CN213275211U - Container negative pressure fatigue test device - Google Patents
Container negative pressure fatigue test device Download PDFInfo
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- CN213275211U CN213275211U CN202021622571.6U CN202021622571U CN213275211U CN 213275211 U CN213275211 U CN 213275211U CN 202021622571 U CN202021622571 U CN 202021622571U CN 213275211 U CN213275211 U CN 213275211U
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- container
- electromagnetic valve
- way electromagnetic
- vacuum
- pump
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A negative pressure fatigue test device for a container belongs to the technical field of pressure container detection. The device comprises a three-way electromagnetic valve and a control console, wherein the three-way electromagnetic valve is connected to a container to be tested by a container vent pipe and a container vacuum joint, and a pressure gauge is arranged on the container vent pipe; the second channel is connected with an air source by an air source inflation tube; the third way is connected to a vacuum pump by a pump exhaust pipe and a pump vacuum joint; the control console controls the on-off of the pressure gauge, the three-way electromagnetic valve and the vacuum pump, and the to-be-detected container is inflated and exhausted to detect the negative pressure fatigue circulation capacity of the to-be-detected container. The whole device is simple and efficient by taking air inlet, vacuum pumping and pressure maintaining as a fatigue cycle. The device simple structure adopts automated control, has realized aerifing, the automatic linking of process of bleeding, can satisfy the negative pressure fatigue test of container.
Description
Technical Field
The utility model relates to a container negative pressure fatigue test device belongs to pressure vessel and detects technical field.
Background
Pressure vessels have become common in daily life and industrial production, and many of them often have negative pressure during use, which provides new test for the requirements of the vessels. These containers may become unstable under negative pressure conditions and even frequent pressure changes may cause fatigue cracks in the containers, causing unpredictable accidents, property damage and personal injury. In response to this situation, a container negative pressure fatigue test device has been proposed for detecting whether or not these containers can cope with the occurring negative pressure condition.
Disclosure of Invention
For solving the problem that exists among the prior art, the utility model provides a container negative pressure fatigue test device to whether the detection container can satisfy the safety work under having the negative pressure, just bearing the negative pressure repeatedly.
The utility model adopts the technical proposal that: a container negative pressure fatigue test device comprises an air source, a container to be tested and a three-way electromagnetic valve, wherein the first way of the three-way electromagnetic valve is connected to the container to be tested by a container vent pipe and a container vacuum joint, and the container vent pipe is provided with a pressure gauge; the second passage of the three-way electromagnetic valve is connected with an air source by an air source inflation tube; the third joint of the three-way electromagnetic valve is connected to the vacuum pump by adopting a pump exhaust pipe and a pump vacuum joint; the device also comprises a control console, and the pressure gauge, the three-way electromagnetic valve and the vacuum pump are electrically connected with the control console.
The device comprises an air source inflation system, a vacuum air pumping system, a program control system, a pipeline accessory and the like. And the three-way electromagnetic valve is controlled by the console, the gas source inflation tube is opened, and gas in the gas source enters the container to be tested through the three-way electromagnetic valve and the container vacuum joint. When the pressure gauge reaches the specified pressure, the signal is transmitted to the console, the three-way electromagnetic valve is controlled to close the gas source inflation tube, and the pump exhaust tube is opened. And simultaneously, the console opens the vacuum pump, and the gas in the container to be tested is exhausted out of the system through the container vacuum joint, the three-way electromagnetic valve and the pump vacuum joint. When the pressure gauge reaches a specified negative pressure value, a signal is transmitted to the console, the three-way electromagnetic valve is controlled to close the pump exhaust pipe, the vacuum pump is closed, and pressure maintaining is carried out for a certain time. The above is a cycle of negative pressure fatigue, and the next round is carried out by adopting the same control through the console. And circulating for corresponding times according to the use requirement of the container, and finishing the test when the console reaches the corresponding set circulation times.
The utility model has the advantages that: the device comprises a three-way electromagnetic valve and a console, wherein a first general way adopts a container vent pipe and a container vacuum joint to be connected to a container to be tested, and the container vent pipe is provided with a pressure gauge; the second channel is connected with an air source by an air source inflation tube; the third way is connected to a vacuum pump by a pump exhaust pipe and a pump vacuum joint; the control console controls the on-off of the pressure gauge, the three-way electromagnetic valve and the vacuum pump, and the to-be-detected container is inflated and exhausted to detect the negative pressure fatigue circulation capacity of the to-be-detected container. The whole device is simple and efficient by taking air inlet, vacuum pumping and pressure maintaining as a fatigue cycle. The device simple structure adopts automated control, has realized aerifing, the automatic linking of process of bleeding, can satisfy the negative pressure fatigue test of container.
Drawings
Fig. 1 is a negative pressure fatigue test device for a container.
In the figure: 1. the device comprises a container to be tested, 1a, a container vent pipe, 2, a container vacuum connector, 3, a pressure gauge, 4, a three-way electromagnetic valve, 4a, a first channel, 4b, a second channel, 4c, a third channel, 5, a vacuum pump, 5a, a pump exhaust pipe, 6, a console, 7, a pump vacuum connector, 8, an air source, 8a and an air source inflation pipe.
Detailed Description
FIG. 1 is a container negative pressure fatigue test device, which comprises an air source 8 and a container 1 to be tested, and further comprises a three-way electromagnetic valve 4, wherein a first channel 4a of the three-way electromagnetic valve 4 is connected to the container 1 to be tested by a container vent pipe 1a and a container vacuum joint 2, and a pressure gauge 3 is arranged on the container vent pipe 1 a; the second channel 4b of the three-way electromagnetic valve 4 is connected with an air source 8 by an air source inflation tube 8 a; a third tee joint 4c of the three-way electromagnetic valve 4 is connected to the vacuum pump 5 by a pump exhaust pipe 5a and a pump vacuum joint 7; the device also comprises a control console 6, and the pressure gauge 3, the three-way electromagnetic valve 4 and the vacuum pump 5 are electrically connected with the control console 6. The gas passes through the three-way electromagnetic valve 4 from the gas source 8 through the gas source inflation tube 8a, then enters the container vent tube 1a, and then enters the container 1 to be tested through the container vacuum joint 2. Gas in the container 1 to be tested enters the container vent pipe 1a through the container vacuum connector 2 by virtue of the vacuum pump 5, then enters the pump exhaust pipe 5a through the three-way electromagnetic valve 4, and is exhausted after passing through the pump vacuum connector 7. The inflation and air exhaust processes are realized by automatically controlling the three-way electromagnetic valve 4 and the vacuum pump 5 through the control console 6, and the pressure gauge 3 is used for detecting the inflation and air exhaust processes.
After the whole device is debugged, the pipeline has no leakage, and the equipment is intact, the vacuum fatigue test is carried out. The three-way electromagnetic valve 4 is controlled to be opened and closed through the console 6, the three-way electromagnetic valve 4 is communicated with the gas source inflation tube 8a and the container ventilation tube 1a, so that the gas source 8 is communicated with the container 1 to be detected, gas with certain pressure is filled into the container 1 to be detected through the three-way electromagnetic valve 4 and the container vacuum connector 2, the pressure in the container 1 to be detected reaches a pressure monitoring value, the console 6 automatically records the value of the pressure gauge 3, and when the pressure upper limit threshold value of the container 1 to be detected is set, the gas source 8 is automatically closed, and the gas source inflation tube.
When the pressure stabilization duration reaches a set time value, the console 6 controls the three-way electromagnetic valve 4 to open the first through 4a and the third through 4c, and the console 6 automatically opens the vacuum pump 5. The gas in the container 1 to be tested is exhausted out of the device through the container vacuum joint 2, the container vent pipe 1a, the three-way electromagnetic valve 4, the pump exhaust pipe 5a, the pump vacuum joint 7 and the vacuum pump 5, so that the purpose of exhausting the gas in the container 1 to be tested is achieved. When the pressure in the container 1 to be detected is reduced to a value to be monitored, the control console 6 automatically monitors the value of the pressure gauge 3, and when the pressure reaches a set pressure lower limit threshold value, the vacuum pumping pipeline is automatically closed.
The whole process of air inflation and vacuum air exhaust of the air source is automatically recorded as a fatigue process by the console 6, the next process is automatically started after the fatigue process is finished, and the whole device flow is automatically finished by the system after the set detection times are reached. Wherein, the upper and lower limit threshold values of the pressure, the pressure stabilizing time, the fatigue times and the like are all set in the console according to the actual situation.
Claims (1)
1. The utility model provides a container negative pressure fatigue test device, it includes air supply (8) and awaits measuring container (1), its characterized in that: the device also comprises a three-way electromagnetic valve (4), wherein a first channel (4 a) of the three-way electromagnetic valve (4) is connected to the container (1) to be tested by adopting a container vent pipe (1 a) and a container vacuum joint (2), and a pressure gauge (3) is arranged on the container vent pipe (1 a); a second passage (4 b) of the three-way electromagnetic valve (4) is connected with an air source (8) by an air source inflation tube (8 a); a third tee joint (4 c) of the three-way electromagnetic valve (4) is connected to the vacuum pump (5) by a pump exhaust pipe (5 a) and a pump vacuum joint (7); the device also comprises a control console (6), and the pressure gauge (3), the three-way electromagnetic valve (4) and the vacuum pump (5) are electrically connected with the control console (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622571.6U CN213275211U (en) | 2020-08-07 | 2020-08-07 | Container negative pressure fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622571.6U CN213275211U (en) | 2020-08-07 | 2020-08-07 | Container negative pressure fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213275211U true CN213275211U (en) | 2021-05-25 |
Family
ID=75969917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021622571.6U Active CN213275211U (en) | 2020-08-07 | 2020-08-07 | Container negative pressure fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213275211U (en) |
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2020
- 2020-08-07 CN CN202021622571.6U patent/CN213275211U/en active Active
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