A wind energy refrigeration energy storage device

Abstract

The application discloses a wind energy refrigeration and energy storage device, which is characterized by the following steps: setting a wind power air compression device to compress air by wind energy, forming compressed air and outputting the compressed air to a gas storage device in a compressed air pipeline for temporary storage; setting a gas lift circulating expansion refrigeration device, the compressed air expands in the circulating refrigeration medium of the device and absorbs heat, so that the temperature of the circulating refrigeration medium is reduced, and the obtained cooled circulating refrigeration medium is output to a cold storage device for cold storage. When the external cooling demand end exists, the circulating refrigeration medium in the cold storage device can be used for cooling. In the wind energy refrigeration and energy storage device, wind energy can be converted into compressed air for energy storage in the gas storage device, and can also be converted into circulating refrigeration medium for cold storage in the cold storage device, so that the wind energy can be efficiently utilized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of wind energy storage, and particularly relates to a wind energy refrigeration and energy storage device. BACKGROUND

[0002] The southeast coastal areas and offshore areas of China are extremely rich in wind energy, but wind power generators have a great impact on the power grid, and further development has encountered a bottleneck, so that wind energy cannot be effectively utilized. The buildings in the southeast coastal cities of China consume a large amount of energy for refrigeration, and consume a large amount of electric energy during the peak power consumption period, and lack a device for utilizing wind energy for refrigeration and energy storage.

[0003] The existing energy storage mode of wind power generation is usually to build an energy storage power station to store electric energy by using the chemical energy of the power station. However, the construction cost and maintenance cost of the energy storage power station are very high, and when the cooling demand needs to be met, the energy utilization rate is low because the refrigeration is performed by the air conditioner host through output of electric energy. SUMMARY

[0004] To solve the above problems, the present application provides a wind energy refrigeration and energy storage device and an energy storage system, and the technical scheme is as follows:

[0005] The wind energy refrigeration and energy storage device comprises:

[0006] A wind air compression device is arranged for compressing air under the driving of wind force and outputting the air;

[0007] A compressed air pipeline is arranged, an input end of the compressed air pipeline is in communication with an output end of the wind air compression device, and a gas storage device is arranged on the compressed air pipeline for temporarily storing compressed air;

[0008] A gas lift circulating expansion refrigeration device is arranged, a gas input end of the gas lift circulating expansion refrigeration device is in communication with an output end of the compressed air pipeline, the compressed air entering the gas lift circulating expansion refrigeration device is expanded and absorbs heat in the circulating refrigeration medium to form the circulating refrigeration medium after cooling;

[0009] A refrigeration medium output end and a refrigeration medium input end of the gas lift circulating expansion refrigeration device are respectively in communication with an external building cooling supply end, or are respectively in communication with a cold storage device for storing energy of the circulating refrigeration medium after cooling.

[0010] The wind energy refrigeration and energy storage device comprises a bottom pipe, a gas lift circulating upward pipe, a top pipe and a gas lift circulating downward pipe which are sequentially and circularly connected to form a circulating pipeline;

[0011] A bubble generator is arranged at a lower end of the gas lift circulating upward pipe, and an output end of the compressed air pipeline extends into the circulating pipeline and is in communication with an input end of the bubble generator;

[0012] The connection between the top pipe and the gas lift circulating descending pipe is provided with a gas-liquid separator for separating and discharging the expanded air;

[0013] The connection between the gas lift circulating descending pipe and the bottom pipe is provided with the refrigerant input end and the refrigerant output end.

[0014] The wind energy refrigeration energy storage device further comprises a water turbine impeller, a transmission device and a generator;

[0015] The water turbine impeller is arranged in the gas lift circulating descending pipe;

[0016] The power input end of the transmission device extends into the circulating pipeline and is connected with the water turbine impeller, and the power output end of the transmission device is connected with the generator for driving the generator to generate electricity.

[0017] The wind energy refrigeration energy storage device further comprises a water turbine impeller, a transmission device and a generator;

[0018] The first end of the power input end extends into the circulating pipeline and is connected with the water turbine impeller, and the second end of the power input shaft is provided with the first pulley;

[0019] The second pulley is installed on the input shaft of the generator;

[0020] The transmission belt is respectively connected with the first pulley and the second pulley in a transmission manner.

[0021] The wind energy refrigeration energy storage device further comprises a water turbine impeller, a transmission device and a generator;

[0022] The input end and the output end of the ice slurry energy storage pool are respectively connected with the refrigerant output end and the refrigerant input end of the gas lift circulating expansion refrigeration device;

[0023] The stirring end of the stirrer is arranged in the ice slurry energy storage pool.

[0024] The wind energy refrigeration energy storage device further comprises a water turbine impeller, a transmission device and a generator;

[0025] The wind energy refrigeration energy storage device further comprises a water turbine impeller, a transmission device and a generator;

[0026] The power output end of the wind turbine impeller is connected with the input end of the speed changing device;

[0027] The output end of the variable speed device is connected with the power input end of the air compressor; the output end of the air compressor is connected with the input end of the compressed air pipeline.

[0028] The wind energy refrigeration energy storage device of the application comprises a wind power air compression device and an air compressor;

[0029] The electric energy output end of the wind power air compression device is connected with the electric energy input end of the air compressor; the output end of the air compressor is connected with the input end of the compressed air pipeline.

[0030] The wind energy refrigeration energy storage device of the application comprises:

[0031] The wind power air compression device is used for compressing and outputting air under the driving of wind power;

[0032] The compressed air pipeline is connected with the output end of the wind power air compression device; the compressed air pipeline is provided with a gas storage device for temporarily storing compressed air;

[0033] The pump wheel supercharged turbine expansion refrigeration machine is connected with the output end of the compressed air pipeline; the compressed air entering the pump wheel supercharged turbine expansion refrigeration machine is expanded and absorbs heat in the circulating refrigeration medium to form the circulating refrigeration medium after cooling;

[0034] The refrigeration medium output end and the refrigeration medium input end of the pump wheel supercharged turbine expansion refrigeration machine are respectively connected with an external building cooling end or are respectively connected with a cold storage device for storing energy of the circulating refrigeration medium after cooling.

[0035] The wind energy refrigeration energy storage device of the application comprises a bottom pipe, an ascending pipe, a top pipe and a descending pipe which are sequentially connected to form a circulating pipeline;

[0036] The ascending pipe is provided with a rotating shaft arranged from bottom to top; the rotating shaft is sequentially provided with a pump wheel, a first-stage expansion turbine and a multi-stage expansion turbine from top to bottom; the upper end of the rotating shaft extends out of the circulating pipeline and is connected with an input shaft of a generator;

[0037] The output end of the compressed air pipeline is connected with the ascending pipe and is located between the pump wheel and the expansion turbine;

[0038] The top pipe and the descending pipe are provided with a gas-liquid separator at the connection position, which is used for separating and discharging air after expansion;

[0039] The descending pipe and the bottom pipe are provided with the refrigeration medium input end and the refrigeration medium output end at the connection position.

[0040] Compared with the prior art, the present application has the following advantages and positive effects:

[0041] 1、The wind energy refrigeration and energy storage device of the embodiment of the present application is characterized in that: the wind energy is used to compress air to form compressed air, which is stored in the air storage device in the compressed air pipeline; the gas lift circulating expansion refrigeration device is provided, the compressed air expands in the circulating refrigeration medium in the device and absorbs heat, so that the temperature of the circulating refrigeration medium is reduced, and the cooled circulating refrigeration medium is output to the cold storage device for cold storage and energy storage or directly output to the external building cooling end. When the external cooling demand end exists, the circulating refrigeration medium in the cold storage device can be used for cooling. The wind energy refrigeration and energy storage device of the embodiment has low construction cost, and the wind energy can be converted into compressed air for energy storage in the air storage device, and can be converted into circulating refrigeration medium for cold storage and energy storage in the cold storage device, so that the wind energy can be efficiently utilized. In addition, the air is used as the working medium, which is a fluorine-free and environmentally friendly refrigeration method independent of traditional refrigerants.

[0042] 2、In the embodiment of the present application, the transmission device, water turbine impeller and generator are further arranged in the gas lift circulating expansion refrigeration device, the water turbine impeller is driven to rotate by the medium flow channel in the circulating pipeline, and the mechanical power is recovered by driving the hydraulic machinery to generate electricity through the transmission device, so that the electrical energy can be used for grid peak shaving. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 Fig. 1 is a schematic diagram of the wind energy refrigeration and energy storage device of the present application;

[0044] Figure 2 Fig. 3 is a schematic diagram of the gas lift circulating expansion refrigeration device of the wind energy refrigeration and energy storage device of the present application;

[0045] Figure 3 Fig. 4 is a schematic diagram of the pump wheel supercharging turbine expansion refrigerator of the wind energy refrigeration and energy storage device of the present application.

[0046] Explanation of reference numerals: 1-1: air-lift cycle expansion refrigeration device; 1-2: compressed air pipeline; 1-3: wind-driven air compression device; 2-1: compressed air pipeline; 2-2: bubble generator; 2-3: circulating refrigeration medium; 2-4: air-lift cycle riser; 2-5: gas-liquid separator; 2-6: air-lift cycle downcomer; 2-7: water turbine impeller; 2-8: transmission device; 2-9: generator; 2-10: refrigeration medium output end; 2-11: refrigeration medium input end; 3-1: pump wheel; 3-2: compressed air pipeline; 3-3: bubble generator; 3-4: primary expansion turbine; 3-5: multi-stage expansion turbine; 3-6: circulating refrigeration medium; 3-7: rotating shaft; 3-8: generator; 3-9: riser; 3-10: downcomer; 3-11: downcomer liquid; 3-12: gas-liquid separator. DETAILED DESCRIPTION

[0047] The wind energy refrigeration and energy storage device according to the present application is further described in detail below in conjunction with the accompanying drawings and specific examples. The advantages and features of the present application will be more apparent from the following description and claims.

[0048] Example 1

[0049] Reference Figure 1 In one embodiment, a wind energy refrigeration and energy storage device includes a wind-driven air compression device 1-3, a compressed air pipeline 1-2, and an air-lift cycle expansion refrigeration device 1-1.

[0050] The wind-driven air compression device 1-3 is used to compress air and output it under the impetus of wind power. The input end of the compressed air pipeline 1-2 is connected to the output end of the wind-driven air compression device 1-3, and a gas storage device is provided on the compressed air pipeline 1-2 for temporarily storing compressed air.

[0051] The gas input end of the air-lift cycle expansion device is connected to the output end of the compressed air pipeline 1-2, and the compressed air entering the air-lift cycle expansion device expands and absorbs heat from the circulating refrigeration medium, forming cooled circulating refrigeration medium.

[0052] The refrigeration medium output end and the refrigeration medium input end of the air-lift cycle expansion refrigeration device 1-1 are respectively connected to an external building cooling supply end, or are respectively connected to a cold storage device for storing cooled circulating refrigeration medium.

[0053] The embodiment is provided with a wind power air compression device 1-3 to compress air by wind energy, form compressed air and output to a storage device in a compressed air pipeline 1-2 for temporary storage. A gas lift circulating expansion refrigeration device 1-1 is provided, the compressed air expands in the circulating refrigeration medium in the device and absorbs heat, so that the temperature of the circulating refrigeration medium is reduced, and the obtained cooled circulating refrigeration medium is output to a cold storage device for cold storage and energy storage or directly output to an external building refrigeration end. When the external cooling demand end exists, the circulating refrigeration medium in the cold storage device can be introduced to provide cooling. In the wind energy refrigeration and energy storage device of the embodiment, wind energy can be converted into compressed air for energy storage in the storage device, and can also be converted into circulating refrigeration medium for cold storage in the cold storage device, so that the wind energy can be efficiently utilized. Moreover, the embodiment uses air as the working medium, which is a fluorine-free and environmentally friendly refrigeration method independent of traditional refrigerants.

[0054] The specific structure of the wind energy refrigeration and energy storage device of the embodiment will be further described below.

[0055] Referring to Figure 2 In the embodiment, the gas lift circulating expansion device includes a bottom pipe, a gas lift circulating rising pipe 2-4, a top pipe and a gas lift circulating descending pipe 2-5 which are sequentially connected end to end to form a circulating pipeline.

[0056] The lower end of the gas lift circulating rising pipe 2-4 is provided with a bubble generator 2-2, and the output end of the compressed air pipeline 2-1 extends into the circulating pipeline and is in communication with the input end of the bubble generator 2-2. The compressed air in the bubble generator 2-2 is released into the circulating refrigeration medium 2-3 through the fine holes of the bubble generator 2-2, so as to ensure the sufficient contact between the compressed air and the circulating refrigeration medium 2-3.

[0057] The connection between the top pipe and the gas lift circulating descending pipe 2-5 is provided with a gas-liquid separator 2-5 for separating and discharging the expanded air. The connection between the gas lift circulating descending pipe 2-5 and the bottom pipe is provided with a refrigeration medium input end 2-11 and a refrigeration medium output end 2-10 for outputting and returning the circulating refrigeration medium 2-3.

[0058] In the embodiment, in order to fully utilize the kinetic energy of the circulating refrigeration medium 2-3 in the circulating pipeline, the wind energy refrigeration and energy storage device can further include a water turbine impeller 2-7, a transmission device 2-8 and a generator 2-9.

[0059] The water turbine impeller 2-7 is arranged in the gas lift circulating descending pipe 2-5. The power input end of the transmission device 2-8 extends into the circulating pipeline and is connected with the water turbine impeller 2-7, and the power output end of the transmission device 2-8 is connected with the generator 2-9 for driving the generator 2-9 to generate electricity.

[0060] The transmission device 2-8 comprises a power input shaft, a first pulley, a transmission belt and a second pulley.

[0061] The first end of the power input end extends into the circulation pipeline and is connected with the water turbine impeller 2-7. The second end of the power input shaft is provided with the first pulley. The second pulley is installed on the input shaft of the generator 2-9. The transmission belt is connected with the first pulley and the second pulley respectively. The two pulleys and the transmission belt can amplify the rotation of the power input shaft, so that the input shaft of the generator 2-9 obtains higher rotation speed and improves the power generation efficiency.

[0062] In this embodiment, the transmission device 2-8, the water turbine impeller 2-7 and the generator 2-9 are further arranged in the gas lift circulation expansion refrigeration device 1-1. The medium flow channel in the circulation pipeline drives the water turbine impeller 2-7 to rotate, and the rotation is transmitted to the generator 2-9 through the transmission device 2-8 to generate electricity. In the process of compressing air by wind energy and storing energy and cold energy by phase change, the kinetic energy of the circulation refrigeration medium 2-3 is used to drive the hydraulic machinery to generate electricity and recover mechanical work. The generated electricity can be used for grid peak shaving.

[0063] In this embodiment, the circulation refrigeration medium 2-3 is water. The cold energy generated by the expansion of compressed air can be converted into ice slurry and stored in the circulation pipeline by phase change to achieve high-efficiency cold storage. The cold storage device can comprise an ice slurry storage tank and a stirrer.

[0064] The input end and the output end of the ice slurry storage tank are connected with the refrigeration medium output end 2-10 and the refrigeration medium input end 2-11 of the gas lift circulation expansion refrigeration device 1-1 respectively. The stirring end of the stirrer is arranged in the ice slurry storage tank and is used to stir the ice slurry in the ice slurry storage tank to keep the ice slurry flowing.

[0065] In this embodiment, the gas storage device can be a compressed air storage tank, or can use underground salt caves or abandoned mines to store compressed air.

[0066] In this embodiment, the wind power air compression device 1-3 comprises a wind turbine, a speed changing device and an air compressor. The power output end of the wind turbine is connected with the input end of the speed changing device. The output end of the speed changing device is connected with the power input end of the air compressor. The output end of the air compressor is connected with the input end of the compressed air pipeline 2-1. That is, the wind energy is used to directly compress air to form compressed air.

[0067] The wind turbine drives the air compressor through the speed changing device to complete the conversion from wind energy to compressed air energy, and releases compressed heat to the environment, which is the heating process of the air working medium heat pump. Since the compressed air is an elastic fluid, it has strong adaptability to wind power and does not need complex speed regulating mechanism, so the structure is simple and the technology is mature.

[0068] In other embodiments, the wind power air compression device 1-3 can also include a wind power generator and an air compressor, the power output end of the wind power generator is connected with the power input end of the air compressor, and the output end of the air compressor is connected with the input end of the compressed air pipeline 2-1. That is, the compressed air is prepared by using the power of the wind power generator (which can also be off-peak power).

[0069] The principle of the present embodiment is described as follows: the gas lift cycle has been widely used in drilling engineering and other fields. The essence of the gas lift cycle is that the compressed air expands to do work, driving the liquid cycle. According to the principle of thermodynamics, the gas expands to do work, which will cause temperature drop. Since the gas bubble has a large contact area with the liquid and a long contact time in the gas lift cycle, the liquid will fully transfer heat to the gas. During the process of the bubble and the liquid rising together, the static pressure gradually decreases, gradually expanding to do work, and the work is converted into the potential energy of the liquid, and at the same time, heat is absorbed from the liquid. That is, in the process of the gas lift cycle, a refrigeration effect is also accompanied. The present embodiment uses this refrigeration effect to form the refrigeration side of the air working fluid heat pump, and the thermodynamic process is approximately isothermal expansion, which has a high heat and work conversion efficiency. The kinetic energy of the circulating liquid can be used to drive the hydraulic machinery to do work and generate electricity to recover mechanical work. The structure is limited by the height of the device and is suitable for low-pressure compressed air sources. The water turbine of the present embodiment includes a similar hydraulic work mechanism.

[0070] Embodiment two

[0071] Referring to Figure 3 The wind energy refrigeration and energy storage device provided by the present embodiment replaces the gas lift cycle expansion device of the above-mentioned embodiment one with a pump wheel 3-1 pressurized turbine expansion refrigeration machine, which is described in detail as follows:

[0072] The wind energy refrigeration and energy storage device of the present embodiment includes a wind power air compression device 1-3, a compressed air pipeline 3-2, and a pump wheel 3-1 pressurized turbine expansion refrigeration machine.

[0073] Similarly, the wind power air compression device 1-3 is used to compress and output air under the push of wind power. The input end of the compressed air pipeline 3-2 is connected with the output end of the wind power air compression device 1-3, and the compressed air pipeline 3-2 is provided with a gas storage device for temporarily storing compressed air.

[0074] The gas input end of the pump wheel 3-1 pressurized turbine expansion refrigeration machine is connected with the output end of the compressed air pipeline 3-2. The compressed air entering the pump wheel 3-1 pressurized turbine expansion refrigeration machine expands and absorbs heat in the circulating refrigeration medium 3-6, forming the cooled circulating refrigeration medium 3-6.

[0075] The refrigerant output end and the refrigerant input end of the pump wheel 3-1 turbo-expansion refrigerating machine are respectively communicated with an external building cooling end, or are respectively communicated with a cold storage device for storing energy of the cooled circulating refrigerant 3-6.

[0076] Further, the pump wheel 3-1 turbo-expansion refrigerating machine can specifically include a bottom pipe, an ascending pipe 3-9, a top pipe and a descending pipe 3-10 connected in sequence to form a circulating pipeline.

[0077] The ascending pipe 3-9 is provided with a rotating shaft 3-7 arranged from bottom to top, and the rotating shaft 3-7 is provided with the pump wheel 3-1, the first-stage expansion turbine 3-4 and the multi-stage expansion turbine 3-5 arranged from top to bottom in sequence. The upper end of the rotating shaft 3-7 extends out of the circulating pipeline and is connected with an input shaft of the generator 3-8.

[0078] The output end of the compressed air pipeline 3-2 is communicated with the ascending pipe 3-9 and is located between the pump wheel 3-1 and the expansion turbine. The connection position of the top pipe and the descending pipe 3-10 is provided with an air-liquid separator 3-12 for separating and discharging the expanded air. The connection position of the descending pipe 3-10 and the bottom pipe is provided with the refrigerant input end and the refrigerant output end.

[0079] The circulating refrigerant 3-6 is pressurized by the pump wheel 3-1 to become a pressure liquid, the pressure liquid passes through the bubble generator 3-3, the compressed air in the bubble generator 3-3 is released into the pressure liquid through the fine holes of the bubble generator 3-3, the liquid becomes a high-pressure bubble fluid, the high-pressure bubble fluid sequentially passes through the first-stage expansion turbine 3-4 and the multi-stage expansion turbine 3-5 to do work and then flows back into the air-liquid separator 3-12. The bubbles in the fluid do work and absorb heat in the expansion process of each stage, and absorb heat from the liquid in the inter-stage flow process. The expansion turbine drives the pump wheel 3-1 and the generator 3-8 to generate electricity through the rotating shaft 3-7, and then enters the air-liquid separator 3-12 to separate and discharge the air. The descending liquid 3-11 in the descending pipe 3-10 after separation will flow back to the ascending pipe 3-9 through the bottom pipe under the driving of the pump wheel 3-1. Since the pump wheel 3-1 is provided for pressurization, the device is applicable to a compressed air source with medium-high pressure. In the embodiment, the pump wheel 3-1 turbo-expansion refrigerating machine can also use a positive displacement pump to replace the pump wheel 3-1, and can also use a positive displacement expander to replace the turbine.

[0080] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments. Even if various changes are made to the present application, as long as the changes fall within the scope of the claims of the present application and equivalent technologies thereof, they still fall within the protection scope of the present application.

Claims

1. A wind energy refrigeration energy storage device, characterized in that, The application relates to a wind-driven air compression device, which comprises the following components: a wind-driven air compression device for compressing and outputting air under the driving of wind power; a compressed air pipeline, the input end of which is connected with the output end of the wind-driven air compression device, and the compressed air pipeline is provided with a gas storage device for temporarily storing compressed air; a gas lift circulating expansion refrigeration device, the gas input end of which is connected with the output end of the compressed air pipeline, the compressed air entering the gas lift circulating expansion refrigeration device is expanded and absorbs heat in circulating refrigeration medium to form the circulating refrigeration medium after cooling; the refrigeration medium output end and the refrigeration medium input end of the gas lift circulating expansion refrigeration device are respectively connected with an external building cooling end or are respectively connected with a cold storage device for storing the circulating refrigeration medium after cooling; the gas lift circulating expansion refrigeration device comprises a bottom pipe, a gas lift circulating ascending pipe, a top pipe and a gas lift circulating descending pipe which are sequentially connected to form a circulating pipeline; the lower end of the gas lift circulating ascending pipe is provided with a bubble generator, and the output end of the compressed air pipeline extends into the circulating pipeline and is connected with the input end of the bubble generator; a gas-liquid separator is arranged at the connection position of the top pipe and the gas lift circulating descending pipe for separating and discharging the expanded air; the gas lift circulating descending pipe is connected with the bottom pipe, and the refrigeration medium input end and the refrigeration medium output end are arranged at the connection position.

2. The wind energy refrigeration energy storage device of claim 1, wherein, a water turbine impeller, a transmission device and a generator are further arranged; the water turbine impeller is arranged in the gas lift circulating descending pipe; the power input end of the transmission device extends into the circulating pipeline and is connected with the water turbine impeller, and the power output end of the transmission device is connected with the generator for driving the generator to generate electricity.

3. The wind energy refrigeration energy storage device of claim 2, wherein, the transmission device comprises a power input shaft, a first belt wheel, a transmission belt and a second belt wheel; the first end of the power input end extends into the circulating pipeline and is connected with the water turbine impeller, and the second end of the power input shaft is provided with the first belt wheel; the second belt wheel is arranged on the input shaft of the generator; the transmission belt is connected with the first belt wheel and the second belt wheel respectively.

4. The wind energy refrigeration energy storage device of claim 1, wherein, the circulating refrigeration medium is water, and the cold storage device comprises an ice slurry storage pool and a stirrer; the input end and the output end of the ice slurry storage pool are connected with the refrigeration medium output end and the refrigeration medium input end of the gas lift circulating expansion refrigeration device respectively; the stirring end of the stirrer is arranged in the ice slurry storage pool.

5. The wind energy refrigeration energy storage device of claim 1, wherein, the gas storage device is a compressed air storage tank, an underground salt cave or an abandoned mine.

6. The wind energy refrigeration energy storage device of claim 1, wherein, the wind-driven air compression device comprises a wind-driven impeller, a speed changing device and an air compressor; the power output end of the wind-driven impeller is connected with the input end of the speed changing device; the output end of the speed changing device is connected with the power input end of the air compressor, and the output end of the air compressor is connected with the input end of the compressed air pipeline.

7. The wind energy refrigeration energy storage device of claim 1, wherein, the wind-driven air compression device comprises a wind-driven power generation device and an air compressor; the electric energy output end of the wind-driven power generation device is connected with the electric energy input end of the air compressor, and the output end of the air compressor is connected with the input end of the compressed air pipeline.

Images