CN102444949A - Cooling water dry air-conditioning box, control system and control method thereof - Google Patents
Cooling water dry air-conditioning box, control system and control method thereof Download PDFInfo
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- CN102444949A CN102444949A CN2011104312174A CN201110431217A CN102444949A CN 102444949 A CN102444949 A CN 102444949A CN 2011104312174 A CN2011104312174 A CN 2011104312174A CN 201110431217 A CN201110431217 A CN 201110431217A CN 102444949 A CN102444949 A CN 102444949A
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Abstract
The invention relates to a cooling water dry air-conditioning box, a control system and a control method thereof, which comprise an air-conditioning box machine casing and a fan disposed in the machine casing. The machine casing is divided into a positive pressure cavity and a negative pressure cavity through a separating plate. An air outlet of the fan is located in the positive pressure cavity, and an air inlet of the fan is located in the negative pressure cavity. An indoor air supply port and an indoor air supply valve as well as an air port and an air valve which are connected to an air-conditioner are further arranged in the positive pressure cavity. A tube wing heat exchanger and a cabinet heat return air inlet are disposed in the negative pressure cavity along the direction converse to the airflow. The cooling water dry air-conditioning box, the control system and the control method thereof can utilize a cooling water system of outdoor water evaporation cooling to the maximum degree, produces cooling water with the temperature close to wet bulb temperature and then sends the cooling water to an indoor dry air-conditioning box through a water pipe so as to cool indoor air. A system of the cooling water dry air-conditioning box is suitable for all areas and has the best yearly all-around energy-saving effect compared with other machine room cooling energy-saving techniques.
Description
Technical field
The present invention relates to a kind of dry type air-conditioning box that adopts the water quench room air; It suits big in thermic load very much; In the time of can outdoor wet-bulb temperature is less than about 22 ℃ in 1 year, exempts to turn on the aircondition and bear indoor thermic load alone in places such as long communications equipment room of whole year operation time, electric room, computer floor; When wet-bulb temperature is approximately higher than 22 ℃, be used to bear the sub-load of enclosure top hot type wind.Annual power savings highly significant.
Background technology
At present, the mass communication machine room is because thermic load is big, total the air-conditioning power consumption has surpassed more than 50% of machine room power consumption, even and in the winter time, air conditioner in machine room still need be opened.Corrective measure to the compressed air conditioner efficiency is more limited to improving the air-conditioning Energy Efficiency Ratio like many measures such as the cabinet air conditioner that is directed against the rack internal refrigeration storage, accurate air-supply, condensing fin spraying, refrigerant additives, and in addition the power-saving technology of following non-compressions is still arranged:
Adopt the heat exchange of heat pipe, ethylene glycol heat exchanger of outdoor natural cooling source owing to be heat exchange under outdoor dry-bulb temperature operating mode, indoor heat exchanger does not have and can carry out pre-cooled design and control technology to rack hot type wind in addition, so the synthesis energy saving rate is less;
And adopt the well water falling temperature technique to have the uncertainty at water source.
The dew wind system of intelligence is owing to introduced a large amount of new wind (the fresh-air ventilation number of times generally reaches more than 30 times/hour); So have that new wind filters, a problem such as presumable pernicious gas in the new wind; The cleanliness factor requirement of one or two types of communications equipment rooms can not be satisfied, some three types of machine room base stations can only be used for.
New geomantic omen curtain equipment (evaporation type air conditioner) is owing to carry out the constant enthalpy cooling to new wind, so fractional energy savings far above pure ventilating system, but equally owing to new wind filters and possible reasons such as pernicious gas, causes satisfying the requirement of one or two types of machine rooms.
Summary of the invention
Cooling water dry type air-conditioning box, control system and the control method thereof of good energy-conserving effect have been the object of the present invention is to provide.
Technical scheme of the present invention is to constitute like this; It comprises the air-conditioning box casing and is located at the blower fan in the casing; At the casing inner route clapboard casing is divided into and is divided into positive negative pressure cavity two parts, the air outlet of blower fan is positioned at the malleation chamber, and the air inlet of blower fan is positioned at negative pressure cavity; In the malleation chamber, also be provided with indoor air outlet and indoor blow valve, and be access to the air port and the air-valve that is access to air-conditioning of air-conditioning; Contrary airflow direction is equiped with pipe wing heat exchanger and the hot return air inlet of rack in described negative pressure cavity.
The present invention can utilize the cooling water system (comprising cooling tower, filter, water pump etc.) of outdoor water evaporative cooling to greatest extent, produces near sending into indoor dry type air-conditioning box through water pipe behind the cooling water of wet-bulb temperature, the cooling room air.This dry type air-conditioning box of the present invention also possesses corresponding structure and automatic control technology; In the time can't satisfying the room temperature lowering requirement separately; Can use simultaneously with air-conditioning, the dry type air-conditioning box is used to cool off the air draft (generally can reach 32-35 ℃) that comes from enclosure top, so born a part of thermic load; Again the air after the precooling is sent into the return air inlet of air conditioner in machine room, further lowered the temperature through air conditioner in machine room.The thermic load of air-conditioning reduces greatly and realizes obviously energy-conservation thus.
When outdoor wet-bulb temperature further reduces, when the dry type air-conditioning box can be born the whole thermic load of machine room alone, close air-conditioning, this moment, fractional energy savings can be up to 80%.
This cooling water dry type air conditioner box system will be applicable to all regions, with other machine room cooling energy-saving compared with techniques, have the highest annual synthesis energy saving effect.
Operation principle of the present invention is following:
1) cooling water dead status.When linkage controller detects outdoor wet-bulb temperature value and is higher than the ceiling value of setting, even controller judges that cooling system will can not worked when the cooling water of producing under the preclimax also can be lower than the power consumption of cooling system to rack hot type air cooling efficient.This moment, indoor air returning valve and blow valve were closed, and the air-valve that leads to air-conditioning is opened, and blower fan is in the low speed operating mode; Its exhausting amount is greater than all rack exhaust air rates that connected; Rack hot type wind is directly delivered to the air-conditioning return air inlet, and it also is energy-conservation doing like this, and it can improve the return air temperature and the evaporating temperature of air-conditioning; Thereby improve the air-conditioning efficiency, reduce the compressor of air conditioner working time.
2) cooling water system and air-conditioning are worked simultaneously.When detecting outdoor wet-bulb temperature value, linkage controller is lower than setting, cooling water system work this moment.Cooling water gets into the dry type air-conditioning box, and the hot type wind of rack is pre-cooled, sends into the air-conditioning return air inlet, sucks further cooling through air-conditioning.Thereby having born the portion of hot load has reduced air conditioner load and has made energy-conservation obvious.
3) cooling water dry type air-conditioning box works independently, and air-conditioning is stopped.When outdoor wet-bulb temperature further reduces; When dry type air-conditioning box leaving air temp is lower than setting value; Controller judgement dry type air-conditioning box can be born indoor load separately, and this moment, indoor air returning valve and blow valve were opened, and the air-valve that leads to air-conditioning cuts out; The blower fan high speed operation is given room temperature lowering with big rate of ventilation and lower leaving air temp.
Than present machine room energy-saving technology, advantage of the present invention is following:
(1) guaranteed the sealing of machine room, so that the machine room cleanliness factor is able to guarantee.
(2) make full use of outdoor natural cooling source, adopt water evaporative cooling principle to produce cooling water, all or part of burden machine room thermic load.
(3) fully take into account the characteristics of communications equipment room hot type wind,, take away the portion of hot load so that more multi-period cooling water can carry out hot type wind is pre-cooled.
(4) even lack the extra high weather of part wet-bulb temperature, cooling water system can not be energy-conservation, and this moment, the dry type air-conditioning box also can concentrate rack hot type wind to deliver to the air-conditioning return air inlet; To improve the air-conditioning evaporating temperature; Both improved the air-conditioning efficiency, reduced the compressor operating time again, thereby realized energy-conservation.
(5) annual synthesis energy saving rate is very obvious.
Description of drawings:
Fig. 1 is a kind of example structure sketch map of cooling water dry type air-conditioning box of the present invention.
Fig. 2 is that embodiment dry type air-conditioning box is connected with air conditioner in machine room and the air-flow sketch map.
Fig. 3 is embodiment dry type air-conditioning box air-flow sketch map when working independently.
Fig. 4 is the embodiment A-A profile of cooling water dry type air-conditioning box of the present invention
Fig. 5 is control method embodiment control principle figure
Label declaration: 1 casing; 2 malleation negative pressure cavity dividing plates; 3 blower fans; 4 first deferent wing heat exchangers; 5 water inlet interface water inlet interfaces; 6 indoor return air temperature sensors; 7 indoor return air inlets; 8 indoor air returning valves; 9 second deferent wing heat exchangers; The hot return air temperature sensor of 10 racks; The hot return air inlet of 11 racks; 12 cooling water water outlet interfaces; 13 chassis drainage interfaces; 14 inflow temperature sensors; 15 indoor air outlets; 16 indoor blow valves; 17 leaving air temp sensors; 18 are access to air conditioning air outlet; 19 are access to the air-conditioning air-valve; 20 air conditioning wind pipes; 21 air conditioner in machine room; 22 air conditioner in machine room return air inlets; 23 return air covers; 24 CWRs; 25 cooling water supply pipes; 26 cooling water pumps; 27 cooling towers; 28 linkage controller display screens; 29 linkage controllers; 30 outdoor temperature humidity sensor and protection boxs; The 31 communications equipment room interior spaces.
The specific embodiment:
Below in conjunction with Figure of description and embodiment content of the present invention is elaborated:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 be the embodiment sketch map of a kind of cooling water dry type air-conditioning box provided by the invention.
A kind of cooling water dry type air-conditioning box; It comprises air-conditioning box casing 1 and is located at the blower fan 3 in the casing 1; At casing inner route clapboard 2 casing 1 is divided into and is divided into positive negative pressure cavity two parts, the air outlet of blower fan 3 is positioned at the malleation chamber, and the air inlet of blower fan 3 is positioned at negative pressure cavity; In the malleation chamber, also be provided with indoor air outlet 15 and indoor blow valve 16, and be access to the air port 18 and the air-valve 19 that is access to air-conditioning of air-conditioning; Contrary airflow direction is equiped with pipe wing heat exchanger and the hot return air inlet of rack in described negative pressure cavity.
In the malleation chamber, be provided with indoor air outlet 15 and indoor blow valve 16; And be access to air conditioning air outlet 18 and be access to air-conditioning air-valve 19, through airduct 20, air-flow is delivered to return air inlet 22 places of air conditioner in machine room 21; And install return air cover 23 additional, so that this air-flow is all sucked by air conditioner in machine room.
Described pipe wing heat exchanger by the first deferent wing heat exchanger 4 and the second deferent wing heat exchanger 9 constitute; On the first deferent wing heat exchanger 4, be provided with cooling water water inlet interface 5; On the casing wall between the first deferent wing heat exchanger 4 and the second deferent wing heat exchanger 9, be provided with indoor return air inlet 7 and indoor air returning valve 8, on the casing wall at the air intake place of the second deferent wing heat exchanger 9, be provided with the hot return air inlet 11 of rack.
Contrary airflow direction is equiped with the first deferent wing heat exchanger 4 and cooling water water inlet interface 5 in dry type air-conditioning box negative pressure cavity; Indoor return air is through indoor return air inlet 7 and indoor air returning valve 8; Communication cabinet hot type wind gets into negative pressure cavity through the hot return air inlet 11 of rack that airduct is connected on the dry type air-conditioning box; After 9 precoolings of the second deferent wing heat exchanger, cool off through the first deferent wing heat exchanger 4 again; The cooling water water outlet interface 12 of cooling water on the second deferent wing heat exchanger 9 flows out to cooling system, the outflow of ponding for anti-in particular cases possible condensed water and when being convenient to clean, and bottom of shell has the ponding dish to drain ponding through chassis drainage interface 13.
Automatic control for ease of the dry type air-conditioning box; The malleation chamber is equiped with leaving air temp sensor 17; Be equiped with indoor return air temperature sensor 6 near the indoor return air inlet 7 of negative pressure cavity; The hot return air inlet of rack 11 places are equiped with the hot return air temperature sensor 10 of rack, and cooling water water inlet place is equiped with inflow temperature sensor 14.
Said dry type air-conditioning box can be cabinet-type or horizontal lift-on/lift-off type.
Said blower fan 3 can be all kinds blower fan, but adjustable speed normally also can adopt two or above parallel runnings, the big air quantity requirement when little air quantity when working simultaneously with air conditioner in machine room to satisfy and dry type air-conditioning box work independently.
Said indoor air outlet 15 can be manual air grille, also can be electronic air grille, and indoor blow valve 16 and be access to air-conditioning air-valve 19 and indoor air returning valve 8 normally Electric air valve or valve plate is to satisfy control requirement automatically.
The hot return air inlet 11 of said indoor return air inlet and rack can be all kinds air port, also can assemble the respective level filter.
Said pipe wing heat exchanger can be divided into first road 4 and second road, 9 spaced apart, also can integral type needn't separate, and can be combined into the hot return air inlet 11 of rack a return air inlet or keep arranged apart with indoor return air inlet 7 this moment.
Said indoor air outlet 11 be access to air conditioning air outlet 18 positions as long as in the malleation chamber, particular location can be provided with as required.
As shown in Figure 5, the control system of cooling water dry type air-conditioning box of the present invention also comprises linkage controller 29; Described linkage controller 29 is made up of display screen and the device that can detect the checkout gear of outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature and can set the wet-bulb temperature value that starts cooling water system, and the checkout gear of described display screen and described detection outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature and the device that can set the wet-bulb temperature value of startup cooling water system are connected.
The control system of described cooling water dry type air-conditioning box also comprises cooling tower 27, cooling water pump 26, CWR 24, cooling water supply pipe 25, and described cooling water water inlet interface 5 is connected with cooling tower 27 through cooling water supply pipe 25 and cooling water pump 26; Described cooling water water outlet interface 12 is connected with cooling tower 27 through CWR 24; Constitute cooling water system by cooling tower 27, cooling water pump 26, CWR 24 and cooling water supply pipe 25.
As shown in Figure 5; A kind of control method of cooling water dry type air-conditioning box; Through an independent linkage controller 29 that is arranged that divides; Automatically detect to reach and pass through display screen demonstration outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature, and can set the wet-bulb temperature value that starts cooling water system.
(1) when outdoor wet-bulb temperature is lower than setting value, outdoor cooling water system (containing cooling tower, coolant pump) starts, and is as shown in Figure 2; This moment, blower fan 3 was in the tick-over state; The inner controller of dry type air-conditioning box cuts out indoor blow valve 16 and indoor air returning valve 8, opens and is access to air-conditioning air-valve 19, with the hot return air precooling of rack; Take away the return air inlet 22 that is sent to air conditioner in machine room 21 after portion of hot is loaded, further cool off through air conditioner in machine room.
(2) when outdoor wet-bulb temperature is higher than setting value (it is poor to contain the width of cloth); Indoor blow valve (16), the state that is access to air-conditioning air-valve (19), indoor air returning valve (8) remain unchanged; Blower fan 3 keeps tick-over, but linkage controller 29 can stop outdoor cooling water system, makes cooling tower, cooling air pump inoperative; The hot type wind of rack is taken out through the blower fan 3 of dry type air-conditioning box and is drawn the return air inlet 22 of sending into air conditioner in machine room 21, thereby improves the efficiency of air conditioner in machine room with the evaporating temperature that improves air conditioner in machine room 21.
(3) reach certain more low value when outdoor wet-bulb temperature; When dry type air-conditioning box internal controller is lower than setting value through the 17 detected temperature of the leaving air temp sensor in the malleation chamber in the dry type air-conditioning box; Indoor blow valve 16 of controller opens and indoor air returning valve 8 are closed and are access to air-conditioning air-valve 19, improve the rotating speed of blower fan 3; If wind pushing temperature still is lower than setting value when air quantity is maximum; Controller will be exported the air-conditioning shutdown signal and give linkage controller, and by linkage controller output signal at stop air conditioner in machine room, alone bear machine room in thermic load by the dry type air-conditioning box this moment.
For prevent winter cooling water system freeze and computer room temperature low excessively, linkage controller 29 will be according to the cooling water temperature, the rotating speed of cooling tower and water pump in adjustment and the cooling system is to guarantee that even cooling water system does not freeze under the lowest temperature climate of locality.
A described cover linkage controller can be controlled the coordinated operation of interior all the cooling water dry type air-conditioning boxs of machine room and all air-conditionings.
Described dry type air-conditioning box internal controller has control dry type air-conditioning box simultaneously and runs on the not high place of temperature requirement alone, and the dry type air-conditioning box hot return air of cabinet air duct to the air-conditioning return air inlet but still can switch the function selecting of using with the air-conditioning interlock not simultaneously of not meeting sb. at the airport.
Claims (10)
1. cooling water dry type air-conditioning box; It is characterized in that: it comprises air-conditioning box casing (1) and is located at the blower fan (3) in the casing (1); At casing inner route clapboard (2) casing (1) is divided into and is divided into positive negative pressure cavity two parts, the air outlet of blower fan (3) is positioned at the malleation chamber, and the air inlet of blower fan (3) is positioned at negative pressure cavity; In the malleation chamber, also be provided with indoor air outlet (15) and indoor blow valve (16), and be access to the air port (18) of air-conditioning and be access to the air-valve (19) of air-conditioning; Contrary airflow direction is equiped with pipe wing heat exchanger and the hot return air inlet of rack in described negative pressure cavity.
2. cooling water dry type air-conditioning box according to claim 1; It is characterized in that: described pipe wing heat exchanger by the first deferent wing heat exchanger (4) and the second deferent wing heat exchanger (9) constitute; On the first deferent wing heat exchanger (4), be provided with cooling water water inlet interface (5); On the casing wall between the first deferent wing heat exchanger (4) and the second deferent wing heat exchanger (9), be provided with indoor return air inlet (7) and indoor air returning valve (8), on the casing wall at the air intake place of the second deferent wing heat exchanger (9), be provided with the hot return air inlet of rack (11).
3. cooling water dry type air-conditioning box according to claim 2 is characterized in that: be provided with cooling water water outlet interface (12) at the medium position place of the second deferent wing heat exchanger (9), be provided with drainage interface (13) at bottom of shell.
4. cooling water dry type air-conditioning box according to claim 3 is characterized in that: on the said first deferent wing heat exchanger (4), be provided with cooling water water inlet place and be equiped with inflow temperature sensor (14).
5. cooling water dry type air-conditioning box according to claim 1; It is characterized in that: on the casing in described malleation chamber, be equiped with leaving air temp sensor (17); Near the indoor return air inlet (7) of described negative pressure cavity, be equiped with indoor return air temperature sensor (6), the hot return air inlet of rack (11) locates to be equiped with the hot return air temperature sensor of rack (10).
6. according to the control system of the described cooling water dry type of claim 1-5 air-conditioning box, it is characterized in that: it also comprises linkage controller (29); Described linkage controller (29) is made up of display screen and the device that can detect the checkout gear of outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature and can set the wet-bulb temperature value that starts cooling water system, and the checkout gear of described display screen and described detection outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature and the device that can set the wet-bulb temperature value of startup cooling water system are connected.
7. the control system of cooling water dry type air-conditioning box according to claim 1; It is characterized in that: it also comprises cooling tower (27), cooling water pump (26), CWR (24), cooling water supply pipe (25), and described cooling water water inlet interface (5) is connected with cooling tower (27) through cooling water supply pipe (25) and cooling water pump (26); Described cooling water water outlet interface (12) is connected with cooling tower (27) through CWR (24); Constitute cooling water system by cooling tower (27), cooling water pump (26), CWR (24) and cooling water supply pipe (25).
8. the control method of cooling water dry type air-conditioning box according to claim 1; It is characterized in that: through an independent linkage controller (29) that is arranged that divides; Automatically detect to reach and pass through display screen demonstration outdoor temperature humidity, wet-bulb temperature, cold in-water temperature, cooling water return water temperature, and set the wet-bulb temperature value that starts cooling water system;
(1) when outdoor wet-bulb temperature is lower than setting value; Outdoor cooling water system starts, and blower fan this moment (3) is in the tick-over state, and the inner controller of dry type air-conditioning box cuts out indoor blow valve (16) and indoor air returning valve (8); Open and be access to air-conditioning air-valve (19); With the hot return air precooling of rack, take away the return air inlet (22) that is sent to air conditioner in machine room (21) after portion of hot is loaded, further cool off through air conditioner in machine room;
(2) when outdoor wet-bulb temperature is higher than setting value; Indoor blow valve (16), the state that is access to air-conditioning air-valve (19), indoor air returning valve (8) remain unchanged; Blower fan (3) keeps tick-over, but linkage controller (29) can stop outdoor cooling water system, makes cooling tower, cooling air pump inoperative; The hot type wind of rack is taken out through the blower fan (3) of dry type air-conditioning box and is drawn the return air inlet (22) of sending into air conditioner in machine room (21), to improve air conditioner in machine room (21) thus evaporating temperature improve the efficiency of air conditioner in machine room;
(3) reach certain more low value when outdoor wet-bulb temperature; When dry type air-conditioning box internal controller is lower than setting value through the detected temperature of leaving air temp sensor (17) in the malleation chamber in the dry type air-conditioning box; Indoor blow valve of controller opens (16) and indoor air returning valve (8) are closed and are access to air-conditioning air-valve (19), improve the rotating speed of blower fan (3); If wind pushing temperature still is lower than setting value when air quantity is maximum; Controller will be exported the air-conditioning shutdown signal and give linkage controller, and by linkage controller output signal at stop air conditioner in machine room, alone bear machine room in thermic load by the dry type air-conditioning box this moment.
9. the control method of cooling water dry type air-conditioning box according to claim 1 is characterized in that: linkage controller (29) will be according to the cooling water temperature, the rotating speed of the cooling water pump in the adjustment cooling system.
10. the control method of cooling water dry type air-conditioning box according to claim 1 is characterized in that: a described cover linkage controller can be controlled the coordinated operation of interior all the cooling water dry type air-conditioning boxs of machine room and all air-conditionings.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104312174A CN102444949A (en) | 2011-12-20 | 2011-12-20 | Cooling water dry air-conditioning box, control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104312174A CN102444949A (en) | 2011-12-20 | 2011-12-20 | Cooling water dry air-conditioning box, control system and control method thereof |
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| CN102444949A true CN102444949A (en) | 2012-05-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456781A (en) * | 2014-11-04 | 2015-03-25 | 芜湖中壹达节能科技有限公司 | Intelligent natural cold source energy saving system |
| CN106765855A (en) * | 2015-11-20 | 2017-05-31 | 艾默生网络能源有限公司 | For control device and method, air-conditioning system in air-conditioning system |
| CN106839171A (en) * | 2017-03-29 | 2017-06-13 | 海信（广东）空调有限公司 | Cold water system, dehumidifier, air conditioner and fan coil type central air conditioner |
| CN110332637A (en) * | 2019-07-17 | 2019-10-15 | 江苏宝奥兰空调设备有限公司 | A kind of cold girder system system and its control method |
| WO2021159654A1 (en) * | 2020-02-13 | 2021-08-19 | 杰马科技（中山）有限公司 | Air conditioning fan, control method therefor, and control device |
| CN113834148A (en) * | 2021-09-10 | 2021-12-24 | 华能嘉祥发电有限公司 | Refrigeration air conditioner assembly for steam double-effect absorption refrigerator |
| CN114017846A (en) * | 2021-12-03 | 2022-02-08 | 青岛海信网络能源股份有限公司 | Control method of gravity heat pipe inter-row air conditioner and gravity heat pipe inter-row air conditioner |
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| CN202442425U (en) * | 2011-12-20 | 2012-09-19 | 福州普泽冷暖设备技术有限公司 | Dry-type air-conditioning box using cooling water and control system thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104456781A (en) * | 2014-11-04 | 2015-03-25 | 芜湖中壹达节能科技有限公司 | Intelligent natural cold source energy saving system |
| CN104456781B (en) * | 2014-11-04 | 2017-04-12 | 芜湖中壹达节能科技有限公司 | Intelligent natural cold source energy saving system |
| CN106765855A (en) * | 2015-11-20 | 2017-05-31 | 艾默生网络能源有限公司 | For control device and method, air-conditioning system in air-conditioning system |
| CN106765855B (en) * | 2015-11-20 | 2020-04-10 | 维谛技术有限公司 | Control device and method for air conditioning system and air conditioning system |
| CN106839171A (en) * | 2017-03-29 | 2017-06-13 | 海信（广东）空调有限公司 | Cold water system, dehumidifier, air conditioner and fan coil type central air conditioner |
| CN110332637A (en) * | 2019-07-17 | 2019-10-15 | 江苏宝奥兰空调设备有限公司 | A kind of cold girder system system and its control method |
| CN110332637B (en) * | 2019-07-17 | 2022-04-26 | 雅凯热能技术(江苏)有限公司 | Cold beam system and control method thereof |
| WO2021159654A1 (en) * | 2020-02-13 | 2021-08-19 | 杰马科技（中山）有限公司 | Air conditioning fan, control method therefor, and control device |
| CN113834148A (en) * | 2021-09-10 | 2021-12-24 | 华能嘉祥发电有限公司 | Refrigeration air conditioner assembly for steam double-effect absorption refrigerator |
| CN114017846A (en) * | 2021-12-03 | 2022-02-08 | 青岛海信网络能源股份有限公司 | Control method of gravity heat pipe inter-row air conditioner and gravity heat pipe inter-row air conditioner |
| CN114017846B (en) * | 2021-12-03 | 2022-10-28 | 青岛海信网络能源股份有限公司 | Control method of gravity heat pipe inter-row air conditioner and gravity heat pipe inter-row air conditioner |
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