Air compressor

Abstract

The invention relates to the field of air compressors, in particular to an air compressor which comprises an air storage tank, a water drainage assembly, a moisture absorption assembly, an exhaust pipe and an exhaust valve, the air storage tank is provided with an air storage cavity, the outer wall of the air storage tank is provided with a water drainage opening and an exhaust opening, the water drainage opening and the exhaust opening are both communicated with the air storage cavity, the water drainage assembly is connected to the inner wall of the water drainage opening, and the moisture absorption assembly is connected to the exhaust pipe. The drainage assembly communicates with the gas storage cavity and is used for discharging accumulated water at the bottom of the gas storage cavity, the moisture absorption assembly is connected to the inner wall of the exhaust port, communicates with the gas storage cavity and the exhaust pipe and is used for drying exhausted gas, and the exhaust valve is connected to the inner wall of the exhaust pipe. And the exhaust valve is used for controlling the on-off of the exhaust pipe. The drainage assembly drains accumulated water in the air storage tank, the moisture content of compressed air is reduced, the exhaust valve is opened, the compressed air is dried through the moisture absorption assembly when being exhausted, and the moisture content of the compressed air exhausted by the exhaust pipe is low.

Description

Technical Field

[0001] The present application relates to the field of air compressors, and in particular to an air compressor. Background Art

[0002] An air compressor, whose full name is air compressor, is a device that converts the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy. It is a device that generates air pressure for compressed air.

[0003] The working principle of the air compressor mainly involves three processes: compression, cooling and storage. During the storage stage, the air itself contains water molecules. As the pressure in the gas tank increases, water vapor is easy to condense into water. After a period of use, a certain amount of liquid water will accumulate at the bottom of the gas tank. The presence of liquid water reduces the gas storage capacity of the gas tank and also causes the discharged gas to contain too much water.

[0004] The water content in the gas discharged by the air compressor will bring many hazards, which will not only affect the normal operation of the equipment, but also have a serious impact on the production process and product quality. Summary of the invention

[0005] In order to reduce the water content of gas, the present application provides an air compressor.

[0006] The present application provides an air compressor adopting the following technical solution: An air compressor comprises an air storage tank, a drainage component, a moisture absorption component, an exhaust pipe and an exhaust valve, wherein the air storage tank is provided with an air storage cavity, and the outer wall of the air storage tank is provided with a drainage port and an exhaust port, both of which are connected to the air storage cavity, the drainage component is connected to the inner wall of the drainage port, the drainage component is connected to the air storage cavity, the drainage component is used to discharge the accumulated water at the bottom of the air storage cavity, the moisture absorption component is connected to the inner wall of the exhaust port, the moisture absorption component is connected to the air storage cavity and the exhaust pipe, the moisture absorption component is used to dry the exhausted gas, the exhaust valve is connected to the inner wall of the exhaust pipe, and the exhaust valve is used to control the on and off of the exhaust pipe.

[0007] By adopting the above technical solution, the drainage component discharges the accumulated water in the air tank to reduce the water content of the compressed air. The exhaust valve is opened, and the compressed air is first dried by the moisture absorption component when discharged, so the compressed air discharged from the exhaust pipe has less water content.

[0008] Preferably, the desiccant assembly includes a radiator, a filter, a first connecting pipe and a second connecting pipe, the radiator includes a heat sink, the heat sink is provided with a heat dissipation cavity, the heat sink is provided with a heat dissipation air inlet and a heat dissipation air outlet, the heat dissipation air inlet and the heat dissipation air outlet are both connected to the heat dissipation cavity, the filter includes a filter cartridge and a filter element, the filter cartridge is provided with a filter cavity, two ends of the filter element are respectively fixedly connected to the bottom wall and the top wall of the filter cavity, the filter cartridge is provided with a filter inlet and a filter outlet, the filter inlet and the filter outlet are both connected to the filter cavity, the filter inlet is arranged at the outer periphery of the filter element, the filter outlet is arranged at the inner periphery of the filter element, one end of the first connecting pipe is coaxially fixedly connected to the inner wall of the exhaust port, the other end of the first connecting pipe is coaxially fixedly connected to the inner wall of the heat dissipation air inlet, one end of the second connecting pipe is coaxially fixedly connected to the inner wall of the heat dissipation outlet, the other end of the second connecting pipe is coaxially fixedly connected to the inner wall of the filter inlet, and one end of the exhaust pipe is coaxially fixedly connected to the inner wall of the filter outlet.

[0009] By adopting the above technical solution, when the compressed air is discharged from the air outlet, it first dissipates heat through the radiator to reduce the water content of the air, and then passes through the filter to further reduce the water content of the air. The condensed water in the heat dissipation chamber flows back into the air storage chamber to be discharged through the drainage component.

[0010] Preferably, the radiator also includes a fan, the heat sink is fixedly connected to the upper end of the gas tank, the heat sink is provided with an installation cavity, the fan is fixedly connected to the inner wall of the installation cavity, the heat sink is provided with an air inlet and an air outlet, the air inlet and the air outlet are both connected to the installation cavity, and the air inlet and the air outlet are respectively provided on both sides of the fan.

[0011] By adopting the above technical solution, the rotation of the fan accelerates the air flow near the heat dissipation cavity, which is convenient for dissipating the heat of the compressed air, lowering the temperature of the compressed air, liquefying the water vapor, and reducing the water content of the air.

[0012] Preferably, the heat dissipation box is provided with a water storage cavity, the water storage cavity and the air inlet are both arranged on a side of the installation cavity away from the heat dissipation cavity, and the water storage cavity is arranged on the periphery of the air inlet.

[0013] By adopting the above technical solution, the fan rotates to allow air to enter the installation cavity from the air inlet and then be discharged from the air outlet. When the air passes through the water storage cavity, heat exchange and cooling occur, which facilitates the heat dissipation of the heat dissipation cavity.

[0014] Preferably, the drainage assembly includes a drain pipe and an electronic drain valve, the drain pipe is fixedly connected to the inner wall of the drain outlet, the drain pipe is connected to the air storage chamber, the electronic drain valve is connected to the inner wall of the drain pipe, and the electronic drain valve is used to control the on and off of the drain pipe.

[0015] By adopting the above technical solution, the electronic drain valve is opened intermittently, the pressure in the air storage chamber is greater than that in the outside air, and the compressed air presses the accumulated water at the bottom of the air storage chamber out through the drain pipe, which facilitates automatic drainage, reduces the water in the air storage chamber, and reduces the water content in the air.

[0016] Preferably, it also includes a water outlet pipe, the outer wall of the heat dissipation box is provided with a water inlet and a water outlet, the water inlet and the water outlet are both connected to the water storage chamber, one end of the drain pipe away from the air storage chamber is coaxially fixedly connected to the inner wall of the water inlet, and one end of the water outlet pipe is coaxially fixedly connected to the inner wall of the water outlet.

[0017] By adopting the above technical solution, the temperature of the accumulated water in the air storage chamber is relatively low, and the liquid discharged from the drainage pipe replaces the liquid in the water storage chamber, which is convenient for cooling the heat sink.

[0018] Preferably, it also includes a compression cylinder, which is fixedly connected to the upper end of the air storage tank, and the compression cylinder is arranged on the side of the heat dissipation cavity away from the installation cavity. The air outlet is arranged above the heat dissipation cavity, and the air outlet extends in a direction away from the installation cavity to penetrate the heat dissipation box, and the air outlet faces the compression cylinder.

[0019] By adopting the above technical solution, the fan rotates to allow air to enter from the air inlet and be discharged from the air outlet. The discharged air accelerates the air flow near the compression cylinder, which is convenient for heat dissipation of the compression cylinder, improves heat dissipation efficiency, and extends the service life of the compression cylinder.

[0020] Preferably, it also includes a discharge pipe, the compression cylinder is provided with a compression chamber and a cooling chamber, the cooling chamber is arranged on the periphery of the compression chamber, the outer wall of the compression cylinder is provided with a feed port and a discharge port, the feed port and the discharge port are both connected to the cooling chamber, one end of the water outlet pipe away from the heat dissipation box is coaxially fixedly connected to the inner wall of the feed port, and one end of the discharge pipe is coaxially fixedly connected to the inner wall of the discharge port.

[0021] By adopting the above technical solution, water is directly introduced into the cooling chamber to dissipate the heat of the compression cylinder, thereby improving the utilization rate of water resources and extending the service life of the compression cylinder.

[0022] Preferably, it also includes a water changing component, which includes a water tank, a water pump and a connecting pipe. The water tank is provided with a water storage chamber, one end of the discharge pipe is connected to the water storage chamber, the water pump is arranged in the water storage chamber, one end of the connecting pipe is coaxially fixedly connected to the outlet of the water pump, and the other end of the connecting pipe is connected to the cooling chamber after extending out of the water tank. The height of the discharge port is greater than the height of the feed port and the height of the connecting pipe. An overflow port is provided at the upper end of the water tank, and the overflow port is connected to the water storage chamber.

[0023] By adopting the above technical scheme, the water discharged from the air storage chamber enters the cooling chamber through the feed port, and the hot water with higher temperature in the upper part of the cooling chamber is automatically discharged into the water storage chamber. If the water temperature in the cooling chamber is relatively high as a whole, the water pump starts to extract the water in the water storage chamber and replace the water in the cooling chamber to facilitate the heat dissipation of the compression cylinder. When too much water accumulates in the water storage chamber, the water with higher temperature is discharged from the overflow port.

[0024] Preferably, it also includes a control component, which includes a control ball valve, a gear, a memory alloy, a sliding rod, a rack, a support plate and a switch, the control ball valve is connected to the inner wall of the connecting pipe, the valve stem of the control ball valve is coaxially fixedly connected to the gear after extending out of the connecting pipe, one end of the memory alloy is fixedly connected to the inner wall of the cooling chamber away from the compression chamber, the other end of the memory alloy is fixedly connected to one end of the sliding rod, the other end of the sliding rod is fixedly connected to the rack, the rack is meshed with the gear, the sliding rod is slidably connected to the outer wall of the compression cylinder, the support plate is provided on the side of the control ball valve away from the compression cylinder, the support plate is fixedly connected to the connecting pipe, the switch is fixedly connected to one end of the support plate facing the compression cylinder, the switch is used for abutment by the rack, and the switch is electrically connected to the water pump.

[0025] By adopting the above technical solution, when the overall water temperature in the cooling chamber is too high, the deformation of the memory alloy pushes the rack to slide, and the gear rotates to open the control ball valve, turn on the switch, and start the water pump to change the water in the cooling chamber, thereby improving the heat dissipation efficiency.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The drainage component discharges the accumulated water in the air tank to reduce the water content of the compressed air. The exhaust valve is opened, and the compressed air is first dried by the moisture absorption component when discharged. The compressed air discharged from the exhaust pipe has less water content; 2. The fan rotates to allow air to enter from the air inlet and be discharged from the air outlet. The discharged air accelerates the air flow near the compression cylinder, which is convenient for heat dissipation of the compression cylinder, improves heat dissipation efficiency, and extends the service life of the compression cylinder; 3. When the overall water temperature in the cooling chamber is too high, the deformation of the memory alloy pushes the rack to slide, and the gear rotates to open the control ball valve, turn on the switch, and start the water pump to change the water in the cooling chamber to improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an air compressor.

[0028] Figure 2 It is a cross-sectional view of an air compressor.

[0029] Figure 3 It is a schematic diagram of the internal structure of an air compressor after being cut open.

[0030] Figure 4 It is a schematic diagram of the internal structure after the compression cylinder, connecting pipe and control component are cut away.

[0031] Description of reference numerals: 1. gas storage tank; 11. gas storage cavity; 12. drain port; 13. exhaust port; 2. drain assembly; 21. drain pipe; 22. electronic drain valve; 3. moisture absorption assembly; 31. radiator; 311. heat sink; 3111. heat dissipation cavity; 3112. heat dissipation air inlet; 3113. heat dissipation air outlet; 3114. installation cavity; 3115. water storage cavity; 3116. air inlet; 3117. air outlet; 3118. water inlet; 3119. water outlet; 312. fan; 32. filter; 321. filter cartridge; 3211. filter cavity; 3212. filter air inlet; 3213. filter air outlet; 3 22. Filter element; 33. First connecting pipe; 34. Second connecting pipe; 4. Auxiliary component; 41. Exhaust pipe; 42. Exhaust valve; 43. Water outlet pipe; 44. Drive motor; 45. Compression cylinder; 451. Compression chamber; 452. Cooling chamber; 453. Feed inlet; 454. Discharge port; 46. Discharge pipe; 5. Water change component; 51. Water storage tank; 511. Water storage chamber; 512. Overflow port; 52. Water pump; 53. Connecting pipe; 6. Control component; 61. Control ball valve; 62. Gear; 63. Memory alloy; 64. Slide rod; 65. Rack; 66. Support plate; 661. Positioning port; 67. Positioning rod; 68. Switch. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses an air compressor. Figure 1 An air compressor includes an air storage tank 1, a drainage component 2, a moisture absorption component 3, an auxiliary component 4, a water exchange component 5 and a control component 6.

[0034] Reference Figure 2 The gas storage tank 1 is provided with a gas storage cavity 11 , and a water discharge port 12 and a gas discharge port 13 are provided at the upper end of the gas storage tank 1 , and both the water discharge port 12 and the gas discharge port 13 are connected to the gas storage cavity 11 .

[0035] The drainage component 2 is used to drain the accumulated water at the bottom of the air storage chamber 11. The drainage component 2 includes a drain pipe 21 and an electronic drain valve 22. The drain pipe 21 is coaxially fixedly connected to the inner wall of the drain port 12. The drain pipe 21 is connected to the air storage chamber 11. The lower end of the drain pipe 21 is close to the bottom wall of the air storage chamber 11. The electronic drain valve 22 is arranged above the air storage tank 1. The electronic drain valve 22 is connected to the inner wall of the drain pipe 21. The electronic drain valve 22 is used to control the on and off of the drain pipe 21.

[0036] Reference Figure 2 and Figure 3 The moisture absorption component 3 is used to dry the exhausted gas, and the moisture absorption component 3 includes a radiator 31, a filter 32, a first connecting pipe 33 and a second connecting pipe 34. The radiator 31 includes a heat dissipation box 311 and a fan 312. The heat dissipation box 311 is fixedly connected to the upper end of the gas storage tank 1. The heat dissipation box 311 is provided with a heat dissipation cavity 3111, and the heat dissipation cavity 3111 is arranged directly above the exhaust port 13. The lower end of the heat dissipation box 311 is provided with a heat dissipation air inlet 3112. The outer wall of the heat dissipation box 311 is provided with a heat dissipation air outlet 3113. The height of the heat dissipation air outlet 3113 is greater than the height of the heat dissipation air inlet 3112. The heat dissipation air inlet 3112 and the heat dissipation air outlet 3113 are both connected to the heat dissipation cavity 3111.

[0037] The heat dissipation box 311 is provided with an installation cavity 3114 and a water storage cavity 3115. The installation cavity 3114 is provided between the heat dissipation cavity 3111 and the drain port 12. The water storage cavity 3115 is provided on a side of the installation cavity 3114 away from the heat dissipation cavity 3111. The fan 312 is fixedly connected to the inner wall of the installation cavity 3114. The outer wall of the heat dissipation box 311 is provided with an air inlet 3116 and an air outlet 3117. The air inlet 3116 and the air outlet 3117 are both connected to the installation cavity 3114. The air inlet 3116 and the air outlet 3117 are respectively arranged on both sides of the fan 312, the air inlet 3116 is arranged on the inner periphery of the water storage chamber 3115, a plurality of air inlets 3116 are provided, and the plurality of air inlets 3116 are distributed at intervals on the outer wall of the heat sink 311, and a water storage chamber 3115 is arranged between adjacent air inlets 3116, the air outlet 3117 is arranged above the heat sink 3111, and the air outlet 3117 extends in a direction away from the installation chamber 3114 to penetrate the heat sink 311.

[0038] Reference Figure 3 The filter 32 includes a filter cartridge 321 and a filter core 322. The filter cartridge 321 is fixedly connected to the outer wall of the heat dissipation box 311. The axis of the filter cartridge 321 is vertical. The filter cartridge 321 is coaxially provided with a filter cavity 3211. The two ends of the filter core 322 are respectively fixedly connected to the bottom wall and the top wall of the filter cavity 3211. The lower end of the filter cartridge 321 is provided with a filter air inlet 3212. The upper end of the filter cartridge 321 is provided with a filter air outlet 3213. The filter air inlet 3212 and the filter air outlet 3213 are both connected to the filter cavity 3211. The filter air inlet 3212 is provided at the outer periphery of the filter core 322, and the filter air outlet 3213 is provided at the inner periphery of the filter core 322. The filter core 322 is a glass fiber filter core.

[0039] Reference Figure 2 and Figure 3One end of the first connecting pipe 33 is coaxially fixedly connected to the inner wall of the exhaust port 13, the other end of the first connecting pipe 33 is coaxially fixedly connected to the inner wall of the heat dissipation air inlet 3112, one end of the second connecting pipe 34 is coaxially fixedly connected to the inner wall of the heat dissipation air outlet 3113, and the other end of the second connecting pipe 34 is coaxially fixedly connected to the inner wall of the filter air inlet 3212.

[0040] Reference Figure 1 The auxiliary component 4 includes an exhaust pipe 41, an exhaust valve 42, a water outlet pipe 43, a driving motor 44, a compression cylinder 45 and a discharge pipe 46.

[0041] Reference Figure 1 and Figure 2 One end of the exhaust pipe 41 is coaxially fixedly connected to the inner wall of the filter outlet 3213. The exhaust valve 42 is connected to the inner wall of the exhaust pipe 41, and the exhaust valve 42 is used to control the on-off of the exhaust pipe 41. The outer wall of the heat dissipation box 311 is provided with a water inlet 3118 and a water outlet 3119, and the water inlet 3118 and the water outlet 3119 are both connected to the water storage chamber 3115. One end of the drain pipe 21 away from the air storage chamber 11 is coaxially fixedly connected to the inner wall of the water inlet 3118, and one end of the water outlet pipe 43 is coaxially fixedly connected to the inner wall of the water outlet 3119.

[0042] The compression cylinder 45 is arranged on the side of the heat sink 311 away from the drainage component 2, and the air outlet 3117 faces the compression cylinder 45. The drive motor 44 is arranged on the side of the compression cylinder 45 away from the heat sink 311. The drive motor 44 and the compression cylinder 45 are both fixedly connected to the upper end of the air storage tank 1, and the drive motor 44 is connected to the crankshaft of the compression cylinder 45 through a synchronous wheel and a synchronous belt.

[0043] Reference Figure 1 and Figure 2 The compression cylinder 45 is provided with a compression chamber 451 and a cooling chamber 452. The cooling chamber 452 is arranged on the outer periphery of the compression chamber 451. The outer wall of the compression cylinder 45 is provided with a feed port 453 and a discharge port 454. Both the feed port 453 and the discharge port 454 are connected to the cooling chamber 452. The height of the discharge port 454 is greater than the height of the feed port 453. One end of the water outlet pipe 43 away from the heat dissipation box 311 is coaxially fixedly connected to the inner wall of the feed port 453. One end of the discharge pipe 46 is coaxially fixedly connected to the inner wall of the discharge port 454.

[0044] The water exchange assembly 5 includes a water tank 51, a water pump 52 and a connecting pipe 53. The water tank 51 is arranged on the side of the driving motor 44 away from the compression cylinder 45. The water tank 51 is provided with a water storage chamber 511. One end of the discharge pipe 46 is connected to the upper end of the water storage chamber 511. The water pump 52 is arranged in the water storage chamber 511. One end of the connecting pipe 53 is coaxially fixedly connected to the outlet of the water pump 52. The other end of the connecting pipe 53 extends out of the water tank 51 and is connected to the cooling chamber 452. The height of the connecting pipe 53 is less than the height of the discharge port 454. An overflow port 512 is provided at the upper end of the water tank 51. The overflow port 512 is connected to the water storage chamber 511. The inner wall of the overflow port 512 discharges water to a designated position through an external hose.

[0045] Reference Figure 4 The control assembly 6 includes a control ball valve 61, a gear 62, a memory alloy 63, a slide rod 64, a rack 65, a support plate 66, a positioning rod 67 and a switch 68. The control ball valve 61 is connected to the inner wall of the connecting pipe 53. After the valve stem of the control ball valve 61 extends out of the connecting pipe 53, it is coaxially fixedly connected to the gear 62. The rotation axis of the gear 62 is vertical. One end of the memory alloy 63 is fixedly connected to the inner wall of the cooling chamber 452 away from the compression chamber 451. The other end of the memory alloy 63 is fixedly connected to one end of the slide rod 64. The other end of the slide rod 64 is fixedly connected to the rack 65. The slide rod 64 is slidably connected to the outer wall of the compression cylinder 45. The rack 65 is meshed with the gear 62.

[0046] Reference Figure 2 and Figure 4 The support plate 66 is arranged on the side of the control ball valve 61 away from the compression cylinder 45. The support plate 66 is fixedly connected to the outer wall of the connecting pipe 53. The support plate 66 is provided with a positioning port 661. The positioning rod 67 is slidably connected to the inner wall of the positioning port 661. One end of the positioning rod 67 is fixedly connected to the end of the rack 65 away from the slide rod 64. The switch 68 is fixedly connected to the end of the support plate 66 facing the compression cylinder 45. The switch 68 is used for abutting the rack 65. The switch 68 is electrically connected to the water pump 52.

[0047] The implementation principle of an air compressor in an embodiment of the present application is as follows: the electronic drain valve 22 is intermittently opened to discharge the water in the air storage chamber 11, and the water passes through the water storage chamber 3115, the cooling chamber 452 and the water storage chamber 511 in sequence to dissipate heat to the heat dissipation box 311 and the compression cylinder 45. The fan 312 rotates to accelerate the air flow near the heat dissipation chamber 3111 and the compression chamber 451. When the temperature in the cooling chamber 452 is too high, the control component 6 controls the water change component 5 to change the water.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air compressor, characterized in that: The invention comprises an air storage tank (1), a drainage component (2), a moisture absorption component (3), an exhaust pipe (41) and an exhaust valve (42). The air storage tank (1) is provided with an air storage cavity (11). The outer wall of the air storage tank (1) is provided with a drainage port (12) and an exhaust port (13). Both the drainage port (12) and the exhaust port (13) are connected to the air storage cavity (11). The drainage component (2) is connected to the inner wall of the drainage port (12). The drainage component (2) is connected to the air storage cavity (11). The drainage component (2) is used to discharge the accumulated water at the bottom of the air storage cavity (11). The moisture absorption component (3) is connected to the inner wall of the exhaust port (13). The moisture absorption component (3) is connected to the air storage cavity (11) and the exhaust pipe (41). The moisture absorption component (3) is used to dry the exhausted gas. The exhaust valve (42) is connected to the inner wall of the exhaust pipe (41). The exhaust valve (42) is used to control the on-off of the exhaust pipe (41).

2. An air compressor according to claim 1, characterized in that: The moisture absorption component (3) comprises a radiator (31), a filter (32), a first connecting pipe (33) and a second connecting pipe (34); the radiator (31) comprises a heat dissipation box (311); the heat dissipation box (311) is provided with a heat dissipation cavity (3111); the heat dissipation box (311) is provided with a heat dissipation air inlet (3112) and a heat dissipation air outlet (3113); the heat dissipation air inlet (3112) and the heat dissipation air outlet (3113) are both connected to the heat dissipation cavity (3111); the filter (32) comprises a filter cartridge (321) and a filter core (322); the filter cartridge (321) is provided with a filter cavity (3211); two ends of the filter core (322) are respectively fixedly connected to the bottom wall and the top wall of the filter cavity (3211); the filter cartridge (321) is provided with a filter air inlet (3212) and a filter core (322); The filter air inlet (3212) and the filter air outlet (3213) are both connected to the filter cavity (3211); the filter air inlet (3212) is arranged on the outer periphery of the filter core (322); the filter air outlet (3213) is arranged on the inner periphery of the filter core (322); one end of the first connecting pipe (33) is coaxially fixedly connected to the inner wall of the exhaust port (13); the other end of the first connecting pipe (33) is coaxially fixedly connected to the inner wall of the heat dissipation air inlet (3112); one end of the second connecting pipe (34) is coaxially fixedly connected to the inner wall of the heat dissipation air outlet (3113); the other end of the second connecting pipe (34) is coaxially fixedly connected to the inner wall of the filter air inlet (3212); and one end of the exhaust pipe (41) is coaxially fixedly connected to the inner wall of the filter air outlet (3213).

3. An air compressor according to claim 2, characterized in that: The radiator (31) further comprises a fan (312); the heat dissipation box (311) is fixedly connected to the upper end of the gas storage tank (1); the heat dissipation box (311) is provided with a mounting cavity (3114); the fan (312) is fixedly connected to the inner wall of the mounting cavity (3114); the heat dissipation box (311) is provided with an air inlet (3116) and an air outlet (3117); the air inlet (3116) and the air outlet (3117) are both connected to the mounting cavity (3114); and the air inlet (3116) and the air outlet (3117) are respectively provided on both sides of the fan (312).

4. An air compressor according to claim 3, characterized in that: The heat dissipation box (311) is provided with a water storage chamber (3115), the water storage chamber (3115) and the air inlet (3116) are both provided on a side of the installation chamber (3114) away from the heat dissipation chamber (3111), and the water storage chamber (3115) is provided on the periphery of the air inlet (3116).

5. An air compressor according to claim 4, characterized in that: The drainage assembly (2) comprises a drainage pipe (21) and an electronic drainage valve (22); the drainage pipe (21) is fixedly connected to the inner wall of the drainage port (12); the drainage pipe (21) is connected to the air storage chamber (11); the electronic drainage valve (22) is connected to the inner wall of the drainage pipe (21); and the electronic drainage valve (22) is used to control the on / off of the drainage pipe (21).

6. An air compressor according to claim 5, characterized in that: It also includes a water outlet pipe (43), the outer wall of the heat dissipation box (311) is provided with a water inlet (3118) and a water outlet (3119), the water inlet (3118) and the water outlet (3119) are both connected to the water storage chamber (3115), one end of the drainage pipe (21) away from the air storage chamber (11) is coaxially fixedly connected to the inner wall of the water inlet (3118), and one end of the water outlet pipe (43) is coaxially fixedly connected to the inner wall of the water outlet (3119).

7. An air compressor according to claim 6, characterized in that: It also comprises a compression cylinder (45), the compression cylinder (45) being fixedly connected to the upper end of the gas storage tank (1), the compression cylinder (45) being arranged on a side of the heat dissipation cavity (3111) away from the mounting cavity (3114), the air outlet (3117) being arranged above the heat dissipation cavity (3111), the air outlet (3117) extending in a direction away from the mounting cavity (3114) to pass through the heat dissipation box (311), and the air outlet (3117) facing the compression cylinder (45).

8. An air compressor according to claim 7, characterized in that: It also includes a discharge pipe (46), the compression cylinder (45) is provided with a compression chamber (451) and a cooling chamber (452), the cooling chamber (452) is arranged on the periphery of the compression chamber (451), the outer wall of the compression cylinder (45) is provided with a feed port (453) and a discharge port (454), the feed port (453) and the discharge port (454) are both connected to the cooling chamber (452), one end of the water outlet pipe (43) away from the heat dissipation box (311) is coaxially fixedly connected to the inner wall of the feed port (453), and one end of the discharge pipe (46) is coaxially fixedly connected to the inner wall of the discharge port (454).

9. An air compressor according to claim 8, characterized in that: The invention also comprises a water changing assembly (5), the water changing assembly (5) comprising a water storage tank (51), a water pump (52) and a connecting pipe (53), the water storage tank (51) being provided with a water storage chamber (511), one end of the discharge pipe (46) being connected to the water storage chamber (511), the water pump (52) being arranged in the water storage chamber (511), one end of the connecting pipe (53) being coaxially fixedly connected to the outlet of the water pump (52), the other end of the connecting pipe (53) extending out of the water storage tank (51) and connected to the cooling chamber (452), the height of the discharge port (454) being greater than the height of the feed port (453) and the height of the connecting pipe (53), the upper end of the water storage tank (51) being provided with an overflow port (512), the overflow port (512) being connected to the water storage chamber (511).

10. An air compressor according to claim 9, characterized in that: The invention also includes a control assembly (6), wherein the control assembly (6) includes a control ball valve (61), a gear (62), a memory alloy (63), a slide rod (64), a rack (65), a support plate (66) and a switch (68), wherein the control ball valve (61) is connected to the inner wall of the connecting pipe (53), and the valve stem of the control ball valve (61) is coaxially fixedly connected to the gear (62) after extending out of the connecting pipe (53), one end of the memory alloy (63) is fixedly connected to the inner wall of the cooling chamber (452) away from the compression chamber (451), and the other end of the memory alloy (63) is fixedly connected to the slide rod (64). 4), the other end of the slide bar (64) is fixedly connected to the rack (65), the rack (65) is meshed with the gear (62), the slide bar (64) is slidably connected to the outer wall of the compression cylinder (45), the support plate (66) is provided on the side of the control ball valve (61) away from the compression cylinder (45), the support plate (66) is fixedly connected to the connecting pipe (53), the switch (68) is fixedly connected to one end of the support plate (66) facing the compression cylinder (45), the switch (68) is used for the rack (65) to abut, and the switch (68) is electrically connected to the water pump (52).

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