JPH0428915A - Soot blower device and operation thereof - Google Patents
Soot blower device and operation thereofInfo
- Publication number
- JPH0428915A JPH0428915A JP2133186A JP13318690A JPH0428915A JP H0428915 A JPH0428915 A JP H0428915A JP 2133186 A JP2133186 A JP 2133186A JP 13318690 A JP13318690 A JP 13318690A JP H0428915 A JPH0428915 A JP H0428915A
- Authority
- JP
- Japan
- Prior art keywords
- soot blower
- air heater
- soot
- fire
- 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.)
- Pending
Links
- 239000004071 soot Substances 0.000 title claims abstract description 90
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 8
- 206010061218 Inflammation Diseases 0.000 abstract 1
- 206010037660 Pyrexia Diseases 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000004054 inflammatory process Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 238000011017 operating method Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はスートブロワ装置およびスートブロワ運転方法
に係り、特に発電用ボイラの排ガス煙道に設置されたエ
アヒータあるいは脱硝装置に堆積した未燃ダスト火災時
の消火を自動的に行うスートブロワ装置および運転方法
に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a soot blower device and a soot blower operating method, and particularly to a soot blower device and a soot blower operating method, and particularly in the event of a fire caused by unburned dust deposited on an air heater or denitrification device installed in the exhaust gas flue of a power generation boiler. This invention relates to a soot blower device and operating method for automatically extinguishing a fire.
従来のボイラ用スートブロワ運転システムは、噴射媒体
が蒸気の場合には、通常当該ボイラからの蒸気を使用し
ている。また、スートブロワの運転順序は通常ボイラの
燃焼ガスの上流側より下流側へと複数個のブロックに分
割された伝熱管ブロックごとに設置されたスートブロワ
を順次稼動してゆく連動運転が行われている。これは−
度に稼動するとボイラ蒸気圧力が変動、低下するためで
ある。エアヒータ用、あるいは脱硝装置用スートブロワ
は通常ボイラ用スートブロワが終ってから運転される。Conventional boiler soot blower operating systems typically use steam from the boiler when the injection medium is steam. In addition, the order of operation of the soot blowers is usually linked operation in which the soot blowers installed in each heat transfer tube block, which is divided into multiple blocks, are operated one after another from the upstream side of the combustion gas of the boiler to the downstream side. . This is-
This is because the boiler steam pressure fluctuates and decreases when the boiler is operated at different times. A soot blower for an air heater or a denitrification device is usually operated after a soot blower for a boiler is finished.
その場合でもスートブロワの運転は日に３回〜１回と間
歇運転であり、１サイクル運転が終了すると蒸気元弁は
閉じている。蒸気噴射スートブロワの運転に際しては、
スートブロワ運転前に蒸気供給用蒸気配管を予め暖め、
その時発生するドレンを抜いて、スートブロワから蒸気
とともにドレンが噴射されないようにしている。このた
め、通常１５分〜３０分ウオーミング作業を行っている
。従来、スートブロワはエアヒータや脱硝装置に堆積し
たダストを吹きとばして除去するために使用されており
、未燃分を含んだダストがエアヒータ部等に堆積し発火
した際、スートブロワ装置により蒸気などをブローイン
グして消火することができるようには考慮されていない
。Even in that case, the soot blower is operated intermittently, three to once a day, and the steam source valve is closed when one cycle of operation is completed. When operating a steam injection soot blower,
Before operating the soot blower, warm up the steam supply piping in advance.
The condensate generated at that time is removed to prevent it from being sprayed together with steam from the soot blower. For this reason, warming work is usually performed for 15 to 30 minutes. Conventionally, soot blowers have been used to blow away and remove dust that has accumulated on air heaters and denitrification equipment.When dust containing unburned substances accumulates on air heaters and ignites, soot blowers blow out steam, etc. It is not designed to be able to extinguish the fire.
前記従来技術はエアヒータ、脱硝装置など排ガス温度の
低い個所において未燃分を含んだダストが堆積して発火
した際、直ちに消火するための処置が考慮されておらず
、火災に対して問題があった。The above-mentioned conventional technology does not take into consideration measures to extinguish the fire immediately when dust containing unburned substances accumulates and ignites in areas where the exhaust gas temperature is low, such as air heaters and denitrification equipment, and there are problems with fires. Ta.
本発明の目的は、発火を逸速く検出し直ちにスートブロ
ワを運転し消火することにある。An object of the present invention is to quickly detect ignition and immediately operate a soot blower to extinguish the fire.
上記した従来技術の問題点は、ボイラ本体内の伝熱管群
とボイラ本体下流の排ガス煙道内に設けたエアヒータお
よび／または脱硝装置の各々に設置されたスートブロワ
と、各スートブロワに蒸気を供給する蒸気配管と、それ
らのスートブロワを設置場所に応じ所定順序で順次作動
させる装置とを備えたスートブロワ装置において、エア
ヒータおよび／または脱硝装置に火災検知器を設けると
ともに、上記火災検知器からの検知信号に基づき前記作
動順序にかかわらず、ただちに火災を検知したエアヒー
タおよび／または脱硝装置に設置されたスートブロワを
作動させる装置を設けたことを特徴とするスートブロワ
装置、
およびボイラ本体内に設置された複数個の伝熱管群と本
体下流煙道内に設置されたエアヒータおよび／または脱
硝装置の各々に設けたスートブロワを、設置場所ごとに
グループ化し、このスートブロワグループごとに蒸気を
供給して所定順序で順次作動させるスートブロワ装置の
運転方法において、エアヒータおよび／または脱硝装置
での火災発生時にはそれを検知して信号を発生するごと
くなし、この検知信号に基づき他のスートブロワの運転
を中止し、火災の発生したエアヒータおよび／または脱
硝装置に設けたスートブロワを優先的に運転するごとく
なしたことを特徴とするスートブロワ装置の運転方法に
より解決される。The problem with the conventional technology described above is that the soot blowers installed in each of the heat exchanger tube group in the boiler main body, the air heater and/or denitrification device installed in the exhaust gas flue downstream of the boiler main body, and the steam that supplies steam to each soot blower In a soot blower device equipped with piping and a device that sequentially operates the soot blowers in a predetermined order depending on the installation location, a fire detector is installed in the air heater and/or the denitrification device, and a fire detector is installed based on the detection signal from the fire detector. A soot blower device characterized by being equipped with a device that immediately activates a soot blower installed in an air heater and/or denitrification device that detects a fire, regardless of the operating order, and a plurality of transmissions installed in a boiler main body. A soot blower device that groups soot blowers installed in a group of heat tubes and air heaters and/or denitrification devices installed in a flue downstream of the main body by installation location, supplies steam to each soot blower group, and operates them sequentially in a predetermined order. In this operating method, when a fire occurs in an air heater and/or denitrification device, it is detected and a signal is generated, and based on this detection signal, the operation of other soot blowers is stopped, and the air heater and/or denitrification device in which the fire occurred is stopped. The problem is solved by a method of operating a soot blower device, which is characterized in that the soot blower provided in the denitrification device is operated preferentially.
［実施例〕
第１図に示すようにボイラ３０の燃焼ガスはバーナｌの
ある火炉３より再熱器２０、過熱器２１、節炭器２２を
通り温度が低下していく。ボイラ本体内より出た燃焼ガ
スは脱硝装置２３に入りガス中のＮＯｘ （窒素酸化物
）を除去されたのち、エアヒータ７に導かれ煙突から搬
出される前にボイラへの燃焼用空気を暖める。排ガス中
の未燃分を含むダストは脱硝装置に付着したり、エアヒ
ータのコーナ部等に堆積しやすいが、ボイラの運転状態
が変化し排ガス温度が上昇した場合に上記堆積ダストが
発火することがある。そこで本発明においては、エアヒ
ータ７および脱硝装置２３のダストの堆積しやすい個所
に熱電対６．６ａを設置し温度を監視するとともにスー
トブロワ５．５ａを設ける。[Embodiment] As shown in FIG. 1, combustion gas from a boiler 30 passes through a reheater 20, a superheater 21, and an economizer 22 from a furnace 3 with a burner 1, and its temperature decreases. The combustion gas discharged from the boiler main body enters the denitrification device 23 to remove NOx (nitrogen oxides) from the gas, and then is led to the air heater 7 to warm the combustion air to the boiler before being carried out from the chimney. Dust containing unburned components in the exhaust gas tends to adhere to the denitrification equipment or accumulate in the corners of the air heater, but if the operating conditions of the boiler change and the exhaust gas temperature rises, the accumulated dust can ignite. be. Therefore, in the present invention, thermocouples 6.6a are installed at locations of the air heater 7 and the denitrification device 23 where dust tends to accumulate to monitor the temperature, and a soot blower 5.5a is also provided.
第２図はスートブロワ蒸気源の系統を示す。通常は当該
ボイラ等の蒸気源１０からの蒸気を導いているが、当該
ボイラからの蒸気が使用できない時でもエアヒータスー
トブロワ５や脱硝装置スートブロワ５ａが運転できるよ
うにバックアップ蒸気源１５（補助ボイラ等）を接続し
ておく。Figure 2 shows the soot blower steam source system. Normally, steam is guided from a steam source 10 such as the boiler, but a backup steam source 15 (auxiliary boiler, etc.) is provided so that the air heater soot blower 5 and the denitrification device soot blower 5a can operate even when steam from the boiler cannot be used. Connect it.
第２図において、４はボイラ内の伝熱管群を掃除するた
めのスートブロワである。１１と１６は蒸気元弁、１２
と１７はスートブロワに供給する蒸気圧を調整するため
の減圧弁である。なお、１８はドレン弁であり、通常の
スートブロワ運転に際し、蒸気配管を暖めたのち、正式
運転に入るが、配管のウオーミング中に生じたドレンを
系外に排出するためのものである。これを暖管操作とい
うことにする。In FIG. 2, 4 is a soot blower for cleaning a group of heat exchanger tubes in the boiler. 11 and 16 are steam source valves, 12
and 17 are pressure reducing valves for adjusting the steam pressure supplied to the soot blower. The drain valve 18 is used to discharge drain generated during warming of the piping to the outside of the system, which is used to warm up the steam piping during normal soot blower operation before entering formal operation. This is called warm pipe operation.
第４図は異常事態が発生していない通常時のスートブロ
ワの運転フローを示している。起動操作をしてからスー
トブロワの運転が可能になるまで２０分以上を要する。FIG. 4 shows the operational flow of the soot blower during normal operation when no abnormal situation occurs. It takes more than 20 minutes after starting the soot blower to be able to operate it.
第２図において、スートブロワ起動に際しては、特定の
スートブロワのみを運転する単独運転か、多数の場所に
設置したスートブロワを予め定められた順序にしたがっ
て順次運転してゆく連動運転かを選択する。まずドレン
弁１８を開け、ついで蒸気元弁１１を開け、減圧弁１２
をウオーミング開度に設定する。これによりスートブロ
ワへの蒸気配管が暖められ、生じたドレンは外部に放出
される。この状態が１５〜３０分間続けられたのち、ド
レン弁１８を閉じる。ついで減圧弁１２をスートプロワ
運転に適した開度にして準備が完了する。In FIG. 2, when starting the soot blower, a selection is made between an independent operation in which only a specific soot blower is operated, and an interlocking operation in which soot blowers installed at multiple locations are sequentially operated in a predetermined order. First, open the drain valve 18, then open the steam source valve 11, and then open the pressure reducing valve 12.
Set to the warming opening. This warms the steam piping to the soot blower, and the resulting condensate is discharged to the outside. After this state continues for 15 to 30 minutes, the drain valve 18 is closed. Next, the pressure reducing valve 12 is set to an opening degree suitable for soot blower operation, and preparation is completed.
その後ボイラ用スートブロワ順序運転に入り、ボイラ本
体内各伝熱管群ごとにスートブロワを行う。After that, the soot blower for the boiler enters sequential operation, and the soot blower is operated for each group of heat exchanger tubes in the boiler main body.
これが終了したのち、ボイラ本体外の下流煙道に設置さ
れたエアヒータ（ＡＨ）や脱硝装置についてのスートブ
ロワを実施し、完了後蒸気元弁１１を閉弁する。After this is completed, the air heater (AH) installed in the downstream flue outside the boiler main body and the soot blower for the denitrification device are implemented, and after completion, the steam source valve 11 is closed.
第３図には本発明になる異常事態発生時のスートブロワ
の運転フローを示している。ボイラが運転中ですべての
スートブロワが休止中にエアヒータに設げた熱電対６よ
り火災発生による温度高の信号がでた時警報を発すると
ともに、通常蒸気元弁１１を全開しく減圧弁１２も圧力
調整開度にする）直ちにエアヒータ用スートブロワ５を
運転する。エアヒータ用スートブロワは連続くり返し運
転とする。ＳＡＨスートブロワが低温側に２台、高温側
に２台ある時には、低温側２台同時運転、高温側２台同
時運転するようにプログラム化し効率よく運転し消火す
る。当該ボイラからの蒸気が使用できない時には熱電対
６からの温度高の警報がでた際には、バックアップ蒸気
源１５より蒸気を導き前記と同様のエアヒータスートブ
ロワ運転により消火する。FIG. 3 shows the operational flow of the soot blower according to the present invention when an abnormal situation occurs. When the boiler is in operation and all the soot blowers are at rest, when a signal of high temperature due to a fire is issued from the thermocouple 6 installed in the air heater, an alarm is issued, and the normal steam main valve 11 is fully opened and the pressure reducing valve 12 is also adjusted to adjust the pressure. (open) immediately operate the air heater soot blower 5. The soot blower for the air heater shall be operated continuously and repeatedly. When there are two SAH soot blowers on the low-temperature side and two on the high-temperature side, the system is programmed so that the two on the low-temperature side operate simultaneously and the two on the high-temperature side operate simultaneously to efficiently operate and extinguish the fire. When the steam from the boiler cannot be used and a high temperature alarm is issued from the thermocouple 6, steam is introduced from the backup steam source 15 and the fire is extinguished by the same air heater soot blower operation as described above.
なお、バックアップ蒸気源１５を使用することにより、
ボイラ起動時およびボイラ停止動作時にエアヒータ用ス
ートブロワを運転し火災予防運転も可能である。Note that by using the backup steam source 15,
Fire prevention operation is also possible by operating the soot blower for the air heater when the boiler is started and when the boiler is stopped.
以上のべたように火災発生時のスートプロワ運転は、配
管を暖めながら生じたドレンを外部に排出することは行
わず、むしろこのドレンを直ちに発火場所にブロクする
ことにより消火を行う。前記実施例ではエアヒータにつ
いて述べたが、脱硝装置についても全く同様に行うこと
ができる。As mentioned above, when operating a soot blower when a fire occurs, the drain generated while warming the piping is not discharged to the outside, but rather the fire is extinguished by immediately blocking this drain to the ignition site. In the above embodiment, an air heater was described, but the same can be applied to a denitrification device.
なお、エアヒータや脱硝装置における発火が検知された
場合、ボイラ本体内伝熱管に対するスートブロワが運転
中であったなら、そのスートブロワは直ちに噴射用イン
ナーチューブを後退させ、定位置に停止させるとともに
、以後のボイラ本体内スートブロワの運転は中止し、そ
れらを飛び越して、エアヒータ用スートブロワ（あるい
は脱硝装置用スートブロワ）を前記のように直ちに稼動
させるとともに、これを連続くり返し運転をさせる。If ignition is detected in the air heater or denitrification equipment, and if the soot blower for the heat exchanger tube in the boiler body is in operation, the soot blower immediately moves back the injection inner tube, stops it at the fixed position, and prevents the subsequent operation. The operation of the soot blower in the boiler main body is stopped, and the soot blower for the air heater (or the soot blower for the denitrification device) is immediately started as described above, and this operation is continuously repeated.
〔発明の効果］
本発明によれば、従来設備のスートブロワ装置をそのま
ま使用し、エアヒータ部、脱硝装置などで火災が発生し
た時ただちに消火でき被害を軽微におさえることが可能
となる。[Effects of the Invention] According to the present invention, a conventional soot blower device can be used as is, and when a fire occurs in an air heater section, denitrification device, etc., it can be extinguished immediately and damage can be minimized.
第１図はボイラ排ガス煙道内にエアヒータおよび脱硝装
置を設けた実施例図、第２図はスートブロワの配管系統
図、第３図は火災発生時の運転フロー図、第４図は通常
運転時の運転フロー図である。
１・・・バーナ、２・・・ウィンドボックス、３・・・
火炉、４・・・ボイラ用スートブロワ、５・・・エアヒ
ータ用スートブロワ、５ａ・・・脱硝装置用スートブロ
ワ、６．６ａ・・・熱電対、７・・・エアヒータ、８・
・・風道、９・・・煙道、１０・・・通常時スートブロ
ワ、１１・・・蒸気元弁、１２・・・減圧弁、１５・・
・バックアップ蒸気源、１８・・・ドレン弁、１９・・
・スチームトラップ、２０・・・再熱器、２１・・・過
熱器、２２・・・節炭器、２３・・・脱硝装置、３０・
・・ボイラ。
出願人 バブコック日立株式会社
代理人 弁理士 川 北 武 長Figure 1 is an example of installing an air heater and denitrification device in the boiler flue gas flue, Figure 2 is a soot blower piping system diagram, Figure 3 is an operational flow diagram in the event of a fire, and Figure 4 is during normal operation. It is an operation flow diagram. 1...burner, 2...wind box, 3...
Furnace, 4... Soot blower for boiler, 5... Soot blower for air heater, 5a... Soot blower for denitrification device, 6.6a... Thermocouple, 7... Air heater, 8.
... Air duct, 9... Flue, 10... Normal soot blower, 11... Steam source valve, 12... Pressure reducing valve, 15...
・Backup steam source, 18...Drain valve, 19...
・Steam trap, 20... Reheater, 21... Superheater, 22... Energy saver, 23... Denitrification device, 30...
··boiler. Applicant Babcock Hitachi Co., Ltd. Agent Patent Attorney Takeshi Kawakita
Claims (4)
ス煙道内に設けたエアヒータおよび／または脱硝装置の
各々に設置されたスートブロワと、各スートブロワに蒸
気を供給する蒸気配管と、それらのスートブロワを設置
場所に応じ所定順序で順次作動させる装置とを備えたス
ートブロワ装置において、エアヒータおよび／または脱
硝装置に火災検知器を設けるとともに、上記火災検知器
からの検知信号に基づき前記作動順序にかかわらず、た
だちに火災を検知したエアヒータおよび／または脱硝装
置に設置されたスートブロワを作動させる装置を設けた
ことを特徴とするスートブロワ装置。(1) Soot blowers installed in each of the heat transfer tube group in the boiler body and the air heater and/or denitrification device installed in the exhaust gas flue downstream of the boiler body, steam piping that supplies steam to each soot blower, and those soot blowers In a soot blower device equipped with a device that sequentially operates the air heater and/or the denitrification device in a predetermined order depending on the installation location, a fire detector is provided in the air heater and/or the denitrification device, and based on the detection signal from the fire detector, regardless of the order of operation. A soot blower device comprising a device that immediately operates a soot blower installed in an air heater and/or a denitration device that detects a fire.
体下流煙道内に設置されたエアヒータおよび／または脱
硝装置の各々に設けたスートブロワを、設置場所ごとに
グループ化し、このスートブロワグループごとに蒸気を
供給して所定順序で順次作動させるスートブロワ装置の
運転方法において、エアヒータおよび／または脱硝装置
での火災発生時にはそれを検知して信号を発生するごと
くなし、この検知信号に基づき他のスートブロワの運転
を中止し、火災の発生したエアヒータおよび／または脱
硝装置に設けたスートブロワを優先的に運転するごとく
なしたことを特徴とするスートブロワ装置の運転方法。(2) Group the soot blowers installed in each of the multiple heat exchanger tube groups installed in the boiler main body and the air heater and/or denitrification device installed in the flue downstream of the main body by installation location, and group each soot blower group. In a method of operating a soot blower device that supplies steam to the air heater and/or denitrification device and operates them in a predetermined order, if a fire occurs in the air heater and/or the denitrification device, it is detected and a signal is generated, and based on this detection signal, other soot blowers are activated. 1. A method for operating a soot blower device, characterized in that the soot blower installed in the air heater and/or the denitrification device in which the fire occurred is preferentially operated.
置に設けたスートブロワの優先運転は、暖管操作を行う
ことなく、直ちにスートブロワ運転に入ることを特徴と
する請求項（２）記載のスートブロワ装置の運転方法。(3) The soot blower device according to claim (2), wherein the priority operation of the soot blower installed in the air heater and/or denitrification device where a fire has occurred is to immediately start soot blower operation without performing warm pipe operation. how to drive.
置に設けたスートブロワの優先運転は、連続くり返えし
運転とすることを特徴とする請求項（２）記載のスート
ブロワ装置の運転方法。(4) The method of operating a soot blower device according to claim (2), wherein the preferential operation of the soot blower installed in the air heater and/or denitrification device in which the fire occurred is continuous and repeated operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2133186A JPH0428915A (en) | 1990-05-23 | 1990-05-23 | Soot blower device and operation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2133186A JPH0428915A (en) | 1990-05-23 | 1990-05-23 | Soot blower device and operation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0428915A true JPH0428915A (en) | 1992-01-31 |
Family
ID=15098708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2133186A Pending JPH0428915A (en) | 1990-05-23 | 1990-05-23 | Soot blower device and operation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428915A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307617A (en) * | 2013-06-05 | 2013-09-18 | 西安热工研究院有限公司 | Pneumatic dust cleaning device of boiler |
| CN112815347A (en) * | 2021-02-02 | 2021-05-18 | 山东上奥电力科技有限公司 | Intelligent soot blowing closed-loop control system, method and device for power station boiler |
-
1990
- 1990-05-23 JP JP2133186A patent/JPH0428915A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307617A (en) * | 2013-06-05 | 2013-09-18 | 西安热工研究院有限公司 | Pneumatic dust cleaning device of boiler |
| CN112815347A (en) * | 2021-02-02 | 2021-05-18 | 山东上奥电力科技有限公司 | Intelligent soot blowing closed-loop control system, method and device for power station boiler |
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