CN102401581B - Mixed ventilation indirect cooling tower system and cooling method thereof - Google Patents
Mixed ventilation indirect cooling tower system and cooling method thereof Download PDFInfo
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- CN102401581B CN102401581B CN 201110210795 CN201110210795A CN102401581B CN 102401581 B CN102401581 B CN 102401581B CN 201110210795 CN201110210795 CN 201110210795 CN 201110210795 A CN201110210795 A CN 201110210795A CN 102401581 B CN102401581 B CN 102401581B
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Abstract
The invention discloses a mixed ventilation indirect cooling tower system and a cooling method thereof. The system comprises a shutter, a radiator and a machinery ventilation auxiliary unit arranged on a broadening platform of a hyperbola natural ventilation tower. The machinery ventilation auxiliary unit is arranged around a tower wall of the natural ventilation tower. When a blower fan of the machinery ventilation auxiliary unit is turned on, part of hot air passing through the radiator will enter an air inlet apparatus, be accelerated by the blower fan and rectified by an air outlet apparatus and goes up along an inner wall of the tower into a tower cylinder. The invention has beneficial effects that scale of the cooling system is reduced; the system is flexibly operated and has strong adaptation to load change; influence of environment to the system is improved, such as freeze proof.
Description
Technical field:
The invention belongs to engineering field, relate to a kind of external fan machinery and natural mixed ventilation indirect cool tower system and cooling means thereof.
Background technology:
The indirect air cooling technology is used in recent years and is increasingly increased because meeting current energy-saving and emission-reduction policy.Indirect air cooling system commonly used is equipped with the hyperbolic-type natural draft cooling tower.
At present, along with the raising of exterior technology and requirement, make the scale of indirect cool tower do larger and larger; The external load variation that cooling system is accepted also becomes increasingly complex, and the adaptability of tackling mutually cooling system also proposes requirements at the higher level; Emerging in an endless stream of extreme climate weather also made cooling system will strengthen the adaptability of environment thereupon in recent years, antifreeze as winter.
In prior art, in the force ventilation cooling procedure, blower fan and air channel are arranged the flow field in tower impact large, the cooling and antifreeze control function of force ventilation mode spike a little less than, it is not enough that flexibility is controlled in system environments adaptability and operation, the scale of indirect cool tower is large.
Summary of the invention:
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of mixed ventilation indirect cool tower system and cooling means thereof are provided, this system is take natural ventilation system as Major Cooling Methods, and in the force ventilation mode as aided cooling mode, this combination can reduce power consumption; In the force ventilation cooling procedure, arrange to reduce by special blower fan and air channel affects flow field in tower as far as possible, strengthen simultaneously the cooling and antifreeze control function of force ventilation mode spike, greatly improve system environments adaptability and operation control flexibility, reduced accordingly the scale of indirect cool tower.
The objective of the invention is to solve by the following technical programs:
A kind of mixed ventilation indirect cool tower system comprises shutter, radiator and is arranged on force ventilation auxiliary unit on hyperbola gravity-flow ventilation tower broadening platform that this force ventilation auxiliary unit arranges along hyperbola gravity-flow ventilation tower tower wall circumferential annular.
Described force ventilation auxiliary unit comprises air inlet device, blower fan, elbow, shaped piece, wind outlet unit and deflector; Described air inlet device annular is arranged on hyperbola gravity-flow ventilation tower tower wall periphery, and each air inlet device upper end is communicated with elbow, and the elbow upper end is communicated with shaped piece, and this shaped piece wind outlet unit interior with putting in tower is communicated with.
Be provided with blower fan between described air inlet device and elbow.
Described air inlet device bottom is provided with deflector.
The cross section of described air inlet device and wind outlet unit is all rectangle.
Cooling means based on described mixed ventilation indirect cool tower system comprises the steps:
Under natural ventilating status, in radiator entered tower, when flowing through radiator and heating agent generation heat exchange and heating up, then hot-air was raised to tower top and discharges the external environment cold air by the tower bottom shutter; Lower than the outer cold air of tower, the inside and outside density contrast of tower provides air the continuous power that flows due to hot-air density;
In the situation that force ventilation auxiliary unit blower fan is opened, understand some by air inlet device through the hot-air of radiator, accelerate through blower fan, upward enter the tower cylinder along inner wall of tower by the wind outlet unit rectification is backward.
The invention has the beneficial effects as follows: reduced the cooling system scale; System's flexible operation, adaptable to load variations; Improved the impact of environment on system, as antifreeze.
Description of drawings:
Fig. 1 is vertical placement of mechanical of the present invention and natural mixed ventilation cooling tower elevation;
Fig. 2 is force ventilation auxiliary unit floor plan of the present invention;
Fig. 3 is force ventilation auxiliary unit of the present invention system elevation;
Fig. 4 is force ventilation auxiliary unit System planes figure of the present invention;
Fig. 5 is the force ventilation auxiliary unit A--A of system cutaway view of the present invention;
Fig. 6 is the force ventilation auxiliary unit B--B of system cutaway view of the present invention.
Wherein: 1 is air inlet device; 2 is blower fan; 3 is elbow; 4 is shaped piece; 5 is wind outlet unit; 6 is deflector; 7 is hyperbola gravity-flow ventilation tower; 8 are the force ventilation auxiliary unit; 9 is radiator; 10 is shutter.
The specific embodiment:
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Shown in Figure 1, core apparatus force ventilation auxiliary unit of the present invention is installed on conventional gravity-flow ventilation indirect cool tower broadening platform.Under natural ventilating status, in radiator entered tower, when flowing through radiator and heating agent generation heat exchange and heating up, then hot-air was raised to tower top and discharges the external environment cold air by the tower bottom shutter.Lower than the outer cold air of tower, the inside and outside density contrast of tower provides air the continuous power that flows due to hot-air density.The face velocity size is determined by each air drag balance in cooling tower draft and tower, and radiating effect and face velocity are in close relations.In the situation that force ventilation auxiliary unit blower fan is opened, understand some by air inlet device through the hot-air of radiator, accelerate through blower fan, upward enter the tower cylinder along inner wall of tower by the wind outlet unit rectification is backward.The air inlet device deflector act as and reduces the secondary ventilation unit to the flow field in tower negative effect, the air outlet cross section is rectangle, arranging along the inner wall of tower border, is also the unfavorable interference that as far as possible reduces when bringing into play the advantage of force ventilation between force ventilation and gravity-flow ventilation.
In the differing heights top view shown in Fig. 2-6, can find out, radiator, air inlet device, blower fan, wind outlet unit hierarchical relationship from the bottom to top, wherein air inlet device is due to equipment such as needs carrying blower motors, can be by material welding productions such as steel plates, wind outlet unit can adopt sheet iron processing, and the saving fund of trying one's best also is convenient to be fixed on the tower cylinder.The supporting construction that the force ventilation auxiliary unit is arranged should be unified into ring-type, considers and the radiator supporting structure Uniting.
The present invention vertically arranges at radiator and arranges a circle force ventilation auxiliary unit on gravity-flow ventilation indirect cool tower broadening platform outside tower, and this auxiliary unit is comprised of air inlet device, blower fan, elbow, shaped piece, wind outlet unit 5 parts, sees Figure of description for details.The maximum technical characterstic of this auxiliary unit is external fan, outside the gravity-flow ventilation flow field that namely blower fan is in fully that the tower cylinder causes, thereby can reduce to the full extent the blower fan shut down condition time to the adverse effect of natural ventilation system.During the blower fan normal operation, in tower, hot-air is except obtaining lifting by natural ventilation system, also have part to be sucked by the auxiliary unit air inlet device, after promoting, blower fan upwards discharged by wind outlet unit, owing to having obtained the extrinsic motive that blower fan provides, the mixed ventilation indirect cool tower can provide face velocity and the better cooling effect higher than natural ventilation system, has reduced accordingly the scale of indirect cool tower.
By technology such as employing fan frequency conversion speed governing, the running status of blower fan and mode can be regulated flexibly, and therefore, for the external load variation of complexity, the adaptability of mixed ventilation indirect cool tower and operation are controlled flexibility and also be much higher than natural ventilation system.
Again it, the preventing freeze in winter pattern, cooling system can be by open and close controlling and the operation control (as the blade reversing) to assisting blower fan in cooling unit to the peripheral shutter of radiator, to disturb flow field in tower, increase air drag and then reduction face velocity in tower, reach antifreeze purpose.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of submitting to.
Claims (5)
1. mixed ventilation indirect cool tower system, it is characterized in that: comprise shutter, radiator and be arranged on force ventilation auxiliary unit on hyperbola gravity-flow ventilation tower broadening platform, this force ventilation auxiliary unit arranges along hyperbola gravity-flow ventilation tower tower wall circumferential annular; Described force ventilation auxiliary unit comprises air inlet device, blower fan, elbow, shaped piece, wind outlet unit and deflector; Described air inlet device annular is arranged on hyperbola gravity-flow ventilation tower tower wall periphery, and each air inlet device upper end is communicated with elbow, and the elbow upper end is communicated with shaped piece, and this shaped piece wind outlet unit interior with putting in tower is communicated with.
2. a kind of mixed ventilation indirect cool tower system as claimed in claim 1, is characterized in that: be provided with blower fan between described air inlet device and elbow.
3. a kind of mixed ventilation indirect cool tower system as claimed in claim 1 is characterized in that: described air inlet device bottom is provided with deflector.
4. a kind of mixed ventilation indirect cool tower system as claimed in claim 1, it is characterized in that: the cross section of described air inlet device and wind outlet unit is all rectangle.
5. based on the cooling means of claim l, 2,3 or 4 described mixed ventilation indirect cool tower systems, it is characterized in that, comprise the steps:
Under natural ventilating status, in radiator entered tower, when flowing through radiator and heating agent generation heat exchange and heating up, then hot-air was raised to tower top and discharges the external environment cold air by the tower bottom shutter; Lower than the outer cold air of tower, the inside and outside density contrast of tower provides air the continuous power that flows due to hot-air density;
In the situation that force ventilation auxiliary unit blower fan is opened, understand some by air inlet device through the hot-air of radiator, accelerate through blower fan, upward enter the tower cylinder along inner wall of tower by the wind outlet unit rectification is backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110210795 CN102401581B (en) | 2011-07-27 | 2011-07-27 | Mixed ventilation indirect cooling tower system and cooling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110210795 CN102401581B (en) | 2011-07-27 | 2011-07-27 | Mixed ventilation indirect cooling tower system and cooling method thereof |
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| CN102401581A CN102401581A (en) | 2012-04-04 |
| CN102401581B true CN102401581B (en) | 2013-05-08 |
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| CN102183156A (en) * | 2011-03-30 | 2011-09-14 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Parallel arranged indirect air-cooling systems of thermal power plant |
| CN103047898A (en) * | 2013-01-29 | 2013-04-17 | 哈尔滨宇神科技有限公司 | Air inlet guide method for mechanical ventilation water tower |
| CN103697748B (en) * | 2013-12-30 | 2015-12-09 | 清华大学 | A kind of clammy tower with environmental wind guiding device |
| CN103712475B (en) * | 2013-12-30 | 2015-09-30 | 清华大学 | A kind of Air-Cooling Island platform with environmental wind guiding device |
| CN104713386B (en) * | 2015-03-31 | 2016-06-15 | 山东大学 | A kind of double-deck cooling tower indirectly |
| CN105716441A (en) * | 2015-12-10 | 2016-06-29 | 中国电力工程顾问集团西北电力设计院有限公司 | Natural ventilation air-cooling tower with vertically-arranged radiator and adjustable effective draft force |
| CN105547004A (en) * | 2016-01-25 | 2016-05-04 | 北京嘉普元丰科技发展有限公司 | Mechanical assisted natural ventilation cooling tower |
| CN108413782B (en) * | 2016-10-31 | 2019-06-25 | 安徽马钢输送设备制造有限公司 | A kind of processing method of blast furnace evaporative air-cooling system board dirt |
| CN112344762B (en) * | 2020-10-30 | 2023-07-21 | 华电重工股份有限公司 | Indirect cooling tower and indirect air cooling system |
| CN112444141B (en) * | 2020-11-25 | 2022-03-08 | 东南大学 | Photo-thermal auxiliary indirect air cooling tower efficiency enhancement and anti-freezing integrated device and operation method |
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| EP0155340A2 (en) * | 1984-03-02 | 1985-09-25 | Hamon-Sobelco S.A. | Method and installation for evacuating exhaust gases from fossil fuels, preferably flue gas, especially after passing through a wet scrubber, using the exhaust air flow from a cooling plant, especially from a cooling tower |
| CN2048175U (en) * | 1988-11-12 | 1989-11-22 | 国家机械工业委员会第四设计研究院 | Energy saving cooling tower of glass fibre reinforced plastics |
| CN2062033U (en) * | 1990-03-21 | 1990-09-12 | 常州市溧阳县纺织空调设备厂 | Rectangular metal shell combined cooling tower |
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| CN101061366A (en) * | 2004-09-17 | 2007-10-24 | Spx冷却技术公司 | Heating tower apparatus and method with wind direction adaptation |
| CN201548083U (en) * | 2009-07-22 | 2010-08-11 | 北京布鲁斯盖环保科技发展有限公司 | Mechanical-draft indirect air cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3903212A (en) * | 1973-07-10 | 1975-09-02 | Cottrell Res Inc | Fan-assisted cooling tower and method of operation |
| GB1467563A (en) * | 1974-02-08 | 1977-03-16 | Hamon Sobelco Sa | Installation for contacting a liquid and a gas |
| EP0155340A2 (en) * | 1984-03-02 | 1985-09-25 | Hamon-Sobelco S.A. | Method and installation for evacuating exhaust gases from fossil fuels, preferably flue gas, especially after passing through a wet scrubber, using the exhaust air flow from a cooling plant, especially from a cooling tower |
| CN2048175U (en) * | 1988-11-12 | 1989-11-22 | 国家机械工业委员会第四设计研究院 | Energy saving cooling tower of glass fibre reinforced plastics |
| CN2062033U (en) * | 1990-03-21 | 1990-09-12 | 常州市溧阳县纺织空调设备厂 | Rectangular metal shell combined cooling tower |
| CN2141884Y (en) * | 1992-11-10 | 1993-09-08 | 宜兴市南新环保器材厂 | Auxiliary air type cooling tower |
| CN101061366A (en) * | 2004-09-17 | 2007-10-24 | Spx冷却技术公司 | Heating tower apparatus and method with wind direction adaptation |
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| CN102401581A (en) | 2012-04-04 |
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Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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Address after: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |