JPH0330643Y2 - - Google Patents
Info
- Publication number
- JPH0330643Y2 JPH0330643Y2 JP1982198202U JP19820282U JPH0330643Y2 JP H0330643 Y2 JPH0330643 Y2 JP H0330643Y2 JP 1982198202 U JP1982198202 U JP 1982198202U JP 19820282 U JP19820282 U JP 19820282U JP H0330643 Y2 JPH0330643 Y2 JP H0330643Y2
- Authority
- JP
- Japan
- Prior art keywords
- water level
- water
- boiler
- detector
- level detector
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 260
- 238000002485 combustion reaction Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 238000013021 overheating Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Description
【考案の詳細な説明】
〔考案の利用分野〕
この考案は多管式貫流ボイラーの過熱防止を図
つた水面制御装置に関するものである。[Detailed description of the invention] [Field of application of the invention] This invention relates to a water level control device for preventing overheating of a multi-tubular once-through boiler.
一般にボイラーなどにおいて給水管理を行う場
合、そのボイラーに付属して設けられた給水装置
を屡屡作動したり停止したりすることが必要であ
る。
Generally, when managing water supply in a boiler or the like, it is often necessary to start or stop a water supply device attached to the boiler.
従来、上述の給水管理を行うために種々の水位
検出方式が提案され、かつ採用されるに至つてい
る。例えば、フロート式あるいは電気伝導検出式
が代表的であり、特に小型のボイラーに関しては
電気伝導検出式が主流を占めている。 Conventionally, various water level detection methods have been proposed and adopted in order to perform the above-mentioned water supply management. For example, the float type or the electric conduction detection type is typical, and the electric conduction detection type is the mainstream especially for small boilers.
電気伝導検出式に関して、具体的には水位検出
器−検出電気回路−給水ポンプのような組合せが
一般的である。この方法の一例として、給水ポン
プ作動用の水位検出器と給水ポンプ停止用の水位
検出器と、少なくとも２個以上の検出器（水位の
変動に関連づけてバーナーを燃焼させるためには
さらにもう１個の検出器が少なくとも必要であ
る）を用いる方式がある。しかし、この方式で
は、これらの水位検出器を内蔵した水位制御筒の
構造が極めて複雑となり、従つて、このような水
面制御装置の製作及び設置は極めて不経済であ
り、加えて、設定後の装置の保守も非常に煩雑で
ある。 Regarding the electrical conduction detection type, specifically, a combination such as a water level detector, a detection electric circuit, and a water supply pump is common. An example of this method is to use a water level detector to activate the water pump, a water level detector to stop the water pump, and at least two detectors (an additional detector to cause the burner to burn in relation to fluctuations in water level). There is a method that uses at least one detector). However, in this method, the structure of the water level control tube containing these water level detectors is extremely complicated, and therefore, the production and installation of such a water level control device is extremely uneconomical. Maintenance of the device is also very complicated.
他の方式としては１個の検出器で水面を制御す
る方式も公知である。例えばこの方式は同一出願
人による特公昭57−51004号公報に詳しく説明さ
れている。この方式に従うと給水制御レベルとバ
ーナー停止レベルとを同一レベルとして時間的な
要素を加えるだけで相互の干渉を防止し、１個の
検出器でボイラー水面の制御とバーナーの燃焼制
御を可能にしている。しかし、この方式は時間制
御であるので負荷変動が極端に大きい場合には水
位が大幅に変動し、時には許容値以下に低下し、
最悪の場合には水管の過熱を起こすという危険を
含んでいた。しかも、前記両方式とも、バーナー
定常燃焼時においては水管が加熱され、水管内で
気泡を生じこの気泡によりみかけの水面が上昇
し、水位制御筒内の設定水位よりも水管内の水位
の方が高くなり、水管の過熱は起らない。しか
し、バーナー起動時には水管内の水位は概ね水位
制御筒内の水位と同レベルである。よつて、水管
の上部は水で満たされてない状態となり水管が過
熱するという欠点も合せ持つていた。 As another method, a method in which the water surface is controlled using one detector is also known. For example, this method is explained in detail in Japanese Patent Publication No. 57-51004 by the same applicant. According to this method, mutual interference can be prevented by setting the water supply control level and the burner stop level at the same level and adding a time element, making it possible to control the boiler water level and burner combustion with one detector. There is. However, since this method is time-controlled, if the load fluctuations are extremely large, the water level will fluctuate significantly, and sometimes drop below the allowable value.
In the worst case scenario, there was a danger that the water pipes would overheat. Moreover, in both of the above methods, the water tube is heated during steady combustion with the burner, and bubbles are generated within the water tube.These bubbles raise the apparent water level, and the water level in the water tube is higher than the set water level in the water level control tube. The water pipes will not overheat. However, when the burner is started, the water level in the water pipe is approximately at the same level as the water level in the water level control cylinder. As a result, the upper part of the water pipe is not filled with water, which causes the water pipe to overheat.
この考案は上述のような種々の欠点を解消した
ボイラー用水面制御装置であつて、構造を単純化
してその保守を容易にならしめるばかりでなくボ
イラーの大幅な負荷変動に対しても極端な低水位
による水管の過熱の防止並びにボイラー起動時の
水管上部（ボイラー水位以上の水管部分）の過熱
を防止することを目的とするものである。
This invention is a boiler water level control device that eliminates the various drawbacks mentioned above.It not only simplifies the structure and makes maintenance easier, but also has extremely low resistance to large boiler load fluctuations. The purpose of this is to prevent overheating of the water pipes due to the water level, as well as to prevent overheating of the upper part of the water pipes (the part of the water pipes above the boiler water level) when starting the boiler.
この考案は、１個の水位検出器により時間的要
素による給水並びに燃焼制御、他の１個の水位検
出器により低水位に対する燃焼制御並びにもう１
個の水位検出器により、ボイラー起動時の水位制
御をするように構成している。即ち、この考案
は、上下管寄せを多数の水管で連結した多管式貫
流ボイラーにおいて、ボイラー本体に付設した水
位制御筒内に第１水位検出器及び第２水位検出器
を設け、第１水位検出器の設定水位を第２水位検
出器の設定水位より高位置とし、ボイラーの上部
管寄せに第３水位検出器を設け、この第３水位検
出器の設定水位を第１水位検出器の設定水位より
高位置とし、これら水位検出器と前記水位制御筒
に対する導電部分との間で電気的な閉回路を形成
し、所望個所に設置した制御器に対し、第１と第
２と第３の水位検出器及びボイラーに付属の給水
ポンプ並びにバーナーをそれぞれ電気的に連結
し、制御器は、バーナー定常燃焼時において、ボ
イラーの水位が第１水位検出器の設定水位以下と
なれば、その信号を受けて、給水用の設定時間
t11後に給水ポンプを稼動せしめるとともに、バ
ーナー停止用の設定時間t2経過後にバーナーを停
止せしめ、ボイラーの水位が第１水位検出器の設
定水位に達すれば、その信号を受けて即時または
給水ポンプ停止用の設定時間t12経過後に給水ポ
ンプを停止せしめるとともに、バーナーを即時燃
焼開始せしめ、ボイラーの水位が第２水位検出器
の設定水位以下となれば、その信号を受けて即時
バーナー燃焼を停止せしめ、さらにボイラー起動
時においては、第１水位検出器からの信号が給水
ポンプ停止信号であつても給水ポンプを稼動せし
め、ボイラーの水位が第３水位検出器の設定水位
に達すれば、その信号を受けて、ボイラー始動用
の設定時間t3経過後に給水を停止せしめるように
機能することを特徴としている。
This invention uses one water level detector to control water supply and combustion based on time factors, and another water level detector to control combustion for low water levels and another water level detector.
The system is configured to control the water level when the boiler starts up using water level detectors. That is, this invention is a multi-tube once-through boiler in which upper and lower headers are connected by a large number of water tubes, and a first water level detector and a second water level detector are provided in a water level control tube attached to the boiler body, and the first water level detector is The set water level of the detector is set higher than the set water level of the second water level detector, a third water level detector is provided in the upper header of the boiler, and the set water level of this third water level detector is set at a higher position than the set water level of the second water level detector. The position is higher than the water level, and an electrical closed circuit is formed between these water level detectors and the conductive part for the water level control cylinder, and the first, second, and third The water level detector, the water supply pump attached to the boiler, and the burner are each electrically connected, and the controller sends a signal when the water level of the boiler falls below the set water level of the first water level detector during steady combustion of the burner. Receiving and setting time for water supply
After t11 , the water supply pump is started, and the burner is stopped after the set time t2 for burner stop has elapsed, and when the water level in the boiler reaches the set water level of the first water level detector, the water supply pump is activated immediately or immediately upon receiving the signal. After the set stop time t 12 has elapsed, the water pump is stopped and the burner starts burning immediately. When the boiler water level falls below the set water level of the second water level detector, the burner combustion is stopped immediately upon receiving the signal. Moreover, when starting the boiler, even if the signal from the first water level detector is a water pump stop signal, the water pump is operated, and when the water level of the boiler reaches the set water level of the third water level detector, that signal is activated. The feature is that the water supply is stopped after the set time t3 for starting the boiler has elapsed.
以下、この考案を図面に基づいて説明する。図
面はこの考案による一実施例の説明図である。図
面中の符号１は上下管寄せを多数の水管で連結し
た多管式貫流ボイラー、２はボイラー本体の外側
に設けられた水位制御筒、５，６は水位制御筒に
設けられる第１水位検出器及び第２水位検出器で
ある。３は第１水位検出器の設定水位、４は第２
水位検出器の設定水位であつて、該設定水位３は
該設定水位４より高位置になるように設定されて
いる。８はボイラー１の上部管寄せ（図面上には
明示されていない）に設けられる第３水位検出
器、７は前記第３水位検出器の設定水位であつ
て、前記設定水位３より高位置となるように設定
されている。これらの水位検出器と前記水位制御
筒に対する導電部分との間では缶水を介して電気
的な閉回路が形成されるが、具体例としては、ア
ース線を直接水位制御筒の外壁に接続してもよい
し、缶体のどこか一部に接続するようにしてもよ
い。９，１０，１２はボイラーに付属する給水ポ
ンプ・バーナー及び制御器である。この制御器は
前記第１，第２，第３水位検出器５，６，８，バ
ーナー１０及び給水ポンプ９とそれぞれ信号線１
１で連結されている。前記第１，第２，第３水位
検出器５，６，８はボイラーの水位が設定水位
３，４，７に達すればその旨の信号を、設定水位
３，４，７以下に低下すればその旨の信号を制御
器１２に送信する。制御器１２においては、給水
ポンプ稼動用の設定時間t11とバーナー停止用の
設定時間t2と給水ポンプ稼動用の設定時間t12と、
ボイラー始動用の設定時間t3を設け、給水並びに
燃焼制御を行う。例えば、制御器は、第１水位検
出器５からの信号が設定水位３以下に低下した旨
のものであれば、設定時間t11経過後に給水ポン
プに稼動の信号を送り、設定時間t2経過までに設
定水位３まで復帰しない場合にはバーナーに停止
の信号を送り、または、第１水位検出器からの信
号が設定水位３に達した旨のものであれば、設定
時間t2を復帰させるとともに即時にバーナーに燃
焼開始の信号を送ると同時に給水ポンプに停止の
信号を送るかまたは設定時間t12経過後に給水ポ
ンプに停止の信号を送る。さらに第２水位検出器
から信号が設定水位４以下に低下した旨のもので
あればバーナー停止の信号を送り、または第２水
位検出器からの信号が設定水位４に達した旨のも
のであれば、バーナー停止信号を停止する。ある
いは、ボイラー始動によるその旨の信号を受けた
制御器は、第１水位検出器からの信号が給水ポン
プ停止信号であつても給水ポンプを稼動せしめ、
ボイラーの水位が第３水位検出器の設定水位７に
達すれば、設定時間t3経過後に給水ポンプを停止
し、ボイラー運転停止信号によりバーナー停止・
給水待期の状態となるように構成されている。
This invention will be explained below based on the drawings. The drawing is an explanatory diagram of an embodiment of this invention. In the drawing, reference numeral 1 indicates a multi-tubular once-through boiler in which upper and lower headers are connected by a large number of water tubes, 2 indicates a water level control tube installed on the outside of the boiler body, and 5 and 6 indicate a first water level detection unit installed in the water level control tube. water level detector and a second water level detector. 3 is the set water level of the first water level detector, 4 is the second
This is the set water level of the water level detector, and the set water level 3 is set to be higher than the set water level 4. 8 is a third water level detector provided in the upper header of the boiler 1 (not clearly shown in the drawing); 7 is the set water level of the third water level detector, which is located higher than the set water level 3; It is set to be. An electrical closed circuit is formed between these water level detectors and the conductive part for the water level control tube through the canned water. Alternatively, it may be connected to some part of the can body. Reference numerals 9, 10, and 12 are water pumps, burners, and controllers attached to the boiler. This controller connects the first, second, and third water level detectors 5, 6, 8, the burner 10, and the water supply pump 9 to a signal line 1, respectively.
They are connected by 1. The first, second, and third water level detectors 5, 6, and 8 send a signal to that effect when the water level of the boiler reaches the set water level 3, 4, or 7, and a signal to that effect when the water level falls below the set water level 3, 4, or 7. A signal to that effect is sent to the controller 12. In the controller 12, a set time t 11 for operating the water supply pump, a set time t 2 for stopping the burner, and a set time t 12 for operating the water supply pump,
A set time t3 is established for boiler startup, and water supply and combustion control are performed. For example, if the signal from the first water level detector 5 indicates that the water level has fallen below the set water level 3, the controller sends an operation signal to the water pump after the set time t11 has elapsed, and when the set time t2 has elapsed. If the water level does not return to the set water level 3 by then, send a stop signal to the burner, or if the signal from the first water level detector indicates that the water level has reached the set water level 3, return the set time t2 . At the same time, a combustion start signal is immediately sent to the burner, and at the same time a stop signal is sent to the water feed pump, or a stop signal is sent to the water feed pump after the set time t12 has elapsed. Furthermore, if the signal from the second water level detector indicates that the water level has fallen below the set water level 4, a signal is sent to stop the burner, or if the signal from the second water level detector indicates that the water level has reached the set water level 4, it will send a signal to stop the burner. For example, turn off the burner stop signal. Alternatively, the controller that receives a signal to that effect due to the boiler start operates the feed water pump even if the signal from the first water level detector is a feed water pump stop signal,
When the boiler water level reaches the set water level 7 of the third water level detector, the water supply pump will be stopped after the set time t3 has elapsed, and the burner will be stopped and activated by the boiler operation stop signal.
It is configured so that it is in a state of waiting for water supply.
次に作用について説明する。ボイラーを運転開
始とすると給水ポンプが稼動し水位が上昇する。
このとき水位が第１水位検出器の設定水位に達し
ておれば即時バーナーは燃焼開始するが給水ポン
プはなお、稼動を続ける。ボイラーの水位が上昇
し、第３水位検出器の設定水位に達すれば、設定
時間t3後に給水を停止し、ボイラー始動の旨の信
号を解除する。次第に水位は低下し、第１水位検
出器の設定水位以下となれば第１水位検出器から
その旨の信号を受け、設定時間t11経過すると給
水が開始され水位が上昇する。そして設定時間t2
経過前までに水位が第１水位検出器の設定水位に
達すると、第１水位検出器からその旨の信号を受
けて設定時間t2はリセツトされるとともに給水は
即時停止するかまたは設定時間t12経過後に停止
する。その後水位は低下し、第１水位検出器の設
定水位以下となるとその旨の信号を受けて以後前
述の作動を繰返す。しかし設定時間t11経過まで
に水位が第１水位検出器設定水位に達しないとき
は即時バーナーは停止される。その後水位が上昇
し、第１水位検出器の設定水位に達するとバーナ
ーは即時燃焼を開始し、給水を即時停止するかま
たは設定時間t12経過後に給水を停止する。以後
は上記作動を繰返す。なお、この際ボイラー負荷
が急激に増加し、設定時間t2経過前に水位が第２
水位検出器の設定水位以下となれば、制御器は第
２水位検出器よりその旨の信号を受けて即時バー
ナーの燃焼を停止する。設定時間t11経過後には
給水が開始され、設定時間t2経過後には第１水位
検出器からの信号を受けてバーナー燃焼停止の信
号も発せられる（しかしこのときはバーナーは第
２水位検出器からの信号によりすでに停止してい
る）。その後水位は上昇し、第２水位検出器の設
定水位に達すると第２水位検出器からの信号によ
るバーナー燃焼停止信号は停止する（しかし、こ
の場合も第１水位検出器からの信号によりなおバ
ーナーの燃焼は停止している）。さらに水位が上
昇し、第１水位検出器の設定水位に達すると以後
は前述の作動を繰返し、給水並びに燃焼制御が続
行することとなる。 Next, the effect will be explained. When the boiler starts operating, the water supply pump starts operating and the water level rises.
At this time, if the water level has reached the set water level of the first water level detector, the burner immediately starts combustion, but the water supply pump continues to operate. When the water level in the boiler rises and reaches the set water level of the third water level detector, the water supply is stopped after the set time t3 , and the signal to start the boiler is canceled. The water level gradually decreases, and when it falls below the set water level of the first water level detector, a signal to that effect is received from the first water level detector, and when the set time t11 has elapsed, water supply is started and the water level rises. and setting time t 2
If the water level reaches the set water level of the first water level detector before the time elapses, a signal to that effect is received from the first water level detector, and the set time t2 is reset, and the water supply is immediately stopped or the set time t2 is reset. Stops after 12 seconds. Thereafter, the water level decreases, and when it becomes below the set water level of the first water level detector, a signal to that effect is received and the above-described operation is repeated thereafter. However, if the water level does not reach the water level set by the first water level detector by the time the set time t11 elapses, the burner is immediately stopped. Thereafter, the water level rises and when it reaches the set water level of the first water level detector, the burner immediately starts combustion and stops the water supply immediately or after the set time t12 has elapsed. After that, repeat the above operation. At this time, the boiler load increases rapidly, and the water level reaches the second level before the set time t2 has elapsed.
When the water level falls below the set water level of the water level detector, the controller receives a signal to that effect from the second water level detector and immediately stops combustion in the burner. After the set time t 11 has elapsed, water supply starts, and after the set time t 2 has elapsed, a signal to stop burner combustion is issued in response to a signal from the first water level detector (however, at this time, the burner is switched to the second water level detector). (already stopped due to a signal from). After that, the water level rises, and when it reaches the set water level of the second water level detector, the burner combustion stop signal is stopped by the signal from the second water level detector (however, in this case, the burner combustion stop signal is still stopped by the signal from the first water level detector). combustion has stopped). When the water level further rises and reaches the set water level of the first water level detector, the above-described operation is repeated, and water supply and combustion control continue.
この考案は以上詳述した如く、１個の水位検出
器で時間的要素を加味して給水並びに燃焼制御
を、他の１個の水位検出器で低水位の燃焼遮断を
行い、もう１個の水位検出器でボイラー起動時の
水位制御を行い、水位制御筒に対する導電部分に
接地手段としてのアース線を接続するように構成
せしめることにより、水面制御筒の構造を単純化
かつコンパクト化して製作コストを安価なものと
することができ、（必要最小限数の電極棒）、その
保守・管理を容易ににすることができる等の実用
上多大な効果を挙げることができる。
As detailed above, this idea uses one water level detector to control water supply and combustion by taking time factors into consideration, another water level detector to shut off combustion at low water levels, and another water level detector to control combustion at low water levels. The water level detector controls the water level when the boiler is started, and by connecting the ground wire as a grounding means to the conductive part of the water level control tube, the structure of the water level control tube can be simplified and made more compact, reducing manufacturing costs. It can be made inexpensive (minimum number of electrode rods required), and its maintenance and management can be made easy, which has great practical effects.
また、この構成は、ボイラー起動時並びに運転
中の最低水位が第３水位検出器及び第２水位検出
器により限定されるので、ボイラー起動時の水管
上部の過熱並びにボイラーの大幅な負荷変動時の
極端な低水位による水管の過熱を防止することが
できる。なお、バーナー定常燃焼時における低水
位による過熱に対しては、第１水位検出器並びに
第２水位検出器の２重の防止機構が設けられ、安
全性を大幅に向上することができる。 In addition, with this configuration, the lowest water level at the time of boiler startup and during operation is limited by the third water level detector and the second water level detector. This can prevent water pipes from overheating due to extremely low water levels. In addition, a double prevention mechanism of a first water level detector and a second water level detector is provided to prevent overheating due to a low water level during steady combustion in the burner, and safety can be greatly improved.
さらに、この水面制御装置は、給水並びに燃焼
制御を時間的要素を加味して行うので、故障を少
なくすることができ、この装置自体の耐久性を向
上させることができる。 Furthermore, since this water level control device performs water supply and combustion control taking time factors into account, failures can be reduced and the durability of the device itself can be improved.
図面は、この考案の一実施例を示す説明図であ
る。
１……多管式貫流ボイラー、２……水位制御
筒、３……第１水位検出器の設定水位、４……第
２水位検出器の設定水位、５……第１水位検出
器、６……第２水位検出器、７……第３水位検出
器の設定水位、８……第３水位検出器、９……給
水ポンプ、１０……バーナー、１１……信号線、
１２……制御器。
The drawings are explanatory diagrams showing one embodiment of this invention. DESCRIPTION OF SYMBOLS 1...Multi-tube once-through boiler, 2...Water level control tube, 3...Setting water level of first water level detector, 4...Setting water level of second water level detector, 5...First water level detector, 6 ...Second water level detector, 7...Setting water level of the third water level detector, 8...Third water level detector, 9...Water pump, 10...Burner, 11...Signal line,
12...Controller.
Claims (1)
ボイラー１において、ボイラー本体に付設した水
位制御筒２内に第１水位検出器５及び第２水位検
出器６を設け、第１水位検出器の設定水位３を第
２水位検出器６の設定水位４より高位置とし、ボ
イラー１の上部管寄せに第３水位検出器８を設
け、この第３水位検出器の設定水位７を第１水位
検出器の設定水位３より高位置とし、これら水位
検出器と前記水位制御筒に対する導電部分との間
で電気的な閉回路を形成し、所望個所に設置した
制御器１２に対し、第１と第２と第３の水位検出
器５，６，８及びボイラーに付属の給水ポンプ９
並びにバーナー１０をそれぞれ電気的に連結し、
制御器１２は、バーナー定常燃焼時において、ボ
イラー１の水位が第１水位検出器の設定水位３以
下となれば、その信号を受けて給水用の設定時間
t11経過後に給水ポンプ９を稼動せしめるととも
に、バーナー停止用の時間t2経過後にバーナー１
０を停止せしめ、ボイラー１の水位が第１水位検
出器の設定水位３に達すれば、その信号を受けて
即時または給水ポンプ停止用の設定時間t12経過
後に給水ポンプ９を停止せしめるとともに、バー
ナー１０を即時燃焼開始せしめ、ボイラー１の水
位が第２水位検出器の設定水位４以下となれば、
その信号を受けて即時バーナー燃焼を停止せし
め、さらにボイラー起動時においては、第１水位
検出器５からの信号が給水ポンプ停止信号であつ
ても給水ポンプ９を稼動せしめ、ボイラー１の水
位が第３水位検出器の設定水位７に達すれば、そ
の信号を受けて、ボイラー始動用の設定時間t3経
過後に給水を停止せしめるように機能することを
特徴とする多管式貫流ボイラーの二連式水面制御
装置。 In a multi-tube once-through boiler 1 in which upper and lower headers are connected by a large number of water pipes, a first water level detector 5 and a second water level detector 6 are provided in a water level control tube 2 attached to the boiler body, and the first water level detector The set water level 3 is set higher than the set water level 4 of the second water level detector 6, a third water level detector 8 is provided in the upper header of the boiler 1, and the set water level 7 of this third water level detector is set higher than the set water level 4 of the second water level detector 6. The position is higher than the set water level 3 of the detector, an electrical closed circuit is formed between these water level detectors and the conductive part for the water level control cylinder, and the first and second Second and third water level detectors 5, 6, 8 and water supply pump 9 attached to the boiler
and the burners 10 are electrically connected to each other,
When the water level of the boiler 1 becomes lower than the set water level 3 of the first water level detector during steady combustion of the burner, the controller 12 receives the signal and sets the set time for water supply.
After the elapse of t 11 , the water supply pump 9 is started, and after the elapse of the burner stop time t 2 , the burner 1 is turned on.
When the water level of the boiler 1 reaches the set water level 3 of the first water level detector, the water supply pump 9 is stopped immediately or after the set time t12 for stopping the water supply pump has elapsed in response to that signal, and the water supply pump 9 is stopped, and the burner 1 is stopped. 10 to immediately start combustion, and if the water level of the boiler 1 becomes below the set water level 4 of the second water level detector,
Upon receiving this signal, the burner combustion is immediately stopped, and furthermore, when starting the boiler, even if the signal from the first water level detector 5 is a feed water pump stop signal, the water feed pump 9 is operated so that the water level of the boiler 1 reaches the first level. 3. A double once-through multi-tube boiler characterized in that when the set water level 7 of the water level detector is reached, the water supply is stopped after the set time t3 for starting the boiler has elapsed upon receiving the signal. Water surface control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19820282U JPS59103007U (en) | 1982-12-27 | 1982-12-27 | Water level control device for multi-tube once-through boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19820282U JPS59103007U (en) | 1982-12-27 | 1982-12-27 | Water level control device for multi-tube once-through boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59103007U JPS59103007U (en) | 1984-07-11 |
| JPH0330643Y2 true JPH0330643Y2 (en) | 1991-06-28 |
Family
ID=30423757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19820282U Granted JPS59103007U (en) | 1982-12-27 | 1982-12-27 | Water level control device for multi-tube once-through boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59103007U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776614B2 (en) * | 1985-11-14 | 1995-08-16 | 三浦工業株式会社 | Method for detecting abnormality of wind pressure switch in combustion device |
| JPH0749210Y2 (en) * | 1988-03-31 | 1995-11-13 | 三浦工業株式会社 | Water level controller in boiler system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4813281U (en) * | 1971-06-30 | 1973-02-14 | ||
| JPS5751004A (en) * | 1980-07-30 | 1982-03-25 | Bendix Corp | Multipositional digital actuator and control thereof |
| JPS5932702A (en) * | 1982-08-17 | 1984-02-22 | 株式会社荏原製作所 | Preventive device for superheat of boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56112405U (en) * | 1980-01-24 | 1981-08-31 |
-
1982
- 1982-12-27 JP JP19820282U patent/JPS59103007U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4813281U (en) * | 1971-06-30 | 1973-02-14 | ||
| JPS5751004A (en) * | 1980-07-30 | 1982-03-25 | Bendix Corp | Multipositional digital actuator and control thereof |
| JPS5932702A (en) * | 1982-08-17 | 1984-02-22 | 株式会社荏原製作所 | Preventive device for superheat of boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59103007U (en) | 1984-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2078479A (en) | Water control for boilers | |
| JPH0330643Y2 (en) | ||
| JP2010078204A (en) | Water supply control device | |
| JP2015096784A (en) | Boiler system | |
| JP2785729B2 (en) | Boiler water level control method | |
| JPH0749211Y2 (en) | Boiler water level controller | |
| JP2942084B2 (en) | Water supply control device for multi-tube once-through boiler | |
| JPS5932702A (en) | Preventive device for superheat of boiler | |
| JPS6291704A (en) | Boiler-body overheat preventive device using two-throw water level in multitubular type once-through boiler | |
| JP2002147708A (en) | Method for feedwater control for boiler | |
| JP2673997B2 (en) | Boiler water level control device | |
| JPH0749318Y2 (en) | Control device for operating number of hot water boilers | |
| JP2972101B2 (en) | Boiler water level control method | |
| KR100245421B1 (en) | Ignition method for a gas boiler | |
| JP2975874B2 (en) | Boiler water level control method | |
| JP2668262B2 (en) | Boiler water level control method | |
| CN1049972C (en) | Hot water boiler system | |
| JPS5990115A (en) | Water level controller using single electrode | |
| JPS6040762B2 (en) | Boiler water supply control method | |
| JP4007545B2 (en) | Boiler that varies the water supply start water level according to the amount of combustion | |
| JPS643959Y2 (en) | ||
| JPH0749212Y2 (en) | Water level controller for boiler | |
| JPS6027864Y2 (en) | hot water heater | |
| JPH0523921Y2 (en) | ||
| JPS5937401B2 (en) | Can water control device for multi-tube once-through boiler |