KR20220027044A - Absorption chiller with integrated pulse control inverter - Google Patents

Absorption chiller with integrated pulse control inverter Download PDF

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Publication number
KR20220027044A
KR20220027044A KR1020210190929A KR20210190929A KR20220027044A KR 20220027044 A KR20220027044 A KR 20220027044A KR 1020210190929 A KR1020210190929 A KR 1020210190929A KR 20210190929 A KR20210190929 A KR 20210190929A KR 20220027044 A KR20220027044 A KR 20220027044A
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South Korea
Prior art keywords
pump
cold water
control
control unit
inverter
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KR1020210190929A
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Korean (ko)
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유경찬
팽정자
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(주)씨엔에이치엔지니어링
팽정자
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Priority to KR1020210190929A priority Critical patent/KR20220027044A/en
Publication of KR20220027044A publication Critical patent/KR20220027044A/en

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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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
    • F25B49/043—Operating continuously
    • 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
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
    • 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
    • F25B2600/00—Control issues
    • F25B2600/13—Pump speed control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The present invention relates to an absorption chiller with an integrated pulse control inverter. More specifically, an inverter control unit is integral with the absorption chiller so that the absorption chiller can be easily constructed and control errors due to the distance therebetween during installation can be minimized. The absorption chiller comprises: a freezer control unit provided in a chiller body to control the operation of the chiller body; a main cold water pump provided to pump cold water, supplied from a chiller, to a place where the cold water is to be used; an auxiliary cold water pump provided to operate when the main cold water pump is broken, pump the water, supplied from the chiller, to the place; and an inverter control unit provided in the chiller body to adjust and supply the frequency of power, supplied to the main cold water pump and the auxiliary cold water pump, in response to a control signal output from the freezer control unit. In addition, the absorption chiller can control the pump in proportion to the pressure in piping, thereby preventing the overoperation of the pump.

Description

펄스제어 인버터 일체형 흡수냉동기{Absorption chiller with integrated pulse control inverter}Pulse control inverter integrated absorption chiller

본 발명은 펄스제어 인버터 일체형 흡수냉동기에 관한 것으로서, 더욱 상세하게는 흡수냉동기에 있어서, 인버터제어부를 흡수냉동기에 일체로 형성하여서, 전력손실을 최소화하고, 시공이 용이도록 하며, 이격 설치로 인한 제어오류를 최소화할 수 있도록 함을 목적으로 한 것이다.The present invention relates to a pulse control inverter-integrated absorption chiller, and more particularly, in the absorption chiller, the inverter control unit is integrally formed with the absorption chiller to minimize power loss, facilitate construction, and control due to spaced apart installation This is intended to minimize errors.

일반적으로 흡수냉동기란 냉매가 증발할 때의 기화열을 이용하여 열교환기를 흐르는 물을 냉각시키고, 증발된 냉매를 응축시켜 재사용하는 냉동기이다.In general, an absorption refrigerator is a refrigerator that uses the heat of vaporization when a refrigerant evaporates to cool water flowing through a heat exchanger, and condenses the evaporated refrigerant for reuse.

이와 같은 흡수냉동기는 2개의 사이클 갖고 있어 냉방부하가 80%이하로 낮아지면 하나의 사이클을 정지시켜 에너지이용효율(COP)을 25% 향상시키고 혹서기를 제외한 대부분의 냉방시즌은 80% 이하의 냉방부하로 운전하여 운전비 절감하고 있는 것이다.This type of absorption chiller has two cycles, so when the cooling load falls below 80%, one cycle is stopped to improve the energy use efficiency (COP) by 25%. to reduce operating costs.

또한, 흡수식냉동기는 물을 냉매로 사용하는 무공해제품이고, 열에너지를 구동원으로 함으로써 하절기 전력집중을 방지할 수 있는 제품이다. 또한 진공상태에서 운전되어 매우 안전하며, 열교환기로 조합된 제품으로 자동운전이 가능하여 무인 운전을 할 수 있다.In addition, the absorption chiller is a non-polluting product that uses water as a refrigerant, and is a product that can prevent the concentration of electricity in summer by using thermal energy as a driving source. In addition, it is very safe because it is operated in a vacuum state, and it is a product combined with a heat exchanger and can be operated automatically, so it can be operated unattended.

상기 흡수식 냉동기는 제 1쉘(110)과, 제 2쉘(120)과, 제 3쉘(130)과, 제 1흡수열 열교환기(210)와, 제 2흡수열 열교환기(220)와, 제 1분배기(230)와, 제 2분배기(240)로 구성되게 구비되는 것이다.The absorption chiller includes a first shell 110 , a second shell 120 , a third shell 130 , a first absorption heat heat exchanger 210 , a second absorption heat heat exchanger 220 , It is provided to be composed of a first distributor 230 and a second distributor 240 .

여기서, 제 1쉘(110)은 증발기(111)와 흡수기(112)가 양측으로 구비되고, 증발기(111)와 흡수기(112) 사이에 제 1엘리미네이터가 구비되는 것이다.Here, the first shell 110 is provided with an evaporator 111 and an absorber 112 on both sides, and a first eliminator is provided between the evaporator 111 and the absorber 112 .

그리고, 제 2쉘(120)은 제 1재생기(121)와 보조 재생기(122) 및 응축기(123)가 하부에서부터 순차적으로 구비되고, 응축기(123)의 측면에 제 2엘리미네이터가 구비되는 것이다.And, in the second shell 120, the first regenerator 121, the auxiliary regenerator 122, and the condenser 123 are sequentially provided from the bottom, and the second eliminator is provided on the side of the condenser 123. .

또한, 제 3쉘(130)은 제 2재생기(131)와 보조 흡수기(132)가 상하고 구비되고, 제 2재생기(131)와 보조 흡수기(132) 사이에 제 3엘리미네이터가 구비되는 것이다.In addition, the third shell 130 is provided with the second regenerator 131 and the auxiliary absorber 132 upside down, and the third eliminator is provided between the second regenerator 131 and the auxiliary absorber 132 . .

한편, 저온 열교환기(140)와 고온 열교환기(150) 및 보조 열교환기(160)는 흡수액 라인을 통해 각 기기들과 연결되게 구비되는 것이다.Meanwhile, the low-temperature heat exchanger 140 , the high-temperature heat exchanger 150 , and the auxiliary heat exchanger 160 are provided to be connected to each device through an absorption liquid line.

또한, 제 1흡수열 열교환기(210)는 제 1쉘(110)의 흡수기(112) 상단에 설치되어 제 1쉘(110)에서 배출되는 묽어진 흡수액(희액)을 저온 열교환기(140)에서 흡수기(112) 상단으로 분사되는 농축된 흡수액(농액)의 열을 흡수하여 가열한 다음 저온 열교환기(140)로 공급할 수 있게 구비되는 것이다.In addition, the first absorption heat heat exchanger 210 is installed on the upper end of the absorber 112 of the first shell 110 to transfer the diluted absorption liquid (dilute liquid) discharged from the first shell 110 in the low temperature heat exchanger 140 . It is provided to absorb and heat the heat of the concentrated absorbent liquid (concentrate) sprayed to the upper end of the absorber 112 and then supply it to the low-temperature heat exchanger 140 .

또한, 제 2흡수열 열교환기(220)는 제 3쉘(130)의 보조 흡수기(132) 상단에 설치되어 제 3쉘(130)에서 배출되는 묽어진 보조 흡수액(보조 중간액)을 보조 열교환기(160)에서 보조 흡수기(132) 상단으로 분사되는 농축된 보조 흡수액(보조 농액)의 열을 흡수하여 가열한 다음 보조 열교환기(160)로 공급할 수 있게 구비되는 것이다.In addition, the second absorption heat heat exchanger 220 is installed at the upper end of the auxiliary absorber 132 of the third shell 130 to convert the diluted auxiliary absorption liquid (auxiliary intermediate liquid) discharged from the third shell 130 into the auxiliary heat exchanger. At 160 , the auxiliary absorber 132 is provided to absorb the heat of the concentrated auxiliary absorbent liquid (auxiliary concentrated liquid) sprayed to the upper end, heat it, and then supply it to the auxiliary heat exchanger 160 .

또한, 제 1분배기(240)는 전열관으로 이루어진 제 1쉘(110)의 증발기(111)의 중간 부위에 설치되어 증발기(111)로 분사되는 냉매를 일시 저장한 후 재낙하시켜 증발기(111)의 표면에 냉매가 골고루 접촉하도록 하게 구비되는 것이다.In addition, the first distributor 240 is installed in the middle portion of the evaporator 111 of the first shell 110 made of a heat transfer tube to temporarily store the refrigerant sprayed into the evaporator 111 and then fall again. It is provided so that the coolant evenly contacts the surface.

또한, 제 2분배기(230)는 전열관으로 이루어지는 제 1쉘(110)의 흡수기(112)의 중간 부위에 설치되어 흡수기(112)로 분사되는 농축된 흡수액을 일시 저장한 후 재낙하시켜 흡수기(112)의 표면에 흡수액이 골고루 접촉하도록 하게 구비되는 것이다.In addition, the second distributor 230 is installed in the middle portion of the absorber 112 of the first shell 110 made of a heat transfer tube to temporarily store the concentrated absorbent liquid sprayed to the absorber 112 and then fall again to the absorber 112 . ) is provided so that the absorbent liquid is in contact with the surface of the

이러한, 흡수식 냉동기는 냉방부하에 따라 냉수, 냉각수 유량이 변하지 않고 100% 범위에서 정유량으로 운전되고, 냉수/냉각수 펌프의 회전수는 냉방부하에 관계없이 항상 최대 ㎐로 일정하게 유지되며, 이로 인해 냉수/냉각수 펌프의 소비전력은 냉방부하조건에 관계없이 일정하게 소비되어, 온수 조절 밸브의 개도량에 따라 상기 냉동기의 냉수 펌프의 회전 주파수(㎐)를 인버터 제어하여 냉수 유량을 조절하고, 냉각수 입구 온도에 따라 상기 냉동기의 냉각수 펌프의 회전 주파수(㎐)를 인버터 제어하여 냉각수 유량을 조절하는 인버터제어부를 별도 구비하여 실시하고 있는 것이다.Such an absorption chiller is operated at a constant flow rate in the 100% range without changing the flow rate of cold water and cooling water depending on the cooling load, and the rotation speed of the cold water/cooling water pump is always kept constant at the maximum Hz regardless of the cooling load. The power consumption of the chilled water/cooling water pump is constantly consumed regardless of the cooling load condition, and the rotation frequency (Hz) of the chilled water pump of the refrigerator is controlled by the inverter according to the opening degree of the hot water control valve to adjust the cold water flow rate, and the cooling water inlet An inverter control unit for controlling the cooling water flow rate by inverter controlling the rotation frequency (Hz) of the cooling water pump of the refrigerator according to the temperature is separately provided and implemented.

그러나, 상기한 바와 같은 종래의 흡수식 냉동기는 인버터제어부가 흡수식냉동기 본체로부터 분리되어서 이격시공되어 있어 별도의 배선작업이 요구되고 설치공간에 제한이 따라 그 시공이 용이하지 않으며, 제어과정에 있어 신호손실이 발생할 수 있는 문제점이 있었다.However, in the conventional absorption chiller as described above, since the inverter control unit is separated from the absorption chiller body and is constructed apart, a separate wiring work is required, and the installation space is limited, so the construction is not easy, and signal loss in the control process There were problems that could arise.

대한민국 특허 제10-2074912호Korean Patent No. 10-2074912

이에, 본 발명은 상기한 바와 같은 종래의 흡수식 냉동기는 인버터제어부가 흡수식냉동기 본체로부터 분리되어서 이격시공되어 있어 별도의 배선작업이 요구되고 설치공간에 제한이 따라 그 시공이 용이하지 않으며, 제어과정에 있어 신호손실이 발생할 수 있는 문제점을 해결하고자 하게 구비되는 것이다.Accordingly, in the present invention, as described above, in the conventional absorption chiller as described above, the inverter control unit is separated from the absorption chiller body and is constructed to be spaced apart. Therefore, it is provided to solve a problem that may cause signal loss.

즉, 본 발명은 흡수식 냉동기에 있어서, 냉동기본체의 동작을 제어할 수 있게 냉동기본체에 구비되는 냉동기제어부, 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수주펌프, 냉수주펌프의 고장시 동작하여 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수보조펌프 및 냉동기제어부에서 출력되는 제어신호에 따라 냉수주펌프와 냉수보조펌프로 공급되는 전원의 주파수를 조절공급할 수 있게 냉동기본체에 구비되는 인버터제어부로 구성되게 구비되는 것을 특징으로 하게 구비되는 것이다. That is, the present invention relates to an absorption refrigerator, a refrigerator control unit provided in the refrigerating main body to control the operation of the refrigerating main body, a cold water main pump provided to pump and supply cold water supplied from the refrigerator to a place where the cold water is used, and a cold water main pump The frequency of the power supplied to the cold water main pump and the cold water auxiliary pump can be adjusted and supplied according to the control signal output from the cold water auxiliary pump and the refrigerator control unit, which are provided to pump and supply the cold water supplied from the refrigerator to the place where the cold water is used by operating in the event of a failure. It is provided characterized in that it is provided to be constituted by an inverter control unit provided in the refrigerating main body.

본 발명은 인버터제어부를 전원입력단과 제어신호입력단, 인버터소자, 제어전류출력부, 주펌프마그네틱스위치 및 보조펌프마그네틱스위치로 구성한 것을 특징으로 하는 것이다.The present invention is characterized in that the inverter control unit is composed of a power input stage, a control signal input stage, an inverter element, a control current output unit, a main pump magnetic switch, and an auxiliary pump magnetic switch.

본 발명은 사용자의 조작에 따른 펌프조작부의 주펌프마그네틱스위치와 보조펌프마그네틱스위치 중 어느 하나의 조작을 감지하여 온 동작되면 제어전류출력부를 통하여 출력되는 전력이 설정시간 동안 서서히 0Hz에 60Hz으로 증가펄스제어되게 하고 오프 동작되면 제어전류출력부를 통하여 출력되는 전력이 설정시간 동안 서서히 60Hz에 0Hz으로 감소펄스제어되게 하는 펌프펄스증감조작수단을 구비한 것을 특징으로 하는 것이다.The present invention detects the operation of any one of the main pump magnetic switch and the auxiliary pump magnetic switch of the pump operation unit according to the user's operation and turns on, the power output through the control current output unit gradually increases from 0 Hz to 60 Hz for a set time pulse It is characterized in that it comprises a pump pulse increase/decrease operation means for controlling the power output through the control current output unit to be gradually reduced from 60 Hz to 0 Hz for a set time when it is controlled and turned off.

본 발명은 펌프펄스증감조작수단은 펌프조작부의 동작조작신호를 감지하는 동작조작신호감지부와 상기 동작조작신호감지부를 통한 펌프의 동작조작신호감지에 따라 인버터제어부로 펄스증감신호를 출력하는 펌프펄스증감기동신호부로 구성된 것을 특징으로 하는 것이다.In the present invention, the pump pulse increase/decrease operation means includes an operation operation signal detection unit that detects an operation operation signal of the pump operation unit, and a pump pulse outputting a pulse increase/decrease signal to the inverter control unit according to the operation operation signal detection of the pump through the operation operation signal detection unit. It is characterized in that it is composed of an increase/decrease start signal unit.

따라서, 본 발명은 흡수냉동기에 있어서, 인버터제어부를 흡수냉동기에 일체로 형성함으로써, 흡수냉동기의 시공이 용이하고, 이격 설치로 인한 제어오류가 최소화되는 효과를 갖는 것이다.Therefore, in the absorption chiller, the present invention has the effect that the inverter control unit is integrally formed with the absorption chiller, so that the absorption chiller can be easily installed and control errors due to spaced apart installation are minimized.

도 1 내지 도 2는 종래 예시도.
도 3 은 본 발명의 실시예에 따른 구성 예시도.
도 4 및 도 5 는 본 발명의 실시예에 따른 인버터제어부 예시도.
도 6 은 본 발명의 다른 실시예를 보인 예시도.
도 7과 8은 본 발명의 또 다른 실시 예를 보인 예시도.1 to 2 are conventional exemplary views.
3 is an exemplary configuration diagram according to an embodiment of the present invention;
4 and 5 are exemplary views of an inverter control unit according to an embodiment of the present invention.
6 is an exemplary view showing another embodiment of the present invention.
7 and 8 are exemplary views showing another embodiment of the present invention.

이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, it will be described in detail with reference to the accompanying drawings.

본 발명은 흡수냉동기의 시공이 용이하고, 이격 설치로 인한 제어오류가 최소화할 수 있도록 한 것으로, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합할 수 있게 구비한 의미와 개념으로 해석되어야만 한다.The present invention is intended to facilitate the construction of an absorption chiller and to minimize control errors due to spaced apart installation. , based on the principle that the inventor can appropriately define the concept of a term in order to explain his invention in the best way, it should be interpreted with the meaning and concept provided to conform to the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변할 수 있게 구비한 것은 아니므로, 본 출원 시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and are not provided to represent all of the technical spirit of the present invention. It should be understood that there may be various equivalents and variations that may be substituted.

즉, 본 발명은 흡수식 냉동기에 있어서, 냉동기본체(100)와 냉동기제어부(200), 냉수주펌프(310), 냉수보조펌프(320) 및 인버터제어부(400)로 구성되게 구비되는 것이다. That is, in the present invention, in the absorption refrigerator, the refrigerator main body 100, the refrigerator control unit 200, the cold water main pump 310, the cold water auxiliary pump 320 and the inverter control unit 400 are provided.

상기 냉동기본체는 제 1쉘(110)과 제 2쉘(120), 제 3쉘(130), 제 1흡수열 열교환기(210), 제 2흡수열 열교환기(220), 제 1분배기(230) 및 제 2분배기(240)로 구성되게 구비되는 것이다.The refrigerating main body includes a first shell 110 , a second shell 120 , a third shell 130 , a first absorption heat heat exchanger 210 , a second absorption heat heat exchanger 220 , and a first distributor 230 . ) and the second divider 240 is provided.

상기 제 1쉘(110)은 증발기(111)와 흡수기(112)가 양측으로 구비되고, 증발기(111)와 흡수기(112) 사이에 제 1엘리미네이터가 설치 구비되는 것이다.The first shell 110 is provided with an evaporator 111 and an absorber 112 on both sides, and a first eliminator is installed between the evaporator 111 and the absorber 112 .

상기 제 2쉘(120)은 제 1재생기(121)와 보조 재생기(122) 및 응축기(123)가 하부에서부터 순차적으로 구비되고 설치되고, 응축기(123)의 측면에 제 2엘리미네이터가 설치 구비되는 것이다The second shell 120 is provided with a first regenerator 121, an auxiliary regenerator 122, and a condenser 123 sequentially from the bottom, and a second eliminator is installed on the side of the condenser 123. will become

상기 제 3쉘(130)은 제 2재생기(131)가 상부에 설치되고, 보조 흡수기(132)가 하부에 설치되며, 저면에 제 2재생기(131) 및 보조 흡수기(132)에서 각각 적하되는 흡수액이 한쪽으로 모여 배출이 용이하도록 형성하고, 제 2재생기(131)와 보조 흡수기(132) 사이에 제 3엘리미네이터가 설치 구비되는 것이다.In the third shell 130, the second regenerator 131 is installed on the top, the auxiliary absorber 132 is installed on the bottom, and the absorbent liquid dripped from the second regenerator 131 and the auxiliary absorber 132 on the bottom surface, respectively. They are gathered on one side to facilitate discharge, and a third eliminator is installed between the second regenerator 131 and the auxiliary absorber 132 .

상기 제 1흡수열 열교환기(210)는 제 1쉘(110)의 흡수기(112) 상단에 설치되어 제 1쉘(110)에서 배출되는 묽어진 흡수액(희액)을 저온 열교환기(140)에서 흡수기(112) 상단으로 분사되는 농축된 흡수액(농액)의 열을 흡수하여 가열한 다음 저온 열교환기(140)로 공급할 수 있게 구비되는 것이다.The first absorption heat heat exchanger 210 is installed on the upper end of the absorber 112 of the first shell 110 to convert the diluted absorption liquid (dilute liquid) discharged from the first shell 110 into the absorber in the low temperature heat exchanger 140 . (112) It is provided to absorb the heat of the concentrated absorbent liquid (concentrate) sprayed to the upper end, heat it, and then supply it to the low-temperature heat exchanger 140 .

상기 제 2흡수열 열교환기(220)는 제 3쉘(130)의 보조 흡수기(132) 상단에 설치되어 제 3쉘(130)에서 배출되는 묽어진 보조 흡수액(보조 중간액)을 보조 열교환기(160)에서 보조 흡수기(132) 상단으로 분사되는 농축된 보조 흡수액(보조 농액)의 열을 흡수하여 가열한 다음 보조 열교환기(160)로 공급할 수 있게 구비되는 것이다.The second absorption heat heat exchanger 220 is installed on the upper end of the auxiliary absorber 132 of the third shell 130 and transfers the diluted auxiliary absorption liquid (auxiliary intermediate liquid) discharged from the third shell 130 to the auxiliary heat exchanger ( 160 ) is provided to absorb heat of the concentrated auxiliary absorbent liquid (auxiliary concentrate) sprayed to the top of the auxiliary absorber 132 , heat it, and then supply it to the auxiliary heat exchanger 160 .

상기 제 1분배기(240)는 전열관으로 이루어진 제 1쉘(110)의 증발기(111)의 중간 부위에 설치되어 증발기(111)로 분사되는 냉매를 일시 저장한 후 재낙하시켜 증발기(111)의 표면에 냉매가 골고루 접촉할 수 있게 구비되는 것이다.The first distributor 240 is installed in the middle portion of the evaporator 111 of the first shell 110 made of a heat transfer tube, temporarily stores the refrigerant sprayed into the evaporator 111, and then falls again to the surface of the evaporator 111 . It is to be provided so that the refrigerant can contact evenly.

또한, 상기 냉동기제어부(200)는 냉동기본체의 동작을 제어할 수 있게 냉동기본체에 구비되는 것이다.In addition, the refrigerator control unit 200 is provided in the refrigerator main body to control the operation of the refrigerator main body.

또한, 상기 냉수주펌프(310)는 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 것이다.In addition, the cold water main pump 310 is provided to pump and supply the cold water supplied from the refrigerator to the place where the cold water is used.

또한, 상기 냉수보조펌프(320)는 냉수주펌프의 고장시 동작하여 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 것이다.In addition, the cold water auxiliary pump 320 is provided to pump and supply the cold water supplied from the refrigerator to the place where the cold water is used by operating when the main cold water pump fails.

또한, 상기 인버터제어부(400)는 냉동기제어부(200)에서 출력되는 제어신호에 따라 냉수주펌프(310)와 냉수보조펌프(320)로 공급되는 전원의 주파수를 조절공급할 수 있게 냉동기본체(100)에 구비되는 것이다.In addition, the inverter control unit 400 adjusts the frequency of the power supplied to the cold water main pump 310 and the cold water auxiliary pump 320 according to the control signal output from the refrigerator control unit 200 , the refrigerator main body 100 will be provided in

상기 인버터제어부(400)는 전원입력단(410)과 제어신호입력단(420), 인버터소자(430), 제어전류출력부(440), 주펌프마그네틱스위치(451) 및 보조펌프마그네틱스위치(452)로 구성되게 구비되는 것이다.The inverter control unit 400 includes a power input terminal 410, a control signal input terminal 420, an inverter element 430, a control current output unit 440, a main pump magnetic switch 451, and an auxiliary pump magnetic switch 452. It will be configured to be provided.

상기 전원입력단(410)은 20KW 이상의 3상 60Hz의 전원이 입력되게 구비되는 것이다.The power input terminal 410 is provided to input power of 20KW or more of three-phase 60Hz.

상기 제어신호입력단(420)은 냉동기제어부(200)에서 리턴되는 냉수온도에 따라 출력되는 제어신호가 입력되게 구비되는 것이다.The control signal input terminal 420 is provided to input a control signal output according to the cold water temperature returned from the refrigerator control unit 200 .

상기 인버터소자(430)는 제어신호입력단(420)을 통하여 입력되는 전력의 주파수를 제어출력하게 구비되는 것이다.The inverter element 430 is provided to control and output the frequency of the power input through the control signal input terminal 420 .

상기 제어전류출력부(440)는 인버터소자(430)에 의하여 주파수가 조절되는 3상 전력이 출력되게 구비되는 것이다.The control current output unit 440 is provided to output three-phase power whose frequency is controlled by the inverter element 430 .

상기 주펌프마그네틱스위치(451)는 냉수주펌프(310)로 공급되는 전력공급을 사용자의 조작에 따라 스위칭할 수 있게 구비되는 것이다.The main pump magnetic switch 451 is provided to switch the power supply supplied to the cold water main pump 310 according to a user's operation.

상기 보조펌프마그네틱스위치(452)는 냉수보조펌프(320)로 공급되는 전력공급을 사용자의 조작에 따라 스위칭할 수 있게 구비되는 것이다.The auxiliary pump magnetic switch 452 is provided to switch the power supply supplied to the cold water auxiliary pump 320 according to a user's operation.

한편, 본 발명의 실시에 있어서, 사용자의 조작에 따른 펌프조작부(330)의 주펌프마그네틱스위치(451)와 보조펌프마그네틱스위치(452) 중 어느 하나의 조작을 감지하여 온 동작되면 제어전류출력부(440)를 통하여 출력되는 전력이 설정시간 동안 서서히 0Hz에 60Hz으로 증가펄스제어되게 하고 오프 동작되면 제어전류출력부(440)를 통하여 출력되는 전력이 설정시간 동안 서서히 60Hz에 0Hz으로 감소펄스제어되게 하는 펌프펄스증감조작수단을 구비하여 실시할 수 있는 것이다.On the other hand, in the embodiment of the present invention, when the operation is turned on by detecting the operation of any one of the main pump magnetic switch 451 and the auxiliary pump magnetic switch 452 of the pump operation unit 330 according to the user's operation, the control current output unit The power output through 440 is pulse controlled to gradually increase from 0 Hz to 60 Hz for a set time, and when the off operation is performed, the power output through the control current output unit 440 is pulse controlled to gradually decrease from 60 Hz to 0 Hz for a set time It can be implemented by providing a pump pulse increase/decrease operation means.

상기 펌프펄스증감조작수단은 펌프조작부(330)의 동작조작신호를 감지하는 동작조작신호감지부(510)와 상기 동작조작신호감지부(510)를 통한 펌프의 동작조작신호감지에 따라 인버터제어부(400)로 펄스증감신호를 출력하는 펌프펄스증감기동신호부(520)로 구성하여 실시할 수 있는 것이다.The pump pulse increase/decrease operation means includes an operation operation signal detection unit 510 that detects an operation operation signal of the pump operation unit 330 and an inverter control unit ( 400), which can be implemented by configuring the pump pulse increase/decrease start signal unit 520 for outputting a pulse increase/decrease signal.

또한, 본 발명의 실시에 있어서, 펌프펄스증감조작수단에 의하여 펄스증감제어 이전에 사용자의 조작에 따른 펌프조작부(330)의 주펌프마그네틱스위치(451)와 보조펌프마그네틱스위치(452) 중 어느 하나가 동작조작되면 제어전류출력부(440)를 통하여 출력되는 전력을 2초 이내 동안 최고주파수로 출력되게 하는 기동펄스제어수단을 구비하여 실시할 수 있는 것이다.In addition, in the practice of the present invention, any one of the main pump magnetic switch 451 and the auxiliary pump magnetic switch 452 of the pump operation unit 330 according to the user's operation before the pulse increase/decrease control by the pump pulse increase/decrease operation means When is operated, the power output through the control current output unit 440 is outputted at the highest frequency for less than 2 seconds.

상기 기동펄스제어수단은 동작조작신호감지부(510)를 통한 펌프의 동작조작신호감지에 따라 인버터제어부(400)로 최고주파수로 출력되게 신호를 입력하는 펌프초기기동신호부(530)와 상기 펌프초기기동신호부(530)의 동작시 펌프펄스증감기동신호부(520)의 동작을 지연시킬 수 있게 지연신호를 입력하는 펄스증가기동지연신호출력부 및 펌프초기기동신호부(530)의 신호에 의한 펌프의 회전시 이를 감지하여 펌프초기기동신호부(530)의 동작을 정지시킬 수 있게 기동완료감지부(540)을 구비하여 실시할 수 있는 것이다. The start pulse control means includes a pump initial start signal unit 530 for inputting a signal to be output at the highest frequency to the inverter control unit 400 according to the detection of an operation operation signal of the pump through the operation operation signal detection unit 510 and the pump. To the signal of the pulse increase start delay signal output unit and the pump initial start signal unit 530 for inputting a delay signal to delay the operation of the pump pulse increase/decrease start signal unit 520 during the operation of the initial start signal unit 530 It can be carried out by providing a start-up completion detecting unit 540 to detect the rotation of the pump and stop the operation of the pump initial start signal unit 530 .

또한, 본 발명의 실시에 있어서, 인버터제어부(400)에 의한 펌프의 제어과정에 펌프 배출관의 수압이 설정압력의 이상 상승시 펌프가 감속운전되도록 인버터제어부(40)에서 출력되는 펄스가 제어되게 하는 압력비례제어신호출력부(610)을 구비하고, 펌프 배출관에 내부의 압력을 감지하는 수압센서(620)를 구비한 것을 특징으로 하는 것이다.In addition, in the practice of the present invention, in the control process of the pump by the inverter control unit 400, the pulse output from the inverter control unit 40 is controlled so that the pump is decelerated when the water pressure in the pump discharge pipe rises above the set pressure. It is characterized in that it is provided with a pressure proportional control signal output unit (610), and a water pressure sensor (620) for detecting the pressure inside the pump discharge pipe.

한편, 상기 압력비례제어신호출력부(610)에 의한 압력비례펄스제어에 의하여도 설정된 시간동안 수압센서(620)를 통하여 입력되는 압력이 설정압력에 도달되지 않으면 냉동기제어부(200)에 알람신호를 발생시킬 수 있게 압력이상신호를 출력하는 압력이상신호출력부(630)를 구비하여 실시할 수 있는 것이다.On the other hand, if the pressure input through the water pressure sensor 620 does not reach the set pressure for a set time even by the pressure proportional pulse control by the pressure proportional control signal output unit 610, an alarm signal is sent to the refrigerator control unit 200 It can be implemented by having a pressure abnormal signal output unit 630 for outputting a pressure abnormal signal to be generated.

이하, 본 발명의 적용실시에 따른 작용효과에 대하여 설명하면 다음과 같다.Hereinafter, the effect of the application of the present invention will be described as follows.

상기한 바와 같이 흡수식 냉동기에 있어서, 냉동기본체(100)의 동작을 제어할 수 있게 냉동기본체에 구비되는 냉동기제어부(200), 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수주펌프(310), 냉수주펌프(310)의 고장시 동작하여 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수보조펌프(320) 및 냉동기제어부(200)에서 출력되는 제어신호에 따라 냉수주펌프(310)와 냉수보조펌프(320)로 공급되는 전원의 주파수를 조절공급할 수 있게 냉동기본체에 구비되는 인버터제어부(400)로 구성된 발명을 적용하여 실시하게 되면, 흡수냉동기의 시공이 용이하고, 이격 설치로 인한 제어오류가 최소화되게 구비되는 것이다.As described above, in the absorption chiller, the chiller control unit 200 provided in the refrigeration main body to control the operation of the refrigeration main body 100, and the cold water main pump provided to pump and supply the cold water supplied from the refrigerator to the cold water use place 310, the cold water auxiliary pump 320 provided to pump and supply the cold water supplied from the refrigerator to the cold water use place by operating when the cold water main pump 310 fails. If the invention consisting of the inverter control unit 400 provided in the main body of the refrigerator is applied to control the frequency of the power supplied to the main pump 310 and the cold water auxiliary pump 320 and is implemented, the construction of the absorption chiller is easy and , it is provided to minimize control errors due to spaced apart installation.

또한, 본 발명의 실시에 있어, 사용자의 조작에 따른 펌프조작부(330)의 주펌프마그네틱스위치(451)와 보조펌프마그네틱스위치(452) 중 어느 하나의 조작을 감지하여 온 동작되면 제어전류출력부(440)를 통하여 출력되는 전력이 설정시간 동안 서서히 0Hz에 60Hz으로 증가펄스제어되게 하고 오프 동작되면 제어전류출력부(440)를 통하여 출력되는 전력이 설정시간 동안 서서히 60Hz에 0Hz으로 감소펄스제어되게 하는 펌프펄스증감조작수단을 구비하고, 상기 펌프펄스증감조작수단은 펌프조작부(330)의 동작조작신호를 감지하는 동작조작신호감지부(510)와 상기 동작조작신호감지부(510)를 통한 펌프의 동작조작신호감지에 따라 인버터제어부(400)로 펄스증감신호를 출력하는 펌프펄스증감기동신호부(520)로 구성한 본 발명을 적용하여 실시하게 되면, 펌프의 초기동작시 서서히 속도가 증가되어 배관 내부에서 급격한 압력변화가 방지되게 펌프의 정지시도 서서히 속도가 감속되어 배관 내부에서 급격한 압력변화가 방지되는 것이다.In addition, in the embodiment of the present invention, when the operation is turned on by detecting the operation of any one of the main pump magnetic switch 451 and the auxiliary pump magnetic switch 452 of the pump operation unit 330 according to the user's operation, the control current output unit The power output through 440 is pulse controlled to gradually increase from 0 Hz to 60 Hz for a set time, and when the off operation is performed, the power output through the control current output unit 440 is pulse controlled to gradually decrease from 60 Hz to 0 Hz for a set time and a pump pulse increase/decrease operation means to When the present invention composed of a pump pulse increase/decrease start signal unit 520 that outputs a pulse increase/decrease signal to the inverter control unit 400 according to the detection of an operation operation signal of In order to prevent a sudden change in pressure inside, the speed is gradually reduced even when the pump is stopped to prevent a sudden change in pressure inside the pipe.

또한, 본 발명의 실시에 있어, 펌프펄스증감조작수단에 의하여 펄스증감제어 이전에 사용자의 조작에 따른 펌프조작부(330)의 주펌프마그네틱스위치(451)와 보조펌프마그네틱스위치(452) 중 어느 하나가 동작조작되면 제어전류출력부(440)를 통하여 출력되는 전력을 2초 이내 동안 최고주파수로 출력되게 하는 기동펄스제어수단을 구비하고, 상기 기동펄스제어수단을 동작조작신호감지부(510)를 통한 펌프의 동작조작신호감지에 따라 인버터제어부(400)로 최고주파수로 출력되게 신호를 입력하는 펌프초기기동신호부(530)와 상기 펌프초기기동신호부(530)의 동작시 펌프펄스증감기동신호부(520)의 동작을 지연시킬 수 있게 지연신호를 입력하는 펄스증가기동지연신호출력부 및 펌프초기기동신호부(530)의 신호에 의한 펌프의 회전시 이를 감지하여 펌프초기기동신호부(530)의 동작을 정지시킬 수 있게 기동완료감지부(540)을 구비한 본 발명을 적용하여 실시하게 되면, 펌프의 초기동작시 펌프의 기동이 명확하게 이루어지는 것이다.In addition, in the practice of the present invention, any one of the main pump magnetic switch 451 and the auxiliary pump magnetic switch 452 of the pump operation unit 330 according to the user's operation before the pulse increase/decrease control by the pump pulse increase/decrease operation means has a starting pulse control means for outputting the power output through the control current output unit 440 at the highest frequency for less than 2 seconds when operation is operated, and the operation operation signal detection unit 510 for the starting pulse control means The pump pulse increase/decrease start signal during operation of the pump initial start signal unit 530 and the pump initial start signal unit 530 that input a signal to be output at the highest frequency to the inverter control unit 400 according to the detection of the operation signal of the pump through the When the pump is rotated by the signal of the pulse increase start delay signal output unit and the pump initial start signal unit 530 for inputting a delay signal so as to delay the operation of the unit 520, it is sensed and the pump initial start signal unit 530 ), if the present invention provided with the start-up completion detection unit 540 to stop the operation is applied and implemented, the start of the pump is clearly made during the initial operation of the pump.

또한, 본 발명의 실시에 있어, 인버터제어부(400)에 의한 펌프의 제어과정에 펌프 배출관의 수압이 설정압력의 이상 상승시 펌프가 감속운전되도록 인버터제어부(40)에서 출력되는 펄스가 제어되게 하는 압력비례제어신호출력부(610)을 구비하고, 펌프 배출관에 내부의 압력을 감지하는 수압센서(620)를 구비한 본 발명을 적용하여 실시하게 되면, 펌프의 제어가 배관의 압력에 비례하여 동작되어 펌프의 과동작이 방지되는 것이다.In addition, in the practice of the present invention, the pulse output from the inverter control unit 40 is controlled so that the pump is decelerated to operate when the water pressure in the pump discharge pipe rises above the set pressure during the control process of the pump by the inverter control unit 400 When the present invention having a pressure proportional control signal output unit 610 and a water pressure sensor 620 for sensing internal pressure in the pump discharge pipe is applied and implemented, the control of the pump operates in proportion to the pressure of the pipe This will prevent over-operation of the pump.

또한, 본 발명의 실시에 있어 상기 압력비례제어신호출력부(610)에 의한 압력비례펄스제어에 의하여도 설정된 시간동안 수압센서(620)를 통하여 입력되는 압력이 설정압력에 도달되지 않으면 냉동기제어부(200)에 알람신호를 발생시킬 수 있게 압력이상신호를 출력하는 압력이상신호출력부(630)를 구비한 본 발명을 적용하여 실시하게 되면, 동작과정에서 배관 내부의 이상을 압력으로 방지하고 다른 기기의 고장과 사고를 방지할 수 있는 것이다.In addition, in the practice of the present invention, if the pressure input through the water pressure sensor 620 does not reach the set pressure for a set time even by the pressure proportional pulse control by the pressure proportional control signal output unit 610, the refrigerator control unit ( 200), if the present invention having a pressure abnormal signal output unit 630 for outputting an abnormal pressure signal so as to generate an alarm signal is applied and implemented, the abnormality inside the pipe is prevented with pressure in the operation process and other devices failure and accidents can be prevented.

100 : 냉동기본체
200 : 냉동기제어부
310 : 냉수주펌프 320 : 냉수보조펌프
330 : 펌프조작부
400 : 인버터제어부
410 : 전원입력단 420 : 제어신호입력단
430 : 인버터소자 440 : 제어전류출력부
451 : 주펌프마그네틱스위치 452 : 보조펌프마그네틱스위치
510 : 동작조작신호감지부 520 : 펌프펄스증감기동신호부
530 : 펌프초기기동신호부
540 : 기동완료감지부
610 : 압력비례제어신호출력부
620 : 수압센서
630 : 압력이상신호출력부100: refrigeration body
200: refrigerator control unit
310: cold water main pump 320: cold water auxiliary pump
330: pump control unit
400: inverter control unit
410: power input terminal 420: control signal input terminal
430: inverter element 440: control current output unit
451: main pump magnetic switch 452: auxiliary pump magnetic switch
510: operation operation signal detection unit 520: pump pulse increase/decrease start signal unit
530: pump initial start signal unit
540: start completion detection unit
610: pressure proportional control signal output unit
620: water pressure sensor
630: pressure abnormal signal output unit

Claims (3)

흡수식 냉동기에 있어서;
냉동기본체의 동작을 제어할 수 있게 냉동기본체에 구비되는 냉동기제어부, 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수주펌프, 냉수주펌프의 고장시 동작하여 냉동기에서 공급되는 냉수를 냉수사용처로 펌핑공급할 수 있게 구비되는 냉수보조펌프 및 냉동기제어부에서 출력되는 제어신호에 따라 냉수주펌프와 냉수보조펌프로 공급되는 전원의 주파수를 조절공급할 수 있게 냉동기본체에 구비되는 인버터제어부로 구성되며;
상기 인버터제어부는 전원이 입력되는 전원입력단과 상기 냉동기제어부에서 리턴된 냉수온도를 적용하는 제어신호입력단, 상기 제어신호입력단을 통하여 입력신호를 제어출력하는 인버터소자 및 제어전류출력부, 조작에따라 전력공급을 스위칭하는 주펌프마그네틱스위치 및 보조펌프마그네틱스위치로 구성되는 것을 특징으로 하는 펄스제어 인버터 일체형 흡수냉동기.
for absorption chillers;
A refrigerator control unit provided in the refrigerating main body to control the operation of the refrigerating main body, a cold water main pump provided to pump and supply the cold water supplied from the refrigerating machine to a place where the cold water is used, and the cold water main pump to operate in case of failure It consists of a cold water auxiliary pump provided to pump and supply cold water to a place of use, and an inverter control unit provided in the main body of the refrigerator to adjust and supply the frequency of the power supplied to the cold water main pump and cold water auxiliary pump according to the control signal output from the refrigerator control unit. ;
The inverter control unit includes a power input terminal to which power is input, a control signal input terminal to which the cold water temperature returned from the refrigerator control unit is applied, an inverter device and a control current output unit for controlling and outputting an input signal through the control signal input terminal, and power according to operation Pulse control inverter integrated absorption chiller, characterized in that it consists of a main pump magnetic switch and an auxiliary pump magnetic switch for switching supply.
 제 1항에 있어서,
사용자가 펌프조작부의 주펌프마그네틱스위치와 보조펌프마그넥티스위치 중 어느 하나의 동작을 감지하여 온 동작되면 제어전류출력부를 통하여 출력되는 전력이 설정시간 동안 서서히 0Hz에 60Hz으로 증가펄스제어되게 하고 오프 동작되면 제어전류출력부를 통하여 출력되는 전력이 설정시간 동안 서서히 60Hz에 0Hz으로 감소펄스제어되게 하는 펌프펄스증감조작수단을 구비한 것을 특징으로 하는 펄스제어 인버터 일체형 흡수냉동기.The method of claim 1,
When the user senses the operation of any one of the main pump magnetic switch and the auxiliary pump magnetic switch of the pump control unit and turns on, the power output through the control current output unit is pulse-controlled to gradually increase from 0Hz to 60Hz during the set time and turn off A pulse-controlled inverter-integrated absorption chiller, characterized in that it comprises a pump pulse increase/decrease operation means that, when operated, causes the power output through the control current output unit to be gradually reduced from 60 Hz to 0 Hz for a set time. 제 2항에 있어서,
상기 펌프펄스증감조작수단은 펌프조작부의 동작조작신호를 감지하는 동작조작신호감지부와 상기 동작조작신호감지부를 통한 펌프의 동작조작신호감지에 따라 인버터제어부로 펄스증감신호를 출력하는 펌프펄스증감기동신호부로 구성한 것을 특징으로 하는 펄스제어 인버터 일체형 흡수냉동기.3. The method of claim 2,
The pump pulse increase/decrease operation means includes a pump pulse increase/decrease operation for outputting a pulse increase/decrease signal to the inverter control unit according to the operation operation signal detection unit for detecting the operation operation signal of the pump operation unit and the operation operation signal of the pump through the operation operation signal detection unit Pulse control inverter integrated absorption chiller, characterized in that it is composed of a signal part.
KR1020210190929A 2021-12-29 2021-12-29 Absorption chiller with integrated pulse control inverter KR20220027044A (en)

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Citations (1)

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Publication number Priority date Publication date Assignee Title
KR102074912B1 (en) 2019-04-16 2020-03-17 (주)월드에너지 Refrigerator for controlling pump inverter depending on loading amount

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102074912B1 (en) 2019-04-16 2020-03-17 (주)월드에너지 Refrigerator for controlling pump inverter depending on loading amount

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