KR100219910B1 - Absorption type air conditioner - Google Patents

Absorption type air conditioner Download PDF

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Publication number
KR100219910B1
KR100219910B1 KR1019960038256A KR19960038256A KR100219910B1 KR 100219910 B1 KR100219910 B1 KR 100219910B1 KR 1019960038256 A KR1019960038256 A KR 1019960038256A KR 19960038256 A KR19960038256 A KR 19960038256A KR 100219910 B1 KR100219910 B1 KR 100219910B1
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South Korea
Prior art keywords
temperature
cooling
evaporator
temperature regenerator
heating
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KR1019960038256A
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Korean (ko)
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KR970016406A (en
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가츠야 오오시마
시게루 요시무라
가오루 가와모토
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나이토 스스무
린나이가부시기가이샤
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Priority to JP95-228310 priority Critical
Priority to JP22831095 priority
Priority to JP7306123A priority patent/JP2994250B2/en
Priority to JP95-306123 priority
Application filed by 나이토 스스무, 린나이가부시기가이샤 filed Critical 나이토 스스무
Publication of KR970016406A publication Critical patent/KR970016406A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B15/00Sorption machines, plant, or systems, operating continuously, e.g. absorption type
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

Abstract

(과제) 회석운전시간을 단축할 수 있는 흡수식공조장치의 제공(Problem) Providing an absorption type air conditioner capable of shortening the operation time of the kaiseki
(해결수단) 가스버너(31)를 소화하여 냉방운전을 정지할 경우, 제어기(9)는, 고온재생기(3)의 온도가 130℃로 저하되기까지 송풍팬(211), 및 냉온수펌프(801)의 작동을 정지함과 아울러 용액펌프(802), 냉각탑팬(11), 및 냉각수펌프(14)의 작동을 계속하는 제 1 희석운전을 행하며, 130t로 저하되면 고온재생기(3)의 온도가 110℃로 저하되기까지 냉난방절환밸브(36)를 개방하여 제 2 회석운전을 행한다.The controller 9 controls the air blowing fan 211 and the cold / hot water pump 801 until the temperature of the high temperature regenerator 3 is lowered to 130 占 폚 when the gas burner 31 is extinguished and the cooling operation is stopped. The operation of the solution pump 802, the cooling tower fan 11 and the cooling water pump 14 is stopped. When the temperature of the high temperature regenerator 3 is lowered to 130 t, And the second cooling operation is performed by opening the cooling / heating switching valve 36 until the temperature is lowered to 110 deg.

Description

흡수식 공조장치Absorption type air conditioner
본 발명은, 흡수식 공조장치에 관한 것이다.The present invention relates to an absorption type air conditioning apparatus.
(종래의 기술)(Prior art)
실외열교환기, 흡수기전열관, 및 응축기전열관을 차례로 환형상으로 접속하여 이루어지며 냉각수펌프로 냉각수를 순환시키는 냉각수회로와, 실내열교환기, 증발기 전열관을 환형상으로 접속하여 이루어지며 냉수펌프로 냉수를 순환시키는 냉수회로와, 가열원에 의해 저농도흡수액중의 냉매를 기화시켜서 중농도흡수액과 증기냉매로 분리하는 고온재생기, 상기 고온재생기를 내포하며 상기 중농도 흡수액을 고농도 흡수액과 증기냉매로 분리하는 저온재생기, 상기 응축기전열관을 구비함과 아울러 각 재생기로부터 고온의 증기냉매가 공급되는 응축기, 상기 응축기에서 액화한 액화냉매를 감압하에서 증발시키는 증발기, 상기 증발기에 병설되며 상기 횹수기전열관을 구비하여 상기 증발기에서 증발한 증기냉매를 상기 저온재생기로부터 공급되는 고농도흡수액에 흡수시키는 흡수기, 및 상기 흡수기 내의 흡수액을 상기 고온재생기로 되돌리는 용액펌프를 가지는 흡수액회로와, 상기 냉각수펌프, 상기 냉수펌프, 상기 가열원 및 상기 용액펌프를 제어하는 제어기를 구비하며, 냉방운전을 정지할 때에, 상기 제어기가 상기 가열원 및 상기 냉수펌프의 작동을 정지하고 상기 용액펌프 및 냉각수펌프의 작동을 계속하여 희석운전을 행하는 흡수식 공조장치가 종래서부터 알려져 왔다.An outdoor heat exchanger, an absorber heat transfer pipe, and a condenser heat transfer pipe in the form of an annulus and circulating the cooling water through a cooling water pump; an indoor heat exchanger and an evaporator heat transfer pipe connected in an annular shape; Temperature regenerator for vaporizing the refrigerant in the low-concentration absorbent liquid by the heating source to separate the medium-absorbent liquid into the vapor-absorbing liquid and the vapor refrigerant; a low-temperature regenerator for separating the heavy- An evaporator for evaporating the liquefied refrigerant liquefied in the condenser at a reduced pressure, and an evaporator for evaporating the evaporated liquefied refrigerant in the evaporator, wherein the condenser has a condenser heat transfer tube and is supplied with high-temperature vapor refrigerant from each regenerator, The evaporated vapor refrigerant is supplied from the low-temperature regenerator And a controller for controlling the cooling water pump, the cold water pump, the heating source, and the solution pump, wherein the absorption liquid is supplied to the high-temperature regenerator through the absorber, An absorption type air conditioning apparatus has been known in which the controller stops the operation of the heating source and the cold water pump and continues the operation of the solution pump and the cooling water pump to perform the dilution operation when the cooling operation is stopped.
상기 회석운전은, 고온재생기내의 저농도흡수액의 온도를 저하(110℃이하)시키며, 또한 부분적으로 농축된 흡수액의 농도균일화를 이루기 위해 예를 들면 약 9분간 계속할 필요가 있다. 또한, 회석운전시간이 짧으면 잉여열에 의한 추후가열에 의해 중농도흡수액등이 농축되어 결정석출을 초래하게 된다.The above-mentioned confectionary operation is required to be continued for, for example, about 9 minutes to lower the temperature of the low-concentration absorbent in the high-temperature regenerator (110 DEG C or less) and to achieve concentration uniformity of the partially concentrated absorbent. In addition, if the time of the crystallization operation is short, the medium-concentration absorber or the like is concentrated by subsequent heating by excess heat, resulting in crystal precipitation.
상기 종래의 흡수식 공조장치는, 희석운전에 시간이 걸리기 때문에 이하의 해결과제를 갖는다.The conventional absorption type air conditioning apparatus has the following problems because the dilution operation takes time.
희석운전하는 동안은 냉방운전중과 동일한 정도의 전력이 소비된다.During the dilution operation, the same amount of power is consumed as during the cooling operation.
일단 운전정지지시가 나면 희석운전이 행해지기 때문에 곧바로 재운전(냉방운전)을 행할 수 없다.Once the operation stop instruction is issued, the dilution operation is performed, so that the operation can not be immediately restarted (cooling operation).
본 발명의 목적은 회석운전시간을 단축할 수 있는 흡수식공조장치의 제공하는데에 있다.It is an object of the present invention to provide an absorption type air conditioning apparatus which can shorten the time for operating the refrigerator.
(과제를 해결하기 위한 수단)(MEANS FOR SOLVING THE PROBLEMS)
상기 과제를 해결하기 위헤 본 발명은 이하의 구성을 채용하였다.In order to solve the above problems, the present invention adopts the following configuration.
(1) 실외열교환기, 흡수기전열관, 응축기전열관을 차례로 환형상으로 접속하여 이루어지며, 냉각수펌프로 냉각수를 순환시키는 냉각수회로와; 실내열교환기, 증발기전열관을 환형상으로 접속하여 이루어지며 냉수펌프로 냉수를 순환시키는 냉수회로와; 가열원에 의해 저농도흡수액중의 냉매를 기화시켜서 중농도흡수액과 증기냉매로 분리하는 고온재생기, 상기 고온재생기를 내포하며 상기 중농도흡수액을 고농도흡수액과 증기냉매로 분리하는 저온재생기, 상기 응축기전열관을 구비함과 아울러 각 재생기로부터 고온의 증기냉매가 공급되는 응축기, 상기 응축기에서 액화한 액화냉매를 감압하에서 증발시키는 증발기, 상기 증발기에 병설되며 상기 흡수기전열관을 구비하여 상기 증발기에서 증발한 증기냉매를 상기 저온재생기로부터 공급되는고농도흡수액에 흡수시키는 흡수기, 및 상기 흡수기내의 저농도흡수액을 상기 고온재생기로 되돌리는 용액펌프를 가지는 흡수액회로와; 상기 고온재생기의 온도를 검출하는 온도검출수단과; 상기 냉각수펌프, 상기 냉수펌프, 상기 가열원, 상기 용액펌프 및 상기 전자개폐밸브를 제어하는 제어기; 를 구비하며, 냉방운전을 정지할 때에, 상기 제어기가 상기 가열원 및 냉수펌프의 작동을 정지함과 아울러, 상기 용액펌프및 상기 냉각수펌프의 작동을 계속하는 회석운전을 행하는 흡수식 공조장치에 있어서, 중간에 전자개폐밸브를 구비하며, 상기 고온재생기와 상기 증발기를 접속하는 바이패스관을 설치하고, 상기 회석운전시에, 희석운전개시로부터 소정온도로 저하될 때 까지는 전자개폐밸브를 폐쇄상태로 유지하고, 상기 고온재생기의 온도가 소정온도로 저하되었을 때에 상기 제어기가 상기 전자개폐밸브를 개방한다.(1) a cooling water circuit which is annularly connected in turn to an outdoor heat exchanger, an absorber heat transfer pipe, and a condenser heat transfer pipe, and circulates the cooling water with a cooling water pump; An indoor heat exchanger and an evaporator heat transfer pipe connected in an annular shape and circulating cold water through a cold water pump; A high-temperature regenerator for vaporizing the refrigerant in the low-concentration absorbing liquid by a heating source to separate the medium-absorbing liquid into the vapor-absorbing liquid and the vapor refrigerant, a low-temperature regenerator for separating the high- concentration absorbing liquid into the high-concentration absorbing liquid and the vapor refrigerant, An evaporator for evaporating the liquefied refrigerant liquefied in the condenser; and an evaporator for evaporating the vapor refrigerant vaporized in the evaporator, the evaporator being installed in the evaporator and installed in the evaporator, An absorber circuit for absorbing the high-concentration absorber supplied from the low-temperature regenerator, and a solution pump for returning the low-concentration absorber in the absorber to the high-temperature regenerator; Temperature detecting means for detecting the temperature of the high temperature regenerator; A controller for controlling the cooling water pump, the cold water pump, the heating source, the solution pump, and the electromagnetic opening / closing valve; Wherein the controller stops the operation of the heating source and the cold water pump and stops the operation of the solution pump and the cooling water pump when the cooling operation is stopped, the absorption type air conditioner comprising: And a bypass pipe connecting the high temperature regenerator and the evaporator is provided in the middle of the evaporator, and the electromagnetic opening / closing valve is kept closed until the evaporator is lowered to the predetermined temperature from the start of the dilution operation And the controller opens the electromagnetic opening / closing valve when the temperature of the high temperature regenerator has dropped to a predetermined temperature.
(2) 냉각탑팬을 부설한 냉각탑, 흡수기전열관, 응축기전열관을 차례로 환형상으로 접속하여 이루어지며, 냉방운전시에는 냉각수펌프로 냉각수를 순환시키는 냉각수회로와; 송풍팬을 부설한 실내열교환기와 증발기전열관을 환형상으로 접속하여 이루어지며, 냉온수펌프로 냉온수를 순환시키는 냉온수회로와; 가열원에 의해 저농도 흡수액중의 냉매를 기화시켜서 중농도흡수액과 증기냉매로 분리하는 고온재생기, 상기 고온재생기를 내포하며 냉방운전시에는 상기 중농도 흡수액을 고농도 흡수액과 증기냉매로 분리하는 저온재생기, 상기 응축기전열관을 구비함과 아울러 난방운전시에는 상기 고온재생기로부터 증기냉매가 공급되며 냉방운전시에는 각 재생기로부터 고온의 증기냉매가 공급되는 응축기, 난방운전시에는 상기고온재생기로부터 고온의 중농도흡수액이 공급되며 냉방운전시에는 상기 응축기에서 액화한 액화냉매를 증발시키는 증발기, 상기 증발기와 동일한 용기내에 수납되어 동일한 액수위(液水位)를 나타내는 공통의 저부를 가지도록 병설되며, 상기 흡수기전열관을 구비하여 냉방운전시에는 상기 증발기에서 증발한 증기냉매를 상기 저온재생기로부터 공급되는 고농도흡수액에 흡수시키는 흡수기, 및 상기 흡수기 내의 흡수액을 상기 고온재생기로 되돌리는 용액펌프를 가지는 흡수액회로와; 상기 고온재생기와 상기 증발기를 접속하며, 난방운전시에 개방되는 냉난방절환밸브를 도중에 설치한 난방관과; 상기 고온 재생기의 온도를 검출하는 온도검출수단과; 상기 냉각탑팬, 상기 송풍팬, 상기 냉각수펌프, 상기 냉수펌프, 상기 가열원, 상기 용액펌프 및 상기 냉난방절환밸브를 제어하는 제어기; 를 구비하며, 냉방운전을 정지할 때에, 상기 제어기가 상기 가열원 및 상기 송풍팬의 작동을 정지함과 아울러 상기 용액펌프, 상기 냉각탑팬, 및 상기 냉각수펌프의 작동을 계속하는 회석운전을 행하는 흡수식 공조장치에 있어서, 상기 희석 운전시에, 회석운전 개시로부터 소정온도로 저하될 때까지는 전자개폐밸브를 폐쇄상태로 유지하고, 상기 고온재생기의 온도가 소정온도로 저하되었을 때에는 상기 제어기가 상기 냉난방절환밸브를 개방한다.(2) a cooling water circuit which is connected in an annular fashion to a cooling tower with a cooling tower fan, an absorber heat transfer pipe, and a condenser heat transfer pipe in order, and circulates cooling water with a cooling water pump during cooling operation; A cold / hot water circuit for circulating cold / hot water through a cold / hot water pump, the cold / hot water circuit being connected in an annular shape to an indoor heat exchanger having an air blowing fan and an evaporator heat transfer tube; A high temperature regenerator for separating the refrigerant in the low concentration absorbent into a medium concentration absorbent and a vapor refrigerant by a heating source, a low temperature regenerator for separating the heavy concentration absorbent into a high concentration absorbent and a vapor refrigerant in the cooling operation, A condenser in which the condenser heat transfer tube is provided, the vapor refrigerant is supplied from the high temperature regenerator during heating operation, the vapor refrigerant is supplied from each regenerator during cooling operation, and the high temperature heavy absorber And an evaporator for evaporating the liquefied refrigerant liquefied in the condenser at the time of cooling operation, and a common bottom portion which is housed in the same container as the evaporator and exhibits the same liquid level, So that the vapor refrigerant evaporated in the evaporator is cooled by the evaporator Absorber to absorb the high concentration absorption liquid which is supplied from the regenerator, and with the absorption liquid circuit having a solution pump to return to the absorbing solution in the absorber to the high-temperature regenerator; A heating pipe connected to the high temperature regenerator and the evaporator, the heating pipe being installed in the middle of a heating / cooling switching valve that is opened during heating operation; Temperature detecting means for detecting the temperature of the high temperature regenerator; A controller for controlling the cooling tower fan, the blowing fan, the cooling water pump, the cold water pump, the heating source, the solution pump, and the cooling / heating switching valve; Wherein the controller stops the operation of the heating source and the blowing fan and stops the operation of the solution pump, the cooling tower fan, and the cooling water pump when the cooling operation is stopped, The air conditioner according to claim 1, wherein in the diluting operation, the electromagnetic opening / closing valve is kept in a closed state until the temperature of the high temperature regenerator is lowered to a predetermined temperature from the start of the operation of the refrigerator, and when the temperature of the high temperature regenerator Open the valve.
제 1 도는 본 발명의 일실시예에 관련된 흡수식 냉난방장치의 원리설명도FIG. 1 is an explanatory view of the principle of an absorption type cooling and heating apparatus according to an embodiment of the present invention.
제 2 도는 흡수식 냉난방장치의 시스템도Fig. 2 is a system diagram of the absorption type air conditioner
제 3 도는 흡수식 냉난방장치를 냉방운전시킨 경우의 작동설명도Fig. 3 is an explanatory diagram of operation in the case where the absorption type cooling and heating apparatus is operated in cooling mode
제 4 도는 흡수식 냉난방장치를 난방운전시킨 경우의 작동설명도Fig. 4 is an explanatory view of the operation in the case where the absorption type air conditioning /
제 5 도는 흡수액이 결정석출할 우려가 있는 결정석출영역과 결정석출할 우려가 없는 안전영역을 나누는 결정석출곡선5 shows a crystal precipitation curve dividing the crystal precipitation region in which the absorption liquid is liable to be crystallized and the safe region in which the crystal precipitation is not likely to occur
제 6 도는 냉방운전정지시 제어기의 작동을 나타낸 플로우챠트6 is a flow chart showing the operation of the controller when the cooling operation is stopped
* 도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS
A : 흡수식 냉난방장치(흡수식 공조장치)A: Absorption type air conditioner (absorption type air conditioner)
1 : 냉각수회로 2 : 냉온수회로(냉수회로)1: cooling water circuit 2: cold / hot water circuit (cold water circuit)
3 : 고온재생기 4 : 저온재생기3: High temperature regenerator 4: Low temperature regenerator
5 : 응축기 6 : 증발기5: condenser 6: evaporator
7 : 흡수기 83 : 흡수액회로7: absorber 83: absorption liquid circuit
9 : 제어기 11 : 냉각탑팬9: Controller 11: cooling tower fan
12 : 냉각탑(실외열교환기) 14 : 냉각수펌프12: cooling tower (outdoor heat exchanger) 14: cooling water pump
15 : 흡수기전열관 16 : 응축기전열관15: absorber heat transfer pipe 16: condenser heat transfer pipe
20 : 냉온수(냉수) 21 : 실내열교환기20: cold / hot water (cold water) 21: indoor heat exchanger
31 : 가스버너(가열원) 32 : 가열부31: gas burner (heating source) 32: heating unit
33 : 저농도흡수액 34 : 중농도흡수액33: Low concentration absorbent 34: Medium concentration absorbent
35 : 증기냉매 36 : 냉난방절환밸브(전자개폐밸브)35: steam refrigerant 36: cooling / heating switching valve (electromagnetic opening / closing valve)
37 : 증발기전열관 41 : 고농도흡수액37: Evaporator tube 41: High concentration absorbent
42 : 증기냉매(고온냉매) 52 : 액화냉매42: vapor refrigerant (high temperature refrigerant) 52: liquefied refrigerant
53 : 냉매배관 54 : 냉매밸브53: refrigerant pipe 54: refrigerant valve
61 : 증기냉매 91 : 온도센서(온도검출수단)61: vapor refrigerant 91: temperature sensor (temperature detecting means)
211 : 송풍팬 361 : 난방배관(바이패스관)211: a blower fan 361: a heating pipe (bypass pipe)
801 : 냉온수펌프(냉수펌프) 802 : 용액펌프801: cold / hot water pump (cold water pump) 802: solution pump
청구범위 제 1 항에 관하여Claim 1
고온재생기는 가열원에 의해 가열되며, 저농도흡수액은 냉매가 기화하여 중농도 흡수액과 증기냉매로 분리한다.The high temperature regenerator is heated by the heating source, and the low concentration absorbent vaporizes the refrigerant and separates into the medium concentration absorbent and the vapor refrigerant.
저온재생기는, 중농도흡수액 을 고농도흡수액 과 증기 냉 매 로 분리 한다.The low-temperature regenerator separates the medium-concentration absorber into a high-concentration absorber and a vapor refrigerant.
각 재생기로부터 증기냉매가 응축기로 공급된다.From each regenerator the vapor refrigerant is fed to the condenser.
응축기전열관을 흐르는 냉각수에 의해 증기냉매가 응축되어 응축기내에 고인다.The steam refrigerant is condensed by the cooling water flowing through the condenser heat transfer pipe and is condensed in the condenser.
응축기내에 고인 액화냉매는 증발기로 공급되고, 냉수가 흐르는 증발기전열관에 이르러 증발하는데, 이 때 증발기전열관내를 통과하는 냉수를 냉각한다.The liquefied refrigerant remaining in the condenser is supplied to the evaporator, and evaporates in the evaporator heat pipe through which cold water flows. At this time, the cold water passing through the evaporator heat pipe is cooled.
냉각된 냉수가 실내열교환기를 통과하는 것에 의해 실내냉방이 이루어진다.And the cooled cold water passes through the indoor heat exchanger to perform indoor cooling.
증발기에서 중발한 증기냉매는 저온재생기로부터 공급되는 고농도흡수액에 흡수되어 홉수기내에 고인다. 홉수기내에 고인 저농도흡수액은 용액펌프에 의해 고온재생기로 되돌려진다.The vapor refrigerant in the evaporator is absorbed by the high-concentration absorber supplied from the low-temperature regenerator and accumulated in the hop sequence. The low concentration absorptive solution, which has remained in the hop sequence, is returned to the high temperature regenerator by the solution pump.
냉방운전을 정지할 때에 제어기는, 가열원 및 냉수펌프의 작동을 정지하고 용액펌프 및 냉각수펌프의 작동을 계속하는 희석운전을 행한다. 그리고, 이 회석운전중 고온재생기의 온도가 소정온도로 저하되면 제어기는 전자개폐밸브를 개방한다.When the cooling operation is stopped, the controller performs the dilution operation in which the operation of the heating source and the cold water pump is stopped and the operation of the solution pump and the cooling water pump is continued. When the temperature of the high temperature regenerator is lowered to a predetermined temperature during the operation of the condenser, the controller opens the electromagnetic opening / closing valve.
청구범위 제 2 항에 대하여Claim 2
고온재생기는 가열원에 의해 가열되며, 저농도흡수액은 냉매가 기화하여 중농도흡수액과 증기냉매로 분리된다.The high-temperature regenerator is heated by the heating source, and the low-concentration absorbing liquid is vaporized by the refrigerant and separated into the medium-concentration absorbent and the vapor refrigerant.
저온재생기는, 냉방운전시 중농도흡수액을 고농도흡수액과 증기냉매로 분리한다.The low-temperature regenerator separates the medium-concentration absorbent from the high-concentration absorbent and the vapor refrigerant during the cooling operation.
응축기에는, 난방운전시에 고온재생기로부터 고온의 증기냉매가 공급된다.The high-temperature vapor refrigerant is supplied from the high-temperature regenerator to the condenser during the heating operation.
또한, 냉방운전시에는 각 재생기로부터 고온의 증기냉매가 공급되며 이 증기냉매는 응축기전열관을 흐르는 냉각수에 의해 냉각되어 액화냉매로 된다.During the cooling operation, high-temperature vapor refrigerant is supplied from each regenerator, and this vapor refrigerant is cooled by the cooling water flowing through the condenser heat transfer tube to become liquefied refrigerant.
증발기에는, 난방운전시에 고온재생기로부터 고온의 중농도흡수액이 공급되며, 응축기로부터 증기냉매가 공급되어 증발기전열관을 흐르는 냉온수를 가열한다.During the heating operation, the evaporator is supplied with the high-temperature heavy-liquid absorbent from the high-temperature regenerator, and the vapor refrigerant is supplied from the condenser to heat the cold / hot water flowing through the evaporator heat transfer tube.
또한, 냉방운전시에는 응축기에서 응축된 액화냉매가 공급되며, 냉온수가 흐르는 증발기전열관에 이르러 증발하여 냉온수를 냉각한다.Further, during the cooling operation, condensed liquefied refrigerant is supplied from the condenser, and the refrigerant reaches the evaporator heat transfer tube through which cold / hot water flows and evaporates to cool the cold / hot water.
냉방운전시에는, 냉각된 냉온수가 실내열교환기를 통과할 때 송풍팬에 의해서 냉풍이 실내로 불기시작하여 실내냉방이 이루어진다. 또한, 난방운전시에는, 온도 상승한 냉은수가 실내열교환기 통과시 송풍팬에 의해 온풍이 실내로 불기시작하여 실내난방이 이루어진다.During the cooling operation, when the cooled cold / hot water passes through the indoor heat exchanger, the cold air starts to blow into the room by the blowing fan and the room is cooled. Further, during the heating operation, when the temperature of the hot and cold water passes through the indoor heat exchanger, the blowing fan blows hot air into the room, thereby heating the room.
냉방운전시, 증발기에서 증발한 냉매증기는 흡수기내로 진입하고, 저온재생기로부터 공급되는 고농도흡수액에 흡수되어 흡수기내에 고인다. 또한, 난방운전시는 증발기로부터 열교환이 종료한 흡수액이 진입하여 흡수기내에 고인다.During the cooling operation, the refrigerant vapor evaporated in the evaporator enters the absorber, is absorbed by the high-concentration absorber supplied from the low-temperature regenerator, and is concentrated in the absorber. Further, at the time of heating operation, the absorbing liquid which has undergone the heat exchange from the evaporator enters and accumulates in the absorber.
흡수기내에 고인 흡수액은, 용액펌프에 의해 고온재생기로 되돌려진다.The absorption liquid, which has been recovered in the absorber, is returned to the high-temperature regenerator by the solution pump.
냉방운전을 정지할 때에 제어기는, 가열원 및 송풍팬의 작동을 정지하고, 용액펌프, 냉각탑팬, 및 냉각수펌프의 작동을 계속하는 희석운전을 행한다. 그리고, 이 희석운전중 고온재생기의 온도가 소정온도로 저하되면 제어기는 냉난방절환밸브를 개방한다.When the cooling operation is stopped, the controller stops the operation of the heating source and the blowing fan, and performs the diluting operation to continue the operation of the solution pump, the cooling tower fan, and the cooling water pump. When the temperature of the high temperature regenerator is lowered to the predetermined temperature during the dilution operation, the controller opens the cooling / heating selector valve.
청구범위 제 1 항에 관하여Claim 1
냉방운전을 정지할 때에, 가열원의 작동을 정지하고 용액펌프 및 냉각수펌프의 작동을 계속하는 회석운전을 행하며, 흡수액을 고온재생기→저온재생기→흡수기→용액펌프→고온재생기로 순환시킨다. 이에 의해, 고온·저온재생기내의 흡수액의 온도가 저하됨과 아울러 저온재생기∼흡수기 사이의 고농도흡수액의 농도가 충분히 저하된다.When the cooling operation is stopped, the operation of the heating source is stopped and the operation of the solution pump and the cooling water pump is continued, and the absorption liquid is circulated from the high temperature regenerator to the low temperature regenerator, the absorber, the solution pump and the high temperature regenerator. As a result, the temperature of the absorption liquid in the high temperature / low temperature regenerator is lowered and the concentration of the high concentration absorbent liquid between the low temperature regenerator and the absorber is sufficiently lowered.
이 희석운전중 고온재생기의 온도가 소정온도로 저하되면, 열원의 작동을 정지하고 용액펌프 및 냉각수펌프의 작동을 계속하는 상태에서 전자개폐밸브를 개방한다. 이에 의해, 흡수액이 고온재생기→바이패스관(전자개폐밸브)→증발기→횹수기→용액펌프→고은재생기로 빠른속도로 순환하므로, 흡수액의 온도저하 및 농도의 균일화가 조기(몇분)에 이루어진다. 또한, 전자개폐밸브가 개방되면 흡수액은, 고온재생기로부터 저온재생기로 공급되지 못하게 되므로, 중농도흡수액의 농축은 일어나지 않는다.When the temperature of the high temperature regenerator is lowered to the predetermined temperature during the dilution operation, the operation of the heat source is stopped, and the electromagnetic opening / closing valve is opened while the operation of the solution pump and the cooling water pump is continued. As a result, the absorption liquid circulates at a high speed from the high-temperature regenerator to the bypass pipe (electromagnetic opening / closing valve), the evaporator, the water purifier, the solution pump, and the high-regenerator, so that the temperature of the absorbent is lowered and the concentration thereof is made uniform in a few minutes. Further, when the electromagnetic opening / closing valve is opened, since the absorbing liquid is not supplied from the high temperature regenerator to the low temperature regenerator, the concentration of the medium density absorbing liquid does not occur.
따라서, 회석운전에 걸리는 시간이 종래의 약 1/3로 단축된다. 또한, 전기료도 절약할 수 있다.Therefore, the time required for the operation of the condensing operation is shortened to about 1/3 of the conventional one. In addition, electricity costs can be saved.
청구범위 제 2 항에 관하여Claim 2
냉방운전을 정지할 때에, 가열원 및 송풍팬의 작동을 정지하고 용액펌프, 냉각탑팬, 및 냉각수펌프의 작동을 계속하는 희석운전을 행하며, 흡수액을 고온재생기→저온재생기→흡수기→용액펌프→고온재생기로 순환시킨다. 이에 의해, 고온·저온재생기내의 흡수액의 온도가 저하됨과 아울러 저온재생기∼흡수기 사이의 고농도 흡수액의 농도가 총분히 저하된다.When the cooling operation is stopped, the operation of the heating source and the blowing fan is stopped and the diluting operation for continuing the operation of the solution pump, the cooling tower fan, and the cooling water pump is performed, and the absorption liquid is circulated from the high temperature regenerator to the low temperature regenerator, To the regenerator. As a result, the temperature of the absorbing liquid in the high-temperature / low-temperature regenerator is lowered, and the concentration of the high-concentration absorbing liquid between the low temperature regenerator and the absorber is decreased in total.
이 회석운전중 고온재생기의 온도가 소정온도르 저하되면, 가열원의 작동을 정지하고 용액펌프 냉각탑팬 및 냉각수펌프의 작동을 계속한 상태에서 냉난방절환 밸브를 개방한다. 이에 의해, 흡수액이 고온재생기→난방관(냉난방절환밸브)→증발기→흡수기→용액펌프→고온재생기로 빠른 속도로 순환하므로, 흡수액의 온도저하 및 농도의 균일화가 조기(몇분)에 이루어진다. 또한, 전자개폐밸브가 개방되면 흡수액은, 고온재생기로부터 저온재생기로 공급되지 않게 되므로 중농도흡수액의 농축은 일어나지 않는다.When the temperature of the high temperature regenerator is lowered to a predetermined temperature during the operation of the condenser, the operation of the heating source is stopped and the cooling / heating switching valve is opened while the operation of the solution pump cooling tower fan and the cooling water pump is continued. As a result, the absorption liquid circulates at a high speed from the high-temperature regenerator to the heating pipe (cooling / heating switching valve), the evaporator, the absorber, the solution pump, and the high-temperature regenerator, so that the temperature of the absorbent is lowered and the concentration thereof is made uniform in a few minutes. Further, when the electromagnetic opening / closing valve is opened, since the absorbing liquid is not supplied from the high temperature regenerator to the low temperature regenerator, concentration of the medium density absorbing liquid does not occur.
따라서, 회석운전에 걸리는 시간이 종래의 약 1/3로 단축된다. 또한, 전기료도 절약할 수 있다.Therefore, the time required for the operation of the condensing operation is shortened to about 1/3 of the conventional one. In addition, electricity costs can be saved.
(발명의 실시형태)(Embodiments of the Invention)
본 발명의 일실시예(청구범위 제 1, 2 항에 대응)를 제 1 도∼제 6 도에 따라 설명 한다.An embodiment of the present invention (corresponding to Claims 1 and 2) will be described with reference to FIGS. 1 to 6.
도면에 나타낸 바와 같이 흡수식 냉난방장치(A)는, 냉방운전시에 냉각수(10)를 순환시키는냉각수회로(1)와, 냉온수(20)를순환시키는냉온수회로(2)와, 고온재생기(3), 저온재생기(4), 응축기(5), 증발기(6), 흡수기(7), 및 용액펌프(802) 등을 가지는 흡수액회로(8)와, 제어기(9), 온도센서(91)를 구비한다.As shown in the drawing, the absorption type cooling and heating apparatus A comprises a cooling water circuit 1 for circulating cooling water 10 during cooling operation, a cold / hot water circuit 2 for circulating cold / hot water 20, An absorber circuit 8 having a low-temperature regenerator 4, a condenser 5, an evaporator 6, an absorber 7 and a solution pump 802 and a controller 9 and a temperature sensor 91 do.
냉각수회로(1)는, 실외열교환기를 구성하는 냉각탑팬(11) 및 냉각탑(12)과, 냉각수탱크(13)와, 냉각수펌프(14)와, 흡수기전열관(15)과, 응축기전열관(16)을 차례로 환형상으로 접속하여 구성되며, 냉방운전시에는 냉각수펌프(14)(1230lit/h)를 작동시켜서 냉각수(10)를 순환시킨다. 또한, 냉각탑팬(11)은 흡수기전열관(15)에 공급되는 냉각수(10)의 온도가 31.5℃가 되도록 제어기(9)에 의해 회전력이 제어된다.The cooling water circuit 1 includes a cooling tower fan 11 and a cooling tower 12 which constitute an outdoor heat exchanger, a cooling water tank 13, a cooling water pump 14, an absorber heat transfer pipe 15, a condenser heat transfer pipe 16, And the cooling water pump 14 (1230 liters / h) is operated to circulate the cooling water 10 during the cooling operation. The rotation of the cooling tower fan 11 is controlled by the controller 9 so that the temperature of the cooling water 10 supplied to the absorber heat transfer tube 15 becomes 31.5 ° C.
또한, 난방운전시(제 4 도 참조)에는, 냉각수회로(1)내의 냉각수(10)는 모두 빠진다.During the heating operation (see FIG. 4), all of the cooling water 10 in the cooling water circuit 1 falls out.
냉온수회로(2)는, 송풍팬(211)을 가지는 실내열교환기(21)(복수개의 병렬접속가능), 시스턴(22; cistern), 냉온수펌프부(801)(최대능력시 620lit/h), 증발기전열관(37)을 환형상으로 접속하여 이루어지며, 냉온수펌프(801)에 의해 냉온수(20)를 순환시키고 있다. 또한, 냉방운전시의 실내열교환기(21)의 흡열량은 4340kcal(최대능력시)이고, 난방운전시의실내열교환기(21)의방열량은6200kcal(최대능력시)이다.The cold / hot water circuit 2 includes an indoor heat exchanger 21 having a blowing fan 211, a cistern 22, a cold / hot water pump unit 801 (620 liters / h at maximum capacity) And an evaporator heat transfer pipe 37 are connected in an annular shape, and the cold / hot water 20 is circulated by the cold / hot water pump 801. The amount of heat absorbed by the indoor heat exchanger 21 during the cooling operation is 4340 kcal (at the maximum capacity), and the amount of heat discharged from the indoor heat exchanger 21 during the heating operation is 6200 kcal (at the maximum capacity).
고온재생기(3)는, 가스버너(31)에 의해 가열되는 돔형상의 가열실(32), 상측에 세워설치하는 취출통(321), 및 저농도흡수액(33)(본 실시예에서는 58%리튬브로마이드 수용액)중의 냉매(물)를 증발시켜서 중농도흡수액(34)(60%리튬브로마이드 수용액)과 증기냉매로 분리하는 분리통(322) 등에 의해 구성된다. 또한, 가열실(32)에는 고온재생기(3)의 온도{저농도흡수액(33)의 온도}를 측정하기 위한 온도센서(91)가 설치되어 있다.The high temperature regenerator 3 includes a dome heating chamber 32 heated by a gas burner 31, a take-out barrel 321 standing upright on the upper side and a low concentration absorbent 33 (58% lithium bromide in this embodiment) (60% lithium bromide aqueous solution) and the vapor refrigerant by evaporating the refrigerant (water) in the water-absorbing liquid (aqueous solution). The heating chamber 32 is provided with a temperature sensor 91 for measuring the temperature of the high temperature regenerator 3 (temperature of the low concentration absorbent 33).
가스버너(31)는, 분젠식으로 가스전자밸브(311, 312), 가스비레밸브(313)를 연이어 설치한 가스관(314)에 의해 가스가 공급되며, 연소용팬(315)에 의해 연소용공기가 공급되어 연소한다.The gas burner 31 is supplied with gas by a gas pipe 314 in which the gas solenoid valves 311 and 312 and the gas non-return valve 313 are successively provided in the form of a spray gun, And is burned.
냉방운전시, 가스버너(31)는, 실내열교환기(21)로 공급되는 냉온수(20)의 온도가 7℃가 되도록 인풋량이 1500∼4800kca1 사이에서 제어기(9)에 의해 제어된다. 또한, 터보냉방운전시는 인풋량이 6500kca1가 된다.During the cooling operation, the gas burner 31 is controlled by the controller 9 so that the temperature of the cold / hot water 20 supplied to the indoor heat exchanger 21 is 7 ° C, and the input amount is 1500 to 4800 kcal. In the turbo cooling operation, the input amount is 6500 kcal.
또한, 난방운전시는, 실내열교환기(21)에 공급되는 냉온수(20)의 온도가 60℃가 되도록 인풋량이 1500∼8000kca1 사이에서 제어기(9)에 의해 제어된다.During the heating operation, the controller 9 controls the input amount between 1500 and 8000 kcal so that the temperature of the cold / hot water 20 supplied to the indoor heat exchanger 21 becomes 60 占 폚.
냉방운전시는, 냉난방절환밸브(36)를 개방하고 있으므로 중농도흡수액(34)(165℃)은, 중농도흡수액배관(341)→고온열교환유로(342)→오리피스(343)가 형성되어 있는 중농도흡수액배관(344)을 거쳐 저온재생기(4)의 상부로 공급된다.At the time of cooling operation, the cooling / warming-up valve 36 is opened, so that the medium-concentration absorbent 34 (165 ° C) is formed with the medium-density absorbent pipe 341 → the high-temperature heat exchange channel 342 → the orifice 343 The medium concentration is also supplied to the upper part of the low temperature regenerator 4 through the absorption liquid pipe 344.
저온재생기(4)는, 고온재생기(3)를 내포하며 냉방운전시에는 고온재생기(3)로 부터 공급된 중농도흡수액(34)을 고농도흡수액(41)(62%리튬브로마이드 수용액)과 종기냉매(42)로 분리한다. 또한, 난방운전시 중농도흡수액(34)은 저온재생 기(4)로 공급되지 않는다.The low temperature regenerator 4 contains the high temperature regenerator 3 and the medium density absorbent 34 supplied from the high temperature regenerator 3 during the cooling operation is replaced with the high density absorbent 41 (62% lithium bromide aqueous solution) (42). In addition, the middle density absorber 34 is not supplied to the low temperature regenerator 4 during the heating operation.
응축기(5)에는 난방운전시 오리피스(511)가 형성되어 있는 증기냉매배관(51)을 통하여 고온재생기(3)로부터 고온의 증기냉매가 공급되는데, 냉각수(10)가 응축기 전열관(16)내를 흐르지 않으므로 응축하지 않는다.The high-temperature vapor refrigerant is supplied from the high-temperature regenerator 3 through the vapor refrigerant pipe 51 having the orifice 511 formed therein during the heating operation to the condenser 5. The cooling water 10 flows into the condenser heat transfer tube 16 Do not condensate because it does not flow.
냉방운전시에는 고온재생기(3), 저온재생기(4)로부터 증기냉매(35, 42)가 응축기(5)로 공급되며, 증기냉매(35, 42)는 코일형상의 응축기전열관(16)을 흐르는 냉각수(10)에 의해 냉각되어 액화하고, 액화냉매(물)(52)는 응축기(5)의 저부에 고인다. 또한, 온도상승(37.5℃)한 냉각수(10)는 냉각탑(12)에서 냉각(31.5℃)된다.During the cooling operation, vapor refrigerants 35 and 42 are supplied from the high temperature regenerator 3 and the low temperature regenerator 4 to the condenser 5, and the vapor refrigerants 35 and 42 are supplied to the condenser heat transfer tubes 16 Cooled by the cooling water 10 and liquefied, and the liquefied refrigerant (water) 52 is concentrated at the bottom of the condenser 5. Further, the cooling water 10 whose temperature rises (37.5 ° C) is cooled (31.5 ° C) in the cooling tower 12.
증발기(6)는 코일형상(나사홈이 형성되어 있음)의 증발기전열관(37)을 구비하고 있다. 그리고, 난방운전시에는 냉난방절환밸브(36)를 개방하고 있으므로 중농도 흡수액배관(341){냉난방절환밸브(36)}→난방배관(361)을 통하여 고온의 중농도흡수액(34)이 증발기(6)로 공급된다. 또한, 동시에 응축기(5)로부터 고온의 증기냉매(42)가 냉매배관(53){냉 매 밸브(54)}을 통하여 공급된다.The evaporator 6 is provided with an evaporator heat transfer tube 37 in the form of a coil (formed with thread grooves). Since the heating / cooling switching valve 36 is opened during the heating operation, the high-density heavy absorbent 34 is supplied to the evaporator (not shown) through the medium-density absorber pipe 341 (heating / cooling switching valve 36) 6). At the same time, high-temperature vapor refrigerant 42 is supplied from the condenser 5 through the refrigerant pipe 53 (refrigerant valve 54).
냉방운전시에 냉매밸브(54)가 개방되면 액화냉매(52)는 냉매배관(53){냉매밸브(54)}→산포기(55)를 통하여 증발기전열관(37)에 산포되고, 증발기(6)내는 대략 진공(약 6. 5mmHg)이므로, 액화냉매(52)는 증발기전열관(37)내를 흐르는 냉온수(20)로부터 기화열을 빼앗겨 증발한다. 그리고, 냉각된 냉온수(20)는 실내에 설치된 실내열교환기(21)에서 실내로 송풍되는 공기와 열교환(최대능력시 흡열4340kca1/h)하여 온도상승하고, 온도상승한 냉온수(20)는 다시 증발기전열관(37)을 통과하여 냉각된다.When the refrigerant valve 54 is opened during the cooling operation, the liquefied refrigerant 52 is distributed to the evaporator heat transfer tube 37 through the refrigerant pipe 53 (refrigerant valve 54), the oxidizer 55, and the evaporator 6 (About 6.5 mmHg), the liquefied refrigerant 52 deprives the heat of vaporization from the cold / hot water 20 flowing in the evaporator heat transfer tube 37 and evaporates. The cooled cold / hot water 20 is heat-exchanged with the air blown into the room from the indoor heat exchanger 21 installed in the room (the endothermic heat is 4340 kcal / h at the maximum capacity), and the cold / hot water 20, (37).
흡수기전열관(15)을 설치한 흡수기(7)는, 증발기(6)에 병설되며 상부등이 증발기(6)와 연결되어 있다.The absorber 7 provided with the absorber heat transfer pipe 15 is installed in parallel with the evaporator 6 and the upper portion is connected to the evaporator 6. [
그리고, 냉방운전시에는 증발기(6)에서 증발한 증기냉매(61)는 상부 등으로부터 흡수기(7)내로 진입하여, 통하여 흡수기전열관(15) 위에 산포되는 고농도흡수액(41)에 흡수되어 저농도로 된 저농도흡수액(33)은 횹수기(7)의 저부에 고인다.During the cooling operation, the vapor refrigerant 61 evaporated in the evaporator 6 enters the absorber 7 from the upper portion and is absorbed by the high-concentration absorber 41 scattered on the absorber heat transfer pipe 15, The low-concentration absorbent 33 is held at the bottom of the scraper 7.
또한, 난방운전시에는 증발기(6)로부터 고온의 흡수액이 공급된다.At the time of heating operation, a high-temperature absorbing liquid is supplied from the evaporator 6.
용액펌프(802)는, AC-100V에서 동작하는 3상브러시리스DC모터(정격출력 200W, 소비전력 250W) 이다.The solution pump 802 is a three-phase brushless DC motor (rated power 200W, power consumption 250W) operating at AC-100V.
이 용액펌프(802)에는 흘 소자(800; hall device)가 부착되며, 제어기(9)에 의해 피이드백 제어된다. 또한, 냉온수펌프(801)와 용액펌프(802)를 1대의 탠덤펌프로 구성해도 되는데, 이 겅우 회석운전중 탠덤펌프는 작동을 계속시킨다.The solution pump 802 is attached with a hall device 800 and is fed back controlled by the controller 9. Also, the cold / hot water pump 801 and the solution pump 802 may be constituted by a single tandem pump, and the tandem pump continues to operate during this chamber operation.
흡수기(7)의 저부에 고인 저농도흡수액(33)(난방운전시는 흡수액)은, 저농도흡수액배관(71)→용액 펌 프(802)(최대유량100lit小)→저농도흡수액배관(72)→저온열교환유로(73)→고온열교환유로(74)→저농도흡수액배관(75)을 통하여 고온재생기(3)의 가열실(32)로 공급된다.The low concentration absorbing liquid 33 (absorbing liquid at the time of heating operation), which is high at the bottom of the absorber 7, flows from the low concentration absorbing liquid pipe 71 to the solution pump 802 (maximum flow rate of 100 liters) to the low concentration absorbing liquid pipe 72, Is supplied to the heating chamber 32 of the high temperature regenerator 3 through the heat exchange path 73 → the high temperature heat exchange path 74 → the low concentration absorbing liquid pipe 75.
온도센서(91)는, 고온재생기(3)의 가열실(32)의 온도{저농도흡수액(33) 또는 기체(器體)의 온도}를 검출하기 위한 것이다.The temperature sensor 91 is for detecting the temperature of the heating chamber 32 of the high temperature regenerator 3 (temperature of the low concentration absorbent 33 or the temperature of the body).
제어기(9)는, 운전스위치(도시생략)로부터의 신호와 온도센서(91)를 포함하는 각종 센서로부터의 신호 등에 따라 이하의 것을 제어한다.The controller 9 controls the following things according to signals from an operation switch (not shown), signals from various sensors including the temperature sensor 91, and the like.
가스전자밸브(311, 312 ), 가스비레밸브(313 ), 냉온수펌프(801), 용액펌프(802 ), 냉각탑팬(11), 냉매밸브(54), 냉난방절환밸브(36), 냉각수펌프(14), 송풍팬(211).The gas valve 311 and the gas valve 313, the cold / hot water pump 801, the solution pump 802, the cooling tower fan 11, the refrigerant valve 54, the cooling / 14, and a blowing fan 211.
이어서, 냉방운전중(제 1, 3 도 참조)에 있는 흡수식 냉난방장치(A)를 냉방정지(고온이상정지도 포함)할 때에 있어서, 제어기(9)의 마이크로 컴퓨터 작동을 제 6 도에 나타낸 플로우챠트에 따라 설명한다.Next, the microcomputer operation of the controller 9 is performed in the flow shown in FIG. 6 when the absorption-type cooling and heating apparatus A in the cooling operation (see FIGS. 1 and 3) Explanation will be made based on the chart.
냉방운전 정지 지시가 나면, 스텝s1에서 가스전자밸브(311, 312)를 개방하여 가스버너(31)를 소화하고 스텝 s2로 이행한다.When the cooling operation stop instruction is issued, the gas solenoid valves 311 and 312 are opened in step s1, the gas burner 31 is extinguished, and the process proceeds to step s2.
스텝 s2에서 이하에 나타낸 제 1 회석운전을 약 3분간 행한다.In the step s2, the following first circulating operation is performed for about three minutes.
제 1회석운전1st cup operation
송풍팬(211) 및 냉온수펌프(801)의 작동을 정지하고, 연소용팬(315), 용액펌프(802), 냉각수펌프(14), 및 냉각탑팬(11)의 작동을 계속한다.The operation of the blowing fan 211 and the cold / hot water pump 801 is stopped and the operation of the combustion fan 315, the solution pump 802, the cooling water pump 14, and the cooling tower fan 11 is continued.
제 1 회석운전에 의해 흡수액은 이하와 같이 순환한다.The absorption liquid is circulated as follows by the first churning operation.
고온재생기(3)→중농도흡수액배관(341)→고온열교환유로(342)→오리피스(343)가 형성되어 있는 중농도흡수액배관(344)→저온재생기(4)→고농도흡수액배관(411)→저온열교환유로(412)→고농도흡수액배관(413)→흡수기(7)→저농도흡수액배관(71)→용액펌프(802)→저농도흡수액 배관(72)→저온열교환유로(73)→고온열교환유로(74)→저농도흡수액 배 관(75)→고온재생기(3)The medium absorbing liquid pipe 344 in which the high temperature regenerator 3 → the medium density absorbing liquid pipe 341 → the high temperature heat exchanging oil passage 342 → the orifice 343 is formed → the low temperature regenerator 4 → the high concentration absorbent pipe 411 → The low temperature heat exchange channel 412 → the high concentration absorption liquid pipe 413 → the absorber 7 → the low concentration absorption liquid pipe 71 → the solution pump 802 → the low concentration absorption liquid pipe 72 → the low temperature heat exchange channel 73 → the high temperature heat exchange channel 74) → low-concentration absorbent pipe (75) → high-temperature regenerator (3)
고온재생기(3)→오리피스(511)가 형성되어 있는 증기냉매배관(51)을 거쳐 응축기(5), 또는 저온재생기(4)→틈사이를 지나 응축기(5), 그리고 응축기(5)→냉매배관(53){냉매 밸브(54)}→증발기(6)→흡수기(7)The refrigerant flows through the condenser 5 or the low-temperature regenerator 4 through the gap → the condenser 5 and the condenser 5 → the refrigerant → the high-temperature regenerator 3 → the orifice 511, The pipe 53 (refrigerant valve 54), the evaporator 6, the absorber 7,
스텝 s3에서 고온재생기(3)의 온도가 130℃이하{온도센서(91)가 130℃이하의 온도를 검칡로 저하되고 있는지 아닌지를 판별하여 저하되고 있는 경우(YES)는 스텝 s4로 이행하며, 저하되고 있지 않은 경우(NO)는 스텝 s2로 되돌아가 제 1 회석운전을 계속한다.If it is determined in step s3 that the temperature of the high temperature regenerator 3 is lower than or equal to 130 DEG C (i.e., the temperature sensor 91 has deteriorated to a temperature of 130 DEG C or lower, If it is not deteriorated (NO), the process returns to Step s2 to continue the first operation.
스텝 s4에서 이하에 나타낸 제 2 회석운전을 약 45초간 행한다.In step s4, the second circulation operation as shown below is performed for about 45 seconds.
제 2 회석운전The second cupboard operation
송풍팬(211) 및 냉온수펌프(801)의 작동을 정지하며, 냉난방절환밸브(36)를 개방하고, 연소용팬(315), 용액펌프(802), 냉각수펌프(14), 및 냉각탑팬(11)의 작동을 계속한다.The heating and cooling water pump 801 is stopped and the cooling and heating switching valve 36 is opened and the combustion fan 315, the solution pump 802, the cooling water pump 14 and the cooling tower fan 11 ).
이에 의해 흡수액은 이하와 같이 빠른 속도로 순환한다.Thereby, the absorption liquid circulates at a high speed as follows.
고온재생기(3)→중농도흡수액배관(341)→난방배 관(361){냉 난방절환밸브(36)}→증발기(6)→흡수기(7)→저농도흡수액배관(71)→용액 펌프(802)→저농도흡수액배관(72)→저온열교환유로(73)→고온열교환유로(74)→저농도흡수액배관(75)→고온재생 기(3) 스텝 s5에서 고온재생기(3)의 온도가 110℃이하{온도센서(91)가 110℃이하의 온도를 검출)로 저하되고 있는지 아닌지를 판별하여 저하되고 있는 경우(YES)는 스텝 s6로 이행하며, 저하되고 있지 않은 경우(NO)는 스텝 s4로 되돌아가 제 2 희석운전을 계속한다.The high temperature regenerator 3 → the medium concentration absorber pipe 341 → the heating pipe 361 (the cooling / heating switching valve 36) → the evaporator 6 → the absorber 7 → the low concentration absorber pipe 71 → the solution pump The temperature of the high temperature regenerator 3 is set to 110 ° C in step s5, and the temperature of the high temperature regenerator 3 is set to 110 ° C. (The temperature sensor 91 detects a temperature lower than or equal to 110 DEG C), and if the temperature is lowered (YES), the process proceeds to step s6. If the temperature has not decreased (NO), the process proceeds to step s4 The second dilution operation is continued.
스텝 s6에서 냉난방절환밸브(36)를 개방하고, 연소용팬(315), 용액펌프(802), 냉온수펌프(801), 냉각수펌프(14), 및 냉각탑팬(11)의 작동을 정지하고 회석운전을 종료 한다.In step s6, the cooling / heating switching valve 36 is opened and the operation of the combustion fan 315, the solution pump 802, the cold / hot water pump 801, the cooling water pump 14 and the cooling tower fan 11 is stopped, Lt; / RTI >
본 실시예의 흡수식 냉난방장치(A)는 이하의 이점을 가진다.The absorption type cooling and heating apparatus A of the present embodiment has the following advantages.
흡수식 냉난방장치(A)는, 냉방운전을 정지할 경우 고온재생기(3)의 온도가 130℃이하로 되기까지 상술한 제 1 회석운전을 행하고, 이어서 110℃로 되기까지 제 2 회석운전을 행하는 구성이다.The absorption type cooling and heating apparatus A is configured such that when the cooling operation is stopped, the first quenching operation is performed until the temperature of the high temperature regenerator 3 becomes 130 캜 or less, and then the second quenching operation is performed until the temperature is 110 캜 to be.
제 1 희석운전에 의해 흡수액은 상술한 바와 같이 순환하고, 예를 들면 약 3분내에 고온재생기(3)의 온도는 130℃로 저하{저온재생기(4)내의 흡수액의 온도도 저하된다)됨과 아울러 저온재생기(4)∼흡수기(7) 사이의 고농도흡수액(41)의 농도가 결정석출안전영역의 범위내(제 5 도 참조)로 충분히 저하된다.The absorbing liquid circulates by the first diluting operation as described above. For example, within about 3 minutes, the temperature of the high temperature regenerator 3 is lowered to 130 DEG C (the temperature of the absorbing liquid in the low temperature regenerator 4 is also lowered) The concentration of the high concentration absorbent 41 between the low temperature regenerator 4 and the absorber 7 is sufficiently lowered within the range of the crystal precipitation safe range (see FIG. 5).
또한 제 2 회석운전에 의해 흡수액은 상술한 바와 같이 빠른 속도로 순환하므로, 약 45초후에 고온재생기(3)내의 흡수액의 온도가 약 110℃로 저하됨과 아울러, 고온재생기(3)∼증발기(6) 사이의 중농도흡수액(34)의 농도가 충분히 저하된다. 또한, 저온재생기(4)에 흡수액이 고온재생기(3)로부터 공급되지 않게 되므로, 중농도흡수액(34)의 농축은 일어나지 않는다.In addition, since the absorption liquid circulates at a high speed as described above by the second chiller operation, the temperature of the absorption liquid in the high temperature regenerator 3 is lowered to about 110 DEG C after about 45 seconds, and the high temperature regenerator 3 to the evaporator 6 The concentration of the medium-concentration absorbent 34 is sufficiently lowered. Further, since the absorbing liquid is not supplied to the low temperature regenerator 4 from the high temperature regenerator 3, the concentration of the medium density absorbing liquid 34 does not occur.
이에 의해 종래 예를 들면 약 9분 걸리던 회석운전이 약 4분으로 단축된다. 회석운전종료후는 전력이 필요없어지므로 전기료를 절약할 수 있다. 또한, 운전정지지시가 있은 후 비교적 짧은 대기시간(최대 약 3분 45초) 경과후 다시 냉방운전을 재개할 수 있다.As a result, for example, the conventional operation, which takes about 9 minutes, is shortened to about 4 minutes. Since electric power is no longer required after the operation of the refrigerator, it is possible to save electricity costs. In addition, the cooling operation can be resumed after a relatively short waiting time (up to about 3 minutes and 45 seconds) after the operation stop instruction is given.
또한, 상기 실시예에서는 고온재생기(3)의 온도가 소정온도로 저하되었을 때 난방배관의 냉난방절환밸브(36)가 개방하는 것을 나타냈는데, 난방기능을 가지지 않은 것에서는 고온재생기(3)와 증발기(6)를 접속하는 바이패스관을 설치하고, 바이패스관에 설치한 전자개폐밸브를 개방하면 된다.In the above embodiment, when the temperature of the high temperature regenerator 3 is lowered to a predetermined temperature, the heating / cooling switching valve 36 of the heating pipe is opened. However, in the case of not having the heating function, A bypass pipe for connecting the bypass pipe 6 may be provided, and the electromagnetic opening / closing valve provided in the bypass pipe may be opened.
또한, 냉난방절환밸브(36)나 전자개폐밸브는 크로스밸브여도 된다. 또한, 상기 실시예에서는 가열원으로서 가스버너(31)를 나타냈는데 전기히터여도 된다.The cooling / heating switching valve 36 or the electromagnetic opening / closing valve may be a cross valve. Although the gas burner 31 is shown as a heating source in the above embodiment, it may be an electric heater.

Claims (2)

  1. 실외열교환기, 흡수기전열관, 응축기전열관을 차례로 환형상으로 접속하여 이루어지며, 냉각수펌프로 냉각수를 순환시키는 냉각수회로와;An outdoor heat exchanger, an absorber heat transfer pipe, and a condenser heat transfer pipe, and circulating cooling water through a cooling water pump;
    실내열교환기, 증발기전열관을 환형상으로 접속하여 이루어지며 냉수펌프로 냉수를 순환시키는 냉수회로와;An indoor heat exchanger and an evaporator heat transfer pipe connected in an annular shape and circulating cold water through a cold water pump;
    가열원에 의해 저농도흡수액중의 냉매를 기화시켜서 중농도흡수액과 증기냉매로 분리하는 고온재생기, 상기 고온재생기를 내포하며 상기 중농도흡수액을 고농도흡수액과 증기냉매로 분리하는 저온재생기, 상기 응축기전열관을 구비함과 아울러 각 재생기로부터 고온의 증기냉매가 공급되는 응축기, 상기 응축기에서 액화한 액화냉매를 감압하에서 증발시키는 증발기, 상기 증발기에 병설되며 상기 흡수기전열관을 구비하여 상기 증발기에서 증발한 증기냉매를 상기 저온재생기로부터 공급되는 고농도흡수액에 흡수시키는 흡수기, 및 상기 흡수기내의 저농도흡수액을 상기 고온재생기로 되돌리는 용액펌프를 가지는 흡수액회로와;A high-temperature regenerator for vaporizing the refrigerant in the low-concentration absorbing liquid by a heating source to separate the medium-absorbing liquid into the vapor-absorbing liquid and the vapor refrigerant, a low-temperature regenerator for separating the high- concentration absorbing liquid into the high-concentration absorbing liquid and the vapor refrigerant, An evaporator for evaporating the liquefied refrigerant liquefied in the condenser; and an evaporator for evaporating the vapor refrigerant vaporized in the evaporator, the evaporator being installed in the evaporator and installed in the evaporator, An absorber circuit for absorbing the high-concentration absorber supplied from the low-temperature regenerator, and a solution pump for returning the low-concentration absorber in the absorber to the high-temperature regenerator;
    상기 고온재생기의 온도를 검출하는 온도검출수단과;Temperature detecting means for detecting the temperature of the high temperature regenerator;
    상기 냉각수펌프, 상기 냉수펌프, 상기 가열원, 상기 용액펌프, 및 상기 전자개폐밸브를 제어하는 제어기; 를 구비하며,A controller for controlling the cooling water pump, the cold water pump, the heating source, the solution pump, and the electromagnetic opening / closing valve; And,
    냉방운전을 정지할 때에, 상기 제어기가 상기 가열원 및 냉수펌프의 작동을 정지함과 아울러, 상기 용액펌프 및 상기 냉각수펌프의 작동을 계속하는 회석운전을 행하는 흡수식 공조장치에 있어서,The absorption type air conditioner according to claim 1 or 2, wherein when the cooling operation is stopped, the controller stops the operation of the heating source and the cold water pump, and performs the condensation operation to continue the operation of the solution pump and the cooling water pump,
    중간에 전자개폐밸브를 구비하며, 상기 고온재생기와 상기 증발기를 접속하는 바이패스관을 설치하고,And a bypass pipe connecting the high temperature regenerator and the evaporator is provided,
    상기 희석운전시에, 회석운전개시로부터 소정온도로 저하될 때까지는 전자개폐밸브를 폐쇄상태로 유지하고, 상기 고온재생기의 온도가 소정온도로 저하되었을 때에 상기 제어기가 상기 전자개폐밸브를 개방하는 것을 특징으로 하는 흡수식 공조장치.Closing valve during a period from the start of the diluting operation until the temperature of the diluting operation is lowered to a predetermined temperature, and when the temperature of the high temperature regenerator is lowered to a predetermined temperature, the controller opens the electromagnetic opening / closing valve The absorption type air conditioning apparatus characterized in.
  2. 냉각탑팬을 부설한 냉각탑, 흡수기전열관, 응축기전열관을 차례로 환형 상으로 접속하여 이루어지며, 냉방운전시에는 냉각수펌프로 냉각수를 순환시키는 냉각수회로와;A cooling water circuit for circulating cooling water through a cooling water pump in a cooling operation in which cooling towers having cooling tower fans, an absorber heat transfer pipe, and a condenser heat transfer pipe are connected in an annular fashion;
    송풍팬을 부설한 실내열교환기와 증발기전열관을 환형상으로 접속하여 이루어지며, 냉온수펌프로 냉온수를 순환시키는 냉온수회로와;A cold / hot water circuit for circulating cold / hot water through a cold / hot water pump, the cold / hot water circuit being connected in an annular shape to an indoor heat exchanger having an air blowing fan and an evaporator heat transfer tube;
    가열원에 의해 저농도흡수액중의 냉매를 기화시켜서 중농도흡수액과 증기냉매로 분리하는 고온재생기, 상기 고온재생기를 내포하며 냉방운전시에는 상기 중농도 횹수액을 고농도 흡수액과 증기냉매로 분리하는 저온재생기, 상기 응축기 전열관을 구비함과 아울러 난방운전시에는 상기 고온재생기로부터 증기냉매가 공급되며 냉방운전시에는 각 재생기로부터 고온의 증기냉매가 공급되는 응축기, 난방운전시에는 상기고온재생기로부터 고온의 중농도흡수액이 공급되며 냉방운전시에는 상기 응축기에서 액화한 액화냉매를 증발시키는 증발기, 상기 증발기와 동일한 용기내에 수납되어 동일한 액수위(液水位)를 나타내는 공통의 저부를 가지도록 병설되며, 상기 흡수기전열관을 구비하여 냉방운전시에는 상기 증발기에서 증발한 증기냉매를 상기 저온재생기로부터 공급되는 고농도흡수액에 흡수시키는 흡수기, 및 상기 흡수기 내의 흡수액을 상기 고온재생기로 되돌리는 용액펌프를 가지는 흡수액회로와;A high-temperature regenerator for vaporizing the refrigerant in the low-concentration absorbing liquid by the heating source to separate the medium-absorbing liquid into vapor refrigerant, a low-temperature regenerator for separating the heavy- A condenser in which the condenser heat transfer tube is provided, the vapor refrigerant is supplied from the high temperature regenerator in the heating operation, and the vapor refrigerant is supplied from each regenerator in the cooling operation, and the high temperature heavy condenser An evaporator for evaporating the liquefied refrigerant liquefied in the condenser at the time of cooling operation, and a common bottom portion which is stored in the same container as the evaporator and exhibits the same liquid level, And the steam refrigerant evaporated in the evaporator is cooled by the evaporator Absorber to absorb the high concentration absorption liquid which is supplied from the regenerator, and with the absorption liquid circuit having a solution pump to return to the absorbing solution in the absorber to the high-temperature regenerator;
    상기 고온재생기와 상기 증발기를 접속하며, 난방운전시에 개방되는 냉난방절환밸브를 도중에 설치한 난방관과;A heating pipe connected to the high temperature regenerator and the evaporator, the heating pipe being installed in the middle of a heating / cooling switching valve that is opened during heating operation;
    상기 고온재생기의 온도를 검출하는 온도검출수단과;Temperature detecting means for detecting the temperature of the high temperature regenerator;
    상기 냉각탑팬, 상기 송풍팬, 상기 냉각수펌프, 상기 냉수펌프, 상기 가열원, 상기 용액펌프 및 상기 냉난방절환밸브를 제어하는 제어기; 를 구비하며, 냉방운전을 정지할 때에, 상기 제어기가 상기 가열원 및 상기 송풍팬의 작동을 정지함과 아울러 상기 용액펌프, 상기 냉각탑팬, 및 상기 냉각수펌프의 작동을 계속하는 희석운전을 행하는 흡수식 공조장치에 있어서,A controller for controlling the cooling tower fan, the blowing fan, the cooling water pump, the cold water pump, the heating source, the solution pump, and the cooling / heating switching valve; Wherein the controller stops the operation of the heating source and the blowing fan and stops the operation of the solution pump, the cooling tower fan, and the cooling water pump when the cooling operation is stopped, In the air conditioning system,
    상기 희석운전시에, 희석운전 개시로부터 소정온도로 저하될 때까지는 전자개폐밸브를 폐쇄상태로 유지하고, 상기 고온재생기의 온도가 소정온도로 저하되었을 때에는 상기 제어기가 상기 냉난방절환밸브를 개방하는 것을 특징으로 하는 흡수식 공조장치.Closing valve during a period from the start of the dilution operation to the predetermined temperature during the dilution operation, and when the temperature of the high temperature regenerator is lowered to the predetermined temperature, the controller opens the cooling / heating selector valve The absorption type air conditioning apparatus characterized in.
KR1019960038256A 1995-09-05 1996-09-04 Absorption type air conditioner KR100219910B1 (en)

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JP95-228310 1995-09-05
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JP95-306123 1995-11-24

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