A direct current stop valve
By designing a DC shut-off valve, the handwheel drives the valve core to rotate and the media flow hole is aligned with the runner, the existing shut-off valve has large flow resistance and easy cavitation, achieving more efficient medium circulation and longer service life.
CN115046025BActive Publication Date: 2025-03-18NANTONG POWER STATION VALVE
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Patent Information
- Application Number
- CN202210902216.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2042-07-29
AI Technical Summary
Technical Problem
The existing shut-off valve has complex flow channels, large fluid resistance, low media circulation efficiency, and is prone to cavitation and cavitation problems when opening and closing.
Method used
A DC shut-off valve is designed to drive the rotation of the valve core through a handwheel, and the medium flow channel is connected or separated. The central axis of the valve stem is the same as the angle between the medium flow channel and the medium flow channel to avoid changes in the medium flow rate and vortex current.
Benefits of technology
It effectively reduces the flow resistance of the medium, avoids cavitation and cavitation problems, extends the service life of the valve, and improves the flow efficiency of the medium.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the field of valve technology, and specifically discloses a direct current stop valve, including a hand wheel, a valve stem, a valve body, and a valve core and a valve seat arranged in the valve body. The valve stem is inserted into the valve body, and one end thereof extends out of the valve body and is connected to the hand wheel, and the other end is sleeved with a valve core. A medium flow channel is arranged in the valve body, and a medium flow hole is arranged on the valve core. The hand wheel drives the rotation of the valve core to connect or block the medium flow hole with the medium flow channel. When the valve in the present invention is closed, the hand wheel is turned to drive the valve core at the bottom of the valve stem to rotate, and the medium flow hole on the valve core blocks the medium flow; when the valve is opened, the hand wheel is turned to drive the valve core at the bottom of the valve stem to rotate, so that the medium flow hole on the valve core is connected with the medium flow channel, thereby playing a guiding role, avoiding the generation of eddy currents during the medium flow process, reducing the valve flow resistance, and solving the problem that the direct current stop valve is prone to cavitation and cavitation during operation.
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