JP6413875B2 - Compressed air supply method when trouble of compressed air compressor stops - Google Patents

Compressed air supply method when trouble of compressed air compressor stops Download PDF

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JP6413875B2
JP6413875B2 JP2015063941A JP2015063941A JP6413875B2 JP 6413875 B2 JP6413875 B2 JP 6413875B2 JP 2015063941 A JP2015063941 A JP 2015063941A JP 2015063941 A JP2015063941 A JP 2015063941A JP 6413875 B2 JP6413875 B2 JP 6413875B2
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正洋 宇野
正洋 宇野
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JFE Steel Corp
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Description

本発明は、エネルギー分野における圧縮空気供給方法に関し、特に、圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法に関するものである。   The present invention relates to a compressed air supply method in the energy field, and more particularly to a compressed air supply method when trouble of a compressed air compressor stops.

従来の圧縮空気関連の異常検出技術に関しては、例えば、特許文献１に「オイルエア供給装置の異常検出方法」と題する技術が開示されている。この技術は、混合器で潤滑油と空気を混合し、オイルエアを生成して潤滑対象物に供給するオイルエア供給装置の異常検出方法であって、混合器への圧縮空気供給路に圧縮空気を供給する開閉弁を設け、かつ混合器から潤滑対象物へのオイルエア通路内に、開閉弁が閉じた時にオイルエア通路内の圧力を所定値に保持する逆止弁を配置し、開閉弁と逆止弁との間に配置した圧力検出手段により、開閉弁を閉じた時の開閉弁から逆止弁までの圧力を検出して異常を検出するものである。   As for conventional compressed air-related abnormality detection technology, for example, Patent Literature 1 discloses a technology entitled “Abnormality Detection Method for Oil-Air Supply Device”. This technology is an abnormality detection method for an oil / air supply device that mixes lubricating oil and air in a mixer, generates oil air, and supplies it to the object to be lubricated, and supplies compressed air to the compressed air supply path to the mixer A check valve is provided in the oil / air passage from the mixer to the object to be lubricated to keep the pressure in the oil / air passage at a predetermined value when the on / off valve is closed. Is detected by the pressure detection means arranged between the on-off valve and the check valve when the on-off valve is closed.

逆止弁から開閉弁までの間のオイルエア通路内の圧力を検出することから、オイルエア通路内の圧力低下を監視することができ、オイルエアを確実に潤滑対象物に搬送していることを検出することができる。   Since the pressure in the oil / air passage between the check valve and the open / close valve is detected, the pressure drop in the oil / air passage can be monitored, and it is detected that the oil / air is reliably conveyed to the lubrication target. be able to.

特開２００６−３００２９３号公報JP 2006-3000293 A

しかしながら、上記特許文献１に開示の技術は、オイルエア供給装置自身の異常検出はできるものの、圧縮空気を送出する圧縮空気送出コンプレッサー（以下、圧縮空気コンプレッサーまたはコンプレッサーとも記載）から圧縮空気の供給先である複数の工場に配管を経由して圧縮空気を供給する設備において、一または複数台の圧縮空気コンプレッサーのトラブルにより圧縮空気の供給が停止（以下、トラブル停止と略記）した場合に、どのように複数の工場に圧縮空気（以下、単に空気とも記載）を供給するかについてまでは開示がなされていない。   However, although the technique disclosed in Patent Document 1 can detect an abnormality in the oil-air supply device itself, the compressed air is supplied from a compressed air delivery compressor (hereinafter also referred to as a compressed air compressor or a compressor) that delivers compressed air. In a facility that supplies compressed air via piping to a plurality of factories, how is the supply of compressed air stopped due to a problem with one or more compressed air compressors (hereinafter abbreviated as trouble stop)? No disclosure has been made as to whether compressed air (hereinafter simply referred to as air) is supplied to a plurality of factories.

これまで、圧縮空気コンプレッサーがトラブル停止した際には、
（１）起動していない他の圧縮空気コンプレッサーを新たに起動する
（２）圧縮空気供給を受けている工場への圧縮空気供給を停止させる
といった操業上の緊急措置をとっていた。圧縮空気コンプレッサーのトラブル停止が発生すると、各工場へ圧縮空気を送る圧縮空気配管の内部の圧力低下や圧縮空気供給量の低下が生じ、供給先である全ての工場への圧縮空気供給に支障が発生するとともに、これらの圧縮空気供給における支障が上記（１）および（２）といった措置が完了するまでの間（例えば、１０〜１５分など）継続してしまうという課題があった。 Until now, when troubles with compressed air compressors have stopped,
(1) The other compressed air compressor which has not started is newly started. (2) Operational emergency measures have been taken such as stopping the compressed air supply to the factory receiving the compressed air supply. If troubles occur in the compressed air compressor, the pressure inside the compressed air piping that sends the compressed air to each factory and the compressed air supply volume will decrease, which will interfere with the supply of compressed air to all the factories that supply the products. There is a problem that, as it occurs, troubles in the supply of compressed air continue until the measures (1) and (2) are completed (for example, 10 to 15 minutes).

本発明は、上記問題に鑑みてなされたものであって、圧縮空気コンプレッサーのトラブル停止時に生ずる圧縮空気供給支障を最小限に抑えることができる、圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法を提供することを課題とする。   The present invention has been made in view of the above problems, and provides a compressed air supply method at the time of trouble stop of a compressed air compressor that can minimize the trouble of supplying compressed air that occurs at the time of trouble stop of the compressed air compressor. The issue is to provide.

上記課題は、以下の発明によって解決できる。
［１］複数の圧縮空気を送出する圧縮空気コンプレッサーから複数の工場に圧縮空気を供給する設備における、圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法であって、
前記圧縮空気コンプレッサーが有している送気能力、および圧縮空気の供給を停止する前記工場ごとの順番である停止優先順位を入力する、送気能力・停止優先順位の入力ステップと、
稼動中の圧縮空気コンプレッサーの送気量および供給中の工場の使用量を取り込む、送気量・使用量の取り込みステップと、
トラブル停止信号を受信し、トラブル停止に伴う供給不足分の圧縮空気量を計算する、供給不足分の圧縮空気量の計算ステップと、
前記停止優先順位と計算した供給不足分の圧縮空気量に基づき、供給停止する工場を特定し供給停止を行う、供給停止工場の特定と供給停止ステップと、
を有することを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。 The above problems can be solved by the following invention.
[1] A compressed air supply method at the time of trouble of a compressed air compressor in a facility for supplying compressed air to a plurality of factories from a compressed air compressor that sends out a plurality of compressed air,
An input step of an air supply capacity / stop priority order, which inputs an air supply capacity of the compressed air compressor, and a stop priority which is an order for each factory for stopping the supply of compressed air;
A step for capturing the amount of air flow and usage that captures the amount of air flow of the compressed air compressor that is in operation and the amount of factory usage that is being supplied,
Receiving a trouble stop signal, calculating a shortage of compressed air amount due to trouble stop, calculating a shortage of compressed air amount;
Based on the stop priority order and the amount of compressed air calculated for supply shortage, the supply stop factory is specified by specifying the factory to stop supply, and the supply stop step;
A method of supplying compressed air when trouble of a compressed air compressor stops.

［２］上記［１］に記載の圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法において、
前記供給停止工場の特定と供給停止ステップの後に、
供給停止をおこなった工場以外のその他工場に対しても、トラブル停止直前の圧縮空気使用量以下の供給量に制限する、停止対象外工場への供給量制限ステップを有することを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。 [2] In the compressed air supply method at the time of trouble stop of the compressed air compressor according to [1] above,
After identification of the supply stop factory and the supply stop step,
Compressed air characterized by having a supply amount limiting step to a factory other than the stop target, which limits the supply amount to the amount of compressed air used or less immediately before the trouble stop for other factories other than the factory that stopped the supply. Compressed air supply method when compressor trouble stops.

本発明によれば、圧縮空気コンプレッサーの送気能力、工場への供給を停止する停止優先順位、およびトラブル停止時の圧縮空気コンプレッサーの送気量と工場の使用量に基づいて、供給停止する工場を特定し供給停止するようにしたので、圧縮空気コンプレッサーのトラブル停止時に生ずる圧縮空気供給支障を最小限に抑えることができる。   According to the present invention, the factory which stops supply based on the air supply capacity of the compressed air compressor, the stop priority for stopping supply to the factory, and the amount of air supplied to the compressed air compressor at the time of trouble stop and the amount of use of the factory Thus, the supply stop is specified, so that it is possible to minimize the trouble in supplying the compressed air when the trouble of the compressed air compressor stops.

また、供給停止をおこなった工場以外のその他工場に対しても、トラブル停止直前の圧縮空気使用量以下の供給量に制限するようにしたので、その他工場の使用量増加を予防的に防ぐことができる。   In addition, other factories other than the one where the supply was stopped were restricted to a supply amount equal to or lower than the amount of compressed air used immediately before the trouble was stopped. it can.

本発明を適用する設備の装置構成例を示す図である。It is a figure which shows the apparatus structural example of the installation to which this invention is applied. 本発明に係る圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法の処理手順例を示す図である。It is a figure which shows the process sequence example of the compressed air supply method at the time of the trouble stop of the compressed air compressor which concerns on this invention.

以下、図面を参照して、本発明を実施するための形態について説明する。図１は、本発明を適用する設備の装置構成例を示す図である。図中、符号１ａ、ｂは圧縮空気送出コンプレッサー、１１ａ、ｂは吸込み口、１２ａ、ｂはオリフィス、１３ａ、ｂは吸込み弁、１４ａ、ｂは放風弁、１５ａ、ｂは吐出弁、２は圧縮空気配管、３ａ〜ｄは工場、３１ａ〜ｄは自動バルブ、および４は分散制御システムをそれぞれ表す。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an apparatus configuration example of equipment to which the present invention is applied. In the figure, reference numerals 1a and 1b indicate compressed air delivery compressors, 11a and b indicate suction ports, 12a and b indicate orifices, 13a and b indicate suction valves, 14a and b indicate air discharge valves, 15a and b indicate discharge valves, and 2 indicates Compressed air piping, 3a-d are factories, 31a-d are automatic valves, and 4 is a distributed control system.

この装置構成では、２台の圧縮空気コンプレッサー１ａ、ｂから圧縮空気配管２を経由して、４つの工場３ａ〜ｄへ圧縮空気を供給している。吸込み口１１ａ、ｂから吸い込まれた空気は、オリフィス１２ａ、ｂと吸込み弁１３ａ、ｂで流量を調節されたのちに、圧縮空気コンプレッサー１ａ、ｂで圧縮されて吐出弁１５ａ、ｂを経て、圧縮空気配管２に供給される。圧縮空気コンプレッサー１ａ、ｂから吐出弁１５ａ、ｂの途中には、圧縮空気を大気に逃がす放風弁１４ａ、ｂが設置されている。   In this apparatus configuration, the compressed air is supplied from the two compressed air compressors 1a and 1b to the four factories 3a to 3d via the compressed air pipe 2. The air sucked from the suction ports 11a and 11b is compressed by the compressed air compressors 1a and b after being adjusted in flow rate by the orifices 12a and 12b and the suction valves 13a and 13b, and then compressed by the discharge valves 15a and 15b. Supplied to the air pipe 2. In the middle of the discharge valves 15a and b from the compressed air compressors 1a and b, air discharge valves 14a and 14b for releasing the compressed air to the atmosphere are installed.

圧縮空気配管２からの圧縮空気は、自動バルブ３１ａ〜ｄを経て各工場３ａ〜ｄに供給される。圧縮空気供給にあたっては、分散制御システム（Distributed Control System；DCSとも略記）４が自動で各機器の運転状況の計測および制御を行っている。なお、装置構成として、DCSが上位プロコン（図示せず）から各機器の運転状況の情報を得て制御を行う場合もある。   Compressed air from the compressed air pipe 2 is supplied to each factory 3a-d via automatic valves 31a-d. In supplying compressed air, a distributed control system (abbreviated as DCS) 4 automatically measures and controls the operating status of each device. In addition, as a device configuration, there is a case where the DCS performs control by obtaining information on the operation status of each device from a host computer (not shown).

図２は、本発明に係る圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法の処理手順例を示す図である。図１の装置構成例で、圧縮空気コンプレッサー１ａがトラブル停止した場合の処理手順についての説明を以下に行っていく。   FIG. 2 is a diagram illustrating an example of a processing procedure of the compressed air supply method when the trouble of the compressed air compressor according to the present invention is stopped. In the apparatus configuration example of FIG. 1, a description will be given below of a processing procedure when the compressed air compressor 1 a stops in trouble.

先ず、トラブル停止する前にStep01として、予め、送気能力・停止優先順位をDCSに入力する。圧縮空気コンプレッサーが有している送気能力、およびトラブル停止が起こった場合に、供給先である工場に圧縮空気の供給を停止する順番である停止優先順位をつけておくものである。   First, before stopping the trouble, as Step 01, the air supply capability / stop priority is input to the DCS in advance. When the air supply capability of the compressed air compressor and a trouble stop occur, a stop priority order that is an order for stopping the supply of compressed air to the factory that is the supply destination is given.

例えば、圧縮空気コンプレッサー１ａおよび１ｂの送気能力を、それぞれα(kNm3/h)およびβ(kNm3/h)とし、工場３ａ〜ｄの停止優先順位を１〜４と設定したとして以下の説明を行う。 For example, assuming that the compressed air compressors 1a and 1b have air supply capacities α (kNm 3 / h) and β (kNm 3 / h), respectively, and the stop priorities of factories 3a to 3d are set to 1 to 4, Give an explanation.

次に、Step02として、稼動中の圧縮空気コンプレッサーの送気量および工場の使用量をそれぞれの流量計（図示せず）からDCSに取り込む。例えば、圧縮空気コンプレッサー１ａおよび１ｂの送気量を、それぞれγ(kNm3/h)およびδ(kNm3/h)と、工場３ａ〜ｄの使用量を、それぞれW(kNm3/h)、X(kNm3/h)、Y(kNm3/h)およびZ(kNm3/h)と取り込んだとする。 Next, as Step 02, the air supply amount of the operating compressed air compressor and the factory use amount are taken into the DCS from respective flow meters (not shown). For example, the amount of air supplied to the compressed air compressors 1a and 1b is set to γ (kNm 3 / h) and δ (kNm 3 / h), respectively, and the amount used in the factories 3a to d is set to W (kNm 3 / h), Assume that X (kNm 3 / h), Y (kNm 3 / h), and Z (kNm 3 / h) are captured.

そして、Step03で上位プロコンからDCSがトラブル停止信号を受信する、またはDCS で機器情報からトラブル停止と判断するまで、Step02のデータ取り込みは所定の時間間隔で繰り返す。Step03でトラブル停止信号を受信すれば、直前の取り込みデータを用いて、Step04で圧縮空気コンプレッサートラブル停止による供給不足分の圧縮空気量を計算する。   Then, until the DCS receives a trouble stop signal from the host computer in Step 03, or the DCS determines that the trouble is stopped from the device information, the data capture in Step 02 is repeated at a predetermined time interval. If the trouble stop signal is received in Step 03, the compressed air amount for the shortage of supply due to the trouble of the compressed air compressor trouble is calculated in Step 04 using the immediately preceding captured data.

ここでの計算は、［（トラブル停止直前の稼動中のコンプレッサー送気量の合計）−（トラブル停止後に稼動中のコンプレッサーの送気能力の合計）］との計算式で行うことが出来る。上述したように、圧縮空気コンプレッサー１ａがトラブル停止したとすれば、上記計算式による供給不足分の圧縮空気量は、［（γ＋δ）−β］(kNm3/h)と計算できる。 The calculation here can be performed by the following formula: [(total compressor air supply amount in operation immediately before trouble stop) − (total air supply capacity of compressor in operation after trouble stop)]. As described above, if the compressed air compressor 1a stops in trouble, the amount of compressed air due to insufficient supply according to the above calculation formula can be calculated as [(γ + δ) −β] (kNm 3 / h).

もし、計算結果がマイナスになるようであれば、残ったコンプレッサーの送気能力の合計でトラブル停止直前の送気量の合計を賄えるため、残ったコンプレッサーの送気量の合計をトラブル停止直前の送気量の合計まで上げる。   If the calculation result is negative, the total air supply capacity just before the trouble stop can be covered by the total air supply capacity of the remaining compressor. Raise the total air flow.

そして、Step05では、供給停止工場の特定と供給停止を行う。トラブル停止に伴う供給不足分の圧縮空気量［（γ＋δ）−β］に相当する使用量の工場をStep01で決めた停止優先順位に基づき停止させる。例えば、停止優先順位１の工場３ａの使用量W(kNm3/h)が、［（γ＋δ）−β］(kNm3/h)を上回っていれば、対象工場３ａの入口に設けた自動バルブ３１ａを自動閉止する。なお、停止優先順位１の工場３ａの使用量では不足する場合は、停止優先順位２の工場３ｂへと供給停止工場の範囲を拡げていく。これでも解消できない場合は、停止優先順位３の工場３ｃへと優先順位に基づいて供給停止工場の範囲を順次拡げていく。 In Step 05, the supply stop factory is specified and the supply is stopped. The factory of the used amount corresponding to the compressed air amount [(γ + δ) −β] corresponding to the shortage of supply accompanying the trouble stop is stopped based on the stop priority order determined in Step 01. For example, if the usage amount W (kNm 3 / h) of the factory 3a with the stop priority of 1 exceeds [(γ + δ) −β] (kNm 3 / h), an automatic valve provided at the inlet of the target factory 3a 31a is automatically closed. If the usage amount of the factory 3a with the stop priority 1 is insufficient, the range of the supply stop factory is expanded to the factory 3b with the stop priority 2. If this cannot be resolved, the range of the supply stop factories is sequentially expanded based on the priority order to the factory 3c having the stop priority order 3.

次のStep06では、停止対象外工場への供給量を制限する。これは、本発明による処理が終了するまでの間にその他工場の稼働状況が変化することによる、その他工場の使用量増加を予防的に防ぐ処理である。Step05で圧縮空気の供給停止をおこなった工場以外のその他工場に対しても、コンプレッサートラブル停止直前の圧縮空気使用量以下の供給量に自動で制限する。明らかに、工場の使用量が増加しないと予測できる場合は、このステップはスキップしても良い。   In the next Step 06, the supply amount to the non-stop target factory is limited. This is a process for preventively preventing an increase in the amount of use at other factories due to a change in the operating status of the other factories before the process according to the present invention is completed. For other factories other than the one that stopped supplying compressed air in Step 05, the supply amount is automatically limited to the amount of compressed air used or less immediately before the compressor trouble stops. Obviously, this step may be skipped if it can be predicted that the factory usage will not increase.

最後のStep07では、トラブル停止したコンプレッサーが復旧またはトラブル停止時に稼動してなかったコンプレッサーが起動を完了した場合は、供給停止および供給量制限を解除する。   In the final Step 07, when the compressor that has stopped in trouble is restored or the compressor that was not operating at the time of the trouble has been started, the supply stop and the supply amount restriction are canceled.

以上の処理手順より、コンプレッサーのトラブル停止時に生じる供給先である工場への圧縮空気供給支障を最小限に抑えることが出来るようになる。   From the above processing procedure, it is possible to minimize the trouble of supplying compressed air to the factory that is the supply destination that occurs when the compressor trouble stops.

１ａ、ｂ 圧縮空気コンプレッサー
１１ａ、ｂ 吸込み口
１２ａ、ｂ オリフィス
１３ａ、ｂ 吸込み弁
１４ａ、ｂ 放風弁
１５ａ、ｂ 吐出弁
２ 圧縮空気配管
３ａ〜ｄ 工場
３１ａ〜ｄ 自動バルブ
４ 分散制御システム 1a, b Compressed air compressor 11a, b Suction port 12a, b Orifice 13a, b Suction valve 14a, b Air discharge valve 15a, b Discharge valve 2 Compressed air piping 3a-d Factory 31a-d Automatic valve 4 Distributed control system

Claims (4)

複数の圧縮空気を送出する圧縮空気コンプレッサーから複数の工場に圧縮空気を供給する設備における、圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法であって、
前記圧縮空気コンプレッサーが有している送気能力、および圧縮空気の供給を停止する前記工場ごとの順番である停止優先順位を入力する、送気能力・停止優先順位の入力ステップと、
稼動中の圧縮空気コンプレッサーの送気量および供給中の工場の使用量を取り込む、送気量・使用量の取り込みステップと、
トラブル停止信号を受信し、トラブル停止に伴う供給不足分の圧縮空気量を計算する、供給不足分の圧縮空気量の計算ステップと、
前記停止優先順位と計算した供給不足分の圧縮空気量に基づき、供給停止する工場を特定し供給停止を行う、供給停止工場の特定と供給停止ステップと、
を有することを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。 A compressed air supply method at the time of trouble stop of a compressed air compressor in a facility for supplying compressed air to a plurality of factories from a compressed air compressor that sends out a plurality of compressed air,
An input step of an air supply capacity / stop priority order, which inputs an air supply capacity of the compressed air compressor, and a stop priority which is an order for each factory for stopping the supply of compressed air;
A step for capturing the amount of air flow and usage that captures the amount of air flow of the compressed air compressor that is in operation and the amount of factory usage that is being supplied,
Receiving a trouble stop signal, calculating a shortage of compressed air amount due to trouble stop, calculating a shortage of compressed air amount;
Based on the stop priority order and the amount of compressed air calculated for supply shortage, the supply stop factory is specified by specifying the factory to stop supply, and the supply stop step;
A method of supplying compressed air when trouble of a compressed air compressor stops. 請求項１に記載の圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法において、In the compressed air supply method at the time of trouble stop of the compressed air compressor according to claim 1,
前記供給停止工場の特定と供給停止ステップは、前記供給不足分の圧縮空気量の計算ステップにおいて計算された供給不足分の圧縮空気量に相当する圧縮空気使用量の工場への圧縮空気の供給を、前記送気能力・停止優先順位の入力ステップで決めた停止優先順位に基づき停止させるものであることを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。The supply stop factory is specified and the supply stop step is a step of supplying compressed air to the factory having a compressed air consumption corresponding to the shortage of compressed air calculated in the shortage of compressed air amount calculating step. Compressed air supply method at the time of trouble stop of the compressed air compressor, characterized in that it is stopped based on the stop priority determined in the input step of the air supply capacity / stop priority. 請求項１または２に記載の圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法において、In the compressed air supply method at the time of trouble stop of the compressed air compressor according to claim 1 or 2,
前記供給停止工場の特定と供給停止ステップは、前記供給不足分の圧縮空気量の計算ステップにおいて計算された供給不足分の圧縮空気量に相当する圧縮空気使用量の工場への圧縮空気の供給を、前記送気能力・停止優先順位の入力ステップで決めた停止優先順位に基づき停止させるものであり、The supply stop factory is specified and the supply stop step is a step of supplying compressed air to the factory having a compressed air consumption corresponding to the shortage of compressed air calculated in the shortage of compressed air amount calculating step. And stopping based on the stop priority determined in the input step of the air supply capacity / stop priority,
当該圧縮空気の供給を停止させる工場の圧縮空気使用量が、前記計算された供給不足分の圧縮空気量を上回っている場合には、当該工場への圧縮空気の供給を停止し、If the amount of compressed air used by the factory that stops the supply of compressed air exceeds the amount of compressed air calculated for the supply shortage, the supply of compressed air to the factory is stopped,
当該圧縮空気の供給を停止させる工場の圧縮空気使用量では、前記計算された供給不足分の圧縮空気量に不足する場合は、前記送気能力・停止優先順位の入力ステップで決めた停止優先順位に基づき、当該工場よりも優先順位の低い工場へと供給停止工場の範囲を拡げていくことを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。If the compressed air usage amount of the factory that stops the supply of compressed air is insufficient for the calculated compressed air amount corresponding to the shortage of supply, the stop priority order determined in the input step of the air supply capacity / stop priority order Based on the above, the compressed air supply method at the time of trouble stop of the compressed air compressor characterized in that the scope of the supply stop factory is expanded to a factory having a lower priority than the factory. 請求項１〜３のいずれかに記載の圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法において、
前記供給停止工場の特定と供給停止ステップの後に、
供給停止をおこなった工場以外のその他工場に対しても、トラブル停止直前の圧縮空気使用量以下の供給量に制限する、停止対象外工場への供給量制限ステップを有することを特徴とする圧縮空気コンプレッサーのトラブル停止時における圧縮空気供給方法。 In the compressed air supply method at the time of trouble stop of the compressed air compressor according to any one of claims 1 to 3 ,
After identification of the supply stop factory and the supply stop step,
Compressed air characterized by having a supply amount limiting step to a factory other than the stop target, which limits the supply amount to the amount of compressed air used or less immediately before the trouble stop for other factories other than the factory that stopped the supply. Compressed air supply method when compressor trouble stops.
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