Hydraulic propeller of pressure-regulating speed-changing draught fan used for energy-saving cooling tower

A variable-speed fan and cooling tower technology, applied in hydropower, machines/engines, mechanical equipment, etc., can solve the problems of low fan speed, poor thermal performance of cooling towers, freezing of cooling towers, etc., to improve efficiency and service life, Effect of improving thermal performance and avoiding icing accidents

Inactive Publication Date: 2008-02-27
王志成
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AI Technical Summary

Problems solved by technology

The proportion of its conversion into useful work is relatively small, resulting in waste of energy
[0003] In order to save energy, the input of electric energy can be saved, and only water energy is used. However, due to the limited amount of water energy, in summer, the excess water energy cannot meet the requirements of the fan for its inlet water pressure, because the inlet water pressure is low and the fan speed is low. , poor thermal performance of the cooling tower
In winter, if the fan is still running at full capacity like in summer, a new problem will appear in the cooling tower. Due to the excessive air volume, the water temperature of the cooling tower will drop too much, which will become the main reason for the freezing of the cooling tower.
It also reduces the service life of the hydraulic propeller

Method used

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  • Hydraulic propeller of pressure-regulating speed-changing draught fan used for energy-saving cooling tower

Examples

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Embodiment

[0016] A pressure-regulating variable-speed fan hydraulic propeller for an energy-saving cooling tower, comprising: the output shaft 9 of the turbine is equipped with fan blades 8, the output shaft 9 is installed in the casing 6 of the turbine through a bearing 7, and the casing of the turbine The body 6 is provided with a water inlet pipe 1 and a water outlet pipe 2, and the water inlet pipe 1 is provided with a booster pipe 3 and a decompression water pipe 4.

[0017] The decompression water pipe 4 is provided with a decompression valve 401 or the decompression water pipe 4 is connected to the decompression valve 401 .

[0018] The booster pipe 3 communicates with the booster water pump 10 through a valve 11 .

[0019] The booster water pump extracts a part of the water at the tail of the turbine, that is, behind the water outlet pipe. The decompression water pipe is connected to the water distribution system of the cooling tower through the decompression valve 401. Therefo...

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Abstract

The hydraulic propeller with voltage adjustable and speed variable fan for energy saving cooling tower includes one turbine with fan blades mounted on its output shaft, water inlet pipe and water outlet pipe, and features the water inlet pipe provided with pressure increasing pipe and pressure reducing pipe. Compared with traditional technology, the present invention has the advantages of obvious energy saving effect, greatly reduced noise, capacity of raising the thermal efficiency of the cooling tower, and capacity of prolonging the service life of the equipment in the cooling tower.

Description

technical field [0001] The invention relates to a hydraulic propulsion device for a pressure-regulating variable-speed fan used in an energy-saving cooling tower. Background technique [0002] There are two types of energy directly input into the mechanical ventilation cooling tower, one is electrical energy: input by the motor and reducer, and the other is water energy, which is input by high-pressure water through the water pipe entering the tower. In engineering practice, the two input energy margins are relatively large. It is converted into a small proportion of useful work, resulting in energy waste. [0003] In order to save energy, the input of electric energy can be saved, and only water energy is used. However, due to the limited amount of water energy, in summer, the excess water energy cannot meet the requirements of the fan for its inlet water pressure, because the inlet water pressure is low and the fan speed is low. , The thermal performance of the cooling t...

Claims

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Application Information

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IPC IPC(8): F03B13/00F03B15/00
CPCY02E10/226Y02E10/20
Inventor 王志成周长西
Owner 王志成
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