JP2016148468A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2016148468A5 JP2016148468A5 JP2015023977A JP2015023977A JP2016148468A5 JP 2016148468 A5 JP2016148468 A5 JP 2016148468A5 JP 2015023977 A JP2015023977 A JP 2015023977A JP 2015023977 A JP2015023977 A JP 2015023977A JP 2016148468 A5 JP2016148468 A5 JP 2016148468A5
- Authority
- JP
- Japan
- Prior art keywords
- water
- path
- temperature
- amount
- boiler
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 272
- 238000000034 method Methods 0.000 claims description 17
- 231100000078 corrosive Toxicity 0.000 claims description 14
- 231100001010 corrosive Toxicity 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 239000008400 supply water Substances 0.000 claims description 9
- 150000003568 thioethers Chemical class 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 241000152160 Ira Species 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Description
上記課題を解決するために、本発明は以下の手段を採用する。
本発明は、火炉からの排ガスと熱交換する温水加熱器に給水する第１経路と、前記温水加熱器の給水出口からボイラに給水する第２経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、前記温度検出手段で検出される温度が前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、を具備し、前記制御手段は、前記第１所定温度以上となり、前記第１経路の水量をゼロにし、前記第３経路に給水の全量を流通させる制御をした後、前記第１経路で水が蒸気化されるのに必要な熱量の演算結果と、前記温水加熱器に与えうる熱量の推定結果とに基づいて、前記第１経路の水量と前記第３経路の水量を制御前の状態に戻すボイラ給水システムを提供する。
In order to solve the above problems, the present invention employs the following means.
The present invention provides a first path for supplying water to a hot water heater that exchanges heat with exhaust gas from a furnace, a second path for supplying water to a boiler from a water supply outlet of the hot water heater, and the hot water branched from the first path A third path for bypassing the heater and supplying water to the boiler; temperature detection means for detecting the temperature of water flowing through the second path; the amount of water flowing through the first path; The flow rate adjusting means for adjusting the ratio of the amount of water flowing through the path, and the flow rate adjustment so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature below the evaporation temperature of water in the hot water heater. Control means for adjusting the means, and the control means is configured to control the temperature to be equal to or higher than the first predetermined temperature, to reduce the amount of water in the first path to zero, and to distribute the total amount of water supply to the third path. , Water in the first path Heat and operation results required for being vaporized, the based on the estimation result of the heat quantity that could cause the hot water heater, a boiler return water of water and the third path of the first path to the control state before Provide a water supply system.
本発明の構成によれば、第１経路を介して温水加熱器に水が供給され、温水加熱器に供給された水は火炉からの排ガスと熱交換され、熱交換後の水が温水加熱器の給水出口から第２経路を介してボイラに供給される。第１経路から分岐して温水加熱器をバイパスされ第３経路に流れる水は、温水加熱器を流通しないので温水加熱器で熱交換されずに、第１経路で給水された温度でボイラ側に供給される。第１経路を流通し温水加熱器で熱交換される水量と、第３経路に流通する水量は、温水加熱器の給水出口側である第２経路で計測される水の温度が、温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように調整される。
このように、温水加熱器による加熱のし過ぎによって給水された水が蒸気化される温度を下回る温度に第１所定温度を設定しておくことにより、火炉の排ガスによって熱交換する温水加熱器における蒸気化を簡便に防ぐことができる。また、従来は温水加熱器における蒸気化を防ぐための運転切替えを運転員によって手動で行っていたが、本発明によれば、オペレーションのミスを防ぐことができる。
また、このように、第２経路の水温だけで判定するのでなく、第１経路で生じる蒸気化に必要な熱量の演算結果と、温水加熱器に与えうる熱量の推定結果とに応じて判定することにより、水が蒸気化されることを安全に防ぐ。
According to the configuration of the present invention, water is supplied to the hot water heater via the first path, the water supplied to the hot water heater is heat-exchanged with the exhaust gas from the furnace, and the water after the heat exchange is the hot water heater. Is supplied to the boiler through the second path from the water supply outlet. The water that is branched from the first path and bypasses the hot water heater and flows to the third path does not flow through the hot water heater, so heat is not exchanged by the hot water heater, and the water is supplied to the boiler at the temperature supplied by the first path. Supplied. The amount of water flowing through the first path and heat exchanged by the hot water heater and the amount of water flowing through the third path are determined by the temperature of the water measured by the second path on the water supply outlet side of the hot water heater. It adjusts so that it may become smaller than the 1st predetermined temperature lower than the evaporation temperature of water.
Thus, in the hot water heater which heat-exchanges with the exhaust gas of a furnace by setting the 1st predetermined temperature to the temperature lower than the temperature by which the water supplied by overheating by the hot water heater is vaporized, Vaporization can be easily prevented. Conventionally, the operation switching for preventing vaporization in the hot water heater has been manually performed by the operator. However, according to the present invention, an operation error can be prevented.
In addition, as described above, the determination is not made only based on the water temperature of the second path, but is determined according to the calculation result of the amount of heat necessary for vaporization generated in the first path and the estimation result of the amount of heat that can be given to the hot water heater. This prevents water from being vaporized safely.
上記ボイラ給水システムは、前記火炉が、硫黄化物等の腐食成分を含まない燃料を用いる場合に給水の温度を制御して、前記腐食成分を含む燃料を用い給水の温度を制御しない場合の前記第１経路の給水温度より低温の水を第１経路に給水することとしてもよい。 The boiler water supply system controls the temperature of the feed water when the furnace uses a fuel that does not contain corrosive components such as sulfides and does not control the temperature of the feed water using the fuel that contains the corrosive components. Water having a temperature lower than the water supply temperature of one path may be supplied to the first path.
硫黄化物等の腐食成分を含まない燃料を用いる場合には、温水加熱器の硫酸腐食の問題が発生しないため、硫黄化物などの腐食成分を含む燃料を用いる場合の給水温度よりも、低温の水を供給することができるので、給水の温度を制御して給水温度を下げる。これにより、温水加熱器における給水温度が下げられ、温水加熱器によって熱交換後の水温が、給水の温度を制御しない場合より抑えられる。 When using fuel that does not contain corrosive components such as sulphide, the problem of sulfuric acid corrosion of hot water heaters does not occur, so the temperature of the water is lower than the water supply temperature when using fuel containing corrosive components such as sulphide. Therefore, the feed water temperature is lowered by controlling the feed water temperature. Thereby, the feed water temperature in a warm water heater is lowered, and the water temperature after heat exchange by a warm water heater is suppressed compared with the case where the temperature of feed water is not controlled.
上記ボイラ給水システムの前記制御手段は、前記温度検出手段によって計測される水の温度と、前記第１所定温度との温度差に応じて、前記第１経路に流通させる水量と前記第３経路に流通させる水量との分配を調整することとしてもよい。 The control means of the boiler water supply system is configured to adjust the amount of water to be circulated in the first path and the third path according to a temperature difference between the temperature of the water measured by the temperature detection means and the first predetermined temperature. It is good also as adjusting distribution with the amount of water to distribute | circulate.
これにより、温度検出手段によって計測される水の温度の微調整ができる。 Thereby, fine adjustment of the temperature of the water measured by a temperature detection means can be performed.
上記ボイラ給水システムは、前記ボイラから前記温水加熱器に排ガスを供給する排ガスラインにおいて、前記温水加熱器をバイパスする排ガスバイパスラインと、前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、前記制御手段は、前記温度検出手段で計測される温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にするとしてもよい。 The boiler water supply system includes: an exhaust gas bypass line that bypasses the hot water heater in an exhaust gas line that supplies exhaust gas from the boiler to the hot water heater; and a bypass valve provided on a path of the exhaust gas bypass line. Further, the control unit may open the bypass valve when the temperature measured by the temperature detection unit is equal to or higher than the first predetermined temperature.
本発明は、火炉からの排ガスと熱交換する温水加熱器に給水する第１経路と、前記温水加熱器の給水出口からボイラに給水する第２経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、前記温度検出手段で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、を具備し、前記火炉は、硫黄化物等の腐食成分を含まない燃料を用いる場合に給水の温度を制御して、前記腐食成分を含む燃料を用い給水の温度を制御しない場合の前記第１経路の給水温度より低温の水を前記第１経路に給水するボイラ給水システムを提供する。The present invention provides a first path for supplying water to a hot water heater that exchanges heat with exhaust gas from a furnace, a second path for supplying water to a boiler from a water supply outlet of the hot water heater, and the hot water branched from the first path A third path for bypassing the heater and supplying water to the boiler; temperature detection means for detecting the temperature of water flowing through the second path; the amount of water flowing through the first path; The flow rate adjusting means for adjusting the ratio of the amount of water flowing through the path, and the flow rate so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature below the evaporation temperature of water in the hot water heater. Control means for adjusting the adjusting means, and the furnace controls the temperature of the feed water when using fuel that does not contain corrosive components such as sulfides, and the temperature of the feed water using the fuel containing the corrosive components Before not controlling Cold water from the feed water temperature of the first path to provide a boiler water supply system for supplying water to said first path.
本発明は、火炉からの排ガスと熱交換する温水加熱器に給水する第１経路と、前記温水加熱器の給水出口からボイラに給水する第２経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、前記温度検出手段で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、を具備し、前記ボイラから前記温水加熱器に排ガスを供給する排ガスラインにおいて、前記温水加熱器をバイパスする排ガスバイパスラインと、前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、前記制御手段は、前記温度検出手段で計測される温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にするボイラ給水システムを提供する。The present invention provides a first path for supplying water to a hot water heater that exchanges heat with exhaust gas from a furnace, a second path for supplying water to a boiler from a water supply outlet of the hot water heater, and the hot water branched from the first path A third path for bypassing the heater and supplying water to the boiler; temperature detection means for detecting the temperature of water flowing through the second path; the amount of water flowing through the first path; The flow rate adjusting means for adjusting the ratio of the amount of water flowing through the path, and the flow rate so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature below the evaporation temperature of water in the hot water heater. An exhaust gas line for supplying exhaust gas from the boiler to the hot water heater, an exhaust gas bypass line for bypassing the hot water heater, and the exhaust gas bypass line. And a bypass valve provided on the path of the engine, wherein the control means opens the bypass valve when the temperature measured by the temperature detection means is equal to or higher than the first predetermined temperature. Provide boiler water supply system.
本発明は、温水加熱器の給水出口からボイラに給水する第２経路において、流通する水の温度を検出する第１過程と、前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、前記第１所定温度以上となり、前記第１経路の水量をゼロにし、前記第３経路に給水の全量を流通させる制御をした後、前記第１経路で水が蒸気化されるのに必要な熱量の演算結果と、前記温水加熱器に与えうる熱量の推定結果とに基づいて、前記第１経路の水量と前記第３経路の水量を制御前の状態に戻す第４過程とを有するボイラ給水方法を提供する。
また本発明は、温水加熱器の給水出口からボイラに給水する第２経路において、流通する水の温度を検出する第１過程と、前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、火炉が硫黄化物等の腐食成分を含まない燃料を用いる場合に給水の温度を制御して、前記腐食成分を含む燃料を用い給水の温度を制御しない場合の前記第１経路の給水温度より低温の水を前記第１経路に給水する第４過程とを有するボイラ給水方法を提供する。
また本発明は、温水加熱器の給水出口からボイラに給水する第２経路において、流通する水の温度を検出する第１過程と、前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、前記ボイラから前記温水加熱器に排ガスを供給する排ガスラインにおいて、前記温水加熱器をバイパスする排ガスバイパスラインと、前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、前記第１過程で検出された温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にする第４過程とを有するボイラ給水方法を提供する。
The present invention relates to a first process for detecting the temperature of the circulating water, a first path for supplying water to the hot water heater, and a first path for supplying water to the boiler from the water supply outlet of the hot water heater. A second step of branching and bypassing the hot water heater to adjust the amount of water flowing through the third path for supplying water to the boiler; and a temperature detected in the first step is the water detected in the hot water heater. to be less than the first predetermined temperature below the evaporation temperature, the amount of water flowing through the first path, and a third step of adjusting the proportion between the amount of water flowing into the third pathway, it becomes the first predetermined temperature or more , After controlling the amount of water in the first path to zero and distributing the entire amount of water supply to the third path, the calculation result of the amount of heat necessary for water to be vaporized in the first path, and the hot water Based on the estimation result of the amount of heat that can be given to the heater Te, it provides a boiler feedwater method and a fourth step of returning the water of water and the third path of the first path to control the state before.
The present invention also provides a first process for detecting the temperature of the circulating water, a first path for supplying water to the hot water heater, and a first path for supplying water to the boiler from the water supply outlet of the hot water heater. The temperature detected in the first process is a second process of adjusting the amount of water flowing through a third path that branches from the hot water heater and bypasses the hot water heater to supply water to the boiler. A third step of adjusting the ratio of the amount of water flowing through the first path and the amount of water flowing through the third path so as to be lower than a first predetermined temperature below the evaporation temperature of the furnace; When the fuel containing no corrosive component is used, the temperature of the feed water is controlled, and when the temperature of the feed water is not controlled using the fuel containing the corrosive component, water having a temperature lower than the feed water temperature of the first route is supplied to the first route. A fourth process of supplying water to To provide a water supply Ira way.
The present invention also provides a first process for detecting the temperature of the circulating water, a first path for supplying water to the hot water heater, and a first path for supplying water to the boiler from the water supply outlet of the hot water heater. The temperature detected in the first process is a second process of adjusting the amount of water flowing through a third path that branches from the hot water heater and bypasses the hot water heater to supply water to the boiler. A third step of adjusting a ratio between the amount of water flowing through the first path and the amount of water flowing through the third path so as to be lower than a first predetermined temperature lower than the evaporating temperature, and heating the hot water from the boiler In the exhaust gas line for supplying exhaust gas to the cooler, the exhaust gas bypass line for bypassing the hot water heater and a bypass valve provided on the path of the exhaust gas bypass line are further provided, and are detected in the first process. When the temperature becomes the first predetermined temperature or higher, it provides a boiler feedwater method and a fourth step of the bypass valve in an open state.
Claims (14)
前記温水加熱器の給水出口からボイラに給水する第２経路と、
前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、
前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、
前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、
前記温度検出手段で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、
を具備し、
前記制御手段は、前記第１所定温度以上となり、前記第１経路の水量をゼロにし、前記第３経路に給水の全量を流通させる制御をした後、
前記第１経路で水が蒸気化されるのに必要な熱量の演算結果と、前記温水加熱器に与えうる熱量の推定結果とに基づいて、前記第１経路の水量と前記第３経路の水量を制御前の状態に戻すボイラ給水システム。 A first path for supplying water to a hot water heater that exchanges heat with exhaust gas from the furnace;
A second path for supplying water to the boiler from a water supply outlet of the hot water heater;
A third path that branches from the first path and bypasses the hot water heater to supply water to the boiler;
Temperature detecting means provided in the second path for detecting the temperature of the flowing water;
Flow rate adjusting means for adjusting the ratio of the amount of water flowing through the first path and the amount of water flowing through the third path;
Control means for adjusting the flow rate adjusting means so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature lower than the evaporation temperature of water in the hot water heater;
Equipped with,
The control means, after controlling to become the first predetermined temperature or more, to reduce the amount of water in the first path to zero, and distribute the entire amount of water supply to the third path,
The amount of water in the first path and the amount of water in the third path based on the calculation result of the amount of heat necessary for water to be vaporized in the first path and the estimation result of the amount of heat that can be given to the hot water heater. Boiler water supply system to return the state before control .
前記温度検出手段で計測される温度が前記第１所定温度より小さい場合に、前記第１経路に給水の全量を流通させ、かつ、前記第３経路の水量をゼロにし、
前記温度検出手段で計測される温度が前記第１所定温度以上となった場合に、前記第１経路の水量をゼロにし、かつ、前記第３経路に給水の全量を流通させる請求項１から請求項５のいずれかに記載のボイラ給水システム。 The control means includes
When the temperature measured by the temperature detecting means is lower than the first predetermined temperature, the entire amount of water supply is circulated through the first path, and the amount of water in the third path is made zero,
When the temperature measured by the temperature detection means is equal to or higher than the first predetermined temperature, the amount of water in the first path is made zero, and the entire amount of water supply is circulated through the third path. The boiler water supply system in any one of claim | item 5 .
前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、 A bypass valve provided on a path of the exhaust gas bypass line,
前記制御手段は、前記温度検出手段で計測される温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にする請求項１から請求項７のいずれかに記載のボイラ給水システム。 The boiler supply water according to any one of claims 1 to 7, wherein the control means opens the bypass valve when a temperature measured by the temperature detection means is equal to or higher than the first predetermined temperature. system.
前記温水加熱器の給水出口からボイラに給水する第２経路と、
前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、
前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、
前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、
前記温度検出手段で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、
を具備し、
前記火炉は、硫黄化物等の腐食成分を含まない燃料を用いる場合に給水の温度を制御して、前記腐食成分を含む燃料を用い給水の温度を制御しない場合の前記第１経路の給水温度より低温の水を前記第１経路に給水するボイラ給水システム。 A first path for supplying water to a hot water heater that exchanges heat with exhaust gas from the furnace;
A second path for supplying water to the boiler from a water supply outlet of the hot water heater;
A third path that branches from the first path and bypasses the hot water heater to supply water to the boiler;
Temperature detecting means provided in the second path for detecting the temperature of the flowing water;
Flow rate adjusting means for adjusting the ratio of the amount of water flowing through the first path and the amount of water flowing through the third path;
Control means for adjusting the flow rate adjusting means so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature lower than the evaporation temperature of water in the hot water heater;
Equipped with,
The furnace controls the temperature of the feed water when using a fuel that does not contain corrosive components such as sulfides, and the feed water temperature of the first path when the temperature of the feed water is not controlled using the fuel containing the corrosive components. A boiler water supply system for supplying low-temperature water to the first path .
前記温水加熱器の給水出口からボイラに給水する第２経路と、
前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路と、
前記第２経路に設けられ、流通する水の温度を検出する温度検出手段と、
前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する流量調整手段と、
前記温度検出手段で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記流量調整手段を調整する制御手段と、
を具備し、
前記ボイラから前記温水加熱器に排ガスを供給する排ガスラインにおいて、前記温水加熱器をバイパスする排ガスバイパスラインと、
前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、
前記制御手段は、前記温度検出手段で計測される温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にするボイラ給水システム。 A first path for supplying water to a hot water heater that exchanges heat with exhaust gas from the furnace;
A second path for supplying water to the boiler from a water supply outlet of the hot water heater;
A third path that branches from the first path and bypasses the hot water heater to supply water to the boiler;
Temperature detecting means provided in the second path for detecting the temperature of the flowing water;
Flow rate adjusting means for adjusting the ratio of the amount of water flowing through the first path and the amount of water flowing through the third path;
Control means for adjusting the flow rate adjusting means so that the temperature detected by the temperature detecting means is smaller than a first predetermined temperature lower than the evaporation temperature of water in the hot water heater;
Equipped with,
In an exhaust gas line that supplies exhaust gas from the boiler to the hot water heater, an exhaust gas bypass line that bypasses the hot water heater;
A bypass valve provided on a path of the exhaust gas bypass line,
The said control means is a boiler water supply system which opens the said bypass valve, when the temperature measured by the said temperature detection means becomes more than the said 1st predetermined temperature .
前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、
前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、
前記第１所定温度以上となり、前記第１経路の水量をゼロにし、前記第３経路に給水の全量を流通させる制御をした後、前記第１経路で水が蒸気化されるのに必要な熱量の演算結果と、前記温水加熱器に与えうる熱量の推定結果とに基づいて、前記第１経路の水量と前記第３経路の水量を制御前の状態に戻す第４過程とを有するボイラ給水方法。 A first step of detecting the temperature of the circulating water in the second path of supplying water to the boiler from the water supply outlet of the hot water heater;
A second process of adjusting the amount of water flowing through the first path for supplying water to the hot water heater and the third path for branching from the first path and bypassing the hot water heater to supply water to the boiler;
The amount of water flowing through the first path and the amount of water flowing through the third path so that the temperature detected in the first process is lower than a first predetermined temperature below the evaporation temperature of water in the hot water heater. a third step of adjusting the proportion between,
The amount of heat necessary for the water to evaporate in the first path after the first predetermined temperature is reached, the amount of water in the first path is set to zero, and the entire amount of water supply is circulated through the third path. And a fourth process of returning the amount of water in the first path and the amount of water in the third path to the state before control based on the calculation result of the above and the estimation result of the amount of heat that can be given to the hot water heater .
前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、
前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、
火炉が硫黄化物等の腐食成分を含まない燃料を用いる場合に給水の温度を制御して、前記腐食成分を含む燃料を用い給水の温度を制御しない場合の前記第１経路の給水温度より低温の水を前記第１経路に給水する第４過程とを有するボイラ給水方法。 A first step of detecting the temperature of the circulating water in the second path of supplying water to the boiler from the water supply outlet of the hot water heater;
A second process of adjusting the amount of water flowing through the first path for supplying water to the hot water heater and the third path for branching from the first path and bypassing the hot water heater to supply water to the boiler;
The amount of water flowing through the first path and the amount of water flowing through the third path so that the temperature detected in the first process is lower than a first predetermined temperature below the evaporation temperature of water in the hot water heater. a third step of adjusting the proportion between,
When the furnace uses a fuel that does not contain corrosive components such as sulphide, the temperature of the feed water is controlled, and when the fuel containing the corrosive components is not used to control the temperature of the feed water, the temperature is lower than the feed water temperature of the first path. A boiler water supply method comprising: a fourth process of supplying water to the first path .
前記温水加熱器に給水する第１経路と、前記第１経路から分岐して前記温水加熱器をバイパスして前記ボイラに給水する第３経路とに流通する水量を調整する第２過程と、
前記第１過程で検出される温度が、前記温水加熱器における水の蒸発温度を下回る第１所定温度より小さくなるように、前記第１経路に流通する水量と、前記第３経路に流通する水量との割合を調整する第３過程と、
前記ボイラから前記温水加熱器に排ガスを供給する排ガスラインにおいて、前記温水加熱器をバイパスする排ガスバイパスラインと、前記排ガスバイパスラインの経路上に設けられたバイパス弁と、をさらに備え、前記第１過程で検出された温度が前記第１所定温度以上となった場合に、前記バイパス弁を開状態にする第４過程とを有するボイラ給水方法。 A first step of detecting the temperature of the circulating water in the second path of supplying water to the boiler from the water supply outlet of the hot water heater;
A second process of adjusting the amount of water flowing through the first path for supplying water to the hot water heater and the third path for branching from the first path and bypassing the hot water heater to supply water to the boiler;
The amount of water flowing through the first path and the amount of water flowing through the third path so that the temperature detected in the first process is lower than a first predetermined temperature below the evaporation temperature of water in the hot water heater. a third step of adjusting the proportion between,
In the exhaust gas line for supplying exhaust gas from the boiler to the hot water heater, the exhaust gas bypass line for bypassing the hot water heater, and a bypass valve provided on a path of the exhaust gas bypass line are further provided, the first A boiler water supply method comprising: a fourth step of opening the bypass valve when the temperature detected in the step becomes equal to or higher than the first predetermined temperature .
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015023977A JP6552833B2 (en) | 2015-02-10 | 2015-02-10 | Boiler water supply system, boiler equipped with the same, and boiler water supply method |
| KR1020187025619A KR102197740B1 (en) | 2015-02-10 | 2016-01-28 | Boiler feed-water system, boiler provided with said system, and boiler feed-water method |
| CN201680009182.6A CN107250666B (en) | 2015-02-10 | 2016-01-28 | The feed water system of boiler and have the boiler of the feed water system of boiler, boiler feedwater method |
| PCT/JP2016/052449 WO2016129395A1 (en) | 2015-02-10 | 2016-01-28 | Boiler feed-water system, boiler provided with said system, and boiler feed-water method |
| KR1020177020327A KR101959154B1 (en) | 2015-02-10 | 2016-01-28 | Boiler feed-water system, boiler provided with said system, and boiler feed-water method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015023977A JP6552833B2 (en) | 2015-02-10 | 2015-02-10 | Boiler water supply system, boiler equipped with the same, and boiler water supply method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016148468A JP2016148468A (en) | 2016-08-18 |
| JP2016148468A5 true JP2016148468A5 (en) | 2017-12-28 |
| JP6552833B2 JP6552833B2 (en) | 2019-07-31 |
Family
ID=56614283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015023977A Active JP6552833B2 (en) | 2015-02-10 | 2015-02-10 | Boiler water supply system, boiler equipped with the same, and boiler water supply method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6552833B2 (en) |
| KR (2) | KR102197740B1 (en) |
| CN (1) | CN107250666B (en) |
| WO (1) | WO2016129395A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6349946B2 (en) * | 2014-05-14 | 2018-07-04 | 三浦工業株式会社 | Boiler system |
| CN107859985A (en) * | 2017-12-11 | 2018-03-30 | 中煤科工清洁能源股份有限公司 | A kind of feed water system of boiler |
| JP2019152357A (en) * | 2018-03-01 | 2019-09-12 | 三菱重工エンジニアリング株式会社 | Exhaust gas cooler |
| JP7319769B2 (en) | 2018-10-03 | 2023-08-02 | 三菱重工マリンマシナリ株式会社 | Exhaust heat recovery system, ship, and exhaust heat recovery device operating method |
| CN109869710A (en) * | 2019-03-14 | 2019-06-11 | 东方菱日锅炉有限公司 | Waste heat boiler tail portion deoxygenation heating system |
| JP7311990B2 (en) * | 2019-03-22 | 2023-07-20 | 荏原環境プラント株式会社 | Exhaust heat recovery boiler and method for controlling temperature of heat transfer tube of exhaust heat recovery boiler |
| KR102256414B1 (en) * | 2019-09-02 | 2021-05-26 | 비에이치아이(주) | Heat recovery boiler system |
| KR102435061B1 (en) * | 2020-12-15 | 2022-08-23 | 대림로얄이앤피(주) | Boiler to increase exhaust heat recovery efficiency through complex heat exchanger |
| US20220275936A1 (en) * | 2021-02-26 | 2022-09-01 | Outokumpu Stainless USA. LLC | Cooling system for steel production system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131908U (en) * | 1983-02-25 | 1984-09-04 | 株式会社東芝 | Combined cycle power plant |
| JPS6081401U (en) * | 1983-11-10 | 1985-06-06 | 宇部興産株式会社 | waste heat boiler |
| JPS61186579A (en) * | 1985-02-07 | 1986-08-20 | 東レ株式会社 | Production of creped fabric |
| JPS6390703U (en) * | 1986-12-03 | 1988-06-13 | ||
| JPH0275802A (en) | 1988-09-13 | 1990-03-15 | Toshiba Corp | Waste heat recovery boiler |
| JP2918453B2 (en) * | 1994-07-14 | 1999-07-12 | 日立造船株式会社 | Method and apparatus for controlling exhaust gas temperature at startup in refuse incinerator |
| JPH08327001A (en) | 1995-06-06 | 1996-12-10 | Babcock Hitachi Kk | Waste heat recovery boiler and operating method therefor |
| JPH09126409A (en) * | 1995-11-01 | 1997-05-16 | Babcock Hitachi Kk | Method and device for temperature control of feed-water heater |
| JP5040413B2 (en) * | 2007-04-19 | 2012-10-03 | 三浦工業株式会社 | Auxiliary boiler |
| JP5128624B2 (en) * | 2010-03-23 | 2013-01-23 | 株式会社新来島どっく | Exhaust gas economizer circulating water system |
| CN202166043U (en) * | 2011-06-17 | 2012-03-14 | 中国石油天然气股份有限公司 | Device for improving boiler efficiency of waste heat boiler |
| CN103256644B (en) * | 2013-04-11 | 2015-07-08 | 杭州锅炉集团股份有限公司 | Low-pressure expanded economizer system |
| CN103939885B (en) * | 2014-03-28 | 2016-03-09 | 上海发电设备成套设计研究院 | A kind of feedwater displaced type economizer system put into operation for denitration device whole process |
-
2015
- 2015-02-10 JP JP2015023977A patent/JP6552833B2/en active Active
-
2016
- 2016-01-28 KR KR1020187025619A patent/KR102197740B1/en active IP Right Grant
- 2016-01-28 CN CN201680009182.6A patent/CN107250666B/en active Active
- 2016-01-28 KR KR1020177020327A patent/KR101959154B1/en active IP Right Grant
- 2016-01-28 WO PCT/JP2016/052449 patent/WO2016129395A1/en active Application Filing
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2016148468A5 (en) | ||
| JP5577135B2 (en) | Water heater | |
| KR101959154B1 (en) | Boiler feed-water system, boiler provided with said system, and boiler feed-water method | |
| US9789972B2 (en) | Fuel and thermal management system | |
| JP7248378B2 (en) | Method for operating ship cooling system | |
| KR101611089B1 (en) | Hot water supply device | |
| JP2011163660A (en) | Hot water supply system | |
| JP5793450B2 (en) | Heat pump heat source system | |
| US20160230700A1 (en) | Exhaust heat recovery apparatus of engine | |
| CN105299728A (en) | Hot water supply and heat supply system | |
| JP5319502B2 (en) | Heat pump heating system | |
| JPWO2017037810A1 (en) | LNG vaporization system for ships, ship equipped with the same, and LNG vaporization method for ships | |
| JP2017067375A (en) | Heating device | |
| JP6581396B2 (en) | Binary power generation system and binary power generation method | |
| JP5241576B2 (en) | Hot water system | |
| US9416961B2 (en) | Boiler connection system | |
| JP6228881B2 (en) | Heat source equipment | |
| EP2077423A1 (en) | Regulation of flow temperature of a liquid in a heating circuit | |
| JP2017044413A (en) | Composite heat source machine | |
| JP2019178690A (en) | Liquefied natural gas vaporizer | |
| US11333348B2 (en) | Exhaust gas cooler | |
| JP6691385B2 (en) | Drain outlet temperature control system and boiler system | |
| KR20180065262A (en) | Steam heater control system and control method | |
| JP3738236B2 (en) | Heat source machine | |
| JPS588210A (en) | Heat medium flow control system for ranking cycle to flow variations liquefied natural gas |