CN205079411U - Increase device of return air pressure - Google Patents

Increase device of return air pressure Download PDF

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Publication number
CN205079411U
CN205079411U CN201520805974.7U CN201520805974U CN205079411U CN 205079411 U CN205079411 U CN 205079411U CN 201520805974 U CN201520805974 U CN 201520805974U CN 205079411 U CN205079411 U CN 205079411U
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China
Prior art keywords
return air
air
airduct
fan
pressure
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CN201520805974.7U
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Chinese (zh)
Inventor
杨静
孙明迪
吴振翔
周昊
袁祎
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Nanjing Canatal Data Centre Environmental Tech Co Ltd
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Nanjing Canatal Air Condition Elect & Mech Co Ltd
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Abstract

The utility model discloses an increase device of return air pressure, including setting up the fan box in each return air inlet department, be located wind pressure transducer, temperature sensor and the air velocity transducer in each return air inlet region, fan box controller and centralized control terminal, wind pressure transducer, temperature sensor and air velocity transducer are connected with the fan box controller of current return air inlet respectively, the fan box controller and the centralized control terminal connection of each return air inlet. Compared with the prior art, the utility model discloses do not change the installation form of original return air tuber pipe, through increasing fan box at the return air inlet, use the fan pressure boost in order to improve and to keep balance the pressure and the return air amount of wind in the return air tuber pipe, the loss of pressure that reasons such as return air tuber pipe sectional area undersize caused effectively offsets, it is more balanced to make the pressure in each pipeline, the return air volume also tends to balance, thereby make the amount of wind in the whole pipeline satisfy the actual demand, avoid arousing because of the deficiency in draught that air conditioning unit's refrigerating output is not enough, lead to computer lab local overheat.

Description

A kind of device increasing return air pressure
Technical field
The utility model relates to a kind of return air supercharging device of air-conditioner set, belongs to air-conditioning equipment manufacturing technology field.
Background technology
At present, most of data center module space is comparatively large, and number of devices is more, arranges return air inlet at data center module, is connected with air conditioner by return air airduct, forms complete return air channel.The duct length be connected with air conditioner of return air inlet, form are different, and the on-way resistance of airduct also can difference to some extent.The return air inlet that distance air conditioner is nearer, return air is effective, server temperature near it is all right, the return air inlet that distance air conditioner is farther, due to the length of airduct, and the blast connection for connecting, add the on-way resistance of airduct, cause the decay of return air amount, the heat of part server cannot normally be discharged, and superheating phenomenon appears in equipment.
Utility model content
Goal of the invention: for the deficiencies in the prior art, the utility model proposes a kind of device increasing return air pressure, and effectively solve because return air inlet is very few, the pressure loss in piping that the reasons such as return air airduct sectional area is too small cause, avoids because the pressure loss causes air quantity to be decayed.
Technical scheme: for achieving the above object, the utility model adopts following technical scheme:
Increase a device for return air pressure, comprise the air box being arranged on each return air inlet place, be positioned at the wind pressure sensor in each return air inlet region, temperature sensor and air velocity transducer, air box controller and centralized Control terminal; Described wind pressure sensor, temperature sensor and air velocity transducer are connected with the air box controller of current return air inlet respectively, and the air box controller of each return air inlet is connected with centralized Control terminal.
As preferably, the blower fan in described air box is the EC blower fan of adjustable speed.
As preferably, be flexible coupling be connected between described air box with return air airduct by airduct, airduct is flexible coupling and is provided with air-valve with airduct junction.
As preferably, described air box is placed on the below of airduct by wall, supports airduct and is also fixed on body of wall.
Further, described air box controller comprises collecting unit, for gathering the measurement data of wind pressure sensor, temperature sensor and air velocity transducer; Air-blower control unit, for regulating rotation speed of fan according to return air temperature; And communication unit, for transmitting measurement data to centralized Control terminal, and the signal of the raising rotation speed of fan of reception centralized Control terminal.
Beneficial effect: compared with prior art, the utility model is under the prerequisite of installation form not changing original return air airduct, by increasing the theory of air box at return air inlet, use blower fan supercharging with the pressure improved and balance in return air airduct and return air air quantity, the pressure loss that the reasons such as effective counteracting return air airduct sectional area is too small cause, make the pressure in each pipeline more balanced, return air amount also tends to balance, thus make the air quantity practical requirement in whole pipeline, avoid, because deficiency in draught causes the refrigerating capacity of air-conditioner set inadequate, causing machine room hot-spot.In addition, the utility model also tool has the following advantages: first, and air box uses can the EC(EmbeddedController of speed governing, embedded controller) blower fan, effective control noise; The second, connect between air box and original return air airduct in succession with soft, avoid blower fan vibrations and drive airduct to produce new noise; 3rd, air box placed by wall and fixed, and is supported and fixed on body of wall to original airduct, increasing support strength; 4th, in each air box, blower fan independently can regulate 0 ~ 100% rotating speed by automatic/hand; Can according to static pressure in the show value of on-the-spot return air temperature and each air return pipeline recorded, manual adjustment is adjusted the rotating speed of each blower fan; 5th, also can give controller and automatically regulate each rotation speed of fan, whether controller can judge in this region according to the return air temperature of each point overheated, the need of increase rotation speed of fan.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model embodiment.
Fig. 2 is the side-looking structural representation of the utility model embodiment.
Fig. 3 is the structural representation of the utility model embodiment control system.
In figure: 1. return air airduct, 2. air-valve, 3. airduct is flexible coupling, 4. fan box, 5. blower fan; 11. wind pressure sensors, 12. temperature sensors, 13. air velocity transducers, 14. centralized Control terminals, 15. air box controllers.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As Figure 1-3, a kind of device increasing return air pressure disclosed in the utility model embodiment, be arranged on each return air inlet place of air conditioner return air airduct 1, mainly comprise fan box 4, blower fan 5 in fan box, the airduct of connecting fan case and return air airduct is soft connects 3, and the soft air-valve 2 connect between 3 and return air airduct 1 of airduct.The wind pressure sensor 11 for detecting static pressure, return air temperature and wind speed, temperature sensor 12 and air velocity transducer 13 is respectively equipped with in each return air inlet region, each sensor is connected with the air box controller 15 of current region, and each air box controller 15 is connected with centralized Control terminal 14.Blower fan can adopt the EC blower fan of 0 ~ 100% rotational speed regulation, booster fan case sucks more hot-air (return air direction) in machine room by EC blower fan 5, and be flexible coupling through airduct and 3 deliver in return air airduct 1 pipeline, by the rotating speed of PID auto-adjustment control EC blower fan 5.Start when the blower fan 5 of air-valve 2 in fan box 4 is opened, ensure that air-flow enters in return air airduct 1 smoothly; Air-valve 2 closes when blower fan 5 cuts out, and can prevent the air-flow of other blower fans in return air airduct main line from flowing backwards into this airduct.
Air box controller 15 comprises collecting unit, for gathering the measurement data of each sensor, and air-blower control unit, for regulating rotation speed of fan, and communication unit, for transmitting measurement data to centralized Control terminal, and the signal of the raising rotation speed of fan of reception centralized Control terminal.Air box controller 15 is placed in the measurement numerical value of temperature sensor 12, wind pressure sensor 11 and air velocity transducer 13 in return air duct by collecting unit collection, air-blower control unit judges the situation of this return air inlet region return air temperature according to measured temperature, if overheated, regulate increase rotation speed of fan according to PID.Communication unit sends the numerical value of the wind pressure sensor 11 in the return air duct in this region collected and air velocity transducer 13 to centralized Control terminal 14 simultaneously, centralized Control terminal 14 is according to the static pressure measurement in regional pipeline and measuring wind speed value, entirety judges that this rotation speed of fan affects the return air amount of other air return pipelines, thus judges the current rotation speed of fan upper limit; As wherein a unit needs to increase rotation speed of fan because return air temperature exceeds standard, but reached the current return air static pressure upper limit, entirety is improved other without the need to increasing air quantity rotation speed of fan by centralized Control terminal 14, thus the rotating speed upper limit of this Fans can be allowed to continue to improve.When all blower fans all bring up to 100%, when still having regional temperature to exceed setting limit value, controller has overload alarm; Centralized Control terminal 14 adopts fuzzy control regulating system, under normal condition regulates, comprehensively can allocate the blower fan of regional to the combinations of states of saving power consumption most.
In order to balance the return air pressure of all return air inlets corresponding to same return air airduct main line, be necessary return air inlet corresponding for this return air airduct main line that booster fan case is all installed.If only install booster fan case at part return air inlet, when after fan starting, the pressure not installing the return air plenum chamber of air box can raise, pressure reduction between this return air inlet and plenum chamber reduces, air quantity also just reduces, if when the pressure of this return air plenum chamber is elevated to atmospheric pressure, the return air inlet of this side will not have return air.And each return air inlet installs increase air box, the air quantity of air conditioner also can be heightened, and the performance of exchanging high air conditioner is also helpful.
The present embodiment is for the air box of practicality list blower fan, but whole apparatus structure form also comprises the air box form of two fans, multi fan, is applicable to the data center module of all band air return pipelines.

Claims (6)

1. increase a device for return air pressure, it is characterized in that, comprise the air box being arranged on each return air inlet place, be positioned at the wind pressure sensor in each return air inlet region, temperature sensor and air velocity transducer, air box controller and centralized Control terminal; Described wind pressure sensor, temperature sensor and air velocity transducer are connected with the air box controller of current return air inlet respectively, and the air box controller of each return air inlet is connected with centralized Control terminal.
2. the device of increase return air pressure according to claim 1, is characterized in that, the blower fan in described air box is the EC blower fan of adjustable speed.
3. the device of increase return air pressure according to claim 1, is characterized in that, being flexible coupling by airduct between described air box with return air airduct is connected, and airduct is flexible coupling and is provided with air-valve with airduct junction.
4. the device of increase return air pressure according to claim 1, it is characterized in that, described air box is placed on the below of airduct by wall, supports airduct and is fixed on body of wall.
5. the device of increase return air pressure according to claim 1, is characterized in that, described air box controller comprises collecting unit, for gathering the measurement data of wind pressure sensor, temperature sensor and air velocity transducer; Air-blower control unit, for regulating rotation speed of fan according to return air temperature; And communication unit, for transmitting measurement data to centralized Control terminal, and the signal of the raising rotation speed of fan of reception centralized Control terminal.
6. the device of increase return air pressure according to claim 1, is characterized in that, described air box adopts single blower fan, two fans or multi fan mode.
CN201520805974.7U 2015-10-16 2015-10-16 Increase device of return air pressure Active CN205079411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520805974.7U CN205079411U (en) 2015-10-16 2015-10-16 Increase device of return air pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520805974.7U CN205079411U (en) 2015-10-16 2015-10-16 Increase device of return air pressure

Publications (1)

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CN205079411U true CN205079411U (en) 2016-03-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105222299A (en) * 2015-10-16 2016-01-06 南京佳力图空调机电有限公司 A kind of device increasing return air pressure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105222299A (en) * 2015-10-16 2016-01-06 南京佳力图空调机电有限公司 A kind of device increasing return air pressure
CN105222299B (en) * 2015-10-16 2018-03-06 南京佳力图机房环境技术股份有限公司 A kind of device for increasing return air pressure

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 211111 Jiangning, Jiangsu, Jiangsu Province, the source of the road No. 88

Patentee after: NANJING CANATAL DATA-CENTRE ENVIRONMENTAL TECH CO., LTD.

Address before: 211111 Jiangning, Jiangsu, Jiangsu Province, the source of the road No. 88

Patentee before: Nanjing Canatal Air Condition Elect. & Mech. Co., Ltd.