Branch air volume self-adjustment based air volume control system

Abstract

The invention relates to a branch air volume self-adjustment based air volume control system which comprises a branch electric air valve, a branch air speed and air pressure sensor and a branch controller. The branch electric air valve is mounted on a branch of an air pipe and used for adjusting air volume of the branch; the branch air speed and air pressure sensor is mounted on the branch and used for collecting the given air volume, calculating current actual air volume of the branch according to air speed and air pressure, detected by the branch air speed and air pressure sensor, of the branch and the pipe diameter of the branch, and adjusting openness of a branch electric air valve by the aid of a continuous adjusting control method so as to enable the air volume of the branch can reach the given air volume. The branches of the air pipes have air volume self-adjusting capacity, so that the air volume of dust absorption spots do not rely on pipeline characteristics and station changes of the whole pipeline. Compared with the prior art, the branch air volume self-adjustment based air volume control system has the advantages that the system is simple and reliable, difficulty in implementation is low, and universality is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of ventilation, such as the fields of dust removal ventilation and heating ventilation, and in particular relates to an air volume control system based on branch air volume self-adjustment. Background technique [0002] A dust removal ventilation system generally consists of a dust removal fan, a dust collector body, and an air duct. For a large-scale ventilation and dust removal system, there are often tens to hundreds of dust collection points connected to the air duct, and we expect a stable and satisfactory dust collection wind force at each dust collection point, that is to say Get the rated air volume at each suction point. [0003] 1. Since there are many nodes on the air duct, many pipes with different diameters, elbows, tees and variable diameters will be used on the duct. In the air ducts at different positions, the distribution of wind pressure, wind speed and air volume is also different, such a...

AI Technical Summary

Problems solved by technology

[0011] 2. Poor versatility

The pipeline characteristics of almost every dust removal system are different. Even in the same industrial and mining factory, it is necessary to establish separate calculation models for different dust removal systems. Therefore, the versatility of the system is very poor, and the design cycle of the system is long and difficult to design. Big

[0012] 3. Low reliability

Since the fan speed control system and branch air valve adjustments all depend on the pipe network characteristic calculation and control system server, once there is a problem with the server, the entire system adjustment function will be completely paralyzed

Images