JPH01134101A - Intermittent blow device for boiler - Google Patents
Intermittent blow device for boilerInfo
- Publication number
- JPH01134101A JPH01134101A JP62290633A JP29063387A JPH01134101A JP H01134101 A JPH01134101 A JP H01134101A JP 62290633 A JP62290633 A JP 62290633A JP 29063387 A JP29063387 A JP 29063387A JP H01134101 A JPH01134101 A JP H01134101A
- Authority
- JP
- Japan
- Prior art keywords
- evaporation
- boiler
- valve
- blow
- evaporation amount
- 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
- 230000008020 evaporation Effects 0.000 claims abstract description 40
- 238000001704 evaporation Methods 0.000 claims abstract description 40
- 238000007664 blowing Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000001186 cumulative effect Effects 0.000 description 12
- 230000010354 integration Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005061 slumber Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ボイラの間欠ブロー装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an intermittent blow device for a boiler.
ボイラのブロー作業には、ボイラ缶水の１度を下げる目
的と、缶底のかまどろを排出する目的の２つがある。前
者の缶水の４度低下の目的のためには一般的に連続ブロ
ー装置を取り付けて自動的に少量ずつ連続的にボイラの
缶水表面付近からブローする方法が取られている。しが
し後者のがまどろを排出するための間欠ブローは、従来
、ボイラの缶底に取り付けられたブロー管の開閉弁を作
業者が定期的に開閉して間欠ブローし、がまどろを排出
していた。Boiler blowing work has two purposes: to lower the temperature of boiler can water and to drain the boiler from the bottom of the can. For the former purpose of lowering the can water by 4 degrees Celsius, a method is generally used in which a continuous blowing device is installed to automatically and continuously blow small amounts of can water from near the surface of the boiler can water. The latter type of intermittent blowing to remove the slumber has traditionally been carried out by an operator periodically opening and closing the on-off valve of the blow pipe attached to the bottom of the boiler. It was being discharged.
従って、開閉弁を開く時機が不適当なことが多く、例え
ば、かまどろかたまり過ぎたり、あまりたまってもいな
いのにブローすることがあった。Therefore, the timing for opening the on-off valve is often inappropriate, and for example, the furnace may become too clogged or blow even though it has not accumulated much.
またボイラ用水によっては、１日数回も間欠ブローしな
ければならず、作業者に負担となっていた。Furthermore, depending on the boiler water, it may be necessary to blow it intermittently several times a day, which is a burden on the workers.
本発明は、従来の上述の問題点を解決しようとするもの
で、間欠ブローを行うべき時を自動的に判定して、かつ
作業者の手をわずられすことなく間欠ブローするボイラ
の間欠ブロー装置を提供することを目的とするものであ
る。The present invention aims to solve the above-mentioned conventional problems, and is intended to automatically determine when to perform intermittent blowing, and to perform intermittent blowing without the operator's intervention. The object of the present invention is to provide a blowing device.
本発明は、ボイラのブロー管に開閉弁を設け、蒸発Ｎ検
出装置と、該蒸発量検出装置により検出された蒸発量を
積算し、積算′蒸発量が所定の設定値に達したときに前
記開閉弁を開（制御装置とを設けたことを特徴とするボ
イラの間欠ブロー装置である。The present invention provides an on-off valve in the blow pipe of a boiler, integrates the amount of evaporation detected by the evaporation N detection device and the evaporation amount detection device, and when the cumulative amount of evaporation reaches a predetermined set value, the This is an intermittent blowing device for a boiler characterized by an opening/closing valve (control device).
本発明の間欠ブロー装置は、蒸発量検出装置と、該蒸発
量検出装置により検出された蒸発量を積算し、積算蒸発
量が所定の設定値に達したときにブロー管に設けた開閉
弁を開く制御装置とを備えているので、缶内が間欠ブロ
ーを行うべき状態に至る積算蒸発量を予め計算、実験等
により求めて設定値としておけば、間欠ブローを要する
的確な時機に、自動的にブローすることができる。The intermittent blowing device of the present invention includes an evaporation amount detection device, which integrates the amount of evaporation detected by the evaporation amount detection device, and when the cumulative amount of evaporation reaches a predetermined set value, opens an on-off valve provided in the blow pipe. Since it is equipped with a control device that opens the can, if the cumulative amount of evaporation that reaches the state in which intermittent blowing is required is determined in advance through calculations and experiments, and set as a set value, it will be automatically activated at the exact time when intermittent blowing is required. can be blown to.
本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described using the drawings.
１はボイラの缶底に接続されたブロー管で、開閉弁２を
備えている。３はボイラの積算蒸発量に基づいて開閉弁
２を自動的に操作する制御装置、５はボイラの蒸発量を
検出する検出装置である。1 is a blow pipe connected to the bottom of the boiler, and is equipped with an on-off valve 2. 3 is a control device that automatically operates the on-off valve 2 based on the cumulative amount of evaporation of the boiler, and 5 is a detection device that detects the amount of evaporation of the boiler.
検出装置５としては本実施例では蒸気管４に設けた流量
計（例えばパルス流量計）が用いられ、ボイラから発生
する蒸気流量から検出するようにしであるが、給水管に
流量計を設け、ボイラに供給される給水流量から検出す
ることもできる。In this embodiment, a flow meter (for example, a pulse flow meter) provided in the steam pipe 4 is used as the detection device 5, and detection is made from the flow rate of steam generated from the boiler, but a flow meter is provided in the water supply pipe, It can also be detected from the flow rate of water supplied to the boiler.
制御装置３には制御部６、タイマ部７、弁駆動部８、ブ
ロー水検出部９が設けられている。The control device 3 is provided with a control section 6, a timer section 7, a valve drive section 8, and a blow water detection section 9.
制御部６は、検出装置５からの流量信号（例えばパルス
信号）に基づき積算開始時点（例えばパルスカウント開
始時点）からの蒸発量を積算して積算蒸発！（例えばこ
れに相当するパルス数）を求め、計算、実験等により予
測して求めた間欠ブローを行うべき設定積算蒸発量（例
えば設定パルス数）と比較し、前記積算蒸発量（例えば
カウントパルス数）が前記設定積算蒸発Ｎ（例えば設定
パルス数）に達したとき出力信号（例えばカウントアツ
プ信号）を発するようになっている。The control unit 6 integrates the amount of evaporation from the integration start point (for example, the pulse count start point) based on the flow rate signal (for example, pulse signal) from the detection device 5, and calculates the integrated evaporation! (e.g., the number of pulses corresponding to this), and compare it with the set cumulative evaporation amount (e.g., the number of pulses) that should be used for intermittent blowing, which has been predicted by calculation, experiment, etc. ) is adapted to generate an output signal (for example, a count-up signal) when the set cumulative evaporation N (for example, a set number of pulses) is reached.
タイマ部７は、制御部６からの出力信号を受けてから開
閉弁２を開いておくべき所定の時間Ｔだけ持続する操作
信号を出力するようになっている。After receiving the output signal from the control section 6, the timer section 7 outputs an operation signal that lasts for a predetermined time T to keep the on-off valve 2 open.
弁駆動部８は、時間Ｔだけ持続する開き操作信号を開閉
弁２ （例えば電動ボール弁）に送り、時間Ｔの間、開
閉弁２を開の状態に保持するようになっている。The valve drive unit 8 sends an opening operation signal that lasts for a time T to the on-off valve 2 (for example, an electric ball valve), and holds the on-off valve 2 in an open state for the time T.
ブロー管１の開閉弁２より下流側にはブロー水排出を検
知する検出端として電極１０が設けられ、ブロー開始を
検出するようになっていて、ブロー水検出部９は電極１
０からの信号を受は制御部６における積算をリセット（
例えばカウントリセット）するように、制御部６に積算
リセット信号（例えばカウントリセット信号）を出力す
るようになっている。そして次の間欠ブロー時機の算出
の蒸発量の積算にそなえる。An electrode 10 is provided downstream of the on-off valve 2 of the blow pipe 1 as a detection end for detecting discharge of blow water, and detects the start of blowing.
When the signal from 0 is received, the integration in the control unit 6 is reset (
For example, an integration reset signal (for example, a count reset signal) is output to the control section 6 so as to reset the count. Then, prepare for the integration of evaporation amount for calculation of the next intermittent blow timing.
１）はブロー管１に開閉弁２と並列に設けた手動のブロ
ーコックである。1) is a manual blow cock installed in a blow pipe 1 in parallel with an on-off valve 2.
しかして、制御部６の設定積算蒸発量はボイラ用水の性
状にあわせて適宜値に設定する。Therefore, the cumulative evaporation amount set by the control unit 6 is set to an appropriate value according to the properties of the boiler water.
今、負荷が大であると、積算蒸発量が設定積算蒸発量に
時間ｔ、で達し、時間Ｔの間、自動的に開閉弁２が開い
て間欠ブローが行われる。間欠ブローが行われたことを
検知したら、積算をリセ。Now, when the load is large, the cumulative evaporation amount reaches the set cumulative evaporation amount at time t, and during time T, the on-off valve 2 is automatically opened to perform intermittent blowing. When it detects that intermittent blowing has been performed, it resets the integration.
トする。そして負荷が小であると、時間ｔ２で設定積算
蒸発量に達し、同様に自動的にブローが行われる。to If the load is small, the set cumulative evaporation amount is reached at time t2, and blowing is automatically performed in the same way.
このように、積算暴発量が設定積算蒸発量に達するたび
に自動的に間欠ブローが行われ、かまどろが排出される
。In this way, every time the cumulative amount of outburst reaches the set cumulative evaporation amount, intermittent blowing is automatically performed and the furnace is discharged.
この実施例では、電極１０、ブロー水検出部９を設けた
ので、実際にブロー水が排出されたことを確認してから
積算をリセットすることができる。In this embodiment, since the electrode 10 and the blow water detection section 9 are provided, the integration can be reset after confirming that the blow water has actually been discharged.
本発明のブロー装置は、蒸発量検出装置と、該蒸発量検
出装置により検出された蒸発量を積算し、積算蒸発量が
所定の設定値に達するたびにブロー管に設けた開閉弁を
開く制御装置とを備えているので、間欠ブローを要する
的確な時機に、自動的にブローすることができる。The blowing device of the present invention includes an evaporation amount detection device, and a control system that integrates the evaporation amount detected by the evaporation amount detection device and opens an on-off valve provided in a blow pipe each time the accumulated evaporation amount reaches a predetermined set value. Since it is equipped with a device, intermittent blowing can be performed automatically at the appropriate time.
第１図は本発明の実施例のフロー図、第２図はそのタイ
ムチャート図である。
ｌ・・・ブロー管、２・・・開閉弁、３・・・制御装置
、４・・・仄気管、５・・・検出装置、６・・・制御部
、７・・・タイマ部、８・・・弁駆動部、９・・・ブロ
ー水検出部、１０・・・Ｗｉ、１）・・・ブローコンク
。
特許出願人 株式会社 荏原製作所代理人 弁
理士 薬 師 稔代理人 弁理士
依 １） 孝 次 部代理人 弁理士 高 木
正 行第１図
笥２図
□ −一FIG. 1 is a flow diagram of an embodiment of the present invention, and FIG. 2 is a time chart thereof. l... Blow pipe, 2... Opening/closing valve, 3... Control device, 4... Air pipe, 5... Detection device, 6... Control section, 7... Timer section, 8 ...Valve drive unit, 9...Blow water detection unit, 10...Wi, 1)...Blow conc. Patent applicant Ebara Corporation Agent Patent attorney Pharmacist Minoru Agent Patent attorney
1) Takatsugu Department Agent Patent Attorney Takagi
Correct line Figure 1 Figure 2 □ -1
Claims (3)
置と、該蒸発量検出装置により検出された蒸発量を積算
し、積算蒸発量が所定の設定値に達したときに前記開閉
弁を開く制御装置とを設けたことを特徴とするボイラの
間欠ブロー装置。(1) An on-off valve is provided in the blow pipe of the boiler, and the evaporation amount detected by the evaporation amount detection device is integrated, and when the integrated amount of evaporation reaches a predetermined set value, the on-off valve is activated. An intermittent blowing device for a boiler, characterized in that it is provided with a control device for opening the blower.
出するものである特許請求の範囲第１項記載のボイラの
間欠ブロー装置。(2) The intermittent blowing device for a boiler according to claim 1, wherein the evaporation amount detection device detects the evaporation amount based on the steam flow rate.
出するものである特許請求の範囲第１項記載のボイラの
間欠ブロー装置。(3) The intermittent blowing device for a boiler according to claim 1, wherein the evaporation amount detection device detects the evaporation amount based on the flow rate of feed water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290633A JPH07101083B2 (en) | 1987-11-19 | 1987-11-19 | Boiler intermittent blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290633A JPH07101083B2 (en) | 1987-11-19 | 1987-11-19 | Boiler intermittent blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01134101A true JPH01134101A (en) | 1989-05-26 |
| JPH07101083B2 JPH07101083B2 (en) | 1995-11-01 |
Family
ID=17758502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62290633A Expired - Lifetime JPH07101083B2 (en) | 1987-11-19 | 1987-11-19 | Boiler intermittent blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07101083B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194203A (en) * | 1997-09-24 | 1999-04-09 | Seda Giken:Kk | Steam producing equipment |
| JP2013064514A (en) * | 2011-09-15 | 2013-04-11 | Miura Co Ltd | Boiler system |
| JP2016095091A (en) * | 2014-11-14 | 2016-05-26 | 株式会社サムソン | Boiler with thermal management device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616004A (en) * | 1979-07-19 | 1981-02-16 | Sumitomo Rubber Ind | Continuous boiler water blowdown apparatus |
| JPS62166203A (en) * | 1986-01-14 | 1987-07-22 | 株式会社 サムソン | Arithmetic concentrating blow device conformed to state of operation of boiler |
-
1987
- 1987-11-19 JP JP62290633A patent/JPH07101083B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616004A (en) * | 1979-07-19 | 1981-02-16 | Sumitomo Rubber Ind | Continuous boiler water blowdown apparatus |
| JPS62166203A (en) * | 1986-01-14 | 1987-07-22 | 株式会社 サムソン | Arithmetic concentrating blow device conformed to state of operation of boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194203A (en) * | 1997-09-24 | 1999-04-09 | Seda Giken:Kk | Steam producing equipment |
| JP2013064514A (en) * | 2011-09-15 | 2013-04-11 | Miura Co Ltd | Boiler system |
| JP2016095091A (en) * | 2014-11-14 | 2016-05-26 | 株式会社サムソン | Boiler with thermal management device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07101083B2 (en) | 1995-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040310 |