Air compression system for brewery

Abstract

The utility model discloses a brewery air compression system which comprises an air supply air path and an air using end communicated with the air supply air path, an air compressor used for supplying air to the air using end is arranged on the air supply air path, and the air using end comprises a filling workshop air path, a power workshop air path, a fermentation and filtration workshop air path and a saccharification workshop air path which are connected in series; the filling workshop gas path, the power workshop gas path, the fermentation filtering workshop gas path and the saccharification workshop gas path are each provided with a balance gas storage tank, and the balance gas storage tanks can store gas so as to provide compressed air when the gas pressure of each gas path is lower than a preset value range; a pressure boosting device is arranged on the filling workshop air path, and when the pressure of compressed air of equipment on the filling workshop air path is lower than a set value, the pressure boosting device can conduct pressurization automatically. The air supply pressure of an air compression system of a brewery can be effectively reduced, the energy consumption of an air compressor is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas supply systems, and particularly relates to an air compressor system in a brewery. Background Art

[0002] At present, the micro-oil air compressor system in small breweries is mainly used for blowing air in the dust removal system, discharging grains, and supplying air to pneumatic actuators in the factory area. Among them, the highest air pressure is used by the high-pressure clutch cylinder of the can capping machine (the air pressure is about 6 bar), and the lowest air pressure is used for discharging grains (the air pressure is about 3.5 - 4.5 bar), and the air pressure for other pneumatic actuators is 5 bar. The membrane filtration system and the filling machine need to use compressed air to purge the CIP during CIP. At this time, the air consumption suddenly increases, resulting in a decrease in the pressure in the high-pressure clutch cylinder of the capping machine, and the clutch is released and an alarm is given. Due to the limited buffering capacity of the air compressor pipe network and the sudden change in air consumption at each air usage point, in order to ensure the normal operation of the equipment, the exhaust or supply pressure of the air compressor station is set at 6.8 - 7 bar. The supply pressure in this range is relatively high to improve the buffering capacity of the air compressor pipe network. When the air consumption of the membrane filtration system and the filling machine suddenly increases, the compressed air pressure in the high-pressure clutch cylinder of the capping machine will not decrease too much to cause equipment failure. However, the higher the exhaust slope supply pressure of the air compressor runs, the greater the power consumption of the air compressor. Setting too high a supply pressure of the air compressor will increase the energy consumption of the air compressor. In addition, there is also a commonly used air compressor system that uses air compressors with different exhaust pressures to supply different air usage points, which is equivalent to two or more sets of systems. In this way, the exhaust pressure of the air compressor can be closer to the air usage pressure, reducing power consumption, but the upfront investment costs for two or more sets of pipe networks and air compressor equipment are high.

[0003] Therefore, a new technology is needed to solve the problems of high energy consumption and high cost in the gas supply system in the existing brewery area. Summary of the Invention

[0004] To solve the above problems in the prior art, the present invention provides an air compressor system for a brewery, which has the effect of reducing energy consumption and cost.

[0005] The present invention adopts the following technical solutions:

[0006] An air compressor system for a brewery includes a gas supply air path and an air usage end communicated with the gas supply air path. An air compressor for supplying air to the air usage end is provided on the gas supply air path. The air usage end includes a filling workshop air path, a power workshop air path, a fermentation and filtration workshop air path, and a saccharification workshop air path connected in series;

[0007] Balanced gas storage tanks are provided on the filling workshop air path, the power workshop air path, the fermentation and filtration workshop air path, and the saccharification workshop air path. The balanced gas storage tanks can store gas to provide compressed air when the air pressure in each air path is lower than the preset value range.

[0008] A boosting device is provided on the air pipeline of the filling workshop. When the compressed air pressure of the equipment on the air pipeline of the filling workshop is lower than the set value, the boosting device can automatically pressurize.

[0009] As a further improvement of the technical solution of the present invention, it further includes a transition pipeline. The two ends of the transition pipeline are respectively connected to the air supply pipeline and the gas using end, and a cold dryer is installed on the transition pipeline.

[0010] As a further improvement of the technical solution of the present invention, it further includes a dry gas storage tank installed on the transition pipeline. The dry gas storage tank is used to store dry air, and the dry gas storage tank is installed between the cold dryer and the gas using end.

[0011] As a further improvement of the technical solution of the present invention, it further includes a distribution cylinder. The distribution cylinder is installed on the transition pipeline and is located between the dry gas storage tank and the gas using end. The distribution cylinder is used to distribute and transport the air in the dry gas storage tank into each air pipeline of the gas using end.

[0012] As a further improvement of the technical solution of the present invention, each balance gas storage tank on the air pipeline of the power workshop, the fermentation and filtration workshop, and the saccharification workshop is located at one end of each air pipeline far from the distribution cylinder.

[0013] As a further improvement of the technical solution of the present invention, a wet gas tank is further provided on the air supply pipeline. The wet gas tank is arranged between the air compressor and the cold dryer.

[0014] As a further improvement of the technical solution of the present invention, it further includes an out-of-tank air pipeline. The out-of-tank air pipeline is connected in parallel with the transition pipeline, and the out-of-tank air pipeline is connected to the out-of-tank gas using end.

[0015] As a further improvement of the technical solution of the present invention, the air pipeline of the filling workshop is connected to the intake end of the capping machine, and the boosting device is installed near the capping machine and is connected to the intake end of the capping machine.

[0016] As a further improvement of the technical solution of the present invention, the air pipeline of the filling workshop is provided with a filling machine branch and a capping machine branch connected in parallel. The outlet end of the filling machine branch is connected to the filling machine, the outlet end of the capping machine branch is connected to the capping machine, and the boosting device is installed on the capping machine branch;

[0017] One of the balance gas storage tanks is installed on the air pipeline of the filling workshop, and the outlet end is respectively connected to the intake ends of the filling machine branch and the capping machine branch.

[0018] As a further improvement of the technical solution of the present invention, the boosting device includes a controller, a pressure pump, a one-way valve, a pressure sensor, and a first valve;

[0019] It further includes a booster branch. Both ends of the booster branch are communicated with the capping machine branch and are respectively the first end and the second end. The pressure pump is installed on the booster branch and is located between the first end and the second end. The first valve is installed on the capping machine branch. The second end and the first end are respectively located on both sides of the first valve. The first end is located between the first valve and the capping machine. The check valve is installed on the booster branch and is located between the second end and the pressure pump. The check valve allows air to flow in the direction from the first end to the second end;

[0020] The pressure sensor is used to sense the air pressure at the air inlet end of the capping machine and is electrically connected to the input end of the controller. The output end of the controller is electrically connected to the pressure pump. The controller is used to control the start and stop of the pressure pump.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] For the air compressor system of the brewery in this solution, one air compressor can be used to supply air to all the micro-oil air-using points of a small brewery, which can reduce costs. This is mainly achieved by installing balance gas storage tanks on each air path at the gas-using end of the air compressor system pipeline to improve the air buffering capacity of the air compressor system and reduce the impact of sudden changes in gas consumption on the pressure in the pipeline of the system. At the same time, a booster device is installed at the high-pressure usage points, such as on the air path in the filling workshop. This booster device can detect the compressed air pressure of the equipment at the high-pressure usage points. When the compressed air pressure of the equipment is lower than the set value, it will automatically pressurize to ensure the compressed air pressure of the high-pressure clutch cylinder of the equipment and ensure the normal use of high-pressure equipment. The exhaust pressure of the air compressor is reduced from the original 6.5 - 7 bar to 5.3 bar. The entire system can effectively reduce the air supply pressure of the micro-oil air compressor system of a small brewery, reduce the energy consumption of the air compressor, and has an energy-saving effect, which is of great significance for energy conservation and consumption reduction in small breweries. Description of the Drawings

[0023] The following further describes the technology of the present invention in detail with reference to the drawings and specific embodiments:

[0024] Figure 1 is a schematic diagram of the air compressor system pipeline of the present invention;

[0025] Figure 2 is Figure 1 an enlarged view of the structure of part A in

[0026] Reference Signs:

[0027] 1 - air supply path; 11 - air compressor; 12 - moisture tank;

[0028] 2 - Transition gas path; 21 - Refrigerated dryer; 22 - Dry gas storage tank; 23 - Manifold

[0029] 3 - Filling workshop gas path; 31 - Tank unloading machine; 32 - Membrane filtration equipment; 33 - Filling machine; 34 - Capping machine; 35 - CIP cleaning area; 36 - Sterilizer; 37 - Carton packing machine; 38 - Palletizer

[0030] 4 - Power workshop gas path; 41 - Power workshop equipment

[0031] 5 - Fermentation and filtration workshop gas path; 51 - Fermentation equipment; 52 - Filtration production line equipment; 53 - CIP cleaning equipment

[0032] 6 - Saccharification workshop gas path; 61 - Saccharification production line equipment; 62 - Crushing production line equipment

[0033] 7 - Out - trough gas path; 71 - Out - trough gas - using end

[0034] 8 - Balance gas storage tank

[0035] 9 - Boosting device; 91 - Controller; 92 - Pressurizing pump; 93 - Check valve; 94 - Pressure sensor; 95 - First valve; 96 - Second valve; 97 - Third valve Detailed implementation mode

[0036] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with embodiments and drawings, so as to fully understand the purpose, solution and effects of the present invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The same reference numerals used in the drawings indicate the same or similar parts everywhere.

[0037] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, etc. descriptions used in the present invention are only relative to the mutual positional relationship of the components of the present invention in the drawings.

[0038] Refer to Figures 1 to 2, a brewery air compressor system, including a gas supply line 1 and a gas-using end connected to the gas supply line 1. An air compressor 11 for supplying gas to the gas-using end is provided on the gas supply line 1. The air compressor 11 can be a micro-oil permanent magnet variable frequency air compressor 11. The micro-oil permanent magnet variable frequency air compressor 11 mainly provides compressed air for the entire air compressor system. The permanent magnet variable frequency air compressor 11 has a pressure regulation ratio of 30%-100%, and the supply pressure can be adjusted according to the changes in the gas-using workshop. The gas-using end includes a filling workshop gas line 3, a power workshop gas line 4, a fermentation and filtration workshop gas line 5, and a saccharification workshop gas line 6 connected in series. Balance gas storage tanks 8 are provided on the filling workshop gas line 3, the power workshop gas line 4, the fermentation and filtration workshop gas line 5, and the saccharification workshop gas line 6. The balance gas storage tanks 8 can store gas to provide compressed air when the air pressure in each gas line is below the preset value range. The balance gas storage tanks 8 are installed at the end of the air compressor system pipeline in the gas-using workshop or near the equipment where the gas consumption suddenly changes, and can provide compressed air to the pipeline when the gas consumption suddenly increases, improving the buffering capacity of the system and reducing the impact of sudden changes in gas consumption on the pressure in the pipeline. A pressure boosting device 9 is provided on the filling workshop gas line 3. When the compressed air pressure of the equipment on the filling workshop gas line 3 is lower than the set value, the pressure boosting device 9 can automatically pressurize.

[0039] For the brewery air compressor system of this solution, one air compressor 11 can be used to supply gas to all the micro-oil gas-using points of a small brewery, which can reduce costs. This is mainly achieved by installing balance gas storage tanks 8 on each gas line at the gas-using end of the air compressor system pipeline, improving the ability of the air compressor system to buffer air, and reducing the impact of sudden changes in gas consumption on the pressure in the pipeline of the system. At the same time, a pressure boosting device 9 is installed at the high-pressure use point, such as on the filling workshop gas line 3. This pressure boosting device 9 can detect the compressed air pressure of the equipment at the high-pressure use point. When the compressed air pressure of the equipment is lower than the set value, it will automatically pressurize to ensure the compressed air pressure of the high-pressure clutch cylinder of the equipment and ensure the normal use of the high-pressure equipment. The exhaust pressure of the air compressor 11 is reduced from the original 6.5 - 7 bar to 5.3 bar. The entire system can effectively reduce the gas supply pressure of the micro-oil air compressor system of a small brewery, reduce the energy consumption of the air compressor 11, and has an energy-saving effect, which is of great significance for energy conservation and consumption reduction in small breweries.

[0040] Specifically, the brewery air compressor system of this solution further includes a transition pipeline. The two ends of the transition pipeline are respectively connected to the gas supply line 1 and the gas-using end. A cold dryer 21 is installed on the transition pipeline. A dry gas storage tank 22 is also installed on the transition pipeline. The dry gas storage tank 22 is used to store dry air, and the dry gas storage tank 22 is installed between the cold dryer 21 and the gas-using end. The purification treatment device includes a primary filter, a cold dryer 21, and a secondary filter. Its main function is to purify the compressed air, further remove moisture and oil and gas in the compressed air, and the further purified compressed air enters the dry gas storage tank 22.

[0041] Specifically, the air compressor system of the brewery in this solution further includes a manifold 23, which is installed on the transition pipeline and is located between the dry gas storage tank 22 and the gas-using end. The manifold 23 is used to distribute and transport the air in the dry gas storage tank 22 into the respective gas paths at the gas-using end. The function of the manifold 23 is to distribute the compressed air into the pipelines of the respective gas paths, and the function of the pipelines is to transport the compressed air to each gas-using device.

[0042] Specifically, each balance gas storage tank 8 on the power workshop gas path 4, the fermentation and filtration workshop gas path 5, and the saccharification workshop gas path 6 is located at one end of each gas path far from the manifold 23.

[0043] Specifically, a wet gas tank 12 is further provided on the air supply gas path 1. The wet gas tank 12 is in the air compressor station. The main functions of the wet gas tank 12 are to preliminarily separate the moisture in the compressed air and store the compressed air. The wet gas tank 12 is arranged between the air compressor 11 and the cold dryer 21. Among them, the air compressor station is used to install the air compressor 11 for convenient air supply.

[0044] Specifically, the air compressor system of the brewery in this solution further includes an out-of-tank gas path 7, which is connected in parallel with the transition pipeline, and the out-of-tank gas path 7 is communicated with an out-of-tank gas-using end 71.

[0045] Specifically, the filling workshop gas path 3 is communicated with the intake end of the capping machine 34, and the boosting device 9 is installed close to the capping machine 34 and is communicated with the intake end of the capping machine 34.

[0046] Specifically, the filling workshop gas path 3 is provided with a parallel bottling machine 33 branch and a capping machine 34 branch. The outlet end of the bottling machine 33 branch is communicated with the bottling machine 33, the outlet end of the capping machine 34 branch is communicated with the capping machine 34, and the boosting device 9 is installed on the capping machine 34 branch. A balance gas storage tank 8 is installed on the filling workshop gas path 3 and the outlet end is respectively communicated with the intake ends of the bottling machine 33 branch and the capping machine 34 branch.

[0047] Specifically, the boosting device 9 includes a controller 91, a pressure pump 92, a check valve 93, a pressure sensor 94, a first valve 95, a second valve 96, and a third valve 97. The first valve 95, the second valve 96, and the third valve 97 are all pneumatic valves. The pressure sensor 94 can preferably be a pressure detection probe, and the pressure pump 92 can preferably be a pneumatic pressure pump 92. The air pressure system of the brewery in this solution further includes a boosting branch. Both ends of the boosting branch are connected to the capping machine 34 branch and are respectively the first end and the second end. The pressure pump 92 is installed on the boosting branch and is located between the first end and the second end. The first valve 95 is installed on the capping machine 34 branch. The second end and the first end are respectively located on both sides of the first valve 95. The first end is located between the first valve 95 and the capping machine 34. The check valve 93 is installed on the boosting branch and is located between the second end and the pressure pump 92. The check valve 93 allows air to flow from the first end to the second end. The pressure sensor 94 is used to sense the air pressure at the air inlet end of the capping machine 34 and is electrically connected to the input end of the controller 91. The output end of the controller 91 is electrically connected to the pressure pump 92. The controller 91 is used to control the start and stop of the pressure pump 92. The second valve 96 is installed on the boosting branch and is located between the first end and the pressure pump 92. The third valve 97 is installed on the boosting branch and is located between the second end and the check valve 93. When the pressure pump 92 starts, the first valve 95 closes, and the second valve 96 and the third valve 97 open. When the pressure pump 92 stops, the first valve 95 opens, and the second valve 96 and the third valve 97 close.

[0048] The boosting device 9 in this solution is mainly composed of a pneumatic pressure pump 92, a check valve 93, several pneumatic valves, a pressure detection probe, and a controller 91. Its main function is to detect the compressed air pressure at the equipment usage end. When the pressure is lower than the set value, the controller 91 controls the pressure pump 92 to pressurize the low-pressure gas and send it to the capping machine 34. And the check valve 93 can prevent the high-pressure gas from flowing back to the low-pressure end. When the pressure reaches the set value, the pressurization automatically stops to ensure the high-pressure gas demand of the capping machine 34. The balance gas storage tank 8 in the filling workshop can be installed on the filling workshop gas path 3 and is set close to the filling machine 33 branch. The air outlet end of the balance gas storage tank 8 can be connected to the air inlet end of the filling machine 33 branch.

[0049] The air circuit 3 of the filling workshop in this solution can be used to supply compressed air to each device in the filling workshop, such as the can unloading machine 31, membrane filtration equipment 32, filling machine 33, capping machine 34, CIP cleaning area 35, sterilizer 36, carton packaging machine 37, and palletizer 38. The air circuit 4 of the power workshop can be used to supply compressed air to the power workshop equipment 41, such as the air consumption points of the power workshop equipment 41. The air circuit 5 of the fermentation and filtration workshop can be used to supply compressed air to each device in the filling workshop, such as the fermentation equipment 51, filtration production line equipment 52, and CIP cleaning equipment 53. The air circuit 6 of the saccharification workshop can be used to supply compressed air to each device in the saccharification workshop, such as the saccharification production line equipment 61 and crushing production line equipment 62. Among them, the air outlet end 71 for discharging the tank can be set in the saccharification workshop.

[0050] In the air compressor system of the brewery in this solution, mainly by adding a balance gas storage tank 8 at the end of each air circuit at the air consumption end of the air compressor system pipeline or near the equipment where the air consumption has a sudden change, the air buffering capacity of the air compressor system is improved, and the impact of sudden changes in air consumption on the pressure in the pipeline of the system is reduced; at the same time, a boosting device 9 is installed at the high-pressure usage point, such as at the capping machine 34. This boosting device 9 can detect the compressed air pressure of the capping machine 34. When the compressed air pressure of the capping machine 34 is lower than the set value, it will automatically pressurize to ensure the compressed air pressure of the high-pressure clutch cylinder of the capping machine 34 and ensure the normal use of high-pressure equipment.

[0051] When the air compressor system of the brewery in this solution is in operation, the micro-oil permanent magnet variable frequency air compressor 11 supplies air to the micro-oil gas-using equipment in the entire brewery, including the saccharification workshop, fermentation and filtration workshop, power workshop, and filling workshop. After being compressed by the micro-oil permanent magnet variable frequency air compressor 11, the air becomes micro-oil compressed air at 5.3 bar. The compressed air first enters the wet gas storage tank for preliminary separation of moisture and oil in the compressed air. Among them, the wet gas tank 12 is the wet gas storage tank; the outlet end of the wet gas storage tank is connected to a pipeline and enters the wheat bran blowing place at the gas-using end 71 of the tank for the power of discharging wheat bran. The compressed air used this time does not need to be purified, which can save electricity for purification treatment. The other compressed air output from the outlet end of the wet gas storage tank enters the purification treatment device, such as the cold dryer 21 and filter, to further remove moisture and oil from the compressed air. The purified compressed air enters the dry gas storage tank 22 and then is transported to the distribution cylinder 23, and is respectively transported to each gas-using workshop through the connection of the distribution cylinder 23 and valves, etc. In the filling workshop, a balance gas storage tank 8 is installed in front of the filling machine 33 with a suddenly increased gas consumption, such as the can filling line, to increase the buffer capacity of the compressed air here; a balance gas storage tank 8 is added to the end of the air compressor pipe network in the power workshop, fermentation and filtration workshop, and saccharification workshop. When the gas consumption in these workshops suddenly increases and the compressed air in the dry gas storage tank 22 in the air compressor station cannot be quickly replenished, the balance gas storage tank 8 at the end of the pipe network can quickly replenish the consumed compressed air to ensure the pipe network pressure. A pressure boosting device 9 is added in front of the inlet of the capping machine 34 on the can filling line. When the pressure boosting device 9 detects that the compressed air pressure at the capping machine 34 is lower than the set value, it will automatically pressurize to ensure the gas pressure for the capping machine 34.

[0052] This solution is applicable to small breweries, which can meet the needs of equipment at gas-using points with different gas pressures supplied by one air compressor 11. The exhaust pressure of the air compressor 11 is reduced from the original 6.5 - 7 bar to 5.3 bar, effectively reducing the gas supply pressure and thus reducing energy consumption. Compared with the traditional gas supply equipment that requires two sets of micro-oil air compressor systems to meet the gas supply pressure requirements of the system, only one air compressor 11 is needed in this solution to meet the requirements, effectively reducing the upfront equipment investment cost and being able to reduce costs.

[0053] For other contents of the air compressor system of the brewery described in the present invention, reference can be made to the prior art and will not be elaborated here.

[0054] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Therefore, any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A brewery air compression system, characterized by: It includes an air supply circuit and an air user end connected to the air supply circuit, wherein the air supply circuit is provided with an air compressor for supplying air to the air user end, and the air user end includes an air circuit of a filling workshop, an air circuit of a power workshop, an air circuit of a fermentation and filtration workshop, and an air circuit of a saccharification workshop connected in series with each other; The filling workshop gas circuit, the power workshop gas circuit, the fermentation and filtration workshop gas circuit, and the saccharification workshop gas circuit are all provided with a balancing gas storage tank, and the balancing gas storage tank can store gas to provide compressed air when the gas pressure of each gas circuit is lower than a preset value range; A booster device is provided on the gas circuit of the filling workshop. When the compressed air pressure of the equipment on the gas circuit of the filling workshop is lower than a set value, the booster device can automatically increase the pressure.

2. The brewery air compression system according to claim 1, characterized in that: It also includes a transition pipeline, the two ends of which are respectively connected to the air supply pipeline and the air use end, and a cold dryer is installed on the transition pipeline.

3. The brewery air compression system according to claim 2, characterized in that: It also includes a dry gas storage tank installed on the transition pipeline, the dry gas storage tank is used to store dry air, and the dry gas storage tank is installed between the cold dryer and the gas using end.

4. The brewery air compression system according to claim 3 is characterized in that: It also includes a gas distribution cylinder, which is installed on the transition pipeline and is located between the dry gas storage tank and the gas-using end. The gas distribution cylinder is used to distribute and transport the air in the dry gas storage tank to each gas path of the gas-using end.

5. The brewery air compression system according to claim 4, characterized in that: Each balance gas storage tank on the gas circuit of the power workshop, the gas circuit of the fermentation and filtration workshop, and the gas circuit of the saccharification workshop is located at one end of each gas circuit far away from the gas sub-cylinder.

6. The brewery air compression system according to claim 2, characterized in that: The air supply line is also provided with a moisture tank, and the moisture tank is arranged between the air compressor and the cold dryer.

7. The brewery air compression system according to claim 2, characterized in that: It also includes a slot outlet gas path, which is connected in parallel with the transition pipeline and communicated with the slot outlet gas end.

8. The brewery air compression system according to claim 1, characterized in that: The gas circuit of the filling workshop is communicated with the air inlet end of the capping machine, and the booster device is installed close to the capping machine and communicated with the air inlet end of the capping machine.

9. The brewery air compression system according to claim 8, characterized in that: The filling workshop gas circuit is provided with a filling machine branch and a capping machine branch connected in parallel, the gas outlet end of the filling machine branch is connected to the filling machine, the gas outlet end of the capping machine branch is connected to the capping machine, and the booster device is installed on the capping machine branch; The balancing gas storage tank is installed on the gas path of the filling workshop, and the gas outlet end is respectively connected with the gas inlet end of the filling machine branch and the capping machine branch.

10. The brewery air compression system according to claim 9, characterized in that: The boosting device includes a controller, a boosting pump, a one-way valve, a pressure sensor and a first valve; It also includes a boosting branch, both ends of which are connected to the capping machine branch and are respectively a first end and a second end, the boosting pump is installed on the boosting branch and is located between the first end and the second end, the first valve is installed on the capping machine branch, the second end and the first end are respectively located on both sides of the first valve, the first end is located between the first valve and the capping machine, the one-way valve is installed on the boosting branch and is located between the second end and the boosting pump, and the one-way valve allows air to flow from the first end to the second end; The pressure sensor is used to sense the air pressure at the air inlet end of the capping machine and is electrically connected to the input end of the controller. The output end of the controller is electrically connected to the pressure pump. The controller is used to control the start and stop of the pressure pump.

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