JPH0245342U - - Google Patents
Info
- Publication number
- JPH0245342U JPH0245342U JP11849788U JP11849788U JPH0245342U JP H0245342 U JPH0245342 U JP H0245342U JP 11849788 U JP11849788 U JP 11849788U JP 11849788 U JP11849788 U JP 11849788U JP H0245342 U JPH0245342 U JP H0245342U
- Authority
- JP
- Japan
- Prior art keywords
- control
- control current
- temperature change
- proportional valve
- value
- 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
- Magnetically Actuated Valves (AREA)
- Control Of Combustion (AREA)
Description
第１図は本考案の一実施例の全体構成図である
。第２図は本考案の一実施例の制御特性図であり
、第３図は従来例の制御特性図である。第４図は
熱電対の起電力の特性図である。第５図、第６図
は制御回路のブロツク図である。
１……比例弁、２……制御回路、４……熱電対
、５……ガス燃焼器、２２……出力変化回路、２
５……演算比較回路。
FIG. 1 is an overall configuration diagram of an embodiment of the present invention. FIG. 2 is a control characteristic diagram of an embodiment of the present invention, and FIG. 3 is a control characteristic diagram of a conventional example. FIG. 4 is a characteristic diagram of the electromotive force of the thermocouple. 5 and 6 are block diagrams of the control circuit. DESCRIPTION OF SYMBOLS 1... Proportional valve, 2... Control circuit, 4... Thermocouple, 5... Gas combustor, 22... Output change circuit, 2
5... Arithmetic comparison circuit.
Claims (1)
流を比例弁に供給する制御回路と、開弁度が供給
された制御電流に対応するように構成された比例
弁とを備え、前記制御回路が制御電流を出力する
間に、制御電流を所定の周期で火力制御に影響し
ない程度に変化させる出力変化回路を設けたこと
を特徴とするガス燃焼器の比例制御装置。 (2) 要求された火力に対応する所定値の制御電
流を比例弁に供給する制御回路と、開弁度が供給
された制御電流に対応するように構成された比例
弁と、ガス燃焼器の立ち消え検出用の熱電対とを
備え、前記制御回路が、被制御値が目標値に安定
した後に、所定の測定期間ごとに熱電対によつて
検出される温度の平泣変化値または平均温度変化
率を演算し、安定化後の温度変化が所定値以上に
なるときにその温度変化を解消する方向に制御電
流を変化させる演算比較回路を設けたことを特徴
とするガス燃焼器の比例制御装置。[Claims for Utility Model Registration] (1) A control circuit configured to supply a proportional valve with a predetermined value of control current corresponding to the required thermal power, and a valve opening degree corresponding to the supplied control current. A proportional valve for a gas combustor, characterized in that, while the control circuit outputs the control current, an output change circuit is provided for changing the control current at a predetermined period to an extent that does not affect thermal power control. Control device. (2) A control circuit that supplies a predetermined value of control current corresponding to the requested thermal power to the proportional valve, a proportional valve whose opening degree corresponds to the supplied control current, and a gas combustor. and a thermocouple for detecting extinction, and the control circuit detects a normal temperature change value or an average temperature change detected by the thermocouple every predetermined measurement period after the controlled value has stabilized at the target value. A proportional control device for a gas combustor, characterized in that it is provided with an arithmetic comparison circuit that calculates the ratio and changes the control current in a direction to eliminate the temperature change when the temperature change after stabilization exceeds a predetermined value. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11849788U JPH0245342U (en) | 1988-09-08 | 1988-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11849788U JPH0245342U (en) | 1988-09-08 | 1988-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0245342U true JPH0245342U (en) | 1990-03-28 |
Family
ID=31362910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11849788U Pending JPH0245342U (en) | 1988-09-08 | 1988-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245342U (en) |
-
1988
- 1988-09-08 JP JP11849788U patent/JPH0245342U/ja active Pending
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