CN105953006B - Quick coupling and quick coupling and the connection method of non-metal composite pipe - Google Patents
Quick coupling and quick coupling and the connection method of non-metal composite pipe Download PDFInfo
- Publication number
- CN105953006B CN105953006B CN201610503810.8A CN201610503810A CN105953006B CN 105953006 B CN105953006 B CN 105953006B CN 201610503810 A CN201610503810 A CN 201610503810A CN 105953006 B CN105953006 B CN 105953006B
- Authority
- CN
- China
- Prior art keywords
- metal composite
- composite pipe
- neck bush
- quick coupling
- outer cuff
- 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.)
- Expired - Fee Related
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of quick coupling and quick coupling and the connection method quick coupling of non-metal composite pipe, quick coupling includes neck bush and outer cuff；The outer diameter of the neck bush is become larger by both ends to middle part, and the left and right ends of neck bush, which are respectively used to insert, is pressed into non-metal composite pipe, and neck bush slightly supports the non-metal composite pipe internal diameter being in contact with neck bush greatly；Outer cuff is the outer cuff of split type, and the internal diameter of outer cuff is gradually reduced from center to both ends；Outer hoop set is pressed with the non-metal composite pipe of neck bush, and be interference fitted between non-metal composite pipe for being sleeved on to insert, and non-metal composite pipe and neck bush are compressed, and big one end of internal diameter of outer cuff is close to neck bush middle part.The present invention can realize that non-metal composite pipe tube body directly, simply connects, and can realize good sealing effect.
Description
Technical field
The invention belongs to oil gas field, mine, chemical production technical fields, are related to a kind of the quick of non-metal composite pipe connection
Joint technique scheme, and in particular to a kind of quick coupling and quick coupling and the connection method of non-metal composite pipe.
Background technology
In oil gas field, mining and Chemical Manufacture, in order to solve medium to damages such as the corrosion, wears of steel pipe, more
Carry out more selection non-metal composite pipes.Conventional non-metallic multiple tube connection using flange head form, and flange head with it is non-
Metal composite pipe tube body connects complicated, and cost is higher.The length that factory can be provided non-metal composite pipe is limited
, it for the pipeline of some relatively long distances, needs much to save non-metal composite pipe and is formed by connecting, such non-metal composite pipe is every
Section is required for flange head, and pipeline construction is inconvenient.
Invention content
The present invention is the convenience of non-metal composite pipe pipeline construction, designs the quick coupling of non-metal composite pipe connection,
Realize that non-metal composite pipe tube body directly, simply connects.
Technical scheme is as follows：
A kind of method that quick coupling is connected with non-metal composite pipe, quick coupling include neck bush and outer cuff；It is described
The outer diameter of neck bush is become larger by both ends to middle part, and the left and right ends of neck bush, which are respectively used to insert, is pressed into non-metal composite pipe,
Neck bush slightly supports the non-metal composite pipe internal diameter being in contact with neck bush greatly；Outer cuff is the outer cuff of split type, outer cuff
Internal diameter is gradually reduced from center to both ends；Outer hoop set is pressed with the non-metal composite pipe of neck bush for being sleeved on to insert, and with non-gold
Belong to and being interference fitted between multiple tube, non-metal composite pipe and neck bush are compressed, and big one end of internal diameter of outer cuff is close to being somebody's turn to do
In the middle part of neck bush, it is characterized in that, includes the following steps：
1) one end of the neck bush by the nozzle of non-metal composite pipe is inserted into, makes the non-metal composite pipe and liner
The contact-segment of set forms taper；
2) according to the method identical with step 1), the other end of neck bush and the connection of another non-metal composite pipe are completed；
3) by the junction centering of the center of outer cuff and non-metal composite pipe, outer hoop hitch is pressed on non-metal composite pipe
Coupling part, and pass through bolt and tighten outer cuff, make to be interference fitted between outer cuff and non-metal composite pipe；
Non-metal composite pipe is managed for PE, further includes step b) before step 3, selects what is matched with non-metal composite pipe
The sealing ring of material between sealing ring is socketed in two non-metal composite pipes, then by sealing ring electric smelting, makes sealing ring and two
The pore of a non-metal composite pipe connects to form sealing, and the sealing ring after electric smelting meets the following conditions：
Internal diameter of the seal ring=neck bush outer diameter
Sealing ring thickness=non-metal composite pipe wall thickness
Sealing ring width=non-metal composite pipe wall thickness.
In step 1), before one end of the neck bush is inserted by the nozzle of non-metal composite pipe, first nonmetallic
Compound pipe internal surface treats that coupling part and neck bush outer surface treat that lubrication stop-leak compound is brushed in coupling part respectively；
In step 2), before the outer hoop hitch is pressed on the coupling part of non-metal composite pipe, first nonmetallic compound
Tube outer surface treats that lubrication stop-leak compound is brushed in coupling part.
Step a) is further included before step 1), non-metal composite pipe nozzle to be connected is trimmed flat, make non-metal composite pipe pipe
The central axis upright of mouth plane and non-metal composite pipe；
Further include that anticorrosive paint is applied to neck bush exposed parts by step 4) and outer hoop is put on.
Above-mentioned neck bush is divided into two two parts of inserting section one and inserting section, inserting section one or inserting section two from length direction
Outer wall is equipped with step cutting pattern, the central axis coaxial of step cutting pattern and neck bush, and the table top of step is towards the center of neck bush.
Above-mentioned step cutting pattern has multiple, is distributed in inserting section one and inserting section two.
At least there are two step cutting patterns for inserting section one and inserting section two.
The length of above-mentioned neck bush is 109.53mm-133.35mm, and the internal diameter of the neck bush is 35.5mm-56.16mm；
The pipe thickness of the neck bush is tapered into center to both ends；
The length of the outer cuff is 73.02mm-88.9mm, and the minimum diameter of outer cuff is 75.02mm-90.9mm.
The length of above-mentioned neck bush is equal to 1.5 times of non-metal composite pipe outer diameters, and the internal diameter of the neck bush is equal to nonmetallic
Compound bore subtracts 2/3mm；The pipe thickness of the neck bush is tapered into center to both ends；
The length of the outer cuff is equal with non-metal composite pipe outer diameter, and the minimum diameter of outer cuff is equal to nonmetallic compound
Pipe outside diameter+2mm.
Beneficial effects of the present invention
The present invention designs a kind of quick coupling technical solution of non-metal composite pipe connection.Mainly by neck bush, outer hoop group
Into non-metal composite pipe can also include electric smelting sealing ring for PE when thermoplastic composite tubes.When carrying out connector connection, smear
Pass through in the lubrication stop-leak compound of contact surface, sealing is completed in pressurization when neck bush, outer hoop coordinate, and (non-metal composite pipe is the heat such as PE
The welding of electric smelting sealing ring during plasticity multiple tube more ensures the leakproofness of connection)；Pressurization when neck bush, outer hoop cooperation simultaneously
Deformation friction with non-metal composite pipe can ensure the certain axial load resistant ability of connector.
It can only retain pipeline most both ends using the present invention to connect with other equipment component using the form of flange head, it is intermediate non-
Metal composite pipe is connected using quick coupling, and structure type is simple, reduces link cost, also provides working efficiency.
Description of the drawings
Fig. 1 is non-metal composite pipe and connecting structure for quick coupling axial cross-sectional views；
Fig. 2 is non-metal composite pipe and connecting structure for quick coupling horizontal section schematic diagram；
Fig. 3 is that neck bush and outer cuff connect partial enlarged view with non-metal composite pipe；
Reference sign：
1- neck bush, 2- non-metal composite pipes, the outer cuffs of 3-, 4- step cutting patterns, 5- electric smelting sealing rings.
Specific embodiment
As shown in Figure 1, Figure 2 and Fig. 3, the quick coupling of a kind of non-metal composite pipe connection provided by the invention, the quick coupling
Mainly be made of neck bush 1, outer cuff 3, non-metal composite pipe for PE when thermoplastic composite tubes can also include electric smelting it is close
Seal.When carrying out connector connection, the lubrication stop-leak compound for being applied to contact surface passes through, and pressurization when neck bush, outer hoop coordinate is completed
Sealing (non-metal composite pipe more ensures the leakproofness of connection for the welding of electric smelting sealing rings of the PE when thermoplastic composite tubes)；Together
When neck bush, outer hoop cooperation when pressurization and non-metal composite pipe deformation friction can ensure the certain axial load resistant energy of connector
Power.
(1) neck bush
Media-resistant damage (corrosion/abrasion) can be used in the neck bush, and the material with suitable intensity is processed.
Length=1.5 times non-metal composite pipe outer diameter
Internal diameter=non-metal composite pipe internal diameter -2/3mm
Thickness is calculated according to pipeline bearing capacity
The tube head at the neck bush both ends is designed so as to insert the shape being pressed into non-metal composite pipe, according to connected non-gold
Belong to the outer diameter of multiple tube, neck bush outer surface is designed to that every end band is no less than step cutting pattern 4 or the neck bush outer surface of 2
It is designed to that every end band is no less than the change wall thickness shape of 2 circle ectolophs：The shape of ridge is designed to that neck bush is easily inserted and is not easy to pull out while back
High contact is formed when coordinating with outer hoop and realizes sealing.
(2) outer hoop
According to neck bush size, outer hoop is designed to bivalve or multi-petal shape formula, is bolted between each valve.Outer hoop length
(width) is 1.0 times of non-metal composite pipe outer diameters；According to neck bush size (outer diameter), non-metal composite pipe wall thickness, certain mistake
The amount of being full of designs the inner surface size for determining outer hoop, and the inner surface of outer hoop is made to form certain taper, and the outer rim of outer hoop shell can be with
The annular ridge of liner casing outermost end forms fasten and coordinate；It is determined according to the design of the size (outer diameter) of connected non-metal composite pipe
The shell outer diameter and shape of outer hoop make outer hoop have certain thickness, and screw thread connects between forming the mosaic piece of the outer cuff of split type
Connect, specifically can be used and be bolted, outer hoop be bolted after tensile force, the ansa after coordinating with neck bush generates enough
Contact force complete the sealing of joint area, while connector is made to have enough axial load resistant abilities.
(3) non-metal composite pipe is electric smelting sealing rings of the PE when thermoplastic composite tubes
Sealing ring selects the material to match with non-metal composite pipe, can be connect again with non-metal composite pipe both ends after electric smelting
Form sealing.
Electric smelting internal diameter of the seal ring=neck bush outer diameter
Electric smelting sealing ring thickness=non-metal composite pipe wall thickness
Electric smelting sealing ring width=non-metal composite pipe wall thickness
(4) connection of non-metal composite pipe-quick coupling uses
Non-metal composite pipe nozzle to be connected is trimmed flat, guarantee orifice plane and the good verticality of tube axis by A；Together
Enhancement layer in Shi Caiyong adequate measures protection multiple tube, such as to the non-metal composite pipe using steel wire rope enhancing, nozzle is cut
Epoxy coating can be used after neat, corrosion failure to prevent the part is closed to steel wire rope section；
Non-metal composite pipe inner surface to be connected is carried out appropriate (brush/mill) processing by B, and neck bush outer surface carries out appropriate
(brush/mill) processing；
C non-metal composite pipe pipe end inner surfaces treat that coupling part, neck bush outer surface treat that coupling part is brushed suitably respectively
Lubrication stop-leak compound；
D is moulding using non-metal composite pipe, and neck bush one end inserted to be pressed into foregoing non-metal compound using appropriate tool
One end of pipe, aforementioned lubrication stop-leak compound are act as：It inserts and plays lubricating action during pressure, insert and press through that reinforcing can be played after the completion of journey is close
Envelope acts on；
E non-metal composite pipes for PE when thermoplastic composite tubes, by electric smelting ring set in neck bush and with it is nonmetallic
Multiple tube pipe end fits closely；If non-metal composite pipe be not PE when thermoplastic composite tubes, omit the portion；
F completes the connection with the other end according to a~d；
Electric smelting sealing ring electrified regulation is made itself and two non-metal composite pipe end weldings by G；If non-metal composite pipe is not PE
Etc. thermoplastic composites, during no step e, also omit the portion；
Non-metal composite pipe outer surface to be connected is carried out appropriate (brush/mill) processing by H；
I treats non-metal composite pipe tube end outer surface appropriate stop-leak compound is brushed in coupling part；
Outer hoop is withheld and is tightened to centainly by bolt in pipe end coupling part by J by outer hoop and the centering of pipe end coupling part
Torque completes connector connection；
K can take outer hoop and bolt appropriate corrosion protection steps.
Claims (8)
1. a kind of method that quick coupling is connected with non-metal composite pipe, quick coupling includes neck bush and outer cuff；In described
The outer diameter of bushing is become larger by both ends to middle part, and the left and right ends of neck bush, which are respectively used to insert, is pressed into non-metal composite pipe, interior
Bushing slightly supports the non-metal composite pipe internal diameter being in contact with neck bush greatly；Outer cuff is the outer cuff of split type, outer cuff it is interior
Diameter is gradually reduced from center to both ends；Outer hoop set is pressed with the non-metal composite pipe of neck bush for being sleeved on to insert, and with it is nonmetallic
Be interference fitted between multiple tube, non-metal composite pipe and neck bush compressed, and outer cuff internal diameter it is big one end it is interior close to this
In the middle part of bushing, which is characterized in that include the following steps：
1) one end of the neck bush by the nozzle of non-metal composite pipe is inserted into, makes the non-metal composite pipe and neck bush
Contact-segment forms taper；
2) according to the method identical with step 1), the other end of neck bush and the connection of another non-metal composite pipe are completed；
3) by the junction centering of the center of outer cuff and non-metal composite pipe, outer hoop hitch is pressed on to the company of non-metal composite pipe
Socket part point, and pass through bolt and tighten outer cuff, make to be interference fitted between outer cuff and non-metal composite pipe；
Non-metal composite pipe is managed for PE, further includes step b) before step 3, selects the material to match with non-metal composite pipe
Sealing ring, between sealing ring is socketed in two non-metal composite pipes, then by sealing ring electric smelting, make sealing ring and two it is non-
The pore of metal composite pipe connects to form sealing, and the sealing ring after electric smelting meets the following conditions：
Internal diameter of the seal ring=neck bush outer diameter；
Sealing ring thickness=non-metal composite pipe wall thickness；
Sealing ring width=non-metal composite pipe wall thickness.
2. the method that quick coupling according to claim 1 is connected with non-metal composite pipe, which is characterized in that
In step 1), before one end of the neck bush is inserted by the nozzle of non-metal composite pipe, first nonmetallic compound
Pipe internal surface treats that coupling part and neck bush outer surface treat that lubrication stop-leak compound is brushed in coupling part respectively；
In step 2), before the outer hoop hitch is pressed on the coupling part of non-metal composite pipe, first outside non-metal composite pipe
Treat that lubrication stop-leak compound is brushed in coupling part in surface.
3. the method that quick coupling according to claim 1 or 2 is connected with non-metal composite pipe, which is characterized in that step
1) step a) is further included before, non-metal composite pipe nozzle to be connected is trimmed flat, make non-metal composite pipe orifice plane and non-gold
Belong to the central axis upright of multiple tube；
Further include that anticorrosive paint is applied to neck bush exposed parts by step 4) and outer hoop is put on.
4. the method that quick coupling according to claim 3 is connected with non-metal composite pipe, it is characterised in that：The liner
Set is divided into two two parts of inserting section one and inserting section from length direction, and inserting section one or two outer wall of inserting section are equipped with round platform
The central axis coaxial of rank, step cutting pattern and neck bush, the table top of step is towards the center of neck bush.
5. the method that quick coupling according to claim 4 is connected with non-metal composite pipe, it is characterised in that：The circle
Step has multiple, is distributed in inserting section one and inserting section two.
6. the method that quick coupling according to claim 5 is connected with non-metal composite pipe, it is characterised in that：Inserting section one
At least there are two step cutting patterns with inserting section two.
7. the method that quick coupling according to claim 6 is connected with non-metal composite pipe, it is characterised in that：
The length of the neck bush is 109.53mm-133.35mm, and the internal diameter of the neck bush is 35.5mm-56.16mm；It is described
The pipe thickness of neck bush is tapered into center to both ends；
The length of the outer cuff is 73.02mm-88.9mm, and the minimum diameter of outer cuff is 75.02mm-90.9mm.
8. the method that quick coupling according to claim 7 is connected with non-metal composite pipe, it is characterised in that：
The length of the neck bush is equal to 1.5 times of non-metal composite pipe outer diameters, and the internal diameter of the neck bush is equal to nonmetallic compound
Bore subtracts 2/3mm；The pipe thickness of the neck bush is tapered into center to both ends；
The length of the outer cuff is equal with non-metal composite pipe outer diameter, and the minimum diameter of outer cuff is equal to outside non-metal composite pipe
Diameter+2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503810.8A CN105953006B (en) | 2016-06-29 | 2016-06-29 | Quick coupling and quick coupling and the connection method of non-metal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503810.8A CN105953006B (en) | 2016-06-29 | 2016-06-29 | Quick coupling and quick coupling and the connection method of non-metal composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105953006A CN105953006A (en) | 2016-09-21 |
| CN105953006B true CN105953006B (en) | 2018-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610503810.8A Expired - Fee Related CN105953006B (en) | 2016-06-29 | 2016-06-29 | Quick coupling and quick coupling and the connection method of non-metal composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105953006B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343065B (en) * | 2017-01-22 | 2023-08-29 | 北京爱地地质勘察基础工程公司 | Compression-resistant connection structure for secondary splitting grouting and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5470113A (en) * | 1993-05-13 | 1995-11-28 | Vulkan Lokring Gmbh | Connector for plastic tubes |
| CN2516801Y (en) * | 2001-11-13 | 2002-10-16 | 李志雄 | Metal plastic composite pipe fitting |
| CN2596166Y (en) * | 2001-12-05 | 2003-12-31 | 李志雄 | Metal-plastic composite pipe |
| CN201891973U (en) * | 2010-11-10 | 2011-07-06 | 浙江经纬集团环保工程有限公司 | Socket structure of hot-melting pipe fitting and bushing used by same |
| CN102322554A (en) * | 2011-08-25 | 2012-01-18 | 张家港联冠新材料有限公司 | Medium-pressure steel wire reinforced plastic pipeline and pipe fitting connecting method |
| CN205877525U (en) * | 2016-06-29 | 2017-01-11 | 中国石油天然气集团公司管材研究所 | Quick -operation joint who connects non - metal composite pipe |
-
2016
- 2016-06-29 CN CN201610503810.8A patent/CN105953006B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5470113A (en) * | 1993-05-13 | 1995-11-28 | Vulkan Lokring Gmbh | Connector for plastic tubes |
| CN2516801Y (en) * | 2001-11-13 | 2002-10-16 | 李志雄 | Metal plastic composite pipe fitting |
| CN2596166Y (en) * | 2001-12-05 | 2003-12-31 | 李志雄 | Metal-plastic composite pipe |
| CN201891973U (en) * | 2010-11-10 | 2011-07-06 | 浙江经纬集团环保工程有限公司 | Socket structure of hot-melting pipe fitting and bushing used by same |
| CN102322554A (en) * | 2011-08-25 | 2012-01-18 | 张家港联冠新材料有限公司 | Medium-pressure steel wire reinforced plastic pipeline and pipe fitting connecting method |
| CN205877525U (en) * | 2016-06-29 | 2017-01-11 | 中国石油天然气集团公司管材研究所 | Quick -operation joint who connects non - metal composite pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105953006A (en) | 2016-09-21 |
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