JPH08141353A - Dehumidifier - Google Patents

Dehumidifier

Info

Publication number
JPH08141353A
JPH08141353A JP6315462A JP31546294A JPH08141353A JP H08141353 A JPH08141353 A JP H08141353A JP 6315462 A JP6315462 A JP 6315462A JP 31546294 A JP31546294 A JP 31546294A JP H08141353 A JPH08141353 A JP H08141353A
Authority
JP
Japan
Prior art keywords
refrigerant
air
flow path
rotor
desiccant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6315462A
Other languages
Japanese (ja)
Inventor
Masaharu Machida
正晴 町田
Masayasu Okubo
正庸 大久保
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Seisakusho KK
Original Assignee
Toyo Seisakusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Seisakusho KK filed Critical Toyo Seisakusho KK
Priority to JP6315462A priority Critical patent/JPH08141353A/en
Publication of JPH08141353A publication Critical patent/JPH08141353A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F3/1411Air-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 absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423Air-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 absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1004Bearings or driving means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1016Rotary wheel combined with another type of cooling principle, e.g. compression cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1032Desiccant wheel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1056Rotary wheel comprising a reheater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1068Rotary wheel comprising one rotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/108Rotary wheel comprising rotor parts shaped in sector form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1084Rotary wheel comprising two flow rotor segments

Abstract

PURPOSE: To provide a dehumidifier which operates to dehumidify stably during an intermediate period, especially a rainy season, and at low running cost. CONSTITUTION: An adsorptive desiccant rotor 5 filled with an adsorptive desiccant is provided across a treatment air flow path 1 and a regeneration air flow path 2, and a dehumidification cooler 4 is installed on the upstream side of a rotor for the treatment air flow path. In addition, a preheater 8 to which a high temperature gas coolant is supplied from a compressor and a heater 9 which heats the regenerated air heated by the preheater to the adequate level of temperature for the regeneration of the adsorptive desiccant, are installed on the upstream side of a rotor for the regenerated air flow path, and a heat exchanger 10 for waste heat recovery is provided on the downstream side. Further, a forward coolant branch pipe 16b with an operating valve 21 branching out from a forward coolant pipe 16a to the dehumodification cooler 4 is connected to the heat exchanger 10 for waste heat recovery through an expansion valve 18. A backward coolant branch pipe 19b from the heat exchanger is connected to a backward coolant pipe 19a from the dehumidification cooler 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は冷却式除湿と吸着式除湿
を併用した除湿装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying device using both cooling type desorption and adsorption type dehumidification.

【0002】[0002]

【従来の技術】空気を除湿する方式には、冷却式や吸着
式、その他各種の方式があり、これらを単独または組み
合わせた除湿装置が実用化されている。このうち、冷却
式は空気を冷却して空気中の水分を凝縮、分離させて除
湿を行う方式で、高温高湿の空気を除湿するのに適して
おり、ランニングコスト、設備費がともに他の方式に比
べて低く、高温域(露点温度4℃以上)の除湿において
は最も多く利用されている。
2. Description of the Related Art As a method for dehumidifying air, there are various types such as a cooling type, an adsorption type and the like, and a dehumidifying device which is a single type or a combination of these types has been put into practical use. Among them, the cooling type is a method of cooling the air to condense and separate the moisture in the air to dehumidify it, and is suitable for dehumidifying high-temperature and high-humidity air. It is lower than the conventional method and is most often used in dehumidification in high temperature regions (dew point temperature of 4 ° C or higher).

【0003】また吸着式は、空気を吸着乾燥剤に通し、
空気中の水分を乾燥剤に吸着させて除湿を行う方式で、
水分を吸着した乾燥剤に熱風を通すことにより乾燥剤を
再生しながら除湿を行う。吸着式の除湿機には、例えば
被処理空気を流す処理空気流路と熱風を流す再生空気流
路に、乾燥剤を充填したロータを跨いで設け、ロータを
回転させることにより乾燥剤を被処理空気と再生空気へ
交互に接触させて水分の吸着と乾燥剤の再生を交互に行
うもの等があり、低露点の空気が得られるという特長が
ある。
In the adsorption type, air is passed through an adsorption desiccant,
A method of dehumidifying by absorbing the moisture in the air with a desiccant,
Dehumidification is performed while regenerating the desiccant by passing hot air through it. In the adsorption-type dehumidifier, for example, a processing air flow path through which the air to be processed flows and a regeneration air flow path through which hot air flows are provided across a rotor filled with a desiccant, and the desiccant is processed by rotating the rotor. For example, there is one that alternately adsorbs moisture and regenerates the desiccant by alternately contacting air and regenerated air, which has the characteristic that air with a low dew point can be obtained.

【0004】[0004]

【発明が解決しようとする課題】冷却式の除湿機では外
気温が高い場合、除湿用冷却器において冷媒に熱負荷が
充分に掛かるので、圧縮機の作動に支障を来たすことは
ないが、外気温が低い場合には冷媒に熱負荷があまり掛
からず、圧縮機の吸入側圧力が低下して、圧縮機は停止
する。
In the case of a cooling type dehumidifier, when the outside air temperature is high, a sufficient heat load is applied to the refrigerant in the dehumidifying cooler, so that the operation of the compressor is not hindered. When the air temperature is low, the refrigerant is not heavily loaded with heat, the suction side pressure of the compressor decreases, and the compressor stops.

【0005】したがって、中間期、特に梅雨時等の安定
した除湿が行われなければならない時季には、外気温が
低いため圧縮機の吸入側圧力が低下し、圧縮機が停止し
て除湿能力が低下するという問題がある。
Therefore, in the middle of the season, especially during the rainy season, when stable dehumidification is required, the pressure on the suction side of the compressor decreases due to the low outside air temperature, and the compressor stops and the dehumidifying capacity is reduced. There is a problem of decrease.

【0006】また、吸着式の除湿機では乾燥剤の再生用
空気を電気ヒータ等で加熱しており、加熱に要するエネ
ルギーコストが高くつくという問題がある。
Further, in the adsorption type dehumidifier, since the air for regenerating the desiccant is heated by an electric heater or the like, there is a problem that energy cost required for heating becomes high.

【0007】[0007]

【課題を解決するための手段】上述した問題を解決する
ために本発明に係る除湿装置は、吸着乾燥剤が充填さ
れ、モータによって回転駆動させられる吸着乾燥剤ロー
タを、外気取入口から処理空気出口に至る処理空気流路
と再生空気入口から排気口に至る再生空気流路に跨がる
よう設け、処理空気流路の前記ロータよりも上流側に受
液器から膨張弁を経て液冷媒が送り込まれる除湿用冷却
器を設け、再生空気流路の前記ロータよりも上流側には
圧縮機からの高温ガス冷媒が供給されるプレヒータと、
このプレヒータで昇温された再生空気を吸着乾燥剤の再
生に充分な温度までさらに加熱するヒータを、下流側に
は廃熱回収用の熱交換器をそれぞれ設け、前記除湿用冷
却器への冷媒往管から分岐し、開閉弁を備える冷媒往枝
管を前記廃熱回収用熱交換器に膨張弁を介して接続し、
同熱交換器からの冷媒復枝管を前記除湿用冷却器からの
冷媒復管に接続した構造のものとしてある。
In order to solve the above-mentioned problems, a dehumidifying apparatus according to the present invention is an adsorption desiccant rotor filled with an adsorption desiccant and driven to rotate by a motor. Provided so as to straddle the process air flow path leading to the outlet and the regeneration air flow path extending from the regeneration air inlet to the exhaust port, and the liquid refrigerant passing through the expansion valve from the liquid receiver on the upstream side of the rotor of the processing air flow channel. A dehumidifying cooler to be fed is provided, and a preheater to which a high temperature gas refrigerant from a compressor is supplied on the upstream side of the rotor of the regeneration air flow path,
A heater for further heating the regenerated air heated by the preheater to a temperature sufficient for regenerating the adsorbent desiccant, and a heat exchanger for recovering waste heat on the downstream side are respectively provided, and the refrigerant to the dehumidifying cooler is provided. Branching from the forward pipe, a refrigerant forward branch pipe having an on-off valve is connected to the waste heat recovery heat exchanger via an expansion valve,
The refrigerant return pipe from the heat exchanger is connected to the refrigerant return pipe from the dehumidifying cooler.

【0008】[0008]

【作用】処理空気流路を流れる被処理空気は除湿用冷却
器により冷却され、空気中の水分が凝縮、分離される。
除湿用冷却器で除湿された空気はさらに吸着乾燥剤ロー
タで水分を吸着されて低露点の乾燥空気となり、被空調
室へ供給される。
The air to be treated flowing through the treatment air passage is cooled by the dehumidifying cooler, and the moisture in the air is condensed and separated.
The air dehumidified by the dehumidifying cooler is further adsorbed by the adsorption desiccant rotor to become dry air having a low dew point and supplied to the air-conditioned room.

【0009】一方、被空調室からの再生空気はプレヒー
タへ供給される圧縮機からの高温ガス冷媒と熱交換して
予め昇温させられ、さらにヒータにより吸着乾燥剤を再
生するのに充分な温度まで加熱され、吸着乾燥剤ロータ
で吸着乾燥剤から水分を奪って、吸着乾燥剤の水分吸着
能力を再生し、廃熱回収用熱交換器を経て排出口から排
出される。
On the other hand, the regenerated air from the air-conditioned room is heat-exchanged with the high-temperature gas refrigerant from the compressor supplied to the preheater to be preheated, and the heater is at a temperature sufficient to regenerate the adsorbed desiccant. The adsorbent desiccant rotor removes water from the adsorbent desiccant, regenerates the water adsorbing capacity of the adsorbent desiccant, and is discharged from the outlet through the waste heat recovery heat exchanger.

【0010】また、冷媒往枝管の開閉弁を開成すること
により、受液器からの液冷媒は除湿用冷却器だけでなく
廃熱回収用熱交換器にも供給され、ここで再生空気によ
って昇温される。この昇温され、気化されたガス冷媒が
圧縮機に吸入されるので、外気温が低く、除湿用冷却器
だけでは冷媒に熱負荷が充分に掛からない場合であって
も、圧縮機の吸入側圧力が所定に保たれ、圧縮機が安定
して運転される。したがって、梅雨時など外気が低温多
湿な場合であっても除湿能力が低下しない。
Further, by opening the on-off valve of the refrigerant outflow pipe, the liquid refrigerant from the liquid receiver is supplied not only to the dehumidifying cooler but also to the waste heat recovery heat exchanger, where it is regenerated. The temperature is raised. Since the gas refrigerant that has been heated and vaporized is sucked into the compressor, even if the outside air temperature is low and the dehumidifying cooler alone does not apply a sufficient heat load to the refrigerant, the suction side of the compressor The pressure is maintained at a predetermined level and the compressor operates stably. Therefore, even when the outside air is low in temperature and humidity such as in the rainy season, the dehumidifying ability does not decrease.

【0011】[0011]

【実施例】以下、本発明に係る除湿装置の具体例を添付
図面に基づいて詳細に説明する。本発明の除湿装置は除
湿される空気を流す処理空気流路1と、吸着乾燥剤を再
生するための空気を流す再生空気流路2を備えている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of the dehumidifying device according to the present invention will be described below in detail with reference to the accompanying drawings. The dehumidifying device of the present invention includes a processing air flow path 1 for flowing air to be dehumidified and a regeneration air flow path 2 for flowing air for regenerating the adsorbent desiccant.

【0012】処理空気は、外気取入口1aに設けたプレ
フィルタ3から除湿用冷却器4、吸着乾燥剤ロータ5を
経て、処理空気用送風機6により処理空気出口1bから
吐出され、被空調室へ供給されるようになっている。
[0012] The treated air is discharged from the treated air blower 6 from the treated air outlet 1b through the prefilter 3 provided at the outside air intake 1a, the dehumidifying cooler 4 and the adsorption desiccant rotor 5 to the air-conditioned room. It is being supplied.

【0013】再生空気は再生空気入口2aに設けたプレ
フィルタ7からプレヒータ8、電気ヒータ9、吸着乾燥
剤ロータ5、廃熱回収用熱交換器10を経て再生空気用
送風機11により排気口2bから排出されるようになっ
ている。
The regenerated air passes from the prefilter 7 provided at the regenerated air inlet 2a to the preheater 8, the electric heater 9, the adsorbent desiccant rotor 5, the waste heat recovery heat exchanger 10, and the regenerated air blower 11 from the exhaust port 2b. It is supposed to be discharged.

【0014】吸着乾燥剤ロータ5は処理空気流路1と再
生用空気流路に跨いで設けてあり、その構造は例えば図
2に示すように、内部に吸着乾燥剤22が充填され、通
風方向にあけた開口部を金網24等の通風材で覆った吸
着乾燥剤容器23を円筒体5b内にセットしたものとし
てあって、ロータをモータMによって軸5aまわりに回
転駆動させることによりロータ内の乾燥剤が処理空気と
再生空気に交互に接触して処理空気の除湿と熱風による
再生を繰り返すようになっている。
The adsorbent desiccant rotor 5 is provided so as to straddle the processing air flow path 1 and the regeneration air flow path. Its structure is, for example, as shown in FIG. The adsorbent desiccant container 23 whose opening is opened with a ventilation member such as a wire mesh 24 is set in the cylindrical body 5b, and the rotor is driven to rotate around the shaft 5a by the motor M. The desiccant comes into contact with the treatment air and the regeneration air alternately to repeat dehumidification of the treatment air and regeneration with hot air.

【0015】一方、圧縮機12からの高温ガス冷媒は吐
出管13によってプレヒータ8へ送られ、ここで入口2
aからの再生空気を加熱して、凝縮器14に入り、液化
されて受液器15に貯められる。受液器15からの液冷
媒は冷媒往管16aの膨張弁17を経て除湿用冷却器4
に送られ、冷却器4からの冷媒は冷媒復管19aを経て
吸入管20から圧縮機12に吸入される。
On the other hand, the hot gas refrigerant from the compressor 12 is sent to the preheater 8 by the discharge pipe 13, and the inlet 2
The regenerated air from a is heated, enters the condenser 14, is liquefied, and is stored in the liquid receiver 15. The liquid refrigerant from the liquid receiver 15 passes through the expansion valve 17 of the refrigerant outward pipe 16a and then passes through the dehumidifying cooler 4
The refrigerant from the cooler 4 is sucked into the compressor 12 from the suction pipe 20 through the refrigerant return pipe 19a.

【0016】また、冷媒往管16aには開閉弁21を備
える冷媒往枝管16bを接続してある。この開閉弁は夏
季等、外気温が高く、除湿用冷却器4において冷媒に充
分熱負荷が掛かる時季には閉成されるが、梅雨時等外気
温が低く、冷媒に充分な熱負荷が掛からない時季には開
成されるものとしてあって、冷媒往枝管16bに送られ
た液冷媒は開成している開閉弁21から膨張弁18を経
て廃熱回収用熱交換器10に送られ、高温高湿の再生空
気から熱負荷を掛けられる。熱交換器10からの冷媒は
冷媒復枝管19bを経て吸入管20から圧縮機12に吸
入される。
A refrigerant outward branch pipe 16b having an opening / closing valve 21 is connected to the refrigerant outward pipe 16a. This on-off valve is closed during the summer when the outside air temperature is high and the refrigerant in the dehumidifying cooler 4 has a sufficient heat load, but the outside air temperature is low during the rainy season and the heat load on the refrigerant is high. The liquid refrigerant sent to the refrigerant outward branch pipe 16b is sent to the waste heat recovery heat exchanger 10 through the open / close valve 21 and the expansion valve 18 when it is not opened at high temperature. Heat load can be applied from regenerated air with high humidity. The refrigerant from the heat exchanger 10 is sucked into the compressor 12 from the suction pipe 20 via the refrigerant return pipe 19b.

【0017】上述のように構成された本発明の除湿装置
では、処理空気は外気取入口1aに設けたプレフィルタ
3で塵埃を除去され、除湿用冷却器4で冷却されること
により空気中の水分が凝縮、分離して冷却除湿され、続
いて吸着乾燥剤ロータ5でさらに吸着除湿されて送風機
6により処理空気出口1bから吐出される。
In the dehumidifying apparatus of the present invention constructed as described above, the treated air has its pre-filter 3 provided at the outside air intake 1a to remove dust and is cooled by the dehumidifying cooler 4 to be contained in the air. Moisture is condensed and separated, cooled and dehumidified, and then further adsorbed and dehumidified by the adsorbent desiccant rotor 5 and discharged by the blower 6 from the treated air outlet 1b.

【0018】一方、再生空気は再生空気入口2aに設け
られたプレフィルタ7で塵埃を除去され、プレヒータ8
において圧縮機からの高温ガス冷媒と熱交換して加熱さ
れ、さらに電気ヒータ9で吸着乾燥剤を再生するのに必
要な温度まで加熱される。
On the other hand, the regenerated air has its dust removed by the prefilter 7 provided at the regenerated air inlet 2a, and the preheater 8
In, the heat is exchanged with the high-temperature gas refrigerant from the compressor to heat the refrigerant, and the electric heater 9 heats it to a temperature necessary for regenerating the adsorbent desiccant.

【0019】プレヒータ8および電気ヒータ9で加熱さ
れた再生空気は吸着乾燥剤ロータ5で乾燥剤から水分を
奪って乾燥剤の水分吸着能力を再生し、廃熱回収用熱交
換器10を経て再生空気用送風機11により排気口2b
から排出される。
The regenerated air heated by the preheater 8 and the electric heater 9 removes moisture from the desiccant by the adsorption desiccant rotor 5 to regenerate the moisture adsorbing ability of the desiccant, and regenerates through the waste heat recovery heat exchanger 10. Exhaust port 2b by air blower 11
Emitted from.

【0020】外気温が高く、除湿用冷却器だけで充分に
冷媒へ熱負荷が掛かる夏季等には冷媒往枝管16bに設
けた開閉弁21は閉じて使用する。
The open / close valve 21 provided in the refrigerant outflow pipe 16b is closed and used in the summer when the outside air temperature is high and the refrigerant is sufficiently heated by the dehumidifying cooler.

【0021】この場合は圧縮機12からの高温ガス冷媒
は吐出管13によってプレヒータ8に送られ、再生空気
入口2aからの再生空気を加熱し、凝縮器14で凝縮さ
れて冷媒液となり、受液器15に貯められる。
In this case, the high-temperature gas refrigerant from the compressor 12 is sent to the preheater 8 by the discharge pipe 13, heats the regenerated air from the regenerated air inlet 2a, and is condensed in the condenser 14 to become the refrigerant liquid, which is received. It is stored in the container 15.

【0022】受液器15からの冷媒液は冷媒往管16a
の膨張弁17を経て除湿用冷却器4に送られ、除湿用冷
却器4において外気取入口1aからの処理空気を冷却除
湿し、熱負荷を掛けられて吸入管20から圧縮機12に
吸入される。
The refrigerant liquid from the liquid receiver 15 is a refrigerant outward pipe 16a.
Is sent to the dehumidifying cooler 4 through the expansion valve 17, and the dehumidifying cooler 4 cools and dehumidifies the treated air from the outside air intake port 1a, applies a heat load, and is sucked into the compressor 12 from the suction pipe 20. It

【0023】一方、外気温が低く、除湿用冷却器だけで
は充分に冷媒へ熱負荷が掛からない梅雨時等には冷媒往
枝管16bに設けた開閉弁21を開いて使用する。
On the other hand, when the outside air temperature is low and the dehumidifying cooler alone does not apply a sufficient heat load to the refrigerant, the on-off valve 21 provided in the refrigerant branch pipe 16b is opened and used.

【0024】この場合は受液器15からの液冷媒は冷媒
往枝管16bの膨張弁18を経て廃熱回収用熱交換器1
0に送られ、吸着乾燥剤ロータ通過後の高温多湿の再生
空気と熱交換して熱負荷を掛けられて、冷媒復枝管19
bから吸入管20へ送られて除湿用冷却器4からの冷媒
と混合されて圧縮機12へ吸入される。
In this case, the liquid refrigerant from the liquid receiver 15 passes through the expansion valve 18 of the refrigerant outward branch pipe 16b and the heat exchanger 1 for waste heat recovery.
0, and is subjected to heat exchange by exchanging heat with the hot and humid regenerated air that has passed through the adsorbent desiccant rotor.
It is sent from b to the suction pipe 20, is mixed with the refrigerant from the dehumidifying cooler 4, and is sucked into the compressor 12.

【0025】したがって、外気温が低い梅雨等の時季で
あっても、圧縮機に吸入される冷媒は廃熱回収用熱交換
器において高温多湿の再生空気から熱負荷を充分に掛け
られるので、圧縮機の吸入側圧力が低下することなく、
圧縮機は停止することなく安定して運転され、ために除
湿能力が低下しない。
Therefore, even in the rainy season or the like when the outside temperature is low, the refrigerant sucked into the compressor can be sufficiently loaded with heat from the hot and humid regenerated air in the waste heat recovery heat exchanger. Without reducing the suction side pressure of the machine,
The compressor operates stably without stopping, so the dehumidifying capacity does not decrease.

【0026】なお、上述した実施例においては、吸着乾
燥剤を再生させるのに充分な温度まで再生空気を昇温さ
せるヒータを電気ヒータで構成してあるが、蒸気ヒータ
等他のヒータを使用することもできる。
In the above embodiment, the heater for raising the temperature of the regenerated air to a temperature sufficient to regenerate the adsorbent desiccant is composed of an electric heater, but other heaters such as a steam heater are used. You can also

【0027】[0027]

【発明の効果】本発明に係る除湿装置は上述した構成の
ものとしてあるので、次の効果を奏し得る。再生空気流
路の排気口側に廃熱回収用の熱交換器を設け、圧縮機に
戻される冷媒が吸着乾燥剤を処理した後の高温多湿の再
生空気から熱負荷を掛けられるようにしてあるので、外
気温が低い場合であっても圧縮機の吸入側圧力が低下せ
ず、圧縮機が停止することはないので、安定した除湿運
転を行うことができる。
Since the dehumidifying device according to the present invention has the above-mentioned structure, the following effects can be obtained. A heat exchanger for recovering waste heat is provided on the exhaust port side of the regeneration air flow path so that the refrigerant returned to the compressor can be subjected to a heat load from the hot and humid regeneration air after processing the adsorbent desiccant. Therefore, even when the outside air temperature is low, the suction side pressure of the compressor does not decrease and the compressor does not stop, so that stable dehumidifying operation can be performed.

【0028】また、吸着乾燥剤を再生するための再生空
気はプレヒータにおいて圧縮機から吐出された高温ガス
冷媒により予め加熱されるので、再生空気を所要の温度
まで加熱する電気ヒータ等のヒータでの加熱用エネルギ
ーが少なくて済み、ランニングコストの低い除湿装置を
提供することができる。
Further, since the regenerated air for regenerating the adsorbent desiccant is preheated by the high temperature gas refrigerant discharged from the compressor in the preheater, a heater such as an electric heater for heating the regenerated air to a required temperature is used. It is possible to provide a dehumidifying device that requires less heating energy and has a low running cost.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す構成図。FIG. 1 is a configuration diagram showing an embodiment of the present invention.

【図2】吸着乾燥剤ロータの一例を示す断面図。FIG. 2 is a sectional view showing an example of an adsorption desiccant rotor.

【図3】吸着乾燥剤容器の一例を示す見取図。FIG. 3 is a sketch drawing showing an example of an adsorption desiccant container.

【符号の説明】 1 処理空気流路 1a 外気取入口 1b 処理空気出口 2 再生空気流路 2a 再生空気入口 2b 排気口 3 プレフィルタ 4 除湿用冷却器 5 吸着乾燥剤ロータ 5a 軸 5b 円筒体 6 処理空気送風機 7 プレフィルタ 8 プレヒータ 9 電気ヒータ 10 廃熱回収用熱交換器 11 再生空気送風機 12 圧縮機 13 吐出管 14 凝縮器 15 受液器 16a 冷媒往管 16b 冷媒往枝管 17、18 膨張弁 19a 冷媒復管 19b 冷媒復枝管 20 吸入管 21 開閉弁 22 吸着乾燥剤 23 吸着乾燥剤容器 24 金網[Explanation of reference numerals] 1 treated air flow path 1a outside air intake 1b treated air outlet 2 regenerated air flow path 2a regenerated air inlet 2b exhaust port 3 prefilter 4 dehumidifying cooler 5 adsorbent desiccant rotor 5a shaft 5b cylindrical body 6 treatment Air blower 7 Pre-filter 8 Pre-heater 9 Electric heater 10 Heat exchanger for waste heat recovery 11 Regenerative air blower 12 Compressor 13 Discharge pipe 14 Condenser 15 Liquid receiver 16a Refrigerant forward pipe 16b Refrigerant forward pipe 17, 18 Expansion valve 19a Refrigerant return pipe 19b Refrigerant return pipe 20 Suction pipe 21 Open / close valve 22 Adsorption desiccant 23 Adsorption desiccant container 24 Wire mesh

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】吸着乾燥剤が充填され、モータによって回
転駆動させられる吸着乾燥剤ロータを、外気取入口から
処理空気出口に至る処理空気流路と再生空気入口から排
気口に至る再生空気流路に跨がるよう設け、処理空気流
路の前記ロータよりも上流側に受液器から膨張弁を経て
液冷媒が送り込まれる除湿用冷却器を設け、再生空気流
路の前記ロータよりも上流側には圧縮機からの高温ガス
冷媒が供給されるプレヒータと、このプレヒータで昇温
された再生空気を吸着乾燥剤の再生に充分な温度までさ
らに加熱するヒータを、下流側には廃熱回収用の熱交換
器をそれぞれ設け、前記除湿用冷却器への冷媒往管から
分岐し、開閉弁を備える冷媒往枝管を前記廃熱回収用熱
交換器に膨張弁を介して接続し、同熱交換器からの冷媒
復枝管を前記除湿用冷却器からの冷媒復管に接続してな
る除湿装置。
1. An adsorption desiccant rotor, which is filled with an adsorption desiccant and is driven to rotate by a motor, has a treatment air passage extending from an outside air intake to a treatment air outlet and a regeneration air passage extending from a regeneration air inlet to an exhaust outlet. And a dehumidifying cooler in which the liquid refrigerant is sent from the liquid receiver via the expansion valve to the upstream side of the rotor in the process air flow path, and the upstream side of the rotor in the regeneration air flow path Is a preheater to which high-temperature gas refrigerant is supplied from the compressor, and a heater that further heats the regenerated air heated by this preheater to a temperature sufficient to regenerate the adsorbent desiccant. Heat exchangers are respectively provided to branch from the refrigerant forward pipe to the dehumidifying cooler, and a refrigerant forward branch pipe having an on-off valve is connected to the waste heat recovery heat exchanger via an expansion valve. Dehumidifying the refrigerant return pipe from the exchanger Formed by connecting the refrigerant recovery pipe from the cooler dehumidifier.
JP6315462A 1994-11-25 1994-11-25 Dehumidifier Pending JPH08141353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6315462A JPH08141353A (en) 1994-11-25 1994-11-25 Dehumidifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6315462A JPH08141353A (en) 1994-11-25 1994-11-25 Dehumidifier

Publications (1)

Publication Number Publication Date
JPH08141353A true JPH08141353A (en) 1996-06-04

Family

ID=18065655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6315462A Pending JPH08141353A (en) 1994-11-25 1994-11-25 Dehumidifier

Country Status (1)

Country Link
JP (1) JPH08141353A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002089903A (en) * 2000-09-12 2002-03-27 Daikin Ind Ltd Air conditioner
JP2005164184A (en) * 2003-12-05 2005-06-23 Misawa Homes Co Ltd Ventilation device and ventilation method
JP2005283064A (en) * 2004-03-31 2005-10-13 Daikin Ind Ltd Air conditioner
WO2007051286A1 (en) * 2005-11-02 2007-05-10 Air Tech Equipment Ltd. Energy recovery and humidity control system
US7428821B2 (en) 2004-10-26 2008-09-30 Hitachi Plant Technologies, Ltd. Dehumidifying system
JP2010151376A (en) * 2008-12-25 2010-07-08 Mitsubishi Electric Corp Air conditioner and air conditioning system
JP2012052782A (en) * 2010-08-05 2012-03-15 Chofu Seisakusho Co Ltd Desiccant type ventilation fan
JP2014126267A (en) * 2012-12-26 2014-07-07 Daikin Ind Ltd Dehumidification system
JP2014126268A (en) * 2012-12-26 2014-07-07 Daikin Ind Ltd Dehumidification system
JP2014149119A (en) * 2013-01-31 2014-08-21 Daikin Ind Ltd Dehumidification system
WO2016144138A1 (en) * 2015-03-12 2016-09-15 주식회사 경동나비엔 Dehumidifying air conditioner
EP2351969A4 (en) * 2008-09-10 2017-11-29 Daikin Industries, Ltd. Humidity control device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002089903A (en) * 2000-09-12 2002-03-27 Daikin Ind Ltd Air conditioner
JP2005164184A (en) * 2003-12-05 2005-06-23 Misawa Homes Co Ltd Ventilation device and ventilation method
JP4590901B2 (en) * 2004-03-31 2010-12-01 ダイキン工業株式会社 Air conditioner
JP2005283064A (en) * 2004-03-31 2005-10-13 Daikin Ind Ltd Air conditioner
US7428821B2 (en) 2004-10-26 2008-09-30 Hitachi Plant Technologies, Ltd. Dehumidifying system
WO2007051286A1 (en) * 2005-11-02 2007-05-10 Air Tech Equipment Ltd. Energy recovery and humidity control system
EP2351969A4 (en) * 2008-09-10 2017-11-29 Daikin Industries, Ltd. Humidity control device
JP2010151376A (en) * 2008-12-25 2010-07-08 Mitsubishi Electric Corp Air conditioner and air conditioning system
JP2012052782A (en) * 2010-08-05 2012-03-15 Chofu Seisakusho Co Ltd Desiccant type ventilation fan
JP2014126267A (en) * 2012-12-26 2014-07-07 Daikin Ind Ltd Dehumidification system
JP2014126268A (en) * 2012-12-26 2014-07-07 Daikin Ind Ltd Dehumidification system
JP2014149119A (en) * 2013-01-31 2014-08-21 Daikin Ind Ltd Dehumidification system
WO2016144138A1 (en) * 2015-03-12 2016-09-15 주식회사 경동나비엔 Dehumidifying air conditioner

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