JP2005249357A - Atmosphere control method for cultural property insectproof closed room and its device - Google Patents
Atmosphere control method for cultural property insectproof closed room and its device Download PDFInfo
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- JP2005249357A JP2005249357A JP2004063497A JP2004063497A JP2005249357A JP 2005249357 A JP2005249357 A JP 2005249357A JP 2004063497 A JP2004063497 A JP 2004063497A JP 2004063497 A JP2004063497 A JP 2004063497A JP 2005249357 A JP2005249357 A JP 2005249357A
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本発明は、文化財の展示ケースもしくは収蔵庫等の密閉室内の雰囲気を、文化財を傷めたり、文化財が害虫等により損われたりしないように保つべく制御する方法および装置に関する。 The present invention relates to a method and an apparatus for controlling an atmosphere in a sealed room such as a display case or a storage of a cultural property so as not to damage the cultural property or damage the cultural property by a pest or the like.
歴史上、芸術上、あるいは学術上の価値の高い文化財を展示もしくは収蔵保管するには、これを温度および湿度を制御した窒素・その他の不活性ガスを送入して、内部の雰囲気を、文化財を傷めたり、害虫やかび等が発生したりすることのないように保持されている展示ケースもしくは収蔵庫等の密閉室内へ収容される。 In order to display or store cultural assets with high historical, artistic or academic value, send them nitrogen and other inert gases with controlled temperature and humidity, and change the atmosphere inside. It is housed in a sealed room such as an exhibition case or storage that is held so that it does not damage cultural assets or cause pests or fungi.
近時におけるこのような構成の代表的なものとしては、例えば特許文献１〜３をあげることができる。
上記した各特許文献に記載されている発明には、それぞれ次のような問題がある。
特許文献１に記載の発明：−
バッファタンクから出た窒素を２系統に分離し、一方はそのままで、他方は加湿器を通過させて、混合器において混合させるため、構造が複雑となるとともに、混合の際の両者の比率を、湿度計における湿度の測定値に基づく２つの流量調節弁により定めるようになっているため、操作および制御が面倒である。
The invention described in each of the above patent documents has the following problems.
Invention described in Patent Document 1:
Nitrogen from the buffer tank is separated into two systems, one is left as it is, the other is passed through a humidifier and mixed in the mixer, so that the structure becomes complicated, and the ratio of both at the time of mixing is Since it is determined by two flow rate control valves based on the measured humidity value in the hygrometer, the operation and control are troublesome.
特許文献２に記載の発明：−
密閉容器へ供給される窒素の加温加湿装置の制御手段について、具体的に開示されていない。
Invention described in Patent Document 2:
The control means of the heating and humidifying device for nitrogen supplied to the sealed container is not specifically disclosed.
特許文献３に記載の発明：−
加湿用に大気中の水分を利用しているため、周囲の湿度の影響を受けることとなり、また、温度の調整は、別途に設けたファンのみに頼っているため、その正確な制御は困難であり、文化財の確実な保護に万全を期し得ないものである。
Invention described in Patent Document 3:
Since moisture in the atmosphere is used for humidification, it will be affected by the surrounding humidity, and the temperature adjustment depends only on a separately installed fan, so accurate control is difficult. Yes, it is impossible to ensure complete protection of cultural assets.
本発明は、文化財が不適切な湿気や害虫等によって損われるのを防止するために、窒素ガスを封入した密閉容器内の雰囲気の温度および湿度を、所望の設定値範囲内となるように制御することができ、しかかも構成が簡単で、経済的に作動させることができるようにした文化財保護防虫用密閉室内の雰囲気制御方法および装置を提供することを目的とするものである。 In the present invention, in order to prevent the cultural property from being damaged by inappropriate moisture, pests, etc., the temperature and humidity of the atmosphere in the sealed container filled with nitrogen gas are set within a desired set value range. It is an object of the present invention to provide a method and apparatus for controlling the atmosphere in a heritage chamber for protecting cultural properties, which can be controlled, is simple in construction, and can be operated economically.
上記目的を達成するため、本発明の方法は、次のような特徴を有している。
(１)窒素ガス発生装置により発生させられた窒素ガスを、中空糸膜加湿装置を通過させて加湿した後、その温度および湿度を計測し、その湿度が設定範囲外にあるときには、前記中空糸膜加湿装置における中空糸膜の外側に接触する水の温度を、前記窒素ガスの設定湿度に適する値となるように制御する。
In order to achieve the above object, the method of the present invention has the following characteristics.
(1) After the nitrogen gas generated by the nitrogen gas generator is humidified by passing through the hollow fiber membrane humidifier, the temperature and humidity are measured, and when the humidity is outside the set range, the hollow fiber The temperature of water in contact with the outside of the hollow fiber membrane in the membrane humidifier is controlled so as to be a value suitable for the set humidity of the nitrogen gas.
(２)窒素ガス発生装置により発生させられた窒素ガスを、中空糸膜加湿装置を通過させて加湿した後、その温度および湿度を計測して制御装置へ導き、制御装置において、得ようとする窒素ガスの湿度に適する温度を判断し、窒素ガスの湿度が設定範囲外にあるときには、前記中空糸膜加湿装置における中空糸膜の外側に接触する水の加熱用ヒータを、この水の温度が前記窒素ガスの設定湿度に適する値とするように、付勢もしくは除勢する。 (2) The nitrogen gas generated by the nitrogen gas generator is humidified by passing through the hollow fiber membrane humidifier, and then the temperature and humidity are measured and led to the controller, and the controller tries to obtain it. When a temperature suitable for the humidity of the nitrogen gas is determined and the humidity of the nitrogen gas is outside the set range, a heater for heating the water that contacts the outside of the hollow fiber membrane in the hollow fiber membrane humidifier is connected to the temperature of the water. Energize or de-energize the nitrogen gas to a value suitable for the set humidity.
(３)上記(１)または(２)項において、窒素ガスの最終吐出温度を、温度センサで検知し、設定湿度に対応する温度に満たない場合には、これをヒータをもって加熱する。 (3) In the above item (1) or (2), the final discharge temperature of the nitrogen gas is detected by a temperature sensor, and if it does not reach the temperature corresponding to the set humidity, it is heated with a heater.
(４)上記(１)〜(３)項のいずれかにおいて、窒素ガス発生装置より発生させられる窒素ガスの量に応じて、適切な加湿が行われるように、前記窒素ガスを、容量の異なる中空糸膜加湿装置のいずれかを通過させる。
また同じく本発明の装置は、次のように構成されている。
(4) In any one of the above items (1) to (3), the nitrogen gas has a different capacity so that appropriate humidification is performed according to the amount of nitrogen gas generated from the nitrogen gas generator. Pass through any of the hollow fiber membrane humidifiers.
Similarly, the apparatus of the present invention is configured as follows.
(５)窒素ガス発生装置と、これにより発生させられた窒素ガスを通過させることにより加湿する中空糸膜加湿装置と、その吐出窒素ガスの温度および湿度を計測するセンサと、この計測湿度が設定範囲外にあるときには、前記中空糸膜加湿装置における中空糸膜の外側に接触する水を加熱するためのヒータを、この水の温度が前記窒素ガスの設定湿度に適する発熱を行うように制御する制御装置とを備えている。 (5) A nitrogen gas generator, a hollow fiber membrane humidifier that humidifies the nitrogen gas generated thereby, a sensor that measures the temperature and humidity of the discharged nitrogen gas, and the measured humidity is set When the temperature is out of the range, the heater for heating the water that contacts the outside of the hollow fiber membrane in the hollow fiber membrane humidifier is controlled so that the temperature of the water generates heat suitable for the set humidity of the nitrogen gas. And a control device.
(６)上記(５)項において、容量の異なる複数の中空糸膜加湿装置を並列に設け、窒素ガス発生装置からの吐出窒素ガスを、その流量に応じて、最適の中空糸膜加湿装置へ導くようにする。 (6) In the above item (5), a plurality of hollow fiber membrane humidifiers having different capacities are provided in parallel, and the discharged nitrogen gas from the nitrogen gas generator is sent to the optimum hollow fiber membrane humidifier according to the flow rate. Try to guide.
(７)上記(６)項において、複数の窒素ガス発生装置に対する切換え手段は、窒素ガス発生装置からの吐出窒素ガスの流量に応じて、最適の中空糸膜加湿装置を選択しうる流量対応切換弁である。 (7) In the above item (6), the switching means for the plurality of nitrogen gas generators is a flow rate corresponding switch capable of selecting an optimum hollow fiber membrane humidifier according to the flow rate of the discharged nitrogen gas from the nitrogen gas generator. It is a valve.
(８)上記(５)〜(７)項のいずれかにおいて、窒素ガスの最終吐出温度を検知する温度センサと、この温度センサにより検知された窒素ガスの温度が、設定湿度に対応する温度に満たない場合には、これを加熱するように制御されるヒータとを備えている。 (8) In any one of the above items (5) to (7), the temperature sensor that detects the final discharge temperature of nitrogen gas, and the temperature of the nitrogen gas detected by the temperature sensor is a temperature corresponding to the set humidity. If not, a heater is provided that is controlled to heat it.
請求項１に係る発明：−
窒素ガスが通過する中空糸膜加湿装置の中空糸膜の外側に接触する水の温度を調節することにより、窒素ガスの湿度を、簡単に設定範囲となるように制御して、密閉室へ送り込むことができる。
Invention of Claim 1:
By adjusting the temperature of the water that contacts the outside of the hollow fiber membrane of the hollow fiber membrane humidifier through which nitrogen gas passes, the humidity of the nitrogen gas is easily controlled to be within the set range and sent to the sealed chamber be able to.
請求項２に係る発明：−
得ようとする窒素ガスの湿度を設定範囲内とするために、中空糸膜加湿装置を通過する窒素ガスの温度を、中空糸膜の外側に接触する水の温度を、ヒータをもって付勢もしくは除勢することにより、簡単に制御することができる。
Invention according to claim 2:
In order to keep the humidity of the nitrogen gas to be obtained within the set range, the temperature of the nitrogen gas passing through the hollow fiber membrane humidifier is energized or removed by the heater with respect to the temperature of the water contacting the outside of the hollow fiber membrane. By controlling, it can be easily controlled.
請求項３に係る発明：−
窒素ガスの吐出温度を、密閉室へ送られる直前に制御して、好ましい湿度とすることができる。
Invention according to claim 3:
The discharge temperature of the nitrogen gas can be controlled immediately before being sent to the sealed chamber to obtain a preferable humidity.
請求項４に係る発明：−
発生させられる窒素ガスの流量に応じて、無駄なく適切な加湿が行われ、効率的である。
Invention according to claim 4:
Appropriate humidification is performed without waste according to the flow rate of the generated nitrogen gas, which is efficient.
請求項５に係る発明：−
中空糸膜加湿装置における中空糸膜の外側に接する水の温度を最適に制御して、能率的かつ経済的に、所望の湿度の窒素ガスを密閉室へ送り込むことができる。
Invention according to claim 5:
The temperature of water in contact with the outside of the hollow fiber membrane in the hollow fiber membrane humidifier can be optimally controlled to efficiently and economically feed nitrogen gas having a desired humidity into the sealed chamber.
請求項６に係る発明：−
発生させられた窒素ガスを、その流量に応じて、最も適切な中空糸膜加湿装置へ導くことができるので、無駄がなく経済的である。
Invention according to claim 6:
Since the generated nitrogen gas can be guided to the most appropriate hollow fiber membrane humidifier according to the flow rate, it is economical and economical.
請求項７に係る発明：−
発生させられた窒素ガスは、その流量に応じて、最もふさわしい中空糸膜加湿装置へ自動的に導かれるので能率的である。
Invention according to claim 7:-
The generated nitrogen gas is automatically guided to the most suitable hollow fiber membrane humidifier according to the flow rate, so that it is efficient.
請求項８に係る発明：−
窒素ガスの温度は、密閉室へ導かれる直前に、加熱されて適正値とされるので、文化財の保護効果は大である。
Invention according to claim 8:
Since the temperature of the nitrogen gas is heated to an appropriate value immediately before being introduced into the sealed chamber, the protective effect of the cultural property is great.
図１に基いて説明する。
大気中より窒素ガスを分離させる公知の適宜の窒素ガス発生装置(１)の排出口は、リザーブタンク(２)に接続され、リザーブタンク(２)の排出口は、ガス流量切換弁(３)を介して、標準流量中空糸膜加湿装置(４)に、またガス流量切換弁(３)とガス流量調整弁(５)を介して、小流量中空糸膜加湿装置(６)に接続されている。
This will be described with reference to FIG.
A discharge port of a known appropriate nitrogen gas generator (1) for separating nitrogen gas from the atmosphere is connected to a reserve tank (2), and a discharge port of the reserve tank (2) is a gas flow rate switching valve (3). To the standard flow hollow fiber membrane humidifier (4) and to the small flow hollow fiber membrane humidifier (6) via the gas flow switching valve (3) and the gas flow control valve (5). Yes.
ガス流量切換弁(３)は、リザーブタンク(２)から吐出されてくる窒素ガスの流量に応じて、リザーブタンク(２)の排出口を、標準流量もしく小流量中空糸膜加湿装置(４)(６)のいずれかに連通させるものであって、手動式であってもよいが、リザーブタンク(２)からの吐出量を検知して、自動的に好ましい加湿装置と連通させるものとすると便利である。 The gas flow rate switching valve (3) is connected to the discharge port of the reserve tank (2) according to the flow rate of nitrogen gas discharged from the reserve tank (2). ) It communicates with either of (6) and may be a manual type, but if it detects the amount of discharge from the reserve tank (2) and automatically communicates with a preferred humidifier Convenient.
中空糸膜型加湿装置(４)(６)とは、それぞれ、例えば、特開２００３−２６９７５４号公報に記載されているように、水蒸気は通すが、水は通さない中空糸膜の管状体の内部に気体を通し、かつこの管状体の外面に、加湿用の水を接触させることにより、水が加熱されて発生する水蒸気をもって、管状体の内部の気体を加湿する公知の適宜のものである。 The hollow fiber membrane type humidifiers (4) and (6) are, as described in, for example, JP-A-2003-269754, a hollow fiber membrane tubular body that allows water vapor to pass but does not allow water to pass. It is a well-known appropriate one that humidifies the gas inside the tubular body with water vapor generated by heating the water by passing gas inside and bringing the water for humidification into contact with the outer surface of the tubular body. .
すなわち、両中空糸膜型加熱装置(４)(６)は、それぞれ中空糸膜管状体(９)(10)の外周に水管(11)(12)を嵌合固着して形成されている。 That is, both the hollow fiber membrane type heating devices (4) and (6) are formed by fitting the water tubes (11) and (12) to the outer circumferences of the hollow fiber membrane tubular bodies (9) and (10), respectively.
両中空糸膜型加熱装置(４)(６)の吐出口、すなわち中空糸膜管状体(4a)(6a)の出口は、バッファタンク(７)を介して、文化財保護防虫用密閉室(８)に接続されている。 The discharge ports of the two hollow fiber membrane heating devices (4) and (6), that is, the outlets of the hollow fiber membrane tubular bodies (4a) and (6a) are sealed through a buffer tank (7) for a heritage chamber for protecting cultural properties (7). 8).
標準流量中空糸膜加湿装置(４)は、窒素ガス発生装置(１)から吐出する窒素ガスの流量（例えば毎分２０ｌ）に対応する容量のものであり、小流量中空糸膜加湿装置(６)は、例えば毎分５ｌの流量に対応する容量のものであり、いずれも、それぞれの流量の窒素ガスに対して、適切に加湿するようになっている。 The standard flow rate hollow fiber membrane humidifier (4) has a capacity corresponding to the flow rate of nitrogen gas discharged from the nitrogen gas generator (1) (for example, 20 liters per minute). ) Has a capacity corresponding to a flow rate of 5 liters per minute, for example, and any of them appropriately humidifies nitrogen gas at each flow rate.
両中空糸膜加湿装置(４)(６)の水管(11)(12)の入口端(11a)(12a)、および出口端(11b)(12b)は、それぞれ導管(13)(14)および(15)(16)を介して、図示しない循環ポンプと電磁弁と流量センサとからなる分配器(17)と接続されている。分配器(17)には、水タンク(18)内の水が、水用ヒータ(19)により暖められて導かれるようになっている。 The inlet ends (11a) and (12a) and the outlet ends (11b) and (12b) of the water pipes (11) and (12) of the hollow fiber membrane humidifiers (4) and (6) are respectively connected to the conduits (13) and (14) and (15) Via a distributor (16), connected to a distributor (17) comprising a circulation pump (not shown), a solenoid valve and a flow rate sensor. The water in the water tank (18) is guided to the distributor (17) by being warmed by the water heater (19).
バッファタンク(７)内の窒素ガスの温度および湿度は、温度・湿度センサ(20)により検知され、その温度および湿度が設定値より低下すると、温度・湿度設定制御装置(21)により、窒素ガス用ヒータ(22)が付勢されて、バッファタンク(７)内の窒素ガスは加熱されるようになっている。 The temperature and humidity of the nitrogen gas in the buffer tank (7) are detected by the temperature / humidity sensor (20). When the temperature and humidity drop below the set values, the temperature / humidity setting controller (21) The heater (22) is energized so that the nitrogen gas in the buffer tank (7) is heated.
このようにして、バッファタンク(７)内の窒素ガスの温度および湿度は、常に設定範囲に保たれ、文化財保護防虫用密閉室(８)内の雰囲気は、文化財を湿度や害虫や褪色等から保護するのに好適な状態に保たれる。 In this way, the temperature and humidity of the nitrogen gas in the buffer tank (7) are always kept within the set range, and the atmosphere in the heritage chamber (8) for protecting cultural assets protects the cultural assets from humidity, pests and amber. It is kept in a state suitable for protection from the like.
(１)窒素ガス発生装置
(２)リザーブタンク
(３)ガス流量切換弁
(４)標準流量中空糸膜加湿装置
(4a)出口
(５)ガス流量調整弁
(６)小流量中空糸膜加湿装置
(6a)出口
(７)バッファタンク
(８)文化財保護防虫用密閉室
(９)(10)中空糸膜管状体
(11)(12)水管
(11a)(12a)入口端
(11b)(12b)出口端
(13)〜(16)導管
(17)分配器
(18)水タンク
(19)水用ヒータ
(20)温度・湿度センサ
(21)温度・湿度設定制御装置
(22)窒素ガス用ヒータ
(1) Nitrogen gas generator
(2) Reserve tank
(3) Gas flow switching valve
(4) Standard flow rate hollow fiber membrane humidifier
(4a) Exit
(5) Gas flow control valve
(6) Small flow rate hollow fiber membrane humidifier
(6a) Exit
(7) Buffer tank
(8) Sealed room for protection of cultural properties
(9) (10) Hollow fiber membrane tubular body
(11) (12) Water pipe
(11a) (12a) Inlet end
(11b) (12b) Exit end
(13)-(16) Conduit
(17) Distributor
(18) Water tank
(19) Water heater
(20) Temperature / humidity sensor
(21) Temperature / humidity setting controller
(22) Nitrogen gas heater
Claims (8)
A temperature sensor that detects the final discharge temperature of the nitrogen gas, and a heater that is controlled to heat the temperature of the nitrogen gas detected by the temperature sensor when the temperature does not reach the temperature corresponding to the set humidity. The atmosphere control device in the hermetically sealed chamber for protecting cultural properties according to any one of claims 5 to 7.
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| JPH08206479A (en) * | 1995-02-03 | 1996-08-13 | Kojima Seisakusho:Kk | Gas humidifier, display case including the same, and method for preventing insect using humidified nitrogen gas |
| JPH0928520A (en) * | 1995-07-18 | 1997-02-04 | Makiko Sugiyama | Display device |
| JP2001263739A (en) * | 2000-03-23 | 2001-09-26 | Toto Ltd | Hot water humidifying device |
| JP2002075421A (en) * | 2000-09-01 | 2002-03-15 | Honda Motor Co Ltd | Humidifier for fuel cell |
| JP2003097832A (en) * | 2001-09-26 | 2003-04-03 | Mitsui Eng & Shipbuild Co Ltd | Method and device for gas humidifying using pervaporation film |
| JP2003252701A (en) * | 2002-03-01 | 2003-09-10 | Kofurotsuku Kk | Apparatus for insecticidal treatment of cultural property |
| JP2004028490A (en) * | 2002-06-27 | 2004-01-29 | Asahi Glass Engineering Co Ltd | Gas humidifier and method for same |
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