CN213275175U - Vacuum relief and counter pressure fatigue test system - Google Patents
Vacuum relief and counter pressure fatigue test system Download PDFInfo
- Publication number
- CN213275175U CN213275175U CN202022073323.7U CN202022073323U CN213275175U CN 213275175 U CN213275175 U CN 213275175U CN 202022073323 U CN202022073323 U CN 202022073323U CN 213275175 U CN213275175 U CN 213275175U
- Authority
- CN
- China
- Prior art keywords
- valve
- vacuum
- flow controller
- test system
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a vacuum relief and recompression fatigue test system, including experimental container, last air inlet and the extraction opening of being provided with of experimental container, the air inlet with flow controller group and the vacuum pump group are connected respectively to the extraction opening, flow controller group link pressure regulating valve group, high pressurized air source is connected to the pressure regulating valve group. The utility model provides high production efficiency. Compared with the traditional detection mode, the vacuum relief and decompression fatigue test system has the characteristics of rapidness and convenience, can achieve higher vacuum degree, and can also control the change speed of vacuum.
Description
Technical Field
The utility model relates to a vacuum vessel detects the field, particularly, relates to a vacuum relief and recompression fatigue test system.
Background
The fatigue test of the vacuum container is an important link in the production process and also an important means for evaluating the performance of the vacuum container, wherein the selection of the material and the wall thickness of the vacuum container in the design process is always a key parameter in the actual production process. Because vacuum vessel is in the use, when required vacuum is higher, vacuum vessel's the jar body takes place to warp more easily, and vacuum vessel is under the state of warping for a long time, can produce very big influence to the intensity of jar body material, has increased the risk that the jar body breaks and reveals.
The utility model discloses before, vacuum vessel's fatigue test only carries out the evacuation through the vacuum pump to vacuum vessel usually, makes vacuum vessel resume the ordinary pressure after reaching certain vacuum, so tests repeatedly, and this kind of test method has following problem:
(1) the testing efficiency is low. The detection method is generally operated through manual control, and the efficiency is low;
(2) the detection method cannot observe the change of the vacuum degree in the test process and directly obtain the test result;
(3) the detection scheme has a single control form for the pressure rise and price reduction of the vacuum container, and accurate parameters cannot be obtained.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a vacuum relief complex pressure fatigue test system can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a vacuum relief and recompression fatigue test system, includes experimental container, last air inlet and the extraction opening of being provided with of experimental container, the air inlet with the extraction opening connects flow controller group and vacuum pump group respectively, flow controller group link pressure regulating valve group, high pressurized air source is connected to the pressure regulating valve group.
Furthermore, the vacuum pump group comprises a vacuum butterfly valve, one end of the vacuum butterfly valve is connected with a first electromagnetic valve and a second electromagnetic valve, the first electromagnetic valve is connected with a vacuum pump, the second electromagnetic valve is connected with a molecular pump, and the molecular pump is connected with a two-stage rotary vane pump.
Furthermore, the vacuum butterfly valve is connected with the first electromagnetic valve through a corrugated pipe, the vacuum butterfly valve is connected with the second electromagnetic valve through a corrugated pipe, and the molecular pump is connected with the double-stage rotary vane pump through a corrugated pipe.
Further, the vacuum pump is connected with a frequency converter.
Furthermore, the flow controller group comprises a first filter, the first filter is connected with a first flow controller, a second flow controller and a third flow controller, the first flow controller, the second flow controller and the third flow controller are converged and connected with a third electromagnetic valve and a fourth electromagnetic valve, the third electromagnetic valve is connected with the air inlet, and the fourth electromagnetic valve is connected with a pressure relief port.
Further, the first filter is connected with a fifth electromagnetic valve, and the fifth electromagnetic valve is connected with the air inlet.
Further, the pressure regulating valve group comprises a second filter, the second filter is sequentially connected with a pressure reducing valve, an electric proportional valve and a sixth electromagnetic valve, and the sixth electromagnetic valve is connected with the first filter.
Further, a first pressure transmitter is arranged between the second filter and the pressure reducing valve.
Further, a pressure gauge and a safety valve are arranged between the pressure reducing valve and the electric proportional valve.
Further, a second pressure transmitter is arranged between the electric proportional valve and the sixth electromagnetic valve.
The utility model has the advantages that:
(1) the utility model provides high production efficiency. Compared with the traditional detection mode, the vacuum relief and decompression fatigue test system has the characteristics of rapidness and convenience, can achieve higher vacuum degree, and can also control the change speed of vacuum.
(2) The utility model discloses control mode is nimble. When the system is used for carrying out a relief and back pressure test, three control forms can be selected, and the selection can be carried out according to the volumes of different vacuum containers and the test requirements.
(3) The utility model discloses system self embeds safety device, if the output superpressure, can open the release automatically.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a vacuum relief fatigue test system.
In the figure: 1. the system comprises a vacuum pump, 2, a vacuum butterfly valve, 3, a first electromagnetic valve, 4, a second electromagnetic valve, 5, a molecular pump, 6, a double-stage rotary vane pump, 7, a frequency converter, 8, a first filter, 9, a first flow controller, 10, a second flow controller, 11, a third flow controller, 12, a third electromagnetic valve, 13, a fourth electromagnetic valve, 14, a fifth electromagnetic valve, 15, a second filter, 16, a pressure reducing valve, 17, an electric proportional valve, 18, a sixth electromagnetic valve, 19, a first pressure transmitter, 20, a pressure gauge, 21, a safety valve and 22, and a second pressure transmitter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in FIG. 1, according to the utility model discloses a vacuum relief and recompression fatigue test system, including experimental container, be provided with air inlet and extraction opening on the experimental container, the air inlet with flow controller group and vacuum pump group are connected respectively to the extraction opening, flow controller group link pressure regulating valve group, high pressurized air source is connected to pressure regulating valve group.
In a specific embodiment of the utility model, the vacuum pump group includes vacuum butterfly valve 2, first solenoid valve 3 and second solenoid valve 4 are connected to the one end of vacuum butterfly valve 2, vacuum pump 1 is connected to first solenoid valve 3, molecular pump 5 is connected to second solenoid valve 4, doublestage rotary vane pump 6 is connected to molecular pump 5.
In a specific embodiment of the present invention, the vacuum butterfly valve 2 and the first electromagnetic valve 3 are connected by a bellows, the vacuum butterfly valve 2 and the second electromagnetic valve 4 are connected by a bellows, and the molecular pump 5 and the two-stage rotary vane pump 6 are connected by a bellows.
In a specific embodiment of the present invention, the vacuum pump 1 is connected to a frequency converter 7.
In a specific embodiment of the present invention, the flow controller set includes a first filter 8, the first filter 8 connects a first flow controller 9, a second flow controller 10 and a third flow controller 11, the first flow controller 9, the second flow controller 10 and the third flow controller 11 converge and connect a third electromagnetic valve 12 and a fourth electromagnetic valve 13, the third electromagnetic valve 12 connects the air inlet, and the fourth electromagnetic valve 13 connects the pressure relief port.
In a specific embodiment of the present invention, the first filter 8 is connected to a fifth solenoid valve 14, and the fifth solenoid valve 14 is connected to the air inlet.
In a specific embodiment of the present invention, the pressure regulating valve set includes a second filter 15, the second filter 15 connects a pressure reducing valve 16, an electric proportional valve 17 and a sixth electromagnetic valve 18 in sequence, and the sixth electromagnetic valve 18 connects the first filter 8.
In a specific embodiment of the present invention, a first pressure transmitter 19 is disposed between the second filter 15 and the pressure reducing valve 16.
In a specific embodiment of the present invention, a pressure gauge 20 and a safety valve 21 are disposed between the pressure reducing valve 16 and the electric proportional valve 17.
In a specific embodiment of the present invention, a second pressure transmitter 22 is disposed between the electric proportional valve 17 and the sixth electromagnetic valve 18.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.
When specifically using, according to the utility model discloses a vacuum pressure relief and recovery fatigue test system, the system pressure relief and recovery test adopts vacuum pump 1, molecular pump 5, doublestage rotary vane pump 6, vacuum butterfly valve 2, flow controller group etc. as experimental core equipment, the vacuum pump 1 can control the speed of evacuation with vacuum butterfly valve 2, flow controller group can control the tonifying qi volume, molecular pump 5 and the supporting use of doublestage rotary vane pump 6 for improve the vacuum of experimental work piece, these products work in coordination, can realize the experimental multiple mode of operation of pressure relief and recovery.
The electric control system takes the PLC as a system control means and writes corresponding control software (written by Labview) to control the whole test process.
An input air source of the system is 15Mpa compressed air, impurities in the compressed air are filtered through a second filter 15 at an inlet, the cleanness in a system pipeline is guaranteed, and the filtering precision is 7 u; the medium is decompressed to 1Mpa through a decompression valve 16, the data is read through a configured pressure gauge 20 and a sensor, and the medium is adjusted to the pressure required by the test through an electric proportional valve 17.
In the pressure relief and pressure recovery fatigue test, the control of the vacuumizing rate of a test workpiece is realized by controlling the frequency converter 7 of the vacuum pump 1, so that the pressure drop rate is controlled, in the pressure relief and pressure recovery test process, because the vacuum degree of the vacuum pump 1 is limited, the combination mode of 1 molecular pump 5+1 double-stage rotary vane pump 6 is selected and matched to realize the high vacuumizing of the test workpiece, and the vacuum gauge is used for realizing the real-time measurement and feedback of the vacuumizing pressure. The vacuum butterfly valve 2 can freely adjust the opening of the vacuum pumping pipeline, thereby controlling the pumping speed of the vacuum pump 1 and realizing the control of the pressure drop speed. When the vacuum pump works, the 3 flow controllers compensate the condition of overlarge air suction rate of the vacuum pump by controlling air supply, so that the control of the pressure reduction rate is realized. The system is equipped with high precision pressure transducers and vacuum gauges to monitor product pressure and evacuation pressure in real time. The electric control system monitors and judges the pressure of each instrument, and sends a normal or abnormal signal to the PLC, if the signal received by the PLC is abnormal, the system makes an abnormal processing operation, and simultaneously the indicator lamp gives an alarm.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a vacuum relief and recompression fatigue test system, includes test container, its characterized in that, last air inlet and the extraction opening of being provided with of test container, the air inlet with the extraction opening is connected flow controller group and vacuum pump group respectively, flow controller group link pressure regulating valve group, pressure regulating valve group connects high pressurized air source.
2. The vacuum relief and recovery pressure fatigue test system according to claim 1, wherein the vacuum pump set comprises a vacuum butterfly valve (2), one end of the vacuum butterfly valve (2) is connected with a first electromagnetic valve (3) and a second electromagnetic valve (4), the first electromagnetic valve (3) is connected with the vacuum pump (1), the second electromagnetic valve (4) is connected with the molecular pump (5), and the molecular pump (5) is connected with the two-stage rotary vane pump (6).
3. The vacuum relief and recompression fatigue test system as claimed in claim 2, wherein said vacuum butterfly valve (2) is connected to said first solenoid valve (3) via a bellows, said vacuum butterfly valve (2) is connected to said second solenoid valve (4) via a bellows, and said molecular pump (5) is connected to said two-stage rotary vane pump (6) via a bellows.
4. Vacuum relief fatigue test system according to claim 3, wherein said vacuum pump (1) is connected to a frequency converter (7).
5. The vacuum relief and recompression fatigue test system of claim 4, wherein the flow controller set comprises a first filter (8), the first filter (8) is connected with a first flow controller (9), a second flow controller (10) and a third flow controller (11), the first flow controller (9), the second flow controller (10) and the third flow controller (11) are converged and connected with a third electromagnetic valve (12) and a fourth electromagnetic valve (13), the third electromagnetic valve (12) is connected with the air inlet, and the fourth electromagnetic valve (13) is connected with a pressure relief port.
6. The vacuum relief and decompression fatigue test system according to claim 5, wherein the first filter (8) is connected with a fifth solenoid valve (14), and the fifth solenoid valve (14) is connected with the air inlet.
7. The vacuum relief and recompression fatigue testing system of claim 6, wherein the pressure regulating valve set comprises a second filter (15), the second filter (15) is connected with a pressure reducing valve (16), an electric proportional valve (17) and a sixth solenoid valve (18) in sequence, and the sixth solenoid valve (18) is connected with the first filter (8).
8. Vacuum relief fatigue test system according to claim 7, wherein a first pressure transmitter (19) is arranged between said second filter (15) and said pressure reducing valve (16).
9. The vacuum relief fatigue test system of claim 8, wherein a pressure gauge (20) and a safety valve (21) are provided between the pressure reducing valve (16) and the electric proportional valve (17).
10. The vacuum relief complex pressure fatigue test system of claim 9, characterized in that a second pressure transmitter (22) is arranged between the electric proportional valve (17) and the sixth solenoid valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022073323.7U CN213275175U (en) | 2020-09-21 | 2020-09-21 | Vacuum relief and counter pressure fatigue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022073323.7U CN213275175U (en) | 2020-09-21 | 2020-09-21 | Vacuum relief and counter pressure fatigue test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213275175U true CN213275175U (en) | 2021-05-25 |
Family
ID=75944757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022073323.7U Active CN213275175U (en) | 2020-09-21 | 2020-09-21 | Vacuum relief and counter pressure fatigue test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213275175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098224A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Vacuum relief and counter pressure fatigue test system |
-
2020
- 2020-09-21 CN CN202022073323.7U patent/CN213275175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098224A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Vacuum relief and counter pressure fatigue test system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323158B (en) | High pressure safety valve detection system | |
| CN108151984B (en) | Cigarette package tightness detection device | |
| CN213275175U (en) | Vacuum relief and counter pressure fatigue test system | |
| CN203519254U (en) | Detection apparatus and system for pressure sensor | |
| CN109341979A (en) | Nitrogen and helium leak check system | |
| CN107917798A (en) | The test system and test method of pneumatic proportional pressure valve | |
| CN111122069A (en) | Dynamic test system for turbine oxygen pump of engine | |
| CN206787778U (en) | Valve gas cylinder test device for air tightness | |
| CN112098224A (en) | Vacuum relief and counter pressure fatigue test system | |
| CN209624684U (en) | A kind of 400MPa extra-high simple loading unit | |
| CN201522362U (en) | Soft packaging bag pressure safety detector | |
| CN112228304B (en) | Air charging and discharging system | |
| CN107305175A (en) | The automation test of gas pressure device of pipe container | |
| CN207486449U (en) | One kind can be used for laboratory airline pressure on-line intelligence monitoring device | |
| CN214092559U (en) | Hydraulic product pulse dynamic characteristic test system | |
| CN201145289Y (en) | Air door baffle plate pneumatic actuating mechanism control device | |
| CN210774651U (en) | Gas fatigue test equipment for gas cylinder | |
| EP3553490A1 (en) | Dual-mode pressure reducer | |
| CN202091782U (en) | Lossless condensed water discharge apparatus for compressed air | |
| CN209265287U (en) | A kind of quick loading device of 400MPa extra-high | |
| CN204101249U (en) | The airtight pilot system of 70MPa high pressure | |
| CN217276742U (en) | Integrated glove leak detector for isolator | |
| CN218271343U (en) | Hydrogen fatigue burst test device for small-volume workpiece | |
| CN220960424U (en) | Airplane inflation pressure detecting device | |
| CN220251293U (en) | High-flow sealing instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |