CN103629755A - Multi-function air-conditioning and dehumidifying unit with condensation heat recovery functions - Google Patents

Multi-function air-conditioning and dehumidifying unit with condensation heat recovery functions Download PDF

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Publication number
CN103629755A
CN103629755A CN201310699043.9A CN201310699043A CN103629755A CN 103629755 A CN103629755 A CN 103629755A CN 201310699043 A CN201310699043 A CN 201310699043A CN 103629755 A CN103629755 A CN 103629755A
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CN
China
Prior art keywords
air
unit
water
condensation heat
conditioning
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Application number
CN201310699043.9A
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Chinese (zh)
Inventor
唐毅
杨仕超
罗运有
余鹏
唐辉强
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广东省建筑科学研究院
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Priority to CN201310699043.9A priority Critical patent/CN103629755A/en
Publication of CN103629755A publication Critical patent/CN103629755A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units

Abstract

The invention discloses a multi-function air-conditioning and dehumidifying unit with a condensation heat recovery function. The multi-function air-conditioning and dehumidifying unit comprises a unit shell, wherein a compressor, a water cooled condenser, a condensation heat recoverer, a throttling device, an evaporator, a surface air cooler, an air inlet, a filter, an air feeder and an air outlet are arranged in the unit shell. The compressor, the water cooled condenser, the condensation heat recoverer, the throttling device and the evaporator are sequentially connected through refrigerant pipes to form an own cold source system of the unit. The surface air cooler is connected with a cold source or hot source system of an external central air conditioner through a cold water or hot water return pipe, and the water cooled condenser is connected with an external centralized water cooling system through a connecting water pipe. The multi-function air-conditioning and dehumidifying unit can be used as air cooling multi-function air-conditioning and dehumidifying unit or heating equipment of the central air-conditioner system, can also conduct independent refrigeration when the central air-conditioner stops running, can conduct independent dehumidification and temperature regulation, and is suitable for buildings with the central air-conditioner system, such as museums, art galleries and the like, and buildings needing low-load air-conditioning refrigeration, dehumidification and temperature regulation.

Description

A kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat
Technical field
The invention belongs to refrigeration air-conditioner field, be specifically related to a kind of with surface cooler, carry kind of refrigeration cycle again, also recyclable condensation heat is carried out the air conditioning dehumidifying unit of heat again to air.
Background technology
The central air-conditioning system of existing employing chilled water system, is in operation and has following problem:
(1) there is low load with strong power phenomenon in air-conditioning system.The feature of the central air conditioning of heavy construction: handpiece Water Chilling Units and water pump capacity are large, and cooling load of air-condition is large, and air conditioner load excursion is large.Working period air conditioner load is large, and the methods such as number of units that can be by cold source equipment and amount of capacity collocation form multiple combined capacity, adaptive system load variations, and can efficiently move.But come off duty the period, because overtime work phenomenon is general, if overtime work number is many, central air-conditioning system also can be moved under the state of underload.If overtime work number is few, the room of use is few, and air conditioner load is very little, and central air-conditioning system just there will be low load with strong power phenomenon, and running efficiency of system is extremely low, there will be severe the situation that main frame cannot be opened.In order to meet the part needs of working overtime, or room need to be outside the conventional period long-play, some engineering adds split-type air conditioner for these rooms, after concentrated cold source equipment is closed, moves.For large-scale Gongjian, as add split-type air conditioner, the putting position of outdoor unit is difficult to solve, and therefore has some engineerings separately to establish a set of water loop heat pump air conditioning system, and the situation of low load with strong power just can be alleviated.But no matter be to increase split-type air conditioner or water-loop heat pump, in air-conditioned room, have two cover end-equipments, taken more locus, increased initial cost.
(2) there is the conditioning in Transition Season inadequate phenomenon that dehumidifies in air-conditioning system.For transition season, southern area “Hui Nan Tian at the end of spring and the beginning of summer particularly " " yellow plum sky " season of season and the Yangtze river basin, indoor and outdoor temperature is not high, and thermic load is little, but humidity load is large.Under this weather condition, for constant air volume system, most air conditioning units (end-equipment) are to adopt return air temperature to regulate chilled-water flow, the freezing water yield in air conditioner end equipment reduces the minimizing with indoor refrigeration duty, when return air temperature is less than or equal to indoor design temperature, the chilled water that enters surface cooler will be turned off, and surface cooler is without cooling capacity, room conditioning end-equipment cool-down dehumidification ability variation, indoor humidity is large.Repeatedly, after circulation, humidity is increasing, has a strong impact on life, the work quality of indoor occupant, and excessive humidity may cause that indoor article is mouldy to degenerate, indoor air quality variation.If cool-down dehumidification, because caloric value is little, will cause wind pushing temperature too low by force, indoor environment is uncomfortable.If conditioning in Transition Season adopts all-fresh air system, but season of high humidity not high in this temperature, the humidity of outdoor air approaches saturated, and new wind is directly sent into indoor, will the indoor humidity of increase.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat, this unit can participate in operation when concentrated low-temperature receiver (or thermal source) is opened, again can be when concentrated low-temperature receiver (or thermal source) be closed independent operating, made up the large system of central air conditioning and moved and cause the deficiency that energy consumption is large under underload, and at transition season, but the little humidity load of refrigeration duty is large, can carry out dehumidification and temperature adjustment to air, a tractor serves several purposes, reduces investment outlay, and saves operation energy consumption.
The object of the invention is by taking following technical scheme to realize:
A kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat, comprise machine unit shell, it is characterized in that: in described machine unit shell, be provided with compressor, water-cooled condenser, condensation heat recover, throttling arrangement, evaporimeter, surface cooler, air inlet, filter, pressure fan and air outlet; Described compressor, water-cooled condenser, condensation heat recover, throttling arrangement are connected by refrigerant pipe successively with evaporimeter, form self cold source system of unit; Described surface cooler connects low-temperature receiver or the heat source system of outside central air conditioning by cold water or hot water for return pipe; Described water-cooled condenser connects the cooling water system of outside concentrated setting by connecting water pipe; Described filter be located at air inlet place, surface cooler before; Described surface cooler be located at evaporimeter before; Described pressure fan is located at air outlet place.
As a further improvement on the present invention, cold-producing medium stop valve and refrigerant flow control valve are installed on the refrigerant inlet pipeline section of described condensation heat recover, when air-treatment, do not need again when hot, cold-producing medium stop valve to be closed; When system needs when hot, cold-producing medium stop valve to be opened again, by refrigerant flow control valve, regulate heat more simultaneously, realize the function that regulates wind pushing temperature.
As one embodiment of the present invention, the cooling water system that described water-cooled condenser connects by connecting water pipe is cooling tower, by cooling tower, gets rid of unnecessary condensation heat.
Unit of the present invention is when being used the low-temperature receiver of outside central air conditioning or heat source system, self cold source system is not worked, low-temperature receiver (or thermal source) system by central air conditioning provides cold water (or hot water), and the return air of unit or new wind are carried out to cooling down or heat treated.
Unit of the present invention is in air conditioner refrigerating season, when not using the cold source system of outside central air conditioning, utilizes self cold source system of unit to carry out cooling, and air is carried out to cool-down dehumidification.
Unit of the present invention is at moist transition season, or humidity is controlled and required in high situation, when surface cooler quits work, adopt self cold source system to air carry out cool-down dehumidification and again the dehumidification and temperature adjustment of heat process.
Unit of the present invention is when the humiture of air intake is suitable, and surface cooler and self cold source system are not all worked, and pressure fan uses as blower fan.
The air that unit of the present invention is processed comprises new return air or the multiple situation of all-fresh air of indoor return air, mixing, and the refrigerated dehumidification ability of unit is carried out the capacity adjustment of corresponding component according to the air intake parameter of setting.
Improvement of the present invention comprises following several respects: (1) is provided with surface cooler, can utilize the outside air conditioner cold water (or hot water) of concentrating low-temperature receiver (or thermal source) to provide to carry out refrigerated dehumidification or heat treated to air; (2) a set of independently cold source system is set self, when outside concentrates the cold water (or hot water) of low-temperature receiver (or thermal source) to quit work, the cold source system self arranging can independent operating; (3) described condensation heat mainly connects external refrigeration tower by water cooling heat exchanger by cooling water pipe, condensation heat is drained into outdoor; (4) refrigerant pipe that enters condensation heat recover is provided with cold-producing medium stop valve, by switch cold-producing medium stop valve, can make unit under two kinds of operating modes of heat, change after refrigerated dehumidification and refrigerated dehumidification again; (5) refrigerant pipe that enters condensation heat recover is provided with refrigerant flow control valve, can regulate by the aperture of adjusting refrigerant flow rate control valve the refrigerant flow that enters condensation heat recover, thereby regulate heat again, realize the function that regulates wind pushing temperature; (6) unit can, by adjusting the amount of capacity of corresponding construction parts, meet the operation demand of return air operating mode or new wind operating mode.
The refrigerant flow direction of self cold source system of multi-functional air conditioner of the present invention dehumidifying unit is: cold-producing medium enters respectively water-cooled condenser and condensation heat recover after compressor compression, converge afterwards, after throttling arrangement throttling, enter evaporimeter again, return compressor low-pressure end, complete a kind of refrigeration cycle, self the independent cooling source system that forms air-conditioning unit, externally low-temperature receiver (or thermal source) stops unit providing in the situation of cold water (or hot water) and move.Cold source system moves by two kinds of modes: (1) is when only needing air to carry out cool-down dehumidification, can close the cold-producing medium stop valve of being located on condensation heat recover entrance refrigerant pipe, condensation heat transfers heat to cooling water system by water cooled condenser and discharges.Now the processing procedure of air is: air carries out cooling and dehumidifying through evaporimeter, then delivers to indoor.(2) when air humidity is large or indoor Temperature and Humidity Control is had relatively high expectations, need to carry out cool-down dehumidification while heating up again to air, the cold-producing medium stop valve on condensation heat recover entrance refrigerant pipe is located in unlatching, by the refrigerant flow control valve on refrigerant pipe, regulate as required the heat that enters condensation heat recover, remaining a large amount of condensation heat transfer heat to cooling water system by water cooling heat exchanger and discharge.Now the processing procedure of air is: air carries out cooling and dehumidifying through evaporimeter, then heats through condensation heat recover, realizes the dehumidification and temperature adjustment to air.
Compare with common air-conditioning unit, tool of the present invention has the following advantages:
(1) unit of the present invention is provided with surface cooler, while having the low-temperature receiver of available central air conditioning to provide cold water for surface cooler in building, this unit can carry out air conditioner refrigerating to air as common air conditioning unit, and cool-down dehumidification, identical with common air conditioning end-equipment function.
(2) unit of the present invention is provided with surface cooler, while having the thermal source of available central air conditioning to provide hot water for surface cooler in building, this unit can carry out air-conditioning heat supply to air as common air conditioning unit, identical with common air conditioning end-equipment function.
(3) unit of the present invention carries independently cold source system, and when daytime in summer, the routine work time, refrigerating capacity was large, the cold source system that unit of the present invention carries does not start, and the cold water in surface cooler provides refrigerating capacity.When the unconventional working time, because of overtime work or technological requirement, in building, only there is a small amount of room at long-play under underload, if outside, to concentrate cold source system that cold water is not provided, can open the cold source system of unit of the present invention, air is carried out to air conditioner refrigerating (cool-down dehumidification).Both meet user's air-conditioning demand, reached again the energy saving in running of system.
(4) at transition season, when unit EAT is low, during high humidity, open cold source system of the present invention, utilize the condensation heat in condensation heat recover to carry out heat treatment again to the air after evaporimeter cool-down dehumidification, make the indoor comfortable humiture requirement that reaches, realize the function that the humiture of air-supply is regulated.Reclaiming the condensation heat of air-conditioning air is carried out to heat again, is also a kind of conservation measures.
(5) the present invention has self independently cold source system, adopts water-cooled condenser discharge condensation heat, and the application in large public building will be more flexible.
(6) the present invention can design by new wind operating mode or return air operating mode, is applicable to the resemble construction such as the museum that control is had relatively high expectations to humidity, southern damp-heat area, the Art Museum, can avoid indoor showpiece the occurrence of wetness, mouldy phenomenon to occur; Also be applicable to very much the central air-conditioning system of the building in transition season high humidity area, as have “Hui Nan Tian " southern area and the Yangtze-Huaihe River Valley in " yellow plum sky ".
figure of description
Fig. 1 is structural representation of the present invention.
The specific embodiment
A kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat as shown in Figure 1, comprise machine unit shell 8, in machine unit shell 8, be provided with compressor 1, water-cooled condenser 2, cold-producing medium stop valve 3, refrigerant flow control valve 4, condensation heat recover 5, throttling arrangement 6, evaporimeter 7, surface cooler 11, air inlet 9, filter 10, pressure fan 12 and air outlet 13; Compressor 1, water-cooled condenser 2, condensation heat recover 5, throttling arrangement 6 and evaporimeter 7 are connected by refrigerant pipe successively, form self cold source system of unit; Surface cooler 11 connects low-temperature receiver or the heat source system of outside central air conditioning by cold water or hot water for return pipe; Water-cooled condenser 2 connects the cooling water system (cooling tower) of outside concentrated setting by connecting water pipe; Filter 10 be located at air inlet 9 places, surface cooler 11 before; Surface cooler 11 be located at evaporimeter 7 before; Pressure fan 12 is located at air outlet 13 places; Cold-producing medium stop valve 3 and cold-producing medium electric control valve 4 are arranged on the refrigerant inlet pipeline section of condensation heat recover 5.
The operation principle of the multi-functional air conditioner dehumidifying unit that band condensation heat of the present invention reclaims is:
While having available central air conditioning low-temperature receiver (or thermal source) to provide cold water (or hot water) for surface cooler in building, self cold source system of air-conditioning unit is not worked, and surface cooler 11 is used the cold water (or hot water) of central air conditioning low-temperature receiver (or thermal source) systems to carry out air conditioner refrigerating (or air-conditioning heating) to air-conditioning return air and processes.Its air handling process is: pending air enters air-conditioning unit from air inlet 9, through filter 10, carry out dust removal and filtration, then through surface cooler 11, carrying out cooling down (or heating) processes, while flowing through evaporimeter 7 and condensation heat recover 5, do not process, finally by pressure fan 12, through air outlet 13, send into indoor.
In the unconventional working time in summer, because of overtime work or technological requirement, in building, only there is a small amount of room need to be at long-play under underload, while concentrating cold source system not provide cold water in building, self cold source system work of unit, carries out air conditioner refrigerating (cool-down dehumidification) to air.Now, the cold-producing medium stop valve 3 of condensation heat recover 5 porch is closed, and opens the outside cooling water system connecting of unit simultaneously, by cooling water system, gets rid of condensation heat.The flow direction of unit self cold source system cold-producing medium is: cold-producing medium, after compressor 1 compression, enters water-cooled condenser 2, after throttling arrangement 6 throttlings, enters evaporimeter 7, returns compressor 1 low-pressure end, completes a circulation.Its air handling process is: pending air-conditioning return air enters air-conditioning unit from air inlet 9, through filter 10, carry out dust removal and filtration, by out-of-work surface cooler 11, through evaporimeter 7 cooling and dehumidifyings, after idle condensation heat recover 5, by pressure fan 12, through air outlet 13, send into indoor again.
At transition season, when unit EAT is low, high humidity need to dehumidify, surface cooler 11 is without outside central air conditioning low-temperature receiver supply cold water, and self cold source system work of air-conditioning unit, carries out cooling and dehumidifying and heat treatment again to air.Now, the cold-producing medium stop valve 3 of condensation heat recover 5 entrances is opened, its refrigerant flow direction is: cold-producing medium is after compressor 1 compression, sub-fraction enters condensation heat recover 5, remaining major part enters water-cooled condenser 2, and cold-producing medium converges after air-cooled and two condensers of water-cooled, after throttling arrangement 6 throttlings, enters evaporimeter 7, return compressor 1 low-pressure end, complete a kind of refrigeration cycle.Refrigerant flow control valve 4 on refrigerant pipe can pass through to regulate regulation heat again, thereby regulates wind pushing temperature, and unnecessary condensation heat is discharged by cooling water system after water-cooled condenser 2 heat exchange.Its air handling process is: air enters air-conditioning unit by air inlet 9, through filter 10, carry out dust removal and filtration, by out-of-work surface cooler 11, through evaporimeter 7 cooling and dehumidifyings, after condensation heat recover 5 heat temperature raisings, finally by pressure fan 12, through air outlet 13, send into indoor again.
The air that unit of the present invention is processed can comprise the air of the various states such as the new return air, all-fresh air of indoor return air, mixing, and the refrigerated dehumidification ability of unit can be carried out the capacity adjustment of corresponding component according to the air intake parameter of setting.
At dry transition season, as autumn, outdoor air is dry, and temperature is moderate, and this outdoor air is as new wind, and unit is without new wind is carried out to hot wet process.Now, the surface cooler 11 of air-conditioning unit and self cold source system all quit work.Outdoor new wind enters air-conditioning unit from air inlet 9, carries out dust removal and filtration through filter 10, then passes through out-of-work surface cooler 11, evaporimeter 7 and condensation heat recover 5, is sent into indoorly by pressure fan 12 through air outlet 13, and system can realize all-fresh air operation.

Claims (8)

1. the multi-functional air conditioner dehumidifying unit reclaiming with condensation heat, comprise machine unit shell (8), it is characterized in that: in described machine unit shell (8), be provided with compressor (1), water-cooled condenser (2), condensation heat recover (5), throttling arrangement (6), evaporimeter (7), surface cooler (11), air inlet (9), filter (10), pressure fan (12) and air outlet (13); Described compressor (1), water-cooled condenser (2), condensation heat recover (5), throttling arrangement (6) and evaporimeter (7) are connected by refrigerant pipe successively, form self cold source system of unit; Described surface cooler (11) connects low-temperature receiver or the heat source system of outside central air conditioning by cold water or hot water for return pipe; Described water-cooled condenser (2) connects the cooling water system of outside concentrated setting by connecting water pipe; Described filter (10) is located at that air inlet (9) is located, surface cooler (11) before; Described surface cooler (11) be located at evaporimeter (7) before; Described pressure fan (12) is located at air outlet (13) and locates.
2. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 1, is characterized in that: cold-producing medium stop valve (3) and refrigerant flow control valve (4) are installed on the refrigerant inlet pipeline section of described condensation heat recover (5).
3. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 1 and 2, is characterized in that: the cooling water system that described water-cooled condenser (2) connects by connecting water pipe is cooling tower, by cooling tower, gets rid of unnecessary condensation heat.
4. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 3, it is characterized in that: described unit is when being used the low-temperature receiver of outside central air conditioning or heat source system, self cold source system is not worked, low-temperature receiver or heat source system by central air conditioning provide cold water or hot water, and the return air of unit or new wind are carried out to cooling down or heat treated.
5. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 3, it is characterized in that: described unit is in air conditioner refrigerating season, when not using the cold source system of outside central air conditioning, utilize self cold source system of unit to carry out cooling, air is carried out to cool-down dehumidification.
6. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 3, it is characterized in that: described unit is at moist transition season, or humidity is controlled and required in high situation, when surface cooler (11) quits work, adopt self cold source system to air carry out cool-down dehumidification and again the dehumidification and temperature adjustment of heat process.
7. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 3, it is characterized in that: described unit is when the humiture of air intake is suitable, surface cooler (11) and self cold source system are not all worked, and pressure fan (12) uses as blower fan.
8. a kind of multi-functional air conditioner dehumidifying unit reclaiming with condensation heat according to claim 3, it is characterized in that: the air that described unit is processed comprises new return air or the multiple situation of all-fresh air of indoor return air, mixing, the refrigerated dehumidification ability of unit is carried out the capacity adjustment of corresponding component according to the air intake parameter of setting.
CN201310699043.9A 2013-12-19 2013-12-19 Multi-function air-conditioning and dehumidifying unit with condensation heat recovery functions CN103629755A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925668A (en) * 2014-04-28 2014-07-16 上海理工大学 Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method
CN104033973A (en) * 2014-06-23 2014-09-10 钱月珍 Mosquito-repelling air conditioner
CN105444267A (en) * 2015-12-14 2016-03-30 张勇 Air handling unit
CN106152333A (en) * 2015-04-07 2016-11-23 大金工业株式会社 A kind of air conditioning system
CN106895529A (en) * 2017-04-10 2017-06-27 深圳沃海森科技有限公司 The centrifugal compressor cooling water air conditioner unit of multistage regulation
CN109855209A (en) * 2019-03-22 2019-06-07 泰豪科技股份有限公司 A kind of cleaning fresh air unitary air conditioner
CN112066457A (en) * 2020-09-17 2020-12-11 中科(广东)环境科技有限公司 Control method for tail end of efficient intelligent warm and humid air conditioner

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CN203083033U (en) * 2013-01-15 2013-07-24 广东省建筑科学研究院 Double-cold-source dehumidification air conditioner unit
CN103411278A (en) * 2013-08-23 2013-11-27 机械工业第三设计研究院 Fresh air handling unit suitable for air conditioning system allowing independent temperature and humidity control
CN203642369U (en) * 2013-12-19 2014-06-11 广东省建筑科学研究院 Multifunctional air conditioning dehumidification unit with condensation heat recycling function

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JP2002186824A (en) * 2000-12-20 2002-07-02 Fujitsu General Ltd Dehumidifier
JP2005291535A (en) * 2004-03-31 2005-10-20 Daikin Ind Ltd Humidifier
CN203083033U (en) * 2013-01-15 2013-07-24 广东省建筑科学研究院 Double-cold-source dehumidification air conditioner unit
CN103411278A (en) * 2013-08-23 2013-11-27 机械工业第三设计研究院 Fresh air handling unit suitable for air conditioning system allowing independent temperature and humidity control
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925668A (en) * 2014-04-28 2014-07-16 上海理工大学 Direct-current frequency conversion constant-temperature and humidity set achieving condensation heat recovery and heat and humidity separation control method
CN104033973A (en) * 2014-06-23 2014-09-10 钱月珍 Mosquito-repelling air conditioner
CN106152333A (en) * 2015-04-07 2016-11-23 大金工业株式会社 A kind of air conditioning system
CN106152333B (en) * 2015-04-07 2019-10-01 大金工业株式会社 Air-conditioning system and its control method
CN105444267A (en) * 2015-12-14 2016-03-30 张勇 Air handling unit
CN105444267B (en) * 2015-12-14 2019-07-23 张勇 A kind of air-treatment unit
CN106895529A (en) * 2017-04-10 2017-06-27 深圳沃海森科技有限公司 The centrifugal compressor cooling water air conditioner unit of multistage regulation
CN109855209A (en) * 2019-03-22 2019-06-07 泰豪科技股份有限公司 A kind of cleaning fresh air unitary air conditioner
CN112066457A (en) * 2020-09-17 2020-12-11 中科(广东)环境科技有限公司 Control method for tail end of efficient intelligent warm and humid air conditioner

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