CN104578587A - Central air supply, heat dissipation and noise reduction system for motor group - Google Patents
Central air supply, heat dissipation and noise reduction system for motor group Download PDFInfo
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- CN104578587A CN104578587A CN201510015698.9A CN201510015698A CN104578587A CN 104578587 A CN104578587 A CN 104578587A CN 201510015698 A CN201510015698 A CN 201510015698A CN 104578587 A CN104578587 A CN 104578587A
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- noise reduction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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Abstract
The invention relates to a central air supply, heat dissipation and noise reduction system for a motor group. The central air supply, heat dissipation and noise reduction system for the motor group comprises motors, noise reduction rooms, draught fans and air pipes, wherein the noise reduction rooms are arranged in a factory or each workshop, the draught fans which are used for centrally supplying air are installed in the noise reduction rooms, the wall, corresponding to an air outlet of each draught fan, of each noise reduction room is provided with a ventilation opening, the ventilation opening is communicated with a main air pipe arranged on a support in a suspended mode, a plurality of branch air pipes are distributed and arranged on the main air pipe, and the air outlet of each branch air pipe is communicated with the air inlet formed in each fan housing of the motor respectively. The central air supply, heat dissipation and noise reduction system for the motor group has the advantages of being suitable for the central air supply, heat dissipation and noise reduction for the motor group, capable of effectively improving the cooling and heat dissipation effects of the motor, obvious in noise reduction effect, and capable of enabling the noise of the motor group in operation to be meet the requirement of being less than or equal to 85dB (A). The utilized air pipes are all flexible air pipes which are made of fiber fabric to supply the air, the cost is greatly lowered, the air supply effect can be fully met, and the energy-saving effect is remarkable.
Description
Technical field
The invention belongs to electromechanical equipment technical field of auxiliary facilities, is a kind of motor group centralized supply wind heat radiation noise reduction system.
Background technology
Motor can produce different noises in running, if the noise produced in running is in the scope that standard GB/T 10069=2000 " noise of motor method of measurement and noise level limit " specifies, belongs to normal, exceeds critical field and be noise, because being processed.Noise of motor is the important technology index weighing motor product quality, and therefore, the noise controlling motor has become the major issue of the main survival and development of domestic and international electric machine manufacturer.And usually have various sources simultaneously during motor rotation and deposit, if do not take necessary noise reduction measure, will cause serious harm to surrounding environment.In order to protect and environmental protect quality, must control noise of motor.Wherein, the aerodynamic noise produced during motor rotation comprises the pneumatic noise formed when cooling fan, the rotor of rotation and air-flow flow along wind path, and the noise of cooling fan is formed by eddy current crack, rotational noise and machinery noise, these noises can be blazed abroad by motor fan housing, thus cause noise pollution to environment.In order to noise when motor runs can be reduced, the following noise reduction measure of main employing at present, one is change the shape of the radiator fan of motor, adopt the unidirectional hypsokinesis fan more meeting fluidic structures, although this fan can reduce noise of motor, but be only applicable to the low-power machine of 315 ~ 355kW, the motor for more than 500kW does not still reach the requirement of 85dB (A), and the fan blade manufacture difficulty of fan is larger; Two is adopt noise reduction end shield, reach noise reduction object, but noise reduction still can not reach desirable by noise isolation; Three is utilize the type of cooling of water-cooled to carry out heat radiation noise reduction, although good heat dissipation effect, and the requirement reducing noise can be reached, but support manufacture difficulty is large, and cost is high, high to user's field requirement, need inlet and outlet system, easily occur leaking, the problem such as water channel gets rusty, water channel fouling, not only waste water resource, and can not being applicable in the environment of less than 0 DEG C.
The mode of above-mentioned three kinds of heat radiation noise reductions just solves for individual motor, and for industrial motor, major part is used in some large-scale industrial and mining enterprises, such as petrochemical plant, oil plant, steel mill, coking plant etc., and often there are thousands of motors in an enterprise, a large amount of electromechanical equipment gives off strong noise in the running, combined reaction goes out electromechanical equipment can produce very large problem of noise pollution in operation process, and noise pollution is as the important indicator weighing environmental pollution aspect, therefore, the noise pollution that each enterprise occurs electromechanical equipment and how to carry out the Main Topics that efficiently radiates heat noise reduction become current.
Summary of the invention
The object of this invention is to provide a kind of reasonable in design, all applicable for all motors, all can meet the requirement of sound pressure level 85dB (A), and effectively can reduce the motor group centralized supply wind heat radiation noise reduction system of noise of motor pollution.
Realizing the technical scheme that object of the present invention takes is: this system comprises motor, noise reduction room, blower fan and airduct, wherein, motor does not establish radiator fan, the motor fan housing of its tail end does not establish ventilated net window, only an air inlet is set in the centre of motor fan housing end, fan housing flange air inlet is equipped with, noise reduction room is arranged in factory or in each worker-house, noise reduction room is built with the blower fan for centralized supply wind, the noise reduction room wall that fan outlet is corresponding is provided with ventilating opening, ventilating opening is communicated with the outside air main be erected on support, air main is laid with several point of branch wind pipe, the air outlet of each point of branch wind pipe is communicated with the air inlet that each motor fan housing is arranged respectively.
The body of wall in described noise reduction room is noise elimination brick masonry structure, and door is the wood interlayer structure that central filler has silencing cotton, and roof is cement cast-in-place structural, and is provided with acoustical panel furred ceiling.
What described acoustical panel adopted is rock wool acoustical panel or polyester fiber acoustical panel or noise reduction block of glass wool.
Described blower fan adopts the axial flow type heat radiation blower fan of the 500kW ~ 1250kW of variable frequency control.
Described air main, point branch wind pipe are the flexible industrial ventilation pipe of fabric, wherein, the air inlet of air main and the air outlet place of each point of branch wind pipe are respectively equipped with hard adpting flange, air main is connected with the ventilating opening on noise reduction room wall by hard adpting flange, branch wind pipe is divided to be connected with one section of steel ventilation duct by hard adpting flange, the air-out port of steel ventilation duct is with ventilation tube flange, and ventilation tube flange is by the fan housing Flange joint on bolt and motor fan housing.
Described steel ventilation duct is equipped with for regulating air volume and the manual adjustments air door opening and closing point branch wind pipe air quantity.
The motor group centralized supply wind heat radiation noise reduction system made according to such scheme, its beneficial effect is:
(1) without the need to carrying out cooling heat dissipation, noise reduction for the individual motor in factory, but systematic comprehensive solution is carried out to motors all in factory.
(2) scope of application is wide, all applicable for the motor run in factory.
(3) have employed the mode cooling heat dissipation of motor, decrease of noise functions combined, by large fan to the motor group centralized supply wind in worker-house, air quantity is large, effectively can not only improve the cooling heat dissipation effect of motor, and it is easy to operate, safe and reliable, noise reduction is obvious, and the noise that motor group is in operation all can reach the requirement of≤85dB (A).
(4) airduct all adopts the flexible industrial ventilation pipe air-supply of fabric, greatly reduces cost, and meets air-supply effect completely.Due to the lighter weight of fabric airduct own, and install convenient, both solved the problem of load-bearing, and solved again an installation difficult problem, what make originally complicated fabrication and installation operation become very is simple.
(5) can environmentally temperature, regulate the air quantity of blower fan, during ambient temperature height in summer, air quantity is higher, when winter conditions temperature is low, can reduce air quantity.
(6) concerning slowspeed machine, adopt the fan originally carried, when the slow-speed of revolution, air quantity is less, heat-sinking capability is poor, and after adopting centralized supply wind, because cooling air quantity is not by the restriction of motor speed, greatly can improve the power density of motor, reduce motor volume, reduce motor cost.
(7) due to motor not establishing fan, effectively prevent the amount of unbalance because electric motor fan causes, because vibrating, the noise produced is corresponding also can be reduced much motor.
(8) energy-saving effect is remarkable, reduces carbon emission.Need the coking plant of 50,000 kW motors for one, the motor of 50,000 kW, the mechanical loss that its electric motor fan produces greatly about about 600kW, and adopts this programme, uses the loss of blower fan generation on average at about 150kW, only this item saves energy 450kW; Because some motor is that whole day is working for 24 hours always, some motor one day work 8 hours, on average within 12 hours, calculate by every platform motor darg, work in 1 year calculates for 300 days, 1 year saves energy 450*12*300=1620000kW.h, often to spend electricity 0.8 yuan of calculating, save 129.6 ten thousand yuan altogether.The electric energy saved is equivalent to saving 648 tons of standard coals, saves 6480 tons of water.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Referring to Fig. 1, motor group centralized supply wind heat radiation noise reduction system of the present invention comprises motor 1, noise reduction room 8, blower fan 9 and airduct, wherein, motor 1 does not establish radiator fan, the motor fan housing 2 of its tail end does not establish ventilated net window, only an air inlet is set in the centre of motor fan housing 2 end, fan housing flange 3 air inlet is equipped with, noise reduction room 8 is arranged in factory or in each worker-house, the body of wall in this noise reduction room 8 is noise elimination brick masonry structure, door 10 is interlayer wooden structures, interlayer central filler has silencing cotton, roof is cement cast-in-place structural, and be provided with acoustical panel furred ceiling 11, acoustical panel in its acoustical panel furred ceiling 11 can adopt rock wool acoustical panel or polyester fiber acoustical panel or noise reduction block of glass wool etc.Noise reduction room 8 is built with the blower fan 9 for centralized supply wind, this blower fan adopts the axial flow type heat radiation blower fan of the 500kW ~ 1250kW of variable frequency control, the noise reduction room wall that fan outlet is corresponding is provided with ventilating opening, ventilating opening is communicated with the outside air main 6 be erected on support 7, air main 6 is laid with several point of branch wind pipe 6-1, and the air outlet of each point of branch wind pipe 6-1 is communicated with the air inlet that each motor fan housing 2 is arranged respectively.Described air main 6, point branch wind pipe 6-1 are the flexible industrial ventilation pipe of fabric, wherein, the air inlet of air main 6 and the air outlet place of each point of branch wind pipe 6-1 are respectively equipped with hard adpting flange 12,13, air main 6 is connected with the ventilating opening that noise reduction room 8 is arranged by hard adpting flange 12, branch wind pipe 6-1 is divided to be connected with one section of steel ventilation duct 4 by hard adpting flange 13, the air-out port of steel ventilation duct 4 is with ventilation tube flange, and ventilation tube flange is connected with the fan housing flange 3 on motor fan housing 2 by bolt.Described steel ventilation duct 4 is provided with for regulating air volume and the manual adjustments air door 5 opening and closing point branch wind pipe 6-1 air quantity, this air door is the vertical lifting air door of Non-follow control, its structure is simple, the unlatching of air door is changed by mechanical rotation, and then change draught area, control the flow ventilated.And can the size of flexible air quantity according to demand, simple to operation, convenient.This air door directly can be purchased in market, and its structure repeats no more.
heat radiation noise reduction system of the present invention is applicable to some large and medium-sized industrial and mining enterprises, such as petrochemical plant, oil plant, steel mill, coking plant etc.Often there are thousands of motors in an enterprise, therefore in the present case, motor 1 no longer arranges radiator fan, the motor fan housing 2 of its tail end also no longer arranges ventilated net window, just arrange an air inlet in the centre of motor fan housing 2 end, air inlet is equipped with fan housing flange 3; Build a noise reduction room 8 in factory or in each worker-house simultaneously, in room, a large fan 9 is installed, by blower fan 9 to the motor group centralized supply wind in worker-house, blower fan 9 adopts variable frequency control, speed is adjustable, during summer temperature height, air quantity can tune up, when winter temperature is low, air quantity can be turned down, and to reach fully energy-conservation effect, the power of blower fan 9 is that the cooling air quantity needed according to motor in factory is determined, relevant with the scale of factory and the quantity of motor, the large fan of 500kW ~ 1250kW can be equipped with.The present invention utilizes flexible duct cooling-air to be delivered to each motor to carry out cooling, airduct adopts flexible material, and stuffy is flat, forms pipeline after ventilation, air pipe utilizes in factory or the support 7 of erection in each worker-house supports, and fully can reduce input cost like this.In energy-conservation, because the radiator fan efficiency be arranged on motor is very low, generally only have about 20%, and adopting being dispelled the heat by blower fan 9 centralized supply wind in this programme, its efficiency can reach more than 70%, considers trunking loss, efficiency is greatly about about 60%, and therefore energy-saving effect is fairly obvious.Simultaneously when ordering motor, require that motor manufacturer cancels the cooling fan of motor, and need not require that motor meets the requirement of low noise, the purchase cost of such motor also will reduce about 10%.
Claims (6)
1. a motor group centralized supply wind heat radiation noise reduction system, it is characterized in that: this system comprises motor, noise reduction room, blower fan and airduct, wherein, motor does not establish radiator fan, the motor fan housing of its tail end does not establish ventilated net window, only an air inlet is set in the centre of motor fan housing end, fan housing flange air inlet is equipped with, noise reduction room is arranged in factory or in each worker-house, noise reduction room is built with the blower fan for centralized supply wind, the noise reduction room wall that fan outlet is corresponding is provided with ventilating opening, ventilating opening is communicated with the outside air main be erected on support, air main is laid with several point of branch wind pipe, the air outlet of each point of branch wind pipe is communicated with the air inlet that each motor fan housing is arranged respectively.
2. motor group centralized supply wind heat radiation noise reduction system according to claim 1, it is characterized in that: the body of wall in described noise reduction room is noise elimination brick masonry structure, door is the wood interlayer structure that central filler has silencing cotton, and roof is cement cast-in-place structural, and is provided with acoustical panel furred ceiling.
3. motor group centralized supply wind according to claim 3 heat radiation noise reduction system, is characterized in that: what the acoustical panel in described acoustical panel furred ceiling adopted is rock wool acoustical panel or polyester fiber acoustical panel or noise reduction block of glass wool.
4. motor group centralized supply wind heat radiation noise reduction system according to claim 1, is characterized in that: described blower fan adopts the axial flow type heat radiation blower fan of the 500kW ~ 1250kW of variable frequency control.
5. motor group centralized supply wind heat radiation noise reduction system according to claim 1, it is characterized in that: described air main, branch wind pipe is divided to be the flexible industrial ventilation pipe of fabric, wherein, the air inlet of air main and the air outlet place of each point of branch wind pipe are respectively equipped with hard adpting flange, air main is connected with the ventilating opening on noise reduction room wall by hard adpting flange, branch wind pipe is divided to connect one section of steel ventilation duct by hard adpting flange, the air-out port of steel ventilation duct is with ventilation tube flange, ventilation tube flange is by the fan housing Flange joint on bolt and motor fan housing.
6. motor group centralized supply wind heat radiation noise reduction system according to claim 5, is characterized in that: described steel ventilation duct is provided with for regulating air volume and the manual adjustments air door opening and closing point branch wind pipe air quantity.
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| CN201510015698.9A CN104578587B (en) | 2015-01-13 | 2015-01-13 | A kind of motor group centralized supply wind radiating noise reduction system |
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| CN201510015698.9A CN104578587B (en) | 2015-01-13 | 2015-01-13 | A kind of motor group centralized supply wind radiating noise reduction system |
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| CN104578587A true CN104578587A (en) | 2015-04-29 |
| CN104578587B CN104578587B (en) | 2017-08-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108293313A (en) * | 2015-11-04 | 2018-07-17 | 瑞泰控股公司 | Cooling system for the device being arranged in rows |
| CN108302250A (en) * | 2017-01-11 | 2018-07-20 | 尤利卡(上海)集成电气有限公司 | Adjustable support and its control system, transformer station box cooling system |
| CN112039287A (en) * | 2020-08-27 | 2020-12-04 | 广东韶钢松山股份有限公司 | Cooling dust removal system of direct current motor in steel rolling workshop and steel rolling system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118201323A (en) | 2018-10-02 | 2024-06-14 | 瑞泰控股公司 | Air barrier system for data center area isolation |
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| CN204376629U (en) * | 2015-01-13 | 2015-06-03 | 南阳防爆集团股份有限公司 | A kind of motor group centralized supply wind heat radiation noise reduction system |
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Patent Citations (4)
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| CN2356165Y (en) * | 1999-01-22 | 1999-12-29 | 卞思海 | Noise eliminating fan |
| CN201278016Y (en) * | 2008-10-13 | 2009-07-22 | 中国北车股份有限公司大连电力牵引研发中心 | Ventilation system for experiment electric motor |
| CN203056769U (en) * | 2012-12-14 | 2013-07-10 | 上海洛兴包装材料有限公司 | Motor centralized cooling device used for manufacturing polystyrene sheet material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108293313A (en) * | 2015-11-04 | 2018-07-17 | 瑞泰控股公司 | Cooling system for the device being arranged in rows |
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| CN108302250A (en) * | 2017-01-11 | 2018-07-20 | 尤利卡(上海)集成电气有限公司 | Adjustable support and its control system, transformer station box cooling system |
| CN112039287A (en) * | 2020-08-27 | 2020-12-04 | 广东韶钢松山股份有限公司 | Cooling dust removal system of direct current motor in steel rolling workshop and steel rolling system |
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| CN104578587B (en) | 2017-08-08 |
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Address after: 473008 No. 1801 Dushan Avenue, Nanyang City, Henan Province Patentee after: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. Address before: 473008 No. 22 Zhongjing North Road, Nanyang, Henan Patentee before: NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. |
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