An adjustable pressure pneumatic supercharging system

Abstract

The utility model discloses a kind of pressure-adjustable pneumatic supercharging systems, including first supercharging cylinder, second supercharging cylinder;Gas source pipe is communicated with the low pressure part of first supercharging cylinder, second supercharging cylinder respectively, and gas source pipe is used for accessing compressed air;Electromagnetic control valve is provided on gas source pipe;The high pressure part of first supercharging cylinder, second supercharging cylinder is communicated by middle pipeline;Upstream pipeline is communicated with the high pressure part of first supercharging cylinder;Downstream pipeline is communicated with the high pressure part of second supercharging cylinder, and relief electromagnetic control valve is provided on downstream pipeline;First connecting pipeline is communicated with upstream pipeline and middle pipeline respectively;Second connecting pipeline is communicated with middle pipeline and downstream pipeline respectively;High pressure test equipment is communicated with second connecting pipeline;Upstream pipeline is used to transport supercharged liquid, and one end of downstream pipeline is used to discharge supercharged liquid, first pressure regulating valve is provided on the pipeline of gas source pipe and first supercharging cylinder connection, second pressure regulating valve is provided on the pipeline of gas source pipe and second supercharging cylinder connection.

Description

Technical Field

[0001] This utility model relates to the field of equipment safety testing, and in particular to an adjustable pressure pneumatic booster system. Background Technology

[0002] High-pressure equipment such as valves, gas cylinders, hoses, and pipelines are important components of industrial production equipment. To promptly detect quality problems in these devices and ensure the safety and reliability of the production system, they need to be tested according to standard requirements before or periodically. The most important test item is a pressure resistance test exceeding the working pressure. Because these devices have a very wide test pressure range, from several megapascals to several hundred, the required pressurization rate and flow rate also vary. Therefore, different levels and types of pressurization equipment are needed, which increases costs, occupies more space, and affects testing efficiency. Existing high-pressure testing equipment for valves, gas cylinders, hoses, and pipelines suffers from problems such as large pressure variations in static pressure tests or burst tests, and poor flow control during pressurization.

[0003] Therefore, an adjustable pressure pneumatic booster system is needed to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] An adjustable pressure pneumatic booster system includes a first booster cylinder and a second booster cylinder; an air source pipe is connected to the low-pressure section of the first booster cylinder and the second booster cylinder respectively, and the air source pipe is used to connect to compressed air; an electromagnetic control valve is provided on the air source pipe.

[0006] The high-pressure sections of the first and second booster cylinders are connected via a central pipeline, on which a second electromagnetic control valve is installed. Both the first and second booster cylinders include a high-pressure section and a low-pressure section. The upstream pipeline is connected to the high-pressure section of the first booster cylinder, and a first electromagnetic control valve is installed on the upstream pipeline. The downstream pipeline is connected to the high-pressure section of the second booster cylinder, and a pressure relief electromagnetic control valve is installed on the downstream pipeline. The first connecting pipeline is connected to both the upstream and central pipelines, and a fourth electromagnetic control valve is installed on the first connecting pipeline. The second connecting pipeline is connected to both the central and downstream pipelines. The high-pressure testing equipment is connected to the second connecting pipeline, and a fifth electromagnetic control valve is installed on the second connecting pipeline. The upstream pipeline is used to transport the booster liquid, and one end of the downstream pipeline is used to discharge the booster liquid. A first pressure regulating valve is installed on the pipeline connecting the gas source pipe to the first booster cylinder, and a second pressure regulating valve is installed on the pipeline connecting the gas source pipe to the second booster cylinder.

[0007] Preferably, the high-pressure section includes a first cylinder cavity, a first piston, and a first piston rod, with the first piston movably disposed within the first cylinder cavity; the low-pressure section includes a second cylinder cavity and a second piston, with the second piston movably disposed within the second cylinder cavity, and the two ends of the first piston rod being fixedly connected to the first piston and the second piston, respectively, with the cross-sectional area of ​​the first piston being smaller than that of the second piston.

[0008] Preferably, the pressurizing liquid is water, and one end of the upstream pipeline is connected to an external water source.

[0009] Preferably, a compressed air filter is also installed on the air source pipe.

[0010] Preferably, a one-way valve is installed on the middle pipeline; the second electromagnetic control valve is installed at the connection between the first connecting pipeline and the middle pipeline and between the first booster cylinder.

[0011] Preferably, a third pressure sensor is installed on the second connecting pipe.

[0012] Preferably, the connection point between the first connecting pipeline and the upstream pipeline is located between the first booster cylinder and the first solenoid control valve.

[0013] Preferably, the connection point between the second connecting pipeline and the downstream pipeline is located between the second booster cylinder and the pressure relief solenoid control valve.

[0014] Preferably, a sixth electromagnetic control valve and a fourth pressure sensor are installed on the pipeline connecting the high-pressure testing equipment and the second connecting pipeline.

[0015] Preferably, the high-pressure testing equipment is connected to a temperature sensor, which is used to detect the temperature of the high-pressure testing equipment.

[0016] In the preferred embodiment, a first pressure sensor and a first two-position five-way directional valve are installed on the pipeline connecting the air source pipe and the first booster cylinder.

[0017] Preferably, a second pressure sensor and a second two-position five-way reversing valve are installed on the pipeline connecting the air source pipe and the second booster cylinder.

[0018] Preferably, the adjustable pressure pneumatic booster system also includes a computer and PLC controller, and solid-state relays; the PLC controller communicates with the first two-position five-way directional valve, the second two-position five-way directional valve, the first pressure regulating valve, the second pressure regulating valve, the solenoid control valve, the first solenoid control valve, the second solenoid control valve, the pressure relief solenoid control valve, the fourth solenoid control valve, the fifth solenoid control valve, the sixth solenoid control valve, the first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor, and the temperature sensor via the solid-state relays; the computer communicates with the PLC controller.

[0019] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0020] This invention solves the problems of large pressure variation range and poor flow control during the pressurization process in existing high-pressure testing equipment such as valves, gas cylinders, hoses, and pipelines during static pressure testing or burst testing.

[0021] Secondly, by adopting automatic control via computer and PLC controller, the static pressure test or burst test pressure can be automatically increased using appropriate pressurization methods as required, expanding the applicability of the equipment, reducing equipment investment, lowering labor intensity, and improving testing efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the adjustable pressure pneumatic booster system of this utility model;

[0024] Figure 2 This is a schematic diagram of the adjustable pressure pneumatic booster system of this utility model.

[0025] Explanation of main component symbols

[0026] First booster cylinder 6 Second booster cylinder 10 Gas supply pipe 31 Electromagnetic control valve 1 Central Pipeline 33 Second electromagnetic control valve 14 Upstream pipeline 32 First electromagnetic control valve 1 Downstream pipeline 34 Pressure relief solenoid control valve 16 First connecting pipe 35 Fourth electromagnetic control valve 17 Second connecting pipe 36 Five electromagnetic control valves 19 First pressure regulating valve 3 Second pressure regulating valve 7 Compressed air filter 2 One-way valve 30 Third pressure sensor 18 Sixth electromagnetic control valve 20 Fourth pressure sensor 21 High-voltage testing equipment 23 Temperature sensor 22 First and second position five-way reversing valve 5 PLC controller 25 Computer 24 Solid State Relay 26

[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to imply non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] Please see Figure 1-2 This utility model provides an adjustable pressure pneumatic booster system, including a first booster cylinder 6 and a second booster cylinder 10;

[0031] The air supply pipe 31 is connected to the low-pressure section of the first booster cylinder 6 and the second booster cylinder 10 respectively, and the air supply pipe 31 is used to connect to compressed air; an electromagnetic control valve 1 is installed on the air supply pipe 31.

[0032] The high-pressure sections of the first booster cylinder 6 and the second booster cylinder 10 are connected via a central pipeline 33. A second electromagnetic control valve 14 is installed on the central pipeline 33. Both the first booster cylinder 6 and the second booster cylinder 10 include a high-pressure section and a low-pressure section. The upstream pipeline 32 is connected to the high-pressure section of the first booster cylinder 6, and a first electromagnetic control valve 11 is installed on the upstream pipeline 32. The downstream pipeline 34 is connected to the high-pressure section of the second booster cylinder 10, and a pressure relief electromagnetic control valve 16 is installed on the downstream pipeline 34. The first connecting pipeline 35 is connected to both the upstream pipeline and the central pipeline. A fourth electromagnetic control valve 17 is installed on the first connecting pipeline; the second connecting pipeline 36 is connected to the middle pipeline and the downstream pipeline 34 respectively; the high-pressure test equipment 23 is connected to the second connecting pipeline, and a fifth electromagnetic control valve 19 is installed on the second connecting pipeline 36; the upstream pipeline 32 is used to transport pressurized liquid, and one end of the downstream pipeline 34 is used to discharge pressurized liquid; a first pressure regulating valve 3 is installed on the pipeline connecting the gas source pipe 31 and the first pressurizing cylinder 6, and a second pressure regulating valve 7 is installed on the pipeline connecting the gas source pipe 31 and the second pressurizing cylinder 10.

[0033] In one embodiment of the present invention, the high-pressure section includes a first cylinder cavity, a first piston, and a first piston rod, with the first piston movably disposed within the first cylinder cavity; the low-pressure section includes a second cylinder cavity and a second piston, with the second piston movably disposed within the second cylinder cavity; the two ends of the first piston rod are fixedly connected to the first piston and the second piston, respectively; and the cross-sectional area of ​​the first piston is smaller than the cross-sectional area of ​​the second piston.

[0034] In one embodiment of this utility model, the pressurizing liquid is water, and one end of the upstream pipeline 32 is connected to an external water source.

[0035] In one embodiment of this invention, the pressurized liquid is delivered by a delivery pump or a high-pressure pump.

[0036] In one embodiment of this utility model, one end of the downstream pipeline 34 is used to discharge pressurized liquid.

[0037] In one embodiment of this utility model, a compressed air filter 2 is also provided on the air source pipe.

[0038] In one embodiment of this utility model, a one-way valve 30 is provided on the central pipeline 33; the second electromagnetic control valve 14 is provided between the connection between the first connecting pipeline 35 and the central pipeline 33 and the first booster cylinder 6.

[0039] In one embodiment of this utility model, a third pressure sensor 18 is provided on the second connecting pipe 36.

[0040] In one embodiment of this utility model, a one-way valve 30 is provided on the upstream pipeline 32;

[0041] In one embodiment of this utility model, a one-way valve 30 is provided on the downstream pipeline 34.

[0042] In one embodiment of the present invention, the connection point between the first connecting pipe 35 and the upstream pipe 32 is located between the first booster cylinder 6 and the first electromagnetic control valve 11.

[0043] In one embodiment of the present invention, the connection point between the second connecting pipe 36 and the downstream pipe 34 is located between the second booster cylinder 10 and the pressure relief solenoid control valve 16.

[0044] In one embodiment of this utility model, a sixth electromagnetic control valve 20 and a fourth pressure sensor 21 are provided on the pipeline connecting the high-pressure testing equipment 23 and the second connecting pipeline.

[0045] In one embodiment of this utility model, the high-voltage testing equipment 23 is connected to the temperature sensor 22, and the temperature sensor 22 is used to detect the temperature of the high-voltage testing equipment 23.

[0046] In one embodiment of this utility model, a first pressure sensor 4 and a first two-position five-way reversing valve 5 are provided on the pipeline connecting the air source pipe 31 and the first booster cylinder 6.

[0047] In one embodiment of this utility model, a second pressure sensor 8 and a second two-position five-way reversing valve 9 are provided on the pipeline connecting the air source pipe 31 and the second booster cylinder 10.

[0048] Please see Figure 2 In one embodiment of this utility model, the adjustable pressure pneumatic booster system further includes a computer 24, a PLC controller 25, and a solid-state relay 26. The PLC controller 25 is connected via the solid-state relay 26 to the first two-position five-way reversing valve 5, the second two-position five-way reversing valve 9, the first pressure regulating valve 3, the second pressure regulating valve 7, the solenoid control valve 1, the first solenoid control valve 11, the second solenoid control valve 14, the pressure relief solenoid control valve 16, the fourth solenoid control valve 17, the fifth solenoid control valve 19, the sixth solenoid control valve 20, the first pressure sensor 4, the second pressure sensor 8, the third pressure sensor 18, the fourth pressure sensor 21, and the temperature sensor 22. The computer 24 is connected via communication with the PLC controller 25.

[0049] When this utility model is used and a relatively high pressure is required, the first booster cylinder 6 and the second booster cylinder 10 are used in series. The electromagnetic control valve 1, the first electromagnetic control valve 11, and the second electromagnetic control valve 14 are opened in sequence, while the pressure relief electromagnetic control valve 16, the fourth electromagnetic control valve 17, and the fifth electromagnetic control valve 19 are closed. By adjusting the analog input signals of the first pressure regulating valve 3 and the second pressure regulating valve 7, the first pressure regulating valve 3 and the second pressure regulating valve 7 are made to output the initial control air pressure.

[0050] When a lower pressure and higher flow rate are required, the first booster cylinder 6 and the second booster cylinder 10 are used in parallel. The compressed air solenoid control valve 1, the first solenoid control valve 11, the fourth solenoid control valve 17, and the fifth solenoid control valve 19 are opened in sequence, while the second solenoid control valve 14 and the pressure relief solenoid control valve 16 are closed. By adjusting the analog input signals of the first pressure regulating valve 3 and the second pressure regulating valve 7, the first pressure regulating valve 3 and the second pressure regulating valve 7 are made to output the initial control air pressure.

[0051] The pressure relief solenoid control valve 16 opens when pressure relief is required.

[0052] Furthermore, the analog input signals of the first pressure regulating valve 3 and the second pressure regulating valve 7 are adjusted by the PLC controller 25.

[0053] Furthermore, the PLC controller 25 collects pressure and temperature data at corresponding locations of the adjustable pressure pneumatic booster system and remotely controls the corresponding first pressure regulating valve 3 and second pressure regulating valve 7 to adjust the pressure. By judging the pressure and temperature of the high-pressure test equipment, the pressure of the compressed air entering the first booster cylinder 6 and the second booster cylinder 10 is automatically adjusted, the inflation speed is adaptively adjusted, and the pressure of the output booster liquid is adjusted. The higher the pressure of the compressed air entering the first booster cylinder 6 and the second booster cylinder 10, the greater the output booster liquid flow rate, and the higher the maximum pressure of the booster liquid that can be output, thereby realizing the automation of the boosting process.

[0054] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An adjustable pressure pneumatic supercharging system, characterized by: Including the first booster cylinder and the second booster cylinder; The air supply pipe is connected to the low-pressure section of the first booster cylinder and the second booster cylinder respectively, and the air supply pipe is used to connect to compressed air; an electromagnetic control valve is installed on the air supply pipe. The high-pressure sections of the first and second booster cylinders are connected via a central pipeline, on which a second electromagnetic control valve is installed. Both the first and second booster cylinders include a high-pressure section and a low-pressure section. The upstream pipeline is connected to the high-pressure section of the first booster cylinder, and a first electromagnetic control valve is installed on the upstream pipeline. The downstream pipeline is connected to the high-pressure section of the second booster cylinder, and a pressure relief electromagnetic control valve is installed on the downstream pipeline. The first connecting pipeline is connected to both the upstream and central pipelines, and a fourth electromagnetic control valve is installed on the first connecting pipeline. The second connecting pipeline is connected to both the central and downstream pipelines. The high-pressure testing equipment is connected to the second connecting pipeline, and a fifth electromagnetic control valve is installed on the second connecting pipeline. The upstream pipeline is used to transport the booster liquid, and one end of the downstream pipeline is used to discharge the booster liquid. A first pressure regulating valve is installed on the pipeline connecting the gas source pipe to the first booster cylinder, and a second pressure regulating valve is installed on the pipeline connecting the gas source pipe to the second booster cylinder.

2. The adjustable pressure pneumatic supercharging system of claim 1, wherein: A compressed air filter is also installed on the air supply pipe.

3. The adjustable pressure pneumatic supercharging system of claim 2, wherein: A one-way valve is installed on the central pipeline; a second electromagnetic control valve is installed at the connection between the first connecting pipeline and the central pipeline and between the first booster cylinder.

4. The pressure-adjustable pneumatic supercharging system of claim 3, wherein: A third pressure sensor is installed on the second connecting pipe; the connection point between the first connecting pipe and the upstream pipe is located between the first booster cylinder and the first solenoid control valve.

5. The pressure-adjustable pneumatic supercharging system of claim 4, wherein: The connection point between the second connecting pipeline and the downstream pipeline is located between the second booster cylinder and the pressure relief solenoid control valve.

6. The pressure-adjustable pneumatic supercharging system of claim 5, wherein: A sixth electromagnetic control valve and a fourth pressure sensor are installed on the pipeline connecting the high-pressure testing equipment and the second connecting pipeline.

7. The adjustable pressure pneumatic supercharging system of claim 6, wherein: The high-voltage testing equipment is connected to a temperature sensor, which is used to detect the temperature of the high-voltage testing equipment.

8. The adjustable pressure pneumatic supercharging system of claim 7, wherein: A first pressure sensor and a first two-position five-way directional valve are installed on the pipeline connecting the air source pipe to the first booster cylinder; a second pressure sensor and a second two-position five-way directional valve are installed on the pipeline connecting the air source pipe to the second booster cylinder.

9. The adjustable pressure pneumatic supercharging system of claim 8, wherein: The adjustable pressure pneumatic booster system also includes a computer and PLC controller, and solid-state relays; the PLC controller communicates with the first two-position five-way directional valve, the second two-position five-way directional valve, the first pressure regulating valve, the second pressure regulating valve, the solenoid control valve, the first solenoid control valve, the second solenoid control valve, the pressure relief solenoid control valve, the fourth solenoid control valve, the fifth solenoid control valve, the sixth solenoid control valve, the first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor, and the temperature sensor via the solid-state relays; the computer communicates with the PLC controller.

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