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Rain area thermodynamic property simulating calculation method of overlarge wet type cooling tower

A technology of thermal characteristics and wet cooling, applied in computing, special data processing applications, instruments, etc., can solve problems such as waste of engineering costs and unreasonable selection of models, and achieve the effect of saving engineering costs and small errors

Active Publication Date: 2015-04-08
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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Problems solved by technology

It will make the selection of the cooling tower unreasonable during the construction design, resulting in waste of engineering costs, and a large deviation between the expected design conditions and the actual operating conditions

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  • Rain area thermodynamic property simulating calculation method of overlarge wet type cooling tower
  • Rain area thermodynamic property simulating calculation method of overlarge wet type cooling tower
  • Rain area thermodynamic property simulating calculation method of overlarge wet type cooling tower

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] figure 1 It is a structural schematic diagram of a counterflow natural draft wet cooling tower. Such as figure 1 As shown, the water spray 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 water spray area A, the cooling tower can be divided into:

[0026] Small tower A<4000m2

[0027] Medium-sized tower 4000m2≤A<7000m2

[0028] Large tower 7000m2≤A<12000m2

[0029] Super large tower A≥12000m2 (tower bottom diameter D>110m, air inlet height h>11m)

[0030] The heat dissipation of the natural draft counterflow cooling tower includes the water spray area (the area between the water distribution area and the filler in the figure), the fill area and the rain area (the pa...

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Abstract

The invention discloses a rain area thermodynamic property simulating calculation method of an overlarge wet type cooling tower, comprising the following the steps of: establishing a rain area simulating model of the cooling tower, wherein the diameter of the bottom of the model is more than 110 m and the height of an air inlet is more than 11 m; calculating an equivalent diameter of raindrops of the rain area simulating model under different pre-set working conditions; and carrying out movement simulation according to the equivalent diameter of the raindrops to obtain a thermodynamic property mathematical model of the rain area simulating model. With the adoption of the invention, the overlarge wet type cooling towers with different scales can be subjected to simulation calculation under different operation working conditions to obtain the thermodynamic property of an overlarge rain area.

Description

technical field [0001] The invention relates to a simulation technology for the design of a cooling tower, in particular to a simulation calculation method for the thermal characteristic of a super-large wet cooling tower in the rain zone. Background technique [0002] Counterflow natural ventilation wet cooling tower (hereinafter referred to as natural tower) is widely used in many sectors of the national economy, such as electric power, petroleum, chemical industry, etc., and its function is to directly contact the cooling water with waste heat in the tower and air Heat exchange so that waste heat is transferred to the air and dissipated into the atmosphere. This type of cooling tower ventilator usually adopts a hyperbola shape and is made of reinforced concrete. The bottom of the tower is an air inlet. The air enters the tower from the air inlet, passes through the rain area under the filler, and flows in the opposite direction to the hot water. After passing through the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 龙国庆杨志毛卫兵汤东升罗必雄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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