CN110307951A - Dry type leakage detecting apparatus and dry type leak hunting method - Google Patents
Dry type leakage detecting apparatus and dry type leak hunting method Download PDFInfo
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- CN110307951A CN110307951A CN201910676125.9A CN201910676125A CN110307951A CN 110307951 A CN110307951 A CN 110307951A CN 201910676125 A CN201910676125 A CN 201910676125A CN 110307951 A CN110307951 A CN 110307951A
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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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
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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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3263—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 containers, e.g. radiators by monitoring the interior space of the containers using a differential pressure detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
This application involves leakage test technical fields, more particularly to a kind of dry type leakage detecting apparatus and dry type leak hunting method, it include: leak detector, at least two comparison chambers and at least two switch valves, the quantity of the comparison chamber is identical as the quantity of the switch valve, the leak detector has normal end, each comparison chamber connects one to one with each switch valve, and each switch valve is connect with the normal end.When the application is able to solve to continuous multiple intercoolers progress dry testings, comparison chamber temperature increases the technical problem for leading to test result inaccuracy.
Description
Technical field
This application involves leakage test technical field more particularly to a kind of dry type leakage detecting apparatus and dry type leak hunting method.
Background technique
The sealing propertytest of existing intercooler has ability of swimming test method and two kinds of dry testing method, wherein dry testing
Method is that the test lead of leak detector is made to be connected with the comparison chamber that normal end is not revealed with intercooler and theoretically respectively, compression
Air is docked with leak detector air inlet port, controls test lead and normal end simultaneously to intercooler and right by valve inside leak detector
Than the compressed air for being filled with authorized pressure in chamber, intercooler is connected to comparison chamber by leak detector, after the balance of certain time
Balanced valve in leak detector separates intercooler and comparison chamber, by the differential pressure pickup of dry type leak detector determine intercooler with it is right
Determined than the pressure difference between chamber intercooler whether leakage and leakage rate.
When dry testing need to be carried out to continuous multiple intercoolers, after the completion of first intercooler is hunted leak, chamber is compared
Temperature is since the effect of air pressure can be increased, and when hunting leak to second intercooler, compare the temperature of chamber and second
The temperature of intercooler will be different, since temperature can have an impact air pressure, after intercooler is separated with comparison chamber by balanced valve,
Comparing chamber can cause its air pressure inside to change, and then make differential pressure pickup institute since the temperature of its own is by height reduction
Collected is not accurate data, and whether the intercooler for being unable to judge accurately second intercooler and continuously detecting below is let out
Leakage.
Summary of the invention
The application's is designed to provide a kind of dry type leakage detecting apparatus and dry type leak hunting method, with solve to it is continuous it is multiple in
When cooler carries out dry testing, comparison chamber temperature increases the technical problem for leading to test result inaccuracy.
To achieve the goals above, the application uses following technical scheme:
The one aspect of the application provides a kind of dry type leakage detecting apparatus, comprising: leak detector, at least two comparison chambers and at least
Two switch valves, each comparison chamber connect one to one with each switch valve, and the leak detector has normal end, and each institute
Switch valve is stated to connect with the normal end respectively.
Preferably, the comparison chamber and the switch valve it is equal there are three.
The beneficial effect of the technical solution is: when using three comparison chambers, each chamber that compares uses in turn, and it is each right to make
Than two test periods that can all leave unused after chamber use, making to compare chamber has enough but not too long cooling times, improves pair
Than the utilization rate of chamber, reduces the manufacturing cost of dry type leakage detecting apparatus and take up space, the above-mentioned test period refers to completion one
Time needed for secondary gas leakage detection.
Preferably, including the pressure sensor for being mounted at the air outlet of measured piece, the pressure sensor with
The leak detector communication connection；The pressure sensor is used to measure the atmospheric pressure value at the air outlet of measured piece.
The beneficial effect of the technical solution is: by the pressure sensor, can measure the gas of measured piece air outlet
Pressure value, and then determine whether measured piece blocks.
Preferably, above-mentioned dry type leakage detecting apparatus includes for measured piece described in clamping and sealing the folder of the air outlet
Tool, the pressure sensor are mounted on the fixture.
The beneficial effect of the technical solution is: since the air outlet of pressure sensor and measured piece is tightly connected, pressure
For force snesor under certain gas pressure, pressure sensor must obtain certain support with the air outlet with measured piece
Firm connection makes pressure sensor that can not only obtain effective support by being mounted on pressure sensor on fixture, and
It can be avoided cost increase caused by the component for introducing other dedicated for supporting pressure sensor.
Further aspect of the application provides a kind of dry type leak hunting method, described using above-mentioned dry type leakage detecting apparatus
Dry type leak hunting method includes:
The connection signal between current measured piece and the leak detector is received, and is selected in the comparison chamber of current idle
Take one previous gas leakage detection used in one as targeted contrast chamber corresponding with current measured piece；
It controls the leak detector and gas leakage detection is carried out to current measured piece using the targeted contrast chamber, be currently tested
The corresponding gas leakage testing result of part.
Preferably, the control leak detector carries out gas leakage detection to current measured piece using the targeted contrast chamber,
Include:
The leak detector is controlled via the normal end and the corresponding switch valve of the targeted contrast chamber, in preset period of time
The object gas of predetermined amount is filled into the targeted contrast chamber, and simultaneously in identical preset period of time to current measured piece
Fill the object gas of identical predetermined amount in inside；
The pressure difference between the current measured piece and corresponding targeted contrast chamber of the leak detector acquisition is obtained, and according to described
Comparison result between pressure difference and preset threshold determines the gas leakage testing result of current measured piece.
Preferably, it is described obtain the corresponding gas leakage testing result of current measured piece after, further includes:
It controls the leak detector and pressure release processing is carried out to current measured piece, and store the leakage for completing current measured piece
The corresponding current sequence number of comparison chamber of gas detection process；
It is corresponding, it is described in the comparison chamber of current idle choose one previous gas leakage detection used in one
It is a as targeted contrast chamber corresponding with current measured piece, comprising:
The corresponding comparison chamber of a serial number other than the current sequence number is chosen as target corresponding with current measured piece
Compare chamber.
The beneficial effect of the technical solution is: in such manner, it is possible to by every time detect at the end of to comparison chamber use into
Row record, and then guarantee that the comparison chamber chosen is preceding primary not used comparison chamber.
Preferably, further includes: the atmospheric pressure value at the air outlet of the detection current measured piece；
It is compared according to atmospheric pressure value with preset threshold and judges whether current measured piece blocks, obtain corresponding jam detection
As a result.
Preferably, described compared according to atmospheric pressure value with preset threshold judges whether current measured piece blocks, and obtains pair
The operating procedure for the jam detection result answered carries out current measured piece using the targeted contrast chamber with the leak detector is controlled
The operating procedure of gas leakage detection is synchronous to be carried out.
The beneficial effect of the technical solution is: if the jam detection for first carrying out measured piece carries out the gas leakage of measured piece again
Detection, then when carrying out jam detection, an inflation/deflation has been carried out in measured piece, cause measured piece temperature raising, be further continued for into
When row gas leakage detects, it just will appear the temperature difference between measured piece and comparison chamber, the accuracy of test adversely affected, and make to block up
Plug detection and gas leakage are detected while being carried out, i.e., two detection process can be completed by only carrying out an inflation/deflation to measured piece, no
But test period is saved, and avoids measured piece since jam detection temperature rises the adverse effect detected to gas leakage.
Preferably, it is described obtain the corresponding gas leakage testing result of current measured piece after, further includes:
It shows and/or sends the gas leakage testing result and the jam detection result to corresponding client.
The beneficial effect of the technical solution is: this visualizes testing result, makes dry type leakage detecting apparatus and method certainly
Dynamicization degree is higher.
Preferably, it is described obtain the corresponding gas leakage testing result of current measured piece after, further includes:
If the current corresponding gas leakage testing result of measured piece shows current measured piece, there are gas leakage situations, and/or, if
The current corresponding jam detection of measured piece blocks situation the result shows that current measured piece exists, then control and the leak detector
At least one of indicator light, voice announcer and display screen of communication connection carry out corresponding police instruction.
The beneficial effect of the technical solution is: in this way, can be prompted, further be mentioned automatically after the completion of detection
High the degree of automation of dry type leakage detecting apparatus and method.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
Dry type leakage detecting apparatus provided by the embodiment of the present application and dry type leak hunting method need to connect multiple measured pieces
It, can be preferentially using temperature comparison chamber identical with measured piece or pair in room temperature state in each comparison chamber when continuous leak test
Than chamber, so that the higher comparison chamber of temperature is in idle state and cool down, when the temperature of the higher comparison chamber of the temperature reduces
To identical or be reduced to room temperature that can reuse as the temperature of measured piece, and then comparison chamber temperature is reduced to the shadow of test accuracy
It rings.
The additional technical feature and its advantage of the application will illustrate more obvious in following description content, or pass through
The concrete practice of the application is recognized that.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application specific embodiment, specific embodiment will be described below
Needed in attached drawing be briefly described.It should be evident that the accompanying drawings in the following description is some implementations of the application
Mode for those of ordinary skill in the art without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of embodiment of dry type leakage detecting apparatus provided by the embodiment of the present application；
Fig. 2 is a kind of structural schematic diagram of embodiment of dry type leakage detecting apparatus provided by the embodiment of the present application.
Label: 1- measured piece；2- fixture；3- compares chamber；4- leak detector；5- pressure sensor；6- rack；7- indicator light；
8- computer system；9- switch valve.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the application, it is clear that described implementation
Example is some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in application.
As shown in Figs. 1-2, the one aspect that the embodiment of the present application provides the application provides a kind of dry type leakage detecting apparatus, packet
Include: leak detector 4, at least two compares chamber 3 and at least two switch valves 9, and each comparison chamber 3 and each switch valve 9 are one by one
It is correspondingly connected with, the leak detector 4 has normal end, and each switch valve 9 is connect with the normal end respectively.
By dry type leakage detecting apparatus provided by the embodiment of the present application, leak detection examination is carried out continuously carrying out multiple measured pieces 1
It, can be preferentially using temperature comparison chamber 3 identical with measured piece 1 or the comparison chamber in room temperature state in each comparison chamber 3 when testing
3, so that the higher comparison chamber 3 of temperature is in idle state and cool down, when the temperature it is higher comparison chamber 3 temperature be reduced to
It can be reused when the temperature of measured piece 1 is identical or is reduced to room temperature, and then reduce the shadow of comparison 3 humid test accuracy of chamber
It rings.In the embodiment of the present application, measured piece 1 is intercooler, or other such as oil cooler devices；The embodiment of the present application is mentioned
The dry-type leak hunting device of confession may include rack 6, provide installation site with the other component for dry-type leak hunting device.
In a kind of embodiment of the application, compare chamber 3 and switch valve 9 there are three.If two comparisons are only arranged
Chamber 3, comparison chamber 3 are only capable of cooling down within a test period, and temperature possibly can not be reduced to perfect condition, if setting four
A or above comparison chamber 3 has the long period idle after then may cause the cooling completely of comparison chamber 3, make to compare 3 utilization rate of chamber compared with
It is low, and the quantity for comparing chamber 3 excessively will lead to cost increase, and dry type leakage detecting apparatus is made to occupy larger space, when using three
When comparing chamber 3, each chamber 3 that compares uses in turn, can leave unused two test periods after making each 3 use of comparison chamber, makes to compare chamber 3
With enough but not too long cooling times, the utilization rate of comparison chamber 3 is improved, and limits the manufacture of dry type leakage detecting apparatus
It cost and takes up space；The above-mentioned test period refers to the time needed for completing gas leakage detection.Certainly, of chamber 3 is compared
Number or two or four and four are with first-class quantity.
In a kind of embodiment of the application, dry type leakage detecting apparatus provided by the embodiment of the present application, including for pacifying
Pressure sensor 5 at the air outlet of measured piece 1, pressure sensor 5 and leak detector 4 communicate to connect；The pressure passes
Sensor 5 is used to measure the atmospheric pressure value at the air outlet of measured piece 1.By the pressure sensor 5, measured piece 1 can be measured and gone out
The atmospheric pressure value of gas port, and then it is compared the atmospheric pressure value with the preset threshold in processor, if atmospheric pressure value is not at this
In preset threshold, then illustrate that measured piece 1 blocks, and then termination test.
In a kind of embodiment of the application, dry type leakage detecting apparatus provided by the embodiment of the present application, including for filling
Folder measured piece 1 and the fixture 2 for sealing air outlet, pressure sensor 5 are mounted on fixture 2.Since pressure sensor 5 is for surveying
The air pressure of the air outlet of measured piece 1 is measured, pressure sensor 5 is under certain gas pressure, and pressure sensor 5 must obtain
It obtains and centainly supports firmly to be connect with the air outlet of measured piece 1, by being mounted on pressure sensor 5 for fixed tested
On the fixture 2 of part 1, make pressure sensor 5 that can not only obtain effective support, and can be avoided and introduce other dedicated for branch
The problem of cost increase caused by the component of bulging force snesor 5.
Further aspect of the application provides a kind of dry type leak hunting method, uses provided by above-mentioned the embodiment of the present application
Dry type leakage detecting apparatus, dry type leak hunting method include:
The connection signal between current measured piece 1 and leak detector 4 is received, and chooses one in the comparison chamber 3 of current idle
Previous gas leakage detection used in one as targeted contrast chamber 3 corresponding with current measured piece 1；
It controls 4 application target of leak detector comparison chamber 3 and gas leakage detection is carried out to current measured piece 1, it is right to obtain current measured piece 1
The gas leakage testing result answered.
Dry type leak hunting method provided by the embodiment of the present application is hunted leak by using dry type provided by the embodiment of the present application
Device can choose the not comparison chamber 3 used in previous gas leakage detection, at least two comparison chambers 3 to avoid same a pair
Internal temperature caused by being used continuously than chamber 3 is excessively high, the problem of adversely affecting to the accuracy of detection, and then improves detection
As a result accuracy.The control main body of dry type leak hunting method provided in the embodiment of the present application can be setting in leak detector 4
In processor, or one the outside of leak detector 4 is set and communicated to connect with leak detector 4 processor, server and
Client device, citing can be computer system 8 as shown in Figure 1.
In a kind of embodiment of the application, control 4 application target of leak detector comparison chamber 3 carries out current measured piece 1
Gas leakage detection, comprising:
Leak detector 4 is controlled via normal end and the corresponding switch valve 9 of targeted contrast chamber 3, to target pair in preset period of time
Than the object gas for filling predetermined amount in chamber 3, and simultaneously in identical preset period of time to filling phase inside current measured piece 1
With the object gas of predetermined amount；
The pressure difference between the current measured piece 1 and corresponding targeted contrast chamber 3 that leak detector 4 acquires is obtained, and according to pressure difference
Comparison result between preset threshold determines the gas leakage testing result of current measured piece 1.
In a kind of embodiment of the application, after obtaining the corresponding gas leakage testing result of current measured piece 1, also wrap
It includes:
It controls leak detector 4 and pressure release processing is carried out to current measured piece 1, and store the leakage for completing current measured piece 1
The corresponding current sequence number of comparison chamber 3 of gas detection process；
It is corresponding, it is described in the comparison chamber 3 of current idle choose one previous gas leakage detection used in
One as targeted contrast chamber 3 corresponding with current measured piece 1, comprising:
The corresponding comparison chamber 3 of a serial number other than the current sequence number is chosen as mesh corresponding with current measured piece 1
Mark comparison chamber 3.
Each comparison chamber corresponds to a serial number, and each serial number is different from.In such manner, it is possible at the end of by detecting every time
The use of comparison chamber 3 is recorded, and then guarantees that the comparison chamber 3 chosen is preceding primary not used comparison chamber 3.
In a kind of embodiment of the application, dry type leak hunting method provided by the embodiment of the present application, further includes:
Detect the atmospheric pressure value at the air outlet of the current measured piece 1；
It is compared according to atmospheric pressure value with preset threshold and judges whether current measured piece 1 blocks, obtain corresponding blocking inspection
Survey result.The problem of measured piece 1 is not only revealed, it is also possible to there are problems that blocking, only carrying out leak detection can not exclude to be tested
The defect that may be present of part 1, therefore jam detection is introduced, and then find the underproof measured piece 1 because of blocking in time.
In a kind of embodiment of the application, described compared according to atmospheric pressure value and preset threshold judges current be tested
Whether part 1 blocks, and obtains the operating procedure of corresponding jam detection result, applies the mesh with the control leak detector 4
The operating procedure that mark comparison chamber 3 carries out gas leakage detection to current measured piece 1 is synchronous to be carried out.If first carrying out the blocking of measured piece 1
Detection carries out the gas leakage detection of measured piece 1 again, then when carrying out jam detection, an inflation/deflation has been carried out in measured piece 1, has been caused
1 temperature of measured piece increases, and when being further continued for carrying out gas leakage detection, just will appear the temperature difference between measured piece 1 and comparison chamber 3, to test
Accuracy adversely affect, and detect jam detection and gas leakage and carry out simultaneously, i.e., only to the charge and discharge of progress of measured piece 1
Gas can complete jam detection and gas leakage and detect two processes, not only save test period, and avoid measured piece 1 by
Rise the adverse effect detected to gas leakage in jam detection temperature.
In a kind of embodiment of the application, after obtaining the corresponding gas leakage testing result of current measured piece 1, also wrap
It includes:
It shows and/or sends gas leakage testing result and jam detection result to corresponding client.This makes testing result
Visualization, keeps dry type leakage detecting apparatus and method the degree of automation higher.
In a kind of embodiment of the application, after obtaining the corresponding gas leakage testing result of current measured piece 1, also wrap
It includes:
If the current corresponding gas leakage testing result of measured piece 1 shows current measured piece 1, there are gas leakage situations, and/or, if working as
The corresponding jam detection of preceding measured piece 1 blocks situation the result shows that current measured piece 1 exists, then control and 4 communication link of leak detector
At least one of indicator light 7, voice announcer and display screen for connecing carry out corresponding police instruction.In this way, when detection is completed
Afterwards, it can be prompted automatically, further improve the degree of automation of dry type leakage detecting apparatus and method.
It is understood that the client may include smart phone, it is Flat electronic equipment, network machine top box, portable
Formula computer, desktop computer, personal digital assistant (PDA), mobile unit, intelligent wearable device etc..Wherein, the intelligence wearing
Equipment may include smart glasses, smart watches, Intelligent bracelet etc..
In practical applications, the part of dry type leak detection can be executed in processor side, and operation that can also be all is all in institute
It states in client device and completes.It specifically can be according to the processing capacity of the client device and the limit of user's usage scenario
System etc. is selected.The application is not construed as limiting this.If all operations are all completed in the client device, the client
End equipment can also include processor.
Above-mentioned client device can have communication module (i.e. communication unit), can be led to long-range processor
Letter connection, realizes and transmits with the data of the processor.The processor may include the server of task schedule center side,
It also may include the server of halfpace in other implement scenes, such as have communication linkage with task schedule central server
Third-party server platform server.The server may include single computer unit, also may include multiple
The server cluster of server composition or the server architecture of distributed devices.
Any suitable network protocol can be used between the processor and the client device to be communicated, including
In the network protocol that the application submitting day is not yet developed.The network protocol for example may include ICP/IP protocol, UDP/IP
Agreement, http protocol, HTTPS agreement etc..Certainly, the network protocol for example can also include using on above-mentioned agreement
RPC agreement (Remote Procedure Call Protocol, remote procedure call protocol), REST agreement
(Representational State Transfer, declarative state transfer protocol) etc..
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the application, rather than its limitations；To the greatest extent
Pipe is described in detail the application referring to foregoing embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, each embodiment technology of the application that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (11)
1. dry type leakage detecting apparatus characterized by comprising leak detector, at least two comparison chambers and at least two switch valves, each institute
Comparison chamber is stated to connect one to one with each switch valve, the leak detector with normal end, and each switch valve respectively with
The normal end connection.
2. dry type leakage detecting apparatus according to claim 1, which is characterized in that including the outlet side for being mounted on measured piece
Pressure sensor at mouthful, the pressure sensor and the leak detector communicate to connect；The pressure sensor is for measuring quilt
Survey the atmospheric pressure value at the air outlet of part.
3. dry type leakage detecting apparatus according to claim 2, which is characterized in that including being used for measured piece described in clamping and sealing
The fixture of the air outlet, the pressure sensor are mounted on the fixture.
4. dry type leakage detecting apparatus according to claim 1, which is characterized in that the comparison chamber and the switch valve have three
It is a.
5. dry type leak hunting method, which is characterized in that hunt leak and fill using the dry type as described in any one of claim 1-4
It sets, the dry type leak hunting method includes:
The connection signal between current measured piece and the leak detector is received, and chooses one in the comparison chamber of current idle
Previous gas leakage detection used in one as targeted contrast chamber corresponding with current measured piece；
It controls the leak detector and gas leakage detection is carried out to current measured piece using the targeted contrast chamber, obtain current measured piece pair
The gas leakage testing result answered.
6. dry type leak hunting method according to claim 5, which is characterized in that
The control leak detector carries out gas leakage detection to current measured piece using the targeted contrast chamber, comprising:
The leak detector is controlled via the normal end and the corresponding switch valve of the targeted contrast chamber, to institute in preset period of time
The object gas that predetermined amount is filled in targeted contrast chamber is stated, and
Simultaneously to the object gas for filling identical predetermined amount inside current measured piece in identical preset period of time；
The pressure difference between the current measured piece and corresponding targeted contrast chamber of the leak detector acquisition is obtained, and according to the pressure difference
Comparison result between preset threshold determines the gas leakage testing result of current measured piece.
7. dry type leak hunting method according to claim 5, which is characterized in that obtain the corresponding leakage of current measured piece described
After gas testing result, further includes:
It controls the leak detector and pressure release processing is carried out to current measured piece, and storage is examined for completing the gas leakage of current measured piece
The corresponding current sequence number of comparison chamber of survey process；
It is corresponding, it is described in the comparison chamber of current idle choose one previous gas leakage detection used in one work
For targeted contrast chamber corresponding with current measured piece, comprising:
The corresponding comparison chamber of a serial number other than the current sequence number is chosen as targeted contrast corresponding with current measured piece
Chamber.
8. dry type leak hunting method according to claim 5, which is characterized in that further include:
Detect the atmospheric pressure value at the air outlet of the current measured piece；
It is compared according to atmospheric pressure value with preset threshold and judges whether current measured piece blocks, obtain corresponding jam detection knot
Fruit.
9. dry type leak hunting method according to claim 8, which is characterized in that described to be carried out according to atmospheric pressure value and preset threshold
Comparison judges whether current measured piece blocks, and obtains the operating procedure of corresponding jam detection result, with the control inspection
Leak the synchronous progress of operating procedure that instrument carries out gas leakage detection to current measured piece using the targeted contrast chamber.
10. dry type leak hunting method according to claim 9, which is characterized in that obtain current measured piece corresponding described
After gas leakage testing result, further includes:
It shows and/or sends the gas leakage testing result and the jam detection result to corresponding client.
11. dry type leak hunting method according to claim 8, which is characterized in that obtain current measured piece corresponding described
After gas leakage testing result, further includes:
If the current corresponding gas leakage testing result of measured piece shows current measured piece, there are gas leakage situations, and/or, if currently
The corresponding jam detection of measured piece is the result shows that there is blocking situation in current measured piece, then control is communicated with the leak detector
At least one of indicator light, voice announcer and display screen of connection carry out corresponding police instruction.
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Application publication date: 20191008 |