CN208635983U - Detection device for class air seal leakage rate - Google Patents
Detection device for class air seal leakage rate Download PDFInfo
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- CN208635983U CN208635983U CN201821326097.5U CN201821326097U CN208635983U CN 208635983 U CN208635983 U CN 208635983U CN 201821326097 U CN201821326097 U CN 201821326097U CN 208635983 U CN208635983 U CN 208635983U
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- pressure
- leakage rate
- air seal
- blower
- pressure passageway
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Abstract
A kind of detection device for class air seal leakage rate, including blower, frequency converter, PLC and pressure sensor, the blower and for air seal leakage rate detection by between the test specimen of side be equipped with first for pressure passageway, second for pressure passageway and third for pressure passageway, described first to third for being equipped on pressure passageway for opening or closing the corresponding hand-operated valve for pressure pipeline, described first is equipped with micro-flowmeter for the upper front end in corresponding hand-operated valve of pressure passageway, and the third is equipped with large capacity meter for the upper front end in corresponding hand-operated valve of pressure passageway；Described to be equipped with static tube by side test specimen, the pressure sensor is located on the static tube；The PLC is electrically connected with frequency converter, pressure sensor, micro-flowmeter and large capacity meter respectively, the frequency converter is electrically connected to control and adjust the output pressure of blower with blower, the utility model adjusts rotation speed of fan using frequency converter to adjust pressure output, without manually adjusting, realize automatic control, facilitate operation, and boosts and stablize.
Description
Technical field
The utility model relates to gas tightness testing machine fields, and in particular to a kind of inspection for class air seal leakage rate
Device is surveyed, with the airtight performance experimental test to protective door in Civil Air Defense Facilities.
Background technique
Civil air defense constructions and installations safeguard need to carry out airtight performance special project experimental test and conventional detection and be used in the prior art
The equipment of civil air defense constructions and installations protection mainly has: protective door, airtight blast door, sealed door, explosion wave prevention active door, over-pressure release etc.
Deng.
Currently, being usually to use air compressor machine as pressure source, and pass through for the closed detection of the safeguard of civil air defense constructions and installations
Manual needle valve adjusts amount of opening size and adjusts tolerance, to adjust the pressure value of test gate, then by tilting micromanometer come
Pressure value is shown, however, the testing agency has the following disadvantages:
1) air compressor machine is as pressure source, bulky, high noise, and pressure transient influences testing result；
2) manual needle valve is as pressure valve, and cumbersome, pressure control is unstable, is not easy to operate；
3) tilting micromanometer shows pressure value, and volume is big, and movement is inconvenient, easy to damage.
Utility model content
The utility model in order to solve the above problems existing in the present technology, provides one kind and lets out for class air seal
The detection device of leakage quantity, the airtightness detection device to solve to be currently used for civil air defense constructions and installations safeguard use air compressor machine as pressure
Power source, due to pressure transient, the problems such as influencing testing result and pressure control is unstable, be not easy to operation.
To achieve the above object, the utility model provides the detection device for class air seal leakage rate, including
Blower, frequency converter, PLC and pressure sensor, the blower and being set between the test specimen of side for the detection of air seal leakage rate
There is first to be used for for pressure passageway, described first to third for being equipped on pressure passageway for pressure passageway, second for pressure passageway and third
The corresponding hand-operated valve for pressure pipeline is opened or closed, described first is equipped with miniflow for the upper front end in corresponding hand-operated valve of pressure passageway
Meter, the third are equipped with large capacity meter for the upper front end in corresponding hand-operated valve of pressure passageway；It is described by side test specimen be equipped with it is quiet
Pressure pipe, the pressure sensor are located on the static tube；The PLC respectively with frequency converter, pressure sensor, micro-flowmeter and
Large capacity meter electrical connection, the frequency converter are electrically connected to control and adjust the output pressure of blower with blower.
As the further preferred technical solution of the utility model, the described first input terminal for pressure passageway, the second pressure supply
The input terminal in channel and third for the input terminal of pressure passageway be in parallel together with to form input terminal in parallel, the parallel connection input terminal
It is connected between blower using a short corrugated pipe.
As the further preferred technical solution of the utility model, the described first output end for pressure passageway, the second pressure supply
The output end in channel and third for the output end of pressure passageway be in parallel together with to form parallel outputs, the parallel outputs
With by between the test specimen of side use a root long bellows be connected.
As the further preferred technical solution of the utility model, described by side test specimen is that need to detect air-tightness and airtight let out
The class facility of leakage quantity.
As the further preferred technical solution of the utility model, the micro-flowmeter is L-type nozzle, the large capacity meter
For H-type nozzle.
As the further preferred technical solution of the utility model, computer is also connected on the PLC.
The class air seal leakage amount detector of the utility model by using above-mentioned technical proposal, can achieve as
It is lower the utility model has the advantages that
1) volume, weight etc. can be reduced as pressure source using blower.
2) rotation speed of fan is adjusted using frequency converter to adjust pressure output, without manually adjusting, realizes automatic control, side
Just it operates, boosting is stablized.
3) it is adjusted using frequency converter, blower output pressure is stablized, and no pressure overshoot phenomenon avoids manual maloperation from endangering
Danger.
4) the double fluid gauge manual switching mode combined using micro-flowmeter with large capacity meter, easy to operate, flow covers
Capping is wide.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram for the example that the utility model class air seal leakage amount detector provides.
In figure: 1, frequency converter, 2, PLC, 3, computer, 4, blower, 5, micro-flowmeter, 6, large capacity meter, 7, hand-operated valve, 8, pressure
Force snesor, 9, by side test specimen.
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, the utility model is described further.In preferred embodiment
Cited such as "upper", "lower", "left", "right", " centre " and " one " term, only being illustrated convenient for narration, rather than to
The enforceable range of the utility model is limited, relativeness is altered or modified, under the content of no substantial changes in technology, when also
It is considered as the enforceable scope of the utility model.
As shown in Figure 1, class air seal leakage amount detector includes blower 4, frequency converter 1, PLC2 and pressure sensing
Device 8, the blower 4 and being equipped with first for pressure passageway, the second pressure supply between side test specimen 9 for the detection of air seal leakage rate
Channel and third are corresponding for pressure pipeline for opening or closing for being equipped on pressure passageway for pressure passageway, described first to third
Hand-operated valve 7, described first is equipped with micro-flowmeter 5 for the upper front end in corresponding hand-operated valve 7 of pressure passageway, and the third is for pressure passageway
The upper front end for being located at corresponding hand-operated valve 7 is equipped with large capacity meter 6；It is described that static tube, the pressure sensor are equipped with by side test specimen 9
8 are located on the static tube；The PLC2 is electrically connected with frequency converter 1, pressure sensor 8, micro-flowmeter 5 and large capacity meter 6 respectively
It connects, the frequency converter 1 is electrically connected to control and adjust the output pressure of blower 4 with blower 4.
In specific implementation, described first for pressure passageway input terminal, second logical for the input terminal of pressure passageway and third pressure supply
The input terminal in road is in parallel together to form input terminal in parallel, uses a shortwave between the parallel connection input terminal and blower 4
Line pipe is connected, described first for pressure passageway output end, second for pressure passageway output end and third for pressure passageway output
End is in parallel together to form parallel outputs, the parallel outputs and a root long bellows is used between side test specimen 9
It is connected.
In specific implementation, described by side test specimen 9 is the class facility that need to detect air-tightness and airtight leakage rate, which sets
It applies including protective door, airtight blast door, sealed door, explosion wave prevention active door and over-pressure release.
In specific implementation, the micro-flowmeter 5 is L-type nozzle, and the large capacity meter 6 is H-type nozzle.
In specific implementation, it is also connected with computer 3 on the PLC2, in use process, micro-flowmeter 5 and large capacity meter 6 can
Real-time data collection, and feed back and arrive PLC2, PLC2 is fed back again on computer 3, and the song of pressure and flow is shown by computer 3
Line, to be used to judging whether test specimen is qualified.
The workflow and control mode of the class air seal leakage amount detector of the utility model are as follows:
In use process, it will test device and be connected on test specimen by lengthy bellows, convert hand-operated valve 7, selection stream
Meter type；It can be carried out according to the pressure of 8 Real-time Feedback of target pressure value and pressure sensor of setting after detection device operation
Then judgement constantly adjusts 4 revolving speed of blower by frequency converter 1, equal with goal pressure to control and reach current pressure
Function；Micro-flowmeter 5 and large capacity meter 6 constantly acquire data, and feed back and arrive PLC2, and PLC2 is fed back again on computer 3, with aobvious
Show the curve of pressure and flow, for judging whether test specimen is qualified.
Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model
Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the original of the utility model
Reason and essence, the protection scope of the utility model are only limited by the claims that follow.
Claims (6)
1. being used for the detection device of class air seal leakage rate, which is characterized in that passed including blower, frequency converter, PLC and pressure
Sensor, the blower and being equipped with first for pressure passageway, the second pressure supply between the test specimen of side for the detection of air seal leakage rate
Channel and third are corresponding for pressure passageway for opening or closing for being equipped on pressure passageway for pressure passageway, described first to third
Hand-operated valve, described first is equipped with micro-flowmeter for the upper front end in corresponding hand-operated valve of pressure passageway, and the third is on pressure passageway
Front end positioned at corresponding hand-operated valve is equipped with large capacity meter；Described to be equipped with static tube by side test specimen, the pressure sensor is located at
On the static tube；The PLC is electrically connected with frequency converter, pressure sensor, micro-flowmeter and large capacity meter respectively, the frequency conversion
Device is electrically connected to control and adjust the output pressure of blower with blower.
2. the detection device of class air seal leakage rate according to claim 1, which is characterized in that first pressure supply
The input terminal in channel, second for pressure passageway input terminal and third for the input terminal of pressure passageway be in parallel together with to form parallel connection
Input terminal is connected between the parallel connection input terminal and blower using a short corrugated pipe.
3. the detection device of class air seal leakage rate according to claim 2, which is characterized in that first pressure supply
The output end in channel, second for pressure passageway output end and third for the output end of pressure passageway be in parallel together with to form parallel connection
Output end, the parallel outputs with by between the test specimen of side use a root long bellows be connected.
4. the detection device of class air seal leakage rate according to claim 3, which is characterized in that described by side test specimen
For the class facility that need to detect air-tightness and airtight leakage rate.
5. the detection device of class air seal leakage rate according to claim 4, which is characterized in that the micro-flowmeter
For L-type nozzle, the large capacity meter is H-type nozzle.
6. the detection device of class air seal leakage rate according to any one of claims 1 to 5, which is characterized in that institute
It states and is also connected with computer on PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326097.5U CN208635983U (en) | 2018-08-16 | 2018-08-16 | Detection device for class air seal leakage rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326097.5U CN208635983U (en) | 2018-08-16 | 2018-08-16 | Detection device for class air seal leakage rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635983U true CN208635983U (en) | 2019-03-22 |
Family
ID=65743230
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821326097.5U Active CN208635983U (en) | 2018-08-16 | 2018-08-16 | Detection device for class air seal leakage rate |
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| Country | Link |
|---|---|
| CN (1) | CN208635983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
-
2018
- 2018-08-16 CN CN201821326097.5U patent/CN208635983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816155A (en) * | 2021-03-01 | 2021-05-18 | 张锦峰 | Portable overpressure-preventing exhaust valve tightness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201228 Address after: 510000 building 3, No. 901-3, Guangyuan Middle Road, Jingtai street, Baiyun District, Guangzhou City, Guangdong Province Patentee after: Guangdong Civil Air Defense Engineering Quality Inspection Co.,Ltd. Address before: No. 901, Guangyuan Middle Road, Guangzhou, Guangdong 510000 Patentee before: GUANGDONG CIVIL DEFENSE ASSOCIATION |
|
| TR01 | Transfer of patent right |