Oil seal purification device

Abstract

The utility model discloses an oil seal purification device, and belongs to the technical field of dehydration oil seal devices. The problems that in the prior art, oil liquid is prone to secondary pollution, and the dehydration efficiency is low are solved. The oil supply system comprises a vehicle body, an oil tank is arranged in the vehicle body, the oil tank is connected with an oil filling system, a moisture purification system and an oil liquid circulation purification system, the oil liquid circulation purification system is connected with an oil seal oil supply pipe, the oil seal oil supply pipe is detachably connected with an aircraft fuel oil system, and the oil liquid circulation purification system comprises an oil supply pipeline and an oil return pipeline. A first oil filter is arranged on the oil supply pipeline, a second oil filter is arranged on the oil return pipeline, the oil supply pipeline is further connected with an unsealing system, and the moisture purification system comprises a heating assembly and a vacuum assembly. Oil liquid is filtered by the two oil filters, so that the pollution degree of oil liquid particles can be always kept in a standard state, the oil liquid can be circularly matched with the heating assembly and the vacuum assembly between the oil supply pipeline and the oil return pipeline for dehydration, and the dehydration efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dehydration oil seal devices, and in particular relates to an oil seal purification device. Background Art

[0002] The dehydration oil seal device is used for periodic work, special inspection and troubleshooting of aircraft engines in the field. It is mainly used to complete the cold oil seal, hot oil seal, nitrogen filling and unsealing of the aircraft engine fuel system, as well as the dehydration, circulation cleaning and oil heating of the oil seal lubricating oil.

[0003] The oil dehydration technologies currently used in the market for oil seal equipment include direct heating dehydration of the oil and vacuum dehydration. The method of heating dehydration is to heat the oil to 110-120℃, so that the trace water in the oil is transformed into water vapor and separated from the oil and discharged from the oil tank. After the dehydration amount is qualified, the air-cooled radiator is used to cool the oil. This dehydration method has the following defects: ① The temperature is high, which has high requirements for the sealing materials of pipelines and components, and accelerates the aging of seals, resulting in a short service life; the temperature of the circulating pipeline and the oil tank is high, and the operator may accidentally touch it, which may cause burns; ③ After the oil temperature drops, there will be a phenomenon of water vapor condensation and water droplets attached to the upper wall of the oil tank; vacuum dehydration is to use a vacuum pump to directly pump air at the top of the oil tank, so that the oil tank forms a certain vacuum pressure, reduce the boiling point of water vaporization, and make the trace water in the oil become water vapor and separate from the oil. The water vapor is discharged from the oil tank with the vacuum pump, thereby achieving dehydration work and reducing the water content of the oil, but this method is not efficient.

[0004] Oil purification of oil seal equipment is to circulate and filter the lubricating oil through two continuous series oil filters in the oil supply circuit, so that the particle contamination of the equipment meets the use requirements. At present, the oil supply circuit of common oil seal equipment is equipped with two adjacent oil filters with filtration accuracy of 10u and 5u, and no oil filter is installed at the oil return port of the oil tank. As a result, after the equipment is purified, during the oil sealing process, the friction between the valve core and the valve body of the overflow valve used in the pressure regulating device causes secondary contamination of the oil, which reduces the particle contamination of the purified oil. This increases the risk of oil seal oil being contaminated during the oil sealing process. Utility Model Content

[0005] In view of the fact that the prior art does not provide an oil filter at the oil return port of the oil tank, which results in secondary oil contamination caused by friction between the valve core of the overflow valve used in the pressure regulating device and the valve body during the oil sealing process after the equipment is purified, the particle contamination of the purified oil is reduced, the risk of oil seal oil being contaminated during the oil sealing process is increased, and the existing dehydration method is inefficient, the utility model provides an oil seal purification device.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An oil seal purification device comprises a vehicle body, wherein an oil tank is arranged in the vehicle body, the oil tank is connected to a refueling system, a moisture purification system, and an oil circulation purification system, the oil circulation purification system is connected to an oil seal oil supply pipe, the oil seal oil supply pipe is detachably connected to an aircraft fuel system, the oil circulation purification system comprises an oil supply pipeline and an oil return pipeline, a first oil filter is arranged on the oil supply pipeline, a second oil filter is arranged on the oil return pipeline, the oil supply pipeline is also connected to an unsealing system, and the moisture purification system comprises a heating component and a vacuum component.

[0008] After adopting this technical solution, the oil circulates continuously between the oil tank and the oil circulation purification system, and the oil is filtered through two oil filters. After the oil particle contamination reaches the standard, when the equipment performs oil sealing, the oil pollution caused by the friction between the overflow valve core and the valve body in the equipment pressure regulating device passes through the second oil filter, and will not cause secondary pollution to the oil tank, thereby ensuring that the oil particle contamination during the oil sealing process always reaches the standard state. The oil can be circulated between the oil supply pipeline and the oil return pipeline to cooperate with the heating component and the vacuum component for dehydration, which can improve the dehydration efficiency.

[0009] Preferably, the oil tank is provided with an oil outlet and a first oil inlet, the oil outlet is connected to the oil supply pipeline, the oil supply pipeline and the first oil inlet are connected via an oil return pipeline, a pump body, a first oil filter, a flow monitoring mechanism, a second one-way valve, and a pressure monitoring mechanism are sequentially provided on the oil supply pipeline from the end close to the oil outlet, and a circulation solenoid valve and a second oil filter are sequentially provided on the oil return pipeline from the end close to the oil supply pipeline.

[0010] After adopting this technical solution, the oil is sucked into the oil supply pipeline through the pump body, and passes through the first oil filter, flow monitoring mechanism, pressure monitoring mechanism, circulation solenoid valve, and second oil filter in sequence to reach the oil tank, where it is continuously circulated and purified. A flow monitoring mechanism is set at the outlet of the oil supply pipeline to monitor the flow of the oil supply pipeline, and a pressure monitoring mechanism monitors the outlet pressure of the oil supply pipeline outlet.

[0011] Preferably, the oil supply pipeline is also connected to an overflow system, and the overflow system is connected to the oil return pipeline.

[0012] After adopting this technical solution, the overflow system includes several overflow valves to meet the pressure requirements of different parts of the oil supply pipeline.

[0013] Preferably, the oil circulation purification system is also connected to an oil seal oil supply pipe cleaning system, the oil seal oil supply pipe cleaning system includes a pipeline circulation cleaning adapter system and a pipeline circulation cleaning interface connected to the return oil pipeline, the pipeline circulation cleaning interface is located on the return oil pipeline between the second oil filter and the oil supply pipeline, the pipeline circulation cleaning interface is connected to the oil seal oil supply pipe through the pipeline circulation cleaning adapter system, the pipeline circulation cleaning adapter system includes a main pipe and several branch pipes connected to the main pipe, the number of the branch pipes is equal to the number of the oil seal oil supply pipes, the main pipe is detachably connected to the pipeline circulation cleaning interface, and each branch pipe is detachably connected to an oil seal oil supply pipe.

[0014] After adopting this technical solution, the oil is circulated between the oil seal oil supply pipe and the oil tank, and the oil seal oil supply pipe is cleaned in a pulsating manner, thereby cleaning the oil seal oil supply pipe.

[0015] Preferably, the heating component includes a heater, a liquid level relay, a first steam filter, a temperature sensor and a pressure sensor arranged in the oil tank, and the vacuum component includes a vacuum pump connected to the oil tank.

[0016] After adopting this technical solution, the oil is heated, the water in the oil is heated to accelerate the volatilization into water vapor, the oil tank is evacuated, the water vaporization boiling point is lowered, the water in the oil is accelerated to become water vapor, and the oil is continuously circulated through the oil circulation purification system, so that the oil is quickly dehydrated and the dehydration efficiency is improved. When the oil is evacuated, a certain amount of air needs to enter, and it is removed by the vacuum pump together with the water vapor in the oil. Therefore, the first vapor filter is set to filter the dust, water, etc. entering the oil tank.

[0017] Preferably, an oil dispersion device is provided in the oil tank.

[0018] After adopting this technical solution, an oil dispersion device is added to change the oil column into a larger area to disperse the oil mist or small droplets when the oil enters the oil tank, increase the contact area between the oil and the air, and allow the moisture in the oil to quickly turn into water vapor and separate from the oil.

[0019] Preferably, the unsealing system includes an air supply pipeline connected to the oil supply pipeline, the air supply pipeline is connected to a gas interface arranged on the vehicle body, the air supply pipeline is provided with a second steam filter, a pressure reducing valve and a first one-way valve in sequence from one end close to the gas interface, and a safety valve is provided on the pipeline between the first one-way valve and the pressure reducing valve.

[0020] After adopting this technical solution, the nitrogen in the nitrogen bottle passes through the gas interface, is filtered by the second steam filter, and is reduced in pressure by the pressure reducing valve to reach the operating pressure. Then, it passes through the first one-way valve and the oil seal supply pipe to reach the aircraft fuel system. The nitrogen blows out the lubricating oil in the fuel system until the lubricating oil is discharged.

[0021] Preferably, an accumulator is also provided on the oil supply pipeline.

[0022] After adopting this technical solution, the accumulator provides the equipment with lubricating oil of a certain volume and pressure, and eliminates the gear pump pressure supply vibration and reduces pressure instability.

[0023] Preferably, the refueling system comprises a second oil inlet provided on the oil tank, the second oil inlet is connected to a refueling pipe, and the refueling pipe is provided with a valve and a third oil filter.

[0024] After adopting this technical solution, after the equipment is connected to the refueling pipe, the refueling pipe is placed in the oil in the external fuel tank, the vacuum pump is started to evacuate the fuel tank, and the oil enters the fuel tank through the refueling pipe and the third oil filter.

[0025] Preferably, the refueling system, moisture purification system, oil circulation purification system and unsealing system are all electrically connected to a control system, the control system is electrically connected to an operation display panel arranged on the surface of the vehicle body, the operation display panel is arranged at an angle, a dust cover is hinged on the vehicle body at a position corresponding to the operation display panel, two universal shock-absorbing casters and two directional shock-absorbing casters are arranged at the bottom of the vehicle body, and a pushing handle is also arranged on the vehicle body.

[0026] After adopting this technical solution, two universal shock-absorbing casters and two directional shock-absorbing casters are set at the bottom of the vehicle body to play a shock-absorbing and buffering role for the various components of the equipment during the promotion process, thereby enhancing the shock-resistant characteristics of the equipment. The operation display panel is at a certain tilt angle to ensure that when the operator stands with his head slightly downward, his line of sight is vertical to the display screen for easy observation.

[0027] Preferably, hidden hooks are provided at the four corners of the vehicle chassis.

[0028] After adopting this technical solution, hidden hooks are set at the four corners of the vehicle chassis to facilitate the movement and fixation of the equipment during transportation.

[0029] Preferably, inspection openings are provided on the top and each side of the vehicle body, and each inspection opening is provided with a switchable shielding cover.

[0030] After adopting this technical solution, various components inside the vehicle body can be inspected through various inspection ports, which improves the convenience of inspection.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0032] 1. In the utility model, the oil is continuously circulated between the oil tank and the oil circulation purification system, so that the oil is filtered through two oil filters. After the oil particle contamination reaches the standard, when the equipment performs oil sealing work, the oil pollution generated by the friction between the valve core and the valve body of the overflow valve in the equipment pressure regulating device passes through the second oil filter, and will not cause secondary pollution to the oil tank, thereby ensuring that the oil particle contamination during the oil sealing process always remains in a standard state.

[0033] 2. In the utility model, the oil is heated, the water in the oil is heated to accelerate the volatilization into water vapor, the oil tank is evacuated, the water vaporization boiling point is lowered, the water in the oil is accelerated to become water vapor, and the oil passes through the oil circulation purification system and circulates continuously, so that the oil is quickly dehydrated and the dehydration efficiency is improved.

[0034] 3. The utility model adds an oil dispersing device, which changes the oil column into a larger area to disperse the oil mist or small droplets when the oil enters the oil tank, increases the contact area between the oil and the air, and allows the moisture in the oil to quickly turn into water vapor and separate from the oil.

[0035] 4. The utility model is designed according to the use requirements to improve the dehydration efficiency of the oil seal equipment, shorten the dehydration time, reduce the risk of high temperature scalding to personnel, and avoid the risk of high temperature aging of the rubber of the sealing element. The oil filter distribution is reasonably set so that both the oil supply line and the oil tank return line have filters to avoid secondary contamination of the oil during the use of the oil. Improve the aircraft support capability of the front-line troops. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0037] Figure 1 It is a schematic diagram of the structure at the first angle outside the vehicle body;

[0038] Figure 2 It is a schematic diagram of the structure at a second angle outside the vehicle body;

[0039] Figure 3 It is a schematic diagram of the structure inside the vehicle body at the first angle;

[0040] Figure 4 It is a schematic diagram of the structure inside the vehicle body at a second angle;

[0041] Figure 5 It is a schematic diagram of the connection structure of various components in the vehicle body;

[0042] Among them, 1-car body, 2-inspection port, 3-dust cover, 4-push handle, 5-universal shock-absorbing caster, 6-directional shock-absorbing caster, 7-shielding cover, 8-oil tank, 9-control system, 10-heater, 11-vacuum pump, 12-first oil inlet, 13-pressure sensor, 14-temperature sensor, 15-first steam filter, 16-return oil pipeline, 17-overflow system, 18-circulation solenoid valve, 19-pipeline circulation cleaning interface, 20- pipeline circulation cleaning transfer system, 21- oil seal oil supply pipe, 22- oil supply pipeline, 23- accumulator, 24- pressure monitoring mechanism, 25- safety valve, 26- first one-way valve, 27- air supply pipeline, 28- pressure reducing valve, 29- flow monitoring mechanism, 30- second steam filter, 31- first oil filter, 32- pump body, 33- second oil inlet, 34- second oil filter, 35- oil outlet, 36- oil filling pipe, 37- third oil filter. DETAILED DESCRIPTION

[0043] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0044] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] The utility model is described in detail below in conjunction with the accompanying drawings.

[0046] Example 1

[0047] An oil seal purification device comprises a vehicle body 1, wherein an oil tank 8 is arranged in the vehicle body 1, wherein the oil tank 8 is connected to a refueling system, a moisture purification system, and an oil circulation purification system, wherein the oil circulation purification system is connected to an oil seal oil supply pipe 21, wherein the oil seal oil supply pipe 21 is detachably connected to an aircraft fuel system, wherein the oil circulation purification system comprises an oil supply pipeline 22 and an oil return pipeline 16, wherein a first oil filter 31 is arranged on the oil supply pipeline 22, wherein a second oil filter 14 is arranged on the oil return pipeline 16, wherein the oil supply pipeline 22 is further connected to an unsealing system, and wherein the moisture purification system comprises a heating component and a vacuum component.

[0048] In this embodiment, the oil seal oil supply pipe 21 includes an oil supply main pipe connected to the oil supply pipeline 22, and the oil supply main pipe is connected to a plurality of oil supply branch pipes, and the oil supply branch pipes are all provided with solenoid valves. When the oil circulates between the oil supply pipeline 22 and the oil return pipeline 16, the solenoid valve on the oil supply branch pipe is closed, and when the oil seal is in operation, the circulation solenoid valve 18 is closed, and the solenoid valve on the oil supply branch pipe is opened.

[0049] In this embodiment, the vehicle body size is 1550mm×1100mm×1220mm, the weight of the equipment does not exceed 580kg, and the vehicle body design is fully enclosed to meet the requirements of dustproof and waterproof. While the vehicle body meets the use strength, the surface of the vehicle body is set as an opening and closing door to the greatest extent to ensure the convenience of equipment assembly and later maintenance. A push handle is provided, and the handle is provided with an anti-slip cover to increase the comfort and anti-slip of the operator during the pushing process. Hidden hooks are set at the four corners of the vehicle chassis to facilitate the movement and fixation of the equipment during transportation.

[0050] In this embodiment, the first oil filter is 3u, and the second oil filter is 10u. The system oil supply pipeline is equipped with a 3u precision filter for oil filtration, and the outlet of the oil supply pipeline is equipped with a turbine flowmeter to monitor the flow of the oil supply pipeline. The pressure sensor monitors the outlet pressure, and an accumulator is provided at the outlet to stabilize the fluctuation of the oil supply outlet pressure and supply oil in a short time when the oil is sealed. The system oil return line is equipped with a 10u filter. When the oil is self-circulating, the lubricating oil is circulated and cleaned through the secondary oil filter, so that the oil particle contamination quickly reaches the required range.

[0051] In this embodiment, the oil tank 8 is provided with an oil outlet 35 and a first oil inlet 12, the oil outlet 35 is connected to the oil supply pipeline 22, the oil supply pipeline 22 and the first oil inlet 12 are connected via an oil return pipeline 16, the oil supply pipeline 22 is provided with a pump body 32, a first oil filter 31, a flow monitoring mechanism 29, and a pressure monitoring mechanism 24 in sequence from the end close to the oil outlet 35, and the oil return pipeline 16 is provided with a circulation solenoid valve 18 and a second oil filter 14 in sequence from the end close to the oil supply pipeline 22. In this embodiment, the pressure monitoring mechanism 24 is a pressure detector, which is provided at the connection between the oil supply pipeline 22 and the gas supply pipeline 27 to collect the gas outlet pressure of the gas supply pipeline 27. A second one-way valve is provided on the oil supply pipeline 22 between the pressure monitoring mechanism 24 and the flow monitoring mechanism 29.

[0052] In this embodiment, the oil supply line 22 is also connected to an overflow system 17, and the overflow system 17 is connected to the oil return line 16. The overflow system 17 includes several overflow pipes whose two ends are connected to the oil supply line 22 and the oil return line 16 respectively, and each overflow pipe is provided with an overflow valve. The overflow system is used for the pressure value required by the equipment, and the motor speed can be adjusted to meet the continuous adjustable requirements of each pressure. The plug-in overflow and plug-in solenoid valve are integrated with the valve plate, and the oil seals and each oil pipe are separated from the equipment by an accessory storage cart. The oil pipe is connected to the equipment with a quick connector, and each quick connector is integrated with the valve plate for controlling the on-off solenoid valve, which is used to reduce the space and weight of the hydraulic system to meet the requirements of miniaturization and lightweight.

[0053] In this embodiment, the oil seal hose for equipment connection is separated from the equipment design, making the equipment smaller, and the hose is convenient to store and maintain. All hoses are domestic common big brand hydraulic hoses, and the use pressure of all hydraulic hoses meets the use requirements. At the same time, all hoses have a cloth layer on the surface, and the outer surface of the hose is covered with steel wire to make the hose wear-resistant and protect the inner hose.

[0054] In this embodiment, the oil circulation purification system is also connected to an oil seal oil supply pipe cleaning system, which includes a pipeline circulation cleaning adapter system 20 and a pipeline circulation cleaning interface 19 connected to the return oil pipeline 16, and the pipeline circulation cleaning interface 19 is located on the return oil pipeline 16 between the second oil filter 14 and the oil supply pipeline 22. The pipeline circulation cleaning interface 19 is connected to the oil seal oil supply pipe 21 through the pipeline circulation cleaning adapter system 20. The pipeline circulation cleaning adapter system 20 includes a main pipe and several branch pipes connected to the main pipe, and the number of the branch pipes is equal to the number of oil supply branches of the oil seal oil supply pipe 21. The main pipe is detachably connected to the pipeline circulation cleaning interface 19, and each branch pipe is detachably connected to an oil seal oil supply pipe 21.

[0055] In this embodiment, the heating assembly includes a heater 10, a liquid level relay, a first steam filter 15, a temperature sensor 34 and a pressure sensor 13 arranged in the oil tank 8, and the vacuum assembly includes a vacuum pump 11 connected to the oil tank 8. In this embodiment, the upper limit of the oil heating temperature is 60°C, and the heater 10 arranged in the oil tank 1 is a 6kW heater.

[0056] In this embodiment, the refueling system includes a second oil inlet 33 disposed on the oil tank 8 , the second oil inlet 33 is connected to a refueling pipe 36 , and the refueling pipe 36 is provided with a valve and a third oil filter 37 .

[0057] In this embodiment, the unsealing system includes an air supply line 27 connected to the oil supply line 22, the air supply line 27 is connected to a gas interface provided on the vehicle body 1, and the air supply line 27 is provided with a second steam filter 30, a pressure reducing valve 28 and a first one-way valve 26 in sequence from one end close to the gas interface, and a safety valve 25 is provided on the pipeline between the first one-way valve 26 and the pressure reducing valve 28. The equipment adopts the commonly used navigation mark JT-7 inflation connector, filtered by the second steam filter, the pressure reducing valve reduces the pressure to 1MPa, and a safety valve is provided for overpressure protection.

[0058] In this embodiment, an accumulator 23 is also provided on the oil supply pipeline 22. The accumulator 23 provides a certain volume and pressure of lubricating oil for the equipment, eliminates the vibration of the gear pump supply pressure and reduces the pressure instability.

[0059] In this embodiment, inspection openings 2 are provided on the top and sides of the vehicle 1, and each inspection opening 2 is provided with an openable and closable shielding cover 7. All shielding covers 7 are made of rust-proof aluminum alloy to reduce the weight of the vehicle body, and the entire vehicle body is treated with rust-proof and salt spray-resistant paint to ensure that the vehicle body meets the salt spray resistance requirements.

[0060] In this embodiment, the refueling system, the water purification system, the oil circulation purification system and the unsealing system are all electrically connected to a control system 9, and the control system 9 is electrically connected to an operation display panel arranged on the surface of the vehicle body 1. The operation display panel is arranged at an angle, and a dust cover 3 is hinged on the vehicle body 1 at a position corresponding to the operation display panel. Two universal shock-absorbing casters and two directional shock-absorbing casters are arranged at the bottom of the vehicle body 1, and a pushing handle 4 is also arranged on the vehicle body 1. The operation display panel is inclined at a certain angle to ensure that the operator's head is slightly downward when standing, so that the line of sight is vertical to the display screen for easy observation. The display panel is provided with a power supply selection switch of 380V and 115V, an emergency stop button, an alarm light, and a flow speed control knob. The body is provided with two universal shock-absorbing casters and two directional shock-absorbing casters, so that the various components of the equipment can be damped and buffered during the promotion of the equipment, thereby enhancing the seismic resistance of the equipment.

[0061] The electrical system and control system are all isolated and explosion-proof with fully enclosed boxes. The outlets of the boxes are all standard electrical explosion-proof connectors, and all component outlets are explosion-proof to isolate sparks and are connected to the vehicle body through ground wires. The external connection wires of the equipment are all oil-resistant, wear-resistant, extrusion-resistant and soft YVXRZ series. The external connection wire electrical connectors are all WY series with tail protection to prevent the cable from being damaged due to bending, which increases the service life of the cable. The equipment uses standard electrical components and cables, with a short procurement cycle and convenient for later maintenance and replacement.

[0062] The operation display panel is equipped with a display screen, a prompt light, a power switch, and a flow adjustment knob. The display screen is used to display and manually select the equipment functions, and display the flow, pressure, alarm information, etc. of each function of the equipment. The prompt light is used to prompt the equipment alarm, power selection and other information. The power switch is used to select 380V and 115V power supply. The flow adjustment knob is adjusted according to the actual needs of the user.

[0063] The principle design of the utility model is as follows:

[0064] 1. Oil vacuum heating dehydration: Heat the oil through the heater 10, and when it is heated to 40°C (about 37 minutes, it takes about 53 minutes to heat the oil from -20°C to 60°C), start the vacuum pump 11 to make the water in the oil quickly reach the boiling point after heating, thus turning into water vapor, and vacuum dehydration of the oil tank 1, the vacuum dehydration time is as long as 20 minutes; at the same time, the oil is sucked into the oil supply pipeline 22 and the return oil pipeline 16 through the pump body 32 to circulate the oil to quickly dehydrate the oil, thereby improving the dehydration efficiency. After the vacuum dehydration is completed, the oil temperature is controlled at 50-60°C, which is within the use range of the oil seal, and no separate heat dissipation and cooling is required. The whole process takes about 60 minutes, which greatly shortens the waiting time for oil seal (in the prior art, the temperature of the equipment in cold season is usually -20 to -10°C. Taking -20°C as an example, the oil heating temperature reaches 120°C for the first time. It takes about 180 minutes for 3KW heating and about 90 minutes for 6KW heater. Therefore, the heating time of this embodiment is greatly reduced);

[0065] Since the maximum temperature is only 60℃, operators will not be burned by accidentally touching the hydraulic pipeline during the equipment oil heating process; the equipment sealing components are made of conventional nitrile rubber (working temperature -40℃~100℃), and the equipment heating temperature will not cause accelerated aging of rubber components, ensuring the normal life of the equipment seal.

[0066] 2. Oil purification: The lubricating oil in the oil tank 1 reaches the oil supply pipeline 22 through the pump body 32, passes through the first oil filter 31, the flow monitoring mechanism 29, the second one-way valve on the oil supply pipeline 22, and finally reaches the return oil pipeline 16, and passes through the circulation solenoid valve 18 and the second oil filter 14 on the return oil pipeline 16 to reach the oil tank 1 again, so that the oil is continuously circulated and filtered through the first oil filter 31 and the second oil filter 14. After the oil particle contamination meets the standard, when the equipment performs oil sealing work, the oil pollution caused by the friction between the valve core and the valve body of the overflow valve in the equipment pressure regulating device passes through the second oil filter 14, and will not cause secondary pollution to the oil, thereby ensuring that the oil particle contamination degree used in the oil sealing process always meets the standard.

[0067] 3. Engine unsealing: The nitrogen in the nitrogen bottle is connected to the gas interface on the vehicle body 1, so that the nitrogen enters the gas supply pipeline 27. The nitrogen entering the gas supply pipeline 27 is filtered by the second gas filter and reduced in pressure by the pressure reducing valve 28 to reach the use pressure. The nitrogen reaches the oil seal supply pipe 21 through the first check valve 26, and then reaches the aircraft fuel system. The nitrogen blows out the lubricating oil in the fuel system until the lubricating oil is discharged cleanly.

[0068] 4. Engine oil seal: The dehydrated and purified lubricating oil in the oil tank 1 reaches the oil supply pipeline 22 through the pump body 32, and enters the oil seal supply pipe 21 after passing through the first oil filter 31, the flow monitoring mechanism 29, the first non-return valve, and the pressure monitoring mechanism 24 to enter the aircraft fuel system, and adjusts the pressure according to the pressure required for the cold and hot oil seal functions of the equipment. The equipment monitors the oil seal oil pressure and flow through the pressure monitoring mechanism 24 and the flow monitoring mechanism 29. The accumulator 23 is provided to provide the equipment with a certain volume and pressure of lubricating oil, and eliminates the gear pump pressure supply vibration and reduces pressure instability. The motor adopts a variable frequency speed regulating motor. Through the adjustment of the inverter, the flow size of the equipment can be continuously adjusted according to the flow required by the user.

[0069] 5. Equipment pipeline circulation cleaning: connect the pipeline circulation cleaning interface 19 with the oil seal oil supply pipe 21 through the pipeline circulation cleaning adapter system 20. The oil in the oil tank 1 enters the oil seal oil supply pipe 21 after passing through the pump body 32, the first oil filter 31, the flow monitoring mechanism 29, the first non-return valve, and the pressure monitoring mechanism 24, and then reaches the pipeline circulation cleaning interface 19 through the pipeline circulation cleaning adapter system 20, and then enters the oil tank 1 after passing through the second oil filter 14, so that the oil continuously circulates to clean the pipeline stroke in a pulsating manner, thereby cleaning the oil seal oil supply pipe 21;

[0070] 6. Automatic refueling function of the equipment: put one end of the refueling pipe 36 into the oil in the external oil tank, start the vacuum pump 11 to evacuate the oil tank 1, and the oil enters the oil tank 1 through the refueling pipe 36 and the third oil filter 37.

[0071] Example 2

[0072] This embodiment is basically the same as the embodiment 1, except that: an oil dispersing device is added, and the oil dispersing device can be a device such as a nozzle that can disperse and spray liquid (when it is a nozzle, the nozzle of the nozzle is aimed at the oil tank 1, and the liquid inlet of the nozzle is connected to the oil return pipeline 16), so that when the oil enters the oil tank, the oil column becomes larger and disperses the oil mist or small droplets over a larger area, increasing the contact area between the oil and the air, allowing the moisture in the oil to quickly become water vapor and separate from the oil.

[0073] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. An oil seal purification device, characterized in that: The invention comprises a vehicle body (1), wherein a fuel tank (8) is arranged in the vehicle body (1), wherein the fuel tank (8) is connected to a refueling system, a moisture purification system, and an oil circulation purification system, wherein the oil circulation purification system is connected to an oil seal oil supply pipe (21), wherein the oil seal oil supply pipe (21) is detachably connected to an aircraft fuel system, wherein the oil circulation purification system comprises an oil supply pipeline (22) and an oil return pipeline (16), wherein a first oil filter (31) is arranged on the oil supply pipeline (22), wherein a second oil filter (14) is arranged on the oil return pipeline (16), wherein the oil supply pipeline (22) is further connected to an unsealing system, and wherein the moisture purification system comprises a heating component and a vacuum component.

2. The oil seal purification device according to claim 1, characterized in that: The oil tank (8) is provided with an oil outlet (35) and a first oil inlet (12); the oil outlet (35) is connected to an oil supply pipeline (22); the oil supply pipeline (22) and the first oil inlet (12) are connected via an oil return pipeline (16); the oil supply pipeline (22) is provided with a pump body (32), a first oil filter (31), a flow monitoring mechanism (29), a second non-return valve, and a pressure monitoring mechanism (24) in sequence from one end close to the oil outlet (35); and the oil return pipeline (16) is provided with a circulation solenoid valve (18) and a second oil filter (14) in sequence from one end close to the oil supply pipeline (22).

3. The oil seal purification device according to claim 1, characterized in that: The oil supply pipeline (22) is also connected to an overflow system (17), and the overflow system (17) is connected to the oil return pipeline (16).

4. The oil seal purification device according to claim 1, characterized in that: The oil circulation purification system is also connected to an oil seal oil supply pipe cleaning system, the oil seal oil supply pipe cleaning system comprising a pipe circulation cleaning adapter system (20) and a pipe circulation cleaning interface (19) connected to the return oil pipe (16), the pipe circulation cleaning interface (19) being located on the return oil pipe (16) between the second oil filter (14) and the oil supply pipe (22), the pipe circulation cleaning interface (19) being connected to the oil seal oil supply pipe (21) via the pipe circulation cleaning adapter system (20), the pipe circulation cleaning adapter system (20) comprising a main pipe and a plurality of branch pipes connected to the main pipe, the number of the branch pipes being equal to the number of the oil seal oil supply pipes (21), the main pipe being detachably connected to the pipe circulation cleaning interface (19), and each branch pipe being detachably connected to an oil seal oil supply pipe (21).

5. An oil seal purification device according to any one of claims 1 to 4, characterized in that: The heating component comprises a heater (10) arranged in the oil tank (8), a liquid level relay, a first steam filter (15), a temperature sensor (34) and a pressure sensor (13); and the vacuum component comprises a vacuum pump (11) connected to the oil tank (8).

6. An oil seal purification device according to any one of claims 1 to 4, characterized in that: The refueling system comprises a second oil inlet (33) arranged on the oil tank (8), the second oil inlet (33) is connected to a refueling pipe (36), and the refueling pipe (36) is provided with a valve and a third oil filter (37).

7. An oil seal purification device according to any one of claims 1 to 4, characterized in that: An oil dispersion device is arranged in the oil tank (8).

8. An oil seal purification device according to any one of claims 1 to 4, characterized in that: The unsealing system comprises an air supply pipeline (27) connected to an oil supply pipeline (22), the air supply pipeline (27) being connected to a gas interface provided on a vehicle body (1), the air supply pipeline (27) being provided with a second steam filter (30), a pressure reducing valve (28) and a first non-return valve (26) in sequence from one end close to the gas interface, and a safety valve (25) being provided on the pipeline between the first non-return valve (26) and the pressure reducing valve (28).

9. An oil seal purification device according to any one of claims 1 to 4, characterized in that: An accumulator (23) is also provided on the oil supply pipeline (22).

10. An oil seal purification device according to any one of claims 1 to 4, characterized in that: The refueling system, the moisture purification system, the oil circulation purification system and the unsealing system are all electrically connected to a control system (9), and the control system (9) is electrically connected to an operation display panel arranged on the surface of the vehicle body (1). The operation display panel is arranged at an angle, and a dust cover (3) is hingedly connected to the vehicle body (1) at a position corresponding to the operation display panel. Two universal shock-absorbing casters (5) and two directional shock-absorbing casters (6) are arranged at the bottom of the vehicle body (1), and a pushing handle (4) is also arranged on the vehicle body (1).

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