CN110469927A - 自耦换热及冷热回收新风除湿空调机 - Google Patents

自耦换热及冷热回收新风除湿空调机 Download PDF

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CN110469927A
CN110469927A CN201910124268.9A CN201910124268A CN110469927A CN 110469927 A CN110469927 A CN 110469927A CN 201910124268 A CN201910124268 A CN 201910124268A CN 110469927 A CN110469927 A CN 110469927A
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28Arrangement or mounting of filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/60Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • 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]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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

自耦换热及冷热回收新风除湿空调机由机箱、空气过滤器、换热器、新风风阀、增氧风阀、回风风阀、排风风阀、增氧风机、除湿风机、热源风机、除湿表冷器、热源表冷器、四通阀、膨胀阀、压缩机与冷媒管路组成。机箱内主要设有分风角板、新风进风腔、增氧腔、回风腔、洁净空气腔、预热预冷腔、干燥新风腔、回热回冷腔。设备通过换热器将热泵自身的冷或热进行自耦换热,达到提升热泵性能与节能的目的,以及通过热泵将排风的冷或热进行高效回收与节能。设备具有能效比高、除湿量大、冷暖空调舒适性较高与新风出口不结露的特点。

Description

自耦换热及冷热回收新风除湿空调机
所属技术领域
自耦换热及冷热回收新风除湿空调机涉及一种空气调节系统,特别是一种通过换热器将热泵自身的冷或热进行自耦换热,达到提升热泵性能与节能的目的,通过热泵将排风的冷或热进行高效回收与节能,以及可以同时满足新风、除湿与冷暖空调要求的设备。
背景技术
众所周知,亚热带地区气候冬天湿冷、春天潮湿、夏天闷热与秋天灰尘较多,室内如无洁净与干燥新风引入,无冷暖空调调节温度,室内会产生潮湿、CO2浓度偏高、温度过低或过冷、灰尘与病菌较多,以及因潮湿导致产生霉菌与异味、衣物、家具与墙面发霉等问题。
目前防止室内潮湿的方法:
其一、采用空调除湿模式来进行除湿,空调冷冻除湿导致室内温度降低,室外进入室内的高温高湿空气更容易凝结,而且因为空调除湿的蒸发温度偏低或偏高,导致除湿效果不显著且能耗高。
其二、采用室内冷冻除湿机除湿,效果明显但能耗较高。
上述两种方法都为室内空气循环被动式除湿方式,不能满足室内新鲜空气需求,而且室外潮湿空气不断地进入室内,室内空气在潮湿与干燥之间往返。
其三、采用新风除湿机防止回潮,但传统新风除湿机主要为室内空气循环回风除湿,新风风量小,新风量在多数场合不能满足需求,即不能完全解决室内CO2含量偏高的问题,而且空气除湿为先制冷后加湿单一的处理方式,因热泵制热量大于制冷量,则夏季除湿时会增加空调制冷负荷。
其四、夏季利用中央空调冷冻水冷却新风及使新风除湿,使夏季室内空气湿度在人的舒适要求之内,但该方法经济上不适合春季新风除湿使用。
目前冷暖空调装置已广泛应用,但传统空调设备只是针对整个室内空气进行调节,室内空气为闭式循环,没有引入室外新鲜空气,没有将室内废气排出,室内空气中氧气消耗后没有补充。特别是分体式空调,在使用过程中门窗关闭,少有新鲜空气进入室内,长期呆在空调房间内会因缺氧导致胸闷、口感、恶心等症状,有害于人们的身体健康。
目前近零建筑四季解决新风、除湿与冷暖空调优化方案,为成本较高的新风除湿机与冷暖空调机组合,还没有一种成本较低的四季解决新风、除湿与冷暖空调的设备。
发明内容
自耦换热及冷热回收新风除湿空调机由机箱、空气过滤器、换热器、新风风阀、增氧风阀、回风风阀、排风风阀、增氧风机、除湿风机、热源风机、除湿表冷器、热源表冷器、四通阀、膨胀阀、压缩机与冷媒管路组成,其中除湿表冷器、热源表冷器、四通阀、膨胀阀、压缩机与冷媒管路组成热泵部分。机箱由新风口、回风口、进风口、排风口、分风角板、新风进风腔、热源进风腔、增氧腔、回风腔、洁净空气腔、预热预冷腔、干燥新风腔、回热回冷腔与混风腔构成。换热器为金属板式空气换热器,换热器进风面A与出风面B相通,进风面C与出风面D相通,进风面A与出风面B中空气与进风面C与出风面D中空气,通过间壁分为依次相隔的两组空气,两组空气按照间壁传导传热原理进行热交换。
热泵冷媒部分冷媒分两种循环流动方式:
第一种、热泵制热:冷媒从压缩机高压排气口排出,依次通过除湿表冷器、膨胀阀与热源表冷器后,回到压缩机低压吸气口,又从压缩机高压排气口排出而循环流动;冷媒将除湿表冷器中新风或回风加热,冷媒从热源表冷器的空气中吸热。
第二种、热泵制冷:冷媒从压缩机高压排气口排出,依次通过热源表冷器、膨胀阀与除湿表冷器后,回到压缩机低压吸气口,又从压缩机高压排气口排出而循环流动;冷媒将除湿表冷器中新风或回风制冷降温至露点温度以下,新风或回风中水蒸汽变为冷凝水排出,达到新风或回风湿度降低的目的;冷媒将除湿表冷器中新风或回风制冷降温在露点温度以上,达到新风或回风降温的要求;冷媒通过热源表冷器的空气散热。
设备根据室内CO2浓度自动运行新风模式与回风模式:
一、新风模式
当室内CO2浓度较高时,新风风阀全部打开与回风风阀稍微打开:
1、热泵根据室内外湿度的大小自动运行:室内外湿度较大时,热泵进行除湿运行,保持室内湿度在舒适的范围;室内外湿度在舒适的范围,热泵自动停止运行,但此时热源风机按最小风量运行进行排风,以保持实时动态检测室内空气回风的温度与湿度。
2、设备运行时,通过热泵压缩机的驱动与四通阀的转换,通过除湿风机与热源风机的驱动,连续对新风进行制冷或制热处理。室外空气通过机箱进风口与分风角板的作用,分为两路进入,第一路进入新风进风腔,第二路进入热源进风腔。
①、新风进风腔中新风通过空气过滤器与新风风阀进入洁净空气腔,然后从换热器进风面A进入,从换热器出风面B流出进入预热预冷腔,而后通过除湿表冷器进入干燥新风腔,再从换热器进风面C进入,从换热器出风面D流出进入回热回冷腔,再通过除湿风机进入混风腔,最后通过机箱的新风口送入室内。
②、第一路进入新风进风腔的空气通过换热器自耦换热的作用,室外进来的湿热空气利用自身已经制冷的空气预冷降温,或利用自身已经制热的空气预热升温,即新风先预冷或先预热再进入除湿表冷器;从除湿表冷器出来的空气,通过换热器自耦换热的作用,得到降温回冷或升温回热再进入回热回冷腔。
③、热源进风腔中空气依次通过热源表冷器、热源风机、机箱的排风口送出室外。
3、设备根据室内外温度的高低自动运行:室内外温度较高时,设备对新风制冷;室内外温度较低时,设备对新风制热。
①、新风制冷时,先得到预冷的新风再进入除湿表冷器,相当于新风得到了更多制冷量用于冷凝除湿,与传统新风制冷除湿相比,相当于热泵运行能耗相同,但其制冷量与除湿量加大,或同样的除湿量其热泵运行能耗减小与更加节能;同时因通过换热器除湿降温的空气得到回热升温,使机箱的新风出口表面温度高于空气露点温度而不会结露,附带地解决了传统新风除湿机机箱新风出口表面温度过低结露的问题。
②、新风制热时,进入除湿表冷器之前的新风得到预热升温,与传统新风制热相比,除湿表冷器冷凝温度升高,避免了冬季室外空气低温热泵运行冷凝温度过低,导致热泵制热效率低的问题,亦免除了冬季低温新风需要电辅热预加热的要求。
③、通过换热器将热泵自身的冷或热进行自耦换热,冷暖空调出风与室内空气温度温差小,达到空调舒适性较高的目的。因冷暖空调出风与室内空气温度温差,比传统风机盘管水空调的温差更小,其冷暖空调的舒适性更优于传统风机盘管水空调。
4、设备通过室内CO2浓度的高低,自动控制增氧风机与增氧风阀:热泵运行时,当通过除湿风机驱动送入室内的新风不足时,增氧风机启动与增氧风阀打开,洁净空气腔中新风直接从增氧风阀进入增氧腔,通过增氧风机进入混风腔,与从除湿风机出来的干燥新风混合后,从机箱新风口送入室内;当室内CO2浓度较低时,增氧风机停机与增氧风阀关闭,此时通过除湿风机驱动送入室内的新风,满足室内空气新鲜的要求。此时,新风分两路从回热回冷腔与增氧腔进入混风腔。
①、因新风制冷除湿需要将新风的温度降低至露点温度以下,而设备热泵的制冷量大小是一定的,故对应处理的新风量则也是一定的,故新风分两路从回热回冷腔与增氧腔进入混风腔,达到室内空气新鲜,而不影响热泵运行除湿效果的要求。
②、传统新风除湿机新风与回风混合后再通过除湿表冷器,除湿以回风为主,其新风主要用于维持室内微正压,防止室外潮湿空气从门窗缝隙进入室内,其新风量不能加大,加大会影响热泵运行的除湿效果,甚至不能将新风温度降低至露点温度以下,而没有除湿效果,故存在着新风量过小与很多时候难以满足室内新风量要求的缺陷。
③、当室内的温度与湿度都在舒适范围时,热泵停止运行,当通过除湿风机驱动送入室内的新风不足时,增氧风机启动与增氧风阀打开,以增加室内的新风量。
5、设备通过除湿新风过滤器的净化、除湿表冷器制冷除湿与除湿表冷器制热,以及通过增氧风机的驱动,达到室内空气升温、降温、净化、干燥与新风增氧的要求。
6、设备通过室内微正压控制排风风阀:当室内新风量较大时,即室内风压大于室外且差值较大时,排风风阀打开,室内空气即排风从机箱的回风口进入回风腔,然后通过排风风阀进入热源进风腔,再依次通过热源表冷器、热源风机、机箱的排风口送出室外;当室内外风压差值较小时,排风风阀关闭。
①、排风经过热源表冷器时,热泵得到排风的冷量或热量,使冷媒的冷凝温度降低或蒸发温度升高,从而改善与提升了热泵的性能,同时,排风的冷量或热量通过热泵转移到除湿表冷器,用于新风制冷或制热,使排风的冷量或热量通过热泵得到高效回收。
②、与传统新风机进风与排风通过全热换热器进行冷热回收相比,冷热回收效率更高,而且省去了全热换热器。
7、回风风阀稍微打开用于通过机箱内温度与湿度传感器,实时动态检测室内空气回风的温度与湿度。
8、与传统新风除湿对新风只有先制冷后制热作用相比:设备对新风单独制冷或单独制热,其制冷量与制热量虽然只需要一般建筑物室空调设计要求的15%左右,但对一般建筑物室内温度可以增加或降低1~2℃,同时因为室内空气湿度也在舒适范围之内,人的体感温度会加或降低2~4℃,故设备运行满足一般建筑物春秋过渡季节冷暖空调的需要。
9、对于近零消耗建筑,因保温效果好,设备的制冷量与制热量可以与空调设计匹配,故设备运行时可四季满足室内新风、除湿与冷暖空调的需要。
二、回风模式
当室内空气CO2浓度较低时,新风风阀稍微打开与回风风阀全部打开:
1、设备根据室内湿度的大小自动运行:室内湿度较大时,热泵进行除湿运行,保持室内湿度在舒适的范围;室内湿度在舒适的范围,热泵自动停止运行。
2、热泵运行时,通过压缩机的驱动与四通阀的转换,通过除湿风机与热源风机的驱动,热泵连续对回风进行制冷或制热处理。
①、回风即室内空气通过机箱的回风口进入洁净空气腔,洁净空气腔中回风从换热器进风面A进入,从换热器出风面B流出进入预热预冷腔,而后通过除湿表冷器进入干燥新风腔,再从换热器进风面C进入,从换热器出风面D流出进入回热回冷腔,再通过除湿风机进入混风腔,最后通过机箱的新风口送入室内。
②、洁净空气腔中回风通过换热器自耦换热的作用,室内进来的湿热空气利用自身已经制冷的空气预冷降温,或利用自身已经制热的空气预热升温,即回风先预冷或先预热后再进入除湿表冷器;从除湿表冷器出来的空气,通过换热器自耦换热的作用,得到降温回冷或升温回热再进入回热回冷腔。
③、室外空气从机箱进风口进入热源进风腔,热源进风腔中空气依次通过热源表冷器、热源风机、机箱的排风口送出室外。
3、设备根据室内温度的高低自动运行:室内温度较高时,设备对回风制冷与除湿;室内温度较低时,设备对回风制热。
①、回风制冷时,先得到预冷的回风再进入除湿表冷器,相当于回风得到了更多制冷量用于冷凝除湿,与传统回风制冷除湿相比,相当于热泵运行能耗相同,但其制冷量与除湿量加大,或同样的除湿量其热泵运行能耗减小与更加节能;同时因通过换热器除湿降温的空气得到回热升温,使机箱的新风出口表面温度高于空气露点温度而不会结露,附带地解决了传统新风除湿机机箱新风出口表面温度过低结露的问题。
②、回风制热时,进入除湿表冷器之前的回风得到预热升温,与传统回风制热相比,除湿表冷器冷凝温度升高,避免了冬季室外空气低温热泵运行冷凝温度过低,导致热泵制热效率低的问题。
③、通过换热器将热泵自身的冷或热进行自耦换热,冷暖空调出风与室内空气温度温差小,达到空调舒适性较高的目的。因冷暖空调出风与室内空气温度温差,比传统风机盘管水空调的温差更小,其冷暖空调的舒适性更优于传统风机盘管水空调。
4、新风风阀稍微打开,少量室外空气进入洁净空气腔与回风混合,主要起维持室内空气最小微正压作用,阻止末经处理的室外空气从门窗缝隙进入室内,以及通过机箱内温度与湿度传感器,实时动态检测室外空气的温度与湿度。
5、当室内温度与湿度都在舒适范围时,除湿风机、排风风机与热泵都停止运行,除湿风风机与热源风机按最小风量运行,以保持实时动态检测室内外空气新风与回风的温湿度,以维持室内空气气压稍微大于室外。
一般而言,夏季室内空气的焓值低于室外,冬季室内空气的焓值高于室外,故回风模式制冷与制热比新风模式运行节能。综上所述,本设备运行通过新风模式与回风模式的转换,通过换热器的自耦换热,通过热泵对回风冷热的回收,达到高效节能的目的。
设备运行时通过热泵对室外空气或室内空气的制冷或制热,通过将室外空气进行除湿与过滤处理后送入室内,对室内的空气进行置换、混合与通风,以及室内废气排出的作用,四季全天候对室内空气进行除湿防潮、新风增氧与除尘净化,使室内空气的温度、湿度、含氧量与洁净度达到舒适与健康的要求。
本设备与传统新风除湿设备相比,设备运行具新风模式与回风模式,都具有能效比高、除湿量大、空调舒适性较高与新风出口不结露的特点。
附图说明
图1是自耦换热及冷热回收新风除湿空调机立面示意图。
图2是图1的A-A剖面图。
图3是热泵制热冷媒循环流动图。
图4是热泵制冷冷媒循环流动图
附图中1是机箱,1-1是增氧腔,1-2是回风口,1-3是回风腔,1-4是新风进风腔,1-5是热源进风腔,1-6是分风角板,1-7是进风口,1-8是排风口,1-9是干燥新风腔,1-10是预热预冷腔,1-11是洁净空气腔,1-12是回热回冷腔,1-13是混风腔,1-14是新风口,2是增氧风阀,3是回风风阀,4是新风风阀,5是排风风阀,6是热源表冷器,7是热源风机,8是除湿表冷器,9是换热器,10是空气过滤器,11是除湿风机,12是增氧风机,13是压缩机,14是四通阀,15是膨胀阀,16是冷媒管路。
具体实施方式
附图中自耦换热及冷热回收新风除湿空调机由机箱(1)、增氧风阀(2)、回风风阀(3)、新风风阀(4)、排风风阀(5)、热源表冷器(6)、热源风机(7)、除湿表冷器(8)、换热器(9)、空气过滤器(10)、除湿风机(11)、增氧风机(12)、压缩机(13)、四通阀(14)、膨胀阀(15)与冷媒管路(16)组成,其中热源表冷器(6)、除湿表冷器(8)、压缩机(13)、四通阀(14)、膨胀阀(15)与冷媒管路(16)组成热泵部分,机箱由增氧腔(1-1)、回风口(1-2)、回风腔(1-3)、新风进风腔(1-4)、热源进风腔(1-5)、分风角板(1-6)、进风口(1-7)、排风口(1-8)、干燥新风腔(1-9)、预热预冷腔(1-10)、洁净空气腔(1-11)、回热回冷腔(1-12)、混风腔(1-13)与新风口(1-14)构成。换热器(9)为金属板式空气换热器,换热器(9)进风面A与出风面B相通,进风面C与出风面D相通,进风面A与出风面B中空气与进风面C与出风面D中空气,通过间壁分为依次相隔的两组空气,两组空气按照间壁传导传热原理进行热交换。
附图1与附图2中:
1、回风风阀(3)关闭与新风风阀(4)打开:
热泵运行时,通过压缩机(13)的驱动与四通阀(14)的转换,通过热源风机(7)与除湿风机(11)的驱动,连续对新风进行制冷或制热处理。
①、室外空气通过机箱(1)进风口(1-7)与分风角板(1-6)的作用形成两路进入,第一路进入新风进风腔(1-4),第二路进入热源进风腔(1-5)。
②、新风进风腔(1-4)中新风通过空气过滤器(10)与新风风阀(4)进入洁净空气腔(1-11),然后从换热器(9)进风面A进入,从换热器(9)出风面B流出进入预热预冷腔(1-10),而后通过除湿表冷器(8)进入干燥新风腔(1-9),再从换热器(9)进风面C进入,从换热器(9)出风面D流出进入回热回冷腔(1-12),再通过除湿风机(11)进入混风腔(1-13),最后通过机箱(1)的送风口(1-14)送入室内。
③、第一路进入新风进风腔(1-4)的空气通过换热器(9)自耦换热的作用,室外进来的湿热空气利用自身已经制冷的空气预冷降温,或利用自身已经制热的空气预热升温,即新风先预冷或先预热后再进入除湿表冷器(8);从除湿表冷器(8)出来的空气,通过换热器(9)自耦换热的作用,得到降温回冷或升温回热再进入回热回冷腔(1-12)。
④、热源进风腔(1-5)中空气依次通过热源表冷器(6)、热源风机(7)、机箱(1)的排风口(1-8)送出室外。
⑤、设备通过室内CO2浓度的高低,自动控制增氧风机(12)与增氧风阀(2):当通过除湿风机(11)驱动送入室内的新风不足时,增氧风机(12)启动与增氧风阀(2)打开,洁净空气腔(1-11)中新风直接从增氧风阀(2)进入增氧腔(1-1),通过增氧风机(12)进入混风腔(1-13),与从除湿风机(11)出来的干燥新风混合后,从机箱(1)的送风口(1-14)送入室内。
⑥、设备通过室内微正压控制排风风阀(5):当室内新风量较大时,即室内风压大于室外且差值较大时,排风风阀(5)打开,室内空气即排风从机箱(1)的回风口(1-2)进入回风腔(1-3),然后通过排风风阀(5)进入热源进风腔(1-5),再依次通过热源表冷器(6)、热源风机(7)、机箱(1)的排风口(1-8)送出室外。
2、回风风阀(3)打开与新风风阀(4)关闭:
热泵运行时,通过压缩机(13)的驱动与四通阀(14)的转换,通过除湿风机(11)与热源风机(7)的驱动,热泵连续对回风进行制冷或制热处理。
①、回风即室内空气通过机箱(1)的回风口(1-2)进入洁净空气腔(1-11),洁净空气腔(1-11)中回风从换热器(9)进风面A进入,从换热器(9)出风面B流出进入预热预冷腔(1-10),而后通过除湿表冷器(8)进入干燥新风腔(1-9),再从换热器(9)进风面C进入,从换热器(9)出风面D流出进入回热回冷腔(1-12),再通过除湿风机(11)进入混风腔(1-13),最后通过机箱(1)的送风口(1-14)送入室内。
②、洁净空气腔(1-11)中回风通过换热器(9)自耦换热的作用,室内进来的湿热空气利用自身已经制冷的空气预冷降温,或利用自身已经制热的空气预热升温,即回风先预冷或先预热后再进入除湿表冷器(8);从除湿表冷器(8)出来的空气,通过换热器(9)自耦换热的作用,得到降温回冷或升温回热再进入回热回冷腔(1-12)。
③、室外空气从机箱(1)进风口(1-7)进入热源进风腔(1-5),热源进风腔(1-5)中空气依次通过热源表冷器(6)、热源风机(7)、机箱(1)的排风口(1-8)送出室外。
3、新风进风腔(1-4)、热源进风腔(1-5)、增氧腔(1-1)、回风腔(1-3)、洁净空气腔(1-11)、预热预冷腔(1-10)、干燥新风腔(1-9)与回热回冷腔(1-12)的构成:
①、机箱(1)的新风进风腔(1-4)由分风角板(1-6)、空气过滤器(10)进风面与机箱(1)包围构成。
②、热源进风腔(1-5)由分风角板(1-6)、排风风阀(5)出风面、热源表冷器(6)进风面与机箱(1)包围构成。
③、增氧腔(1-1)由增氧风阀(2)出风面与机箱(1)包围构成,增氧风机(12)位于增氧腔(1-1)中。
④、回风腔(1-3)由回风风阀(3)进风面、排风风阀(5)进风面、回风口(1-2)与机箱(1)包围构成。
⑤、洁净空气腔(1-11)由新风风阀(4)出风面、增氧风阀(2)出风面、回风风阀(3)出风面、换热器(9)进风面A与机箱(1)包围构成。
⑥、预热预冷腔(1-10)由换热器(9)出风面B、除湿表冷器(8)进风面与机箱(1)包围构成。
⑦、干燥空气腔由换热器(9)进风面C、除湿表冷器(8)出风面与机箱(1)包围构成。
⑧、回热回冷腔(1-12)由换热器(9)出风面D与机箱(1)包围构成,除湿风机(11)位于回热回冷腔(1-12)之中。
附图3热泵制热冷媒循环流动图中:冷媒从压缩机(13)高压排气口排出,依次通过除湿表冷器(8)、膨胀阀(15)、热源表冷器(6)后,回到压缩机(13)低压吸气口,又从压缩机(13)高压排气口排出而循环流动;冷媒将除湿表冷器(8)中新风或回风加热,冷媒从热源表冷器(6)的空气中吸热。
附图4热泵制冷冷媒循环流动图中:冷媒从压缩机(13)高压排气口依次通过热源表冷器(6)、膨胀阀(15)、除湿表冷器(8)后,回到压缩机(13)低压吸气口,又从压缩机(13)高压排气口排出而循环流动;冷媒将除湿表冷器(8)中新风或回风制冷,冷媒通过热源表冷器(6)的空气散热。

Claims (9)

1.自耦换热及冷热回收新风除湿空调机由机箱、空气过滤器、换热器、新风风阀、增氧风阀、回风风阀、排风风阀、增氧风机、除湿风机、热源风机、除湿表冷器、热源表冷器、四通阀、膨胀阀、压缩机与冷媒管路组成,机箱上设有进风口、排风口、新风口与回风口,其特征在于设备中设有新风风阀、回风风阀、增氧风阀、排风风阀、换热器与增氧风机,机箱中设有分风角板、新风进风腔、热源进风腔、增氧腔、回风腔、洁净空气腔、预热预冷腔、干燥新风腔与回热回冷腔。
2.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于新风进风腔由分风角板、空气过滤器进风面与机箱包围构成。
3.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于热源进风腔由分风角板、排风风阀出风面、热源表冷器进风面与机箱包围构成。
4.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于增氧腔由增氧风阀出风面与机箱包围构成,增氧风机位于增氧腔中。
5.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于回风腔由回风风阀进风面、排风风阀进风面、回风口与机箱包围构成。
6.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于洁净空气腔由新风风阀出风面、增氧风阀出风面、回风风阀出风面、换热器进风面A与机箱包围构成。
7.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于预热预冷腔由换热器出风面B、除湿表冷器进风面与机箱包围构成。
8.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于干燥空气腔由除湿表冷器出风面、换热器进风面C与机箱包围构成。
9.根据权利要求1所述自耦换热及冷热回收新风除湿空调机,其特征在于回热回冷腔由换热器出风面D与机箱包围构成,除湿风机位于回热回冷腔中。
CN201910124268.9A 2019-02-22 2019-02-22 自耦换热及冷热回收新风除湿空调机 Pending CN110469927A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112066505A (zh) * 2020-09-03 2020-12-11 浙江曼瑞德环境技术股份有限公司 一种恒流量的控制方法及系统
CN113531769A (zh) * 2021-07-29 2021-10-22 宁波奥克斯电气股份有限公司 一种温湿度控制方法、装置及空调器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112066505A (zh) * 2020-09-03 2020-12-11 浙江曼瑞德环境技术股份有限公司 一种恒流量的控制方法及系统
CN113531769A (zh) * 2021-07-29 2021-10-22 宁波奥克斯电气股份有限公司 一种温湿度控制方法、装置及空调器
CN113531769B (zh) * 2021-07-29 2022-07-12 宁波奥克斯电气股份有限公司 一种温湿度控制方法、装置及空调器

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