A valve for exhaust gas recirculation based on a desulfurization tower

By setting an internal air port and groove in the exhaust gas recirculation valve, and using the movement of the valve core to control the gas flow, the problem of impurities eroding the sealing surface is solved, and the valve's sealing performance and stability are achieved. This system is suitable for exhaust gas recirculation systems of marine diesel engines.

CN122407412BActive Publication Date: 2026-09-15HUIGE CARBON NEUTRAL TECHNOLOGY (NANTONG) CO LTD
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Patent Information

Application Number
CN202610885772.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-06-18
Publication Date
2026-09-15
Estimated Expiration
2046-06-18

AI Technical Summary

Technical Problem

When the existing exhaust gas recirculation valve is opened, a large flow of impurities will come into contact with the sealing surfaces of the valve body and valve stem for a long time, causing corrosion and resulting in poor sealing after long-term operation.

Method used

A valve for waste gas recirculation based on a desulfurization tower was designed. By setting an inner gas port and a groove, the movement of the valve core connects or disconnects the inner and outer gas ports, avoiding direct contact between waste gas and the sealing surface. A power component and a drive component are used to control the opening and closing of the valve core to ensure gas flow.

Benefits of technology

It effectively avoids the corrosion of the sealing surface by impurities, ensures the sealing performance of the valve, reduces the possibility of impurities adhering to the sealing surface, and ensures the stable operation of the valve under different working conditions.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a valve for waste gas recirculation based on a desulfurization tower and particularly relates to the field of valves, which comprises a valve body, an air inlet and an air outlet horizontally arranged on the valve body, a valve sleeve installed between the air inlet and the air outlet, the axis of the valve sleeve being perpendicular to the axes of the air inlet and the air outlet, a valve core arranged in the valve sleeve, and an elastic component one installed at the bottom of the valve core and used for resetting the valve core upward; and a side wall of the valve sleeve is provided with a ring of outer air inlets in communication with the air inlet. The application realizes the on-off of gas by setting the inner air inlets and the grooves, moving the valve core to make the inner air inlets and the outer air inlets communicate or make the grooves and the outer air inlets communicate. By the mode that the waste gas contacts with the inner wall of the groove when the valve is closed, the problem of impurity adhesion and corrosion caused by the continuous contact of the waste gas with the sealing surface can be avoided, the problem that the impurities are brought to the sealing surface of the valve sleeve by the sealing surface of the valve core can be avoided, and the sealing property of the valve is ensured.
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