JPS59176548A - Dehumidifying drier - Google Patents
Dehumidifying drierInfo
- Publication number
- JPS59176548A JPS59176548A JP4871683A JP4871683A JPS59176548A JP S59176548 A JPS59176548 A JP S59176548A JP 4871683 A JP4871683 A JP 4871683A JP 4871683 A JP4871683 A JP 4871683A JP S59176548 A JPS59176548 A JP S59176548A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- compressor
- way valve
- reheater
- air
- 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
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は木材や漬水産物の乾燥、干物作シ等を行うため
に使用する除湿乾燥機に係り、詳しくは冷凍サイクルを
利用して乾燥室内の空気を除湿乾燥させる除湿乾燥機に
関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a dehumidifying dryer used for drying wood and pickled fish products, drying fish crops, etc. This invention relates to a dehumidifying dryer that dehumidifies and dries air.
この種の従来の除湿乾燥機としては、第１図及び第２図
に示した構成のものが知られている。第１図の除湿乾燥
機は、圧縮機１、凝縮器２、減圧装置３、蒸発器４の機
器より構成される冷凍サイクルと、温水や蒸気、電気等
を熱源とする加熱器５とを備え、除湿乾燥すべき空気の
流れ（矢印イ）に対して前記凝縮器２を上流側に、かつ
前記加熱器５を下流側にそれぞれ配設した構成となって
いる。そして、前記冷凍サイクルの冷媒を、圧縮機１〜
凝縮器２〜減圧装置３〜蒸発器４〜圧縮機１の順に循壊
させて、矢印イ方向に流れる空気を蒸発器４にて冷却除
湿した後、凝縮器２にて加熱し、その空気を乾燥空気と
して乾燥室内に循環させて被乾燥物の乾燥を行う。また
低中温時において乾燥室内を加熱減湿する場合には、前
記凝縮器２で加熱された空気を前記加熱器５でさらに加
熱して乾燥室内を循環させる。As a conventional dehumidifying dryer of this type, one having the configuration shown in FIGS. 1 and 2 is known. The dehumidifying dryer shown in FIG. 1 includes a refrigeration cycle consisting of a compressor 1, a condenser 2, a pressure reducing device 3, and an evaporator 4, and a heater 5 that uses hot water, steam, electricity, etc. as a heat source. , the condenser 2 is disposed on the upstream side and the heater 5 is disposed on the downstream side with respect to the flow of air to be dehumidified and dried (arrow A). Then, the refrigerant of the refrigeration cycle is transferred to the compressors 1 to 1.
The air is circulated in the order of condenser 2 - pressure reducing device 3 - evaporator 4 - compressor 1, and the air flowing in the direction of arrow A is cooled and dehumidified in evaporator 4, then heated in condenser 2, and the air is The drying air is circulated in the drying chamber to dry the material to be dried. Further, when heating and dehumidifying the interior of the drying chamber at low to medium temperatures, the air heated by the condenser 2 is further heated by the heater 5 and circulated within the drying chamber.
一方、第２図の除湿乾燥機は、圧縮機６、室外側凝縮器
７、室内側凝縮器８、減圧装置９、蒸発器１００機器よ
り構成される冷凍サイクルと、温水、蒸気、電気等を熱
源とする加熱器１１とを備え、除湿乾燥すべき空気の流
れ（矢印イ′）に対して前記室内側凝縮器８を上流側に
、かつ前記加熱器１１を下流側にそれぞれ配設した構成
となっている。そして、冷凍サイクルの冷媒を、圧縮機
６〜室外側凝縮器７〜室内側凝縮器８〜減圧装置９〜蒸
発器１０〜圧縮機６の順に循環させて、矢印イ′方向に
流れる空気を蒸発器１０にて冷却除湿した後、室内側凝
縮器８にて加熱し、その空気を乾燥室内に循環させて被
乾燥物の乾燥を行う。また低中温時において乾燥室内を
加熱減湿する場合には、前記室内側凝縮器８で加熱され
た空気を前記加熱器１１でさらに加熱して乾燥室内に循
環させる。尚、室外側凝縮器７は中高温時の補助凝縮器
として使用される。On the other hand, the dehumidifying dryer shown in FIG. A configuration in which the indoor condenser 8 is disposed on the upstream side and the heater 11 is disposed on the downstream side with respect to the flow of air to be dehumidified and dried (arrow A'). It becomes. Then, the refrigerant in the refrigeration cycle is circulated in the order of compressor 6 - outdoor condenser 7 - indoor condenser 8 - pressure reducing device 9 - evaporator 10 - compressor 6 to evaporate the air flowing in the direction of arrow A'. After being cooled and dehumidified in the container 10, the air is heated in the indoor condenser 8, and the air is circulated inside the drying chamber to dry the material to be dried. When heating and dehumidifying the inside of the drying chamber at low to medium temperatures, the air heated by the indoor condenser 8 is further heated by the heater 11 and circulated inside the drying chamber. Note that the outdoor condenser 7 is used as an auxiliary condenser at medium to high temperatures.
しかるに第１図及び第２図に示した除湿乾燥機は、被乾
燥物の乾燥を行う場合、いずれも空気の冷却除湿、加熱
を行うため、特に低中温時において乾燥室内の相対湿度
が急激に低下してし壕い、被乾燥物が木材である場合に
はひすみや割れ等のくるいが生じたシ、また被乾燥物が
農水産物の場合には異面のみ乾き、かつ内部が未乾燥と
なって日持ちが低下するといった問題があった。また低
中温時において乾燥室内の加熱減湿を行うためには、加
熱器の熱源として温水、蒸気、電気等の別の電源が必要
となり、設備費及び運転経費が嵩む問題があった。However, when drying the material to be dried, the dehumidifying dryers shown in Figures 1 and 2 both cool, dehumidify, and heat the air. If the material to be dried is wood, there may be cracks such as cracks or cracks, or if the material to be dried is agricultural and fishery products, only the different surfaces are dry and the inside is not dried. There was a problem that the shelf life of the product decreased. In addition, in order to heat and dehumidify the drying chamber at low to medium temperatures, a separate power source such as hot water, steam, or electricity is required as a heat source for the heater, which raises the problem of increased equipment and operating costs.
本発明の目的は、前述した従来技術の問題点を解消し、
特に低中温時における乾燥室内の相対湿３一
度の急激低下をなくして、木材等にあってはひずみや割
れ、農水産物にあっては内部未乾燥による日持ちの低下
を防止でき、しかも別の熱源を必要とすることなく低中
温時の加熱減湿を行える除湿乾燥機を提供することにあ
る。The purpose of the present invention is to solve the problems of the prior art described above,
In particular, it eliminates the sudden drop in relative humidity in the drying room at low to medium temperatures, prevents warping and cracking of wood, etc., and prevents the shelf life of agricultural and marine products from decreasing due to internal undrying. To provide a dehumidifying dryer capable of heating and dehumidifying at low to medium temperatures without requiring.
この目的を達成するために、本発明の除湿乾燥機は、圧
縮器、再熱器、四方弁、室内側熱交換器、室外側熱交換
器、第１減圧装置及び第２減圧装置等の機器よ多構成さ
れる冷凍サイクルを備え、除湿乾燥すべき空気の流れに
対して前記室内側熱交換器を上流側に、かつ前記再熱器
を下流側にそれぞれ配設し、乾燥室内を加熱減湿する時
には、前記冷凍サイクルの冷媒を、圧縮機〜再熱器〜四
方弁〜室内側熱交換器〜第１減圧装置〜室外側熱交換器
〜四方弁〜圧縮機の順に循環させて、空気を室内側熱交
換器と再熱器で加熱するようにし、乾燥室内を除湿再熱
する時には、前記四方弁を切換えて冷凍サイクルの冷媒
を、圧縮機〜再熱器〜四方弁〜室外側熱交換器〜第２減
圧装置〜室内側４−
熱交換器〜四方弁〜圧縮機の順に循環させて、空気を室
内側熱交換器で冷却除湿した後、再熱器で加熱するよう
に構成したことを特徴とする。To achieve this objective, the dehumidifying dryer of the present invention includes equipment such as a compressor, a reheater, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a first pressure reducing device, and a second pressure reducing device. The indoor heat exchanger is disposed on the upstream side and the reheater is disposed on the downstream side with respect to the flow of air to be dehumidified and dried. When humid, the refrigerant in the refrigeration cycle is circulated in the order of compressor - reheater - four-way valve - indoor heat exchanger - first pressure reducing device - outdoor heat exchanger - four-way valve - compressor, and When dehumidifying and reheating the inside of the drying chamber, the four-way valve is switched to transfer the refrigerant in the refrigeration cycle from the compressor to the reheater to the four-way valve to the outdoor heat. It was configured so that the air was circulated in the order of exchanger - second pressure reducing device - indoor side 4 - heat exchanger - four-way valve - compressor, and after cooling and dehumidifying the air with the indoor heat exchanger, it was heated with the reheater. It is characterized by
以下、本発明の一実施例を第３図によシ説明する。第３
図は本発明除湿乾燥機の冷凍サイクル系統図を示してい
る。図において、除湿乾燥機は、圧縮機２１、再熱器２
２、四方弁２３、室内側熱交換器２４、室外側熱交換器
２５、第１減圧装置２６、第２減圧装置２７、アキュム
レータ２８等の機器と、これらの接続配管とよ多構成さ
れる冷凍サイクルを備えている。この冷凍サイクルは、
四方弁２３が実線の位置に切換えられると、圧縮機２１
より吐出される冷媒を、実線の矢印で示した如く、再熱
器２２〜四方弁２３〜室内側熱交換器２４〜第１減圧装
置２６〜室外側熱交換器２５〜四方弁２３〜アキユムレ
ータ２８、圧縮機２１の順に循壊させ、また四方弁２３
が点線の位置に切換えられると、圧縮機２１よシの冷媒
を、点線の矢印で示した如く、再熱器２２〜四方弁２３
〜室外側熱交換器２５〜第２減圧装置２７〜室内側熱交
換器２４〜四方弁２３〜アキユムレータ２８〜圧縮機２
１の順に循環させることができる。An embodiment of the present invention will be described below with reference to FIG. Third
The figure shows a refrigeration cycle system diagram of the dehumidifying dryer of the present invention. In the figure, the dehumidifying dryer includes a compressor 21, a reheater 2
2. A refrigeration system consisting of a four-way valve 23, an indoor heat exchanger 24, an outdoor heat exchanger 25, a first pressure reducing device 26, a second pressure reducing device 27, an accumulator 28, and other equipment, and piping connecting these devices. It has a cycle. This refrigeration cycle is
When the four-way valve 23 is switched to the position indicated by the solid line, the compressor 21
As shown by solid arrows, the refrigerant discharged from the reheater 22 to the four-way valve 23 to the indoor heat exchanger 24 to the first pressure reducing device 26 to the outdoor heat exchanger 25 to the four-way valve 23 to the accumulator 28 , compressor 21 in order, and the four-way valve 23
is switched to the position indicated by the dotted line, the refrigerant from the compressor 21 is transferred from the reheater 22 to the four-way valve 23 as indicated by the dotted arrow.
- Outdoor heat exchanger 25 - Second pressure reducing device 27 - Indoor heat exchanger 24 - Four-way valve 23 - Accumulator 28 - Compressor 2
It can be circulated in the order of 1.
また、前記冷凍サイクルにおいて、除湿乾燥すべき空気
の流れ（矢印口）に対して前記室内側熱交換器２４が上
流側に、かつ再熱器２２が下流側にそれぞれ配設されて
いると共に、冷凍サイクルの各機器は同一のキャビネッ
トに内に収納されている。Further, in the refrigeration cycle, the indoor heat exchanger 24 is disposed on the upstream side and the reheater 22 is disposed on the downstream side with respect to the flow of air to be dehumidified and dried (indicated by the arrow), and Each piece of equipment in the refrigeration cycle is housed in the same cabinet.
次に本発明の除湿乾燥機の作用について説明する。乾燥
室内を加熱減湿する場合には、冷凍サイクルの冷媒を、
圧縮機２１〜再熱器２２〜四方弁２３〜室内側熱交換器
２４〜第１減圧装置２６〜室外側熱交換器２５〜四方弁
２３〜アキユムレ一タ２８〜圧縮機２１の順に循環させ
て、矢印口方向に流れる空気を、凝縮器として作用する
室内側熱又換器２４にて加熱すると共に、再熱器２２で
さらに加熱し、その空気を乾燥空気として乾燥室内に循
環させて被乾燥物の乾燥を行う。Next, the operation of the dehumidifying dryer of the present invention will be explained. When heating and dehumidifying the drying room, use the refrigerant in the refrigeration cycle.
It is circulated in the order of compressor 21 - reheater 22 - four-way valve 23 - indoor heat exchanger 24 - first pressure reducing device 26 - outdoor heat exchanger 25 - four-way valve 23 - storage unit 28 - compressor 21. The air flowing in the direction of the arrow is heated by the indoor heat exchanger 24 that acts as a condenser, further heated by the reheater 22, and the air is circulated as dry air into the drying chamber to be dried. Dry things.
また、乾燥室内を除湿再熱する場合には、四方弁２３を
点線位置に切換えて冷凍サイクルの冷媒を、圧縮機２１
〜再熱器２２〜四方弁２３〜室外側熱交換器２５〜第２
減圧装置２７〜室内側熱交換器２４〜四方弁２３〜アキ
ユムレ一タ２８〜圧縮機２１の順に循環させて、矢印口
方向に流れる空気を、蒸発器として作用する室内側熱交
換器２４にて冷却除湿した後、再熱器２２で加熱し、そ
の空気を乾燥室内に循環させて被乾燥物の乾燥を行う。In addition, when dehumidifying and reheating the inside of the drying chamber, the four-way valve 23 is switched to the dotted line position and the refrigerant of the refrigeration cycle is transferred to the compressor 21.
~Reheater 22~Four-way valve 23~Outdoor heat exchanger 25~Second
The air flowing in the direction of the arrow is circulated in the order of the pressure reducing device 27 - the indoor heat exchanger 24 - the four-way valve 23 - the storage unit 28 - the compressor 21 in the indoor heat exchanger 24 which acts as an evaporator. After cooling and dehumidifying, the air is heated in the reheater 22 and circulated in the drying chamber to dry the material to be dried.
前述したように本発明の除湿乾燥機においては、再熱器
２２は常に空気を加熱する加熱器として機能し、室内側
熱交換器２４は空気を加熱する凝縮器または空気を冷却
除湿する蒸発器として機能するものであるから、被乾燥
物の乾燥条件、室内外の温度に応じて前記室内側熱交換
器２４を凝縮器または蒸発器として機能させることによ
り加熱減湿、除湿再熱を行え、特に低中温時における乾
燥室内の相対湿度の急激な低下を防止できる。従って、
被乾燥物が木材である場合にはひずみや割れ等のくるい
を防止でき、また被乾燥物が農水産７−
物の場合には内部が未乾燥となる日持ち低下を防止でき
る。As mentioned above, in the dehumidifying dryer of the present invention, the reheater 22 always functions as a heater that heats the air, and the indoor heat exchanger 24 functions as a condenser that heats the air or an evaporator that cools and dehumidifies the air. Therefore, heating and dehumidification, dehumidification and reheating can be performed by making the indoor heat exchanger 24 function as a condenser or an evaporator depending on the drying conditions of the material to be dried and the indoor and outdoor temperatures. In particular, it is possible to prevent a sudden drop in the relative humidity in the drying chamber at low to medium temperatures. Therefore,
When the material to be dried is wood, distortions such as distortions and cracks can be prevented, and when the material to be dried is agricultural and fishery products, it is possible to prevent the interior from being undried and a decrease in shelf life.
また本発明の除湿乾燥機では、空気を熱源とした冷凍サ
イクルのみで加熱減湿及び除湿再熱を行えるので、従来
技術の如き温水、蒸気、電気等の別熱源を必要とするこ
となく低中温時での加熱減湿を行える。In addition, the dehumidifying dryer of the present invention can perform heating, dehumidifying, dehumidifying and reheating using only the refrigeration cycle that uses air as a heat source, so there is no need for separate heat sources such as hot water, steam, electricity, etc. as in the conventional technology, and low to medium temperature Can be heated and dehumidified at any time.
また、この実施例においては、冷凍サイクルの各機器を
同一のキャビネットに内に収納しであるから、据付は工
事や配管作業の簡略化を図れ、かつ据付は面積を小さく
できると共に、保守点検も容易に行える。In addition, in this embodiment, each piece of equipment in the refrigeration cycle is housed in the same cabinet, which simplifies installation work and piping work, reduces installation area, and facilitates maintenance and inspection. It's easy to do.
尚、図中２９及び３０は冷凍サイクル中に具えられた調
整弁を示し、調整弁２９は低温時の冷凍サイクルの凝縮
圧力が低下するのを防ぐものである。また調整弁３０は
冬期低温時における加熱減湿の際、圧縮機２１のホット
ガスを電磁弁３１を介して蒸発器として機能している室
外側熱交換器２５へ送って該室外側熱交換器２５と圧縮
機２１の容量をバランスさせ圧縮機２１の吸入圧力の低
８−
下を防ぐものである。In the figure, reference numerals 29 and 30 indicate regulating valves provided in the refrigeration cycle, and the regulating valve 29 prevents the condensation pressure of the refrigeration cycle from decreasing at low temperatures. Further, during heating and dehumidification at low temperatures in winter, the regulating valve 30 sends the hot gas from the compressor 21 via the solenoid valve 31 to the outdoor heat exchanger 25 functioning as an evaporator. 25 and the capacity of the compressor 21 to prevent the suction pressure of the compressor 21 from becoming too low.
以上説明したように、本発明によれば、特に低中温時に
おける乾燥室内の相対湿度の急激低下をなくせるので、
木材等にあってはひずみや割れ、農水産物にあっては内
部未乾燥による日持ち低下を低下でき、しかも別の熱源
を必要とすることなく低中温時の加熱減湿を行える。As explained above, according to the present invention, it is possible to eliminate a sudden drop in relative humidity in the drying chamber, especially at low to medium temperatures.
It can reduce the deterioration of shelf life due to distortions and cracks in wood, etc., and due to internal undrying in agricultural and marine products, and can perform heating and dehumidification at low to medium temperatures without requiring a separate heat source.
第１図及び第２図は従来の除湿乾燥機の冷凍サイクル系
統図、第３図は本発明除湿乾燥機の一実施例を示す冷凍
サイクル系統図である。
２１・・・圧縮機 ２２・・・再熱器 ２３・・・
四方弁 ２４・・・室内側熱交換器 ２５・・・室
外側熱交換器 ２６・・・第１減圧装置 ２７・・
・第２減圧装置 Ｋ・・・キャビネソト1 and 2 are refrigeration cycle system diagrams of a conventional dehumidifying dryer, and FIG. 3 is a refrigeration cycle system diagram showing an embodiment of the dehumidifying dryer of the present invention. 21... Compressor 22... Reheater 23...
Four-way valve 24... Indoor heat exchanger 25... Outdoor heat exchanger 26... First pressure reducing device 27...
・Second pressure reducing device K...Cabinet soto
Claims (1)
熱又換器、第１減圧装置及び第２減圧装置等の機器よシ
構成される冷凍サイクルを備え、除湿乾燥すべき空気の
流れに対して前記室内側熱交換器を上流側に、かつ前記
再熱器を下流側にそれぞれ配設し、乾燥室内を加熱減湿
する時には、前記冷凍サイクルの冷媒を、圧縮機〜再熱
器〜四方弁〜室内側熱交換器〜第１減圧装置〜室外熱交
挨器〜四方弁〜圧縮機の順に循環させて、空気を室内側
熱交換器と再熱器で加熱するようにし、乾燥室内を除湿
再熱する時には、前記四方弁を切換えて冷凍サイクルの
冷媒を、圧縮機〜再熱器〜四方弁〜室外側熱交換器〜第
２減圧装置〜室内側熱交換器〜四方弁〜圧縮機の順に循
環させて、空気を室内側熱交換器で冷却除湿した後、再
熱器で加熱するように構成したことを特徴とする除湿乾
燥機。 ２、前記冷凍サイクルを構成する各機器が、同一のキャ
ビネット内に収納されていることを特徴とする特許請求
の範囲第１項記載の除湿乾燥機。[Claims] 1. A refrigeration cycle consisting of equipment such as a compressor, a reheater, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a first pressure reduction device, and a second pressure reduction device. The indoor heat exchanger is disposed on the upstream side and the reheater is disposed on the downstream side with respect to the flow of air to be dehumidified and dried, and when heating and dehumidifying the inside of the drying chamber, the refrigeration cycle The refrigerant is circulated in the order of compressor - reheater - four-way valve - indoor heat exchanger - first pressure reducing device - outdoor heat exchanger - four-way valve - compressor, and the air is circulated between the indoor heat exchanger and the compressor. When heating is performed using a reheater and the inside of the drying chamber is dehumidified and reheated, the four-way valve is switched to transfer the refrigerant in the refrigeration cycle from the compressor to the reheater to the four-way valve to the outdoor heat exchanger to the second pressure reducing device. A dehumidifying dryer characterized in that the air is circulated in the order of an indoor heat exchanger, a four-way valve, and a compressor so that air is cooled and dehumidified by the indoor heat exchanger and then heated by a reheater. 2. The dehumidifying dryer according to claim 1, wherein each device constituting the refrigeration cycle is housed in the same cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4871683A JPS59176548A (en) | 1983-03-25 | 1983-03-25 | Dehumidifying drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4871683A JPS59176548A (en) | 1983-03-25 | 1983-03-25 | Dehumidifying drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59176548A true JPS59176548A (en) | 1984-10-05 |
Family
ID=12811021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4871683A Pending JPS59176548A (en) | 1983-03-25 | 1983-03-25 | Dehumidifying drier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59176548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6193757U (en) * | 1984-11-22 | 1986-06-17 | ||
| JPH01269885A (en) * | 1988-04-21 | 1989-10-27 | Matsushita Electric Ind Co Ltd | Heat pump type dehumidifying and drying device |
-
1983
- 1983-03-25 JP JP4871683A patent/JPS59176548A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6193757U (en) * | 1984-11-22 | 1986-06-17 | ||
| JPH0431498Y2 (en) * | 1984-11-22 | 1992-07-29 | ||
| JPH01269885A (en) * | 1988-04-21 | 1989-10-27 | Matsushita Electric Ind Co Ltd | Heat pump type dehumidifying and drying device |
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