KR950005848B1 - Safety apparatus of boiler circulation pump - Google Patents
Safety apparatus of boiler circulation pump Download PDFInfo
- Publication number
- KR950005848B1 KR950005848B1 KR1019920000420A KR920000420A KR950005848B1 KR 950005848 B1 KR950005848 B1 KR 950005848B1 KR 1019920000420 A KR1019920000420 A KR 1019920000420A KR 920000420 A KR920000420 A KR 920000420A KR 950005848 B1 KR950005848 B1 KR 950005848B1
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- South Korea
- Prior art keywords
- pressure
- circulation pump
- temperature
- pump
- water
- Prior art date
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- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 239000008236 heating water Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
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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
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
- Pipeline Systems (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
제1도는 종래예에 따른 난방수의 순환회로도.1 is a circulation circuit diagram of heating water according to a conventional example.
제2도는 본 발명에 의한 순환펌프안전장치의 구체적인 회로도.2 is a specific circuit diagram of the circulation pump safety device according to the present invention.
제3도는 본 발명에 의한 순환펌프안전장치의 전체적인 동작을 설명하는 플로우챠트이다.3 is a flowchart illustrating the overall operation of the circulation pump safety device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 순환펌프 2 : 입력관1: circulation pump 2: input pipe
3 : 압력센서 4 : 온도센서3: pressure sensor 4: temperature sensor
5 : 인출선 6 : 아날로그-디지탈 변환회로5: lead wire 6: analog-to-digital conversion circuit
7 : 마이크로콤퓨터 8 : 출력관.7: microcomputer 8: output tube.
본 발명은 보일러의 설치되는 순환펌프에 괸한 것으로, 특히 순환펌프의 입력관에 유입되는 난방수의 압력과 그 온도를 감지하여 그 결과에 따라 순환펌프를 제어함으로써 펌프자체의 소손을 방지할 수 있는 순환펌프의 안전장치에 관한 것이다.The present invention is directed to a circulating pump installed in a boiler, and in particular, by detecting the pressure and temperature of the heating water flowing into the input pipe of the circulating pump and controlling the circulating pump according to the result, it is possible to prevent the burnout of the pump itself. The safety device of the circulation pump.
일반적으로 보일러는 실내의 난방과 온수의 공급을 목적으로 사용되는 것으로, 종래의 난방수 순환회로는다음과 같다.In general, the boiler is used for the purpose of heating the room and supply of hot water, the conventional heating water circulation circuit is as follows.
즉, 제1도에 도시된 바와같이 난방수가 환수되어 유입되는 입력관(2)이 순환펌프(1)에 연결되고 이 순환펌프(1)는 출력관(8)을 통해 도시되지 않은 열교환기에 연결되며, 이 열교환기는 배출관(9)을 통해 삼방밸브(l0)에 연결되어 있다.That is, as shown in FIG. 1, the input pipe 2 into which the heating water is returned and introduced is connected to the circulation pump 1, and the circulation pump 1 is connected to a heat exchanger (not shown) through the output tube 8. This heat exchanger is connected to a three-way valve 10 through a discharge pipe 9.
또한 상기 삼방밸브(10)는 공급관(11)을 통해 난방수분배기(12)에 연결되고, 이 난방수분배기(12)에는 상기 입력관(2)과 연결되는 환수배관(13) 및 급수배관(14)이 구성되어 있다.In addition, the three-way valve 10 is connected to the heating water distributor 12 through the supply pipe 11, the heating water distributor 12, the return pipe 13 and the water supply pipe (connected to the input pipe 2) ( 14) is configured.
이와 같은 난방수 순환회로는 순환펌프(1)가 회전되면 압력이 상승한 물이 도시되지 않은 열교환기를 통과하여 삼방밸브(10)에 도달되고, 이때 제l도에 도시된 A부위는 순환펌프의 흡입측이 되어 압력이 떨어지게 된다.When the circulation pump 1 rotates, the heated water circulation circuit 1 reaches the three-way valve 10 through a heat exchanger (not shown) where the pressure is increased, and the portion A shown in FIG. The pressure drops.
따라서, 난방수분배기(12)의 B부위에 저압실이 형성된다.Therefore, the low pressure chamber is formed in the B portion of the heating water distributor 12.
상기 삼방밸브(10)에서 공급관(11)을 통과하여 온 물은 난방수분배기(12)의 C실을 고압실로 형성하게 되어 우측으로 다이아프램을 밀게된다. 이때 유량이 적정치 이하일 경우 D실을 막고 있는 바이패스밸브(E)가 우측으로 열리면서 D실에 있던 물은 바이패스밸브(E)를 통하여 바로 B실로 들어와서 순환펌프로 되돌아간다.Water passing through the supply pipe 11 from the three-way valve 10 forms the C chamber of the heating water distributor 12 as a high pressure chamber, and pushes the diaphragm to the right. At this time, if the flow rate is below the proper value, the bypass valve E blocking the chamber D opens to the right, and the water in the chamber D immediately enters the chamber B through the bypass valve E and returns to the circulation pump.
이와 같은 작동에 의해 주열교환기로 공급되는 난방환수를 항상 일정하게 유지시켜주게 되는 것이다.By this operation, the heating return supplied to the main heat exchanger is always kept constant.
이러한 난방환수의 순환계통에 있어서 종래에는 보일러의 특성이나 배관 또는 다른 기구물의 보호를 위해 순환펌프를 제어하여 왔으나 순환펌프자체의 특성에 맞게 이를 보호할 수 있는 제어장치가 마련되어 있지 않았다.In the circulation system of the heating return, conventionally, the circulation pump has been controlled to protect the characteristics of the boiler or the piping or other equipment, but no control device is provided to protect the circulation pump according to the characteristics of the circulation pump itself.
즉, 일예로 수온(T)이 75℃≤T≤90℃의 범위내에서 보일러내부의 이상발생으로 수압이 0.049BAR이하가 되면 수압이 떨어짐에 따라 순환펌프내로 적량이 못되는 난방환수가 공급됨으로써 순환펌프가 공회전하게되고, 이에 따라 정압이 그때의 물의 증기압보다 낮아짐으로써 부분적으로 증기가 발생하여 보일러내가 캐비테이션 효과로 인해 소음이 발생하게 되고, 또한 캐비테이션에 의해 상기 순환펌프(l)의 공회전으로 기기상에 떨림이 발생되어 보일러의 수명이 단축된다고 하는 문제점이 있었다.That is, for example, when the water pressure falls below 0.049 BAR due to an abnormal occurrence in the boiler within the range of 75 ° C. ≤ T ≤ 90 ° C., the water pressure drops and the heating return is not appropriately supplied into the circulation pump. The circulation pump is idling, and thus, the static pressure is lower than the vapor pressure of water at that time, so that steam is partially generated and noise is generated due to the cavitation effect in the boiler, and the device is driven by idling of the circulation pump l by cavitation. There was a problem in that shaking occurred in the phase and shortened the life of the boiler.
따라서, 본 발명은 상기와 같은 종래 문제점을 해결하기 위하여 이루어진 것으로, 순환펌프의 입력관으로 유입되는 난방환수의 입력과 그 온도를 검출하여 그 검출결과에 따라 순환펌프에 구동제어신호를 마이크로콤퓨터에서 계속 공급하거나 또는 차단하여 순환펌프의 구동을 제어함으로씨 펌프자체의 소손을 방지할 수있는 보일러 순환펌프의 안전장치를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the conventional problems as described above, by detecting the input of the heating return flows into the input pipe of the circulation pump and its temperature and according to the detection result in the drive control signal to the circulation pump in the microcomputer It is an object of the present invention to provide a safety device for a boiler circulation pump that can prevent the burnout of the seed pump itself by controlling the operation of the circulation pump by continuously supplying or shutting off.
상기 목적을 달성하기 위하여 본 발명은 보일러 순환펌프의 안전장치에 있어서, 순환펌프의 입력관 내측에 배설되어 난방환수의 온도를 검출하는 온도센서와, 상기 순환펌프의 입력관 내측에 배설되어서 난방환수의 압력을 검출하는 압력센서와, 상기 압력센서 및 온도센서에 의해 각각 검출된 아날로그 상태의 압력 및 온도를 받아서 디지탈신호로 변환하는 아날로그-디지탈 변화회로와, 상기 아날로그-디지탈 변환회로에서디지탈 신호로 변환된 압력 및 온도에 관한 디지탈 신호를 받아서 미리 설정된 기준압력 및 기준온도보다 클 경우에는 상기 순환펌프를 구동시켜서 난방환수를 순환시키도록 상기 순환펌프에 제어신호를 출력하고 미리 설정된 기준압력 및 기준온도보다 낮을 경우에는 상기 순환펌프의 구동을 정지시키도록 상기 순환펌프의 제어신호의 출력을 차단하는 마이크로 콤퓨터를 구비한 것을 특징으로 한다.In order to achieve the above object, the present invention provides a safety device for a boiler circulation pump, the temperature sensor disposed inside the input tube of the circulation pump to detect the temperature of the heating return, and disposed inside the input tube of the circulation pump to return the heating. A pressure sensor for detecting the pressure of the analog signal, an analog-digital change circuit for receiving the pressure and temperature of the analog states detected by the pressure sensor and the temperature sensor, respectively, and converting the digital signal into a digital signal, and the analog-digital conversion circuit as a digital signal. If the digital signal about the converted pressure and temperature is greater than the preset reference pressure and the reference temperature, the control signal is output to the circulation pump to circulate the heating return by driving the circulation pump and the preset reference pressure and reference temperature. If it is lower than the first of the circulation pump to stop the operation of the circulation pump It is characterized by including a microcomputer to block the output of the fish signal.
상기와 같이 구성된 본 발명은 순환펌프의 입력관으로 유입되는 난방환수의 온도와 이 온도에 따라 설정된 최소 흡입압력이 조건을 비교하여 이 조건을 충족하지 못할 경우 순환펌프의 동작을 정지시킴으로써 펌프의 안전을 도모함과 동시에, 펌프의 효율적인 운전을 이룰 수 있다.The present invention configured as described above is the safety of the pump by stopping the operation of the circulating pump when the temperature of the heating return flowing into the input pipe of the circulation pump and the minimum suction pressure set according to this temperature does not meet this condition At the same time, efficient operation of the pump can be achieved.
이하, 본 발명의 실시예를 도면을 참조로하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
제2도에는 본 발명에 따른 순환펌프안전장치의 전체적인 구성이 도시되어 있다. 또한, 제2도에 있어서 제1도와 동일한 부분에 대해서는 동일한 부호를 붙이고 중복되는 설명은 생략한다.2 shows the overall configuration of the circulation pump safety device according to the present invention. In addition, in FIG. 2, the same code | symbol is attached | subjected about the same part as FIG. 1, and the overlapping description is abbreviate | omitted.
제2도에 도시한 바와 같이 난방환수를 순환시키는 순환펌프(1)의 입력관(2)에는 유입되는 난방환수의 압력을 감지하는 압력센서(3)가 난방환수의 온도를 감지하는 온도센서(4)와 함께 배설되어 있고, 이들 온도센서(4) 및 압력센서(3)는 인출선(5b, 51a)을 통해 아날로그-디지탈변환회로(6)에 연결되며, 이 아날로그-디지탈변환회로(6)에서 상기 압력센서(3) 및 온도센서(4)에 의해 검출한 아날로그신호를 디지탈신호로 변환하여 마이크로 콤퓨터(7 : 이하, 마이컴이라 함)에 입력시키도록 상기 아날로그-디지탈변환회로(6)의 출력단은 마이컴(7)에 접속되어 있고, 상기 마이컴(7)에 출력단은 상기 아날로그-디지탈변환회로(6)로 부터 입력되는 입력관(2)내의 난빙환수의 온도 및 압력에 따라 순환펌프(1)를 제어하도록 순환펌프(1)에 연결된 구조로 되어 있다.As shown in FIG. 2, the input tube 2 of the circulation pump 1 for circulating the heating return has a temperature sensor for sensing the temperature of the heating return by a pressure sensor 3 for detecting the pressure of the incoming heating return. 4), and these temperature sensors 4 and pressure sensors 3 are connected to analog-to-digital conversion circuits 6 through lead lines 5b and 51a, and the analog-to-digital conversion circuits 6 The analog-digital conversion circuit 6 converts an analog signal detected by the pressure sensor 3 and the temperature sensor 4 into a digital signal and inputs the same to a microcomputer (7: hereinafter referred to as a microcomputer). Is connected to the microcomputer 7, and the output terminal to the microcomputer 7 is connected to the microcomputer 7 according to the temperature and pressure of the non-returning water return in the input pipe 2 input from the analog-digital conversion circuit 6. It is connected to the circulation pump 1 to control 1).
이와 같이 구성된 본 발명의 일실시예에 의한 순환펌프 안전장치의 작용 및 효과에 대하여 설명한다.The operation and effects of the circulation pump safety device according to the embodiment of the present invention configured as described above will be described.
순환펌프(1)가 마이콤(7)의 제어신호에 따라 회전되면 입력관(2)과 출력관(8)내의 난방환수의 압력변화를 일으켜 난방환수를 순환시킨다. 이때, 입력관(2) 내부에 설치된 온도센서(4)는 관내부로 유입되는 난방환수의 수온을 감지하고 이 온도센서(4)의 함께 그 인접하여 설치되는 압력센서(3)는 유입되는 난방환수의 압력을 감지하게 된다.When the circulation pump 1 is rotated according to the control signal of the microcomputer 7, the pressure of the heating return in the input pipe 2 and the output pipe 8 is changed to circulate the heating return. At this time, the temperature sensor 4 installed inside the input pipe 2 detects the water temperature of the heating return water flowing into the pipe and the pressure sensor 3 installed adjacent to the temperature sensor 4 together with the heating return water flowing therein. It will detect the pressure of.
이와 같이 온도센서(4)와 압력센서(3)에 의해 감지된 난방환수의 온도 및 압력 데이터는 아날로그 형태로 연출선(5b, 5a)을 통해 아날로그-디지탈변환회로(6)로 인가되어 이 아날로그-디지탈변환회로(6)에서 디지탈 신호로 변환하여 마이컴(7)으로 출력한다. 그후, 상기 마이컴(7)은 자체에 미리 설정된 압력 및 온도에 대한 기준신호와 현재 입력되고 있는 난방환수의 온도 및 입력신호와 비교하여 마이콤(7)에 미리 설정되어 있는 온도 및 압력보다 클 경우에는 작동시키고, 기준신호보다 낮을 경우에는 순환펌프(1)를 차단하여 제어신호를 출력하여 순환펌프(1)를 난방환수의 온도와 압력을 제어한다. 상기 설명에 있어서 난방환수의 온도에 따른 수압의 세기는 아래의 표 1과 같다As such, the temperature and pressure data of the heating return detected by the temperature sensor 4 and the pressure sensor 3 are applied to the analog-to-digital conversion circuit 6 through the lines 5b and 5a in analog form. The digital conversion circuit 6 converts the digital signal into a digital signal and outputs it to the microcomputer 7. Thereafter, the microcomputer 7 compares the reference signal for the pre-set pressure and temperature with the temperature and the input signal of the heating return currently being input, when the microcomputer 7 is larger than the preset temperature and pressure for the microcomputer 7. In operation, when the reference signal is lower than the reference signal, the circulation pump 1 is cut off to output a control signal to control the temperature and pressure of the heating return water. In the above description, the strength of the water pressure according to the temperature of the heating return is shown in Table 1 below.
[표 1]TABLE 1
따라서, 상기 마이컴(7)은 순환펌프(1)에 제어신호를 출력하였을 때, 예를들면, 제3도에 도시된 바와같이 스텝S1에서 온도센서(4)에 의해 검출한 입력관(2)내의 난방환수의 수온(T)이 110℃보다 높은지 여부를 판별하여 난방환수의 수온(T)이 110℃보다 높은 경우(yes일 경우)에는 스텝S2로 나아가서 압력센서(3)에 의해 검출한 입력관(2)내의 난방환수의 압력(P)이 1.08bar이상인지 여부를 판별하여, 난방환수의 압력(P)이 1,08bar이상일 경우(yes일 경우)에는 스텝S7로 나아가서 순환펌프(1)를 구동시키는 제어신호를 마이컴(7)에서 출력하여 순환펌프(1)를 구동시켜서 난방환수를 순환시킨다.Therefore, when the microcomputer 7 outputs a control signal to the circulation pump 1, for example, the input tube 2 detected by the temperature sensor 4 in step S1 as shown in FIG. It is determined whether or not the water temperature T of the heating return water is higher than 110 ° C., and if the water temperature T of the heating return water is higher than 110 ° C. (if yes), the flow proceeds to step S2 and the input detected by the pressure sensor 3 is determined. It is determined whether the pressure P of the heating return in the pipe 2 is 1.08 bar or more, and if the pressure P of the heating return is 1,08 bar or more (yes), the flow proceeds to step S7 and the circulation pump (1). The control signal to drive the output from the microcomputer (7) to drive the circulation pump 1 to circulate the heating return.
한편, 상기 스텝S2에서 압력센서(3)에 의해 검출된 입력관(2)대의 압력(P)이 108bar이하일 경우(No일 경우)에는 스텝S8로 나아가서 마이컴(7)에서 출력되는 순환펌프(1)를 구동하는 제어신호를 차단하고 스텝S9로 나아가서 고장모드를 표시함과 동시에, 순환펌프(1)의 구동을 정지시킨다.On the other hand, when the pressure P of the input pipe 2 detected by the pressure sensor 3 in step S2 is 108 bar or less (No), the flow proceeds to step S8 and the circulation pump 1 output from the microcomputer 7. ), The control signal for driving < RTI ID = 0.0 > 1) < / RTI >
또한, 상기 스텝S1에서 입력관(2)의 온도(T)가 110℃이하일 경우에는 스템S3로 나아가서 입력관(2)내의 온도(T)가 90℃이상인지 여부를 판별하여, 90℃이상일 경우(yes일 경우)에는 스텝S4로 나아가서 압력센서(3)에 의해 검출한 입력관(2)내의 압력(P)이 0.392bar이상인지 여부를 판별해서 입력간(2)내의 압력(P)이 0.392bar이상일 경우에는 스텝S7로 나아가서 순환펌프(1)를 구동시키는 제어신호를 마이컴(7)에 출력하여 순환펌프(1)를 구동시켜서 난방환수를 순환시킨다.When the temperature T of the input tube 2 is 110 ° C. or lower in step S1, the flow advances to the stem S3 to determine whether the temperature T in the input tube 2 is 90 ° C. or higher, and when it is 90 ° C. or higher. (YES), the flow proceeds to step S4 to determine whether the pressure P in the input pipe 2 detected by the pressure sensor 3 is 0.392 bar or more, and the pressure P in the input 2 is 0.392. If it is more than bar, the flow proceeds to step S7 to output a control signal for driving the circulation pump 1 to the microcomputer 7 to drive the circulation pump 1 to circulate the heating return.
한편, 스텝S3에서 입력관(2)내의 온도(T)가 90℃이하일 경우(No일 경우)에는 스텝S5로 나아가서 온도센서(4)에 의해 검출된 입력관(2)내의 온도(T)가 75℃이상인지 여부를 판별하여 75℃이상이 아닐 경우(No일 경우)에는 스텝S1에서 복귀하여 스텝S1이하의 동작을 반복해서 행하고, 스템S5에서 입력관(2)내의 온도(T)가 75℃이상일 경우(yes일 경우)에는 스텝S6으로 나아가서 입력관(2)내의 압력(P)이 0.049bar이상인지 여부를 판별하여, 이상일 경우(yes일 경우)에는 스템S7로 나아가서 마이컴(7)에서 순환펌프(1)에 제어신호를 출력하여 순환펌프(1)를 구동하여 난방환수를 순환시킨다.On the other hand, when the temperature T in the input tube 2 is 90 degrees C or less (No) in step S3, it progresses to step S5 and the temperature T in the input tube 2 detected by the temperature sensor 4 If it is determined that the temperature is 75 ° C or higher, and if it is not 75 ° C or higher (No), the process returns to step S1 to repeat the operation of step S1 or lower, and the temperature T in the input tube 2 is 75 at stem S5. If it is higher than or equal to C (if yes), the process proceeds to step S6 to determine whether or not the pressure P in the input pipe 2 is 0.049 bar or more, and if abnormal, if yes, proceeds to the stem S7 and the microcomputer 7 The control signal is output to the circulation pump 1 to drive the circulation pump 1 to circulate the heating return.
상기 스텝S4에서 압력센서(3)에 의해 검출한 입력관(2)내의 압력(P)이 0. 392bar이하 및 스텝S6에서 압력센서(3)에 의해 검출한 입력관(2)내의 압력(P)이 0. 049bar이하일 경우에는 스텝S8로 복귀하여 스텝S8이하의 동작을 반복해서 행한다.Pressure P in the input tube 2 detected by the pressure sensor 3 in step S4 is 0.392 bar or less and pressure P in the input tube 2 detected by the pressure sensor 3 in step S6. ) Is 0.049 bar or less, the process returns to step S8 to repeat the operation of step S8 or less.
상기 표1에 정해놓은 수치는 고정된 것이 아니며 보일러의 용량에 따라 그에 맞게 조정될 수 있는바, 이는 마이컴(7)에 구성되는 프로그램을 변경함으로써 가능한 것은 물론이다.The numerical value set in Table 1 is not fixed and can be adjusted according to the capacity of the boiler, which is, of course, possible by changing the program configured in the microcomputer 7.
이와 같이 본 발명은 순환되는 난방환수와 수온과 압력에 따라 순환펌프의 동작을 적절히 제어함으로써 난방환수의 수압이 그때의 물의 증기압보다 낮아짐으로써 부분적으로 증기가 발생하게 될 때 나타나는 캐비테이션에 의한 소음을 제거할 수 있은 뿐만 아니라 순환장치내에 흐르는 난방환수의 부족으로 순환펌프가공 회전하게 될 때 그 펌프내의 베어링이 훼손되는 것을 방지할 수 있는 효과가 있는 것이다.As described above, the present invention eliminates noise caused by cavitation, which occurs when steam is partially generated by controlling the operation of the circulating pump according to the circulating heating return and the water temperature and pressure. Not only can it be done, but when the circulation pump is rotated due to the lack of heating return flowing in the circulation device, the bearing in the pump can be prevented from being damaged.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920000420A KR950005848B1 (en) | 1992-01-14 | 1992-01-14 | Safety apparatus of boiler circulation pump |
| JP5002529A JPH05248646A (en) | 1992-01-14 | 1993-01-11 | Protective device for boiler circulation pump |
| DE4300560A DE4300560A1 (en) | 1992-01-14 | 1993-01-12 | Control for hot water circulating pump - has sensors for input temperature and input pressure to pump and with microprocessor control to prevent cavitation |
| ITRM930014A IT1261740B (en) | 1992-01-14 | 1993-01-13 | CIRCULATION PUMP PROTECTION DEVICE IN A BOILER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920000420A KR950005848B1 (en) | 1992-01-14 | 1992-01-14 | Safety apparatus of boiler circulation pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930016670A KR930016670A (en) | 1993-08-26 |
| KR950005848B1 true KR950005848B1 (en) | 1995-05-31 |
Family
ID=19327844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920000420A KR950005848B1 (en) | 1992-01-14 | 1992-01-14 | Safety apparatus of boiler circulation pump |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH05248646A (en) |
| KR (1) | KR950005848B1 (en) |
| DE (1) | DE4300560A1 (en) |
| IT (1) | IT1261740B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9415089U1 (en) * | 1994-09-17 | 1996-02-01 | Robert Bosch Gmbh, 70469 Stuttgart | Central heating system |
| EP0863278B1 (en) * | 1997-03-05 | 2004-03-03 | Plasteral, S.A. | System for controlling pump operation |
| EP0943805B1 (en) * | 1998-03-19 | 2004-12-15 | NSB Gas Processing AG | Process and sensor for cavitation detection as well as a device comprising such sensor |
| DE19854383A1 (en) * | 1998-11-25 | 2000-05-31 | Asea Brown Boveri | Process and system for avoiding cavitation in a pump that feeds saturated water |
| KR101902227B1 (en) * | 2016-12-27 | 2018-09-28 | 주식회사 경동나비엔 | Water supplement apparatus and water supplement method of closed type boiler |
| CN108571453B (en) * | 2018-04-11 | 2019-08-13 | 杭州志驱传动技术有限公司 | Adjust automatically control method is arranged in hot water control system of invariable pressure |
| CN111649382B (en) * | 2020-06-30 | 2023-12-19 | 山西大欣源科技有限公司 | Central heating control method and device |
| CN113623721A (en) * | 2021-08-10 | 2021-11-09 | 长春市云谷节能科技有限公司 | Supply and return water digital data processing system and method based on analog-to-digital conversion control |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4950501A (en) * | 1972-09-20 | 1974-05-16 | ||
| JPS6224681A (en) * | 1985-07-24 | 1987-02-02 | Nippon Telegr & Teleph Corp <Ntt> | Semiconductor laser |
-
1992
- 1992-01-14 KR KR1019920000420A patent/KR950005848B1/en not_active IP Right Cessation
-
1993
- 1993-01-11 JP JP5002529A patent/JPH05248646A/en active Pending
- 1993-01-12 DE DE4300560A patent/DE4300560A1/en not_active Ceased
- 1993-01-13 IT ITRM930014A patent/IT1261740B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| ITRM930014A0 (en) | 1993-01-13 |
| DE4300560A1 (en) | 1993-07-22 |
| IT1261740B (en) | 1996-06-03 |
| KR930016670A (en) | 1993-08-26 |
| ITRM930014A1 (en) | 1994-07-13 |
| JPH05248646A (en) | 1993-09-24 |
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