Ultrahigh pressure testing system

Abstract

The utility model discloses an ultrahigh pressure testing system, which comprises a pressure supply system, a control pressure maintaining loop system and a near-end pressure maintaining unit, and is characterized in that the pressure supply system comprises a medium supply device and a booster pump which are communicated with each other; the control pressure maintaining loop system comprises a first stop valve, a second stop valve and a first pressure sensor which are sequentially arranged on a first liquid outlet pipe, one end of the first liquid outlet pipe is communicated with a liquid outlet of the booster pump, the other end of the first liquid outlet pipe is communicated with the high-pressure hose, and the first stop valve is arranged close to the booster pump; the near-end pressure maintaining unit comprises a third stop valve and a second pressure sensor which are sequentially arranged on a second liquid outlet pipe, one end of the second liquid outlet pipe is communicated with the high-pressure hose, the other end of the second liquid outlet pipe is communicated with a measured object, and the second pressure sensor is arranged close to the measured object. According to the ultrahigh pressure test system, the medium pressure measurement result of the tested object is more accurate, and whether the tested object leaks or not can be easily found.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure detection equipment, in particular to an ultra-high pressure testing system. Background Art

[0002] The pressure test system is a professional pressure test equipment for testing the sealing performance. It can be used to test the pressure change and the sealing performance of the object being tested. It has a wide range of applications and can be used for sealing performance tests of valves, pipes, hoses, etc.

[0003] The medium of the pressure test system is generally tap water or inert gas. Tap water or inert gas has good stability, is not easy to react, and is easy to obtain. In the prior art, during the pressure test, the object to be tested is placed in the test room, and the pressure test equipment is placed outside the test room, and the two are connected by a high-pressure hose. At present, the detection of pressure relies on the sensor set in the pressure test equipment, that is, the sensor for detecting pressure is set at the end of the high-pressure hose away from the object to be tested. Since the high-pressure hose is generally long, the hose pressure changes greatly, and the pressure sensor fluctuates greatly, which leads to inaccurate pressure received by the sensor in the pressure test equipment, and the pressure value has errors, making it difficult to detect leakage of the object to be tested. Utility Model Content

[0004] In view of this, the utility model provides an ultra-high pressure test system, which makes the medium pressure measurement result of the measured object more accurate and makes it easy to find out whether the measured object is leaking.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ultra-high pressure test system, comprising:

[0007] A pressure supply system, including a medium supply device and a booster pump which are connected and arranged;

[0008] A control pressure-maintaining circuit system includes a first stop valve, a second stop valve and a first pressure sensor which are sequentially arranged on a first liquid outlet pipe, one end of the first liquid outlet pipe is connected to the liquid outlet of the booster pump, and the other end is connected to a high-pressure hose, and the first stop valve is arranged close to the booster pump;

[0009] The proximal pressure-maintaining unit includes a third stop valve and a second pressure sensor which are sequentially arranged on a second liquid outlet pipe. One end of the second liquid outlet pipe is connected to the high-pressure hose, and the other end is connected to the object to be measured. The second pressure sensor is arranged close to the object to be measured.

[0010] Optionally, it comprises a first air control branch, one end of which is connected to the driving air supply device, and the other end of which is connected to the control end of the booster pump;

[0011] The first air control branch is provided with a first solenoid valve.

[0012] Optionally, a first pressure regulating valve is further provided on the first air control branch, and the first pressure regulating valve is provided between the first solenoid valve and the driving air supply device.

[0013] Optionally, a second air control branch is included, one end of which is connected to the driving air supply device, and the other end of which is connected to the control ends of the first stop valve, the second stop valve and the third stop valve;

[0014] The first stop valve, the second stop valve and the third stop valve are all gas-controlled stop valves.

[0015] Optionally, the second gas control branch is provided with a first control loop, a second control loop and a third control loop in sequence;

[0016] The first control circuit is provided with a second solenoid valve and a first bypass ball valve in sequence, and a bypass port of the first bypass ball valve is connected to a control end of the first stop valve;

[0017] The second control circuit is provided with a third solenoid valve and a second bypass ball valve in sequence, and the bypass port of the second bypass ball valve is connected to the control end of the second stop valve;

[0018] The third control circuit is provided with a fourth solenoid valve and a third bypass ball valve in sequence, and a bypass port of the third bypass ball valve is communicated with a control end of the third stop valve.

[0019] Optionally, the first control circuit is arranged close to the driving gas supply device, and the second gas control branch is located at the upstream end of the first control circuit and is provided with a second pressure regulating valve.

[0020] Optionally, the second gas-controlled branch road is provided with a first branch road, a second branch road and a third branch road in sequence; the first stop valve, the second stop valve and the third stop valve are all gas-controlled stop valves;

[0021] A first valve is provided on the first branch line, one end of the first branch line is connected to the second air control branch line, and the other end of the first branch line is connected to the control end of the first stop valve;

[0022] A second valve is provided on the second branch road, one end of the second branch road is connected to the second air control branch road, and the other end is connected to the control end of the second stop valve;

[0023] The third branch road is provided with a third valve, one end of the third branch road is communicated with the second air control branch road, and the other end of the third branch road is communicated with the control end of the third stop valve.

[0024] Optionally, the first valve, the second valve and the third valve are electrically controlled valves or manual valves.

[0025] Optionally, the outlet end of the second stop valve is connected to a pressure relief pipeline.

[0026] Optionally, the first pressure sensor and the second pressure sensor are both integrated pressure and temperature sensors.

[0027] It can be seen from the above technical scheme that the ultra-high pressure pressure testing system provided by the utility model is provided with the proximal pressure maintaining unit, and the proximal pressure maintaining unit is provided with a third stop valve near the position of the high-pressure hose, so that when testing the pressure of the object to be tested, the connection between the object to be tested and the high-pressure hose is cut off by closing the third stop valve, thereby avoiding the influence of the pressure change of the high-pressure hose on the medium pressure of the object to be tested, making the medium pressure measurement result of the object to be tested more accurate, and it is easy to find out whether the object to be tested is leaking. By setting the control pressure maintaining circuit system, it is convenient to detect whether the liquid circuit composed of the first liquid outlet pipe and the high-pressure hose is leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 or the description of the prior art 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.

[0029] Figure 1 A schematic diagram of the structure of an ultra-high pressure test system provided by an embodiment of the utility model;

[0030] Figure 2 A schematic structural diagram of an ultra-high pressure testing system provided in another embodiment of the present invention.

[0031] in:

[0032] 1. Medium supply device, 2. First pressure regulating valve, 3. Second pressure regulating valve, 4. First solenoid valve, 5. Booster pump, 6. Second solenoid valve, 7. First bypass ball valve, 8. First stop valve, 9. Third solenoid valve, 10. Second bypass ball valve, 11. Second stop valve, 12. Fourth solenoid valve, 13. Third bypass ball valve, 14. First pressure sensor, 15. Third stop valve, 16. Second pressure sensor, 17. Driving gas supply device, 18. High-pressure hose, 19. First liquid outlet pipe, 20. First air control branch, 21. Second air control branch, 22. Second liquid outlet pipe, 23. First valve, 24. Second valve, 25. Third valve. DETAILED DESCRIPTION

[0033] The utility model discloses an ultra-high pressure test system, which makes the medium pressure measurement result of the measured object more accurate and can easily find out whether the measured object leaks.

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1 and Figure 2 The ultra-high pressure test system of the utility model includes a pressure supply system, a control pressure-maintaining circuit system and a proximal pressure-maintaining unit. The pressure supply system includes a medium supply device 1 and a booster pump 5 which are connected. The control pressure-maintaining circuit system includes a first stop valve 8, a second stop valve 11 and a first pressure sensor 14 which are sequentially arranged on a first liquid outlet pipe 19. One end of the first liquid outlet pipe 19 is connected to the liquid outlet of the booster pump 5, and the other end is connected to a high-pressure hose 18. The first stop valve 8 is arranged close to the booster pump 5, the first pressure sensor 14 is arranged close to the high-pressure hose 18, and the second stop valve 11 is arranged between the first pressure sensor 14 and the first stop valve 8. The proximal pressure-maintaining unit includes a third stop valve 15 and a second pressure sensor 16 which are sequentially arranged on a second liquid outlet pipe 22. One end of the second liquid outlet pipe 22 is connected to the high-pressure hose 18, and the other end is connected to a test object (not shown in the figure). The second pressure sensor 16 is arranged close to the test object.

[0036] The pressure supply system is used to provide pressure for the medium output by the medium supply device 1, the control pressure maintaining circuit system is used to maintain pressure on the first liquid outlet pipe 19, and the proximal pressure maintaining unit is used to maintain pressure on the second liquid outlet pipe 22. The second stop valve 11 is arranged on the pressure relief pipeline connected to the first liquid outlet pipe 19. The second stop valve 11 is used to control whether the pressure relief pipeline is connected. The first pressure sensor 14 is used to detect the medium pressure in the first liquid outlet pipe 19 in the pressure testing equipment, and the second pressure sensor 16 is arranged at the rear end of the high-pressure hose 18, and is used to detect the pressure at the front end of the object to be tested. Figure 1 and Figure 2 The part surrounded by the double dotted line in the figure is the pressure test equipment part. The outlet end of the second stop valve 11 is connected to the pressure relief pipeline to control whether the pressure relief pipeline is connected or not.

[0037] The ultra-high pressure test system of the utility model is provided with the proximal pressure-maintaining unit, and the proximal pressure-maintaining unit is provided with the third stop valve 15 near the position of the high-pressure hose 18, so that when testing the pressure of the object to be tested, the connection between the object to be tested and the high-pressure hose 18 is cut off by closing the third stop valve 15, thereby avoiding the influence of the pressure change of the high-pressure hose 18 on the medium pressure of the object to be tested, making the medium pressure measurement result of the object to be tested more accurate, and it is easy to find out whether the object to be tested is leaking. By providing the control pressure-maintaining circuit system, it is convenient to detect whether the liquid circuit composed of the first liquid outlet pipe 19 and the high-pressure hose 18 is leaking, that is, to detect whether there is a leak in the device.

[0038] In order to facilitate the control of the booster pump 5, a first air control branch 20 is also provided, one end of the first air control branch 20 is connected to the driving air supply device 17, and the other end is connected to the control end of the booster pump 5. A first solenoid valve 4 is provided on the first air control branch 20, and the first solenoid valve 4 is provided to control the on-off of the first air control branch 20. A first pressure regulating valve 2 is also provided on the first air control branch 20, and the first pressure regulating valve 2 is provided between the first solenoid valve 4 and the driving air supply device 17. By adjusting the first pressure regulating valve 2, the airflow pressure in the first air control branch 20 is adjusted.

[0039] The ultra-high pressure test system of the utility model further includes a second air-controlled branch 21, one end of which is connected to the driving air supply device 17, and the other end is connected to the control ends of the first stop valve 8, the second stop valve 11 and the third stop valve 15. By setting the second air-controlled branch 21, it is convenient to control the opening and closing of the first stop valve 8, the second stop valve 11 and the third stop valve 15. Among them, the first stop valve 8, the second stop valve 11 and the third stop valve 15 are all air-controlled stop valves.

[0040] In one embodiment, referring to Figure 1As shown, the second air-controlled branch 21 is provided with a first control loop, a second control loop and a third control loop in sequence. Both ends of the pipeline of the first control loop are connected to the second air-controlled branch 21, and the second solenoid valve 6 and the first bypass ball valve 7 are provided in sequence on the pipeline of the first control loop, and the bypass port of the first bypass ball valve 7 is connected to the control end of the first stop valve 8. When the second solenoid valve 6 and the first bypass ball valve 7 are both opened, the driving gas controls the first stop valve 8 to open. Both ends of the pipeline of the second control loop are connected to the second air-controlled branch 21, and the third solenoid valve 9 and the second bypass ball valve 10 are provided in sequence on the pipeline of the second control loop, and the bypass port of the second bypass ball valve 10 is connected to the control end of the second stop valve 11. When the third solenoid valve 9 and the second bypass ball valve 10 are both opened, the driving gas controls the second stop valve 11 to open. Both ends of the pipeline of the third control circuit are connected to the second air control branch 21. The fourth solenoid valve 12 and the third bypass ball valve 13 are sequentially arranged on the pipeline of the third control circuit. The bypass port of the third bypass ball valve 13 is connected to the control end of the third stop valve 15.

[0041] When the fourth solenoid valve 12 and the third bypass ball valve 13 are both opened, the driving gas controls the third stop valve 15 to open. In this embodiment, by providing the second solenoid valve 6, the third solenoid valve 9 and the fourth solenoid valve 12, it is convenient to realize the automatic control of the corresponding control circuit. It can be understood that each solenoid valve is connected to the controller for communication.

[0042] Among them, the first control circuit is arranged near the driving gas supply device 17, and the third control circuit is arranged near the object to be measured. The second air-controlled branch 21 is located at the upstream end of the first control circuit and is provided with a second pressure regulating valve 3, and the second pressure regulating valve 3 is used to adjust the airflow pressure in the second air-controlled branch 21. When the first control circuit needs to be automatically controlled, the second solenoid valve 6 is opened under the control of the controller, and the first bypass ball valve 7 is opened at the same time, and the driving gas controls the opening of the first stop valve 8. When remote automatic control is not required, by switching the first bypass ball valve 7, the driving gas chooses to enter the gas from the side where the second solenoid valve 6 is not set, and the first bypass ball valve 7 controls the first stop valve 8 to switch, thereby realizing manual control. The automatic and manual control of the second stop valve 11 and the third stop valve 15 refer to the first stop valve 8, which will not be repeated here.

[0043] In another embodiment, referring to Figure 2, the second air-controlled branch 21 is provided with a first branch, a second branch and a third branch in sequence; the first stop valve 8, the second stop valve 11 and the third stop valve 15 are all air-controlled stop valves. A first valve 23 is provided on the first branch, one end of the first branch is connected to the second air-controlled branch 21, and the other end is connected to the control end of the first stop valve 8. A second valve 24 is provided on the second branch, one end of the second branch is connected to the second air-controlled branch 21, and the other end is connected to the control end of the second stop valve 11. A third valve 25 is provided on the third branch, one end of the third branch is connected to the second air-controlled branch 21, and the other end is connected to the control end of the third stop valve 15. The first valve 23, the second valve 24 and the third valve 25 are electrically controlled valves or manual valves. The other structures in this embodiment refer to the previous embodiment and are not repeated here.

[0044] Furthermore, the first pressure sensor 14 and the second pressure sensor 16 are both integrated pressure and temperature sensors, so that the sensors can detect changes in ambient temperature, thereby improving the accuracy of detected pressure data.

[0045] When the pressure supply system of the utility model is working, the medium supply device 1 provides the medium to be pressurized, such as tap water, and the driving gas supply device 17 provides pre-inflation air for the booster pump 5, adjusts the first pressure regulating valve 2, opens the first solenoid valve 4, and the air-driven booster pump 5 starts to work and pressurize to provide power, wherein the booster pump 5 is an air-controlled booster pump.

[0046] After the pressure supply system is pressurized, the control pressure-maintaining circuit system works, the driving gas supply device 17 provides driving gas, adjusts the second pressure regulating valve 3, opens the second solenoid valve 6, and then opens the first bypass ball valve 7. The driving gas controls the opening of the first stop valve 8, and the first pressure sensor 14 detects the pressure data of the pressure-maintaining end in the device. The fourth solenoid valve 12 in the proximal pressure-maintaining unit is opened, and then the third bypass ball valve 13 is opened. The driving gas controls the opening of the third stop valve 15, and the second pressure sensor 16 detects the pressure of the second liquid outlet pipe 22. The proximal pressure-maintaining unit is set close to the object to be tested, that is, close to the pressure test end, so that it can more accurately judge whether the object to be tested has leakage, and the accuracy of the pressure test data is better.

[0047] When the pressure detected by the first pressure sensor 14 reaches the set pressure, the first stop valve 8 is closed, the connection between the first liquid outlet pipe 19 and the booster pump 5 is disconnected, and the second stop valve 11 is closed at the same time to maintain the pressure in the equipment. The third stop valve 15 is closed, and the connection between the second liquid outlet pipe 22 and the high-pressure hose 18 is disconnected to avoid the influence of the pressure fluctuation of the high-pressure hose 18 on the detection data of the second pressure sensor 16. When the pressure test time is reached, the first stop valve 8, the second stop valve 11 and the third stop valve 15 are opened to release the pressure through the pressure relief pipeline.

[0048] The ultra-high pressure test system of the utility model reduces the influence of external factors on pressure detection data by setting the proximal pressure maintaining unit, makes the pressure test data of the object under test more accurate, and can more accurately judge whether the object under test has leakage.

[0049] In the description of this solution, it should be understood that the terms "upper", "lower", "vertical", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this solution.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this solution, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ultra-high pressure test system, characterized in that: include: A pressure supply system, including a medium supply device and a booster pump which are connected and arranged; A control pressure-maintaining circuit system includes a first stop valve, a second stop valve and a first pressure sensor which are sequentially arranged on a first liquid outlet pipe, one end of the first liquid outlet pipe is connected to the liquid outlet of the booster pump, and the other end is connected to a high-pressure hose, and the first stop valve is arranged close to the booster pump; The proximal pressure-maintaining unit includes a third stop valve and a second pressure sensor which are sequentially arranged on a second liquid outlet pipe. One end of the second liquid outlet pipe is connected to the high-pressure hose, and the other end is connected to the object to be measured. The second pressure sensor is arranged close to the object to be measured.

2. The ultra-high pressure test system according to claim 1, characterized in that: It comprises a first air control branch, one end of which is connected to the driving air supply device, and the other end of which is connected to the control end of the booster pump; The first air control branch is provided with a first solenoid valve.

3. The ultra-high pressure test system according to claim 2, characterized in that: The first air control branch is also provided with a first pressure regulating valve, and the first pressure regulating valve is provided between the first solenoid valve and the driving air supply device.

4. The ultra-high pressure test system according to claim 1, characterized in that: It includes a second air control branch, one end of which is connected to the driving air supply device, and the other end of which is connected to the control ends of the first stop valve, the second stop valve and the third stop valve; The first stop valve, the second stop valve and the third stop valve are all gas-controlled stop valves.

5. The ultra-high pressure test system according to claim 4, characterized in that: The second gas control branch is provided with a first control circuit, a second control circuit and a third control circuit in sequence; The first control circuit is provided with a second solenoid valve and a first bypass ball valve in sequence, and a bypass port of the first bypass ball valve is connected to a control end of the first stop valve; The second control circuit is provided with a third solenoid valve and a second bypass ball valve in sequence, and the bypass port of the second bypass ball valve is connected to the control end of the second stop valve; The third control circuit is provided with a fourth solenoid valve and a third bypass ball valve in sequence, and a bypass port of the third bypass ball valve is communicated with a control end of the third stop valve.

6. The ultra-high pressure test system according to claim 5, characterized in that: The first control circuit is arranged close to the driving gas supply device, and the second gas control branch is located at the upstream end of the first control circuit and is provided with a second pressure regulating valve.

7. The ultra-high pressure test system according to claim 4, characterized in that: The second gas-controlled branch road is provided with a first branch road, a second branch road and a third branch road in sequence; the first stop valve, the second stop valve and the third stop valve are all gas-controlled stop valves; A first valve is provided on the first branch line, one end of the first branch line is connected to the second air control branch line, and the other end of the first branch line is connected to the control end of the first stop valve; A second valve is provided on the second branch road, one end of the second branch road is connected to the second air control branch road, and the other end is connected to the control end of the second stop valve; The third branch road is provided with a third valve, one end of the third branch road is communicated with the second air control branch road, and the other end of the third branch road is communicated with the control end of the third stop valve.

8. The ultra-high pressure test system according to claim 7, characterized in that: The first valve, the second valve and the third valve are electrically controlled valves or manual valves.

9. The ultra-high pressure test system according to claim 1, characterized in that: The outlet end of the second stop valve is connected to the pressure relief pipeline.

10. The ultra-high pressure test system according to claim 1, characterized in that: The first pressure sensor and the second pressure sensor are both integrated pressure and temperature sensors.

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