An improved flue gas reversing device

Abstract

The invention relates to an improved flue gas reversing device, which does not need to be sealed with easily aging silicon rubber, has good sealing performance, simple structure, can greatly improve production efficiency and reduce production cost. It includes a valve body and a sealing valve plate. The valve body is connected with a flue gas inlet and two flue gas outlets. The one flue gas inlet is opposite to the two flue gas outlets. The flue gas inlet is arranged along the axial Located in the middle of the two flue gas outlets, two pairs of sealing seats are installed on the inner wall of the valve body, and the two pairs of sealing seats are respectively located on both sides of the flue gas inlet. The driving device, the pneumatic driving device is connected to the sealing valve plate, which is characterized in that: the sealing valve plate is connected with an upper extension pipe and a lower extension pipe through a valve plate clamping adjustment device, and the upper extension pipe is connected to the pneumatic valve plate. The driving device, the lower extension tube is connected to the low-level guide device, and the two ends of the sealing valve plate are in a contact and sealing state with the sealing seat during operation.

Description

(1) Technical field [0001] The invention relates to the technical field of waste incineration power generation, in particular to an improved flue gas reversing device. (2) Background technology [0002] At present, the dust removal equipment in the flue gas treatment system of waste incineration power plants is mainly based on the bag filter. In order to ensure the safe use of the dust collector, the bag filter is usually equipped with a flue gas reversing device. The traditional flue gas reversing device has a rigid contact between the sealing valve plate and the sealing seat. Silicone rubber is generally used as the gasket to ensure the sealing between the two. Features, silicone rubber is prone to rapid aging and failure, resulting in the leakage of high-temperature acidic flue gas, causing the flue gas containing a large amount of harmful dust to be directly discharged into the atmosphere, causing serious pollution to the environment. Frequent downtime to replace aging ...

AI Technical Summary

Problems solved by technology

The traditional flue gas reversing device has a rigid contact between the sealing valve plate and the sealing seat. Silicone rubber is generally used as the gasket to ensure the sealing between the two. Features, silicone rubber is prone to rapid aging and failure, resulting in the leakage of high-temperature acidic flue gas, causing the flue gas containing a large amount of harmful dust to be directly discharged into the atmosphere, causing serious pollution to the environment. Frequent downtime to replace aging silicone rubber reduces production efficiency and causes large economic losses

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