CN201748555U - Air conditioner for machine room - Google Patents
Air conditioner for machine room Download PDFInfo
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- CN201748555U CN201748555U CN2010202088207U CN201020208820U CN201748555U CN 201748555 U CN201748555 U CN 201748555U CN 2010202088207 U CN2010202088207 U CN 2010202088207U CN 201020208820 U CN201020208820 U CN 201020208820U CN 201748555 U CN201748555 U CN 201748555U
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- machine room
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Abstract
The utility model discloses an air conditioner for a machine room, comprising a compressor, a controller, an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit are respectively arranged at the inner side and the outer side of a wall body of the machine room; the wall body is provided with an air exhaust window and an air inlet window; the outdoor unit comprises a condenser and an outdoor fan; the indoor unit comprises a box body which is provided with an air inlet and an air outlet; the box body is internally provided with an air inlet channel which is communicated with an air inlet and an air outlet; the air inlet channel is internally provided with an evaporator and an automatic control door arranged corresponding to the air inlet, and the air exhaust window of the air inlet channel is provided with an air exhaust channel which is internally provided with an air exhaust fan and an air exhaust automatic door; the air inlet window is provided with a cold-air-absorbing channel which is communicated with the air inlet channel; the cold-air-absorbing channel is internally provided with an air inlet automatic door; the indoor unit also comprises an indoor fan which is commonly used for circulating air indoor and introducing outdoor air; and the indoor fan is arranged in the air inlet channel. The air conditioner can introduce the outdoor air to reduce the temperature and can avoid the damage or fault on machine room devices which can be possibly caused by ultralow temperature outdoor cold air directly blowing into a room.
Description
Technical field
The utility model relates to a kind of air-conditioner that is used for machine room.
Background technology
General machine room is regardless of the region with air-conditioning and all will works the whole year, does cooling for machine room and handles, fully the air conditioner in machine room requirement of incompatibility energy-saving and emission-reduction of lowering the temperature by the method for compressor cooling.The existing function that renews wind of some air conditioner in machine room is directly introduced the cold wind cooling by perception indoor and outdoor humiture environment and is discharged hot blast simultaneously at present.There generally have two passages to lead to be outdoor, and one sucks cold wind, discharges hot blast for one.
When renewing wind, common way be the cold wind introduced send into from indoor air outlet before indoor isolated fully with indoor hot-air, do not mix, but this simply dealt method has two drawbacks, the one, because the equipment in the machine room generates heat throughout the year, air does not circulate again, and ultralow temperature cold wind directly is blown into the indoor condensed water that very easily produces, condensed water can cause power supply short circuit, causes disaster or equipment fault.The 2nd, the indoor air convection degree causes cooling-down effect bad inadequately.And when opening hot-air channel ultralow temperature cold wind mixed with hot-air, if air exhaust passage has passage to communicate with the hot blast of introducing, can cause directly cold wind outside the exhaust outlet suction chamber of indoor circulation blower fan, outdoor cold wind and indoor hot blast normally exchange can cause the indoor temperature distribution inequality, cause hot-spot.
The utility model content
The purpose of this utility model aims to provide a kind of outdoor air of can introducing and lowers the temperature, after when outdoor cold wind temperature is very low, providing simultaneously a cold and hot wind to mix, again the cold wind of preference temperature is sent into the air-conditioner that is used for machine room of room temperature lowering, to overcome weak point of the prior art.
A kind of air-conditioner that is used for machine room by the design of this purpose comprises compressor, controller, is separately positioned on the indoor set and the off-premises station in the outside in the machine room body of wall, and body of wall is provided with ventilation window and air-inlet window; Off-premises station comprises condenser and outdoor fan; Indoor set comprises the casing that is provided with air inlet and air outlet, and box house is provided with the air intake passage that is communicated with inlet and outlet; Be provided with evaporimeter in the air intake passage, and corresponding air inlet is provided with automatic control gate, its architectural feature is that ventilation window is provided with air exhaust passage, is provided with air draft blower fan and air draft automatically-controlled door in the air exhaust passage; Air-inlet window is provided with the suction cold air duct that is communicated with air intake passage, inhales in the cold air duct to be provided with the air intake automatically-controlled door; Indoor set comprises also and is used for indoor circulation wind and introduces the common indoor fan that uses of outdoor air that indoor fan is arranged in the air intake passage.
Described air exhaust passage one end is connected with ventilation window, and the other end is communicated with the interior space, and the corresponding air draft blower fan in air exhaust passage surface is provided with the side perforate.When air draft automatically-controlled door and automatic control gate were all opened, indoor fan can not suck cold wind from the air draft automatically-controlled door.
Described automatic control gate, air draft automatically-controlled door and air intake automatically-controlled door are electrically connected with controller by driving mechanism respectively.Wherein, each aperture all can be passed through driving mechanisms control.
Described compressor is arranged in the indoor set casing, is provided with indoor temperature transmitter near the air inlet, off-premises station surface or near be provided with the outdoor temperature humidity sensor.
Be provided with screen pack in described air inlet place and/or the suction cold air duct.
A kind of control method that is used for the air-conditioner of machine room, it is characterized in that setting outdoor set temperature value is that T4, outside humidity are set minimum of a value α 1, outside humidity is set maximum α 2; Controller reads outdoor temperature value and the outside humidity value that outdoor set temperature value T4, outside humidity setting minimum of a value α 1, humidity setting maximum α 2 and outdoor temperature humidity sensor detect; When outdoor temperature value＜T4, α 1＜outside humidity value＜α 2, controller cuts out cooler compressor and outdoor fan, opens air intake automatically-controlled door, air draft automatically-controlled door, indoor fan and air draft blower fan; As outside humidity value≤α 1, outside humidity value 〉=α 2, perhaps during outdoor temperature 〉=T4, close air draft blower fan, air draft automatically-controlled door and air intake automatically-controlled door, open compressor, outdoor fan and indoor fan.
Setting the condensation temperature value is that T1, the condensation protection temperature higher slightly than T1 are T1+ β; It is the indoor temperature value that T1 and indoor temperature transmitter detect that controller reads the condensation temperature value; When α 1＜outside humidity value＜α 2, outdoor temperature value＜T4, indoor temperature value≤T1+ β, air intake automatically-controlled door aperture reduces, and the automatic control gate aperture strengthens; Still can not make indoor intensification when the aperture of air intake automatically-controlled door reduces to the limit, then close air intake automatically-controlled door, air draft automatically-controlled door and automatic control gate, opening chamber's inner blower makes the room air self-loopa, promotes indoor temperature.1℃≤β≤2℃。
Set indoor set temperature value Ts, indoor maximum permissible temperature Ts+ γ; Controller reads the indoor temperature value of indoor set temperature value Ts and indoor temperature transmitter detection; When T1+ β＜indoor temperature value＜Ts+ γ, the aperture of air intake automatically-controlled door and automatic control gate remains unchanged and keeps indoor temperature; When indoor temperature value 〉=Ts+ γ, the aperture of air intake automatically-controlled door strengthens, and the aperture of automatic control gate reduces, and makes room temperature lowering; Still can not make room temperature lowering when the aperture of air intake automatically-controlled door reaches capacity, then close air intake automatically-controlled door, air draft automatically-controlled door and air draft blower fan, open automatic control gate, start compressor cooling.2℃≤γ≤3℃。
Every T minute the indoor and outdoor humiture is done one-time detection, the aperture of air intake automatically-controlled door and automatic control gate will adjust according to the situation of change of indoor and outdoor temperature.3min≤T≤5min。
The utility model can be introduced outdoor air and lower the temperature, can avoid outdoor ultralow temperature cold wind directly to be blown into the indoor damage or the fault that may cause to calculator room equipment, can prevent to suck cold wind from exhaust outlet, ensure that indoor-outdoor air normally exchanges, can use automatic control mode to renew between the wind refrigeration dual mode and switch in the compression mechanism cold-peace.Specifically be in conjunction with automatic control system, combination can guarantee the unlikely generation condensation of calculator room equipment and cause short circuit or fault by the different opening of three doors.Structurally isolated in addition cold and hot air channel guarantees that renewing the wind function can normally carry out in all cases.This is simple and reasonable, cost is low, safe and effective, control method reliability height.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is the utility model sectional structure schematic diagram.
Fig. 3 is the working state schematic representation of the normal exchange of indoor-outdoor air.
Fig. 4 for the outdoor air humidity value with renew the wind function logic and concern schematic diagram.
Fig. 5-Fig. 8 is a plurality of working state structure schematic diagrames of the utility model.
Fig. 9 is the utility model control flow chart.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1 and Fig. 2, a kind of air-conditioner that is used for machine room comprises compressor 20, controller, is separately positioned on the indoor set 6 and the off-premises station 4 in the outside in the machine room body of wall 2, and body of wall is provided with ventilation window 3 and air-inlet window 1; Off-premises station comprises condenser and outdoor fan; Indoor set comprises the casing that is provided with air inlet 13 and air outlet 21, and box house is provided with the air intake passage 16 that is communicated with inlet and outlet; Be provided with evaporimeter 18 in the air intake passage, and corresponding indoor air inlet is provided with automatic control gate 15.Ventilation window 3 is provided with air exhaust passage 11, is provided with air draft blower fan 12 and air draft automatically-controlled door 10 in the air exhaust passage; Air-inlet window 1 is provided with the suction cold air duct 7 that is communicated with air intake passage 16, inhales in the cold air duct to be provided with air intake automatically-controlled door 8; Indoor set comprises also and is used for indoor circulation wind and introduces the common indoor fan 19 that uses of outdoor air that indoor fan is arranged in the air intake passage.
Referring to Fig. 3, be the working state schematic representation of the normal exchange of indoor-outdoor air, this state compressor cuts out, and indoor fan 19 is opened, and automatic control gate 15, air draft automatically-controlled door 10 and air intake automatically-controlled door 8 are all opened.
Referring to Fig. 4, for renewing rheumatism degree control logic graph of a relation, among the figure, outside humidity is set minimum of a value α 1, outside humidity is set maximum α 2.When outside humidity value≤α 1, renew the wind function and close (promptly closing air draft blower fan, air draft automatically-controlled door and air intake automatically-controlled door), open compressor, see Fig. 5; When α 1＜outside humidity value＜α 2, close compressor renews the wind function and opens (promptly opening air intake automatically-controlled door, air draft automatically-controlled door, indoor fan and air draft blower fan), sees Fig. 7; When outside humidity value 〉=α 2, renew the wind function equally and close, open compressor, see Fig. 5.
The utility model considers that the indoor equipment of machine room has requirement to humidity, be easy to generate condensed water when humidity too high (such as 90%), condensed water can cause the short circuit damage equipment or cause fault, be easy to generate static when humidity too low (such as below 10%), calculator room equipment is also dangerous.So the outside humidity value should be set when renewing wind in a certain suitable scope.Between 20% to 80%, compare rationally.
Referring to Fig. 5, this moment, compressor was opened, indoor fan work, the air intake automatically-controlled door that leads to the air draft automatically-controlled door in the outdoor air exhaust passage and inhale in the cold air duct is closed, automatic control gate in the air intake passage of indoor set inside is opened, and indoor hot-air is blown out from air outlet by indoor fan after air inlet, automatic control gate enter evaporimeter (heat exchanger) cooling.
Referring to Fig. 6, this moment, outside air temperature was near the unlatching temperature that renews wind, the poor effect of refrigeration in the cold wind inlet chamber, for guaranteeing to suck the outdoor cold wind refrigeration of maximum, automatic control gate is closed, the air intake automatically-controlled door reaches maximum, and the air draft automatically-controlled door is opened, and opens the air draft blower fan simultaneously and discharges indoor hot blast.
Referring to Fig. 7, at this moment second screen pack 9 has the windage effect, and the air quantity of air intake automatically-controlled door direction and automatic control gate direction can not compare on an equal basis, and cold wind and hot blast mix, and mixed temperature is moderate, is blown into room temperature lowering again.
The aperture variation tendency of air intake automatically-controlled door, automatic control gate has three kinds of situations in the case:
(1) when outdoor temperature very low (such as below-10 ℃ or-10 ℃) indoor temperature also very low (＜T1+ β is promptly near condensation point temperature), renew in the wind cold wind inlet chamber seldom and just can reach refrigeration, at this moment to strengthen the aperture of automatic control gate, reduce the aperture of air intake automatically-controlled door, indoor temperature is raise, can make like this that room temperature is unlikely to be dropped to below the condensation point temperature.If air intake automatically-controlled door aperture is reduced to and is closed indoor temperature and still have downward trend, then close air intake automatically-controlled door, air draft automatically-controlled door, open automatic control gate and make circulation (see figure 8) in the room air, make room temperature put temperature away from condensation.
(2) as the approaching start-up temperature T4 (about such as 15 ℃) that renews wind of outdoor temperature, indoor temperature is higher, near Ts+ γ, at this moment reduces the aperture of automatic control gate, increases the aperture of air intake automatically-controlled door, and indoor temperature is reduced.Away from indoor maximum permissible temperature Ts+ γ.
If the aperture of automatic control gate is reduced to close, the air intake automatically-controlled door reaches maximum, and indoor temperature is still on the rise, then closes air intake automatically-controlled door, air draft automatically-controlled door and opens automatic control gate and start the compressor cooling (see figure 5).
(3) when T1+ β＜indoor temperature value＜Ts+ γ, the aperture of keeping air intake automatically-controlled door, automatic control gate is constant.
When mixing, hot and cold air must guarantee that the air-flow at ventilation window place is not connected with the air-flow that enters indoor set inside from indoor air inlet, otherwise, because the windage effect of second screen pack 9, indoor fan might suck cold wind from air exhaust passage, cause indoor hot blast to go out not go.
Referring to Fig. 8, make indoor temperature very low when renewing the wind refrigeration, be low to moderate that the aperture of air intake automatically-controlled door is minimum as can be known near condensation point temperature T 1 and by detecting data, the aperture of automatic control gate is maximum but still indoor temperature is heated up, close air intake automatically-controlled door, air draft automatically-controlled door this moment, close the air draft blower fan, open automatic control gate fully and make circulation in the room air, allow room air heat up away from condensation point temperature.
Referring to Fig. 9, its control method is: setting outdoor set temperature value is that T4, outside humidity are set minimum of a value α 1, outside humidity setting maximum α 2, the condensation temperature value is that T1, the condensation protection temperature higher slightly than T1 are T1+ β, indoor set temperature value Ts, indoor maximum permissible temperature Ts+ γ; The outdoor temperature value, outside humidity value and the indoor temperature value that detect.
Air-conditioner brings into operation; reading outdoor set temperature value T4 (starts when the outdoor temperature value reaches T4 or is lower than T4 and renews wind; T4 gets a certain value in the environment temperature below 24 ℃; preferred 22 ℃); indoor set temperature value Ts; indoor protection temperature value Ts+ γ (desirable 2 ℃ or 3 ℃ of γ); outside humidity is set minimum of a value α 1; outside humidity is set maximum α 2; condensation temperature value T1 (meet Re Shiyi and produce condensed water by clammy air; condensation temperature generally can be 15 ℃ or 15 ℃ of following values under the building environment); indoor condensation protection temperature value T1+ β (desirable 1 ℃ or 2 ℃ of β); temperature value outside the sensing chamber detects the outside humidity value.
As outside humidity value≤α 1, perhaps, during outside humidity value 〉=α 2, close air intake automatically-controlled door, air draft automatically-controlled door, open automatic control gate and open compressor cooling, should not send in the cold wind inlet chamber this moment, the air too dry is easy to generate static, and too wet forms condensation water easily.
During outdoor temperature value 〉=T4, close the air intake automatically-controlled door, the air draft automatically-controlled door is opened automatic control gate and is opened compressor cooling.
As α 1＜outside humidity value＜α 2, during outdoor temperature value＜T4, close compressor enters and renews the wind refrigerating state, according to occurrence air intake automatically-controlled door and the automatic control gate of T4 an initial opening value is arranged.Such as, when outdoor temperature for-25 ℃ or when lower the aperture of air intake automatically-controlled door be 1/6, and when outdoor temperature during-25 ℃ to-10 ℃ scopes, the aperture of air intake automatically-controlled door is 1/5 or the like, correspondingly, require to calculate according to the requirement of refrigeration work consumption and the duty of indoor fan, automatic control gate also has a corresponding suitable aperture.After this, every T minute (desirable 3 to 5 minutes of T) the indoor and outdoor humiture is done one-time detection, the aperture of air intake automatically-controlled door and automatic control gate will adjust according to the situation of change of indoor and outdoor temperature, and program can be done following processing:
When indoor temperature value≤T1+ β, indoor temperature is easy to generate condensed water when too low, closes air intake automatically-controlled door, air draft automatically-controlled door, opens automatic control gate and carries out the room air circulation and heat up, and does not make indoor temperature too low.
When indoor temperature value＞T1+ β, this moment in two kinds of situation:
(1) when indoor temperature value 〉=Ts+ γ, indoor temperature is very high, strengthens air intake automatically-controlled door aperture and inhales cold wind, reduces the automatic control gate aperture simultaneously, and indoor temperature is lowered the temperature as early as possible.
When the aperture that increases the air intake automatically-controlled door when the limit still can not make temperature lower, close air intake automatically-controlled door, air draft automatically-controlled door, open the automatic control gate rotary compressor and freeze.As long as the aperture of air intake automatically-controlled door does not reach the limit of, and indoor temperature still will strengthen the aperture of air intake automatically-controlled door in this interval, the aperture that reduces automatic control gate simultaneously makes room temperature lowering.
(2) when T1+ β＜indoor temperature value＜Ts+ γ, indoor temperature is not high low very suitable, and keep the aperture of air intake automatically-controlled door, automatic control gate constant this moment, as long as indoor temperature just keeps aperture constant in this scope.
Claims (5)
1. air-conditioner that is used for machine room comprises compressor (20), controller, is separately positioned on the indoor set (6) and the off-premises station (4) in the outside in the machine room body of wall (2), and body of wall is provided with ventilation window (3) and air-inlet window (1); Off-premises station comprises condenser and outdoor fan; Indoor set comprises the casing that is provided with air inlet (13) and air outlet (21), and box house is provided with the air intake passage (16) that is communicated with inlet and outlet; Be provided with evaporimeter (18) in the air intake passage, and corresponding air inlet is provided with automatic control gate (15), it is characterized in that ventilation window is provided with air exhaust passage (11), be provided with air draft blower fan (12) and air draft automatically-controlled door (10) in the air exhaust passage; Air-inlet window is provided with the suction cold air duct (7) that is communicated with air intake passage, inhales in the cold air duct to be provided with air intake automatically-controlled door (8); Indoor set comprises also and is used for indoor circulation wind and introduces the common indoor fan (19) that uses of outdoor air that indoor fan is arranged in the air intake passage.
2. according to the described air-conditioner that is used for machine room of claim 1, it is characterized in that described air exhaust passage (11) one ends are connected with ventilation window (3), the other end is communicated with the interior space.
3. according to the described air-conditioner that is used for machine room of claim 1, it is characterized in that described automatic control gate (15), air draft automatically-controlled door (10) and air intake automatically-controlled door (8) are electrically connected with controller by driving mechanism respectively.
4. according to the described air-conditioner that is used for machine room of claim 1, it is characterized in that described compressor (20) is arranged in indoor set (6) casing, be provided with indoor temperature transmitter (31) near the air inlet (13), off-premises station (4) surface or near be provided with outdoor temperature humidity sensor (30).
5. according to each described air-conditioner that is used for machine room of claim 1 to 4, it is characterized in that described air inlet (13) locates and/or inhale cold air duct (7) to be provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088207U CN201748555U (en) | 2010-05-21 | 2010-05-21 | Air conditioner for machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088207U CN201748555U (en) | 2010-05-21 | 2010-05-21 | Air conditioner for machine room |
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| CN201748555U true CN201748555U (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202088207U Expired - Fee Related CN201748555U (en) | 2010-05-21 | 2010-05-21 | Air conditioner for machine room |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846361A (en) * | 2010-05-21 | 2010-09-29 | 广东美的电器股份有限公司 | Air conditioner for machine room and control method thereof |
| CN102635897A (en) * | 2012-05-02 | 2012-08-15 | 四川同达博尔置业有限公司 | Air conditioner |
| CN105042696A (en) * | 2015-08-07 | 2015-11-11 | 珠海格力电器股份有限公司 | Air conditioner |
| CN106765561A (en) * | 2016-12-03 | 2017-05-31 | 肖雪怡 | A kind of external wall-mounted isolated precision air conditioner structure of hot and cold air |
| CN107420995A (en) * | 2017-08-23 | 2017-12-01 | 深圳沃海森科技有限公司 | Family expenses lift-on/lift-off type combined air conditioner |
| CN109302829A (en) * | 2018-09-25 | 2019-02-01 | 深圳市艾特网能技术有限公司 | Lower blast type air conditioner in machine room |
-
2010
- 2010-05-21 CN CN2010202088207U patent/CN201748555U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846361A (en) * | 2010-05-21 | 2010-09-29 | 广东美的电器股份有限公司 | Air conditioner for machine room and control method thereof |
| CN102635897A (en) * | 2012-05-02 | 2012-08-15 | 四川同达博尔置业有限公司 | Air conditioner |
| CN105042696A (en) * | 2015-08-07 | 2015-11-11 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105042696B (en) * | 2015-08-07 | 2018-11-09 | 珠海格力电器股份有限公司 | Air-conditioning |
| CN106765561A (en) * | 2016-12-03 | 2017-05-31 | 肖雪怡 | A kind of external wall-mounted isolated precision air conditioner structure of hot and cold air |
| CN107420995A (en) * | 2017-08-23 | 2017-12-01 | 深圳沃海森科技有限公司 | Family expenses lift-on/lift-off type combined air conditioner |
| CN109302829A (en) * | 2018-09-25 | 2019-02-01 | 深圳市艾特网能技术有限公司 | Lower blast type air conditioner in machine room |
| CN109302829B (en) * | 2018-09-25 | 2024-02-06 | 深圳市艾特网能技术有限公司 | Lower air supply type machine room air conditioner |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20140122 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 FOSHAN, GUANGDONG PROVINCE TO: 528311 FOSHAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140122 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20150521 |
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| EXPY | Termination of patent right or utility model |