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Circulating cooling water low-temperature exhaust heat drying bed for large-scale power station

A technology of circulating cooling water and drying bed, which is applied in the direction of heating to dry solid materials, drying solid materials, drying, etc., can solve problems such as reducing drying costs

Inactive Publication Date: 2012-07-11
张咸民 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And reduce the cost of drying while achieving zero heat pollution to the environment

Method used

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  • Circulating cooling water low-temperature exhaust heat drying bed for large-scale power station
  • Circulating cooling water low-temperature exhaust heat drying bed for large-scale power station
  • Circulating cooling water low-temperature exhaust heat drying bed for large-scale power station

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Experimental program
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Effect test

Embodiment Construction

[0010] The specific working principle of the large-scale circulating cooling water low-temperature waste heat drying bed will be further explained below in conjunction with the accompanying drawings. The cooling residual hot water is divided into the feather tubes of the tube group 16 and the tube group 24 through the water inlet 23 respectively through the upper and lower two sets of tube-sheet headers 21, and dissipates heat into the bed through the feather fins during the flow. The material to be dried is sent into the hopper 5 by the feeding device. The material bed runs in the same direction as the residual hot water, and the material absorbs the heat emitted by the fins along the way. Crushing, it can stir and stir common materials and accelerate drying without leaving dead ends. It can be suspended when not in use, and the hopper 5 can be replaced according to the actual drying materials. The cold air enters the bed chamber in different directions from the inlet 29, and...

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Abstract

The invention relates to a circulating cooling water low-temperature exhaust heat drying bed for a large-scale power station, belonging to the technical field of auxiliary machines mated with a boiler. The circulating cooling water low-temperature exhaust heat drying bed is characterized in that discarded hot circulating cooling water low-temperature exhaust heat of the power station is applied to a large-scale drying device by using an annular self-unloading device. The cost of drying materials is saved, and the requirement of recycling circulating water by reducing the temperature of the circulating water can be achieved through a drying process. A drying device manufacturing enterprise is free of a development mode of depending on the introduction of foreign technologies and mutual imitation among enterprises, the manufacture of the drying device is promoted to trend to energy saving, environment protection, automatic control and upsizing, and the competitiveness is enhanced for seizing international and domestic markets. Meanwhile, efficient utilization of circulating water exhaust heat of the power station is enabled to be more practical, standardized and scaled. The significance is achieved for reducing power generation cost and increasing economic benefit and social benefit.

Description

1. Technical field [0001] The invention relates to a low-temperature residual heat drying bed for circulating cooling water of a large-scale power station, and belongs to the technical field of auxiliary equipment for boilers. 2. Background technology [0002] At present, the heat loss at the cold end of the power station is serious, and its loss exceeds the heat used by the steam turbine for work. Due to the non-stop work of the generator, the circulating water continuously discards the waste heat to the environment, which naturally causes energy waste and obvious thermal impact on the environment. According to relevant reports, in order to prevent the discharge temperature from violating the regulations, some foreign power plants do not hesitate to use the cooling tower to flow back to the sea after only one sitting. It can be seen that the heat rejection of circulating cooling water in power plants has become a difficult problem in the environmental protection of power c...

Claims

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Application Information

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IPC IPC(8): F26B3/24F26B23/10F26B25/04
CPCY02P70/10
Inventor 张咸民张伟杰
Owner 张咸民
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