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Tower body pumping adjustment device and indirect air cooling system

A force adjustment and tower body technology, which is applied in the field of tower body draft adjustment device and indirect air cooling system, can solve the problems of rising temperature in the tower, inability to adjust the cooling tower draft, and increase the number of warming sections, so as to improve the operation safety , Improving unit economy and optimizing the effect of control schemes

Active Publication Date: 2016-09-14
BEIJING LONGYUAN COOLING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it often happens that the antifreeze warming up section has not yet ended, and other operating sections also have low temperature and need emergency warming up operations, resulting in an increase in the number of warming up sections, and the temperature in the tower continues to rise
[0006] To sum up, the indirect air cooling system in the prior art cannot adjust the draft of the cooling tower, so that when the temperature is low, the smaller the shutter opening, the greater the wind speed per unit area of ​​the cooler, and the greater the antifreeze pressure. With the anti-freezing logic of protecting equipment safety considerations, the above trend will intensify, and eventually the unit will inevitably run at high back pressure, and even shut down.

Method used

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  • Tower body pumping adjustment device and indirect air cooling system
  • Tower body pumping adjustment device and indirect air cooling system
  • Tower body pumping adjustment device and indirect air cooling system

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Effect test

Embodiment 1

[0029] Such as figure 1 , 2 As shown, the tower draft regulating device of this embodiment includes: a ventilation hole provided on the widened sealing platform 2 of the indirect air cooling tower and a sealing switch mechanism provided at the ventilation hole.

[0030] The sealing switch mechanism includes: a cover plate 51 arranged on the widening sealing platform 2 and a sealing bead 52 arranged at the contact position between the widening sealing platform 2 and the cover plate 51, and the material of the sealing bead 52 is rubber.

[0031] The ventilation hole is a square hole, and the ventilation hole is a square hole with a side length of 700 mm to 900 mm. The size of the ventilation hole in this embodiment is 800 mm × 800 mm. The number of the ventilation holes on each sector Not more than five, and each ventilation hole is evenly arranged along the perimeter of the indirect air cooling tower. In addition, the position of the opening of the ventilation hole should avo...

Embodiment 2

[0039] Such as figure 1 , 3As shown, compared with Embodiment 1, the difference between this embodiment and the specific structure of the sealing switch mechanism 5 is that the sealing switch mechanism in this embodiment includes: a chute 55 arranged on the widening sealing platform, a chute located on the widening sealing platform, The limit buckle (not marked in the figure) on the platform 2 and the windshield 53 located in the chute 55, the windshield 53 is provided with a pulley 54, the windshield 53 cooperates with the chute 55 by the pulley 54 and Can slide along the chute 55, one end of the windshield 53 is provided with a sliding bayonet 56, the sliding bayonet 56 can cooperate with the limit buckle to limit the position of the windshield 53, the outside of the windshield 53 is provided with Push and pull the handle 57, and the contact between the chute 55 and the windshield 53 is lined with a sealing bead 58.

[0040] Since the widening and sealing platform 2 has a ...

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Abstract

The invention relates to the technical field of indirect air cooling, and particularly discloses a tower body draft adjusting device and an indirect air cooling system. The tower body draft adjusting device comprises a vent hole which is formed in a widened sealing platform of an indirect air cooling tower, and a hermetic switching mechanism arranged at the vent hole, wherein the indirect air cooling system comprises the tower body draft adjusting device. A part of the ventilation amount of an indirect air cooling tower cooler is branched, so that the tower body draft is reduced effectively, freezing harm caused by excessive temperature lowering of the cooler is relieved, the safe production efficiency is increased, and the performance of the air cooling system is optimized.

Description

technical field [0001] The invention relates to the technical field of indirect air cooling, in particular to a tower body draft adjustment device and an indirect air cooling system. Background technique [0002] At present, the indirect air cooling system has been widely used in thermal power plants in the northern region. Since the operation of the indirect air cooling system, the problem of antifreeze in winter has always restricted the safety and stability of the indirect air cooling system. Moreover, the probability of freezing accidents remains high. While emphasizing the anti-freezing strategy in the later stage of operation, it is necessary to further deepen innovation in combination with the structural form of the cooling tower. [0003] Natural ventilation indirect cooling towers generally use a small number of segments in winter conditions, and the number of segments of natural ventilation indirect cooling towers is also small for cost considerations, which bring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B11/00
Inventor 张莱新李海杨晓军黄忠李丽梅张来赵慧文丁利陈泰来
Owner BEIJING LONGYUAN COOLING TECH
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