CN102087038A - Independent dehumidification air conditioning method and device for adjusting humidity by using external ice-melting cold storage and adjusting temperature by using underground water - Google Patents
Independent dehumidification air conditioning method and device for adjusting humidity by using external ice-melting cold storage and adjusting temperature by using underground water Download PDFInfo
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Abstract
The invention discloses an independent dehumidification air conditioning method for adjusting humidity by using external ice-melting cold storage and adjusting the temperature by using underground water. By the method, independent dehumidification is realized in an independent dehumidification fresh air handling unit by using the capability of continuously outputting low temperature water of the external ice-melting cold storage, and the temperature is adjusted by an underground water source serving as high temperature freezing water. By the method, the independent dehumidification is realized in the independent dehumidification fresh air handling unit by using the capability of continuously outputting the low temperature water of the external ice-melting cold storage, and the temperature is adjusted by the underground water source serving as the high temperature freezing water; meanwhile, year-round indoor air conditioning parameters are optimized by the existing air conditioning comfort theory, the external ice-melting cold storage is used for low-temperature freezing dehumidification, low temperature air supply is performed and sensible heat load is borne by cheap underground water, an air conditioning mode of independent dehumidification and high temperature freezing water cooling is realized, the energy of the natural world is effectively used, the volume and the operating cost of thermal cold and heat sources are lowered, and needed equipment components are integrated into an integrated product, so that a technical scheme and an energy conservation effect are effectively practiced on the premise of ensuring an air conditioning effect.
Description
Technical field
The invention belongs to independent humidity control air-conditioning, ice cold-storage and renewable energy utilization technical field, specifically relate to the independent humidity control air-conditioning method of damping of a kind of outer ice-melt cold-storage and underground water temperature adjustment, and relate to the enforcement device that this method adopted.
Background technology
The air-conditioning system energy consumption is occupied significant proportion in building energy consumption, effectively reducing the technology of air-conditioning system energy consumption and using is the most great problem of present industry development.With regard to air conditioning mode and system schema thereof, with the coupled relation that falls wet and temperature-fall period in the air handling process separately, at first adopt the suitable technique measure to solve the independent humidity control problem, adopt cheap high temperature low-temperature receiver to solve the cooling problem then, thereby realize effective saving of whole energy consumption of air-conditioning system and operating cost thereof, be the technology path that current field of air conditioning is in frontier development, obtained breakthrough in recent years in technology and application facet.Representative technological achievement is the solution damping air-conditioning system technology that Tsing-Hua University river hundred million academicians head the list of signers to develop at present, utilize the extremely strong hygroscopic effect of solution such as lithium bromide that air is carried out degree of depth dehumidifying, utilize high temperature heat pump efficiently to produce the high temperature chilled water, utilize the low-grade heat source about 60～80 ℃ that dehumidification solution is regenerated, thermal process has reduced whole thermal technology's irreversible loss effectively by adopting classification heat exchange, recuperation of heat etc., obtain good comprehensive utilization of energy benefit, and obtained many successful Application.But for now, how more effectively solve cheap low-temp recovery thermal source problem, improve the reliability of special material parts and reduce cost, develop ripe high temperature chilled water unit efficiently, also need experience long technology and use the maturity period with segment market user's aspects such as adaptability of whole energy advantage, the expansion of this technology of components utilising.Solution damping air conditioning mode is used maximum heat-pump-type regenerations owing to be subject to the lower characteristics of condensation side high temperature heat pump COP at present, though be a kind of settling mode of practicality, be not the optimum utilization mode that embodies this technology path comprehensive utilization of energy benefit advantage.
Simultaneously, a lot of new results have appearred in air conditioning comfortableness research aspect, and for example summer air-conditioning indoor design humiture can be selected within the specific limits according to the human thermal sensation, and this provides theoretical foundation for adjusting design parameter saving energy consumption.Usually chose by 45～65% by 24～28 ℃ of dry-bulb temperatures of design, relative humidity in the past as China's comfort air conditioning system design, but be based on energy-saving and cost-reducing needs, Ministry of Construction's regulation public building summer air-conditioning temperature must not be lower than 26 ℃.From the human thermal sensation, 28～30 ℃ of the surrounding air of 26～28 ℃ of dry bulbs, relative humidity 60% and dry bulbs, relative humidity 30～40% are suitable substantially, for this reason, if can realize the good effect on moisture extraction of indoor temperature, then indoor dry-bulb temperature is brought up to 28～30 ℃, it is comfortable that the feeling of human body is still, and brought the benefit that reduces enclosed structure sensible heat load etc. thus, can effectively reduce air-conditioning refrigeration duty 10～15%.In like manner, as adopting the terminal heating of radiation winter, and indoor temperature is reduced by 2 ℃, then can effectively reduce heating thermic load 10～15%.
Ice Thermal Storage Air-Conditioning Technology has obtained extensive use, but occupying at present the ice ball type of main share and interior ice-melt cold-storage technology in ice cold-storage engineering has a unit interval and gets that the cooling rate rate is limited, get difficulties such as cold usefulness deterioration latter stage, not enough all the more with the adaptability of the popularity of air conditioner user condition and requirement and the new development of field of air conditioning technology, and the good characteristic that outer ice-melt cold-storage is had has overcome the former shortcoming, be particularly suitable for combining, realize the whole energy requirement of system with the cold air distribution technology.
On the other hand, the application of water source heat pump air conditioning system is very extensive at present, technology, product and market all move to maturity, but limited by geology and water resources condition, particularly pressing under the prerequisite of enforcement of regulations, do not embody the advantage in the propaganda when comparing with other air-conditioning/heating system aspect energy saving, economy, this will have influence on the development speed and the actual effect of this segmented industry.
If can utilize energy consumption height, the expense height of comprehensive utilization of energy advantage to avoid successfully air conditioning mode of independent humidity control air-conditioning technical, can avoid being subject to too much user's the concrete resources supplIes and the ripe periodic problem of exploitation of some key equipment again, and the good low temperature Cooling and Heat Source condition of water resource heat pump, ice cold-storage low temperature cooling in combination, be a kind of possible and technology path practicality, rapid popularization is implemented and realization energy-saving and emission-reduction benefit, will have important value.
Summary of the invention
The technical problem to be solved in the present invention is: change dehumidifying and the processing procedure of lowering the temperature and being coupled in the conventional air-conditioning, a kind of energy resource consumption is low, reduce thermal technology's thermal source capacity and operating cost thereof are provided, realize independent humidity control, the outer ice-melt cold-storage damping of high temperature chilled water cooling-down air conditioner mode and the independent humidity control air-conditioning method of underground water temperature adjustment, and enforcement device that this method adopts is provided.
For achieving the above object, the present invention is by the following technical solutions:
Among the present invention, the independent humidity control air-conditioning method of damping of a kind of outer ice-melt cold-storage and underground water temperature adjustment, be meant: the ability of utilizing outer ice-melt cold-storage to continue the output water at low temperature realizes independent humidity control in the new blower fan group of independent humidity control, utilize underground water source to carry out temperature adjustment as the high temperature chilled water, it may further comprise the steps:
1. ice-storage heat pump main frame in source is to ice-reserving circulation fluid backwater refrigeration, and the ice-reserving circulation fluid supplies water to enter in the external-melting type accumulation of energy groove and manages outer ice-reserving, obtains cryogenic freezing water; Simultaneously, external-melting type accumulation of energy groove is sent cryogenic freezing water into independent humidity control heat exchanger in the new blower fan group of independent humidity control by upper interface, gets back to the bottom interface of external-melting type accumulation of energy groove after circulation;
2. after outdoor new wind enters the new blower fan group of independent humidity control, within it in the precool heat exchanger device of portion with the heat exchange of high temperature chilled water, carry out precooling;
3. the new wind after the precooling enters independent humidity control heat exchanger and the heat exchange of cryogenic freezing water in the new blower fan group of independent humidity control, dehumidifies;
4. the new wind after the dehumidifying is sent into indoor whole humidity loads of bearing;
5. room air by indoor dry type radiation air-conditioner terminal with its in the high temperature chilled water carry out heat exchange, and be reduced to temperature required, thereby finish air handling process;
6. the precool heat exchanger device that enters in the new blower fan group of independent humidity control of a underground water part carries out the outer new wind of preliminary cooling chamber, a part is mixed into the high temperature chilled water with the water outlet of precool heat exchanger device, and the high temperature chilled water is sent into indoor dry type radiation air-conditioner end bear room temperature lowering; The terminal water outlet of indoor dry type radiation air-conditioner is sent in the condenser of source, ground ice-storage heat pump main frame as cooling water, returns underground.
Above-mentioned underground water adopts 10～19 ℃.
Underground water and the water outlet of precool heat exchanger device are mixed into 17～20 ℃ of high temperature chilled waters.
The independent humidity control aircondition of damping of a kind of outer ice-melt cold-storage and underground water temperature adjustment among the present invention, it comprise underground water well, source ice-storage heat pump main frame, external-melting type accumulation of energy groove, the new blower fan group of independent humidity control and be positioned at indoor dry type radiation air-conditioner end; The new blower fan group of described independent humidity control is made of precool heat exchanger device and independent humidity control heat exchanger, wherein, the water side-entrance of precool heat exchanger device links to each other with the air-conditioning water supply import of dry type radiation air-conditioner end and the delivery port of underground water well, the water side outlet of precool heat exchanger device links to each other with the air-conditioning water supply import of dry type radiation air-conditioner end and the air-conditioning backwater outlet of dry type radiation air-conditioner end, and with lead to source, ground ice-storage heat pump main frame in the water side-entrance of condenser link to each other, behind condenser, return underground water well; The cold-storage water side-entrance of external-melting type accumulation of energy groove links to each other with the water supply outlet of evaporimeter in the ice-storage heat pump main frame of source, ground, and the cold-storage water side outlet of external-melting type accumulation of energy groove links to each other with the backwater import of evaporimeter in the ice-storage heat pump main frame of source, ground; The mouth of a river, cold water side top of external-melting type accumulation of energy groove links to each other with the water side-entrance of independent humidity control heat exchanger in the new blower fan group of independent humidity control, plays the mouth of a river, bottom and links to each other with the water side outlet of independent humidity control heat exchanger; The air inlet of the new blower fan group of independent humidity control and outdoor new wind facies connect, and air outlet links to each other with the room conditioning air outlet.
New blower fan group of above-mentioned independent humidity control and external-melting type accumulation of energy groove are arranged in the same casing.
Above-mentioned external-melting type accumulation of energy groove is outer ice-melt coiled accumulation of energy groove or outer ice-melt/water combined type accumulation of energy groove.
Above-mentioned dry type radiation air-conditioner end is a net grid formula radiation recuperator.
Above-mentioned dry type radiation air-conditioner is terminal for being installed on the embedded radiation recuperator in furred ceiling, wall or the floor.
Adopt the present invention of technique scheme, the ability of utilizing outer ice-melt cold-storage to continue the output water at low temperature realizes independent humidity control in the new blower fan group of independent humidity control, utilize underground water source to carry out temperature adjustment as the high temperature chilled water, the colleague adopts the annual room conditioning parameter of existing air conditioning comfortableness theoretical optimization, outer ice-melt cold-storage cryogenic freezing dehumidifying, cold air distribution, descend cold water to bear sensible heat load at an easy rate, realized independent humidity control, the air conditioning mode of high temperature chilled water cooling, effectively utilized natural energy, the capacity and the operating cost thereof of thermal technology's Cooling and Heat Source have been reduced, and with becoming one of equipment needed thereby parts product, with effective execution technical scheme and energy-saving effect under the prerequisite that guarantees the air-conditioning effect, realize being convenient to design selection, safe and reliable to operation, keep in repair easy, reduce the effect of operating cost.
The present invention is directed to China Yangtze river basin and to the north of vast commerce and resident's the air conditioning mode and scheme that highly effective is provided in area.Source, ground ice-storage heat pump main frame only need adopt ice-reserving type earth source heat pump type, because making full use of the underground cold directly bears most of air conditioner load, source, ground ice-storage heat pump host capacity reduces more than 60～80%, take into full account the needs of effective reduction system irreversible loss in the heat power engineering system design, save power consumption and running cost and reach more than 60～70%, making a breakthrough aspect the air conditioning mode method.The overall balance that the while emphasis has solved the aspects such as high efficiency, security, reliability, practicality, maintainability, initial cost and operating cost of equipment designs and implements, realize great technology and used progress, become current independent humidity control, high temperature chilled water the lower the temperature leading technology with economy and practicality and the products scheme of this air-conditioning technical route utilized.
Description of drawings
Accompanying drawing is an overall structure schematic diagram of the present invention.
The specific embodiment
Among the present invention, the independent humidity control air-conditioning method of damping of a kind of outer ice-melt cold-storage and underground water temperature adjustment is meant: the ability of utilizing outer ice-melt cold-storage to continue the output water at low temperature realizes independent humidity control in the new blower fan group 7 of independent humidity control, utilize underground water source to carry out temperature adjustment as the high temperature chilled water, it may further comprise the steps:
1. 12 pairs of ice-reserving circulation fluids of source ice-storage heat pump main frame backwater freezes, and the ice-reserving circulation fluid supplies water to enter in the external-melting type accumulation of energy groove 1 and manages outer ice-reserving, obtains cryogenic freezing water; Simultaneously, external-melting type accumulation of energy groove 1 is sent cryogenic freezing water into independent humidity control heat exchanger 6 in the new blower fan group 7 of independent humidity control by upper interface, gets back to the bottom interface of external-melting type accumulation of energy groove 1 after circulation;
2. after outdoor new wind enters the new blower fan group 7 of independent humidity control, within it in the precool heat exchanger device 8 of portion with the heat exchange of high temperature chilled water, carry out precooling;
3. the new wind after the precooling enters the independent humidity control heat exchanger 6 and the heat exchange of cryogenic freezing water in the new blower fan group 7 of independent humidity control, dehumidifies;
4. the new wind after the dehumidifying is sent into indoor whole humidity loads of bearing;
5. room air carries out heat exchange by indoor dry type radiation air-conditioner terminal 5 and high temperature chilled water in it, and be reduced to temperature required, thereby finish air handling process;
6. the precool heat exchanger devices 8 that enter in the new blower fan group of independent humidity control 7 of a underground water part carry out the outer new wind of preliminary cooling chamber, a part is mixed into the high temperature chilled water with 8 water outlets of precool heat exchanger device, and the high temperature chilled water is sent into indoor dry type radiation air-conditioner end 5 bear room temperature lowering; Terminal 5 water outlets of indoor dry type radiation air-conditioner are sent in the condenser 11 of source, ground ice-storage heat pump main frame 12 as cooling water, return underground.Need to prove that underground water adopts 10～19 ℃ to be advisable, can be in 10 ℃, 12 ℃, 15 ℃, 17 ℃, 19 ℃ any one; And underground water and 8 water outlets of precool heat exchanger device are mixed into 17～20 ℃ of high temperature chilled waters, and the temperature of high temperature chilled water can be in 17 ℃, 18 ℃, 19 ℃, 20 ℃ any one.
As shown in the figure, the independent humidity control aircondition of damping of a kind of outer ice-melt cold-storage and underground water temperature adjustment, it comprise underground water well 10, source ice-storage heat pump main frame 12, external-melting type accumulation of energy groove 1, the new blower fan group 7 of independent humidity control and be positioned at indoor dry type radiation air-conditioner end 5; The new blower fan group 7 of independent humidity control is made of precool heat exchanger device 8 and independent humidity control heat exchanger 6, wherein, the water side-entrance of precool heat exchanger device 8 links to each other with the delivery port of underground water well 10 after electric T-shaped valve 9 is connected with the air-conditioning water supply import of dry type radiation air-conditioner end 5, the water side outlet of precool heat exchanger device 8 links to each other with the air-conditioning backwater outlet of dry type radiation air-conditioner end 5 after electric T-shaped valve 9 links to each other with the air-conditioning water supply import of dry type radiation air-conditioner end 5, and with lead to source, ground ice-storage heat pump main frame 12 in the water side-entrance of condenser 11 link to each other, behind condenser 11, return underground water well 10; The cold-storage water side-entrance of external-melting type accumulation of energy groove 1 links to each other with the water supply outlet of evaporimeter 13 in the ice-storage heat pump main frame 12 of source, ground, and the cold-storage water side outlet of external-melting type accumulation of energy groove 1 links to each other with the backwater import of evaporimeter 13 in the ice-storage heat pump main frame 12 of source, ground; The mouth of a river, cold water side top of external-melting type accumulation of energy groove 1 links to each other with the water side-entrance of independent humidity control heat exchanger 6 in the new blower fan group 7 of independent humidity control, plays the mouth of a river, bottom and links to each other with the water side outlet of independent humidity control heat exchanger 6; The air inlet of the new blower fan group 7 of independent humidity control links to each other with outdoor new wind A, and air outlet links to each other with room conditioning air outlet B.
Need to prove that the new blower fan group 7 of independent humidity control is a multi-staged air cool-down dehumidification structure, can be arranged in the same casing with accumulation of energy groove, conduit component and control assembly etc., but also split is arranged at each new Ventilator Room.
External-melting type accumulation of energy groove 1 is outer ice-melt coiled accumulation of energy groove or outer ice-melt/water combined type accumulation of energy groove.Adopt this novel ice storage technology both can obtain cryogenic freezing water easily, can further reduce system's energy expenditure again, and can carry out peak load shifting electrical network.
Dry type radiation air-conditioner end 5 can be net grid formula radiation recuperator, can also be for being installed on the embedded radiation recuperator in furred ceiling, wall or the floor.
Wherein, conduit component adopts integrated water source power modular structure, will connect the integral structure that relevant main conduit component assembly such as water pump, valve and airduct such as water source system and air-conditioner water system and Based Intelligent Control parts thereof are combined as integral body.
During the summer cooling, the indoor design parameter is pressed 29 ℃ of dry-bulb temperatures, relative humidity 35% designing apparatus load and capacity.
The operation principle of apparatus of the present invention is:
The dehumidifying of air handling process and cooling are independent mutually, wherein underground water is at first sent into new blower fan group precool heat exchanger device and is born the pre-refrigeration duty of new wind, its backwater and through with the mixed water of underground water water outlet after reach 17～20 ℃ high temperature chilled water and send into dry type radiation air-conditioner end and bear indoor sensible heat refrigeration duty, and feed ground source ice-storage heat pump main condenser again and return underground, melt ice on coil during the ice-storage heat pump main frame night dip electricity of source, ground in the accumulation of energy groove is sent into the ice making of cryogenic freezing water, and cold is stored in the accumulation of energy groove, then provide 2 ℃ chilled water to send into new blower fan group independent humidity control heat exchanger during the air-conditioning cooling daytime and carry out degree of depth dehumidifying by the accumulation of energy groove, new wind after treatment enters air conditioning area in the cold air distribution mode and bears whole humidity loads and part sensible cooling load, and wherein the air-conditioning air outlet is an anti-condensation type structure.
Claims (8)
1. the independent humidity control air-conditioning method of outer ice-melt cold-storage damping and underground water temperature adjustment, it is characterized in that: the ability of utilizing outer ice-melt cold-storage to continue the output water at low temperature realizes independent humidity control in the new blower fan group of independent humidity control (7), utilize underground water source to carry out temperature adjustment as the high temperature chilled water, it may further comprise the steps:
1. source ice-storage heat pump main frame (12) is to ice-reserving circulation fluid backwater refrigeration, and the ice-reserving circulation fluid supplies water to enter in the external-melting type accumulation of energy groove (1) and manages outer ice-reserving, obtains cryogenic freezing water; Simultaneously, external-melting type accumulation of energy groove (1) is sent cryogenic freezing water into independent humidity control heat exchanger (6) in the new blower fan group of independent humidity control (7) by upper interface, gets back to the bottom interface of external-melting type accumulation of energy groove (1) after circulation;
2. after outdoor new wind enters the new blower fan group of independent humidity control (7), within it in the precool heat exchanger device (8) of portion with the heat exchange of high temperature chilled water, carry out precooling;
3. the new wind after the precooling enters the independent humidity control heat exchanger (6) and the heat exchange of cryogenic freezing water in the new blower fan group of independent humidity control (7), dehumidifies;
4. the new wind after the dehumidifying is sent into indoor whole humidity loads of bearing;
5. room air by indoor dry type radiation air-conditioner end (5) with its in high temperature chilled water carry out heat exchange, and be reduced to temperature required, thereby finish air handling process;
6. the precool heat exchanger device (8) that enters in the new blower fan group of independent humidity control (7) of a underground water part carries out the outer new wind of preliminary cooling chamber, a part is mixed into the high temperature chilled water with precool heat exchanger device (8) water outlet, and the high temperature chilled water is sent into indoor dry type radiation air-conditioner end (5) bear room temperature lowering; Indoor dry type radiation air-conditioner end (5) water outlet send into ground source ice-storage heat pump main frame (12) condenser (11) in as cooling water, return underground.
2. the independent humidity control air-conditioning method of outer ice-melt cold-storage according to claim 1 damping and underground water temperature adjustment is characterized in that: described underground water adopts 10～19 ℃.
3. the independent humidity control air-conditioning method of outer ice-melt cold-storage according to claim 1 damping and underground water temperature adjustment is characterized in that: underground water and precool heat exchanger device (8) water outlet are mixed into 17～20 ℃ of high temperature chilled waters.
4. independent humidity control aircondition of implementing required outer ice-melt cold-storage damping of claim 1 and underground water temperature adjustment is characterized in that: it comprise underground water well (10), source ice-storage heat pump main frame (12), external-melting type accumulation of energy groove (1), the new blower fan group of independent humidity control (7) and be positioned at indoor dry type radiation air-conditioner end (5); The new blower fan group of described independent humidity control (7) is made of precool heat exchanger device (8) and independent humidity control heat exchanger (6), wherein, the water side-entrance of precool heat exchanger device (8) links to each other with the air-conditioning water supply import of dry type radiation air-conditioner end (5) and the delivery port of underground water well (10), the water side outlet of precool heat exchanger device (8) links to each other with the air-conditioning water supply import of dry type radiation air-conditioner end (5) and the air-conditioning backwater outlet of dry type radiation air-conditioner end (5), and with lead to ground source ice-storage heat pump main frame (12) in the water side-entrance of condenser (11) link to each other, behind condenser (11), return underground water well (10); The cold-storage water side-entrance of external-melting type accumulation of energy groove (1) links to each other with the water supply outlet of evaporimeter (13) in source, the ground ice-storage heat pump main frame (12), and the cold-storage water side outlet of external-melting type accumulation of energy groove (1) links to each other with the backwater import of leading to the middle evaporimeter (13) of ground source ice-storage heat pump main frame (12); The mouth of a river, cold water side top of external-melting type accumulation of energy groove (1) links to each other with the water side-entrance of independent humidity control heat exchanger (6) in the new blower fan group of independent humidity control (7), plays the mouth of a river, bottom and links to each other with the water side outlet of independent humidity control heat exchanger (6); The air inlet of the new blower fan group of independent humidity control (7) links to each other with outdoor new wind (A), and air outlet links to each other with room conditioning air outlet (B).
5. the independent humidity control aircondition of outer ice-melt cold-storage according to claim 4 damping and underground water temperature adjustment is characterized in that: new blower fan group of described independent humidity control (7) and external-melting type accumulation of energy groove (1) are arranged in the same casing.
6. the independent humidity control aircondition of outer ice-melt cold-storage according to claim 5 damping and underground water temperature adjustment is characterized in that: described external-melting type accumulation of energy groove (1) is outer ice-melt coiled accumulation of energy groove or outer ice-melt/water combined type accumulation of energy groove.
7. the independent humidity control aircondition of outer ice-melt cold-storage according to claim 4 damping and underground water temperature adjustment is characterized in that: described dry type radiation air-conditioner end (5) is a net grid formula radiation recuperator.
8. the independent humidity control aircondition of outer ice-melt cold-storage according to claim 4 damping and underground water temperature adjustment is characterized in that: described dry type radiation air-conditioner end (5) is for being installed on the embedded radiation recuperator in furred ceiling, wall or the floor.
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| CN103134110A (en) * | 2011-11-24 | 2013-06-05 | 王春刚 | Air conditioning system capable of independently controlling temperature and humidity |
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| CN104329759A (en) * | 2014-11-10 | 2015-02-04 | 上海理工大学 | Temperature control dehumidification system and temperature control dehumidification method for fresh air of radiation air conditioner |
| CN104329759B (en) * | 2014-11-10 | 2017-05-10 | 上海理工大学 | Temperature control dehumidification system and temperature control dehumidification method for fresh air of radiation air conditioner |
| CN104633789A (en) * | 2015-02-06 | 2015-05-20 | 重庆大学 | Water source heat pump air conditioner system and control method thereof |
| CN106885320A (en) * | 2016-02-26 | 2017-06-23 | 新晃工业株式会社 | Using the dehumidifying reheating air-conditioning system of underground heat |
| CN107747776A (en) * | 2017-09-21 | 2018-03-02 | 北京同衡能源环境科学研究院有限公司 | A kind of independent temperature-humidity control air-conditioning device and its processing method based on distributed Fresh air handing unit |
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Application publication date: 20110608 |