KR100424542B1 - freezing circuit saving power by re-heating construction - Google Patents
freezing circuit saving power by re-heating construction Download PDFInfo
- Publication number
- KR100424542B1 KR100424542B1 KR10-2002-0002211A KR20020002211A KR100424542B1 KR 100424542 B1 KR100424542 B1 KR 100424542B1 KR 20020002211 A KR20020002211 A KR 20020002211A KR 100424542 B1 KR100424542 B1 KR 100424542B1
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- condenser
- evaporator
- refrigerant
- refrigeration circuit
- high temperature
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Classifications
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02731—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one three-way valve
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02732—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way valves
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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
- F25B2500/00—Problems to be solved
- F25B2500/05—Cost reduction
Abstract
본 발명은 각종 공기조화기 및 에어컨, 냉장고 등에 쓰이는 냉동회로에 관한 것으로, 통상의 냉동회로에 있어서 그 응축기의 중간부를 3방향밸브에 의해 분기하고, 증발기에는 두개의 3방향밸브에 의해 별도의 리히팅 코일(Re-heating coil)을 연결하므로서,The present invention relates to a refrigeration circuit used in various air conditioners, air conditioners, refrigerators, etc. In a conventional refrigeration circuit, the middle part of the condenser is branched by a three-way valve, and the evaporator is separated by two three-way valves. By connecting the re-heating coil,
응축기에 장착된 3방향밸브에 의해 응축기를 통과하는 고온고압의 냉매가스의 흐름을 변경하여 고온고압의 냉매가스가 통과하는 리히팅코일(열교환기)을 통과하면서, 증발기 응축수의 제습 및 응결수의 수분제거를 할 수 있는 것이다.The three-way valve mounted on the condenser changes the flow of refrigerant gas at high temperature and high pressure through the condenser, and passes through the heating coil (heat exchanger) through which refrigerant gas at high temperature and high pressure passes. Water can be removed.
또한, 응축열을 이용한 냉동사이클만으로 종래의 전기 히터를 사용한 제습장치의 효과를 그대로 낼 수 있으면서도 종래의 전기 리히팅에 소모되는 전력만큼의 절전효과가 있는 것이다.In addition, while only the refrigeration cycle using the heat of condensation can achieve the effect of the dehumidifier using a conventional electric heater as it is, there is a power saving effect as much as the power consumed in conventional electric heating.
Description
본 발명은 각종 공기조화기 및 에어컨, 냉장고 등에 쓰이는 냉동회로에 관한 것으로, 더욱 상세하게는 응축기의 코일 중간부에 3방향밸브를 장착하여 응축기를 통과하는 고온고압의 냉매가스의 흐름을 변경하고, 고온고압의 냉매가스가 통과하는 리히팅코일(열교환기)를 설치하여, 증발기에서 열교환된 저온다습의 공기가 송풍팬에 의해 고온고압의 리히팅 코일(열교환기)를 통과하면서 증발기 응축수의 제습 및 응결수의 수분을 제거하는 것이며, 종래의 전기 히터에 사용되는 소모전력의 감소효과로 절전효율이 뛰어난 냉동회로에 관한 것이다.The present invention relates to a refrigeration circuit used in various air conditioners, air conditioners, refrigerators, etc. More specifically, by mounting a three-way valve in the middle of the coil of the condenser to change the flow of refrigerant gas of high temperature and high pressure passing through the condenser, By installing a heating coil (heat exchanger) through which high-temperature and high-pressure refrigerant gas passes, dehumidification of evaporator condensate while the low-temperature and high-humidity air heat-exchanged in the evaporator passes through the high-temperature and high-pressure heating coil (heat exchanger) by a blower fan. The present invention relates to a refrigeration circuit having excellent power saving efficiency by removing moisture from condensed water and reducing power consumption used in a conventional electric heater.
냉동회로는 각종 냉동장치 및 공기조화기는 물론 일반가정에서 널리 씌이는 에어컨이나 냉장고 등에 사용되는 냉기 또는 냉풍발생 회로이다.The refrigeration circuit is a cold or cold air generating circuit used in air conditioners or refrigerators widely used in general homes as well as various refrigeration apparatus and air conditioners.
이러한 냉동회로는 크게 압축기 및 응축기, 팽창밸브, 증발기로 구성되어 있는 것으로서, 압축기에 의해 고압으로 압축된 냉매는 응축기를 통과하면서 고온, 고압의 냉매액으로 액화되어 팽창밸브로 유입된 고온고압의 냉매액을 교축작용을 한 저온저압의 냉매는 증발기로 유입되고 증발기에서는 증발잠열로 증발기(열교환기)를 통과하는 피냉각물체인 공기를 냉각시키는 것이다.The refrigeration circuit is mainly composed of a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant compressed to high pressure by the compressor is liquefied into a high temperature and high pressure refrigerant liquid while passing through the condenser, and the high temperature and high pressure refrigerant flowed into the expansion valve. The low-temperature low-pressure refrigerant throttling the liquid flows into the evaporator, and the evaporator cools the air to be cooled through the evaporator (heat exchanger) with latent heat of evaporation.
따라서, 증발기에 장착된 송풍팬에 의해 저온의 공기를 외부로 송출하므로서, 냉기 또는 저온의 공기가 실내로 제공되는 것이다.Therefore, by sending a cold air to the outside by the blowing fan mounted on the evaporator, the cold or cold air is provided to the room.
그러나, 전기한 증발기에서의 증발과정에서 증발기의 유체관 및 다수의 핀에는 응축수가 발생하게 되므로 일정시간마다 그 응축수를 제습하거나 응결된 상태의 응축수를 제거하여야 보다 효율적인 작동이 가능하므로 종래에는 별도의 히터장치를 장착하여 그 히터장치에 의해 증발기 내부에 발생한 응축수 및 응결수를 제습 및 제거하였다.However, since the condensed water is generated in the fluid pipe and the plurality of fins of the evaporator during the evaporation process in the above-described evaporator, a more efficient operation is possible only by dehumidifying the condensed water or removing condensed water in a condensed state every time. A heater device was mounted to dehumidify and remove condensed water and condensed water generated inside the evaporator by the heater device.
그러나, 전기한 바와 같은 통상의 응축수 제습방법은 별도의 히터장치에 전원을 인가하여 고온의 열기에 의해 응축수를 제습하는 것으로, 이에 따른 전력 소모가 매우 심하여 소비전력이 매우 심한 문제점이 있는 것이며, 저온상태의 증발기 내부에 갑자기 고온의 히터장치가 작동하므로 금속재의 증발기 내부에 각종 부식 및 열변형이 발생하여 그 사용수명을 단축하는 문제점이 있는 것이다.However, the conventional condensate dehumidification method as described above is to dehumidify the condensate by heating the high temperature by applying power to a separate heater device, the power consumption is so severe that the power consumption is very serious, there is a low temperature Since a sudden high temperature heater device operates inside the evaporator in a state, various corrosion and heat deformations occur inside the evaporator of the metal material, thereby shortening its service life.
본 발명은 전기한 바와 같은 문제점을 제거코자 안출된 것으로서, 통상의 냉동회로에 있어서 그 응축기의 중간부를 3방향밸브에 의해 분기하고, 팽창밸브 전에는 두개의 3방향밸브에 의해 별도의 리히팅 코일(Re-heating coil;열교환기)을 내장하므로서,The present invention has been made to eliminate the above problems, and in the conventional refrigeration circuit, the middle part of the condenser is branched by a three-way valve, and before the expansion valve, a separate heating coil ( Built-in re-heating coil (heat exchanger),
응축기에 장착된 3방향밸브에 의해 응축기를 통과하는 고온고압의 냉매가스의 흐름을 변경하여 고온고압의 냉매가스가 통과하는 리히팅코일(열교환기)을 통과하면서, 증발기 응축수의 제습 및 응결수의 수분제거를 할 수 있는 것이다.The three-way valve mounted on the condenser changes the flow of refrigerant gas at high temperature and high pressure through the condenser, and passes through the heating coil (heat exchanger) through which refrigerant gas at high temperature and high pressure passes. Water can be removed.
또한, 응축열을 이용한 냉동사이클만으로 종래의 전기 히터를 사용한 제습장치의 효과를 그대로 낼 수 있으면서도 종래의 전기 리히팅에 소모되는 전력만큼의 절전효과가 있는 리히팅 구조에 의한 절전형 냉동회로를 제공함에 본 발명의 목적이 있는 것이다.In addition, the present invention provides a power-saving refrigeration circuit with a reheating structure that can save the effect of the dehumidification apparatus using a conventional electric heater by using only a refrigeration cycle using condensation heat as much as the power consumed by conventional electric heating. It is an object of the invention.
도 1은 본 발명에 따른 냉동회로의 전체구성도1 is an overall configuration of a refrigeration circuit according to the present invention
도 2는 본 발명에 따른 냉동회로의 냉풍발생시 흐름도2 is a flow chart when the cold wind occurs in the refrigeration circuit according to the present invention
도 3은 본 발명에 따른 냉동회로의 제습작용시 흐름도3 is a flow chart during the dehumidification of the refrigeration circuit according to the present invention
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 압축기 2 : 응축기1: compressor 2: condenser
3 : 팽창밸브 4 : 증발기3: expansion valve 4: evaporator
5,5' : 냉매유로 6 : 3방향밸브5,5 ': Refrigerant flow path 6: 3-way valve
7 : 연결유로 8,8' : 3방향밸브7: Connection flow path 8,8 ': 3-way valve
9 : 리히팅코일 10 : 송풍팬9: Richting Coil 10: Blowing Fan
이하, 본 발명의 바람직한 실시예를 설명한다.Hereinafter, preferred embodiments of the present invention will be described.
도 1은 본 발명 냉동회로를 보인 전체도이고, 도 2는 본 발명 냉동회로를 이용하여 냉풍이 제공되게 한 작동 흐름도이며, 도 3은 본 발명 냉동회로에 의해 제습작용을 내타낸 흐름도이다.1 is an overall view showing a refrigeration circuit of the present invention, Figure 2 is a flow chart showing the cold air is provided using the refrigeration circuit of the present invention, Figure 3 is a flow chart showing the dehumidification action by the refrigeration circuit of the present invention.
압축기(1)와, 응축기(2), 팽창밸브(3), 송풍팬(10)을 갖는 증발기(4)가 냉매유로(5)(5')에 의해 연결 구성된 통상의 냉동회로에 있어서,In the conventional refrigeration circuit, the compressor 1, the condenser 2, the expansion valve 3, and the evaporator 4 having the blower fan 10 are connected by the refrigerant passages 5 and 5 ',
응축기(2)의 중간부에 3방향밸브(6)를 장착하여 별도의 연결유로(7)에 의해 냉매유로(5)와 연결형성하고,A three-way valve 6 is attached to the middle of the condenser 2 to form a connection with the refrigerant passage 5 by a separate connection passage 7,
응축기(2)와 팽창밸브(3)를 연결한 냉매유로(5)의 팽창밸브(3) 측에는 두개의 3방향밸브(8)(8')을 연속 형성하여 별도의 리히팅코일(9) 양단부를 각각 연결하되,On the expansion valve (3) side of the refrigerant flow passage (5) connecting the condenser (2) and the expansion valve (3), two three-way valves (8) and (8 ') are continuously formed, both ends of separate heating coils (9). Connect each of them,
리히팅코일(9)의 중간부가 송풍팬(10)과 증발기(4)의 사이에 위치되게 구성한 것이다.The intermediate part of the heating coil 9 is configured to be positioned between the blowing fan 10 and the evaporator 4.
이상과 같은 구성에 의한 본 발명의 작용을 첨부도면에 의해 보다 상세히 설명하면 다음과 같다.Referring to the operation of the present invention by the above configuration in more detail by the accompanying drawings as follows.
본 발명 냉동유로는 3방향밸브의 개폐방향에 따라 냉매만이 발산되게 하거나, 증발기에 형성된 응축수 및 응결수를 제거하는 제습작용만이 작동되게 하므로서, 종래와 같이 제습을 목적으로 별도의 히터장치를 사용하거나 폐열을 흡입하여 이에 의해 제습하는 등의 기구적인 난해함이 전혀없음은 물론 별도의 전력을 필요로 하지 못하므로 에너지 효율이 매우 좋은 것이다.According to the present invention, the refrigerant flow path allows only the refrigerant to be diverted according to the opening and closing direction of the three-way valve, or only the dehumidification action of removing condensate and condensate formed in the evaporator is operated. There is no mechanical difficulty such as use or inhalation of waste heat and dehumidification, and thus energy efficiency is very good since it does not require a separate power.
이러한 본 발명 냉매유로의 작동과정 및 흐름을 살펴보면,Looking at the operation and flow of the refrigerant flow path of the present invention,
도 2의 도시와 같이 냉매가 토출되게 한 냉동기로 사용하는 경우에는,In the case of using the refrigerator as the refrigerant is discharged as shown in Figure 2,
응축기(2)의 중간부에 장착된 3방향밸브(6)를 조정하여 연결유로(7)가 폐변되게 하고, 응축기(2) 전체로 냉매가 흐르게 하면, 압축기(1)에 의해 냉매는 고압, 고온의 상태로 냉매유로(5)를 따라 흐르게 된다.If the connecting flow path 7 is closed by adjusting the three-way valve 6 mounted at the middle of the condenser 2, and the refrigerant flows through the condenser 2, the refrigerant 1 is operated by the compressor 1, It flows along the refrigerant | coolant flow path 5 in the state of high temperature.
이러한 냉매의 상태는 고압에 의해 액화된 상태이며, 대략 30~35℃정도의 열을 갖고 있게 된다.The state of such a refrigerant is a state liquefied by high pressure, and has a heat of about 30 to 35 ℃.
이러한 상태에서 팽창밸브(3) 직전에 형성된 3방향밸브(8)(8')를 모두 팽창밸브(3) 측으로 일직선으로 개변하면 전기한 바와 같은 액체상의 냉매가 증발기(4) 내로 유입되는 것이다.In this state, if the three-way valves 8 and 8 'formed immediately before the expansion valve 3 are all straightened to the expansion valve 3 side, the liquid refrigerant as described above is introduced into the evaporator 4.
따라서, 팽창밸브(3) 및 증발기(4)에 의해 고압의 액상 냉매는 순간적으로 기화되면서 주변열을 신속하게 흡수하므로, 증발기(4) 주변에는 냉기가 형성됨은 물론 증발기(4)의 측부에 형성된 송풍팬(10)의 송출에 의해 냉기가 실내로 토출되는 것이다.Therefore, the high-pressure liquid refrigerant is rapidly vaporized by the expansion valve 3 and the evaporator 4 to quickly absorb the ambient heat, so that cold air is formed around the evaporator 4 as well as formed at the side of the evaporator 4. Cold air is discharged to the room by the blowing fan 10.
또한, 이렇게 기화된 냉매는 다시 압축기(1)에 의해 응축기(2)로 유입되어 액화되어 고온 고압의 상태로 순환하는 것이다.In addition, the vaporized refrigerant is introduced into the condenser 2 by the compressor 1 and liquefied to circulate in a state of high temperature and high pressure.
이러한 일련의 과정은 통상적인 냉동회로와 동일하다.This series of processes is the same as a conventional refrigeration circuit.
그러나, 도 3의 도시와 같이 증발기(4)에 형성된 응축수 및 응결수를 제거하고자 하는 경우에는 압축기(1)로부터 응축기(2)로 유입되면서 고온, 고압화되는 냉매가스는 그 응축기(2)의 중간부에 형성된 3방향밸브(6)가 연결유로(7) 측으로 개변됨에 따라 충분히 액화되지 않고 고온고압의 반액화상태로 냉매유로(5)를 따라 이동되는 것이다.However, when the condensed water and condensed water formed in the evaporator 4 are to be removed, as shown in FIG. 3, the refrigerant gas that is heated at a high temperature and high pressure while flowing from the compressor 1 into the condenser 2 is removed from the condenser 2. As the three-way valve (6) formed in the middle portion is changed to the connection flow path (7) side is not liquefied sufficiently, but is moved along the refrigerant flow path (5) in a semi-liquefied state of high temperature and high pressure.
이때의 냉매는 기체상태에 가까우며 대략 50~60℃의 온도를 유지하며 이동되는 것이다.At this time, the refrigerant is close to the gas state and is moved while maintaining a temperature of approximately 50 ~ 60 ℃.
이렇게 이동되는 냉매는 또다른 3방행밸브(8)(8')에 의해 팽창밸브(3) 측으로 바로 유입되는 것이 아니라 그 리히팅코일(9)로 유입되어 증발기(4) 내부에 위치한 리히팅코일(9) 측으로 이동되는 것이며, 고온의 냉매에 의해 리히팅코일(9)의 주변에는 고온의 열기가 발산되어 증발기(4) 후측의 송풍팬(10)에서 바람을 실내로 흡기 및 송출하여 이에 의해 고온의 열기를 증발기(4) 후측으로 내뿜게 되어 이에 의해 증발기(4)에 발생한 응축수 및 응결수를 리히팅코일(9)을 통과하는 고온의 열로 제습 및 제거하게 되는 것이다.The refrigerant moved in this way is not directly introduced into the expansion valve 3 by another three-way valve 8, 8 ′, but is introduced into the heating coil 9 and is located inside the evaporator 4. (9) is moved to the side, the high temperature heat is released around the heating coil (9) by the high-temperature refrigerant, the air is blown into the room by the blowing fan (10) behind the evaporator (4), thereby The hot air is emitted to the rear side of the evaporator 4, thereby dehumidifying and removing the condensed water and the condensed water generated in the evaporator 4 by the high temperature heat passing through the riching coil 9.
이렇게 고온의 리히팅코일(9)에 의해 고온의 열기를 형성한 다음 다시 리히팅코일(9)을 순환한 냉매는 다시 팽창밸브(3)로 유입됨과 동시에 증발기(4) 내부로 진입하며 기화되어 전기한 냉매작용보다는 저온상태의 냉기를 발산하게 되는 것이다.Thus, after forming the hot air by the high temperature of the heating coil 9, the refrigerant circulated again through the heating coil 9 flows into the expansion valve 3 and enters the evaporator 4 and vaporizes. Rather than the refrigerant action described above, it will emit cold air in a low temperature state.
따라서, 간헐적으로 작동하는 제습작용에 의해 증발기(4) 내부의 충분한 제습효과를 갖게 되는 것이며, 기존의 냉동효과 역시 충분하게 작동되게 할 수 있는 것이다.Therefore, by the intermittent dehumidification action is to have a sufficient dehumidification effect inside the evaporator (4), the existing refrigeration effect can also be made to operate sufficiently.
또한, 종래에 비해 보다 저전력의 전원으로도 충분한 냉동효과는 물론 해당전원만으로도 제습작용을 동시에 할 수 있으므로 보다 간단한 구성에 의한 원가절감 및 생산성 효율이 향상됨은 물론 소비전력을 현저히 감축시키므로 소비자에게 보다 이로운 것이다.In addition, it is possible to reduce the power consumption and productivity by using a simpler configuration, and to reduce the power consumption significantly. will be.
이상과 같은 본 발명 리히팅 구조에 의한 절전형 냉동회로는 응축기에 장착된 3방향밸브에 의해 응축기를 통과하는 고온고압의 냉매가스의 흐름을 변경하여 고온고압의 냉매가스가 통과하는 리히팅코일(열교환기)을 통과하면서, 증발기 응축수의 제습 및 응결수의 수분제거를 할 수 있는 것이다.In the power saving type refrigeration circuit according to the present invention as described above, the three-way valve mounted on the condenser changes the flow of the refrigerant gas of the high temperature and high pressure passing through the condenser by heating the refrigerant gas of the high temperature and high pressure (heat exchange While passing through), it is possible to dehumidify the evaporator condensate and remove moisture from the condensate.
또한, 응축열을 이용한 냉동사이클만으로 종래의 전기 히터를 사용한 제습장치의 효과를 그대로 낼 수 있으면서도 종래의 전기 리히팅에 소모되는 전력만큼의 절전효과가 있는 것이다.In addition, while only the refrigeration cycle using the heat of condensation can achieve the effect of the dehumidifier using a conventional electric heater as it is, there is a power saving effect as much as the power consumed in conventional electric heating.
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