CN103398201B - Y shape valve body screw thread connects high temperature and high pressure cut-off valve - Google Patents

Y shape valve body screw thread connects high temperature and high pressure cut-off valve Download PDF

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Publication number
CN103398201B
CN103398201B CN201310362106.1A CN201310362106A CN103398201B CN 103398201 B CN103398201 B CN 103398201B CN 201310362106 A CN201310362106 A CN 201310362106A CN 103398201 B CN103398201 B CN 103398201B
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China
Prior art keywords
valve
valve body
screw thread
flap
shape
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Application number
CN201310362106.1A
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Chinese (zh)
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CN103398201A (en
Inventor
徐永明
胡永祥
郭玉林
赵怀忠
朱祥
韩健莉
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Nantong State Electric Power Valve Co., Ltd.
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NANTONG STATE ELECTRIC POWER VALVE CO Ltd
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Priority to CN201310362106.1A priority Critical patent/CN103398201B/en
Publication of CN103398201A publication Critical patent/CN103398201A/en
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Abstract

The present invention relates to stop valve field, be specifically related to a kind of Y shape valve body screw thread and connect high temperature and high pressure cut-off valve.It includes that valve body, valve seat, flap, valve rod, valve gap, sealing mechanism and gearhead, described valve body are divided into upper valve body and lower valve body, upper valve body and lower valve body to connect by screw bolt and nut is fixing, and centre is equipped with sealing ring;Inlet channel and the outlet flow of described Y shape valve body screw thread connection high temperature and high pressure cut-off valve are oblique lines, and runner forms Y-shaped shape with valve rod direction.It is an advantage of the invention that Y shape valve body screw thread connection high temperature and high pressure cut-off valve compensate for sealing member and damages the problem of not easy detachable, easy to maintenance;Solve through type Y shape valve body screw thread and connect high temperature and high pressure cut-off valve fluid resistance greatly, the problem of the easy accumulated slag of corner;Solve valve sealing face zero seepage, improve flap and the anti-cavitation of valve seat and the ability of antiscour, improve overall performance and the use of valve.

Description

Y shape valve body screw thread connects high temperature and high pressure cut-off valve
Technical field
The present invention relates to stop valve field, be specifically related to a kind of Y shape valve body screw thread and connect high temperature and high pressure cut-off valve.
Background technology
Traditional stop valve body is overall.Valve body mainly has two kinds of forms with the combination of valve seat;One is valve base sealing Face is directly welded in valve seal position and processes.Two is according to different media, after the selection of material makes valve seat, uses swollen Expand, threaded, pressing, the method such as welding are fixed on the sealing position of valve body.After the valve seat damage of these two kinds of forms, it is difficult to Remove the valve seat repaired or more renew.And traditional stop valve fluid resistance is big, the problem of the easy accumulated slag of corner.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of Y shape valve body screw thread and connects high temperature and high pressure cut-off valve, and structure is closed Reason, function admirable, handsome in appearance, the pressure limit being suitable for is wide, is mainly used to connect or block the medium in pipeline, has resistance to Mill, high temperature resistant, the advantage such as antifraying property is good, length in service life.
In order to achieve the above object, the present invention proposes techniques below scheme:
Y shape valve body screw thread connects high temperature and high pressure cut-off valve, and it includes valve body, valve seat, flap, valve rod, valve gap, sealing mechanism And gearhead, flap is loaded in the middle of valve body, and valve seat is contained in below flap, and valve rod lower end connects flap upper end, and flap is pressed with valve Lobe lid, sealing mechanism is contained in valve body upper end, and valve gap is tightened on valve body upper end, and valve rod passes from sealing mechanism, and valve rod upper end fills In gearhead, gearhead lower end is bolted, and described valve body is divided into upper valve body and lower valve body, upper valve body and lower valve body Connect by screw bolt and nut is fixing, and centre is equipped with sealing ring;Described Y shape valve body screw thread connects High Temperature High Pressure cut-off The inlet channel of valve and outlet flow are oblique lines, and runner forms Y-shaped shape with valve rod direction.The runner of valve body and main flow Road becomes an oblique line, and the destructiveness of such flow regime is less than conventional stop valve, thereby through the pressure loss also phase of valve That answers is little.
Described sealing mechanism includes filler chamber, sealing ring, Packing seat, filler, Packing seat with holes, gripper shoe, split circle Ring, hold-down grid, gland and pretension plate, filler chamber is contained in upper valve body upper end, and between valve rod and upper valve body, sealing ring is contained in Above filler chamber, between filler chamber and valve body, between filler chamber and valve rod the most once equipped with Packing seat, filler, Packing seat with holes and filler, gland is pressed on filler, and hold-down grid is pressed on gland, and is fixedly connected on by stud and nut In gripper shoe, it is designed with pretension plate above valve gap outside filler chamber, above pretension plate, is designed with gripper shoe, gripper shoe and filler chamber Equipped with split annulus between upper end.
It is an advantage of the invention that Y shape valve body screw thread connects high temperature and high pressure cut-off valve and compensate for sealing member and damage not easy detachable Problem, easy to maintenance;Solving through type Y shape valve body screw thread and connect high temperature and high pressure cut-off valve fluid resistance greatly, corner is easy The problem of accumulated slag;Solve valve sealing face zero seepage, improve flap and the anti-cavitation of valve seat and the ability of antiscour, improve valve The overall performance of door and use.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
In figure: lower valve body 1, flap 2, valve clack cover 3, valve rod 4, filler chamber 5, sealing ring 6, valve gap 7, Packing seat 8, filler 9, Packing seat 10 with holes, gripper shoe 11, split annulus 12, stud 13, nut 14, bolt 15, gearhead 16, hold-down grid 17, pressure Set 18, pretension plate 19, upper valve body 20, bolt 21, nut 22, sealing ring 23, valve seat 24.
Detailed description of the invention
In order to the present invention is further described, introduce below in conjunction with Figure of description:
Referring to the drawings 1, Y shape valve body screw thread connects high temperature and high pressure cut-off valve, and it includes valve body, valve seat 24, flap 2, valve rod 4, valve gap 7, sealing mechanism and gearhead 16, flap 2 is loaded in the middle of valve body, and valve seat 24 is contained in below flap 2, and valve rod 4 lower end is even Connecing flap 2 upper end, flap 2 is pressed with valve clack cover 7, sealing mechanism is contained in valve body upper end, and valve gap 7 is tightened on valve body upper end, valve rod 4 Passing from sealing mechanism, valve rod 4 upper end is contained in gearhead 16, and gearhead 16 lower end is fixed by bolt 15, described valve Body is divided into upper valve body 20 and lower valve body 1, upper valve body 20 and lower valve body 1 to be fixed connected by bolt 21 and nut 22, and in Between equipped with sealing ring 23;Inlet channel and the outlet flow of described Y shape valve body screw thread connection high temperature and high pressure cut-off valve are one Oblique line, and runner and valve rod 4 direction form Y-shaped shape.
Described sealing mechanism includes filler chamber 5, sealing ring 6, Packing seat 8, filler 9, Packing seat with holes 10, gripper shoe 11, split annulus 12, hold-down grid 17, gland 18 and pretension plate 19, filler chamber 5 is contained in upper valve body 20 upper end, is positioned at valve rod 4 He Between upper valve body 20, sealing ring 6 is contained in above filler chamber 5, between filler chamber 5 and upper valve body 20, and filler chamber 5 and valve rod 4 Between the most once equipped with Packing seat 8, filler 9, Packing seat with holes 10 and filler 9, gland 18 is pressed on filler 9, filler Pressing plate 17 is pressed on gland 18, and is fixedly connected in gripper shoe 11 by stud 13 and nut 14, valve gap 7 filler chamber 8 above Outside is designed with pretension plate 19, is designed with gripper shoe 11, equipped with right between gripper shoe 11 and filler chamber 8 upper end above pretension plate 19 Open annulus 12.

Claims (1)

1.Y shape valve body screw thread connect high temperature and high pressure cut-off valve, it include valve body, valve seat, flap, valve rod, valve gap, sealing mechanism and Gearhead, flap is loaded in the middle of valve body, and valve seat is contained in below flap, and valve rod lower end connects flap upper end, and flap is pressed with flap Lid, sealing mechanism is contained in valve body upper end, and valve gap is tightened on valve body upper end, and valve rod passes from sealing mechanism, and valve rod upper end is contained in In gearhead, gearhead lower end is bolted, and it is characterized in that: described valve body is divided into upper valve body and lower valve body, upper valve body It is threaded connection with lower valve body, and connects by screw bolt and nut is fixing, and fill in the middle of bolt threaded There is sealing ring;Outlet passage is positioned on upper valve body, and water inlet flow channel is positioned on lower valve body;The surface of lower valve body is step-like, by going out Mouthful runner is valve seat erecting bed, first step, sealing ring erecting bed, screw bolt and nut erecting bed successively to periphery, wherein first Step is the highest, and the periphery at first step is provided with screw thread, and the threaded engagement of the corresponding part of upper valve body, valve seat erecting bed with go out Mouth runner is equal;Outlet flow is seated on first step;Described Y shape valve body screw thread connects the import of high temperature and high pressure cut-off valve Runner and outlet flow are oblique lines, and runner forms Y-shaped shape with valve rod direction.
CN201310362106.1A 2013-08-20 2013-08-20 Y shape valve body screw thread connects high temperature and high pressure cut-off valve Active CN103398201B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310362106.1A CN103398201B (en) 2013-08-20 2013-08-20 Y shape valve body screw thread connects high temperature and high pressure cut-off valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310362106.1A CN103398201B (en) 2013-08-20 2013-08-20 Y shape valve body screw thread connects high temperature and high pressure cut-off valve

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CN103398201A CN103398201A (en) 2013-11-20
CN103398201B true CN103398201B (en) 2016-08-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111006024A (en) * 2019-12-11 2020-04-14 南通国电阀门科技有限公司 High-pressure Y-shaped double-acting isolation valve for nuclear power
CN110985715A (en) * 2019-12-11 2020-04-10 南通国电阀门科技有限公司 Y-shaped two-body ball sealing check valve for nuclear power island core

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201715068U (en) * 2009-12-14 2011-01-19 兰州高压阀门有限公司 High-temperature and high-pressure Y-shaped stop valve
CN201884675U (en) * 2010-12-24 2011-06-29 中核苏阀科技实业股份有限公司 Y-shaped cut-off valve
CN202327149U (en) * 2011-11-17 2012-07-11 盐城思达德民力阀门有限公司 Self-sealing stop valve
CN203023503U (en) * 2012-12-08 2013-06-26 河南盛誉实业有限公司 Corrosion-resisting slurry valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193974A (en) * 1982-05-07 1983-11-11 Hitachi Ltd Steam stop valve having centering function
CN201031952Y (en) * 2007-03-08 2008-03-05 南通高中压阀门有限公司 Gear operation Y-type cut-off valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201715068U (en) * 2009-12-14 2011-01-19 兰州高压阀门有限公司 High-temperature and high-pressure Y-shaped stop valve
CN201884675U (en) * 2010-12-24 2011-06-29 中核苏阀科技实业股份有限公司 Y-shaped cut-off valve
CN202327149U (en) * 2011-11-17 2012-07-11 盐城思达德民力阀门有限公司 Self-sealing stop valve
CN203023503U (en) * 2012-12-08 2013-06-26 河南盛誉实业有限公司 Corrosion-resisting slurry valve

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Address after: 226557, Taoyuan West Road, Chengnan street, Rugao City, Jiangsu, Nantong province 1

Patentee after: Nantong State Electric Power Valve Co., Ltd.

Address before: 226557, Taoyuan West Road, Taoyuan Town, Nantong City, Jiangsu, Rugao 1

Patentee before: Nantong State Electric Power Valve Co., Ltd.