Energy-saving air compressor

Abstract

The application relates to the field of impeller air compressors, in particular to an energy-saving air compressor which comprises an air compressor body, a gas tank installed on the air compressor body, a cooling part and a cooling system arranged in the air compressor body, wherein the cooling system comprises a cooling pipe wiring shell, the cooling part and a separation shell; in the application, the impeller cooling pipe directly corresponds to the high-speed and high-friction heat generation impeller part, and the motor cooling pipe directly corresponds to the main heat source motor part. The layout enables the cooling medium to directly penetrate into the core heat generation area of the equipment interior for heat exchange instead of only cooling the surface of the machine shell. Through the partition corresponding and fitting design, the cooling system can quickly take away the accumulated heat generated by the motor and the impeller, effectively avoids the phenomenon that the core component is overheated while the body surface temperature is normal, thereby greatly improving the response speed of heat exchange and the overall cooling efficiency, and guaranteeing the stability of the equipment under high load.

Description

Technical Field

[0001] This invention relates to the field of impeller air compressors, specifically an energy-saving air compressor. Background Technology

[0002] Air compressors have been widely used in industrial manufacturing, energy, medical and other fields in recent years. However, the motor of an air compressor generates a lot of heat during operation. If it is not cooled sufficiently, it can easily lead to overheating, performance degradation or even damage to the equipment.

[0003] The cooling systems of existing air compressors typically employ a single cooling medium circulation method, such as directly using external cooling water or configuring an independent internal circulation coolant system. This cooling method merely places pipes on the surface of the air compressor and cannot further cool the motor and air. As a result, when existing air compressors are working and generating load, heat concentration or overheating of core components (such as motors and impellers) may occur, while the surface temperature of the air compressor remains normal. Summary of the Invention

[0004] The present invention provides an energy-saving air compressor that overcomes the shortcomings described in the background art.

[0005] The technical solution adopted by this invention to solve its technical problem is: An energy-saving air compressor includes an air compressor body and an air tank installed on the air compressor body. It includes a cooling section and a cooling system disposed inside the air compressor body. The cooling system includes a cooling pipe routing housing, a cooling section and an isolation housing. The cooling section is disposed outside the cooling pipe routing housing and a portion of its surface abuts against the cooling pipe routing housing. The isolation housing is sleeved on both sides of the outer end of the cooling pipe routing housing. The air compressor body includes an impeller section and a motor section. The motor section is located in the middle of the air compressor body, while the impeller sections are symmetrically located at both ends of the air compressor body. The cooling pipe wiring housing includes an impeller cooling pipe, an airflow cooling pipe, and a motor cooling pipe. The airflow cooling pipes are symmetrically located on the left and right sides of the motor cooling pipes. The impeller cooling pipes are respectively located on the side of the two airflow cooling pipes away from the motor cooling pipes. The impeller cooling pipes correspond to the impeller section, and the motor cooling pipes correspond to the motor section. There is an air passage between the isolation housing and the cooling pipe wiring housing for airflow. The two ends of the air passage extend to the end face of the impeller cooling pipe and the circumferential surface of the airflow cooling pipe, respectively, and the cooling section extends through the air passage.

[0006] In a preferred embodiment, the air passage includes a first connecting hole disposed on the surface of the impeller cooling pipe and a second connecting hole disposed on the periphery of the airflow cooling pipe. The surface of the isolation housing is provided with a plurality of dividing plates extending toward the center. The air passage is divided into a plurality of air passage units by the dividing plates. Each air passage unit is provided with at least one first connecting hole and a second connecting hole. There is a gap between every two adjacent air passage units. The two ends of the isolation housing abut against the impeller cooling pipe and the motor cooling pipe, respectively.

[0007] In a preferred embodiment, the airflow cooling pipe has a layered raised structure, the height of the side of the airflow cooling pipe near the second connecting hole is higher than the height of the side of the airflow cooling pipe near the first connecting hole, the cooling pipe wiring housing has a hollow structure, the impeller in the impeller part is disposed on the surface of the impeller cooling pipe, and the motor in the motor part is disposed inside the motor cooling pipe. The cooling section includes a circulation pipe and coolant circulation sections symmetrically arranged on both sides of the circulation pipe. One end of the coolant circulation section is connected to the circulation pipe, while the other end extends sequentially along the surface of the impeller cooling pipe, the airflow cooling pipe, and the motor cooling pipe.

[0008] In a preferred embodiment, the coolant circulation section includes four sets of cooling pipe groups, each set of cooling pipe groups includes multiple individual cooling pipes, and each individual cooling pipe includes a first segment pipe, a second segment pipe, and a third segment pipe. The first segment pipe is located near the impeller cooling pipe, the second segment pipe is located near the airflow cooling pipe, and the third segment pipe is located near the motor cooling pipe. There is an included angle between two adjacent cooling pipe units. The included angle between two adjacent second-section pipes is greater than the included angle between two adjacent first-section pipes. The included angle between two adjacent second-section pipes is less than the included angle between two adjacent third-section pipes. The third-section pipes in all cooling pipe groups are arranged in a ring at intervals.

[0009] In a preferred embodiment, all segment tubes 1 within each cooling tube group are respectively located at positions corresponding to each air duct unit, and the segment tubes 2 extend along the surface of the airflow cooling tube.

[0010] In a preferred embodiment, the circulation pipe body includes a fixed plate, a first circulation plate, and a second circulation plate. The first circulation plate and the second circulation plate are symmetrically arranged on the left and right sides of the fixed plate, and the first circulation plate and the second circulation plate are connected through multiple through holes. The first circulation plate and the second circulation plate are both supplied with coolant by an external pump through a connecting pipe. The coolant flows in from the first circulation plate and flows out from the second circulation plate.

[0011] Compared with existing technologies, this technical solution has the following advantages: In this invention, the impeller cooling pipe directly corresponds to the high-speed, high-friction heat-generating impeller section, while the motor cooling pipe directly corresponds to the main heat source, the motor section. This layout allows the cooling medium to directly penetrate into the core heat-generating areas inside the equipment for heat exchange, rather than merely cooling the surface of the casing. Through this partitioned and corresponding design, the cooling system can quickly remove the accumulated heat generated by the motor and impeller, effectively avoiding the phenomenon of "normal surface temperature but overheated core components," thereby significantly improving the heat exchange response speed and overall cooling efficiency, and ensuring the stability of the equipment under high loads.

[0012] In this invention, external airflow can simultaneously pass through the interior of the air duct unit via the first and second connecting holes, forming a multi-channel air intake structure, thereby effectively increasing the air intake volume per unit time. Simultaneously, the spacing between adjacent air duct units provides additional buffering and guiding space for airflow convergence and flow, further ensuring sufficient air intake volume. When external air enters each air duct unit via the first and second connecting holes, it is guided to different independent areas by the separating plates. During the flow process, the air directly exchanges heat over a large area with the surfaces of the impeller cooling pipes and airflow cooling pipes containing the internal cooling medium. This zoned design allows cold air to penetrate deep into the equipment, precisely covering and cooling core heat-generating components such as the impeller and motor.

[0013] When external air enters each individual air duct unit through the first and second connecting holes, it is guided to different independent areas by the separating plate. During the flow, the air directly exchanges heat over a large area with the surfaces of the impeller cooling pipes and airflow cooling pipes through which the internal cooling medium flows. This zoned design allows cold air to penetrate deep into the equipment, precisely covering and cooling core heat-generating components such as the impeller and motor. Furthermore, because the coolant circulation section is not independent but extends continuously along the surfaces of the impeller cooling pipes, airflow cooling pipes, and motor cooling pipes, this layout allows the coolant to flow through all critical heat-generating areas inside the air compressor, forming a complete heat absorption path. The circulation pipe body acts as a hub, ensuring continuous flow and replenishment of coolant within the system, maximizing the absorption of impeller friction heat, motor operating heat, and airflow compression heat. Compared to a single pipeline, this sequentially extending layout eliminates cooling blind spots, ensuring that heat is carried away from the source to the transmission medium, thereby significantly improving the overall system's heat exchange efficiency and operational stability. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is an overall diagram of the present invention.

[0016] Figure 2 This is an exploded view of the air compressor body.

[0017] Figure 3 This is a schematic diagram of the cooling system.

[0018] Figure 4 This is a half-sectional view of the housing containing the cooling pipes.

[0019] Figure 5 This is a schematic diagram of the planar structure of the isolation shell.

[0020] Figure 6 This is a schematic diagram of the cooling section.

[0021] Figure 7 This is a schematic diagram of the coolant circulation system.

[0022] Figure 8 for Figure 7 Another perspective illustration.

[0023] Figure 9 This is a schematic diagram of a single cooling pipe unit.

[0024] Figure 10 This is a schematic diagram of the circulation tube.

[0025] In the diagram: 1. Air compressor body; 2. Air tank; Cooling system 11, air compressor body 12, impeller 121, motor 122; Cooling pipe wiring housing 111, cooling section 112, isolation housing 113, and partition plate 1131; Impeller cooling pipe 1111, airflow cooling pipe 1112, motor cooling pipe 1113, first connecting hole 1114, second connecting hole 1115; Circulation pipe body 1121, coolant circulation section 1122; Fixed plate 1211, first circulation plate 1212, second circulation plate 1213, connecting pipe 1214; Segment tube 1 1221, segment tube 2 1222, segment tube 3 1223. Detailed Implementation

[0026] like Figures 1 to 10 As shown, the present invention proposes an energy-saving air compressor, including an air compressor body 1 and an air tank 2 installed on the air compressor body 1. The feature is that it includes a cooling section 112 and a cooling system 11 disposed in the air compressor body 12. The cooling system 11 includes a cooling pipe wiring housing 111, a cooling section 112 and an isolation housing 113. The cooling section 112 is disposed outside the cooling pipe wiring housing 111 and a portion of its surface abuts against the cooling pipe wiring housing 111. The isolation housing 113 is sleeved on both sides of the outer end of the cooling pipe wiring housing 111. The air compressor body 12 includes an impeller section 121 and a motor section 122. The motor section 122 is located in the middle of the air compressor body 12, while the impeller section 121 is symmetrically located at both ends of the air compressor body 12. The cooling pipe wiring housing 111 includes an impeller cooling pipe 1111, an airflow cooling pipe 1112, and a motor cooling pipe 1113. The airflow cooling pipe 1112 is symmetrically located on the left and right sides of the motor cooling pipe 1113. The impeller cooling pipe 1111 is located on the side of the two airflow cooling pipes 1112 away from the motor cooling pipe 1113. The impeller cooling pipe 1111 corresponds to the impeller section 121, while the motor cooling pipe 1113 corresponds to the motor section 122. Existing technologies typically only arrange pipes on the surface of the air compressor, which is insufficient to address the problem of heat concentration inside the core components. In this invention, the cooling pipe housing 111 integrates dedicated pipes for different heat sources. The impeller cooling pipe 1111 directly corresponds to the high-speed, high-friction heat-generating impeller section 121, while the motor cooling pipe 1113 directly corresponds to the main heat source, the motor section 122. This layout allows the cooling medium to directly penetrate into the core heat-generating areas inside the equipment for heat exchange, rather than merely cooling the surface of the housing. Through this zoned and corresponding design, the cooling system can quickly remove the accumulated heat generated by the motor and impeller, effectively avoiding the phenomenon of "normal surface temperature but overheated core components," thereby significantly improving the heat exchange response speed and overall cooling efficiency, and ensuring the stability of the equipment under high loads.

[0027] An air passage exists between the isolation housing 113 and the cooling pipe wiring housing 111, allowing airflow. Both ends of this air passage extend to the end face of the impeller cooling pipe 1111 and the circumferential surface of the airflow cooling pipe 1112, respectively. The cooling section 112 extends through this air passage, forming a channel for gas flow and heat exchange. When airflow enters this air passage under the action of the impeller, it flows along the circumferential surface of the airflow cooling pipe 1112. Since the airflow cooling pipe 1112 is located on both sides of the motor cooling pipe and contains a cooling medium, the heat of the high-temperature gas flowing through the air passage is transferred to the cooling medium inside the pipe through the pipe wall. Furthermore, the cooling section 112 extends through this air passage, further increasing the heat exchange area or providing additional cooling effect.

[0028] Furthermore, the air passage includes a first connecting hole 1114 disposed on the surface of the impeller cooling pipe 1111 and a second connecting hole 1115 disposed on the periphery of the airflow cooling pipe 1112. The surface of the isolation housing 113 is provided with a plurality of dividing plates 1131 extending toward the center. The air passage is divided into a plurality of air passage units by the dividing plates 1131. Each air passage unit is provided with at least one first connecting hole 1114 and a second connecting hole 1115. There is a gap between every two adjacent air passage units. The two ends of the isolation housing 113 abut against the impeller cooling pipe 1111 and the motor cooling pipe 1113, respectively. This positioning allows external airflow to pass through both the first connecting hole 1114 and the second connecting hole 1115 inside the air duct unit simultaneously, forming a multi-channel air intake structure, thereby effectively increasing the air intake volume per unit time. At the same time, the spacing between adjacent air duct units provides additional buffering and guiding space for airflow convergence and flow, further ensuring sufficient air intake volume. When external air enters each individual air duct unit through the first connecting hole 1114 and the second connecting hole 1115, it is guided to different independent areas by the separating plate 1131. During the flow process, the air directly exchanges heat over a large area with the surfaces of the impeller cooling pipe 1111 and the airflow cooling pipe 1112, which carry the internal cooling medium. This partitioned design allows cold air to penetrate deep into the equipment, precisely covering and cooling the core heat-generating components such as the impeller section 121 and the motor section 122.

[0029] Furthermore, the airflow cooling pipe 1112 has a layered raised structure, and the height of the side of the airflow cooling pipe 1112 near the second connecting hole 1115 is higher than the height of the side of the airflow cooling pipe 1112 near the first connecting hole 1114. The cooling pipe wiring housing 111 has a hollow structure. The impeller in the impeller part 121 is disposed on the surface of the impeller cooling pipe 1111, while the motor in the motor part 122 is disposed in the motor cooling pipe 1113. The cooling part 112 includes a circulation pipe body 1121 and coolant circulation parts 1122 symmetrically disposed on both sides of the circulation pipe body 1121. One end of the coolant circulation part 1122 is connected to the circulation pipe body 1121, and the other end extends sequentially along the surface of the impeller cooling pipe 1111, the airflow cooling pipe 1112, and the motor cooling pipe 1113. Because the coolant circulation section 1122 is not independent, but extends continuously along the surfaces of the impeller cooling pipe 1111, the airflow cooling pipe 1112, and the motor cooling pipe 1113, this layout allows the coolant to flow through all key heat-generating areas inside the air compressor, forming a complete heat absorption path. The circulation pipe body 1121 acts as a hub, ensuring continuous flow and replenishment of the coolant within the system, maximizing the absorption of impeller friction heat, motor operating heat, and airflow compression heat. Compared to a single pipe, this sequentially extending layout eliminates cooling blind spots, ensuring that heat is carried away from its source to the transmission medium, thereby significantly improving the overall system's heat exchange efficiency and operational stability.

[0030] Furthermore, the coolant circulation section 1122 includes four sets of cooling pipe groups, each set of cooling pipe groups includes multiple individual cooling pipes, and each individual cooling pipe includes a first segment pipe 1221, a second segment pipe 1222, and a third segment pipe 1223. The first segment pipe 1221 is located near the impeller cooling pipe 1111, the second segment pipe 1222 is located near the airflow cooling pipe 1112, and the third segment pipe 1223 is located near the motor cooling pipe 1113. There is an included angle between two adjacent individual cooling pipes. The included angle between two adjacent second segment pipes 1222 is greater than the included angle between two adjacent first segment pipes 1221, and the included angle between two adjacent second segment pipes 1222 is less than the included angle between two adjacent third segment pipes 1223. The third segment pipes 1223 in all cooling pipe groups are arranged in a ring at intervals. Since the motor section 122 is typically the largest and most heat-concentrated core component in an air compressor, the segmented tubes 1223 in all cooling tube assemblies are arranged in a ring-shaped interval. This means that the cooling pipes form a closed or semi-closed cooling layer around the circumference of the motor section 122. This layout ensures that any point on the motor surface can directly face the cooling pipes, completely eliminating the heat dissipation dead zones present in traditional single-sided or localized cooling methods. This allows the heat generated by the motor to be dissipated evenly and quickly. Compared to segmented tubes 1221 and 1222, segmented tubes 1223 have the largest adjacent included angle, which is greater than that of segmented tubes 1222. In the geometric logic of the ring arrangement, the larger included angle, combined with the interval setting, usually means that the pipe body has a wider coverage span or a more extended layout in the circumferential direction of the motor. This design allows the coolant to adhere to the motor casing with the largest contact area or penetrate deep into the motor's heat dissipation fins. In conjunction with the flow of coolant, a highly efficient "liquid cooling shield" can be formed around the motor, quickly removing the high-load heat generated by the motor operation, preventing local overheating, and thus significantly improving the cooling efficiency of the motor section and the overall reliability of the equipment.

[0031] The segmented tubes 1221 are concentrated in the air passage through which the airflow must pass, which is equivalent to setting up a dense "heat dissipation tube array" in the gas flow channel. When the gas enters the air passage from the first connecting hole 1114, it cannot pass through in a straight line, but is forced to shuttle between the dense segmented tubes 1221. This greatly increases the contact area and collision frequency between the gas and the cooling tube wall, so that the heat inside the gas can be carried away by the cooling medium inside the tube more fully and quickly. Furthermore, all the segment tubes 1221 in each cooling tube group are respectively set at the corresponding position of each air passage unit, and the segment tubes 1222 extend along the surface of the airflow cooling tube 1112.

[0032] Furthermore, the circulation pipe body 1121 includes a fixed plate 1211, a first circulation plate 1212, and a second circulation plate 1213. The first circulation plate 1212 and the second circulation plate 1213 are symmetrically arranged on the left and right sides of the fixed plate 1211, and the first circulation plate 1212 and the second circulation plate 1213 are connected by multiple through holes. The first circulation plate 1212 and the second circulation plate 1213 are both supplied with coolant by an external pump through a connecting pipe 1214. The coolant flows in from the first circulation plate 1212 and flows out from the second circulation plate 1213.

[0033] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. An energy-saving air compressor, comprising an air compressor body (1) and an air tank (2) mounted on the air compressor body (1), characterized in that, The system includes a cooling section (112) and a cooling system (11) disposed within the air compressor body (12). The cooling system (11) includes a cooling pipe wiring housing (111), a cooling section (112), and an isolation housing (113). The cooling section (112) is disposed outside the cooling pipe wiring housing (111) and part of its surface abuts against the cooling pipe wiring housing (111). The isolation housing (113) is sleeved on both sides of the outer end of the cooling pipe wiring housing (111). The air compressor body (12) includes an impeller section (121) and a motor section (122). The motor section (122) is located in the middle of the air compressor body (12), while the impeller section (121) is symmetrically located at both ends of the air compressor body (12). The cooling pipe wiring housing (111) includes an impeller cooling pipe (1111), an airflow cooling pipe (1112), and a motor cooling pipe (1113). The airflow cooling pipe (1112) is symmetrically located on the left and right sides of the motor cooling pipe (1113). The impeller cooling pipe (1111) is located on the side of the two airflow cooling pipes (1112) away from the motor cooling pipe (1113). The impeller cooling pipe (1111) corresponds to the impeller section (121), while the motor cooling pipe (1113) corresponds to the motor section (122). There is an air passage for airflow between the isolation housing (113) and the cooling pipe wiring housing (111). The two ends of the air passage extend to the end face of the impeller cooling pipe (1111) and the circumferential surface of the airflow cooling pipe (1112), respectively. The cooling part (112) extends through the air passage. The air passage includes a first connecting hole (1114) disposed on the surface of the impeller cooling pipe (1111) and a second connecting hole (1115) disposed on the periphery of the airflow cooling pipe (1112). The surface of the isolation housing (113) is provided with a plurality of dividing plates (1131) extending toward the center. The air passage is divided into a plurality of air passage units by the dividing plates (1131). Each air passage unit is provided with at least one first connecting hole (1114) and a second connecting hole (1115). There is a gap between each pair of adjacent air passage units. The two ends of the isolation housing (113) abut against the impeller cooling pipe (1111) and the motor cooling pipe (1113), respectively.

2. The energy-saving air compressor according to claim 1, characterized in that, The airflow cooling pipe (1112) has a layered raised structure. The height of the side of the airflow cooling pipe (1112) near the second connecting hole (1115) is higher than the height of the side of the airflow cooling pipe (1112) near the first connecting hole (1114). The cooling pipe wiring housing (111) has a hollow structure. The impeller in the impeller part (121) is set on the surface of the impeller cooling pipe (1111), while the motor in the motor part (122) is set in the motor cooling pipe (1113). The cooling section (112) includes a circulation pipe (1121) and coolant circulation sections (1122) symmetrically arranged on both sides of the circulation pipe (1121). One end of the coolant circulation section (1122) is connected to the circulation pipe (1121), and the other end extends sequentially along the surface of the impeller cooling pipe (1111), the airflow cooling pipe (1112), and the motor cooling pipe (1113).

3. An energy-saving air compressor according to claim 2, characterized in that, The coolant circulation section (1122) includes four sets of cooling pipe groups. Each set of cooling pipe groups includes multiple individual cooling pipes. Each individual cooling pipe includes a first segment pipe (1221), a second segment pipe (1222), and a third segment pipe (1223). The first segment pipe (1221) is located near the impeller cooling pipe (1111), the second segment pipe (1222) is located near the airflow cooling pipe (1112), and the third segment pipe (1223) is located near the motor cooling pipe (1113). There is an included angle between two adjacent cooling pipe units. The included angle between two adjacent segment pipes (1222) is greater than the included angle between two adjacent segment pipes (1221). The included angle between two adjacent segment pipes (1222) is less than the included angle between two adjacent segment pipes (1223). All segment pipes (1223) in the cooling pipe group are arranged in a ring-shaped interval.

4. An energy-saving air compressor according to claim 3, characterized in that, All segment tubes (1221) in each cooling tube group are respectively set at the corresponding position of each air passage unit, and the segment tubes (1222) extend along the surface of the airflow cooling tube (1112).

5. An energy-saving air compressor according to claim 4, characterized in that, The circulation pipe body (1121) includes a fixed plate (1211), a first circulation plate (1212), and a second circulation plate (1213). The first circulation plate (1212) and the second circulation plate (1213) are symmetrically arranged on the left and right sides of the fixed plate (1211), and the first circulation plate (1212) and the second circulation plate (1213) are connected by multiple through holes. The first circulation plate (1212) and the second circulation plate (1213) are both supplied with coolant by an external pump through a connecting pipe (1214). The coolant flows in from the first circulation plate (1212) and flows out from the second circulation plate (1213).

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