CN202267583U - Simple air tightness performance test device for air conditioning units of high speed trains - Google Patents
Simple air tightness performance test device for air conditioning units of high speed trains Download PDFInfo
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- CN202267583U CN202267583U CN2011203079905U CN201120307990U CN202267583U CN 202267583 U CN202267583 U CN 202267583U CN 2011203079905 U CN2011203079905 U CN 2011203079905U CN 201120307990 U CN201120307990 U CN 201120307990U CN 202267583 U CN202267583 U CN 202267583U
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Abstract
The utility model relates to a simple air tightness performance test device for air conditioning units of high speed trains, which comprises filters, floater flow meters, manual valves, high pressure air pumps, a frequency converter, a pressure meter and a timer. Two high pressure air pumps are connected in parallel, inlets of the high pressure air pumps are respectively connected with a negative pressure connector through three manual valves, three floater flow meters and three filters, and outlets of the high pressure air pumps are accessed into a tested air conditioning unit through a positive pressure connector. A constant air quantity test of the simple air tightness performance test device is that the tested air conditioning unit is pressurized or vacuumized through the test device, output power of the frequency converter is adjusted to enable pressure to be maintained in a designated value and enable the pressure to be in a stable state within appointed time, and leakage quantity under the pressure can be read through the flow meters. A pressure maintaining test is that the tested air conditioning unit is pressurized or vacuumized through the test device; when pressure in the tested air conditioning unit reaches the designated value, the test device is closed, a pipeline valve is pressurized, and simultaneously users can start timing to measure the time consumed by the air conditioning unit when the pressure decreases from the designated value or increases to the designated value.
Description
Technical field
The utility model relates to a kind of bullet train air-conditioning unit air tightness test device, especially a kind of proving installation with the bullet train air-conditioning unit impermeability performance parameter of deciding wind quantity test and pressurize test.
Background technology
For guaranteeing product quality, ensure the safety of producing, living, the product with closed container character all will carry out sealing property and detect before dispatching from the factory.Air-conditioning system is a totally enclosed circulation system, and is very high to bubble-tight requirement, after leakage rate surpasses certain proportion, not only causes system normally to move, and accident such as can cause that unit burns.Impermeability is the important parameter that guarantees bullet train air-conditioning unit operate as normal, is to improve air-conditioning unit refrigeration and the key that guarantees the air-conditioning unit safety operation.
At present; That weighs train air-conditioning unit impermeability performance decides Specifeca tion speeifications such as air quantity and hold period; Need obtain through experimental test, and existing air-conditioning unit air tightness test device, major part all is to design to the common air-conditioning unit; For bullet train air-conditioning unit, have problems such as complicated operation, precision are not high, inefficiency.
Summary of the invention
The utility model is if supply a kind of bullet train air-conditioning unit impermeability performance Simplified Test Equipment; Make the test of bullet train air-conditioning unit impermeability performance parameter more easy, accurately and efficient, this apparatus structure is simple, easy to operate, test result accurately and reliably.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of bullet train air-conditioning unit impermeability performance Simplified Test Equipment; Comprise filtrator, suspended body flowmeter, manually-operated gate, high pressure air pump, frequency converter, tensimeter and timer; Be characterized in: two high-pressure blast parallels connection of pumps connect, and the import of high pressure air pump is connected with the negative pressure interface with three filtrators through three manually-operated gates, three suspended body flowmeters respectively; Outlet inserts tested air-conditioning unit through positive pressure interface.
During the malleation test, the negative pressure interface is two high-pressure blast pump intakes, and frequency converter and tensimeter are connected the corresponding positive pressure interface of malleation test.
During the negative pressure test, positive pressure interface is two high-pressure blast pump intakes, and frequency converter and tensimeter are connected the corresponding negative pressure interface of negative pressure test.
The sub-flow of three table flotations is counted the suspended body flowmeter of different ranges.
The beneficial effect of the utility model is:
(1) filtrator plays floating dust and the foreign material in the filtered air, guarantees to get into the air quality of air-conditioning unit and the normal operation of blower fan.
(2) suspended body flowmeter plays to measure and makes the air quantity that sucks when reaching specified pressure in the air-conditioning unit; According to the requirement of test, select the suspended body flowmeter of different ranges, to improve data veracity.
(3) manually-operated gate plays the effect that realizes selecting flowmeter.According to the flowmeter of selecting, open corresponding valve, and close the valve that is connected with use traffic meter not, with the accuracy of raising DATA REASONING.
(4) the high pressure air pump plays to blasting air quantity in the air-conditioning unit, makes the pressure in the air-conditioning unit reach designated value, the impermeability of testing air conditioner unit under specified pressure.Adopt two high-pressure blast parallels connection of pumps, make air quantity can satisfy the requirement that reaches specified pressure, and frequency converter is being changed in the small range relatively, thereby make adjusting rapidly, accurately.
(5) the ABB frequency converter plays the rotating speed of regulating the high pressure air pump, thereby changes the air quantity that gets into the air-conditioning unit, makes the pressure in the air-conditioning unit maintain a certain designated value.
(6) tensimeter plays the pressure of measuring in the tested unit, makes it reach designated value.
(7) timer plays carrying out pressurize when test pressure and rises or drop to the time that designated value needs from designated value.
Therefore, the utility model is simple in structure, easy to operate, controllability is good, reliable test result is accurate.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1; The bullet train air-conditioning unit impermeability performance test easy device of the utility model; Major equipment comprises, the suspended body flowmeter of three filtrators 1, three different ranges 2, three manually-operated gates 3, two high pressure air pumps 4, ABB frequency converter 5, a tensimeter 6 and a timer 7.This device mainly comprises two functions: decide wind quantity test and pressurize test.
During the malleation test (Fig. 1); Negative pressure interface-P is the suction inlet of high pressure air pump 4, via floating dust and the foreign material in filtrator 1 filtered air, and the suspended body flowmeter 2 of flowing through; Get into high pressure air pump 4 through valve 3; Insert tested air-conditioning unit through high pressure air pump pressurization back from positive pressure interface+P, select correct pressure-measuring-point+C1, frequency converter 5 is connected the corresponding positive pressure interface+P of malleation test with tensimeter 6.According to the rotating speed of frequency converter 5 adjusting high pressure air pumps 4, observe the force value that tensimeter 6 shows, make the pressure in the tested unit reach designated value.Behind the system stability, the reading of flowmeter 2 is promptly decided air quantity under the force value for this reason.Close high pressure air pump 4 and with flowmeter 2 with respect to valve 3, open timer 7 simultaneously, by the time pressure is reduced to designated value, the time that timer 7 records is hold period.
When carrying out the negative pressure test, positive pressure interface+P is the suction inlet of high pressure air pump 4, and frequency converter 5 is connected the corresponding negative pressure interface-P of negative pressure test with tensimeter 6, and other are identical with the malleation test.Pressure-measuring-point-C2 and+C1 are arranged in the import and the outlet of high pressure air pump 4, ignore the resistance of pipeline, and the pressure that the measuring point place records is the pressure in the tested air-conditioning unit.
Claims (4)
1. bullet train air-conditioning unit impermeability performance Simplified Test Equipment; Comprise filtrator (1), suspended body flowmeter (2), manually-operated gate (3), high pressure air pump (4), frequency converter (5), tensimeter (6) and timer (7); It is characterized in that: two said high pressure air pumps (4) are connected in parallel, and the import of high pressure air pump (4) (P) is connected with the negative pressure interface with three filtrators (1) through three manually-operated gates (3), three suspended body flowmeters (2) respectively; Outlet through positive pressure interface (+P) insert tested air-conditioning unit.
2. bullet train air-conditioning unit impermeability performance Simplified Test Equipment according to claim 1; It is characterized in that: during the malleation test; Said negative pressure interface (P) be the suction inlet of two high pressure air pumps (4), frequency converter (5) and tensimeter (6) be connected the corresponding positive pressure interface of malleation test (+P).
3. bullet train air-conditioning unit impermeability performance Simplified Test Equipment according to claim 1; It is characterized in that: during the negative pressure test; Positive pressure interface (+P) be the suction inlet of two high pressure air pumps (4), frequency converter (5) and tensimeter (6) are connected the corresponding negative pressure interface of negative pressure test (P).
4. bullet train air-conditioning unit impermeability performance Simplified Test Equipment according to claim 1, it is characterized in that: three said suspended body flowmeters (2) are the suspended body flowmeter of different ranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203079905U CN202267583U (en) | 2011-08-23 | 2011-08-23 | Simple air tightness performance test device for air conditioning units of high speed trains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203079905U CN202267583U (en) | 2011-08-23 | 2011-08-23 | Simple air tightness performance test device for air conditioning units of high speed trains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267583U true CN202267583U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203079905U Expired - Fee Related CN202267583U (en) | 2011-08-23 | 2011-08-23 | Simple air tightness performance test device for air conditioning units of high speed trains |
Country Status (1)
| Country | Link |
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| CN (1) | CN202267583U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674587A (en) * | 2012-09-13 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Test system and method for detection of air conditioning system |
| CN109307575A (en) * | 2018-12-03 | 2019-02-05 | 金鑫美莱克空调系统（无锡）有限公司 | Rail traffic air-conditioning system airtight detecting apparatus and method |
| CN112903209A (en) * | 2021-02-08 | 2021-06-04 | 陕西长岭特种设备股份有限公司 | Air tightness detection method for shelter air conditioning equipment |
| CN114323453A (en) * | 2021-12-29 | 2022-04-12 | 武汉泰格尔科技发展有限公司 | Negative pressure test device in cabin and operation method thereof |
-
2011
- 2011-08-23 CN CN2011203079905U patent/CN202267583U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674587A (en) * | 2012-09-13 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Test system and method for detection of air conditioning system |
| CN103674587B (en) * | 2012-09-13 | 2016-04-20 | 中车青岛四方机车车辆股份有限公司 | Air-conditioning system detection experiment system and test method |
| CN109307575A (en) * | 2018-12-03 | 2019-02-05 | 金鑫美莱克空调系统（无锡）有限公司 | Rail traffic air-conditioning system airtight detecting apparatus and method |
| CN112903209A (en) * | 2021-02-08 | 2021-06-04 | 陕西长岭特种设备股份有限公司 | Air tightness detection method for shelter air conditioning equipment |
| CN114323453A (en) * | 2021-12-29 | 2022-04-12 | 武汉泰格尔科技发展有限公司 | Negative pressure test device in cabin and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20180823 |