High temperature high pressure difference gate valve
By installing a sampling tube and a filter assembly in a high-temperature, high-pressure differential gate valve, the problem of oil contaminants entering the valve body is solved, oil filtration and backflow prevention are achieved, the rotational stability of the valve plate and the service life of the gate valve are improved, and maintenance is facilitated.
CN114321402BActive Publication Date: 2026-06-26SHUANGHENG VALVE
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHUANGHENG VALVE
- Filing Date
- 2021-11-11
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
When transporting oil, traditional high-temperature and high-pressure differential gate valves are prone to oil contaminants entering the valve body, which can obstruct the rotation of the valve disc, reduce service life, and make maintenance inconvenient.
Method used
Sampling tubes and filter components are installed at both ends of the valve body. The inlet pipe is equipped with a filter component, and the outlet pipe is equipped with an anti-backflow component. The valve stem and valve plate are connected by a snap-fit mechanism for easy disassembly and assembly.
Benefits of technology
It effectively filters oil stains, prevents backflow, improves the stability of valve plate rotation, extends the service life of gate valve, and facilitates maintenance.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114321402B_ABST
Abstract
The application discloses a high-temperature and high-pressure-difference gate valve, which comprises a valve body, a valve seat fixedly installed at the top end of the valve body, a valve rod threadedly installed on the valve seat, a valve piece rotatably installed in the valve body, a liquid inlet pipe fixedly installed at one end of the valve body, a filtering assembly fixedly installed in the liquid inlet pipe, a liquid outlet pipe fixedly installed at the end of the valve body far from the liquid inlet pipe, an anti-backflow assembly fixedly installed in the liquid outlet pipe, and a sampling pipe fixedly installed on the liquid outlet pipe and the liquid inlet pipe. The filtering assembly installed in the liquid inlet pipe can filter the oil entering the valve body, avoids the oil stains accumulated in the pipeline from entering the valve body, prevents the sludge from adhering to the valve piece to hinder the rotation of the valve piece, the shaft installed on the valve rod and the valve piece for controlling the rotation of the valve piece adopts a clamping connection structure, the valve rod can be conveniently disassembled, removed from the gate valve and maintained or replaced, the connection between the valve rod and the valve seat is prevented from being stuck for a long time, and the service life of the gate valve is greatly prolonged.
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