JP2548158B2 - Steam generator - Google Patents
Steam generatorInfo
- Publication number
- JP2548158B2 JP2548158B2 JP62003514A JP351487A JP2548158B2 JP 2548158 B2 JP2548158 B2 JP 2548158B2 JP 62003514 A JP62003514 A JP 62003514A JP 351487 A JP351487 A JP 351487A JP 2548158 B2 JP2548158 B2 JP 2548158B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water supply
- steam
- steam generator
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、家庭の浴室やシャワールーム等をウェット
サウナとして利用するのに適した蒸気発生装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam generator suitable for use as a wet sauna in a bathroom or shower room at home.
従来の技術 従来、この種の蒸気発生装置は、第４図に開示されて
いるように、蒸気発生器への水タンクからの水の供給
は、蒸気加熱管60と水加熱管61を気水分離筒62で接続し
た蒸気発生器に、カセット式の水タンク槽63から水加熱
管61へ循環管64を経て水が自然落差により供給される。
図中65は水加熱管61と蒸気加熱管60を加熱するバーナで
ある。2. Description of the Related Art Conventionally, in a steam generator of this type, as shown in FIG. 4, water is supplied from a water tank to a steam generator through a steam heating pipe 60 and a water heating pipe 61. Water is supplied from the cassette-type water tank tank 63 to the water heating pipe 61 via the circulation pipe 64 to the steam generator connected by the separation cylinder 62 by a natural head.
Reference numeral 65 in the drawing denotes a burner for heating the water heating pipe 61 and the steam heating pipe 60.
又、水の使用量が少ないので蒸気発生器内のスケール
付着を防止するための排水も行なわれないのが一般的で
あった。従って、排水弁は特に設けられていない。さら
に、家庭用より大きな貯水量を有する業務用の蒸気発生
装置では、第５図に開示されているように、ボイラ燃焼
室66の周囲に多数設けられた水管67を加熱して蒸気を発
生させるものが一般的であり、その蒸気圧力が高く、蒸
気圧力より高い給水圧力で給水するため高圧ポンプ68に
より給水し、スケール付着防止については定期的にボイ
ラ管理者等がドレン排水コック69を開弁して行なってい
た。In addition, since the amount of water used is small, it is general that drainage is not performed to prevent scale adhesion in the steam generator. Therefore, no drain valve is provided. Further, in a commercial steam generator having a larger amount of stored water than that for household use, as disclosed in FIG. 5, a large number of water pipes 67 provided around the boiler combustion chamber 66 are heated to generate steam. In general, the steam pressure is high, and water is supplied by the high-pressure pump 68 to supply water at a water supply pressure higher than the steam pressure.For prevention of scale adhesion, the boiler administrator regularly opens the drain drain cock 69. I was doing it.
発明が解決しようとする問題点 このような従来の構成では、バーナ65により水加熱管
61を加熱すると、水が沸騰して気液混合の蒸気が発生す
る。そして、気水分離筒62で気液混合が分離され、蒸気
のみが蒸気加熱管60でさらに加熱される。このようにし
て、蒸気発生器内の水が蒸発により減少すると、タンク
槽63または給水路中に設けられた弁部（図示しない）を
開き水を補給する時に、蒸気発生器の有する蒸気圧がタ
ンク槽63に加わるため、タンク槽63は大気とは遮断され
た密閉型でなければならなかった。また、蒸気を顔面に
あてて毛孔を開かせ、汚物を取り出す美顔器のようなス
チーム発生器では、使用する水量が少ないのでタンク槽
63も小型でよいが、本発明のように家庭用等の少人数の
使用するサウナに使用する場合は水量も一人一回で約45
00ccとなりタンク槽63の容量が大となり装置全体が大き
くなり、さらに入浴ごとに毎回補給せねばならない問題
点がある。また水タンクを自動給水方式の開放型タンク
にすると、蒸気発生器の蒸気圧が循環管を通じて水タン
クに加わるので、水タンクの水位を蒸気圧（約0.2kgf/c
m2）相当高くせねばならず、水タンクと蒸気発生器部を
同一のブロックでコンパクトに収容できない問題点があ
った。Problems to be Solved by the Invention In such a conventional configuration, the water heating pipe is set by the burner 65.
When 61 is heated, water boils and vapor of gas-liquid mixture is generated. Then, the vapor-liquid separation cylinder 62 separates the vapor-liquid mixture, and only the vapor is further heated by the vapor heating pipe 60. In this way, when the water in the steam generator decreases due to evaporation, the steam pressure possessed by the steam generator is increased when the valve section (not shown) provided in the tank tank 63 or the water supply channel is opened to replenish the water. In order to join the tank tank 63, the tank tank 63 had to be a closed type that was shielded from the atmosphere. In addition, steam generators such as facial cleaners that use steam to apply pores to the face to open pores and take out dirt are used in a tank tank because the amount of water used is small.
63 may be small, but when it is used in a small-sized sauna for home use as in the present invention, the amount of water is about 45 per person per time.
There is a problem that it becomes 00cc and the capacity of the tank tank 63 becomes large and the entire device becomes large, and that it must be replenished each time when bathing. Also, if the water tank is an open type tank of automatic water supply system, the steam pressure of the steam generator is added to the water tank through the circulation pipe, so the water level of the water tank is adjusted to the steam pressure (about 0.2 kgf / c).
m 2 ) It has to be considerably high, and there is a problem that the water tank and the steam generator cannot be housed compactly in the same block.
さらに家庭用のスチームサウナに用いる蒸気発生装置
としては次の問題点がある。家庭用の蒸気発生装置と
して、メンテナンス不要にするためスケール付着を防止
するための自動排水機構等の掃除を必要としない機構が
付加されたものが無い。サウナ入浴後、CaやMg等が濃
縮された蒸気発生器内の水を排水するのが好ましいが、
再入浴時に給水時間がかかり、入浴準備時間が長い。
排水がスムーズでなく時間がかかると、入浴停止から次
の再入浴時までの時間が短かい場合、再給水時間に排水
時間も付加されて更に入浴準備時間が長くなる。Furthermore, there are the following problems as a steam generator used in a home steam sauna. There is no domestic steam generator to which a mechanism that does not require cleaning, such as an automatic drainage mechanism for preventing scale from adhering, is added in order to make maintenance unnecessary. After bathing in the sauna, it is preferable to drain the water in the steam generator in which Ca, Mg, etc. are concentrated,
It takes a long time to refill the bath, and the bath preparation time is long.
If the drainage is not smooth and takes a long time, and if the time from the stop of bathing to the next re-bathing is short, the drainage time is added to the re-watering time, and the bath preparation time becomes longer.
又、加熱用バーナなどの発熱量によって蒸気発生器か
ら発生する蒸気の噴出量によって、加熱時間が長いと浴
室等の室内温度が上昇し過ぎるため使用時間を制限する
か、制御器等にタイマを設けるなどの使い勝手が不便で
あった。In addition, if the heating time is long, the indoor temperature of the bathroom or the like will rise too high depending on the amount of steam ejected from the steam generator due to the amount of heat generated by the heating burner, etc. It was inconvenient to use it.
本発明は、このような上記問題点を解決するもので、
コンパクトで、且つ、スケール付着防止処理を容易にす
るとともに給排水時間の短縮でスチームサウナ等に於け
る準備時間の短縮化を図り、使い勝手のよい家庭用のス
チームサウナに適した蒸気発生装置を提供することを目
的としている。The present invention solves the above problems,
Compact and easy to prevent scale adhesion and shorten supply and drainage time to shorten the preparation time in a steam sauna, etc., and provide a steam generator suitable for a home-use steam sauna that is easy to use. Is intended.
問題点を解決するための手段 本発明は、上記問題点を解決するため、水を沸騰させ
て蒸気を発生させる蒸気発生器と、水道直結され一定水
位に制御するように給水弁を設けた開放型給水タンク
と、この開放型給水タンクと前記蒸気発生器の間に接続
し、途中に前記蒸気発生器への給水用の給水ポンプを有
する給水路と、前記開放型給水タンクの底面と前記給水
ポンプの下流の給水路の途中に接続する排水路と、その
排水路の途中に排水弁を有する排水管とを接続し、前記
蒸気発生器を加熱する加熱バーナと燃料を供給する比例
制御弁を設け、前記蒸気発生器からの蒸気を浴室内等に
吐出して加熱し、加熱する浴室内等の浴室温度（希望の
サウナ入浴温度）を設定操作する浴室コントローラを設
け、その浴室コントローラで設定された能力に相当する
燃料供給量を前記比例制御弁に指示し、かつ前記給水ポ
ンプを給水開始時には大流量、蒸気発生中には前記燃料
供給量に比例する給水流量を前記給水ポンプに指示し、
かつ運転停止時の度毎に前記排水弁を開成動作させて沸
騰水と開放型給水タンクの水を混合排水する制御器を備
えて蒸気発生装置を構成する。Means for Solving the Problems The present invention, in order to solve the above problems, has a steam generator that boils water to generate steam, and an opening provided with a water supply valve so as to be directly connected to a water supply and control a constant water level. Type water supply tank, a water supply path connected between the open type water supply tank and the steam generator, and having a water supply pump for supplying water to the steam generator in the middle, a bottom surface of the open type water supply tank, and the water supply A drainage channel connected in the middle of the water supply channel downstream of the pump and a drainage pipe having a drainage valve in the middle of the drainage channel are connected, and a heating burner for heating the steam generator and a proportional control valve for supplying fuel are provided. A bathroom controller is provided for discharging and heating the steam from the steam generator into the bathroom or the like, and setting and controlling the bathroom temperature (desired sauna bathing temperature) in the bathroom to be heated, which is set by the bathroom controller. Ability Instructing the proportional control valve the fuel supply amount, and instructing the water supply pump a large flow rate at the start of water supply of the water supply pump, a water supply flow rate proportional to the fuel supply amount during steam generation,
A steam generator is provided with a controller that opens the drain valve every time the operation is stopped to mix and drain the boiling water and the water in the open water supply tank.
作用 本発明は上記した構成により、水道直結された給水弁
と制御器により一定水位に制御される開放型給水タンク
に貯蔵された水を運転指示信号により、蒸気発生器への
給水開始時には給水ポンプを大流量で駆動して給水し、
かつ蒸気発生器を加熱するバーナを運転し、蒸気発生器
から蒸気を発生させる。また、蒸気発生時には蒸気発生
器へ水の補給を連続的に行なうとともに、給水ポンプで
加圧給水するので蒸気発生器内の蒸気圧が開放型給水タ
ンクに加わることなく、給水タンクと蒸気発生器の水位
が略同一であってもよく、コンパクトに収容できるもの
である。The present invention has the above-described configuration, and the water supply pump directly connected to the water supply and the water stored in the open-type water supply tank controlled to a constant water level by the controller by the operation instruction signal at the start of water supply to the steam generator. Is driven by a large flow rate to supply water,
In addition, the burner that heats the steam generator is operated to generate steam from the steam generator. Also, when steam is generated, water is continuously replenished to the steam generator and pressurized water is supplied by the water supply pump, so the steam pressure inside the steam generator does not add to the open type water tank, The water levels may be substantially the same and can be stored compactly.
また、蒸気発生器からの蒸気で浴室を加熱し、浴室コ
ントローラで設定した能力に応じて制御器は比例制御弁
に燃料供給量を指示し、かつこの燃料供給量に比例する
給水流量を給水ポンプに指示することにより、連続した
蒸気を浴室に供給できる。Also, the steam from the steam generator heats the bathroom, the controller instructs the proportional control valve to supply the fuel according to the capacity set by the bathroom controller, and the feed water flow rate is proportional to this fuel supply. Continuous steam can be supplied to the bathroom by instructing.
実施例 以下本発明の一実施例について、第１図の構成概略図
に従って説明する。１は蒸気発生器、２は上部を開放し
た開放型給水タンクで水道管４に給水弁３を直結し給水
管５を前記開放型給水タンク２の上部に臨ませている。Embodiment An embodiment of the present invention will be described below with reference to the schematic configuration diagram of FIG. Reference numeral 1 is a steam generator, and 2 is an open-type water supply tank having an open upper part, in which a water supply valve 3 is directly connected to a water pipe 4 so that a water supply pipe 5 faces the upper part of the open-type water supply tank 2.
前記開放型給水タンク２の内部に満水を検知する上部
水位センサ６と減水を検知する下部水位センサ７を設
け、前記給水弁３を開閉制御して一定水位以上を確保す
るように制御している。尚、前記上部水位センサ６より
やや上方に溢水管８を設けてオーバーフローさせてい
る。An upper water level sensor 6 for detecting full water and a lower water level sensor 7 for detecting reduced water are provided inside the open type water supply tank 2, and the water supply valve 3 is controlled to be opened and closed so as to ensure a certain water level or more. . An overflow pipe 8 is provided slightly above the upper water level sensor 6 to cause overflow.
前記開放型給水タンク２の底面と前記蒸気発生器１の
底面とを給水路９および途中に給水用の給水ポンプ10を
設けて接続する。The bottom surface of the open-type water supply tank 2 and the bottom surface of the steam generator 1 are connected by providing a water supply passage 9 and a water supply pump 10 for water supply in the middle.
前記蒸気発生器１の内部に給水される水の上限を検知
する上限水位センサ11と下限を検知する下限水位センサ
12を前記蒸気発生器１の側壁に設けている。又、蒸気発
生室16を有し、且つ、上部にサウナ室（浴室でもよい）
に連通接続される蒸気出口17が設けられ蒸気発生器１を
構成する。前記開放型給水タンク２の底面と前記給水ポ
ンプ10の下流の給水路９の途中に排水路18を接続して設
け、その下流に排水弁19を前記溢水管８と合流接続した
排水管20を設ける。前記蒸気発生器１を加熱するバーナ
14と燃料を供給する比例制御弁13を下部に設け、水位セ
ンサ６、７、11、12と給水弁３、給水ポンプ10、比例制
御弁13及び排水弁19に接続され、且つ、浴室等に設ける
浴室コントローラ等（図示せず）により燃料供給量と給
水流量を比例制御するように前記給水ポンプ10および比
例制御弁13を制御する機能を有する制御器15を設けて蒸
気発生装置を構成する。Upper limit water level sensor 11 for detecting the upper limit of water supplied to the inside of the steam generator 1 and lower limit water level sensor for detecting the lower limit
12 is provided on the side wall of the steam generator 1. In addition, it has a steam generation chamber 16 and a sauna room (may be a bathroom) at the top.
The steam generator 17 is provided with a steam outlet 17 which is connected to and communicates with. A drainage pipe 18 is provided by connecting a drainage pipe 18 in the middle of the bottom face of the open type water supply tank 2 and the water supply pipe 9 downstream of the water supply pump 10, and a drainage pipe 19 is connected downstream of the drainage valve 19 with the overflow pipe 8. Set up. Burner for heating the steam generator 1
14 and a proportional control valve 13 for supplying fuel are provided in the lower part, and are connected to the water level sensors 6, 7, 11, 12 and the water supply valve 3, the water supply pump 10, the proportional control valve 13 and the drain valve 19, and also in a bathroom or the like. A steam generator is configured by providing a controller 15 having a function of controlling the water supply pump 10 and the proportional control valve 13 so as to proportionally control the fuel supply amount and the water supply flow rate by a provided bathroom controller or the like (not shown).
次に動作説明を第２図〜第３図に基づき説明する。 Next, the operation will be described with reference to FIGS.
前記制御器15に設けられた運転スイッチ（図示せず）
を『入』にすると、運転指令28により先ず、給水タンク
水位判定回路21により給水タンクの水位判定29を下部水
位センサ７と上部水位センサ６で検知し、給水弁駆動回
路22を動作させ給水弁３を『開』30にし、水道水を給水
開始する。給水により満水水位WOHを上部水位センサ６
で検知すると給水弁３を『閉』31し、減水水位WOLを下
部水位センサ７で検知すると、（水位判定29により）再
度、給水弁『開』30と給水弁『閉』31のシーケンスを繰
り返し、前記開放型給水タンク２の水位を一定水位以上
を確保するように制御される。Operation switch (not shown) provided in the controller 15
When “ON” is set, the water level judgment circuit 21 detects the water level 29 of the water tank with the lower water level sensor 7 and the upper water level sensor 6, and the water supply valve drive circuit 22 is operated to operate the water supply valve. Set 3 to "Open" 30 and start supplying tap water. When the water is supplied, the full water level W OH is changed to the upper water level sensor 6
When the water supply valve 3 is "closed" 31 and the lower water level W OL is detected by the lower water level sensor 7, the sequence of the water supply valve "open" 30 and the water supply valve "closed" 31 is detected again (by the water level judgment 29). Repeatedly, the water level of the open type water supply tank 2 is controlled so as to ensure a certain level or more.
又、前記開放型給水タンク２への給水と同時に蒸気発
生器水位判定回路24により、蒸気発生器水位判定32で蒸
気発生器１内の上限水位WHに到達するまでは給水ポンプ
駆動回路23が動作し、給水ポンプ『ON』〈大流量〉33で
給水タンク２に貯蔵された水を加圧供給する。上限水位
センサ11が上限水位WHを検知すると、給水ポンプ『OF
F』34で給水ポンプ10を停止する。と同時に比例制御弁
駆動回路25により比例制御弁13を比例制御弁『ON』35で
開弁し燃料に点火させ加熱バーナ14の着火を着火検出36
で確認し燃焼を継続させ、前記蒸気発生器１の下部に貯
水された水を前記加熱バーナ14で加熱することにより、
水が沸騰すると蒸気発生37が蒸気発生室16で生じ、充満
した蒸気が蒸気出口17に供給される。Also, the water supply and the steam generator water level decision circuit 24 simultaneously to the open water tank 2, a steam generator water level decision 32 until it reaches the upper water level W H of the steam generator 1 is a water supply pump driving circuit 23 It operates and pressurizes and supplies the water stored in the water supply tank 2 with the water supply pump "ON"<large flow rate> 33. When the upper water level sensor 11 detects the upper water level W H , the water supply pump “OF
Stop the water supply pump 10 at F34. At the same time, the proportional control valve drive circuit 25 opens the proportional control valve 13 with the proportional control valve “ON” 35 to ignite the fuel and detect the ignition of the heating burner 14
By confirming with, the combustion is continued, and the water stored in the lower portion of the steam generator 1 is heated by the heating burner 14,
When the water boils, steam generation 37 occurs in the steam generation chamber 16, and the filled steam is supplied to the steam outlet 17.
この蒸気出口17に接続された配管を家庭用の浴室やシ
ャワールームやサウナ室等に導き、室内に臨ませると送
られてきた蒸気の持つ熱により室内温度が上昇するとと
もに蒸気による高湿度のウェットサウナとして活用でき
る。Guide the pipe connected to this steam outlet 17 to a bathroom, shower room, sauna room, etc. for home use, and when facing the room, the heat of the steam sent raises the room temperature and wets the steam with high humidity. Can be used as a sauna.
加熱バーナ14により加熱され蒸気発生することによ
り、蒸気発生器１内の水が減少してくると、下限水位WL
を下限水位センサ12が蒸気発生器水位判定回路24により
蒸気発生器水位判定38で検知すると給水ポンプ駆動回路
23が動作して給水ポンプ『ON』〈少流量〉39で給水ポン
プ10を蒸気圧に打ち勝つ圧力で加圧給水し、上限水位WH
を上限水位センサ11で検知すると給水ポンプ『OFF』40
で給水ポンプ10を停止する。このように蒸気発生時には
給水ポンプ10を少流量で加圧給水することにより、連続
的に蒸気発生を継続することが出来る。When the water in the steam generator 1 decreases due to the generation of steam by heating with the heating burner 14, the lower limit water level W L
When the lower limit water level sensor 12 is detected by the steam generator water level judgment circuit 24 by the steam generator water level judgment 38, the feed pump drive circuit
23 operates and feed water pump “ON” <small flow rate> 39 feeds water feed pump 10 with pressure that overcomes steam pressure and supplies water under pressure to reach upper water level W H
When the upper limit water level sensor 11 detects the water supply pump “OFF” 40
Stop water supply pump 10 at. As described above, when steam is generated, the steam can be continuously generated by supplying water under pressure with the water supply pump 10 at a small flow rate.
ここで、連続して蒸気発生41することによって浴室内
の室温が上昇し過ぎないように浴室等に設けられた浴室
コントローラーで第２図に示す能力制御回路26を例えば
能力調整ボリューム等を操作して能力可変42をすると、
能力制御回路26の信号により比例制御弁13が比例制御弁
制御43と燃料供給量制御44により、燃料供給量が調整さ
れ加熱バーナ14の加熱による蒸気発生量を制限すること
が出来、室温上昇を制御することが可能となる。又、能
力制御回路26の信号により蒸気発生器水位判定45で上限
水位WHと下限水位WLを水位センサ11と12で検知して、給
水ポンプ10を給水ポンプ制御46と給水流量制御47によ
り、燃料供給量に比例した給水流量を加圧給水して、加
熱による蒸気発生量に比例した給水をすることにより、
連続した蒸気発生を得ることが出来る。前述のように給
水ポンプ10は、給水開始時には大流量で加圧給水し、蒸
気発生時には燃料供給量に比例した給水流量で加圧給水
するように、制御器15内の能力制御回路26と比例制御弁
駆動回路25と給水ポンプ駆動回路23とが動作するように
構成されている。Here, in order to prevent the room temperature in the bathroom from rising too much due to continuous steam generation 41, the capacity control circuit 26 shown in FIG. If you change the ability 42,
The proportional control valve 13 is controlled by the signal of the capacity control circuit 26 by the proportional control valve control 43 and the fuel supply amount control 44 so that the fuel supply amount is adjusted and the amount of steam generated by the heating of the heating burner 14 can be limited, thereby increasing the room temperature. It becomes possible to control. Further, the upper limit water level WH and the lower limit water level W L are detected by the water level sensors 11 and 12 in the steam generator water level determination 45 by the signal of the capacity control circuit 26, and the water supply pump 10 is controlled by the water supply pump control 46 and the water supply flow rate control 47. By supplying water under pressure with a supply flow rate proportional to the fuel supply amount and supplying water in proportion to the steam generation amount due to heating,
It is possible to obtain continuous steam generation. As described above, the water supply pump 10 is proportional to the capacity control circuit 26 in the controller 15 so that pressurized water is supplied at a large flow rate at the start of water supply and pressurized water is supplied at a water supply rate proportional to the fuel supply rate when steam is generated. The control valve drive circuit 25 and the water supply pump drive circuit 23 are configured to operate.
前記給水ポンプ10は、前述の下限水位WLから上限水位
WHに回復させる加圧給水機能を有するため、前記加熱バ
ーナ14の最大加熱時において蒸発する単位時間当たりの
最大蒸発水量ＱOよりも、大きな給水量Ｑを、そして前
記蒸気発生器１の被加熱部（水）に作用する蒸気圧力PO
よりも大きな給水圧力Ｐで加圧給水出来る能力を持って
いる。The water supply pump 10 has a lower water level W L to an upper water level.
Since it has a pressurized water supply function for recovering to WH , it supplies a larger amount of water Q than the maximum amount of evaporated water Q O per unit time that evaporates at the time of maximum heating of the heating burner 14 and the steam generator 1 Steam pressure P O acting on the heating part (water)
It has the ability to supply pressurized water with a larger water supply pressure P.
但し、給水圧力Ｐ及び給水量Ｑの能力は、蒸気圧力PO
及び最大蒸発水量ＱOより余り大き過ぎると、下限水位W
Lから上限水位WHへの回復時間が短時間過ぎて、被加熱
部の沸騰している湯が低温の補給水と混合し、急激に湯
温が低下するため、この温度を沸騰温度まで上昇加熱さ
せる時間を要し、この間蒸気の発生が著しく低下するの
で好ましくない。このため、給水ポンプ10の能力を考慮
して給水ポンプ駆動回路23によって、例えば電圧制御や
PWM制御及びVVVFインバータ制御等の方法によって、能
力可変制御することにより、給水圧力Ｐ及び給水量Ｑが
蒸気圧力Po及び最大蒸気水量Qoより過大にならないよう
に給水ポンプの給水量を小流量で加圧給水するように設
定すれば、補給水による被加熱部の沸騰水が補給水によ
り適度に混合されることがなく、沸騰水を急激な温度低
下をさせることなく、その水補給時における蒸気発生量
の低減量を少なくし、安定した蒸気発生を連続的に噴出
させることができる有効な制御方法である。このことに
よって、蒸気発生時には給水ポンプ10を燃料供給量に比
例した給水流量で制御するとともに、給水開始時には大
流量で制御することが出来るので、運転スイッチを
『入』にしてから蒸気発生器１内に給水する時間を短縮
することが出来、蒸気発生までの立上り時間をスピーデ
ィにすることが出来る。又、能力調整によって浴室内の
室温上昇を制御することが出来るので快適なウェットサ
ウナ入浴が出来る。However, the capacity of the water supply pressure P and the water supply amount Q is the steam pressure P O
And if it is too much larger than the maximum amount of evaporated water Q O , the lower limit water level W
Past recovery time from L to an upper limit water level W H is short, since the boiling water of the heated portion is mixed with the cold makeup water, rapidly water temperature drops, increasing the temperature to the boiling temperature It takes time for heating, and the generation of steam during this period is significantly reduced, which is not preferable. Therefore, in consideration of the capacity of the water supply pump 10, for example, voltage control or
By controlling the capacity by methods such as PWM control and VVVF inverter control, the feed water amount of the feed water pump can be increased at a small flow rate so that the feed water pressure P and the feed water amount Q do not exceed the steam pressure Po and the maximum steam water amount Qo. If it is set to supply water under pressure, the boiling water in the heated part due to the makeup water will not be mixed properly with the makeup water, and the boiling water will not generate a sudden temperature drop, and steam will be generated during the water supply. This is an effective control method that can reduce the amount of reduction and continuously eject stable steam generation. As a result, the water supply pump 10 can be controlled at a water supply flow rate proportional to the fuel supply amount at the time of steam generation and at a large flow rate at the start of water supply. The time to supply water can be shortened, and the rise time until steam generation can be speeded up. In addition, it is possible to control a rise in room temperature in the bathroom by adjusting the ability, so that a comfortable wet sauna bath can be taken.
このように前記加熱バーナ14の燃焼により連続して蒸
気を発生させることが出来るが、給水される水道水に含
まれるCaやMgは一部は蒸気に含有され噴出されるが、そ
の大部分は前記蒸気発生器１内に残留し長時間の使用に
おいては、前記蒸気発生器１内に残留された湯（水）
は、そのままの状態であると運転の都度、CaやMgが漸次
濃縮され極めて濃度の高い硬水となり、前記蒸気発生器
１の蒸気発生室16や蒸気出口17や貯水される蒸気発生器
１の内壁にスケールとして付着し、加熱バーナ14の燃焼
熱を十分熱交換出来なくなり、蒸気発生量が次第に低下
したり、蒸気配管がスケール付着により目詰りを生ずる
等、蒸気発生装置としての機能を発揮出来なくなること
がある。そこでこの問題を除去するため、出来るだけ短
時間の水の濃縮状態で水を排水するように、サウナの一
般的な入浴時間である約10〜15分程度の時間を考慮し
て、予め前記制御器15で設定された内蔵タイマやこのタ
イマ設定時間内に入浴を終了して蒸気発生中に運転スイ
ッチを『切』にすると、運転停止指令48により運転停止
信号が制御器15に出されると、比例制御弁13が比例制御
弁『OFF』49で閉弁され加熱バーナ14の燃焼が停止する
とともに、排水弁駆動回路27が動作して排水弁『ON』50
で排水弁19が開弁し、蒸気発生器１内の湯（水）と開放
型給水タンクに貯蔵された水を一気に排水路18を通して
排水管20に排出される。前記排水弁駆動回路27に内蔵さ
れた排水タイマ設定時間51になると、排水弁『OFF』52
で閉弁され運転が停止53する。次に再入浴する場合は、
再度運転スイッチを『入』にすることにより、最初のシ
ーケンスから開始し、給水ポンプ10を大流量で加圧給水
して蒸気発生をスピーディに行なうことが出来る。この
ようにサウナ入浴の都度に給排水を短時間に行ない、給
水に含有されるCaやMg等が加熱濃縮されて前記蒸気発生
器１内の底部に沈澱することを避け、又、浮遊して前記
蒸気発生器１の内壁にスケール付着することを防止する
とともに、入浴準備時間を短時間にすることが出来る。As described above, it is possible to continuously generate steam by combustion of the heating burner 14, but Ca and Mg contained in the tap water to be supplied are partly contained in the steam and ejected, but most of them are Hot water that remains in the steam generator 1 and remains in the steam generator 1 for long-term use.
Is a state in which the Ca and Mg are gradually concentrated into hard water having an extremely high concentration each time it is operated, and the steam generation chamber 16 and the steam outlet 17 of the steam generator 1 and the inner wall of the steam generator 1 for storing water As a scale, the heat of combustion of the heating burner 14 cannot be sufficiently exchanged, the amount of steam generation gradually decreases, and the steam pipe becomes clogged due to scale adherence, so that it cannot function as a steam generator. Sometimes. Therefore, in order to eliminate this problem, in order to drain the water in a concentrated state of water for the shortest possible time, considering the time of about 10 to 15 minutes, which is a general bathing time of a sauna, the above-mentioned control is performed in advance. If you turn off the operation switch during the steam generation and the built-in timer set in the device 15 or this timer setting time, when the operation stop signal is issued to the controller 15 by the operation stop command 48, The proportional control valve 13 is closed by the proportional control valve “OFF” 49, the combustion of the heating burner 14 is stopped, and the drain valve drive circuit 27 operates to drain the drain valve “ON” 50.
Then, the drain valve 19 is opened, and the hot water (water) in the steam generator 1 and the water stored in the open type water supply tank are immediately discharged to the drain pipe 20 through the drain passage 18. When the drain timer set time 51 built in the drain valve drive circuit 27 is reached, the drain valve “OFF” 52
The valve is closed at and the operation stops. The next time you take a bath again,
By turning on the operation switch again, starting from the first sequence, the water supply pump 10 can be pressurized and supplied with a large flow rate to rapidly perform steam generation. In this way, water is drained and drained in a short time each time the sauna is bathed, and Ca and Mg contained in the water are prevented from being heated and concentrated and settling at the bottom of the steam generator 1, or floating and floating. It is possible to prevent scale from adhering to the inner wall of the steam generator 1 and shorten the bath preparation time.
又、排水時の排水は前述のようにCaやMg等を多量に含
んだスケール分が沈澱付着しやすい水質のため、できる
だけ前記排水路18及び前記排水管20へのスケール付着に
よる目詰りを防止する目的で前記開放型給水タンク２内
の水と混合し濃度を低下させて排水することが望まし
く、このため前記排水路18より排水される水と前記蒸気
発生器１内の湯を前記給水路９を通して混合後排水され
るように前記排水路18と前記排水弁19及び前記排水管20
を構成してある。そして、水質濃度を低下させると同時
に、沸騰状態の前記蒸気発生器１内の湯（高温水）を直
接排水することによる危険を防止し、前記開放型給水タ
ンク２内の水と混合排水することによって、排水の温度
を低下させることも出来、前記排水弁19の耐熱温度も低
下させることが出来る。又、装置内の水は全て排水され
るので冬期などの気温低下時の凍結防止装置も不要とな
る。In addition, as described above, since the scale of water containing a large amount of Ca, Mg, etc. tends to settle and deposit in the drainage, the clogging of the drainage channel 18 and the drainage pipe 20 due to scale deposition is prevented as much as possible. For this purpose, it is desirable to mix the water in the open-type water supply tank 2 to reduce the concentration and then drain the water. Therefore, the water drained from the drainage channel 18 and the hot water in the steam generator 1 are fed to the water supply channel. 9. The drainage channel 18, the drainage valve 19, and the drainage pipe 20 so that they are drained after being mixed through 9.
Is configured. Then, at the same time as reducing the water quality concentration, the danger caused by directly draining hot water (high-temperature water) in the steam generator 1 in a boiling state is prevented, and the water in the open-type water supply tank 2 is mixed and drained. Thus, the temperature of the drainage can be lowered, and the heat resistant temperature of the drainage valve 19 can also be lowered. Further, since all the water in the device is drained, a freeze prevention device when the temperature drops such as in winter becomes unnecessary.
一般に家庭用の浴室やシャワールームやサウナ室内に
蒸気を噴出させ、ウェットサウナとして使用する場合
は、浴室等の広さ（約3.3m2）から考えると、単位時間
当たりの水の蒸気としての蒸発量は、100〜300cc/分程
度（6000〜18000cc/h）である。又、蒸気圧力も蒸気発
生時の安全性を考慮して蒸気発生器１から浴室等の蒸気
噴出口に至る蒸気配管経路には閉止弁を設けないので、
0.2〜0.5Kgf/cm2程度なので給水ポンプ10の選定は小型
のものでよい。In general, when steam is spouted into a bathroom, shower room, or sauna room for home use and used as a wet sauna, considering the size of the bathroom (approximately 3.3 m 2 ), evaporation of water per unit time as steam The amount is about 100-300cc / min (6000-18000cc / h). Also, in consideration of the safety of steam pressure when steam is generated, a stop valve is not provided in the steam piping path from the steam generator 1 to the steam outlet of a bathroom or the like.
Since the water supply pump 10 is about 0.2 to 0.5 Kgf / cm 2, the water supply pump 10 may be small.
但し、蒸気発生中は蒸気発生器１の蒸気圧力が常に給
水ポンプ10を経て開放型給水タンク２に加わるので、給
水ポンプ10が停止している時の逆圧力耐性によっては、
逆止弁等を給水ポンプ10に内蔵するか排水路18の途中に
設け、蒸気圧力が開放型給水タンクに直接加わることを
防止することが望ましい。However, since the steam pressure of the steam generator 1 is constantly applied to the open type water tank 2 via the water supply pump 10 during steam generation, depending on the reverse pressure resistance when the water supply pump 10 is stopped,
It is desirable that a check valve or the like be built in the water supply pump 10 or provided in the middle of the drainage channel 18 to prevent the steam pressure from being directly applied to the open type water supply tank.
又、給水タンク２内の満水と減水を検知する上部水位
センサ６及び下部水位センサ７で一定水位以上を確保し
ており給水ポンプ10で加圧給水するので、蒸気発生器１
の上限水位WHと略同一レベルまでコンパクトに収容する
ことが出来る。Further, since the upper water level sensor 6 and the lower water level sensor 7 for detecting fullness and low water level in the water supply tank 2 have secured a certain level or more and the water supply pump 10 supplies pressurized water, the steam generator 1
It can be compactly housed until the upper water level W H substantially the same level.
一般的にウェットサウナの入浴時間は、通常の使用状
態で一回当たり約10〜15分程度であり、冬期には最大30
0cc/分×15分＝4,500ccの水を蒸気発生器１から蒸発さ
せるだけで良いので、蒸気発生器１の被加熱部の貯水量
は、加熱バーナ14の燃焼熱量が10,000〜13,000kcal/hあ
れば良いので、約500〜1000cc程度の容量で良く蒸気発
生器１も小型で良い。Generally, the bathing time of a wet sauna is about 10 to 15 minutes each time under normal use, and the maximum bathing time is 30 in winter.
Since 0cc / min x 15min = 4,500cc of water need only be evaporated from the steam generator 1, the amount of water stored in the heated part of the steam generator 1 is 10,000-13,000kcal / h when the combustion heat of the heating burner 14 is 10,000-13,000kcal / h. Since it is sufficient if the capacity is about 500 to 1000 cc, the steam generator 1 can be small.
本発明のような蒸気発生装置として、ガスを熱源とす
る場合は一般的なガス給湯機の６〜９号程度（１号は通
常１リットル／分を25℃上昇させる能力＝25℃×１リッ
トル／分×60分＝1500kcal/h）の器具と同程度に小型化
が図れる利点があり、又、入浴者も複数となると更に給
水量が増えるので本発明のように自動給水することによ
り従来の美顔器等のようなカセット式タンクが空になっ
た都度人手で補水する不便を解消できるものである。When a gas is used as a heat source as a steam generator such as the present invention, a general gas water heater of about 6 to 9 (No. 1 is usually capable of increasing 1 liter / min by 25 ° C. = 25 ° C. × 1 liter) (/ Min x 60 min = 1500 kcal / h), which has the advantage that it can be made as compact as a device, and when there are multiple bathers, the amount of water supply will further increase. It is possible to eliminate the inconvenience of manually replenishing water every time a cassette type tank such as a facial device is emptied.
本実施例では、運転停止時に排水弁駆動回路27で排水
弁19を開弁した後、排水タイマ設定時間51になると排水
弁19を閉弁する方法にしているが、排水弁駆動回路27を
運転時には排水弁19を閉弁し停止時には排水弁19を開弁
動作させる単純動作にする方法でもよい。In this embodiment, after the drain valve drive circuit 27 opens the drain valve 19 when the operation is stopped, the drain valve 19 is closed when the drain timer setting time 51 is reached, but the drain valve drive circuit 27 is operated. Sometimes, the drain valve 19 may be closed and the drain valve 19 may be opened when stopped.
以上のように本発明は、水を沸騰させて蒸気を発生さ
せる蒸気発生器と、水道直結され一定水位に制御するよ
うに給水弁を設けた開放型給水タンクと、この開放型給
水タンクと前記蒸気発生器の間に接続し、途中に前記蒸
気発生器への給水用の給水ポンプを有する給水路と、前
記開放型給水タンクの底面と前記給水ポンプの下流の給
水路の途中に接続する排水路と、その排水路の途中に排
水弁を有する排水管とを接続し、前記蒸気発生器を加熱
する加熱バーナーと燃料を供給する比例制御弁を設け、
前記蒸気発生器からの蒸気を浴室内等に吐出して加熱
し、加熱する浴室内等の浴室温度（希望のサウナ入浴温
度）を設定操作する浴室コントローラを設け、その浴室
コントローラで設定された能力に相当する燃料供給量を
前記比例制御弁に指示し、かつ、前記給水ポンプを給水
開始時には大流量、蒸気発生中には前記燃料供給量に比
例する給水流量を前記給水ポンプに指示し、かつ運転停
止時の度毎に前記排水弁を開成動作させて沸騰水と開放
型給水タンクの水を混合排水する制御器を備えることに
より次のような効果を有する。As described above, the present invention is a steam generator that boils water to generate steam, an open type water supply tank provided with a water supply valve so as to be directly connected to the water supply and control at a constant water level, the open type water supply tank, and A water supply channel connected between the steam generators and having a water supply pump for supplying water to the steam generator, a drainage connected to the bottom surface of the open type water tank and a water supply channel downstream of the water supply pump. And a drainage pipe having a drainage valve in the middle of the drainage line, a heating burner for heating the steam generator and a proportional control valve for supplying fuel,
A bathroom controller for setting and operating the bathroom temperature (desired sauna bathing temperature) in the bathroom to be heated by discharging the steam from the steam generator into the bathroom or the like, and the capacity set by the bathroom controller To the proportional control valve, and to instruct the water supply pump a large flow rate at the start of water supply of the water supply pump, and a water supply flow rate proportional to the fuel supply quantity during steam generation, and The following effects can be obtained by providing a controller that opens and operates the drain valve every time the operation is stopped to mix and drain the boiling water and the water in the open type water supply tank.
蒸気発生器への給水を水道直結した開放型給水タンク
より給水ポンプを介して給水路より加圧給水する自動補
給方式で構成しているので、蒸気発生中にも給水が自動
補給できるとともに、給水ポンプで加圧給水することに
より、沸騰水と補給水が適度に混合されることがないの
で沸騰水の温度を急激に低下させることなく、水補給時
における蒸気発生量の低減量を少なくし、安定した蒸気
発生を連続的に噴出させることができるので、家庭の浴
室やシャワールーム等をウェットサウナ室として活用で
きる家庭用のスチームサウナに最適な蒸気発生装置であ
る。The water supply to the steam generator is made up of an automatic replenishment system that pressurizes water from the water supply channel via a water supply pump from an open water supply tank directly connected to the water supply, so that water can be automatically replenished while steam is being generated. By supplying water under pressure with a pump, the boiling water and the makeup water are not mixed appropriately, so the temperature of the boiling water is not drastically decreased, and the amount of steam generated during water supply is reduced. Since stable steam can be continuously ejected, it is an optimal steam generator for a domestic steam sauna that can be used as a wet sauna room such as a bathroom or shower room at home.
第１図は本発明の一実施例を示す蒸気発生装置の構成概
略図、第２図は同制御器の構成概略図、第３図は同制御
器の動作フローチャート、第４図 第５図は従来例の構
成概略図である。 １……蒸気発生器、２……開放型給水タンク、３……給
水弁、９……給水路、10……給水ポンプ、13……比例制
御弁、14……加熱バーナ、15……制御器、18……排水
路、19……排水弁。FIG. 1 is a schematic configuration diagram of a steam generator showing an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of the same controller, FIG. 3 is an operation flowchart of the same controller, and FIG. 4 and FIG. It is a schematic diagram of a configuration of a conventional example. 1 ... Steam generator, 2 ... Open water tank, 3 ... Water valve, 9 ... Water channel, 10 ... Water pump, 13 ... Proportional control valve, 14 ... Heating burner, 15 ... Control Vessel, 18 ... drainage channel, 19 ... drain valve.
Claims (1)
と、水道直結され一定水位に制御するように給水弁を設
けた開放型給水タンクと、この開放型給水タンクと前記
蒸気発生器の間に接続し、途中に前記蒸気発生器への給
水用の給水ポンプを有する給水路と、前記開放型給水タ
ンクの底面と前記給水ポンプの下流の給水路の途中に接
続する排水路と、その排水路の途中に排水弁を有する排
水管とを接続し、前記蒸気発生器を加熱する加熱バーナ
と燃料を供給する比例制御弁を設け、前記蒸気発生器か
らの蒸気を浴室内等に吐出して加熱し、加熱する浴室内
等の浴室温度（希望のサウナ入浴温度）を設定操作する
浴室コントローラを設け、その浴室コントローラで設定
された能力に相当する燃料供給量を前記比例制御弁に指
示し、かつ前記給水ポンプを給水開始時には大流量、蒸
気発生中には前記燃料供給量に比例する給水流量を前記
給水ポンプに指示し、かつ運転停止時の度毎に前記排水
弁を開成動作させて沸騰水と開放型給水タンクの水を混
合排水する制御器を備えた蒸気発生装置。1. A steam generator which boils water to generate steam, an open type water supply tank which is directly connected to a water supply and which is provided with a water supply valve for controlling a constant water level, the open type water supply tank and the steam generator. A water supply path connected to the steam generator, a water supply path having a water supply pump for supplying water to the steam generator, a drainage path connected to a bottom surface of the open type water supply tank and a water supply path downstream of the water supply pump. A drain pipe having a drain valve is connected in the middle of the drain passage, a heating burner for heating the steam generator and a proportional control valve for supplying fuel are provided, and the steam from the steam generator is discharged into a bathroom or the like. A bathroom controller for setting and operating the bathroom temperature (desired sauna bathing temperature) in the bathroom to be heated is provided, and the proportional control valve is instructed to supply the fuel corresponding to the capacity set by the bathroom controller. And the above salary A large flow rate is supplied to the pump at the start of water supply, and a flow rate of the water supply proportional to the fuel supply amount is instructed to the water supply pump during steam generation, and the drain valve is opened to open the boiling water every time the operation is stopped. Generator equipped with a controller that mixes and drains the water from the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003514A JP2548158B2 (en) | 1987-01-09 | 1987-01-09 | Steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003514A JP2548158B2 (en) | 1987-01-09 | 1987-01-09 | Steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63172804A JPS63172804A (en) | 1988-07-16 |
| JP2548158B2 true JP2548158B2 (en) | 1996-10-30 |
Family
ID=11559469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62003514A Expired - Fee Related JP2548158B2 (en) | 1987-01-09 | 1987-01-09 | Steam generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548158B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058960A (en) * | 2018-08-20 | 2018-12-21 | 东莞市舜尧能源科技有限公司 | The method of superheated steam is generated under a kind of steam generation facility and condition of normal pressure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140933Y2 (en) * | 1972-08-15 | 1976-10-06 | ||
| JPS56144303A (en) * | 1980-04-14 | 1981-11-10 | Fukashi Shimizu | Steam boiler |
| JPS5918303A (en) * | 1982-07-21 | 1984-01-30 | 三菱重工業株式会社 | Method of controlling steam generator |
| JPS61106702U (en) * | 1984-12-14 | 1986-07-07 | ||
| JPH0424247Y2 (en) * | 1985-02-08 | 1992-06-08 | ||
| JPS61243202A (en) * | 1985-04-19 | 1986-10-29 | 日本鋼管株式会社 | Method and device for controlling boiler |
-
1987
- 1987-01-09 JP JP62003514A patent/JP2548158B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63172804A (en) | 1988-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |