an oil pump. And the upper end of the vacuum flash tower is sequentially connected with an air cooling radiator, a gas-water separator and a vacuum pump.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mineral oil processing, and specifically relates to a mineral oil dehydration treatment system. BACKGROUND

[0002] Mineral oil dehydration refers to the process of removing water in free state or emulsion state from mineral oil by physical or chemical methods to make the water content reach the specified standard. There are methods such as sedimentation dehydration, thermal chemical sedimentation dehydration, and electrochemical combined dehydration.

[0003] The dehydration method needs to be determined by test and technical and economic comparison according to the properties of mineral oil, water content, and emulsification degree. When the water content is high, two-stage dehydration method is often used, that is, chemical sedimentation method is used to reduce the water content to less than 30%, and then electro-dehydration method is used for treatment. Because the chemical dehydration requires a long time to achieve the purification oil quality, and it is difficult to operate the electro-dehydration treatment of high water content mineral oil. SUMMARY

[0004] The utility model discloses a mineral oil dehydration treatment system, which has a simple structure, can better perform mineral oil dehydration and other treatments, ensures the separation and treatment effect of mineral oil, and ensures the quality of mineral oil.

[0005] The above technical purpose of the utility model is realized by the following technical scheme.

[0006] A mineral oil dehydration treatment system, characterized in that it comprises a vacuum flash tower, an air inlet valve is arranged on the vacuum flash tower, a liquid level transmitter is arranged in the vacuum flash tower, a spray head is arranged on the upper end of the vacuum flash tower, the spray head is connected with a liquid inlet through a heater, an oil pump is connected with a liquid outlet at the lower end of the vacuum flash tower, and a forced air cooling radiator, a gas-water separator, and a vacuum pump are sequentially connected with the upper end of the vacuum flash tower.

[0007] A further feature is that the liquid inlet is connected to the heater via a first Y-shaped filter; the liquid inlet is connected to the first Y-shaped filter via an oil inlet quick-connect; an electric gate valve is provided between the heater and the first Y-shaped filter; the oil pump is connected to the liquid outlet via a filter; the filter is connected to the liquid outlet via an oil discharge solenoid valve; the oil discharge solenoid valve is connected to the liquid outlet via an oil discharge quick-connect; the electric gate valve and the oil discharge solenoid valve are connected internally via a circulation solenoid valve; the vacuum flash evaporator is connected to the oil pump via a ball valve and a second Y-shaped filter in sequence; a first buffer chamber is provided between the vacuum flash evaporator and the air-cooled radiator, and a second buffer chamber is provided between the air-cooled radiator and the gas-liquid separator; the gas-liquid separator, the first buffer chamber, and the second buffer chamber are respectively connected to a first drain valve, a second drain valve, and a third drain valve; the third drain valve is connected to the first drain valve; a level gauge is provided on the vacuum flash evaporator, and an oil discharge valve is provided at the bottom of the vacuum flash evaporator.

[0008] By adopting the above technical solution, a level transmitter is installed inside the vacuum flash tower, an air inlet valve is installed on the vacuum flash tower, and a spray head is installed at the upper end of the vacuum flash tower. The spray head is connected to the liquid inlet through a heater, and the liquid outlet is connected to the lower end of the vacuum flash tower through an oil pump. An air-cooled radiator, a gas-liquid separator, and a vacuum pump are sequentially connected to the upper end of the vacuum flash tower. The mineral oil undergoes a thorough demulsification, dehydration, and degassing separation process through the above system, completing the dehydration, degassing, and demulsification treatment of the mineral oil in one go, ensuring the separation effect of the mineral oil and guaranteeing the quality of the mineral oil. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the mineral oil dehydration treatment system of this utility model;

[0010] Figure 2 This is a schematic diagram illustrating the working principle of the mineral oil dehydration treatment system of this utility model.

[0011] In the attached diagram: 1-Vacuum flash evaporator; 2-Level transmitter; 3-Spray head; 4-Heater; 5-Liquid inlet; 6-Oil pump; 7-Liquid outlet; 8-Air-cooled radiator; 9-Gas-water separator; 10-Vacuum pump; 11-First Y-type filter; 12-Oil inlet quick connector; 13-Dynamic gate valve; 14-Filter; 15-Oil drain solenoid valve; 16-Oil drain quick connector; 17-Circulation solenoid valve; 18-Ball valve; 19-Second Y-type filter; 20-First buffer chamber; 21-Second buffer chamber; 22-First drain valve; 23-Second drain valve; 24-Third drain valve; 25-Level gauge; 26-Oil drain valve; 27-Air inlet valve; 28-Air filter; 29-Negative pressure sensor; 30-Vacuum gauge; 31-Safety valve; 32-Check valve; 33-Pressure sensor; 34-Temperature protection switch; 35-Temperature sensor. DETAILED DESCRIPTION

[0012] The specific embodiments of the present application will be further described below with reference to the accompanying drawings.

[0013] See Figure 1 A mineral oil dehydration treatment system, comprising a vacuum flash tower 1, the vacuum flash tower 1 is provided with an air inlet valve 27, a liquid level transmitter 2 is arranged in the vacuum flash tower 1, a spray head 3 is arranged at the upper end of the vacuum flash tower 1, the spray head 3 is connected with a liquid inlet 5 through a heater 4, an oil pump 6 is connected with a liquid outlet 7 at the lower end of the vacuum flash tower 1, a forced air cooling radiator 8, a gas-water separator 9 and a vacuum pump 10 are sequentially connected with the upper end of the vacuum flash tower 1, the mineral oil is subjected to a complete separation process of demulsification, dehydration and degassing through the above system, the dehydration, degassing and demulsification treatment of the mineral oil is completed at one time, the separation treatment effect of the mineral oil is ensured, and the quality of the mineral oil is ensured.

[0014] The liquid inlet 5 is connected with the heater 4 through a first Y-shaped filter 11, the liquid inlet 5 is connected with the first Y-shaped filter 11 through an oil inlet quick connector 12, an electric gate valve 13 is arranged between the heater 4 and the first Y-shaped filter 11, the flow of the mineral oil is effectively controlled, the impurities in the mineral oil are filtered out, and the processing effect of the mineral oil is ensured.

[0015] The oil pump 6 is connected with the liquid outlet 7 through a filter 14, the filter 14 is connected with the liquid outlet 7 through an oil discharge electromagnetic valve 15, the oil discharge electromagnetic valve 15 is connected with the liquid outlet 7 through an oil discharge quick connector 16, the flow of the mineral oil is effectively controlled, the impurities in the oil are filtered out, and the processing effect of the mineral oil is ensured.

[0016] The electric gate valve 13 and the oil discharge electromagnetic valve 15 are connected through a circulating electromagnetic valve 17 inside, the connection and control of the liquid outlet and the liquid inlet are realized, and the stability of the processing system is ensured.

[0017] The vacuum flash tower 1 is connected with the oil pump 6 through a ball valve 18 and a second Y-shaped filter 19 in sequence, and the flow channel of the mineral oil is effectively controlled.

[0018] A first buffer chamber 20 is arranged between the vacuum flash tower 1 and the forced air cooling radiator 8, and a second buffer chamber 21 is arranged between the forced air cooling radiator 8 and the gas-water separator 9, so as to ensure the vacuumizing effect of the vacuum flash tower 1, and thus ensure the separation effect of the mineral oil.

[0019] The gas-water separator 9, the first buffer chamber 20 and the second buffer chamber 21 are respectively connected with a first drain valve 22, a second drain valve 23 and a third drain valve 24, and the third drain valve 24 is connected with the first drain valve 22, so as to ensure the discharge of the liquid in the gas-water separator, the first buffer chamber and the second buffer chamber, ensure the water content of the air during vacuumizing, and thus ensure the separation effect of the mineral oil.

[0020] The vacuum flash tower 1 is provided with a liquid level gauge 25 for controlling the amount of oil liquid in the vacuum flash tower and ensuring effective processing and separation of the mineral oil.

[0021] The vacuum flash tower 1 is provided with an oil discharge valve 26 at the bottom for effectively controlling the flow of oil liquid.

[0022] See Figure 2 When the device is in operation, the oil liquid that needs to be dewatered enters the electric heater under the action of vacuum suction and the oil inlet pump, the heated oil enters the three-dimensional vacuum flash tower, under the action of the spraying device (spraying head spraying), the mineral oil is dispersed into mist, is sprayed onto the three-dimensional flash tower Baoer ring, forms a very thin oil film (thickness is 0.025mm), the oil film curve moves downward, generates a large aeration area and aeration time lag process, thereby performing a complete demulsification, dewatering and degassing separation process. The mixed gas formed by the evaporated water vapor, light hydrocarbon and the like enters the water-gas separation device, the strong wind condenser and the vacuum buffer chamber, the water vapor and the condensable gas are condensed and then discharged through the drainage device, the incondensable gas is discharged through the vacuum pump. Finally, the oil liquid from which the water and gas are removed is input into the oil tank through the oil inlet pump, the whole dewatering process is completed, and the combination of chemical dewatering and electric dewatering can take advantages of each other.

[0023] Differing from the centrifugal separation dewatering technology, the device can be widely applied to the dewatering of hydraulic oil and gear oil,

[0024] The above is the preferred embodiment of the utility model, and is not intended to limit the utility model in any form, and any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment are within the scope of the utility model technical scheme.

Claims

1. A mineral oil dewatering system characterized by: It includes vacuum flash tower (1), be provided with air inlet valve (27) on the vacuum flash tower (1), be provided with liquid level transmitter (2) in the vacuum flash tower (1), be provided with spray head (3) on the upper end of the vacuum flash tower (1), the spray head (3) is connected liquid inlet (5) by heater (4), the lower end of the vacuum flash tower (1) is connected liquid outlet (7) by oil pump (6), the upper end of the vacuum flash tower (1) is connected air-cooled radiator (8), gas-water separator (9) and vacuum pump (10) in proper order.

2. A mineral oil dewatering system according to claim 1, characterized in that: The liquid inlet (5) is connected the heater (4) by first Y-shaped filter (11), the liquid inlet (5) is connected the first Y-shaped filter (11) by oil inlet quick connector (12), the heater (4) and the first Y-shaped filter (11) are provided with electric gate valve (13) between.

3. A mineral oil dewatering system according to claim 2, wherein: The oil pump (6) is connected the liquid outlet (7) by filter (14), the filter (14) is connected the liquid outlet (7) by oil discharge electromagnetic valve (15), the oil discharge electromagnetic valve (15) is connected the liquid outlet (7) by oil discharge quick connector (16).

4. A mineral oil dewatering system according to claim 3, wherein: The inside between the electric gate valve (13) and the oil discharge electromagnetic valve (15) is connected by circulating electromagnetic valve (17).

5. A mineral oil dewatering system as claimed in claim 2, wherein: The vacuum flash tower (1) is connected the oil pump (6) by ball valve (18) and second Y-shaped filter (19) in proper order.

6. A mineral oil dewatering system according to claim 1, wherein: The vacuum flash tower (1) and the air-cooled radiator (8) are provided with first buffer chamber (20) between, the air-cooled radiator (8) and the gas-water separator (9) are provided with second buffer chamber (21) between.

7. A mineral oil dewatering system according to claim 6, wherein: The gas-water separator (9), the first buffer chamber (20), second buffer chamber (21) are connected first drain valve (22), second drain valve (23) and third drain valve (24) respectively.

8. A mineral oil dewatering system according to claim 7, wherein: The third drain valve (24) is connected above-mentioned first drain valve (22).

9. A mineral oil dewatering system according to any one of claims 1-8, characterized in that: The vacuum flash tower (1) is provided with liquid level meter (25), the vacuum flash tower (1) bottom is provided with oil drain valve (26).

Images