一种耐高温的高炉煤气调节阀
By designing a hollow structure and cooling components, combined with a heat-resistant alloy lining and ceramic coating, the sealing failure and regulation accuracy problems of blast furnace gas regulating valves under high temperature and high pressure environments have been solved. This has achieved efficient cooling and improved high temperature resistance, ensuring the stable operation and production efficiency of blast furnace gas regulating valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING JINHUAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-17
AI Technical Summary
Blast furnace gas regulating valves are prone to gas leakage and low production efficiency due to valve body deformation, sealing failure, aging and failure of traditional sealing materials, and decreased regulation accuracy under high temperature and high pressure environments. Existing technologies have limited cooling effects or do not take into account high temperature environments.
The valve assembly and cooling assembly, which adopt a hollow structure, include a spiral cooling channel, a circulating pump, a plate heat exchanger and a return pipe, to form a cooling water circulation. Combined with a heat-resistant alloy lining and a ceramic coating, they achieve continuous cooling and improved high-temperature performance.
It effectively reduces the temperature of the valve plate and valve body, avoids deformation and sealing failure, improves regulation accuracy and service life, and ensures stable operation and production efficiency of blast furnace gas regulating valve in high-temperature environment.
Smart Images
Figure CN224516121U_ABST
Abstract
Claims
1. A high temperature resistant blast furnace gas regulating valve characterized by: include, The valve assembly (100) includes a valve body (110), a valve plate (120) located in the inner cavity of the valve body (110), and a valve stem (150) fixedly connected to the valve plate (120). Both the valve plate (120) and the valve stem (150) adopt a hollow structure, and the valve stem (150) communicates with the inner cavity of the valve plate (120). The cooling assembly (200) includes a spiral cooling channel (210) located in the hollow layer of the valve plate (120), a circulation pump (220) located on one side of the valve assembly (100), a plate heat exchanger (230) for cooling water heat exchange, and a return pipe (240) and a circulation pipe (250) for cooling water circulation.
2. The high temperature resistant blast furnace gas regulating valve as claimed in claim 1, wherein: The valve assembly (100) also includes a support seat (130) located on top of the valve body (110), an electric actuator (140) located on top of the support seat (130), and a heat-resistant alloy liner (160) located in the inner cavity of the valve body (110), and the surface of the valve plate (120) is coated with a high-temperature resistant ceramic coating.
3. The high temperature resistant BFG regulating valve as claimed in claim 2 wherein: A ceramic fiber insulation layer is also provided between the valve body (110) and the heat-resistant alloy liner (160). The bottom of the valve plate (120) is rotatably connected to the inner wall of the valve body (110) via a pivot. The heat-resistant alloy liner (160) is fixedly connected to the inner wall of the valve body (110).
4. The high temperature resistant BFG regulating valve as claimed in claim 2 wherein: The support base (130) is fixed to the top of the valve body (110) by bolts, the electric actuator (140) is fixed to the top of the support base (130) by bolts, and the valve stem (150) has one end away from the valve plate (120) passing through the valve body (110) and the support base (130) and being connected to the output shaft of the electric actuator (140) for transmission.
5. The high temperature resistant BFG regulating valve as claimed in claim 1 wherein: The valve stem (150) is provided with an inlet water channel and an outlet water channel, and the inlet water channel and outlet water channel of the valve stem (150) are respectively connected to the inlet and outlet of the spiral cooling channel (210).
6. The high temperature resistant BFG regulating valve as claimed in claim 1 wherein: One end of the return pipe (240) is connected to the water outlet channel inside the valve stem (150), and the other end of the return pipe (240) is connected to the heat inlet of the plate heat exchanger (230). The inlet of the circulating pump (220) is connected to the heat outlet of the plate heat exchanger (230).
7. The high temperature resistant BFG regulating valve as claimed in claim 1 wherein: The outlet of the circulating pump (220) is connected to one end of the circulating pipe (250), and the other end of the circulating pipe (250) is connected to the water inlet channel inside the valve stem (150). The return pipe (240) and the circulating pipe (250) are both connected to the valve stem (150) through a rotary joint.