CN101988723A - Natural cooling energy-saving air conditioner and control method thereof - Google Patents
Natural cooling energy-saving air conditioner and control method thereof Download PDFInfo
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- CN101988723A CN101988723A CN 201010552346 CN201010552346A CN101988723A CN 101988723 A CN101988723 A CN 101988723A CN 201010552346 CN201010552346 CN 201010552346 CN 201010552346 A CN201010552346 A CN 201010552346A CN 101988723 A CN101988723 A CN 101988723A
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Abstract
The invention discloses a natural cooling energy-saving air conditioner and a control method thereof. The natural cooling energy-saving air conditioner comprises an indoor fan, an outdoor fan, and a compressor, a condenser, a throttler and an evaporator which are connected in turn to form an enclosed loop; an air bypass pipeline is connected between the inlet and the outlet of the compressor; the throttler is arranged between the condenser and the evaporator; a liquid bypass pipeline is connected between the inlet and the outlet of the throttler; the air bypass pipeline and the liquid bypass pipeline are respectively provided with a solenoid valve component which is connected in parallel with the compressor and the throttler; and a loop heat pipe LHP is formed between the evaporator and the condenser. The solenoid valve components are arranged, when the outdoor temperature is low, a natural cold source can be fully utilized to cool the indoor air through simple switching of the pipelines; therefore, the energy-saving effect is obvious, various problems and hidden troubles caused by low-temperature operation of a refrigeration system of the compressor and frequent start-stop of the compressor can be avoided, and the service life of the compressor can be effectively prolonged.
Description
Technical field
The present invention relates to a kind of natural cooling and energy conserving air conditioner and control method thereof.
Background technology
Because communication apparatus is in the state that runs without interruption the whole year substantially and caloric value is very big, therefore, is used for the air conditioner of occasions such as data center, communication machine room, communication base station, generally need the year round cooling operation, operation energy consumption is big, and seasonal energy efficiency ratio (seer) is low.And, because this type of air-conditioning still needs to start the compressor cooling circulation in the winter of cold, when outdoor environment is crossed when low, the problem of the low excessively feed flow deficiency that causes of condensing pressure appears in compressor refrigeration system easily, and the thermic load of this moment is less, also can cause the frequent start-stop of compressor, not only energy resource consumption is big, and compressor also can reduce service life.Therefore, the reliability of this class air conditioner is difficult to be resolved always, though configuration condensing pressure control system and be design of condenser Multistage Control, when under subzero outdoor environment temperature, moving for a long time, bigger hidden danger is still arranged, and can cause the increase of system cost and the increase of control difficulty.
Chinese patent literature CN10111807Y discloses a kind of energy conservation air conditioning equipment and refrigerating method in 2008 February 6, it is characterized in that: comprise indoor heat exchanger, outdoor heat exchanger, gas piping, liquid line and refrigeration working medium; Described liquid line one end connects described indoor heat exchanger, and the other end connects described outdoor heat exchanger, and described gas piping connects the other two ends of described indoor heat exchanger and outdoor heat exchanger, forms closed loop; Inject described refrigeration working medium in described closed loop, evaporation, condensation by refrigeration working medium come to the communication base station room temperature lowering.But, the air-conditioning equipment that this structure relies on heat exchange of heat pipe to carry out heat transfer free convection fully, its heat exchange efficiency is very low, more can't satisfy the radiating requirements under the hot weather.And, this equipment need exist bigger indoor/outdoor temperature-difference could drive chamber in heat absorption-heat release between regenerator volume's external heat exchanger circulate, under the most of the time, be actually and can't normally move.General and the less reliable of this structure energy-saving effect, while cost of investment height, payoff period is very long.Be necessary to be further improved and perfect.
Summary of the invention
Purpose of the present invention aims to provide the natural cooling and energy conserving air conditioner and the control method thereof of a kind of simple and reasonable, dependable performance, energy-efficient and long service life, to overcome weak point of the prior art.
A kind of natural cooling and energy conserving air conditioner by this purpose design, comprise indoor fan, outdoor fan and the compressor that is in turn connected into closed loop, condenser, flow controller and evaporimeter, be connected with the gas bypass pipeline between the import and export of compressor, flow controller is arranged between condenser and the evaporimeter, be connected with the liquid bypass line between the import and export of flow controller, its architectural feature is to be respectively arranged with electromagnetic valve component on described gas bypass pipeline and the liquid bypass line, this assembly and compressor, flow controller forms a loop heat pipe LHP for being arranged in parallel between evaporimeter and the condenser.
Described electromagnetic valve component comprises gas solenoid valve and liquid electromagnetic valve; The import and export of liquid electromagnetic valve are connected with the liquid bypass line, and with flow controller for being connected in parallel, the import and export of gas solenoid valve are connected with the gas bypass pipeline, and with compressor for being connected in parallel.
Be connected with working medium circulating pump on the described liquid bypass line, this working medium circulating pump is arranged on the outlet/inlet of liquid electromagnetic valve, and with flow controller for being arranged in parallel; Be provided with reservoir between flow controller and the condenser.
Described working medium circulating pump, compressor, gas solenoid valve, liquid electromagnetic valve, indoor fan and outdoor fan are electrically connected with controller on the air conditioner respectively.
Described indoor fan is provided with the indoor temperature transmitter that can detect outdoor temperature, this sensor be electrically connected with controller, to realize the switching of compressor cooling pattern/heat-pipe refrigerating pattern.
Described outdoor fan is provided with the outdoor temperature sensor that can detect indoor temperature, this sensor and the switching that is electrically connected with controller with realization compressor cooling pattern/heat-pipe refrigerating pattern.
A kind of control method of natural cooling and energy conserving air conditioner may further comprise the steps:
A. when the detected temperature of outdoor temperature sensor is higher than the detected temperature certain value of indoor temperature transmitter, liquid electromagnetic valve on gas solenoid valve on the gas bypass pipeline and the liquid bypass line is closed, compressor start, air-conditioning system are in the compressor cooling pattern;
B. when the detected temperature of outdoor temperature sensor is lower than the detected temperature certain value of indoor temperature transmitter, liquid electromagnetic valve on gas solenoid valve on the gas bypass pipeline and the liquid bypass line is opened simultaneously, compressor stops, and air-conditioning system is in the heat-pipe refrigerating pattern.
The present invention is by setting up electromagnetic valve component, when outdoor temperature is lower, simple switching by pipeline, form a loop heat pipe LHP between evaporimeter and the condenser, can make full use of natural cooling source cools to room air, Remarkable Energy Saving can also be avoided variety of issue that frequent start-stop produced and the hidden danger of compressor refrigeration system at cold operation and compressor simultaneously, can effectively prolong the service life of compressor; It has simple and reasonable, operational reliability is high and the characteristics that occupy little space; And this structure goes for the technological air conditioning machine of whole year operation, as thermostatic and humidistatic air conditioning unit, air conditioner in machine room machine and base station air-conditioning etc.
Description of drawings
Fig. 1 is the operation principle schematic diagram of one embodiment of the invention.
Fig. 2 is the operation principle schematic diagram of another embodiment of Fig. 1.
Among the figure: 1 is compressor, and 2 is condenser, and 3 is flow controller, 4 is evaporimeter, and 5 is the gas bypass pipeline, and 6 is gas solenoid valve, 7 is the liquid bypass line, and 8 is liquid electromagnetic valve, and 9 is reservoir, 10 is indoor fan, 11 is outdoor fan, and 12 is indoor temperature transmitter, and 13 is outdoor temperature sensor, 14 is controller, and 15 is working medium circulating pump.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
First embodiment
Referring to Fig. 1, this natural cooling and energy conserving air conditioner comprises indoor fan 10, outdoor fan 11 and is in turn connected into compressor 1, condenser 2, flow controller 3 and the evaporimeter 4 of closed loop.Compressor 1, gas solenoid valve 6, liquid electromagnetic valve 8, indoor fan 10 and outdoor fan 11 are electrically connected with controller 14 on the air conditioner respectively, are focused on and controlled the signal and the action of each element by controller 14.Be connected with gas bypass pipeline 5 between the import and export of compressor 1, flow controller 3 is arranged between condenser 2 and the evaporimeter 4, is connected with liquid bypass line 7 between the import and export of flow controller 3.
For fear of the variety of issue that frequent start-stop produced and the hidden danger of operation of compressor 1 refrigerating system low-temperature and compressor 1, can prolong the service life of compressor 1 simultaneously again.Therefore be respectively arranged with electromagnetic valve component on gas bypass pipeline 5 and liquid bypass line 7, this assembly and compressor 1, flow controller 3 form a loop heat pipe LHP for being arranged in parallel between evaporimeter 4 and the condenser 2.
Electromagnetic valve component comprises gas solenoid valve 6 and liquid electromagnetic valve 8, the import and export of liquid electromagnetic valve 8 are connected with liquid bypass line 7, and with flow controller 3 for being connected in parallel, the import and export of gas solenoid valve 6 are connected with gas bypass pipeline 5, and with compressor 1 for being connected in parallel, be provided with reservoir 9 between flow controller 3 and the condenser 2, reservoir 9 can store unnecessary refrigeration working medium when air conditioner is in underrun, thereby satisfies the security that moves under the different operating modes.
Be respectively arranged with outdoor temperature sensor 13 and indoor temperature transmitter 12 on indoor fan 10 and the outdoor fan 11, indoor temperature transmitter 12 is used for indoor temperature, and outdoor temperature sensor 13 is used to detect outdoor temperature, then by controller 14 counting chamber internal-external temperature differences, to realize the switching of compressor 1 refrigeration mode/heat-pipe refrigerating pattern.
The control method of nature cooling and energy conserving air conditioner may further comprise the steps:
A. when outdoor temperature sensor 13 detected temperature are higher than the detected temperature certain value of indoor temperature transmitter 12, gas solenoid valve 6 on the gas bypass pipeline 5 and the liquid electromagnetic valve 8 on the liquid bypass line 7 are closed, compressor 1 starts, air-conditioning system is in compressor 1 refrigeration mode, and refrigeration working medium constitutes natural convection loop through reservoir 9, flow controller 3 and compressor 1 successively in condenser 2 and the evaporimeter 4.
B. when outdoor temperature sensor 13 detected temperature are lower than the detected temperature certain value of indoor temperature transmitter 12, gas solenoid valve 6 and the liquid electromagnetic valve 8 on the liquid bypass line 7 on the gas bypass pipeline 5 are opened simultaneously, compressor 1 stops, air-conditioning system is in the heat-pipe refrigerating pattern, refrigeration working medium passes through reservoir 9 successively in condenser 2 and the evaporimeter 4, liquid electromagnetic valve 8 becomes natural convection loop with gas solenoid valve 6 mechanisms, utilize heat pipe principle to carry out the passive type heat exchange, and adopt the indoor and outdoor blower fan of air conditioner itself to carry out forced-convection heat transfer, heat exchange efficiency height during heat-pipe refrigerating, energy-saving effect is remarkable, and only need to realize to compressor 1 refrigerating and air-conditioning transformation, need not to increase independently servicing unit and control system thereof, operation is simple and reliable for it, can shorten the investment payback time simultaneously.
Second embodiment
Referring to Fig. 2, be connected with working medium circulating pump 15 on the described liquid bypass line 7, this working medium circulating pump is arranged at the position of the outlet of liquid electromagnetic valve 8, and with flow controller 3 for being arranged in parallel, working medium circulating pump 15 is electrically connected with controller 14.Its purpose is: can accelerate flowing of condenser 2 and evaporimeter 4 interior refrigeration working mediums, improve forced-convection heat transfer coefficient in the pipe, thereby further improve adopting heat pipes for heat transfer efficient, for when the temperature difference of indoor and outdoor hour, when the circular flow of loop heat pipe was little, its effect was especially obvious.
Other does not state part with first embodiment.
Claims (7)
1. natural cooling and energy conserving air conditioner, comprise indoor fan (10), outdoor fan (11) and be in turn connected into the compressor (1) of closed loop, condenser (2), flow controller (3) and evaporimeter (4), be connected with gas bypass pipeline (5) between the import and export of compressor, flow controller is arranged between condenser and the evaporimeter, be connected with liquid bypass line (8) between the import and export of flow controller, it is characterized in that being respectively arranged with electromagnetic valve component on described gas bypass pipeline and the liquid bypass line, this assembly and compressor, flow controller forms a loop heat pipe LHP for being arranged in parallel between evaporimeter and the condenser.
2. natural cooling and energy conserving air conditioner according to claim 1 is characterized in that described electromagnetic valve component comprises gas solenoid valve (6) and liquid electromagnetic valve (7); The import and export of liquid electromagnetic valve are connected with liquid bypass line (8), and with flow controller (3) for being connected in parallel, the import and export of gas solenoid valve (5) are connected with gas bypass pipeline (5), and with compressor (1) for being connected in parallel.
3. natural cooling and energy conserving air conditioner according to claim 1 and 2, it is characterized in that being connected with on the described liquid bypass line (8) working medium circulating pump (15), this working medium circulating pump is arranged on the outlet/inlet of liquid electromagnetic valve (7), and with flow controller (3) for being arranged in parallel; Be provided with reservoir (9) between flow controller and the condenser (2).
4. natural cooling and energy conserving air conditioner according to claim 3 is characterized in that described working medium circulating pump (15), compressor (1), gas solenoid valve (6), liquid electromagnetic valve (7), indoor fan (10) and outdoor fan (11) are electrically connected with controller (14) on the air conditioner respectively.
5. natural cooling and energy conserving air conditioner according to claim 4, it is characterized in that described indoor fan (10) is provided with the indoor temperature transmitter (12) that can detect outdoor temperature, this sensor is electrically connected with controller (14), to realize the switching of compressor cooling pattern/heat-pipe refrigerating pattern.
6. natural cooling and energy conserving air conditioner according to claim 4, it is characterized in that described outdoor fan (11) is provided with the outdoor temperature sensor (13) that can detect indoor temperature, this sensor and the switching that is electrically connected with controller with realization compressor cooling pattern/heat-pipe refrigerating pattern.
7. according to the control method of the described natural cooling and energy conserving air conditioner of claim 1, it is characterized in that may further comprise the steps:
A. when the detected temperature of outdoor temperature sensor (13) is higher than the detected temperature certain value of indoor temperature transmitter, gas solenoid valve (6) on the gas bypass pipeline (5) and the liquid electromagnetic valve (7) on the liquid bypass line (8) are closed, compressor (1) starts, and air-conditioning system is in the compressor cooling pattern;
B. when the detected temperature of outdoor temperature sensor (12) is lower than the detected temperature certain value of indoor temperature transmitter, gas solenoid valve (6) on the gas bypass pipeline (5) and the liquid electromagnetic valve (7) on the liquid bypass line (8) are opened simultaneously, compressor (1) stops, and air-conditioning system is in the heat-pipe refrigerating pattern.
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| CN 201010552346 CN101988723A (en) | 2010-11-19 | 2010-11-19 | Natural cooling energy-saving air conditioner and control method thereof |
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| CN102226598A (en) * | 2011-06-02 | 2011-10-26 | 天津海天缘科技发展有限公司 | Air-cooled water chiller unit capable of switching natural cold source |
| CN102252385A (en) * | 2011-05-15 | 2011-11-23 | 杭州兴环科技开发有限公司 | Dual-circuit air-conditioning system |
| CN102419037A (en) * | 2011-12-07 | 2012-04-18 | 深圳市中兴昆腾有限公司 | Heat pipe air conditioner with adjustable filling rate |
| WO2012055268A1 (en) * | 2010-10-28 | 2012-05-03 | 西安锐信科技有限公司 | Temperature control processing system and method |
| CN102607120A (en) * | 2012-03-27 | 2012-07-25 | 北京工业大学 | Liquid pump driving heat pipe device for cascade mechanical refrigerating and operation method |
| CN102997348A (en) * | 2011-09-08 | 2013-03-27 | 葛永乐 | Heat pipe energy-saving air conditioner special for novel machine room |
| CN103115401A (en) * | 2013-01-15 | 2013-05-22 | 齐力制冷系统(深圳)有限公司 | Air conditioning system |
| CN103363717A (en) * | 2013-07-30 | 2013-10-23 | 新奥科技发展有限公司 | Refrigerating system and operation method thereof |
| CN103900221A (en) * | 2014-03-03 | 2014-07-02 | 广东申菱空调设备有限公司 | Natural cooling control system and control method thereof |
| CN104329839A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Air-conditioning system and low-temperature starting control method thereof |
| CN104501326A (en) * | 2014-11-12 | 2015-04-08 | 北京百度网讯科技有限公司 | Heat-dissipating system and method |
| CN104540375A (en) * | 2015-01-14 | 2015-04-22 | 合肥天鹅制冷科技有限公司 | Onboard small electronic module cooling device with heat pipe function |
| CN105091383A (en) * | 2015-08-18 | 2015-11-25 | 合肥华凌股份有限公司 | Refrigerating device |
| CN105241104A (en) * | 2014-05-29 | 2016-01-13 | 重庆美的通用制冷设备有限公司 | Refrigeration system and air conditioner |
| CN105241130A (en) * | 2015-11-19 | 2016-01-13 | 珠海格力电器股份有限公司 | Cooling unit and control method thereof |
| CN105423656A (en) * | 2015-12-23 | 2016-03-23 | 广东美的暖通设备有限公司 | Refrigeration system and control method thereof |
| CN105444446A (en) * | 2014-08-27 | 2016-03-30 | 艾默生网络能源有限公司 | System, method and devices for refrigeration control of computer room |
| CN106679210A (en) * | 2016-11-28 | 2017-05-17 | 中国科学院理化技术研究所 | Novel variable-pressure-ratio vapor compression/heat pipe integrated machine room air conditioning system and control method thereof |
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| CN110553427A (en) * | 2019-08-16 | 2019-12-10 | 盾安环境技术有限公司 | air conditioning system and control method |
| CN111328241A (en) * | 2018-12-13 | 2020-06-23 | 阳光电源股份有限公司 | Heat dissipation system and electronic equipment |
| WO2020151112A1 (en) * | 2019-01-25 | 2020-07-30 | 深圳市艾特网能技术有限公司 | Spray control method and device for indirect evaporative cold-source cold pump |
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| WO2012055268A1 (en) * | 2010-10-28 | 2012-05-03 | 西安锐信科技有限公司 | Temperature control processing system and method |
| CN102252385A (en) * | 2011-05-15 | 2011-11-23 | 杭州兴环科技开发有限公司 | Dual-circuit air-conditioning system |
| CN102226598A (en) * | 2011-06-02 | 2011-10-26 | 天津海天缘科技发展有限公司 | Air-cooled water chiller unit capable of switching natural cold source |
| CN102997348A (en) * | 2011-09-08 | 2013-03-27 | 葛永乐 | Heat pipe energy-saving air conditioner special for novel machine room |
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| CN106679210A (en) * | 2016-11-28 | 2017-05-17 | 中国科学院理化技术研究所 | Novel variable-pressure-ratio vapor compression/heat pipe integrated machine room air conditioning system and control method thereof |
| CN108548254A (en) * | 2018-04-11 | 2018-09-18 | 河南工业和信息化职业学院 | The intelligent air-cooled air-conditioning system of house |
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Application publication date: 20110323 |