CN203286062U - Supercritical lifting check valve - Google Patents

Supercritical lifting check valve Download PDF

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Publication number
CN203286062U
CN203286062U CN2013203276387U CN201320327638U CN203286062U CN 203286062 U CN203286062 U CN 203286062U CN 2013203276387 U CN2013203276387 U CN 2013203276387U CN 201320327638 U CN201320327638 U CN 201320327638U CN 203286062 U CN203286062 U CN 203286062U
Authority
CN
China
Prior art keywords
valve
flap
lifting
supercritical
guide rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2013203276387U
Other languages
Chinese (zh)
Inventor
徐永明
胡永祥
郭玉林
赵怀忠
朱祥
Original Assignee
NANTONG STATE ELECTRIC POWER VALVE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANTONG STATE ELECTRIC POWER VALVE CO Ltd filed Critical NANTONG STATE ELECTRIC POWER VALVE CO Ltd
Priority to CN2013203276387U priority Critical patent/CN203286062U/en
Application granted granted Critical
Publication of CN203286062U publication Critical patent/CN203286062U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the field of check valves, in particular to a supercritical lifting check valve. The supercritical lifting check valve comprises a valve body, a valve clack, a valve deck, a self-sealing ring, a compression ring, a four piece ring, a stud, a hexagon nut, a cover plate, an eyebolt, a guide rod and a spring. The supercritical lifting check valve further comprises tubing which is connected to the inlet end of the valve body. The supercritical lifting check valve has the advantages that the design is simple, usage is convenient, zero leakage of a valve sealing surface is realized, the anti-cavitation and anti-scouring capabilities of the valve clack and the valve seat are enhanced, the overall performance of the valve is improved, energy consumption is lowered, work efficiency is improved, the operation of an equipment unit is more reliable, and economic benefits are increased.

Description

Overcritical rise-fall type non-return flap
Technical field
The utility model relates to field of check valves, particularly a kind of overcritical lifting non-return flap.
Background technique
Traditional non-return flap is the valve that can automatically stop fluid to flow backwards, and belongs to check valve.The flap of safety check is opened under fluid pressure action, fluid flows to outlet side from suction side.During lower than outlet side, flap closes automatically to prevent that fluid from flowing backwards under the factor effects such as fluid pressure difference, gravity own when suction side pressure.Safety check (Check Valve): generally be divided into rise-fall type, rotary-open type, butterfly and the Four types such as horizontal.The structure of Lift check valve is general similar to stop valve, and its flap is done elevating movement with line in passage, reliable in action, but fluid resistance is larger, is applicable to light small-bore occasion.But Lift check valve straight-through type and vertical two kinds.The straight-through type lift check valve generally can only be arranged on horizontal pipeline, and vertical lift check valve generally just is arranged on vertical duct.
But, along with the market demand,, in order to reduce energy consumption, increase work efficiency, the some shortcomings of non-return flap are more and more obvious, and the sealing surface seepage of valve for example, the ability of shouldering cavitation and antiscour between flap and valve seat are more and more not enough.
Summary of the invention
In order to solve the above problems, the utility model proposes a kind of overcritical rise-fall type non-return flap, solved valve sealing face zero seepage, improved the anti-cavitation of flap and valve seat and the ability of antiscour, improve overall performance and the use of valve.
, in order to reach the foregoing invention purpose, the utility model proposes following technological scheme:
overcritical rise-fall type non-return flap, it comprises valve body, flap, valve gap, the selfsealings circle, pressure ring, pendant collet, stud bolt, hexagon nut, cover plate, lifting bolt, guide rod and spring, flap is positioned in the middle of valve body, the flap upper end connects guide rod, the guide rod top is pressed with valve gap, and spring housing is arranged in the guide rod upper end, between guide rod and valve gap, selfsealings circle and pressure ring are arranged between outer end and valve body above valve rod, pressure ring is pressed in above the selfsealings circle, the pressure ring top is pendant collet, pendant collet is stuck in groove on valve body, stud bolt and hexagon nut are fixed on the valve body upper end to cover plate, lifting bolt is connected to the cover plate upper end, described overcritical lifting non-return flap also comprises pipe arrangement, described pipe arrangement is connected to the valve body entrance point.On valve, the effect of design pipe arrangement is the reduction energy consumption, raises the efficiency, and makes the equipment unit operation reliable, constantly increases, and increases economic efficiency.
It is 12Cr1MoV that described pipe arrangement adopts material, and described valve body adopts dissimilar steel F91.
Between described pipe arrangement and valve body by being welded together.Welding method is to use welding wire R40 bottoming, welding rod R407 capping, and four kinds of materials are welded into one.
The utility model has the advantages that simplicity of design, easy to use, solved valve sealing face zero seepage, the anti-cavitation of flap and valve seat and the ability of antiscour have been improved, improve the overall performance of valve, reduced energy consumption, improved working efficiency, the equipment unit operation is more reliable, increases economic efficiency.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
for to the utility model further instruction, describe introduction below in conjunction with accompanying drawing: overcritical rise-fall type non-return flap, it comprises valve body 1, flap 2, valve gap 3, selfsealings circle 4, pressure ring 5, pendant collet 6, stud bolt 7, hexagon nut 8, cover plate 9, lifting bolt 10, guide rod 11, spring 12 and pipe arrangement 13, flap is positioned in the middle of valve body, the flap upper end connects guide rod, the guide rod top is pressed with valve gap, and spring housing is arranged in the guide rod upper end, between guide rod and valve gap, selfsealings circle and pressure ring are arranged between outer end and valve body above valve rod, pressure ring is pressed in above the selfsealings circle, the pressure ring top is pendant collet, pendant collet is stuck in groove on valve body, stud bolt and hexagon nut are fixed on the valve body upper end to cover plate, lifting bolt is connected to the cover plate upper end, described pipe arrangement is connected to the valve body entrance point.On valve, the effect of design pipe arrangement is the reduction energy consumption, raises the efficiency, and makes the equipment unit operation reliable, constantly increases, and increases economic efficiency.
It is 12Cr1MoV that described pipe arrangement adopts material, and described valve body adopts dissimilar steel F91.
Between described pipe arrangement and valve body by being welded together.Welding method is to use welding wire R40 bottoming, welding rod R407 capping, and four kinds of materials are welded into one.

Claims (3)

1. overcritical rise-fall type non-return flap, it comprises valve body, flap, valve gap, the selfsealings circle, pressure ring, pendant collet, stud bolt, hexagon nut, cover plate, lifting bolt, guide rod and spring, flap is positioned in the middle of valve body, the flap upper end connects guide rod, the guide rod top is pressed with valve gap, and spring housing is arranged in the guide rod upper end, between guide rod and valve gap, selfsealings circle and pressure ring are arranged between outer end and valve body above valve rod, pressure ring is pressed in above the selfsealings circle, the pressure ring top is pendant collet, pendant collet is stuck in groove on valve body, stud bolt and hexagon nut are fixed on the valve body upper end to cover plate, lifting bolt is connected to the cover plate upper end, it is characterized in that described overcritical lifting non-return flap also comprises pipe arrangement, described pipe arrangement is connected to the valve body entrance point.
2. overcritical lifting non-return flap according to claim 1, is characterized in that it is 12Cr1MoV that described pipe arrangement adopts material, and described valve body adopts dissimilar steel F91.
3. overcritical lifting non-return flap according to claim 1, is characterized in that between described pipe arrangement and valve body by being welded together.
CN2013203276387U 2013-06-07 2013-06-07 Supercritical lifting check valve Expired - Fee Related CN203286062U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203276387U CN203286062U (en) 2013-06-07 2013-06-07 Supercritical lifting check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203276387U CN203286062U (en) 2013-06-07 2013-06-07 Supercritical lifting check valve

Publications (1)

Publication Number Publication Date
CN203286062U true CN203286062U (en) 2013-11-13

Family

ID=49542424

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203276387U Expired - Fee Related CN203286062U (en) 2013-06-07 2013-06-07 Supercritical lifting check valve

Country Status (1)

Country Link
CN (1) CN203286062U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402446A (en) * 2015-11-30 2016-03-16 营口埃斯威特阀门有限公司 Y-shaped lifting type check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402446A (en) * 2015-11-30 2016-03-16 营口埃斯威特阀门有限公司 Y-shaped lifting type check valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

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.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131113

Termination date: 20200607