Method for testing property of cooling tower

A technology of cooling towers and characteristic equations, which is applied to the testing of machines/structural components, measuring devices, instruments, etc., and can solve problems such as narrow applicable ranges of expressions and large errors

Active Publication Date: 2012-07-04
SHANGHAI KING SUN COOLING EQUIP
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  • Abstract
  • Description
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Problems solved by technology

However, in the actual operation and characteristic test of the cooling tower, it is found that the above expressions have the defects of narrow appl

Method used

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  • Method for testing property of cooling tower
  • Method for testing property of cooling tower
  • Method for testing property of cooling tower

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Embodiment Construction

[0189] The embodiments of the present invention are described in detail below: this embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the invention is not limited to the following embodiments .

[0190] The test steps include:

[0191] I. With the existing cooling characteristic equation N'=Aλ m Based on the analysis and citation, the model of the new characteristic equation is preliminarily established as N 0 =Aλ m q o t 1 p (Δt / (t2-τ)) a ;

[0192] II. Selected test items: the total heat dissipation coefficient Ka of the water spray filler; the inlet water temperature t1; the atmospheric temperature (dry bulb and wet bulb); the water spray density; the influence of the cooling tower operating range on the cooling characteristics, that is, the environmental efficiency coefficient η=Δt / (t2-τ);

[0193] III. Selec...

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Abstract

The invention discloses a method for testing the property of a cooling tower. The method comprises the following testing steps of: I, based on a cooling property equation N'=A lambda<m>, establishing a new property equation mode being N<0>=A lambda<m>q<o>tl(delta t/(t2-tau))a; II, selecting testing items, including heat radiation and disperse medium total coefficient of packing, inlet water temperature, atmospheric temperature, packing density and influence of an operation interval of the cooling tower to the cooling property; III, selecting an orthogonal test table L9(3<4>), and respectively testing steam-water ratio lambda, packing density q, tower-inlet water temperature t1 and tower-inlet wet bulb temperature tau1; and IV, analyzing to obtain the primary and secondary sequence of factors influencing the cooling property, and working out a new cooling property equation by adopting multiple regression. The method disclosed by the invention has the credibility being more than 95% weight respect to test of the property of the cooling tower, is low in error and greatly improved in design precision, and provides a more correct instructive method for designing the cooling tower reasonably.

Description

technical field [0001] The invention belongs to the technical field of refrigerator testing, and in particular relates to a method for testing the characteristics of a cooling tower by adopting multiple regression analysis and an orthogonal design method. Background technique [0002] With the development of industrial production and the continuous acceleration of urbanization of human society, the demand for water has increased greatly, causing an increasing shortage of water resources, especially in industries such as electric power, steel, petrochemicals, and textiles. For example, the cooling water volume of a million-kilowatt power station is about 35m 3 / s, crude oil water 20 ~ 40m 3 / ton of oil, ethylene cooling water about 500 ~ 1200m 3 / ton of ethylene, synthetic ammonia water is 600 ~ 1900m 3 / ton of ammonia, the annual water consumption of a petrochemical company reaches 1.5 billion meters 3 ;The amount of cooling circulating water in the world is huge, and...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 李麟添
Owner SHANGHAI KING SUN COOLING EQUIP
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