CN106121553A - A kind of flame retardant type petroleum oil joint - Google Patents
A kind of flame retardant type petroleum oil joint Download PDFInfo
- Publication number
- CN106121553A CN106121553A CN201610670458.7A CN201610670458A CN106121553A CN 106121553 A CN106121553 A CN 106121553A CN 201610670458 A CN201610670458 A CN 201610670458A CN 106121553 A CN106121553 A CN 106121553A
- Authority
- CN
- China
- Prior art keywords
- joint
- box cupling
- petroleum oil
- flame retardant
- retardant type
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Abstract
The invention discloses a kind of flame retardant type petroleum oil joint, including the joint (1) of petroleum oil body be used for being tightly connected the box cupling (2) of joint described in two (1), external screw thread and screw-internal thread fit form primary sealing area (4), the both ends of the surface of described box cupling (2) and the circular bead surface of described groove are secondary sealing area (5), crossover position between described primary sealing area (4) and described secondary sealing area (5) is provided with the 3rd sealing surface (6), described 3rd sealing surface (6) includes the cylinder (11) being arranged on described groove and the sphere (21) being arranged on described box cupling (2), described cylinder (11) and sphere (21) interference fit, described box cupling (2) is surrounded by one layer of inhibiting tape on the connection outer wall of described joint (1), the outside of described inhibiting tape is also surrounded by layer protective layer.The petroleum oil joint tighness of the present invention is good, and service life is long, stable in placement and use safety.
Description
Technical field
The present invention relates to a kind of flame retardant type petroleum oil joint, it is adaptable to connect petroleum oil, belong to petroleum equipment joint
Field.
Background technology
Current petroleum oil joint great majority use traditional API threaded, owing to structure designs, and tradition
Joint often there will be a lot of problem, and the most most importantly sealing property is poor, and petroleum industry can cause the biggest economy
Loss.It addition, the leakage of oil of petroleum oil joint runs into naked light there will be the hidden danger of blast.
Summary of the invention
The technical problem to be solved is to provide a kind of, joint sealing face strong to petroleum oil sealing and is using
During be not easy to be broken and use safe petroleum oil joint；Further, the present invention provides a kind of stable in placement, no
The petroleum oil joint easily rolled；Further, the present invention provides and is not susceptible to thread gluing problem between a kind of box cupling and joint
Petroleum oil joint.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of flame retardant type petroleum oil joint, including the joint of petroleum oil body with for being tightly connected connecing of joint described in two
Hoop, described box cupling axially two ends all symmetries are shaped with female thread, be provided with and be positioned at joint described in two in the middle part of described box cupling inwall
Between mesospore ring, the outer wall of described joint offers the groove for accommodating described box cupling, be provided with in described groove with
The external screw thread of described female thread coupling, the both ends of the surface of described joint all form shoulder, described external screw thread and interior spiral shell with described box cupling
Stricture of vagina cooperatively forms primary sealing area, and the both ends of the surface of described box cupling are secondary sealing area with the circular bead surface of described groove, and described first
Crossover position between sealing surface and described secondary sealing area is provided with the 3rd sealing surface, and described 3rd sealing surface includes being arranged on
Cylinder on described groove and the sphere being arranged on described box cupling, described cylinder sphere interference fit, described shoulder is reverse
Shoulder, described box cupling is surrounded by one layer of inhibiting tape on the connection outer wall of described joint, and the outside of described inhibiting tape is also surrounded by one layer
Protective layer.
The main body of described box cupling is cuboid tubular structure.
The angle of described shoulder is-30oTo-10o。
At the bottom of described female thread and externally threaded tooth and tooth top is respectively provided with rounding.
It is additionally provided with sealing ring between described joint and described mesospore ring.
Described female thread and external screw thread all use 8 teeth or the round thread of 6 teeth.
Beneficial effects of the present invention: a kind of flame retardant type petroleum oil joint that the present invention provides, has three-layer sealed, its
In the 3rd sealing surface be that sphere interference fit on the cylinder and box cupling being arranged on groove is formed, the interference of metal/metal is joined
Close structure and have good sealing effectiveness, simultaneously by sealing spherical design inside female thread, joint in use sealing surface
Being not easy to be broken, extend the service life of joint, described shoulder is reverse shoulder, remains to keep higher under tensile load
Contact pressure, improve sealing effectiveness, the setting of inhibiting tape ensure that the safety of petroleum oil joint, do not haves blast
Hidden danger；The main body of described box cupling can be cuboid tubular structure, it is ensured that petroleum oil joint stable in placement, is difficult to rolling
Dynamic；On described box cupling on female thread and described joint at the bottom of externally threaded tooth and tooth top has rounding, thread compound can be allowed more preferable
Interstitial flow between form of thread, it is ensured that petroleum oil joint is not susceptible to thread gluing.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the present invention.
Fig. 2 is the enlarged drawing of S portion in Fig. 1.
Fig. 3 is the outline drawing of box cupling.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
As it is shown in figure 1, a kind of flame retardant type petroleum oil joint, including the joint 1 of petroleum oil body with for the company of sealing
Connecing the box cupling 2 of joint 1 described in two, described box cupling 2 axially two ends all symmetries are shaped with female thread, in the middle part of described box cupling 2 inwall
The mesospore ring 3 being provided with between joint described in two 1, the outer wall of described joint 1 offers for accommodating described box cupling 2
Groove, is provided with the external screw thread mated with described female thread in described groove, the both ends of the surface of described joint 1 all with described box cupling 2
Form shoulder 7, described external screw thread and screw-internal thread fit and form primary sealing area 4, the both ends of the surface of described box cupling 2 and described groove
Circular bead surface is secondary sealing area 5, and the crossover position between described primary sealing area 4 and described secondary sealing area 5 is provided with the 3rd
Sealing surface 6, described box cupling 2 is surrounded by one layer of inhibiting tape on the connection outer wall of described joint 1, and the outside of described inhibiting tape is also surrounded by
Layer protective layer.
Described box cupling 2 is surrounded by one layer of inhibiting tape on the connection outer wall of described joint 1, and the outside of described inhibiting tape is also surrounded by
Layer protective layer, can avoid petroleum oil joint the hidden danger of blast on fire will not occur and improve the use of petroleum oil joint
Life-span.
As it is shown on figure 3, the main body of described box cupling 1 is cuboid tubular structure, it is ensured that petroleum oil joint is put surely
Fixed, it is difficult to roll.
The angle of described shoulder 7 is-30oTo-10o, as preferably could be arranged to-15o。
On described box cupling 1 on female thread and described joint 2 at the bottom of externally threaded tooth and tooth top has rounding, can allow spiral shell
Stricture of vagina fat preferably interstitial flow between form of thread, improves threaded connection place sealing and lubricity, prevents thread gluing problem.
It is additionally provided with sealing ring between described joint 2 and described mesospore ring 3, is further ensured that sealing effectiveness
State on box cupling 1 external screw thread on female thread and described joint 2 and use 8 teeth or the round thread of 6 teeth.
As in figure 2 it is shown, described 3rd sealing surface 6 includes the cylinder 11 being arranged on described groove and is arranged at described box cupling
Sphere 21 on 2, described cylinder 11 and sphere 21 interference fit, by sealing spherical design inside female thread, joint is using
During sealing surface be not easy to be broken；Described shoulder 7 is reverse shoulder, topmost load when tensile load is sleeve pipe work
One of, reverse shoulder remains to keep higher contact pressure, beneficially oil relative to the reverse shoulder in right angle under tensile load
The raising of the sealing effectiveness of oil pipe.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a flame retardant type petroleum oil joint, it is characterised in that: include the joint (1) of petroleum oil body and be used for the company of sealing
Connecing the box cupling (2) of joint described in two (1), described box cupling (2) axially two ends all symmetries are shaped with female thread, described box cupling (2)
Be provided with the mesospore ring (3) being positioned between joint described in two (1) in the middle part of inwall, the outer wall of described joint (1) offers for
Accommodate the groove of described box cupling (2), in described groove, be provided with the external screw thread mated with described female thread, described joint (1)
Both ends of the surface all form shoulder (7), described external screw thread and screw-internal thread fit and form primary sealing area (4) with described box cupling (2), described
The both ends of the surface of box cupling (2) all form secondary sealing area (5) with the circular bead surface of described groove, and described primary sealing area (4) is with described
Crossover position between secondary sealing area (5) is provided with the 3rd sealing surface (6), and described 3rd sealing surface (6) includes being arranged on institute
State the cylinder on groove (11) and the sphere (21) being arranged on described box cupling (2), described cylinder (11) and sphere (21) interference
Coordinating, described shoulder (7) is reverse shoulder, described box cupling (2) and the connection outer wall of described joint (1) are surrounded by one layer fire-retardant
Band, the outside of described inhibiting tape is also surrounded by layer protective layer.
2. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that the main body of described box cupling (2)
For cuboid tubular structure.
3. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that the angle of described shoulder (7)
For-30oTo-10o。
4. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that described female thread and outer spiral shell
At the bottom of the tooth of stricture of vagina and tooth top is respectively provided with rounding.
5. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that described joint (1) and described
Mesospore ring is additionally provided with sealing ring between (3).
6. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that described female thread and outer spiral shell
Stricture of vagina all uses 8 teeth or the round thread of 6 teeth.
7. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that the material of described inhibiting tape
Including polrvinyl chloride.
8. according to a kind of flame retardant type petroleum oil joint described in claim 1, it is characterised in that the material of described protective layer
Including thin aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670458.7A CN106121553A (en) | 2016-08-16 | 2016-08-16 | A kind of flame retardant type petroleum oil joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670458.7A CN106121553A (en) | 2016-08-16 | 2016-08-16 | A kind of flame retardant type petroleum oil joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121553A true CN106121553A (en) | 2016-11-16 |
Family
ID=57259035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610670458.7A Pending CN106121553A (en) | 2016-08-16 | 2016-08-16 | A kind of flame retardant type petroleum oil joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121553A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69932650T2 (en) * | 1999-01-28 | 2006-12-14 | Halliburton Energy Services, Inc., Duncan | cementing |
| CN201184460Y (en) * | 2008-02-25 | 2009-01-21 | 刘堪金 | Light high pressure fire resistant heat insulation hose assembly |
| CN201496003U (en) * | 2009-08-27 | 2010-06-02 | 江苏胜大石油设备制造有限公司 | Thread connector of special oil sleeve |
| CN202000917U (en) * | 2011-04-25 | 2011-10-05 | 达力普石油专用管有限公司 | Twist-checking shoulder buttress thread oil casing pipe |
| CN203531777U (en) * | 2013-10-11 | 2014-04-09 | 杨林 | High-quality airtight seal oil casing threaded joint |
| CN204312891U (en) * | 2014-12-10 | 2015-05-06 | 攀钢集团成都钢钒有限公司 | Petroleum oil joint |
| CN204904895U (en) * | 2015-09-23 | 2015-12-23 | 四川韦克电缆有限公司 | Insulating fire -retardant fire resisting cable |
| CN206000477U (en) * | 2016-08-16 | 2017-03-08 | 江苏迪威高压科技股份有限公司 | A kind of flame retardant type petroleum oil joint |
-
2016
- 2016-08-16 CN CN201610670458.7A patent/CN106121553A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69932650T2 (en) * | 1999-01-28 | 2006-12-14 | Halliburton Energy Services, Inc., Duncan | cementing |
| CN201184460Y (en) * | 2008-02-25 | 2009-01-21 | 刘堪金 | Light high pressure fire resistant heat insulation hose assembly |
| CN201496003U (en) * | 2009-08-27 | 2010-06-02 | 江苏胜大石油设备制造有限公司 | Thread connector of special oil sleeve |
| CN202000917U (en) * | 2011-04-25 | 2011-10-05 | 达力普石油专用管有限公司 | Twist-checking shoulder buttress thread oil casing pipe |
| CN203531777U (en) * | 2013-10-11 | 2014-04-09 | 杨林 | High-quality airtight seal oil casing threaded joint |
| CN204312891U (en) * | 2014-12-10 | 2015-05-06 | 攀钢集团成都钢钒有限公司 | Petroleum oil joint |
| CN204904895U (en) * | 2015-09-23 | 2015-12-23 | 四川韦克电缆有限公司 | Insulating fire -retardant fire resisting cable |
| CN206000477U (en) * | 2016-08-16 | 2017-03-08 | 江苏迪威高压科技股份有限公司 | A kind of flame retardant type petroleum oil joint |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |