KR20010048816A - Control method of operating heat for airconditioner - Google Patents
Control method of operating heat for airconditioner Download PDFInfo
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- KR20010048816A KR20010048816A KR1019990053625A KR19990053625A KR20010048816A KR 20010048816 A KR20010048816 A KR 20010048816A KR 1019990053625 A KR1019990053625 A KR 1019990053625A KR 19990053625 A KR19990053625 A KR 19990053625A KR 20010048816 A KR20010048816 A KR 20010048816A
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- temperature
- outdoor
- heat exchanger
- air conditioner
- overload
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
Description
본 발명은 공기 조화기의 난방 제어 방법에 관한 것으로서, 특히 열펌프식 냉난방 장치에서 난방 작동시에 압축기의 압력이 과도하게 상승하는 것을 방지할 수 있도록 한 공기 조화기의 난방 작동시 제어 방법에 관한 것이다.The present invention relates to a heating control method for an air conditioner, and more particularly, to a control method for heating operation of an air conditioner to prevent an excessive rise in the pressure of the compressor during heating operation in a heat pump type air conditioner. will be.
통상 열펌프식 냉난방 공기 조화기는 증발기 및 응축기 등이 구비되어 냉방 장치로 사용할 수 있는 동시에 냉동 사이클의 냉매 흐름을 반대로 하여 난방 장치로도 사용할 수 있도록 이루어진 장치이다.In general, a heat pump air-conditioning air conditioner is provided with an evaporator, a condenser, etc., which can be used as a cooling device, and at the same time, a device configured to be used as a heating device by reversing the refrigerant flow of a refrigeration cycle.
도 1은 열펌프식 냉난방 장치가 개략적인 구성도이다.1 is a schematic configuration diagram of a heat pump type heating and cooling device.
먼저, 냉방 운전시에는 압축기(1)에서 토출된 냉매 가스가 사방 밸브(3)를 지나 실외열교환기(10)로 유입된 후, 팽창 밸브(5)를 거치면서 저온 저압의 냉매 상태로 변화되어 실내열교환기(6)로 유입된다. 그리고, 상기 실내열교환기(6)에서 증발된 냉매 가스는 실내 공기와 열교환된 후, 다시 사방 밸브(3)를 통해 상기 압축기(1)로 흡입되면서 연속적으로 순환하게 된다.First, during the cooling operation, the refrigerant gas discharged from the compressor 1 flows into the outdoor heat exchanger 10 through the four-way valve 3, and then changes to a low-temperature low-pressure refrigerant state through the expansion valve 5. It is introduced into the indoor heat exchanger (6). The refrigerant gas evaporated in the indoor heat exchanger (6) is continuously circulated while being exchanged with indoor air and then sucked back into the compressor (1) through the four-way valve (3).
다음, 난방 운전시에는 상기 압축기(1)에서 토출된 냉매 가스가 사방 밸브(3)를 거쳐 실내열교환기(6)로 지나면서 응축되어 실내 공기와 열교환되고, 이후 냉매는 팽창 밸브(5)를 지나면서 저온 저압의 냉매 상태로 변화되어 실외열교환기(10)를 지나면서 증발된다. 이렇게 증발된 냉매 가스는 사방 밸브(3)를 거쳐 압축기(1)로 흡입되면서 순환하게 된다.Next, during the heating operation, the refrigerant gas discharged from the compressor 1 is condensed as it passes through the four-way valve 3 to the indoor heat exchanger 6 to exchange heat with the indoor air, and the refrigerant thereafter opens the expansion valve 5. As it passes through the outdoor heat exchanger 10 is changed to a low temperature low pressure refrigerant state. The refrigerant gas thus evaporated is circulated while being sucked into the compressor 1 via the four-way valve 3.
이와 같이 작동되는 열펌프식 냉난방 장치는 실내열교환기(6)와 실외열교환기(10)측에 실내팬(7)과 실외팬(11)이 각각 설치된다.In the heat pump type air-conditioning device operated as described above, an indoor fan 7 and an outdoor fan 11 are respectively installed on the indoor heat exchanger 6 and the outdoor heat exchanger 10 side.
또한, 상기 실외열교환기(10)측에는 열교환기를 통과하는 냉매의 온도를 감지하는 배관온도센서(15)가 설치되고, 상기 압축기(1)의 출구측에는 압축기의 과부하 상태를 판단하여 상기 실외팬(11)을 온/오프시킬 수 있도록 고압 스위치(4)가 설치된다.In addition, a pipe temperature sensor 15 for detecting the temperature of the refrigerant passing through the heat exchanger is installed on the outdoor heat exchanger 10 side, and the outdoor fan 11 by determining the overload state of the compressor on the outlet side of the compressor 1. The high pressure switch 4 is installed to turn on / off.
즉, 초봄이나 늦가을 등 실외 온도가 상대적으로 높을 때 난방 운전을 실시하게 되면 실외열교환기(10)를 통과하는 냉매의 온도도 그만큼 상승하게 되고, 온도가 상승된 냉매가 그대로 압축기(1)에 유입될 경우 압축기(1)에 과부하를 발생시키게 된다. 따라서, 상기 고압 스위치(4)가 압축기(1)의 토출측 압력을 감지하여 냉매의 압력이 일정 압력 이상이 되는 과부하 발생시에 실외팬(11)을 정지시킨다.That is, when the heating operation is performed when the outdoor temperature is relatively high, such as early spring or late autumn, the temperature of the refrigerant passing through the outdoor heat exchanger 10 also increases by that amount, and the refrigerant having the elevated temperature flows into the compressor 1 as it is. If so, the compressor 1 will be overloaded. Accordingly, the high pressure switch 4 senses the pressure on the discharge side of the compressor 1 to stop the outdoor fan 11 when an overload occurs when the pressure of the refrigerant is equal to or higher than a predetermined pressure.
이와 같이 실외팬(11)이 정지되면 실외열교환기(10)의 열교환 효율이 떨어짐에 따라 냉매의 온도 및 압력도 낮아지게 되어 압축기(1)가 고온 고압으로 과부하되는 것을 방지할 수 있게 된다.When the outdoor fan 11 is stopped as described above, as the heat exchange efficiency of the outdoor heat exchanger 10 decreases, the temperature and pressure of the refrigerant also decrease, thereby preventing the compressor 1 from being overloaded with high temperature and high pressure.
그러나, 상기한 바와 같은 종래 공기 조화기의 과부하 해소 방법은 별도의 고압 스위치(4)가 구비되어 실외팬(11)을 온/오프 작동시키도록 구성되어 있기 때문에 장치의 구성이 복잡해지는 문제점이 있다.However, the overload release method of the conventional air conditioner as described above is provided with a separate high-pressure switch (4) is configured to operate the outdoor fan 11 on / off, there is a problem that the configuration of the device is complicated. .
또한, 상기한 종래 기술은 압축기(1)의 토출 측 압력 상태만을 감지하여 과부하 해소 운전을 실시하도록 구성되어 있기 때문에 실외 온도 변화에 따라 보다 정확한 과부하 해소 운전을 실시할 수 없는 문제점도 있다.In addition, the above-described prior art is configured to perform the overload release operation only by detecting only the discharge side pressure state of the compressor 1, and thus there is a problem that a more accurate overload release operation cannot be performed according to the outdoor temperature change.
본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 실외열교환기의 배관 온도를 감지하여 과부하 해소 운전을 실시함으로써 고압 스위치 등의 별도의 추가 부품 없이 과부하 해소 운전을 용이하게 실시할 수 있는 공기 조화기의 난방 작동시 제어 방법을 제공하는 데 목적이 있다.The present invention has been made in order to solve the above problems, by detecting the pipe temperature of the outdoor heat exchanger to perform the overload cancellation operation air conditioning that can easily perform the overload resolution operation without additional components such as a high-pressure switch It is an object to provide a control method in the heating operation of the machine.
또한, 본 발명은 실외 온도에 따라 과부하 해소 운전 온도를 변화시킴으로써 보다 정확하고 효율적인 과부하 해소 운전을 실시할 수 있는 공기 조화기의 난방 작동시 제어 방법을 제공하는 데 있다.7In addition, the present invention provides a control method for heating operation of an air conditioner capable of performing a more accurate and efficient overload elimination operation by changing the overload elimination operation temperature according to the outdoor temperature.
도 1은 종래 기술에 따른 공기 조화기의 냉난방 장치가 도시된 구성도,1 is a block diagram showing a heating and cooling device of the air conditioner according to the prior art,
도 2는 본 발명에 따른 공기 조화기의 냉난방 장치가 도시된 구성도,Figure 2 is a block diagram showing a heating and cooling device of the air conditioner according to the present invention,
도 3은 본 발명에 따른 공기 조화기의 난방 작동시 과부하 해소 제어 방법이 도시된 순서도,3 is a flowchart illustrating a method for controlling overload during heating operation of an air conditioner according to the present invention;
도 4는 본 발명에서 외부 온도변화에 따른 과부하 해소 운전 온도가 도시된 그래프이다.Figure 4 is a graph showing the overload relief operation temperature according to the external temperature change in the present invention.
〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
50 : 압축기 55 : 사방 밸브50: compressor 55: four-way valve
57 : 팽창 밸브 60 : 실내기57: expansion valve 60: indoor unit
61 : 실내열교환기 62 ; 실내팬61: indoor heat exchanger 62; Indoor fan
70 : 실외기 71 : 실외열교환기70: outdoor unit 71: outdoor heat exchanger
72 : 실외팬 73 : 배관온도 감지센서72: outdoor fan 73: pipe temperature sensor
75 : 실외온도 감지센서75: outdoor temperature sensor
상기한 과제를 실현하기 위한 본 발명에 따른 공기 조화기의 난방 작동시 제어 방법은, 난방 운전 중에 실외열교환기의 배관 온도를 감지하는 단계와; 상기 배관 온도가 일정 온도(T2) 이상이면, 실외팬을 정지시켜 난방 과부하 해소 운전을 실시하는 단계와; 난방 과부하 해소 운전을 실시하면서 상기 배관 온도가 소정 온도(T1) 이하로 되면, 실외팬을 작동시켜 난방 과부하 해소 운전을 해제하는 단계를 포함한 것을 특징으로 한다.According to another aspect of the present invention, there is provided a control method of heating an air conditioner according to the present invention, the method comprising: sensing a pipe temperature of an outdoor heat exchanger during a heating operation; If the pipe temperature is equal to or greater than a predetermined temperature (T 2 ), stopping the outdoor fan to perform heating overload elimination operation; When the pipe temperature is less than a predetermined temperature (T 1 ) while the heating overload elimination operation is performed, operating the outdoor fan to release the heating overload elimination operation.
또한, 본 발명은 상기 실외팬 정지 온도(T2)와 실외팬 작동 온도(T1)는 실외 온도를 감지하여 실외온도가 상승하면 상대적으로 높게 설정되고, 실외 온도가 하강하면 상대적으로 낮게 설정되는 것을 특징으로 하여 가능하게 된다.In addition, the present invention, the outdoor fan stop temperature (T 2 ) and the outdoor fan operating temperature (T 1 ) is set to be relatively high when the outdoor temperature is increased by detecting the outdoor temperature, it is set relatively low when the outdoor temperature is lowered It is characterized by the above-mentioned.
이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
도 2는 본 발명에 따른 공기 조화기의 냉난방 장치가 도시된 구성도이고, 도 3은 본 발명의 과부하 해소 제어 방법이 도시된 순서도이며, 도 4는 실외 온도 변화에 따른 과부하 해소 운전의 온도 설정 그래프이다.Figure 2 is a block diagram showing a heating and cooling device of the air conditioner according to the present invention, Figure 3 is a flow chart showing the overload release control method of the present invention, Figure 4 is a temperature setting of the overload release operation according to the outdoor temperature change It is a graph.
본 발명의 공기 조화기는 도 2에 도시된 바와 같이 히트 펌프식 냉난방 장치로서, 실내기(60) 측에는 실내열교환기(61)와 실내팬(62)이 구비되어 실외기(70)측과 냉매 배관으로 연결된다.As shown in FIG. 2, the air conditioner of the present invention is a heat pump type air-conditioning apparatus, and an indoor heat exchanger 61 and an indoor fan 62 are provided at the indoor unit 60 to connect the outdoor unit 70 to the refrigerant pipe. do.
상기 실외기(70) 측에는 압축기(50), 사방 밸브(55), 팽창 밸브(57), 그리고 실외열교환기(71) 및 실외팬(72)이 구비된다.The outdoor unit 70 is provided with a compressor 50, a four-way valve 55, an expansion valve 57, and an outdoor heat exchanger 71 and an outdoor fan 72.
상기 실외열교환기(71)에는 배관온도를 통과하는 냉매의 온도를 감지하는 배관온도 감지센서(73)가 설치되고, 실외기(70)에는 실외 온도를 감지하는 실외온도 감지센서(75)가 설치된다.The outdoor heat exchanger 71 is provided with a pipe temperature sensor 73 for detecting the temperature of the refrigerant passing through the pipe temperature, the outdoor unit 70 is provided with an outdoor temperature sensor 75 for detecting the outdoor temperature. .
여기서, 상기 압축기(50)의 토출측에는 종래 기술과 같이 별도의 압력 스위치(도 1에서 4)가 설치되지 않는다.Here, a separate pressure switch (4 in Figure 1) is not installed on the discharge side of the compressor 50 as in the prior art.
이와 같이 구성된 본 발명의 공기 조화기를 통해 난방 운전을 실시하게 되면, 압축기(50)에서 토출된 냉매 가스가 사방 밸브(55)를 거쳐 실내열교환기(61)를 지나면서 응축되어 실내 공기와 열교환되고, 이후 냉매는 팽창 밸브(57)를 지나면서 저온 저압의 냉매 상태로 변화되어 실외열교환기(71)를 지나면서 증발된다. 이렇게 증발된 냉매 가스는 다시 사방 밸브(55)를 거쳐 압축기(50)로 흡입되면서 순환하게 된다.When the heating operation is performed through the air conditioner of the present invention configured as described above, the refrigerant gas discharged from the compressor 50 is condensed while passing through the indoor heat exchanger 61 through the four-way valve 55 to exchange heat with the indoor air. After that, the refrigerant changes to a low temperature low pressure refrigerant state through the expansion valve 57 and evaporates through the outdoor heat exchanger 71. The refrigerant gas thus evaporated is circulated while being sucked into the compressor 50 through the four-way valve 55 again.
이와 같은 난방 운전 중 난방 과부하 해소 운전은 도 3에 도시된 바와 같이 먼저, 난방 운전 중에 상기 배관온도 감지센서(73)를 통해 실외열교환기(71)의 배관 온도를 감지한다.The heating overload elimination operation during the heating operation first detects the pipe temperature of the outdoor heat exchanger 71 through the pipe temperature sensor 73 during the heating operation, as shown in FIG. 3.
상기 배관온도 감지센서(73)에서 감지한 배관 온도가 일정 온도(T2) 이하이면 계속적으로 난방 운전을 실시하고, 배관 온도가 일정 온도(T2) 이상이면 제어부(미도시 됨)에서 압축기(50)는 계속 작동시킨 상태에서 상기 실외팬(72)을 정지시켜 난방 과부하 해소 운전을 실시하게 된다.If the pipe temperature detected by the pipe temperature sensor 73 is below a predetermined temperature (T 2 ) to continue heating operation, and if the pipe temperature is above a predetermined temperature (T 2 ) in the compressor (not shown) in the compressor ( 50) to stop the outdoor fan 72 in the continued operation to perform the heating overload elimination operation.
여기서, 상기 실외팬(72)을 정지시키는 배관 온도(T2)는 냉난방 운전시험 작동을 하면서 압축기(50) 측에 일정 압력 이상의 과부하가 발생하는 온도로 설정된다.Here, the pipe temperature T 2 for stopping the outdoor fan 72 is set to a temperature at which an overload of a predetermined pressure or more occurs on the compressor 50 side while performing an air conditioning operation test operation.
상기와 같이 난방 과부하 해소 운전이 실시되는 과정에서 상기 배관온도 감지센서(73)에서 감지한 배관 온도(T)가 소정 온도(T1) 이하로 되면, 실외팬(72)을 다시 작동시켜 난방 과부하 해소 운전을 해제하고 정상 난방 운전을 실시하게 된다.If the pipe temperature T detected by the pipe temperature sensor 73 in the process of eliminating the heating overload operation as described above becomes less than the predetermined temperature (T 1 ), the outdoor fan 72 is operated again to overload the heating. The release operation is canceled and normal heating operation is performed.
한편, 상기 실외팬 정지(OFF) 온도(T2)와 실외팬 작동(ON) 온도(T1)의 설정은 도 4에 도시된 바와 같이 상기 실외온도 감지센서(75)를 통해 실외 온도(t)를 감지하여 실외 온도(t)가 상승하면 상대적으로 높게 설정되고, 실외 온도(t)가 하강하면 상대적으로 낮게 설정된다.On the other hand, the setting of the outdoor fan OFF temperature (T 2 ) and the outdoor fan operating temperature (ON) (T 1 ) is the outdoor temperature (t) through the outdoor temperature sensor 75 as shown in FIG. ) Is set to be relatively high when the outdoor temperature (t) rises, and is set relatively low when the outdoor temperature (t) falls.
즉, 실외 온도(t)가 D 지점과 같이 높이지면 난방 과부하 해소 운전을 실시하는 실외팬(72) 정지 온도(D")도 그만큼 높아지고, 난방 과부하 해소 운전을 해제하는 실외팬(72) 작동 온도(D')도 높아지게 되는 것이다.That is, when the outdoor temperature t is increased as point D, the outdoor fan 72 stop temperature D ″ for performing the heating overload elimination operation is also higher, and the outdoor fan 72 operating temperature for releasing the heating overload elimination operation is increased. (D ') will also increase.
물론, 실외 온도(t)가 "A" 지점과 같이 낮아지면 실외팬(72) 정지 온도(A")도 그만큼 낮아지고, 실외팬(72) 작동 온도(A')도 낮아지게 되는 것이다.Of course, when the outdoor temperature t is lowered like the "A" point, the outdoor fan 72 stop temperature A "is also lowered, and the outdoor fan 72 operating temperature A 'is also lowered.
따라서, 실외온도(t) 변화에 따라 난방 과부하 해소 운전의 설정 온도(T1) (T2)를 다르게 함으로써 보다 효율적이고 정확한 난방 운전을 실시할 수 있게 된다.Therefore, by changing the set temperature T 1 (T 2 ) of the heating overload elimination operation according to the change of the outdoor temperature t, more efficient and accurate heating operation can be performed.
상기한 바와 같은 본 발명의 공기 조화기의 난방 작동시 제어 방법은 실외열교환기의 배관 온도를 감지하여 과부하 해소 운전을 실시함으로써 고압 스위치 등의 별도의 추가 부품 없이 과부하 해소 운전을 용이하게 실시할 수 있고, 실외 온도에 따라 과부하 해소 운전의 설정 온도를 변화시킴으로써 보다 정확하고 효율적인 과부하 해소 운전을 실시할 수 있는 이점이 있다.As described above, the control method for heating operation of the air conditioner of the present invention can easily perform the overload elimination operation without additional components such as a high pressure switch by performing the overload elimination operation by sensing the pipe temperature of the outdoor heat exchanger. In addition, there is an advantage that a more accurate and efficient overload elimination operation can be performed by changing the set temperature of the overload elimination operation according to the outdoor temperature.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990053625A KR20010048816A (en) | 1999-11-29 | 1999-11-29 | Control method of operating heat for airconditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990053625A KR20010048816A (en) | 1999-11-29 | 1999-11-29 | Control method of operating heat for airconditioner |
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| KR20010048816A true KR20010048816A (en) | 2001-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019990053625A KR20010048816A (en) | 1999-11-29 | 1999-11-29 | Control method of operating heat for airconditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353116A (en) * | 2011-07-27 | 2012-02-15 | 宁波奥克斯电气有限公司 | Explosion-proof control method of multi-connected air conditioning unit at runtime |
| CN104033996A (en) * | 2014-07-04 | 2014-09-10 | 珠海格力电器股份有限公司 | Air conditioner indoor unit running noise control method and system |
| CN110848898A (en) * | 2019-10-11 | 2020-02-28 | 珠海格力电器股份有限公司 | Control method for preventing air conditioner load conversion from stopping, computer readable storage medium and air conditioner |
| CN112556114A (en) * | 2020-12-01 | 2021-03-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
-
1999
- 1999-11-29 KR KR1019990053625A patent/KR20010048816A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353116A (en) * | 2011-07-27 | 2012-02-15 | 宁波奥克斯电气有限公司 | Explosion-proof control method of multi-connected air conditioning unit at runtime |
| CN104033996A (en) * | 2014-07-04 | 2014-09-10 | 珠海格力电器股份有限公司 | Air conditioner indoor unit running noise control method and system |
| CN104033996B (en) * | 2014-07-04 | 2016-09-14 | 珠海格力电器股份有限公司 | Indoor apparatus of air conditioner runs control method and the system of noise |
| CN110848898A (en) * | 2019-10-11 | 2020-02-28 | 珠海格力电器股份有限公司 | Control method for preventing air conditioner load conversion from stopping, computer readable storage medium and air conditioner |
| CN112556114A (en) * | 2020-12-01 | 2021-03-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
| CN112556114B (en) * | 2020-12-01 | 2021-11-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
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