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Method and system for designing ultra-large reverse-flow natural ventilation wet cooling tower

A natural ventilation and wet cooling technology, which is applied in the direction of water shower coolers, calculations, heat exchanger types, etc., can solve problems such as small and large cooling towers, and achieve safety issues, operational stability and safety The effect of reliable guarantee and wide applicability

Inactive Publication Date: 2012-11-21
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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Problems solved by technology

[0016] Based on this, it is necessary to provide a super-large counterflow natural ventilation wet cooling tower design for the above-mentioned traditional method of calculating the resistance coefficient of the air inlet area has certain limitations, which leads to the problem that the cooling tower selected for calculation is too large or too small method and system

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  • Method and system for designing ultra-large reverse-flow natural ventilation wet cooling tower

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[0031] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] see figure 1 As shown, a design method of a super-large counterflow natural draft wet cooling tower includes the following steps:

[0033] Step S101, obtain the relative height of the air inlet (denoted as ε) and the resistance coefficient of the water spray filling (denoted as ξ f ), and then enter step S102.

[0034] Step S102, according to the relative height of the air inlet (ε), the resistance coefficient of the water spray filler (ξ f ) and use the following formula to calculate the resistance coefficient of the air inlet area (denoted as ξ a ):

[0035] ξ a = ( 76.65 - 261.33 ε + 264.85 ε 2 ) ...

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Abstract

The invention provides a method and a system for designing an ultra-large reverse-flow natural ventilation wet cooling tower. The method comprises the following steps of: acquiring the relative height of an air inlet and a resistance coefficient Xif of water drenching packing; calculating a resistance coefficient Xia of an air inlet area according to the relative height Epsilon of an air inlet and the resistance coefficient Xif of the water drenching packing by adopting the following formula shown in the specification; performing the final performance calculation of the cooling tower according to the resistance coefficient Xia of the air inlet area to obtain operating performance data of the cooling tower; and designing the cooling tower according to the operating performance data. According to the method and the system provided by the invention, the actual operating state of the cooling tower can be effectively mastered, thereby, a reliable guarantee is provided for the unit operating stability and safety, and the safety problem caused as the calculated and type-selected cooling tower is smaller and the problem that the initial investment is wasted caused as the calculated and type-selected cooling tower is bigger are effectively avoided, therefore, the method and the system for designing the ultra-large reverse-flow natural ventilation wet cooling tower are better in market application prospect.

Description

technical field [0001] The invention relates to a design method of a super-large counterflow natural ventilation wet cooling tower and a design system of a super large counterflow natural ventilation wet cooling tower. Background technique [0002] Counterflow natural ventilation wet cooling towers (hereinafter referred to as natural towers) are widely used in many sectors of the national economy, including electric power, petroleum, chemical industry, etc. exchange, so that the waste heat is transferred to the air and dissipated into the atmosphere. This type of cooling tower is figure 1 As shown, the ventilator usually adopts a hyperbola shape and is made of reinforced concrete. The bottom of the tower is an air inlet. , and then flow out from the outlet of the tower. [0003] The water spraying area of ​​the natural tower refers to the cross-sectional area of ​​the top of the "filling area" in the cooling tower. According to the size of the water spraying area, the coo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C1/02G06F19/00
Inventor 罗必雄杨志龙国庆汤东升毛卫兵彭雪平乔旭斌匡俊李波朱嵩
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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