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A multi-stage pressure-reducing V-type ball valve with a combined orifice

A combination of hole and orifice plate technology, applied to valve details, valve devices, cocks including cut-off devices, etc., to achieve the effects of compact overall structure, extended life, and reduced torque

Active Publication Date: 2020-01-14
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the problem of technical insufficiency in the existing research, and further develops a V-shaped ball valve with compact structure, multi-stage pressure reduction and anti-cavitation

Method used

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  • A multi-stage pressure-reducing V-type ball valve with a combined orifice
  • A multi-stage pressure-reducing V-type ball valve with a combined orifice
  • A multi-stage pressure-reducing V-type ball valve with a combined orifice

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Embodiment Construction

[0007] Such as figure 1 As shown, a multi-stage pressure-reducing V-type ball valve with a combined orifice of the present invention includes a valve body 2, the valve body 2 is provided with a valve seat, the disc spring gland 3 presses the disc preload spring 4, and the disc spring The shape pre-tightening spring 4 further presses the sealing ring 6 through the sealing retaining ring 5 to ensure the reliability of the sealing ring. The valve body 2 and the valve seat support ring 8 are sealed by the sealing ring 6 and the O-shaped sealing ring 7. The valve seat support ring 8 presses the valve seat sealing ring 9 to be in close contact with the valve core 10 to form a compensable sealing surface. The top of the base shaft 22 rotates steadily, the valve stem 18 is connected with the valve core 10 through the key 11, the packing gland 16 further compresses the combined packing 13 through the packing sleeve 17, and the packing gasket 12 is arranged under the combined packing 13...

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Abstract

The invention discloses a multi-stage pressure reduction V-shaped ball valve with combined pore plates. A sealing ring (6) and an O-shaped sealing ring (7) are used for sealing the part between a valve body (2) and a valve seat supporting ring (8); the valve seat supporting ring (8) tightly presses a valve seat sealing ring (9), so that the valve seat sealing ring (9) makes tight contact with a valve core (10); double-head studs (1) tightly fixes a base shaft (22) and the valve body (2) together, so that the valve core (10) stably rotates along the top of the base shaft (22); a valve rod (18)is connected with the valve core (10) through a key (11); a packing pressing cover (16) further presses a combined packing (13) through a packing shaft sleeve (17); a packing gasket (12) is arranged under the combined packing (13); the packing pressing cover (16) is fixed on the valve body (2) through a hexagonal bolt combined part (14) and a part (15); and three embedded throttling pressure reduction pore plates are welded inside the valve core (10), and the three throttling pressure reduction pore plates are a hole plate (19), a hole plate (20) and a hole plate (21).

Description

technical field [0001] This patent is a multi-stage pressure-reducing V-type ball valve with a combined orifice plate. The product is mainly used in the fields of electric power, petroleum, chemical industry, aerospace and other fields. Background technique [0002] Due to the improvement of industrialization level, the requirements for the design working conditions of control valves are getting higher and higher. Because of the high internal flow rate of conventional control valves, the internal throttling parts are not only severely eroded and worn, but also often accompanied by cavitation, vibration, air flow, etc. chemical hazards. The V-type regulating ball valve is simple in structure, small in size and widely applicable to various media occasions. At present, some domestic researchers have done preliminary research on the packing seal and valve core shape of the V-shaped regulating ball valve in order to optimize its ability to adjust the flow characteristics and red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06F16K5/20F16K47/04
Inventor 李树勋张万年徐晓刚王天龙王伟波张丽芳朱禄潘伟亮雒相垚康云星刘太雨
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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