CN205715662U - Graphite metal complex sealing ring - Google Patents

Graphite metal complex sealing ring Download PDF

Info

Publication number
CN205715662U
CN205715662U CN201620208444.9U CN201620208444U CN205715662U CN 205715662 U CN205715662 U CN 205715662U CN 201620208444 U CN201620208444 U CN 201620208444U CN 205715662 U CN205715662 U CN 205715662U
Authority
CN
China
Prior art keywords
graphite
ring
piston ring
metal complex
sealing ring
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.)
Active
Application number
CN201620208444.9U
Other languages
Chinese (zh)
Inventor
宋新
宋一新
李红梅
郑红丽
张博
于海波
郑蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARBIN POWER PLANT VALVE CO Ltd
Original Assignee
HARBIN POWER PLANT 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 HARBIN POWER PLANT VALVE CO Ltd filed Critical HARBIN POWER PLANT VALVE CO Ltd
Priority to CN201620208444.9U priority Critical patent/CN205715662U/en
Application granted granted Critical
Publication of CN205715662U publication Critical patent/CN205715662U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

This utility model is a kind of graphite metal complex sealing ring, it is adaptable to balanced type regulation valve, and cylinder etc. needs the movable part that seals, belongs to thermoelectricity, nuclear power valve application.Graphite annulus that graphite metal complex sealing ring is made up of high performance graphite material and the piston ring that stainless steel metal is made form, metallic piston ring height is less than high performance graphite ring height, and it is arranged on inside graphite annulus, the tension force of metallic piston ring and elastic force are supplied to graphite annulus thrust, and graphite annulus is fitted on spigot surface and realizes soft seal function.The beneficial effects of the utility model are: reduce the leakage rate of movable part;Reduce the frictional force between movable part;When being applied to balanced type regulation valve, the leakage class of regulation valve can be improved, reduce the switch force needed for valve.

Description

Graphite metal complex sealing ring
Technical field
This utility model relates to a kind of graphite metal complex sealing ring, belongs to thermoelectricity, nuclear power valve application.
Background technology
Graphite metal complex sealing ring is typically mounted on balanced type regulation valve, and cylinder etc. needs the activity that seals On parts, it is used for ensureing the sealing of movable part upper and lower cavity;Reduce leakage rate when balanced type regulation valve cuts out, improve regulation valve Leakage class, be the strength member that commonly uses on the balanced type regulation parts such as valve and cylinder.
At present, the form using independent piston ring form or independent graphite circle such as balanced type regulation valve and cylinder etc. is come more Control the flowing of medium upper and lower cavity, ensure to seal.But sealing effectiveness is the most undesirable, leak more serious.Because using individually Piston ring form, although the expansion of becket makes to create bigger pressure and acts on spigot surface, but frictional force is the biggest Big increase, movable part often occurs that bite or phenomenon of being failure to actuate, the switch force of regulation valve are also greatly increased;Simultaneously because be metal Hard sealing to metal, sealing effectiveness also can not show a candle to soft seal.Then, the form using filler and graphite circle is had again to seal , although achieve soft seal, but owing to filler and graphite circle do not have elastic force and the tension force of metallic piston ring, produce between movable part Not giving birth to precompressed, therefore, sealing effectiveness is the most bad, can not meet demand.
This utility model uses graphite metal complex sealing ring to solve the problems referred to above.
Summary of the invention
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of graphite metal complex sealing ring, is suitable for Regulate the movable part such as valve and cylinder in balanced type, reduce the amount of flow of movable part upper and lower cavity medium, reduce leakage rate, improve The leakage class of balanced type regulation valve.
For achieving the above object, this utility model provides a kind of graphite metal complex sealing ring, and it includes: (1) no The soft graphite ring that rust steel metallic piston ring, (2) high performance graphite material are made.
Described graphite metal complex sealing ring employing stainless steel metal is piston ring embedded works as at high-performance flexible graphite annulus In, metallic piston ring height is less than high performance graphite ring height.Metallic piston ring has 45 degree of angular cuts, confined state lower cut width Degree is about 1mm;Soft graphite ring has otch for convenience of mounting design, and simultaneously for ensureing sealing property, incision design is mismatch When joint form, metallic piston ring and soft graphite ring are installed together, otch staggers, not on same position.Such design Soft graphite ring is pressed against on movable contact face by tension force and elastic force by metallic piston ring, thus provides sealing force;Flexible stone Mo Huan not only achieves soft seal function, and the high-lubricity of graphite material decreases the coefficient of friction between movable part simultaneously, fall Low frictional force.
The beneficial effects of the utility model are: be applicable to balanced type regulation valve, and cylinder etc. needs the movable part that seals, Reduce leakage rate, improve the leakage class of balanced type regulation valve;Frictional force between parts during minimizing activity, reduces balanced type regulation The switch force of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation that graphite metal complex sealing ring is assemblied in balanced type regulation valve;
Fig. 2 is the sectional view under stainless steel metal piston ring free state;
Fig. 3 is the otch state sectional view after stainless steel metal piston ring loads graphite annulus;
Fig. 4 is soft graphite ring sectional view;
Fig. 5 is graphite metal complex sealing ring sectional view;
In figure: piece number 1. flow guide sleeve, 2. graphite metal complex sealing ring, 3. flap, 4. stainless steel metal piston ring, 5. Soft graphite ring
Detailed description of the invention
In the embodiment shown in fig. 1, first graphite metal complex sealing ring 2 is packed in the cannelure on flap 3, then This molectron is loaded in the throat bushing 1 of valve inner, by moving up and down of flap molectron, the circulating face of control valve It is long-pending, it is achieved thereby that valve is to pressure and the regulation of flow.And in the movement and closing process of flap molectron, graphite metal Complex sealing ring then plays sealing property and greasy property.
Fig. 2 is schematic diagram during stainless steel metal piston ring free state, uses 45 degree of oblique otch, now at rustless steel The effect lower cut gap of elastic force and expansionary force is bigger.
Fig. 3 is the state sectional view that stainless steel metal piston ring loads graphite annulus, now due to the restriction of graphite annulus internal diameter, Piston ring is caused to cut gap the least, so metal is the most elastic and tension force acts on graphite annulus.
Fig. 4 is the sectional view of graphite annulus, for ensureing sealing property, has abandoned the mode of old-fashioned straight cut, and have employed mistake The design of mouth overlap joint.
Fig. 5 be stainless steel metal piston ring embedded enter molectron figure in the middle of soft graphite ring.Now metallic piston ring exists The elastic force radially produced and tension force act on the sealing force defining needs on spigot surface by the transmission of soft graphite ring.Soft Property graphite annulus, due to the high lubricating property of high performance graphite material self and pliability, not only achieves soft seal function but also subtracts Little frictional force, thus ensure that the sealing of upper and lower cavity, reduce leakage rate.

Claims (2)

1. graphite metal complex sealing ring, it is characterised in that: it includes graphite annulus that high performance graphite material makes and stainless The piston ring that steel metal is made;Graphite metal complex sealing ring uses stainless steel metal piston ring embedded at high-performance flexible stone In the middle of Mo Huan;Metallic piston ring has 45 degree of angular cuts, confined state lower cut width to be about 1mm;Soft graphite ring design has Otch, incision design is mismatch joint form, and when metallic piston ring and soft graphite ring are installed together, otch staggers, not same On one position.
Graphite metal complex sealing ring the most according to claim 1, it is characterised in that: metallic piston ring height is less than height Performance graphite annulus height, and be arranged on inside graphite annulus.
CN201620208444.9U 2016-03-12 2016-03-12 Graphite metal complex sealing ring Active CN205715662U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620208444.9U CN205715662U (en) 2016-03-12 2016-03-12 Graphite metal complex sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620208444.9U CN205715662U (en) 2016-03-12 2016-03-12 Graphite metal complex sealing ring

Publications (1)

Publication Number Publication Date
CN205715662U true CN205715662U (en) 2016-11-23

Family

ID=57313468

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620208444.9U Active CN205715662U (en) 2016-03-12 2016-03-12 Graphite metal complex sealing ring

Country Status (1)

Country Link
CN (1) CN205715662U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803466A (en) * 2021-08-10 2021-12-17 安徽天航机电有限公司 Bonding device and bonding method for seal ring assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803466A (en) * 2021-08-10 2021-12-17 安徽天航机电有限公司 Bonding device and bonding method for seal ring assembly

Similar Documents

Publication Publication Date Title
CN102575780B (en) Multi-seal Knife Gate Valve
CN205715662U (en) Graphite metal complex sealing ring
CN201779286U (en) Self-sealing hard double-valve seat with balanced valve spool
CN205173525U (en) Submarine pipeline pair gate valve
CN105650281A (en) Graphite-metal combined sealing ring
CN104482253A (en) Combined valve
CN203202254U (en) Double-eccentric and bidirectional metallic seal butterfly valve
CN105065700A (en) Self-sealing gate valve structure
CN105090607A (en) High-sealing-performance gate valve
CN201034184Y (en) Standing ball valve seat structure
CN204900884U (en) High sealed small -bore gate valve
CN205715716U (en) Low temperature stop valve
CN200946673Y (en) Double-eccentric bi-directional metal seal butterfly valve
CN203500489U (en) Floating valve seat balanced-type high-temperature regulating cutoff valve
CN204312745U (en) A kind of gate valve
CN203516884U (en) Regulating valve with high erosion resistance
CN205446745U (en) Desulfurization special use control valve sealed firmly
CN203477332U (en) Self-sealing stop valve
CN217927191U (en) Triple sealing structure of butterfly valve
CN204114177U (en) Wear-resisting, high pressure resistant metal hard-sealing butterfly valve
CN201443607U (en) bidirectional sealing butterfly valve
CN105782474B (en) Low temperature stop valve
CN216009755U (en) High-performance fluorine-lined gate valve
CN204805588U (en) Ultra -low temperature plate valve
CN205479466U (en) Unsteady ball valve seating structure

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: Hanan Hanan Industrial Park core area three road 150060 Heilongjiang city of Harbin province No. 6

Patentee after: Harbin Power Plant Valve Co., Ltd.

Address before: 150046 Xiangfang City, Harbin Province, the steel pad street, No., No. 1

Patentee before: Harbin Power Plant Valve Co., Ltd.