JPH07310670A - Pressure controller for air compressor - Google Patents
Pressure controller for air compressorInfo
- Publication number
- JPH07310670A JPH07310670A JP10366994A JP10366994A JPH07310670A JP H07310670 A JPH07310670 A JP H07310670A JP 10366994 A JP10366994 A JP 10366994A JP 10366994 A JP10366994 A JP 10366994A JP H07310670 A JPH07310670 A JP H07310670A
- Authority
- JP
- Japan
- Prior art keywords
- air
- compressed air
- pressure
- predicting
- equipment
- 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
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉄鋼製造プラント，紙
パルプ製造プラント，食品・薬品プラントなどの各種プ
ラントで使用される空気圧縮設備の圧力制御装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure control device for an air compression facility used in various plants such as a steel manufacturing plant, a pulp and paper manufacturing plant, and a food / chemical plant.
【０００２】[0002]
【従来の技術】従来の空気圧縮設備の圧力制御装置を図
３を参照して説明する。バッファタンクまたはレシーバ
タンクと呼ばれるタンク１の圧力を常に一定に保ち、各
圧縮空気使用機器３に安定した圧縮空気を供給するため
に圧力制御部９が設けられている。圧縮空気の供給は、
各空気圧縮機２を運転／停止させることで行なわれてお
り、圧力計７はバッファタンク１もしくは空気使用側の
ヘッダ配管５に取り付けられている。圧縮空気は、供給
側ヘッダ配管４，使用側ヘッダ配管５，配管６，バッフ
ァタンク１に蓄えられている。2. Description of the Related Art A conventional pressure control device for air compression equipment will be described with reference to FIG. A pressure control unit 9 is provided in order to keep the pressure of the tank 1 called a buffer tank or a receiver tank constant at all times and to supply stable compressed air to each compressed air using device 3. The compressed air supply is
The operation is performed by operating / stopping each air compressor 2, and the pressure gauge 7 is attached to the buffer tank 1 or the header pipe 5 on the air use side. The compressed air is stored in the supply-side header pipe 4, the use-side header pipe 5, the pipe 6, and the buffer tank 1.
【０００３】従来の圧力制御方法は、通常圧力計７から
の圧力値Ｐ1 と圧力設定値Ｐ0 を圧力制御部９で比較
し、圧力値Ｐ1 が低い場合は、各空気圧縮機２へ運転指
令Ｓ1を出力する。逆に、圧力値Ｐ1 が高い場合は各空
気圧縮機２へ停止指令Ｓ2 を出力する。In the conventional pressure control method, the pressure control unit 9 compares the pressure value P1 from the normal pressure gauge 7 with the pressure setting value P0. If the pressure value P1 is low, the operation command S1 is sent to each air compressor 2. Is output. On the contrary, when the pressure value P1 is high, the stop command S2 is output to each air compressor 2.
【０００４】ところで、圧力計７が示す圧力値Ｐ1 は、
バッファタンク１等の容量が大きいことから圧縮空気の
供給や使用に対して遅れて変化する。そのため、圧力計
７の圧力値Ｐ1 のみを基に圧力制御を行うと、バッファ
タンク１の圧力変動が大きく、各空気圧縮機２の運転に
も無駄が生ずることになる。By the way, the pressure value P1 indicated by the pressure gauge 7 is
Since the capacity of the buffer tank 1 and the like is large, it changes after the supply and use of compressed air. Therefore, if the pressure control is performed only on the basis of the pressure value P1 of the pressure gauge 7, the pressure fluctuation of the buffer tank 1 is large, and the operation of each air compressor 2 is wasteful.
【０００５】[0005]
【発明が解決しようとする課題】上述したように、従来
の空気圧縮設備の圧力制御方法では、バッファタンク等
の容量が大きいと圧力の変化が遅れるため、圧力計で得
られる圧力値のみの制御では安定した圧縮空気を供給す
ることが困難である。As described above, in the conventional pressure control method for the air compression equipment, the pressure change is delayed when the capacity of the buffer tank or the like is large, so that only the pressure value obtained by the pressure gauge is controlled. However, it is difficult to supply stable compressed air.
【０００６】本発明は、上記事情に鑑みてなされたもの
で、その目的は各空気使用機器の使用空気量を設定して
おき、各空気使用機器運転時に圧縮空気の使用による圧
力変動を予測することで、安定した圧縮空気を供給し、
また、各空気圧縮機の運転時に圧縮空気の供給による圧
力変動を予測することで、各空気圧縮機の運転効率を高
めることのできる空気圧縮設備の圧力制御装置を提供す
ることにある。The present invention has been made in view of the above circumstances, and an object thereof is to set the amount of air used by each air-using device and predict the pressure fluctuation due to the use of compressed air during operation of each air-using device. By this, stable compressed air is supplied,
Another object of the present invention is to provide a pressure control device for an air compression facility that can improve the operating efficiency of each air compressor by predicting the pressure fluctuation due to the supply of compressed air during the operation of each air compressor.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１は、各種プラントの圧縮空気使用
機器が使用する圧縮空気を制御する空気圧縮設備の圧力
制御装置において、前記各圧縮空気使用設備の運転信号
を取り込み，予め設定してある前記各圧縮空気使用設備
の使用空気量を予測する空気使用量予測演算部と、空気
圧縮機の運転を調整し，安定した圧縮空気を供給する空
気供給量予測演算部と、前記両予測演算部の出力から圧
力変動を予測する圧力変動予測演算部とからなる圧力変
動予測部を備えたことを特徴とするものである。In order to achieve the above object, the first aspect of the present invention provides a pressure control device for an air compression facility for controlling compressed air used by equipment using compressed air of various plants, Stable compressed air that adjusts the operation of the air usage amount calculation unit that predicts the amount of air used in each of the compressed air usage equipment that has been set in advance by taking in the operation signal of each compressed air usage equipment Is provided, and a pressure fluctuation predicting unit including a pressure fluctuation predicting calculating unit that predicts a pressure fluctuation from the outputs of both the predicting calculating units is provided.
【０００８】[0008]
【作用】本発明の空気圧縮設備の圧力制御装置による
と、通常の圧力制御に予測分を加味しているので、安定
した圧縮空気を供給するとともに、空気圧縮機の効率の
良い運転ができる。According to the pressure control device of the air compression equipment of the present invention, the predicted pressure is added to the normal pressure control, so that stable compressed air can be supplied and the air compressor can be operated efficiently.
【０００９】[0009]
【実施例】以下、本発明の実施例を図を参照して説明す
る。図１は本発明の一実施例の構成図であり、本実施例
が既に説明した図３の空気圧縮設備の圧力制御装置と相
違する点は、圧力変動予測部１０を追加設定した点であ
る。この圧力変動予測部１０は、各空気圧縮機の空気供
給量設定部１１と、空気供給量予測演算部１２と、各空
気使用機器の空気使用量設定部１３と、空気使用量予測
演算部１４と、圧力変動予測演算部１５とから構成され
ている。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a configuration diagram of an embodiment of the present invention, and the difference of the present embodiment from the pressure control device of the air compression equipment of FIG. 3 already described is that the pressure fluctuation prediction unit 10 is additionally set. . The pressure fluctuation prediction unit 10 includes an air supply amount setting unit 11 for each air compressor, an air supply amount prediction calculation unit 12, an air usage amount setting unit 13 for each air-using device, and an air usage amount prediction calculation unit 14. And a pressure fluctuation prediction calculation unit 15.
【００１０】本実施例では、各空気圧縮機２で製造され
た圧縮空気は、供給側ヘッダ配管４および配管６を介し
て接続されたバッファタンク１に蓄えられる一方、使用
側ヘッダ配管５および配管６を介して接続された各空気
使用機器３が必要に応じて使用するため減少もする。こ
のためバッファタンク１に取り付けられた圧力計７によ
り、バッファタンク圧力値Ｐ1 を計測して圧力制御部９
へ入力している。In this embodiment, the compressed air produced by each air compressor 2 is stored in the buffer tank 1 connected via the header pipes 4 and 6 on the supply side, while the header pipes 5 and 5 on the use side are stored. Since each air using device 3 connected via 6 uses it as needed, the number is also reduced. Therefore, the pressure gauge 7 attached to the buffer tank 1 measures the buffer tank pressure value P1 and the pressure control unit 9
You are typing into.
【００１１】圧力変動予測部１０は、空気供給量予測演
算部１２において各空気圧縮機の運転信号Ｓ3 と各空気
圧縮機の空気供給量設定部１１から総圧縮空気供給量ｆ
1 を演算し、空気使用量予測演算部１４において各空気
使用機器の運転信号Ｓ4 と各空気使用機器の空気使用量
設定部１３から総圧縮空気使用量ｆ2 を演算し、圧力変
動予測演算部１５において総圧縮空気供給量ｆ1 と総圧
縮空気使用量ｆ2 から圧力変動予測信号Ｓ5 を算出す
る。In the pressure fluctuation predicting section 10, the operation signal S3 of each air compressor in the air supply quantity predicting operation section 12 and the total compressed air supply quantity f from the air supply quantity setting section 11 of each air compressor.
1 is calculated, the operation signal S4 of each air-using device and the total compressed air use amount f2 from the air-usage setting unit 13 of each air-using device are calculated in the air-use amount predicting calculation unit 14, and the pressure fluctuation prediction calculation unit 15 is calculated. At, the pressure fluctuation prediction signal S5 is calculated from the total compressed air supply amount f1 and the total compressed air usage amount f2.
【００１２】圧力制御部９は、圧力計７からの圧力値Ｐ
1 と圧力設定値Ｐ0 を比較する際に、圧力変動予測部１
０からの圧力変動予測信号Ｓ5 を加味して、圧力値Ｐ1
が低い場合は、各空気圧縮機２へ運転指令Ｓ1 を出力す
る。逆に、圧力値Ｐ1 が高い場合は各空気圧縮機２へ停
止指令Ｓ2 を出力する。圧力制御部９に圧力変動予測信
号Ｓ5 を加味する事で、空気圧縮機２の無駄な運転を抑
える事ができるとともに、圧縮空気の安定供給を図る事
ができる。The pressure control unit 9 controls the pressure value P from the pressure gauge 7.
When comparing 1 and the pressure setting value P0, the pressure fluctuation prediction unit 1
Considering the pressure fluctuation prediction signal S5 from 0, the pressure value P1
When is low, the operation command S1 is output to each air compressor 2. On the contrary, when the pressure value P1 is high, the stop command S2 is output to each air compressor 2. By adding the pressure fluctuation prediction signal S5 to the pressure control unit 9, it is possible to suppress wasteful operation of the air compressor 2 and to stably supply compressed air.
【００１３】[0013]
【発明の効果】以上説明したように、本発明によれば、
圧縮空気の安定供給が図れるので、空気圧縮機の無駄な
運転を抑えることができ、プラントの省エネルギー化に
一段のの効果がある。As described above, according to the present invention,
Since stable supply of compressed air can be achieved, useless operation of the air compressor can be suppressed, and there is a further effect in saving energy in the plant.
【図１】本発明の一実施例の構成図。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】図１の圧力変動予測制御部の処理の流れを示す
図。FIG. 2 is a diagram showing a flow of processing of a pressure fluctuation prediction control unit in FIG.
【図３】一般的な空気圧縮設備のプラント構成図。FIG. 3 is a plant configuration diagram of a general air compression facility.
１…バッファタンク、２…各空気圧縮機、３…各圧縮空
気使用機器、４…供給側ヘッダ配管、５…使用側ヘッダ
配管、６…配管、７…圧力計、８…圧力設定部、９…圧
力制御部、１０…圧力変動予測部、１１…各空気圧縮機
の空気供給量設定部、１２…空気供給量予測演算部、１
３…各空気使用機器の空気使用量設定部、１４…空気使
用量予測演算部、１５…圧力変動予測演算部、Ｓ1 ，Ｓ
2 …各空気圧縮機運転／停止指令、Ｐ1 …バッファタン
ク圧力値、Ｓ3 …各空気圧縮機の運転信号、Ｓ4 …各空
気使用機器の運転信号、Ｓ5 …圧力変動予測信号、ｆ1
…総圧縮空気供給量、ｆ2 …総圧縮空気使用量。DESCRIPTION OF SYMBOLS 1 ... Buffer tank, 2 ... Each air compressor, 3 ... Each compressed air use apparatus, 4 ... Supply side header piping, 5 ... Use side header piping, 6 ... Piping, 7 ... Pressure gauge, 8 ... Pressure setting part, 9 ... Pressure control unit, 10 ... Pressure fluctuation prediction unit, 11 ... Air supply amount setting unit of each air compressor, 12 ... Air supply amount prediction calculation unit, 1
3 ... Air usage amount setting unit of each air-using device, 14 ... Air usage amount prediction calculation unit, 15 ... Pressure fluctuation prediction calculation unit, S1, S
2 ... each air compressor operation / stop command, P1 ... buffer tank pressure value, S3 ... each air compressor operation signal, S4 ... each air using equipment operation signal, S5 ... pressure fluctuation prediction signal, f1
… Total compressed air supply, f2… Total compressed air usage.
Claims (1)
する圧縮空気を制御する空気圧縮設備の圧力制御装置に
おいて、前記各圧縮空気使用設備の運転信号を取り込
み，予め設定してある前記各圧縮空気使用設備の使用空
気量を予測する空気使用量予測演算部と、空気圧縮機の
運転を調整し，安定した圧縮空気を供給する空気供給量
予測演算部と、前記両予測演算部の出力から圧力変動を
予測する圧力変動予測演算部とからなる圧力変動予測部
を備えたことを特徴とする空気圧縮設備の圧力制御装
置。1. A pressure control device for an air compression equipment for controlling compressed air used by equipment using compressed air in various plants, wherein each compressed air which is set in advance by taking in an operation signal of each equipment using compressed air. An air usage amount calculation unit that predicts the amount of air used in the facility, an air supply amount calculation unit that adjusts the operation of the air compressor to supply stable compressed air, and a pressure from the outputs of both prediction calculation units. A pressure control device for an air compression facility, comprising a pressure fluctuation prediction unit including a pressure fluctuation prediction calculation unit that predicts fluctuations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366994A JPH07310670A (en) | 1994-05-18 | 1994-05-18 | Pressure controller for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10366994A JPH07310670A (en) | 1994-05-18 | 1994-05-18 | Pressure controller for air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07310670A true JPH07310670A (en) | 1995-11-28 |
Family
ID=14360205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10366994A Pending JPH07310670A (en) | 1994-05-18 | 1994-05-18 | Pressure controller for air compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07310670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023179380A1 (en) * | 2022-03-23 | 2023-09-28 | 乔治洛德方法研究和开发液化空气有限公司 | Method and apparatus for controlling gas supply of gas supply system |
-
1994
- 1994-05-18 JP JP10366994A patent/JPH07310670A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023179380A1 (en) * | 2022-03-23 | 2023-09-28 | 乔治洛德方法研究和开发液化空气有限公司 | Method and apparatus for controlling gas supply of gas supply system |
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