Rotary valve used for regenerative combustion device

Abstract

The invention discloses a rotary valve structure of regenerative thermal oxidizer (RTO) equipment. The rotary valve structure comprises a valve body of a single-layer cylindrical structure and a center shaft longitudinally arranged in the center of the valve body. The top and the bottom of the valve body are opened. An opening in the top of the valve body is partially sealed through a fan-shaped top plate connected with the center shaft. An opening in the bottom of the valve body is partially sealed through a fan-shaped bottom plate connected with the center shaft. A plurality of vent holes are formed in the side surface of the valve body. Since the center shaft connected with the top plate and the bottom plate is arranged, the rotary valve structure is simplified, and manufacturing and mounting are facilitated; all cavities are reasonably arranged and mutually partitioned, so that air outputs of all the cavities are uniform; and through a purging device additionally arranged, treated waste gas can be blown out of the RTO equipment, and the purification effect and stable operation of the equipment are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of organic waste gas oxidation and incineration equipment, and relates to a rotary valve for a regenerative combustion device. Background technique [0002] The Chinese name of RTO is regenerative oxidation furnace. Its principle is to oxidize the organic matter (VOCs) in the waste gas into corresponding carbon dioxide and water at high temperature, thereby purifying the organic waste gas and recovering the heat released when the waste gas is decomposed. Three-chamber RTO waste gas The decomposition efficiency reaches over 99%, and the heat recovery efficiency reaches over 95%. The main structure of RTO is composed of combustion chamber, regenerator and switching valve. The existing RTO equipment on the market is mainly two-chamber and three-chamber. The switching valve of the equipment needs to be opened frequently, which is prone to failure after long-term work, and the flow rate of organic waste gas sent...

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Problems solved by technology

The existing RTO equipment on the market is mainly two-chamber and three-chamber. The switching valve of the equipment needs to be opened frequently, which is prone to failure after a long time of work, and the flow rate of organic waste gas sent to each oxidation chamber is uneven, which affects the treatment efficiency; The rotary valve of the RTO equipment can evenly supply air to each oxidation chamber by rotating, which can ensure the uniform air intake of each oxidation chamber and improve the processing efficiency. The rotary valve works in a simple way, does not need to be opened frequently, and the equipment failure rate is low, but It has a bulky and complex structure, is difficult to process and manufacture, and is difficult to install during equipment assembly, which also affects the purification efficiency

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