Hydraulic oil cooler with oil tank

Abstract

The utility model discloses a hydraulic oil cooler with an oil tank, which relates to the technical field of oil coolers and comprises a box body, the oil tank is fixedly arranged at the bottom of the box body, and an oil pump, an evaporator, a compressor, a condenser and a liquid accumulator are fixedly arranged in the box body. A first needle valve is fixedly arranged at the joint of the evaporator and the input end of the compressor, a second needle valve is fixedly arranged at the joint of the output end of the liquid storage device and the evaporator, an oil outlet device is fixedly arranged at the top of the oil tank, and a condensation fan is fixedly arranged at the top of the box body. According to the hydraulic oil cooler with the oil tank, the temperature of hydraulic oil can be efficiently reduced, heat dissipation is enhanced through the arranged condensation fan, stable operation is ensured, energy is saved through the overall design, maintenance is convenient and fast, the service life of a hydraulic system is effectively prolonged, and the overall performance of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil cooler technology, and in particular to a hydraulic oil cooler with an oil tank. Background Technology

[0002] Hydraulic oil coolers are key equipment in hydraulic systems, primarily used to reduce the temperature of hydraulic oil and ensure the stable operation of the hydraulic system. With the rapid development of modern industry, hydraulic systems are becoming increasingly complex, and the requirements for oil temperature control are becoming more stringent.

[0003] While existing hydraulic oil coolers can achieve basic oil temperature control, their structural design is relatively loose, resulting in a large footprint and poor space utilization. Furthermore, their heat dissipation efficiency is low, especially in high-temperature environments, where insufficient cooling is likely to occur. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hydraulic oil cooler with an oil tank, which can solve the problems of loose structure, large footprint and insufficient cooling in high temperature environment.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A hydraulic oil cooler with an oil tank includes a housing. An oil tank is fixedly installed at the bottom of the housing. An oil pump, an evaporator, a compressor, a condenser, and a receiver are fixedly installed inside the housing. An input oil pipe is fixedly connected to the input end of the oil pump. One end of the input oil pipe, away from the oil pump, passes through the bottom of the housing and extends into the oil tank. The output end of the oil pump is fixedly connected to the evaporator. The evaporator is fixedly connected to the input end of the compressor, and a first needle valve is fixedly installed at the connection point between the two. The output end of the compressor is connected to the condenser... One end of the condenser is fixedly connected to the evaporator, and the other end of the condenser is fixedly connected to the input end of the liquid receiver. The output end of the liquid receiver is fixedly connected to the evaporator, and a second needle valve is fixedly installed at the connection between the two. An oil output pipe is fixedly connected to the evaporator, and an oil outlet is fixedly installed on the top of the oil tank. The end of the oil output pipe away from the evaporator passes through the side wall of the tank and is fixedly connected to the oil outlet. An air outlet is opened on the top of the tank, and a condensing fan is installed above the air outlet. The condensing fan is fixedly connected to the tank.

[0007] Preferably, an oil outlet filter is fixedly installed between the evaporator and the oil outlet, the oil outlet filter is located outside the housing and is connected to the output oil pipe.

[0008] Preferably, a bracket is fixedly installed inside the housing, the bracket is positioned above the oil pump, the evaporator, the compressor and the liquid receiver, the condenser is fixedly installed on the bracket, and several holes matching the condenser are opened on the two side walls of the bracket, through which the condenser passes.

[0009] Preferably, a low-pressure protection switch is fixedly installed at the connection between the evaporator and the input end of the compressor.

[0010] Preferably, a high-pressure protection switch is fixedly installed at the connection between the compressor output end and the condenser.

[0011] Preferably, air inlets are provided on both sides of the housing, and an air filter is provided on the inner side of the air inlet, and the air filter is fixedly connected to the housing.

[0012] Preferably, a refrigerant pressure gauge is fixedly installed on the front of the housing, with the high-pressure side of the refrigerant pressure gauge fixedly connected to the output end of the compressor and the low-pressure side fixedly connected to the input end of the compressor.

[0013] Preferably, a level gauge is fixedly installed on the oil tank.

[0014] Preferably, the oil tank has an oil inlet on the top and an oil outlet and several return ports on the side.

[0015] Preferably, casters are fixedly installed at the four corners of the bottom of the oil tank.

[0016] The beneficial effects of this utility model are:

[0017] This utility model discloses a hydraulic oil cooler with an oil tank. A feed inlet is located on the left side of the tank, equipped with a flexible feeding component. A vertically downward-pointing electric push rod is fixedly mounted on the upper surface of the inner wall of the tank. The output end of the electric push rod is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to a vertical cutting blade. A clamping component is located on the upper surface of the inner wall of the tank, positioned directly above the receiving roller. This design integrates multiple components into a compact structure, effectively reducing hydraulic oil temperature. The equipped condenser fan enhances heat dissipation, ensuring stable operation. The overall design is energy-efficient and easy to maintain, effectively extending the lifespan of the hydraulic system and improving the overall performance of the equipment. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3This is a schematic diagram of the structure of the box in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the evaporator, compressor and liquid receiver in this utility model.

[0022] In the diagram: 10, housing; 20, oil tank; 30, oil pump; 40, evaporator; 50, compressor; 60, condenser; 70, liquid receiver; 80, input oil pipe; 90, first needle valve; 100, second needle valve; 110, output oil pipe; 120, oil outlet; 130, air outlet; 140, condenser fan; 150, oil filter; 160, bracket; 170, low-pressure protection switch; 180, high-pressure protection switch; 190, air inlet; 200, air filter; 210, refrigerant pressure gauge; 220, level gauge; 230, oil inlet; 240, oil drain; 250, oil return port; 260, casters. Detailed Implementation

[0023] To make the technical problems solved, the technical solutions and the beneficial effects of the utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] The embodiments provided by this utility model are as follows: Figures 1-4 As shown, a hydraulic oil cooler with an oil tank includes a housing 10, an oil tank 20 fixedly installed at the bottom of the housing 10, an oil pump 30, an evaporator 40, a compressor 50, a condenser 60, and a receiver 70 fixedly installed inside the housing 10. An input oil pipe 80 is fixedly connected to the input end of the oil pump 30, with one end of the input oil pipe 80 passing through the bottom of the housing 10 and extending into the oil tank 20. The output end of the oil pump 30 is fixedly connected to the evaporator 40, and the evaporator 40 is fixedly connected to the input end of the compressor 50, with a first needle valve 90 fixedly installed at the connection point. The output end of the compressor 50 is connected to the condenser 60. One end of the condenser 60 is fixedly connected to the input end of the liquid receiver 70, and the output end of the liquid receiver 70 is fixedly connected to the evaporator 40. A second needle valve 100 is fixedly installed at the connection between the two. An oil output pipe 110 is fixedly connected to the evaporator 40. An oil outlet 120 is fixedly installed on the top of the oil tank 20. The end of the oil output pipe 110 away from the evaporator 40 passes through the side wall of the housing 10 and is fixedly connected to the oil outlet 120. An air outlet 130 is opened on the top of the housing 10. A condensing fan 140 is installed above the air outlet 130 and is fixedly connected to the housing 10.

[0025] In use, the operator starts the oil cooler via the control panel on the housing 10. The oil pump 30 draws high-temperature hydraulic oil from the oil tank 20 through the input oil pipe 80 and delivers it to the evaporator 40. The high-temperature hydraulic oil comes into contact with the low-temperature refrigerant in the evaporator 40 for heat exchange, and the high-temperature hydraulic oil is converted into low-temperature hydraulic oil and flows to the oil outlet 120 through the output oil pipe 110. The refrigerant vaporizes into refrigerant gas, which then flows from the evaporator 40 into the compressor 50. The compressor 50 draws in the refrigerant gas, compresses it, and converts it into high-temperature and high-pressure gas. The refrigerant gas is then discharged into the condenser 60, where it exchanges heat with the low-temperature intake air generated by the condenser fan 140 that passes through the condenser 60. This causes the high-temperature and high-pressure refrigerant gas to condense into refrigerant, while the low-temperature intake air becomes high-temperature outlet air and is discharged. The refrigerant then flows into the receiver 70, waiting to re-enter the evaporator 40 for heat exchange.

[0026] It should be noted that the first needle valve 90 and the second needle valve 100 have a throttling function. The first needle valve 90 can prevent hydraulic oil from flowing into the compressor 50, thus avoiding contamination of the compressor 50. The second needle valve 100 can prevent refrigerant from flowing into the evaporator 40 when not needed, thus avoiding waste of resources.

[0027] Preferably, an oil outlet filter 150 is fixedly installed between the evaporator 40 and the oil outlet 120. The oil outlet filter 150 is located outside the housing 10 and is connected to the output oil pipe 110. The oil outlet filter 150 can separate water and impurities in the hydraulic oil, maintain the cleanliness and stability of the oil, and thus extend the service life of the hydraulic system.

[0028] Preferably, a bracket 160 is fixedly installed inside the housing 10. The bracket 160 is positioned above the oil pump 30, evaporator 40, compressor 50, and liquid receiver 70. The condenser 60 is fixedly mounted on the bracket 160. Several holes matching the condenser 60 are opened on the two side walls of the bracket 160. The condenser 60 passes through the holes on the bracket 160. On the one hand, the bracket 160 supports and fixes the condenser 60, improving the stability of the condenser 60. On the other hand, the bracket 160 brings the condenser 60 closer to the condenser fan 140, improving the performance of the condenser fan 140.

[0029] Preferably, a low-pressure protection switch 170 is fixedly installed at the connection between the evaporator 40 and the input end of the compressor 50. When the low-pressure side pressure of the compressor 50 is too low, the low-pressure protection switch 170 will cut off the power supply to the compressor 50 to prevent insufficient refrigerant gas intake of the compressor 50 due to low pressure, which would increase the load on the compressor 50 and may cause the motor to burn out or mechanical parts to be damaged.

[0030] Preferably, a high-pressure protection switch 180 is fixedly installed at the connection between the output end of the compressor 50 and the condenser 60. When the high-pressure side pressure of the compressor 50 is too high, the high-pressure protection switch 180 will cut off the power supply to the compressor 50 to prevent the compressor 50 from being damaged due to excessive pressure.

[0031] Preferably, air inlets 190 are provided on both sides of the housing 10, and an air filter 200 is provided on the inner side of the air inlet 190. The air filter 200 is fixedly connected to the housing 10. The air filter 200 can prevent particulate pollutants from entering the housing 10 through the air inlet 190, thus keeping the oil cooler clean.

[0032] Preferably, a refrigerant pressure gauge 210 is fixedly installed on the front of the housing 10. The high-pressure side of the refrigerant pressure gauge 210 is fixedly connected to the output end of the compressor 50, and the low-pressure side is fixedly connected to the input end of the compressor 50. The operator can judge the working status of the compressor 50 according to the value on the refrigerant pressure gauge 210, which facilitates the operator to monitor the use of the oil cooler.

[0033] Preferably, a level gauge 220 is fixedly installed on the oil tank 20, which makes it easier for staff to monitor the oil level in the oil tank 20 and makes it more convenient to use.

[0034] Preferably, the oil tank 20 has an oil inlet 230 on the top and an oil outlet 240 and several return ports 250 on the side. The oil inlet 230 is used to add hydraulic oil to the oil tank 20 to ensure that there is enough oil in the system for circulation and cooling. The oil outlet 240 is used to drain the sediment or old oil at the bottom of the oil tank 20 to avoid pollution. The return ports 250 are used to return hot oil used by other mechanical equipment to the oil tank 20 to ensure that the oil can be continuously cooled during circulation.

[0035] Preferably, casters 260 are fixed at the four corners of the bottom of the oil tank 20 to facilitate the movement of the oil cooler by staff.

[0036] The working principle of this embodiment, and its more specific process, are as follows:

[0037] The operator injects room temperature hydraulic oil into the oil inlet 230. The hydraulic system then draws room temperature hydraulic oil from the outlet 120. This oil gradually transforms into high-temperature hydraulic oil and flows into the oil tank 20 through the return port 250. The operator starts the oil cooler via the control panel on the housing 10. The oil pump 30 draws high-temperature hydraulic oil from the oil tank 20 through the input oil pipe 80 and delivers it to the evaporator 40. The high-temperature hydraulic oil contacts the low-temperature refrigerant in the evaporator 40 for heat exchange, transforming into low-temperature hydraulic oil. This high-temperature hydraulic oil then flows through the output oil pipe 110 to the oil outlet filter 150. The filter 150 removes water and impurities from the hydraulic oil. The filtered hydraulic oil then flows to the outlet 120, where the refrigerant vaporizes into refrigerant gas. This gas then flows from the evaporator 40 into the compressor 50. The compressor 50 draws in the refrigerant gas, compresses it, and converts it into a high-temperature, high-pressure gas. The refrigerant gas is then discharged into the condenser 60, where it exchanges heat with the low-temperature intake air generated by the condenser fan 140 that passes through the condenser 60. This causes the high-temperature, high-pressure refrigerant gas to condense into refrigerant. Simultaneously, the low-temperature intake air becomes high-temperature outlet air and is discharged. The refrigerant then flows into the receiver 70, waiting to re-enter the evaporator 40 for heat exchange.

[0038] It should be noted that if the hydraulic oil temperature is too high, one round of condensation cycle may not be able to lower the oil temperature to normal temperature. In this case, the hydraulic oil can be drawn out again by the oil pump 30, and the above steps can be repeated to cool it down. After the hydraulic oil is cooled to normal temperature, the normal temperature hydraulic oil can be delivered to the hydraulic system for recycling through the oil outlet 120.

[0039] This utility model discloses a hydraulic oil cooler with an oil tank. An oil tank 20 is fixedly installed at the bottom of a housing 10. An oil pump 30, evaporator 40, compressor 50, condenser 60, and liquid receiver 70 are fixedly installed inside the housing 10. A first needle valve 90 is fixedly installed at the connection between the evaporator 40 and the compressor 50, and a second needle valve 100 is fixedly installed at the connection between the output end of the liquid receiver 70 and the evaporator 40. A condenser fan 140 is fixedly installed at the top of the housing 10. This hydraulic oil cooler integrates multiple components into one compact structure, effectively reducing hydraulic oil temperature. The condenser fan 140 enhances heat dissipation, ensuring stable operation. The overall design is energy-saving and easy to maintain, effectively extending the life of the hydraulic system and improving the overall performance of the equipment.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A hydraulic oil cooler with tank, comprising a tank (10), characterized in that: The bottom of the box (10) is fixedly provided with an oil tank (20), the box (10) is fixedly provided with an oil pump (30), an evaporator (40), a compressor (50), a condenser (60) and a liquid accumulator (70), the input end of the oil pump (30) is fixedly connected with an input oil pipe (80), one end of the input oil pipe (80) away from the oil pump (30) penetrates through the bottom of the box (10) and extends into the oil tank (20), the output end of the oil pump (30) is fixedly connected with the evaporator (40), the evaporator (40) is fixedly connected with the input end of the compressor (50), and a first needle valve (90) is fixedly arranged at the connecting position of the evaporator (40) and the compressor (50), the output end of the compressor (50) is fixedly connected with one end of the condenser (60), the other end of the condenser (60) is fixedly connected with the input end of the liquid accumulator (70), the output end of the liquid accumulator (70) is fixedly connected with the evaporator (40), and a second needle valve (100) is fixedly arranged at the connecting position of the liquid accumulator (70) and the evaporator (40), the evaporator (40) is fixedly connected with an output oil pipe (110), the top of the oil tank (20) is fixedly provided with an oil outlet device (120), one end of the output oil pipe (110) away from the evaporator (40) penetrates through the side wall of the box (10) and is fixedly connected with the oil outlet device (120), the top of the box (10) is provided with an air outlet (130), and a condenser fan (140) is arranged above the air outlet (130) and fixedly connected with the box (10).

2. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: An oil outlet filter (150) is fixedly arranged between the evaporator (40) and the oil outlet device (120), and the oil outlet filter (150) is arranged outside the box (10) and communicates with the output oil pipe (110).

3. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: A bracket (160) is fixedly arranged in the box (10), the bracket (160) is arranged above the oil pump (30), the evaporator (40), the compressor (50) and the liquid accumulator (70), the condenser (60) is fixedly arranged on the bracket (160), a plurality of holes matched with the condenser (60) are formed in the two side walls of the bracket (160), and the condenser (60) penetrates through the holes in the bracket (160).

4. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: A low-voltage protection switch (170) is fixedly arranged at the connecting position of the evaporator (40) and the input end of the compressor (50).

5. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: A high-voltage protection switch (180) is fixedly arranged at the connecting position of the compressor (50) and the condenser (60).

6. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: Air inlets (190) are formed in the two sides of the box (10), air filter screens (200) are arranged on the inner sides of the air inlets (190), and the air filter screens (200) are fixedly connected with the box (10).

7. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: The front surface of the box (10) is fixedly provided with a refrigerant pressure gauge (210), the high pressure side of the refrigerant pressure gauge (210) is fixedly connected with the output end of the compressor (50), and the low pressure side is fixedly connected with the input end of the compressor (50).

8. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: A liquid level gauge (220) is fixedly arranged on the oil tank (20).

9. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: An oil filling port (230) is arranged on the top of the oil tank (20), and an oil discharge port (240) and a plurality of oil return ports (250) are arranged on the side surface.

10. The hydraulic oil cooler with oil tank according to claim 1, characterized in that: The oil tank (20) is fixedly provided with a plurality of casters (260) at the four corners of the bottom.

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