CN101074677A - Hydraulically-driven fan for cooling tower - Google Patents
Hydraulically-driven fan for cooling tower Download PDFInfo
- Publication number
- CN101074677A CN101074677A CNA2007100180875A CN200710018087A CN101074677A CN 101074677 A CN101074677 A CN 101074677A CN A2007100180875 A CNA2007100180875 A CN A2007100180875A CN 200710018087 A CN200710018087 A CN 200710018087A CN 101074677 A CN101074677 A CN 101074677A
- Authority
- CN
- China
- Prior art keywords
- seat ring
- turbine
- water turbine
- cooling tower
- water
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 15
- 239000011901 water Substances 0.000 claims abstract description 40
- 238000006243 chemical reactions Methods 0.000 claims description 14
- 238000006757 chemical reactions by type Methods 0.000 abstract 2
- 241000579977 Volutidae Species 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 4
- 238000000034 methods Methods 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 239000007921 sprays Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reactions Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000003638 reducing agents Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- Y02E10/223—
Abstract
Description
Technical field
The present invention relates to a kind of used for cooling tower blower fan, relate in particular to a kind of hydraulically-driven fan for cooling tower.
Background technique
In prior art, the cooling tower of large-scale refrigeration air-conditioner and industrial hot water generally is to deliver in the tower with the hot water that water pump will need to cool off, and then with drencher spray down, makes spray hot water and air heat exchange and obtain cooling off down.In order to quicken the heat exchange of hot water and air, often in tower, be provided with blower fan.Existing blower fan generally is made of fan blade, motor and retarder, and motor drives fan blade by retarder and rotates.Because motor speed is higher, add the mechanical transmission of upper reducer, noise is big when making its operation, and the tower body vibration is arranged, and simultaneously, the electric energy that motor consumption is a large amount of is unfavorable for energy-conservation and environmental protection.In order to address this problem, Chinese patent 98113099 has been announced a kind of " used for cooling tower water wheel type blower fan ", and this patent drives fan blade and rotates, thereby saved electric energy with the water turbine source that is used as power.This water turbine has adopted an impulse turbine, impulse turbine requires the flow of current little, the head height, but the head of cooling tower is low, cause the water energy conversion efficiency of impulse turbine lower, in this case, the power that often needs to increase water pump increases flow dynamic, the result is and increased electric energy, be difficult to reach 100% energy-conservation.Have, this impulse turbine is single water inlet structure again, and current distribute and offset to one side, and are easy to generate vibration when making hydraulic turbine operation, fails to resolve the problem that noise is big and tower body vibrates.
Summary of the invention
The objective of the invention is at the low problem of energy conversion efficiency in the prior art, provide a kind of with the be used as power hydraulically-driven fan for cooling tower in source of reaction turbine, thereby improve cooling tower water energy utilized rate, reach 100% energy-conservation, improve the situation that current distribute and to offset to one side on the other hand, noise and vibration when reducing to move.
For achieving the above object, technological scheme of the present invention is as follows:
It is made up of a fan blade and a water turbine, the output shaft of described water turbine and the rotating shaft of fan blade link, its special way is: described water turbine is a reaction turbine, it comprises a draft tube, connect firmly a seat ring in the draft tube upper end, in seat ring, be provided with water guide blade, be fixedly connected with spiral case in the seat ring periphery, be provided with cover plate in the seat ring upper-end surface, a vertical main shaft that inserts the seat ring center is equipped with by bearing in center at cover plate, and the runner of a reaction turbine is housed in the main shaft lower end.
Further improved technical scheme of the present invention is as follows:
Connect firmly two spiral cases in described seat ring periphery, these two spiral cases serve as axle and the axisymmetric reversed arrangement is the bi-directional symmetrical inlet distribution at center thereby form with the seat ring with the seat ring axis.
Be associated with a gear speed regulator in described main shaft upper end.
By technique scheme as can be seen, the present invention has adopted the power source of reaction turbine as fan blade, this reaction turbine utilizes the potential energy and the kinetic energy acting of current, its runner channel has pressure, sealing, full Zhou Jinshui, be suitable for the low situation of cooling tower head, so the water of this reaction turbine energy conversion ratio is than impact type height, after tested, it can water can utilization ratio bring up to more than 90% from 80%, can reach 100% energy-conservation.Moreover, the present invention has adopted double volute symmetric inlet structure, and it can make the current that enter water turbine form with the seat ring is the bi-directional symmetrical inlet distribution at center, thereby makes runner stressed all even, can reduce the vibration of water turbine greatly, tower body vibration and noise when making operation all drop to minimum.
Description of drawings
One of Fig. 1, overall structure of the present invention (the A-A section of Fig. 2) cross-sectional schematic.
The plan structure of Fig. 2, Fig. 1 (the B-B cross section of Fig. 1) schematic representation.
Two of Fig. 3, overall structure of the present invention (the A-A section of Fig. 4) cross-sectional schematic.
The plan structure of Fig. 4, Fig. 3 (the B-B cross section of Fig. 3) schematic representation.
Embodiment
Embodiment 1
This device comprises a fan blade and a water turbine, the output shaft of water turbine and the rotating shaft of fan blade link, described water turbine is a reaction turbine, it comprises a draft tube 1, connect firmly a seat ring 2 in draft tube 1 upper end, in seat ring, be provided with water guide blade 3, be fixedly connected with a spiral case 4 in seat ring 2 peripheries, be provided with cover plate 5 in seat ring 2 upper-end surfaces, a vertical main shaft 6 that inserts the seat ring center is equipped with by bearing in center at cover plate 5, the runner 7 of a reaction turbine is housed in the main shaft lower end, runner 7 can be according to the flow of water, head and required turbine efficiency and rotating speed, axial flow hydraulic turbine in existing reaction turbine class, choose any one kind of them in the runner of Francis turbine and inclined-jet turbine, what this example adopted is a kind of runner of Francis turbine.
Working procedure of the present invention is: when current when spiral case 4 enters water turbine, current are along with the guiding of spiral case arrives seat ring 2, pass through the pilot flow of water guide blade 3 in the seat ring again to runner 7, and promotion runner 7 rotates, arrange to draft tube 1 from the water that runner 7 comes out, discharge from draft tube 1 at last, main shaft 6 rotates with runner 7, rotates thereby drive fan blade.
Embodiment 2
Referring to Fig. 3,4, this example is to have added a spiral case 8 on embodiment 1 basis, that is to say, connect firmly two spiral cases 4,8 in seat ring 2 peripheries, these two spiral cases with seat ring 2 axis serve as the axle and the axisymmetric reversed arrangement, thereby forming with the seat ring is the bi-directional symmetrical inlet distribution at center, promptly as shown in Figure 4.This bi-directional symmetrical inlet distribution can make runner 7, and stressed evenly stability of rotation reduces the vibration of water turbine greatly, thereby vibration and noise when making the tower body operation drop to minimum.
In addition, when the rotating speed of water turbine output can be with the rated speed coupling of fan blade, directly drive the fan blade rotation with the main shaft 6 of this water turbine, as shown in Figure 1; When both rotating speeds can not mate, can adopt the gear speed regulator to regulate, as shown in Figure 3, shown in the figure is a primary gear speed reducing device, it is made of the driving gear 9 and driven gear 10 engagements that are installed on the main shaft 6, wherein the axle of driven gear links as output shaft and fan blade, also can adopt coaxial-type governor structure form, makes that runner shaft and output shaft are coaxial.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100180875A CN101074677A (en) | 2007-06-19 | 2007-06-19 | Hydraulically-driven fan for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100180875A CN101074677A (en) | 2007-06-19 | 2007-06-19 | Hydraulically-driven fan for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101074677A true CN101074677A (en) | 2007-11-21 |
Family
ID=38975903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100180875A CN101074677A (en) | 2007-06-19 | 2007-06-19 | Hydraulically-driven fan for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101074677A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009629A1 (en) * | 2008-07-25 | 2010-01-28 | 南京星飞冷却设备有限公司 | A hydrodynamic cooling fan for a cooling tower with high efficiency and saving-energy |
| WO2010135988A1 (en) * | 2009-05-27 | 2010-12-02 | 南京星飞冷却设备有限公司 | Direct-connection low-speed small-scale mixed-flow hydroturbine seat ring applied in hydrodynamic energy-saving cooling tower |
| CN101363392B (en) * | 2008-09-16 | 2012-05-23 | 河南新飞纪元科技有限公司 | Pressure turgo impulse turbine special for blower fan of cooling tower |
| CN102606366A (en) * | 2012-04-20 | 2012-07-25 | 重庆堪文节能科技有限公司 | Special built-in cantilever type water turbine for cooling tower |
| CN103993915A (en) * | 2014-05-16 | 2014-08-20 | 西安交大赛尔机泵成套设备有限责任公司 | Large efficient full-work-condition energy recovery enclosed-impeller radial-inward-flow turbine all-in-one machine |
| CN106481575A (en) * | 2015-08-26 | 2017-03-08 | 怀化欧盛德合同能源管理有限公司 | One kind exempts from electric energy hydrodynamic draught fan |
-
2007
- 2007-06-19 CN CNA2007100180875A patent/CN101074677A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009629A1 (en) * | 2008-07-25 | 2010-01-28 | 南京星飞冷却设备有限公司 | A hydrodynamic cooling fan for a cooling tower with high efficiency and saving-energy |
| CN101363392B (en) * | 2008-09-16 | 2012-05-23 | 河南新飞纪元科技有限公司 | Pressure turgo impulse turbine special for blower fan of cooling tower |
| WO2010135988A1 (en) * | 2009-05-27 | 2010-12-02 | 南京星飞冷却设备有限公司 | Direct-connection low-speed small-scale mixed-flow hydroturbine seat ring applied in hydrodynamic energy-saving cooling tower |
| CN102606366A (en) * | 2012-04-20 | 2012-07-25 | 重庆堪文节能科技有限公司 | Special built-in cantilever type water turbine for cooling tower |
| CN103993915A (en) * | 2014-05-16 | 2014-08-20 | 西安交大赛尔机泵成套设备有限责任公司 | Large efficient full-work-condition energy recovery enclosed-impeller radial-inward-flow turbine all-in-one machine |
| CN106481575A (en) * | 2015-08-26 | 2017-03-08 | 怀化欧盛德合同能源管理有限公司 | One kind exempts from electric energy hydrodynamic draught fan |
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