A kind of anti-combustion oil deacidification dehydration filter device

Abstract

The utility model provides a kind of anti-flame oil deacidification dehydration filter device, comprising: dry ion resin deacidification filter, nitrogen membrane dehydrator and fine filter, the deacidification oil outlet of dry ion resin deacidification filter is connected by pipeline with the oil inlet interface of nitrogen membrane dehydrator, the oil outlet interface of nitrogen membrane dehydrator is connected by pipeline with the fine filter oil inlet of fine filter connection.This anti-flame oil deacidification dehydration filter device adopts the scheme of deacidification+dehydration+fine filter combination, simple process, easy to operate, can substantially improve the removal effect of moisture, particulate impurities, acidic substances in contaminated oil in anti-flame oil.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, specifically to a fire-resistant oil deacidification and dehydration filtration device. Background Technology

[0002] Fire-resistant oil is composed of phosphate esters. It is transparent and uniform in appearance. New oil is slightly yellow or orange-red, free of sediment, with low volatility, good anti-wear properties, good stability, and physical stability. The fire-resistant oil used in the electro-hydraulic control system of power plants is a fire-resistant pure phosphate ester liquid. Flame retardancy is one of the most prominent characteristics of phosphate esters. It can burn even at extremely high temperatures, but it does not propagate the flame or can quickly self-extinguish after ignition. Phosphate esters have high thermal oxidation stability.

[0003] Currently, fire-resistant oil is prone to contamination with water, particulate impurities, acidic substances, and other pollutants during actual use. Therefore, in the actual purification process, it is necessary to efficiently remove contaminants such as water, particulate impurities, and acidic substances from the fire-resistant oil. Existing purification devices for treating contaminated fire-resistant oil mainly have the following drawbacks: (1) complex processes and low removal efficiency of water, particulate impurities, and acidic substances; (2) low degree of integration, multiple functions cannot be integrated into the same device, occupying a large space, complex layout, and high operating costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes a fire-resistant oil deacidification and dehydration filtration device. It adopts a combination of deacidification, dehydration, and fine filtration, which is simple in process and can significantly improve the removal effect of water, particulate impurities, and acidic substances from contaminated oil in fire-resistant oil.

[0005] To achieve the above technical solution, this utility model provides a fire-resistant oil deacidification and dehydration filtration device, comprising: a dry ion exchange resin deacidification filter, a nitrogen membrane dehydrator, and a fine filter. The deacidification outlet of the dry ion exchange resin deacidification filter is connected to the oil inlet of the nitrogen membrane dehydrator via a pipe. The oil outlet of the nitrogen membrane dehydrator is connected to the fine filter inlet of the fine filter via a pipe. The dry ion exchange resin deacidification filter includes a deacidification end cap, which has a deacidification inlet and a deacidification outlet. A housing is installed below the deacidification end cap, and a dry ion exchange resin filter element is installed inside the housing. The central hole of the dry ion exchange resin filter element communicates with the deacidification inlet. The cavity formed by the outer wall of the dry ion exchange resin filter element and the inner wall of the housing communicates with the deacidification outlet. The system has an inlet and an outlet, and a drain pipe is installed at the bottom of the outer casing. The nitrogen membrane dehydrator includes an upper cover and a lower cover, with a nitrogen separation membrane filter element installed between the upper and lower covers. The top of the upper cover has an oil inlet, which is connected to the deacidification oil outlet of the dry ion exchange resin deacidification filter via a pipe. The bottom of the lower cover has an oil outlet, and a drain outlet is provided on the side of the lower cover. The fine filter includes a fine filter end cover, which has a fine filter oil inlet and a fine filter oil outlet. The fine filter oil inlet is connected to the oil outlet of the nitrogen membrane dehydrator via a pipe. A protective outer casing is installed below the fine filter end cover, and a PTFE filter element is installed inside the protective outer casing. An impurity collection hopper is installed below the PTFE filter element.

[0006] In the above technical solution, during actual operation, the contaminated oil to be treated enters the dry ion exchange resin filter element through the deacidification inlet of the dry ion exchange resin deacidification filter, and then enters the nitrogen membrane dehydrator through the deacidification outlet of the dry ion exchange resin filter element. The dry ion exchange resin filter element has ion exchange function, which can react with acidic substances in the fire-resistant oil and remove them from the oil. As the operating time increases, the acid value of the fire-resistant oil will gradually decrease and be maintained at a low level, effectively slowing down the aging rate of the fire-resistant oil and extending its service life. When the deacidified fire-resistant oil enters the nitrogen separation membrane filter element of the nitrogen membrane dehydrator through the oil inlet, the different permeation characteristics of the gas separation membrane for nitrogen and water vapor can efficiently separate the moisture from the gas or liquid. When processing fire-resistant oil with high water content, it can quickly reduce the water content, so that the treated medium reaches a low water content standard. The removed water is discharged through the drain outlet. After dehydration, the fire-resistant oil enters the fine filter through the oil outlet. When the fire-resistant oil passes through the PTFE filter element of the fine filter, the PTFE filter element has a micropore filtration accuracy of 0.01 microns, which can effectively remove small suspended particles and other impurities in the fire-resistant oil, including some heavy metal ions. The impurities are collected through the impurity collection hopper and discharged outward. Finally, the fire-resistant oil after deacidification, dehydration and fine filtration is discharged outward from the fine filter outlet.

[0007] Preferably, the top of the deacidification end cap is also provided with a connecting flange, and the connecting bolt hole on the connecting flange is equipped with an interface plug. In actual operation, a series of detection instruments such as vacuum gauges, pressure gauges, and thermometers can be connected through the connecting flange to monitor the working status of the dry ion exchange resin deacidification filter in real time.

[0008] Preferably, the drain pipe of the dry ion exchange resin deacidification filter is equipped with a drain connector, and the drain connector is equipped with a sludge collection tank. The acidic impurities removed by the dry ion exchange resin deacidification filter can be collected through the sludge collection tank to prevent direct discharge and environmental pollution.

[0009] Preferably, a drain sealing ring is installed at the connection between the drain pipe and the drain connector of the dry ion exchange resin deacidification filter to ensure a good seal at the connection between the drain pipe and the drain connector.

[0010] Preferably, a connecting flange is installed on the top of the fine filter end cap, an instrument connector is installed on the connecting flange, and a detection instrument is installed on the instrument connector to monitor the working status of the fine filter in real time.

[0011] Preferably, a sealing ring is installed at the joint between the fine filter end cap and the protective shell to ensure a good seal at the joint between the fine filter end cap and the protective shell.

[0012] Preferably, the bottom of the impurity collection hopper is equipped with an interface screw to facilitate quick connection between the impurity collection hopper and external pipelines.

[0013] The beneficial effects of the fire-resistant oil deacidification and dehydration filtration device provided by this utility model are as follows:

[0014] (1) This fire-resistant oil deacidification and dehydration filtration device has a simple structure and adopts a combination of deacidification, dehydration and fine filtration. The process is simple and can greatly improve the removal effect of water, particulate impurities and acidic substances in the fire-resistant oil.

[0015] (2) This fire-resistant oil acid removal and dehydration filtration device combines a dry ion exchange resin filter and a nitrogen membrane dehydrator in the fire-resistant oil system. It is professionally suitable for fire-resistant oil filtration and specifically removes strong acids produced by oil oxidation, high-temperature degradation and hydrolysis. It effectively removes weak acids and alkylphenol alcohols produced by hydrolysis, and removes dissolved metal ions and metal soap colloids from external contaminants. The dry ion exchange resin filter combined with the nitrogen membrane dehydration device can actively remove water and waterproof the device, control the moisture and reduce the consumption of the acid removal filter. It can keep the moisture below 100ppm and can remove dissolved water, emulsified water and free water without producing moisture, thereby greatly extending the service life of fire-resistant oil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is an exploded view of the assembly structure of the dry ion exchange resin deacidification filter of this utility model.

[0018] Figure 3 This is an exploded view of the assembly structure of the nitrogen membrane dehydrator in this utility model.

[0019] Figure 4 This is an exploded view of the assembly structure of the fine filter in this utility model.

[0020] In the diagram: 1. Dry ion exchange resin acid removal filter; 11. Acid removal end cap; 12. Acid removal oil inlet; 13. Acid removal oil outlet; 14. Outer shell; 15. Dry ion exchange resin filter element; 16. Drain sealing ring; 17. Drain pipe; 18. Drain connector; 19. Sludge collection tank; 110. Interface plug; 2. Nitrogen membrane dehydrator; 21. Upper end cap; 22. Nitrogen separation membrane filter element; 23. Lower end cap; 24. Oil inlet interface; 25. Oil outlet interface; 26. Drain interface; 3. Fine filter; 31. Fine filter end cap; 32. Fine filter oil inlet; 33. Fine filter oil outlet; 34. Connecting flange; 35. Instrument connector; 36. Detection instrument; 37. Sensor; 38. Sealing ring; 39. PTFE filter element; 310. Impurity collection hopper; 311. Protective shell; 312. Interface screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: A fire-resistant oil deacidification and dehydration filtration device.

[0023] Reference Figures 1 to 4 As shown, a fire-resistant oil deacidification and dehydration filtration device includes: a dry ion exchange resin deacidification filter 1, a nitrogen membrane dehydrator 2, and a fine filter 3. The deacidification outlet 13 of the dry ion exchange resin deacidification filter 1 is connected to the inlet 24 of the nitrogen membrane dehydrator 2 via a pipe, and the outlet 25 of the nitrogen membrane dehydrator 2 is connected to the fine filter inlet 32 ​​of the fine filter 3 via a pipe. In actual operation, the fire-resistant oil is first pumped to the dry ion exchange resin deacidification filter 1 for deacidification, then enters the nitrogen membrane dehydrator 2 for dehydration, and finally enters the fine filter 3 for fine filtration and impurity removal.

[0024] Reference Figure 2As shown, the dry ion exchange resin deacidification filter 1 includes a deacidification end cap 11, which is provided with a deacidification oil inlet 12 and a deacidification oil outlet 13. A housing 14 is installed below the deacidification end cap 11, and a dry ion exchange resin filter element 15 is installed inside the housing 14. The central hole of the dry ion exchange resin filter element 15 is connected to the deacidification oil inlet 12, and the cavity formed by the outer wall of the dry ion exchange resin filter element 15 and the inner wall of the housing 14 is connected to the deacidification oil outlet 13. A drain pipe 17 is installed at the bottom of the housing 14, and a drain connector 18 is installed on the drain pipe 17. A sludge collection tank 19 is installed on the drain connector 18. The acidic impurities removed by the dry ion exchange resin deacidification filter 1 can be collected through the sludge collection tank 19 to prevent direct discharge and environmental pollution. A drain sealing ring 16 is installed at the joint between the drain pipe 17 and the drain connector 18 to ensure a good seal at the joint between the drain pipe 17 and the drain connector 18. The top of the deacidification end cap 11 is also provided with a connecting flange. The connecting bolt holes on the connecting flange are equipped with interface plugs 110. In actual operation, a series of detection instruments such as vacuum gauges, pressure gauges, and thermometers can be connected through the connecting flange to monitor the working status of the dry ion exchange resin deacidification filter 1 in real time. In actual operation, the contaminated oil to be treated enters the dry ion exchange resin filter element 15 through the deacidification oil inlet 12 of the dry ion exchange resin deacidification filter 1, and then enters the nitrogen membrane dehydrator 2 through the deacidification oil outlet 13 after passing through the dry ion exchange resin filter element 15. The dry ion exchange resin filter element 15 has an ion exchange function, which can react with acidic substances in the fire-resistant oil and remove them from the oil. As the operating time increases, the acid value of the fire-resistant oil will gradually decrease and be maintained at a low level, effectively slowing down the aging rate of the fire-resistant oil and extending its service life.

[0025] Reference Figure 3 As shown, the nitrogen membrane dehydrator 2 includes an upper cover 21 and a lower cover 23. A nitrogen separation membrane filter element 22 is installed between the upper cover 21 and the lower cover 23. The top of the upper cover 21 is provided with an oil inlet 24, which is connected to the deacidification oil outlet 13 of the dry ion exchange resin deacidification filter 1 via a pipe. The bottom of the lower cover 23 is provided with an oil outlet 25, and the side of the lower cover 23 is provided with a drain outlet 26. In actual operation, when the deacidified fire-resistant oil enters the nitrogen separation membrane filter element 22 of the nitrogen membrane dehydrator 2 through the oil inlet 24, the different permeation characteristics of the gas separation membrane for nitrogen and water vapor can be utilized to efficiently separate the moisture from the gas or liquid. When processing fire-resistant oil with high water content, the moisture content can be quickly reduced, so that the processed medium reaches a low water content standard. The removed moisture is discharged through the drain outlet 26, and the dehydrated fire-resistant oil enters the fine filter 3 through the oil outlet 25.

[0026] Reference Figure 4As shown, the fine filter 3 includes a fine filter end cap 31, which has a fine filter inlet 32 ​​and a fine filter outlet 33. The fine filter inlet 32 ​​is connected to the outlet interface 25 of the nitrogen membrane dehydrator 2 via a pipe. A protective shell 311 is installed below the fine filter end cap 31. A sealing ring 38 is installed at the joint between the fine filter end cap 31 and the protective shell 311 to ensure a good seal. A PTFE filter element 39 is installed inside the protective shell 311. An impurity collection hopper 310 is installed below the PTFE filter element 39. An interface screw 312 is installed at the bottom of the impurity collection hopper 310 to facilitate quick connection between the impurity collection hopper 310 and external pipelines. A connecting flange 34 is installed on the top of the fine filter end cap 31. An instrument connector 35 is installed on the connecting flange 34. A detection instrument 36 is installed on the instrument connector 35 to monitor the working status of the fine filter 3 in real time. In actual operation, the dehydrated fire-resistant oil enters the fine filter 3 through the fine filter inlet 32. When the fire-resistant oil passes through the PTFE filter element 39 of the fine filter 3, the PTFE filter element 39 has a micropore filtration precision of 0.01 microns, which can effectively remove small suspended particles and other impurities in the fire-resistant oil, including some heavy metal ions. The impurities are collected by the impurity collection hopper 310 and discharged outward. Finally, the fire-resistant oil after acid removal, dehydration and fine filtration is discharged outward through the fine filter outlet 33.

[0027] This fire-resistant oil deacidification and dehydration filtration device has a simple structure and adopts a combination of deacidification, dehydration and fine filtration. The process is simple and can greatly improve the removal effect of water, particulate impurities and acidic substances in fire-resistant oil.

[0028] This fire-resistant oil deacidification and dehydration filtration device combines a dry ion exchange resin filter and a nitrogen membrane dehydrator in fire-resistant oil systems. Specifically designed for fire-resistant oil filtration, it effectively removes strong acids generated by oil oxidation, high-temperature degradation, and hydrolysis, as well as weak acids and alkylphenol alcohols produced by hydrolysis. It also removes dissolved metal ions and metal soap colloids from external contaminants. The dry ion exchange resin filter, combined with the nitrogen membrane dehydration device, actively removes and waterproofs water, controlling moisture levels and reducing the consumption of the deacidification filter. It can maintain moisture content below 100 ppm and removes dissolved water, emulsified water, and free water without generating moisture, thus significantly extending the service life of fire-resistant oil.

[0029] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A fire-resistant oil deacidification and dehydration filtration device, characterized in that... include: The system comprises a dry ion exchange resin acid removal filter, a nitrogen membrane dehydrator, and a fine filter. The acid removal outlet of the dry ion exchange resin acid removal filter is connected to the oil inlet of the nitrogen membrane dehydrator via a pipe. The oil outlet of the nitrogen membrane dehydrator is connected to the fine filter inlet of the fine filter via a pipe. The dry ion exchange resin acid removal filter includes an acid removal end cap with an acid removal inlet and an acid removal outlet. A housing is installed below the end cap, and a dry ion exchange resin filter element is installed inside the housing. The central hole of the dry ion exchange resin filter element communicates with the acid removal inlet. The cavity formed by the outer wall of the dry ion exchange resin filter element and the inner wall of the housing communicates with the acid removal outlet. A drain pipe is installed at the bottom of the housing. The nitrogen membrane dehydrator includes an upper cover and a lower cover. A nitrogen separation membrane filter element is installed between the upper and lower covers. The top of the upper cover is provided with an oil inlet, which is connected to the deacidification oil outlet of the dry ion exchange resin deacidification filter via a pipe. The bottom of the lower cover is provided with an oil outlet, and a drain outlet is provided on the side of the lower cover. The fine filter includes a fine filter end cover, which is provided with a fine filter oil inlet and a fine filter oil outlet. The fine filter oil inlet is connected to the oil outlet of the nitrogen membrane dehydrator via a pipe. A protective shell is installed below the fine filter end cover, and a PTFE filter element is installed inside the protective shell. An impurity collection hopper is installed below the PTFE filter element.

2. The fire-resistant oil deacidification and dehydration filtration device as described in claim 1, characterized in that: The top of the acid removal end cap is also provided with a connecting flange, and the connecting bolt holes on the connecting flange are equipped with interface plugs.

3. The fire-resistant oil deacidification and dehydration filtration device as described in claim 1, characterized in that: The dry ion exchange resin deacidification filter is equipped with a drain pipe with a drain connector, and a sludge collection tank is installed on the drain connector.

4. The fire-resistant oil deacidification and dehydration filtration device as described in claim 3, characterized in that: The drain pipe of the dry ion exchange resin deacidification filter is fitted with a drain sealing ring at the connection between the drain pipe and the drain connector.

5. The fire-resistant oil deacidification and dehydration filtration device as described in claim 1, characterized in that: A connecting flange is installed on the top of the fine filter end cap, an instrument connector is installed on the connecting flange, and a detection instrument is installed on the instrument connector.

6. The fire-resistant oil deacidification and dehydration filtration device as described in claim 1, characterized in that: A sealing ring is installed at the joint between the fine filter end cap and the protective shell.

7. The fire-resistant oil deacidification and dehydration filtration device as described in claim 1, characterized in that: The bottom of the impurity collection hopper is fitted with interface screws.

Images