KR20100105114A - Proportional flow-rate control system using pressure difference - Google Patents

Proportional flow-rate control system using pressure difference Download PDF

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KR20100105114A
KR20100105114A KR1020090023970A KR20090023970A KR20100105114A KR 20100105114 A KR20100105114 A KR 20100105114A KR 1020090023970 A KR1020090023970 A KR 1020090023970A KR 20090023970 A KR20090023970 A KR 20090023970A KR 20100105114 A KR20100105114 A KR 20100105114A
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South Korea
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hot water
heating
pressure difference
pipe
return
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KR1020090023970A
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Korean (ko)
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KR101040692B1 (en
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이태원
김용기
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한국건설기술연구원
신한콘트롤밸브 주식회사
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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
    • F24D3/1066—Distributors for heating liquids
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
    • 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
    • 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
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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
    • F24D2220/04—Sensors
    • F24D2220/046—Pressure sensors

Abstract

PURPOSE: A proportional flow-rate control system using pressure difference is provided to prevent the noise from emitting from a micro flow control valve. CONSTITUTION: A proportional flow-rate control system using pressure difference comprises a hot water supply pipe(100), a hot water supply unit(200), a plurality of micro-flow control valves(11), a hot water return unit(300), a plurality of for automatic temperature controllers(22), a hot water return pipe(400), a house-customized flow control valve(33), a differential pressure sensor(44), a proportional flow control valve(55) and a controller(500). The hot water supply unit supplies the hot water to each heating space through a plurality of supply branch pipes(210). The micro flow control valves passively control the opening degree of the supply branch pipes. The hot water return unit collects the returned hot water through a plurality of return water branch pipes(310). The automatic temperature controller comprises a valve automatically controlling the opening degree of the return water branch pipe. The hot water return pipe re-circulates the hot water collected in the hot water return unit to a central machine room. The house-customized flow control valve controls the flow rate of the hot water to become a fixed flow rate. The differential pressure sensor senses the pressure difference of the hot water supply pipe and the hot water return pipe. The proportional flow control valve automatically controls the opening degree of the valve so that the pressure difference sensed by the differential pressure sensor becomes(or does not exceed) a fixed pressure difference. The controller receives a signal for the pressure difference sensed by the differential pressure sensor and sends a control signal controlling the opening degree of the proportional flow control valve. The pressure difference between the hot water supply pipe and the hot water return pipe are controlled to become(or not to exceed) a fixed pressure difference by the controller.

Description

차압정보를 이용한 비례유량조절시스템{Proportional Flow-rate Control System using Pressure Difference}Proportional Flow-rate Control System using Pressure Difference

본 발명은 차압정보를 이용한 비례유량조절시스템에 관한 것으로서, 중앙집중 난방방식의 공동주택 세대 내 온수분배시스템에 설치되며, 난방이 가동된 후 실내온도가 상승함에 따라 방별 자동온도조절기가 닫혀 난방공급수관과 난방환수관의 압력차가 상승하게 되면 비례유량조절밸브를 작동하여 미리 설정된 차압 이하로 유지시킴으로써 미세유량조절밸브의 통과 유량을 감소시켜 미세유량조절밸브에서 발생하는 소음을 방지하는 것을 특징으로 한다.The present invention relates to a proportional flow control system using the differential pressure information, is installed in the hot water distribution system in the central household heating system of the centralized heating method, the heating is supplied by closing the thermostat of the room as the room temperature rises after the heating is operated When the pressure difference between the water pipe and the heating return pipe increases, the proportional flow control valve is operated to maintain the pressure below the preset differential pressure, thereby reducing the flow rate of the micro flow control valve to prevent noise generated from the micro flow control valve. .

최근 들어 도1에 도시된 바와 같은 중앙집중 난방방식 공동주택에 시스템 온수분배기가 많이 보급되고 있으나 적정한 유량제어를 수행하지 못하여 미세 유량조절밸브 등에서 소음이 발생하는 등의 민원이 제기되고 있는 실정이다.Recently, the system hot water distributor is widely distributed in the centralized heating type apartment house as shown in FIG. 1, but there are complaints such as noise generated from the fine flow control valve due to failure to perform proper flow control.

세대 유량제어를 위하여 정유량밸브가 설치되어 있으나 이는 세대 내 전체 난방배관을 통과하는 난방수 유량이 설정유량이 되도록 조절할 뿐, 설정유량 이하 의 유량제어는 수행할 수 없다는 한계가 있으며 이로 인하여 방별로 설치되어 있는 미세유량조절밸브에 소음이 발생하는 경우가 자주 발생한다.The fixed flow valve is installed to control the flow rate of the household, but it regulates only the flow rate of the heating water passing through the entire heating piping in the household so that the flow rate below the set flow rate cannot be performed. Noise is often generated in the micro flow control valve installed.

미세유량조절밸브에 소음이 발생하는 조건은 현장 및 제품에 따라 달라지나 일반적으로 난방이 시작되어 어느 정도 난방 운전시간이 경과한 후 방별 난방용 자동온도조절기가 하나, 둘씩 닫히게 되고, 결국 하나의 방에 대한 난방용 자동온도조절기만 열린 상태일 경우, 방별 설계유량(일반적으로 1 L/min 정도)보다 많은 유량이 흐르게 되어 미세유량조절밸브에서 소음이 발생하게 되는 것이다.The condition where noise occurs in the microfluidic control valve varies depending on the site and the product, but in general, after the heating operation starts and the heating operation time has elapsed, the thermostat for the heating of the room is closed one by one, and eventually, one room When only the thermostat for heating is open, the flow rate is higher than the design flow rate (generally about 1 L / min) for each room, and noise is generated in the micro flow control valve.

상기한 목적을 달성하기 위하여 창작된 본 발명은 미세유량조절밸브에서 발생되는 소음을 방지하고 최소의 비용으로 최대의 난방효과를 거둘 수 있는 새로운 시스템을 제공함을 그 목적으로 한다.The present invention created to achieve the above object is to provide a new system that can prevent the noise generated in the micro flow control valve and achieve the maximum heating effect at a minimum cost.

상기한 목적을 달성하기 위한 본 발명의 기술적 구성은 다음과 같다.The technical configuration of the present invention for achieving the above object is as follows.

본 발명은 중앙기계실의 온수를 공급하는 난방공급수관(100); 상기 난방공급수관(100)으로부터 공급받은 온수를 다수 개의 공급분기관(210)을 통하여 구획된 각각의 난방공간으로 분배하는 온수분배기공급구부(200); 상기 온수분배기공급구부(200)의 상기 공급분기관(210) 각각에 연결되어 상기 공급분기관(210)의 개도를 수동으로 조절하는 다수 개의 미세유량조절밸브(11); 구획된 각각의 난방공간을 통과하여 환수되는 온수를 다수 개의 환수분기관(310)을 통하여 집수하는 온수분배기환수구부(300); 상기 온수분배기환수구부(300)의 상기 환수분기관(310) 각각에 연결되어 상기 환수분기관(310)의 개도를 자동으로 조절하는 밸브가 포함된 다수 개의 난방용 자동온도조절기(22); 상기 온수분배기환수구부(300)에 집수된 온수를 중앙기계실로 재순환하는 난방환수관(400); 상기 난방환수관(400)에 설치되어 미리 설정된 설정유량이 초과하지 않도록 온수의 유량을 제어하는 세대정유량밸브(33); 상기 난방공급수관(100)과 상기 난방환수관(400)의 압력차를 감지하는 차압센 서(44); 상기 난방환수관(400)에 설치되어 상기 차압센서(44)에서 감지되는 압력차를 이용하여 상기 난방공급수관(100)과 상기 난방환수관(400)의 압력차를 설정압력차가 되도록(또는 설정압력차를 초과하지 않도록) 밸브의 개도가 자동조절되는 비례유량제어밸브(55); 및, 상기 차압센서(44)에서 감지된 압력차에 대한 신호를 수신하여 상기 비례유량제어밸브(55)의 개도를 조절하는 제어신호를 발신하는 제어부(500);를 포함하여 구성되는 것을 특징으로 한다.The present invention provides a heating supply water pipe 100 for supplying hot water of the central machine room; A hot water distributor supply part 200 for distributing hot water supplied from the heating supply water pipe 100 to each heating space partitioned through a plurality of supply branch pipes 210; A plurality of fine flow rate control valves 11 connected to each of the supply branch pipes 210 of the hot water distributor supply port 200 to manually adjust the opening degree of the supply branch pipe 210; A hot water distributor return port unit 300 for collecting hot water returned through each of the partitioned heating spaces through the plurality of water return pipes 310; A plurality of thermostats 22 for heating, including valves connected to each of the water return pipes 310 of the hot water distributor return port 300 to automatically adjust the opening degree of the water return pipe 310; A heating return pipe 400 for recycling hot water collected in the hot water distributor return port unit 300 to a central machine room; A generation constant flow rate valve 33 installed in the heating return pipe 400 to control a flow rate of hot water so as not to exceed a preset set flow rate; A differential pressure sensor (44) for detecting a pressure difference between the heating supply water pipe (100) and the heating return pipe (400); The pressure difference between the heating supply water pipe 100 and the heating return pipe 400 is set to be a set pressure difference by using the pressure difference installed in the heating return pipe 400 and sensed by the differential pressure sensor 44. A proportional flow rate control valve 55 which automatically adjusts the opening degree of the valve so as not to exceed the pressure difference; And a control unit 500 for receiving a signal for the pressure difference sensed by the differential pressure sensor 44 and transmitting a control signal for adjusting the opening degree of the proportional flow control valve 55. do.

본 발명의 기술적 구성에 따른 효과는 다음과 같다.Effects according to the technical configuration of the present invention are as follows.

첫째, 차압측정을 이용한 세대별 유량제어시스템을 기존의 온수분배시스템(또는 난방제어시스템)에 설치함으로써 적절한 유량제어를 이용하여 방별로 과다유량이 흐르는 것을 방지하여 온수분배시스템에서 발생하는 소음을 방지할 수 있다.First, by installing the generation-specific flow control system using differential pressure measurement in the existing hot water distribution system (or heating control system), it prevents excessive flow rate by room by using the proper flow control to prevent noise generated in the hot water distribution system. can do.

즉, 차압측정을 이용한 세대별 유량제어시스템은 세대 난방이 운전되어 일정기간 경과한 후, 하나의 방만 난방되고 있는 상태에 도달하게 되면, 난방공급수관(100)과 난방환수관(400) 사이의 차압이 상승하게 되는데, 이를 측정하여 유량을 제어함으로써 차압이 과다 상승하는 것을 방지하고 방별 과다 유량이 흐르는 것을 방지하여 미세유량조절밸브에서 발생하는 소음을 미연에 방지할 수 있음은 물론 과다유량 방지를 통하여 난방에너지도 절감할 수 있다.That is, in each generation flow control system using the differential pressure measurement, when the heating of the household reaches a state where only one room is heated after a certain period of time, the heating supply water pipe 100 and the heating return pipe 400 The differential pressure rises, and by measuring the flow rate, it prevents the differential pressure from rising excessively and prevents the excessive flow of the flow, thereby preventing the noise generated from the micro flow control valve in advance and preventing the excessive flow. Heating energy can also be reduced.

또한, 기계실(보일러)의 운전조건으로부터 추정되는 공급수온도와 온도센서(66)에서 감지한 환수온도의 차이를 증대시키는 방향으로 비례유량제어밸브(55) 를 자동조절하여 적은 유량으로 충분한 열량이 공급되도록 하는데, 이와 같은 방법으로 난방수 펌핑 동력을 절감하여 효율적인 난방을 수행할 수 있다.In addition, the proportional flow control valve 55 is automatically adjusted in a direction to increase the difference between the supply water temperature estimated from the operating conditions of the machine room (boiler) and the return temperature detected by the temperature sensor 66, so that a sufficient amount of heat is obtained at a small flow rate. In this way, the heating water pumping power can be reduced and efficient heating can be performed.

이하에서는 본 발명의 구체적 실시예를 첨부도면을 참조하여 보다 상세히 설명한다.Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

난방공급수관(100)은 도2에 도시된 바와 같이 중앙기계실의 온수를 각 세대 별로 공급하는 공급관 역할을 한다.The heating supply water pipe 100 serves as a supply pipe for supplying hot water in the central machine room for each household, as shown in FIG. 2.

온수분배기공급구부(200)는 난방공급수관(100)으로부터 공급받은 온수를 다수 개의 공급분기관(210)을 통하여 구획된 각각의 난방공간으로 분배하는 역할을 하는데, 일반적으로 사용되는 온수분배기공급구부(200)와 유사한 바 별도로 자세한 도시는 생략한다.The hot water distributor supply part 200 serves to distribute the hot water supplied from the heating supply water pipe 100 to each heating space partitioned through the plurality of supply branch pipes 210, and a hot water distributor supply part generally used ( Similar to 200), detailed description is omitted.

미세유량조절밸브(11)는 온수분배기공급구부(200)에 설치되어 각각의 공급분기관(210)과 연결되는데, 초기 셋팅 과정에서 공급분기관(210)의 개도를 조절하여 각 난방공간으로 공급되는 온수의 유량을 조절하는데, 각 난방공간 별 난방코일의 길이 차이에 따른 열량불균형을 해소하기 위한 일반적인 장치인 바 별도의 도시는 생략한다. The micro flow rate control valve 11 is installed in the hot water distributor supply port part 200 and connected to each supply branch pipe 210. The hot water supplied to each heating space is controlled by adjusting the opening degree of the supply branch pipe 210 during an initial setting process. In order to control the flow rate of the bar, a separate device is omitted since it is a general apparatus for solving the calorie imbalance due to the difference in length of the heating coil for each heating space.

온수분배기환수구부(300)는 구획된 각각의 난방공간을 통과하여 환수되는 온수를 다수 개의 환수분기관(310)을 통하여 집수하는 역할을 하는데, 일반적인 온수분배기환수구부(300)와 기본적인 구성은 차이가 없다.The hot water distributor return port unit 300 serves to collect hot water returned through each of the partitioned heating spaces through a plurality of return water distribution engines 310, and the basic configuration of the hot water distributor return port unit 300 is different from the basic configuration. There is no.

난방용 자동온도조절기(22)는 온수분배기환수구부(300)에 설치되는데, 각각의 환수분기관(310)과 연결되어 각 환수분기관(310)의 개도를 조절하는 방식으로 각 난방공간을 순환하는 온수의 유량을 자동으로 제어하는 기능을 수행한다.The thermostat 22 for heating is installed in the hot water distributor return port 300, which is connected to each of the water return pipe 310 to circulate each heating space in a manner to control the opening degree of each water return pipe 310 It automatically controls the flow rate of hot water.

이러한 난방용 자동온도조절기(22)는 일반적으로 전동식 구동기가 구비된 밸브, 밸브제어기, 및 온도설정기로 구성되고, 온도설정기를 통하여 각 난방공간 별로 입력된 설정온도에 따라 밸브제어기가 각 난방공간 별로 측정된 온도를 입력받아 밸브를 개폐하는 구동기를 자동으로 작동시키게 된다.The heating thermostat 22 is generally composed of a valve, a valve controller, and a temperature setter equipped with an electric actuator, and the valve controller measures each heating space according to the set temperature inputted to each heating space through the temperature setter. The actuator that opens and closes the valve automatically receives the input temperature.

즉 설정된 온도에 도달하게 되면 더 이상 온수가 해당 난방공간으로는 순환되지 않도록 해당 난방공간의 밸브를 잠그게 되고, 다시 온도가 설정 온도 이하로 떨어지면 이를 감지하여 해당 난방공간의 밸브를 개방하게 된다.That is, when the set temperature is reached, the valve of the heating space is locked so that no hot water is circulated to the heating space anymore, and when the temperature falls below the setting temperature, the valve is detected and the valve of the heating space is opened.

난방환수관(400)은 온수분배기환수구부(300)에 집수된 온수를 중앙기계실로 재순환하는 환수관 역할을 한다.The heating return pipe 400 serves as a return pipe for recycling the hot water collected in the hot water distributor return port unit 300 to the central machine room.

세대정유량밸브(33)는 난방환수관(400)에 설치되어 미리 설정된 설정유량이 초과하지 않도록 온수의 유량을 제어한다. 세대정유량밸브(33)는 중앙집중 난방방식에서 세대간 유량 불균형을 해결하기 위하여 설치하는 것으로, 차압-유량선도에 따라 밸브 개구 면적을 수동으로 변화시켜 통과하는 유량을 제어하는 수동식과 일정량의 차압변화에서 유량이 일정하게 흐르도록 제어하는 자동식으로 구분된다.The generation constant flow rate valve 33 is installed in the heating return pipe 400 to control the flow rate of the hot water so that the preset set flow rate is not exceeded. The household constant flow rate valve 33 is installed to solve the flow imbalance between generations in the centralized heating system, and is a manual type and a predetermined amount of differential pressure which controls the flow rate by manually changing the valve opening area according to the differential pressure-flow diagram. It is divided into automatic control to keep the flow constant.

차압센서(44)는 난방공급수관(100)과 난방환수관(400)의 압력차를 감지하는 역할을 한다.The differential pressure sensor 44 detects a pressure difference between the heating supply water pipe 100 and the heating return pipe 400.

비례유량제어밸브(55)는 온수분배기환수구부(300) 후단의 일체형 또는 분리 형으로 난방환수관(400)에 설치되며, 차압센서(44)에서 감지되는 압력차를 이용하여 난방공급수관(100)과 난방환수관(400) 사이의 압력차가 설정압력차가 되도록(또는 설정압력차를 초과하지 않도록) 밸브의 개도를 자동조절함으로써 미세유량조절밸브(22)의 통과 유량을 감소시키는 역할을 한다.Proportional flow control valve 55 is installed in the heating return pipe 400 as an integral or separate type of the rear end of the hot water distributor return port 300, using the pressure difference sensed by the differential pressure sensor 44, the heating supply water pipe (100) ) And automatically adjust the opening of the valve so that the pressure difference between the heating and return pipe 400 becomes the set pressure difference (or not exceed the set pressure difference), thereby reducing the flow rate of the micro flow rate control valve 22.

제어부(500)는 차압센서(44)에서 감지된 압력차에 대한 신호를 수신하여 난방공급수관(100)과 난방환수관(400) 사이의 압력차가 설정압력차가 되도록(또는 설정압력차를 초과하지 않도록) 비례유량제어밸브(55)의 개도를 조절하는 제어신호를 발신하는 역할을 하는데, 도3에 도시된 바와 같이 그 내부에는 통신모듈이 구비된 통신부(510)도 포함된다.The control unit 500 receives a signal for the pressure difference detected by the differential pressure sensor 44 so that the pressure difference between the heating supply water pipe 100 and the heating return pipe 400 becomes the set pressure difference (or does not exceed the set pressure difference). The control signal for adjusting the opening degree of the proportional flow control valve 55 is transmitted, and as shown in FIG. 3, a communication unit 510 including a communication module is also included therein.

이러한 제어부(500)는 차압에 관한 신호뿐만 아니라 온도설정기를 통하여 설정된 온도, 난방환수관(400)에 설치된 온도센서(66)의 온도 등에 관한 신호도 수신하며, 통신부(510)의 통신모듈을 통하여 휴대용LCD(77)와도 연결된다.The control unit 500 receives not only a signal related to a differential pressure but also a signal related to a temperature set through a temperature setter, a temperature of a temperature sensor 66 installed in the heating return pipe 400, and the like through a communication module of the communication unit 510. It is also connected to the portable LCD 77.

온도센서(66)는 난방환수관(400)에 설치되어 환수되는 온수의 환수온도를 감지하는데, 제어부(500)는 이를 이용하여 중앙기계실의 운전조건으로부터 추정되는 난방공급수관(100)의 공급수온도와 온도센서(66)에서 감지되는 환수온도의 차이가 커지는 방향으로, 즉, 환수온도를 온도설정기에서 설정하는 온도로 조절될 수 있도록 비례유량제어밸브(55)의 개도를 조절하게 된다.The temperature sensor 66 is installed in the heating return pipe 400 to detect the return temperature of the hot water being returned, the control unit 500 uses this to supply the water supply of the heating supply water pipe 100 estimated from the operating conditions of the central machine room The opening degree of the proportional flow control valve 55 is adjusted so that the difference between the temperature and the return temperature detected by the temperature sensor 66 is increased, that is, the return temperature can be adjusted to the temperature set by the temperature setter.

휴대용LCD(77)는 제어부(500)를 구성하는 통신부(510)의 통신모듈과 유선통신 또는 무선통신의 방법으로 연결되어 각 종 정보를 표시하는 역할을 한다.The portable LCD 77 is connected to the communication module of the communication unit 510 constituting the control unit 500 by wire or wireless communication to display various types of information.

휴대용LCD(77)는 차압센서(44)에서 감지하는 압력차를 도시한 차압그래프, 및 상기 비례유량제어밸브(55)의 개폐 정도를 도시하는 개도그래프를 표시할 수도 있고, 난방용자동온도조절기(22)의 밸브 개폐 여부에 대한 정보를 표시할 수도 있다.The portable LCD 77 may display a differential pressure graph showing a pressure difference sensed by the differential pressure sensor 44, and an opening degree graph showing an opening and closing degree of the proportional flow control valve 55, and a thermostat for heating ( It is also possible to display information on whether or not to open or close the valve of 22).

본 발명에서 상기 온도센서(66), 통신부(510), 온도설정기 및 휴대용 상태표시 LCD는 반드시 필요한 장치가 아니며, 필요시 본 발명에 부가적으로 장착할 수 있다.In the present invention, the temperature sensor 66, the communication unit 510, the temperature setter and the portable status display LCD are not necessarily necessary devices, and may be additionally mounted to the present invention if necessary.

상기한 바와 같이 본 발명의 구체적 실시예를 첨부도면을 참조하여 설명하였으나 본 발명의 보호범위가 반드시 이러한 실시예에 한정되는 것은 아니며 본 발명의 기술적 요지를 변경하지 않는 범위 내에서 다양한 설계변경, 공지기술의 부가나 삭제, 단순한 수치한정 등의 경우에도 본 발명의 보호범위에 속함을 분명히 한다.As described above, specific embodiments of the present invention have been described with reference to the accompanying drawings, but the protection scope of the present invention is not necessarily limited to these embodiments, and various design changes and notifications are made within the scope of not changing the technical gist of the present invention. In the case of addition or deletion of technology, and simple numerical limitations, it is obvious that the scope of the present invention is included.

도1은 기존의 온수분배시스템을 도시한다.1 shows an existing hot water distribution system.

도2는 본 발명에 따른 차압정보를 이용한 비례유량조절시스템을 도시한다.2 shows a proportional flow rate control system using differential pressure information according to the present invention.

도3은 제어부(500)의 구성 및 제어 흐름을 도시하는 개념도이다.3 is a conceptual diagram illustrating a configuration and control flow of the controller 500.

도4는 온수분배기 4구 기준으로 방별 온수코일 개폐여부 및 차압정보를 이용한 비례유량조절시스템 가동여부에 따른 압력차 변화 및 유량변화를 도시하는 개념도이다. 종래의 온수분배시스템(No control의 경우)에서는 방별 온수코일 개폐여부(Case)에 따라 압력차는 크게 변하며, 세대를 통과하는 유량은 세대정유량밸브의 영향으로 일정하게 유지되는 것을 알 수 있다. 발명의 온수분배시스템(Differential pressure control의 경우)에서는 방별 온수코일 개폐여부(Case)에 따라 압력차는 설정 압력차로 일정하게 유지되고, 세대를 통과하는 유량은 개폐조건에 따라 크게 감소하는 것을 알 수 있다.4 is a conceptual diagram showing a pressure difference change and a flow rate change according to whether or not the hot water coil is opened and closed per room and the proportional flow control system using differential pressure information based on four outlets of the hot water distributor. In the conventional hot water distribution system (in the case of No control), the pressure difference is largely changed depending on whether or not the hot water coil is opened and closed (Case) for each room, and it can be seen that the flow rate passing through the generation is kept constant by the generation constant flow valve. In the hot water distribution system of the present invention (differential pressure control), the pressure difference is kept constant by the set pressure difference according to the opening / closing of the hot water coils per room, and the flow rate passing through the generation is greatly reduced according to the opening and closing conditions. .

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

100:난방공급수관100: heating supply water pipe

200:온수분배기공급구부200: hot water distributor supply port

210:공급분기관210: supply branch

300:온수분배기환수구부300: hot water distributor return hole

310:환수분기관310: water return pipe

400:난방환수관400: heating return pipe

500:제어부500: control unit

510:통신부510: communication

11:미세유량조절밸브11: Fine flow control valve

22:난방용자동온도조절기22: heater thermostat

33:세대정유량밸브33: Generation constant flow valve

44:차압센서44: differential pressure sensor

55:비례유량제어밸브55: proportional flow control valve

66:온도센서66: temperature sensor

77:휴대용LCD77: Portable LCD

Claims (4)

중앙집중 난방방식 공동주택의 온수분배시스템에 관한 것으로서,As for the hot water distribution system of the centralized heating type apartment house, 보일러의 온수를 공급하는 난방공급수관(100);Heating supply water pipe 100 for supplying hot water of the boiler; 상기 난방공급수관(100)으로부터 공급받은 온수를 다수 개의 공급분기관(210)을 통하여 구획된 각각의 난방공간으로 분배하는 온수분배기공급구부(200);A hot water distributor supply part 200 for distributing hot water supplied from the heating supply water pipe 100 to each heating space partitioned through a plurality of supply branch pipes 210; 상기 온수분배기공급구부(200)의 상기 공급분기관(210) 각각에 연결되어 상기 공급분기관(210)의 개도를 수동으로 조절하는 다수 개의 미세유량조절밸브(11);A plurality of fine flow rate control valves 11 connected to each of the supply branch pipes 210 of the hot water distributor supply port 200 to manually adjust the opening degree of the supply branch pipe 210; 구획된 각각의 난방공간을 통과하여 환수되는 온수를 다수 개의 환수분기관(310)을 통하여 집수하는 온수분배기환수구부(300);A hot water distributor return port unit 300 for collecting hot water returned through each of the partitioned heating spaces through the plurality of water return pipes 310; 상기 온수분배기환수구부(300)의 상기 환수분기관(310) 각각에 연결되어 상기 환수분기관(310)의 개도를 자동으로 조절하는 밸브가 포함된 다수 개의 난방용 자동온도조절기(22);A plurality of thermostats 22 for heating, including valves connected to each of the water return pipes 310 of the hot water distributor return port 300 to automatically adjust the opening degree of the water return pipe 310; 상기 온수분배기환수구부(300)에 집수된 온수를 중앙기계실로 재순환하는 난방환수관(400);A heating return pipe 400 for recycling hot water collected in the hot water distributor return port unit 300 to a central machine room; 상기 난방환수관(400)에 설치되어 미리 설정된 설정유량이 되도록 온수의 유량을 제어하는 세대정유량밸브(33); A generation constant flow rate valve 33 installed in the heating return pipe 400 to control a flow rate of hot water so as to be set in advance; 상기 난방공급수관(100)과 상기 난방환수관(400)의 압력차를 감지하는 차압센서(44);A differential pressure sensor 44 for detecting a pressure difference between the heating supply water pipe 100 and the heating return pipe 400; 상기 난방환수관(400)에 설치되어 상기 차압센서(44)에서 감지되는 압력차가 설정압력차가 되도록(또는 설정압력차를 초과하지 않도록) 밸브의 개도가 자동조절되는 비례유량제어밸브(55); 및,A proportional flow control valve 55 installed in the heating return pipe 400 and configured to automatically adjust the opening degree of the valve so that the pressure difference sensed by the differential pressure sensor 44 becomes a set pressure difference (or does not exceed the set pressure difference); And, 상기 차압센서(44)에서 감지된 압력차에 대한 신호를 수신하여 난방공급수관(100)과 난방환수관(400) 사이의 압력차가 설정압력차가 되도록(또는 설정압력차를 초과하지 않도록) 상기 비례유량제어밸브(55)의 개도를 조절하는 제어신호를 발신하는 제어부(500);The proportion of the pressure difference detected by the differential pressure sensor 44 is received so that the pressure difference between the heating supply water pipe 100 and the heating return pipe 400 becomes the set pressure difference (or does not exceed the set pressure difference). Control unit 500 for transmitting a control signal for adjusting the opening degree of the flow control valve 55; 를 포함하여 구성되는 것을 특징으로 하는 차압정보를 이용한 비례유량조절시스템.Proportional flow rate control system using the differential pressure information, characterized in that configured to include. 제1항에서,In claim 1, 상기 비례유량제어밸브(55)는 온수분배기환수구부(300)에 일체형으로 삽입되거나, 분리되어 세대정유량밸브(33)의 위치에 상관없이 온수분배기환수구부(300) 후단의 온수 통로 상에 위치하는 것을 특징으로 하는 차압정보를 이용한 비례유량조절시스템.The proportional flow control valve 55 is integrally inserted into the hot water distributor return port 300 or separated and positioned on the hot water passage after the hot water distributor return port 300 regardless of the position of the generation constant flow rate valve 33. Proportional flow rate control system using the differential pressure information, characterized in that. 제1항에서,In claim 1, 상기 난방환수관(400)에 설치되어 환수되는 온수의 환수온도를 감지하는 온도센서(66);A temperature sensor (66) installed at the heating return pipe (400) for detecting a return temperature of hot water being returned; 가 더 포함되고,More is included, 상기 제어부(500)는 보일러의 운전조건으로부터 추정되는 상기 난방공급수 관(100)의 공급수온도와 상기 온도센서(66)에서 감지되는 환수온도의 차이가 커지는 방향으로, 즉, 환수온도를 온도설정기에서 설정하는 온도로 조절될 수 있도록 상기 비례유량제어밸브(55)의 개도를 조절하는 것을 특징으로 하는 차압정보를 이용한 비례유량조절시스템.The control unit 500 is a direction in which the difference between the supply water temperature of the heating water supply pipe 100 estimated from the operating conditions of the boiler and the return temperature detected by the temperature sensor 66 increases, that is, the return temperature Proportional flow rate control system using the differential pressure information, characterized in that for adjusting the opening degree of the proportional flow control valve 55 so that it can be adjusted to the temperature set by the setter. 제1항 또는 제2항에서,The method of claim 1 or 2, 상기 제어부(500)를 구성하는 통신부(510)의 통신모듈과 유선 또는 무선통신의 방법으로 연결되는 휴대용LCD(77);A portable LCD 77 connected to the communication module of the communication unit 510 constituting the control unit 500 by wire or wireless communication; 가 더 포함되고,More is included, 상기 휴대용LCD(77)는 상기 차압센서(44)에서 감지하는 압력차를 도시한 차압그래프, 및 상기 비례유량제어밸브(55)의 개폐 정도를 도시하는 개도그래프를 표시하는 것을 특징으로 하는 차압정보를 이용한 비례유량조절시스템.The portable LCD 77 displays a differential pressure graph showing a pressure difference sensed by the differential pressure sensor 44 and an opening degree graph showing an opening and closing degree of the proportional flow control valve 55. Proportional flow control system using.
KR1020090023970A 2009-03-20 2009-03-20 Proportional Flow-rate Control System using Pressure Difference KR101040692B1 (en)

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US10465932B2 (en) 2015-09-09 2019-11-05 Fimcim S.P.A Conditioning and/or heating plant and process of controlling the same plant
CN113819505A (en) * 2021-08-25 2021-12-21 河北建筑工程学院 Control system and control method for solving hydraulic imbalance of heat supply pipe network
CN114110712A (en) * 2021-12-13 2022-03-01 北京展拓置业有限公司 Chamber temperature control adjusting device and control system based on water mixing principle
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CN103851674A (en) * 2012-12-06 2014-06-11 赵连臣 Heating station system device
CN103851674B (en) * 2012-12-06 2016-06-29 赵连臣 A kind of heat station system device
US10443862B2 (en) 2015-09-09 2019-10-15 Fimcim S.P.A Conditioning and/or heating plant and process of controlling the same plant
US10465932B2 (en) 2015-09-09 2019-11-05 Fimcim S.P.A Conditioning and/or heating plant and process of controlling the same plant
CN106839083A (en) * 2017-01-09 2017-06-13 华北电力大学（保定） A kind of intelligence heat management system and its management method
KR102472555B1 (en) * 2021-08-06 2022-12-01 주식회사 한 에너지 시스템 Heating System Using Pressure Independent Smart Valve
CN113819505A (en) * 2021-08-25 2021-12-21 河北建筑工程学院 Control system and control method for solving hydraulic imbalance of heat supply pipe network
CN114110712A (en) * 2021-12-13 2022-03-01 北京展拓置业有限公司 Chamber temperature control adjusting device and control system based on water mixing principle

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