KR19990038455A - Cycle structure and control method of heater - Google Patents
Cycle structure and control method of heater Download PDFInfo
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- KR19990038455A KR19990038455A KR1019970058182A KR19970058182A KR19990038455A KR 19990038455 A KR19990038455 A KR 19990038455A KR 1019970058182 A KR1019970058182 A KR 1019970058182A KR 19970058182 A KR19970058182 A KR 19970058182A KR 19990038455 A KR19990038455 A KR 19990038455A
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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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/06—Air heaters
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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
- F24F11/0008—Control or safety arrangements for air-humidification
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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
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/025—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using electrical heating means
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
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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
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
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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
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F24F2110/20—Humidity
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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
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
본 발명은 난방기의 사이클 구조 및 제어방법에 관한 것으로, 특히 난방운전시 실외온도가 저온으로 내려갈수록 증발압력이 낮아져서 압축기의 압축비가 상승하는 것을 방지하고, 제상운전시 제상운전시간을 단축시키며, 실내공기의 습도를 일정하게 유지하여 쾌적한 난방을 수행할 수 있는 난방사이클 구조를 제공하는데 목적이 있다.The present invention relates to a cycle structure and a control method of a heater, and in particular, as the outdoor temperature decreases to a low temperature during heating operation, the evaporation pressure is lowered to prevent the compression ratio of the compressor from increasing, and the defrosting operation time during the defrosting operation is shortened. It is an object of the present invention to provide a heating cycle structure capable of performing comfortable heating by maintaining a constant humidity of air.
이를 실현하기 위하여 본 발명은 압축기, 사방변, 실내기, 팽창변, 실외기가 마이콤에 의헤 제어되는 히트펌프사이클에 상기 실외기 온도를 온수와의 열교환을 통해 상승시키기 위한 온도상승수단으로, 온수를 저장하는 온수저장부와, 상기 온수저장부에 저장된 온수를 강제로 순환시키는 펌핑부와, 상기 펌핑부에 의해 펌핑되는 고온의 온수와 실외기 주변의 공기가 열교환이 이루어지도록 하는 열교환부을 구비하였다.In order to realize this, the present invention provides a hot water for storing hot water as a temperature raising means for raising the outdoor unit temperature through heat exchange with hot water in a heat pump cycle controlled by a microcomputer. A storage unit, a pumping unit forcibly circulating the hot water stored in the hot water storage unit, and a heat exchanger for heat exchange between the high temperature hot water pumped by the pumping unit and the air around the outdoor unit.
Description
본 발명은 난방기에 관한 것으로서, 특히 난방운전시 실외온도가 저온으로 내려감으로 인하여 발생되는 난방효율저하를 방지하고 쾌적한 실내공기를 유지하기 위한 난방기의 사이클구조 및 제어방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heater, and more particularly, to a cycle structure and a control method of a heater for preventing a decrease in heating efficiency caused by a decrease in outdoor temperature during heating operation and maintaining comfortable indoor air.
도 1은 종래 난방기의 운전시 흐름도를 나타낸 것으로써, 그 구성을 살펴보면, 냉매를 고온고압으로 압축하는 압축기(3)와, 상기 압축기(3)에서 압축되어 토출되는 냉매가 실내기(1)로 보내지도록 개폐되는 사방변(4)과, 상기 실내기(1)에서 응축되어 보내지는 냉매를 팽창하는 팽창변(6)과, 상기 팽창변(6)을 거친 저온의 냉매가 유입되는 실외기(2)로 구성되어 있다.1 is a flowchart illustrating a conventional heater operation. Referring to the configuration, the compressor 3 compresses the refrigerant at a high temperature and high pressure, and the refrigerant compressed and discharged from the compressor 3 is sent to the indoor unit 1. Four sides (4) which are opened and closed so as to be opened and closed, an expansion valve (6) for expanding the refrigerant condensed and sent from the indoor unit (1), and an outdoor unit (2) into which the low-temperature refrigerant passing through the expansion valve (6) is introduced. have.
도면중 미설명 부호 8 은 실내 토출팬, 9 는 실외측 토출팬을 나타낸다.In the figure, reference numeral 8 denotes an indoor discharge fan, and 9 denotes an outdoor discharge fan.
이러한 사이클을 갖는 난방기는 난방운전시 압축기(3)에서 압축되어 고온고압으로 압축된 냉매가 토출되어 사방변(4)을 통해 실내기(1)로 유입된후 고압의 과냉액으로 응축되어 지면서 45℃ 이상의 토출공기를 불어내어 실내를 난방하게 된다. 이 냉매는 다시 팽창변(6)으로 유입되어 저온저압의 냉매로 팽창되어진 후 실외기(2)로 유입되어 주위의 열을 흡수하게 되는데 이때, 실외온도보다는 실외기의 냉매온도가 낮아야 증발을 하여 저온의 가스상태로 된다. 증발된 냉매는 사방변(4)을 거쳐서 압축기(3)로 흡입되어 고온의 토출가스로 변화한다.The heater having such a cycle is compressed by the compressor (3) during heating operation to discharge the refrigerant compressed at high temperature and high pressure, flows into the indoor unit (1) through the four sides (4), and condenses into a high-pressure supercooling liquid at 45 ° C. The above discharged air is blown to heat the room. The refrigerant flows back into the expansion valve 6 and expands into a low-temperature low-pressure refrigerant, and then flows into the outdoor unit 2 to absorb ambient heat. At this time, the refrigerant temperature of the outdoor unit is lower than the outdoor temperature to evaporate to reduce the temperature of the low-temperature gas. It is in a state. The evaporated refrigerant is sucked into the compressor (3) via the four sides (4) to change into a high-temperature discharge gas.
제상운전시는 상기와 반대의 냉방사이클로 운전을 하게된다.In the defrosting operation, the operation is performed in the opposite cooling cycle.
상기 사이클구조에 있어서 실외기에서는 실외온도보다 실외기 냉매의 온도가 낮아야 열교환이 일어나 증발이 되는데, 실외온도가 -10℃ 이하로 낮아지면 냉매의 온도는 최소한 -12℃ 이하로 떨어져야 되며 동시에 증발압력이 낮아지게 된다.In the cycle structure, heat exchange occurs when the outdoor unit refrigerant temperature is lower than the outdoor temperature in the outdoor unit to evaporate. When the outdoor temperature is lower than -10 ° C, the temperature of the refrigerant must be lowered at least -12 ° C or lower and at the same time the evaporation pressure is low. You lose.
그러나 실내기 토출온도를 유지하면서 실외열교환을 위해 증발압을 낮추면 압축기의 압축비가 상승하게 되어 압축기에 무리가 따르게 되고 궁극적으로 사이클이 불균형을 이루게 되어 토출온도의 저하 및 난방성능이 저하되는 문제점이 있었다.However, if the evaporation pressure is lowered for outdoor heat exchange while maintaining the indoor unit discharge temperature, the compression ratio of the compressor is increased, which leads to the compressor, and ultimately, the cycle is imbalanced, thereby lowering the discharge temperature and lowering the heating performance.
본 발명은 상기한 바와같은 종래 기술의 문제점을 해결하기 위하여 발명된 것으로 압축기, 사방변, 실내기, 팽창변, 실외기가 마이콤에 의헤 제어되는 히트펌프사이클에 상기 실외기 온도를 온수와의 열교환을 통해 상승시키기 위한 온도상승장치를 추가로 구비함으로서, 난방운전시 실외온도가 저온으로 내려감으로 인한 압축비 상승을 방지하고 제상운전시 제상운전시간을 단축하는등 난방사이클의 효율을 향상시킬 수 있도록 하는데 목적이 있다.The present invention has been invented to solve the problems of the prior art as described above to increase the outdoor unit temperature by heat exchange with hot water in a heat pump cycle controlled by the microcomputer compressor, four-sided, indoor unit, expansion valve, outdoor unit By additionally providing a temperature increase device for the purpose, to improve the efficiency of the heating cycle, such as to prevent the increase in the compression ratio due to the outdoor temperature is lowered to a low temperature during the heating operation and to shorten the defrosting operation time during the defrosting operation.
도 1 은 종래 히트펌프 사이클의 구조도.1 is a structural diagram of a conventional heat pump cycle.
도 2 는 본 발명에 의한 히트펌프 사이클의 구조도.2 is a structural diagram of a heat pump cycle according to the present invention.
*** 도면의 주요 부분에 대한 부호의 설명 ****** Explanation of symbols for the main parts of the drawing ***
101 : 실내기 102 : 실외기101: indoor unit 102: outdoor unit
103 : 압축기 104 : 사방변103: compressor 104: four sides
105 : 마이콤 106 : 팽창변105: micom 106: expansion valve
107 : 온수저장부 107': 히터107: hot water storage unit 107 ': heater
108 : 펌프 109 : 열교환기108: pump 109: heat exchanger
110 : 증기량조절변 111 : 습도센서110: steam control valve 111: humidity sensor
본 발명을 도 2를 참조하여 이하에서 상세히 설명한다.The present invention is described in detail below with reference to FIG.
먼저 본 발명의 구성을 살펴보면 압축기(103), 사방변(104), 실내기(101), 팽창변(106), 실외기(102)가 마이콤(105)에 의헤 제어되는 히트펌프사이클에는 상기 실외기(102)의 온도를 상승시키기 위하여 온수를 저장하는 온수저장부(107)와, 상기 온수저장부(107)에 저장된 온수를 강제로 순환시키는 펌핑부(108)와, 상기 펌핑부(108)에 의해 펌핑되는 고온의 온수와 실외기(103) 주변의 공기가 열교환이 이루어지도록 하는 열교환부(109)가 포함되었으며, 실내기측(101)에는 온수저장부(107)로부터 온수가열에 의해 발생된 증기가 실내기(101)로 토출되는 증기량을 조절하는 증기량조절변(110)이 구성되었다.First, referring to the configuration of the present invention, the compressor 103, the four-sided 104, the indoor unit 101, the expansion valve 106, the outdoor unit 102 is a heat pump cycle controlled by the microcomputer 105, the outdoor unit 102 In order to increase the temperature of the hot water storage unit 107 for storing the hot water, the pumping unit 108 for forcibly circulating the hot water stored in the hot water storage unit 107, and pumped by the pumping unit 108 A heat exchanger 109 is included to allow heat exchange between the high temperature hot water and the air around the outdoor unit 103, and the indoor unit 101 includes steam generated by hot water heating from the hot water storage unit 107. Steam amount control valve 110 for controlling the amount of steam discharged to the) was configured.
도면중 미설명 부호 111은 습도센서를 나타낸다.In the figure, reference numeral 111 denotes a humidity sensor.
본 발명 난방사이클의 작동원리는 종래와 동일하며, 난방운전시 실외온도(T1)가 내려가게 되면 실외기의 증발능력을 유지하기 위해 팽창을 잠궈서 냉매유량을 줄이고 증발온도와 압력을 낮추게 된다.The operating principle of the heating cycle of the present invention is the same as in the prior art, when the outdoor temperature (T1) during the heating operation is lowered to lock the expansion to maintain the evaporation capacity of the outdoor unit to reduce the refrigerant flow rate and lower the evaporation temperature and pressure.
그러나 일정이상 낮추게 되면 실내기(101)의 토출공기온도가 같이 낮아지게 되어 난방을 할수없게 된다. 따라서 실외온도(T1)가 일정온도 이상일 경우에 히터(107')가 온/오프를 계속하여 실내기 습도조절에 필요한 열량을 방출하게 되는데 일정온도 이하인 경우에는 히터(107')의 발열량이 증가하고, 펌프(108)가 작동하여 고온의 온수를 실외열교환기 주변으로 흐르게 된다.However, if the predetermined temperature is lowered, the discharge air temperature of the indoor unit 101 is lowered as well, thereby preventing heating. Therefore, when the outdoor temperature (T1) is above a certain temperature, the heater 107 'continues to turn on / off to emit heat required for controlling the humidity of the indoor unit. When the temperature is below a certain temperature, the heat generation amount of the heater 107' increases. Pump 108 is operated to flow hot water around the outdoor heat exchanger.
따라서 실외온도(T1)보다도 냉매가 통과하는 열교환기 주변의 온도(T3)가 높게 유지되어 냉매를 증발시키기 위해 온도 및 압력을 실외기준이 아닌 열교환기 주변온도(T3)를 기준으로 조절하면 되기 때문에 냉매는 실외온도의 강하에 영향을 받지않고 온도강하 이전의 상태에서 증발을 하게되고 실내기 토출온도도 유지된다.Therefore, the temperature (T3) around the heat exchanger through which the refrigerant passes is maintained higher than the outdoor temperature (T1), so that the temperature and pressure may be adjusted based on the heat exchanger ambient temperature (T3) instead of the outdoor standard to evaporate the refrigerant. The refrigerant is evaporated without being affected by the outdoor temperature drop and the indoor unit discharge temperature is maintained.
실내기 토출공기의 습도저절은 히터(107')가 작동하여 가열된 공기를 이용하게 되며, 요구습도에 따라 증기량 조절변(110)이 증기량을 조절하게 된다. 증기량 조절변(110)은 습도센서(111)에서 감지되는 습도를 인식하여 궤도를 조절하며 이 모든 신호는 마이콤(105)이 조절한다.The humidity control of the indoor unit discharge air is to use the heated air by operating the heater 107 ′, and the steam amount control valve 110 adjusts the amount of steam according to the required humidity. The steam amount control valve 110 adjusts the trajectory by recognizing the humidity detected by the humidity sensor 111 and all these signals are controlled by the microcomputer 105.
마이콤(105)은 T1,T2,T3 온도를 감지하여 압축기주파수(F), 팽창변(106), 펌프(108), 히터(107') 등을 제어하며 습도센서(111)를 감지하여 증기량조절변(110), 히터(107'), 펌프(108) 등을 제어한다.The microcomputer 105 senses the temperature T1, T2, T3 to control the compressor frequency (F), the expansion valve 106, the pump 108, the heater 107 'and the like and the humidity sensor 111 to detect the steam volume control valve 110, the heater 107 ′, the pump 108, and the like.
이상 설명한 바와같이 본 발명의 난방사이클 구조는 난방운전시 실외의 온도가 저온으로 떨어졌을 때 실외기 주변의 온도가 저하되어 실외기를 통과하는 냉매가 증발을 위한 열흡수가 어려워지는데, 이때 온수사이클이 작동하여 실외기 주변의 공기와 열교환을 함으로서, 실외기 주변의 온도가 상승하게 되어 결국 실외기내의 냉매의 증발효율이 상승되어 냉동사이클의 효율을 유지할 수 있게된다.As described above, in the heating cycle structure of the present invention, when the temperature of the outdoor unit drops to a low temperature during the heating operation, the temperature around the outdoor unit decreases, making it difficult to absorb heat for evaporation of the refrigerant passing through the outdoor unit. By exchanging heat with the air around the outdoor unit, the temperature around the outdoor unit is increased, and thus the evaporation efficiency of the refrigerant in the outdoor unit is increased, thereby maintaining the efficiency of the refrigeration cycle.
또한 실내기측의 실내공기가 건조해지는 것을 방지하여 쾌적한 실내공간을 구현할 수 있게되는 것이다.In addition, it is possible to implement a comfortable indoor space by preventing the indoor air of the indoor unit to dry.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970058182A KR100248718B1 (en) | 1997-11-05 | 1997-11-05 | Cycle structure of a heater and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019970058182A KR100248718B1 (en) | 1997-11-05 | 1997-11-05 | Cycle structure of a heater and control method thereof |
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| Publication Number | Publication Date |
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| KR19990038455A true KR19990038455A (en) | 1999-06-05 |
| KR100248718B1 KR100248718B1 (en) | 2000-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020084441A (en) * | 2001-05-02 | 2002-11-09 | 주식회사 센추리 | The system for suppling warm water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020084441A (en) * | 2001-05-02 | 2002-11-09 | 주식회사 센추리 | The system for suppling warm water |
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