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Double-sealing high-temperature high-pressure elastic ball valve seat structure

A high-temperature, high-pressure, double-sealing technology, applied to valve devices, cocks including cut-off devices, engine components, etc., can solve problems such as valve safety and medium leakage, which is beneficial to sealing, ensuring safety and reducing risks Effect

Pending Publication Date: 2019-11-12
JIANGSU SHENTONG VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structure of the high temperature and high pressure ball valve with the existing structure has certain disadvantages, which is easy to cause medium leakage, and cannot guarantee the safety of the valve in field working conditions.

Method used

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  • Double-sealing high-temperature high-pressure elastic ball valve seat structure

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Embodiment Construction

[0008] Such as figure 1 As shown, a double-seal high-temperature and high-pressure elastic ball valve seat structure includes a ball, a valve seat, a sealing ring I, a sealing ring II, a spring seat, a spring, a pressure ring, a pressure sleeve, and a valve body. The valve seat abuts on the ball There is a deep groove at the end, and the valve seat is provided with two concentric sealing rings I, and the sealing ring I is fixed by a spring seat, and a spring is installed on the spring seat, and the spring is pressed against the pressure ring. Two concentric sealing rings II are arranged between the pressure ring and the pressure sleeve, and the pressure sleeve is in contact with the valve body.

[0009] Working principle: When the valve is closed, the two concentric sealing rings II between the pressure ring and the pressure sleeve and the sealing ring I at the lower end of the valve seat act as the first seal. When the first seal fails, the sealing ring I at the upper end of ...

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Abstract

The invention discloses a double-sealing high-temperature high-pressure elastic ball valve seat structure. The structure involves a ball body, a valve seat, sealing rings I, sealing rings II, a springseat, a spring, a pressing ring, a pressing sleeve and a valve body, wherein a deep groove is formed in the end, abutting against the ball body, of the valve seat, the valve seat is provided with twoconcentric sealing rings I, the sealing rings I are fixed through the spring seat, the spring is mounted on the spring seat, the spring abuts against the pressing ring, two concentric sealing rings II are arranged between the pressing ring and the pressing sleeve, and the pressing sleeve abuts against the valve body. The structure has the beneficial effects that the improved high-temperature high-pressure ball valve structure has double sealing, and meanwhile, the valve seat has certain elasticity so that the risk of medium leakage can be effectively reduced, and the safety of the valve usedin field working conditions is ensured.

Description

technical field [0001] The invention relates to a valve seat structure of a double-seal high-temperature and high-pressure elastic ball valve. Background technique [0002] At present, the existing high-temperature and high-pressure ball valves generally only have a packing sealing ring structure, and there is no elastic structure design between the valve seat and the ball. Under high temperature and high temperature conditions, a packing sealing structure not only has a short service life, but also has a poor sealing effect. The inelastic structure design between the valve seat and the sphere makes there is no elasticity between the valve seat and the sphere, so that the valve seat and the sphere cannot be in good contact, and leakage is likely to occur. When there is a problem with a packing sealing ring, the medium will leak from the packing sealing ring. Therefore, the structure of the high temperature and high pressure ball valve of the existing structure has certain d...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/20
CPCF16K5/201F16K5/0689
Inventor 张静施海健张懿骅朱晓华
Owner JIANGSU SHENTONG VALVE
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