CN212083182U - Portable ventilation rate testing device - Google Patents
Portable ventilation rate testing device Download PDFInfo
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- CN212083182U CN212083182U CN202020588148.2U CN202020588148U CN212083182U CN 212083182 U CN212083182 U CN 212083182U CN 202020588148 U CN202020588148 U CN 202020588148U CN 212083182 U CN212083182 U CN 212083182U
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Abstract
The utility model discloses a portable speed testing arrangement that breathes freely, including looping through aerostatic press, air-vent valve, flow meter, test fixture module that the pipeline links to each other and the work piece under test, test fixture module still is connected to outside PLC controller, and test fixture module feeds back test pressure to the PLC controller in to test pressure stability is transferred and is established the back and carry out the flow meter through flow meter. This testing arrangement is simple reliable, and direct will be surveyed the work piece butt joint equipment during the test and detect the frock on, test fixture module optimizes to modular design, and the adaptation that corresponds is carried out to the demand that corresponds the detection function selects, and the commonality is high, effectively reduces use cost.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of test equipment, concretely relates to portable speed testing arrangement that breathes freely.
[ background of the invention ]
The method for detecting the flow rate after applying certain pressure on a detected product in the detection of the ventilation rate is used for detecting the waterproof or air-lock performance; the existing method is generally used for detecting the ventilation rate testing equipment, but the equipment is complex in structure, high in manufacturing cost and inconvenient to detect.
In view of the above, it is necessary to develop a detection device which is small, modular and highly reliable.
[ Utility model ] content
In order to solve the current problem that exists among the background art, the utility model provides a portable speed testing arrangement that breathes freely, simple structure and small-size modularization, reliable operation and use cost are low.
The utility model adopts the following technical proposal:
portable ventilation rate testing arrangement is including looping through aerostatic press, air-vent valve, flowmeter, test fixture module and the work piece under test that the pipeline links to each other, test fixture module still is connected to outside PLC controller, test fixture module feeds back test pressure to the PLC controller in to the process is carried out the flow meter to the stable back warp of setting of test pressure the flowmeter.
Further, the test tool module comprises a differential pressure gauge, a first valve and a detection tool, the differential pressure gauge is connected between the flow meter and the first valve, the differential pressure gauge is connected with the PLC, the first valve is connected with the detection tool, and the detected workpiece is connected to the detection tool.
Furthermore, a filter is connected between the air compressor and the pressure regulating valve.
Furthermore, a second valve is connected between the pressure regulating valve and the flow meter.
Further, the first valve and the second valve are solenoid valves.
The utility model has the advantages as follows:
this testing arrangement is simple reliable, and direct will be surveyed the work piece butt joint equipment during the test and detect the frock on, test fixture module optimizes to modular design, and the adaptation that corresponds is carried out to the demand that corresponds the detection function selects, and the commonality is high, effectively reduces use cost.
[ description of the drawings ]
Fig. 1 is the utility model discloses portable speed testing arrangement that breathes freely's connection schematic diagram.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
Referring to fig. 1:
the utility model relates to a portable speed testing arrangement that breathes freely, including looping through aerostatic press 1, air-vent valve 2, flow meter 3, test fixture module 4 that the pipeline links to each other and being surveyed the work piece 5, test fixture module 4 still is connected to outside PLC controller, test fixture module 4 feeds back test pressure to the PLC controller in to the back warp is established to test pressure stable transfer flow meter 3 carries out the flow meter and counts, wherein, most importantly, test fixture module 4 is modular design, carries out corresponding adaptation replacement according to the different functions that will detect, improves this testing arrangement's use commonality to realize that one set of testing arrangement can satisfy multiple performance's detection demand, effectively reduced the cost.
As a preferred embodiment, a further scheme is that the test tool module 4 includes a differential pressure gauge 41, a first valve 42 and a detection tool 43, the differential pressure gauge 41 is connected between the flow meter 3 and the first valve 42, the differential pressure gauge 41 is connected with the PLC controller, the first valve 42 is connected with the detection tool 43, the workpiece 5 to be detected is connected to the detection tool 43, a filter 6 is further connected between the gas compressor 1 and the pressure regulating valve 2, a second valve 7 is connected between the pressure regulating valve 2 and the flow meter 3, and the first valve 42 and the second valve 7 are electromagnetic valves.
The detection principle of the test device is as follows: the workpiece 5 to be detected is connected to the detection tool 43, the first valve 42 is kept closed before the air compressor 1 is started, meanwhile, the second valve 7 is opened, the air pressure of the air compressor 1 needs to be controlled below 0.6MPa, at the moment, the air is filtered by impurities through the filter 6, whether the flow meter 3 has indexes or not is checked, if yes, whether the first valve 42 is closed or not needs to be further confirmed, if the flow meter 3 has an index in the closed state, the air leakage is judged to occur, corresponding investigation and maintenance are required, if no index exists, the whole detecting device is normal, then the first valve 42 is opened to adjust the pressure regulating valve 2 to a specific test pressure value, the pressure difference meter 41 further stably controls the test pressure and then transmits the pressure value to an external PLC controller, finally, the flow meter 3 calculates the flow rate under the test pressure value to obtain the ventilation rate of the tested workpiece 5; the device is simple, the test is convenient and reliable, the test difficulty and the use cost are reduced, and the practicability is greatly improved.
The utility model has the advantages that:
this testing arrangement is simple reliable, and direct will be surveyed the work piece butt joint equipment during the test and detect the frock on, test fixture module optimizes to modular design, and the adaptation that corresponds is carried out to the demand that corresponds the detection function selects, and the commonality is high, effectively reduces use cost.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (5)
1. Portable speed testing arrangement that breathes freely, its characterized in that: the test tool module is also connected to an external PLC (programmable logic controller), feeds back test pressure to the PLC, and performs flow measurement through the flow meter after the test pressure is stably adjusted.
2. The portable air permeation rate testing device of claim 1, wherein: the test tool module comprises a differential pressure gauge, a first valve and a detection tool, the differential pressure gauge is connected between the flow meter and the first valve, the differential pressure gauge is connected with the PLC, the first valve is connected with the detection tool, and the workpiece to be detected is connected to the detection tool.
3. The portable air permeation rate testing device of claim 1, wherein: and a filter is also connected between the air compressor and the pressure regulating valve.
4. The portable air permeation rate testing device of claim 2, wherein: and a second valve is connected between the pressure regulating valve and the flowmeter.
5. The portable air permeation rate testing device of claim 4, wherein: the first valve and the second valve are electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588148.2U CN212083182U (en) | 2020-04-17 | 2020-04-17 | Portable ventilation rate testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020588148.2U CN212083182U (en) | 2020-04-17 | 2020-04-17 | Portable ventilation rate testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212083182U true CN212083182U (en) | 2020-12-04 |
Family
ID=73596734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020588148.2U Active CN212083182U (en) | 2020-04-17 | 2020-04-17 | Portable ventilation rate testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212083182U (en) |
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2020
- 2020-04-17 CN CN202020588148.2U patent/CN212083182U/en active Active
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