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Adjustable confluence distributor

A distributor and adjustable technology, applied in heating mode, air flow control components, pipeline layout, etc., can solve the problems of increasing branch system resistance, consuming a lot of time and manpower, and resistance loss, so as to reduce system resistance and simplify operation Ease of operation and reduced energy loss

Pending Publication Date: 2020-03-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the first method, the shape of the pipe or tuyere is different, and the uniformity of the air volume is affected by the design level and manufacturing process level, and it is only applicable to the static operation of the system; the second method is adjusted by the damper, and the on-site debugging is complicated and consumes a lot of time. Time and manpower, and the uniformity of air volume achieved by adjusting the opening and closing angle of the air valve is achieved by increasing the resistance of the branch system, which will cause unnecessary resistance loss

Method used

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Examples

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Embodiment 1

[0031] Such as Figure 1-3 As shown, this embodiment provides an adjustable confluence distributor, including a distributor body 1, which is installed at the junction of the main air duct 3 and the branch air duct 4, and the height of its outlet is adjusted by the lifting mechanism 2.

[0032] The main body 1 of the distributor is an upwardly curved flow guide member based on fluid dynamics optimization design, including an arc-shaped pipe section 1-1 and a straight pipe section 1-2. The arc-shaped pipe section 1-1 is arranged above the straight pipe section 1-2. The shaped pipe section 1-1 is composed of two side panels and a quarter-arc-shaped top panel. The width of the side panels is equal to that of the branch air duct 4, and the radius of the arc is smaller than the width of the side panels to ensure that the airflow of the branch air ducts along the The direction parallel to the main air duct flows out into the main air duct; the straight pipe section 1-2 is composed of...

Embodiment 2

[0044] Such as Figure 4-6 As shown, this embodiment is an improvement on the basis of Embodiment 1. The improvement is that: the straight pipe section 1-2 of the distributor body 1 is a sleeve type. At this time, the straight pipe section 1-2 and the arc The pipe section 1-1 is made of uniform material, which can be made of galvanized iron sheet or stainless steel according to specific engineering needs; the size (diameter) of the straight pipe section 1-2 is slightly smaller than that of the branch air pipe 4, so that the end of the straight pipe section 1-2 can be Insert into the branch air pipe, and can move up and down in it, so as to change the outlet height of the distributor main body 1. A good seal should be maintained between the straight pipe section 1-2 and the branch air pipe 4 to prevent air leakage.

[0045] The adjustable confluence distributor in the present invention is installed at the junction of the main air duct and branch air ducts of equal cross-section...

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Abstract

The invention discloses an adjustable confluence distributor, which relates to the technical field of centralized ventilation systems. The adjustable confluence distributor comprises a distributor main body, the distributor main body is installed at the joint of a main air pipe and a branch air pipe, the distributor main body is of an upward-bending flow guide structure and comprises an arc-shapedpipe section and a straight pipe section, and the arc-shaped pipe section is arranged above the straight pipe section. The distributor main body is further connected with a lifting mechanism, and thelifting mechanism is used for adjusting the height of the distributor main body. According to the adjustable confluence distributor, the uniformity of the tail-end exhaust air volume is convenientlyand quickly realized through assembly type installation and parametric debugging, and meanwhile, the resistance of a system can be reduced and the energy consumption of a fan can be reduced through the structural design conforming to the hydrodynamic characteristic.

Description

technical field [0001] The invention relates to the technical field of centralized ventilation systems, in particular to an adjustable confluence distributor. Background technique [0002] Centralized ventilation systems with long straight pipes with multiple ends are widely used in production and life, such as centralized flue exhaust in high-rise kitchens, exhaust along subway station corridors, centralized exhaust from multiple pollution sources in industrial workshops, etc., and require every The air volume at each end is equal. According to the knowledge of fluid mechanics and pipeline characteristics, due to the large resistance at the far fan end and the small resistance at the near fan end in the system, there are often problems in the ventilation system that the exhaust air volume at the end near the fan end is too large and the end air volume at the far fan end is insufficient. . How to ensure the uniformity of the exhaust air at the end of the ventilation system...

Claims

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Application Information

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IPC IPC(8): F24F13/02F24F13/08
CPCF24F13/0236F24F13/08
Inventor 高军柳国栋曹昌盛曾令杰侯玉梅
Owner TONGJI UNIV