KR100783370B1 - Differential pressure control valve - Google Patents

Differential pressure control valve Download PDF

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KR100783370B1
KR100783370B1 KR1020060037475A KR20060037475A KR100783370B1 KR 100783370 B1 KR100783370 B1 KR 100783370B1 KR 1020060037475 A KR1020060037475 A KR 1020060037475A KR 20060037475 A KR20060037475 A KR 20060037475A KR 100783370 B1 KR100783370 B1 KR 100783370B1
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South Korea
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hot water
flow
differential pressure
pipe
pressure
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KR1020060037475A
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Korean (ko)
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KR20070105420A (en
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장사윤
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주식회사 한 에너지 시스템
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Priority to KR1020060037475A priority Critical patent/KR100783370B1/en
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    • 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
    • F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
    • F16K19/003—Specially adapted for boilers
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/16—Arrangements for water drainage 

Abstract

본 발명은 차압유량조절밸브에 관한 것으로, 더욱 상세하게는 온수회수배관상에 설치되면서 각 분기배관로부터 회수되는 온수에 의해 작용되는 온수회수압력 P1과, 온수공급배관과 연결된 차압감지배관을 통해 감지되는 온수공급압력 P2와의 압력차에 따라 탄성적으로 상하강되는 유량조절카트리지를 이용하여 온수공급설정압력 P3을 일정하게 유지시킴으로써 각 분기배관에 공급되는 온수의 유량을 일정하게 유지시키도록 구성되는 차압유량조절밸브를 제공함에 그 목적이 있다.The present invention relates to a differential pressure flow control valve, and more particularly, it is installed on a hot water recovery pipe and detected through a hot water recovery pressure P1 acted by hot water recovered from each branch pipe, and a differential pressure sensing pipe connected to the hot water supply pipe. Differential pressure is configured to maintain a constant flow rate of hot water supplied to each branch pipe by maintaining a constant hot water supply set pressure P3 by using a flow control cartridge that is elastically up and down according to the pressure difference with the hot water supply pressure P2 The purpose is to provide a flow control valve.

그리고, 상기한 목적을 달성하기 위하여 본 발명은 보일러(60)의 난방온수배관에서 각 분기배관(65,66,67)에 흐르는 유량을 일정하게 유지하도록 조절하는 차압유량조절밸브에 있어서, 온수회수배관(62)과 연결된 제1유로(11)와, 온수공급배관(61)의 차압감지배관(63)과 연결된 제2유로(12)를 통해 온수가 유입되면서 온수회수압력 P1과 온수공급압력 P2의 차압이 유량조절카트리지(30)에 작용되면 상기 유량조절카트리지(30)가 제1,2스프링(15,16)에 의해 탄성적으로 상하이동하고, 밸브시트(14)에 의해 그 입출수부가 가변적으로 분할되는 오리피스유로홈(31)을 통해 상기 제1유로(11)의 온수가 제3유로(13)로 배출하면서 온수공급설정압력 P3가 조정되어 상기 온수공급배관(61)에 공급되는 유량이 조절됨으로써 세팅된 차압을 일정하게 유지하도록 구성되는 것을 특징으로 하는 차압유량조절밸브를 제공하게 된다.In order to achieve the above object, the present invention provides a differential pressure flow rate control valve for controlling a flow rate flowing in each branch pipe (65, 66, 67) in the heating hot water pipe of the boiler (60) to be constant, hot water recovery As the hot water flows in through the first flow passage 11 connected to the pipe 62 and the second flow passage 12 connected to the differential pressure sensing pipe 63 of the hot water supply pipe 61, the hot water recovery pressure P1 and the hot water supply pressure P2. Is applied to the flow regulating cartridge 30, the flow regulating cartridge 30 is elastically moved by the first and second springs 15 and 16, and the inlet / outlet part is caused by the valve seat 14. Flow rate supplied to the hot water supply pipe 61 by adjusting the hot water supply set pressure P3 while discharging the hot water of the first channel 11 to the third channel 13 through the orifice channel 31 which is variably divided. This adjustment is characterized in that it is configured to keep the set differential pressure constant It is to provide a differential pressure flow control valve.

또한, 본 발명은 유량조절핸들(40)을 이용하여 승강나사블록(41)을 상하이동시켜 상기 제1,2스프링(15,16)의 탄성력을 조절함으로써 상기 유량조절카트리 지(30)의 오리피스유로홈(31)을 통한 유량을 조절하도록 구성되는 것을 특징으로 하는 차압유량조절밸브를 제공하게 된다.In addition, the present invention adjusts the elastic force of the first and second springs (15, 16) by moving the elevating screw block 41 by using the flow control handle 40 orifice of the flow control cartridge 30 It is to provide a differential pressure flow control valve, characterized in that configured to adjust the flow rate through the flow path groove (31).

차압유량조절밸브, 카트리지, 난방온수배관 Differential pressure flow control valve, cartridge, heating hot water piping

Description

차압유량조절밸브{DIFFERENTIAL PRESSURE CONTROL VALVE}DIFFERENTIAL PRESSURE CONTROL VALVE

도1은 종래의 차압유량조절밸브를 예시하는 단면도,1 is a cross-sectional view illustrating a conventional differential pressure control valve;

도2는 본 발명에 따른 차압유량조절밸브의 설치위치를 예시하는 난방온수배관의 계통도,2 is a system diagram of a heating hot water pipe illustrating an installation position of a differential pressure flow control valve according to the present invention;

도3은 본 발명에 따른 차압유량조절밸브를 예시하는 단면도,3 is a cross-sectional view illustrating a differential pressure flow control valve according to the present invention;

도4는 본 발명에 따른 차압유량조절밸브의 유량조절카트리지를 예시하는 사시도이다.Figure 4 is a perspective view illustrating a flow rate control cartridge of the differential pressure flow rate control valve according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10: 밸브하우징 20: 안내하우징 30: 유량조절카트리지 60: 보일러 61: 온수공급배관 62: 온수회수배관 63: 차압감지배관 65,66,67: 분기배관 65-1,66-1,67-1: 전동밸브10: valve housing 20: guide housing 30: flow control cartridge 60: boiler 61: hot water supply pipe 62: hot water recovery pipe 63: differential pressure sensing pipe 65,66,67: branch pipe 65-1,66-1,67-1 : Electric valve

본 발명은 차압유량조절밸브에 관한 것으로, 더욱 상세하게는 난방순환배관과 같은 다분기의 폐회로배관에 있어 각 분기배관에 일정한 유량이 공급되도록 온수공급배관의 유량을 제어하는 차압유량조절밸브에 관한 것이다.The present invention relates to a differential pressure flow control valve, and more particularly, to a differential pressure flow control valve for controlling a flow rate of a hot water supply pipe so that a constant flow rate is supplied to each branch pipe in a multi-branch closed circuit pipe such as a heating circulation pipe. will be.

일반적으로, 다분기의 폐회로배관으로 이루어진 난방순환배관에는 정유량밸브류를 사용하여 각 분기배관에 그 개폐율과 관계없이 항상 일정한 유량이 흐르도록 제어하게 된다.In general, the heating circulation pipe consisting of a multi-circuit closed circuit pipe uses a constant flow valve to control a constant flow rate in each branch pipe regardless of its opening / closing ratio.

따라서, 난방순환배관의 각 분기배관은 다른 분기배관의 개폐상태에 따라 유량이 변동하게 된다.Therefore, the flow rate of each branch pipe of the heating circulation pipe is changed according to the opening and closing state of the other branch pipe.

이때, 정유량밸브의 문제를 보완하기 위하여 개발된 차압유량조절밸브는 부하기기의 리턴배관에 설치하여 부하기기의 적정차압을 유지시킴으로써 각 분기배관의 유량을 일정하게 유지하도록 구성되며, 특히 유량의 변동에 따른 유체적 상황을 제어할 수 없는 정유량밸브시스템의 문제를 개선하기 위하여 부하내의 유체적 상황에 따라 요구되는 차압 및 유량을 일정하게 유지시켜 주기 위하여 착안된 밸브구조이다.At this time, the differential pressure flow control valve developed to solve the problem of the constant flow valve is installed in the return piping of the load equipment to maintain the proper differential pressure of the load equipment is configured to maintain a constant flow rate of each branch pipe, in particular the In order to improve the problem of the constant flow valve system which cannot control the fluid situation due to the fluctuation, the valve structure is designed to maintain the differential pressure and flow rate required according to the fluid condition in the load.

한편, 등록실용신안공보 제0254789호에 기재된 차압유량조절밸브는 도1에 도시한 바와 같이 유로(2-2)와 연통되는 쳄버(2-4)가 구비되는 다이어프램케이스(2); 상기 쳄버(2-4)내에 설치되어 유압에 의해 승강되며, 하단에는 스핀들(3-2)이 연장되는 다이어플램(3); 상기 다이어프램(3)의 상부에 설치되어 다이어프램을 탄력 지지하는 스프링(4); 상기 다이어프램(3)에 작용하는 스프링(4)의 탄성력을 가감하기 위한 조절스크류(5); 상기 다이어프램케이스(2) 하부에 취하는 요크(6); 상기 요크(6)의 하부에 위치하며 유량조절구가 형성되는 바디(7); 상기 바디(7)의 유량조절구(7-2)와 대응되게 상기 스핀들(3-2)의 하단부에 설치되며 상기 다이어플램(3)의 승강에 따라 연동되어 유량조절구(7-2)의 개방 정도를 자동 제어하는 상부 콘(8); 및 상기 바디(7)의 하단부에 유량조절구(7-2)와 대응되게 설치되며 나사조절에 의한 승강작동에 의해 상기 유량조절구(7-2)를 개폐 가능하도록 하는 하부콘(9-2)이 구비되는 유량제한밸브(9)로 구성되어 있다.On the other hand, the differential pressure flow rate control valve described in Korean Utility Model Publication No. 0254789 includes a diaphragm case (2) having a chamber (2-4) in communication with the flow path (2-2) as shown in FIG. A diaphragm (3) installed in the chamber (2-4) and being elevated by hydraulic pressure, and having a spindle (3-2) extended at a lower end thereof; A spring (4) installed on an upper portion of the diaphragm (3) to elastically support the diaphragm; Adjusting screw (5) for regulating the elastic force of the spring (4) acting on the diaphragm (3); A yoke 6 which is disposed under the diaphragm case 2; A body 7 positioned below the yoke 6 and having a flow control mechanism; It is installed at the lower end of the spindle (3-2) to correspond to the flow regulating opening (7-2) of the body (7) is interlocked in accordance with the lifting and lowering of the diaphragm (3) of the flow regulating opening (7-2) An upper cone 8 for automatically controlling the degree of opening; And a lower cone 9-2 installed at a lower end of the body 7 to correspond to the flow regulating opening 7-2 and opening and closing the flow regulating opening 7-2 by lifting and lowering by screw adjustment. ) Is provided with a flow rate limiting valve (9).

그러나, 이러한 종래의 차압유량조절밸브는 차압이 직접 상부콘(8)에 작용하여 유량조절구(7-2)의 유량을 조절하는 것이 아니고, 유로(2-2)를 통해 차압에 의한 수압이 다이어프램(3)에 작용하면 다이어프램이 하강하는 동시에 스프링(4)이 수축되면서 스핀들(3-2)이 하강하여 상부콘(8)이 유량조절구(7-2)을 통과하는 유량을 간접적으로 조절하는 등 매우 복잡한 밸브구조를 가지고 있을 뿐만 아니라 차압이 다이어프램, 스프링, 스핀들을 거쳐 상부콘에 전달됨으로써 자연히 정밀한 유량조절이 불가능할 수 밖에 없는 문제가 발생된다.However, in the conventional differential pressure flow control valve, the differential pressure does not directly act on the upper cone 8 to regulate the flow rate of the flow rate regulator 7-2, and the hydraulic pressure due to the differential pressure through the flow path 2-2 is reduced. When acting on the diaphragm 3, the diaphragm descends and at the same time the spring 4 contracts, the spindle 3-2 descends and the upper cone 8 indirectly regulates the flow rate through the flow regulator 7-2. As well as having a very complicated valve structure, such as the differential pressure is transmitted to the upper cone through the diaphragm, spring, spindle, and the problem of natural precision flow rate adjustment is impossible.

더욱이, 상기한 차압유량조절밸브는 관로의 유속이 급격하게 변하면서 유체압력 또한 급격하게 상승하거나 하강하는 경우 다이어프램(3)의 신축이 급격하게 반복되면서 상부콘(8)에 의해 유량조절구(7-2)의 개폐율이 급격하게 조절됨으로써 하부콘(9-2)에 의한 별도의 차압조절기능이 구비되어 있다하더라도 그 조절범위가 크지 않는 등의 중대한 구조적 결함이 있다.In addition, the differential pressure flow control valve is a flow control port 7 by the upper cone (8) while the expansion and contraction of the diaphragm (3) is rapidly repeated when the flow pressure of the pipe is rapidly changed or the pressure rises or falls rapidly. Since the opening / closing ratio of -2) is rapidly adjusted, there is a serious structural defect such as that the adjustment range is not large even if a separate differential pressure control function is provided by the lower cone 9-2.

뿐만 아니라, 다이어프램(3)은 그 특성상 장시간 사용이 불가능하여 잦은 유지 보수가 필요하고, 구조적으로 대형화될 수 밖에 없는 문제를 안고 있다.In addition, the diaphragm 3 has a problem in that it cannot be used for a long time due to its characteristics and requires frequent maintenance, and inevitably becomes large in structure.

본 발명은 상기한 종래기술의 문제를 개선하기 위하여 안출된 것으로, 온수회수배관상에 설치되면서 각 분기배관로부터 회수되는 온수에 의해 작용되는 온수 회수압력 P1과, 온수공급배관과 연결된 차압감지배관을 통해 감지되는 온수공급압력 P2와의 압력차에 따라 탄성적으로 상하강되는 유량조절카트리지를 이용하여 온수공급설정압력 P3을 일정하게 유지시킴으로써 각 분기배관에 공급되는 온수의 유량을 일정하게 유지시키도록 구성되는 차압유량조절밸브를 제공함에 그 목적이 있다.The present invention has been made to improve the above-mentioned problems of the prior art, the hot water recovery pressure P1 acting by hot water recovered from each branch pipe while being installed on the hot water recovery pipe, and the differential pressure sensing pipe connected to the hot water supply pipe It is configured to maintain a constant flow rate of hot water supplied to each branch pipe by maintaining a constant hot water supply set pressure P3 by using a flow control cartridge elastically up and down according to the pressure difference with the hot water supply pressure P2 detected through. It is an object of the present invention to provide a differential pressure control valve.

또한, 본 발명은 유량조절핸들을 이용하여 승강나사블록을 상하강시켜 유량조절카트리지를 탄성지지하는 스프링의 탄성력을 조정함으로써 사용자가 자유롭게 원하는 유량으로 조절할 수 있도록 구성되는 차압유량조절밸브를 제공함에 또 하나의 목적이 있다.In addition, the present invention provides a differential pressure flow control valve configured to allow the user to freely adjust to the desired flow rate by adjusting the elastic force of the spring supporting the flow rate adjustment cartridge by raising and lowering the lifting screw block up and down using the flow rate adjustment handle There is one purpose.

상기한 목적을 달성하기 위하여 본 발명은 보일러의 난방온수배관에서 각 분기배관에 흐르는 유량을 일정하게 유지하도록 조절하는 차압유량조절밸브에 있어서, 온수회수배관과 연결된 제1유로와, 온수공급배관의 차압감지배관과 연결된 제2유로를 통해 온수가 유입되면서 온수회수압력 P1과 온수공급압력 P2의 차압이 유량조절카트리지에 작용되면 상기 유량조절카트리지가 제1,2스프링에 의해 탄성적으로 상하이동하고, 밸브시트에 의해 그 입출수부가 가변적으로 분할되는 오리피스유로홈을 통해 상기 제1유로의 온수가 제3유로(13)로 배출하면서 온수공급설정압력 P3가 조정되어 상기 온수공급배관(61)에 공급되는 유량이 조절됨으로써 세팅된 차압을 일정하게 유지하도록 구성되는 것을 특징으로 하는 차압유량조절밸브를 제공하게 된다.In order to achieve the above object, the present invention is a differential pressure flow rate control valve for controlling to maintain a constant flow rate in each branch pipe in the heating hot water pipe of the boiler, the first flow path connected to the hot water recovery pipe, and the hot water supply pipe When the hot water flows in through the second flow path connected to the differential pressure sensing pipe and the differential pressure between the hot water recovery pressure P1 and the hot water supply pressure P2 acts on the flow regulating cartridge, the flow regulating cartridge is elastically moved by the first and second springs. The hot water supply set pressure P3 is adjusted while the hot water of the first flow path is discharged to the third flow path 13 through an orifice flow path groove in which the inlet and outlet parts are variably divided by the valve seat, thereby adjusting the hot water supply pipe 61. It is to provide a differential pressure flow control valve, characterized in that configured to maintain the set differential pressure by adjusting the flow rate supplied.

그리고, 본 발명은 유량조절핸들을 이용하여 승강나사블록을 상하이동시켜 상기 제1,2스프링의 탄성력을 조절함으로써 상기 유량조절카트리지의 오리피스유로홈을 통한 유량을 조절하도록 구성되는 것을 특징으로 하는 차압유량조절밸브를 제공하게 된다.And, the present invention is configured to adjust the flow rate through the orifice flow path of the flow control cartridge by adjusting the elastic force of the first and second springs by moving the lifting screw block using a flow control handle. To provide a flow control valve.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

도2는 본 발명에 따른 차압유량조절밸브의 설치위치를 예시하는 난방온수배관의 순환계통도이고, 도3은 본 발명에 따른 차압유량조절밸브를 예시하는 단면도이며, 도4는 본 발명에 따른 차압유량조절밸브의 유량조절카트리지를 예시하는 사시도이다.2 is a circulation system diagram of a heating hot water pipe illustrating an installation position of a differential pressure flow control valve according to the present invention, Figure 3 is a cross-sectional view illustrating a differential pressure flow control valve according to the present invention, Figure 4 is a differential pressure according to the present invention It is a perspective view which illustrates the flow control cartridge of a flow control valve.

본 발명의 일 실시예에 따르면, 난방온수배관은 도2에 도시한 바와 같이 보일러(60)에서 데워진 온수가 온수공급배관(61)을 통해 공급되고, 다시 각 전동밸브(65-1,66-1,67-1..)에 의해 개폐되는 각 분기배관(65,66,67...)을 거쳐서 온수회수배관(62)를 통해 다시 보일러(60)로 회수되는 순환배관구조로 구성되어 있다.According to an embodiment of the present invention, the heating hot water pipe is supplied with hot water heated in the boiler 60 through the hot water supply pipe 61, as shown in Figure 2, again each electric valve (65-1, 66-) 1,67-1 ..) through the branch pipe (65,66,67 ...) is a circulating piping structure that is recovered back to the boiler 60 through the hot water recovery pipe 62. .

이때, 본 발명에 따른 차압유량조절밸브는 온수회수배관(62)상에 설치되어 각 분기배관(65,66,67...)에서 회수되는 온수로부터의 온수회수압력 P1과, 온수공급배관(61)과 연결된 차압감지배관(63)을 통해 감지되는 온수공급압력 P2와의 차압을 이용하여 온수공급설정압력 P3을 일정하게 유지시킴으로써 각 분기배관(65,66,67...)에 공급되는 온수의 유량을 일정하게 유지시키도록 구성되어 있다.At this time, the differential pressure flow control valve according to the present invention is installed on the hot water recovery pipe 62 and the hot water recovery pressure P1 from the hot water recovered in each branch pipe (65, 66, 67 ...), and the hot water supply pipe ( The hot water supplied to each branch pipe (65, 66, 67 ...) by maintaining a constant hot water supply set pressure P3 by using the differential pressure with the hot water supply pressure P2 detected through the differential pressure sensing pipe 63 connected to 61). It is configured to keep the flow rate of the constant.

다시 말하면, 본 발명에 따른 차압유량조절밸브는 도3에 도시한 바와 같이 온수회수배관(62)과 연결된 제1유로(11)를 통해 온수가 유입되면서 온수회수압력 P1이 작용하는 동시에 온수공급배관(61)의 온수가 차압감지배관(63)을 거쳐 제2유로(12)로 유입되면서 온수공급압력 P2가 작용하게 되면 P1과 P2의 차압만큼 유량조절카트리지(30)가 제1,2스프링(15,16)에 의해 탄성적으로 밸브시트(14)를 따라 상하이동하게 되고, 유량조절카트리지의 외주면상에 구비된 오리피스유로홈(31)의 개도량이 밸브시트에 의해 조절되면서 오리피스유로홈중 밸브시트의 상부측에 위치하는 출수부를 통해 배출되는 유량을 조절함으로써 온수공급설정압력 P3을 일정하게 유지시키거나 재설정하게 된다.In other words, in the differential pressure flow control valve according to the present invention, as the hot water flows in through the first flow passage 11 connected to the hot water recovery pipe 62 as shown in FIG. When the hot water of (61) flows into the second flow passage 12 through the differential pressure sensing pipe 63 and the hot water supply pressure P2 acts, the flow regulating cartridge 30 has the first and second springs as much as the differential pressure between P1 and P2. 15, 16 is elastically moved along the valve seat 14, and the opening amount of the orifice flow path groove 31 provided on the outer circumferential surface of the flow regulating cartridge is controlled by the valve seat and the valve of the orifice flow path groove The hot water supply set pressure P3 is kept constant or reset by adjusting the flow rate discharged through the water outlet located at the upper side of the seat.

이때, 밸브하우징(10)은 제1유로(11)를 통해 온수회수배관(62)의 온수가 유입되고, 유입된 온수가 온수회수압력 P1으로서 밸브시트(14)를 따라 상하이동되는 유량조절카트리지(30)를 위로 밀어올리는 힘으로 작용하는 동시에 유량조절카트리지의 외주면상 구비된 오리피스유로홈(31)을 통해 제3유로(13)로 배출되면서 온수공급설정압력 P3을 형성하도록 구성되어 있다.At this time, the valve housing 10 flows hot water in the hot water recovery pipe 62 through the first flow path 11, the flow rate of the cartridge is moved along the valve seat 14 as the hot water recovery pressure P1 It is configured to form a hot water supply set pressure P3 while being discharged to the third flow path 13 through the orifice flow path groove 31 provided on the outer circumferential surface of the flow control cartridge at the same time acting as a force to push up 30.

또한, 밸브하우징(10)은 온수공급배관(61)과 연결된 차압감지배관(63)의 온수가 제2유로(12)를 통해 유입되고, 유입된 이 온수가 온수공급압력 P2로서 유량조절카트리지를 밑으로 하강시키는 힘으로 작용하도록 구성되어 있다.In addition, the valve housing 10 is the hot water of the differential pressure sensing pipe 63 connected to the hot water supply pipe 61 is introduced through the second flow path 12, the introduced hot water flow rate control cartridge as the hot water supply pressure P2. It is configured to act as a downward force.

여기서, 밸브하우징(10)의 상하부측에 각각 안내하우징(20)과 베이스하우징(17)이 나사결합되어 있는데, 안내하우징(20)에는 그 내주면에 승강나사블록(41)이 나사결합되어 있고, 이 승강나사블록은 유량조절핸들(40)에 의해 회전되면서 상하방향으로 이동되도록 구성되어 있다.Here, the guide housing 20 and the base housing 17 are screwed to the upper and lower sides of the valve housing 10, respectively, the lifting screw block 41 is screwed to the inner peripheral surface of the guide housing 20, The lifting screw block is configured to move in the vertical direction while being rotated by the flow control handle 40.

그리고, 제1스프링(15)은 밸브하우징(10)에 내장되면서 그 하부가 베이스하우징(17)에 고정된 상태에서 그 상부측이 유량조절카트리지(30)의 하부에 삽입 장착되어 유량조절카트리지(30)의 하부를 탄성적으로 지지하도록 구비되어 있고, 제2스프링(16)은 벨브하우징과 안내하우징(20)에 내장되면서 그 상부측이 승강나사블록(41)내에 삽입고, 그 하부측이 유량조절카트리지의 상부측에 끼워진 상태로 설치되어 유량조절카트리지(30)의 상부를 탄성적으로 지지하도록 구비되어 있다.Then, the first spring 15 is embedded in the valve housing 10, while the lower side is fixed to the base housing 17, the upper side is inserted into the lower portion of the flow control cartridge 30 is installed flow control cartridge ( 30 is provided to elastically support the second spring 16, the second spring 16 is embedded in the valve housing and the guide housing 20, the upper side is inserted into the lifting screw block 41, the lower side is It is installed to be fitted to the upper side of the flow control cartridge is provided to elastically support the top of the flow control cartridge (30).

특히, 제1,2스프링(15,16)은 유량조절핸들(40)을 이용하여 상하이동시키는 승강나사블록(41)에 의해 그 탄성력이 조절되는데, 승강나사블록이 상승되면 그 탄성력이 감소되면서 유량조절카트리지(30)에 대한 탄성지지력이 저하되어 유량조절카트리지의 상승과 함께 오리피스유로홈(31)을 통한 유량의 증가를 유도하게 되고, 승강나사블록이 하강되면 그 탄성력이 증가하면서 유량조절카트리지에 대한 탄성지지력이 상승하여 유량조절카트리지의 하강과 함께 오리피스유로홈을 통한 유량의 감소를 조절하게 된다.In particular, the elastic force of the first and second springs 15 and 16 is controlled by the elevating screw block 41 which moves up and down using the flow control handle 40. When the elevating screw block is raised, the elastic force is reduced. The elastic support force for the flow regulating cartridge 30 is lowered to induce an increase in the flow rate through the orifice flow path groove 31 with the rise of the flow regulating cartridge, and when the elevating screw block is lowered, the elastic force increases and the flow regulating cartridge is increased. The elastic support force for the rise is to control the decrease of the flow rate through the orifice flow path with the descending of the flow control cartridge.

한편, 유량조절카트리지(30)는 제1,2스프링(15,16)에 의해 상하 탄성지지되면서 그 하부측에서 작용하는 온수회수압력 P1과, 그 상부측에 작용하는 온수공급압력 P2의 차압에 의해 밸브시트(14)를 따라 상하 탄성이동을 하도록 구성되는데, 도4에 도시한 바와 같이 그 내주면 중앙측에 격판(32)을 설치하여 유체의 흐름을 차단하는 동시에 제1,2스프링(15,16)의 지지판 작용을 하게 되고, 그 외주면상에 오리피스유로홈(31)이 구비되어 있다.On the other hand, the flow regulating cartridge 30 is supported by the first and second springs (15, 16) while being supported by the differential pressure of the hot water recovery pressure P1 acting on the lower side and the hot water supply pressure P2 acting on the upper side thereof. It is configured to move up and down elastically along the valve seat 14, as shown in Figure 4 by installing a diaphragm 32 in the center of the inner circumferential surface to block the flow of the fluid at the same time the first and second springs (15, It acts as a support plate of 16, and the orifice flow path groove 31 is provided on the outer peripheral surface thereof.

이때, 오리피스유로홈(31)은 위쪽으로 올라갈수록 그 폭이 서서히 작아지는 대략 삼각형상을 이루면서 밸브시트(14)에 의해 그 입수측과 출수측의 경계가 정해지게 되는데, 즉 밸브시트의 하부측에 위치하는 부위를 통해 제1유로(11)의 온수가 유입되고, 밸브시트의 상부측에 위치하는 부위를 통해 유출되어 제3유로(13)로 배출되도록 구성되어 있다.At this time, the orifice flow path groove 31 has a substantially triangular shape in which its width gradually decreases as it goes upward, and the boundary between the inlet side and the outlet side is defined by the valve seat 14, that is, the lower side of the valve seat. The hot water of the first flow passage 11 is introduced through the portion located in the outlet, and is discharged through the portion located at the upper side of the valve seat to be discharged to the third passage 13.

따라서, 오리피스유로홈(31)은 유량조절카트리지(30)가 상승되면서 밸브시트(14)의 상부측에 위치하는 부위가 증가할수록 출수량이 늘어나게 되지만 유량조절카트리지가 하강되면서 밸브시트(14)의 상부측에 위치하는 부위가 감소할수록 출수량이 줄어 들도록 구성되어 있다.Therefore, the orifice flow path 31 increases the amount of water discharged as the portion located on the upper side of the valve seat 14 increases as the flow rate regulating cartridge 30 rises, but as the flow rate regulating cartridge descends, the upper portion of the valve seat 14 As the portion located on the side decreases, the amount of water output is reduced.

이상과 같이 구성되는 본 발명의 작용을 설명하면, 도2에서 예컨대 온수공급배관(61)을 흐르는 유량이 3L/min이고, 제1,2,3분기배관(65,66,67)에 각각 1L/min의 유량이 흐르고 있는 상태에서 제2,3전동밸브(66-1,67-1)를 제어하여 제2,3분기배관를 닫게 되면 온수공급배관을 통해 공급되는 3L/min의 유량은 자연히 제1분기배관으로만 흐르게 된다.Referring to the operation of the present invention configured as described above, in Figure 2, for example, the flow rate flowing through the hot water supply pipe 61 is 3L / min, respectively, 1L to the first, second, third branch pipes (65, 66, 67) If the second and third branch pipes are closed by controlling the second and third electric valves (66-1,67-1) while the flow rate is flowing in / min, the flow rate of 3L / min supplied through the hot water supply pipe is naturally reduced. Only flow to the first quarter piping.

이때, 제1분기배관(65)에는 자연히 적정 유량인 1L/min 보다 많은 유량이 통과하게 되고, 온수공급배관(61)에는 유량이 정체되면서 유체의 압력이 증가하게 되며, 이에 따라 차압감지배관(63)을 거쳐 제2유로(12)를 통해 작용되는 온수공급압력 P2가 커지게 된다.At this time, the flow rate more than 1L / min, which is naturally a proper flow rate is passed through the first branch pipe (65), and the pressure of the fluid increases while the flow rate is stagnant, and thus the differential pressure sensing pipe ( The hot water supply pressure P2 acting through the second passage 12 through 63 is increased.

또한, 제1분기배관(65)을 통해 회수되는 유량이 기존의 유량인 3L/min보다 적게 됨에 따라 온수회수배관(62)을 거쳐 제1유로(11)를 통해 작용되는 온수회수압력 P1이 감소하게 된다.In addition, as the flow rate recovered through the first branch pipe 65 is less than the existing flow rate 3L / min, the hot water recovery pressure P1 acting through the first flow path 11 through the hot water recovery pipe 62 is reduced. Done.

따라서, 온수공급압력 P2이 커지는 반면에 온수회수압력 P1이 감소됨에 따라 유량조절카트리지(30)는 하강하게 되고, 오리피스유로홈(31)중 밸브시트(14)의 상부측에 위치하는 부위가 적어지면서 밸브시트의 하부측에 위치하는 부위가 커짐에 따라 오리피스유로홈을 통해 제3유로(13)로 배출되는 유량이 적어지게 되며, 결국 온수공급설정압력 P3가 낮아지게 된다.Accordingly, as the hot water supply pressure P2 is increased while the hot water recovery pressure P1 is decreased, the flow rate control cartridge 30 is lowered, and the portion of the orifice flow path groove 31 located on the upper side of the valve seat 14 is less. As the portion located on the lower side of the valve seat increases, the flow rate discharged to the third flow passage 13 through the orifice flow passage groove decreases, and thus the hot water supply set pressure P3 is lowered.

여기서, 제3유로(13)을 통해 조정되는 온수공급설정압력 P3가 낮게 조정됨에 따라 온수공급배관(61)을 통해 공급되는 온수공급압력 P2가 낮아지게 되고, 결국 온수공급배관의 온수유량이 1L/min로 조정되면서 제1분기배관(65)을 흐르는 유량을 적정유량인 1L/min로 조정하게 된다.Here, as the hot water supply set pressure P3 adjusted through the third passage 13 is adjusted to be low, the hot water supply pressure P2 supplied through the hot water supply pipe 61 is lowered, so that the hot water flow rate of the hot water supply pipe is 1L. The flow rate flowing through the first branch pipe 65 while being adjusted to / min is adjusted to 1L / min, which is an appropriate flow rate.

그리고, 본 발명의 차압유량조절밸브에서는 온수공급배관(61)에서 공급되는 유량이 감소되면서 온수공급압력 P2가 감소되고, 동시에 온수회수배관(62)의 회수유량이 감소되면서 온수회수압력 P1 또한 감소되어 결국 유량조절카트리지(30)의 위치가 별도의 상하이동없이 그대로 유지되며, 이에 따라 온수공급설정압력 P3가 일정하게 유지된다.Further, in the differential pressure flow control valve of the present invention, as the flow rate supplied from the hot water supply pipe 61 decreases, the hot water supply pressure P2 decreases, and at the same time, the hot water recovery pressure P1 also decreases as the recovery flow rate of the hot water recovery pipe 62 decreases. As a result, the position of the flow control cartridge 30 is maintained as it is without a separate shandong, accordingly, the hot water supply set pressure P3 is kept constant.

한편, 유량조절핸들(40)을 돌리면 승강나사블록(41)이 안내하우징(20)의 내주면을 따라 나사결합상태로 상하이동하게 되고, 승강나사블록(41)이 상하이동되면서 제2스프링(16)의 탄성력이 조정되는데, 예컨대 승강나사블록이 상승하게 되면 제2스프링의 탄성력이 감소되어 유량조절카트리지(30)의 상승이 용이하게 되면서 오리피스유로홈(31)을 통해 배출되는 유량을 증가시키게 되고, 이로써 온수공급설정압력 P3를 높게 설정할 수 있게 되며, 결국 온수공급배관(61)으로 공급되는 온수 의 유량을 증대시키도록 조절할 수 있게 된다.Meanwhile, when the flow adjusting handle 40 is turned, the lifting screw block 41 moves up and down along the inner circumferential surface of the guide housing 20, and the lifting screw block 41 moves up and down to move the second spring 16. The elastic force of the) is adjusted, for example, when the elevating screw block is increased, the elastic force of the second spring is reduced, so that the flow rate regulating cartridge 30 is easily increased, and the flow rate discharged through the orifice flow path groove 31 is increased. Thus, it is possible to set the hot water supply set pressure P3 high, and eventually to adjust to increase the flow rate of hot water supplied to the hot water supply pipe (61).

반면에, 승강나사블록(41)이 하강하게 되면 제2스프링의 탄성력이 커지게 되어 유량조절카트리지(30)의 하강이 용이하게 되면서 오리피스유로홈(31)을 통해 배출되는 유량을 감소시키게 되고, 이로써 온수공급설정압력 P3를 낮게 설정할 수 있게 되며, 결국 온수공급배관(61)으로 공급되는 온수의 유량이 작아지도록 조절할 수 있게 된다.On the other hand, when the elevating screw block 41 is lowered, the elastic force of the second spring is increased to facilitate the lowering of the flow regulating cartridge 30 to reduce the flow rate discharged through the orifice flow path groove 31, As a result, the hot water supply set pressure P3 can be set low, and thus, the flow rate of the hot water supplied to the hot water supply pipe 61 can be adjusted to be small.

요컨대, 본 발명에 따른 차압유량조절밸브는 온수회수압력 P1과 온수공급압력 P2의 차압이 직접 유량조절카트리지(30)에 작용하도록 구성되면서 유량조절카트리지가 차압에 의해 탄성적으로 상하강되는 동시에 오리피스유로홈(31)을 통해 바로 유량을 조절하도록 구성됨으로써 그 밸브구조가 간단하면서도 콤팩트할 뿐만 아니라 신속하고도 정밀한 유량조절이 가능하고, 승강나사블록(41)을 이용하여 유량조절카트리지를 탄성 지지하는 스프링(15,16)의 탄성력을 조정함으로써 차압에 의한 유량조절범위를 확대할 수 있도록 구성하는 데에 그 기술적 특징이 있다할 것이다.In other words, the differential pressure flow control valve according to the present invention is configured so that the differential pressure of the hot water recovery pressure P1 and the hot water supply pressure P2 acts directly on the flow regulating cartridge 30 while the flow regulating cartridge is elastically moved up and down by the differential pressure. It is configured to directly adjust the flow rate through the flow path groove 31, the valve structure is simple and compact, as well as fast and precise flow rate control, and elastically supporting the flow rate adjustment cartridge using the lifting screw block (41) It will be technical features to configure the spring 15, 16 to adjust the elastic force to expand the range of the flow rate adjustment by the differential pressure.

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하였으나, 이는 본 발명의 범주에서 벗어나지 않는 한도내에서 여러가지 변형이 가능함은 물론이다.As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention.

그러므로, 본 발명의 범위는 상술된 실시예에 의해 한정되어져서는 안되며, 후술하는 청구범위 뿐만 아니라 청구범위와 균등한 구성에 의해 정해져야 함은 당연하다.Therefore, it should be understood that the scope of the present invention should not be limited by the above-described embodiments, but should be defined not only by the claims below but also by the structures equivalent to the claims.

이상과 같이 구성되는 본 발명은 차압이 직접 유량조절카트리지에 작용되는 동시에 유량조절카트리지가 차압에 의해 탄성적으로 상하강되면서 유량을 조절하도록 구성됨으로써 밸브구조가 간단하면서도 콤팩트할 뿐만 아니라 신속하고도 정밀한 유량조절이 가능하고, 유량조절카트리지를 탄성 지지하는 스프링의 탄성력을 조정함으로써 차압에 의한 유량조절범위를 확대할 수 있는 등의 효과를 제공하게 된다.The present invention constituted as described above is configured to adjust the flow rate while the differential pressure acts directly on the flow regulating cartridge and the flow regulating cartridge is elastically moved up and down by the differential pressure, so that the valve structure is simple and compact as well as quick and precise. It is possible to adjust the flow rate, and by adjusting the elastic force of the spring for elastically supporting the flow rate regulating cartridge, it is possible to provide an effect of expanding the flow rate adjustment range by the differential pressure.

Claims (2)

난방온수배관에서 각 분기배관(65,66,67)에 흐르는 유량을 일정하게 유지하도록 조절하는 차압유량조절밸브에 있어서,In the differential pressure flow control valve for regulating to maintain a constant flow rate flowing from the heating hot water pipe to each branch pipe (65, 66, 67), 온수회수배관(62)과 연결된 제1유로(11)와, 온수공급배관(61)의 차압감지배관(63)과 연결된 제2유로(12)를 통해 온수가 유입되면서 온수회수압력 P1과 온수공급압력 P2의 차압이 유량조절카트리지(30)에 작용되면 상기 유량조절카트리지(30)가 제1,2스프링(15,16)에 의해 탄성적으로 상하이동하고, 밸브시트(14)에 의해 그 입출수부가 가변적으로 분할되는 오리피스유로홈(31)을 통해 상기 제1유로(11)의 온수가 제3유로(13)로 배출하면서 온수공급설정압력 P3가 조정되어 상기 온수공급배관(61)에 공급되는 유량이 조절됨으로써 세팅된 차압을 일정하게 유지하도록 구성되는 것을 특징으로 하는 차압유량조절밸브.Hot water is supplied through the first flow path 11 connected to the hot water return pipe 62 and the second flow path 12 connected to the differential pressure sensing pipe 63 of the hot water supply pipe 61 to supply the hot water recovery pressure P1 and the hot water. When the differential pressure of the pressure P2 acts on the flow regulating cartridge 30, the flow regulating cartridge 30 is moved up and down elastically by the first and second springs 15 and 16, and is drawn in and out by the valve seat 14. The hot water supply set pressure P3 is adjusted and supplied to the hot water supply pipe 61 while the hot water of the first flow passage 11 is discharged to the third flow passage 13 through the orifice flow path groove 31 in which the water part is variably divided. The differential pressure flow rate control valve, characterized in that configured to maintain a constant differential pressure set by the flow rate is adjusted. 청구항 1에 있어서,The method according to claim 1, 유량조절핸들(40)을 이용하여 승강나사블록(41)을 상하이동시켜 상기 제1,2스프링(15,16)의 탄성력을 조절함으로써 상기 유량조절카트리지(30)의 오리피스유로홈(31)을 통한 유량을 조절하도록 구성되는 것을 특징으로 하는 차압유량조절밸브.The orifice flow path 31 of the flow regulating cartridge 30 is adjusted by adjusting the elastic force of the first and second springs 15 and 16 by moving the elevating screw block 41 using the flow regulating handle 40. Differential pressure flow control valve, characterized in that configured to adjust the flow through.
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KR101654615B1 (en) 2015-11-11 2016-09-06 (주)에이스투엠 Heating flow control system
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