Double-cooling integrated air compressor

Abstract

The invention discloses a double-cooling integrated air compressor, and relates to the technical field of compressors. The double-cooling integrated air compressor comprises a motor, a fan assembly, a plurality of air cylinder cover assemblies and a plurality of air cylinders. The motor comprises a motor and a rotor shaft, the rotor shaft penetrates through the motor and extends along two sides of the motor, the motor is arranged on the side of the cylinder, and the fan assemblies are arranged at two ends of the rotor shaft. The cylinder cover assembly is arranged at the top of the cylinder and is composed of an upper cavity and a lower cavity, the upper cavity is arranged at the top of the lower cavity, and the upper cavity is used for injecting a cooling medium to take away heat in the lower cavity; the air cylinder comprises a valve plate valve assembly and a connecting rod piston assembly, the valve plate valve assembly is arranged at the top of the connecting rod piston assembly, the connecting rod piston assembly is rotationally connected with the rotor shaft, and the valve plate valve assembly and the connecting rod piston assembly are used for compressing air. By the adoption of the compressor, the problems that the compressor cannot conduct air cooling and water cooling at the same time, and is large in size and limited in use scene can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a double-cooling integrated air compressor. Background Art

[0002] An air compressor is a device used to draw external air into a cylinder for compression to form high-pressure air. The compression process follows the laws of thermodynamics. The temperature of the gas in the cylinder increases significantly during the compression process. Therefore, an efficient cooling system is required to maintain stable operation of the equipment and extend its service life.

[0003] At present, air compressors on the market mainly rely on external forced cooling. Common forms include air cooling and water cooling. However, whether it is air cooling or water cooling, additional external cooling devices (such as heat sink fins, cooling towers, water pumps, etc.) are required. This leads to the complex structure and large size of the air compressor. Especially in application scenarios with limited space (such as mobile equipment and small chemical plants), it has poor adaptability and cannot adjust the cooling method according to the installation location of the compressor.

[0004] Therefore, it is urgent to design a dual-cooling integrated air compressor to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a dual-cooling integrated air compressor, which can solve the problems in the prior art that the air compressor has a complex structure, a large volume, and the cooling method cannot be adjusted according to the installation position of the compressor.

[0006] In order to solve the above technical problems, the present invention provides a dual-cooling integrated air compressor, including a motor, a fan assembly, a plurality of cylinder head assemblies and a plurality of cylinders; the motor includes a motor and a rotor shaft, the rotor shaft penetrates the motor and extends along both sides of the motor, the motor is arranged on the side of the cylinder, and the fan assembly is arranged at both ends of the rotor shaft; the cylinder head assembly is arranged at the top of the cylinder, the cylinder head assembly consists of an upper chamber and a lower chamber, the upper chamber is arranged at the top of the lower chamber, and the upper chamber is used to inject cooling medium to take away the heat in the lower chamber; the cylinder includes a valve plate valve assembly and a connecting rod piston assembly, the valve plate valve assembly is arranged at the top of the connecting rod piston assembly, the connecting rod piston assembly is rotatably connected to the rotor shaft, and the valve plate valve assembly and the connecting rod piston assembly are used to compress air.

[0007] As an improvement of the above solution, the fan assembly includes a first fan impeller and a second fan impeller, the first fan impeller and the second fan impeller are respectively arranged at two ends of the rotor shaft, and the first fan impeller and the second fan impeller are assembled in opposite directions.

[0008] As an improvement to the above solution, the upper chamber is provided with an "S"-shaped flow channel. The head end of the "S"-shaped flow channel is provided with an inlet group, the tail end of the "S"-shaped flow channel is provided with an outlet group, and a sealing groove is provided on the periphery of the "S"-shaped flow channel. The sealing groove is combined with the cover plate on the top of the cylinder head assembly to form a sealed chamber.

[0009] As an improvement to the above solution, there are at least two cylinders, the number of the cylinder head assemblies is not less than the number of the cylinders, and at least one cylinder head assembly is provided on the top of each cylinder.

[0010] As an improvement to the above solution, two adjacent upper chambers are connected through a first three-way pipe and a second three-way pipe. The first three-way pipe is provided with a first interface, a second interface and a third interface. The first interface and the second interface are connected to the inlet groups of two adjacent upper chambers, and the third interface is used for inputting a cooling medium; the second three-way pipe is provided with a fourth interface, a fifth interface and a sixth interface. The fourth interface and the fifth interface are connected to the outlet groups of two adjacent upper chambers, and the sixth interface is used for outputting the cooling medium.

[0011] As an improvement to the above solution, the lower chamber is provided with a first chamber and a second chamber. At least one vent hole of the first chamber is provided on the side wall of the first chamber, and at least one vent hole of the second chamber is provided in the second chamber.

[0012] As an improvement to the above solution, the valve plate assembly includes an intake valve and an exhaust valve. The intake valve is connected to the bottom of the first chamber, and the exhaust valve is connected to the bottom of the second chamber.

[0013] As an improvement to the above solution, two adjacent lower chambers are connected through a first hollow pipe and a second hollow pipe. The first hollow pipe connects the vent holes of two adjacent first chambers, and the second hollow pipe connects the vent holes of the second chambers of two adjacent lower chambers; sealing rings are provided at both ends of the first hollow pipe and the second hollow pipe.

[0014] As an improvement to the above solution, at least one intake port is provided on the side wall of each of two adjacent first chambers, and the intake port is used for connecting with an external intake nozzle; at least one outlet port and at least one pressure relief valve are provided on the side wall of each of two adjacent second chambers, and the outlet port is used for connecting with the external outlet nozzle.

[0015] As an improvement to the above solution, the side wall of the cylinder is provided with heat dissipation fins with different lengths. The heat dissipation fins facing the motor are longer than the heat dissipation fins facing other directions.

[0016] The beneficial effects of implementing the present invention are as follows:

[0017] By setting different combined directions of the fan assemblies that rotate synchronously on the rotor shaft, the present invention can effectively remove the heat of the motor and the cylinder from different directions. At the same time, a circulating cooling medium can be injected into the upper chamber of the component of the cylinder head to remove the heat of the compressed air in the lower chamber, thereby achieving the effect of double cooling and temperature reduction.

[0018] By integrating the two cooling methods of air cooling and water cooling into the structure of the compressor itself, the present invention is simple to install and convenient to use flexibly. An external cooling fan can also be provided to blow-cool the cylinder head, and multiple cooling methods can be used in combination. Combined with the built-in extended heat dissipation fins provided on the cylinder liner, the temperature reduction effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the dual-cooling integrated air compressor of the present invention;

[0020] Figure 2 is a schematic structural diagram of the motor and fan assemblies of the dual-cooling integrated air compressor of the present invention;

[0021] Figure 3 is a schematic structural diagram of the cylinder of the dual-cooling integrated air compressor of the present invention;

[0022] Figure 4 is Figure 3 an enlarged view of area A in

[0023] Figure 5 is a schematic structural diagram of the upper chamber of the dual-cooling integrated air compressor of the present invention;

[0024] Figure 6 is a specific installation schematic diagram of the upper chamber of the dual-cooling integrated air compressor of the present invention;

[0025] Figure 7 is a schematic structural diagram of the lower chamber of the dual-cooling integrated air compressor of the present invention;

[0026] Figure 8 is a schematic structural diagram of the valve plate and valve assembly of the dual-cooling integrated air compressor of the present invention;

[0027] Figure 9 is Figure 8 an enlarged view of area A in

[0028] Figure 10 is a specific installation schematic diagram of the lower chamber of the dual-cooling integrated air compressor of the present invention;

[0029] Figure 11 is a schematic structural diagram of the heat dissipation fins of the dual-cooling integrated air compressor of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the dual-cooling integrated air compressor of the present invention includes a motor 1, a fan assembly 2, a plurality of cylinder head assemblies 3 and a plurality of cylinders 4; the motor 1 includes a motor 11 and a rotor shaft, the rotor shaft penetrates the motor 11 and extends along both sides of the motor 11, the motor 11 is arranged on the side of the cylinder 4, and the fan assembly 2 is arranged at both ends of the rotor shaft; the cylinder head assembly 3 is arranged at the top of the cylinder 4, the cylinder head assembly 3 is composed of an upper chamber 31 and a lower chamber 32, the upper chamber 31 is arranged at the top of the lower chamber 32, and the upper chamber 31 is used to inject cooling medium to take away the heat in the lower chamber 32; the cylinder 4 includes a valve plate valve assembly 41 and a connecting rod piston assembly 42, the valve plate valve assembly 41 is arranged at the top of the connecting rod piston assembly 42, the connecting rod piston assembly 42 is rotatably connected to the rotor shaft 12, and the valve plate valve assembly 41 and the connecting rod piston assembly 42 are used to compress air.

[0032] It should be noted that by setting the fan assembly 2 and the cylinder head assembly 3, the air compressor can be cooled by both air cooling and water cooling. By setting the fan assembly 2 at both ends of the rotor shaft 12, a flexible combination of multiple airflow directions can be used to select a suitable blowing method according to the installation position and space conditions of the air compressor. By setting the cylinder 4, the air entering from the lower chamber 32 can be compressed by the connecting rod piston assembly 42. By setting the cylinder head to be composed of the upper chamber 31 and the lower chamber 32 assembly, the heat in the lower chamber 32 can be taken away by injecting cooling medium into the upper chamber 31 when compressing the air. The air can be compressed by setting the valve plate valve assembly 41 and the connecting rod piston assembly 42.

[0033] See also Figure 2 The fan assembly 2 includes a first fan impeller 21 and a second fan impeller 22. The first fan impeller 21 and the second fan impeller 22 are respectively arranged at both ends of the rotor shaft 12. The assembly directions of the first fan impeller 21 and the second fan impeller 22 are opposite, so that air can be sent to the inside for cooling at both ends at the same time, hot air can be extracted to the outside, or air can be sent from one end and discharged from the other end for cooling, so as to select a suitable cooling method according to the fixed installation position and space of the air compressor.

[0034] See also Figure 5, the upper chamber 31 is provided with an "S"-shaped flow channel 311. The head end of the "S"-shaped flow channel 311 is provided with an inlet group 312, the tail end of the "S"-shaped flow channel 311 is provided with an outlet group 313, and a sealing groove 314 is arranged on the periphery of the "S"-shaped flow channel 311. The sealing groove 314 is combined with a cover plate 33 at the top of the cylinder head assembly to form a sealed chamber. By setting the flow channel as an "S" shape, the length of the flow channel in the upper chamber 31 can be maximized, and the path through which the cooling medium passes can be maximized, so as to maximize the cooling effect of the cooling medium.

[0035] Preferably, there are at least two cylinders 4. The number of cylinder head assemblies 3 is not less than the number of cylinders 4, and at least one cylinder head assembly 3 is provided on the top of each cylinder 4. By setting different numbers of cylinders, different usage scenarios can be satisfied, but in all cases, a cylinder head assembly needs to be provided on the top of the cylinder 4 to take away heat. In this embodiment, the number of cylinders 4 is two.

[0036] See Figure 6 , two adjacent upper chambers 31 are connected through a first three-way pipe 315 and a second three-way pipe 316. The first three-way pipe 315 is provided with a first interface 315a, a second interface 315b, and a third interface 315c. The first interface 315a and the second interface 315b are connected to the inlet groups 312 of two adjacent upper chambers 31, and the third interface 315c is used for inputting the cooling medium; the second three-way pipe 316 is provided with a fourth interface 316a, a fifth interface 316b, and a sixth interface 316c. The fourth interface 316a and the fifth interface 316b are connected to the outlet groups 313 of two adjacent upper chambers 31, and the sixth interface 316c is used for outputting the cooling medium. During actual use, by inputting the cooling medium from the third interface 315c, after it enters the first three-way pipe 315, it will enter the "S"-shaped flow channel 311 through the first interface 315a and the second interface 315b. After passing through the entire "S"-shaped flow channel 311, it will enter the second three-way pipe 316 through the fourth interface 316a and the fifth interface 316b, and finally gather at the sixth interface 316c and be discharged.

[0037] See Figure 7 , the lower chamber 32 is provided with a first chamber 321 and a second chamber 322. At least one first chamber vent hole 323 is provided on the side wall of the first chamber 321, and at least one second chamber vent hole 324 is provided in the second chamber 322. By providing vent holes, air can be discharged or inhaled from this chamber.

[0038] See Figure 4 , Figure 8 and Figure 9, the valve plate assembly 41 of the valve includes an intake valve 411 and an exhaust valve 412. The intake valve 411 is connected to the bottom of the first chamber 321, and the exhaust valve 412 is connected to the bottom of the second chamber 324. By arranging the intake valve 411 at the bottom of the first chamber 321, the air entering from the first chamber 321 is compressed by the connecting rod piston assembly 42 in the cylinder 4. By arranging the exhaust valve 412 at the bottom of the second chamber 322, the compressed air can be discharged from the second chamber 322.

[0039] See Figure 10 , two adjacent lower chambers 32 are connected through a first hollow tube 325 and a second hollow tube 326. The first hollow tube 325 connects two adjacent first chamber vent holes 323, and the second hollow tube 326 connects the second chamber vent holes 324 of two adjacent lower chambers. By arranging the first hollow tube 325 and the second hollow tube 326, the adjacent lower chambers 32 can be connected, enabling the compressor to adjust the number of intake ports 327 according to actual needs. Sealing rings 329 are provided at both ends of the first hollow tube 325 and the second hollow tube 326 to prevent air leakage between the first hollow tube 325, the second hollow tube 326 and the lower chamber 32.

[0040] Specifically, at least one intake port 327 is provided on the side walls of two adjacent first chambers 321, and the intake port 327 is used to connect with an external intake nozzle; during actual use, the intake ports 327 of two adjacent first chambers 321 can be selected to be opened simultaneously according to requirements, or only the intake port 327 of one of the first chambers 321 can be opened.

[0041] See Figure 10 , at least one exhaust port 328 and at least one pressure relief valve 330 are provided on the side walls of two adjacent second chambers 322. The exhaust port 328 is used to connect with an external exhaust nozzle, and the pressure relief valve 330 is used to release the pressure in the chamber at the end of use.

[0042] See Figure 11 , heat dissipation fins 43 of different lengths are provided on the side wall of the cylinder 4. The heat dissipation fins 43 facing the motor 11 are longer than the heat dissipation fins 43 facing other directions. By designing heat dissipation fins 43 of different lengths, the heat dissipation area on the surface of the cylinder 4 can be effectively increased without increasing the external dimensions, and heat can be fully absorbed.

[0043] As can be seen from the above, the present invention realizes the cooling of the air compressor by using both air cooling and water cooling methods simultaneously by setting the fan assembly 2 and the cylinder head assembly 3. By assembling the first fan impeller 21 and the second fan impeller 22 in opposite directions, the appropriate cooling method can be selected by adjusting the combination method according to the installation and fixed position and space conditions of the air compressor. By setting an "S"-shaped flow channel 311 in the upper chamber 31, the path of the cooling medium passing through the upper chamber 31 is the longest, so as to maximize the cooling effect of the cooling medium. By designing the lower chamber 32 as the first chamber 321 and the second chamber 322 and setting the air inlet 327 and the air outlet 328, air can enter from the first chamber 321 and be discharged from the second chamber 322 after compression, so as to realize the normal operation of the air compressor. The heat dissipation fins 43 with different lengths are also provided to increase the heat dissipation area on the surface of the cylinder 4 and further enhance the heat dissipation effect.

[0044] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A dual-cooling integrated air compressor, characterized in that: It includes a motor, a fan assembly, a plurality of cylinder head assemblies and a plurality of cylinders; The motor comprises a motor and a rotor shaft, wherein the rotor shaft penetrates the motor and extends along both sides of the motor, the motor is arranged on the side of the cylinder, and the fan assembly is arranged at both ends of the rotor shaft; The cylinder head assembly is arranged at the top of the cylinder, and the cylinder head assembly consists of an upper chamber and a lower chamber, wherein the upper chamber is arranged at the top of the lower chamber, and the upper chamber is used to inject cooling medium to take away the heat in the lower chamber; The cylinder includes a valve plate valve assembly and a connecting rod piston assembly. The valve plate valve assembly is arranged on the top of the connecting rod piston assembly. The connecting rod piston assembly is rotatably connected to the rotor shaft. The valve plate valve assembly and the connecting rod piston assembly are used to compress air.

2. The dual-cooling integrated air compressor according to claim 1, characterized in that: The fan assembly includes a first fan impeller and a second fan impeller. The first fan impeller and the second fan impeller are respectively arranged at two ends of the rotor shaft. The first fan impeller and the second fan impeller are assembled in opposite directions.

3. The dual-cooling integrated air compressor according to claim 1, characterized in that: The upper chamber is provided with an "S"-shaped flow channel, the head end of the "S"-shaped flow channel is provided with an inlet group, the end of the "S"-shaped flow channel is provided with an outlet group, and the periphery of the "S"-shaped flow channel is provided with a sealing groove, which is combined with the cover plate on the top of the cylinder head assembly to form a sealed chamber.

4. The dual-cooling integrated air compressor according to claim 1, characterized in that: There are at least two cylinders, the number of the cylinder head assemblies is not less than the number of the cylinders, and at least one cylinder head assembly is provided on the top of each cylinder.

5. The dual-cooling integrated air compressor according to claim 1, characterized in that: The two adjacent upper chambers are connected through a first three-way pipe and a second three-way pipe, the first three-way pipe is provided with a first interface, a second interface and a third interface, the first interface and the second interface are connected to the inlet groups of the two adjacent upper chambers, and the third interface is used to input cooling medium; The second three-way pipe is provided with a fourth interface, a fifth interface and a sixth interface, the fourth interface and the fifth interface are connected to the outlet groups of two adjacent upper chambers, and the sixth interface is used for outputting the cooling medium.

6. The dual-cooling integrated air compressor according to claim 1, characterized in that: The lower chamber is provided with a first chamber and a second chamber, the side wall of the first chamber is provided with at least one first chamber vent hole, and the second chamber is provided with at least one second chamber vent hole.

7. The dual-cooling integrated air compressor according to claim 1, characterized in that: The valve plate assembly includes an air inlet valve and an air outlet valve, wherein the air inlet valve is connected to the bottom of the first chamber, and the air outlet valve is connected to the bottom of the second chamber.

8. The dual-cooling integrated air compressor according to claim 6, characterized in that: The two adjacent lower chambers are connected through a first hollow tube and a second hollow tube, wherein the first hollow tube is connected to the air vents of the two adjacent first chambers, and the second hollow tube is connected to the air vents of the second chambers of the two adjacent lower chambers; Sealing rings are provided at both ends of the first hollow tube and the second hollow tube.

9. The dual-cooling integrated air compressor according to claim 1, characterized in that: The side walls of two adjacent first chambers are each provided with at least one air inlet, and the air inlet is used to be connected to an external air inlet nozzle; At least one air outlet and at least one pressure relief valve are provided on the side walls of two adjacent second chambers, and the air outlet is used to be connected to the external air outlet nozzle.

10. The dual-cooling integrated air compressor according to claim 1, characterized in that: The side wall of the cylinder is provided with cooling fins of different lengths, and the cooling fins facing the motor are longer than the cooling fins facing other directions.

Images