CN102720912B - Plastic pipeline expansion piece - Google Patents
Plastic pipeline expansion piece Download PDFInfo
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- CN102720912B CN102720912B CN201110080046.5A CN201110080046A CN102720912B CN 102720912 B CN102720912 B CN 102720912B CN 201110080046 A CN201110080046 A CN 201110080046A CN 102720912 B CN102720912 B CN 102720912B
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Abstract
The invention discloses a plastic pipeline expansion piece belonging to the technical field of pipeline compensation devices. The plastic pipeline expansion piece includes a core pipe, an outer connecting sleeve B, a convex outer ring of the outer connecting sleeve B, a plunger piston inner pipe framework, a plunger piston inner pipe, and a ring seal framework, which are all connected into an integrative structure, wherein the plunger piston inner pipe is provided with a convex outer ring of the plunger piston inner pipe, and the ring seal framework is provided with an O-type seal ring A and an O-type seal ring B. When one end of the core pipe is subjected to pushing of axial thermal expansion force, the outer connecting sleeve B, the core pipe, the plunger piston inner pipe provided with the convex outer ring of the plunger piston inner pipe and connected on the plunger piston inner pipe framework, and the ring seal framework provided with the O-type seal ring A and the O-type seal ring B can move wholly, coaxially and synchronously in the axial direction through the convex outer ring of the outer connecting sleeve B which is propped against a corrugated pipe capable of deformation by self-flexibility. Through adopting the structure, the plastic pipeline expansion piece has multifunctional characteristics of reducing pipeline stress, enhancing sealing performance, improving loading capacity, having corrosion protection efficacy, and realizing large compensation dosage and broad application range.
Description
Technical field
The present invention relates to a kind of expansion device for plastic pipe, belong to the technical field of pipe line compensating device, belong to specifically the technical field of the industrial pipeline compensation device structure of using in the industries such as petrochemical industry, light industry, electric power, municipal administration; Especially energy conservation transformation of power plants (condensed water recovery plastic pipe) has further promoted the application and development of buried plastic pipe.
Background technique
The plastic pipe compensation way of prior art is common have following several: 1. traditional natural U-bend formula, 2. non-metal compensator etc.Wherein: natural U-bend formula compensation way crushing is larger, particularly inapplicable in buried pipeline; While adopting common non-metal compensator in conduit running, there is all the time the problems such as run, drip, leak; Adopt structure and the sealability of common slip-type expansion joint also not good enough, leakage phenomenon is more serious, also weaker aspect anticorrosion link; Particularly adopting common non-metal compensator and common slip-type expansion joint is all the single seal form adopting, in the use: the aspects such as flowing medium and bearing capacity are all subject to certain limitation.
Summary of the invention
The invention provides a kind of expansion device for plastic pipe, to realize the deficiency that solves existing several compensation types; Reach and reduce pipe stress, strengthen sealability, improve bearing capacity, possess preservative efficacy, can realize large compensation amount, need not the occupying volume external space, multifunctional characteristics applied widely; And operating cost is low, can guarantee that pipe network operation is safe and reliable, can play energy-conservation object again.
In order to achieve the above object, technological scheme of the present invention is:
, comprise outer adapter sleeve A, plunger outer tube framework, fixedly reinforcement pins A, the protruding outer shroud of plunger inner tube, anti-slip limited ring, fixedly reinforcement pins B, O RunddichtringO B, O RunddichtringO A, core pipe, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, ring packing framework, plunger outer tube, plunger inner tube, bellows, O RunddichtringO C, the protruding outer shroud of outer adapter sleeve A, O RunddichtringO D, anticorrosion overcoat framework A, anticorrosion overcoat, filled insulation and anticorrosion overcoat framework B;
One end outer shroud ring set of described core pipe has outer adapter sleeve A, and the other end outer shroud ring set has outer adapter sleeve B, and this core pipe and described outer adapter sleeve B are connected and fixed as overall structure by bonding;
Outside the termination of described outer adapter sleeve A ring set core pipe one end, ring surface convexes with the protruding outer shroud of outer adapter sleeve A, the interior ring surface of its correspondence is concaved with at least two recess grooves that are parallel to each other, and this O RunddichtringO C and O RunddichtringO D embed respectively in different recess grooves; Outside the termination of described outer adapter sleeve B ring set core pipe one end, ring surface convexes with the protruding outer shroud of outer adapter sleeve B;
Described corrugated pipe ring is enclosed within on core pipe and between this protruding outer shroud of outer adapter sleeve A and the protruding outer shroud opposing end surface of outer adapter sleeve B, the overlapping corresponding end face that is overlapped on the protruding outer shroud of this outer adapter sleeve A and the protruding outer shroud of this outer adapter sleeve B in two ends of bellows, and be connected and fixed with corresponding end face is bonding respectively;
Described plunger outer tube framework ring set is at the outer shroud of the protruding outer shroud of this outer adapter sleeve A, and plunger outer tube framework inner ring surface is provided with the annular notch that can withhold bellows one side head, and this plunger outer tube framework, the protruding outer shroud of outer adapter sleeve A are connected and fixed by bonding;
The exterior ring cap of the described protruding outer shroud of outer adapter sleeve B is provided with plunger inner tube framework, and this plunger inner tube framework inner ring surface is provided with the annular notch that can withhold bellows one side head, and this plunger inner tube framework, the protruding outer shroud of outer adapter sleeve B are connected and fixed by bonding;
Described plunger inner tube is tube structure, and outer end is by the bonding outer ring surface that is fastened on this plunger inner tube framework, and the inner hangs the outer shroud that is enclosed within bellows, and this termination, the inner outer shroud is convexly equipped with and is equipped with the protruding outer shroud of plunger inner tube; The exterior ring cap of this plunger inner tube outer end is provided with ring packing framework, and the outer ring surface of this ring packing framework is concaved with at least two recess grooves that are parallel to each other, and this O RunddichtringO A and O RunddichtringO B embed respectively in different recess grooves; The outer ring surface of the inwall of ring packing framework and plunger inner tube external end head is connected and fixed by bonding;
Described plunger outer tube is cylinder-shaped structure, and ring set is in this bellows and plunger inner tube, and the outer ring surface of one end and plunger outer tube framework is connected and fixed by bonding, and the other end slides over the outer shroud of ring packing framework; The inner ring surface one of this plunger outer tube convexes with anti-slip limited ring, and this anti-slip limited ring is between described ring packing framework and the protruding outer shroud of plunger inner tube;
At least one fixedly reinforcement pins B along even circumferential, distribute and connect plunger inner tube framework and plunger inner tube is fixed one end of plunger inner tube framework, plunger inner tube and bellows and the protruding outer battle pin of outer adapter sleeve B;
At least one fixedly reinforcement pins A along even circumferential, distribute and connect plunger outer tube framework and plunger outer tube is fixed one end of plunger outer tube framework, plunger outer tube and bellows and the protruding outer battle pin of outer adapter sleeve A;
Described anticorrosion overcoat axial cross section is shaped as the grooved tubular structure to a side opening, integrated ring is enclosed within the outer shroud of this outer adapter sleeve A and this plunger outer tube, form a hollow space with this plunger outer tube and the outer shroud that further extends to this outer adapter sleeve A, in described hollow space, one is inserted filled insulation;
Described filled insulation global shape is the ladder tubular with large osculum, and osculum end contact is encircled the bonding anticorrosion overcoat framework B being connected and fixed respectively with in outer adapter sleeve A outer shroud and anticorrosion overcoat; Big opening end contact is encircled the bonding anticorrosion overcoat framework A being connected and fixed respectively with in plunger outer tube outer shroud and anticorrosion overcoat;
The pipeline of connection is installed in the extension of described outer adapter sleeve A and the anticorrosion thermal insulating warm-keeping layer filled insulation of plunger outer tube outer shroud is finally structure as a whole; The outer shroud of the pipeline that described outer adapter sleeve B and extension installation connect arranges the anticorrosion thermal insulating warm-keeping layer of integrative-structure.
The two ends of this bellows meet at right angles and detain respectively the corresponding end face that is overlapped on the protruding outer shroud of this outer adapter sleeve A and the protruding outer shroud of this outer adapter sleeve B, and are connected and fixed with corresponding end face is bonding respectively.
This bonding being connected and fixed adopts the bonding of chemical agent to be connected and fixed.
The sectional shape of the protruding outer shroud of this outer adapter sleeve A is rectangle; The sectional shape of the protruding outer shroud of this outer adapter sleeve B is rectangle.
The sectional shape of this plunger outer tube framework is rectangle; The sectional shape of this plunger inner tube framework is rectangle
One end of this bellows is inserted and is fixed between this plunger inner tube framework and the protruding outer shroud surface of contact of outer adapter sleeve B, and the other end of this bellows inserts and is fixed between this plunger outer tube framework and the protruding outer shroud surface of contact of outer adapter sleeve A.
The sectional shape of the protruding outer shroud of this plunger inner tube is rectangle; The sectional shape of this anti-slip limited ring is rectangle.
The annular space that one end that core pipe described in this bellows is arranged in becomes to lean out shape with this plunger inner tube surrounds.
This core pipe, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, with the plunger inner tube of the protruding outer shroud of plunger inner tube and with the ring packing framework of O RunddichtringO A and O RunddichtringO B, connect as one structure; Form when core pipe one end is subject to that axial thermal expansion power is crowded to be pushed away, but described outer adapter sleeve B, core pipe, with the protruding outer shroud of plunger inner tube and be connected to plunger inner tube on plunger inner tube framework and the structure of coaxial synchronous integrated moving vertically of this bellows by the protruding outer shroud contact of outer adapter sleeve B self plastic deformation with the ring packing framework of O RunddichtringO A and O RunddichtringO B.
Adopt technological scheme of the present invention and to be welded the standard of sleeve expansion joint according to the standard of city heat supply compensator, for the race in conduit running, emit, let out, the problems such as leakage, by FlexbleJoint, the advantage of sleeve expansion joint and whirl compensator organically combines, because core pipe one end outer is equipped with into the outer adapter sleeve A that ring set leans out shape, outer adapter sleeve A is inner facing to being equipped with two annular notch grooves in core pipe outer shroud, O RunddichtringO C and O RunddichtringO D are seated in respectively in two annular notch grooves, the link closely outer ring surface of core pipe of the interior ring of this O RunddichtringO C and O RunddichtringO D, the inner outer shroud of outer adapter sleeve A is integrally formed with the protruding outer shroud of outer adapter sleeve A, the other end of core pipe is equipped with into the outer adapter sleeve B that ring set leans out shape outward, and the inner outer shroud of outer adapter sleeve B is integrally formed with the protruding outer shroud of outer adapter sleeve B, and in the inner of outer adapter sleeve B, ring becomes overlapping overlap joint shape to fix with the outer shroud of core pipe, between the protruding outer shroud of outer adapter sleeve A and the protruding outer shroud opposing end surface of outer adapter sleeve B, be provided with cylinder-shaped bellows, the two ends of bellows become overlapping overlap joint to fix with the outer ring surface of the protruding outer shroud of outer adapter sleeve A and the protruding outer shroud of outer adapter sleeve B respectively, the exterior ring cap of the protruding outer shroud of outer adapter sleeve B is provided with plunger inner tube framework, in plunger inner tube framework the inner, be equipped with the annular notch of withholding bellows one termination, the outer shroud that makes the inner ring sleeve of plunger inner tube framework be buckled in the protruding outer shroud of outer adapter sleeve B and bellows one termination is adhesively fixed, plunger inner tube is set in the outside that plunger inner tube framework comprises bellows, and plunger inner tube the inner is provided with the protruding outer shroud of plunger inner tube, and the outer shroud of the inwall of the outer termination of plunger inner tube and plunger inner tube framework is adhesively fixed, plunger outer tube framework ring set is the outer shroud of the protruding outer shroud of adapter sleeve A outside, in plunger outer tube framework the inner, be equipped with the annular notch of withholding bellows one termination, the outer shroud that makes the inner ring sleeve of plunger outer tube framework be buckled in the protruding outer shroud of outer adapter sleeve A and bellows one termination is adhesively fixed respectively, the exterior ring cap of the outer termination of plunger inner tube is provided with the ring packing framework that comprises O RunddichtringO A and O RunddichtringO B, and the outer ring surface of the inwall of ring packing framework and the outer termination of plunger inner tube is adhesively fixed, the outer fixedly reinforcement pins B that connects plunger inner tube framework and plunger inner tube that is equipped with of the protruding outer shroud of outer adapter sleeve B, the outer fixedly reinforcement pins A that connects plunger outer tube framework and plunger outer tube that is equipped with of the protruding outer shroud of outer adapter sleeve A, cylinder-shaped plunger outer tube ring set is at the outer shroud of ring packing framework and plunger outer tube framework, plunger inner tube become to lean out shape with outer end ring packing framework, the inwall of plunger outer tube between ring packing framework and the protruding outer shroud of plunger inner tube is provided with an anti-slip limited ring, and the link closely outer ring surface of plunger outer tube framework of a termination inwall is adhesively fixed, the other end inwall link closely O RunddichtringO A in annular seal architectures and the outer shroud of O RunddichtringO B, anticorrosion overcoat framework A and anticorrosion overcoat framework B distinguish latch closure at the outer shroud of plunger outer tube external end head and the outer shroud of outer adapter sleeve A, and are adhesively fixed respectively, axial cross section is shaped as the outer shroud that is enclosed within anticorrosion overcoat framework A and anticorrosion overcoat framework A to the anticorrosion outer sleeve of the grooved tubular structure of a side opening and is adhesively fixed, anticorrosion overcoat and plunger outer tube comprise in the chamber between the outer shroud of outer adapter sleeve A part and are provided with filled insulation, outer adapter sleeve A (comprise the pipeline connecting is installed) is finally structure as a whole with the anticorrosion thermal insulating warm-keeping layer of plunger outer tube outer shroud, the anticorrosion thermal insulating warm-keeping layer of outer shroud of outer adapter sleeve B outer shroud (comprise the pipeline connecting is installed) is finally structure as a whole, core pipe comprises that outer shroud arranges the outer adapter sleeve B of one, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework and is finally structure as a whole with the plunger inner tube of the protruding outer shroud of plunger inner tube and with the ring packing framework of O RunddichtringO A and O RunddichtringO B, when being subject to axial thermal expansion power, outer adapter sleeve B one end squeezes while pushing away the structure of coaxial synchronous integrated moving vertically, bellows is by self plastic deformation, form the anticorrosion thermal insulating warm-keeping layer of outer adapter sleeve B one end and the anticorrosion thermal insulating warm-keeping layer of outer adapter sleeve A one end is respectively integrated, integrated piping is independent of each other each other when heat expansion, shrinkage, both can be applicable in buried pipeline, can be applicable to again on aerial pipeline, self structure possesses anticorrosion, adiabatic multifunctional characteristics simultaneously.Adopt such structure to there is the pipe stress of reducing, strengthen sealability, improve bearing capacity, possess preservative efficacy, can realize large compensation amount, multi-functional feature applied widely; Less investment, operating cost is low, really reaches and can guarantee that pipe network is both safe and reliable to operation, can reach energy-conservation object again.
Accompanying drawing explanation
Fig. 1 is that the present invention absorbs thermal walking pre-structure schematic diagram
Fig. 2 is that the present invention absorbs structural representation after thermal walking
Fig. 3 is that the present invention absorbs structural representation after thermal walking shrinkage
Description of reference numerals:
1. outer adapter sleeve A
2. plunger outer tube framework
Fixedly reinforcement pins A,
The protruding outer shroud of plunger inner tube,
Anti-slip limited ring,
6. fixing reinforcement pins B
7.O RunddichtringO B
8.O RunddichtringO A
9. core pipe
10. outer adapter sleeve B
The protruding outer shroud of 11. outer adapter sleeve B
12. plunger inner tube frameworks
13. ring packing frameworks
14. plunger outer tubes
15. plunger inner tubes
16. bellowss
17.O RunddichtringO C
The protruding outer shroud of 18. outer adapter sleeve A
19.O RunddichtringO D
20. anticorrosion overcoat framework A
21. anticorrosion overcoats
22. filled insulations
23. anticorrosion overcoat framework B.
Embodiment:
Below in conjunction with accompanying drawing, technological scheme of the present invention is described in detail as follows.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of expansion device for plastic pipe, comprise the outer adapter sleeve A1 being made by plastic materials, plunger outer tube framework 2, fixing reinforcement pins A3, the protruding outer shroud 4 of plunger inner tube, anti-slip limited ring 5, fixedly reinforcement pins B 6, O RunddichtringO B7, O RunddichtringO A8, core pipe 9, outer adapter sleeve B10, the protruding outer shroud 11 of outer adapter sleeve B, plunger inner tube framework 12, ring packing framework 13, plunger outer tube 14, plunger inner tube 15, bellows 16, O RunddichtringO C17, the protruding outer shroud 18 of outer adapter sleeve A, O RunddichtringO D19, anticorrosion overcoat framework A20, anticorrosion overcoat 21, filled insulation 22 and anticorrosion overcoat framework B23,
One end outer shroud ring set of described core pipe 9 has outer adapter sleeve A1, and the other end outer shroud ring set has outer adapter sleeve B10, and this core pipe 9 is connected and fixed as overall structure by (employing chemical agent) is bonding with described outer adapter sleeve B10;
The outer ring surface in the termination of described outer adapter sleeve A1 ring set core pipe 9 one end (or claiming inner termination) convexes with the protruding outer shroud 18 of outer adapter sleeve A, the sectional shape of the protruding outer shroud 18 of this outer adapter sleeve A is rectangle, the interior ring surface of its correspondence is concaved with the recess groove that at least two (for example two) are parallel to each other, and this O RunddichtringO C17 and O RunddichtringO D19 embed respectively in different recess grooves; Outside the termination of described outer adapter sleeve B10 ring set core pipe 9 one end, ring surface convexes with the protruding outer shroud 11 of outer adapter sleeve B, and the sectional shape of the protruding outer shroud 11 of this outer adapter sleeve B is rectangle;
Described bellows 16 ring sets are on core pipe 9 outer shrouds and be positioned between the protruding outer shroud 18 of this outer adapter sleeve A and protruding outer shroud 11 both relative (wearing) end faces of outer adapter sleeve B, the two ends of bellows 16 meet at right angles respectively button overlap joint or the overlapping corresponding end face that is overlapped on the protruding outer shroud 18 of this outer adapter sleeve A and the protruding outer shroud 11 of this outer adapter sleeve B, and respectively with bonding being connected and fixed of corresponding end face (employing chemical agent);
The ring structure that described plunger outer tube framework 2 is rectangle for cross section, ring set is at the outer ring surface of the protruding outer shroud 18 of this outer adapter sleeve A, plunger outer tube framework 2 inner ring surfaces are provided with the annular notch that can withhold bellows 16 1 side heads, and this plunger outer tube framework 2, the protruding outer shroud 18 of outer adapter sleeve A (with the bellows 16 1 side heads that insert annular notch) are connected and fixed by bonding;
The exterior ring cap of the described protruding outer shroud 11 of outer adapter sleeve B is provided with plunger inner tube framework 12, these plunger inner tube framework 12 inner ring surfaces are provided with the annular notch that can withhold bellows 16 1 side heads, this plunger inner tube framework 12, the protruding outer shroud 11 of outer adapter sleeve B (with the bellows 16 1 side heads that insert annular notch, with respect to the opposite side termination of inserting the bellows 16 1 side heads of this plunger outer tube framework 2 and protruding outer shroud 18 annular notch of outer adapter sleeve A) are connected and fixed by bonding;
In fact also one end insertion that can be this bellows 16 is fixed between this plunger inner tube framework 12 and protruding outer shroud 11 surface of contact of outer adapter sleeve B, and the other end of this bellows 16 inserts and is fixed between this plunger outer tube framework 2 and protruding outer shroud 18 surface of contact of outer adapter sleeve A.
The sectional shape of this plunger outer tube framework 2 is rectangle; The sectional shape of this plunger inner tube framework 12 is rectangle;
Described plunger inner tube 15 is tube structure, outer end is by the bonding outer ring surface that is fastened on this plunger inner tube framework 12, the inner outstanding outer shroud that is enclosed within bellows 16, this termination, the inner outer shroud is convexly equipped with and is equipped with the protruding outer shroud 4 of plunger inner tube (its sectional shape is rectangle); The exterior ring cap of these plunger inner tube 15 outer ends is provided with the ring packing framework 13 that its sectional shape is rectangle, the outer ring surface of this ring packing framework 13 is concaved with at least two recess grooves that are parallel to each other, and this O RunddichtringO A8 and O RunddichtringO B7 embed respectively in different recess grooves; The outer ring surface of the inwall of ring packing framework 13 and plunger inner tube 15 external end heads is connected and fixed by bonding; This bellows 16 is physically located in the annular space that one end that described core pipe 9 and 15 one-tenth of this plunger inner tubes lean out shape surrounds (as Fig. 1 and Fig. 2) before or after absorbing thermal walking.
Described plunger outer tube 14 is cylinder-shaped structure, and ring set is in this bellows 16 and plunger inner tube 15, and the outer ring surface of one end and plunger outer tube framework 2 is connected and fixed by bonding, and the other end slides over the outer shroud of ring packing framework 13; The inner ring surface one of this plunger outer tube 14 convexes with anti-slip limited ring 5, and this anti-slip limited ring 5 is between described ring packing framework 13 and the protruding outer shroud 4 of plunger inner tube;
At least one (for example 4-10) fixedly reinforcement pins B6 distributes and connects plunger inner tube framework 12 and plunger inner tube 15 is sold one end of plunger inner tube framework 12, plunger inner tube 15 and bellows 16 to be connected with the protruding outer shroud 11 of outer adapter sleeve B along even circumferential;
At least one (for example 4-10) fixedly reinforcement pins A3 distributes and connects plunger outer tube framework 2 and plunger outer tube 14 is sold one end of plunger outer tube framework 2, plunger outer tube 14 and bellows 16 to be connected with the protruding outer shroud 18 of outer adapter sleeve A along even circumferential;
Described anticorrosion overcoat 21 axial cross sections are shaped as the grooved tubular structure to a side opening, integrated ring is enclosed within the outer shroud of this outer adapter sleeve A1 and this plunger outer tube 14, form a hollow space with this plunger outer tube 14 and the outer shroud that further extends to this outer adapter sleeve A1, in described hollow space, one is inserted filled insulation 22;
Described filled insulation 22 global shapes are the ladder tubular with large osculum, osculum end contact respectively with outer adapter sleeve A1 outer shroud and the bonding anticorrosion overcoat framework B23 being connected and fixed of the interior ring of anticorrosion overcoat 21; Big opening end contact respectively with plunger outer tube 14 outer shrouds and the bonding anticorrosion overcoat framework A20 being connected and fixed of the interior ring of anticorrosion overcoat 21;
The pipeline of connection is installed in the extension of described outer adapter sleeve A1 and the anticorrosion thermal insulating warm-keeping layer filled insulation 22 of plunger outer tube 14 outer shrouds is finally structure as a whole; The outer shroud of the pipeline that described outer adapter sleeve B10 and extension installation connect arranges the anticorrosion thermal insulating warm-keeping layer of integrative-structure.
This core pipe 9, outer adapter sleeve B10, the protruding outer shroud 11 of outer adapter sleeve B, plunger inner tube framework 12, with the plunger inner tube 15 of the protruding outer shroud 4 of plunger inner tube and with the ring packing framework 13 of O RunddichtringO A8 and O RunddichtringO B7, connect as one structure; Form when core pipe 9 one end are subject to that axial thermal expansion power is crowded to be pushed away, but described outer adapter sleeve B10, core pipe 9, with the protruding outer shroud 4 of plunger inner tube and be connected to plunger inner tube 15 on plunger inner tube framework 12 and the structure of coaxial synchronous integrated moving vertically of this bellows 16 by protruding outer shroud 11 contacts of outer adapter sleeve B self plastic deformation with the ring packing framework 13 of O RunddichtringO A8 and O RunddichtringO B7.
In sum, outer adapter sleeve A, the protruding outer shroud of outer adapter sleeve A, O RunddichtringO C and O RunddichtringO D, plunger outer tube framework, plunger outer tube, anti-slip limited ring, anticorrosion overcoat framework A, anticorrosion overcoat, filled insulation and anticorrosion overcoat framework B are finally structure as a whole; Core pipe, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, ring packing framework, O RunddichtringO A and O RunddichtringO B are finally structure as a whole; When outer adapter sleeve B one end is subject to axial thermal expansion power, squeeze while pushing away, this core pipe, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, ring packing framework comprise O RunddichtringO A and O RunddichtringO B can with the plastic deformation of bellows vertically coaxial synchronous integral body carry out left and right displacement.Adopt such structure to there is the pipe stress of reducing, strengthen sealability, improve bearing capacity, possess preservative efficacy, can realize large compensation amount, further expand Applicable scope, less investment, operating cost is low, really can make safe and reliable, the energy-conservation multifunctional characteristics of pipe network operation.
Technological scheme of the present invention when implementing because outer adapter sleeve A, the protruding outer shroud of outer adapter sleeve A, O RunddichtringO C and O RunddichtringO D, plunger outer tube framework, plunger outer tube, anti-slip limited ring, anticorrosion overcoat framework A, anticorrosion overcoat, filled insulation and anticorrosion overcoat framework B are finally structure as a whole; Core pipe, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, ring packing framework, O RunddichtringO A and O RunddichtringO B are finally structure as a whole; When assembling:
The first step is coated with the inwall of the anchor ring of the specified position of core pipe outer shroud one end and the inner specified position of outer adapter sleeve B cylindrical shell the chemical agent of rinsing upper special use, then outer shroud is inserted to the inner specified position of outer adapter sleeve B cylindrical shell with chemical agent one end with the core pipe of chemical agent one end, core pipe and outer adapter sleeve B are adhesively fixed firmly.
Second step is coated with the inner outer ring surface of the inwall of bellows one termination and the protruding outer shroud of outer adapter sleeve B the chemical agent of rinsing upper special use, then inwall is installed to the outer shroud of core pipe from the other end cover of core pipe with chemical agent one end, and make the termination inwall hitch of bellows to the outer shroud specified position of the protruding outer shroud of outer adapter sleeve B, make protruding outer being adhesively fixed firmly of bellows and outer adapter sleeve B.
The 3rd step is coated with the inner outer ring surface of the inwall of another termination of bellows and the protruding outer shroud of outer adapter sleeve A the chemical agent of rinsing upper special use, then O RunddichtringO C and O RunddichtringO D are embedded respectively in two annular notch grooves of inner end inside outer adapter sleeve A, then the specified position to the other end outer shroud of core pipe by the outer adapter sleeve A hitch with the protruding outer shroud of outer adapter sleeve A and O RunddichtringO C and O RunddichtringO D, the protruding outer shroud of outer adapter sleeve A is inserted in the chamber of another inner side, termination of bellows, and by chemical agent, the inner outer ring surface of the protruding outer shroud of outer adapter sleeve A and another termination inwall of bellows are adhesively fixed firmly, (as shown in Figure 1) make the interior ring of O RunddichtringO C and O RunddichtringO D link closely to the do outer shroud of the other end of core pipe simultaneously.
The 4th step comprises that the protruding outer shroud of outer adapter sleeve A the inner side of the outer ring surface of bellows termination and the plunger outer tube framework of ring-type is coated with the chemical agent of rinsing special use, then by plunger outer tube framework from outer adapter sleeve A outer end hitch to the outer shroud that comprises the protruding outer shroud of outer adapter sleeve A of bellows termination, and by chemical agent make plunger outer tube framework with comprise that the protruding outer shroud of outer adapter sleeve A of bellows termination is adhesively fixed firmly.
The 5th step comprises that the protruding outer shroud of outer adapter sleeve B the inner side of the outer ring surface of bellows termination and the plunger inner tube framework of ring-type is coated with the chemical agent of rinsing special use, then by plunger inner tube framework from outer adapter sleeve B outer end hitch to the outer shroud that comprises the protruding outer shroud of outer adapter sleeve B of bellows termination, and by chemical agent make plunger inner tube framework with comprise that the protruding outer shroud of outer adapter sleeve B of bellows termination is adhesively fixed firmly.
The 6th step is coated with the outer ring surface of plunger inner tube framework the chemical agent of rinsing upper special use the outer end of the cylinder-shaped plunger inner tube with the protruding outer shroud of plunger inner tube inner side, then the outside to bellows by cylinder-shaped plunger inner tube hitch, make plunger inner tube by the outer end inner wall outer ring surface of plunger inner tube framework that links closely, and by chemical agent, plunger inner tube and plunger inner tube framework are adhesively fixed firmly; (as shown in Figure 1) then the anchor ring of the outer end of plunger inner tube beat connect plunger inner tube framework and outside the hole of fixedly reinforcement pins B of the protruding outer shroud of adapter sleeve B, and by chemical agent, fixedly reinforcement pins B and plunger inner tube, plunger inner tube framework and the protruding outer shroud of outer adapter sleeve B are adhesively fixed firmly.
The 7th step is being coated with cylinder-shaped plunger outer tube one end inwall of anti-slip limited ring and the outer ring surface of plunger outer tube framework the chemical agent of rinsing upper special use, then by plunger outer tube from plunger inner tube outer end hitch to plunger inner tube outside, make the plunger outer tube end inwall outer ring surface of plunger outer tube framework that links closely of keeping right, and by chemical agent, plunger outer tube and plunger outer tube framework are adhesively fixed firmly; (as shown in Figure 1) then at plunger outer tube, by the anchor ring of termination, beat connect plunger outer tube framework and outside the hole of fixedly reinforcement pins A of the protruding outer shroud of adapter sleeve A, and by chemical agent, fixedly reinforcement pins A and plunger outer tube, plunger outer tube framework and the protruding outer shroud of outer adapter sleeve A are adhesively fixed firmly.(as shown in Figure 1) termination of plunger outer tube flushes with the exterior edge face of plunger outer tube framework, and another termination of plunger outer tube becomes to lean out shape with the exterior edge face of plunger inner tube framework.
The 8th step is being coated with the ring packing framework inwall of O RunddichtringO A and O RunddichtringO B and the outer ring surface of the outer end of plunger inner tube the chemical agent of rinsing upper special use, then the outer shroud to the outer end of plunger inner tube by ring packing framework hitch, make the ring packing framework inwall outer ring surface of the outer end of plunger inner tube that links closely, and by chemical agent, plunger inner tube and plunger inner tube framework are adhesively fixed firmly; Make the outer shroud of O RunddichtringO A and O RunddichtringO B be tight against the inwall of plunger outer tube simultaneously.
The 9th step anti-end face with the anticorrosion overcoat framework A hitch of at least one filler port the external end head to plunger outer tube, and by adopting chemical agent to be adhesively fixed; Directly end face with the anticorrosion overcoat framework B of at least one filler port the specified position from outer adapter sleeve A external end head hitch to outer adapter sleeve A outer shroud, and by adopting chemical agent to be adhesively fixed, then from anticorrosion overcoat framework B, hold outer shroud hitch to the outer shroud of anticorrosion overcoat framework A outer end in the cylinder-shaped anticorrosion overcoat with reducing.In chamber between finally (comprising adapter sleeve A outside part) between anticorrosion overcoat and plunger outer tube, inject filled insulation.
This technique makes:
1. the core pipe described in, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, the protruding outer shroud of plunger inner tube, ring packing framework, O RunddichtringO A and O RunddichtringO B are finally structure as a whole; When outer adapter sleeve B one end is subject to axial thermal expansion power, squeeze while pushing away, the core pipe that this is finally structure as a whole, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, the protruding outer shroud of plunger inner tube, ring packing framework, O RunddichtringO A and O RunddichtringO B can carry out synchronous left and right displacement vertically with the plastic deformation of bellows provides necessary condition.
2. the bellows two ends of passing through described in are fixedly connected with the protruding outer shroud of outer adapter sleeve B of outer adapter sleeve B one and the overlapping overlap joint of the protruding outer shroud of outer adapter sleeve A of outer adapter sleeve A one respectively, or say by flexibly connecting of bellows and finally make outer adapter sleeve B and outer adapter sleeve A become an integral tubular structure; First determined that whole equipment is logical without leaking; Add core pipe and be fixedly connected with the overlapping overlap joint of outer adapter sleeve B, the O RunddichtringO C being provided with between core pipe and the overlapping overlap joint anchor ring of outer adapter sleeve A and O RunddichtringO D's is multi-sealed; Sealability is fully guaranteed.
3. squeezing while pushing away when outer adapter sleeve B one end is subject to axial thermal expansion power described in, the core pipe that this is finally structure as a whole, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, the protruding outer shroud of plunger inner tube, ring packing framework can carry out with the plastic deformation of bellows synchronously left vertically, during right displacement, when the crowded pushing of adapter sleeve A end outward moves in other words, O RunddichtringO A in ring packing framework and O RunddichtringO B have played the seal action between plunger inner tube and plunger outer tube anchor ring, when (especially for directly buried pipeline), can stop underground water to enter the effect of the cavity at bellows position.
4. the protruding outer shroud of plunger inner tube described in and the distance of the distance between anti-slip limited ring end face and ring packing framework outer end to plunger outer tube outer end, (as shown in Figure 1) this distance is to consider the coefficient of plastic pipe shrinkage, (as shown in Figure 3) when the protruding outer shroud of pipeline shrinkage back-plunger inner tube out of service and anti-slip limited ring end face just in time offset, ring packing framework outer end also just in time flushes equally with plunger outer tube outer end;
5. the effect to anticorrosion, the insulating energy-saving of primary structural component, (especially for directly buried pipeline) have been played in the anticorrosion overcoat of diameter reducing type of the disjunctor described in and filled insulation; Also be convenient to the outer heat-insulation integral lapping construction of outer adapter sleeve and (main pipeline after installation) simultaneously.
6. the anti-slip limited ring that the plunger outer tube wall described in is integrally formed with has played the parts such as core pipe while carrying out synchronous left and right axial displacement, the anti-slip effect that this core pipe being finally structure as a whole, outer adapter sleeve B, the protruding outer shroud of outer adapter sleeve B, plunger inner tube framework, plunger inner tube, the protruding outer shroud of plunger inner tube, ring packing framework integral body pull outward with the plastic deformation of bellows when pipeline shrinkage out of service in other words, has further improved the safety guarantee of equipment operation.
Claims (9)
1. an expansion device for plastic pipe, it is characterized in that: comprise outer adapter sleeve A (1), plunger outer tube framework (2), fixing reinforcement pins A (3), the protruding outer shroud of plunger inner tube (4), anti-slip limited ring (5), fixing reinforcement pins B (6), O RunddichtringO B (7), O RunddichtringO A (8), core pipe (9), outer adapter sleeve B (10), the protruding outer shroud of outer adapter sleeve B (11), plunger inner tube framework (12), ring packing framework (13), plunger outer tube (14), plunger inner tube (15), bellows (16), O RunddichtringO C (17), the protruding outer shroud of outer adapter sleeve A (18), O RunddichtringO D (19), anticorrosion overcoat framework A (20), anticorrosion overcoat (21), filled insulation (22) and anticorrosion overcoat framework B (23),
One end outer shroud ring set of described core pipe (9) has outer adapter sleeve A (1), the other end outer shroud ring set has outer adapter sleeve B (10), and this core pipe (9) is connected and fixed as overall structure by bonding with described outer adapter sleeve B (10);
Outside the termination of described outer adapter sleeve A (1) ring set core pipe (9) one end, ring surface convexes with the protruding outer shroud of outer adapter sleeve A (18), the interior ring surface of its correspondence is concaved with at least two recess grooves that are parallel to each other, and this O RunddichtringO C (17) and O RunddichtringO D (19) embed respectively in different recess grooves; Outside the termination of described outer adapter sleeve B (10) ring set core pipe (9) one end, ring surface convexes with the protruding outer shroud of outer adapter sleeve B (11);
Described bellows (16) ring set is gone up and is positioned between this protruding outer shroud of outer adapter sleeve A (18) and both opposing end surfaces of the protruding outer shroud of outer adapter sleeve B (11) at core pipe (9), the overlapping inner outer shroud of correspondence that is overlapped on this protruding outer shroud of outer adapter sleeve A (18) and this protruding outer shroud of outer adapter sleeve B (11) in two ends of bellows (16), and be connected and fixed with corresponding outer shroud is bonding respectively;
Described plunger outer tube framework (2) ring set is at the outer shroud of this protruding outer shroud of outer adapter sleeve A (18), plunger outer tube framework (2) inner ring surface is provided with the annular notch that can withhold bellows (16) one side heads, and this plunger outer tube framework (2), the protruding outer shroud of outer adapter sleeve A (18) are connected and fixed by bonding;
The exterior ring cap of the described protruding outer shroud of outer adapter sleeve B (11) is provided with plunger inner tube framework (12), this plunger inner tube framework (12) inner ring surface is provided with the annular notch that can withhold bellows (16) one side heads, and this plunger inner tube framework (12), the protruding outer shroud of outer adapter sleeve B (11) are connected and fixed by bonding;
Described plunger inner tube (15) is tube structure, outer end is by the bonding outer ring surface that is fastened on this plunger inner tube framework (12), the inner outstanding outer shroud that is enclosed within bellows (16), this termination, the inner outer shroud is convexly equipped with and is equipped with the protruding outer shroud of plunger inner tube (4); The exterior ring cap of this plunger inner tube (15) outer end is provided with ring packing framework (13), the outer ring surface of this ring packing framework (13) is concaved with at least two recess grooves that are parallel to each other, and this O RunddichtringO A (8) and O RunddichtringO B (7) embed respectively in different recess grooves; The outer ring surface of the inwall of ring packing framework (13) and plunger inner tube (15) external end head is connected and fixed by bonding;
Described plunger outer tube (14) is cylinder-shaped structure, ring set is in this bellows (16) and plunger inner tube (15), the outer ring surface of one end and plunger outer tube framework (2) is connected and fixed by bonding, and the other end slides over the outer shroud of ring packing framework (13); The inner ring surface one of this plunger outer tube (14) convexes with anti-slip limited ring (5), and this anti-slip limited ring (5) is positioned between described ring packing framework (13) and the protruding outer shroud of plunger inner tube (4);
At least one fixedly reinforcement pins B (6) along even circumferential, distribute and connect plunger inner tube framework (12) and plunger inner tube (15) is fixed one end of plunger inner tube framework (12), plunger inner tube (15) and bellows (16) and the protruding outer shroud of outer adapter sleeve B (11) pin;
At least one fixedly reinforcement pins A (3) along even circumferential, distribute and connect plunger outer tube framework (2) and plunger outer tube (14) is fixed one end of plunger outer tube framework (2), plunger outer tube (14) and bellows (16) and the protruding outer shroud of outer adapter sleeve A (18) pin;
Described anticorrosion overcoat (21) axial cross section is shaped as the grooved tubular structure to a side opening, integrated ring is enclosed within the outer shroud of this outer adapter sleeve A (1) and this plunger outer tube (14), form a hollow space with this plunger outer tube (14) and the outer shroud that further extends to this outer adapter sleeve A (1), in described hollow space, one is inserted filled insulation (22);
Described filled insulation (22) global shape is the ladder tubular with large osculum, and osculum end contact is encircled the bonding anticorrosion overcoat framework B (23) being connected and fixed respectively with in outer adapter sleeve A (1) outer shroud and anticorrosion overcoat (21); Big opening end contact is encircled the bonding anticorrosion overcoat framework A (20) being connected and fixed respectively with in plunger outer tube (14) outer shroud and anticorrosion overcoat (21);
The pipeline of connection is installed in the extension of described outer adapter sleeve A (1) and the anticorrosion thermal insulating warm-keeping layer filled insulation (22) of plunger outer tube (14) outer shroud is finally structure as a whole; The outer shroud of the pipeline that described outer adapter sleeve B (10) and extension installation connect arranges the anticorrosion thermal insulating warm-keeping layer of integrative-structure.
2. expansion device for plastic pipe according to claim 1, the two ends that it is characterized in that this bellows (16) button respectively that meets at right angles is overlapped on the corresponding inner outer shroud of this protruding outer shroud of outer adapter sleeve A (18) and this protruding outer shroud of outer adapter sleeve B (11), and is connected and fixed with corresponding anchor ring is bonding respectively.
3. expansion device for plastic pipe according to claim 1 and 2, is characterized in that this bonding being connected and fixed adopts the bonding of chemical agent to be connected and fixed.
4. expansion device for plastic pipe according to claim 1, the sectional shape that it is characterized in that this protruding outer shroud of outer adapter sleeve A (18) is rectangle; The sectional shape of this protruding outer shroud of outer adapter sleeve B (11) is rectangle.
5. expansion device for plastic pipe according to claim 1, the sectional shape that it is characterized in that this plunger outer tube framework (2) is rectangle; The sectional shape of this plunger inner tube framework (12) is rectangle.
6. expansion device for plastic pipe according to claim 1, one end insertion that it is characterized in that this bellows (16) is fixed between this plunger inner tube framework (12) and the protruding outer shroud of outer adapter sleeve B (11) surface of contact, and the other end of this bellows (16) inserts and is fixed between this plunger outer tube framework (2) and the protruding outer shroud of outer adapter sleeve A (18) surface of contact.
7. expansion device for plastic pipe according to claim 1, the sectional shape that it is characterized in that the protruding outer shroud of this plunger inner tube (4) is rectangle; The sectional shape of this anti-slip limited ring (5) is rectangle.
8. expansion device for plastic pipe according to claim 1, is characterized in that this bellows (16) is arranged in the annular space that one end that described core pipe (9) becomes to lean out shape with this plunger inner tube (15) surrounds.
9. expansion device for plastic pipe according to claim 1, is characterized in that this core pipe (9), outer adapter sleeve B (10), the protruding outer shroud of outer adapter sleeve B (11), plunger inner tube framework (12), with the plunger inner tube (15) of the protruding outer shroud of plunger inner tube (4) and with the ring packing framework (13) of O RunddichtringO A (8) and O RunddichtringO B (7), connects as one structure; Form when core pipe (9) one end is subject to that axial thermal expansion power is crowded to be pushed away, described outer adapter sleeve B (10), core pipe (9), with the protruding outer shroud of plunger inner tube (4) and be connected to plunger inner tube (15) on plunger inner tube framework (12) and with the ring packing framework (13) of O RunddichtringO A (8) and O RunddichtringO B (7) by the protruding outer shroud of outer adapter sleeve B (11) but this bellows (16) of contact self plastic deformation structure of coaxial synchronous integrated moving vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080046.5A CN102720912B (en) | 2011-03-31 | 2011-03-31 | Plastic pipeline expansion piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080046.5A CN102720912B (en) | 2011-03-31 | 2011-03-31 | Plastic pipeline expansion piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720912A CN102720912A (en) | 2012-10-10 |
| CN102720912B true CN102720912B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110080046.5A Expired - Fee Related CN102720912B (en) | 2011-03-31 | 2011-03-31 | Plastic pipeline expansion piece |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133812A (en) * | 2013-03-26 | 2013-06-05 | 江苏亚星波纹管有限公司 | Novel pipeline compensator |
| RU2640136C2 (en) * | 2016-02-25 | 2017-12-26 | Закрытое акционерное общество "СМИТ-ГРУПП" | Expansion joint for channelless pipe laying |
| RU168328U1 (en) * | 2016-02-25 | 2017-01-30 | Закрытое акционерное общество "СМИТ-ГРУПП" | DEVICE FOR COMPENSATING THE TEMPERATURE EXPANSION OF THE HEATING NETWORK PIPELINE |
| RU181518U1 (en) * | 2017-06-09 | 2018-07-17 | Общество с ограниченной ответственностью "Белэнергомаш - БЗЭМ" | Thermally insulated bellows expansion device |
| CN107542801A (en) * | 2017-10-09 | 2018-01-05 | 中冶赛迪装备有限公司 | A kind of fan-shaped section roller connecting hose |
| CN110925524B (en) * | 2019-12-10 | 2021-01-29 | 中国商用飞机有限责任公司 | Displacement compensation device for heat insulation layer of high-pressure pipeline and installation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152014A (en) * | 1978-01-30 | 1979-05-01 | Soeffker Eldred E | In-line hose swivel |
| EP0692665A1 (en) * | 1994-07-14 | 1996-01-17 | RAFELD KUNSTSTOFFTECHNIK GmbH & Co. KG | Compensator for pipes |
| KR100415121B1 (en) * | 2003-09-24 | 2004-01-16 | (주)용전 | Coupling structure of synthetic resin pipe using injection molding |
| CN101245884A (en) * | 2008-03-26 | 2008-08-20 | 江苏亿丰机械制造有限公司 | High temperature compensator |
| CN201954176U (en) * | 2011-03-31 | 2011-08-31 | 陈墅庚 | Expansion device for plastic pipe |
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2011
- 2011-03-31 CN CN201110080046.5A patent/CN102720912B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152014A (en) * | 1978-01-30 | 1979-05-01 | Soeffker Eldred E | In-line hose swivel |
| EP0692665A1 (en) * | 1994-07-14 | 1996-01-17 | RAFELD KUNSTSTOFFTECHNIK GmbH & Co. KG | Compensator for pipes |
| KR100415121B1 (en) * | 2003-09-24 | 2004-01-16 | (주)용전 | Coupling structure of synthetic resin pipe using injection molding |
| CN101245884A (en) * | 2008-03-26 | 2008-08-20 | 江苏亿丰机械制造有限公司 | High temperature compensator |
| CN201954176U (en) * | 2011-03-31 | 2011-08-31 | 陈墅庚 | Expansion device for plastic pipe |
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|---|---|
| CN102720912A (en) | 2012-10-10 |
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