CN105627636A - Air motion modified computer room air conditioner - Google Patents
Air motion modified computer room air conditioner Download PDFInfo
- Publication number
- CN105627636A CN105627636A CN201610013514.XA CN201610013514A CN105627636A CN 105627636 A CN105627636 A CN 105627636A CN 201610013514 A CN201610013514 A CN 201610013514A CN 105627636 A CN105627636 A CN 105627636A
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- Prior art keywords
- deflector
- air conditioner
- vaporizer
- air
- distance
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
Abstract
The invention discloses an air motion modified computer room air conditioner which comprises an air conditioner frame, an air inlet, a fan component, a deflector component and two sets of evaporators, wherein the air inlet is formed in one side of the air conditioner frame; the deflector component comprises a first deflector, a second deflector and a third deflector; the first deflector is a straight plate and is vertically arranged between the two sets of evaporators; the bottom of the first deflector is fixedly connected with those of the evaporators; two ends of the second deflector are bent in the same direction; the second deflector is arranged behind and below the evaporator which is far away from the air inlet; the third deflector is a straight plate and inclines above the second deflector; and the angle of inclination of the third deflector is an obtuse angle. According to the air motion modified computer room air conditioner, the actual service efficiency of the evaporators is improved, the refrigerant proportion and the energy efficiency ratio of the air conditioner are increased while the safe operation of a refrigeration system is guaranteed, and the purposes of saving energy and increasing efficiency are achieved.
Description
Technical field
The invention belongs to air conditioner in machine room structure-design technique field, particularly relate to improvement and the optimization of the flowing of air conditioner in machine room air.
Background technology
Developing rapidly through many decades, communication, IT, mobile Internet and big data service all obtain sharp increase. As cental system, the requirement of air conditioner in machine room is no longer most basic safe and reliable by IDC data center, efficient, energy-conservation is increasingly becoming emphasis.
The key means of machine room air-conditioning energy-saving is exactly increase evaporator area, minimizing air circulating resistance, reduction blower fan power consumption in limited space. Traditional air conditioner in machine room is after increasing evaporator area, comparatively disadvantageous air current composition problem occurs, air current composition confusion causes that the cold-producing medium evaporation in the flow process of vaporizer local is insufficient, the cold-producing medium not evaporated completely enters compressor, cause compressor liquid hammer, the normal table having had a strong impact on air conditioner runs, and performance and the efficiency of air conditioner are also greatly attenuated. In order to solve this problem, conventional means is the flow process significantly adjusting vaporizer, crosses the journey flow arrangement such as or not big-difference and causes to the oil return of refrigeration system again and have a strong impact on, it is possible to cause compressor to burn, machine delayed by air conditioner.
As shown in Figure 1, in the air conditioner in machine room of prior art, hot-air enters inside air conditioner from Qianmen drainage screen, after evaporator cools, by blower fan to the outside conveying of unit, illustrate in order to convenient, evaporator assemblies is split as front evaporator and finisher, and be made up of 6 vaporizers merging altogether, label is followed successively by I, II, III, IV, V, VI. Test and simulation by experiment, depict the air flow trace line schematic diagram shown in Fig. 1, figure is numbered the outlet mean temperature (when inlet condition is consistent) respectively 20.2 DEG C, 17.4 DEG C, 19.1 DEG C, 8.5 DEG C, 9.2 DEG C, 13 DEG C of the vaporizer of I-VI. This without in the design of deflector, the rate of air circulation of front side vaporizer is significantly greater than the circulation of rear side vaporizer, and the outlet temperature of front side vaporizer has the very big degree of superheat.
As it can be seen, portion of air again passes by rear side vaporizer V, VI place after the evaporator cools of front side, causing that rear side vaporizer V, VI place's air-flow is very chaotic, on the low side through the amount of the hot-air at V, VI place, namely the load of this section of vaporizer is on the low side.
As it can be seen, analyze from air flow path, rear side vaporizer IV place is positioned at the rear side of water spraying tray, and this place exists bigger air flow swirl, causes the energy loss that air circulates, this section of evaporator heat exchange effect extreme difference. From experimental data, the outlet temperature at evaporator section IV, V place is almost without overheated, and wherein evaporator section IV exports liquid refrigerant proportion greatly, and ideally, evaporator outlet should be gaseous refrigerant, and ideal temperature should be > 12 DEG C. This partial vaporiser does not play its due refrigerating capacity, and, evaporator outlet band liquid can cause compressor liquid hammer, and refrigeration system can not safe and stable operation. Therefore, traditional without in the design of deflector, the efficiency of actual of rear side vaporizer is extremely low, has had a strong impact on the safe and stable operation of air conditioner. Conventional solution is exactly use the blower fan of bigger evaporator area, more Wind Volume and power and bigger air conditioner size. The air conditioner efficiency using this design is on the low side, it is impossible to meet the requirement to energy-conserving product of the active data center.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of air flowing modified model air conditioner in machine room, start with from air current composition optimization, improve the heat transfer effect of the poor part of evaporator heat exchanger pointedly, promote the efficiency of actual of vaporizer, while ensureing refrigeration system safe operation, it is obviously improved cold-producing medium and the Energy Efficiency Ratio of air conditioner, it is achieved that the purpose of energy saving and efficiency increasing.
Technical scheme: for achieving the above object, the present invention is by the following technical solutions: a kind of air flowing modified model air conditioner in machine room, including air conditioner frame, air inlet, fan assembly, baffle assembly and two groups of vaporizers, described air inlet is located at the side of air conditioner frame, described often group vaporizer is arranged by many fin heat exchange pipe horizontal Tiles and is formed flat plate, what the vaporizer of two groups of flat plate tilted is arranged in air conditioner frame and forms " V " font, and described fan assembly is located at the top of vaporizer and makes air-flow flow through from bottom to up; Described baffle assembly includes the first deflector, the second deflector and the 3rd deflector, described first deflector is straight plate and vertical is located in the middle of two groups of vaporizers, and the bottom of bottom and vaporizer is fixing is connected, the two ends of described second deflector bend in the same direction, and it is located at the back lower place of the vaporizer away from air inlet, described 3rd deflector is straight plate the top being located at the second deflector tilted, and the inclination angle of described 3rd deflector is obtuse angle.
As preferably, the two ends of described second deflector are bent to form the first flanging and the second flanging and the second flow guide plate body in the same direction, and described first flanging is horizontally disposed with, and the inclination angle of described second flow guide plate body is acute angle.
As preferably, the height of described vaporizer is H1, the height of described first deflector is H2, distance bottom described base of evaporator distance air conditioner frame is H3, the distance of described first flanging and base of evaporator is H4, distance bottom the upper end of the second flow guide plate body and air conditioner frame is H5, distance bottom the lower end of the 3rd deflector and air conditioner frame is H6, first here distance with air inlet be L1, the distalmost end of base of evaporator and the distance of air inlet are L2, the lower end of the second flow guide plate body and the distance of air inlet are L3, the upper end of the second flow guide plate body and the distance of vaporizer are L4, the upper end of the 3rd deflector and the distance of vaporizer are L4, the distance of the 3rd deflector lower end and air conditioner frame is L4, the angle of two groups of vaporizers is A, the inclination angle of the second flanging is identical with the inclination angle of the 3rd deflector, it is B, the inclination angle of vaporizer is identical with the inclination angle of the second flow guide plate body, it is C, wherein, numerical relation between each parameter is as follows: H2=0.25��0.3*H1, H4<0.4H3, H6>H5>H3, L3>L2>L1, B=135 �㡫145 ��, C=90-0.5A.
As preferably, the bottom of described two groups of vaporizers is provided with water spraying tray, is additionally provided with supple buffer layer between described water spraying tray and base of evaporator.
As preferably, the side of described " V " font base of evaporator is provided with downward flanging, and described water spraying tray is formed around flanging upwards.
Beneficial effect: compared with prior art, the present invention designs middle deflector between front side vaporizer and rear side vaporizer, reduce the front side vaporizer cold wind out interference to rear side vaporizer, after rear side vaporizer is not affected by front side evaporator air flow, its hot blast substantially increases by measuring, and has been obviously improved heat transfer effect; Increase by 2 pieces of deflectors at rear side evaporator rear portion simultaneously, this deflector can effectively reduce air flow swirl, reduce air current flow energy loss, and it is optimized design by great many of experiments, the orientation obtaining best baffle assembly is arranged and size relationship, thus farthest reducing blower fan power consumption, pointedly the part that evaporator heat exchange effect is poor being guided ventilation, significantly improving the problem that its vaporizer is insufficient.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of air of the present invention flowing modified model air conditioner in machine room;
Fig. 3 is the size relationship schematic diagram of the baffle assembly of air of the present invention flowing modified model air conditioner in machine room;
Fig. 4 is the operation principle schematic diagram of air of the present invention flowing modified model air conditioner in machine room.
Wherein, air conditioner frame 1, air inlet 2, fan assembly 3, vaporizer 4, water spraying tray the 5, first deflector the 6, second deflector the 7, the 3rd deflector 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described. The following stated is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
As shown in Figure 2, the air flowing modified model air conditioner in machine room of the present invention, including air conditioner frame, air inlet, fan assembly, baffle assembly and two groups of vaporizers, described air inlet is located at the side of air conditioner frame, described two groups of vaporizers are divided into front evaporator and finisher, arrange by many fin heat exchange pipe horizontal Tiles and form flat plate, what the vaporizer of two groups of flat plate tilted is arranged in air conditioner frame and forms " V " font, and described fan assembly is located at the top of vaporizer and makes air-flow flow through from bottom to up; Described baffle assembly includes the first deflector, the second deflector and the 3rd deflector, described first deflector is straight plate and vertical is located in the middle of two groups of vaporizers, and the bottom of bottom and vaporizer is fixing is connected, the two ends of described second deflector bend in the same direction, and it being located at the back lower place of the vaporizer away from air inlet, described 3rd deflector is straight plate the top being located at the second deflector tilted.
As shown in Figure 3, the height of described vaporizer is H1, the height of described first deflector is H2, distance bottom described base of evaporator distance air conditioner frame is H3, the distance of described first flanging and base of evaporator is H4, distance bottom the upper end of the second flow guide plate body and air conditioner frame is H5, distance bottom the lower end of the 3rd deflector and air conditioner frame is H6, first here distance with air inlet be L1, the distalmost end of base of evaporator and the distance of air inlet are L2, the lower end of the second flow guide plate body and the distance of air inlet are L3, the upper end of the second flow guide plate body and the distance of vaporizer are L4, the upper end of the 3rd deflector and the distance of vaporizer are L4, the distance of the 3rd deflector lower end and air conditioner frame is L4, the angle of two groups of vaporizers is A, the inclination angle of the second flanging is identical with the inclination angle of the 3rd deflector, it is B, the inclination angle of vaporizer is identical with the inclination angle of the second flow guide plate body, it is C. wherein, baffle plate assembly orientation arrange and size relationship as follows: H2=0.25��0.3*H1, H4<0.4H3, H6>H5>H3, L3>L2>L1, B=135 �㡫145 ��, C=90-0.5A. preferred B is 140 ��.
Preferably, arrange in the bottom of two groups of vaporizers and be formed around upward folded water spraying tray, and set supple buffer layer at the upper surface of water spraying tray, during installation, make supple buffer layer be close to the bottom of vaporizer. When air-flow flows through, owing to can balance windage and the relation wafing between water most effectively, supple buffer layer is in close contact with weather board, and air-flow is difficult to traverse between the contact surface of supple buffer layer and base of evaporator, thus can avoid the air-flow water that wafts through causing.
As shown in Figure 4, simulate through experiment test and CFD, depict corresponding air flowing trace schematic diagram, figure is labeled as the outlet temperature meansigma methods (when inlet condition is consistent) respectively 13.2 DEG C, 14.1 DEG C, 17.5 DEG C, 12.4 DEG C, 13.6 DEG C, 16.1 DEG C of the vaporizer sign section of I-VI.
By designing the deflector of the present invention, the relatively conventional type scheme of rate of air circulation of front side vaporizer reduces, and rear side evaporator air circulation increases, air current composition substantially optimizes, and air flow swirl is obviously reduced, and whirlpool place is positioned at the heat exchange edge of vaporizer, the circulating resistance of air is little, and blower fan consumes low. Rear side V, VI section of airflow smooth of vaporizer, no longer by the impact of front side vaporizer cold wind, outlet temperature is obviously improved, and the practical efficiency of vaporizer is higher. Rear side the IVth section of some hot-air process of vaporizer, the cold-producing medium within vaporizer can evaporate completely. From evaporator outlet temperature, front side vaporizer and rear side vaporizer still very close to, evaporator outlet is band liquid phenomenon not, and compressor is absent from liquid hammer risk.
To sum up, in the deflector design of the present invention, the actual heat transfer effect of vaporizer and utilization rate are higher, and the cold-producing medium of air conditioner is obviously improved, and blower fan power consumption is relatively low, and complete machine efficiency is higher than industry meansigma methods.
Claims (5)
1. an air flowing modified model air conditioner in machine room, it is characterized in that: include air conditioner frame, air inlet, fan assembly, baffle assembly and two groups of vaporizers, described air inlet is located at the side of air conditioner frame, described often group vaporizer is arranged by many fin heat exchange pipe horizontal Tiles and is formed flat plate, what the vaporizer of two groups of flat plate tilted is arranged in air conditioner frame and forms " V " font, and described fan assembly is located at the top of vaporizer and makes air-flow flow through from bottom to up; Described baffle assembly includes the first deflector, the second deflector and the 3rd deflector, described first deflector is straight plate and vertical is located in the middle of two groups of vaporizers, and the bottom of bottom and vaporizer is fixing is connected, the two ends of described second deflector bend in the same direction, and it is located at the back lower place of the vaporizer away from air inlet, described 3rd deflector is straight plate the top being located at the second deflector tilted, and the inclination angle of described 3rd deflector is obtuse angle.
2. according to claim 1 air flowing modified model air conditioner in machine room, it is characterized in that: the two ends of described second deflector are bent to form the first flanging and the second flanging in the same direction, and second flow guide plate body, and described first flanging is horizontally disposed with, the inclination angle of described second flow guide plate body is acute angle.
3. according to claim 2 air flowing modified model air conditioner in machine room, it is characterized in that: the height of described vaporizer is H1, the height of described first deflector is H2, distance bottom described base of evaporator distance air conditioner frame is H3, the distance of described first flanging and base of evaporator is H4, distance bottom the upper end of the second flow guide plate body and air conditioner frame is H5, distance bottom the lower end of the 3rd deflector and air conditioner frame is H6, first here distance with air inlet be L1, the distalmost end of base of evaporator and the distance of air inlet are L2, the lower end of the second flow guide plate body and the distance of air inlet are L3, the upper end of the second flow guide plate body and the distance of vaporizer are L4, the upper end of the 3rd deflector and the distance of vaporizer are L4, the distance of the 3rd deflector lower end and air conditioner frame is L4, the angle of two groups of vaporizers is A, the inclination angle of the second flanging is identical with the inclination angle of the 3rd deflector, it is B, the inclination angle of vaporizer is identical with the inclination angle of the second flow guide plate body, it is C, wherein, numerical relation between each parameter is as follows: H2=0.25��0.3*H1, H4<0.4H3, H6>H5>H3, L3>L2>L1, B=135 �㡫145 ��, C=90-0.5A.
4. according to claim 2 air flowing modified model air conditioner in machine room, it is characterised in that: the bottom of described two groups of vaporizers is provided with water spraying tray, is additionally provided with supple buffer layer between described water spraying tray and base of evaporator.
5. according to claim 2 air flowing modified model air conditioner in machine room, it is characterised in that: the side of described " V " font base of evaporator is provided with downward flanging, and described water spraying tray is formed around flanging upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610013514.XA CN105627636B (en) | 2016-01-08 | 2016-01-08 | A kind of air flow modified air conditioner in machine room |
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| CN201610013514.XA CN105627636B (en) | 2016-01-08 | 2016-01-08 | A kind of air flow modified air conditioner in machine room |
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| CN105627636A true CN105627636A (en) | 2016-06-01 |
| CN105627636B CN105627636B (en) | 2018-05-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816753A (en) * | 2017-11-23 | 2018-03-20 | 珠海格力电器股份有限公司 | Air conditioner in machine room and its air channel structure |
| CN108489066A (en) * | 2018-05-23 | 2018-09-04 | 南京佳力图机房环境技术股份有限公司 | A kind of drip tray and air conditioner in machine room with air guide device |
| CN108534235A (en) * | 2018-05-23 | 2018-09-14 | 南京佳力图机房环境技术股份有限公司 | A kind of concealed air-flow modified air conditioner in machine room |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2306434Y (en) * | 1997-04-19 | 1999-02-03 | 海尔集团公司 | Cabinet-type air-conditioner with air guide |
| JP2004108671A (en) * | 2002-09-19 | 2004-04-08 | Denso Corp | Evaporator |
| CN205332478U (en) * | 2016-01-08 | 2016-06-22 | 南京佳力图机房环境技术股份有限公司 | Mobile improved generation computer lab air conditioner of air |
-
2016
- 2016-01-08 CN CN201610013514.XA patent/CN105627636B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2306434Y (en) * | 1997-04-19 | 1999-02-03 | 海尔集团公司 | Cabinet-type air-conditioner with air guide |
| JP2004108671A (en) * | 2002-09-19 | 2004-04-08 | Denso Corp | Evaporator |
| CN205332478U (en) * | 2016-01-08 | 2016-06-22 | 南京佳力图机房环境技术股份有限公司 | Mobile improved generation computer lab air conditioner of air |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816753A (en) * | 2017-11-23 | 2018-03-20 | 珠海格力电器股份有限公司 | Air conditioner in machine room and its air channel structure |
| CN107816753B (en) * | 2017-11-23 | 2023-10-27 | 珠海格力电器股份有限公司 | Machine room air conditioner and air duct structure thereof |
| CN108489066A (en) * | 2018-05-23 | 2018-09-04 | 南京佳力图机房环境技术股份有限公司 | A kind of drip tray and air conditioner in machine room with air guide device |
| CN108534235A (en) * | 2018-05-23 | 2018-09-14 | 南京佳力图机房环境技术股份有限公司 | A kind of concealed air-flow modified air conditioner in machine room |
| CN108534235B (en) * | 2018-05-23 | 2023-11-10 | 南京佳力图机房环境技术股份有限公司 | Concealed air flow improved machine room air conditioner |
| CN108489066B (en) * | 2018-05-23 | 2023-11-10 | 南京佳力图机房环境技术股份有限公司 | Water collector and computer lab air conditioner with air guiding device |
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| CN105627636B (en) | 2018-05-11 |
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