CN103528166B - The testing method of air-conditioning system cold-starting - Google Patents
The testing method of air-conditioning system cold-starting Download PDFInfo
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- CN103528166B CN103528166B CN201310487426.XA CN201310487426A CN103528166B CN 103528166 B CN103528166 B CN 103528166B CN 201310487426 A CN201310487426 A CN 201310487426A CN 103528166 B CN103528166 B CN 103528166B
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Abstract
The present invention provides the testing method of a kind of air-conditioning system cold-starting, is statically placed in low temperature environment to run by air conditioning unit, during the minimum temperature that the temperature of saturation in air conditioning unit is run close to it, by air conditioning unit shifting to having in its minimum working temperature environment; The temperature of low temperature environment is lower than air conditioning unit minimum working temperature. By by the air conditioning unit low temperature environment being placed in the minimum temperature lower than its work, owing to air conditioning unit interior temperature and outside atmosphere have the bigger temperature difference, therefore in it, the travelling speed of refrigerant is faster, the temperature of saturation of refrigerant work can be reached faster, then by air conditioning unit shifting in the minimum temperature environment of its normal operation, thus low-temperature cool starting can be realized faster, working efficiency improves.
Description
Technical field
The present invention relates to air conditioner test technical field, more specifically, it relates to the testing method of a kind of air-conditioning system cold-starting.
Background technology
Air-conditioning often can run in actual application shuts down the situation left standstill evening in winter. Air conditioning unit startup after standing certain time under low-temperature condition, there is the phenomenon that the low pressure of short period of time is too low in unit, and much air conditioning unit; especially business air conditioner unit is all protected with low pressure; when unit low pressure is too low, unit meeting stopping alarm, affects client and uses.
For ensureing air conditioning unit normal operation at low ambient temperatures, air conditioning unit needs is carried out cold-starting test by businessman, to be tested by normal startup under its low temperature. Under normal circumstances, adopt and put air conditioning unit in low temperature test indoor, after leaving standstill exceedance hour under the air conditioning unit operation lowest temperature operating mode specified, restart checking scheme. Air conditioning unit time of repose is determined by air conditioning unit equilibrium pressure, when the temperature of saturation that air conditioning unit equilibrium pressure is corresponding equals envrionment temperature, then can start unit, carry out the checking of scheme. If can not successfully starting air conditioning unit, then need to restart air conditioning unit need to again leaving standstill, result in laboratory test efficiency low, air conditioning unit development progress is slow.
Therefore, how to improve the efficiency of air conditioning unit cold-starting test, it is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the present invention provides the testing method of a kind of air-conditioning system cold-starting, to realize the efficiency improving the test of air conditioning unit cold-starting.
In order to achieve the above object, the present invention provides following technical scheme:
A testing method for air-conditioning system cold-starting, by air conditioning unit be statically placed in low temperature environment run, when described air conditioning unit in temperature of saturation run close to it minimum temperature time, by described air conditioning unit shifting to having in its minimum working temperature environment;
The temperature of described low temperature environment is lower than described air conditioning unit minimum working temperature, and described temperature of saturation is the temperature of saturation that the equilibrium pressure after described air conditioning unit interior refrigerant migration is corresponding.
Preferably, in the testing method of above-mentioned air-conditioning system cold-starting, the temperature of described low temperature environment is lower than described air conditioning unit minimum working temperature 5 DEG C.
Preferably, in the testing method of above-mentioned air-conditioning system cold-starting, described air conditioning unit to be positioned over the adjustable low temperature test of temperature indoor.
Preferably, in the testing method of above-mentioned air-conditioning system cold-starting, described air conditioning unit when its temperature of saturation equals the minimum temperature that it runs, then migrate to and have in its minimum temperature environment.
The testing method of air-conditioning system cold-starting provided by the invention, is statically placed in low temperature environment to run by air conditioning unit, during the minimum temperature that the temperature of saturation in air conditioning unit is run close to it, by air conditioning unit shifting to having in its minimum working temperature environment; The temperature of low temperature environment is lower than air conditioning unit minimum working temperature. By by the air conditioning unit low temperature environment being placed in the minimum temperature lower than its work, owing to air conditioning unit interior temperature and outside atmosphere have the bigger temperature difference, therefore in it, the travelling speed of refrigerant is faster, the temperature of saturation of refrigerant work can be reached faster, then by air conditioning unit shifting in the minimum temperature environment of its normal operation, thus low-temperature cool starting can be realized faster, working efficiency improves.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schema of the testing method of air-conditioning system cold-starting provided by the invention.
Embodiment
The present invention discloses the testing method of a kind of air-conditioning system cold-starting, it is to increase the efficiency of air conditioning unit cold-starting test.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on embodiments of the invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, Fig. 1 is the schema of the testing method of air-conditioning system cold-starting provided by the invention.
The present invention provides the testing method of a kind of air-conditioning system cold-starting, comprises the steps:
S01, air conditioning unit it is placed in low temperature environment.
It is statically placed in low temperature environment to run, simulate air conditioning unit cold-starting environment by air conditioning unit.
S02, air conditioning unit temperature of saturation are close to its minimum working temperature.
During the minimum temperature that the temperature of saturation in air conditioning unit is run close to it, illustrate that now air conditioning unit being about to reaches its cold-starting environment, air conditioning unit startup test can be carried out.
In S03, air conditioning unit shifting to minimum working temperature environment.
By air conditioning unit shifting to having in its minimum working temperature environment; The temperature of low temperature environment is lower than air conditioning unit minimum working temperature. By by the air conditioning unit low temperature environment being placed in the minimum temperature lower than its work, owing to air conditioning unit interior temperature and outside atmosphere have the bigger temperature difference, therefore in it, the travelling speed of refrigerant is faster, the temperature of saturation of refrigerant work can be reached faster, then by air conditioning unit shifting in the minimum temperature environment of its normal operation, thus low-temperature cool starting can be realized faster, working efficiency improves.
In the present invention one specific embodiment, the temperature of low temperature environment is lower than air conditioning unit minimum working temperature 5 DEG C. The setting of low temperature environment adds the temperature difference in air conditioning unit and outside atmosphere, it is possible to increase the travelling speed of refrigerant. Too low temperature arranges the waste causing the energy, by the temperature head in the minimum environment reasonably arranging low temperature environment and air conditioning unit formulation, namely can realize increasing the object of the temperature difference, it is possible to realize making full use of energy, avoid waste.
In the present invention one specific embodiment, temperature of saturation is the temperature of saturation that the equilibrium pressure after air conditioning unit interior refrigerant migration is corresponding. Air conditioning unit due to the temperature difference in internal and external environment; after falling temperature of saturation; by starting test, can it be tested in normal startup in low temperature environment, air conditioning unit when cold-starting to ensure, there will not be the problem due to the too low generation stopping alarm of low pressure. The air conditioning unit temperature that reaches capacity is the condition that it carries out starting test, and this temperature of saturation is after refrigerant migration, the temperature of air conditioning unit inside corresponding during the pressure equilibrium of refrigerant.
In the present invention one specific embodiment, air conditioning unit to be positioned over the adjustable low temperature test of temperature indoor. Can air conditioning unit it normally be started in low temperature environment to detect by starting test, this detection carries out in low temperature test indoor, Properties of Air-conditioning Unit is detected. Low temperature test chambers temp is regulated by temperature, simulates the condition of air conditioning unit work, meets test request.
In the present invention one specific embodiment, air conditioning unit when its temperature of saturation equals the minimum temperature that it runs, then migrate to and have in its minimum temperature environment. Air conditioning unit it is placed on lower than in the environment of the minimum temperature operating mode of its work, now refrigerant has travelling speed faster, along with the migration of refrigerant, its temperature of saturation, close to minimum temperature, keeps low temperature environment, and refrigerant migration speed becomes slow gradually, when temperature of saturation reaches preset requirement, move again in the minimum temperature environment preset, decrease air conditioning unit in when not arriving temperature of saturation, refrigerant needs to continue migration increases the air conditioning unit refrigerant migration time.
By being placed into lower than in the low temperature environment of the default minimum temperature operating mode of air conditioning unit work by air conditioning unit, to air conditioning unit carry out cold-starting test time, by arranging bigger circumstance of temperature difference, air conditioning unit interior refrigerant is made to have travelling speed faster, thus decrease air conditioning unit in laboratory environment storage period, the temperature of saturation corresponding with refrigerant equilibrium pressure can be reached faster, thus improve the test efficiency in laboratory.
In this specification sheets, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment emphasis illustrated is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. the testing method of an air-conditioning system cold-starting, it is characterized in that, by air conditioning unit be statically placed in low temperature environment run, when described air conditioning unit in temperature of saturation run close to it minimum temperature time, by described air conditioning unit shifting to having in its minimum working temperature environment;
The temperature of described low temperature environment is lower than described air conditioning unit minimum working temperature, and described temperature of saturation is the temperature of saturation that the equilibrium pressure after described air conditioning unit interior refrigerant migration is corresponding.
2. the testing method of air-conditioning system cold-starting according to claim 1, it is characterised in that, the temperature of described low temperature environment is lower than described air conditioning unit minimum working temperature 5 DEG C.
3. the testing method of air-conditioning system cold-starting according to claim 1, it is characterised in that, it is described that air conditioning unit to be positioned over the adjustable low temperature test of temperature indoor.
4. the testing method of air-conditioning system cold-starting according to claim 1, it is characterised in that, described air conditioning unit when its temperature of saturation equals the minimum temperature that it runs, then migrate to and have in its minimum temperature environment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310487426.XA CN103528166B (en) | 2013-10-17 | 2013-10-17 | The testing method of air-conditioning system cold-starting |
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| CN201310487426.XA CN103528166B (en) | 2013-10-17 | 2013-10-17 | The testing method of air-conditioning system cold-starting |
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| CN103528166A CN103528166A (en) | 2014-01-22 |
| CN103528166B true CN103528166B (en) | 2016-06-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2337814A (en) * | 1998-05-29 | 1999-12-01 | Roberts And Roberts Senior Lim | Variation simulator for testing air conditioning plant control systems |
| CN1414348A (en) * | 2001-10-23 | 2003-04-30 | 广东科龙电器股份有限公司 | Method of shortening the testing time of air conditioner reliability |
| CN1963323A (en) * | 2005-11-08 | 2007-05-16 | 乐金电子(天津)电器有限公司 | Start-up method of air-conditioner in low temperature circumstance |
| CN202229357U (en) * | 2011-08-26 | 2012-05-23 | 深圳麦克维尔空调有限公司 | Low temperature starting device of air conditioning system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145949A (en) * | 1983-02-09 | 1984-08-21 | Nippon Saamic:Kk | Wide area temperature and humidity atmosphere testing device |
| KR101217806B1 (en) * | 2008-12-19 | 2013-01-03 | 한국전자통신연구원 | Chamber of environmental test with moving type panel and Method for driving the same |
-
2013
- 2013-10-17 CN CN201310487426.XA patent/CN103528166B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2337814A (en) * | 1998-05-29 | 1999-12-01 | Roberts And Roberts Senior Lim | Variation simulator for testing air conditioning plant control systems |
| CN1414348A (en) * | 2001-10-23 | 2003-04-30 | 广东科龙电器股份有限公司 | Method of shortening the testing time of air conditioner reliability |
| CN1963323A (en) * | 2005-11-08 | 2007-05-16 | 乐金电子(天津)电器有限公司 | Start-up method of air-conditioner in low temperature circumstance |
| CN202229357U (en) * | 2011-08-26 | 2012-05-23 | 深圳麦克维尔空调有限公司 | Low temperature starting device of air conditioning system |
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| CN103528166A (en) | 2014-01-22 |
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