KR950000614Y1 - Valve circuit for boiler - Google Patents

Valve circuit for boiler Download PDF

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Publication number
KR950000614Y1
KR950000614Y1 KR2019890013789U KR890013789U KR950000614Y1 KR 950000614 Y1 KR950000614 Y1 KR 950000614Y1 KR 2019890013789 U KR2019890013789 U KR 2019890013789U KR 890013789 U KR890013789 U KR 890013789U KR 950000614 Y1 KR950000614 Y1 KR 950000614Y1
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South Korea
Prior art keywords
hot water
heating
transistor
resistor
valve
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KR2019890013789U
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Korean (ko)
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KR910006108U (en
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김정호
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주식회사 금성사
이헌조
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0271—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/06—Heat exchangers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

내용 없음.No content.

Description

수격방지를 위한 밸브 구동 지연회로Valve driving delay circuit to prevent water hammer

제1도는 가스보일러의 기구 구성도.1 is a configuration diagram of a gas boiler.

제2도는 본 고안 솔레노이드 밸브 닫힘 지연시간이 있는 수격방지를 위한 밸브 구동 지연회로도.2 is a valve drive delay circuit diagram for preventing the water hammer having a solenoid valve closing delay time of the present invention.

제3도는 제2도의 동작에 의한 구동 타이밍도.3 is a drive timing diagram according to the operation of FIG.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 온수/난방 선택부 12 : 밸브 구동제어부11: hot water / heating selector 12: valve drive control

13 : 밸브 구동부 S/V1,S/V2: 솔레노이드 밸브13: Valve drive part S / V 1 , S / V 2 : Solenoid valve

RY1,RY2: 릴레이 OP1,OP2: 연산증폭기RY 1 , RY 2 : Relay OP 1 , OP 2 : Operational Amplifier

Q1-Q4: 트랜지스터 a1,b1,c1: 전환스위치의 단자Q 1 -Q 4 : Transistor a 1 , b 1 , c 1 : Switching terminal

본 고안은 가스보일러의 솔레노이드 밸브작동 지연회로에 관한 것으로, 특히 난방수와 온수절환시 물의 흐름이 갑자기 멈추었을 때 그 물의 흐름이 힘에 에너지로 변환되는 수격현상이나, 멈췄던 물을 갑자기 흐르게 할 때 관내 압력의 변화에 의해 수포가 발생되는 케비테이션현상을 방지하는데 적당하도록 한 수격방지를 위한 밸브 구동 지연회로에 관한 것이다.The present invention relates to a delay circuit for solenoid valve operation of a gas boiler, and especially when the water flow suddenly stops during switching between heating water and hot water, the water flow is converted into force into energy, or the water stops suddenly. The present invention relates to a valve drive delay circuit for preventing water hammer, which is suitable for preventing cavitation phenomenon in which blisters are generated by a change in pressure in a pipe.

제1도는 가스보일러의 기구 구성도로서, 이에 도시된 바와같이 난방을 위한 난방수가 배관(1)을 통하고 열교 환기 (3)를 거쳐 난방수 펌프(4)에 의해 버너부(6)에 도달하여 다시데워진 뒤 솔레노이드 밸브(S/V1)를 통해 상기 열교환기(3)에 공급되거나 다른 솔레노이드 밸브(S/V2)를 통해 방에 설치된 배관(2)에 공급되어 지고, 온수를 사용하기 위하여 급수되면 온수펌프(5)를 통한 뒤 상기 열교환기(3)에서 열을 흡수하고 버너부(6)에서 데워져서 다시 온수펌프(5)에 공급되거나 온수출구를 통해 공급되어 사용자가 온수를 사용하도록 구성되었다.FIG. 1 is a structural diagram of a gas boiler, in which heating water for heating reaches the burner part 6 by a heating water pump 4 through a pipe 1 and a heat exchanger 3 as shown in FIG. After being reheated and supplied to the heat exchanger (3) through the solenoid valve (S / V 1 ) or to the pipe (2) installed in the room through another solenoid valve (S / V 2 ) When water is supplied to the water through the hot water pump (5) and absorbs heat in the heat exchanger (3) and warmed in the burner unit (6) is supplied to the hot water pump (5) or supplied through the hot water outlet to the user to use hot water It is configured to.

여기서, 난방과온수를 함께사용할 때, 즉 솔레노이드 밸브(S/V1),(S/V2)가 모두 열렸을 때는 문제점이 없다. 그러나 난방만을 하기 위해 솔레노이드 밸브(S/V1)를 닫고 솔레노이드 밸브(S/V2)만 열었을 때나 온수만을 사용하기 위해 솔레노이드 밸브(S/V1)를 열고 솔레노이드 밸브(S/V2)는 닫을때는 닫힘이 먼저되거나 동시에 닫힘과 열림이 될 경우 수격현상이나 케비테이션현상이 발생될 수 있는 문제점이 있었다.Here, there is no problem when both heating and hot water are used together, that is, when both solenoid valves S / V 1 and S / V 2 are opened. However, when solenoid valve (S / V 1 ) is closed for heating only and solenoid valve (S / V 2 ) is opened or solenoid valve (S / V 1 ) is opened for hot water only, solenoid valve (S / V 2 ) When closing, there is a problem that water hammer or cavitation may occur if the closing is first or at the same time closing and opening.

본 고안은 이와같은 종래의 문제점을 해결하기 위하여, 솔레노이드 밸브(S/V1),(S/V2)의 닫힘과 열림의 동작을 시간적 차이를 두어 열림이 먼저 이루어 질수 있도록 닫힘지연 시간이 있는 수격방지를 위한 밸브구동 지연회로를 안출한 것으로, 이를 첨부된 도면을 참조해 상세히 설명하면 다음과 같다.The present invention has a closing delay time so that the opening of the solenoid valve (S / V 1 ), (S / V 2 ) of the closing and opening of the operation can be made first, in order to solve such a conventional problem. A valve driving delay circuit for preventing water hammer is devised, which will be described in detail with reference to the accompanying drawings.

제2도는 본 고안 솔레노이드 밸브 닫힘 지연시간이 있는 수격방지를 위한 밸브구동 지연회로로서, 이에 도시한 바와같이 전원단자(Vcc)를 저항(R1)를 통해 일측이 난방단자(a1), 타측이 온수단자(b1)로 구성된 전환수위치(SW1)의 가동단자(c1)에 접속하고, 상기전환스위치(SW1)의 온수단자(b1)를 저항(R2)을 통해 트렌지스터(Q1)의 베이스에 접속하며, 전원단자(Vcc)를 저항(R4)을 통해 트렌지스터(Q2)의 콜렉터에 접속함과 아울러 저항(R3)를 다시 통해 그 트렌지스터(Q2)의 베이스 및 상기 트렌지스터(Q1)의 콜렉터에 접속한 온수/난방 선택부(11)와, 이온수/난방 선택부(11)의 출력단자인 트렌지스터(Q2)의 콜렉터를 다이오드(D1) 및 저항(R7)을 통한후 시정수용 콘덴서(C1), 저항(R10) 및 연산증폭기(OP1)의 비반전입력단자에 접속하고, 상기 트렌지스터(Q2)의 콜렉터를 다이오드(D2)를 통해서는 시정수용 콘덴서(C2), 저항(R9) 및 연산증폭기(OP2)의 반전입력단자에 접속함과 아울러 그 접속점을 저항(R5) 및 다이오드(D3)를 통해 상기 전원단자(Vcc)에 접속하며, 상기 전원단자(Vcc)를 저항(R11)을 통해 저항(R12) 및 상기 연산 증폭기(OP1)의 반전입력단자에 접속하고, 상기 전원단자(Vcc)를 저항(R6)을 통해 저항(R8) 및 상기 연산증폭기(OP2)의 비반전입력단자에 접속한 밸브구동 제어부(12)와, 이 밸브 구동제어부(12)의 연산증폭기(OP1)의 출력단자를 트렌지스터(Q3)의 베이스에 접속하여 그 트렌지스터(Q3)의 콜렉터에 전원단자(Vcc)를 솔레노이드 밸브(S/V1)의 구동릴레이(RY1)를 통해 접속하고, 상기 연산증폭기(OP2)의 출력단자를 저항(R13)을 통한 전원단자(Vcc)와 공통으로 트랜지스터(Q4)의 베이스에 접속한 뒤 그 트랜지스터(Q4)의 콜렉터에 상기 전원단자(Vcc)를 솔레노이드 밸브(S/V2)를 통해 접속한 밸브 구동부(13)로 구성한 것으로, 도면의 설명중 미설명 D4,D5는 트렌지스터(Q3),(Q4)를 보호하는 다이오드이다.2 is a valve driving delay circuit for preventing water hammer with a solenoid valve closing delay time according to the present invention, and as shown therein, a power terminal Vcc is connected to a heating terminal a 1 and the other side through a resistor R 1 . connected to a movable terminal (c 1) of the switch can position consisting of the hot water port (b 1) (SW 1), and the transistors a hot terminal (b 1) of the change-over switch (SW 1) via a resistor (R 2) It is connected to the base of (Q 1 ), the power supply terminal (Vcc) is connected to the collector of transistor (Q 2 ) through the resistor (R 4 ), and through the resistor (R 3 ) again of the transistor (Q 2 ). The collector of the hot water / heating selector 11 connected to the base and the collector of the transistor Q 1 and the transistor Q 2 , which is an output terminal of the ionized water / heating selector 11, is connected to a diode D 1 and a resistor. (R 7) receiving time constant capacitor (C 1), a resistance (R 10) and an operational amplifier (OP 1) connected to the non-inverting input terminal, and in the tree through the oven and then Emitter via a diode (D 2) to the collector of the (Q 2) being a time constant receiving capacitor (C 2), also connected to the inverting input terminal of the resistance (R 9) and an operational amplifier (OP 2) as well as resistance to the connection point ( R 5 ) and a diode D 3 are connected to the power supply terminal Vcc, and the power supply terminal Vcc is inverted through the resistor R 11 through the resistor R 12 and the operational amplifier OP 1 . A valve drive control unit 12 connected to an input terminal and connected to the non-inverting input terminal of the resistor R 8 and the operational amplifier OP 2 through a resistor R 6 ; valve drive control unit 12 of the operational amplifier (OP 1), the output terminal of transistor (Q 3) and connected to the base that the transistor power supply terminal (Vcc) to the collector of (Q 3), the solenoid valves of the (S / V 1) a drive connection via a relay (RY 1) and of the operational amplifier power supply terminal (Vcc) and a common transistor (Q 4) output terminals of the (OP 2) via a resistor (R 13) Vespa Scan the rear to configure the power supply terminal (Vcc) to the collector of the transistor (Q 4) as a valve drive section 13 is connected via a solenoid valve (S / V 2), of the description of the drawings, reference D 4 connected to , D 5 is a diode to protect transistors (Q 3 ), (Q 4 ).

이와같이 구성한 솔레노이드 밸브 닫힘 지연시간이 있는 수격방지를 위한 밸브구동 지연회로의 동작 및 작용효과를 설명하면 다음과 같다.The operation and effect of the valve drive delay circuit for preventing water hammer with the solenoid valve closing delay time configured as described above are as follows.

온수만을 사용하고자하여 온수/난방 선택부(11)의 전환스위치(SW1)의 기동단자(c1)를 온수단자(b1)에 연결하며, 트렌지스터(Q1)가 턴온되어 트렌지스터(Q2)가 턴오프되고, 이에 따라 전원단자(Vcc)의 전원이 저항(R4)을 통한후 밸브구동 제어부(12)의 다이오드(D1) 및 저항(R7)을 통해서는 콘덴서(C1)에 충전되고, 다이오드(D2)를 통해서는 콘덴서(C2)에 충전되어, 그 콘덴서(C1),(C2)의 충전전압이 연산증폭기(OP1),(OP2)의 비반전입력단자 및 반전입력단자에 각기 공급된다.In order to use only hot water, the start terminal c 1 of the switching switch SW 1 of the hot water / heating selector 11 is connected to the hot water terminal b 1 , and the transistor Q 1 is turned on so that the transistor Q 2. ) Is turned off, and thus the power supply of the power supply terminal Vcc passes through the resistor R 4 , and then through the diode D 1 and the resistor R 7 of the valve driving controller 12, the capacitor C 1 . Is charged to the capacitor C 2 through the diode D 2 , and the charging voltages of the capacitors C 1 and C 2 are non-inverted by the operational amplifiers OP 1 and OP 2 . It is supplied to the input terminal and the inverting input terminal respectively.

이때 콘덴서(C1)의 용량이 콘덴서(C2)의 용량보다 작게설명되어 있으면, 콘덴서(C1)의 충전완료 시간이 빨라, 연산증폭기(OP2)의 출력변환보다 먼저 연산증폭기(OP1)의 출력이 고전위가 되어 밸브 구동부(13)의 트렌지스터(Q3)를 턴온시키고, 릴레이(RY1)를 구동시켜 솔레노이드 밸브(S/V1)가 열리게 되며, 이후 콘덴서(C2)가 충전이 완료되어 연산증폭기(OP2)의 출력이 저전위가 되므로 트렌지스터(Q4)가 턴오프되고, 릴레이(RY2)가 오프되어 솔레노이드 밸브(S/V2)가 닫히게 된다.At this time, if the capacitance of the capacitor (C 1) is described to be smaller than the capacitance of the capacitor (C 2), a capacitor (C 1) first operational amplifier than the output conversion faster the charge cut-off time, an operational amplifier (OP 2) of the (OP 1 ), The output of the high potential turns on the transistor Q 3 of the valve drive unit 13, and the relay RY 1 is driven to open the solenoid valve S / V 1 , and then the condenser C 2 is Since the charging is completed and the output of the operational amplifier OP 2 becomes low potential, the transistor Q 4 is turned off and the relay RY 2 is turned off to close the solenoid valve S / V 2 .

또한 난방만을 사용하기 위해 온수/난방 선택부(11)의 절환스위치(SW1)를 난방단자 (a1)에 연결하면, 트렌지스터(Q1)과 턴오프되고 트렌지스터(Q2)가 턴오프되므로 밸브 구동제어부(12)의 다이오드(D1),(D2)가 오프상태로되어 콘덴서(C1),(C2)가 방전을 하는데, 콘덴서(C2)와 저항(R9)에 의한 방전시정수 값이 콘덴서(C1)와 저항(R10)에 의한 방전시정수 값보다 작게 설정되어 있으면, 이때 콘덴서(C2)가 콘덴서(C1)보다 방전속도가 빨라 연산증폭기(OP2)의 출력변화가 연산증폭기(OP1)의 출력변환보다 먼저 변화하여 즉, 저전위에서 고전위로 변하여 트렌지스터(Q4)가 턴온되고, 이에따라 렐레이(RY2)가 구동되므로 솔레노이드 밸브(S/V2)가 열리게된다.In addition, when the switching switch SW 1 of the hot water / heating selector 11 is connected to the heating terminal a 1 to use only heating, it is turned off with the transistor Q 1 and the transistor Q 2 is turned off. by a diode (D 1), (D 2 ) is in an oFF-state capacitor (C 1),, in that the discharge (C 2) capacitors (C 2) and a resistor (R 9) of the valve drive controller 12 If the discharge time constant value is set smaller than the discharge time constant value by the capacitor (C 1 ) and the resistor (R 10 ), then the capacitor (C 2 ) has a faster discharge rate than the capacitor (C 1 ), so that the operational amplifier (OP 2) Output change of the operational amplifier (OP 1 ) before the output conversion of the operational amplifier (OP 1 ), that is, from the low potential to the high potential, the transistor (Q 4 ) is turned on, accordingly the relay (RY 2 ) is driven, so that the solenoid valve (S / V) 2 ) is opened.

또한 상기 콘덴서(C1)와 저항(R10)에 의한 시정수 값이 크므로 콘덴서(C1)의 방전속도가 느려 연산증폭기(OP1)의 출력변화가 상기 연산증폭기(OP2)의 출력변화보다 늦게 변하게 된다. 즉, 이때 연산증폭기(OP1)의 출력이 고전위에서 저전위로 변하면 트렌지스터(Q3)가 턴오프되어 릴레이(RY1)의 구동이 중지되고, 이에따라 솔레노이드 밸브(S/V1)가 닫히게된다.In addition, since the time constant value between the capacitor C 1 and the resistor R 10 is large, the discharge speed of the capacitor C 1 is slowed, so that the output change of the operational amplifier OP 1 is changed to the output of the operational amplifier OP 2 . It will change later than change. That is, at this time, the output of the operational amplifier (OP 1) is a turn-off transistor (Q 3) turns over the low potential on the classic driving of the relay (RY 1) is stopped, yiettara is closed the solenoid valve (S / V 1).

따라서 온수만을 사용하거나 난방만을 사용하기 위해 솔레노이드 밸브(S/V1),(S/V2)를 작동할 때 제3도에 도시된 타이밍도와 같이 열림이 먼저되고 닫힘이 늦게되어 수격현상이나 케비테이션현성이 방지된다.Therefore, when operating solenoid valves (S / V 1 ) and (S / V 2 ) to use only hot water or heating only, the opening is first and the closing is delayed as shown in the timing diagram shown in FIG. Oversight is prevented.

이상에서 상세히 설명한 바와같이 본 고안은 수격현상이나 케비테이선현상을 방지하게되어 부품의 열화를 막고 제품의 수명을 연장시키는 효과가 있게된다.As described in detail above, the present invention prevents water hammer or cavities, thereby preventing deterioration of parts and extending the life of the product.

Claims (4)

전원스위치(SW1)의 온수/난방 선택상태에 따라 그에 대응하는 온수/난방 선택신호를 출력하는 온수/난방 선택부(11)와, 상기 온수/난방 선택부(11)의 온수/난방 선택신호에 따라 소정의 시간차를 갖고 온수/난방 구동 제어신호를 출력하는 밸브구동 제어부(12)와, 상기 밸브 구동제어부(12)의 온수/난방 구동제어 신호에 따라 솔레노이드 밸브(S/V1,S/V2)의 구동을 제어하는 밸브구동부(13)로 구성하여 된 것을 특징으로 하는 수격방지를 위한 밸브 구동 지연회로.The hot water / heating selector 11 for outputting the hot water / heating selection signal corresponding to the hot water / heating selection state of the power switch SW 1 , and the hot water / heating selection signal of the hot water / heating selector 11. Valve driving control unit 12 having a predetermined time difference and outputting a hot water / heating driving control signal, and a solenoid valve S / V 1 , S / according to the hot water / heating driving control signal of the valve driving control unit 12. V 2 ) a valve drive delay circuit for preventing water hammer, characterized in that consisting of a valve drive portion 13 for controlling the drive. 제1항에 있어서, 상기 온수/난방 선택부(11)은 전원단자(Vcc)를 저항(R1)을 통해 전환스위치(SW1)의 가동단자(C1)에 접속하여, 그의 온수단자(b1)를 저항(R2)을 통해 트렌지스터(Q1)의 베이스에 접속하고, 상기 전원단자(Vcc)를 저항(R4)을 통해 트렌지스터(Q2)의 콜렉터에 접속함과 아울러 저항(R3)을 다시 통해 그 트랜지스터(Q2)의 베이스 및 상기 트렌지스터(Q1)의 콜렉터에 접속하여 상기 트랜지스터(Q2)의 콜렉터축에서 온수/난방 선택신호가 출력되게 구성한 것을 특징으로 하는 수격방지를 위한 밸브 구동 지연회로.The hot water / heating selector 11 connects the power supply terminal Vcc to the movable terminal C 1 of the changeover switch SW 1 through the resistor R 1 , and thus the hot water / heating selector 11. b 1 ) is connected to the base of the transistor Q 1 through the resistor R 2 , and the power supply terminal Vcc is connected to the collector of the transistor Q 2 through the resistor R 4 and the resistor ( through R 3) re-connected to the collector of the base and the transistor (Q 1) of the transistor (Q 2) from the collector axis of said transistor (Q 2) water hammer, characterized in that configured so that hot water / heating selection signal output Valve drive delay circuit for protection. 제1항에 있어서, 상기 밸브 구동제어부(12)는 상기 온수/난방 선택부(11)의 출력단자를 다이오드(D1) 및 저항(R7)을 통해서는 콘덴서(C1), 저항(R10) 및 연산증폭기(OP1)의 비반전입력단자에 접속하고, 상기 온수/난방 선택부(11)의 출력단자를 다이오드(D2)를 통해서는 콘덴서(C2), 저항(R9) 및 연산증폭기(OP2)의 반전입력단자에 접속하며, 상기 전원단자(Vcc)를 분압용 저항(R11,R12),(R6,R8)을 각기통해 상기 연산증폭기(OP1)의 반전입력단자 및 연산증폭기(OP2)의 비반전입력단자에 접속하여 구성된 것을 특징으로 하는 수격방지를 위한 밸브 구동지연 회로.The method of claim 1, wherein the valve drive control unit 12 is the output terminal of the hot water / heating selection unit 11 via a diode (D 1 ) and the resistor (R 7 ), the capacitor (C 1 ), the resistance (R) 10 ) and the non-inverting input terminal of the operational amplifier OP 1 , and the output terminal of the hot water / heating selector 11 through the diode D 2 through the capacitor C 2 and the resistor R 9 . And an inverting input terminal of the operational amplifier OP 2 , and the power supply terminal Vcc is connected to the operational amplifier OP 1 through a voltage divider R 11 , R 12 , and R 6 , R 8 , respectively. A valve drive delay circuit for preventing water hammer, characterized in that it is connected to the non-inverting input terminal of the inverting input terminal and the operational amplifier (OP 2 ) of. 제1항에 있어서, 상기 밸브 구동부(13)는 상기 구동 제어부(12)의 온수구동제어신호 출력단자를 트렌지스터(Q3)의 베이스에 접속하여, 그 트렌지스터(Q3)의 콜렉터에 전원단자(Vcc)를 솔레노이드 밸브(S/V1)의 구동 릴레이(RY1)을 통해 접속하고, 상기 밸브구동 제어부(12)의 난방구동제어신호 출력단자를 저항(R13)을 통한 전원단자(Vcc)와 함께 트렌지스터(Q4)의 베이스에 접속하고, 그 트렌지스터(Q4)의 콜렉터에 상기 전원단자(Vcc)를 솔레노이드 밸브(S/V2)의 구동릴레이(RY2)를 통해 접속하여 구성된 것을 특징으로 하는 수격방지를 위한 밸브 구동 지연회로.The method of claim 1, wherein the power supply terminal to the collector of the valve drive section 13 is connected to the hot water control signal output terminal of the drive control unit 12 to the base of a transistor (Q 3), the transistor (Q 3) ( Vcc) is connected via the drive relay RY 1 of the solenoid valve S / V 1 , and the heating drive control signal output terminal of the valve drive control unit 12 is connected to the power supply terminal Vcc through the resistor R 13 . and with connection to the base of the transistor (Q 4), and connected through a drive relay (RY 2) of the transistor (Q 4) the power supply terminal (Vcc) to the solenoid valve (S / V 2) to the collector of the configured Valve driving delay circuit for preventing water hammer.
KR2019890013789U 1989-09-21 1989-09-21 Valve circuit for boiler KR950000614Y1 (en)

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KR2019890013789U KR950000614Y1 (en) 1989-09-21 1989-09-21 Valve circuit for boiler

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KR2019890013789U KR950000614Y1 (en) 1989-09-21 1989-09-21 Valve circuit for boiler

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KR910006108U KR910006108U (en) 1991-04-24
KR950000614Y1 true KR950000614Y1 (en) 1995-02-04

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