Mobile construction machine vehicle hydraulic oil purifier

Abstract

The utility model provides a mobile engineering machinery vehicle hydraulic oil purification device, including the car body and setting on the car body coarse filter, fine filter, vacuum tank, motor oil pump group and electric control cabinet, is provided with walking wheel in the bottom surface four corners of car body, and the oil inlet of coarse filter is connected through the connecting pipe with hydraulic oil tank, is provided with the oil inlet valve on connecting pipe, and the oil outlet of coarse filter is connected with heater through pipeline, and heater, vacuum tank and condenser are connected in proper order through pipeline, and vacuum tank is connected with vacuum pump, and the oil outlet of this vacuum tank is connected with fine filter through pipeline and motor oil pump group, and the oil outlet of fine filter is connected with oil storage jar, and the bottom of condenser is provided with the drain valve, and its top is provided with the condensing pipe, the utility model discloses can filter out the impurity in the hydraulic oil through setting filter on the movable car body, guarantees the filtering effect simultaneously through the cooperation of heater, vacuum tank and condenser to remove the moisture in the hydraulic oil.

Description

Technical Field

[0001] This utility model relates to a hydraulic oil purification device, and more particularly to a hydraulic oil purification device for mobile engineering machinery vehicles. Background Technology

[0002] Construction machinery requires hydraulic oil to transmit power during high-intensity operations. To prevent contaminants from damaging the hydraulic system, purification devices are needed to filter and clean the hydraulic oil, removing impurities. However, traditional oil filters are inconvenient to transport and unsuitable for construction machinery operating in the field. Therefore, finding a convenient way to purify the hydraulic oil in construction machinery vehicles operating in the field is an urgent problem to be solved. Utility Model Content

[0003] This utility model addresses the problems and defects existing in the above-mentioned background technology by providing a mobile hydraulic oil purification device for engineering machinery vehicles that facilitates the purification of hydraulic oil in engineering machinery vehicles used in field operations.

[0004] To achieve the above objectives, this utility model provides a mobile hydraulic oil purification device for engineering machinery vehicles, including a vehicle body and a coarse filter, a fine filter, a vacuum tank, an electric motor oil pump assembly, and an electrical control cabinet installed on the vehicle body. Wheels are installed at the four corners of the vehicle body's underside. The coarse filter and the hydraulic oil tank are connected via a connecting pipe, and an oil inlet valve is installed on the connecting pipe. The oil outlet of the coarse filter is connected to a heater via a pipe. The heater, vacuum tank, and condenser are connected sequentially via pipes. The vacuum tank is connected to a vacuum pump, and its oil outlet is connected to the fine filter via a pipe and the electric motor oil pump assembly. The oil outlet of the fine filter is connected to an oil storage tank. A drain valve is installed at the bottom of the condenser, and a condenser pipe is installed at its top.

[0005] Furthermore, a vacuum gauge is installed on the vacuum vessel to measure the vacuum level inside.

[0006] Furthermore, the vacuum tank is connected in sequence to a drying filter, a vacuum breaking valve, and an air inlet valve via pipes.

[0007] Furthermore, there are level gauges above and below the vacuum tank for measuring the liquid level inside.

[0008] Furthermore, the coarse filter is a quick-opening bag filter.

[0009] Furthermore, the fine filter is a backwash filter, and an oil pressure gauge is installed on the fine filter.

[0010] Furthermore, the filter includes a primary fine filter and a secondary fine filter, wherein the secondary fine filter has a higher filtration accuracy than the primary filter.

[0011] Furthermore, the oil outlet of the fine filter is located tangentially to its tank body.

[0012] Furthermore, a one-way valve is provided on the vacuum pipeline connecting the vacuum tank and the vacuum pump, with the opening end of the one-way valve facing the vacuum tank to prevent the vacuum pump from reversing.

[0013] Compared with the prior art, the present invention has the following technical effects:

[0014] 1. This utility model can filter out impurities in hydraulic oil by setting a filter on a movable vehicle body, and at the same time remove water in the hydraulic oil by using a heater, vacuum tank and condenser to ensure the filtration effect;

[0015] 2. By setting up a drying filter, a vacuum breaking valve, and an air inlet valve, this utility model can replenish dry air into the vacuum tank, ensuring safety while breaking the water vapor saturation state inside the vacuum tank, promoting continuous evaporation of water vapor, and ensuring the filtration effect.

[0016] 3. This utility model uses a quick-opening filter for the coarse filter to facilitate filter element replacement. Since the coarse filter removes larger particles of impurities in the hydraulic oil, it is prone to clogging. Therefore, an open filter is used to improve ease of use. The fine filter uses a backwash filter to facilitate cleaning. The design is reasonable.

[0017] 4. The oil outlet of the suction filter of this utility model is located on the tangential direction of its tank body, which can form a vortex and generate turbulence during backwashing, thereby increasing the backwashing effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1. Vehicle body, 101. Base plate, 102. Push rod, 2. Vacuum pump, 3. Motor oil pump assembly, 4. Condenser, 5. Condenser pipe, 6. Heater, 7. Vacuum tank, 8. Vacuum gauge, 9. Electrical control cabinet, 10. Coarse filter, 11. Spare filter, 12. Fine filter, 13. Bracket, 14. Wheels. Detailed Implementation

[0020] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings:

[0021] Example: Figure 1As shown, the mobile engineering machinery vehicle hydraulic oil purification device of this embodiment includes a vehicle body 1 and a coarse filter 10, a fine filter 12, a vacuum tank 7, an electric motor oil pump group 3 and an electrical control cabinet 9 installed on the vehicle body 1. The vehicle body 1 is provided with four corners of the bottom surface of the vehicle body 1. The vehicle body 1 is composed of a base plate 101 and a push rod 102. The four corners of the bottom of the base plate 101 are provided with the four corners of the bottom. The four corners of the four corners of the four corners of the base plate 101 are directional wheels, and the other two are omnidirectional wheels. The inlet of the coarse filter 10 is connected to the hydraulic oil tank via a connecting pipe, which is equipped with an inlet valve. The outlet of the coarse filter 10 is connected to the heater 6 via a pipe. The heater 6, vacuum tank 7, and condenser 4 are connected in sequence via pipes. The vacuum tank 7 is connected to the vacuum pump 2. Opening the inlet valve allows the hydraulic oil in the hydraulic oil tank to enter the coarse filter 10, thereby removing larger particles and impurities from the hydraulic oil. The oil is then fed into the heater 6 to heat it. The heated hydraulic oil then enters the vacuum tank 7, where the water evaporates in the vacuum environment and is cooled by the condenser 4, thus removing water from the hydraulic oil. The outlet of the vacuum tank 7 is connected to the fine filter 12 via a pipe and a motor-driven oil pump assembly 3. The motor-driven oil pump assembly 3 draws the oil from the vacuum tank 7 into the fine filter 12 for fine filtration. The outlet of the fine filter 12 is connected to an oil storage tank, where the finely filtered hydraulic oil enters the oil storage tank. A drain valve is installed at the bottom of the condenser 4, and a condenser pipe 5 is installed at its top.

[0022] Vacuum gauge 8 is installed on vacuum tank 7 to measure its internal vacuum level. When vacuum tank 7 reaches the set vacuum level, vacuum pump 2 stops working. Since water vapor inside the vacuum tank easily reaches saturation and is difficult to extract effectively, it is necessary to replenish air periodically to break the saturation of water vapor and promote its continuous evaporation within vacuum tank 7, thus facilitating extraction. Therefore, in this embodiment, vacuum tank 7 is connected in sequence to a dryer filter, a vacuum breaker valve, and an air inlet valve via pipes to replenish dry air into vacuum tank 7.

[0023] In this embodiment, level gauges are installed above and below the vacuum tank 7 to measure the liquid level inside. By setting the level gauges, the hydraulic oil level inside the vacuum tank can be measured, and the motor oil pump assembly 3 is started according to the oil level.

[0024] In this embodiment, the coarse filter 10 is a quick-opening bag filter, which facilitates filter element replacement and improves ease of use.

[0025] In this embodiment, the fine filter 12 is a backwash filter, and an oil pressure gauge is installed on the fine filter 12. When the oil pressure gauge in the fine filter 12 reaches the set value, the backwash system is activated to clean the filter element. The filter includes a primary fine filter 12 and a secondary fine filter 12, wherein the filtration accuracy of the secondary fine filter 12 is greater than that of the primary filter. By setting two stages of fine filters 12, the filtration effect is improved. The oil outlet of the fine filter 12 is located tangentially to its tank body. This design allows turbulence to be generated during backwashing, thus increasing the backwashing effect.

[0026] In this embodiment, a one-way valve is provided on the vacuum pipeline connecting the vacuum tank 7 and the vacuum pump 2, with the opening end of the one-way valve facing the vacuum tank 7 to prevent the vacuum pump 2 from reversing. In this embodiment, both the vacuum pump 7 and the motor oil pump assembly 3 are connected to the electrical control cabinet 9. In this embodiment, the motor oil pump assembly 3 is either a screw pump unit or a gear pump unit.

[0027] In this embodiment, the vacuum tank 7 is fixed on the bracket 13, the bracket 13 is fixed on the base plate 101, the vacuum pump 7 and the motor oil pump group 3 are installed on the base plate 101, located below the vacuum tank 7, and the coarse filter 10 is also installed on the bracket. This arrangement helps to save space, reduce the size of the device, and facilitate transportation.

[0028] Due to the inconvenience of field maintenance, in order to prevent filter failure, a backup filter 11 is also provided in other embodiments of this utility model. The backup filter 11 is connected to the motor oil pump group 3 through pipes and valves.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulic oil purification device for mobile engineering machinery vehicles, characterized in that, The system includes a vehicle body and a coarse filter, a fine filter, a vacuum tank, an electric motor oil pump assembly, and an electrical control cabinet mounted on the vehicle body. Wheels are installed at the four corners of the vehicle body's underside. The inlet of the coarse filter is connected to the hydraulic oil tank via a connecting pipe, and an inlet valve is installed on the connecting pipe. The outlet of the coarse filter is connected to a heater via a pipe. The heater, vacuum tank, and condenser are connected sequentially via pipes. The vacuum tank is connected to a vacuum pump, and its outlet is connected to the fine filter via a pipe and the electric motor oil pump assembly. The outlet of the fine filter is connected to an oil storage tank. A drain valve is installed at the bottom of the condenser, and a condenser pipe is installed at its top.

2. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 1, characterized in that, A vacuum gauge is installed on the vacuum tank to measure the vacuum level inside.

3. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 2, characterized in that, The vacuum tank is connected in sequence to a dryer filter, a vacuum breaker valve, and an air inlet valve via pipes.

4. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 1, characterized in that, The vacuum tank has level gauges at the top and bottom for measuring the liquid level inside.

5. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 1, characterized in that, The coarse filter is a quick-opening bag filter.

6. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 1, characterized in that, The fine filter is a backwash filter, and an oil pressure gauge is installed on the fine filter.

7. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 6, characterized in that, The filter includes a primary fine filter and a secondary fine filter, wherein the secondary fine filter has a higher filtration accuracy than the primary filter.

8. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 6, characterized in that, The oil outlet of the fine filter is located tangentially to its tank body.

9. The hydraulic oil purification device for mobile engineering machinery vehicles according to claim 1, characterized in that, A one-way valve is provided on the vacuum pipeline connecting the vacuum tank and the vacuum pump, with the opening end of the one-way valve facing the vacuum tank.

Images