CN203585322U - Plunger pump gland sealing device for petroleum well cementation and fracturing equipment - Google Patents
Plunger pump gland sealing device for petroleum well cementation and fracturing equipment Download PDFInfo
- Publication number
- CN203585322U CN203585322U CN201320582182.9U CN201320582182U CN203585322U CN 203585322 U CN203585322 U CN 203585322U CN 201320582182 U CN201320582182 U CN 201320582182U CN 203585322 U CN203585322 U CN 203585322U
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- China
- Prior art keywords
- ring
- retainer ring
- cementing
- seal
- sealed department
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- Expired - Lifetime
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a plunger pump gland sealing device for petroleum well cementation and fracturing equipment. A pressure portion is arranged on one side of a gland and used for sealing the gland in a plunger pump in the petroleum well cementation and fracturing equipment; the plunger pump gland sealing device comprises a seal ring body which is of an annular structure, the seal ring body comprises a seal portion, a first retainer ring and a second retainer ring, the seal portion is an annular rubber ring, the section of the seal portion is of a convex structure, a ring of groove structure is arranged on an inner ring side of the seal portion, the first retainer ring and the second retainer ring are arranged on two sides of the convex structure of the seal portion respectively, the side where the first retainer ring is located is far away from the pressure portion, the side where the second retainer ring is near the pressure portion, the outer side of the upper portion of the second retainer ring is of a stepped structure, and the first retainer ring and the second retainer ring are both made of high-strength materials. A structure with the plunger pump gland sealing device is reasonably stressed and has good seal effects, the phenomenon of extrusion of the sealing device due to high pressure or through-going leakage of media can be prevented, and service life is longer.
Description
Technical field
The utility model relates to a kind of gland sealing device, relates in particular to a kind of Cementing and fracturing unit pressing cover of plunger piston pump seal arrangement.
Background technique
Plunger pump in Cementing and fracturing unit, gland place static seal bears high pressure, and bears the corrosion with media such as mud, fracturing fluid, acidic liquids.Some structures of using add the structures such as back-up ring, Y shape circle as O shape circle adds back-up ring, D shape circle, D shape circle, all can occur leakage in various degree in the short time, and seal ring is easily extruded or medium runs through leakage.
Model utility content
The purpose of this utility model is to provide a kind of Cementing and fracturing unit pressing cover of plunger piston pump seal arrangement, so that gland sealing device is not extruded and avoids running through the phenomenon of leakage while bearing high pressure.
To achieve these goals, the utility model provides a kind of Cementing and fracturing unit pressing cover of plunger piston pump seal arrangement, be arranged on the gland place of plunger pump in a Cementing and fracturing unit, in a side of described gland, it is pressure portion, described Cementing and fracturing unit comprise seal ring body with pressing cover of plunger piston pump seal arrangement, wherein:
Described seal ring body is a ring structure, comprises sealed department, the first back-up ring and the second back-up ring;
Described sealed department is a rubber turn, and its cross section is a convex structure, encircles side and be provided with a circle groove structure in described sealed department;
Described the first back-up ring and described the second back-up ring are separately positioned on the both sides of described sealed department convex structure, and described the first back-up ring is arranged on a side far away apart from pressure portion, described the second back-up ring is arranged on the side near pressure portion, and is stepped structure in the outside on described the second back-up ring top; And described the first baffle plate and described second baffle all adopt high-strength material to make.
As preferably, the material of described sealed department is hydrogenated butyronitrile.
As preferably, the material of described the first back-up ring and described the second back-up ring is polyoxymethylene.
The utility model, owing to adopting above technological scheme, has following advantage and good effect:
1) a kind of Cementing that the utility model provides and fracturing unit pressing cover of plunger piston pump seal arrangement, by adopting the first baffle ring and second baffle ring of polyoxymethylene material, polyoxymethylene is high-strength material, can prevent that seal ring body under high pressure being extruded by two-way.
2) a kind of Cementing that the utility model provides and fracturing unit pressing cover of plunger piston pump seal arrangement, the structure that sealed department adopts, because sealed department adopts rubber material, and the groove design of its bottom, while making seal ring be subject to radial compression force, can make the first back-up ring and second back-up ring of both sides upwards lift, the matching gap at gland place is stopped up, make sealed department can not extrude or damage because of high pressure.
3) a kind of Cementing that the utility model provides and fracturing unit pressing cover of plunger piston pump seal arrangement, when this Cementing and fracturing unit are exerted pressure with the pressure portion of pressing cover of plunger piston pump, step-like structure can cushion the pressure on the second back-up ring, and by pressure transfer to sealed department, sealed department is strengthened the seal action power at sealing position, can avoid running through leakage due to what the high pressure that traction flow causes caused simultaneously.
4) a kind of Cementing that the utility model provides and fracturing unit pressing cover of plunger piston pump seal arrangement, the structure stress of seal ring body is reasonable, and sealing effect is better, and the life-span is longer.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of a kind of Cementing of the utility model and fracturing unit pressing cover of plunger piston pump seal arrangement;
Fig. 2 is the structural representation of a kind of Cementing of the utility model and fracturing unit pressing cover of plunger piston pump seal arrangement;
Fig. 3 is the scheme of installation of a kind of Cementing of the utility model and fracturing unit pressing cover of plunger piston pump seal arrangement.
Embodiment
Further illustrate the utility model with specific embodiment with reference to the accompanying drawings.
As shown in accompanying drawing 1-3, a kind of Cementing that the utility model provides and fracturing unit pressing cover of plunger piston pump seal arrangement, be arranged on the gland place of plunger pump in a Cementing and fracturing unit, in a side of gland, it is pressure portion 7, this Cementing and fracturing unit comprise seal ring body 1 with pressing cover of plunger piston pump seal arrangement, seal ring body 1 is a ring structure, comprises sealed department 2, the first back-up ring 3 and the second back-up ring 4; Sealed department 2 is a rubber turn, and its cross section is a convex structure, in the interior ring side of sealed department 2, is provided with a circle groove structure 6; The first back-up ring 3 and the second back-up ring 4 are separately positioned on the both sides of sealed department 2 convex structures, and the first back-up ring 3 is arranged on a side far away apart from the pressure portion 7 of this Cementing and fracturing unit pressing cover of plunger piston pump, the second back-up ring 4 is arranged on the side near the pressure portion 7 of this Cementing and fracturing unit pressing cover of plunger piston pump, and is stepped structure 5 in the outside on the second back-up ring 4 tops.
In the present embodiment, the material of the first back-up ring 3 and the second back-up ring 4 is polyoxymethylene, and polyoxymethylene is high-strength material, can prevent that seal ring body under high pressure being extruded by two-way, and the first back-up ring and the second back-up ring also can adopt other high-strength materials.In the present embodiment, the material of sealed department 2 adopts as preferred hydrogenated butyronitrile, and it has higher tensile strength and medium-resistance, and cost is more reasonable, also can adopt other rubber materials.Seal ring body 1 adopts hydrogenated butyronitrile and polyformaldehyde material to make, and can effectively prevent the corrosion of the media such as mud, fracturing fluid, acidic liquid.
When this Cementing and fracturing unit are exerted pressure with the pressure portion 7 of pressing cover of plunger piston pump, step-like structure 5 can cushion the pressure on the second back-up ring 4, and by pressure transfer to sealed department 2, sealed department 2 is strengthened the seal action power at sealing position, can avoid running through leakage due to what the high pressure that traction flow causes caused simultaneously.The structure that sealed department 2 adopts, because sealed department adopts rubber material, and the groove design of its bottom, while making seal ring be subject to radial compression force, can make the first back-up ring 3 and second back-up ring 4 of both sides upwards lift, the matching gap at gland place is stopped up, made sealed department 2 can not be extruded or damage because of high pressure.Adopt the structure stress of this seal ring body reasonable, sealing effect is better, longer service life.
Above-mentioned disclosed be only specific embodiment of the utility model, this embodiment is only that clearer explanation the utility model is used, and not to restriction of the present utility model, the changes that any person skilled in the art can think of, all should drop in protection domain.
Claims (3)
1. a Cementing and fracturing unit pressing cover of plunger piston pump seal arrangement, be arranged on the gland place of plunger pump in a Cementing and fracturing unit, in a side of described gland, it is pressure portion, it is characterized in that, described Cementing and fracturing unit comprise seal ring body with pressing cover of plunger piston pump seal arrangement, wherein:
Described seal ring body is a ring structure, comprises sealed department, the first back-up ring and the second back-up ring;
Described sealed department is a rubber turn, and its cross section is a convex structure, encircles side and be provided with a circle groove structure in described sealed department;
Described the first back-up ring and described the second back-up ring are separately positioned on the both sides of described sealed department convex structure, and described the first back-up ring is arranged on the described pressure portion of a distance side far away, described the second back-up ring is arranged on the side near described pressure portion, in the outside on described the second back-up ring top, is stepped structure.
2. a kind of Cementing as claimed in claim 1 and fracturing unit pressing cover of plunger piston pump seal arrangement, is characterized in that, the material of described sealed department is hydrogenated butyronitrile.
3. a kind of Cementing as claimed in claim 1 and fracturing unit pressing cover of plunger piston pump seal arrangement, is characterized in that, the material of described the first back-up ring and described the second back-up ring is polyoxymethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582182.9U CN203585322U (en) | 2013-09-22 | 2013-09-22 | Plunger pump gland sealing device for petroleum well cementation and fracturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582182.9U CN203585322U (en) | 2013-09-22 | 2013-09-22 | Plunger pump gland sealing device for petroleum well cementation and fracturing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585322U true CN203585322U (en) | 2014-05-07 |
Family
ID=50583249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582182.9U Expired - Lifetime CN203585322U (en) | 2013-09-22 | 2013-09-22 | Plunger pump gland sealing device for petroleum well cementation and fracturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585322U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360448A (en) * | 2014-11-25 | 2015-02-18 | 苏州新海宜通信科技股份有限公司 | Repeatable-opened cable connector box |
| WO2017036054A1 (en) * | 2015-09-06 | 2017-03-09 | 宝鸡市渭滨区怡鑫金属加工厂 | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method |
| CN107289130A (en) * | 2017-08-04 | 2017-10-24 | 广汉川亿石油科技有限公司 | Cementing and fracturing unit pressing cover of plunger piston pump sealing device |
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
-
2013
- 2013-09-22 CN CN201320582182.9U patent/CN203585322U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360448A (en) * | 2014-11-25 | 2015-02-18 | 苏州新海宜通信科技股份有限公司 | Repeatable-opened cable connector box |
| CN104360448B (en) * | 2014-11-25 | 2018-08-17 | 苏州新海宜通信科技股份有限公司 | A kind of repeatable open cable connector box |
| WO2017036054A1 (en) * | 2015-09-06 | 2017-03-09 | 宝鸡市渭滨区怡鑫金属加工厂 | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method |
| US10851448B2 (en) | 2015-09-06 | 2020-12-01 | Baoji Yixin Metals Product Works | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method |
| CN107289130A (en) * | 2017-08-04 | 2017-10-24 | 广汉川亿石油科技有限公司 | Cementing and fracturing unit pressing cover of plunger piston pump sealing device |
| CN110107247A (en) * | 2019-05-30 | 2019-08-09 | 广州加士特密封技术有限公司 | A kind of slip seals structure |
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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 |
Address after: Building 1, No. 373 Renqing Road, Pudong New Area, Shanghai, 200319 Patentee after: Shanghai Weiwan Sealing Technology Co.,Ltd. Address before: No.3, Lane 1300, Kangqiao East Road, Kangqiao Town, Pudong New Area, Shanghai Patentee before: VONESEALS TECHNOLOGY (SHANGHAI) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |