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Method for eliminating heat exchanging corner and air condenser thereof

A technology of air condenser and dead angle, which is applied in the method and air condenser to eliminate the dead angle of heat exchange, and can solve the problem of not effectively improving the heat exchange capacity and efficiency of the dead angle of the heat exchange tube, increasing investment cost and operating cost, and affecting the environment and other issues, to achieve the effect of reducing investment costs, reducing operating costs, and increasing air flow

Inactive Publication Date: 2009-11-25
HUADIAN HEAVY IND CO LTD
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  • Summary
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Problems solved by technology

Although the overall heat transfer capacity of these two methods has been improved, they still cannot effectively improve the heat transfer capacity and efficiency at the dead corner of the heat exchange tube, and also increase the investment cost and operating cost. The second method is due to the number of fans And the power increases, the speed increases, the noise is louder during operation, and the environment is affected

Method used

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  • Method for eliminating heat exchanging corner and air condenser thereof
  • Method for eliminating heat exchanging corner and air condenser thereof
  • Method for eliminating heat exchanging corner and air condenser thereof

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Embodiment Construction

[0016] A method for eliminating heat exchange dead ends and an air condenser of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for any limitation of the present invention.

[0017] Example. The existing air condenser principle such as figure 2 as shown, figure 2 The direction of the arrow in indicates the direction of wind flow. from figure 2 It can be seen that there is a heat exchange dead angle 8 at the bottom of the heat exchange tube 2 . The method for eliminating the heat exchange dead angle of the present invention, such as figure 1 as shown, figure 1 The direction of the arrow in indicates the direction of wind flow. Depend on figure 1 It can be seen that because a group of guide plates 5 are set at the air outlet of the axial flow fan 4, the wind direction changes after the wind meets the guide plates 5, and the guide angle of the guide plates is 80-...

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Abstract

The present invention discloses a method for eliminating the heat exchanging corner and an air condenser thereof. According to the method, the air outlet of an axial flow fan is provided with one group of guiding plate for changing the air direction partially and flowing to the heat exchanging corner. The air condenser manufactured according to the method of the invention comprises a steam distributing pipe (1) which is connected with a condensation water tank (3) through two groups of heat exchanging pipes (2). The axial flow fan (4) which is equipped with a fan cover plate (5) is provided below the heat exchanging pipe. One group of guiding plates (6) is provided on the fan cover plate, wherein the guiding direction of the guiding plate is oriented to the heat exchanging corner (8) at the bottom of the heat exchanging pipe. According to the invention, the air flow and the heat exchanging efficiency at the bottom corner of the heat exchanging pipe can be increased with lower cost and simple method at the state that the noise is not increased.

Description

technical field [0001] The invention relates to an air condenser, in particular to a method for eliminating heat exchange dead ends and an air condenser. Background technique [0002] At present, large direct air condenser groups in thermal power plants include multiple direct air condenser units, and each direct air condenser unit has basically the same structure. The steam discharged from the steam turbine is distributed to multiple steam distribution pipes through pipes, and the bottom of each steam distribution pipe is connected to the condensate tank through two sets of symmetrically inclined heat exchange pipes, and the structure is similar to an A-type. One or more axial flow fans are arranged below the heat exchange tubes to form an axial flow fan group. The wind from the axial flow fans is directly blown to the heat exchange tubes and steam distribution pipes to take away the heat. The steam in the boiler is cooled, and the cooled condensed water is discharged thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28B11/00F28B1/06
Inventor 刘学闫平董益成肖东玉吕继祖吕道华
Owner HUADIAN HEAVY IND CO LTD
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