KR102180190B1 - Constant temperature and constant humidity apparatus of rack structure - Google Patents

Constant temperature and constant humidity apparatus of rack structure Download PDF

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KR102180190B1
KR102180190B1 KR1020190125000A KR20190125000A KR102180190B1 KR 102180190 B1 KR102180190 B1 KR 102180190B1 KR 1020190125000 A KR1020190125000 A KR 1020190125000A KR 20190125000 A KR20190125000 A KR 20190125000A KR 102180190 B1 KR102180190 B1 KR 102180190B1
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air
evaporation
refrigerant
inner space
coil
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KR1020190125000A
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Korean (ko)
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최은호
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최은호
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/208—Liquid cooling with phase change
    • H05K7/20818—Liquid cooling with phase change within cabinets for removing heat from server blades
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20309—Evaporators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20318—Condensers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a constant temperature and humidity rack for computing equipment, and more particularly, to a rack for computing equipment provided with a cooling device capable of performing constant temperature and humidity control. According to the present invention, a constant temperature and humidity rack for computing equipment, includes: a rack housing in which an inner space for accommodating the computing equipment is formed; an evaporation unit that sucks air in the inner space of the rack housing and returns the air after heat exchange with a refrigerant; and a condensing unit to receive a compressed refrigerant from the evaporation unit and to exchange heat with external air. The evaporation unit includes: an evaporator fan to introduce air from the inner space through the indoor air inlet and to discharge air back to the inner space through the indoor air outlet; an evaporation coil provided on a path of the air in an inner space part from the indoor air inlet to the indoor air outlet to perform heat exchange between the refrigerant and the air in the inner space part, and provided in a state inclined at a predetermined angle with respect to the horizontal direction; a compressor that receives the refrigerant from the evaporation coil, compresses the refrigerant, and delivers the refrigerant to the condensing unit. The condensing unit may include a condensing coil to exchange heat with the refrigerant delivered from the compressor and the external air; and a condenser fan to introduce the external air such that the external air passes through the condensing coil.

Description

전산장비용 항온항습 랙{Constant temperature and constant humidity apparatus of rack structure}Constant temperature and constant humidity apparatus of rack structure for computing equipment

본 발명은 전산장비용 항온항습 랙에 관한 것으로서, 보다 상세하게는 항온항습 제어가 가능한 냉각장치를 구비하는 전산장비용 랙에 관한 것이다.The present invention relates to a constant temperature and humidity rack for computing equipment, and more particularly, to a rack for computing equipment having a cooling device capable of constant temperature and humidity control.

모든 업무의 전산화로 인하여 업무 처리가 빨라짐과 동시에 정보 처리량이 많아지고 있는 오늘날 서버, 스토리지, 네트워크 장비 등의 관리는 매우 중요하다. 이들 장비들은 랙 구조물에 수납되는 상태에서 IDC, 전산실, 사무실 또는 문서창고와 같은 간이 룸 등에 설치되어 관리되도록 하였다.Management of servers, storage, network equipment, etc. is very important today, where business processing speeds up due to computerization of all tasks and information throughput is increasing. These equipments were installed and managed in IDCs, computer rooms, and simple rooms such as offices or document warehouses while being stored in a rack structure.

랙 구조물이 설치되는 IDC, 전산실, 사무실 또는 문서창고와 같은 간이 룸 등에는 랙 구조물에 수납되는 장비들의 냉방효율을 최대화시키기 위한 냉난방 시스템이 설치되도록 하였다. 온도와 습도의 관리가 어려웠다. 즉, 장비는 높은 발열량으로 온도와 습도의 관리는 필수적이나, 냉난방 시스템의 경우에는 습도 관리가 안되므로, 부대설비공사의 비용 추가를 통해 항습을 위한 급수배관을 설치하여야 함은 물론, 상기와 같은 급수 배관의 경우 동파 및 역류 등의 문제가 발생하였다.In IDCs where rack structures are installed, computer rooms, simple rooms such as offices or document warehouses, a cooling and heating system is installed to maximize the cooling efficiency of equipment stored in the rack structure. It was difficult to manage temperature and humidity. In other words, because the equipment has a high calorific value, it is essential to manage temperature and humidity, but in the case of a cooling/heating system, humidity management is not possible. Therefore, a water supply pipe for humidity and humidity must be installed by adding additional equipment construction costs. In the case of piping, problems such as freeze and reverse flow occurred.

도 1 및 도 2는 각각 종래의 전산장비용 랙 및 이의 냉각장치를 나타내는 개략도이다. 도 1 및 도 2를 참조하여 설명하면, 기존의 전산장비용 랙 장치(10p)의 경우 랙 하우징 내의 내측공간부(S1)의 공기를 냉각하여 다시 되돌리는 방식을 이용하였다. 이러한 장치의 경우 압축기(210p), 응축코일(110p) 및 증발코일(230p)을 통하여 내측공간부의 에어를 냉각하게 되며, 응축기팬(160p)을 통하여 연교환된 외기를 배출하게 된다. 이러한 랙 장치의 경우 단순히 랙에서 발생되는 발생열을 냉각하여 온도상승을 방지하는 장치로서, 습도의 제어가 불가능하여 온도 강하 시 습도가 증가하여 랙의 유리창에 성애가 발생하는 등의 문제가 있으며, 반대로 가습기능도 없다.1 and 2 are schematic diagrams showing a conventional rack for computing equipment and a cooling device thereof, respectively. Referring to FIGS. 1 and 2, in the case of the conventional rack device 10p for computing equipment, a method of cooling and returning the air in the inner space portion S1 in the rack housing was used. In the case of such a device, the air in the inner space is cooled through the compressor 210p, the condensation coil 110p, and the evaporation coil 230p, and the exchanged outside air is discharged through the condenser fan 160p. In the case of such a rack device, it is a device that prevents temperature rise by simply cooling the heat generated in the rack, and it is impossible to control the humidity, so when the temperature drops, the humidity increases, and there is a problem such as frost formation on the glass window of the rack. There is no humidification function.

본 발명은 냉방 기능 뿐 아니라 냉방제습, 제습 및 가습 운전이 가능한 전산장비용 랙 장치를 제공한다.The present invention provides a rack device for computing equipment capable of cooling, dehumidifying, dehumidifying, and humidifying operations as well as cooling functions.

본 발명에 따른 전산장비용 항온항습랙은 전산장비를 수용하는 내측공간부가 형성되는 랙 하우징; 상기 랙 하우징의 내측공간부의 에어를 흡입하여 냉매와 열교환 후 되돌리는 증발부; 및 상기 증발부로부터 압축된 냉매를 받아 외기와 열교환하는 응축부;를 포함하고,The constant temperature and humidity rack for computing equipment according to the present invention comprises: a rack housing in which an inner space for accommodating the computing equipment is formed; An evaporation unit that sucks air in the inner space of the rack housing and returns it after heat exchange with the refrigerant; And a condensing unit for receiving the compressed refrigerant from the evaporation unit and exchanging heat with outside air,

상기 증발부는, 실내공기유입구를 통하여 상기 내측공간부의 에어를 유입시켜 실내공기배출구를 통하여 상기 내측공간부로 에어를 다시 배출하는 증발기팬; 상기 실내공기유입구로부터 상기 실내공기배출구로 이어지는 내측공간부 에어의 경로 상에 구비되어 상기 냉매와 상기 내측공간부 에어 간의 열교환을 수행하고, 수평방향에 대하여 일정각도 기울어진 상태로 구비되는 증발코일; 및 상기 증발코일로부터 냉매를 전달받아 압축한 후 상기 응축부로 전달하는 압축기;를 포함하고,The evaporation unit may include an evaporator fan for introducing air from the inner space through an indoor air inlet and discharging air to the inner space through an indoor air outlet; An evaporation coil provided on the path of the air in the inner space part leading from the indoor air inlet to the indoor air outlet to perform heat exchange between the refrigerant and the air in the inner space part, and provided in a state inclined at a predetermined angle with respect to the horizontal direction; And a compressor that receives the refrigerant from the evaporation coil, compresses it, and delivers it to the condensing unit,

상기 응축부는, 상기 압축기로부터 전달되는 냉매와 외기를 열교환시키는 응축코일; 및 외기가 상기 응축코일을 경유하도록 유입시키는 응축기팬;을 포함한다.The condensing unit may include a condensing coil for heat-exchanging the refrigerant delivered from the compressor with outside air; And a condenser fan for introducing outside air to pass through the condensing coil.

또한 상기 증발기 팬을 제어하여 상기 증발코일에서의 면풍속이 2.0 내지 2.2m/s인 제1 제어상태와 상기 증발코일에서의 면풍속이 1.5 내지 2.0 m/s인 제2 제어상태로 제어하는 제어부를 포함할 수 있다.In addition, a control unit that controls the evaporator fan to control the first control state in which the surface wind speed in the evaporation coil is 2.0 to 2.2 m/s and the second control state in which the surface wind speed in the evaporation coil is 1.5 to 2.0 m/s. It may include.

또한 상기 실내공기유입구로부터 상기 증발코일을 경유하지 않고 상기 증발기팬 측으로 직접 공기를 일정량 바이패스 시키는 댐퍼를 더 포함할 수 있다.In addition, it may further include a damper for bypassing a certain amount of air directly to the evaporator fan side without passing through the evaporation coil from the indoor air inlet.

또한 상기 증발기 팬과 상기 댐퍼를 제어하여 제3 제어상태로 제어하는 제어부를 포함하되, 상기 제3 제어상태는 상기 증발코일에서의 면풍속이 1.0 내지 1.5 m/s이고, 상기 댐퍼의 개도율을 50% 내지 100%일 수 있다.In addition, a control unit for controlling the evaporator fan and the damper to a third control state, wherein in the third control state, the surface wind speed in the evaporation coil is 1.0 to 1.5 m/s, and the opening rate of the damper is It may be 50% to 100%.

또한 상기 증발코일에 물을 분사하는 급수부;를 더 포함할 수 있다.In addition, it may further include a; water supply unit for spraying water to the evaporation coil.

또한 상기 증발기 팬, 상기 댐퍼 및 상기 급수부를 제어하여 제4 제어상태로 제어하는 제어부를 포함하되, 상기 제4 제어상태는 상기 증발코일에서의 면풍속이 1.5 내지 2.0 m/s이고, 상기 댐퍼의 개도율이 20% 내지 50%이고, 상기 급수부로부터 물이 공급되도록 제어할 수 있다.In addition, it includes a control unit for controlling the evaporator fan, the damper, and the water supply unit to a fourth control state, wherein in the fourth control state, the surface wind speed in the evaporation coil is 1.5 to 2.0 m/s, and the damper The opening rate is 20% to 50%, and water can be controlled to be supplied from the water supply unit.

또한 상기 증발코일로부터 낙하하는 물을 집수하는 드레인플레이트;를 포함할 수 있다.In addition, it may include a; a drain plate for collecting water falling from the evaporation coil.

또한 상기 응축부는 상기 랙하우징의 상단부에 구비되고, 상기 증발부는 상기 랙하우징의 하단부에 구비될 수 있다.In addition, the condensing part may be provided at an upper end of the rack housing, and the evaporation part may be provided at a lower end of the rack housing.

또한 상기 증발기팬은 브러시리스 DC 모터를 구비할 수 있다.In addition, the evaporator fan may include a brushless DC motor.

또한 개도율을 제어하여 상기 증발코일로 유입되는 냉매량을 조절하는 팽창밸브를 포함할 수 있다.In addition, it may include an expansion valve to control the opening rate to control the amount of refrigerant introduced into the evaporation coil.

또한 상기 냉매는 에어일 수 있다.Also, the refrigerant may be air.

본 발명은 댐퍼 및 급수부를 이용하여 냉방 기능 뿐 아니라 냉방제습, 제습 및 가습 운전이 가능하도록 하여 항온항습 제어를 수행할 수 있도록 한다.In the present invention, not only a cooling function but also a cooling dehumidification, dehumidification, and humidification operation are possible using a damper and a water supply unit to perform constant temperature and humidity control.

도 1 및 도 2는 각각 종래의 전산장비용 랙 및 이의 냉각장치를 나타내는 개략도이다.
도 3은 본 발명의 일 실시예에 따른 전산장비용 항온항습 랙을 나타내는 개략도이다.
도 4는 일 실시예에 따른 전산장비용 항온항습 랙의 냉각장치를 나타내는 개략도이다.1 and 2 are schematic diagrams showing a conventional rack for computing equipment and a cooling device thereof, respectively.
3 is a schematic diagram showing a constant temperature and humidity rack for computing equipment according to an embodiment of the present invention.
4 is a schematic diagram showing a cooling device of a constant temperature and humidity rack for computing equipment according to an embodiment.

이하 첨부된 도면을 참조하여 본 발명의 실시예를 설명한다. 특별한 정의나 언급이 없는 경우에 본 설명에 사용하는 방향을 표시하는 용어는 도면에 표시된 상태를 기준으로 한다. 또한 각 실시예를 통하여 동일한 도면부호는 동일한 부재를 가리킨다. 한편, 도면상에서 표시되는 각 구성은 설명의 편의를 위하여 그 두께나 치수가 과장될 수 있으며, 실제로 해당 치수나 구성간의 비율로 구성되어야 함을 의미하지는 않는다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Unless there is a specific definition or reference, terms indicating directions used in this description are based on the state indicated in the drawings. In addition, the same reference numerals refer to the same members throughout each embodiment. On the other hand, each component displayed in the drawings may be exaggerated in thickness or dimensions for convenience of description, and does not mean that it should be configured in a ratio between the corresponding dimensions or components.

도 3 및 도 4를 참조하여 일 실시예에 따른 전산장비용 항온항습 랙 및 이에 포함되는 냉각장치를 설명한다. 도 3은 본 발명의 일 실시예에 따른 전산장비용 항온항습 랙을 나타내는 개략도이고, 도 4는 일 실시예에 따른 전산장비용 항온항습 랙의 냉각장치를 나타내는 개략도이다.A constant temperature and humidity rack for computing equipment and a cooling device included therein according to an embodiment will be described with reference to FIGS. 3 and 4. Figure 3 is a schematic diagram showing a constant temperature and humidity rack for computing equipment according to an embodiment of the present invention, Figure 4 is a schematic diagram showing a cooling device of the constant temperature and humidity rack for computing equipment according to an embodiment.

도 3을 참조하여 설명하면, 본 실시예에 따른 냉각장치는 응축부(100)와 증발부(200)를 포함한다.Referring to FIG. 3, the cooling apparatus according to the present embodiment includes a condensing unit 100 and an evaporating unit 200.

랙 하우징(11)은 서버, 허브 등의 각종 전산장비를 수용하는 내측공간부(S1)가 형성된다. 랙 하우징(11)의 상부에는 응축부(100)가 구비되고, 하부에는 증발부(200)가 구비된다.The rack housing 11 is formed with an inner space (S1) for accommodating various computing equipment such as servers and hubs. The condensing part 100 is provided in the upper part of the rack housing 11, and the evaporating part 200 is provided in the lower part.

증발부(200)는 랙 하우징(11)의 내측공간부(S1)의 에어를 흡입하여 냉매와 열교환 후 되돌린다. 응축부(100)는 증발부(200)로부터 압축된 냉매를 받아 외기와 열교환한다.The evaporation part 200 sucks air from the inner space part S1 of the rack housing 11 and returns it after heat exchange with the refrigerant. The condensing unit 100 receives the compressed refrigerant from the evaporation unit 200 and exchanges heat with outside air.

이와 같이 증발부(200)와 응축부(100)가 분리되어 각각 랙 하우징(11)의 하부 및 상부에 독립적으로 구비됨으로써 온도가 상승된 외기의 외부 배출을 보다 용이하게 할 수 있으며, 응결수의 처리 및 활용을 용이하게 할 수 있다.In this way, the evaporation unit 200 and the condensation unit 100 are separated and provided independently at the lower and upper portions of the rack housing 11, respectively, thereby making it easier to discharge the outside air with an elevated temperature. It can be easily processed and utilized.

도 4를 참조하여 설명하면, 증발부(200)는 증발기팬(260), 증발코일(230) 및 압축기(210)를 포함한다.Referring to FIG. 4, the evaporation unit 200 includes an evaporator fan 260, an evaporation coil 230, and a compressor 210.

증발기팬(260)은 랙 하우징의 내측 공간부와 연통되는 실내공기유입구를 통하여 내측공간부의 에어를 유입시켜 열교환이 된 후 랙 하우징의 내측 공간부와 연통되는 실내공기배출구를 통하여 내측공간부로 에어를 다시 배출하는 기능을 한다.The evaporator fan 260 introduces air from the inner space through an indoor air inlet that communicates with the inner space of the rack housing, performs heat exchange, and then passes air into the inner space through the indoor air outlet that communicates with the inner space of the rack housing. It functions to discharge again.

한편, 증발기팬(260)은 브러시리스 DC 모터(BLDC 모터)를 구비하여 회전력을 제공할 수 있다. 증발기팬(260)은 속도조절이 가능한 모터를 이용하여 냉각 성능을 조절할 수 있도록 한다.Meanwhile, the evaporator fan 260 may be provided with a brushless DC motor (BLDC motor) to provide rotational force. The evaporator fan 260 allows the cooling performance to be adjusted by using a speed-controllable motor.

증발코일(230)은 압축기(210) 및 응축코일(110)과 함께 냉매순환 구조를 형성한다. 증발코일(230)은 실내공기유입구로부터 상기 실내공기배출구로 이어지는 내측공간부 에어의 경로, 즉 제1 공간부(SP1)로부터 제2 공간부(SP2)로 이어지는 경로 상에 구비되어 냉매와 내측공간부로부터 유입된 에어 간의 열교환을 수행한다. 이 때 냉매로는 에어를 이용할 수 있다.The evaporation coil 230 forms a refrigerant circulation structure together with the compressor 210 and the condensation coil 110. The evaporation coil 230 is provided on the path of the air of the inner space part leading from the indoor air inlet to the indoor air outlet, that is, the path leading from the first space part SP1 to the second space part SP2, and the refrigerant and the inner space Heat exchange between the air introduced from the unit is performed. In this case, air may be used as the refrigerant.

또한 증발코일(230)은 수평방향에 대하여 일정각도, 약 30도 내지 40도 기울어진 상태로 구비됨으로써 열교환 효율을 향상시키고, 응결수 또는 급수부(280)로부터 급수된 물이 집수가 용이하도록 할 수 있다. 급수부(280)는 외부로부터 물을 공급하여 별도의 노즐 등을 통하여 증발코일(230)에 물을 공급한다.In addition, the evaporation coil 230 is provided in a state that is inclined at a certain angle, about 30 degrees to 40 degrees with respect to the horizontal direction, thereby improving heat exchange efficiency, and allowing condensed water or water supplied from the water supply unit 280 to be easily collected. I can. The water supply unit 280 supplies water from the outside and supplies water to the evaporation coil 230 through a separate nozzle or the like.

댐퍼(290)는 제1 공간부(SP1)으로부터 증발코일(230)을 경유하지 않고 제2 공간부(SP2)로 직접 공기를 일정량 바이패스 시킨다. 댐퍼(290)는 개도율을 조절하여 바이패스되는 에어의 양을 조절한다.The damper 290 bypasses the air by a predetermined amount directly from the first space part SP1 to the second space part SP2 without passing through the evaporation coil 230. The damper 290 adjusts the amount of air bypassed by adjusting the opening rate.

드레인플레이트(295)는 증발코일(230)로부터 낙하하는 물을 집수한다.The drain plate 295 collects water falling from the evaporation coil 230.

압축기(210)는 증발코일(230)로부터 냉매를 전달받아 압축한 후 응축부(100)로 전달한다.The compressor 210 receives the refrigerant from the evaporation coil 230, compresses it, and delivers it to the condensing unit 100.

응축부(100)는 응축기팬(160) 및 응축코일(110)을 포함한다. 응축코일(110)은 압축기(210)로부터 전달되는 냉매와 외기를 열교환시킨다. 응축기팬(160)은 외기가 응축코일(110)을 경유하도록 유입시킨다.The condensing unit 100 includes a condenser fan 160 and a condensing coil 110. The condensation coil 110 exchanges heat with the refrigerant delivered from the compressor 210 and outside air. The condenser fan 160 allows outside air to flow through the condensing coil 110.

한편, 본 실시예에 따른 항온항습 랙은 별도의 제어부(미도시)를 포함한다.On the other hand, the constant temperature and humidity rack according to the present embodiment includes a separate control unit (not shown).

제어부는 본 실시예에 따른 냉각장치를 주로 4가지의 제어상태로 제어한다.The control unit mainly controls the cooling device according to the present embodiment in four control states.

첫째, 제1 제어상태에서 제어부는 증발기 팬(260)을 제어하여 증발코일(230)에서의 면풍속이 2.0 내지 2.2m/s이 되도록 한다. 제1 제어상태에서는 냉방운전 상태로 제어된다. 이 때 풍속 80 내지 90%(증발 코일 면풍속 2.0~2.2m/s)로 하고, 댐퍼의 개도율을 0%로 한다.First, in the first control state, the control unit controls the evaporator fan 260 so that the surface wind speed in the evaporation coil 230 is 2.0 to 2.2 m/s. In the first control state, it is controlled to the cooling operation state. At this time, the wind speed is 80 to 90% (the evaporation coil surface wind speed is 2.0 to 2.2 m/s), and the opening rate of the damper is set to 0%.

제2 제어상태에서는 증발기 팬(260)을 제어하여 증발코일(230)에서의 면풍속이 1.5 내지 2.0 m/s이 되도록 한다. 제2 제어상태에서는 냉방제습운전을 수행하며, 증발코일에서의 평균 풍속을 상대적으로 낮추어 제습량과 응결수의 양을 조절한다. 증발기팬에 의한 풍속 70 내지 80% (증발코일 면풍속 1.5~2.0m/s)이고, 댐퍼 개도율 0%로 한다. In the second control state, the evaporator fan 260 is controlled so that the surface wind speed in the evaporation coil 230 is 1.5 to 2.0 m/s. In the second control state, the cooling dehumidification operation is performed, and the average wind speed in the evaporation coil is relatively lowered to control the amount of dehumidification and the amount of condensed water. The wind speed by the evaporator fan is 70 to 80% (the surface wind speed of the evaporation coil is 1.5 to 2.0m/s), and the damper opening rate is set to 0%.

제3 제어상태에서는 증발기 팬(260)과 댐퍼(290)를 제어하여 증발코일에서의 면풍속이 1.0 내지 2.0 m/s이고, 댐퍼의 개도율이 50% 내지 100%가 되도록 한다. 제3 제어상태에서는 제습운전을 수행하며, 응결수의 재증발을 최소화하고 재증발에 의한 고습도 문제를 해결할 수 있다. 오버되는 냉각성능을 댐퍼(290)로 완충시킴으로써 온도가 필요이상으로 내려가는 것을 방지한다. 증발기팬 운전풍속 60~70% (증발코일 면풍속 1.0~1.5m/s)으로 한다.In the third control state, the evaporator fan 260 and the damper 290 are controlled so that the surface wind speed in the evaporating coil is 1.0 to 2.0 m/s, and the opening rate of the damper is 50% to 100%. In the third control state, dehumidification operation is performed, minimizing re-evaporation of condensed water, and high humidity problems caused by re-evaporation can be solved. By buffering the excess cooling performance with the damper 290, the temperature is prevented from lowering more than necessary. The evaporator fan's operating wind speed is 60~70% (the evaporation coil surface wind speed 1.0~1.5m/s).

제4 제어상태에서는 증발기 팬(260), 댐퍼(290) 및 급수부(280)를 제어하여 증발코일(230)에서의 면풍속이 1.5 내지 2.0 m/s이고, 댐퍼(290)의 개도율이 20% 내지 50%이고, 급수부로부터 물이 공급되도록 한다. 제4 제어상태에서는 가습운전을 수행하며, 유속을 감소시킨 상태에서 물을 공급함으로써 가습운전이 가능하도록 한다. 증발기팬 운전풍속 60~70% (증발코일 면풍속 1.5~2.0m/s)으로 한다.In the fourth control state, the evaporator fan 260, the damper 290, and the water supply unit 280 are controlled so that the surface wind speed in the evaporation coil 230 is 1.5 to 2.0 m/s, and the opening rate of the damper 290 is It is 20% to 50%, and water is supplied from the water supply. In the fourth control state, the humidification operation is performed, and the humidification operation is enabled by supplying water while the flow rate is reduced. The evaporator fan's operating wind speed is 60~70% (the evaporation coil surface wind speed 1.5~2.0m/s).

이상 본 발명의 바람직한 실시예에 대하여 설명하였으나, 본 발명의 기술적 사상이 상술한 바람직한 실시예에 한정되는 것은 아니며, 특허청구범위에 구체화된 본 발명의 기술적 사상을 벗어나지 않는 범주에서 다양하게 구현될 수 있다.Although the preferred embodiment of the present invention has been described above, the technical idea of the present invention is not limited to the above-described preferred embodiment, and may be variously implemented within the scope not departing from the technical idea of the present invention embodied in the claims. have.

10: 항온항습 랙
100: 응축부
110: 응축코일
160: 응축기팬
200: 증발부
210; 압축기
230: 증발코일
240: 팽창밸브
280: 급수부
295: 드레인플레이트10: constant temperature and humidity rack
100: condensation part
110: condensing coil
160: condenser fan
200: evaporation unit
210; compressor
230: evaporation coil
240: expansion valve
280: water supply
295: drain plate

Claims (11)

전산장비를 수용하는 내측공간부가 형성되는 랙 하우징;
상기 랙 하우징의 내측공간부의 에어를 흡입하여 냉매와 열교환 후 되돌리는 증발부; 및
상기 증발부로부터 압축된 냉매를 받아 외기와 열교환하는 응축부;를 포함하고,
상기 증발부는,
실내공기유입구를 통하여 상기 내측공간부의 에어를 유입시켜 실내공기배출구를 통하여 상기 내측공간부로 에어를 다시 배출하는 증발기팬;
상기 실내공기유입구로부터 상기 실내공기배출구로 이어지는 내측공간부 에어의 경로 상에 구비되어 상기 냉매와 상기 내측공간부 에어 간의 열교환을 수행하는 증발코일;
상기 실내공기유입구로부터 상기 증발코일을 경유하지 않고 상기 증발기팬 측으로 직접 공기를 일정량 바이패스 시키는 댐퍼; 및
상기 증발코일로부터 냉매를 전달받아 압축한 후 상기 응축부로 전달하는 압축기;를 포함하고,
상기 응축부는,
상기 압축기로부터 전달되는 냉매와 외기를 열교환시키는 응축코일; 및
외기가 상기 응축코일을 경유하도록 유입시키는 응축기팬;을 포함하고,
상기 응축부는 상기 랙 하우징의 상단부에 구비되고, 상기 증발부는 상기 랙 하우징의 하단부에 구비되고,
상기 증발기 팬을 제어하여 상기 증발코일에서의 면풍속이 2.0 내지 2.2m/s인 제1 제어상태와 상기 증발코일에서의 면풍속이 1.5 내지 2.0 m/s인 제2 제어상태로 제어하는 제어부를 포함하며,
상기 증발기 팬과 상기 댐퍼를 제어하여 제3 제어상태로 제어하는 제어부를 포함하되, 상기 제3 제어상태는 상기 증발코일에서의 면풍속이 1.0 내지 1.5 m/s이고, 상기 댐퍼의 개도율을 50% 내지 100%이고,
상기 증발코일에 물을 분사하는 급수부;를 더 포함하며,
상기 증발코일은 수평방향에 대하여 일정각도 기울어진 상태로 구비되고,
상기 증발기 팬, 상기 댐퍼 및 상기 급수부를 제어하여 제4 제어상태로 제어하는 제어부를 포함하되,
상기 제4 제어상태는 상기 증발코일에서의 면풍속이 1.5 내지 2.0 m/s이고, 상기 댐퍼의 개도율이 20% 내지 50%이고, 상기 급수부로부터 물이 공급되도록 제어하며,
상기 증발코일로부터 낙하하는 물을 집수하는 드레인플레이트;를 포함하고,
상기 증발기팬은 브러시리스 DC 모터를 구비하며,
개도율을 제어하여 상기 증발코일로 유입되는 냉매량을 조절하는 팽창밸브를 포함하고,
상기 냉매는 에어이며,
상기 드레인플레이트는 경사진 상기 증발코일의 하부측에 연결되어 상기 증발코일에 분사되었다가 낙하하는 물을 집수하는 것을 특징으로 하는 전산장비용 항온항습 랙.A rack housing in which an inner space for accommodating computing equipment is formed;
An evaporation unit that sucks air in the inner space of the rack housing and returns it after heat exchange with the refrigerant; And
Containing; a condensing unit for receiving the compressed refrigerant from the evaporation unit to heat exchange with outside air,
The evaporation unit,
An evaporator fan for introducing air in the inner space portion through an indoor air inlet and discharging air back to the inner space portion through an indoor air outlet;
An evaporation coil provided on a path of the air in the inner space portion leading from the indoor air inlet to the indoor air outlet to perform heat exchange between the refrigerant and the air in the inner space;
A damper for bypassing a certain amount of air directly from the indoor air inlet to the evaporator fan without passing through the evaporation coil; And
Comprising; a compressor that receives the refrigerant from the evaporation coil, compresses it, and delivers it to the condensing unit,
The condensation part,
A condensation coil for exchanging heat with the refrigerant delivered from the compressor and outside air; And
Including; a condenser fan for introducing outside air to pass through the condensing coil,
The condensing part is provided at the upper end of the rack housing, the evaporation part is provided at the lower end of the rack housing,
A control unit for controlling the evaporator fan to control the first control state in which the surface wind speed in the evaporation coil is 2.0 to 2.2 m/s and the second control state in which the surface wind speed in the evaporation coil is 1.5 to 2.0 m/s. Includes,
And a control unit controlling the evaporator fan and the damper to a third control state, wherein in the third control state, the surface wind speed in the evaporation coil is 1.0 to 1.5 m/s, and the opening rate of the damper is 50 % To 100%,
Further comprising a; a water supply unit for spraying water to the evaporation coil,
The evaporation coil is provided in a state inclined at a certain angle with respect to the horizontal direction,
And a control unit for controlling the evaporator fan, the damper, and the water supply unit to a fourth control state,
In the fourth control state, the surface wind speed in the evaporation coil is 1.5 to 2.0 m/s, the opening degree of the damper is 20% to 50%, and water is supplied from the water supply part.
Includes; a drain plate for collecting water falling from the evaporation coil,
The evaporator fan has a brushless DC motor,
It includes an expansion valve for controlling the amount of refrigerant introduced into the evaporation coil by controlling an opening rate,
The refrigerant is air,
The drain plate is connected to a lower side of the inclined evaporation coil to collect water that is sprayed onto the evaporation coil and then falls . 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete
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Publication number Priority date Publication date Assignee Title
CN116528539A (en) * 2023-07-03 2023-08-01 棚丰信息科技(陕西)有限公司 Digital control cabinet for sunlight greenhouse

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KR101075863B1 (en) * 2011-06-03 2011-10-25 주식회사 에이알 Control method for energy saving sensible heat cooling and dehumidifying cooling in thermo-hygrostat
JP2014157494A (en) * 2013-02-15 2014-08-28 Panasonic Corp Server cooling system
KR20180126823A (en) * 2017-05-18 2018-11-28 (주) 지트시스템 Constant temperature and constant humidity apparatus of rack structure

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Publication number Priority date Publication date Assignee Title
KR200377373Y1 (en) * 2004-12-16 2005-03-14 김종남 Structure of humidifier for thermohygrostat
KR101075863B1 (en) * 2011-06-03 2011-10-25 주식회사 에이알 Control method for energy saving sensible heat cooling and dehumidifying cooling in thermo-hygrostat
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116528539A (en) * 2023-07-03 2023-08-01 棚丰信息科技(陕西)有限公司 Digital control cabinet for sunlight greenhouse
CN116528539B (en) * 2023-07-03 2023-11-07 棚丰信息科技(陕西)有限公司 Digital control cabinet for sunlight greenhouse

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