An air compressor high efficiency cooling system

By installing cooling pipes and a cooling fan inside the air compressor housing, combined with an automatic liquid replenishment system, the problem of poor heat dissipation performance of the air compressor is solved, achieving a highly efficient cooling effect and extending the service life of the equipment.

CN224396648UActive Publication Date: 2026-06-23HEBEI ZHONGZHONG COLD ROLLING MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI ZHONGZHONG COLD ROLLING MATERIAL CO LTD
Filing Date
2025-06-13
Publication Date
2026-06-23

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    Figure CN224396648U_ABST
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Abstract

The utility model discloses a kind of air compressor high-efficiency cooling systems, including outer shell, compressor unit is arranged in outer shell, the outside of outer shell is provided with cooling liquid tank, cooling tube group is arranged in outer shell, cooling tube group is communicated with cooling liquid tank by water supply pipe and return pipe, cooling liquid tank is provided with liquid supplementing monitoring mechanism, outer shell is also provided with heat dissipation port on its side wall, heat dissipation port is provided with cooling fan, cooling liquid tank is also liquid supplementing pipe on its upper end, liquid supplementing pump is provided on liquid supplementing pipe.The utility model is provided with cooling tube group and cooling fan in outer shell, the inside of outer shell is cooled by cooperation, the circulation of cooling liquid in cooling tube group can take away the heat in outer shell, cooling fan can also exhaust the heat in outer shell, so it can greatly improve the heat dissipation effect inside outer shell, to ensure the normal operation of air compressor outer shell internal equipment, and prolong the service life of air compressor.
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Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and specifically to a high-efficiency cooling system for air compressors. Background Technology

[0002] Compressed air plays a crucial role in steel production, especially in cold rolling. Its main uses include, but are not limited to, strip cleaning, pickling, continuous coiling, pneumatic equipment, and hot-dip galvanizing equipment. Specifically in cold rolling, compressed air is used for purging, mist cooling, and various pneumatic instrument valves and air motors. These uses ensure the smooth operation of the cold rolling process, improving production efficiency and product quality. During operation, air compressors generate heat, which accumulates inside the casing. If the internal temperature of the casing is not cooled in time, it can damage internal equipment and affect the compressor's lifespan. Currently, the common cooling method for air compressor casings is to install a heat dissipation hole with a cooling fan to expel heat. However, this traditional cooling method has poor heat dissipation performance. After prolonged operation, the heat generated by the air compressor will still accumulate inside the casing, causing the internal temperature to rise and affecting the normal operation of the equipment. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-efficiency cooling system for air compressors, thereby solving the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: an air compressor high-efficiency cooling system, including an outer shell, a compressor unit disposed inside the outer shell, a coolant tank disposed on the outer side of the outer shell, a cooling pipe assembly disposed inside the outer shell, the cooling pipe assembly being connected to the coolant tank via a water supply pipe and a water return pipe, a liquid replenishment monitoring mechanism disposed on the coolant tank, a heat dissipation vent disposed on the side wall of the outer shell, a cooling fan disposed inside the heat dissipation vent, a liquid replenishment pipe disposed at the upper end of the coolant tank, a liquid replenishment pump disposed on the liquid replenishment pipe, and the liquid level monitoring mechanism controlling the start and stop of the liquid replenishment pump.

[0005] Furthermore, the cooling pipe assembly includes a diversion connector disposed at the upper and lower ends of the outer casing. Several heat dissipation pipes are evenly distributed between the diversion connectors. The upper diversion connector is connected to the water pump in the coolant tank through the water supply pipe, and the lower diversion connector is connected to the coolant tank through the return water pipe.

[0006] Furthermore, the surface of the heat dissipation pipe is evenly provided with several heat exchange fins.

[0007] Furthermore, the top of the upper diversion connector is provided with several water inlets, and water inlet pipes are provided at the water inlets. Each water inlet pipe is connected through a water distribution pipe, and the water supply pipe is connected to the water distribution pipe.

[0008] Furthermore, the fluid replenishment monitoring mechanism includes a float rod that penetrates the coolant tank vertically. One end of the float rod inside the coolant tank is connected to a float block, and a sensing block is provided at the end of the float rod that passes upward through the coolant tank. A mounting plate is provided on the top of the coolant tank at a position corresponding to the float rod. A first proximity switch and a second proximity switch are respectively provided at the upper and lower ends of the mounting plate. The sensing heads of the two proximity switches are positioned facing the sensing block. The first proximity switch and the sensing block cooperate to control the fluid replenishment pump to turn off, and the second proximity switch and the sensing block cooperate to control the fluid replenishment pump to turn on.

[0009] Furthermore, a retaining cylinder is provided on the top of the coolant tank at the position corresponding to the float rod perforation, and the float rod passes through the retaining cylinder.

[0010] Furthermore, the outer casing is provided with louvers inside its heat dissipation vents, and the louvers are located on the outside of the cooling fan.

[0011] The above-mentioned technical solution of this utility model has the following beneficial effects: By setting a cooling pipe group and a cooling fan in the outer shell, the two work together to cool the inside of the outer shell. The circulation of coolant in the cooling pipe group can remove the heat inside the outer shell, and the cooling fan can also exhaust the heat inside the outer shell. This can greatly improve the heat dissipation effect inside the outer shell, thereby ensuring the normal operation of the equipment inside the air compressor outer shell and extending the service life of the air compressor. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of the present utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a side view of the cooling pipe assembly in an embodiment of the present invention. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1-3 As shown, the air compressor cooling system described in this embodiment includes an outer casing 1, a compressor unit 2 disposed inside the outer casing 1, a coolant tank 3 disposed on the outer side of the outer casing 1, a cooling pipe assembly disposed inside the outer casing 1, the cooling pipe assembly being connected to the coolant tank 3 via a water supply pipe 4 and a water return pipe 5, a liquid replenishment monitoring mechanism disposed on the coolant tank 3, a heat dissipation vent 1a disposed on the side wall of the outer casing 1, a cooling fan 6 disposed inside the heat dissipation vent 1a, a liquid replenishment pipe 7 disposed at the upper end of the coolant tank 3, a liquid replenishment pump 8 disposed on the liquid replenishment pipe 7, and a liquid level monitoring mechanism controlling the start and stop of the liquid replenishment pump 8.

[0019] The air inlet pipe 24 and the air outlet pipe 25 of the compressor unit 2 both pass through the outer casing 1 and extend to the outside of the outer casing 1. In this way, external air can enter the interior of the compressor unit 2 along the air inlet pipe 24, and the compressed air can be discharged for use through the air outlet pipe 25.

[0020] The cooling pipe assembly includes a diversion connector 9 located at the upper and lower ends inside the outer casing 1. Several heat dissipation pipes 10 are evenly distributed between the diversion connectors 9. The upper diversion connector 9 is connected to the water pump 11 in the coolant tank 3 through the water supply pipe 4, and the lower diversion connector 9 is connected to the coolant tank 3 through the return water pipe 5.

[0021] The surface of the heat sink 10 is evenly provided with a number of heat exchange fins 12, which are used to improve the efficiency of heat exchange between the heat sink 10 and the interior of the outer casing 1.

[0022] The top of the upper diversion connector 9 is provided with several water inlets, and water inlet pipes 13 are provided at the water inlets. Each water inlet pipe 13 is connected through a water distribution pipe 15, and the water supply pipe 4 is connected to the water distribution pipe 15.

[0023] The fluid replenishment monitoring mechanism includes a float 16 that runs vertically through the coolant tank 3. One end of the float 16 inside the coolant tank 3 is connected to a float block 17. A sensing block 18 is provided at the end of the float 16 that passes upward through the coolant tank 3. A mounting plate 19 is provided on the top of the coolant tank 3 on one side corresponding to the float 16. A first proximity switch 20 and a second proximity switch 21 are respectively provided at the upper and lower ends of the mounting plate 19. The sensing heads of the two proximity switches are positioned facing the sensing block 18. The first proximity switch 20 and the sensing block 18 work together to control the fluid replenishment pump 8 to turn off, and the second proximity switch 21 and the sensing block 18 work together to control the fluid replenishment pump 8 to turn on.

[0024] A retaining cylinder 22 is provided on the top of the coolant tank 3 at the position corresponding to the perforation of the float 16, and the float 16 passes through the retaining cylinder 22.

[0025] The outer casing 1 has a louver 23 inside its heat dissipation vent 1a, and the louver 23 is located on the outside of the cooling fan 6.

[0026] A heat dissipation vent and a cooling fan can also be installed on the upper part of the coolant tank 3, which can accelerate the cooling rate of the coolant.

[0027] The outer casing 1 is equipped with a control cabinet, which contains an operation panel and a PLC control system. The PLC control system controls the compressor unit 2, water pump 11, cooling fan 6, replenishment pump 8 and various proximity switches to operate, thereby enabling the electrical components to work together and achieve intelligent management.

[0028] The working principle of this utility model is as follows: The compressor unit 2 operates inside the outer casing 1. When cooling the interior of the outer casing 1, the cooling fan 6 at the heat dissipation port 1a is opened, and the cooling fan 6 dissipates the heat inside the outer casing 1. At the same time, the water pump 11 pumps the coolant from the coolant tank 3. The pumped coolant is sent through the water supply pipe 4 to the diverter 9 at the upper end of the outer casing 1. The coolant is then diverted through the diverter 9 and distributed to each heat dissipation pipe 10. The coolant in the heat dissipation pipe 10 is then collected through the diverter 9 at the lower end and finally sent back to the coolant tank 3 through the return water pipe 5. When the coolant circulates throughout the cooling pipe assembly, it exchanges heat with the heat inside the outer casing 1, thereby carrying away the heat inside the outer casing 1 and achieving cooling. As the coolant continues to circulate, it will evaporate and be lost. At this time, it is necessary to replenish the coolant in the coolant tank 3. As the coolant is continuously consumed, the coolant level in the coolant tank 3 will continuously decrease. At this time, the float 17 will move down with the decreasing coolant level, and the float 17 will also move down with the float rod 16 and the sensing block 18. When the coolant in the coolant tank 3 is low, the sensing block 18 at the top of the float rod 16 will contact the sensing end of the second proximity switch 21 on the coolant tank 3. This will trigger the second proximity switch 21 and cause it to send a signal to control the start of the replenishment pump 8. At this time, new coolant will be added to the coolant tank 3. As the coolant is replenished, the coolant level in the coolant tank 3 will continuously rise, and the float 17 will move up with the float rod 16 and the sensing block 18. When the coolant is full, the sensing block 18 will contact the sensing end of the first proximity switch 20 above. This will trigger the first proximity switch 20 and cause it to send a signal to control the stop of the replenishment pump 8. In this way, the automatic replenishment of coolant can be achieved.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-efficiency cooling system for an air compressor, characterized in that: The device includes an outer casing, within which a compressor unit is housed. A coolant tank is located on the outer side of the outer casing, and a cooling pipe assembly is also housed within the outer casing. The cooling pipe assembly is connected to the coolant tank via a supply pipe and a return pipe. A replenishment monitoring mechanism is installed on the coolant tank. A heat dissipation vent is also provided on the side wall of the outer casing, and a cooling fan is installed inside the heat dissipation vent. A replenishment pipe is also provided at the upper end of the coolant tank, and a replenishment pump is installed on the replenishment pipe. The liquid level monitoring mechanism controls the start and stop of the replenishment pump.

2. The high-efficiency cooling system for an air compressor according to claim 1, characterized in that: The cooling pipe assembly includes a diversion connector at the upper and lower ends of the outer casing. Several heat dissipation pipes are evenly distributed between the diversion connectors. The upper diversion connector is connected to the water pump in the coolant tank through the water supply pipe, and the lower diversion connector is connected to the coolant tank through the return pipe.

3. The high-efficiency cooling system for an air compressor according to claim 2, characterized in that: The surface of the heat dissipation pipe is evenly provided with several heat exchange fins.

4. The high-efficiency cooling system for an air compressor according to claim 3, characterized in that: The top of the upper diversion connector is provided with several water inlets, and water inlet pipes are provided at the water inlets. Each water inlet pipe is connected through a water distribution pipe, and the water supply pipe is connected to the water distribution pipe.

5. The high-efficiency cooling system for an air compressor according to claim 1, characterized in that: The fluid replenishment monitoring mechanism includes a float rod that runs vertically through the coolant tank. One end of the float rod inside the coolant tank is connected to a float block. A sensing block is installed at the end of the float rod that extends upward through the coolant tank. A mounting plate is installed on the top of the coolant tank on the side corresponding to the float rod. A first proximity switch and a second proximity switch are respectively installed at the upper and lower ends of the mounting plate. The sensing heads of the two proximity switches are positioned facing the sensing block. The first proximity switch and the sensing block work together to control the fluid replenishment pump to turn off, and the second proximity switch and the sensing block work together to control the fluid replenishment pump to turn on.

6. The high-efficiency cooling system for an air compressor according to claim 5, characterized in that: The top of the coolant tank is provided with a retaining cylinder at the position corresponding to the float rod perforation, and the float rod passes through the retaining cylinder.

7. The high-efficiency cooling system for an air compressor according to claim 1, characterized in that: The outer casing has louvers inside its heat dissipation vents, and the louvers are located on the outside of the cooling fan.