KR100660565B1 - Condensing boiler and method for controlling heating of boiler - Google Patents

Condensing boiler and method for controlling heating of boiler Download PDF

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KR100660565B1
KR100660565B1 KR1020060020807A KR20060020807A KR100660565B1 KR 100660565 B1 KR100660565 B1 KR 100660565B1 KR 1020060020807 A KR1020060020807 A KR 1020060020807A KR 20060020807 A KR20060020807 A KR 20060020807A KR 100660565 B1 KR100660565 B1 KR 100660565B1
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South Korea
Prior art keywords
heat exchanger
temperature
latent heat
heating water
sensible heat
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KR1020060020807A
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Korean (ko)
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민태식
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주식회사 경동나비엔
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Priority to KR1020060020807A priority Critical patent/KR100660565B1/en
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Publication of KR100660565B1 publication Critical patent/KR100660565B1/en
Priority to PCT/KR2006/005858 priority patent/WO2007102653A1/en

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    • 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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • 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
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/41—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
    • 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
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F24H8/003—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation having means for moistening the combustion air with condensate from the combustion gases
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/0036—Dispositions against condensation of combustion products
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

A condensing boiler and a method for controlling the condensing boiler are provided to control the temperature of heating water supplied to a sensible heat exchanger to a temperature at which condensate is not generated by regulating the opening degree of a mixing valve. In a condensing boiler, heating water passing through a latent heat exchanger(11) and a sensible heat exchanger(12) is heated by a burner. A pump(20) circulates the heated heating water. Temperature sensors are installed on discharge sides of the latent heat exchanger and the sensible heat exchanger. A communication pipe is installed between a supply pipe of the pump and a discharge pipe of the latent heat exchanger. A mixing valve(30) is provided in the communication pipe to return some of the heating water passed through the pump via the sensible heat exchanger to the discharge pipe of the latent heat exchanger.

Description

콘덴싱 보일러 및 그 제어방법{condensing boiler and Method for controlling heating of boiler}Condensing boiler and method for controlling heating of boiler

도 1은 종래의 콘덴싱 보일러를 보인 개략도,1 is a schematic view showing a conventional condensing boiler,

도 2는 본 발명에 따른 콘덴실 보일러의 구조 및 제어방법를 보인 개략도.Figure 2 is a schematic diagram showing the structure and control method of the condensing boiler according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 열교환기 11: 잠열열교환기10: heat exchanger 11: latent heat exchanger

12: 현열열교환기 20: 펌프12: sensible heat exchanger 20: pump

30: 믹싱밸브 40: 난방공급관30: mixing valve 40: heating supply pipe

50: 난방회수관 60: 제어부50: heating recovery pipe 60: control unit

70: PID T1,T2,T3: 온도센서70: PID T1, T2, T3: Temperature sensor

본 발명은 콘덴싱 보일러 및 그 제어방법에 관한 것으로, 더 상세히는 열교환기의 구조를 개선하여 잠열 및 현열열교환기를 통과하는 유체의 온도 차이를 줄 여 응축수의 발생을 최소화하기 위한 콘덴싱 보일러 및 그 제어방법에 관한 것이다.The present invention relates to a condensing boiler and a control method thereof, and more particularly to a condensing boiler and a control method for minimizing the generation of condensate by reducing the temperature difference of the fluid passing through the latent heat and sensible heat exchanger by improving the structure of the heat exchanger It is about.

도 1에 도시된 바와 같이, 종래의 콘덴싱 보일러는 공기를 강제 송풍하기 위한 송풍기(1)와, 이 송풍기(1)를 통해 공급되는 공기를 통해 연료를 연소시키는 버너(2)와, 이 버너(2)의 연소실열에 의해 난방수의 열교환이 이루어지는 열교환기(3)와, 이 열교환기(3)를 지난 폐가스를 외부로 배출시키기 위한 배기덕트(4)로 이루어진다.As shown in FIG. 1, a conventional condensing boiler includes a blower 1 for forcibly blowing air, a burner 2 for burning fuel through air supplied through the blower 1, and a burner ( The heat exchanger 3 which heat-exchanges heating water by the combustion chamber heat of 2), and the exhaust duct 4 for discharging the waste gas which passed this heat exchanger 3 to the outside.

여기서, 열교환기(3)는 버너의 직하부에 순착적으로 배치되는 현열열교환기(5) 및 잠열열교환기(6)로 이루어진다.Here, the heat exchanger (3) consists of a sensible heat exchanger (5) and a latent heat exchanger (6) which are arranged in a direct portion below the burner.

상기 현열열교환기(5)는 열교환 효율을 높이기 위해 동파이프와 다수의 열전도핀을 용접하여 제작되며, 상기 잠열열교환기(6)는 응축수에 의한 부식을 방지하기 위해 스텐인레스 재질로 된 열교환기가 구비된다.The sensible heat exchanger (5) is manufactured by welding a copper pipe and a plurality of heat conduction fins to increase heat exchange efficiency, and the latent heat exchanger (6) is provided with a heat exchanger made of stainless steel to prevent corrosion by condensate. .

이러한 잠열열교환기(6)에는 실내에서 열교환작용을 마친 차가운 난방수가 유입되며, 상기 현열열교환기(5)에서는 잠열열교환기(6)를 지나 예열된 난방수가 유입되고, 잠열열교환기(6)를 거쳐 현열열교환기(5)에 유입되는 난방수의 온도가 낮을 경우 현열열교환기(5)에 응축수가 발생되어 부식에 따른 사용수명이 단축되는 문제점이 있었다.The latent heat exchanger (6) is introduced into the cold heating water after the heat exchange operation in the room, the sensible heat exchanger (5) is introduced into the preheated heat exchanger through the latent heat exchanger (6), the latent heat exchanger (6) When the temperature of the heating water flowing into the sensible heat exchanger (5) is low, condensed water is generated in the sensible heat exchanger (5) has a problem of shortening the service life due to corrosion.

따라서 현열열교환기에 낮은 난방수 온도가 유입되지 않게 하기 위해 버너의 열량을 높여 난방수 온도를 제어함으로 난방수가 낮은 온도로 회수되지 않아 난방 효율을 극대화할 수 없는 문제점이 있었다.Therefore, there is a problem in that the heating water is not recovered to a low temperature by controlling the heating water temperature by increasing the heat quantity of the burner so that the low heating water temperature does not flow into the sensible heat exchanger, thereby maximizing the heating efficiency.

상기 문제점을 해결하기 위한 본 발명은 콘덴싱 보일러의 잠열/현열열교환기 사이 및 난방공급관 사이에 믹싱밸브를 설치하여, 상기 잠열열교환기의 토출측에 감지된 온도에 따라 제어부에서 비례제어방식으로 믹싱밸브의 개폐량을 조절하여 상기 현열열교환기측으로 공급되는 난방수 온도를 응축수가 발생되는 않는 온도로 공급함으로써, 현열열교환기의 사용수명을 연장하기 위한 목적이 있다.The present invention for solving the above problems is to install a mixing valve between the latent heat / sensible heat exchanger and the heating supply pipe of the condensing boiler, according to the temperature sensed on the discharge side of the latent heat exchanger of the mixing valve in a proportional control method It is an object to extend the service life of the sensible heat exchanger by controlling the opening and closing amount to supply the heating water temperature supplied to the sensible heat exchanger side to a temperature at which condensate is not generated.

이로 인해 난방수의 온도를 낮게 회수되도록 하여 난방효율을 극대화할 수 있는 또 다른 목적이 있다.Therefore, there is another purpose to maximize the heating efficiency by allowing the temperature of the heating water to be recovered low.

상기 목적을 달성하기 위한 본 발명은 버너에 의해 열교환기를 통과하는 난방수가 가열하며, 가열된 난방수를 순환시키는 펌프로 이루어진 콘덴싱 보일러에 있어서, 상기 열교환기는 잠열열교환기와 현열열교환기의 토출관측에 온도센서가 설치되며, 상기 펌프의 난방공급관과 잠열열교환기의 토출관 사이에 연통관이 설치되며, 상기 연통관에는 현열열교환기를 거쳐 상기 펌프를 통과한 가열된 난방수의 일부를 비례제어방식으로 잠열열교환기의 토출관으로 리턴시키는 믹싱밸브로 구성된다.The present invention for achieving the above object is a condensing boiler consisting of a pump for heating the heating water passing through the heat exchanger by a burner, circulating the heated heating water, the heat exchanger is a temperature on the discharge tube side of the latent heat exchanger and sensible heat exchanger A sensor is installed, and a communication tube is installed between the heating supply pipe of the pump and the discharge pipe of the latent heat exchanger, and the communication tube has a proportional control method for a portion of the heated heating water passing through the pump through a sensible heat exchanger. It is composed of a mixing valve to return to the discharge pipe of.

그리고, 본 발명은 콘덴싱 보일러에 있어서, 난방수가 적정온도 이하로 떨어 지면, 제어부에서 상기 펌프를 동작시켜 열교환작용을 마친 차가운 유체를 순환시키면, 상기 잠열열교환기와 현열열교환기를 통과하면서 버너에 의해 일정한 온도로 가열되는데, 상기 잠열/현열열교환기 토출측을 통과하는 난방수의 온도를 온도센서가 감지하고, 이 신호를 전달받아 설정온도와 현재 난방수 온도를 PID (proprotional-plus-inrergral-plus-derivative)에 의해 데이터 값을 연산 및 비교처리 한 후, 제어부에서 상기 믹싱밸브에 신호를 전달하면, 상기 믹싱밸브에서는 현열열교환기를 거쳐 상기 펌프를 통과한 유체의 일부를 상기 잠열열교환기의 토출측으로 리턴시켜 상기 잠열열교환기의 토출관에서 섞여진 유체는 응축수가 발생되지 않는 최적화된 온도로 현열열교환기 측으로 공급하는 것을 특징으로 한다.In the condensing boiler, when the heating water falls below an appropriate temperature, the controller operates the pump and circulates a cold fluid that has completed the heat exchange operation, and passes through the latent heat exchanger and the sensible heat exchanger, and then, a constant temperature by the burner. The temperature sensor detects the temperature of the heating water passing through the latent heat / sensible heat exchanger discharge side, and receives the signal to determine the set temperature and the current heating water temperature as PID (proprotional-plus-inrergral-plus-derivative). After calculating and comparing the data values by the controller, when the control unit transmits a signal to the mixing valve, the mixing valve returns a part of the fluid passing through the pump through the sensible heat exchanger to the discharge side of the latent heat exchanger. The fluid mixed in the discharge tube of the latent heat exchanger is sensible heat exchanger at an optimized temperature at which no condensate is generated. The supply to be characterized.

상기 믹싱밸브는 잠열열교환기와 현열열교환기의 온도센서를 제어부에서 감지하여 비례제어방식으로 콘트롤하는 것을 특징으로 한다.The mixing valve is characterized in that the temperature sensor of the latent heat exchanger and the sensible heat exchanger is sensed by the control unit and controlled in a proportional control method.

이하, 본 발명에 따른 바람직한 실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 콘덴실 보일러의 구조 및 제어방법을 보인 개략도이다.2 is a schematic view showing the structure and control method of the condensing boiler according to the present invention.

도 2에 도시된 바와 같이, 본 발명은 버너에 의해 열교환기(10)를 통과하는 난방수가 가열하며, 가열된 난방수를 순환시키는 펌프(20)가 구비되며, 그리고 콘덴싱 보일러를 비례제어하는 제어부(60)로 구성된다.As shown in FIG. 2, the present invention includes a control unit for heating the water passing through the heat exchanger 10 by a burner, a pump 20 circulating the heated heating water, and proportionally controlling the condensing boiler. It consists of 60.

상기 열교환기(10)는 잠열열교환기(11)와 현열열교환기(12)로 이루어지며 통상적인 구조를 갖는다.The heat exchanger 10 consists of a latent heat exchanger 11 and a sensible heat exchanger 12 and has a conventional structure.

그리고 상기 잠열열교환기(11)와 현열열교환기(12)의 토출관(13)측에 각각의 온도센서가 설치되고, 상기 잠열열교환기(11)에는 난방회수관(50)이 연결되며, 이 난방회수관(50)에는 온도센서(T1)가 설치된다.And each of the temperature sensor is installed on the discharge tube 13 side of the latent heat exchanger 11 and the sensible heat exchanger 12, the heating heat recovery pipe 50 is connected to the latent heat exchanger 11, The heating sensor 50 is provided with a temperature sensor T1.

그리고 상기 현열열교환기(12)의 토출관(13)측에는 펌프(20)가 설치되며, 상기 펌프(20)의 토출측에는 난방수를 압송하는 난방공급관(40)이 설치된다.And the pump 20 is installed on the discharge tube 13 side of the sensible heat exchanger 12, the heating supply pipe 40 for pumping the heating water is installed on the discharge side of the pump 20.

상기 펌프(20)의 난방공급관(40)과 잠열열교환기(11)의 토출관(13) 사이에 연통관(31)이 설치된다.A communication tube 31 is installed between the heating supply pipe 40 of the pump 20 and the discharge pipe 13 of the latent heat exchanger 11.

상기 연통관(31)과 난방공급관(40) 사이에는 현열열교환기(12)를 거쳐 상기 펌프(20)에 압송되는 난방수의 일부를 잠열열교환기(11)의 토출관(13)측으로 압송하고, 나머지는 난방공급관(40)을 공급하는 믹싱밸브(30)가 설치된다.Between the communicating tube 31 and the heating supply pipe 40, a portion of the heating water pumped to the pump 20 via the sensible heat exchanger 12 is pumped to the discharge tube 13 side of the latent heat exchanger 11, The rest of the mixing valve 30 for supplying the heating supply pipe 40 is installed.

상기 믹싱밸브(30)는 스탱핑 모터(stepping moter) 및 DC모터,AC모터 등에 의해 구동되며, 상기 펌프(20)의 동작에 의해 압송되는 난방수가 밸브의 개폐에 의해 잠열열교환기(11)의 토출측으로 일정량의 가열된 난방수가 공급하는 것이다.The mixing valve 30 is driven by a stepping motor, a DC motor, an AC motor, and the like, and the heating water pumped by the operation of the pump 20 is applied to the latent heat exchanger 11 by opening and closing the valve. A certain amount of heated heating water is supplied to the discharge side.

상기에서 보는 바와 같이, 본 발명은 회수되는 난방수가 난방회수관(50)측의 온도센서(T1)에 의해 설정온도 이하로 떨어지면, 이를 감지한 제어부(60)에서 상기 펌프(20)를 동작시켜 열교환작용을 마친 차가운 유체를 순환시키게 되고, 이렇게 순환되는 난방수는 상기 잠열열교환기(11)와 현열열교환기(12)를 통과하면서 버너에 의해 일정한 온도로 가열되는데, 상기 잠열열교환기(11)와 현열열교환기(12)의 토출관측을 통과하는 난방수의 온도센서(T2,T3)에서 신호를 전달받아 설정온도와 난방수 온도(T2,T3)를 비교하여 프로그램으로 미리 결정된 PID계수를 통해 연산 및 비교처리를 한 후, 제어부(60)에서 상기 믹싱밸브(30)에 신호를 전달하면, 상기 믹싱밸브(30)에서는 현열열교환기(12)를 거쳐 상기 펌프(20)를 통과한 난방수의 일부를 상기 잠열열교환기(11)의 토출측으로 리턴시켜 상기 잠열열교환기(11)의 토출관(13)에서 섞여진 난방수는 응축수가 발생되지 않는 최적화된 온도로 현열열교환기(12) 측으로 공급되도록 하는 것이다.As can be seen from the above, the present invention is to operate the pump 20 in the control unit 60 that detects this when the recovered water falls below the set temperature by the temperature sensor (T1) of the heating recovery pipe 50 side The circulating coolant is circulated, and the circulating heating water is heated to a constant temperature by a burner while passing through the latent heat exchanger 11 and the sensible heat exchanger 12, and the latent heat exchanger 11. And the signal received from the temperature sensor (T2, T3) of the heating water passing through the discharge tube of the sensible heat exchanger (12) and compares the set temperature with the heating water temperature (T2, T3) through a PID coefficient predetermined by the program. After the calculation and comparison process, when the control unit 60 transmits a signal to the mixing valve 30, the mixing valve 30 passes through the sensible heat exchanger 12 to the heating water passing through the pump 20 Part of the discharge of the latent heat exchanger (11) By returning to the side, the heating water mixed in the discharge tube 13 of the latent heat exchanger 11 is supplied to the sensible heat exchanger 12 side at an optimized temperature at which no condensate is generated.

부언하면, 상기 펌프(20)의 동작에 의해 난방수가 순환되는데, 상기 잠열열교환기(11)의 토출측에 설치된 온도센서에 의해 현열열교환기(12)로 유입되는 난방수 온도 및 상기 현열열교환기(12)의 토츨측에 설치된 온도센서(T2)에 의해 난방공급관(40)으로 공급되는 난방수 온도를 감지하고, 이렇게 온도센서(T2)에 의해 감지된 난방수의 온도 차이에 대한 데이터값을 PID 방식으로 처리하여 상기 제어부(60)에서 믹싱밸브(30)의 개폐량을 비례제어가능한 것이다.In other words, the heating water is circulated by the operation of the pump 20, and the heating water temperature and the sensible heat exchanger introduced into the sensible heat exchanger 12 by a temperature sensor installed on the discharge side of the latent heat exchanger 11 ( 12) detects the temperature of the heating water supplied to the heating supply pipe 40 by the temperature sensor T2 installed on the torch side, and converts the data value of the temperature difference of the heating water detected by the temperature sensor T2 into PID. By controlling in a manner that the control unit 60 is proportional control of the opening and closing amount of the mixing valve (30).

예를 들어 구체적으로 설명하면, 상기 현열열교환기(12)에 응축수가 발생되지 않는 적정온도를 45도 라하고, 난방회수관(50)측 온도센서 T1 라 하고, 잠열열교환기(11)의 토출측 온도센서 T2 라 하고, 현열열교환기(12)의 토출측 온도센서 T3 라 하면, 먼저 제어부(60)에서 T3의 온도를 감지하여 설정온도 이하로 떨어지며, 버너와 펌프(20)를 동작시키면 난방수가 순환되면서 상기 잠열열교환기(11)와 현열열교환기(12)로 거쳐 난방수가 버너에 의해 가열되는 것이다.For example, in detail, the appropriate temperature at which the condensed water is not generated in the sensible heat exchanger 12 is 45 degrees, and the temperature sensor T1 of the heating recovery pipe 50 is called the discharge side of the latent heat exchanger 11. If the temperature sensor T2 and the discharge-side temperature sensor T3 of the sensible heat exchanger 12, first, the control unit 60 senses the temperature of T3 and falls below the set temperature. When the burner and the pump 20 are operated, the heating water circulates. The heating water is heated by the burner while passing through the latent heat exchanger 11 and the sensible heat exchanger 12.

이때, 상기 잠열열교환기(11)의 입구측을 난방수의 온도를 온도센서(T1)가 감지하고, 상기 현열열교환기(12)의 입구측 난방수 온도를 온도센서(T2)가 감지되며, 상기 현열열교환기(12)의 토출측 난방수의 온도를 온도센서(T3)가 감지된다. 여기서 온도센서(T1)의 온도가 45도 이하로 감지되며, 믹싱밸브(30)를 제어하기 시작하게 되고, 온도센서(T2)의 온도를 감지하여 목표온도를 55도 제어하기 위해 온도센서(T3)의 온도를 참조하여 PID(70)방식으로 연산처리하여 제어부에 전달한다. 여기서 목표온도 55도는 버너의 특성에 따라 그 온도를 달리할 수 있다. At this time, the temperature sensor T1 detects the temperature of the heating water at the inlet side of the latent heat exchanger 11, and the temperature sensor T2 detects the inlet heating water temperature of the sensible heat exchanger 12. The temperature sensor T3 detects the temperature of the discharge side heating water of the sensible heat exchanger 12. Here, the temperature of the temperature sensor T1 is sensed to be 45 degrees or less, and starts to control the mixing valve 30, and to sense the temperature of the temperature sensor T2 to control the target temperature by 55 degrees. With reference to the temperature of the) is processed by the PID (70) method and delivered to the controller. Here, the target temperature of 55 degrees may vary in temperature depending on the characteristics of the burner.

이와 같이 PID(70)방식으로 연산처리하여 제어부(60)에 전달하면, 상기 제어부(60)에서 믹싱밸브(30)의 개폐하여 일정한 난방수가 연통관(31)을 통해 상기 잠열열교환기(11)의 토출측에 공급되는데, 여기서 상기 현열열교환기(12)의 토출측 T3의 온도와 잠열열교환기(11)의 토출측 T2의 온도를 갖는 난방수가 혼합되면서 상기 잠열열교환기(11)의 토출측에 적정온도(45도)를 갖는 난방수가 현열열교환기(12)로 공급하는 것이다.In this way, the PID 70 is processed and transferred to the control unit 60. The control unit 60 opens and closes the mixing valve 30, and the constant heating water of the latent heat exchanger 11 is transferred through the communication tube 31. It is supplied to the discharge side, wherein the heating water having a temperature of the discharge side T3 of the sensible heat exchanger 12 and the temperature of the discharge side T2 of the latent heat exchanger 11 is mixed with a proper temperature (45) on the discharge side of the latent heat exchanger (11). Heating water having FIG. 7) is supplied to the sensible heat exchanger 12.

그리고 난방수의 나머지는 상기 펌프(20)에 의해 난방공급관(40)을 통해 순환되면서 상기 난방회수관(50)을 따라 잠열열교환기(11)로 유입되는데, 이때 난방회수관(50)을 통과하는 난방수는 온도센서(T1)에 의해 일정한 온도이상 상승됨 감지하고, 이렇게 상승된 난방수는 다시 상기 잠열열교환기(11)를 통과하면서 난방수의 온도를 온도센서 T2가 감지하고, 이를 감지한 제어부(60)에서 믹싱밸브(30)를 개폐하는데, 여기서 난방수가 순환되면서 T2의 온도가 상승됨에 따라 상기 믹싱밸브(30)는 처음 개폐된 각도보다 적게 개폐되는 것이다.And the rest of the heating water is circulated through the heating supply pipe 40 by the pump 20 is introduced into the latent heat exchanger 11 along the heating recovery pipe 50, at this time passes through the heating recovery pipe 50 The heating water is sensed to be raised above a certain temperature by the temperature sensor (T1), and the heated water is passed through the latent heat exchanger (11) again while the temperature sensor T2 detects the temperature of the heating water and detects this. The control unit 60 opens and closes the mixing valve 30. Here, as the temperature of T2 is increased while the heating water is circulated, the mixing valve 30 is opened and closed less than the first opening and closing angle.

이어서 상기 믹싱밸브(30)의 각도에 따라 난방수의 유량이 조절되어 상기 현열열교환기(12)의 토출측 T3의 온도와 잠열열교환기(11)의 토출측 T2의 온도를 갖는 난방수가 혼합되면서 상기 잠열열교환기(11)의 토출측을 통해 난방수가 적정온도로 현열열교환기(12)로 공급되는 것이다.Subsequently, the flow rate of the heating water is adjusted according to the angle of the mixing valve 30 so that the latent heat is mixed while the heating water having the temperature of the discharge side T3 of the sensible heat exchanger 12 and the temperature of the discharge side T2 of the latent heat exchanger 11 is mixed. The heating water is supplied to the sensible heat exchanger 12 at an appropriate temperature through the discharge side of the heat exchanger 11.

이와 같이, 상기 콘덴싱 보일러의 구동에 의한 상기 잠열열교환기(11)와 현열교환기를 통과하는 난방수의 온도를 감지하여 상기 제어부(60)에서 믹싱밸브(30)의 개폐량에 따른 상기 잠열열교환기(11)의 토출측으로 공급되는 난방수를 비례제어가능한 것이다.As such, the temperature of the heating water passing through the latent heat exchanger 11 and the sensible heat exchanger by driving the condensing boiler is sensed, and the latent heat exchanger according to the opening and closing amount of the mixing valve 30 in the controller 60. It is possible to proportionally control the heating water supplied to the discharge side of (11).

이어서, 상기 잠열열교환기(11)의 토출측 T2 온도가 응축수의 발생되지 않는 적정온도에 도달하면, 상기 제어부(60)에서 믹싱밸브(30)의 동작을 정지시키는 것이다.Subsequently, when the discharge side T2 temperature of the latent heat exchanger 11 reaches a proper temperature at which no condensate is generated, the control unit 60 stops the operation of the mixing valve 30.

상기의 구조로된 콘덴실 보일러 및 그 제조방법에 의해 상기 잠열열교환기(11)측으로 낮은 온도로 난방수가 회수되더라도 상기 현열열교환기(12)에서 응축수의 발생을 최소화하여 사용수명이 연장된다. 이와 같이 회수되는 난방수 온도를 최대한 낮은 온도로 확보할 수 있어 난방효율을 극대화할 수 있는 것이다.Even when the heating water is recovered at a low temperature toward the latent heat exchanger 11 by the condensing boiler and the manufacturing method having the above structure, the service life is extended by minimizing the generation of condensed water in the sensible heat exchanger 12. As such, the recovered heating water temperature can be secured at the lowest possible temperature, thereby maximizing the heating efficiency.

이상과 같이 본 발명의 실시예에 대하여 상세히 설명하였으나, 본 발명의 권리범위는 이에 한정되지 않으며, 본 발명의 실시예와 실질적으로 균등의 범위에 있는 것까지 본 발명의 권리범위가 미친다.As described above, embodiments of the present invention have been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiments of the present invention.

따라서, 본 발명은 콘덴싱 보일러의 잠열/현열열교환기 사이 및 현열열교환기의 토출측에 믹싱밸브를 설치하여, 상기 잠열열교환기의 토출측에 감지된 온도에 따라 제어부에서 비례제어방식으로 믹싱밸브의 개폐량을 조절하여 상기 현열열교환기측으로 공급되는 난방수 온도를 응축수가 발생되는 않는 온도로 공급함으로써, 현열열교환기의 부식에 의한 사용수명을 연장할 있는 효과가 있다. 이로 인해 회수되는 난방수의 온도를 최대한 확보하여 난방효율을 극대화할 수 있는 효과가 있다.Therefore, the present invention is to install a mixing valve between the latent heat / sensible heat exchanger of the condensing boiler and the discharge side of the sensible heat exchanger, the opening and closing amount of the mixing valve in a proportional control method in the control unit according to the temperature sensed on the discharge side of the latent heat exchanger By supplying the heating water temperature supplied to the sensible heat exchanger side to a temperature at which no condensate is generated, there is an effect of extending the service life due to corrosion of the sensible heat exchanger. This ensures the maximum temperature of the recovered heating water has the effect of maximizing the heating efficiency.

Claims (3)

버너에 의해 잠열열교환기와 현열열교환기를 통과하는 난방수가 가열하며, 가열된 난방수를 순환시키는 펌프로 이루어진 콘덴싱 보일러에 있어서,In the condensing boiler consisting of a pump for heating the heating water passing through the latent heat exchanger and sensible heat exchanger by a burner, circulating the heated heating water, 상기 잠열열교환기와 현열열교환기의 토출관측에 온도센서가 설치되며, 상기 펌프의 공급관과 잠열열교환기의 토출관 사이에 연통관이 설치되며, 상기 연통관에는 현열열교환기를 거쳐 상기 펌프를 통과한 가열된 난방수의 일부를 잠열열교환기의 토출관으로 리턴시키는 믹싱밸브로 구성된 것을 특징으로 하는 콘덴싱 보일러.A temperature sensor is installed on the discharge tube side of the latent heat exchanger and the sensible heat exchanger, and a communication tube is installed between the supply pipe of the pump and the discharge tube of the latent heat exchanger, and the communication tube is heated by passing the pump through the sensible heat exchanger. A condensing boiler, characterized in that consisting of a mixing valve for returning a portion of the water to the discharge tube of the latent heat exchanger. 콘덴싱 보일러에 있어서,In the condensing boiler, 난방수가 적정온도 이하로 떨어지면, 제어부에서 상기 펌프를 동작시켜 열교환작용을 마친 차가운 유체를 순환시키면, 상기 잠열열교환기와 현열열교환기를 통과하면서 버너에 의해 일정한 온도로 가열되는데, 상기 잠열/현열열교환기 토출측을 통과하는 난방수의 온도를 온도센서가 감지하고, 이 신호를 전달받아 설정온도와 현재 난방수 온도를 PID (proprotional-plus-inrergral-plus-derivative)에 의해 데이터 값을 연산 및 비교처리 한 후, 제어부에서 상기 믹싱밸브에 신호를 전달하면, 상기 믹싱밸브에서는 현열열교환기를 거쳐 상기 펌프를 통과한 유체의 일부를 상기 잠열열교환기의 토출측으로 리턴시켜 상기 잠열열교환기의 토출관에서 섞여진 유체는 응축수가 발생되지 않는 최적화된 온도로 현열열교환기 측으로 공급하 는 것을 특징으로 하는 콘덴싱 보일러 제어방법.When the heating water falls below the proper temperature, the controller operates the pump to circulate the cold fluid which has completed the heat exchange operation, and is heated to a constant temperature by a burner while passing through the latent heat exchanger and the sensible heat exchanger. The temperature sensor detects the temperature of the heating water passing through and calculates and compares the data value by PID (proprotional-plus-inrergral-plus-derivative) after receiving this signal. When the control unit transmits a signal to the mixing valve, the mixing valve returns a part of the fluid passing through the sensible heat exchanger to the discharge side of the latent heat exchanger so that the fluid mixed in the discharge tube of the latent heat exchanger is Condensing characterized in that the supply of condensed water to the sensible heat exchanger at an optimized temperature Say control method. 제2항에 있어서,The method of claim 2, 상기 잠열열교환기와 현열열교환기의 온도에 따라 제어부에서 믹싱밸브의 개폐량을 조절하여 난방수 가열시 비례제어방식으로 제어하는 것을 특징으로 하는 콘덴싱 보일러 제어방법.The control method of the condensing boiler, characterized in that to control the proportional control method when heating the heating water by controlling the opening and closing amount of the mixing valve in the control unit according to the temperature of the latent heat exchanger and sensible heat exchanger.
KR1020060020807A 2006-03-06 2006-03-06 Condensing boiler and method for controlling heating of boiler KR100660565B1 (en)

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WO2009119970A1 (en) * 2008-03-27 2009-10-01 Kyungdong Navien Co., Ltd. Boiler suppliable heating-water and hot-water simultaneously
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KR101209962B1 (en) * 2010-12-03 2012-12-07 린나이코리아 주식회사 Flow control method for preventing brain for circular pump in boiler
KR101592265B1 (en) 2014-05-30 2016-02-05 린나이코리아 주식회사 Driving device and method a non-condensing of a boiler condensing
KR101592264B1 (en) 2014-05-30 2016-02-05 린나이코리아 주식회사 Driving method a non-condensing of a boiler condensing
CN109253551A (en) * 2018-09-25 2019-01-22 西北工业大学 A kind of auto temperature controlled system based on feedback regulation

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WO2009119970A1 (en) * 2008-03-27 2009-10-01 Kyungdong Navien Co., Ltd. Boiler suppliable heating-water and hot-water simultaneously
AU2009229699B2 (en) * 2008-03-27 2012-08-23 Kyungdong Navien Co., Ltd. Boiler suppliable heating-water and hot-water simultaneously
KR100999996B1 (en) * 2008-08-27 2010-12-15 주식회사 경동네트웍 High efficiency hot-water supplyer
KR101209962B1 (en) * 2010-12-03 2012-12-07 린나이코리아 주식회사 Flow control method for preventing brain for circular pump in boiler
KR101592265B1 (en) 2014-05-30 2016-02-05 린나이코리아 주식회사 Driving device and method a non-condensing of a boiler condensing
KR101592264B1 (en) 2014-05-30 2016-02-05 린나이코리아 주식회사 Driving method a non-condensing of a boiler condensing
CN109253551A (en) * 2018-09-25 2019-01-22 西北工业大学 A kind of auto temperature controlled system based on feedback regulation

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