Rectangular section Z-shaped rectifier bent pipe

A rectangular section and elbow technology, which is applied in the field of rectangular section Z-shaped rectifier elbows, can solve problems such as affecting indoor thermal comfort, affecting indoor airflow distribution, and failing to meet design requirements for actual indoor comfort.

Inactive Publication Date: 2012-02-01
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the above reasons, after the fluid flows through the rectangular cross-section Z-shaped elbow, the fluid undergoes strong momentum exchange through two changes of direction in the tube, such as figure 1 As shown, this will result in an uneven distribution of the flow velocity of the fluid shown in the figure
In the field of HVAC, if this part of the fluid is directly sent into the room, it will affect the indoor air distribution, so that the actual indoor comfort cannot meet the design requirements, thus affecting the indoor thermal comfort.

Method used

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  • Rectangular section Z-shaped rectifier bent pipe
  • Rectangular section Z-shaped rectifier bent pipe
  • Rectangular section Z-shaped rectifier bent pipe

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specific Embodiment

[0038] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

[0039] Following the above-mentioned technical scheme, taking the optimization process of central air-conditioning air duct connecting rectangular section Z-shaped rectifying elbow as an example, first determine the dimensions of each part of the rectangular section Z-shaped rectifying elbow pipe, in which the size of the inlet section 1 is 300mm×300mm, and the size of the outlet section 7 The size is 300mm×300mm, the camber is 1.5, the length of the rectification section 10 is 300mm, the length of the rectification vane in the rectification section is 100mm, and the length of the guide vane is 300mm, then list the discrete format of t...

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Abstract

The invention discloses a rectangular section Z-shaped rectifier bent pipe. The rectangular section Z-shaped rectifier bent pipe comprises an inlet section, a Z-shaped deflecting section and an outlet section, wherein one end of the inlet section is connected with one end of the Z-shaped deflecting section; the other end of the Z-shaped deflecting section is connected with a buffer section; a rectifier section connected with the outlet section is arranged on one side of the buffer section; rectifier vanes are arranged at the inner upper end of the rectifier section; and each rectifier vane isprovided with a guide vane which divides the rectifier section into five fluid channels with equal flow. Speed stratification formed by the fluid flowing through the Z-shaped rectangular bent pipe iseliminated through the unique design of the rectangular section Z-shaped rectifier bent pipe, so that the aim of rectifying the fluid flowing through the Z-shaped rectangular bent pipe is fulfilled finally.

Description

technical field [0001] The invention relates to a partial component in a ventilation and air-conditioning system, in particular to a Z-shaped rectifying elbow with a rectangular section. Background technique [0002] Rectangular cross-section Z-shaped elbow is an extremely common connecting pipe fitting for changing the flow direction of fluid in HVAC power fluid machinery. In the Z-shaped elbow, because the fluid has undergone two turns, the flow velocity distribution of the first change of direction in the elbow follows the single The flow velocity distributions of the two 90° elbows are the same: in the first change of direction, the center of fluid turbulence shifts to the inner side of the elbow, and reaches the maximum velocity at the inner side of the elbow near the wall surface; after the first elbow to the second In the distance before the bend, the center of turbulence is near the wall on the outside of the bend; the flow velocity distribution in the second bend an...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F15D1/04F24F13/02
Inventor李安桂邱国志高然雷文君郝鑫鹏
OwnerXI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY