Blast balance apparatus

Abstract

The invention provides an air volume balancer applicable to industrial ventilation and dust removing systems such as metallurgy, mine, electric power, cement, etc.. The air volume balancer consisting of a valve body, a transmitting device, an inserting plate connected with the transmitting device and extended inside the valve body, an anti-wear liner plate is arranged on an inner wall of the valve body corresponding to the lower part of the inserting plate, the anti-wear liner plate is in seal combination with the inserting plate when the inserting plate is in completely closed state. When being used, the air volume balancer of the invention can change a flow area through the up and down movement of the inserting plate to regulate the flow, therefore, when a valve is in completely open state, the inserting plate is outside the valve body to avoid the flow resistance caused by a valve plate blocking the air flow; meanwhile, turbulent flow can not be produced as no blocking exists, therefore, straight linear flow flows inside the valve body to greatly reduce noise. Besides, as the anti-wear liner plate is arranged on the inner wall of the valve body, thus reducing the adhesion of dusts, guaranteeing cleanness, smoothness and non-dust accumulation of the air volume balancer of the invention and further reduces noise.

Description

technical field [0001] The invention relates to a device for adjusting the flow balance of dust-containing gas, in particular to an air volume balancer suitable for industrial ventilation and dust removal systems such as metallurgy, mining, electric power, and cement. Background technique [0002] In the dust removal system, the balance adjustment of the dust gas flow is one of the key links to determine the dust removal effect. The traditional dust and gas regulating device uses a light butterfly valve. The structure of the butterfly valve determines the purpose of adjusting the flow through the rotation angle of the valve plate. Even when the opening is the largest, the valve plate is still located in the center of the valve body, which not only forms a large flow resistance, And there will be turbulent flow and noise. At the same time, due to the dust contained in the dust removal gas, this will cause erosion to the butterfly valve itself and the dust removal pipeline. ...

AI Technical Summary

Problems solved by technology

The traditional dust and gas regulating device adopts a light butterfly valve. The structure of the butterfly valve determines the purpose of regulating the flow through the rotation angle of the valve plate. Even when the opening is the largest, the valve plate is still located in the center of the valve body, which not only forms a large flow resistance, And there will be turbulence and noise

At the same time, due to the dust contained in the dust removal gas, this will cause erosion to the butterfly valve itself and the dust removal pipeline.

The traditional solution is to change the butterfly valve material by using wear-resistant steel, surfacing hard alloy, etc., but the effect is not obvious

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