Plenum chamber with reverse speed distribution

A technology of reverse speed and static pressure box, applied in the direction of airflow control elements, etc., can solve the problems of small air outlet speed at the upper part of the air outlet and large air outlet speed at the lower part of the air outlet, so as to achieve good uniformity, improve effectiveness, and improve The effect of consistency

Pending Publication Date: 2019-03-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the prior art that there is no wind in the middle of the air outlet of the static plenum, the air outlet speed is small at the upper part of the air outlet, and the air outlet speed is large at the lower part of the air outlet, that is, the upper and lower sides of the air outlet have reverse velocity distribution, the purpose of the present invention is to , providing a plenum with reverse velocity distribution

Method used

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  • Plenum chamber with reverse speed distribution
  • Plenum chamber with reverse speed distribution
  • Plenum chamber with reverse speed distribution

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Embodiment

[0037] like Figure 5 As shown, using a traditional plenum box, since the air outlet 3 is too close to the airflow turning point, the airflow will change its direction quickly, and most of the airflow will flow out along the upper air outlet 3, resulting in the wind speed at the upper part of the air outlet. Large, the lower wind speed is small.

[0038] Adopt among the present invention and be divided into upper, middle and lower splitter plate 4, wherein the aperture of the hole on the upper part 4-1 of the splitter plate and the lower part 4-3 of the splitter plate is 0.05m, the upper part of the splitter plate 4 The opening rate of -1 is 24.3%, and the opening rate of 4-3 at the lower part of the splitter plate is 78.5%. At the same time, the air outlet 3 adopts a honeycomb panel with a thickness of 0.075m and an aperture of 0.02m; Image 6 It can be seen that the wind speed at the upper part of the air outlet is small, the speed at the lower part is large, and there is n...

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Abstract

The invention belongs to the field of parallel flow blow-suction-type ventilation systems, and provides a plenum chamber with reverse speed distribution. The plenum chamber comprises a chamber body, aflow dividing plate dividing the chamber body into a front part and a rear par is arranged in the chamber body; an air inlet is formed below the rear part of the chamber body, an air outlet is formedin the front side of the front part of the chamber body, and the air inlet direction is perpendicular to the air outlet direction; and the flow dividing plate is divided into an upper part, a middlepart and a lower part, a plurality of holes are uniformly distributed in the upper part and the lower part of the flow dividing plate, and the fractional hole area of the upper part of the flow dividing plate is smaller than that of the lower part of the flow dividing plate. According to the plenum chamber, airflow is effectively divided, so that no air is supplied in the middle of the air outlet,the air supply speed on the upper part is low, and the air supply speed on the lower part is high, thus the reverse speed distribution of the air outlet is realized, and the air supply efficiency isimproved.

Description

technical field [0001] The invention belongs to the field of parallel flow blowing and suction ventilation systems, and in particular relates to a static pressure box with reverse velocity distribution. Background technique [0002] Parallel-flow blow-suction ventilation systems are often equipped with a static pressure box in front of the air outlet to improve the uniformity and efficiency of air supply, thereby ensuring effective control of pollutants. Since the fluid inlet and outlet of the plenum box are perpendicular to each other, and the space of the plenum box is limited, the flow direction must be changed before the fluid reaches the full development stage after entering the box. The wind speed from the upper part is small, and the wind speed from the lower part of the air outlet is high, that is, the upper and lower parts of the air outlet have a reverse velocity distribution. It is difficult to meet the design requirements by using a traditional static pressure bo...

Claims

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Application Information

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IPC IPC(8): F24F13/08
CPCF24F13/08
Inventor 王怡权梦凡周宇肖萍
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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