CN101074677A - Hydraulically-driven fan for cooling tower - Google Patents

Hydraulically-driven fan for cooling tower Download PDF

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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
Application number
CNA2007100180875A
Other languages
Chinese (zh)
Inventor
李大应
金先培
Original Assignee
金先培
李大应
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 金先培, 李大应 filed Critical 金先培
Priority to CNA2007100180875A priority Critical patent/CN101074677A/en
Publication of CN101074677A publication Critical patent/CN101074677A/en

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    • Y02E10/223

Abstract

The invention is a cooling tower hydrodynamic fan. It is made of a vane wheel and a water turbine, the output axis of the water turbine is connected with the revolution axis of the vane wheel. This water turbine is a reaction-type wheel, including a tail water pipe 1, on top of which it is mounted a seating ring 2 with picket vanes 3 in the middle, volutes 4 & 8 around periphery and a cover plate 5 on the upper head plate. In the center of the cover plate 5 there is a backbone 6 inserting the center of seating ring 2 vertically with pillow. The runner 7 is loaded on the lower end of backbone 6. The utilization ratio of hydroenergy can be increased from 80% to 90%, higher than impulse wheel because of reaction-type structure. What is more is that its two-way symmetric inlet distribution can make the runner stressed homogeneously and decrease the vibration of water turbine , accordingly can decrease vibration and noise to the lowest level when running .

Description

Hydraulically-driven fan for cooling tower

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)

1, a kind of hydraulically-driven fan for cooling tower, 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, it is characterized in that: described water turbine is a reaction turbine, it comprises a draft tube (1), connect firmly a seat ring (2) in the draft tube upper end, in seat ring, be provided with water guide blade (3), be fixedly connected with spiral case (4) in the seat ring periphery, be provided with cover plate (5) in the seat ring upper-end surface, a vertical main shaft (6) that inserts the seat ring center is equipped with by bearing in center at cover plate (5), and the runner (7) of a reaction turbine is housed in main shaft (6) lower end.
2, hydraulically-driven fan for cooling tower according to claim 1, it is characterized in that: connect firmly two spiral cases (4,8) in described seat ring periphery, these two spiral cases are axle and axisymmetric reversed arrangement with seat ring (2) axis, are the bi-directional symmetrical inlet distribution at center thereby form with seat ring (2).
3, hydraulically-driven fan for cooling tower according to claim 1 and 2 is characterized in that: be associated with a gear speed regulator in described main shaft (6) upper end.
CNA2007100180875A 2007-06-19 2007-06-19 Hydraulically-driven fan for cooling tower CN101074677A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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