CN106969887A - High pressure test device for air tightness - Google Patents
High pressure test device for air tightness Download PDFInfo
- Publication number
- CN106969887A CN106969887A CN201610328848.6A CN201610328848A CN106969887A CN 106969887 A CN106969887 A CN 106969887A CN 201610328848 A CN201610328848 A CN 201610328848A CN 106969887 A CN106969887 A CN 106969887A
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- Prior art keywords
- test
- pressure
- gas
- test device
- controller
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of high pressure test device for air tightness, it includes being used to place test specimen inside pump gas source, booster pump, controller, inflator seal and pressure test device, inflator seal；Controller is used for controlling pump source of the gas and drives booster pump to test gas boosting and be pressurized to a given threshold；Booster pump is used for test gas transport to the inside of test specimen；Pressure test device is used for the pressure value tested within the period being pressurized to after given threshold in inflator seal and transmits those pressure values to controller；Controller is used to judge in the period whether the pressure value that later moment in time is received always to be more than the pressure value that previous moment is received, if then sending the prompt message of a test specimen gas leakage.The present invention can test out test specimen exactly, and whether gas leakage, i.e. the test result degree of accuracy are high, moreover, the boost-up circuit set up realizes secondary booster so that the test gas in loop is inputted to booster pump again, reduce pressurization time.
Description
Technical field
The present invention relates to a kind of test device, more particularly to it is a kind of be used to testing test specimen such as pipeline whether gas leakage
High pressure test device for air tightness.
Background technology
Existing supercharging device is mainly by booster body into the gas source inlet of supercharger connects source of the gas, the high pressure of supercharger
Outlet is connected by pipeline with test specimen.This design structure for the test of high voltage demands, reach preset high-pressure value when
Between it is relatively long, be unfavorable for improve testing efficiency.
As shown in figure 1, existing high-voltage testing device is mainly manual control, staff in test operating procedure very
Easily compromised gases at high pressure are injured.Moreover, airtight method of testing is mainly：The pressure gauge set in observation pressure piping
1, if the numerical value of pressure gauge 1 reduces in pressure maintaining period, then show test specimen gas leakage.The shortcoming of this method of testing is：Pressure
The reduction of the reading of power table 1 can not illustrate to be test specimen in gas leakage, it may be possible to which pressure piping has gas leak phenomenon in itself
And then cause the reading of pressure gauge 1 to reduce, thus, it could be seen that existing method of testing is inaccurate.
The content of the invention
The technical problem to be solved in the present invention is to overcome high-voltage testing device of the prior art test test specimen
Whether gas leakage when the inaccurate defect of test result there is provided a kind of new high pressure test device for air tightness.
The present invention is to solve above-mentioned technical problem by following technical proposals：
The present invention provides a kind of high pressure test device for air tightness, and it includes a pump gas source and a booster pump, and its feature is,
It also includes being used to place test specimen inside a controller, an inflator seal and a pressure test device, the inflator seal；
The controller is used to control the pump gas source to drive the booster pump to test gas boosting and be pressurized to a given threshold；
The booster pump is used for the test gas transport to the inside of the test specimen；
The pressure test device is used to test in the inflator seal within the period being pressurized to after the given threshold
Pressure value simultaneously transmits those pressure values to the controller；
The controller is used to judge whether the pressure value that later moment in time is received always connects more than previous moment in the period
The pressure value received, if then sending the prompt message of the test specimen gas leakage.
,, will not gas leakage, i.e. pressure test dress if test specimen air-tightness is good in pressure maintaining period in this programme
Putting the pressure value tested out would not rise, if test specimen has gas leak phenomenon, the pressure that pressure test device is tested out
Value will rise.
It is preferred that the outlet of the booster pump is connected by one first pipeline with the entrance of the booster pump, the supercharging set up
Loop causes the test gas in loop is inputted to booster pump again to realize secondary booster, reduces the time for reaching given threshold.
It is preferred that the outlet of the booster pump is connected by a second pipe with the entrance of the test specimen, the high pressure gas
Close system safety testing device also includes a first pressure sensor；
The first pressure sensor is used to constantly detect pressure value in the second pipe, and by the pressure value detected
Transmit to controller, the controller is used to constantly compare pressure value and the given threshold that the first pressure sensor transmissions are come,
When the pressure value that the first pressure sensor transmissions are come is less than the given threshold, the controller controls the pump gas source to drive the increasing
Press pump is to the test gas boosting until the pressure value that the first pressure sensor transmissions are come reaches the given threshold.
It is preferred that the high pressure test device for air tightness also includes a valve and a unloading port；
The controller is additionally operable to the test gas for controlling the valve to be opened so that in the test specimen after that period of time
Body is flowed out by the second pipe and the valve from the unloading port.
It is preferred that the valve is magnetic valve or hand-operated valve.
It is preferred that the high pressure test device for air tightness also include one test source of the gas, the test source of the gas by the 3rd pipeline with
The inside of the inflator seal is connected.
It is preferred that the pressure test device is a second pressure sensor.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, and produce each preferable reality of the present invention
Example.
The positive effect of the present invention is：
The present invention high pressure test device for air tightness can test out exactly test specimen whether gas leakage, i.e. test result
The degree of accuracy is high, moreover, the boost-up circuit set up is so that the test gas in loop inputs to booster pump realize secondary booster again,
Reduce pressurization time.In addition, the present invention is automatically controlled by controller, it is to avoid the leakage of pressure duct gas is caused to human body
Danger, while avoiding the artificial trouble for reading pressure value.
Brief description of the drawings
Fig. 1 is the schematic diagram of high-voltage testing device of the prior art.
Fig. 2 is the schematic diagram of the high pressure test device for air tightness of present pre-ferred embodiments.
Embodiment
Provide present pre-ferred embodiments below in conjunction with the accompanying drawings, to describe technical scheme in detail, but not because
This is limited the present invention among described scope of embodiments.
As shown in Fig. 2 the present embodiment provides a kind of high pressure test device for air tightness, it includes a test source of the gas 1, a pump gas
Source 2, a booster pump 3, a controller 4 such as computer, an inflator seal 5, a second pressure sensor 6 and a unloading port 7.
Wherein, the inside of inflator seal 5 is used to place test specimen 10, and the outlet of the booster pump 3 passes through one first pipeline 8
It is connected with the entrance of the booster pump 3, the outlet of the booster pump 3 passes through the entrance phase of a second pipe 9 and the test specimen 10
Connection, the entrance of the test specimen 10 passes through the valve of second pipe 9 and one (see the magnetic valve 2 and hand-operated valve 4 in Fig. 2) and this
Unloading port 7 is connected, and a first pressure sensor 11 is provided with the second pipe 9, and the test source of the gas 1 passes through the 3rd pipeline 12
It is connected with the inside of the inflator seal 5.
Be specifically described below test test specimen whether the process of gas leakage：
Test gas transport in hand-operated valve 2 and 3 and the booster pump 3, the test source of the gas 1 is opened to the booster pump 3, the control
Device 4 processed controls the pump gas source 23 pairs of booster pump of driving test gas boosting, and the test gas transport extremely should by the booster pump 3
The inside of test specimen 10, meanwhile, the test gas in the exit of booster pump 3 enters the booster pump 3 by first pipeline 8
Entrance, reaches secondary booster, shortens pressurization time.
The first pressure sensor 11 constantly detects the pressure value in the second pipe 9, and by the pressure value detected
Transmit to controller 4, the controller 4 constantly transmits the first pressure sensor 11 in the pressure value come and the controller 4
The given threshold of storage is compared, should when the first pressure sensor 11 transmits the pressure value come less than the given threshold
Controller 4 controls the pump gas source 2 driving 3 pairs of booster pump test gas boosting until the first pressure sensor 11 transmission comes
Pressure value reach the given threshold, now, pressurization terminates, and hereafter the booster pump 3 is remained turned-off in test process, manually
Valve 3 is also switched off.
Then, the second pressure sensor 6 tests the pressure in such as 30 minutes in the inflator seal 5 in a period
Value, and those pressure values are transmitted to the controller 4.The controller 4 judges in the period whether later moment in time is received
Pressure value is always more than the pressure value that previous moment is received, if then sending the prompt message of the test specimen gas leakage, such as
A warning message or voice messaging are sent, to allow staff to recognize the test specimen gas leakage.
Test terminates rear, it is necessary to the test gas in the test specimen 10 be released, specifically, the controller 4 controls electricity
Magnet valve 2 is opened, hand-operated valve 3 is opened, and the test gas in the test specimen 10 passes through the second pipe 9 and the magnetic valve 2 from this
Unloading port 7 flows out.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (7)
1. a kind of high pressure test device for air tightness, it includes a pump gas source and a booster pump, it is characterised in that it also includes a control
It is used to place test specimen inside device processed, an inflator seal and a pressure test device, the inflator seal；
The controller is used to control the pump gas source to drive the booster pump to test gas boosting and be pressurized to a given threshold；
The booster pump is used for the test gas transport to the inside of the test specimen；
The pressure test device is used for the pressure tested within the period being pressurized to after the given threshold in the inflator seal
Value simultaneously transmits those pressure values to the controller；
The controller is used to judge whether the pressure value that later moment in time is received always is received more than previous moment in the period
Pressure value, if then sending the prompt message of the test specimen gas leakage.
2. high pressure test device for air tightness as claimed in claim 1, it is characterised in that the outlet of the booster pump passes through one first
Pipeline is connected with the entrance of the booster pump.
3. high pressure test device for air tightness as claimed in claim 1, it is characterised in that the outlet of the booster pump passes through one second
Pipeline is connected with the entrance of the test specimen, and the high pressure test device for air tightness also includes a first pressure sensor；
The first pressure sensor is used to constantly detect the pressure value in the second pipe, and the pressure value detected is transmitted
To the controller, the controller is used to constantly compare pressure value and the given threshold that the first pressure sensor transmissions are come,
When the pressure value that the first pressure sensor transmissions are come is less than the given threshold, the controller controls the pump gas source to drive the supercharging
Pump is to the test gas boosting until the pressure value that the first pressure sensor transmissions are come reaches the given threshold.
4. high pressure test device for air tightness as claimed in claim 3, it is characterised in that the high pressure test device for air tightness is also wrapped
Include a valve and a unloading port；
The test gas that the controller is additionally operable to control the valve to be opened so that in the test specimen after that period of time leads to
The second pipe and the valve is crossed to flow out from the unloading port.
5. high pressure test device for air tightness as claimed in claim 4, it is characterised in that the valve is magnetic valve or hand-operated valve.
6. high pressure test device for air tightness as claimed in claim 1, it is characterised in that the high pressure test device for air tightness is also wrapped
A test source of the gas is included, the test source of the gas is connected by the 3rd pipeline with the inside of the inflator seal.
7. high pressure test device for air tightness as claimed in claim 1, it is characterised in that the pressure test device is one second pressure
Force snesor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610328848.6A CN106969887A (en) | 2016-05-17 | 2016-05-17 | High pressure test device for air tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610328848.6A CN106969887A (en) | 2016-05-17 | 2016-05-17 | High pressure test device for air tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969887A true CN106969887A (en) | 2017-07-21 |
Family
ID=59334720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610328848.6A Pending CN106969887A (en) | 2016-05-17 | 2016-05-17 | High pressure test device for air tightness |
Country Status (1)
| Country | Link |
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| CN (1) | CN106969887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506841A (en) * | 2018-12-29 | 2019-03-22 | 武昌船舶重工集团有限公司 | Pressure-bearing trap for the water pressure test |
| CN112326148A (en) * | 2020-10-29 | 2021-02-05 | 清华大学 | High-pressure gas seals detects uses test system based on nitrogen gas pressure-fired |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281934A (en) * | 2008-05-23 | 2009-12-03 | Cosmo Instruments Co Ltd | External pressure detection type leak inspection device and leak inspection method using the same |
| CN202176477U (en) * | 2011-07-20 | 2012-03-28 | 宝山钢铁股份有限公司 | Ultrahigh water pressure supercharging system |
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN203253256U (en) * | 2013-05-21 | 2013-10-30 | 四川中方制药有限公司 | Mobile two-stage pressurizing type medicinal liquid filter |
| CN204226308U (en) * | 2014-09-26 | 2015-03-25 | 深圳市亿威仕流体控制有限公司 | A kind of ultrahigh-pressure hydraulic pressurization system |
| CN205172918U (en) * | 2015-12-01 | 2016-04-20 | 河北安米诺氨基酸科技股份有限公司 | Many pumps machine seals cooling circulation system |
| CN105547608A (en) * | 2014-11-03 | 2016-05-04 | 中国飞行试验研究院 | Apparatus for air tightness testing of airplane |
-
2016
- 2016-05-17 CN CN201610328848.6A patent/CN106969887A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281934A (en) * | 2008-05-23 | 2009-12-03 | Cosmo Instruments Co Ltd | External pressure detection type leak inspection device and leak inspection method using the same |
| CN202176477U (en) * | 2011-07-20 | 2012-03-28 | 宝山钢铁股份有限公司 | Ultrahigh water pressure supercharging system |
| CN103308254A (en) * | 2013-05-06 | 2013-09-18 | 浙江银轮机械股份有限公司 | Dry test method and dry test device for testing leak tightness of oil cooler |
| CN203253256U (en) * | 2013-05-21 | 2013-10-30 | 四川中方制药有限公司 | Mobile two-stage pressurizing type medicinal liquid filter |
| CN204226308U (en) * | 2014-09-26 | 2015-03-25 | 深圳市亿威仕流体控制有限公司 | A kind of ultrahigh-pressure hydraulic pressurization system |
| CN105547608A (en) * | 2014-11-03 | 2016-05-04 | 中国飞行试验研究院 | Apparatus for air tightness testing of airplane |
| CN205172918U (en) * | 2015-12-01 | 2016-04-20 | 河北安米诺氨基酸科技股份有限公司 | Many pumps machine seals cooling circulation system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506841A (en) * | 2018-12-29 | 2019-03-22 | 武昌船舶重工集团有限公司 | Pressure-bearing trap for the water pressure test |
| CN112326148A (en) * | 2020-10-29 | 2021-02-05 | 清华大学 | High-pressure gas seals detects uses test system based on nitrogen gas pressure-fired |
| CN112326148B (en) * | 2020-10-29 | 2022-05-13 | 清华大学 | High-pressure gas seals detects uses test system based on nitrogen gas pressure-fired |
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Application publication date: 20170721 |