JP2674200B2 - Steam generator - Google Patents

Steam generator

Info

Publication number
JP2674200B2
JP2674200B2 JP1090138A JP9013889A JP2674200B2 JP 2674200 B2 JP2674200 B2 JP 2674200B2 JP 1090138 A JP1090138 A JP 1090138A JP 9013889 A JP9013889 A JP 9013889A JP 2674200 B2 JP2674200 B2 JP 2674200B2
Authority
JP
Japan
Prior art keywords
scale
water
drainage
valve
steam
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
Application number
JP1090138A
Other languages
Japanese (ja)
Other versions
JPH02267402A (en
Inventor
豊 上村
義幸 足立
博明 山内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1090138A priority Critical patent/JP2674200B2/en
Publication of JPH02267402A publication Critical patent/JPH02267402A/en
Application granted granted Critical
Publication of JP2674200B2 publication Critical patent/JP2674200B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 本発明は浴室等に蒸気を充満させて、浴室の空気を加
熱し、サウナ等に利用する蒸気発生装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam generator that fills a bathroom or the like with steam to heat the air in the bathroom and use it in a sauna or the like.

従来の技術 一般に水を沸騰させて蒸気を発生させるこの種の蒸気
発生器は、第3図に示すように、缶体24と、この缶体24
の上方空間に蒸気出口27と、下方水中に給水口26を設
け、缶体24の外周面に多数溶接されたフィン25がバーナ
23の燃焼熱を吸収し、缶体24内の水41を加熱して沸騰さ
せ、蒸気42を発生させて、蒸気出口27より、蒸気42を器
外に送り出す蒸気管40と、さらに缶体24内の水41を排出
する排水管43と排水弁(ボール弁)34が設けられて構成
されていた。
2. Description of the Related Art In general, a steam generator of this type for boiling water to generate steam has a can body 24 and a can body 24 as shown in FIG.
A steam outlet 27 and a water supply port 26 in the lower water are provided in the space above, and a large number of fins 25 welded to the outer peripheral surface of the can body 24 are burner.
A steam pipe 40 that absorbs the combustion heat of 23 to heat and boil the water 41 in the can body 24 to generate steam 42, and send the steam 42 out of the steam outlet 27, and the can body 24. A drainage pipe 43 for draining water 41 therein and a drainage valve (ball valve) 34 were provided.

発明が解決しようとする課題 前記構成において蒸気を継続して発生さすことによ
り、缶体24内の水41は減ってくるが、缶体24内に設けら
れた上水位センサ28、下水位センサ29により、水位は常
にこの両水位センサの位置する範囲内に保つように給水
口26より缶体24内に水が補給される。缶体24内の水41
は、常に沸騰して蒸発しているために、水中に含まれた
スケール成分(カルシュウム、マグネシュウム、シリカ
等)が析出して濃縮され缶体24の内壁に付着した(第4
図に示す)。なお、付着したスケール44は、蒸気発生器
の停止にともない、缶体内の水41が排水されるので、缶
体24は、急激に冷却されるため、収縮する。この時、缶
体24とスケール44の熱膨張係数の差により剥離されてス
ケール片44′となって缶体24の下部に落下する。蒸気発
生器を再び使用すると落下したスケール片44′は、沸騰
している缶体24内の水41の力により缶体24内を移動す
る。この時、一部のスケール片44′は、給水口26より押
し出され、給水管30の途中で分岐された排水口31より、
排水管43を通って排水弁(ボール弁)34のボール35の表
面に落下して堆積した。この状態で、蒸気発生器を停止
して、缶体24内の水41を排水させるために、排水弁34を
開くと、ボール35の表面に堆積したスケール片44′が、
ボール35と弁座36の間にかみ込み、排水弁34が固着する
課題がひき起こされた。そこでこの課題を解決するため
に、排水弁34の上流にフィルタ(図示せず)を設けた
が、フィルタが詰って排水出来なくなる課題と、頻繁に
フィルタの掃除をしなければならない課題が発生した。
Problems to be Solved by the Invention By continuously generating steam in the above configuration, the water 41 in the can body 24 decreases, but the upper water level sensor 28 and the lower water level sensor 29 provided in the can body 24. As a result, water is replenished into the can body 24 from the water supply port 26 so that the water level is always kept within the range where the both water level sensors are located. Water in can 24 24
Is constantly boiling and evaporating, the scale components (calcium, magnesium, silica, etc.) contained in the water are deposited and concentrated and adhered to the inner wall of the can body 24 (fourth).
Shown in the figure). Note that the attached scale 44 contracts because the water 41 in the can body is drained as the steam generator stops, and the can body 24 is rapidly cooled and thus contracts. At this time, due to the difference in coefficient of thermal expansion between the can body 24 and the scale 44, the scale body 44 is peeled off and becomes a scale piece 44 'and falls to the bottom of the can body 24. When the steam generator is used again, the scale piece 44 'that has fallen moves in the can body 24 by the force of the water 41 in the boiling can body 24. At this time, a part of the scale piece 44 'is pushed out from the water supply port 26, and from the drainage port 31 branched in the middle of the water supply pipe 30,
It passed through the drainage pipe 43 and fell and accumulated on the surface of the ball 35 of the drainage valve (ball valve) 34. In this state, the steam generator is stopped and the drain valve 34 is opened to drain the water 41 in the can body 24.
The problem that the drain valve 34 sticks between the ball 35 and the valve seat 36 and sticks to the drain valve 34 is caused. Therefore, in order to solve this problem, a filter (not shown) was provided upstream of the drain valve 34, but there were problems that the filter became clogged and drainage could not be performed and that the filter had to be cleaned frequently. .

本発明は、かかる従来の課題を解消するものでフィル
タを設けることなく、かつ掃除する必要もなくスケール
片44′は、排水時に缶体24内の水41と、ともに器外に排
出し、スケール片44′のかみ込みによる排水弁34の固着
を防止することを目的とする。
The present invention is to solve the above-mentioned conventional problems, without providing a filter, and without the need for cleaning, the scale piece 44 ′ is discharged together with the water 41 in the can body 24 at the time of drainage, The purpose is to prevent the drain valve 34 from sticking due to the biting of the piece 44 '.

課題を解決するための手段 本発明は、前記課題を解消するために、蒸気出口およ
び給水口を有する缶体と、この缶体を加熱して内部の水
を沸騰させる加熱源と、缶体に水を送る給水管と、缶体
の水を抜く排水管と、排水弁を設け、その排水管にスケ
ール溜りを設けた蒸気発生装置である。
Means for Solving the Problems In order to solve the above problems, the present invention provides a can body having a steam outlet and a water supply port, a heating source for heating the can body to boil the internal water, and a can body. This is a steam generator in which a water supply pipe for sending water, a drain pipe for draining water from a can body, and a drain valve are provided, and a scale reservoir is provided in the drain pipe.

作用 本発明は、上記構成によって、缶体内のスケール片が
蒸気発生装置の使用中に排水口により落下してもスケー
ル溜りにより一旦止められるので、排水弁のボール表面
に堆積することなく、排水弁が開かれた後、スケール溜
りに溜ったスケール片は缶体内の水とともに排水弁を通
り器外に排出することができる。
Effect of the Invention With the above-described configuration, the scale piece in the can is temporarily stopped by the scale reservoir even if the scale piece falls inside the can during use of the steam generator, so that it does not accumulate on the ball surface of the drain valve, and thus the drain valve does not accumulate. After the opening, the scale pieces accumulated in the scale reservoir can be discharged to the outside of the device through the drain valve together with the water in the can.

実施例 以下本発明の一実施例を添付図面にもとづいて説明す
る。第1図、第2図において、缶体2の下方に一定の燃
焼スペースを隔てて加熱手段であるバーナ1が配設され
ている。缶体2内には、上方空間に蒸気出口5と下方水
中に給水口4と、缶体2内の水位を一定の範囲内に保つ
上水位センサ6と下水位センサ7が設けられており、缶
体2の外周には、バーナ1の燃焼熱を吸収するフィン3
が多数溶接されている。さらに缶体2の給水口4と接続
された給水管8と、この給水管8より分岐して排水口9
と、その下方には電動式の排水弁12が設けられており、
排水口9と排水弁12は、スケール溜り21aと21bが設けら
れた排水管21で接続されている。なお排水弁12は、ボー
ル弁を用いている。
Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, a burner 1 as a heating means is arranged below a can body 2 with a constant combustion space. Inside the can body 2, there are provided a steam outlet 5 in the upper space, a water supply port 4 in the lower water, an upper water level sensor 6 and a lower water level sensor 7 for keeping the water level in the can body 2 within a certain range, On the outer periphery of the can body 2, fins 3 that absorb the combustion heat of the burner 1
Are welded in large numbers. Further, a water supply pipe 8 connected to the water supply port 4 of the can body 2 and a drainage port 9 branched from the water supply pipe 8
And below that, an electric drain valve 12 is installed,
The drainage port 9 and the drainage valve 12 are connected by a drainage pipe 21 provided with scale reservoirs 21a and 21b. The drain valve 12 is a ball valve.

前記構成において、バーナ1の燃焼により、フィン3
がその燃焼熱を吸収して缶体2内の水19が加熱されて沸
騰し、蒸気20を発生させる。発生した蒸気20は、蒸気出
口5より、蒸気管18を経て器外に送り出される。缶体2
内の水19は蒸発して減ってくるが、水位が上水位センサ
6と下水位センサ7の位置する範囲内に保つよう、給水
口4より水が補給される。缶体2内の水19は、常に沸騰
しているため、水中に含まれたスケール成分が析出して
濃縮され、缶体2の内壁に付着する(第2図に示す)
が、蒸気発生装置の停止と同時に、排水弁12が開き、缶
体2内の水19は、排水される。排水によって缶体2は急
激に冷却されるため収縮する。この時、缶体2とスケー
ル22の熱膨張係数の差により、スケール22は、剥離され
てスケール片22′となって缶体2の下部に落下する。蒸
気発生装置を再び使用すると落下したスケール片22′
は、沸騰している缶体2内の水19の力により缶体2内を
動きながら移動する。この時一部のスケール片22′は、
給水口4より押し出され、排水口9より、自重で落下す
る。落下したスケール片22′は、排水管21に設けられた
スケール溜り21aと21bにて一旦止められる。したがって
スケール片22′は排水弁12のボール13表面に落下して堆
積されることがなく、排水弁12が開かれる時にボール13
と弁座14の間にかみ込むことはない。またスケール溜り
21aと21bに溜ったスケール片22′は、排水弁12が開かれ
た後、缶体2内の水19とともに排水弁12を通り器外に排
出される。
In the above configuration, the fins 3 are burned by the combustion of the burner 1.
Absorbs the heat of combustion to heat the water 19 in the can body 2 to boil and generate steam 20. The generated steam 20 is sent out from the steam outlet 5 through the steam pipe 18. Can 2
Although the water 19 therein evaporates and decreases, water is replenished from the water supply port 4 so that the water level is kept within the range where the upper water level sensor 6 and the lower water level sensor 7 are located. Since the water 19 in the can body 2 is constantly boiling, the scale component contained in the water is deposited and concentrated, and adheres to the inner wall of the can body 2 (shown in FIG. 2).
However, the drain valve 12 is opened at the same time when the steam generator is stopped, and the water 19 in the can 2 is drained. The can body 2 is rapidly cooled by the drainage, and thus contracts. At this time, due to the difference in coefficient of thermal expansion between the can body 2 and the scale 22, the scale 22 is peeled off and becomes a scale piece 22 'and falls to the lower part of the can body 2. Scale piece 22 'dropped when the steam generator was used again
Moves by moving in the can 2 by the force of the water 19 in the can 2 that is boiling. At this time, some of the scale pieces 22 '
It is pushed out from the water supply port 4 and falls from the drainage port 9 by its own weight. The dropped scale piece 22 'is temporarily stopped by the scale reservoirs 21a and 21b provided in the drainage pipe 21. Therefore, the scale piece 22 ′ does not fall and accumulate on the surface of the ball 13 of the drain valve 12, and when the drain valve 12 is opened, the ball 13
Between the valve seat 14 and the valve seat 14. Also scale pool
After the drain valve 12 is opened, the scale pieces 22 'accumulated in 21a and 21b pass through the drain valve 12 together with the water 19 in the can 2 and are discharged to the outside of the device.

スケール溜り21aと21bは、排水口9と排水弁12の間の
どの位置でもよいし、1個ないし複数個でもよい。また
実施例では水平状態のスケール溜りにしているのが角度
を設けるとなお効果が大きい。さらにトラップ状のスケ
ール溜りにも出来る。
The scale reservoirs 21a and 21b may be located anywhere between the drainage port 9 and the drainage valve 12, and may be one or more. Further, in the embodiment, the horizontal scale reservoir is more effective when the angle is provided. It can also be used as a trap-like scale reservoir.

発明の効果 このように本発明によれば、次のような作用効果が期
待できる。
Effects of the Invention As described above, according to the present invention, the following operational effects can be expected.

(1) スケール溜りを設けることにより、缶体内より
押し出されるスケール片が、排水弁の表面に落下して堆
積し、ボールと弁座の間にかみ込んで排水弁が固着する
ことがなく、長期にわたり、故障しない。
(1) By providing the scale reservoir, the scale pieces pushed out from the can body fall onto the surface of the drain valve and accumulate, and the drain valve does not stick by being caught between the ball and the valve seat. It does not break down.

(2) 小さい粒子のスケール片により、排水弁のボー
ル表面と弁座に塗布されたグリス類がけずりとられるこ
ともなく、かつボール表面と弁座にキズが付くこともな
い。
(2) The scale particles of small particles prevent the grease applied to the ball surface and the valve seat of the drain valve from being scraped off, and the ball surface and the valve seat are not scratched.

(3) フィルターを設けることなく、かつ排水行為と
共に同時に自動的にスケール片も器外に排出されるた
め、スケール溜りに溜ったスケールを取り出す必要がな
い。
(3) It is not necessary to take out the scale accumulated in the scale reservoir because the scale piece is automatically discharged out of the vessel at the same time as the drainage action without providing a filter.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の一実施例を示す蒸気発生装置の縦断面
図であり、蒸気発生状態を示す。第2図は第1図のA−
A線の断面図であり、缶体内壁へのスケール付着状態
と、その剥離状態を示す。第3図は従来例の縦断面図で
あり、第4図は第3図のB−B線の断面図であり、缶体
内壁へのスケール付着状態と、剥離の状態を示す。図中
の実線矢印は、給水と蒸気の流れを示し、破線矢印は排
水の流れとスケール片の落下を示す。 1……バーナ、2……缶体、3……フィン、4……給水
口、5……蒸気出口、12……排水弁、13……ボール、14
……弁座、17……モータ、21……排水管、21a、21b……
スケール溜り、22……スケール、22′……スケール片。
FIG. 1 is a vertical cross-sectional view of a steam generator showing an embodiment of the present invention, showing a steam generation state. FIG. 2 shows A- of FIG.
FIG. 6 is a cross-sectional view taken along line A, showing a state where scale is attached to the inner wall of the can and a state where the scale is peeled off. FIG. 3 is a vertical cross-sectional view of a conventional example, and FIG. 4 is a cross-sectional view taken along the line BB in FIG. The solid arrows in the figure show the flow of water supply and steam, and the dashed arrows show the flow of drainage and the falling of scale pieces. 1 ... Burner, 2 ... Can, 3 ... Fin, 4 ... Water inlet, 5 ... Steam outlet, 12 ... Drain valve, 13 ... Ball, 14
…… Valve seat, 17 …… Motor, 21 …… Drain pipe, 21a, 21b ……
Scale pool, 22 ... scale, 22 '... scale piece.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】蒸気出口および給水口を有する缶体と、こ
の缶体を加熱して内部の水を沸騰させる加熱源と、缶体
に水を送る給水管と、缶体の水を抜く排水管と、上記排
水管に設けた排水弁とを備え、かつ上記排水管の排水弁
を缶体との間に前記缶体から流下するスケールを一時的
に溜める略水平なスケール溜りを設けて排水弁の開成に
よって缶体内の水とともにスケールを同時に排出する蒸
気発生装置。
1. A can body having a steam outlet and a water supply port, a heating source for heating the can body to boil internal water, a water supply pipe for feeding water to the can body, and drainage for draining water from the can body. A drainage valve provided in the drainage pipe, and a drainage valve of the drainage pipe is provided between the can body and a substantially horizontal scale pool for temporarily storing the scale flowing down from the can body. A steam generator that simultaneously discharges water and the scale by opening the valve.
JP1090138A 1989-04-10 1989-04-10 Steam generator Expired - Lifetime JP2674200B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1090138A JP2674200B2 (en) 1989-04-10 1989-04-10 Steam generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1090138A JP2674200B2 (en) 1989-04-10 1989-04-10 Steam generator

Publications (2)

Publication Number Publication Date
JPH02267402A JPH02267402A (en) 1990-11-01
JP2674200B2 true JP2674200B2 (en) 1997-11-12

Family

ID=13990150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1090138A Expired - Lifetime JP2674200B2 (en) 1989-04-10 1989-04-10 Steam generator

Country Status (1)

Country Link
JP (1) JP2674200B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
JP5164601B2 (en) * 2008-02-22 2013-03-21 アイシン精機株式会社 Reformer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735790Y2 (en) * 1978-02-21 1982-08-07

Also Published As

Publication number Publication date
JPH02267402A (en) 1990-11-01

Similar Documents

Publication Publication Date Title
US1866193A (en) Purification of furnace or other gases
JP2674200B2 (en) Steam generator
GB2232749A (en) Water heaters using waste heat: cleaning heat exchangers
JP2807433B2 (en) Steam humidifier
JPH0617895Y2 (en) Local cleaning toilet with dehumidifier
JPS6032772B2 (en) Heated evaporative humidifier
JPH0645126Y2 (en) Steam generator
JPS63194107A (en) Steam generator
JPH0629651B2 (en) Steam generator
JPH0736658Y2 (en) Steam spout
WO2008129119A9 (en) Steam generator, method for operating a steam generator and a vessel of a steam generator
JPS593293Y2 (en) humidifier
JP2841929B2 (en) Steam generator
JPH0129362Y2 (en)
JPS56920A (en) Stack-rain preventing device
JPH0443162B2 (en)
JPH0629648B2 (en) Steam generator
JPS6226647Y2 (en)
JPH0629649B2 (en) Steam generator
US458540A (en) Jet condenses
US743769A (en) Heater.
JPH0443161B2 (en)
JPS56124825A (en) Smoke stack
JPH0629650B2 (en) Steam generator
JPS5457358A (en) Cleaning tank

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20070718

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080718

Year of fee payment: 11

S801 Written request for registration of abandonment of right

Free format text: JAPANESE INTERMEDIATE CODE: R311801

ABAN Cancellation of abandonment
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080718

Year of fee payment: 11

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350