Top-mounted ultralow-temperature floating ball valve

A floating ball valve, ultra-low temperature technology, applied in the direction of valve details, valve device, valve shell structure, etc., can solve the problems of difficult leakage to meet the standard requirements, reduced sealing performance, leakage, etc., to achieve simple structure, improved sealing performance, and guaranteed sealing sexual effect

Pending Publication Date: 2022-07-01
纳福希(上海)阀门科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, at ultra-low temperatures, the leakage of most ball valve body structures is difficult to meet the standard requirements, because the size of the valve seat will shrink under low temperature, resulting in greatly reduced sealing performance, resulting in leakage. Therefore, an improvement is urgently needed technology to solve this problem existing in the prior art

Method used

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  • Top-mounted ultralow-temperature floating ball valve
  • Top-mounted ultralow-temperature floating ball valve
  • Top-mounted ultralow-temperature floating ball valve

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention;

[0028] It should be noted that, in the description of the present invention, it should be noted that the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end" and "left" The orientation or positional relationship indicated by "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indi...

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Abstract

An annular protrusion is arranged at the bottom end of a valve body, an annular groove is formed in the inner side of the annular protrusion, a movable ring and a disc spring are arranged in the annular groove, the valve body is connected with the bottom end of the valve body, and a valve seat pressing ring is arranged at the position, located at an opening, of the upper end of the valve body. A valve seat frame and a valve seat are symmetrically arranged at the two ends in the valve body, the valve seat is arranged on the inner side of the valve seat frame and matched with the valve seat frame, and the upper end of the valve seat is connected with the lower surface of the valve seat pressing ring. The disc spring compensation type ball valve is reasonable in structure, the disc spring compensation ring compresses downward pre-tightening force of the valve seat compression ring, initial sealing is achieved, the multistage concentric circles are adopted in the contact position of the valve seat and the valve seat frame, and therefore the disc spring compensation type ball valve can be used for sealing the ball valve. And the sealing performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ball valves, in particular to a top-loading ultra-low temperature floating ball valve. Background technique [0002] Ball valve, the opening and closing part is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. At present, under ultra-low temperature, the leakage of most ball valve body structures is difficult to meet the standard requirements, because the size of the valve seat will shrink when the low temperature is removed, which will greatly reduce the sealing performance and lead to leakage. Therefore, an improvement is urgently needed. technology to solve this problem existing in the prior art. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a top-loading ultra-low temperature floating ball valve, the size of the valve seat and the valve seat frame shrinks at low temperature, resulting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/20F16K27/06F16K27/08
CPCF16K5/0636F16K5/0689F16K5/0694F16K5/0647F16K5/201F16K27/067F16K27/08
Inventor 辛朋洲
Owner 纳福希(上海)阀门科技有限公司
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