Pneumatic pressurization automatic control system

Abstract

The utility model provides a pneumatic pressurization automatic control system which at least comprises a control system, a pressurization system, a driving system and a gas cylinder, and the control system is respectively in communication connection with the driving system and the pressurization system; the pressurization system is provided with a medium inlet, a gas pressurization pump and a high-pressure medium outlet which are communicated with one another; the driving system is connected with the gas booster pump, and the gas cylinder is connected with the high-pressure medium outlet; a medium enters the gas booster pump through the medium inlet, the control system controls the driving system to regulate and control the gas booster pump so as to pressurize the medium, and the pressurized medium is filled into the gas cylinder through the high-pressure medium outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of boost control, in particular to a pneumatic boost automatic control system. Background Art

[0002] The boost control system is usually used to boost the media with an initial pressure value to the target pressure. Existing boost control systems are mostly manually operated, requiring operators to observe the pressure gauge value and manually operate each valve. In addition, during the test interval, when the gas tank pressure is low, the gas production cannot be started remotely.

[0003] During the inflation process, the control gas pressure has a great influence on the inflation speed. When the control gas pressure is too high and the inflation is too fast, the gas cylinder is prone to heat up. When the gas source pressure is low and the inflation speed is slow, as the output pressure gradually increases, the inflation speed also becomes slower and slower. The existing boost control system requires manual adjustment of the pressure regulating valve to control the inflation speed, and cannot achieve intelligent adjustment.

[0004] Therefore, in order to solve the technical problems of the existing boosting system, such as the difficulty in adjusting the control gas pressure, the low degree of system automation, and the inability to remotely monitor, it is urgent to provide a pneumatic boosting automatic control system. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a pneumatic pressurization automatic control system, which can remotely and intelligently control the filling of gas cylinders, so that the entire medium pressurization process can be automatically controlled.

[0006] The utility model provides a pneumatic booster automatic control system, which at least comprises a control system, a booster system, a drive system and a gas cylinder, wherein the control system is respectively connected to the drive system and the booster system in communication; the booster system is provided with a medium inlet, a gas booster pump and a high-pressure medium outlet which are connected to each other; the drive system is connected to the gas booster pump, and the gas cylinder is connected to the high-pressure medium outlet; the medium enters the gas booster pump through the medium inlet, the drive system is controlled by the control system to regulate the gas booster pump to boost the medium, and the pressurized medium is filled into the gas cylinder through the high-pressure medium outlet.

[0007] In one embodiment, the gas cylinder end is provided with a temperature sensor which is in communication with the control system; the temperature sensor is used to measure the temperature of the gas cylinder, and when the temperature is greater than a certain upper limit, the control system controls the drive system to reduce the boosting rate of the gas booster pump.

[0008] In one embodiment, the gas booster pump includes a first high-pressure chamber, a first drive chamber, a second drive chamber, and a second high-pressure chamber separated by a piston assembly; the outlets of the first high-pressure chamber and the second high-pressure chamber are connected to the high-pressure medium outlet and then connected to the gas cylinder through a high-pressure outlet solenoid valve; under the action of the drive system, a pressure difference is generated between the first drive chamber and the second drive chamber, driving the piston assembly to move to the side with lower pressure, thereby pressurizing the medium in the corresponding high-pressure chamber.

[0009] In one embodiment, the drive system at least includes a first solenoid valve, an electric proportional valve and a two-position five-way reversing valve which are sequentially connected; the inlet of the first solenoid valve serves as a control air inlet, the first outlet of the two-position five-way reversing valve is connected to the first drive chamber, and the second outlet of the two-position five-way reversing valve is connected to the second drive chamber;

[0010] The control system controls the two-position five-way reversing valve to automatically switch the outlet, so that the control gas alternately enters the first driving chamber and the second driving chamber, thereby realizing the continuous pressurization operation of the gas booster pump.

[0011] In one embodiment, a magnetic induction switch is provided in each of the first driving cavity and the second driving cavity; the magnetic induction switch is communicatively connected with the control system for identifying the piston assembly in-position signal and transmitting it to the control system.

[0012] In one embodiment, a pressure reducing valve and a filter are sequentially arranged between the first solenoid valve and the electrical proportional valve; a first pressure sensor is arranged at the outlet of the electrical proportional valve, and a throttle valve is arranged at the inlet of the two-position five-way reversing valve.

[0013] In any of the above embodiments, the boosting system also includes a second solenoid valve arranged upstream of the gas boosting pump; the inlet of the second solenoid valve is connected to the medium inlet, and the outlet of the second solenoid valve is divided into a first branch and a second branch, the first branch is connected to the first high-pressure chamber inlet through a first one-way valve, and the second branch is connected to the second high-pressure chamber inlet through a second one-way valve; the first high-pressure chamber outlet is connected to the high-pressure outlet solenoid valve inlet through a third one-way valve, and the second high-pressure chamber outlet is connected to the high-pressure outlet solenoid valve inlet through a fourth one-way valve.

[0014] In one embodiment, a second pressure sensor is provided at the outlet of the second solenoid valve for measuring the medium pressure at the inlet side of the gas booster pump; a third pressure sensor is provided at the inlet of the high-pressure outlet solenoid valve for measuring the medium pressure after being pressurized by the gas booster pump.

[0015] In one embodiment, the inlet of the high-pressure outlet solenoid valve is provided with a unloading pipeline whose on / off is controlled by an unloading solenoid valve; and the excess pressurized medium can be discharged by opening the unloading solenoid valve.

[0016] In one embodiment, the control system includes at least a touch screen, a PLC and a solid-state relay; the touch screen is set at multiple locations in the factory and is connected to the PLC via Ethernet; the PLC is communicated with the first solenoid valve, the second solenoid valve, the two-position five-way reversing valve, the high-pressure outlet solenoid valve and the unloading solenoid valve through the fixed relay; the PLC is also communicated with the first pressure sensor, the second pressure sensor, the third pressure sensor, the temperature sensor and the magnetic induction switch.

[0017] The pneumatic boosting automatic control system provided by the utility model has a wide range of pressure for boosting and stabilizing pressure, and the inflation speed is adjustable. The automatic control system can judge the downward trend of the inflation speed through the collected pressure and temperature data, and automatically adjust and control the inflation pressure and the switch state of the corresponding valve, thus realizing the automation of the boosting process, greatly shortening the time and saving labor costs.

[0018] The pneumatic booster automatic control system provided by the utility model adopts remote start, so that the operator can be away from the gas production site and does not need manual adjustment, which not only improves the test efficiency but also reduces the operation risk.

[0019] Those skilled in the art will recognize additional features and advantages upon reading the detailed description and upon viewing the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an overall structural block diagram of the pneumatic boosting automatic control system of the embodiment of the utility model.

[0022] Figure 2 It is a gas circuit principle diagram of a pneumatic boosting automatic control system according to an embodiment of the utility model.

[0023] Figure 3 It is a partial gas circuit diagram of the pneumatic booster automatic control system of the embodiment of the utility model.

[0024] Figure 4It is a schematic diagram of the electrical principle of the pneumatic boosting automatic control system of the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the sizes of some structural components or areas in the drawings may be enlarged for other structural components or areas to help understand the embodiments of the present invention.

[0026] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the utility model. In the description of the utility model, it should be noted that, unless otherwise specified, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In addition, the terms "include", "comprise", "have" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component including a series of elements includes not only those elements, but also other mechanical elements that are not explicitly listed or inherent in the structure or component. In the absence of more restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0028] Spatially related terms such as "below", "beneath", "under", "low", "above", "on", "high", etc. are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device in addition to orientations different from those shown in the figures. In addition, for example, "one element is above / below another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, parts, etc., and should not be regarded as limiting. Similar terms represent similar elements throughout the description.

[0029] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0030] See also Figure 1 and Figure 2 The utility model provides a pneumatic boosting automatic control system, which at least includes a control system 1, a boosting system 2, a drive system 3 and a gas cylinder 4. The control system 1 is respectively connected to the drive system 3 and the boosting system 2. The boosting system 2 is provided with a medium inlet A, a gas boosting pump 21 and a high-pressure medium outlet B which are connected to each other. The drive system 3 is connected to the gas boosting pump 21, and the gas cylinder 4 is connected to the high-pressure medium outlet B. The medium enters the gas boosting pump 21 through the medium inlet A, and the control system 1 controls the drive system 3 to regulate the gas boosting pump 21 to boost the medium. The boosted medium is filled into the gas cylinder 4 through the high-pressure medium outlet B.

[0031] The pneumatic boosting automatic control system of the embodiment of the utility model can utilize the control system to remotely control the driving system to at least control the action of the gas boosting pump in the boosting system, so as to realize uninterrupted pressurization of the medium through the gas boosting pump and filling it into the gas cylinder.

[0032] In the above embodiment, the control system can also adjust the action of the drive system in reverse after collecting data from the boosting system. For example, a temperature sensor 41 is provided next to the gas cylinder 4 and is connected to the control system 1 for measuring the temperature of the gas cylinder 4 and transmitting it to the control system 1. The control system 1 collects and compares the measured temperature of the temperature sensor 41 in real time. When the temperature of the temperature sensor 41 is greater than a certain upper limit, the control system 1 controls the drive system 3 to reduce the boosting rate of the gas booster pump 21, thereby reducing the temperature of the gas cylinder 4 and ensuring the safety and effectiveness of the gas cylinder 4 inflation process.

[0033] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the gas booster pump 21 includes a first high-pressure chamber G1, a first drive chamber Q1, a second drive chamber Q2, and a second high-pressure chamber G2 separated by a piston assembly 211. The outlets of the first high-pressure chamber G1 and the second high-pressure chamber G2 are connected to the high-pressure medium outlet B and then connected to the gas cylinder 4 through the high-pressure outlet solenoid valve 22. Under the action of the drive system 3, the control gas is sequentially filled into the first drive chamber Q1 and the second drive chamber Q2, so that a pressure difference is generated between the first drive chamber Q1 and the second drive chamber Q2, and the piston assembly 211 is driven to move to the side with lower pressure, thereby achieving pressurization of the medium in the corresponding high-pressure chamber.

[0034] The gas booster pump 21 in the embodiment of the utility model is an automatic reciprocating pump using compressed air as a power source, and a pressure ratio is generated by the area ratio of the driving chamber and the high-pressure chamber piston. That is, by utilizing the low-pressure gas in the driving chamber to drive the large-area piston, the medium at the small-area piston end (in the high-pressure chamber) is pressurized to form a high-pressure fluid. The present application controls the driving system through a control system to achieve control gas alternately entering the front and rear chambers of the driving chamber, that is, the first driving chamber and the second driving chamber, so that the continuous operation of the gas booster pump can be achieved.

[0035] Furthermore, the first driving cavity Q1 is provided with a first magnetic induction switch 212, and the second driving cavity Q2 is provided with a second magnetic induction switch 213. The first magnetic induction switch 212 and the second magnetic induction switch 213 are respectively connected to the control system 1 for identifying the piston assembly 211 in-position signal and transmitting it to the control system 1.

[0036] In order to realize the automatic reciprocating boosting of the gas booster pump 21, a two-position five-way reversing valve 31 can be provided in the driving system 3. The first outlet 311 of the two-position five-way reversing valve is connected to the first driving chamber Q1, and the second outlet 312 of the two-position five-way reversing valve is connected to the second driving chamber Q2. Figure 3 As shown, the control system 1 controls the two-position five-way reversing valve 31 to automatically switch the outlet, so that the control gas alternately enters the first driving chamber Q1 and the second driving chamber Q2, thereby realizing the continuous pressurization operation of the gas booster pump 21.

[0037] Specifically, firstly, the first outlet 311 of the two-position five-way reversing valve is connected to the first drive chamber Q1 through the control system 1, so that the control gas is filled into the first drive chamber Q1. As the control gas is filled into the first drive chamber Q1, the large-area piston end of the piston assembly 211 moves toward the second high-pressure chamber G2 under the action of the control gas, thereby increasing the volume of the first drive chamber Q1 and the first high-pressure chamber G1, while reducing the volume of the second drive chamber Q2 and the second high-pressure chamber G2. After being compressed, the medium in the second high-pressure chamber G2 is filled into the gas cylinder 4 along the high-pressure medium outlet B, and the first high-pressure chamber G1 can be continuously filled with the medium as the volume increases.

[0038] When the piston assembly 211 moves to the limit toward the second high-pressure chamber G2, the second magnetic induction switch 213 recognizes the in-position signal and transmits it to the control system 1. The control system 1 controls the two-position five-way reversing valve 31 to disconnect the first outlet 311 from the first drive chamber Q1, and connects to the second drive chamber Q2 through the second outlet 312. As the control gas is filled into the second drive chamber Q2, the large-area piston end of the piston assembly 211 moves toward the first high-pressure chamber G1 under the action of the control gas, thereby increasing the volume of the second drive chamber Q2 and the second high-pressure chamber G2, and reducing the volume of the first drive chamber Q1 and the first high-pressure chamber G1. After the medium in the first high-pressure chamber G1 is compressed, it is filled into the gas cylinder 4 along the high-pressure medium outlet B. The second high-pressure chamber G2 can be continuously filled with medium as the volume increases.

[0039] When the piston assembly 211 moves to the limit toward the first high-pressure chamber G1, the first magnetic induction switch 212 recognizes the in-position signal and transmits the signal to the control system 1. The control system 1 causes the two-position five-way solenoid valve 31 to disconnect the second outlet 312 from the second drive chamber Q2, and connect the first outlet 311 to the first drive chamber Q1. This process is repeated to allow the gas booster pump 21 to automatically circulate.

[0040] See also Figure 2 and Figure 3 In the above embodiment, the drive system 3 further includes a first solenoid valve 32, a pressure reducing valve 33 and an electric proportional valve 34 which are sequentially connected. The inlet of the first solenoid valve 32 serves as the control gas inlet. Opening the first solenoid valve 32 can realize the charging of the control gas. The two-position five-way reversing valve 31 is arranged downstream of the electric proportional valve 34. In order to prevent the excess control gas from entering the system, a filter 35 can be arranged downstream of the first solenoid valve 32. In the pneumatic boosting automatic control system of the embodiment of the utility model, the control gas enters the two-position five-way reversing valve 31 after passing through the first solenoid valve 32, the filter 35, the pressure reducing valve 33 and the electric proportional valve 34 in sequence, and is configured to the corresponding drive cavity as needed through the two-position five-way reversing valve 31.

[0041] Furthermore, a first pressure sensor 36 is provided at the outlet of the electric proportional valve 34 to measure the pressure of the control gas in the drive system. A throttle valve 37 is provided at the inlet of the two-position five-way reversing valve 31, through which the flow of the control gas in the drive system can be adjusted.

[0042] In the pneumatic boosting automatic control system of the embodiment of the utility model, at the initial stage of boosting, the pressure of the piston of the corresponding driving chamber in the pneumatic boosting pump is much greater than the pressure of the boosting chamber, at which time the circulation speed is the fastest and the output medium flow is the largest. As the output pressure gradually increases, the resistance borne by the piston assembly becomes greater and greater, and the circulation speed of the pneumatic boosting pump becomes slower and slower.

[0043] According to the energization time of the corresponding coil of the two-position five-way solenoid valve and the corresponding high-level signal of the magnetic induction switch, the time T of each operation of the piston of the corresponding driving chamber can be calculated. By comparing the multiple operation times, the downward trend of the boost rate can be obtained. When the inflation rate drops to a certain level, the control system begins to increase the analog input signal given to the electrical proportional valve, so that the electrical proportional valve outputs a higher control gas pressure to increase the boost rate. The time T of each operation of the piston of the corresponding driving chamber is recalculated again, and a new downward trend of the boost rate is obtained.

[0044] Continue to see Figure 2 and Figure 3 In any of the above embodiments, the boosting system further includes a second solenoid valve 23 disposed upstream of the gas boosting pump 21. The inlet of the second solenoid valve 23 is connected to the medium inlet A, and the outlet of the second solenoid valve 23 is divided into a first branch L1 and a second branch L2. The first branch L1 is connected to the inlet of the first high-pressure chamber G1 through the first one-way valve 24, and the second branch L2 is connected to the inlet of the second high-pressure chamber G2 through the second one-way valve 25. The outlet of the first high-pressure chamber G1 is connected to the inlet of the high-pressure outlet solenoid valve 22 through the third one-way valve 26, and the outlet of the second high-pressure chamber G2 is connected to the inlet of the high-pressure outlet solenoid valve 22 through the fourth one-way valve 27.

[0045] The first one-way valve 24 and the second one-way valve 25 are used to prevent the backflow of the compressed medium in the corresponding high-pressure chamber of the gas booster pump, ensuring that the compressed medium in the corresponding high-pressure chamber can only flow out from the chamber outlet. The third one-way valve 26 and the fourth one-way valve 27 are used to prevent the backflow of the medium on one side of the gas cylinder 4.

[0046] In order to facilitate the observation of the pressure changes before and after the medium filled in the gas cylinder 4, a second pressure sensor 29 can be set at the outlet of the second solenoid valve 23 to measure the medium pressure on the inlet side of the gas booster pump 21. A third pressure sensor 28 is provided at the inlet of the high-pressure outlet solenoid valve 22. The pressure of the medium after being pressurized by the gas booster pump is measured by the third pressure sensor 28. When the measured value of the third pressure sensor 28 is higher than the set pressure and maintained for a period of time, the control system 1 no longer sends a signal to the two-position five-way solenoid valve 31, waiting for the gas cylinder temperature to start to drop to room temperature. During the cooling process, due to the thermal expansion and contraction of the gas, the gas cylinder 4 pressure starts to be replenished when it is low, until the pressure (measured value of the third pressure sensor 28) and temperature (measured value of the temperature sensor 41) of the gas cylinder 4 reach the set value, and the filling of the gas cylinder 4 is completed.

[0047] After the gas cylinder is filled, the medium in the system needs to be discharged in other ways. For example, a discharge pipe 5 controlled by a discharge solenoid valve 51 can be set at the inlet of the high-pressure outlet solenoid valve 22. After closing the second solenoid valve 23 and the high-pressure outlet solenoid valve 22 in sequence, the discharge solenoid valve 51 is opened to discharge the excess pressurized medium. After the high-pressure medium is completely discharged, the pressurization process ends.

[0048] See also Figure 4 In the above embodiment, the control system 1 at least includes a touch screen 11, a PLC 12 and a solid-state relay 13. The touch screen 11 is set at multiple locations in the factory and is connected to the PLC 12 via Ethernet. The PLC 12 is connected to the first solenoid valve 32, the second solenoid valve 23, the two-position five-way reversing valve 31, the high-pressure outlet solenoid valve 22 and the unloading solenoid valve 51 through the solid-state relay 13. The PLC 12 is also connected to the first pressure sensor 36, the second pressure sensor 29, the third pressure sensor 28, the temperature sensor 41, the electrical proportional valve 34, the first magnetic induction switch 212 and the second magnetic induction switch 213.

[0049] When using the pneumatic booster automatic control system of the embodiment of the utility model, first use the PLC to open the second solenoid valve and the high-pressure outlet solenoid valve in sequence, and then use the PLC to give an analog input signal to the electrical proportional valve to make the electrical proportional valve output an initial control gas pressure.

[0050] The pneumatic boosting automatic control system of the utility model embodiment realizes the automation of the boosting process by using PLC to collect pressure and temperature data, and remotely controls the electric proportional valve to adjust the pressure, and automatically adjusts the pressure of the control gas and adaptively adjusts the inflation speed by judging the pressure and temperature of the gas cylinder and knowing the position of the piston assembly through the magnetic induction switch.

[0051] The above embodiments can be combined with each other and have corresponding technical effects.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic booster automatic control system, characterized in that: At least comprises a control system, a boosting system, a driving system and a gas cylinder, wherein the control system is respectively connected to the driving system and the boosting system for communication; The boosting system is provided with a medium inlet, a gas boosting pump and a high-pressure medium outlet which are connected to each other; the driving system is connected to the gas boosting pump, and the gas cylinder is connected to the high-pressure medium outlet; The gas booster pump comprises a first high-pressure chamber, a first drive chamber, a second drive chamber and a second high-pressure chamber separated by a piston assembly; the outlets of the first high-pressure chamber and the second high-pressure chamber are connected to the gas cylinder after being communicated with the high-pressure medium outlet; The medium enters the gas booster pump through the medium inlet, and the control system controls the drive system to regulate the gas booster pump, so that a pressure difference is generated between the first drive chamber and the second drive chamber, and the piston assembly is driven to move to the side with smaller pressure, thereby pressurizing the medium in the corresponding high-pressure chamber, and the pressurized medium is filled into the gas cylinder through the high-pressure medium outlet.

2. The pneumatic booster automatic control system according to claim 1, characterized in that: The gas cylinder end is provided with a temperature sensor which is in communication with the control system; the temperature sensor is used to measure the temperature of the gas cylinder. When the temperature is greater than a certain upper limit, the control system controls the drive system to reduce the boosting rate of the gas booster pump.

3. The pneumatic booster automatic control system according to claim 2, characterized in that: A high-pressure outlet solenoid valve is provided between the high-pressure medium outlet and the gas cylinder.

4. The pneumatic booster automatic control system according to claim 3, characterized in that: The drive system at least comprises a first solenoid valve, an electric proportional valve and a two-position five-way reversing valve which are sequentially connected; the inlet of the first solenoid valve serves as a control air inlet, the first outlet of the two-position five-way reversing valve is connected to the first drive chamber, and the second outlet of the two-position five-way reversing valve is connected to the second drive chamber; The control system controls the two-position five-way reversing valve to automatically switch the outlet, so that the control gas alternately enters the first driving chamber and the second driving chamber, thereby realizing the continuous pressurization operation of the gas booster pump.

5. The pneumatic booster automatic control system according to claim 4, characterized in that: A magnetic induction switch is provided in each of the first driving cavity and the second driving cavity; the magnetic induction switch is communicatively connected with the control system to identify the piston assembly in-position signal and transmit it to the control system.

6. The pneumatic booster automatic control system according to claim 5, characterized in that: A filter and a pressure reducing valve are sequentially arranged between the first solenoid valve and the electrical proportional valve; The outlet of the electric proportional valve is provided with a first pressure sensor, and the inlet of the two-position five-way reversing valve is provided with a throttle valve.

7. The pneumatic booster automatic control system according to claim 6, characterized in that: The boosting system further includes a second solenoid valve disposed upstream of the gas boosting pump; The inlet of the second solenoid valve is connected to the medium inlet, and the outlet of the second solenoid valve is divided into a first branch and a second branch, the first branch is connected to the inlet of the first high-pressure chamber through a first one-way valve, and the second branch is connected to the inlet of the second high-pressure chamber through a second one-way valve; The first high-pressure chamber outlet is connected to the high-pressure outlet solenoid valve inlet through a third one-way valve, and the second high-pressure chamber outlet is connected to the high-pressure outlet solenoid valve inlet through a fourth one-way valve.

8. The pneumatic booster automatic control system according to claim 7, characterized in that: A second pressure sensor is provided at the outlet of the second solenoid valve for measuring the medium pressure at the inlet side of the gas booster pump; a third pressure sensor is provided at the inlet of the high-pressure outlet solenoid valve for measuring the medium pressure after being pressurized by the gas booster pump.

9. The pneumatic booster automatic control system according to claim 8, characterized in that: The inlet of the high-pressure outlet solenoid valve is provided with a discharge pipeline whose on / off is controlled by a discharge solenoid valve; the excess pressurized medium can be discharged by opening the discharge solenoid valve.

10. The pneumatic booster automatic control system according to claim 9, characterized in that: The control system at least includes a touch screen, a PLC and a solid-state relay; the touch screen is set at multiple locations in the factory and connected to the PLC via Ethernet; The PLC is connected to the first solenoid valve, the second solenoid valve, the two-position five-way reversing valve, the high-pressure outlet solenoid valve and the unloading solenoid valve through the solid-state relay; The PLC is also in communication connection with the first pressure sensor, the second pressure sensor, the third pressure sensor, the temperature sensor and the magnetic induction switch.

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