JPH0624646Y2 - Steam generator - Google Patents
Steam generatorInfo
- Publication number
- JPH0624646Y2 JPH0624646Y2 JP4581389U JP4581389U JPH0624646Y2 JP H0624646 Y2 JPH0624646 Y2 JP H0624646Y2 JP 4581389 U JP4581389 U JP 4581389U JP 4581389 U JP4581389 U JP 4581389U JP H0624646 Y2 JPH0624646 Y2 JP H0624646Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water level
- evaporation tank
- water supply
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は暖房あるいはサウナ浴等に用いられる蒸気発生
器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a steam generator used for heating or a sauna bath.
（従来の技術） 先に本件出願人は、蒸発槽内でのスケールの析出防止並
びに蒸発槽内喫水部の洗浄を主たる目的として、実願昭
６３−３２４１９号（実開平０１−１３６２１４号公報
参照）において第３図に示す蒸気発生器を提案した。こ
の蒸気発生器では、蒸気発生停止操作により、給水弁
（Ａ）を開弁せしめて給水槽（Ｂ）内に設定水位（C1）
以上の水位（C2）迄給水した後、給水弁（Ａ）を閉弁す
ると共に排水弁（Ｄ）を開弁させ、よって蒸発槽（Ｅ）
内での喫水部の洗浄とスケール成分が濃縮された水を排
出することによるスケール析出の防止を行っている。(Prior Art) The applicant of the present application has previously described Japanese Patent Application No. Sho 63-32419 (see Japanese Utility Model Laid-Open No. 01-136214) for the main purpose of preventing scale deposition in the evaporation tank and cleaning the draft section in the evaporation tank. ) Proposed a steam generator as shown in FIG. In this steam generator, when the steam generation is stopped, the water supply valve (A) is opened and the set water level (C1) is set in the water supply tank (B).
After supplying water to the above water level (C2), the water supply valve (A) is closed and the drainage valve (D) is opened, so that the evaporation tank (E)
It is intended to prevent scale precipitation by cleaning the draft part inside and discharging the water in which the scale component is concentrated.
（考案が解決しようとする課題） しかるに第３図に示した蒸気発生器では、給水槽（Ｂ）
と蒸発槽（Ｅ）とが同一高さに設置され、給水槽（Ｂ）
から蒸発槽（Ｅ）への給水は両槽間の水頭差で行われる
ものである為、両槽の配置に自由度がなくて蒸気発生器
の小型化に限度があり、又蒸気発生中には蒸気配管抵抗
が蒸発槽（Ｅ）水面に作用して、水位低下時の補水が困
難であり、加えて蒸気発生停止時には停止が指示されて
も蒸気発生が即座に停止しないので、上記と同じ理由に
より蒸発槽（Ｅ）の水位を設定水位以上に上昇させるの
に長時間要する問題がある。(Problems to be solved by the invention) However, in the steam generator shown in FIG. 3, the water tank (B)
And evaporation tank (E) are installed at the same height, and water tank (B)
Since the water supply from the tank to the evaporation tank (E) is performed by the head difference between both tanks, there is no freedom in the arrangement of both tanks, and there is a limit to the miniaturization of the steam generator. Is the same as above because steam piping resistance acts on the water surface of the evaporation tank (E), making it difficult to replenish water when the water level drops, and in addition, when the steam generation is stopped, steam generation does not stop immediately even if a stop is instructed. Due to the reason, there is a problem that it takes a long time to raise the water level in the evaporation tank (E) above the set water level.
（課題を解決するための手段） 本考案は以上に述べた課題を解決せんとしたものであ
り、そのために本考案では上部に蒸気供給路を、下部に
排水弁を介設した排水路を接続した蒸発槽と、蒸発槽と
接続した水位検出装置と、蒸発槽並びに水位検出装置に
接続され給水時所定圧力で給水を行う給水路とを備え
て、蒸気発生中、蒸発槽内水位を設定水位に保持せしめ
ると共に、蒸気発生停止後蒸発槽内水位を上記設定水位
以上の水位に上昇させた後、排水弁を開弁せしめる制御
手段を設けた構成としてある。(Means for Solving the Problems) The present invention is intended to solve the above-mentioned problems. Therefore, in the present invention, a steam supply passage is connected to the upper portion and a drain passage having a drain valve is connected to the lower portion. The evaporation tank, a water level detection device connected to the evaporation tank, and a water supply channel connected to the evaporation tank and the water level detection device to supply water at a predetermined pressure when water is supplied, set the water level in the evaporation tank during steam generation. And a control means for opening the drain valve after raising the water level in the evaporation tank to a water level above the set water level after the steam generation is stopped.
（作用） 上記構成によれば、蒸気発生中、蒸発槽内の水位が低下
すると、水位検出装置がその水位低下を検出して所定圧
力で蒸発槽への給水を設定水位に上昇するまで行う。(Operation) According to the above configuration, when the water level in the evaporation tank decreases during steam generation, the water level detection device detects the decrease in water level and performs water supply to the evaporation tank at a predetermined pressure until the water level rises to the set water level.
又、蒸気発生停止操作後には、排水前に蒸発槽内の水位
を設定水位以上の水位に上昇させる際にも、上記と同様
に、所定圧力で給水し、その後排水弁が開弁されて、排
水が行われるのである。Also, after the steam generation stop operation, when raising the water level in the evaporation tank to a water level equal to or higher than the set water level before draining, similarly to the above, water is supplied at a predetermined pressure, and then the drain valve is opened, The drainage is done.
（実施例） 第１図は本考案の一実施例を示す全体概略構成図、第２
図は本考案の他の実施例を示す部分概略構成図である。(Embodiment) FIG. 1 is an overall schematic configuration diagram showing an embodiment of the present invention, and FIG.
The figure is a partial schematic diagram showing another embodiment of the present invention.
第１図において、（１）は蒸発槽、（２）は蒸発槽
（１）と下部を給水路（３）により連通し、上部を連通
路（４）により連通した水位検出装置で、水位検出装置
（２）にはバーナ（５）の着火を可能とする下段水位
（L1）を検出するフロートスイッチ（2a）、給水停止水
位である中段水位（L2）を検出するフロートスイッチ
（2b）、蒸気発生停止後に実行される排水前の給水水位
である上段水位（L3）を検出するフロートスイッチ（2
c）を夫々内蔵してある。給水路（３）には上流側から
給水槽（６）、給水ポンプ（７）、給水弁（８）を介設
してあり、給水槽（６）には市水が、給水槽（６）内に
設けた水位検出装置（９）の水位低下検出により給水元
弁（10）が開弁することで供給される。（11）は排水路
であり、排水弁（12）を介設してある。（13）は蒸気供
給路で、浴室（14）内に設けた噴出口（15）と接続され
る。（16）は電源スイッチ（16a）と蒸気発生の開始と
停止を指示する運転スイッチ（16b）とを備えた操作器
で、蒸気発生器（17）内の制御回路（18）と信号線で接
続されている。In FIG. 1, (1) is an evaporating tank, (2) is a water level detecting device in which the evaporating tank (1) and the lower part are connected by a water supply passage (3) and the upper part is connected by a communicating passage (4). The device (2) has a float switch (2a) that detects the lower water level (L1) that enables the burner (5) to ignite, a float switch (2b) that detects the middle water level (L2) that is the water stoppage level, and steam. Float switch (2) that detects the upper water level (L3), which is the water supply level before drainage that is executed after the outbreak
c) is built in each. A water supply tank (6), a water supply pump (7), and a water supply valve (8) are provided in the water supply passage (3) from the upstream side, and city water is supplied to the water supply tank (6) and a water supply tank (6). It is supplied by opening the water supply source valve (10) when the water level detection device (9) provided inside detects the water level drop. The drainage channel (11) is provided with a drainage valve (12). Reference numeral (13) is a steam supply passage, which is connected to the jet port (15) provided in the bathroom (14). (16) is an operating device equipped with a power switch (16a) and an operation switch (16b) for instructing start and stop of steam generation, and is connected to a control circuit (18) in the steam generator (17) by a signal line. Has been done.
尚、本実施例では、給水路（３）の上流側に給水槽
（６）を設けて、給水槽（６）により市水と縁切りしか
つ給水ポンプ（７）のポンプ圧で給水しているが、第２
図に示すように給水槽（６）並びに給水ポンプ（７）を
省略して、市水を供給する水道管（19）と給水路（３）
とを直結するようにして水道圧で給水してもよい。尚、
その場合には、蒸発槽（１）の上段水位（L3）よりも上
方に位置する真空破壊弁（20）を介設する必要がある。
（21）は逆止弁である。又蒸発槽（１）の加熱手段とし
ては、バーナ（５）以外に電気ヒータを用いてもよいも
のである。以上の構成において、操作器（16）の電源ス
イッチ（16a）を投入すると、先ず給水槽（６）内に所
定水位になるまで給水され、次に給水弁（８）が開弁す
ると共に給水ポンプ（７）が駆動して、蒸発槽（１）並
びに水位検出装置（２）に給水が開始される。給水によ
り蒸発槽（１）内の水位が上昇して中段水位（L2）に達
すれば、給水弁（８）が閉弁すると共に給水ポンプ
（７）が停止して、待機状態となる。In this embodiment, a water supply tank (6) is provided on the upstream side of the water supply passage (3), and the water supply tank (6) separates the city water and supplies water with the pump pressure of the water supply pump (7). But the second
As shown in the figure, the water supply tank (6) and the water supply pump (7) are omitted, and a water pipe (19) and a water supply channel (3) for supplying city water.
Water may be supplied under direct pressure by connecting directly to and. still,
In that case, it is necessary to interpose a vacuum break valve (20) located above the upper water level (L3) of the evaporation tank (1).
(21) is a check valve. As the heating means of the evaporation tank (1), an electric heater may be used instead of the burner (5). In the above configuration, when the power switch (16a) of the operating device (16) is turned on, water is first supplied to the water tank (6) up to a predetermined water level, and then the water supply valve (8) is opened and the water supply pump (7) is driven to start water supply to the evaporation tank (1) and the water level detection device (2). When the water level in the evaporation tank (1) rises to reach the middle water level (L2) due to the water supply, the water supply valve (8) is closed and the water supply pump (7) is stopped to enter the standby state.
次に操作器（16）の運転スイッチ（16b）を投入する
と、制御回路（18）に蒸気発生開始が指示され、バーナ
（５）が着火して蒸発槽（１）の加熱が開始される。蒸
発槽（１）の加熱により蒸発が行われると、その蒸発に
伴って蒸発槽（１）内水位が低下し、この水位低下が下
段水位（L1）に達するとフロートスイッチ（2a）がオン
して、給水弁（８）が開弁されると共に給水ポンプ
（７）が駆動して水位が中段水位（L2）に上昇するまで
給水が行われ、このように、蒸発槽（１）内水位は蒸気
発生中常に下段水位（L1）から中段水位（L2）までの範
囲に保持されることになる。次に、操作器（16）の運転
スイッチ（16b）を再度投入すれば、制御回路（18）に
蒸気発生の停止が指示され、給水弁（８）が開弁される
と共に給水ポンプ（７）が駆動して、蒸発槽（１）内水
位を上段水位（L3）に上昇させた後、給水元弁（10）を
閉弁し、給水ポンプ（７）の駆動を停止させると共に、
排水弁（12）を開弁して、蒸発槽（１）内と水位検出装
置（２）内並びに給水路（３）内を排水する。この排水
開始から排水完了し得る所定時間後に、排水弁（12）が
閉弁されると共に、前記した給水が行われて蒸発槽
（１）水位が中段水位（L2）と上昇した時点で給水が停
止して、待機状態となる。そして操作器（16）の電源ス
イッチ（16a）を切操作すれば、待機状態から給水元弁
（10）を閉弁したまま給水弁（８）並びに排水弁（12）
を開弁して、蒸気発生器（17）内の全ての水を排水す
る。Next, when the operation switch (16b) of the operation device (16) is turned on, the control circuit (18) is instructed to start steam generation, the burner (5) is ignited, and heating of the evaporation tank (1) is started. When evaporation is performed by heating the evaporation tank (1), the water level in the evaporation tank (1) decreases with the evaporation, and when this decrease in water level reaches the lower water level (L1), the float switch (2a) turns on. Then, the water supply valve (8) is opened, the water supply pump (7) is driven, and water is supplied until the water level rises to the middle water level (L2). Thus, the water level in the evaporation tank (1) is During the steam generation, it is always maintained in the range from the lower water level (L1) to the middle water level (L2). Next, when the operation switch (16b) of the operation unit (16) is turned on again, the control circuit (18) is instructed to stop the steam generation, the water supply valve (8) is opened, and the water supply pump (7) is opened. Driven to raise the water level in the evaporation tank (1) to the upper water level (L3), close the water supply source valve (10), and stop the drive of the water supply pump (7).
The drain valve (12) is opened to drain the inside of the evaporation tank (1), the inside of the water level detecting device (2) and the inside of the water supply channel (3). After a predetermined time from the start of drainage to when drainage can be completed, the drain valve (12) is closed, and the water is supplied when the water supply described above is performed and the water level of the evaporation tank (1) rises to the middle water level (L2). It stops and enters the standby state. When the power switch (16a) of the operating device (16) is turned off, the water supply valve (8) and the drain valve (12) are kept in the standby state with the water supply source valve (10) being closed.
To open all the water in the steam generator (17).
上記実施例では、電源スイッチ（16a）の投入により待
機状態となり、運転スイッチ（16b）の投入により蒸気
発生を開始するようにしているが、待機状態を省略し
て、運転スイッチ（16b）の投入により中段水位（L2）
までの給水と、該給水途中でのバーナの着火を行ない、
運転スイッチ（16b）の再投入によりバーナ（５）の燃
焼を停止すると共に上段水位（L3）まで給水した後、蒸
気発生器（17）内の全ての水を排水して全ての制御動作
を終了するようにしてもよい。In the above embodiment, the power switch (16a) is turned on to enter the standby state, and the operation switch (16b) is turned on to start steam generation. However, the standby state is omitted and the operation switch (16b) is turned on. Due to the middle water level (L2)
Up to the water supply and the ignition of the burner during the water supply,
Stop the combustion of the burner (5) by reclosing the operation switch (16b) and supply water to the upper water level (L3), then drain all the water in the steam generator (17) and finish all the control operations. You may do it.
（考案の効果） 以上のように、本考案によれば、給水ポンプ圧や水道圧
等の所定圧力で蒸発槽への給水を行なうようにしたの
で、従来の蒸発槽と給水槽間の水頭差で給水する構成と
比較して、確実に蒸発槽への給水を行え、しかも装置全
体の小型化が可能となる。しかも蒸気発生停止後に蒸発
槽内水位を蒸気発生中の水位以上に上昇させた後排水す
るようにしたので、蒸発槽内喫水部の洗浄とスケール成
分の濃縮防止並びに排水弁の熱水による損傷を防止で
き、かつかかる排水前の給水も上記所定圧力で行うこと
により迅速に排水を完了させることができる。(Effects of the Invention) As described above, according to the present invention, water is supplied to the evaporation tank at a predetermined pressure such as the water supply pump pressure or the water pressure, so that the head difference between the conventional evaporation tank and the water supply tank is increased. As compared with the configuration in which water is supplied in, the water can be reliably supplied to the evaporation tank, and the size of the entire apparatus can be reduced. Moreover, after the steam generation is stopped, the water level in the evaporation tank is raised to a level higher than the water level during steam generation before draining.Therefore, cleaning of the draft section in the evaporation tank, prevention of concentration of scale components, and damage to the drain valve by hot water are required. This can be prevented, and the drainage can be completed promptly by performing the water supply before such drainage at the above-mentioned predetermined pressure.
第１図は本考案の一実施例を示す全体概略構成図、第２
図は本考案の他の実施例を示す部分概略構成図、第３図
は従来例を示す全体概略構成図である。 （１）……蒸発槽 （２）……水位検出装置 （３）……給水路 （７）……給水ポンプ （11）……排水路 （12）……排水弁 （13）……蒸気供給路 （18）……制御手段（制御回路）FIG. 1 is an overall schematic configuration diagram showing an embodiment of the present invention, and FIG.
FIG. 3 is a partial schematic configuration diagram showing another embodiment of the present invention, and FIG. 3 is an overall schematic configuration diagram showing a conventional example. (1) …… Evaporation tank (2) …… Water level detection device (3) …… Water supply channel (7) …… Water supply pump (11) …… Drainage channel (12) …… Drain valve (13) …… Steam supply Road (18) …… Control means (control circuit)
───────────────────────────────────────────────────── フロントページの続き (72)考案者 清水 孝悦 兵庫県神戸市中央区明石町32番地 株式会 社ノーリツ内 (72)考案者 井上 隆史 兵庫県神戸市中央区明石町32番地 株式会 社ノーリツ内 (72)考案者 吉原 治 兵庫県神崎郡福崎町福田447―１ 福伸電 機株式会社内 (72)考案者 鈴木 和博 兵庫県神崎郡福崎町福田447―１ 福伸電 機株式会社内 審査官 清田 栄章 (56)参考文献 特開 昭59−13807（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayoshi Shimizu 32 Akashi-cho, Chuo-ku, Hyogo Prefecture Noritsu Stock Company (72) Inventor Takashi Inoue 32 Akashi-cho, Chuo-ku Kobe City Hyogo Noritsu Co., Ltd. (72) Creator Osamu Yoshihara 447-1 Fukuda, Fukusaki-cho, Kanzaki-gun, Hyogo Prefecture Fukushin Electric Co., Ltd. (72) Creator, Kazuhiro Suzuki 447-1 Fukuda, Fukusaki-cho, Kanzaki-gun, Hyogo Internal examination of Fukushin Electric Co., Ltd. Official Eisuke Kiyota (56) Reference Japanese Patent Laid-Open No. 59-13807 (JP, A)
Claims (1)
した排水路を接続した蒸発槽と、蒸発槽と接続した水位
検出装置と、蒸発槽並びに水位検出装置に連通され給水
時所定圧力で給水を行う給水路とを備えて、蒸気発生
中、蒸発槽内水位を設定水位に保持せしめると共に、蒸
気発生停止後蒸発槽内水位を上記設定水位以上の水位に
上昇させた後、排水弁を開弁せしめる制御手段を設けた
ことを特徴とする蒸気発生器。1. An evaporation tank having a steam supply path connected to an upper part thereof and a drain path having a drain valve interposed at a lower part thereof, a water level detection device connected to the evaporation tank, and an evaporation tank and a water level detection device connected to each other when supplying water. With a water supply channel for supplying water at a predetermined pressure, during steam generation, while keeping the water level in the evaporation tank at the set water level, after raising the water level in the evaporation tank after stopping steam generation to a water level above the set water level, A steam generator comprising a control means for opening a drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4581389U JPH0624646Y2 (en) | 1989-04-18 | 1989-04-18 | Steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4581389U JPH0624646Y2 (en) | 1989-04-18 | 1989-04-18 | Steam generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02140112U JPH02140112U (en) | 1990-11-22 |
| JPH0624646Y2 true JPH0624646Y2 (en) | 1994-06-29 |
Family
ID=31560324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4581389U Expired - Lifetime JPH0624646Y2 (en) | 1989-04-18 | 1989-04-18 | Steam generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624646Y2 (en) |
-
1989
- 1989-04-18 JP JP4581389U patent/JPH0624646Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02140112U (en) | 1990-11-22 |
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