CN205207888U - Low loss valve is with packing - Google Patents
Low loss valve is with packing Download PDFInfo
- Publication number
- CN205207888U CN205207888U CN201520957736.8U CN201520957736U CN205207888U CN 205207888 U CN205207888 U CN 205207888U CN 201520957736 U CN201520957736 U CN 201520957736U CN 205207888 U CN205207888 U CN 205207888U
- Authority
- CN
- China
- Prior art keywords
- graphite
- graphite annulus
- annulus
- convex platform
- 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
Links
Abstract
The utility model relates to a valve especially relates to a low loss valve is with packing with packing. It mainly is that the performance index that solves the sealing filler that prior art exists can't reach the technical problem of supporting valve to the requirements at the higher level of sealing reliability etc. The utility model discloses a graphite annulus (1), graphite annulus (1) for together a plurality of of stack, the both ends of graphite annulus are equipped with a pair of graphite wiper ring (2), the inside of graphite wiper ring is equipped with wire (3).
Description
Technical field
The utility model relates to a kind of valve filler, especially relates to a kind of low loss valve filler.
Background technique
Valve in industrial fluids design, build and in operation, be the more medium transport control apparatus of usage quantity.Fluid runs in the industrial production is important component part, it carry transformation of energy all in my routine work and system management and control, the several functions such as the cut-out of circular flow control, heat energy output input, pipeline medium or connection.The performance requirement of valve and feature thereof are the reliabilities of the working stability that will ensure under its Security used, high temperature and high pressure environment, round-the-clock running.Due to the particularity of Environmental Conditions, certainly will require that valve has good sealing.Only have valve seal reliable, be active in one's movements, just can have intact working life, and safety when can guarantee our manufacturing operation.But the performance index of current stuffing box packing can't reach the requirements at the higher level of mating valve to sealing reliability.
Model utility content
The utility model is to provide a kind of low loss valve filler, and its performance index mainly solving the stuffing box packing existing for prior art can't reach the technical problem of mating valve to the requirements at the higher level of sealing reliability etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Low loss valve filler of the present utility model, comprise graphite annulus, described graphite annulus is be superimposed multiple, the two ends of graphite annulus are provided with a pair graphite wiper ring, the inside of graphite wiper ring is provided with wire, and the edge of graphite annulus upper and lower surface is all provided with the elevation angle, and the elevation angle of graphite annulus upper surface stretches out and is connected with support convex platform, the elevation angle of graphite annulus lower surface extends internally and is connected with support lower convex platform, and the upper surface supporting convex platform is provided with sawtooth.It is wiper ring that the utility model adopts high-purity Expanded graphite to cut open the outer end ring compiling high-temperature alloy silk of band, effectively prevents medium to the erosion damage of sealing main part and scrapes the dirt that dirty stem surface is stained with in time.By supporting the sawtooth of convex platform, can make filler in use, each graphite annulus can be pressed against each other, and sealability is better.The utility model adopts the some high-purity Expanded graphite central ring imitating disc spring profile design with a fixed angle of altitude to join two and scrapes dirty end ring and combine sealing configuration, compress selectively when tools for bolts ' pretension and control the Radial Flow of filler and play the effect of energy storage, under the operating mode of temperature and pressure alternation, carry out effective compensation, realize the self-locking seal function of filler.
As preferably, formed between the support convex platform of described graphite annulus and the support lower convex platform of adjoining graphite ring and oblique cavity is set.The utility model is provided with in graphite annulus top and bottom simultaneously and supports convex platform, supports lower convex platform, and the intermediate portion of adjacent ring is designed to the cavity of certain area, and under identical effect bolt action torque, the distortion of filler increases.Considerably increase pretensioning effect.
As preferably, described graphite annulus includes and is positioned at middle low density graphite annulus, is provided with high-density graphite ring between the both sides up and down of low density graphite annulus and low density graphite annulus.Can make filler in use by the graphite annulus of different densities, sealability is stronger.
The utility model adopts imitative elasticity butterfly spring form design: when applying pretightening force to filler group, the direction that the external diameter of filler is stressed with internal diameter is contrary, the Xing Bian district of packing ring forms S shape and twists change under pretightening force effect, gather a part of song during pressurized and take gesture amount, when the abrasion produced when stem movement or gland pretightening force deficiency, energy storage when previously forcing to submit at this moment discharge, when playing not enough to filler pretightening force or interface sealing loss time compensating action.Wiper ring and combination place of pure graphite annulus up and down in addition, internal-and external diameter designs the breach staggered in two places.Also space is provided with between two groups of pure graphite annuluss.Be on the one hand that the S shape of having held elasticity butterfly spring form is twisted when becoming, change space to its type change energy storage.This axial pretightening makes radial compression mode of texturing straggly in addition, by 140 degree of elevation angle designs, can not destroy the internal structure of forming ring, effectively stop the body seepage of filler group when axial compression radial deformation.
The utility model, according to the height specification of single packing ring and density requirements, selects the compacting of the ripple graphite tape of optimum width to form, and guarantees that pure carbon packing ring product cross section can form the folding wrinkle of best W shape.The filler of such making, in compressibility and rebound degree two indexs, just makes great progress.When pressure medium has fluctuation or thermal oscillation, W shape wrinkle tighten up by medium pressure change or earn out.Same filler mating part when expanding with heat and contract with cold, the also corresponding conversion of W shape wrinkle.The folding wrinkle of the W that this mold pressing is formed, can realize valve packing when running into pressure medium and temperature variation, meet strong then strong, meets weakly to execute weak self-sealing function.
The cavity be provided with between the conical surface that the utility model is provided with by the upper and lower end inner and outer surface of middle some pure Expanded graphite rings and the upper and lower end face of adjacent central ring, under low bolt torque pretension, compress and control the Radial Flow of filler selectively, the pressure between filler group is made to transmit effect increase at double, the reciprocal resistance of valve rod declines to a great extent, and just can reach valve rod being fully fitted together to stuffing box packing interface.
Therefore, the utility model has good compression, rebound elasticity, excellent resistance to gentle sealability, pressure can be eliminated, the impact of temperature variation and mechanical vibration, can under the various harsh conditions of the repeats such as high temperature, low temperature, high vacuum, impact shock, the sealing reliability energy keeping it excellent, simple and reasonable for structure.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is A portion structure for amplifying schematic diagram of Fig. 1.
Component, position and numbering in figure: low density graphite annulus 1, graphite wiper ring 2, wire 3, the elevation angle 4, support convex platform 5, support lower convex platform 6, sawtooth 7, cavity 8, high-density graphite ring 9.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the low loss valve filler of this example, as Fig. 1, comprise graphite annulus, graphite annulus is be superimposed multiple, and the two ends of graphite annulus are provided with a pair graphite wiper ring 2, the inside of graphite wiper ring is provided with wire 3, the edge of graphite annulus 1 upper and lower surface is all provided with the elevation angle 4, and the elevation angle of graphite annulus upper surface stretches out to be connected with and supports convex platform 5, and the elevation angle of graphite annulus lower surface extends internally to be connected with and supports lower convex platform 6, as Fig. 2, the upper surface supporting convex platform is provided with sawtooth 7.Formed between the support convex platform 5 of graphite annulus and the support lower convex platform 6 of adjoining graphite ring and oblique cavity 8 is set.Graphite annulus includes and is positioned at middle low density graphite annulus 1, is provided with high-density graphite ring 9 between the both sides up and down of low density graphite annulus and low density graphite annulus.
During use, the utility model is encased in the valve of medium transport control apparatus.
The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (3)
1. one kind low loss valve filler, comprise graphite annulus, it is characterized in that described graphite annulus is be superimposed multiple, the two ends of graphite annulus are provided with a pair graphite wiper ring (2), the inside of graphite wiper ring is provided with wire (3), the edge of graphite annulus (1) upper and lower surface is all provided with the elevation angle (4), the elevation angle of graphite annulus upper surface stretches out to be connected with and supports convex platform (5), the elevation angle of graphite annulus lower surface extends internally to be connected with and supports lower convex platform (6), and the upper surface supporting convex platform is provided with sawtooth (7).
2. low loss valve filler according to claim 1, is characterized in that being formed between the support convex platform (5) of described graphite annulus (1) and the support lower convex platform (6) of adjoining graphite ring and obliquely arranges cavity (8).
3. low loss valve filler according to claim 2, is characterized in that described graphite annulus includes and is positioned at middle low density graphite annulus (1), be provided with high-density graphite ring (9) between the both sides up and down of low density graphite annulus and low density graphite annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957736.8U CN205207888U (en) | 2015-11-26 | 2015-11-26 | Low loss valve is with packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957736.8U CN205207888U (en) | 2015-11-26 | 2015-11-26 | Low loss valve is with packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207888U true CN205207888U (en) | 2016-05-04 |
Family
ID=55845605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520957736.8U Active CN205207888U (en) | 2015-11-26 | 2015-11-26 | Low loss valve is with packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061855A (en) * | 2017-05-17 | 2017-08-18 | 南通艾迈特机械有限公司 | A kind of valve output shaft seal structure |
| WO2022083285A1 (en) * | 2020-10-20 | 2022-04-28 | 吴忠仪表有限责任公司 | Straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure |
-
2015
- 2015-11-26 CN CN201520957736.8U patent/CN205207888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061855A (en) * | 2017-05-17 | 2017-08-18 | 南通艾迈特机械有限公司 | A kind of valve output shaft seal structure |
| WO2022083285A1 (en) * | 2020-10-20 | 2022-04-28 | 吴忠仪表有限责任公司 | Straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205207888U (en) | Low loss valve is with packing | |
| CN204879013U (en) | Low temperature pneumatic ball valve packing structure | |
| CN202195054U (en) | I-shaped damping seal ring | |
| CN206682296U (en) | Shelving sealing ring | |
| CN204493780U (en) | Separable type Integral ball hard seal fixing ball valve | |
| CN201531675U (en) | Combined packing ring used for low-leakage valve | |
| CN203948678U (en) | The box-like sealing configuration of a kind of valve sets | |
| CN201121705Y (en) | Sealing ring | |
| CN204716983U (en) | A kind of axle sealing structure | |
| CN200986039Y (en) | Elastica concentric high-temperature metallic sealed ball valve | |
| CN207584072U (en) | High platform hard seal ball valve | |
| CN208871052U (en) | A kind of metal sealing valve seat of superhigh temperature | |
| CN102747962A (en) | High-sealing roller bit | |
| CN205937799U (en) | Sealing ring | |
| CN112576849A (en) | Double-sealed-cavity sealing structure and sleeve compensator adopting same | |
| CN202560543U (en) | Adaptive sealing device of high-pressure plunger pump | |
| CN202812207U (en) | Seal structure of dumper oil cylinder | |
| CN203880277U (en) | Novel flange gasket | |
| CN206512571U (en) | The valve body of combined type dabbing machine | |
| CN206972965U (en) | A kind of double graphite hard seal ball valves of low torque all-metal | |
| CN205806743U (en) | A kind of Ifold flange of band dedusting function | |
| CN206668769U (en) | A kind of Novel sealing ring | |
| CN203067917U (en) | Flexible graphite packing used for nuclear-grade valve | |
| CN205745828U (en) | Pipeline whirl compensator | |
| CN201041088Y (en) | Closed type piston ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170309 Address after: 311255 Hangzhou Town, Xiaoshan District, Zhejiang, Pu Yang Town, Taoyuan Patentee after: Zhejiang Guotai Xiao Xing sealing material Limited by Share Ltd Address before: 311255 Zhejiang, Xiaoshan City, the town of Yang Yang Lake Village Patentee before: Guotai Seal Material Co., Ltd., Zhejiang Prov. |
|
| TR01 | Transfer of patent right |