CN107289130A - Cementing and fracturing unit pressing cover of plunger piston pump sealing device - Google Patents
Cementing and fracturing unit pressing cover of plunger piston pump sealing device Download PDFInfo
- Publication number
- CN107289130A CN107289130A CN201710660258.8A CN201710660258A CN107289130A CN 107289130 A CN107289130 A CN 107289130A CN 201710660258 A CN201710660258 A CN 201710660258A CN 107289130 A CN107289130 A CN 107289130A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing device
- fracturing unit
- piston pump
- sealing
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses Cementing and fracturing unit pressing cover of plunger piston pump sealing device, including gland, the gland is connected by flange and fracturing unit, the flange both sides are respectively provided with sealing device, the sealing device includes rubber seal, the rubber seal both sides are respectively provided with stainless steel component, and this has anticorrosive coat in the stainless steel component outside, and the anticorrosive coat thickness is 1CM.The stainless steel component is conisphere face, and the rubber seal is the conical surface matched.The flange hole sets flexible glue layer.Flexible glue layer is a cyclic structure, including sealing, the first back-up ring and the second back-up ring.The sealing is a rubber turn, and its section is a convex structure, in the sealing inner ring side provided with a circle groove structure.First back-up ring and second back-up ring are separately positioned on the both sides of the sealing convex structure.
Description
Technical field
The present invention relates to a kind of pressing cover of plunger piston pump sealing device, and in particular to Cementing is pumped with fracturing unit with plunger
Cap sealing.
Background technology
Burning source of the gas in people's life is roughly divided into liquefied petroleum gas, artificial coal gas, natural gas three major types.It main
Composition has ethene, ethane, propylene, propane and butane etc., and be in a liquid state shape in gas cylinder, once outflow can be vaporized into it is bigger than original volume
About 200 fiftyfold fuel gas, and easily spread, running into naked light will burn or explode.Therefore, also using liquefied gas
Pay special attention to.Coal gas be with the solid material such as coal or coke, it is obtained through destructive distillation or vaporization, its main component have carbon monoxide,
Methane and hydrogen etc..Therefore, coal gas is poisonous, it is easy to air formation explosive mixture, and hig diligence should be caused when using.
Natural gas broad sense refers to the general name for burying the gas of self-assembling formation in stratum.But commonly called natural gas only refers to storage
A kind of fuel gas rich in hydrocarbon of stratum deeper part is stored in, and oil field companion is frequently referred to the natural gas of oil symbiosis
It is angry.Natural gas is transformed by the organic substance before 1 years, and main component is methane, is formed further according to different geology
Condition, the still low-carbon alkanes such as the ethane containing varying number, propane, butane, pentane, hexane and carbon dioxide, nitrogen, hydrogen
The non-hydrocarbonaceous materials such as gas, sulfide；Also contain helium in some gas fields.Natural gas is a kind of important energy, is widely used as city
City's coal gas and industrial fuel, in seventies world energy consumption, natural gas accounts for 18%~19%.Natural gas is also important
Industrial chemicals.
Static seal bears high pressure at Cementing and the plunger pump in fracturing unit, gland, and bears to carry mud, pressure break
The corrosion of the media such as liquid, acidic liquid.Some structures such as O-ring plus back-up ring, D-shaped circle, D-shaped circle plus back-up ring, Y shape circle for using etc.
Structure, different degrees of leakage can occurs, sealing ring is easily extruded or medium is through leakage in the short time.
The content of the invention
The technical problems to be solved by the invention are that static seal is held at Cementing and the plunger pump in fracturing unit, gland
By high pressure, and bear the corrosion with media such as mud, fracturing fluid, acidic liquids, it is therefore intended that provide Cementing and pressure break
Equipment pressing cover of plunger piston pump sealing device, solves static seal at Cementing and the plunger pump in fracturing unit, gland and bears height
The problem of pressing, and bear with corrosion of medium such as mud, fracturing fluid, acidic liquids.
The present invention is achieved through the following technical solutions：
Cementing and fracturing unit pressing cover of plunger piston pump sealing device, including gland, the gland pass through flange and pressure
Equipment connection is split, the flange both sides are respectively provided with sealing device, and the sealing device includes rubber seal, the rubber seal
Circle both sides are respectively provided with stainless steel component, and this has anticorrosive coat in the stainless steel component outside, and the anticorrosive coat thickness is 1CM.Using
Two kinds of materials be combined, rationally using respective characteristic, using the hardness and the sealing of rubber of stainless steel, pass through stainless steel
The flap of steel toe, rubber seal valve and stainless steel inner core composition solves the deficiency of traditional problem.
The stainless steel component is conisphere face, and the rubber seal is the conical surface matched.Further, as the present invention
Preferred scheme.
The flange hole sets flexible glue layer.Further, as the preferred scheme of the present invention.
Flexible glue layer is a cyclic structure, including sealing, the first back-up ring and the second back-up ring.Further, it is used as this
The preferred scheme of invention.
The sealing is a rubber turn, and its section is a convex structure, is set in the sealing inner ring side
There is a circle groove structure.Further, as the preferred scheme of the present invention.
First back-up ring and second back-up ring are separately positioned on the both sides of the sealing convex structure, and institute
State the first back-up ring and be arranged on side apart from the pressure portion farther out, second back-up ring is positioned close to the one of the pressure portion
Side, is stepped structure in the outside on the second back-up ring top, further, is used as the preferred scheme of the present invention.
The present invention compared with prior art, has the following advantages and advantages：
1st, Cementing and fracturing unit pressing cover of plunger piston pump sealing device of the present invention, is connected using three parts, stainless
Steel material, rubber improve rigidity, while also ensure that sealing effectiveness；
2nd, Cementing and fracturing unit pressing cover of plunger piston pump sealing device of the present invention, by using the of polyformaldehyde material
One baffle ring and the second baffle ring, polyformaldehyde is high-strength material, can prevent sealing ring body under high pressure by two-way extrusion；
3rd, Cementing and fracturing unit pressing cover of plunger piston pump sealing device of the present invention, the structure that sealing is used, by
Elastomeric material is used in sealing, and the groove design of its bottom, when the sealing ring is radially compressed power, can make the of both sides
One back-up ring and the second back-up ring are lifted up, and the fit clearance at gland is blocked, sealing is not extruded or is damaged because of high pressure
It is bad.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, to present invention work
Further to describe in detail, exemplary embodiment and its explanation of the invention is only used for explaining the present invention, is not intended as to this
The restriction of invention.
Embodiment
Cementing of the present invention and fracturing unit pressing cover of plunger piston pump sealing device, including gland, the gland pass through method
Blue and fracturing unit connection, the flange both sides are respectively provided with sealing device, and the sealing device includes rubber seal, the rubber
Glue sealing ring both sides are respectively provided with stainless steel component, and this has anticorrosive coat in the stainless steel component outside, and the anticorrosive coat thickness is
1CM.The stainless steel component is conisphere face, and the rubber seal is the conical surface matched.The flange hole sets flexible glue layer.
Flexible glue layer is a cyclic structure, including sealing, the first back-up ring and the second back-up ring.The sealing is a ring-shaped rubber
Circle, and its section is a convex structure, in the sealing inner ring side provided with a circle groove structure.First back-up ring and
Second back-up ring is separately positioned on the both sides of the sealing convex structure, and first back-up ring is arranged on described in distance
The side of pressure portion farther out, second back-up ring is positioned close to the side in the pressure portion, on the second back-up ring top
Outside is stepped structure.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (6)
1. Cementing and fracturing unit pressing cover of plunger piston pump sealing device, including gland, it is characterised in that：The gland passes through
Flange and fracturing unit connection, the flange both sides are respectively provided with sealing device, and the sealing device includes rubber seal, described
Rubber seal both sides are respectively provided with stainless steel component, and this has anticorrosive coat in the stainless steel component outside, and the anticorrosive coat thickness is
1CM。
2. Cementing according to claim 1 and fracturing unit pressing cover of plunger piston pump sealing device, it is characterised in that：Institute
Stainless steel component is stated for conisphere face, the rubber seal is the conical surface matched.
3. Cementing according to claim 1 and fracturing unit pressing cover of plunger piston pump sealing device, it is characterised in that：Institute
State flange hole and flexible glue layer is set.
4. Cementing according to claim 3 and fracturing unit pressing cover of plunger piston pump sealing device, it is characterised in that：Institute
Flexible glue layer is stated for a cyclic structure, including sealing, the first back-up ring and the second back-up ring.
5. Cementing according to claim 4 and fracturing unit pressing cover of plunger piston pump sealing device, it is characterised in that：Institute
Sealing is stated for a rubber turn, and its section is a convex structure, in the sealing inner ring side provided with a circle groove
Structure.
6. Cementing according to claim 1 and fracturing unit pressing cover of plunger piston pump sealing device, it is characterised in that：Institute
State the first back-up ring and second back-up ring is separately positioned on the both sides of the sealing convex structure, and first back-up ring
The side farther out apart from the pressure portion is arranged on, second back-up ring is positioned close to the side in the pressure portion, described
The outside on the second back-up ring top is stepped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660258.8A CN107289130A (en) | 2017-08-04 | 2017-08-04 | Cementing and fracturing unit pressing cover of plunger piston pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660258.8A CN107289130A (en) | 2017-08-04 | 2017-08-04 | Cementing and fracturing unit pressing cover of plunger piston pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107289130A true CN107289130A (en) | 2017-10-24 |
Family
ID=60105163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660258.8A Pending CN107289130A (en) | 2017-08-04 | 2017-08-04 | Cementing and fracturing unit pressing cover of plunger piston pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289130A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0505352A1 (en) * | 1991-03-21 | 1992-09-23 | Böhler Hochdrucktechnik Gmbh | Sealing device for movable parts of high pressure arrangements |
| CN201129293Y (en) * | 2007-10-24 | 2008-10-08 | 天津市润泽高压泵制造有限公司 | High-power high-pressure plunger pump lubricating system dynamic seal apparatus |
| CN103438213A (en) * | 2013-08-22 | 2013-12-11 | 上海清河机械有限公司 | Sealing piece structure |
| CN203585322U (en) * | 2013-09-22 | 2014-05-07 | 上海唯万密封科技有限公司 | Plunger pump gland sealing device for petroleum well cementation and fracturing equipment |
| CN203906785U (en) * | 2014-04-15 | 2014-10-29 | 合肥华升泵阀股份有限公司 | Packing seal structure |
-
2017
- 2017-08-04 CN CN201710660258.8A patent/CN107289130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0505352A1 (en) * | 1991-03-21 | 1992-09-23 | Böhler Hochdrucktechnik Gmbh | Sealing device for movable parts of high pressure arrangements |
| CN201129293Y (en) * | 2007-10-24 | 2008-10-08 | 天津市润泽高压泵制造有限公司 | High-power high-pressure plunger pump lubricating system dynamic seal apparatus |
| CN103438213A (en) * | 2013-08-22 | 2013-12-11 | 上海清河机械有限公司 | Sealing piece structure |
| CN203585322U (en) * | 2013-09-22 | 2014-05-07 | 上海唯万密封科技有限公司 | Plunger pump gland sealing device for petroleum well cementation and fracturing equipment |
| CN203906785U (en) * | 2014-04-15 | 2014-10-29 | 合肥华升泵阀股份有限公司 | Packing seal structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |
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| RJ01 | Rejection of invention patent application after publication |