JPH07293972A - Environmental apparatus with rotation control type dehumidifier - Google Patents
Environmental apparatus with rotation control type dehumidifierInfo
- Publication number
- JPH07293972A JPH07293972A JP6107896A JP10789694A JPH07293972A JP H07293972 A JPH07293972 A JP H07293972A JP 6107896 A JP6107896 A JP 6107896A JP 10789694 A JP10789694 A JP 10789694A JP H07293972 A JPH07293972 A JP H07293972A
- Authority
- JP
- Japan
- Prior art keywords
- humidity
- rotor
- dehumidifier
- temperature
- control
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-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
- F24F3/12—Air-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
- F24F3/14—Air-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
- F24F3/1411—Air-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
- F24F3/1423—Air-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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1004—Bearings or driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1068—Rotary wheel comprising one rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1084—Rotary wheel comprising two flow rotor segments
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Central Air Conditioning (AREA)
- Air Conditioning Control Device (AREA)
- Drying Of Gases (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、環境室内に被試験物、
被処理物等を入れ、少なくとも環境室内の湿度を維持又
は変化させて目的とする環境条件を作る環境試験装置、
恒温・恒湿装置、熱処理装置等の環境装置に関する。BACKGROUND OF THE INVENTION The present invention relates to an object to be tested in an environmental chamber,
An environmental testing device that puts in the objects to be treated and maintains or changes the humidity in the environment room at least to create the desired environmental conditions,
The present invention relates to environmental devices such as constant temperature / humidity devices and heat treatment devices.
【0002】[0002]
【従来の技術】例えば、試験室内の温湿度を所定値に維
持するようにした従来の環境試験装置としては、試験室
内の空気の一部分を除湿機に導入して除湿した後空調室
に戻すバイパス除湿系を設けると共に、空調室内に加湿
器を設け、加湿器の加湿量を制御することにより、除湿
空気と加湿空気との混合空気を適当な湿度のものにして
試験室に供給し、試験室内の湿度を目的とする湿度に維
持するようにした形式のものがある。この場合、除湿機
の除湿能力は、被試験物から発生したり換気により導入
される水蒸気や微小水滴(以下「水分」という)から成
る水分負荷と、試験室の温湿度条件とを考慮して定めら
れていた。即ち、水分負荷が大きく、且つ、試験室内を
低い温湿度に維持するときを基準として除湿機の最大除
湿能力が定められていた。その結果、従来の環境試験装
置では、試験室の設定湿度が比較的高く、又発生する水
分負荷が少ないようなときには、除湿機の除湿能力が過
大になり、そのために加湿器による再加湿量が多くな
り、加湿のために無駄なエネルギーを消費していた。2. Description of the Related Art For example, as a conventional environmental test apparatus for maintaining the temperature and humidity in a test chamber at a predetermined value, a bypass for returning a part of the air in the test chamber to a dehumidifier to dehumidify it and then returning it to an air-conditioned room By providing a dehumidifying system and a humidifier in the air-conditioned room and controlling the amount of humidification in the humidifier, the mixed air of dehumidified air and humidified air is supplied to the test room with an appropriate humidity. There is a type that keeps the humidity of the target humidity. In this case, the dehumidifying capacity of the dehumidifier should be determined by considering the moisture load of water vapor and minute water droplets (hereinafter referred to as "moisture") generated from the DUT or introduced by ventilation and the temperature and humidity conditions of the test room. It was set. That is, the maximum dehumidifying capacity of the dehumidifier has been set on the basis of the time when the moisture load is large and the temperature and humidity inside the test chamber are kept low. As a result, in the conventional environmental test equipment, when the humidity set in the test room is relatively high and the generated water load is small, the dehumidifying capacity of the dehumidifier becomes excessive, and therefore the rehumidification amount by the humidifier is increased. It increased and wasted energy for humidification.
【0003】一方、このような再加湿量の増大を抑制す
るため、除湿機の再生ヒータの出力を切り換えたり、循
環風量を切り換える方法が用いられることもある。しか
しながら、このような方法を用いても、除湿能力は10
0%から60%程度までしか低下しないので、十分な省
エネ運転ができなかった。又、除湿機は吸入空気中の水
分負荷が多いほど除湿能力が大きくなる特性を有するた
め、特に大型の環境試験装置では再加湿量が多くなり、
多大なエネルギーロスが発生していた。更に、除湿機へ
の循環風量を切り換える方法では、除湿機内の風量バラ
ンスが変わるため、除湿機内でダンパによる開度調整が
必要になり、除湿機が複雑且つコスト高になっていた。On the other hand, in order to suppress such an increase in the re-humidification amount, a method of switching the output of the regenerative heater of the dehumidifier or switching the circulating air amount may be used. However, even if such a method is used, the dehumidifying capacity is 10
Since it decreased only from 0% to about 60%, sufficient energy saving operation could not be performed. Further, since the dehumidifier has a characteristic that the dehumidifying capacity increases as the moisture load in the intake air increases, the rehumidification amount increases, especially in a large environmental test device.
A great deal of energy was lost. Further, in the method of switching the circulating air volume to the dehumidifier, the air volume balance in the dehumidifier changes, so it is necessary to adjust the opening degree by a damper in the dehumidifier, which makes the dehumidifier complicated and costly.
【0004】なお除湿機単体としては、ロータ回転速度
の上昇に対応して再生空気量を増加してロータの再生ゾ
ーンの再生能力を回転速度に追従させると共に、再生直
後にパージゾーンを設けて処理ゾーンの温度を低下させ
るという対策の下に、入口除湿空気の絶対湿度に対応し
てこれが大きくなるとロータ回転速度を速くして除湿能
力を増加させ、入口除湿空気の絶対湿度が大きくなって
も除湿効率を余り低下させることなく維持できるように
した装置が提案されている(特開平3ー38214号公
報参照)。As the dehumidifier alone, the amount of regenerated air is increased in response to an increase in the rotor rotation speed to make the regeneration capacity of the rotor's regeneration zone follow the rotation speed, and a purge zone is provided immediately after regeneration to process the dehumidifier. If the absolute humidity of the inlet dehumidified air becomes large, the rotor rotation speed will be increased to increase the dehumidification capacity, and the dehumidification will be performed even if the absolute humidity of the inlet dehumidified air becomes large. There has been proposed a device capable of maintaining efficiency without being significantly reduced (see Japanese Patent Laid-Open No. 3-38214).
【0005】[0005]
【発明が解決しようとする課題】本発明は従来技術に於
ける上記問題を解決し、除湿機を含む湿度制御において
省エネルギー化の図られた環境装置を提供することを課
題とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems in the prior art and to provide an environmental device that saves energy in humidity control including a dehumidifier.
【0006】[0006]
【課題を解決するための手段】本発明は上記課題を解決
するために、ロータが回転し1回転中に除湿域及び再生
域を持つ除湿機の前記除湿域に環境室内の気体を導入し
て除湿した後空調室に戻す除湿系と加湿器とを備え前記
加湿器の加湿量を制御することにより前記環境室の湿度
条件を制御する環境装置において、前記加湿量を制御す
る制御要素に対応して前記ロータの回転速度を制御する
ロータ制御手段を設けたことを特徴とする。In order to solve the above-mentioned problems, the present invention introduces a gas in an environmental chamber into the dehumidifying area of a dehumidifier having a dehumidifying area and a regenerating area during one rotation of a rotor. In an environmental device that controls the humidity condition of the environmental chamber by controlling the humidification amount of the humidifier, which comprises a dehumidification system and a humidifier that are returned to the air-conditioned room after dehumidification, and corresponds to the control element that controls the humidification amount. Rotor control means for controlling the rotation speed of the rotor is provided.
【0007】[0007]
【作用】本発明の環境装置の除湿機は、ロータの回転に
より、1回転中に除湿域及び再生域を形成する。このよ
うな除湿機では、ロータの回転速度が遅いときには、再
生域でロータの除湿部は十分再生されるが、除湿域で処
理気体の処理量が過大になるため、除湿域の後流側では
除湿能力が大きく落ち込み、全体としての除湿能力が低
くなる。一方、ロータの回転速度が速い場合には、再生
空気量を増加したりパージゾーンを設けるような場合は
別として、通常の除湿機では、再生域での再生不足と除
湿域での温度降下不足とにより、除湿能力が低下する。
従って、除湿機は、処理能力が最大になるロータの回転
速度(以下「最適速度」という)を有する。そして、最
適速度より低速又は高速側では、回転速度の減少又は増
加に対応して除湿能力が低下する。その結果、このよう
な回転速度と除湿能力との関係を環境装置の湿度制御に
利用でき、本発明では除湿機のこのような特性を利用す
る。The dehumidifier of the environmental device of the present invention forms the dehumidifying area and the regenerating area during one rotation by the rotation of the rotor. In such a dehumidifier, when the rotation speed of the rotor is slow, the dehumidifying portion of the rotor is sufficiently regenerated in the regeneration region, but the amount of treated gas to be processed becomes excessive in the dehumidifying region, and therefore, in the downstream side of the dehumidifying region. The dehumidifying ability is greatly reduced, and the dehumidifying ability as a whole is low. On the other hand, when the rotation speed of the rotor is fast, except for the case where the amount of regenerated air is increased or a purge zone is provided, a normal dehumidifier has insufficient regeneration in the regeneration region and insufficient temperature drop in the dehumidification region. Deteriorates the dehumidifying ability.
Therefore, the dehumidifier has a rotation speed of the rotor (hereinafter referred to as "optimum speed") that maximizes the processing capacity. Then, on the lower speed side or the higher speed side than the optimum speed, the dehumidifying ability decreases corresponding to the decrease or increase of the rotation speed. As a result, such a relationship between the rotation speed and the dehumidifying capacity can be utilized for the humidity control of the environmental device, and the present invention utilizes such characteristics of the dehumidifier.
【0008】環境装置は、又、このような除湿機の除湿
域に環境室内の気体を導入して除湿した後空調室に戻す
除湿系と加湿器とを備え、加湿器の加湿量を制御するこ
とにより環境室の湿度条件を制御する。即ち、この制御
では、目標とする環境室の湿度条件よりも低湿度になる
まで除湿機で除湿し、湿度不足分を加湿器による加湿で
補い、その加湿量を制御することにより環境室内を設定
湿度に制御する。The environmental device also includes a dehumidifying system and a humidifier that introduce gas in the environmental chamber into the dehumidifying area of the dehumidifier to dehumidify the gas and then return it to the air conditioning chamber, and control the humidifying amount of the humidifier. This controls the humidity conditions in the environmental room. That is, in this control, dehumidification is performed with a dehumidifier until the humidity is lower than the target humidity condition of the environment room, the insufficient humidity is supplemented with a humidifier, and the humidity amount is controlled to set the environment room. Control to humidity.
【0009】環境装置は、更に、加湿量を制御する制御
要素に対応して除湿機のロータの回転速度を制御するロ
ータ制御手段を有する。ここで、加湿量を制御する制御
要素としては、例えば、目標として設定する環境室の温
度と相対湿度(以下「湿度」というときは相対湿度を意
味する)、湿度の設定値と測定値との偏差、加湿器の加
湿量を制御する最終の制御信号である加湿出力、加湿出
力の目標値等がある。The environmental device further has a rotor control means for controlling the rotation speed of the rotor of the dehumidifier corresponding to the control element for controlling the humidification amount. Here, as the control element for controlling the amount of humidification, for example, the temperature and relative humidity of the environment room to be set as a target (hereinafter, "humidity" means relative humidity), the set value of humidity and the measured value There are deviation, a humidification output which is a final control signal for controlling the humidification amount of the humidifier, a target value of the humidification output, and the like.
【0010】例えば環境室の設定温度及び湿度が何れも
低いときには、加湿器の加湿量を小さくする必要がある
ので、この設定温湿度は加湿量を制御する制御要素の1
つである。そして、このように設定温湿度が共に低いと
きには、除湿機により被除湿気体中の水分を多く除去す
る必要があるので、除湿機の除湿能力を大きくしなけれ
ばならない。ロータ制御手段は、制御要素であり且つ除
湿能力とこのような関係を有する環境室の設定温湿度に
より、これに対応してロータの回転速度を制御する。For example, when the set temperature and humidity of the environment room are both low, it is necessary to reduce the humidification amount of the humidifier, so this set temperature and humidity is one of the control elements for controlling the humidification amount.
Is one. When both the set temperature and humidity are low, it is necessary to remove a large amount of water in the dehumidified body by the dehumidifier, so that the dehumidifying ability of the dehumidifier must be increased. The rotor control means is a control element and controls the rotation speed of the rotor corresponding to the set temperature and humidity of the environment chamber which has such a relationship with the dehumidifying ability.
【0011】この回転速度としては、例えば、最適速度
及びそれより速い速度を選択することができる。その結
果、設定温湿度が低い場合には、これに対応して低い速
度である最適速度に近い速度を選択すれば、除湿機が最
大に近い除湿能力を発揮するので、設定温湿度を維持で
きると共に、設定湿度が低いため加湿器の加湿量は少な
い。設定温湿度を高くするときには、これに対応してロ
ータの回転速度を速くする。設定温湿度が高いときに
は、必要な除湿量は少なくなり、又、ロータの回転速度
が速いときには、除湿能力は低下する。従って、必要な
除湿量と除湿機の除湿能力とがバランスし、除湿過剰に
なることが防止される。その結果、加湿器による再加湿
量が多くならず、無駄な加湿エネルギーの増加が防止さ
れる。As the rotation speed, for example, an optimum speed or a speed higher than the optimum speed can be selected. As a result, when the set temperature / humidity is low, if the speed close to the optimum speed corresponding to this is selected, the dehumidifier exerts the dehumidifying capacity close to the maximum, so that the set temperature / humidity can be maintained. At the same time, since the set humidity is low, the humidifying amount of the humidifier is small. When increasing the set temperature and humidity, the rotation speed of the rotor is correspondingly increased. When the set temperature and humidity are high, the required amount of dehumidification is small, and when the rotation speed of the rotor is high, the dehumidification capacity is low. Therefore, the required dehumidifying amount and the dehumidifying ability of the dehumidifier are balanced, and excessive dehumidification is prevented. As a result, the amount of re-humidification by the humidifier does not increase, and it is possible to prevent unnecessary increase of humidification energy.
【0012】湿度の設定値と測定値との偏差等の他の加
湿量制御要素を選択した場合も同様となる。以上の如
く、本発明の環境装置では、加湿器の制御と共に、ロー
タ制御手段を設け、除湿機の通常の回転速度に対する除
湿能力特性を利用して除湿能力を制御するので、加湿エ
ネルギーを適正範囲内にすることが可能になる。The same applies when another humidification amount control element such as the deviation between the set value of humidity and the measured value is selected. As described above, in the environmental device of the present invention, in addition to controlling the humidifier, the rotor control means is provided, and the dehumidifying ability is controlled by utilizing the dehumidifying ability characteristic with respect to the normal rotation speed of the dehumidifier. It is possible to stay within.
【0013】[0013]
【実施例】図1は、環境装置の一例である環境試験装置
の温湿度制御系を含めた全体構成を示す。環境試験装置
は、環境室としての試験室1と空調室2とを備え、空調
室2には、両室間で空気を循環させる送風機3と、加熱
ヒータ4と、冷凍機5aから冷媒が送られる蒸発器5
と、加湿器6とが設けられ、試験室1の入口部には、温
度センサ7及び湿度センサ8が設けられ、そして両室の
間には、仕切板9及び風向ガイド10が設けられる。試
験室1内の空気の一部分は、ダンパ11を介して除湿機
12に導入され、除湿された空気はダンパ13を介して
空調室2内に戻され、除湿系が形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an overall configuration including a temperature / humidity control system of an environmental testing device which is an example of an environmental device. The environment test apparatus includes a test room 1 as an environment room and an air-conditioning room 2, and the air-conditioning room 2 has a blower 3 that circulates air between the two rooms, a heater 4, and a refrigerator 5a to send a refrigerant. Evaporator 5
And a humidifier 6, a temperature sensor 7 and a humidity sensor 8 are provided at the entrance of the test chamber 1, and a partition plate 9 and a wind direction guide 10 are provided between the chambers. Part of the air in the test chamber 1 is introduced into the dehumidifier 12 via the damper 11, and the dehumidified air is returned to the inside of the air conditioning chamber 2 via the damper 13 to form a dehumidification system.
【0014】このような環境試験装置では、低温環境を
実現するために循環空気を冷凍機5aの蒸発器5によっ
て冷却しているので、蒸発器5を通過して冷却される空
気は通常露点以下の温度になるため、循環空気は蒸発器
5によっても除湿される。従って、このような装置で
は、除湿機12は、試験室1内を或る限度以内の温湿度
条件に保持したり、試験室内で発生するか又は試験室内
に持ち込まれる水分負荷が多い場合等に対する補助的な
除湿装置として設けられている。但し、蒸発器5等の冷
却装置によっては循環空気を除湿しないような環境装置
に対しても、本発明を適用できることは勿論である。In such an environment testing apparatus, since the circulating air is cooled by the evaporator 5 of the refrigerator 5a in order to realize a low temperature environment, the air cooled by passing through the evaporator 5 is usually below the dew point. Since the temperature becomes, the circulating air is also dehumidified by the evaporator 5. Therefore, in such a device, the dehumidifier 12 is used to keep the temperature inside the test chamber 1 at a temperature and humidity condition within a certain limit, or to generate a large amount of water in the test chamber or bring it into the test chamber. It is provided as an auxiliary dehumidifier. However, it goes without saying that the present invention can be applied to an environmental device that does not dehumidify the circulating air depending on the cooling device such as the evaporator 5.
【0015】温度及び湿度センサ7、8の検出信号は環
境試験装置の温湿度調節器14に導入され、これから加
熱ヒータ4及び加湿器6の加熱量及び加湿量を制御する
制御信号である加熱出力及び加湿出力がそれぞれの制御
部4a、6aに発信され、加熱ヒータ4及び加湿器ヒー
タ6bへ与えられる電力が制御される。そして試験室1
へ送られる空気の温湿度が制御される。加湿出力として
は、例えば、温湿度調節器14において、湿度センサ8
の測定値と温湿度調節器14で設定した設定湿度との偏
差を算出し、その値に対応して一定時間毎に0〜100
%の出力を発信する。温湿度調節器14の制御出力は、
又、除湿機12のロータ121を駆動するロータ駆動モ
ータ122の回転速度を制御するための回転数コントロ
ーラ15にも発信される。The detection signals of the temperature and humidity sensors 7 and 8 are introduced into the temperature / humidity controller 14 of the environmental testing device, and the heating output which is a control signal for controlling the heating amount and the humidifying amount of the heater 4 and the humidifier 6 from this. And the humidification output are transmitted to the respective control units 4a and 6a, and the electric power applied to the heating heater 4 and the humidifier heater 6b is controlled. And test room 1
The temperature and humidity of the air sent to is controlled. As the humidification output, for example, in the temperature / humidity controller 14, the humidity sensor 8
The deviation between the measured value of and the set humidity set by the temperature / humidity controller 14 is calculated, and 0-100 at a constant time corresponding to the calculated value.
Send% output. The control output of the temperature / humidity controller 14 is
It is also transmitted to the rotation speed controller 15 for controlling the rotation speed of the rotor drive motor 122 that drives the rotor 121 of the dehumidifier 12.
【0016】図2は除湿機12の概略構成を示す。除湿
機12は、ロータ121が回転することにより、1回転
中に略3/4回転分の除湿域121a及び略1/4回転
分の再生域121bを持ち、図1にも示す如く、試験室
1内の被除湿空気は除湿域121aで除湿される。再生
域121bには、図示しないヒータで加熱された図1の
矢印Aで示すように再生用空気が通され、ロータ121
の除湿域を通過した部分が再生域121bに入ると、そ
の除湿機能が再生される。ロータ121は、図1でも示
したように、加湿器6の加湿量を制御する制御要素に対
応してロータ121の回転速度を制御するロータ制御手
段としての回転数コントローラ15により回転制御され
る。加湿量を制御する制御要素は、図1でも示す温湿度
調節器14から発信される。FIG. 2 shows a schematic structure of the dehumidifier 12. As the rotor 121 rotates, the dehumidifier 12 has a dehumidifying area 121a for about 3/4 rotation and a regenerating area 121b for about 1/4 rotation in one rotation, and as shown in FIG. The dehumidified air in 1 is dehumidified in the dehumidifying area 121a. Regenerating air heated by a heater (not shown) as shown by an arrow A in FIG.
When the portion that has passed through the dehumidifying area enters the regenerating area 121b, the dehumidifying function is regenerated. As shown in FIG. 1, the rotor 121 is rotation-controlled by a rotation speed controller 15 as a rotor control unit that controls the rotation speed of the rotor 121 in accordance with a control element that controls the humidification amount of the humidifier 6. The control element for controlling the amount of humidification is transmitted from the temperature / humidity controller 14 shown in FIG.
【0017】図3は、除湿機12の除湿特性の一例を示
す。除湿機12の除湿能力は、図示の如くロータ121
の回転速度に変化し、比較的低回転数に近い部分で極大
になり、回転数が大きくなるに従って低下する傾向にな
る。なお、除湿能力は除湿機入口の被除湿空気の水分含
有量によって異なり、図示の如く、水分含有量が多くな
れば除湿能力が大きくなる。FIG. 3 shows an example of dehumidification characteristics of the dehumidifier 12. The dehumidifying capacity of the dehumidifier 12 is as shown in the figure.
Changes to a maximum rotation speed at a portion near a relatively low rotation speed, and tends to decrease as the rotation speed increases. The dehumidifying capacity depends on the water content of the dehumidified air at the inlet of the dehumidifier, and as shown in the figure, the dehumidifying capacity increases as the water content increases.
【0018】図4乃至図8は、加湿量を制御する制御要
素に対応してロータ121の回転数を制御する場合の制
御例を示す。図4は、制御要素を試験室1内の温湿度の
設定値とし、段階的にロータの回転数制御を行う例を示
す。この制御では、温湿度調節器14で設定した温湿度
信号を回転数コントローラ15に発信し(図1、2参
照)、コントローラ15は、その信号に基づいて、予め
4段階に区分された回転数のうちの何れかを選定し、ロ
ータ駆動モータ122がその回転数で回転するように制
御する。4段階の回転数は、例えば100%から25%
まで順次除湿能力が低下するように順次高い回転数にな
っている。温湿度の最も高い第4回転数以上の領域で
は、蒸発器5によって循環空気を冷却することに伴う除
湿効果のみによって必要とされる除湿量が得られるの
で、除湿機12を運転する必要がない。従って、ロータ
12を停止させて除湿機をオフにし、その除湿能力を0
にする。FIGS. 4 to 8 show control examples in the case of controlling the rotation speed of the rotor 121 corresponding to the control element for controlling the humidification amount. FIG. 4 shows an example in which the control elements are set values of temperature and humidity in the test chamber 1 and the rotational speed control of the rotor is performed stepwise. In this control, the temperature / humidity signal set by the temperature / humidity controller 14 is transmitted to the rotation speed controller 15 (see FIGS. 1 and 2), and the controller 15 preliminarily divides the rotation speed into four stages based on the signal. Any one of them is selected, and the rotor drive motor 122 is controlled to rotate at the rotation speed. The number of rotations in four stages is, for example, 100% to 25%
Until the dehumidifying capacity gradually decreases, the number of rotations becomes higher. In the region where the temperature and humidity are the highest and the fourth rotational speed or higher, the dehumidifying amount required only by the dehumidifying effect of cooling the circulating air by the evaporator 5 can be obtained, so that it is not necessary to operate the dehumidifier 12. . Therefore, the rotor 12 is stopped, the dehumidifier is turned off, and its dehumidification capacity is set to 0.
To
【0019】試験室1を低温、低湿にする場合には、水
分負荷の除去量が多くなり、従って大きな除湿能力が要
求される。この場合には、高い除湿能力になるように低
い回転数が選ばれ、少し過剰除湿になるように除湿系の
空気が十分除湿される。加湿器6は、通常の制御と同様
に、少ない再加湿量になるように制御される。そして、
目的とする試験室1内の温湿度が維持される。When the test chamber 1 is set to a low temperature and a low humidity, the amount of water load removed increases, and therefore a large dehumidifying capacity is required. In this case, a low rotation speed is selected so that the dehumidifying capacity is high, and the dehumidifying system air is sufficiently dehumidified so that the dehumidification is slightly excessive. The humidifier 6 is controlled so that the rehumidification amount is small, as in the normal control. And
The target temperature and humidity in the test chamber 1 are maintained.
【0020】一方、試験室内を高温、高湿にする場合に
は、必要除湿量は少なくなる。この場合には、低い除湿
能力になる大きい回転数を選定し、少しだけ過剰除湿に
なるように除湿系の空気を少なめに除湿し、上記と同様
に加湿器による再加湿によって目的とする試験室1内の
温湿度を維持する。従って、従来のように多量に除湿し
ないので、多量の再加湿に伴う加湿エネルギーの浪費が
防止される。On the other hand, when the temperature and humidity inside the test chamber are high, the required dehumidification amount is small. In this case, select a large number of rotations that provides low dehumidification capacity, dehumidify the dehumidification system air to a small extent so that it will be slightly dehumidified, and re-humidify it with the humidifier as in the above. Maintain the temperature and humidity within 1. Therefore, since a large amount of dehumidification as in the conventional case is not performed, waste of humidifying energy due to a large amount of rehumidification is prevented.
【0021】本実施例の如く設定温湿度によりロータ1
2の回転数を制御し、除湿能力を変動させれば、必要な
除湿量を確保できると共に、除湿過剰による無駄な加湿
エネルギーの損失が防止される。又、このように加湿制
御要素としての設定温湿度を用いると、温湿度調節器1
4での設定信号をそのまま利用できるので、簡易にロー
タの回転速度制御を行うことができる。As in this embodiment, the rotor 1 is set according to the set temperature and humidity.
By controlling the number of rotations of 2 and changing the dehumidifying capacity, it is possible to secure a necessary dehumidifying amount and prevent loss of useless humidifying energy due to excessive dehumidification. In addition, when the set temperature and humidity as the humidification control element is used in this way, the temperature and humidity controller 1
Since the setting signal in 4 can be used as it is, the rotation speed of the rotor can be easily controlled.
【0022】図5は、制御要素として湿度の測定値SV
と設定値PVとの差即ち偏差を用いる場合の例を示す。
この偏差によるロータの制御では、偏差の+−のしきい
値をそれぞれA、Bとし、偏差がこの範囲内になるよう
にロータ121の回転数を制御する。FIG. 5 shows a humidity measurement value SV as a control element.
An example of using the difference between the set value PV and the set value PV, that is, the deviation is shown.
In controlling the rotor based on this deviation, the + -threshold values of the deviation are set to A and B, respectively, and the rotational speed of the rotor 121 is controlled so that the deviation falls within this range.
【0023】まず設定温湿度条件等から除湿機12の運
転が必要かどうかを判断し(S−1)、図1に示す冷凍
機の蒸発器5のみで十分除湿できる運転条件が選定され
ていているときには、ロータ121の回転を停止する
(S−2)。除湿機12で除湿運転するときには、ロー
タ制御を開始し(S−3)、タイマリセットにより(S
−4)偏差pv−svをしきい値Aと比較し(S−
5)、偏差がしきい値より大きければ、湿度の設定値よ
り実測値が大きくなっていて除湿能力を上げる必要があ
ると判断し、ロータ121の最大能力回転数である最低
回転数になっていなければその回転数を1段階下げる
(S−6、7)。一方このときには、偏差が+であるた
め加湿出力も低下するので、除湿能力を上げても無駄な
加湿エネルギーが増加することはない。First, it is judged from the set temperature and humidity conditions whether the dehumidifier 12 needs to be operated or not (S-1), and the operating conditions such that only the evaporator 5 of the refrigerator shown in FIG. 1 can sufficiently dehumidify are selected. If so, the rotation of the rotor 121 is stopped (S-2). When performing the dehumidifying operation by the dehumidifier 12, the rotor control is started (S-3) and the timer is reset (S).
-4) Compare the deviation pv-sv with the threshold A (S-
5) If the deviation is larger than the threshold value, it is determined that the actual measurement value is larger than the set value of the humidity and it is necessary to increase the dehumidification capacity, and it is the minimum rotation speed that is the maximum rotation speed of the rotor 121. If not, the number of rotations is lowered by one step (S-6, 7). On the other hand, at this time, since the deviation is +, the humidification output also decreases, so that even if the dehumidification capacity is increased, useless humidification energy does not increase.
【0024】偏差pv−svがしきい値A以下であれ
ば、−のしきい値Bと比較し(S−8)、偏差がB以下
であれば、湿度の設定値より実測値が小さくなっていて
除湿能力を下げる必要があると判断し、ロータ121が
最低能力回転数である最大回転数になっていなければそ
の回転数を1段階上げる(S−9、10)。このときに
は、偏差が−であるため加湿出力は増加するが、これは
必要な加湿量を得るためであり、ロータの回転数増によ
って除湿能力が低下した分だけ加湿エネルギーの節約が
図られる。If the deviation pv-sv is less than the threshold value A, it is compared with the negative threshold value B (S-8). If the deviation is less than B, the measured value is smaller than the set value of humidity. Therefore, it is determined that the dehumidifying capacity needs to be reduced, and if the rotor 121 does not reach the maximum rotational speed that is the minimum rotational speed, the rotational speed is increased by one step (S-9, 10). At this time, since the deviation is negative, the humidification output is increased, but this is to obtain the necessary amount of humidification, and the humidification energy is saved by the amount by which the dehumidification capacity is decreased due to the increase in the rotation speed of the rotor.
【0025】偏差がしきい値AB間にあれば、試験室1
内の湿度は目標値の近くで安定しているので、ロータの
回転数は変更されず現状維持される。このような一連の
判断及び制御をした後、制御周期がタイムアップしたか
どうかを判断し(S−11)、タイムアップすればタイ
マをリセットして再び(S−4)以下のフローを実行す
る。なお、ロータが既に最大又は最少回転数になってい
てそれ以上又はそれ以下の回転数にできないときには、
回転数は変更されない。If the deviation is between the threshold values AB, the test room 1
Since the humidity inside is stable near the target value, the rotation speed of the rotor is not changed and is maintained as it is. After performing such a series of judgment and control, it is judged whether or not the control cycle has timed out (S-11), and if the time has expired, the timer is reset and the following flow is executed again (S-4). . In addition, when the rotor has already reached the maximum or minimum number of revolutions and it cannot be made higher or lower than that,
The number of rotations does not change.
【0026】このような測定値と設定値との偏差は、温
湿度調節器14において、加湿器の制御出力を発生させ
るために演算されているので、その結果を直接利用し、
簡易にロータの回転数制御を行うことができる。又、こ
の制御によれば、ロータの回転数と加湿出力とが同じ目
的の方向に同時期に動くので、試験室1内の湿度状態に
即応して速く偏差を修正することができる。Since the deviation between the measured value and the set value is calculated in the temperature / humidity controller 14 to generate the control output of the humidifier, the result is directly used,
The rotation speed of the rotor can be easily controlled. Further, according to this control, the rotational speed of the rotor and the humidification output move in the same target direction and at the same time, so that the deviation can be corrected quickly in accordance with the humidity condition in the test chamber 1.
【0027】図6は、制御要素として加湿器6の加湿量
に対応する加湿出力自体を用いる場合の例を示す。この
例でも、図5と同様の制御が行われる。従って、同様の
判断及び操作部分については説明を省略する。この加湿
出力によるロータの制御では、加湿出力の下限及び上限
のしきい値をそれぞれC、Dとし、加湿出力がこの範囲
内になるようにロータ121の回転数を制御する。加湿
出力を下限しきい値Cと比較し(S−5)、これがしき
い値C以下であれば、試験室1内は湿度が高く加湿不要
な状態になっていて除湿能力を上げる必要があると判断
し、ロータ121の回転数を1段階下げる(S−6、
7)。その結果除湿量が増加しても、加湿出力が低下し
ているので、無駄な加湿エネルギーが増加することはな
い。FIG. 6 shows an example in which the humidification output itself corresponding to the humidification amount of the humidifier 6 is used as the control element. Also in this example, the same control as in FIG. 5 is performed. Therefore, description of similar judgment and operation parts will be omitted. In controlling the rotor by the humidification output, the lower and upper thresholds of the humidification output are set to C and D, respectively, and the rotation speed of the rotor 121 is controlled so that the humidification output falls within this range. The humidification output is compared with the lower limit threshold value C (S-5). If this value is less than or equal to the threshold value C, the humidity inside the test chamber 1 is high and the humidification is not necessary, and it is necessary to improve the dehumidification capacity. It is determined that the rotation speed of the rotor 121 is reduced by one step (S-6,
7). As a result, even if the amount of dehumidification increases, the humidification output is reduced, so that useless humidification energy does not increase.
【0028】加湿出力がしきい値C以下でなければ、し
きい値D以上であるかどうかを判断し(S−8)、D以
上であれば、加湿出力が大きく無駄な加湿が行われてい
ると判断し、ロータ121の回転数を1段階上げる(S
−10)。これにより、除湿機12の除湿量が低下して
加湿出力も小さくなり、加湿エネルギーの節約が図られ
る。If the humidification output is not below the threshold value C, it is judged whether it is above the threshold value D (S-8). If it is above D, the humidification output is large and unnecessary humidification is performed. It is determined that the rotor 121 is rotating, and the number of rotations of the rotor 121 is increased by one step (S
-10). As a result, the amount of dehumidification of the dehumidifier 12 decreases, the humidification output also decreases, and the humidification energy can be saved.
【0029】偏差がしきい値CD間にあれば、加湿出力
が目標とする適正値の範囲内にあり、制御性及び加湿エ
ネルギーの節約の両方の要請がほぼ満たされているの
で、ロータの回転数は現状に維持される。If the deviation is between the threshold values CD, the humidification output is within the range of the target proper value, and the requirements for both controllability and saving of humidification energy are substantially satisfied. The numbers will remain the same.
【0030】制御要素としての加湿出力は温湿度調節器
14から加湿器の制御部に発信されるので、これをその
まま回転数コントローラ15に送ることにより、簡易に
ロータの回転数制御を行うことができる。この制御によ
れば、加湿出力を直接適正範囲内に制御するので、確実
に加湿エネルギーの節約が図られる。Since the humidification output as a control element is transmitted from the temperature / humidity controller 14 to the controller of the humidifier, the rotation speed of the rotor can be easily controlled by sending it to the rotation speed controller 15 as it is. it can. According to this control, the humidification output is directly controlled within the proper range, so that the humidification energy can be surely saved.
【0031】以上では、各種制御要素により加湿器12
のロータ121を段階的に制御する例を示したが、ロー
タの回転数をより精度良く制御し更に加湿エネルギーの
低減を図る場合には、図7に示す如く、PI、PD、P
ID等のより高度な制御を行うコントローラの一例とし
てPID回転数コントローラ15´を設け、これに温湿
度調節器14から制御要素をフィードバック入力する制
御系にする。In the above, the humidifier 12 is controlled by various control elements.
7 shows an example of controlling the rotor 121 in a stepwise manner. However, in order to control the rotational speed of the rotor more accurately and further reduce the humidification energy, as shown in FIG. 7, PI, PD, P
A PID rotation speed controller 15 ′ is provided as an example of a controller for performing more advanced control of the ID and the like, and a control system is provided in which a control element is fed back from the temperature / humidity controller 14.
【0032】図8は、このような制御系の場合の概略制
御フローを示す。ロータ制御を開始すると、加湿出力が
設定値EF間にあるかどうかを判断し(S−1)、設定
値外であれば、ロータ回転数をPID制御して回転数出
力を発信し(S−2、3)、ロータの回転数を変更して
設定値の範囲内にする(S−4)。回転数が設定範囲内
の値になっていれば、回転数を現状維持する(S−
5)。FIG. 8 shows a schematic control flow in the case of such a control system. When the rotor control is started, it is determined whether the humidification output is between the set value EF (S-1). If the humidification output is outside the set value EF, the rotor rotation speed is PID-controlled to output the rotation speed output (S- 2 and 3), the number of rotations of the rotor is changed to be within the set value range (S-4). If the rotation speed is within the set range, the rotation speed is maintained as it is (S-
5).
【0033】以上の例では、制御要素として温湿度設定
範囲、温湿度の測定値と設定値との偏差及び加湿出力を
例示し、これらを単独で制御要素とする場合の例を示し
たが、これ以外の制御要素を用いたり、これらを複数個
取り入れた制御をすることも可能である。例えば図8に
おいて、温湿度設定範囲により目標とする加湿出力を設
定分けしたり、この制御中に温湿度の測定値と設定値と
の偏差の要素を追加することもできる。In the above example, the temperature / humidity setting range, the deviation between the measured value of the temperature / humidity and the set value, and the humidification output are illustrated as the control elements, and an example is shown in which these are used as the control elements independently. It is also possible to use a control element other than this or to perform control by incorporating a plurality of these. For example, in FIG. 8, the target humidification output can be set and divided according to the temperature / humidity setting range, and an element of the deviation between the measured value of temperature / humidity and the set value can be added during this control.
【0034】[0034]
【発明の効果】以上の如く本発明によれば、ロータ制御
手段を設け、加湿器の制御と除湿機のロータの回転速度
制御とを組み合わせることにより、必要な除湿量を確保
すると共に、加湿エネルギーの低減を図ることができ
る。このようなロータ制御によれば、除湿機の再生ヒー
タを切り換えたり循環風量を変える必要がないので、除
湿機の構造が複雑化することがない。又、ロータ制御手
段による速度制御に加湿量を制御する制御要素を用いる
ので、制御のための特別の検出手段や計算手段等を設け
る必要がなく、低コストで簡易に環境装置の省エネルギ
ー化を図ることができる。As described above, according to the present invention, by providing the rotor control means and combining the control of the humidifier and the rotation speed control of the rotor of the dehumidifier, the necessary dehumidification amount is secured and the humidification energy is increased. Can be reduced. According to such rotor control, it is not necessary to switch the regeneration heater of the dehumidifier or change the circulating air volume, so that the structure of the dehumidifier does not become complicated. Further, since the control element for controlling the amount of humidification is used for the speed control by the rotor control means, it is not necessary to provide special detection means or calculation means for control, and the energy saving of the environmental device can be easily achieved at low cost. be able to.
【図1】実施例の環境試験装置の概略構成を示す説明図
である。FIG. 1 is an explanatory diagram showing a schematic configuration of an environment test apparatus of an example.
【図2】上記装置の除湿機の概略構成を示す説明図であ
る。FIG. 2 is an explanatory diagram showing a schematic configuration of a dehumidifier of the above device.
【図3】除湿機の特性例を示す曲線図である。FIG. 3 is a curve diagram showing a characteristic example of a dehumidifier.
【図4】上記装置の除湿機ロータの回転数制御例を示
し、(a)は温湿度と回転数の関係の曲線図で(b)は
その回転数と除湿能力との関係を示す。FIG. 4 shows an example of rotation speed control of a dehumidifier rotor of the above apparatus, (a) is a curve diagram of the relationship between temperature and humidity and the rotation speed, and (b) shows the relationship between the rotation speed and the dehumidification capacity.
【図5】上記装置の除湿機ロータの他の制御例を示すフ
ローチャートである。FIG. 5 is a flowchart showing another control example of the dehumidifier rotor of the above apparatus.
【図6】上記装置の除湿機ロータの更に他の制御例を示
すフローチャートである。FIG. 6 is a flowchart showing still another control example of the dehumidifier rotor of the above apparatus.
【図7】上記装置の除湿機ロータの更に他の制御例を示
すブロック図である。FIG. 7 is a block diagram showing still another control example of the dehumidifier rotor of the above apparatus.
【図8】上記制御例のフローチャートである。FIG. 8 is a flowchart of the above control example.
1 試験室(環境室) 2 空調室 6 加湿器 12 除湿機 15 回転数コントローラ(ロータ制御手段) 15´ 回転数コントローラ(ロータ制御手段) 121 ロータ 121a 除湿域 121b 再生域 1 Test Room (Environmental Room) 2 Air Conditioner 6 Humidifier 12 Dehumidifier 15 Rotation Speed Controller (Rotor Control Means) 15 'Rotation Speed Controller (Rotor Control Means) 121 Rotor 121a Dehumidification Area 121b Regeneration Area
Claims (1)
生域を持つ除湿機の前記除湿域に環境室内の気体を導入
して除湿した後空調室に戻す除湿系と加湿器とを備え前
記加湿器の加湿量を制御することにより前記環境室の湿
度条件を制御する環境装置において、 前記加湿量を制御する制御要素に対応して前記ロータの
回転速度を制御するロータ制御手段を設けたことを特徴
とする環境装置。1. A dehumidifying system and a humidifier, wherein a rotor rotates, and a dehumidifier having a dehumidifying area and a regenerating area during one rotation introduces gas in an environmental chamber into the dehumidifying area to dehumidify and then returns to the air-conditioned room. In an environmental device for controlling a humidity condition of the environmental chamber by controlling a humidification amount of the humidifier, rotor control means for controlling a rotation speed of the rotor is provided corresponding to a control element for controlling the humidification amount. Environmental device characterized by the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6107896A JP2933265B2 (en) | 1994-04-22 | 1994-04-22 | Environmental device with rotation control type dehumidifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6107896A JP2933265B2 (en) | 1994-04-22 | 1994-04-22 | Environmental device with rotation control type dehumidifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07293972A true JPH07293972A (en) | 1995-11-10 |
JP2933265B2 JP2933265B2 (en) | 1999-08-09 |
Family
ID=14470823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6107896A Expired - Lifetime JP2933265B2 (en) | 1994-04-22 | 1994-04-22 | Environmental device with rotation control type dehumidifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2933265B2 (en) |
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JPH11141917A (en) * | 1997-11-12 | 1999-05-28 | Daikin Ind Ltd | Dehumidifying/humidifying air supply apparatus |
JP2002235933A (en) * | 2001-02-09 | 2002-08-23 | Mitsubishi Electric Corp | Air conditioner |
EP1912033A1 (en) * | 2006-10-12 | 2008-04-16 | Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO | Process for controlling the moisture content of a supply gas for use in drying a product |
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JP2009041841A (en) * | 2007-08-08 | 2009-02-26 | Fuji Electric Holdings Co Ltd | Dehumidification air conditioner |
JP2009121746A (en) * | 2007-11-14 | 2009-06-04 | Kawasaki Setsubi Kogyo Kk | Corrosion-proofing dehumidifying apparatus and system |
JP2009281676A (en) * | 2008-05-23 | 2009-12-03 | Espec Corp | Air-conditioning device |
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JP2011257016A (en) * | 2010-06-04 | 2011-12-22 | Espec Corp | Air conditioning system |
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JPH11141917A (en) * | 1997-11-12 | 1999-05-28 | Daikin Ind Ltd | Dehumidifying/humidifying air supply apparatus |
JP2002235933A (en) * | 2001-02-09 | 2002-08-23 | Mitsubishi Electric Corp | Air conditioner |
US7370485B2 (en) | 2004-01-16 | 2008-05-13 | Samsung Electronics Co., Ltd. | Performance testing apparatus of refrigerating cycle |
US8372180B2 (en) | 2006-10-12 | 2013-02-12 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process for controlling the moisture content of a supply gas for use in drying a product |
WO2008044932A1 (en) * | 2006-10-12 | 2008-04-17 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Process for controlling the moisture content of a supply gas for use in drying a product |
AU2007307379B2 (en) * | 2006-10-12 | 2012-04-12 | Stichting Wageningen Research | Process for controlling the moisture content of a supply gas for use in drying a product |
EP1912033A1 (en) * | 2006-10-12 | 2008-04-16 | Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO | Process for controlling the moisture content of a supply gas for use in drying a product |
JP2009041841A (en) * | 2007-08-08 | 2009-02-26 | Fuji Electric Holdings Co Ltd | Dehumidification air conditioner |
KR100950371B1 (en) * | 2007-09-20 | 2010-03-29 | 주식회사 포스코 | Brush room wettability control apparatus of blower motor for sintering machine |
JP2009121746A (en) * | 2007-11-14 | 2009-06-04 | Kawasaki Setsubi Kogyo Kk | Corrosion-proofing dehumidifying apparatus and system |
JP2009281676A (en) * | 2008-05-23 | 2009-12-03 | Espec Corp | Air-conditioning device |
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JP5726765B2 (en) * | 2010-01-12 | 2015-06-03 | エスペック株式会社 | Environmental test apparatus and manufacturing method thereof |
JP2011257016A (en) * | 2010-06-04 | 2011-12-22 | Espec Corp | Air conditioning system |
JP6047737B1 (en) * | 2016-01-28 | 2016-12-21 | スガ試験機株式会社 | Combined cycle testing machine |
JP2019174087A (en) * | 2018-03-29 | 2019-10-10 | エスペック株式会社 | Environment forming device and environment forming method |
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