A ventilation system and method for realizing multi-point uniform flow based on linear processing
A linear processing and ventilation system technology, applied in the field of ventilation systems, can solve the problems of mutual influence of air flow characteristic indicators, difficulty in adjusting the flow rate to the required value, etc., and achieve the effect of high adjustment accuracy and stable technical parameters
Inactive Publication Date: 2018-10-09
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
It solves the problem that the non-linear interaction between various air flow characteristic indexes in the prior art makes it difficult to evenly adjust the flow in each independent branch to the required value
Method used
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[0028] figure 1 It is a schematic structural diagram of the prior art, and the specific technical solution is described in the background art.
[0029] Such as Figures 2 to 5 shown. A kind of drafting system that realizes multi-point uniform flow based on linear processing, including drafting duct 25, and a plurality of exhaust hoods 26 connected on the drafting duct 25 through pipelines; Static plenum 22, independent branch pipe 21, exhaust hood 26; the number of the independent branch pipes 21 is multiple, and the C ends of each independent branch pipe 21 are respectively connected to an independent branch pipe damping joint 31 of the static pressure box 22, and the B ends are respectively Connect an exhaust hood 26; each independent branch pipe 21 is a circular air duct with equal diameters.
[0030] The air flow path of the plenum box 22 is provided with a negative pressure chamber 35 , a pressure equalizing plate 34 and an isobaric chamber 33 in sequence; the independ...
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The invention discloses an exhaust system for realizing a multi-point uniform flow based on linear processing and a method thereof. The exhaust system comprises an exhaust pipe, and multiple exhaust covers connected to the exhaust pipe through a pipeline; the exhaust pipe is connected with a main pipe wind volume adjusting valve and a static pressure box in sequence; each exhaust cover is connected with the static pressure box through independent branch pipe; the static pressure box is used for enabling the differential pressure of two ends of each independent branch to be the same; and the pressure head loss CD generated by a damping joint of each independent branch pipe by using the static pressure box enables the pressure head loss of each independent branch to be substantially the same and to be CD, so that it is easy to enable the flow of each independent branch to be the same. The system preferably solves the problem of difficulty in uniform adjustment of the flow of each branch due to nonlinear influence of each air flow characteristic index in the prior art. The main pipe air volume adjusting valve is adjusted to easily solve the problem of difficult realization of F1=F2=......=Fn=Fs in the prior art.
Description
technical field [0001] The invention relates to the field of industrial ventilation, in particular to an exhaust system and a method for realizing multi-point uniform flow based on linear processing. Background technique [0002] In the field of industrial ventilation in factories, there are often the following situations: there are N identical workbenches in a certain workshop, and their respective actual exhaust air volumes are: F1, F2, ..., Fn; It is required that the N exhaust air volumes all have a certain required value Fs. That is to say: F1=F2=...=Fn=Fs; this is the ventilation system required by multi-point uniform flow. For example: A chemical fiber factory has a workshop with N sets of the same drawing machine. If the air volume is not enough, the smoke from chemical fiber drawing will not be cleaned. If the air volume is too large and the suction speed is too high, the adjacent chemical fiber yarns will be blown Mutual sticking together affects the process; and...
Claims
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IPC IPC(8): F24F7/04F24F11/74
CPCF24F7/04F24F11/74
Inventor 容强
Owner SOUTH CHINA UNIV OF TECH