JPS62131209U

JPS62131209U -

Info

Publication number: JPS62131209U
Application number: JP1440686U
Authority: JP
Priority date: 1986-02-03
Filing date: 1986-02-03
Publication date: 1987-08-19

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図、第３図、第４図はそれぞれ本考案の実施例に
おける制御回路ブロツク図、第５図は同じく温度
―時間特性線図である。１……ボイラー、２……節炭器、１３……給水
ポンプ、２０……圧力検出器、２１……温度検出
器、３１……比較回路、３２……タイマー回路、
３３―１……タイマー式ポンプ運転回路、３３―
２……温度判別式ポンプ運転回路、３３―３……
タイマー温度判別式ポンプ運転回路、３３……ポ
ンプ運転回路。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
3, 4 are control circuit block diagrams in an embodiment of the present invention, and FIG. 5 is a temperature-time characteristic diagram. 1... Boiler, 2... Energy saver, 13... Water pump, 20... Pressure detector, 21... Temperature detector, 31... Comparison circuit, 32... Timer circuit,
33-1...Timer type pump operation circuit, 33-
2... Temperature discrimination type pump operation circuit, 33-3...
Timer temperature discrimination type pump operation circuit, 33... Pump operation circuit.

Claims

【実用新案登録請求の範囲】１ボイラー１に接続した節炭器２の水流通経路
中の最も過熱され易い個所の温度を検出する温度
検出器２０と、前記ボイラー１の管内圧力を検出
する圧力検出器２１と、前記圧力検出器２１から
の圧力信号を温度ｔ_１に換算し、この換算温度ｔ
_１と前記温度検出器２０からの検出温度ｔ_２とを
比較して、温度差△ｔ＝ｔ_１―ｔ_２が設定温度差
以下であれば出力を発する比較回路３１と、前記
比較回路３１からの出力により給水ポンプ１３を
駆動させるポンプ運転回路３３とを設けたことを
特徴とする節炭器の保護装置。２前記ポンプ運転回路は、前記比較回路からの
出力により給水ポンプを駆動させ、該出力受信後
、温度検出器からの温度が設定温度Ｔ_１以下にな
れば前記給水ポンプを停止させる機能を含む回路
である実用新案登録請求の範囲第１項記載の節炭
器の保護装置。３前記ポンプ運転回路は前記比較回路からの出
力により給水ポンプを駆動させ、該出力受信後、
設定時間Ｈが経過すれば前記給水ポンプを停止さ
せる機能を含む回路である実用新案登録請求の範
囲第１項又は第２項記載の節炭器の保護装置。[Claims for Utility Model Registration] 1. A temperature detector 20 that detects the temperature at a point in the water flow path of the economizer 2 connected to the boiler 1 that is most likely to be overheated, and a pressure sensor that detects the pressure inside the pipes of the boiler 1. The pressure signal from the pressure detector 21 and the pressure detector 21 is converted into a temperature _t1 , and this converted temperature t
₁ and the detected temperature _t2 from the temperature detector 20, and outputs an output if the temperature difference Δt= _t1 - _t2 is equal to or less than the set temperature difference; A protection device for an energy saver, characterized in that a pump driving circuit 33 is provided for driving a water supply pump 13 by the output of the pump. 2. The pump operation circuit is a circuit including a function of driving the water supply pump by the output from the comparison circuit, and stopping the water supply pump if the temperature from the temperature detector becomes equal to or lower than the set temperature _T1 after receiving the output. A protection device for an economizer according to claim 1 of the utility model registration claim. 3. The pump operation circuit drives the water supply pump by the output from the comparison circuit, and after receiving the output,
The protection device for the energy saver according to claim 1 or 2, which is a circuit including a function of stopping the water supply pump when a set time H has elapsed.