CN204627964U - A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment - Google Patents
A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment Download PDFInfo
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- CN204627964U CN204627964U CN201520280966.5U CN201520280966U CN204627964U CN 204627964 U CN204627964 U CN 204627964U CN 201520280966 U CN201520280966 U CN 201520280966U CN 204627964 U CN204627964 U CN 204627964U
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- seal body
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- fracturing pump
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- high impact
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Abstract
The utility model discloses a kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment, comprise seal body and be separately positioned on the back-up ring of seal body top and bottom, seal body top and bottom are positioned at inner side and are equipped with protruding shoulder side, form shoulder block between shoulder side and seal body, each back-up ring to be all placed on shoulder block and to match with shoulder side.The mode that this Assembled sealer being applied to fracturing pump high frequency HI high impact environment adopts back-up ring and seal body to combine, each back-up ring is placed between each shoulder block and shoulder side, time stressed, back-up ring is subject to the radial force of axial force and seal body compression simultaneously, makes the contact of back-up ring and casing wall tightr, gap is less, shoulder side directly contacts with plunger, and better, the seal body upset that is not easily distorted is extruded for the sealability of product, stopped to chew phenomenon, anti-high voltagehigh frequency high impact property is good.The utility model is applicable to Sealing field.
Description
Technical field
The utility model relates to Sealing field, particularly relates to a kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment.
Background technique
At present, fracturing pump is that pressure break, acidizing treatment are carried out in oil field, improves the visual plant of oil and gas production, the quality of fracturing pump end bracket enclosed part performance and working life, directly has influence on usability and the quality of fracturing pump.In high frequency HI high impact fracturing pump, the to-and-fro motion speed of plunger up to 400 ~ 500 punchings/point, pressure is up to more than 105MPa, very high to the requirement of fracturing pump end bracket enclosed part.Originally fracturing pump end bracket enclosed part, major part adopts O type rubber ring or O type circle to add back-up ring as Sealing, and these two kinds of Sealings are under high-pressure situations, and easy compressive deformation, causes revealing generation; High voltagehigh frequency work repeatedly, Sealing is easily distorted upset, and rubber is easily extruded in seal clearance and squeeze-out phenomenon occurs, and is easily chewed or bites; The equilibrant force of back-up ring is not enough, and easily cause middle rubber that gap occurs and extrude, seal durability is short, and replacement frequency is large.Therefore, traditional sealing means can not meet usage requirement, urgently a kind of Sealing of applicable high frequency HI high impact environment.
Model utility content
For solving the problem, the utility model provides a kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment of anti-torsion anti-extrusion good seal.
The utility model solves the technological scheme that its technical problem adopts:
A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment, comprise seal body, seal body is positioned at inner side and is equipped with protruding shoulder side up and down, seal body being positioned at each shoulder side other is L shape shoulder block, each shoulder block is equipped with back-up ring, and back-up ring matches with shoulder side.
Be further used as the improvement of technical solutions of the utility model, seal body is also provided with the sealing lip of arc between upper and lower back-up ring.
Be further used as the improvement of technical solutions of the utility model, sealing lip maximum outside diameter is greater than each back-up ring external diameter.
Be further used as the improvement of technical solutions of the utility model, the middle inside of seal body is provided with arc groove.
Be further used as the improvement of technical solutions of the utility model, seal body is interference fit with coordinating of each back-up ring.
Be further used as the improvement of technical solutions of the utility model, the sectional shape of seal body is the T-shaped of rotated ninety degrees.
Be further used as the improvement of technical solutions of the utility model, the material of back-up ring is engineering plastics, and engineering plastics are teflon stuffing or polyoxymethylene or polyether-ether-ketone or nylon or polyimide or polybenzoate or teflon.
Be further used as the improvement of technical solutions of the utility model, teflon stuffing is the copper powder containing 15% ~ 60% mass fraction and/or the glass fibre containing 10% ~ 40% mass fraction and/or containing the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.
Be further used as the improvement of technical solutions of the utility model, the shore D type hardness tester of engineering plastics is between 60 ~ 95.
Be further used as the improvement of technical solutions of the utility model, the material of seal body is carbon black-filled nitrile butadiene rubber or hydrogenated nitrile-butadiene rubber or fluorine rubber, and the Shao Er A type hardness tester of seal body is between 85 ~ 95.
The beneficial effects of the utility model: the mode that this Assembled sealer being applied to fracturing pump high frequency HI high impact environment adopts back-up ring and seal body to combine, each back-up ring is placed between each shoulder block and shoulder side, time stressed, back-up ring is subject to the radial force of axial force and seal body compression simultaneously, make the contact of back-up ring and casing wall tightr, gap is less, shoulder side directly contacts with plunger, the sealability of product is better, the seal body upset that is not easily distorted is extruded, stopped to chew phenomenon, anti-high voltagehigh frequency high impact property is good.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment overall structure schematic diagram.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.
With reference to Fig. 1, the utility model is a kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment, comprise seal body 1, seal body 1 is positioned at inner side and is equipped with protruding shoulder side 6 up and down, seal body 1 being positioned at each shoulder side 6 other is L shape shoulder block 5, each shoulder block 5 is equipped with back-up ring 2, and back-up ring 2 matches with shoulder side 6.
The mode that this Assembled sealer being applied to fracturing pump high frequency HI high impact environment adopts back-up ring 2 and seal body 1 to combine, each back-up ring 2 is placed between each shoulder block 5 and shoulder side 6, time stressed, back-up ring 2 is subject to the radial force of axial force and seal body 1 compression simultaneously, make back-up ring 2 tightr with the contact of casing wall, gap is less, shoulder side 6 directly contacts with plunger, the sealability of product is better, seal body 1 upset that is not easily distorted is extruded, stopped to chew phenomenon, anti-high voltagehigh frequency high impact property is good.
As the utility model preferred embodiment, seal body 1 is also provided with the sealing lip 4 of arc between upper and lower back-up ring 2.
As the utility model preferred embodiment, sealing lip 4 maximum outside diameter is greater than each back-up ring 2 external diameter.
The sealed lip of seal body 1 adopts mild arc shaped surface, adds the area of contact with inwall, improves sealability.
As the utility model preferred embodiment, the middle inside of seal body 1 is provided with arc groove 3.
There is an arc groove inner side of seal body 1, reduces the plot ratio of the rubber of seal body 1, prevents rubber excessive compression under high pressure damaged, is also conducive to the installation of product simultaneously; When being under pressure, special arc groove can make rubber produce a radial force to the inside wall of cylinder, and what the seal lip of rubber was contacted with the inside wall of cylinder is tightr, thus improves the sealability of product.
As the utility model preferred embodiment, seal body 1 is interference fit with coordinating of each back-up ring 2.
As the utility model preferred embodiment, the sectional shape of seal body 1 is the T-shaped of rotated ninety degrees.
As the utility model preferred embodiment, the material of back-up ring 2 is engineering plastics, and engineering plastics are teflon stuffing or polyoxymethylene or polyether-ether-ketone or nylon or polyimide or polybenzoate or teflon.
As the utility model preferred embodiment, teflon stuffing is the copper powder containing 15% ~ 60% mass fraction and/or the glass fibre containing 10% ~ 40% mass fraction and/or containing the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.
The preferred implementation one of teflon stuffing, teflon stuffing is the copper powder filled polytetrafluoroethylene containing 15% ~ 60% mass fraction.Make product have excellent wear-resistant, creep-resistant property, resistant of high or low temperature, high pressure resistant, wear resistance is the hundreds of times of pure teflon, and adaptive temperature scope is wide.
The preferred implementation two of teflon stuffing, teflon stuffing is the glass fibre filled polytetrafluoroethylene containing 10% ~ 40% mass fraction.Make the gap shrinks between packing, obtained densify, corrosion-resistant, wear-resistant.
The preferred implementation three of teflon stuffing, containing the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.Improve the wear resistance of product, thermal conductivity and chemical resistance, greasy property is good.
The preferred implementation four of teflon stuffing, teflon stuffing is the PTFE Filled with Carbon Fiber comprising the copper powder of 15% ~ 60% mass fraction and the glass fibre of 10% ~ 40% mass fraction and 10% ~ 40% mass fraction.
The preferred implementation five of teflon stuffing, teflon stuffing is comprise the copper powder of 15% ~ 60% mass fraction and the glass fibre filled polytetrafluoroethylene of 10% ~ 40% mass fraction.
The preferred implementation six of teflon stuffing, teflon stuffing is comprise the copper powder of 15% ~ 60% mass fraction and the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.
The preferred implementation seven of teflon stuffing, teflon stuffing is comprise the glass fibre of 10% ~ 40% mass fraction and the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.
As the utility model preferred embodiment, the shore D type hardness tester of engineering plastics is between 60 ~ 95.
Back-up ring uses engineering plastics, utilizes the plastics of high hardness, high strength, high-modulus as back-up ring, and anti-voltage resistance good, when high pressure comes, deformation is less likely to occur product, squeeze-out phenomenon can not occur, not easily reveal.
As the utility model preferred embodiment, the material of seal body 1 is carbon black-filled nitrile butadiene rubber or hydrogenated nitrile-butadiene rubber or fluorine rubber, and the Shao Er A type hardness tester of seal body 1 is between 85 ~ 95.
Adopt the back-up ring 2 of plastics and the mode of building rubber compound, and the back-up ring 2 of plastics is placed in shoulder block 5 place of rubber, special D type composite structure makes product that distortion upset be less likely to occur, can not chew or bite phenomenon, the rubber that shoulder both sides, side 6 have good stress retentivity directly contacts with plunger both sides, make the sealability of product better, when being subject to extraneous pressure, the back-up ring 2 of plastics not only receives the axial force from rubber, but also be subject to the radial force of rubber extruded, make back-up ring 2 tightr with the contact of inwall, gap is less, product has better sealability, longer service life.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (10)
1. one kind is applied to the Assembled sealer of fracturing pump high frequency HI high impact environment, it is characterized in that: comprise seal body (1), described seal body (1) is positioned at inner side and is equipped with protruding shoulder side (6) up and down, described seal body (1) is positioned at the other shoulder block (5) for L shape of each described shoulder side (6), each described shoulder block (5) is equipped with back-up ring (2), and described back-up ring (2) matches with shoulder side (6).
2. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 1, it is characterized in that: described seal body (1) is positioned at the sealing lip (4) being also provided with arc between upper and lower back-up ring (2).
3. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 2, it is characterized in that: described sealing lip (4) maximum outside diameter is greater than each back-up ring (2) external diameter.
4. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 1, it is characterized in that: the middle inside of described seal body (1) is provided with arc groove (3).
5. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 1, it is characterized in that: described seal body (1) is interference fit with coordinating of each described back-up ring (2).
6. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 1, it is characterized in that: the sectional shape of described seal body (1) is the T-shaped of rotated ninety degrees.
7. according to the Assembled sealer being applied to fracturing pump high frequency HI high impact environment in claim 1 ~ 6 described in any one, it is characterized in that: the material of described back-up ring (2) is engineering plastics, described engineering plastics are teflon stuffing or polyoxymethylene or polyether-ether-ketone or nylon or polyimide or polybenzoate or teflon.
8. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 7, it is characterized in that: described teflon stuffing is the copper powder containing 15% ~ 60% mass fraction and/or the glass fibre containing 10% ~ 40% mass fraction and/or containing the PTFE Filled with Carbon Fiber of 10% ~ 40% mass fraction.
9. be applied to the Assembled sealer of fracturing pump high frequency HI high impact environment according to claim 7, it is characterized in that: the shore D type hardness tester of described engineering plastics is between 60 ~ 95.
10. according to the Assembled sealer being applied to fracturing pump high frequency HI high impact environment in claim 1 ~ 6 described in any one, it is characterized in that: the material of described seal body (1) is carbon black-filled nitrile butadiene rubber or hydrogenated nitrile-butadiene rubber or fluorine rubber, and the Shao Er A type hardness tester of described seal body (1) is between 85 ~ 95.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280966.5U CN204627964U (en) | 2015-04-30 | 2015-04-30 | A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280966.5U CN204627964U (en) | 2015-04-30 | 2015-04-30 | A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627964U true CN204627964U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520280966.5U Active CN204627964U (en) | 2015-04-30 | 2015-04-30 | A kind of Assembled sealer being applied to fracturing pump high frequency HI high impact environment |
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| Country | Link |
|---|---|
| CN (1) | CN204627964U (en) |
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2015
- 2015-04-30 CN CN201520280966.5U patent/CN204627964U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: No. 1 Xinyu North Road, Ningxi Street, Zengcheng District, Guangzhou City, Guangdong Province, 510000 Patentee after: GUANGZHOU JST SEALS TECHNOLOGY Co.,Ltd. Address before: 510530 block B, 718 Kaichuang Avenue, Guangzhou hi tech Industrial Development Zone, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU JST SEALS TECHNOLOGY Co.,Ltd. |