CN104943704B - A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function - Google Patents
A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function Download PDFInfo
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- CN104943704B CN104943704B CN201510321913.8A CN201510321913A CN104943704B CN 104943704 B CN104943704 B CN 104943704B CN 201510321913 A CN201510321913 A CN 201510321913A CN 104943704 B CN104943704 B CN 104943704B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
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Abstract
A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function, is related to the control method of rail traffic vehicles air-conditioning equipment, more particularly to a kind of control method that in-car dehumidifying is carried out by freezing.The control system of railway vehicle air conditioner obtains the temperature and humidity in compartment in real time, refrigeration mode and air vent mode are changed according to the temperature index of setting, it is characterized in that, the temperature index and humidity index of the control system storage setting of air-conditioning, comprehensive descision is generated according to the temperature and humidity in the compartment obtained in real time, comprised the following steps during operation：When A, air-conditioning open machine operation first, if the temperature that humidity is more than in humidity index and compartment in compartment is less than temperature index, temperature index is reduced N DEG C；B, when air-conditioning according to temperature control, it is necessary to when switching to air vent mode by refrigeration mode, carry out comprehensive descision, if comprehensive descision is set up, vehicle interior temperature index reduced N DEG C；C, when in compartment humidity be less than or equal to humidity index when, temperature index is reverted to the value of storage；The process of comprehensive descision includes：If humidity is more than humidity index in compartment, and temperature index is not reduced, and comprehensive descision is set up.
Description
Technical field
In-car is carried out the present invention relates to the control method of rail traffic vehicles air-conditioning equipment, more particularly to a kind of refrigeration that passes through
The control method of dehumidifying.
Background technology
Current track vehicular traffic air-conditioning system, especially for the vehicle air conditioning with dehumidification requirements, when in-car is wet
When degree is higher than humidity set point, air-conditioning is opened full cold mode and dehumidified, only when vehicle interior temperature reaches the temperature limiting of setting
（The temperature limiting is set for compressor low-temperature protection, less than in-car target temperature）, or vehicle humidity is less than humidity
During setting value, air-conditioning switchs to normal temperature control model.When being dehumidified using this method, if in-car thermic load is small, and
Humidity is persistently higher than setting value, and air-conditioner continuous operates in full cold mode, vehicle interior temperature can be caused to reduce rapidly, deviates target temperature
Degree.
For rail traffic vehicles air-conditioning system, there are following characteristics：Vehicle in the process of running, the environmental change outside car
It is larger, it may be possible in platform, in tunnel, it is also possible to overhead.According further to the difference of the volume of the flow of passengers, in-car thermic load difference is very
Greatly；Compressor is provided with minimum run time, to ensure compressor oil return.
Chinese patent（CN 101878398 B）A kind of air conditioning apparatus is disclosed, is estimated according to the temperature of indoor heat converter
The humidity and target humidity value of meter are compared, and realize the comfortable air conditioner surroundings of humidity, but the invention is primary concern is that interior
Air-conditioning, does not account for the characteristic of this high-speed cruising closing space of rail transit cars.
The content of the invention
Vehicle humidity can be controlled it is an object of the present invention to provide one kind, again vehicle interior temperature can be made to be maintained at one
Near rational target temperature, while protecting the method for compressor of air conditioner.
To achieve the above object, the technical solution adopted by the present invention is：A kind of railway vehicle air conditioner is real by refrigerating function
The method of existing humid control, the control system of railway vehicle air conditioner obtains the temperature and humidity in compartment in real time, according to setting
Temperature index changes refrigeration mode and air vent mode, it is critical that the temperature index of the control system storage setting of air-conditioning and wet
Index is spent, comprehensive descision is generated according to the temperature and humidity in the compartment obtained in real time, comprised the following steps during operation：
When A, air-conditioning open machine operation first, if the temperature that humidity is more than in humidity index and compartment in compartment is less than temperature
Index, N DEG C is reduced by temperature index；
B, when air-conditioning according to temperature control, it is necessary to when switching to air vent mode by refrigeration mode, if comprehensive descision is set up,
Vehicle interior temperature index is reduced N DEG C；
C, when in compartment humidity be less than or equal to humidity index when, temperature index is reverted to the value of storage；
The process of comprehensive descision includes：
If humidity is more than humidity index in compartment, and temperature index is not reduced, and comprehensive descision is set up.
Further, N=1.
In air-conditioning initial start, if temperature is less than temperature index in compartment, air-conditioning will operate in logical under normal circumstances
Wind pattern, if now humidity is more than humidity index in compartment, reduces temperature index, and air-conditioning is by vehicle interior temperature value and new temperature
Degree index is compared, and such as vehicle interior temperature is higher than new temperature index, and refrigeration mode can be transferred to automatically, is dehumidified.Work as in-car
When temperature is less than new temperature index, air-conditioning can switch to ventilation automatically, now, and in-car actual temperature is only below former in-car positive normal temperature
1 DEG C of index is spent, vehicle interior temperature will not be caused too low.
In the running of air-conditioning, if operation of air conditioner is in any normal refrigerating mode, because refrigeration has in itself
Dehumidification function, even if in-car now has dehumidification, air-conditioning also keeps present mode to run, without considering humid control.
When air-conditioning according to normal temperature control, it is necessary to when switching to air vent mode by refrigeration mode, by vehicle humidity value with it is wet
Degree index is compared, if vehicle humidity is more than humidity index（When having dehumidification）, then temperature index is reduced by 1
℃.Now air-conditioning can continue to put into refrigeration mode, to be dehumidified.But when vehicle interior temperature is again below new temperature index,
Air-conditioning can switch to air vent mode automatically, now, and in-car actual temperature is only below former in-car 1 DEG C of normal temperature index, will not cause
Vehicle interior temperature is too low.
Using the present invention, improved first in air-conditioning initial start, air-conditioning is first on startup in the technical program
The mode of operation that first need to currently enter automatically according to temperature and humidity condition judgment, i.e. refrigeration mode or air vent mode, can be prevented
Vehicle thermic load hour, starting of air conditioner is to enter refrigeration mode, and compressor operating is limited by The shortest operation time again, and is caused
The problem of guest room actual temperature deviates target temperature；In addition, when air-conditioning will turn ventilation by refrigeration, judging damp condition, such as needing
Dehumidifying, then directly keep refrigeration mode operation, can effectively prevent high frequent start and stop, extend compressor service life.
Brief description of the drawings
Fig. 1 is the control process block diagram of the present invention.
Embodiment
A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function, the control system of railway vehicle air conditioner
The temperature and humidity in compartment is obtained in real time, and refrigeration mode and air vent mode, the control of air-conditioning are changed according to the temperature index of setting
The temperature index and humidity index of system storage setting processed, sentence according to the temperature and humidity generation synthesis in the compartment obtained in real time
It is disconnected, comprise the following steps during operation：
When A, air-conditioning open machine operation first, if the temperature that humidity is more than in humidity index and compartment in compartment is less than temperature
Index, N DEG C is reduced by temperature index；
B, when air-conditioning according to temperature control, it is necessary to when switching to air vent mode by refrigeration mode, if comprehensive descision is set up,
Vehicle interior temperature index is reduced N DEG C；
C, when in compartment humidity be less than or equal to humidity index when, temperature index is reverted to the value of storage；
The process of comprehensive descision includes：If humidity is more than humidity index in compartment, and temperature index is not reduced, comprehensive
Close and judge to set up.
In order to control the excursion of temperature, new temperature index is lower than the temperature index of setting 1 DEG C, both N=1.
In view of sensitivity of some regions to humidity, dehumidification function can be further enhanced：If temperature index has dropped
It is low, and humidity is higher by humidity index 20% in compartment, comprehensive descision is set up.Humidity is 70% in such as compartment, and humidity index is 40%,
Then reduced again on the basis of decreased temperature index once, further dehumidifying.
For example, the temperature index such as set is 25 DEG C, when temperature is down to 25 DEG C in compartment, and air-conditioning will enter ventilation
Humidity is more than humidity index in pattern, but compartment now, temperature index at this moment is adjusted into 24 DEG C, air-conditioning continues to operate in system
Chill formula, lasting dehumidifying；When temperature is down to 24 DEG C in compartment, air-conditioning will enter humidity in air vent mode, but compartment now
More than the 20% of humidity index, temperature index is at this moment adjusted to 23 DEG C, air-conditioning continues to operate in refrigeration mode, lasting dehumidifying.This
In 20% just for one of specific region value, other numerical value can be set to according to the actual requirements.
The discomfort of people can be caused too much by declining in view of temperature index, in the scenario above, when turning down temperature index again,
It can reduce in N/2 DEG C, upper example, when temperature is down to 24 DEG C in compartment, air-conditioning will enter in air vent mode, but compartment now
Humidity is more than the 20% of humidity index, and temperature index at this moment is adjusted into 23.5 DEG C.
When train is stopped with centre in operation, external environment condition has very big difference.Train dwelling and when opening car door,
Connected in compartment with outside, internal and external temperature and humidity difference are all very big, if now routinely controlled, are likely to result in sky
Adjust unit frequent transitions function.
In order to adapt to this case, the control system connection train control system of air-conditioning obtains the open and-shut mode of car door,
The process of comprehensive descision also includes：If car door is in opening, comprehensive descision is set up.
In view of following situations：The humidity of vehicle exterior is less than the humidity of interior, can also now be reached by changing wind
To the effect of dehumidifying, therefore, in the present invention, the control system connection train control system of air-conditioning obtains vehicle exterior in real time
Humidity, the process of comprehensive descision also includes：If the humidity of vehicle exterior be less than interior humidity, comprehensive descision not into
It is vertical.
When air conditioner needs to switch to air vent mode by refrigeration mode, if interior humidity does not reach requirement, but outside
The humidity of portion's environment is less than the humidity in compartment, then reaches dehumidifying purpose by divulging information rather than freezing.
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, in air-conditioning initial start, if refrigeration mode will be entered, without judging, refrigeration mould is directly entered
Formula；
If will enter humidity in air vent mode, and compartment is not more than humidity index, air vent mode is directly entered, otherwise：
Judge whether decreased temperature index, if do not reduced：
Judge whether humidity is more than humidity in compartment, if high humidity outside compartment, temperature index subtracts 1, air-conditioning root outside compartment
Enter relevant work pattern according to temperature in current compartment and new temperature index, both into refrigeration mode, otherwise, into ventilation mould
Formula；
If decreased temperature index, judges whether humidity is higher by humidity index 20% in compartment, if set up, judge
Whether humidity is more than humidity in compartment outside compartment, if high humidity outside compartment, temperature index subtracts 1, air-conditioning is according in current compartment
Temperature and new temperature index enter relevant work pattern, both into refrigeration mode, otherwise, into air vent mode；
If humidity is not higher by humidity index 20% in compartment, judge whether car door is opened, if opened, temperature index
Subtract 1, air-conditioning enters relevant work pattern according to temperature in current compartment and new temperature index, both into refrigeration mode, otherwise,
Into air vent mode；
Judge whether to reach dehumidification requirements, both whether humidity was less than humidity index in compartment, if reaching requirement, recovered to refer to
Mark temperature.
Claims (5)
1. a kind of method that railway vehicle air conditioner realizes humid control by refrigerating function, the control system of railway vehicle air conditioner is real
When obtain temperature and humidity in compartment, refrigeration mode and air vent mode are changed according to the temperature index of setting, it is characterised in that
The temperature index and humidity index of the control system storage setting of air-conditioning, give birth to according to the temperature and humidity in the compartment obtained in real time
Into comprehensive descision, comprise the following steps during operation：
When A, air-conditioning open machine operation first, if the temperature that humidity is more than in humidity index and compartment in compartment refers to less than temperature
Mark, N DEG C is reduced by temperature index；Vehicle interior temperature value is compared by air-conditioning with new temperature index, and vehicle interior temperature is higher than new
Temperature index, is transferred to refrigeration mode, is dehumidified；When vehicle interior temperature is less than new temperature index, air-conditioning switchs to ventilation；
B, when air-conditioning according to temperature control, it is necessary to when switching to air vent mode by refrigeration mode, comprehensive descision is carried out, if synthesis is sentenced
Be broken into it is vertical, then by vehicle interior temperature index reduce N DEG C；
C, when in compartment humidity be less than or equal to humidity index when, temperature index is reverted to the value of storage；
The process of comprehensive descision includes：
If humidity is more than humidity index in compartment, and temperature index is not reduced, and comprehensive descision is set up；
The control system connection train control system of air-conditioning, obtains the humidity of vehicle exterior, the process of comprehensive descision is also wrapped in real time
Include：If the humidity of vehicle exterior is less than the humidity of interior, comprehensive descision is invalid.
2. the method that a kind of railway vehicle air conditioner according to claim 1 realizes humid control by refrigerating function, it is special
Levy and be：The process of comprehensive descision also includes：
If temperature index is decreased, and humidity is higher by humidity index 20% in compartment, and comprehensive descision is set up.
3. the method that a kind of railway vehicle air conditioner according to claim 1 realizes humid control by refrigerating function, it is special
Levy and be：The control system connection train control system of air-conditioning, obtains the open and-shut mode of car door, the process of comprehensive descision is also wrapped
Include：If car door is in opening, comprehensive descision is set up.
4. the method that a kind of railway vehicle air conditioner according to claim 1 realizes humid control by refrigerating function, it is special
Levy and be：N value is 1.
5. the method that a kind of railway vehicle air conditioner according to claim 1 realizes humid control by refrigerating function, it is special
Levy and be：The process of comprehensive descision also includes：
If temperature index is decreased, and humidity is higher by humidity index 20% in compartment, and comprehensive descision is set up；
In step B, vehicle interior temperature index reduces N/2 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510321913.8A CN104943704B (en) | 2015-06-12 | 2015-06-12 | A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function |
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| CN201510321913.8A CN104943704B (en) | 2015-06-12 | 2015-06-12 | A kind of method that railway vehicle air conditioner realizes humid control by refrigerating function |
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| CN104943704B true CN104943704B (en) | 2017-08-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109263671B (en) * | 2018-09-17 | 2020-03-31 | 山东朗进科技股份有限公司 | Dehumidification control method of vehicle variable frequency air conditioner |
| CN109263673B (en) * | 2018-10-16 | 2019-10-01 | 石家庄国祥运输设备有限公司 | The autocontrol method of railway vehicle air conditioner system |
| CN111765610B (en) * | 2020-07-09 | 2021-07-23 | 苏州智数家建筑科技有限公司 | Indoor humidity control method |
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| JP4052319B2 (en) * | 2005-05-24 | 2008-02-27 | ダイキン工業株式会社 | Air conditioning system |
| JP4479783B2 (en) * | 2007-11-28 | 2010-06-09 | ダイキン工業株式会社 | Air conditioner |
| US8892277B2 (en) * | 2009-07-22 | 2014-11-18 | Mitsubishi Electric Corporation | Vehicle air-conditioning control method |
| CN102072548B (en) * | 2010-12-30 | 2013-03-20 | 海信（山东）空调有限公司 | Air conditioning time sharing temperature-humidity independent control method and device and air conditioner |
| JP6192351B2 (en) * | 2013-05-10 | 2017-09-06 | 三菱電機株式会社 | Air conditioning system |
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