CN207528391U - EMU pressure wave sensor function test device - Google Patents
EMU pressure wave sensor function test device Download PDFInfo
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- CN207528391U CN207528391U CN201721600021.2U CN201721600021U CN207528391U CN 207528391 U CN207528391 U CN 207528391U CN 201721600021 U CN201721600021 U CN 201721600021U CN 207528391 U CN207528391 U CN 207528391U
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- pipe
- tube
- test lead
- wave sensor
- blast main
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Abstract
EMU pressure wave sensor function test device belongs to the acting characteristic test device field of motor train unit train pressure wave sensor, including gas blow pipe, air blowing tube valve, blast main tee pipe fitting, test lead valve, test lead tee pipe fitting, two test lead branched pipes, U-tube and blast main.The beneficial effects of the utility model are：The EMU pressure wave sensor function test device is simple, reliable, and synchronism is good, and pressure value accuracy is high, and labor intensive is less, and palm can be avoided to apply the excessive damage to pressure sensor of pressure.In addition the EMU pressure wave sensor function test device also has simple and practical in structure, easy to operate, of low cost, the advantages that convenient for popularizing.
Description
Technical field
The utility model belongs to the acting characteristic test device field of motor train unit train pressure wave sensor, and in particular to
A kind of EMU pressure wave sensor function test device.
Background technology
There are one air pressure detection holes respectively for the headstock both sides of motor train unit train, connect vehicle-mounted pressure wave sensor dress respectively
The two corresponding pressure sensors put, when train operation enters tunnel, two sensors of pressure wave sensor are simultaneously
Sense the change value of pressure of the size for meeting deliberate action trigger value and rate of change all same, then it will send out control instruction
And the pneumatic air door of air-conditioning system is closed, so as to ensure the comfort of passenger's seating.
Bar (bar) is the pressure unit of old system, be equivalent to water column liquid level under the effect of gravity 0.5 meter of vertical drop when 2
Generated pressure value, 1bar=0.1MPa.Still continue to use the pressure standard much measured with bar in track train field.Pressure
Wave sensor pressure-operated preset value is 0.05bar.
When producing motor train unit train, the detection that carries out an acceptance inspection to the acting characteristic of pressure wave sensor purchased is needed,
Its existing method includes following two：
Method one：Flop two corresponding pressure pipes on pressure wave sensor device simultaneously by two palms of both hands
Line interface, whether the moment pressure differential detection pressure wave sensor device generated by palm slap, which sends out correct action command, is believed
Number.However, under the influence of inevitable human factor, synchronizing speed, the slap dynamics of two palms have error, therefore
Repeated multiple times test is needed, just can ensure that result accurately and reliably.Therefore, the method is time-consuming and laborious, inefficiency, and easily right
It makes author and causes wound.
Method two：It is directly corresponding by two of the pressure system of given pressure value and detected pressure wave sensor device
Pressure line interface connect respectively, main pipe rail valve is opened by moment, the air pressure for making pressure system is same along main pipe line
Stepping enters two pressure line interfaces on pressure wave sensor device, so as to complete to test.But the method does not only take up pressure
System causes it to be not used to other production activities, and with high costs, expends electric energy, in addition, also there are pressure value control not
When the risk that detected pressure wave sensor device is caused to be scrapped under excessively high compression shock.
Utility model content
During in order to solve the existing test EMU pressure wave sensor actuation characteristic using the method manually flopped, test
Error is inevitable, and time-consuming and laborious, inefficiency；And the with high costs of corresponding test is carried out using pressure system, and also
Detected pressure wave sensor device is easily made to face the technical issues of scrapping risk, the utility model provides a kind of EMU pressure
Wave sensor device for testing functions.
The utility model technical solution adopted for solving the technical problem is as follows：
EMU pressure wave sensor function test device, including gas blow pipe, air blowing tube valve, blast main three-way pipe
Part, test lead valve, test lead tee pipe fitting, two test lead branched pipes, U-tube and blast main, the outlet of test lead valve
End connect with a port of test lead tee pipe fitting, two test lead branched pipes respectively with test lead tee pipe fitting other two
A port is correspondingly connected with；The arrival end of test lead valve is connect with a port of blast main tee pipe fitting, and the one of blast main
End is connect with second port of blast main tee pipe fitting, the third that gas blow pipe passes through air blowing tube valve and blast main tee pipe fitting
A port connection；
The U-tube includes integrally formed U-tube right vertical pipe, U-tube left side vertical pipe and U-shaped communicating pipe,
Three collectively form a U-shaped linker placed vertically；The other end of blast main connects with the top port of U-tube left side vertical pipe
It connects；
The length of the U-tube right vertical pipe and U-tube left side vertical pipe is the glass straight tube of 1.1m, and U-tube is right
The upper end opening of side VERTICAL TUBE is simultaneously and atmosphere, the middle-end outer diameter of U-tube right vertical pipe are equipped with graduation mark.
The total length of above-mentioned graduation mark be 1m, graduation mark from bottom to up by 0.25m spacing sequentially be equipped with 1m graduation marks,
0.75m graduation marks, 0.5m graduation marks, 0.25m graduation marks and 0 graduation mark.
The beneficial effects of the utility model are：The EMU pressure wave sensor function test device is simple, reliable, synchronous
Property it is good, pressure value accuracy is high, and labor intensive is less, and palm can be avoided to apply the excessive damage to pressure sensor of pressure.This
The EMU pressure wave sensor function test device also has simple and practical in structure outside, easy to operate, of low cost, convenient for pushing away
Broad-spectrum and the advantages that.
Description of the drawings
Fig. 1 is the structure diagram of the utility model EMU pressure wave sensor function test device；
Fig. 2 is the application signal before the adjustment of the utility model EMU pressure wave sensor function test device liquid level
Figure；
Fig. 3 is the application signal after the adjustment of the utility model EMU pressure wave sensor function test device liquid level
Figure.
Specific embodiment
The utility model is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, the EMU pressure wave sensor function test device of the utility model includes gas blow pipe 1, blows
Tube valve 2, blast main tee pipe fitting 3, test lead valve 5, test lead tee pipe fitting 4, two test lead branched pipes 6, U-tubes 7
With blast main 8, the port of export of test lead valve 5 is connect with a port of test lead tee pipe fitting 4, two test lead branched pipes
6 are correspondingly connected with respectively with other two port of test lead tee pipe fitting 4；The arrival end of test lead valve 5 and blast main threeway
The a port connection of pipe fitting 3, one end of blast main 8 are connect with second port of blast main tee pipe fitting 3, gas blow pipe 1
It is connect by air blowing tube valve 2 with the third port of blast main tee pipe fitting 3；Wherein, air blowing tube valve 2 and test lead valve
5 using conventional ball valve, and for two test lead branched pipes 6 using hose, blast main 8 uses hard steel pipe or plastic tube.
The U-tube 7 includes integrally formed U-tube right vertical pipe 7-1, U-tube left side vertical pipe 7-2 and U-shaped company
Siphunculus 7-3, thirdly collectively forming a U-shaped linker placed vertically；The other end of blast main 8 and U-tube left side vertical pipe
The top port connection of 7-2.
The U-tube right vertical pipe 7-1 and U-tube left side vertical pipe 7-2 is the glass straight tube of length 1.1m, U-shaped
The upper end opening of pipe right vertical pipe 7-1 is simultaneously and atmosphere, the middle-end outer diameter of U-tube right vertical pipe 7-1 are equipped with scale
Line.
The graduation mark total length that the U-tube right vertical pipe 7-1 middle-end outer diameters are equipped be 1m, graduation mark from down toward
The upper spacing by 0.25m is sequentially equipped with 1m graduation marks, 0.75m graduation marks, 0.5m graduation marks, 0.25m graduation marks and 0 graduation mark.
During the EMU pressure wave sensor function test device of concrete application the utility model, first, by two tests
End branched pipe 6 connects respectively with two corresponding pressure line interfaces on pressure wave sensor device to be tested respectively.So
Test lead valve 5 is closed afterwards, and air blowing tube valve 2 is opened, and U-tube 7 is fixed with vertical posture.Hereafter, such as
Shown in Fig. 2, proper amount of clear water is injected from the upper end of U-tube right vertical pipe 7-1 to its inside, and make the water column liquid level in U-tube 7
Height maintains an equal level with the 0.25m graduation marks on U-tube right vertical pipe 7-1.
Hereafter, shown in Fig. 3, air is slowly blown into U-tube left side vertical pipe 7-2 out of gas blow pipe 1 through blast main 8,
And make the water column in U-tube 7 under the action of air pressure out of U-tube left side vertical pipe 7-2 through U-shaped communicating pipe 7-3 to U-shaped
It is flowed in pipe right vertical pipe 7-1, when the water column liquid level of U-tube right vertical pipe 7-1 is increased to 0.5m graduation marks, shutdown is blown
Tracheae valve 2 simultaneously stops blowing.So as to which the water column liquid level in U-tube right vertical pipe 7-1 be made to be maintained at pair of 0.5m graduation marks
Answer height and position.So far, that is, the button-up operations before test are completed, pressure wave sensor device to be tested can be opened
The acting characteristic for beginning to carry out pressure wave sensor carries out an acceptance inspection detection.
It is quick to open test lead valve 5 during detection, so as to make two test lead branched pipes 6 respectively through blast main 8 and U-shaped
Pipe 7 and atmosphere, under the collective effect of atmospheric pressure and gravity, water column liquid level in U-tube right vertical pipe 7-1 from
0.5m graduation mark height and position moments fall, so as to generate the air pressure of 0.05bar, air pressure warp inside U-tube 7
After blast main 8, test lead valve 5 and test lead tee pipe fitting 4, synchronous effect is in two 6 other ends of test lead branched pipe respectively
Pressure wave sensor device to be tested on two corresponding pressure line interfaces on, so as to using water column decline moment
Pressure activation pressure wave sensor device, simulating vehicle enters tunnel moment vehicle environmental pressure change, and then completes to level pressure
Pressure wave sensor dual-port synchronism detection under force value.
Claims (2)
1. EMU pressure wave sensor function test device, it is characterised in that：The device includes gas blow pipe (1), air blowing pipe valve
Door (2), blast main tee pipe fitting (3), test lead valve (5), test lead tee pipe fitting (4), two test lead branched pipes (6), U
Shape pipe (7) and blast main (8), the port of export of test lead valve (5) are connect with a port of test lead tee pipe fitting (4), and two
Other two port of a test lead branched pipe (6) respectively with test lead tee pipe fitting (4) is correspondingly connected with；Test lead valve (5)
Arrival end connect with a port of blast main tee pipe fitting (3), one end of blast main (8) and blast main tee pipe fitting
(3) second port connection, the third port that gas blow pipe (1) passes through air blowing tube valve (2) and blast main tee pipe fitting (3)
Connection；
The U-tube (7) includes integrally formed U-tube right vertical pipe (7-1), U-tube left side vertical pipe (7-2) and U-shaped
Communicating pipe (7-3), thirdly collectively forming a U-shaped linker placed vertically；The other end of blast main (8) and U-tube left side
The top port connection of VERTICAL TUBE (7-2)；
The U-tube right vertical pipe (7-1) and U-tube left side vertical pipe (7-2) are the glass straight tube of length 1.1m, U-shaped
The upper end opening of pipe right vertical pipe (7-1) is simultaneously equipped with atmosphere, the middle-end outer diameter of U-tube right vertical pipe (7-1)
Graduation mark.
2. EMU pressure wave sensor function test device as described in claim 1, it is characterised in that：The graduation mark
Total length is 1m, and graduation mark is sequentially equipped with 1m graduation marks, 0.75m graduation marks, 0.5m scales by the spacing of 0.25m from bottom to up
Line, 0.25m graduation marks and 0 graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721600021.2U CN207528391U (en) | 2017-11-25 | 2017-11-25 | EMU pressure wave sensor function test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721600021.2U CN207528391U (en) | 2017-11-25 | 2017-11-25 | EMU pressure wave sensor function test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528391U true CN207528391U (en) | 2018-06-22 |
Family
ID=62580804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721600021.2U Active CN207528391U (en) | 2017-11-25 | 2017-11-25 | EMU pressure wave sensor function test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207528391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113377090A (en) * | 2021-08-12 | 2021-09-10 | 新誉轨道交通科技有限公司 | Pressure change model for motor train unit, and method, system and device for diagnosing air door fault |
| CN116793574A (en) * | 2023-08-25 | 2023-09-22 | 新誉集团有限公司 | Fault detection method and system for train pressure wave sensor |
-
2017
- 2017-11-25 CN CN201721600021.2U patent/CN207528391U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113377090A (en) * | 2021-08-12 | 2021-09-10 | 新誉轨道交通科技有限公司 | Pressure change model for motor train unit, and method, system and device for diagnosing air door fault |
| CN116793574A (en) * | 2023-08-25 | 2023-09-22 | 新誉集团有限公司 | Fault detection method and system for train pressure wave sensor |
| CN116793574B (en) * | 2023-08-25 | 2023-11-07 | 新誉集团有限公司 | Fault detection method and system for train pressure wave sensor |
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