Y-shaped symmetric coattail split rectifying tee joint for rectangular air pipe

A symmetrical, air duct technology, applied in the direction of pipes, pipeline layout, branch pipelines, etc., can solve problems such as affecting indoor comfort, inconsistency between indoor air distribution and design, and uneven fluid flow rate.

Inactive Publication Date: 2011-02-09
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The secondary flow plays an important role in the redistribution of the axial velocity of the pants tee. The redistribution process consumes the energy of the primary flow and increases the local resistance loss of the Y-shaped symmetrical dovetail tee.
[0004] Due to the above reasons, after the fluid flows through the Y-shaped symmetrical dovetail diverter tee and diverted, the fluid will be stratified due to the diffusion and contraction effects, such as figure 1 shown, will result in non-uniform fluid flow
In the field of HVAC, on the one hand, there will be vibrations inside the pipes to generate noise; on the other hand, if this part of the fluid is directly sent into the room, it will cause the indoor air distribution to go against the design and affect indoor comfort

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  • Y-shaped symmetric coattail split rectifying tee joint for rectangular air pipe
  • Y-shaped symmetric coattail split rectifying tee joint for rectangular air pipe
  • Y-shaped symmetric coattail split rectifying tee joint for rectangular air pipe

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specific Embodiment

[0040] 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.

[0041] According to the above technical scheme, taking the optimization process of central air-conditioning air duct connecting rectangular air duct Y-shaped symmetrical dovetail diversion tee as an example, first determine the dimensions of each part of the rectangular air duct Y-shaped symmetrical dovetail diversion tee, among which the size of the inlet section 1 is 600mm×300mm, the size of the outlet section 6 is 300mm×300mm, the curvature of the curved diverter section 2 is 1.5, the length of the rectification section 10 is 300mm, the length of the rectification blades in the rectification section is 100mm, and the length of the...

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Abstract

The invention discloses a Y-shaped symmetric coattail split rectifying tee joint for a rectangular air pipe. The tee joint comprises an inlet section and two outlet sections, wherein the two outlet sections are symmetrically arranged at two sides above the inlet section to form a Y-shaped symmetric structure; a same curve split-flow section is symmetrically connected above the inlet section, and is symmetrically connected with a same buffer section; rectifying sections connected with the outlet sections are symmetrically arranged at one side of the buffer section; rectifying blades are arranged on the upper end in the rectifying section; and guide vanes are arranged on each rectifying blade to divide the inside of the rectifying section into five fluid channels with the same flow rate. The unique design of the Y-shaped symmetric coattail split rectifying tee joint for the rectangular air pipe eliminates the velocity layering formed after fluid passes the Y-shaped symmetric coattail tee joint, so that the aim of rectifying the fluid which passes the Y-shaped symmetric coattail tee joint can be finally achieved.

Description

technical field [0001] The invention relates to a partial component in a ventilation and air-conditioning system, in particular to a Y-shaped symmetrical dovetail diversion and rectification tee of a rectangular air duct. Background technique [0002] Y-shaped symmetrical dovetail diverter tee is a pipe fitting commonly used in ventilation and air conditioning to change the direction of fluid flow and divert it. When the straight section of the pipeline transitions to the curved section (before the end of the bend), the pressure on the outer arc surface increases and the pressure on the inner arc surface decreases. Therefore, the flow velocity of the fluid at the outer dome will decrease, while the flow velocity of the fluid at the inner dome will correspondingly increase. Therefore, the diffusion effect appears near the outer arc surface, while the contraction effect appears near the inner arc surface. When the fluid transitions from the curved pipe section to the straigh...

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Application Information

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IPC IPC(8): F16L41/02F24F13/02
Inventor李安桂邱国志高然雷文君郝鑫鹏
OwnerXI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY