CN105083312B - A kind of method of prevention railway vehicle air conditioner system compressors low voltage failure - Google Patents
A kind of method of prevention railway vehicle air conditioner system compressors low voltage failure Download PDFInfo
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- CN105083312B CN105083312B CN201510380210.2A CN201510380210A CN105083312B CN 105083312 B CN105083312 B CN 105083312B CN 201510380210 A CN201510380210 A CN 201510380210A CN 105083312 B CN105083312 B CN 105083312B
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- voltage failure
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Abstract
The invention discloses a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure, it is related to rail traffic vehicles air conditioner technical field, based on the air-conditioning system with refrigerating function, this method comprises the following steps：（1）, set point of temperature value T outside setting rail vehicle；（2）, air-conditioner control system monitor the outer temperature T of rail vehicle in real time0, and compared with set point of temperature value T；（3）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, then the operational mode of current air-conditioning system is judged；（4）If, the operational mode of current air-conditioning system be half cold or weak cold pattern, the low air quantity operation of air-conditioner control system forced condensation blower fan.The beneficial effects of the invention are as follows：Combining environmental temperature height, by forcing air conditioner condensation wind low amounts to be run, the compressor low voltage failure to air-conditioning system takes measures in advance, it is to avoid it is passive that low voltage failure is caused after occurring.
Description
Technical field
The present invention relates to rail traffic vehicles air conditioner technical field, more particularly to one kind is by adjusting air conditioner condensation wind
The method that the mode of amount size carrys out the generation of prevention system low voltage failure.
Background technology
Current track vehicular traffic air-conditioning system, is typically provided low pressure switch and is protected as the low pressure of refrigeration system
Shield.When the environment temperature that air-conditioning system is run is too low, refrigerant activity reduction in system, compressor return air insufficient pressure, now
Low pressure switch motion, control system cut-out compressor operating, and it is determined as low voltage failure.If system pressure can be in regulation
Time in recover normal, then low pressure switch resets, and compressor can put into operation again.Nevertheless, in low voltage failure
Before recovery, if now passenger inside the vehicle is more, compressor shutdown will cause vehicle interior temperature and humidity to raise, and influence comfortableness.
In addition, some rail traffic vehicles air-conditionings are also used by low voltage failure number of times come the side of locked compressor operating
Formula.But, when the environment temperature of air-conditioning system is too low, because control system does not take related precautionary measures, low pressure event will be easily caused
Barrier frequently occurs, and when reaching the defined number of stoppages, control system is by locked failure and cuts off compressor, even if low pressure
Switch is follow-up to recover normal, also forbids compressor to be again started up, has had a strong impact on passenger comfort.
The content of the invention
The problem to be solved in the present invention is to provide a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure,
When the environment temperature that air-conditioning system is run is less than set point of temperature value, the low air quantity operation of air-conditioner control system control condensating wind, with
Compressor return air pressure is lifted, low voltage failure is prevented.
In order to solve the above technical problems, the technical solution adopted by the present invention is：One kind prevention railway vehicle air conditioner system pressure
The method of contracting machine low voltage failure, based on the air-conditioning system with refrigerating function, its key is that this method comprises the following steps：
（1）, set point of temperature value T outside setting rail vehicle；
（2）, air-conditioner control system monitor the outer temperature T of rail vehicle in real time0, and compared with set point of temperature value T；
（3）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, then the operational mode of current air-conditioning system is judged；
（4）If, the operational mode of current air-conditioning system be half cold or weak cold pattern, air-conditioner control system forced condensation blower fan
Low air quantity operation.
Further, it is additionally included in step（5）, the low air quantity of air-conditioner control system forced condensation blower fan run to rail vehicle
Outer temperature T0Higher than after set point of temperature value T or when air-conditioning system operational mode is by half is cold or weak cold pattern switchs to complete cold or strong chill
During formula, the high air quantity operation of air-conditioner control system forced condensation blower fan.
Further, in addition to step（6）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, no matter air-conditioning system
Which kind of pattern is operated in, air-conditioner control system detects compressor return air end low voltage failure, then the low air quantity fortune of forced condensation blower fan
OK, until after one section of stipulated time t of continuous and steady operation, condensation fan recovers to normal air quantity to run.
Further, in addition to step（7）, no matter the outer temperature T of rail vehicle0It is worth to be how many, also no matter air-conditioning system is transported
Row is in which kind of pattern, and air-conditioner control system detects compressor air-discharging end high voltage fault, then the high air quantity operation of forced condensation blower fan,
Until after one section of stipulated time t of continuous and steady operation, condensation fan recovers to normal air quantity to run.
The beneficial effects of the invention are as follows：Combining environmental temperature height, can be to sky by forcing air conditioner condensation wind low amounts to be run
The low voltage failure of adjusting system compressor takes measures in advance；, initiative forward-looking to the judgement of low voltage failure and preventative,
Can avoid low voltage failure occur after cause it is passive.
The present invention is described in detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the method for prevention railway vehicle air conditioner system compressors low voltage failure of the present invention.
Embodiment
Referring to accompanying drawing, the invention provides a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure, base
In the air-conditioning system with refrigerating function, this method comprises the following steps：
（1）, set point of temperature value T outside setting rail vehicle；
（2）, air-conditioner control system monitor the outer temperature T of rail vehicle in real time0, and compared with set point of temperature value T；
（3）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, then the operational mode of current air-conditioning system is judged；
（4）If, the operational mode of current air-conditioning system be half cold or weak cold pattern, air-conditioner control system forced condensation blower fan
Low air quantity operation.
It is additionally included in step（5）, the low air quantity of air-conditioner control system forced condensation blower fan run to outside rail vehicle temperature T0
Higher than after set point of temperature value T or when air-conditioning system operational mode by half is cold or weak cold pattern switchs to complete cold or strong chill formula when, it is empty
Adjust the high air quantity operation of control system forced condensation blower fan.
Also include step（6）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, no matter operation of air conditioner is in which kind of mould
Formula, air-conditioner control system detects compressor return air end low voltage failure, then the low air quantity operation of forced condensation blower fan, until continuous steady
Surely run after one section of stipulated time t, condensation fan can recover to normal air quantity to run.
Also include step（7）, no matter the outer temperature T of rail vehicle0It is worth to be how many, also no matter which kind of mould is air-conditioning system operate in
Formula, air-conditioner control system detects compressor air-discharging end high voltage fault, then the high air quantity operation of forced condensation blower fan, until continuous steady
Surely run after one section of stipulated time t, condensation fan can recover to normal air quantity to run.
Above-mentioned air-conditioning system includes two outdoor condensation fans, when the low air quantity operation of air-conditioning system forced condensation blower fan
When, force a condensation fan to be shut down, another continues to run with.
Above-mentioned air-conditioning system can also be including the condensation fan with high and low double speed regulatory function, work as airconditioning control
When the low air quantity of system forced condensation blower fan is run, forced condensation PAU+FCU system to the slow-speed of revolution is run.
The present invention is in the specific implementation：To avoid outer temperature（Environment temperature）It is low to cause system low-voltage failure, work as rail vehicle
Outer temperature T0Less than temperature specifications value T（It is defaulted as 26 DEG C）When, air-conditioner control system pre-cooling precautionary measures, i.e.,：If this
When air-conditioning system operate in half cold or weak cold pattern, then forced condensation blower fan low air quantity operation（For being configured with two condensating winds
The air-conditioning system of machine, then force a condensation fan to be shut down, another continues to run with；Adjusted for being configured with one or more double speed
The air-conditioning system of the condensation fan of section, then force each condensation fan to switch to slow-speed of revolution operation）, to be lifted under low temperature environment
The back pressure of compressor.
Due to the condensation fan low air quantity operation under above-mentioned cryogenic conditions, compensation compressor back pressure simultaneously,
The pressure at expulsion of compressor can be caused moderately to raise（System high pressure side）.To avoid attending to one thing and lose sight of another, prevent air-conditioning system from occurring again
High voltage fault, when air-conditioning system operational mode by half is cold or weak cold pattern switchs to complete cold or strong chill formula when, air-conditioner control system
The high air quantity operation of forced condensation blower fan（Air-conditioning system for being configured with two condensation fans, then force two condensation fan fortune
OK；For the air-conditioning system for the condensation fan for being configured with the regulation of one or more double speed, then each condensation fan is forced to switch to
High rotating speed operation）, the pressure at expulsion to reduce compressor.
In addition, on the basis of above-mentioned technical proposal, in addition to following system pressure control condition：When warm outside rail vehicle
Spend T0During less than temperature specifications value T, no matter which kind of pattern is air-conditioning system operate in, on the premise of using above-mentioned precautionary measures,
Such as air-conditioning system also there occurs low voltage failure really, to prevent from occurring low voltage failure again, as long as low voltage failure occurs once, then
The low air quantity operation of forced condensation blower fan, until continuously one section of stipulated time t of stable operation（It is defaulted as 15 minutes）Afterwards, condensating wind
Machine recovers to normal air quantity to run again；In addition, no matter outer temperature value is how many, also no matter which kind of pattern is air-conditioning system operate in, only
Compressor high voltage fault is wanted to occur once, then the high air quantity operation of forced condensation blower fan, until continuously one section of regulation of stable operation
After time t（It is defaulted as 15 minutes）, condensation fan recover again to normal air quantity run.
Claims (5)
1. a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure, based on the air-conditioning system with refrigerating function
System, it is characterised in that this method comprises the following steps：
（1）, set point of temperature value T outside setting rail vehicle；
（2）, air-conditioner control system monitor the outer temperature T of rail vehicle in real time0, and compared with set point of temperature value T；
（3）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, then the operational mode of current air-conditioning system is judged；
（4）If, the operational mode of current air-conditioning system be half cold or weak cold pattern, the low wind of air-conditioner control system forced condensation blower fan
Amount operation；
（5）, the low air quantity of air-conditioner control system forced condensation blower fan run to outside rail vehicle temperature T0After set point of temperature value T
Or when air-conditioning system operational mode by half is cold or weak cold pattern switchs to complete cold or strong chill formula when, air-conditioner control system forced condensation
The high air quantity operation of blower fan；
（6）If, the outer temperature T of rail vehicle0Less than set point of temperature value T, no matter air-conditioning system operates in which kind of pattern, airconditioning control
System detectio is run to compressor return air end low voltage failure, the then low air quantity of forced condensation blower fan, until one section of continuous and steady operation
After stipulated time t, condensation fan recovers to normal air quantity to run；
（7）, no matter the outer temperature T of rail vehicle0It is worth to be how many, also no matter air-conditioning system operates in which kind of pattern, air-conditioner control system
Compressor air-discharging end high voltage fault is detected, then the high air quantity operation of forced condensation blower fan, until one section of regulation of continuous and steady operation
After time t, condensation fan recovers to normal air quantity to run.
2. a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure according to claim 1, its feature
It is：The air-conditioning system includes two outdoor condensation fans.
3. a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure according to claim 2, its feature
It is：When the low air quantity operation of air-conditioner control system forced condensation blower fan, a condensation fan is forced to be shut down, another is continued to transport
OK.
4. a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure according to claim 1, its feature
It is：The air-conditioning system includes the condensation fan with high and low double speed regulatory function.
5. a kind of method of prevention railway vehicle air conditioner system compressors low voltage failure according to claim 4, its feature
It is：When the low air quantity operation of air-conditioner control system forced condensation blower fan, forced condensation PAU+FCU system to the slow-speed of revolution is run.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510380210.2A CN105083312B (en) | 2015-07-02 | 2015-07-02 | A kind of method of prevention railway vehicle air conditioner system compressors low voltage failure |
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| CN201510380210.2A CN105083312B (en) | 2015-07-02 | 2015-07-02 | A kind of method of prevention railway vehicle air conditioner system compressors low voltage failure |
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| CN105083312A CN105083312A (en) | 2015-11-25 |
| CN105083312B true CN105083312B (en) | 2017-08-25 |
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| WO2019127201A1 (en) * | 2017-12-27 | 2019-07-04 | 中车长春轨道客车股份有限公司 | Rail train and air conditioning control system thereof |
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| CN202264784U (en) * | 2011-08-23 | 2012-06-06 | 上海法维莱交通车辆设备有限公司 | Novel high-speed train air-conditioning system with frequency-variable fans |
| CN202835661U (en) * | 2012-09-29 | 2013-03-27 | 江苏创导空调有限公司 | Air-condition controller for mobile machinery shop |
| CN102967450B (en) * | 2012-10-23 | 2015-04-08 | 宁波奥克斯电气有限公司 | Method for detecting whether outdoor unit check valve of split type air conditioning unit is installed reversely |
| CN103868201A (en) * | 2014-03-21 | 2014-06-18 | 长春轨道客车股份有限公司 | High-speed motor train unit air conditioner control method suitable for high-cold environment |
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