KR100905656B1 - Sequential differential temperature control device and method of solar system - Google Patents

Sequential differential temperature control device and method of solar system Download PDF

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KR100905656B1
KR100905656B1 KR1020070119636A KR20070119636A KR100905656B1 KR 100905656 B1 KR100905656 B1 KR 100905656B1 KR 1020070119636 A KR1020070119636 A KR 1020070119636A KR 20070119636 A KR20070119636 A KR 20070119636A KR 100905656 B1 KR100905656 B1 KR 100905656B1
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temperature
heat
storage tank
circulation pump
transmitted
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KR20090053022A (en
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박종일
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    • 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
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Abstract

본 발명은 태양열 시스템의 차온 제어 장치 및 방법에 관한 것으로, 특히 태양열을 이용한 온수 급탕 및 난방 시스템에 있어서 일사량의 조건에 따라 효율적으로 시스템이 운전되도록 하는 태양열 시스템의 순차식 차온 제어 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and method for controlling a temperature of a solar system, and more particularly, to an apparatus and method for controlling a sequential temperature of a solar system such that the system is operated efficiently according to a solar radiation condition in a hot water hot water supply and heating system using solar heat. will be.

본 발명은, 집열기의 온도를 계측하는 제1온도계측부, 축열조의 온도를 계측하는 제2온도계측부, 열매체저장조 측의 온도를 계측하는 제3온도계측부를 구비하여, 상기 제1온도계측부, 제2온도계측부, 및 제3온도계측부로부터 전송되는 온도값을 이용하여 열매체 순환펌프와 대류 순환펌프의 구동을 제어하는 것을 특징으로 한다.The present invention includes a first temperature measuring unit for measuring the temperature of the collector, a second temperature measuring unit for measuring the temperature of the heat storage tank, and a third temperature measuring unit for measuring the temperature of the heat medium storage tank side, wherein the first temperature measuring unit and the second temperature measuring unit are used. It is characterized by controlling the driving of the heat medium circulation pump and the convection circulation pump using the temperature value transmitted from the thermometer side portion and the third temperature measurement portion.

본 발명에 의하면, 태양열을 이용한 온수 및 난방 시스템에 있어서, 일사량, 기온 및 배관내 온도조건에 따라 펌프를 순차적으로 차온 제어함으로써 축열조의 열손실을 최소화하여 효율적으로 시스템을 운전할 수 있게 된다.According to the present invention, in the hot water and heating system using solar heat, by controlling the temperature of the pump sequentially according to the solar radiation, the temperature and the temperature conditions in the pipe, it is possible to efficiently operate the system by minimizing the heat loss of the heat storage tank.

태양열, 차온, 제어 Solar, cold, control

Description

태양열 시스템의 순차식 차온 제어 장치 및 방법 {APPARATUS AND METHOD FOR ADJUSTING TEMPERATURE DIFFERENCE OF SOLAR ENERGY SYSTEM}Sequential temperature control device and method of solar system {APPARATUS AND METHOD FOR ADJUSTING TEMPERATURE DIFFERENCE OF SOLAR ENERGY SYSTEM}

본 발명은 태양열 시스템의 차온 제어 장치 및 방법에 관한 것으로, 특히 태양열을 이용한 온수 급탕 및 난방 시스템에 있어서 일사량의 조건에 따라 효율적으로 시스템이 운전되도록 하는 태양열 시스템의 순차식 차온 제어 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and method for controlling a temperature of a solar system, and more particularly, to an apparatus and method for controlling a sequential temperature of a solar system such that the system is operated efficiently according to a solar radiation condition in a hot water hot water supply and heating system using solar heat. will be.

통상적인 강제순환 방식의 태양열 시스템은 집열기로부터 집열된 태양열 에너지를 축열조로 저장할 때 강제적으로 순환시켜 열교환하는 시스템으로 자연대류형에 비하여 효율이 높고, 축열조 배관의 동파를 방지할 수 있고 설치위치의 제약이 비교적 적다는 잇점이 있다.Conventional forced circulation solar system is a system that exchanges heat by forcibly circulating heat when the solar energy collected from the collector is stored in the heat storage tank, which is more efficient than the natural convection type, and prevents freezing of the heat storage pipe and limits the installation location. The advantage is relatively small.

한편, 국내에서 사용하는 태양열 시스템의 제어장치는 고온부(집열기)와 저온부(축열조)의 온도차에 의한 차온 제어 방식을 대부분 채택하고 있다.On the other hand, the control device of the solar system used in the country adopts the temperature control method by the temperature difference between the high temperature part (collector) and the low temperature part (heat storage tank).

차온 제어 방식이란 고온센서와 저온센서를 이용하여 집열기와 축열조의 온도를 감지하여 사용자가 설정한 온도차에 의해 시스템의 구동과 정지를 제어하는 방식이다.The temperature control method is a method of detecting the temperature of the collector and the heat storage tank using a high temperature sensor and a low temperature sensor to control the driving and stopping of the system by the temperature difference set by the user.

즉, 집열기와 축열조의 온도차가 설정치 이상일 경우에만 열매체순환펌프와 대류순환펌프를 가동시킴으로써 효율적인 태양열 시스템의 운전을 가능하게 하는 것이다.That is, by operating the heat medium circulation pump and the convection circulation pump only when the temperature difference between the collector and the heat storage tank is higher than the set value, it is possible to operate the solar system efficiently.

그러나, 이러한 기존의 차온 제어 방식은, 태양열시스템이 일정시간 정지시 에 배관 및 집열기 내의 온도가 축열조의 온도보다 낮은 상태에서, 최상단 고온센서와 저온센서의 설정온도차에 의해 열매체순환펌프와 대류순환펌프의 동시작동으로 인한 열손실이 발생할 수 밖에 없다.However, in the conventional temperature control method, the heat medium circulation pump and the convection circulation pump are caused by the difference of the set temperature difference between the high temperature sensor and the low temperature sensor in the state where the temperature in the pipe and the collector is lower than the temperature of the heat storage tank when the solar system is stopped for a certain time. Heat loss due to simultaneous operation of is inevitable.

본 발명의 목적은 순환펌프를 순차적으로 제어하므로써 축열조의 열손실을 최소화하여 불필요한 에너지의 낭비를 줄이고, 보다 효율적으로 운전을 제어할 수 있는 태양열 시스템의 순차식 차온 제어 장치 및 방법을 제공하는 데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a sequential temperature control device and method of a solar system that can control the operation of the circulation pump to minimize heat loss of the heat storage tank, thereby reducing unnecessary energy waste and controlling the operation more efficiently. .

상술한 바와 같은 과제를 해결하기 위하여, 본 발명에 의한 태양열 시스템의차온 제어 장치는, 태양열을 흡수하는 집열기, 상기 집열기에서 흡수한 태양열을 저장하는 축열조, 열매체를 저장하는 열매체저장조, 및 상기 집열기 측의 열매체와 축열조 측의 물을 열교환하는 열교환기를 포함하는 태양열 시스템의 순차식 차온 제어 장치로서, 상기 집열기와 열매체저장조를 연결하는 배관의 일측에 설치되어, 열매체를 상기 집열기 측으로 순환시키기 위한 열매체 순환펌프; 상기 열교환기와 축열조를 연결하는 배관의 일측에 설치되어, 상기 열교환기와 축열조의 물을 순환시키기 위한 대류 순환펌프; 상기 집열기에 설치되어 집열기의 온도를 계측하기 위한 제1온도계측부; 상기 축열조에 설치되어 축열조의 온도를 계측하기 위한 제2온도계측부; 상기 열매체저장조 측에 설치되어 열매체저장조 측의 온도를 계측하기 위한 제3온도계측부; 및 상기 제1온도계측부, 제2온도계측부, 및 제3온도계측부로부터 전송되는 온도값을 이용하여 상기 열매체 순환펌프와 대류 순환펌프의 구동을 제어하기 위한 제어부를 포함하고 있다.In order to solve the problems as described above, the temperature control device of the solar system according to the present invention, the heat collector for absorbing solar heat, the heat storage tank for storing the solar heat absorbed by the heat collector, the heat medium storage tank for storing the heat medium, and the heat collector side A sequential temperature control device of a solar thermal system including a heat exchanger for exchanging heat of a heat medium and a heat storage tank of a heat medium, and is installed on one side of a pipe connecting the heat collector and a heat medium storage tank, and a heat medium circulation pump for circulating a heat medium to the heat collector side. ; A convection circulation pump installed at one side of a pipe connecting the heat exchanger and the heat storage tank to circulate water in the heat exchanger and the heat storage tank; A first temperature measuring unit installed at the collector to measure a temperature of the collector; A second temperature measuring part installed in the heat storage tank to measure a temperature of the heat storage tank; A third temperature measuring part installed at the heat medium storage tank side to measure a temperature at the heat medium storage tank side; And a control unit for controlling the driving of the heat medium circulation pump and the convection circulation pump using temperature values transmitted from the first temperature measuring unit, the second temperature measuring unit, and the third temperature measuring unit.

또한, 본 발명에 의한 태양열 시스템의 순차식 차온 제어 방법은, 집열기에 설치된 제1온도계측부를 이용하여 집열기의 온도를 계측하고, 축열조에 설치된 제2온도계측부를 이용하여 축열조의 온도를 계측하고, 열매체저장조 측에 설치된 제3온도계측부를 이용하여 열매체저장조의 온도를 계측한 후, 상기 제1온도계측부로부터 전송된 온도값과 제2온도계측부로부터 전송된 온도값의 차를 계산하여 그 값이 설정치보다 크거나 같고, 상기 제2온도계측부로부터 전송된 온도값이 제3온도계측부로부터 전송된 온도값보다 큰 경우에, 상기 대류 순환펌프는 정지하고, 상기 열매체 순환펌프만이 구동하도록 제어하며, 제2온도계측부로부터 전송된 온도값이 제3온도계측부로부터 전송된 온도값보다 작거나 같은 경우에, 상기 열매체 순환펌프와 대류 순환펌프가 모두 구동하도록 제어한다.In addition, in the sequential temperature control method of the solar system according to the present invention, the temperature of the collector is measured using the first temperature measuring section installed in the collector, the temperature of the heat storage tank is measured using the second temperature measuring section installed in the heat storage tank, After measuring the temperature of the heat medium storage tank using the third temperature measuring part installed on the heat medium storage side, the difference between the temperature value transmitted from the first temperature measuring part and the temperature value transmitted from the second temperature measuring part is calculated and the value is set to the set value. When the temperature value greater than or equal to and greater than the temperature value transmitted from the second temperature measuring unit is greater than the temperature value transmitted from the third temperature measuring unit, the convection circulation pump is stopped and the heating medium circulation pump is controlled to be driven. The heat medium circulation pump and the convection circulation pump, when the temperature value transmitted from the temperature measurement section is less than or equal to the temperature value transmitted from the third temperature measurement section. Controls all to drive.

본 발명에 의하면, 태양열을 이용한 온수 및 난방 시스템에 있어서, 일사량, 기온 및 기상조건에 따라 펌프를 순차적으로 차온 제어함으로써 축열조의 불필요한 열손실을 미연에 방지하여 효율적으로 시스템을 운전할 수 있게 된다.According to the present invention, in the hot water and heating system using solar heat, by controlling the temperature of the pump sequentially according to the amount of insolation, air temperature and weather conditions, it is possible to efficiently operate the system by preventing unnecessary heat loss of the heat storage tank.

본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하고자 한다.Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도1은 본 발명에 의한 태양열 시스템의 전체 구성을 도시한 개략도이며, 도 2는 본 발명에 의한 태양열 시스템의 순차식 차온 제어 장치의 구성을 도시한 블록도이다.1 is a schematic diagram showing the overall configuration of a solar system according to the present invention, Figure 2 is a block diagram showing the configuration of a sequential temperature control device of a solar system according to the present invention.

도시된 바와 같이, 본 발명에 의한 태양열 시스템의 순차식 차온 제어 장치는, 태양열을 흡수하는 집열기(100), 상기 집열기(100)에서 흡수한 태양열을 저장하는 축열조(200), 열매체를 저장하는 열매체저장조(300), 및 상기 집열기 측의 열매체와 축열조 측의 물을 열교환하는 열교환기(400)를 포함하는 태양열 시스템의 순차식 차온 제어 장치로서, 상기 집열기(100)와 열매체저장조(300)를 연결하는 배관(10)의 일측에 설치되어, 열매체를 상기 집열기(100) 측으로 순환시키기 위한 열매체 순환펌프(P1); 상기 열교환기(400)와 축열조(200)를 연결하는 배관(20)의 일측에 설치되어, 상기 축열조(200)측의 물을 상기 열교환기(400) 측으로 순환시키기 위한 대류 순환펌프(P2); 상기 집열기(100)에 설치되어 집열기(100)의 온도를 계측하기 위한 제1온도계측부(110); 상기 축열조(200)에 설치되어 축열조(200)의 온도를 계측하기 위한 제2온도계측부(210); 상기 열매체저장조(300) 측에 설치되어 열매체저장조(300)의 온도를 계측하기 위한 제3온도계측부(310); 및 상기 제1온도계측부(110), 제2온도계측부(210), 및 제3온도계측부(310)로부터 전송되는 온도값을 이용하여 상기 열매체 순환펌프(P1)와 대류 순환펌프(P2)의 구동을 제어하기 위한 제어부(500)로 구성되어진다.As shown, the sequential temperature control device of the solar system according to the present invention, the heat collector for absorbing solar heat, the heat storage tank 200 for storing the solar heat absorbed by the heat collector 100, the heat medium for storing the heat medium As a sequential temperature control device of a solar system including a storage tank 300, and a heat exchanger 400 for heat-exchanging the heat medium on the heat collector side and the water on the heat storage tank side, the heat collector 100 and the heat medium storage tank 300 are connected. A heat medium circulation pump (P1) installed at one side of the pipe (10) to circulate the heat medium to the heat collector (100) side; A convection circulation pump (P2) installed at one side of a pipe (20) connecting the heat exchanger (400) and the heat storage tank (200) to circulate water on the heat storage tank (200) side to the heat exchanger (400) side; A first temperature measuring unit 110 installed at the collector 100 to measure a temperature of the collector 100; A second temperature measuring part 210 installed in the heat storage tank 200 for measuring a temperature of the heat storage tank 200; A third temperature measuring part 310 installed at the heat medium storage tank 300 to measure a temperature of the heat medium storage tank 300; And driving the heat medium circulation pump P1 and the convection circulation pump P2 using temperature values transmitted from the first temperature measuring unit 110, the second temperature measuring unit 210, and the third temperature measuring unit 310. It is composed of a control unit 500 for controlling.

도1을 참조하여, 태양열 시스템의 작동 과정에 대해 살펴보면, 열매체저장조(300)에 저장된 열매체가 열매체순환펌프(P1)에 의해 집열기(100)로 유입되어 흡수된 태양열에 의해 온도가 상승하고, 열교환기(400) 측으로 이송되어진다. 이때, 열교환기(400) 측의 열이 축열조(200) 측으로 전달되고, 이 과정에서 온도가 낮아진 열매체는 열매체저장조(300)를 거쳐 열매체순환펌프(P1)에 의해 다시 집열기(100)로 이송되는 과정이 반복된다. 한편, 축열조(200)를 거쳐 공급되는 저온의 물이 대류순환펌프(P2)에 의해 열교환기(400) 측으로 유입되어 열교환되어 전달받 은 열을 축열조(200)에 저장하는 과정을 반복하게 된다.Referring to Figure 1, the operating process of the solar system, the heat medium stored in the heat medium storage tank 300 is heated by the heat medium circulation pump (P1) by the heat absorbed by the heat absorbed by the solar heat, heat exchange It is conveyed to the machine 400 side. At this time, the heat of the heat exchanger 400 side is transferred to the heat storage tank 200 side, the heat medium is lowered in this process is transferred to the heat collector 100 by the heat medium circulation pump (P1) via the heat medium storage tank (300). The process is repeated. On the other hand, the low-temperature water supplied through the heat storage tank 200 is introduced into the heat exchanger 400 by the convection circulation pump (P2) to repeat the process of storing the heat received in the heat storage tank (200).

이 과정에서, 태양열이 집열기(100)에 흡수되면, 집열기(100)에 설치된 제1온도검출부(110)에 의해 집열기의 온도가 계측되어지고, 축열조(200)에 설치된 제2온도검출부(210)에 의해 축열조의 온도가 계측되어지고, 열매체저장조(300)측에 설치된 제3온도검출부(310)에 의해 열매체저장조(300)의 온도가 계측되어지고, 계측된 온도값(T1,T2,T3)들은 상기 제어부(500)로 전송되어진다.In this process, when solar heat is absorbed by the collector 100, the temperature of the collector is measured by the first temperature detector 110 installed in the collector 100, and the second temperature detector 210 installed in the heat storage tank 200. The temperature of the heat storage tank is measured, the temperature of the heat medium storage tank 300 is measured by the third temperature detector 310 provided on the heat medium storage tank 300 side, and the measured temperature values (T1, T2, T3). Are transmitted to the control unit 500.

이때, 열매체저장조(300)의 온도와 열교환기(400)의 온도는 크게 차이가 없으므로, 상기 제3온도계측부(310)는 반드시 열매체저장조(300)에 설치될 필요는 없으며, 열교환기(400)에 설치되거나, 또는 열매체저장조(300)와 열교환기(400) 사이의 배관(30)에 설치될 수도 있다.In this case, since the temperature of the heat medium storage tank 300 and the temperature of the heat exchanger 400 do not differ significantly, the third temperature measuring part 310 does not necessarily need to be installed in the heat medium storage tank 300, and the heat exchanger 400 is used. It may be installed in, or may be installed in the pipe 30 between the heat medium storage tank 300 and the heat exchanger 400.

상기 제어부(500)에서는, 상기 제1온도계측부로(110)부터 전송된 온도값(T1)과 제2온도계측부(210)로부터 전송된 온도값(T2)의 차를 계산하여 그 값이 설정치(ㅿT)보다 크거나 같고, 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부(310)로부터 전송된 온도값(T3)보다 큰 경우에, 상기 제어부(500)가, 상기 대류 순환펌프(P2)는 정지하고, 상기 열매체 순환펌프(P1)만이 구동하도록 제어한다.The controller 500 calculates a difference between the temperature value T1 transmitted from the first temperature measurement unit 110 and the temperature value T2 transmitted from the second temperature measurement unit 210 and the value is a set value ( When the temperature value T2 greater than or equal to T and the temperature value T2 transmitted from the second temperature measurement unit 210 is greater than the temperature value T3 transmitted from the third temperature measurement unit 310, the control unit 500 The convection circulation pump P2 stops and controls only the heat medium circulation pump P1 to be driven.

여기서, 상기 제1온도계측부로(110)부터 전송된 온도값(T1)과 제2온도계측부(210)로부터 전송된 온도값(T2)의 차를 계산하여 그 값이 설정치(ㅿT)보다 크거나 같지만, 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부(310)로부터 전송된 온도값(T3)보다 작거나 같은 경우에는, 상기 열매체 순환펌프(P1)와 대류 순환펌프(P2)가 모두 구동하도록 제어한다. Here, the difference between the temperature value T1 transmitted from the first temperature measuring part 110 and the temperature value T2 transmitted from the second temperature measuring part 210 is calculated and the value is larger than the set value (ㅿ T). Or the same, but when the temperature value T2 transmitted from the second temperature measurement unit 210 is less than or equal to the temperature value T3 transmitted from the third temperature measurement unit 310, the convection with the heat medium circulation pump P1 is performed. Control the circulating pump (P2) to drive all.

도 3은 종래 태양열 시스템의 차온 제어 방법을 도시한 흐름도이다.3 is a flowchart illustrating a method of controlling temperature of a conventional solar system.

도 3을 참조하면, 종래의 제어방법에서는, 집열기 측의 온도(T1)와 축열조 측의 온도(T2)를 계측하여(S101), 두 온도값의 차를 설정치(ㅿT)와 비교하고(S102), 그 차이가 설정치(ㅿT)보다 크거나 같은 경우에 열매체 순환펌프와 대류 순환펌프를 구동하여 전체 시스템을 가동하도록 한다(S103). 만약, 집열기 측의 온도(T1)와 축열조 측의 온도(T2)의 차가 설정치(ㅿT)보다 작은 경우에는 열매체 순환펌프와 대류 순환펌프를 정지시켜 전체 시스템의 가동을 정지하도록 한다(S105). 여기서, 상기 설정치(ㅿT)를 구동 설정치(ㅿTon; 예를 들면 11℃내외)와 정지 설정치(ㅿToff; 예를 들면 3～4℃내외)로 세분화하여 비교할 수도 있다(S103, S104).Referring to Fig. 3, in the conventional control method, the temperature T1 on the collector side and the temperature T2 on the heat storage tank side are measured (S101), and the difference between the two temperature values is compared with the set value (T) (S102). If the difference is greater than or equal to the set value (치 T), the entire system is operated by driving the heat medium circulation pump and the convection circulation pump (S103). If the difference between the temperature T1 on the collector side and the temperature T2 on the heat storage tank side is smaller than the set value [T], the heat medium circulation pump and the convection circulation pump are stopped to stop the operation of the entire system (S105). Here, the set value (T) may be further divided into a drive set value (Ton (for example, about 11 ° C)) and a stop set value (#Toff (for example, about 3 to 4 ° C)) and compared (S103, S104).

결과적으로, 이러한 제어 방법을 통해, 야간과 같이 태양열의 흡수가 용이하지 않은 때에 태양열 시스템이 불필요하게 가동되는 것을 방지할 수 있다.As a result, this control method can prevent the solar system from running unnecessarily when the absorption of solar heat is not easy, such as at night.

이와 관련하여, 본 발명에서는, 종래의 차온 제어 방법과 같이 단순히 집열기(100) 측의 온도와 축열조(200) 측의 온도만을 비교하는 것이 아니라, 열매체저장조(300) 측의 온도까지 고려함으로써, 축열조(200)와 열교환기(400) 사이의 불필요한 대류순환을 방지하여 축열조(200)의 열손실을 최소화할 수 있게 된다.In this regard, in the present invention, the heat storage tank is considered by not only comparing the temperature of the collector 100 side with the temperature of the heat storage tank 200 side, but also considering the temperature of the heat medium storage tank 300 side as in the conventional temperature control method. By preventing unnecessary convection circulation between the 200 and the heat exchanger 400 it is possible to minimize the heat loss of the heat storage tank (200).

도 4는 본 발명에 의한 태양열 시스템의 순차식 차온 제어 방법을 도시한 흐름도이다.4 is a flowchart illustrating a sequential temperature control method of a solar system according to the present invention.

도 4를 참조하면, 집열기의 온도(T1), 축열조의 온도(T2), 및 열매체저장조 측의 온도(T3)를 계측하여(S201), 두 온도값(T1,T2)의 차를 설정치(ㅿT)와 비교하여(S202), 그 차이가 설정치(ㅿT)보다 크거나 같으면, 축열조 측의 온도(T2)가 열 매체저장조 측의 온도(T3)보다 큰지를 비교하여(S203), 큰 경우에는 열매체 순환펌프는 구동하고 대류 순환펌프는 정지하도록 제어한다(S204).Referring to FIG. 4, the temperature T1 of the collector, the temperature T2 of the heat storage tank, and the temperature T3 of the heat storage tank are measured (S201), and the difference between the two temperature values T1, T2 is set. Compared with T (S202), if the difference is greater than or equal to the set value (ㅿ T), compares whether the temperature T2 on the heat storage tank side is greater than the temperature T3 on the heat medium storage tank side (S203) The heating medium circulation pump is driven and the convection circulation pump is controlled to stop (S204).

즉, 종래의 차온 제어 방법에 축열조 측의 온도(T2)와 열매체저장조 측의 온도(T3)를 비교하여 대류순환펌프를 정지하도록 제어하는 과정을 추가함으로써, 열매체저장조나 열교환기 측의 온도가 축열조 측의 온도보다 낮은 상태에 발생하는 대류순환을 방지함으로써 축열조(200)의 열손실을 최소화할 수 있게 된다.That is, by adding a process of controlling the convective circulation pump to stop by comparing the temperature T2 on the heat storage tank side with the temperature T3 on the heat medium storage tank to the conventional temperature control method, the temperature of the heat storage tank or the heat exchanger side is increased. It is possible to minimize the heat loss of the heat storage tank 200 by preventing the convection circulation occurring in a state lower than the temperature of the side.

여기서, 상기 두 온도값(T1,T2)의 차가 설정치(ㅿT)보다 작은 경우에는, 열매체 순환펌프와 대류 순환펌프를 정지시켜 전체 시스템의 가동을 정지하도록 한다(S205). 이때, 종래의 차온 제어 방법에서와 같이, 상기 설정치(ㅿT)를 구동 설정치(ㅿTon; 예를 들면 11℃내외)와 정지 설정치(ㅿToff; 예를 들면 3～4℃내외)로 세분화하여 비교할 수도 있다(S202, S205).Here, when the difference between the two temperature values (T1, T2) is smaller than the set value (ㅿ T), the heat medium circulation pump and the convection circulation pump are stopped to stop the operation of the entire system (S205). At this time, as in the conventional temperature control method, the set value (ㅿ T) is subdivided into a drive set value (ㅿ Ton (for example, about 11 ° C)) and a stop setpoint (ㅿ Toff (for example, about 3-4 ° C) Comparison may also be made (S202, S205).

또한, 축열조 측의 온도(T2)가 열매체저장조 측의 온도(T3)보다 크지 않은 경우에는, 열매체 순환펌프와 대류 순환펌프를 구동하여 전체 시스템을 가동하도록 한다(S206).When the temperature T2 on the heat storage tank side is not greater than the temperature T3 on the heat medium storage tank side, the heat system circulation pump and the convection circulation pump are driven to operate the entire system (S206).

이러한 제어 방법을 통하여, 축열조(200)와 열교환기(400) 사이의 불필요한 대류순환을 방지하여 축열조(200)의 열손실을 최소화할 수 있게 된다.Through this control method, it is possible to minimize the heat loss of the heat storage tank 200 by preventing unnecessary convection circulation between the heat storage tank 200 and the heat exchanger 400.

이상과 같이 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 명세서 및 청구범위에 사용되는 용어나 단어는 통상적이거나 사전적인 의미로 한정되어 해석되어서는 아니되며, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있음을 이해하여야 한다.As described above, although the present invention has been described with reference to limited embodiments and drawings, terms or words used in the present specification and claims are not limited to the ordinary or dictionary meanings and should not be interpreted. It must be interpreted as meaning and concept. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there are equivalents and variations.

도 1은 본 발명에 의한 태양열 시스템의 전체 구성을 도시한 개략도.1 is a schematic diagram showing the overall configuration of a solar system according to the present invention.

도 2는 본 발명에 의한 태양열 시스템의 순차식 차온 제어 장치의 구성을 도시한 블록도.2 is a block diagram showing the configuration of a sequential temperature control device of a solar system according to the present invention.

도 3은 종래 태양열 시스템의 차온 제어 방법을 도시한 흐름도.3 is a flowchart illustrating a method of controlling temperature of a conventional solar system.

도 4는 본 발명에 의한 태양열 시스템의 순차식 차온 제어 방법을 도시한 흐름도.Figure 4 is a flow chart illustrating a sequential temperature control method of the solar system according to the present invention.

<도면의 주요부분에 부호의 설명><Description of the symbols in the main part of the drawing>

100 ... 집열기 200 ... 축열조100 ... collector 200 ... heat storage tank

300 ... 열매체저장조 400 ... 열교환기300 ... heat medium storage tank 400 ... heat exchanger

500 ... 제어부 110 ... 제1온도계측부500 ... control unit 110 ... first temperature measuring unit

210 ... 제2온도계측부 310 ... 제3온도계측부210 ... second temperature measurement unit 310 ... third temperature measurement unit

P1 ... 열매체 순환펌프 P2 ... 대류 순환펌프P1 ... heat medium circulation pump P2 ... convection circulation pump

Claims (6)

태양열을 흡수하는 집열기(100), 상기 집열기(100)에서 흡수한 태양열을 저장하는 축열조(200), 열매체를 저장하는 열매체저장조(300), 상기 집열기(100)측의 열매체와 축열조(200)측의 물을 열교환하는 열교환기(400)를 포함하는 태양열 시스템의 순차식 차온 제어 장치로서,Heat collector 100 for absorbing solar heat, heat storage tank 200 for storing the solar heat absorbed by the heat collector 100, heat medium storage tank 300 for storing the heat medium, heat medium and heat storage tank 200 side of the heat collector 100 side As a sequential temperature control device of a solar system comprising a heat exchanger 400 for heat exchange of water, 열매체를 상기 집열기(100)측으로 순환시키는 열매체 순환펌프(P1);Heat medium circulation pump (P1) for circulating the heat medium to the collector 100 side; 상기 축열조(200)측의 물을 상기 열교환기(400)측으로 순환시키는 대류 순환펌프(P2);A convection circulation pump (P2) for circulating water in the heat storage tank 200 to the heat exchanger 400 side; 집열기(100)의 온도를 계측하는 제1온도계측부(110);A first temperature measuring unit 110 measuring a temperature of the collector 100; 축열조(200)의 온도를 계측하는 제2온도계측부(210);A second temperature measuring unit 210 measuring the temperature of the heat storage tank 200; 열매체저장조(300)측의 온도를 계측하는 제3온도계측부(310); 및A third temperature measuring part 310 for measuring the temperature at the heat medium storage tank 300 side; And 상기 제1온도계측부(110)로부터 전송된 온도값(T1)과 제2온도계측부(210)로부터 전송된 온도값(T2)의 차이를 설정치(ㅿT)와 비교하고, 제2온도계측부(210)로부터 전송된 온도값(T2)과 제3온도계측부(310)로부터 전송된 온도값(T3)을 비교하여, 그 비교결과에 따라 상기 열매체 순환펌프(P1)와 대류 순환펌프(P2)의 구동을 제어하는 제어부(500)를 포함하는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 장치.The difference between the temperature value T1 transmitted from the first temperature measuring unit 110 and the temperature value T2 transmitted from the second temperature measuring unit 210 is compared with a set value (ㅿ T), and the second temperature measuring unit 210 is compared. Compares the temperature value T2 transmitted from the temperature value T2 and the temperature value T3 transmitted from the third temperature measurement part 310, and drives the heating medium circulation pump P1 and the convection circulation pump P2 according to the comparison result. Sequential temperature control device of a solar system comprising a control unit 500 for controlling the. 제1항에 있어서, 상기 제어부(500)는,The method of claim 1, wherein the control unit 500, 상기 제1온도계측부로(110)부터 전송된 온도값(T1)과 제2온도계측부(210)로부터 전송된 온도값(T2)의 차이를 계산하여 그 값이 설정치(ㅿT)보다 크거나 같고, 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부(310)로부터 전송된 온도값(T3)보다 큰 경우에, 상기 대류 순환펌프(P2)는 정지하고, 상기 열매체 순환펌프(P1)만이 구동하도록 제어하고,The difference between the temperature value T1 transmitted from the first temperature measuring part 110 and the temperature value T2 transmitted from the second temperature measuring part 210 is calculated and the value is greater than or equal to the set value (ㅿ T). , When the temperature value T2 transmitted from the second temperature measurement unit 210 is greater than the temperature value T3 transmitted from the third temperature measurement unit 310, the convection circulation pump P2 stops and the heat medium Control to drive only the circulation pump (P1), 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부(310)로부터 전송된 온도값(T3)보다 작거나 같은 경우에는, 상기 열매체 순환펌프(P1)와 대류 순환펌프(P2)가 모두 구동하도록 제어하는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 장치.When the temperature value T2 transmitted from the second temperature measurement unit 210 is less than or equal to the temperature value T3 transmitted from the third temperature measurement unit 310, the heat medium circulation pump P1 and the convection circulation pump ( Sequential temperature control device of the solar system, characterized in that to control all the driving P2). 제1항 또는 제2항에 있어서, 상기 제3온도계측부(310)는,The method of claim 1 or 2, wherein the third temperature measuring unit 310, 상기 열매체저장조(300) 또는 열교환기(400)에 설치되거나, 상기 열매체저장조(300)와 열교환기(400) 사이의 배관(30)에 설치되는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 장치.The thermal medium storage tank 300 or the heat exchanger 400, or the temperature difference control device of the solar system, characterized in that installed in the pipe 30 between the heat medium storage tank 300 and the heat exchanger (400). 태양열 시스템의 순차식 차온 제어 방법으로서,As a sequential temperature control method of the solar system, 제1온도계측부(110)를 이용하여 집열기(100)의 온도를 계측하고,The temperature of the collector 100 is measured using the first temperature measuring unit 110, 제2온도계측부(210)를 이용하여 축열조(200)의 온도를 계측하고,The temperature of the heat storage tank 200 is measured by using the second temperature measuring unit 210, 제3온도계측부(310)를 이용하여 열매체저장조(300)측의 온도를 계측한 후,After measuring the temperature of the heat medium storage tank 300 side by using the third temperature measuring unit 310, 상기 제1온도계측부(110)로부터 전송된 온도값(T1)과 제2온도계측부(210)로부터 전송된 온도값(T2)의 차를 계산하여 그 값이 설정치(ㅿT)보다 크거나 같고, 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부로(310)부터 전송된 온도값(T3)보다 큰 경우에, 상기 대류 순환펌프(P2)는 정지하고, 상기 열매체 순환펌프(P1)만이 구동하도록 제어하는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 방법.The difference between the temperature value T1 transmitted from the first temperature measurement unit 110 and the temperature value T2 transmitted from the second temperature measurement unit 210 is calculated and the value is greater than or equal to the set value (ㅿ T), When the temperature value T2 transmitted from the second temperature measuring unit 210 is greater than the temperature value T3 transmitted from the third temperature measuring unit 310, the convection circulation pump P2 is stopped and the heat medium A sequential temperature control method of a solar system, characterized in that the control to drive only the circulation pump (P1). 제4항에 있어서,The method of claim 4, wherein 상기 제2온도계측부(210)로부터 전송된 온도값(T2)이 제3온도계측부(310)로부터 전송된 온도값(T3)보다 작거나 같은 경우에는, 상기 열매체 순환펌프(P1)와 대류 순환펌프(P2)가 모두 구동하도록 제어하는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 방법.When the temperature value T2 transmitted from the second temperature measurement unit 210 is less than or equal to the temperature value T3 transmitted from the third temperature measurement unit 310, the heat medium circulation pump P1 and the convection circulation pump Sequential temperature control method of the solar system, characterized in that to control all the driving (P2). 제4항 또는 제5항에 있어서, 상기 제3온도계측부(310)는,The method of claim 4 or 5, wherein the third temperature measuring unit 310, 상기 열매체저장조(300) 또는 열교환기(400)에 설치되거나, 상기 열매체저장조(300)와 열교환기(400) 사이의 배관(30)에 설치되는 것을 특징으로 하는 태양열 시스템의 순차식 차온 제어 방법.The thermal medium storage tank 300 or the heat exchanger 400 is installed, or the differential heating control method of the solar system, characterized in that installed in the pipe (30) between the heat medium storage tank 300 and the heat exchanger (400).
KR1020070119636A 2007-11-22 2007-11-22 Sequential differential temperature control device and method of solar system KR100905656B1 (en)

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KR940008225A (en) * 1992-09-28 1994-04-29 사또오 후미오 Digital frequency modulator
KR20040016934A (en) * 2004-02-03 2004-02-25 윤정열 apparatus for hot-water supply
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KR940008225A (en) * 1992-09-28 1994-04-29 사또오 후미오 Digital frequency modulator
KR20050047151A (en) * 2003-11-17 2005-05-20 공번아 Heating system
KR20040016934A (en) * 2004-02-03 2004-02-25 윤정열 apparatus for hot-water supply

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