CN104613580A - Air-conditioning unit used for machine room refrigeration - Google Patents
Air-conditioning unit used for machine room refrigeration Download PDFInfo
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- CN104613580A CN104613580A CN201510049683.4A CN201510049683A CN104613580A CN 104613580 A CN104613580 A CN 104613580A CN 201510049683 A CN201510049683 A CN 201510049683A CN 104613580 A CN104613580 A CN 104613580A
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- machine room
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- outer tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an air-conditioning unit used for machine room refrigeration. The air-conditioning unit comprises a vapor compression type system, a separation type heat pipe system and a sleeve radiator, wherein the vapor compression type system is arranged outside a machine room, the separation type heat pipe system is arranged in the machine room, and the sleeve radiator is arranged between the vapor compression type system and the separation type heat pipe system. The vapor compression type system is in coupled communication with the separation type heat pipe system through the sleeve radiator. The sleeve radiator is provided with an evaporation channel and a condensation channel, wherein the evaporation channel is communicated with the vapor compression type system, and the condensation channel is communicated with the separation type heat pipe system. According to the air-conditioning unit, the purpose of cooling the machine room can be achieved by utilizing a natural cold source to the maximum degree, and the air-conditioning energy efficiency ratio is increased; as the sleeve radiator is applied, the number of heat exchangers is reduced, space is saved, the machining cost of air conditioners is lowered, heat exchange efficiency is high, the charge volume of a system working medium is reduced, the weight of the heat exchangers is reduced, and the manufacturing cost is lowered.
Description
Technical field
The present invention relates to field of air conditioning, particularly relate to a kind of air-conditioner set for machine room refrigeration.
Background technology
The high speed development of computer center's technology, communication network and transmission technology, has not only expedited the emergence of the revolution of mechanics of communication, simultaneously also for the application of air conditioner technology provides great market.Information technoloy equipment in machine room, communication base station runs throughout the year, heat generation density is large, fever time is long, need all-year-around cooling, tradition air conditioner in machine room adopts single vapour compression refrigeration technology, and all weather refrigeration runs, and its air conditioning energy consumption is very large, account for about 45% of the overall energy consumption of machine room, do not meet the developing direction of air-conditioning technical.
According to the weather conditions of China, the annual most of the time outside air temperature in a lot of area, the whole nation is lower than 20 DEG C, outdoor environment temperature lower than indoor environment temperature to a certain degree time, indirect utilization outdoor natural cooling source can be lowered the temperature by machine room, reduce the steam compressing air conditioner unit operation time, reduce air conditioning energy consumption, realize the object of energy-saving and emission-reduction.For alleviating the high problem of compressed air conditioner units consumption, hot pipe technique obtains certain application, but it is comparatively large all to there is possessive volume, and heat exchange efficiency is low, the large defect of manufacturing cost.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the object of the invention is to, a kind of air-conditioner set for machine room refrigeration is provided, natural cooling source can be utilized to greatest extent to reach the object of lowering the temperature to machine room, improve air-conditioning Energy Efficiency Ratio, application of sleeve radiator decreases heat exchanger quantity, saves space, reduces air-conditioning processing cost.
For reaching this object, the present invention includes: the steam compression type system being arranged on machine room outside, the separate-type heat pipe system being arranged on machine room inside and the cover tube radiator arranged between described steam compression type system and described separate-type heat pipe system; Described steam compression type system and described separate-type heat pipe system are coupled by described cover tube radiator and are communicated with;
Described cover tube radiator inside is provided with and the evaporation channel of described steam compression type system connectivity and the condensation channel that is communicated with described separate-type heat pipe system;
Described cover tube radiator outside is provided with heat exchange blower fan.
Preferably, described steam compression type system comprises: compressor, condenser, choke valve and the first blower fan be arranged on described condenser;
The first end of described condenser is communicated with described compressor first end, and the second end of described condenser is communicated with described choke valve first end;
Described compressor second end is communicated with evaporation channel one end of described cover tube radiator;
Described choke valve second end is communicated with the evaporation channel other end of described cover tube radiator.
Preferably, described separate-type heat pipe system comprises: micro-channel evaporator, Liquid valve, gas valve and the second blower fan be arranged on described micro-channel evaporator;
Described gas valve is arranged on the gas vent side of described micro-channel evaporator;
Described Liquid valve is arranged on the liquid outlet side of described micro-channel evaporator;
The gas vent side of described micro-channel evaporator is communicated with one end of described condensation channel, and the liquid outlet side of described micro-channel evaporator is communicated with the other end of described condensation channel.
Preferably, also comprise: controller and the hygrosensor be electrically connected with described controller;
Temperature value transmission for detecting outdoor environment temperature, and is supplied described controller by described hygrosensor;
Described controller is used for, according to the described temperature value received, controlling operation or the stopping of described steam compression type system and/or described separate-type heat pipe system.
Preferably, described cover tube radiator comprises: comprise several parallel arrange first in pipe and to be socketed in described in every root the first outer tube of pipe outside in first respectively;
Be provided with space interval between pipe and described first outer tube in described first, described first outer tube is not communicated with mutually with the described first interior pipe;
Described comprise several parallel arrange first in adopt 180 ° of elbows to connect between pipe;
In described first, pipe is described evaporation channel;
Space interval in described first between pipe and described first outer tube is described condensation channel.
Preferably, in described first, pipe and described first outer tube all adopt stainless steel material, or zinc-plating material makes.
Preferably, described cover tube radiator comprises: the second interior pipe and the second outer tube that comprise several parallel is arranged;
Described comprise several parallel arrange second in adopt 180 ° of elbows to be connected to form interior pipe group between pipe;
It is outside that described second outer tube is located at described interior pipe group, and described second outer tube is not communicated with mutually with described interior pipe group;
Described second outer tube is provided with several dividing plate, and described dividing plate all manages vertical setting with in second of described interior pipe group;
One end of each described dividing plate is fixedly connected with described second outer tube wall, and the other end and described second outer tube wall leave spacing, and described spacing is arranged alternately.
Preferably, described micro-channel evaporator comprises: header, several flat tube and louvered fin;
Described several flat tube is communicated with described header respectively, and described several flat tube is used for the medium shunt of described header inside, and be provided with flat tube interval between flat tube described in every root, described flat tube is interval with described louvered fin.
Preferably, also comprise: the temperature setting module be electrically connected with described controller;
Described temperature setting module is used for set temperature setting value, desired temperature and temperature detection value is compared by described controller, controls operation or the stopping of described steam compression type system and/or described separate-type heat pipe system.
As can be seen from the above technical solutions, the present invention has the following advantages:
When machine room ambient temperature is lower, only can run separate-type heat pipe system, the cold air of outdoor is incorporated in machine room, machine room is lowered the temperature.When machine room ambient temperature is higher, the cold needed for machine room provides by steam compression type system.Natural cooling source can be utilized so to greatest extent to reach the object of lowering the temperature to machine room, improve air-conditioning Energy Efficiency Ratio, application of sleeve radiator decreases heat exchanger quantity, save space, reduce air-conditioning processing cost, make heat exchange efficiency higher, reduce systematic working medium charging amount, alleviate heat exchanger weight, reduce manufacturing cost.
Term " first ", " second ", " the 3rd " " 4th " etc. (if existence) in description of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses 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 restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in description 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, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure figure for machine room refrigeration air-conditioning unit embodiment;
Fig. 2 is the structure chart of the cover tube radiator embodiment for machine room refrigeration air-conditioning unit;
Fig. 3 is the structure chart of the micro-channel evaporator embodiment for machine room refrigeration air-conditioning unit;
Fig. 4 is the schematic diagram for machine room refrigerating and air-conditioning group controller embodiment.
Description of reference numerals:
1 machine room, 2 separate-type heat pipe systems, 3 steam compression type systems, 11 condensers, 12 first blower fans, 13 compressors, 14 choke valves, 21 micro-channel evaporators, 22 second blower fans, 23 gas valves, 24 Liquid valves, 31 cover tube radiators, 32 heat exchange blower fans, 211 headers, 212 flat tubes, 213 louvered fins, 311 first outer tubes, 312 evaporation channels, pipe in 313 first, 314 evaporation channels
Detailed description of the invention
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable; specific embodiment and accompanying drawing will be used below; the technical scheme of the present invention's protection is clearly and completely described; obviously; the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in this patent, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of this patent protection.
Should be appreciated that in invention, claim a certain element or layer another element or layer " on ", when being " connected " or " coupled " to another element or layer, it directly on another element or layer, may be connected directly or be coupled to another element described or layer, also may there is intermediary element or layer.On the contrary, a certain element of title " directly existed " another element or layer " on ", when " directly connection " or " direct-coupling " are to another element or layer, then there is not intermediary element or layer.Numeral instruction like similar in institute's drawings attached.As used herein, term "and/or" comprises relevant listd one or more any and all combinations.
The present embodiment provides a kind of air-conditioner set for machine room refrigeration, refer to Fig. 1, shown in composition graphs 4, comprising: the cover tube radiator being arranged on the steam compression type system 3 of machine room 1 outside, being arranged on the separate-type heat pipe system 2 of machine room 1 inside and arranging between steam compression type system 3 and separate-type heat pipe system 2; Steam compression type system 3 and separate-type heat pipe system 2 are coupled are communicated with by overlapping tube radiator;
Refer to shown in Fig. 2, cover tube radiator 31 is provided with the evaporation channel 314 be communicated with steam compression type system 3 and the condensation channel 312 be communicated with separate-type heat pipe system 2.Cover tube radiator 31 outside is provided with 32
Concrete, refer to shown in Fig. 1, steam compression type system 3 comprises: compressor 13, condenser 11, choke valve 14 and the first blower fan 12 be arranged on condenser 11;
The first end of condenser 11 is communicated with compressor 13 first end, and the second end of condenser 11 is communicated with choke valve 14 first end; Compressor 13 second end is communicated with evaporation channel 314 one end of cover tube radiator; Choke valve 14 second end is communicated with evaporation channel 314 other end of cover tube radiator.
Separate-type heat pipe system 2 comprises: micro-channel evaporator 21, Liquid valve 24, gas valve 23 and the second blower fan 22 be arranged on micro-channel evaporator 21; Gas valve is arranged on the gas vent side of micro-channel evaporator; Liquid valve is arranged on the liquid outlet side of micro-channel evaporator; The gas vent side of micro-channel evaporator is communicated with one end of condensation channel, and the liquid outlet side of micro-channel evaporator is communicated with the other end of condensation channel.
In the present embodiment, refer to micro-channel evaporator 21 shown in Fig. 3 to comprise: header 211, several flat tube 212 and louvered fin 213;
Several flat tube 212 is communicated with header 211 respectively, and several flat tube 212 is for the medium shunt by header 211 inside, and be provided with flat tube interval between every root flat tube 212, flat tube is interval with louvered fin 213.Louvered fin 213 increases the disturbance of fin surface to air, destroys the boundary layer of flat tube 212 superficial air flowing, thus plays the effect of enhanced heat exchange.
In the present embodiment, refer to shown in Fig. 2, cover tube radiator 31 comprises: comprise several parallel arrange first in pipe 313 and be socketed in the first outer tube 311 of pipe 313 outside in every root first respectively; Be provided with space interval between pipe 313 and the first outer tube 311 in first, the first outer tube 311 is not communicated with mutually with pipe in first 313; Comprise several parallel arrange first in adopt between pipe 313 180 ° of elbows to connect; In first, pipe 313 is evaporation channel 312; Space interval in first between pipe 313 and the first outer tube 311 is condensation channel 314.
In order to cover tube radiator 31 can be made to have good heat transfer effect, in first, pipe and the first outer tube all adopt stainless steel material, or zinc-plating material makes.
Except adopting the version of above-mentioned cover tube radiator 31, cover tube radiator 31 can also adopt the setting of cover tube radiator to comprise: the second interior pipe and the second outer tube that comprise several parallel is arranged;
Comprise several parallel arrange second in adopt between pipe 180 ° of elbows to be connected to form interior pipe group; It is outside that second outer tube is located at interior pipe group, and the second outer tube is not communicated with mutually with interior pipe group; Second outer tube is provided with several dividing plate, and dividing plate all manages vertical setting with in second of interior pipe group; One end of each dividing plate is fixedly connected with the second outer tube wall, and the other end and the second outer tube wall leave spacing, and spacing is arranged alternately.It is outside that this mode and above-mentioned difference are that the second outer tube is located at interior pipe group, and heat transferring medium is in interior pipe group flows outside.In order to improve heat exchange efficiency, several dividing plate being set at the second outer tube, increasing the flow distance of heat transferring medium at the second outer tube.The set-up mode of dividing plate manages vertical setting with in second of interior pipe group; One end of each dividing plate is fixedly connected with the second outer tube wall, and the other end and the second outer tube wall leave spacing, and spacing is arranged alternately.Such heat transferring medium can present the flowing of S shape at the second outer tube.
In the present embodiment, refer to shown in Fig. 4, also comprise: controller 101 and the hygrosensor 103 be electrically connected with controller 101; Temperature value transmission for detecting outdoor environment temperature, and is supplied controller 101 by hygrosensor 103; Controller 101, for according to the temperature value received, controls operation or the stopping of steam compression type system 3 and/or separate-type heat pipe system 2.
Further comprise: the temperature setting module 102 be electrically connected with controller 101; Temperature setting module 102, for set temperature setting value, makes controller 101 desired temperature and temperature detection value be compared, and controls operation or the stopping of steam compression type system 3 and/or separate-type heat pipe system 2.
The desired temperature that user can be set by temperature setting module 102, concrete desired temperature can in conjunction with local environment temperature, and the ruuning situation of machine room 1 internal unit is arranged.Here setting means can a point gradient be arranged step by step.
Such as, user is 18 DEG C by temperature setting module 102 design temperature setting value.When machine room 1 ambient temperature is less than 18 DEG C, controller 101 controls unlatching second blower fan 22 and heat exchange blower fan 32, only runs separate-type heat pipe system 2;
Further, it is 23 DEG C that user carries out design temperature setting value by temperature setting module 102 again, when machine room 1 ambient temperature is 18 ~ 23 DEG C, separate-type heat pipe system 2 deficiency thinks that machine room 1 provides cold, controller 101 controls to open steam compression type system 3, runs steam compression type system 3 and separate-type heat pipe system 2 for machine room 1 simultaneously and provides cold; When machine room 1 ambient temperature is greater than 23 DEG C, controller 101 controls to cut out heat exchange blower fan 32, and the cold needed for machine room 1 provides by steam compression type system 3.
In the present embodiment, hygrosensor 103 not only can detect the environment temperature of machine room 1 outside, can also detect the temperature of machine room 1 inside, then carries out set temperature setting value by temperature setting module 102.When machine room 1 internal temperature is higher than setting value, controller 101 controls to open air-conditioner set and freezes to machine room 1 inside.When machine room 1 internal temperature reaches the lower limit of setting, controller 101 controls to cut out air-conditioner set.Serve Automated condtrol like this, reduce operation of air conditioner cost.
The solution of the present invention, air-conditioner set can utilize natural cooling source to reach the object of lowering the temperature to machine room 1 to greatest extent, and improve air-conditioning Energy Efficiency Ratio, application of sleeve heat exchanger 31 decreases heat exchanger quantity, saves space, reduces air-conditioning processing cost; And use micro-channel evaporator 21 heat exchange efficiency high, reduce systematic working medium charging amount, alleviate heat exchanger weight, reduce manufacturing cost.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, identical similar portion reference mutually between each embodiment.
Claims (9)
1. the air-conditioner set for machine room refrigeration, it is characterized in that, comprise: the steam compression type system being arranged on machine room outside, the separate-type heat pipe system being arranged on machine room inside and the cover tube radiator arranged between described steam compression type system and described separate-type heat pipe system; Described steam compression type system and described separate-type heat pipe system are coupled by described cover tube radiator and are communicated with;
Described cover tube radiator inside is provided with and the evaporation channel of described steam compression type system connectivity and the condensation channel that is communicated with described separate-type heat pipe system;
Described cover tube radiator outside is provided with heat exchange blower fan.
2. the air-conditioner set for machine room refrigeration according to claim 1, is characterized in that:
Described steam compression type system comprises: compressor, condenser, choke valve and the first blower fan be arranged on described condenser;
The first end of described condenser is communicated with described compressor first end, and the second end of described condenser is communicated with described choke valve first end;
Described compressor second end is communicated with evaporation channel one end of described cover tube radiator;
Described choke valve second end is communicated with the evaporation channel other end of described cover tube radiator.
3. the air-conditioner set for machine room refrigeration according to claim 1, is characterized in that:
Described separate-type heat pipe system comprises: micro-channel evaporator, Liquid valve, gas valve and the second blower fan be arranged on described micro-channel evaporator;
Described gas valve is arranged on the gas vent side of described micro-channel evaporator;
Described Liquid valve is arranged on the liquid outlet side of described micro-channel evaporator;
The gas vent side of described micro-channel evaporator is communicated with one end of described condensation channel, and the liquid outlet side of described micro-channel evaporator is communicated with the other end of described condensation channel.
4. the air-conditioner set for machine room refrigeration according to claim 1, is characterized in that:
Also comprise: controller and the hygrosensor be electrically connected with described controller;
Temperature value transmission for detecting outdoor environment temperature, and is supplied described controller by described hygrosensor;
Described controller is used for, according to the described temperature value received, controlling operation or the stopping of described steam compression type system and/or described separate-type heat pipe system.
5. the air-conditioner set for machine room refrigeration according to claim 1, is characterized in that:
Described cover tube radiator comprises: comprise several parallel arrange first in pipe and to be socketed in described in every root the first outer tube of pipe outside in first respectively;
Be provided with space interval between pipe and described first outer tube in described first, described first outer tube is not communicated with mutually with the described first interior pipe;
Described comprise several parallel arrange first in adopt 180 ° of elbows to connect between pipe;
In described first, pipe is described evaporation channel;
Space interval in described first between pipe and described first outer tube is described condensation channel.
6. the air-conditioner set for machine room refrigeration according to claim 5, is characterized in that:
In described first, pipe and described first outer tube all adopt stainless steel material, or zinc-plating material makes.
7. the air-conditioner set for machine room refrigeration according to claim 1, is characterized in that:
Described cover tube radiator comprises: the second interior pipe and the second outer tube that comprise several parallel is arranged;
Described comprise several parallel arrange second in adopt 180 ° of elbows to be connected to form interior pipe group between pipe;
It is outside that described second outer tube is located at described interior pipe group, and described second outer tube is not communicated with mutually with described interior pipe group;
Described second outer tube is provided with several dividing plate, and described dividing plate all manages vertical setting with in second of described interior pipe group;
One end of each described dividing plate is fixedly connected with described second outer tube wall, and the other end and described second outer tube wall leave spacing, and described spacing is arranged alternately.
8. the air-conditioner set for machine room refrigeration according to claim 3, is characterized in that:
Described micro-channel evaporator comprises: header, several flat tube and louvered fin;
Described several flat tube is communicated with described header respectively, and described several flat tube is used for the medium shunt of described header inside, and be provided with flat tube interval between flat tube described in every root, described flat tube is interval with described louvered fin.
9. the air-conditioner set for machine room refrigeration according to claim 4, is characterized in that:
Also comprise: the temperature setting module be electrically connected with described controller;
Described temperature setting module is used for set temperature setting value, desired temperature and temperature detection value is compared by described controller, controls operation or the stopping of described steam compression type system and/or described separate-type heat pipe system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049683.4A CN104613580A (en) | 2015-01-30 | 2015-01-30 | Air-conditioning unit used for machine room refrigeration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049683.4A CN104613580A (en) | 2015-01-30 | 2015-01-30 | Air-conditioning unit used for machine room refrigeration |
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| CN104613580A true CN104613580A (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510049683.4A Pending CN104613580A (en) | 2015-01-30 | 2015-01-30 | Air-conditioning unit used for machine room refrigeration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105757826A (en) * | 2016-03-28 | 2016-07-13 | 朱虹斐 | Low-noise energy-saving air-conditioner |
| CN113400086A (en) * | 2021-07-01 | 2021-09-17 | 珠海格力智能装备有限公司 | Cooling system |
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| CN203687704U (en) * | 2013-12-17 | 2014-07-02 | 上海乐全食品有限公司 | Tubular heat exchange tube mounted on double-pipe heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105757826A (en) * | 2016-03-28 | 2016-07-13 | 朱虹斐 | Low-noise energy-saving air-conditioner |
| CN105757826B (en) * | 2016-03-28 | 2018-12-11 | 北京中能德源能源科技有限公司 | low-noise energy-saving air conditioner |
| CN113400086A (en) * | 2021-07-01 | 2021-09-17 | 珠海格力智能装备有限公司 | Cooling system |
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Application publication date: 20150513 |