CN103047898A - Air inlet guide method for mechanical ventilation water tower - Google Patents
Air inlet guide method for mechanical ventilation water tower Download PDFInfo
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- CN103047898A CN103047898A CN201310033573XA CN201310033573A CN103047898A CN 103047898 A CN103047898 A CN 103047898A CN 201310033573X A CN201310033573X A CN 201310033573XA CN 201310033573 A CN201310033573 A CN 201310033573A CN 103047898 A CN103047898 A CN 103047898A
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Abstract
The invention discloses an air inlet guide method for a mechanical ventilation water tower. When a mechanical ventilation cooling water tower works, air is pumped in a tower drum by draft fraught generated by the rotating of a fan; airflow possibly generates turbulent flow in some spaces because of different tower entry paths, influence of environment natural wind, interior arrangement nonuniformity of the tower and the interaction between geometry space in the tower and airflow. According to the air inlet guide method for the mechanical ventilation water tower, provided by the invention, guide plates are perpendicular to the air inlet, are uniformly distributed on the outer side of an air inlet of the mechanical ventilation water tower and are used for guiding airflow entering the tower. The mechanical ventilation water tower inlet air guide method provided by the invention is suitable for mechanical cooling water towers in which air flows in circumferential direction.
Description
Technical field:
The present invention relates to the air inlet water conservancy diversion of the force ventilation cooling tower of refrigeration industry, air-conditioning industry.
Background technology:
Because the force ventilation counterflow cooling tower has flexible arrangement, operation is ripe, is widely used in carrying out the place of cooling operations.The reverse-flow cooling tower of force ventilation generally is comprised of water distribution system, packing, water collection device, tower body and blower fan system (comprising blower fan, motor and air duct).Small-sized tower generally adopts glass fibre reinforced plastic structure or steel construction, and Large Towers generally adopts reinforced concrete structure.
The force ventilation cooling tower utilizes the power of blower fan, and with the air inlet of air intake water tower, in tower, air and hot water exchange by heat and mass, have reduced water temperature, has finished water tower and will enter the task that the tower water temperature reduces.The cooling effectiveness of force ventilation tower, multifactor relevant with environmental condition, design parameter (blower fan pattern, power, water tower physical dimension, filling area, thickness etc.), cooling water flow etc.In meteorological condition, design condition identical (fan capacity, filler layout, water distribution layout, incoming air area etc. are identical), under the condition that cooling water flow equates, enter what of tower air capacity, will determine the cooling effectiveness of water tower.Under above-mentioned constraint, if reduce the flowing resistance of water tower, just can increase intake.The water tower flowing resistance is formed by air intake vent resistance, rain belt resistance, filler resistance, water distribution and dehydrater resistance, blower fan and resistance to flow output comprehensive function.
During the work of force ventilation cooling tower, air rotates the draft that produces by blower fan and is drawn in the tower cylinder, owing to the difference of entering the tower path, owing to the naturally Wind effect, owing to the inhomogeneities of arranging in the tower, also owing to the interaction of the interior geometric space of tower and air stream, air stream can be at some spaces generation turbulent flows.Turbulent flow is a kind of very complicated astable Three-dimensional Flow, on physical arrangement, can regard turbulent flow as vortex by various different scales is formed by stacking flow, and the size of these vortexs and rotating shaft direction, speed and pressure all are at random.Vortex constantly interacts, and has increased the consumption of air-flow in tower, has namely increased the flowing resistance of water tower, has reduced intake.
Compare with the gravity-flow ventilation water tower, the force ventilation tower is subjected to the adverse effect of naturally wind fewer, but it is larger to advance the wind speed of tower, in case form turbulent flow, has larger consumption.At the air inlet of force ventilation tower, horizontal deflector (arc) is set, be improved the effect of airflow homogeneity in the tower.
Summary of the invention:
The purpose of this invention is to provide a kind of turbulent flow that reduces in the tower, reduced in the tower and the resistance of air inlet, increased intake, improved the force ventilation water tower air intake vent method of river diversion of the cooling effectiveness of cooling tower.
The method of river diversion of a kind of force ventilation water tower air intake vent, in the air inlet outside of force ventilation tower, uniform setting is perpendicular to the deflector that plays guide effect to entering the tower air stream of air inlet.
The method of river diversion of described force ventilation water tower air intake vent, described deflector and air inlet height are contour, the thickness of described deflector, select thin thickness satisfying in mechanical strength and the rigidity needs situation, the spacing of adjacent baffle, be 1/4 of air inlet height---1/1, the width of deflector is 1/3-2/3 of air inlet height.
The method of river diversion of described force ventilation water tower air intake vent, the deadener of described baffle surface tool absorbing sound and lowering noise function or described baffle surface film mulching method stick sound-absorbing material.
The method of river diversion of described force ventilation water tower air intake vent when described deflector is installed, radially becomes the α angle with draw at the center, pond, and the interval of α carries out determining after theory analysis and the test according to the design parameter of water tower between-80-+80 degree.
The method of river diversion of described force ventilation water tower air intake vent, described deflector adopts steel, fiberglass, plastics, aluminium alloy, concrete for making, and described deflector is plate, arc or polygon.
Beneficial effect:
1. the present invention is directed to the force ventilation counterflow cooling tower of circumferential air intake, arrange vertical deflector at air inlet, make into the tower air stream under Prosthesis's inducing, according to the most favourable angle that sets, enter water tower, form the stable air-flow with certain rotation.The present invention is applicable to the mechanical cooling tower of circumferential air intake.In the water tower air inlet outside, arrange vertical deflector, can play inducing action to entering the tower air stream, make into the tower air and form the movement locus that is similar to the typhoon formation and development at air inlet, in cooling tower, form stable rotation ascending air, thereby reduced the space of turbulent flow in the tower, reduced air drag, increased intake more than 3%.
. the present invention arranges vertical deflector at the air inlet of force ventilation tower, has broken through traditional idea.We are according to theory analysis, done test of many times in the laboratory, find and proof, at the water tower air intake vent vertical deflector is installed, can be played inducing action to entering the tower air stream, make into the tower air and form the movement locus that is similar to the typhoon formation and development at air inlet, in cooling tower, form stable rotation ascending air, thereby reduced the space of turbulent flow in the tower and the energy of consumption, reduced air drag, increased intake.
. we have carried out test of many times, find and proof that under the ideal conditions without natural wind, this device can improve intake 3%.Having under the natural wind condition, with respect to traditional water tower, intake increases greater than 3%, and natural wind speed is larger, and the difference of intake is also larger.
The present invention is applicable to the force ventilation counterflow cooling tower of circumferential air intake.China's refrigeration, air-conditioning system adopt the water tower of this pattern in a large number at present.Coming of new or original water tower transformation can be adopted this technology.
Description of drawings:
Accompanying drawing 1 is structural representation of the present invention.1-blower fan among the figure, 2-dehydrater, 3-filler, the 4-district of drenching with rain, 5-deflector, 6-collecting-tank, 7-deep bead, 8-deep bead and angle radially.
The specific embodiment:
Embodiment 1:
The method of river diversion of a kind of force ventilation water tower air intake vent, in the air inlet outside of force ventilation tower, uniform setting is perpendicular to the deflector that plays guide effect to entering the tower air stream of air inlet, and the deflector hoop is uniform to be arranged in the whole 360 degree scopes, leaves to loopholes.
Described deflector and air inlet height are contour, and the thickness of described deflector selects thin thickness satisfying in mechanical strength and the rigidity needs situation, the spacing of adjacent baffle, be 1/4 of air inlet height---1/1, the width of deflector is 1/3-2/3 of air inlet height.
Embodiment 2:
Embodiment 3:
Embodiment 4:
Embodiment 5:
For the water tower of concrete circumferential air intake, determine manufacturing and the installation of vertical deflector.Make and generally should in factory, finish in batch, to guarantee the quality of deflector.
(1) determine the installation site of deflector---vertical deflector is evenly arranged in the outside of water tower air inlet.
(2) determine the height of deflector---contour with the air inlet height.The width of general deflector, can the air inlet height 1/3-2/3 between select.
(3) determine the thickness of deflector---under the prerequisite that satisfies mechanical strength and rigidity, Bao Yuehao more.
(4) spacing of determining adjacent baffle---is chosen as 1/4 of air inlet height---1/1.Thereby determined the required deflector quantity of a water tower.Be generally 80---120.
(5) determine deflector and pond angle radially---α, the interval of α carries out determining after theory analysis and the test according to the design parameter of water tower.Generally between-80-+80 degree.
(6) material of deflector, optional fiberglass or plastics.For reducing the overseas publicity of pond waterfall noise, the baffle surface film mulching method sticks sound-absorbing material, can reduce a certain amount of noise.
(7) deflector can select securing member and water tower tower body to fix, also can adopt cementing, the welding (during plastic material) technique finish.
Claims (5)
1. force ventilation water tower air intake vent method of river diversion is characterized in that: in the air inlet outside of force ventilation tower, uniform setting is perpendicular to the deflector that plays guide effect to entering the tower air stream of air inlet.
2. force ventilation water tower air intake vent according to claim 1 method of river diversion, it is characterized in that: described deflector and air inlet height are contour, the thickness of described deflector, select thin thickness satisfying in mechanical strength and the rigidity needs situation, the spacing of adjacent baffle, be the 1/4---1/1 of air inlet height, the width of deflector is 1/3-2/3 of air inlet height.
3. according to claim 1 and 2 described force ventilation water tower air intake vent method of river diversion is characterized in that: the deadener of described baffle surface tool absorbing sound and lowering noise function or described baffle surface film mulching method, stick sound-absorbing material.
4. according to claim 1 and 2 described force ventilation water tower air intake vent method of river diversion, it is characterized in that: when described deflector is installed, radially become the α angle with draw at the center, pond, the interval of α carries out determining after theory analysis and the test according to the design parameter of water tower between-80-+80 degree.
5. according to claim 1 or 2 described force ventilation water tower air intake vent methods of river diversion, it is characterized in that: described deflector adopts steel, fiberglass, plastics, aluminium alloy, concrete for making, and described deflector is plate, arc or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310033573XA CN103047898A (en) | 2013-01-29 | 2013-01-29 | Air inlet guide method for mechanical ventilation water tower |
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| CN201310033573XA CN103047898A (en) | 2013-01-29 | 2013-01-29 | Air inlet guide method for mechanical ventilation water tower |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239967A (en) * | 2013-05-30 | 2013-08-14 | 昆明中天达玻璃钢开发有限公司 | Glass reinforced plastic foam removing and water collecting device |
| CN107367176A (en) * | 2017-07-20 | 2017-11-21 | 国粤（深圳）科技投资有限公司 | Cooling tower with fair water cone |
| CN107401933A (en) * | 2017-07-20 | 2017-11-28 | 国粤（深圳）科技投资有限公司 | circular counter-flow cooling tower |
| CN108286906A (en) * | 2018-04-11 | 2018-07-17 | 上海核工程研究设计院有限公司 | A kind of service water system blowing-type force ventilation seawater cooling tower |
| CN108302974A (en) * | 2018-04-11 | 2018-07-20 | 上海核工程研究设计院有限公司 | A kind of blowing-type force ventilation seawater cooling tower air inlet optimization structure |
| CN108458603A (en) * | 2018-05-24 | 2018-08-28 | 德州贝诺风力机械设备有限公司 | A kind of cooling tower |
| CN109209980A (en) * | 2017-06-30 | 2019-01-15 | 中国航发商用航空发动机有限责任公司 | A kind of deflector for axial flow compressor |
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| JPS6341796A (en) * | 1986-08-06 | 1988-02-23 | Mitsui Toatsu Chem Inc | Cooling tower |
| CN201184670Y (en) * | 2007-11-29 | 2009-01-21 | 北京绿创声学工程股份有限公司 | Mechanical-draft cooling tower silencing device |
| CN201302422Y (en) * | 2008-11-27 | 2009-09-02 | 华北电力大学（保定） | Even air intake guiding device for natural ventilation cooling tower |
| CN201903284U (en) * | 2010-12-20 | 2011-07-20 | 中国电力工程顾问集团科技开发有限公司 | Multifunctional composite air intake control device for counter flow type natural draft cooling tower |
| CN102401581A (en) * | 2011-07-27 | 2012-04-04 | 中国电力工程顾问集团西北电力设计院 | Mixed ventilation indirect cooling tower system and cooling method thereof |
| CN202204336U (en) * | 2011-07-28 | 2012-04-25 | 湖南省电力勘测设计院 | Assistant ventilating reverse flow wet type cooling tower |
| CN202350653U (en) * | 2011-07-28 | 2012-07-25 | 湖南省电力勘测设计院 | Four corner tangential flow guide wind resistance device |
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2013
- 2013-01-29 CN CN201310033573XA patent/CN103047898A/en active Pending
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| JPS6341796A (en) * | 1986-08-06 | 1988-02-23 | Mitsui Toatsu Chem Inc | Cooling tower |
| CN201184670Y (en) * | 2007-11-29 | 2009-01-21 | 北京绿创声学工程股份有限公司 | Mechanical-draft cooling tower silencing device |
| CN201302422Y (en) * | 2008-11-27 | 2009-09-02 | 华北电力大学（保定） | Even air intake guiding device for natural ventilation cooling tower |
| CN201903284U (en) * | 2010-12-20 | 2011-07-20 | 中国电力工程顾问集团科技开发有限公司 | Multifunctional composite air intake control device for counter flow type natural draft cooling tower |
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| CN202204336U (en) * | 2011-07-28 | 2012-04-25 | 湖南省电力勘测设计院 | Assistant ventilating reverse flow wet type cooling tower |
| CN202350653U (en) * | 2011-07-28 | 2012-07-25 | 湖南省电力勘测设计院 | Four corner tangential flow guide wind resistance device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239967A (en) * | 2013-05-30 | 2013-08-14 | 昆明中天达玻璃钢开发有限公司 | Glass reinforced plastic foam removing and water collecting device |
| CN109209980A (en) * | 2017-06-30 | 2019-01-15 | 中国航发商用航空发动机有限责任公司 | A kind of deflector for axial flow compressor |
| CN109209980B (en) * | 2017-06-30 | 2020-06-05 | 中国航发商用航空发动机有限责任公司 | Guide plate for axial flow compressor |
| CN107367176A (en) * | 2017-07-20 | 2017-11-21 | 国粤（深圳）科技投资有限公司 | Cooling tower with fair water cone |
| CN107401933A (en) * | 2017-07-20 | 2017-11-28 | 国粤（深圳）科技投资有限公司 | circular counter-flow cooling tower |
| CN107401933B (en) * | 2017-07-20 | 2020-01-03 | 国粤（深圳）科技投资有限公司 | Circular counter-flow cooling tower |
| CN108286906A (en) * | 2018-04-11 | 2018-07-17 | 上海核工程研究设计院有限公司 | A kind of service water system blowing-type force ventilation seawater cooling tower |
| CN108302974A (en) * | 2018-04-11 | 2018-07-20 | 上海核工程研究设计院有限公司 | A kind of blowing-type force ventilation seawater cooling tower air inlet optimization structure |
| CN108458603A (en) * | 2018-05-24 | 2018-08-28 | 德州贝诺风力机械设备有限公司 | A kind of cooling tower |
| CN108458603B (en) * | 2018-05-24 | 2023-11-28 | 德州贝诺风力机械设备有限公司 | Cooling tower |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Guanhong Inventor before: Zhao Kangxiong Inventor before: Yu Jianyu Inventor before: Peng Yunsheng |
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Effective date of registration: 20160720 Address after: 150000 Heilongjiang City, Nangang Province, East District, the city of Victoria Street, unit 299, building 2, building 2 Applicant after: Harbin Dong Zhuan Science and Technology Ltd. Address before: 150028, No. 629, science and Technology Street, Harbin science and technology innovation town, Harbin, Heilongjiang, Songbei Applicant before: Yu Shen Science and Technology Co., Ltd. |
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Application publication date: 20130417 |