JPH0130059B2 - - Google Patents
Info
- Publication number
- JPH0130059B2 JPH0130059B2 JP20598885A JP20598885A JPH0130059B2 JP H0130059 B2 JPH0130059 B2 JP H0130059B2 JP 20598885 A JP20598885 A JP 20598885A JP 20598885 A JP20598885 A JP 20598885A JP H0130059 B2 JPH0130059 B2 JP H0130059B2
- Authority
- JP
- Japan
- Prior art keywords
- cooler
- air
- hot gas
- compressor
- gas pipe
- 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.)
- Expired
Links
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000010257 thawing Methods 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Central Air Conditioning (AREA)
Description
【発明の詳細な説明】 〔技術分野〕 本発明は低温・低湿室用の空調装置に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to an air conditioner for low temperature and low humidity rooms.
低温・低湿用の空調装置は、従来は２台のクー
ラーを備えていて、１台のクーラーが冷却・除湿
している間に他方のクーラーをデフロストするよ
うにしてあるが、この従来方式のものではクーラ
ーが複数台必要となり、それだけ風路の切換え配
管系統が複雑となつて、装置費が高くなるという
欠点がある。
Conventionally, air conditioners for low temperatures and low humidity are equipped with two coolers, and while one cooler is cooling and dehumidifying, the other cooler is defrosting. This method requires multiple coolers, which complicates the air passage switching piping system and increases equipment costs.
本発明の目的は１台のクーラーで冷却・除湿と
デフロスト運転ができ、装置費を安くできる低
温・低湿用空調装置を提供できるようにしたこと
にある。
An object of the present invention is to provide a low-temperature, low-humidity air conditioner that can perform cooling, dehumidification, and defrost operation with a single cooler, and can reduce the cost of the device.
本願の低温・低湿空調装置は、圧縮機の吐出口
をガス管にて凝縮器へ接続し、凝縮器は風路に設
けたクーラーに膨張弁を介して接続し、クーラー
の出口は圧縮機の吸入口へ接続し、圧縮機の前記
ガス管からホツトガス管を分岐せしめて、前記風
路におけるクーラーの下流に配したアフターヒー
ターに接続し、同ヒータの出口を前記凝縮器へ接
続し、アフターヒーターに続く風路に配した送風
機を供給気ダクトにて室内へ接続するとともに、
給気ダクトからはデフロスト用バイパスダクトを
分岐せしめて同ダクトを前記クーラーにおける風
路の入口へ接続し、給気ダクトには常時は開いて
いるがデフロスト時には閉じるダンパーを、バイ
パスダクトには常時は閉じているがデフロスト時
には開くダンパーをそれぞれ設け、かつ前記クー
ラーから圧縮機への冷媒戻り管には室内湿度セン
サからの信号により制御される蒸発圧力調整弁
を、また前記ホツトガス管には室内湿度センサか
らの信号により制御されるホツトガス量調整弁を
それぞれ設けた構成のものとしてある。
In the low-temperature, low-humidity air conditioner of the present application, the discharge port of the compressor is connected to the condenser via a gas pipe, the condenser is connected to a cooler installed in the air path via an expansion valve, and the outlet of the cooler is connected to the compressor. A hot gas pipe is connected to the suction port, a hot gas pipe is branched from the gas pipe of the compressor, and connected to an after-heater arranged downstream of the cooler in the air path, and an outlet of the heater is connected to the condenser. A blower placed in the air path leading to the air is connected to the room using a supply air duct,
A defrost bypass duct is branched from the air supply duct, and the duct is connected to the entrance of the air passage in the cooler.A damper is installed in the air supply duct, which is normally open but closed during defrosting, and a damper is installed in the bypass duct, which is normally open. A damper that is closed but opens during defrosting is provided, and an evaporation pressure regulating valve that is controlled by a signal from an indoor humidity sensor is installed in the refrigerant return pipe from the cooler to the compressor, and an indoor humidity sensor is installed in the hot gas pipe. Each of the hot gas flow control valves is provided with a hot gas amount adjusting valve that is controlled by a signal from the hot gas flow control valve.
以下本発明の一実施例を、添付図面に示す一具
体例により説明する。
An embodiment of the present invention will be described below with reference to a specific example shown in the accompanying drawings.
図において符号１は圧縮機で、この圧縮機１か
らの吐出ガス冷媒はガス管２から凝縮器３に入
り、ここで液化された冷媒は送液管４の膨張弁５
を経て、風路Ａに配設した直膨式クーラー７の冷
却コイル７ａへ分配器６から供給され、冷却コイ
ルからの冷媒は戻り管８から圧縮機１に吸入され
る。 In the figure, reference numeral 1 denotes a compressor, and the gas refrigerant discharged from the compressor 1 enters the condenser 3 through the gas pipe 2, where the liquefied refrigerant enters the expansion valve 5 of the liquid supply pipe 4.
The refrigerant is then supplied from the distributor 6 to the cooling coil 7a of the direct expansion type cooler 7 disposed in the air path A, and the refrigerant from the cooling coil is sucked into the compressor 1 through the return pipe 8.
前記ガス管２からはホツトガス管２ａが分岐
し、同ホツトガス管は、風路Ａにおける前記クー
ラー７の下流に配したアフターヒーター９の加熱
コイル９ａに接続され、同コイル９ａからの冷媒
はホツトガス戻り管１０を経て前記凝縮器に導か
れる。風路におけるアフターヒーターの下流側に
はデフロストヒーター１１が設けられ、同ヒータ
ーからの空気は送風機１２により給気ダクト１３
から室内に送り込まれる。 A hot gas pipe 2a branches from the gas pipe 2, and the hot gas pipe is connected to a heating coil 9a of an afterheater 9 disposed downstream of the cooler 7 in the air path A, and the refrigerant from the coil 9a is returned to the hot gas. It is led via pipe 10 to the condenser. A defrost heater 11 is provided downstream of the after-heater in the air passage, and air from the defrost heater 11 is sent to an air supply duct 13 by a blower 12.
sent into the room.
また、給気ダクト１３からはデフロスト時用の
バイパスダクト１４が分岐し、同バイパスダクト
の先端はフイルター１５と前記クーラー７間の風
路、すなわちクーラー７の風路入口に開口してい
る。そして給気ダクト１３内には、常時は開いて
いるがデフロスト時には閉じるダンパー１６ａ
を、バイパスダクト１４内には常時は閉じている
がデフロスト時には開くデフロストダンパー１６
ｂをそれぞれ設けてあり、これらのダンパーはモ
ータMaにより開閉される。 Further, a bypass duct 14 for defrosting is branched from the air supply duct 13, and the tip of the bypass duct opens into an air passage between a filter 15 and the cooler 7, that is, an air passage entrance of the cooler 7. In the air supply duct 13, there is a damper 16a that is normally open but closes during defrosting.
Inside the bypass duct 14 is a defrost damper 16 that is normally closed but opens during defrosting.
b are respectively provided, and these dampers are opened and closed by a motor Ma.
しかしてクーラー７からの戻り管８には湿度制
御用の冷媒蒸発圧力調整弁１７を設けてあり、こ
の調整弁１７は、室内に配した湿度センサ１８か
らの信号により制御される。 A return pipe 8 from the cooler 7 is provided with a refrigerant evaporation pressure regulating valve 17 for humidity control, and this regulating valve 17 is controlled by a signal from a humidity sensor 18 placed indoors.
また圧縮機からのホツトガス管２ａには被空調
室内の温度制御用ホツトガス量調整弁１９を設け
てあり、同調整弁１９は被空調室内に配した温度
センサ２０からの信号により制御される。 Further, the hot gas pipe 2a from the compressor is provided with a hot gas amount adjustment valve 19 for controlling the temperature inside the air-conditioned room, and the adjustment valve 19 is controlled by a signal from a temperature sensor 20 disposed inside the air-conditioned room.
なお、符号１６ｃは風路の入口に設けたダンパ
ーで、モータMbにより開閉され、デフロスト時
には閉ざされる。 Note that reference numeral 16c is a damper provided at the entrance of the air passage, which is opened and closed by the motor Mb, and is closed during defrosting.
この実施例のものの運転は次のごとく行なわれ
る。 The operation of this embodiment is as follows.
定常の低温・低湿運転時において被空調室内の
湿度が高いときには、これを湿度センサ１８ガ検
知して、その信号により蒸発圧力調整弁１７の開
度が大となり、直膨クーラー７におけるコイル７
ａ内の冷媒圧力は低下して、風路の空気を冷却・
除湿する。逆に湿度が低いときには湿度センサ１
８からの信号により蒸発圧力調整弁１７の開度は
絞られ、クーラーコイル７ａ内の冷媒圧力は高く
なつて、除湿能力が低減される。 When the humidity in the air-conditioned room is high during steady low-temperature, low-humidity operation, the humidity sensor 18 detects this, and the signal increases the opening of the evaporation pressure regulating valve 17, causing the coil 7 in the direct expansion cooler 7 to increase.
The refrigerant pressure in a decreases and cools the air in the air passage.
Dehumidify. Conversely, when the humidity is low, humidity sensor 1
The opening degree of the evaporation pressure regulating valve 17 is reduced by the signal from 8, the refrigerant pressure within the cooler coil 7a is increased, and the dehumidification capacity is reduced.
この冷却・除湿された空気は次のアフターヒー
タ９により加熱されて調温され、送風機１２によ
り被空調室へ送り込まれる。 This cooled and dehumidified air is heated and temperature-controlled by the next after-heater 9, and then sent to the air-conditioned room by the blower 12.
この際、被空調室内の温度が高いときには、こ
れを室内温度センサ２０が検知して、その信号に
よりホツトガス量調整弁１９の開度が絞られる。
したがつて圧縮機からのアフターヒーター９への
ホツトガスの分流送入量が減少し、空気の再熱量
は小となつて、空気は降温させられて送風機１２
から室内へ送り込まれる。 At this time, when the temperature in the air-conditioned room is high, this is detected by the room temperature sensor 20, and the opening degree of the hot gas amount regulating valve 19 is throttled based on the signal.
Therefore, the amount of hot gas sent from the compressor to the afterheater 9 is reduced, the amount of air reheated is small, and the temperature of the air is lowered to the blower 12.
sent into the room.
逆に被空調室の温度が低いときには、温度セン
サ２０からの信号によりホツトガス量調整弁１９
の開度が大となり、圧縮機からアフターヒーター
へのホツトガスの分流量が大となつて、アフター
ヒーターを通る空気は昇温される。 Conversely, when the temperature of the air-conditioned room is low, the hot gas amount adjustment valve 19 is activated by a signal from the temperature sensor 20.
The opening degree of the afterheater increases, the flow rate of hot gas from the compressor to the afterheater increases, and the temperature of the air passing through the afterheater increases.
デフロスト運転時には給気ダクト１３のダンパ
ー１６ａと風路Ａの入口ダンパー１６ｃを閉じる
反面、バイパスダクト１４のダンパー１６ｂを開
き、またホツトガス量調整弁１９を全開にする。 During defrost operation, the damper 16a of the air supply duct 13 and the inlet damper 16c of the air passage A are closed, while the damper 16b of the bypass duct 14 is opened, and the hot gas amount adjustment valve 19 is fully opened.
かくすることによりクーラー７よりの空気は、
アフターヒーター９、デフロストヒーター１１、
送風機１２、バイパスダクト１４を経てクーラー
７に戻る循環を繰り返す。この循環中に空気はア
フターヒーターによつて緩められ、緩められた空
気によつてクーラーのデフロストが行われる。 By doing this, the air from cooler 7 becomes
After heater 9, defrost heater 11,
The circulation through the blower 12 and bypass duct 14 and back to the cooler 7 is repeated. During this circulation, the air is loosened by the afterheater, and the cooler is defrosted by the loosened air.
なお、冬期においてデフロスト用の熱量がアフ
ターヒーターのみでは不足するばあいには、デフ
ロストヒーター１１（例えば電熱ヒーターによ
る）を作動させてデフロストをする。 Note that in winter, if the amount of heat for defrosting is insufficient by the after-heater alone, the defrost heater 11 (for example, an electric heater) is activated to defrost.
上述したように、本発明によれば低温・低湿の
空気を得ることができ、しかも定常運転、デフロ
スト運転の切換えを１台のクーラーで行うことが
できて、装置の簡素化、製作コストの低減化を期
せる。
As described above, according to the present invention, low temperature and low humidity air can be obtained, and switching between steady operation and defrost operation can be performed with a single cooler, simplifying the device and reducing manufacturing costs. We can expect it to change.
図は本発明に係る装置の一実施例を示す配管系
統図である。図中の各部の符号の名称は次のとお
りである。
１……圧縮機、２……ガス管、３……凝縮器、
４……送液管、５……膨張弁、６……分配器、７
……クーラー、７ａ……冷却コイル、８……戻り
管、９……アフターヒーター、１０……ホツトガ
ス戻り管、１１……デフロストヒーター、１２…
…送風機、１３……給気ダクト、１４……バイパ
スダクト、１５……フイルター、１６ａ，１６
ｂ，１６ｃ……ダンパー、１７……蒸発圧力調整
弁、１８……室内湿度センサ、１９……ホツトガ
ス量調整弁、２０……室内温度センサ。
The figure is a piping system diagram showing one embodiment of the device according to the present invention. The names of the symbols for each part in the figure are as follows. 1...Compressor, 2...Gas pipe, 3...Condenser,
4... Liquid feed pipe, 5... Expansion valve, 6... Distributor, 7
... Cooler, 7a ... Cooling coil, 8 ... Return pipe, 9 ... After heater, 10 ... Hot gas return pipe, 11 ... Defrost heater, 12 ...
...Blower, 13...Air supply duct, 14...Bypass duct, 15...Filter, 16a, 16
b, 16c... Damper, 17... Evaporation pressure adjustment valve, 18... Indoor humidity sensor, 19... Hot gas amount adjustment valve, 20... Indoor temperature sensor.
Claims (1)
し、凝縮器は風路に設けたクーラーに膨張弁を介
して接続し、クーラーの出口は圧縮機の吸入口へ
接続し、圧縮機の前記ガス管からホツトガス管を
分岐せしめて、前記風路におけるクーラーの下流
に配したアフターヒーターに接続し、同ヒーター
の出口を前記凝縮器へ接続し、アフターヒーター
に続く風路に配した送風機を供給気ダクトにて室
内へ接続するとともに、給気ダクトからはデフロ
スト用バイパスダクトを分岐せしめて同ダクトを
前記クーラーにおける風路の入口へ接続し、給気
ダクトには常時は開いているがデフロスト時には
閉じるダンパーを、バイパスダクトには常時は閉
じているがデフロスト時には開くダンパーをそれ
ぞれ設け、かつ前記クーラーから圧縮機への冷媒
戻り管には室内湿度センサからの信号により制御
される蒸発圧力調整弁を、また前記ホツトガス管
には室内湿度センサからの信号により制御される
ホツトガス量調整弁をそれぞれ設けたことを特徴
とする低温・低湿用空調装置。1 Connect the discharge port of the compressor to the condenser with a gas pipe, connect the condenser to a cooler installed in the air path via an expansion valve, connect the outlet of the cooler to the suction port of the compressor, A hot gas pipe is branched from the gas pipe and connected to an after-heater disposed downstream of the cooler in the air passage, an outlet of the heater is connected to the condenser, and a blower is arranged in the air passage following the after-heater. is connected to the room through a supply air duct, and a defrost bypass duct is branched from the supply air duct and connected to the entrance of the air passage in the cooler. A damper that closes during defrosting is provided, and a damper that is normally closed but opens during defrosting is provided in the bypass duct, and the refrigerant return pipe from the cooler to the compressor is equipped with an evaporation pressure adjustment controlled by a signal from an indoor humidity sensor. An air conditioner for low temperature and low humidity, characterized in that the hot gas pipe is provided with a hot gas amount adjusting valve that is controlled by a signal from an indoor humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20598885A JPS6266032A (en) | 1985-09-17 | 1985-09-17 | Air conditioner for low temperature and low humidity air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20598885A JPS6266032A (en) | 1985-09-17 | 1985-09-17 | Air conditioner for low temperature and low humidity air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266032A JPS6266032A (en) | 1987-03-25 |
| JPH0130059B2 true JPH0130059B2 (en) | 1989-06-15 |
Family
ID=16516038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20598885A Granted JPS6266032A (en) | 1985-09-17 | 1985-09-17 | Air conditioner for low temperature and low humidity air |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6266032A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166594A1 (en) * | 2019-02-15 | 2020-08-20 | ステルスバリュー合同会社 | Information processing device and program |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4927783B2 (en) * | 2008-05-22 | 2012-05-09 | 株式会社Ｋｃｍ | Rotating brake plate and wet brake device including the same |
| US9200829B2 (en) | 2013-09-24 | 2015-12-01 | Walter Stark | Low temperature cooling and dehumidification device with reversing airflow defrost for applications where cooling coil inlet air is above freezing |
| US9541324B2 (en) | 2013-09-24 | 2017-01-10 | Walter Stark | Low temperature cooling and dehumidification device with reversing airflow defrost for dehumidification and water generation applications where cooling coil inlet air is above freezing |
| CN113266566A (en) * | 2021-06-07 | 2021-08-17 | 无锡锡压压缩机有限公司 | Constant humidity control system and method for oil injection screw air compressor |
-
1985
- 1985-09-17 JP JP20598885A patent/JPS6266032A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020166594A1 (en) * | 2019-02-15 | 2020-08-20 | ステルスバリュー合同会社 | Information processing device and program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6266032A (en) | 1987-03-25 |
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