JP2005090770A

JP2005090770A - Pure steam generator

Info

Publication number: JP2005090770A
Application number: JP2003320890A
Authority: JP
Inventors: Yusuke Shimizu; 祐介清水
Original assignee: TLV Co Ltd
Current assignee: TLV Co Ltd
Priority date: 2003-09-12
Filing date: 2003-09-12
Publication date: 2005-04-07

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pure steam generator for heating various drugs and medicines, and foods by low-temperature pure steam of which a temperature is changed without time lag. <P>SOLUTION: A heat exchanging tank 12 and a pure steam-based device 2 are connected by a pure steam supply pipe 13. A vacuum pump 3 is connected with a lower part of the steam-based device 2. The vacuum pump 3 is composed of an ejector 21, a plurality of water circulation tanks 8, 9 and a circulating pump 23. The heat exchanging tank 12 is connected with the circulating water tanks 8, 9 of the vacuum pump 3 through a coil-shaped pure water supply pipe 4 formed by extending a pure water pipe 10. The pure water heated by the circulating water tanks 8, 9 is supplied to the heat exchanging tank 12 to prepare the pure steam, and a heated object is heated by the steam-based device 2. The condensed water produced by the heating is sucked by the ejector 21. By storing the circulating water of various temperatures in the plurality of circulating water tanks 8, 9, the temperature of the pure steam can be instantaneously switched. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、１００℃以下の低温純粋蒸気で各種医薬品や食料品等を加熱する純粋蒸気発生装置に関する。 The present invention relates to a pure steam generator that heats various pharmaceuticals, foodstuffs, and the like with low-temperature pure steam at 100 ° C. or lower.

純粋蒸気発生装置は、不純物の少ない純水を加熱することによって純粋蒸気を発生するものである。 The pure steam generator generates pure steam by heating pure water with few impurities.

この純粋蒸気発生装置においては、純粋蒸気の圧力すなわち蒸気温度を変更する場合に時間を要してしまい、速やかに蒸気温度を変更することができない問題点があった。これは、蒸気温度を変更する場合に、吸引手段のエゼクタを通過する流体の温度を変化させなければならないのであるが、エゼクタを通過する流体の温度を変化させるのに、吸引手段のタンク内に所定量の流体を補給して所定温度になるまでに時間を要してしまうためである。
特開２００３−９０５０４号公報 This pure steam generator has a problem in that it takes time to change the pressure of the pure steam, that is, the steam temperature, and the steam temperature cannot be changed quickly. This is because when the steam temperature is changed, the temperature of the fluid passing through the ejector of the suction means must be changed, but in order to change the temperature of the fluid passing through the ejector, This is because it takes time to replenish a predetermined amount of fluid and reach a predetermined temperature.
JP 2003-90504 A

解決しようとする問題点は、純粋蒸気の圧力すなわち温度を変更する場合に、時間遅れを生じることなく、速やかに変更することのできる純粋蒸気発生装置を提供することである。 The problem to be solved is to provide a pure steam generator which can be changed quickly without causing a time delay when the pressure or temperature of the pure steam is changed.

本発明は、熱交換部で純水を低圧の加熱用蒸気によって加熱することにより、不純物の少ない低圧純粋蒸気を発生するものにおいて、熱交換部に純水供給管と加熱用蒸気供給管を接続し、当該熱交換部で発生した純粋蒸気を純粋蒸気使用機器へ供給する純粋蒸気供給管を接続して、当該純粋蒸気使用機器にエゼクタと複数の循環水タンクと循環ポンプとから成る真空ポンプを連通すると共に、当該複数の循環水タンク内の循環水温を制御する水温制御部を設けたことを特徴とする。 In the present invention, pure water is heated by a low-pressure heating steam in the heat exchange section to generate low-pressure pure steam with less impurities, and the pure water supply pipe and the heating steam supply pipe are connected to the heat exchange section. Then, a pure steam supply pipe for supplying pure steam generated in the heat exchange section to pure steam equipment is connected, and a vacuum pump comprising an ejector, a plurality of circulating water tanks and a circulation pump is connected to the pure steam equipment. A water temperature control unit that communicates and controls the circulating water temperature in the plurality of circulating water tanks is provided.

本発明の純粋蒸気発生装置は、エゼクタと複数の循環水タンクと循環ポンプとから成る真空ポンプを純粋蒸気使用機器に連通して、複数の循環水タンク内の循環水温を制御する水温制御部を設けたことによって、複数の循環水タンクに変更したい圧力すなわち温度に対応した温度の循環水を予め溜め置くことにより、温度変更時にこのタンクへ接続切換えを行うだけで瞬時にエゼクタへ所定温度の流体を供給することができ、純粋蒸気温度の変更を速やかに行うことができるという利点がある。 The pure steam generator of the present invention includes a water temperature control unit that controls a circulating water temperature in a plurality of circulating water tanks by connecting a vacuum pump including an ejector, a plurality of circulating water tanks and a circulating pump to a device using pure steam. By providing pre-stored circulating water at a temperature corresponding to the pressure to be changed, that is, temperature, in a plurality of circulating water tanks, the fluid at a predetermined temperature can be instantaneously transferred to the ejector simply by switching the connection to this tank when the temperature is changed. There is an advantage that the pure steam temperature can be changed quickly.

本発明は、複数の循環水タンクに変更すべき純粋蒸気温度に対応した温度の循環水を予め溜め置き、純粋蒸気温度を変更する場合に所定温度の循環水タンクと接続切換えすることによって、時間遅れを生じることなく純粋蒸気温度を変更することができる。 In the present invention, circulating water having a temperature corresponding to the pure steam temperature to be changed is stored in advance in a plurality of circulating water tanks, and when the pure steam temperature is changed, connection with the circulating water tank having a predetermined temperature is switched. The pure steam temperature can be changed without causing a delay.

図１は本発明の１実施例の構成図であって、低圧純粋蒸気を発生する熱交換部１と、純粋蒸気使用機器２と、真空ポンプ３、及び、真空ポンプ３を構成する複数の循環水タンク８，９とで純粋蒸気発生装置を構成する。 FIG. 1 is a configuration diagram of an embodiment of the present invention, in which a heat exchanging unit 1 that generates low-pressure pure steam, a pure steam using device 2, a vacuum pump 3, and a plurality of circulations constituting the vacuum pump 3. The water tanks 8 and 9 constitute a pure steam generator.

熱交換部１に純水供給管４と加熱用蒸気供給管５をそれぞれ接続する。加熱用蒸気供給管５には供給する蒸気の圧力を制御する自動制御弁６と開閉弁７を取り付ける。加熱用蒸気供給管５の出口側端部に蒸気トラップ１１を取り付ける。純水供給管４は、真空ポンプ３の複数の循環水タンク８，９内を通して純水管１０と接続する。純水供給管４から熱交換タンク１２内へ純水が供給され、加熱用蒸気で加熱されることによって純粋蒸気を発生する。 A pure water supply pipe 4 and a heating steam supply pipe 5 are connected to the heat exchanging unit 1, respectively. An automatic control valve 6 and an on-off valve 7 for controlling the pressure of the supplied steam are attached to the heating steam supply pipe 5. A steam trap 11 is attached to the outlet side end of the heating steam supply pipe 5. The pure water supply pipe 4 is connected to the pure water pipe 10 through the plurality of circulating water tanks 8 and 9 of the vacuum pump 3. Pure water is supplied from the pure water supply pipe 4 into the heat exchange tank 12 and heated with heating steam to generate pure steam.

熱交換部１の上部と純粋蒸気使用機器２を純粋蒸気供給管１３で接続する。供給管１３には、熱交換タンク１２内で発生した純粋蒸気の圧力を検出する圧力センサ１４と、自動制御弁１５と開閉弁１６、及び、蒸気使用機器２の入口側の圧力を検出する圧力センサ１７をそれぞれ取り付ける。圧力センサ１４は図示しない圧力コントローラを介して自動制御弁６と電気接続し、一方、圧力センサ１７は同じくコントローラを介して自動制御弁１５と電気接続する。 The upper part of the heat exchange unit 1 and the pure steam using device 2 are connected by a pure steam supply pipe 13. In the supply pipe 13, a pressure sensor 14 that detects the pressure of pure steam generated in the heat exchange tank 12, an automatic control valve 15, an on-off valve 16, and a pressure that detects the pressure on the inlet side of the steam-using device 2. Each sensor 17 is attached. The pressure sensor 14 is electrically connected to the automatic control valve 6 via a pressure controller (not shown), while the pressure sensor 17 is electrically connected to the automatic control valve 15 via the controller.

純粋蒸気使用機器２内のコイル状の純粋蒸気供給管１８の下端出口側は、並列に配置したバルブ１９と蒸気トラップ２０を介して、真空ポンプ３を構成するエゼクタ２１の吸引室２２と接続する。純粋蒸気使用機器２内で図示しない被加熱物を加熱して熱を奪われた供給管１８内の純粋蒸気は、凝縮して復水となって、蒸気トラップ２０を通って吸引室２２へ吸引される。 The lower end outlet side of the coiled pure steam supply pipe 18 in the pure steam using device 2 is connected to the suction chamber 22 of the ejector 21 constituting the vacuum pump 3 through a valve 19 and a steam trap 20 arranged in parallel. . The pure steam in the supply pipe 18, which has been deprived of heat by heating an object to be heated (not shown) in the pure steam using device 2, is condensed into condensate and sucked into the suction chamber 22 through the steam trap 20. Is done.

真空ポンプ３をエゼクタ２１と複数の循環水タンク８，９と循環ポンプ２３及びこれらを連結する連結管路２４で構成する。エゼクタ２１の出口管２５を分岐して複数の循環水タンク８，９と接続し、それぞれの循環水タンク８，９の出口側は連結管路２４と接続して循環ポンプ２３と連設する。真空ポンプ３は、循環ポンプ２３で循環水タンク８又は９内の循環水をエゼクタ２１へ供給して、吸引室２２で吸引力を発生するものである。 The vacuum pump 3 includes an ejector 21, a plurality of circulating water tanks 8 and 9, a circulating pump 23, and a connecting pipe line 24 connecting them. The outlet pipe 25 of the ejector 21 is branched and connected to the plurality of circulating water tanks 8 and 9, and the outlet sides of the circulating water tanks 8 and 9 are connected to the connecting pipe 24 and connected to the circulating pump 23. The vacuum pump 3 supplies the circulating water in the circulating water tank 8 or 9 to the ejector 21 by the circulation pump 23 and generates a suction force in the suction chamber 22.

純水の供給源と連通した純水管１０を分岐した純水分岐管２６，２７を、それぞれ循環水タンク８，９内をコイル状に通過して純水供給管４と連通する。また、純水管１０を分岐した分岐管２８，２９を循環水タンク８，９へ接続して、供給する純水の量を制御することによって、タンク８，９内の水温を任意にコントロールできるようにする。なお、タンク８，９内へ純水を供給する代わりに工業用水や水道水を供給することもできる。また、それぞれの循環水タンク８，９に内部の水温を検出する温度センサを取り付けて、タンク８，９へ供給する純水や工業用水や水道水の量を制御することもできる。 The pure water branch pipes 26 and 27 branched from the pure water pipe 10 communicated with the pure water supply source pass through the circulating water tanks 8 and 9 in a coil shape and communicate with the pure water supply pipe 4. Further, by connecting the branch pipes 28 and 29 branched from the pure water pipe 10 to the circulating water tanks 8 and 9 and controlling the amount of pure water supplied, the water temperature in the tanks 8 and 9 can be arbitrarily controlled. To. In addition, industrial water or tap water can be supplied instead of supplying pure water into the tanks 8 and 9. In addition, the circulating water tanks 8 and 9 can be provided with temperature sensors that detect the internal water temperature, and the amount of pure water, industrial water, and tap water supplied to the tanks 8 and 9 can be controlled.

純水管１０と純水分岐管２６，２７を通った純水は、循環水タンク８，９内をコイル状に通過する間にタンク８，９内の循環水によって加熱されて、純水供給管４から熱交換タンク１２内へ至る。このように、熱交換タンク１２へ供給する純水を加熱することによって、熱交換タンク１２内での純水の蒸発を効率的に行うことができる。 The pure water that has passed through the pure water pipe 10 and the pure water branch pipes 26 and 27 is heated by the circulating water in the tanks 8 and 9 while passing through the circulating water tanks 8 and 9 in a coil shape, and the pure water supply pipe 4 to the heat exchange tank 12. Thus, by heating the pure water supplied to the heat exchange tank 12, the pure water can be efficiently evaporated in the heat exchange tank 12.

複数タンク８，９内の循環水の温度を、例えば、４０℃と７０℃と異なる温度に設定しておけば、付設のバルブを操作することによって、循環ポンプ２３からエゼクタ２１へ供給する循環水の水温を異なる温度へ瞬時に切換えることができる。なお、循環水タンク８，９は通常は両方を同時に使用することはなく、付設のバルブを開閉操作していずれか一方の循環水タンク８又は９を使用する。 If the temperature of the circulating water in the plurality of tanks 8 and 9 is set to a temperature different from 40 ° C. and 70 ° C., for example, the circulating water supplied from the circulation pump 23 to the ejector 21 by operating the attached valve. The water temperature can be switched to a different temperature instantly. In general, the circulating water tanks 8 and 9 are not used at the same time, and one of the circulating water tanks 8 or 9 is used by opening and closing an attached valve.

熱交換タンク１２内で発生した純粋蒸気は、純粋蒸気供給管１３から蒸気使用機器２へ供給されて被加熱物を加熱し凝縮して復水となって蒸気トラップ２０又はバルブ１９を通ってエゼクタ２１に吸引される。エゼクタ２１の吸引力により、あるいは、コイル状の純粋蒸気供給管１８内で蒸気が凝縮してその体積が急激に減少することにより、蒸気供給管１８内の純粋蒸気は大気圧以下の真空蒸気圧力に維持される。 The pure steam generated in the heat exchange tank 12 is supplied from the pure steam supply pipe 13 to the steam using device 2 to heat and condense the object to be heated to condensate and pass through the steam trap 20 or the valve 19 and ejector. 21 is aspirated. The vapor is condensed in the coiled pure steam supply pipe 18 due to the suction force of the ejector 21, and the volume of the steam is rapidly reduced, so that the pure steam in the steam supply pipe 18 has a vacuum vapor pressure below atmospheric pressure. Maintained.

複数の循環水タンク８，９に変更すべき純粋蒸気温度に対応した温度の循環水を予め溜め置き、純粋蒸気温度を変更する場合に所定温度の循環水タンクと接続切換えすることによって、時間遅れを生じることなく純粋蒸気温度を瞬時に変更することができる。 A plurality of circulating water tanks 8 and 9 are preliminarily stored with circulating water having a temperature corresponding to the pure steam temperature, and when the pure steam temperature is changed, the connection with the circulating water tank having a predetermined temperature is switched to delay the time. It is possible to change the pure steam temperature instantly without causing any problems.

純粋蒸気使用機器で使用する純粋蒸気の温度を任意に且つ瞬時に切換えるものであり、１００℃以下の低温純粋蒸気で各種医薬品や食料品等を温度精度良く加熱することができる。 The temperature of the pure steam used in the apparatus using pure steam is arbitrarily and instantaneously switched, and various pharmaceuticals, foodstuffs, etc. can be heated with low temperature pure steam at a temperature of 100 ° C. or less.

本発明の純粋蒸気発生装置の実施例を示す構成図。The block diagram which shows the Example of the pure steam generator of this invention.

符号の説明Explanation of symbols

１熱交換部
２純粋蒸気使用機器
３真空ポンプ
４純水供給管
８，９循環水タンク
１０純水管
１２熱交換タンク
１３純粋蒸気供給管
２１エゼクタ
２３循環ポンプ
DESCRIPTION OF SYMBOLS 1 Heat exchange part 2 Pure steam using equipment 3 Vacuum pump 4 Pure water supply pipes 8 and 9 Circulating water tank 10 Pure water pipe 12 Heat exchange tank 13 Pure steam supply pipe 21 Ejector 23 Circulating pump

Claims

熱交換部で純水を低圧の加熱用蒸気によって加熱することにより、不純物の少ない低圧純粋蒸気を発生するものにおいて、熱交換部に純水供給管と加熱用蒸気供給管を接続し、当該熱交換部で発生した純粋蒸気を純粋蒸気使用機器へ供給する純粋蒸気供給管を接続して、当該純粋蒸気使用機器にエゼクタと複数の循環水タンクと循環ポンプとから成る真空ポンプを連通すると共に、当該複数の循環水タンク内の循環水温を制御する水温制御部を設けたことを特徴とする純粋蒸気発生装置。
When pure water is heated with low-pressure heating steam in the heat exchange section to generate low-pressure pure steam with few impurities, a pure water supply pipe and a heating steam supply pipe are connected to the heat exchange section, and the heat A pure steam supply pipe for supplying pure steam generated in the exchange unit to the equipment using pure steam is connected, and a vacuum pump composed of an ejector, a plurality of circulating water tanks and a circulating pump is connected to the equipment using pure steam. A pure steam generator characterized in that a water temperature controller for controlling the circulating water temperature in the plurality of circulating water tanks is provided.