CN203770927U - Novel composite type pipeline compensator - Google Patents

Abstract

The utility model discloses a novel composite type pipeline compensator and belongs to the technical field of heat distribution pipeline compensation devices. An outer casing pipe end socket is arranged on the outer ring of a pipe A, the outer ring of the pipe A is coaxially sleeved with a pipe B, the surface of the outer ring of the pipe A is sleeved with a corrugated pipe, the two ends of the corrugated pipe are connected with and fixed to the pipe A and the pipe B in a fastened mode, an outer pipe sleeve is arranged outside a sealing base, the structure that the integrally-arranged outer casing pipe end socket of the pipe A and the end, comprising one end of the corrugated pipe, of the outer casing pipe are integrated is formed, and the whole structure can coaxially synchronously move in the axial direction when being squeezed and pushed by axial heat expansion force. By the adoption of the structure, the novel composite type pipeline compensator has the advantages that pipeline stress is reduced, the sealing performance is enhanced, the pressure bearing capacity is improved, the large compensation quantity can be achieved, and the application range is wide.

Description

Novel combined pipeline compensator

Technical field

The utility model relates to a kind of novel combined pipeline compensator, belongs to the technical field of heat distribution pipeline compensation device, belongs to specifically the technical field of the heat distribution pipeline compensation device structure using in the industries such as oil, chemical industry, light industry, heating power, metallurgy.

Background technique

The compensation of pipeline mode of prior art common are following several: 1. traditional natural U-bend formula, 2. spherical compensator, 3. sleeve expansion joint, 4. FlexbleJoint, 5. whirl compensator.Wherein: spherical compensator cost is too high, and domestic production spherical compensator performance is general, and crushing is larger; FlexbleJoint in actual applications pipe stress is excessive, has all the time potential safety hazard in conduit running; And with adopt original I I shape nature compensation way the same invest and the pressure loss all larger; Structure and the sealability of existing sleeve expansion joint are not good enough, and Seepage is more general, weaker aspect anticorrosion link yet; Whirl compensator performance is more outstanding; Have that compensation rate is large, flexible arrangement, particularly in long defeated aerial pipeline, application advantageization is more obvious; But also Shortcomings: the one, the junction excesssive gap of inner tube and reducer pipe, can produce eddy current at this position in flowing medium motion, has so just increased the pressure loss of flowing medium.The 2nd, whirl compensator, because structure is working principle radially, must take certain space when application is arranged in pipeline; And every group of compensator mounting points all must add drain valve; Cost and the crushing of pipe network are increased so again; On buried pipeline, cannot generally apply especially at all; Particularly existing spherical compensator, sleeve expansion joint, FlexbleJoint, whirl compensator are 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 utility model provides a kind of novel combined pipeline compensator.To realize the deficiency that solves existing several types compensator; Reach elimination pipe stress, strengthen sealability, improve bearing capacity, and possess preservative efficacy, can realize large compensation amount, need not the occupying volume external space, multifunctional characteristics applied widely; Realize less investment, operating cost is low simultaneously, makes pipe network both safe and reliable to operation, plays again energy-conservation object.

In order to achieve the above object, the technical solution of the utility model is:

A kind of novel combined pipeline compensator, wherein: comprise pipe B, anti-slip position-arresting ring, countersunk screw, Sealing, sealing seat, bellows, corrosion-proof lining, pipe A, nut, steel ball A, seal gland flange, Sealing framework, steel ball B, outer sleeve, outer sleeve end socket and pressure ring;

Described pipe A becomes this pipe A coaxially to insert the structure of this pipe B with described pipe B;

The reducer pipe structure that described pipe A is cylindric integral type, the internal diameter of this pipe A reducing end is greater than the internal diameter of non-reducing end; The inner that the non-reducing end of this pipe A inserts this pipe B;

Described outer sleeve end socket is circular butterfly-like structure, its butterfly-shaped center is provided with the circular hole that diameter is greater than pipe A reducing end external diameter, and the setting of one hitch or the fastening outer ring surface that is arranged on this pipe A reducing end, the outer shroud of the interior ring of this outer sleeve end socket and this pipe A reducing end is fastenedly connected;

Described pipe B is column circular tube structure, and the inner coaxial rings of this pipe B is enclosed within the outer shroud of the non-reducing end of pipe A; The outer ring surface coaxial rings cover of this pipe B has seal gland flange, seal framework and this pressure ring; Seal framework between seal gland flange and this pressure ring and with this pipe B outside ring surface be fastenedly connected;

Described pressure ring entirety is the circle structure that cross section is rectangle, be positioned at this pipe B inner end outer shroud and be fastenedly connected with the outer ring surface of end, this pipe B the inner;

Described Sealing framework outer shroud epirelief is provided with the sealing seat of integrative-structure; The seal is that cross section is the loop configuration of rectangle, and ring set is at the outer shroud of seal framework, two ends respectively with seal gland flange and sealing seat contact;

Described seal gland flange is fastenedly connected and is integrated by this countersunk screw and nut and seal framework;

Described outer sleeve is tubular construction, and coaxial rings is enclosed within the outer shroud of seal gland flange, seal framework and bellows, and one end and this outer sleeve end socket are fastenedly connected, and the other end end is wholely set the anti-slip position-arresting ring of hook formation; Sealing seat is equipped with an annular groove outward, and a plurality of described steel ball B are positioned at the inwall of groove this outer sleeve of contact; The inwall of this outer sleeve is provided with this corrosion-proof lining;

The outer annular groove that is equipped with of described seal gland flange, a plurality of described steel ball A are positioned at the inwall of this annular groove this outer sleeve of contact;

Described corrugated pipe ring is enclosed within the outer shroud of this pipe A; And between this pipe A and this outer sleeve, in the circular hole at the circular butterfly-shaped center of this bellows one end and this outer sleeve end socket, ring is fastenedly connected fixing; The interior ring of the other end and this pressure ring is fastenedly connected the outer shroud that is fixed on pipe B in the lump;

Form this outer sleeve end socket that seal gland flange, seal framework and this pressure ring that described pipe B comprises that its outer shroud is connected and fixed and described pipe A comprise that its outer shroud is connected and fixed and this outer sleeve be subject to that axial thermal expansion power squeezes can be with the plastic deformation of this bellows structure that coaxial synchronous entirety relatively moves vertically while pushing away.

In the circular hole at the circular butterfly-shaped center of this outer sleeve end socket, ring is together fastenedly connected the outer shroud at this pipe A by welding manner with one end of this bellows.

This outer sleeve end socket is arranged at the 60-80 millimeter place of this pipe A reducing end and reducing transition arcs portion jointing place.

Seal gland flange entirety is circular groove structure, and cross section is L shaped; One end of the termination contact seal of this L shaped minor face, this L shaped long limit end face is along an even circumferential distributive plural through hole penetrating for this countersunk screw; Seal gland flange is equipped with an annular groove outside L shaped long edge, and a plurality of described steel ball A are positioned at the inwall of this annular groove this outer sleeve of contact.

This anti-slip position-arresting ring entirety, for the loop configuration that sectional shape is rectangle, is wholely set the termination at this outer sleeve, and in this anti-slip position-arresting ring, ring diameter is less than the outer ring diameter of seal gland flange.

Seal framework entirety is flexuose circular groove structure for cross section; This zigzag radially minor face is described sealing seat; Radially the end face on long limit is along an even circumferential distributive plural recess that inserts or screw in for this countersunk screw in a zigzag for this, and this countersunk screw is fixedly connected with integral with this recess; The interior ring that seal framework is radially grown limit is in a zigzag fastenedly connected the outer ring surface at this pipe B by welding;

Described Sealing is positioned at seal gland flange, this outer sleeve inner wall, sealing seat sidewall is with the seal framework space that axially limit outer shroud surrounds in a zigzag and become contact state with each limit respectively.

This countersunk screw and this recess are fixedly connected by welding integral.

This corrosion-proof lining is stainless steel or teflon material.

Adopt the technical solution of the utility model integrated piping to be independent of each other each other in the time of heat expansion, shrinkage.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; And less investment, operating cost is low, has really reached and has made pipe network both safe and reliable to operation, again energy-conservation effect.

Brief description of the drawings

Fig. 1 is that the utility model absorbs the structural representation before thermal walking;

Fig. 2 is that the utility model absorbs the structural representation after thermal walking.

Description of reference numerals:

1. pipe B

2. anti-slip position-arresting ring

3. countersunk screw

4. Sealing

5. sealing seat

6. bellows

7. corrosion-proof lining

8. pipe A

9. nut

10. steel ball A

11. seal gland flanges

12. Sealing frameworks

13. steel ball B

14. outer sleeves

15. outer sleeve end sockets

16. pressure rings

C. after absorbing thermal walking, pipe A holds (heat insulation layer structure)

D. after absorbing thermal walking, pipe B holds (heat insulation layer structure)

Embodiment:

Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail as follows.

As depicted in figs. 1 and 2.A kind of novel combined pipeline compensator, wherein: comprise pipe B1, anti-slip position-arresting ring 2, countersunk screw 3, Sealing 4, sealing seat 5, bellows 6, corrosion-proof lining 7, pipe A8, nut 9, steel ball A10, seal gland flange 11, Sealing framework 12, steel ball B13, outer sleeve 14, outer sleeve end socket 15 and pressure ring 16;

Described pipe A8 becomes this pipe A8 coaxially to insert the structure of this pipe B1 with described pipe B1;

The reducer pipe structure that described pipe A8 is cylindric integral type, this pipe A8 is the integral type tubular construction that one end internal diameter is greater than the other end internal diameter, one end that internal diameter is large is called reducing end, one end that internal diameter is little is called non-reducing end, the structure that the one section of transition arcs portion (reducing transition arcs portion) between reducing end and non-reducing end pass through links into an integrated entity; The internal diameter of this pipe A8 reducing end is greater than the internal diameter of non-reducing end; The non-reducing end of this pipe A8 inserts the inner of this pipe B1, and (pipe B1 is circular tube structure, and one end is connected with outer tube, i.e. left end in Fig. 1; The other end is inner, i.e. right-hand member in Fig. 1);

Described outer sleeve end socket 15 entirety are for for circular butterfly-like structure or claim spheric structure, and cross section is arc, and opening is towards this pipe B1 direction, as opening left in Fig. 1; The interior ring of this butterfly-shaped center hole and one end of this bellows 6 are together fastenedly connected the outer shroud at this pipe A reducing end by welding.(circle of example in is as shown in Figure 1, Figure 2 butterfly-shaped, and cross section is cambered surface); Be wholely set or fastening setting (being for example welded and fixed) at the outer ring surface of this pipe A8 reducing end; The outer shroud of the inner ring surface of this outer sleeve end socket 15 and this pipe A8 reducing end is fastenedly connected; The interior ring of the circle structure of this outer sleeve end socket 15 and one end of this bellows 6 are together fastenedly connected the outer shroud at this pipe A8 reducing end by welding.This outer sleeve end socket 15 is arranged at the 60-80 millimeter place of this pipe A8 reducing end and reducing transition arcs portion jointing place, and better position is 65 millimeters of places.

Described pipe B1 is column circular tube structure, and the inner (right-hand member in Fig. 1) coaxial rings of this pipe B1 is enclosed within the outer shroud of the non-reducing end of pipe A8; The outer ring surface coaxial rings cover of this pipe B1 has seal gland flange 11, seal framework 12 and this pressure 16; Seal framework 12 is fastenedly connected fixing (being for example welded to connect fixing) between seal gland flange 11 and this pressure ring 16 and with the outer ring surface of this pipe B1; The fixed position of seal framework 12 can be apart from 200-210 millimeter place, the inner termination of this pipe B1.

Described pressure ring 16 is the circle structure that cross section is rectangle, be positioned at this pipe B1 inner end (or apart from 60-80 millimeter place, end) outer shroud and be fastenedly connected (being for example welded to connect) with the outer ring surface of the inner end of this pipe B1; Seal framework 12 outer shroud epireliefs are provided with the sealing seat 5 of integrative-structure; The loop configuration that the seal 4 is rectangle for cross section; Ring set is at the outer shroud of seal framework 12, two ends respectively with seal gland flange 11 and sealing seat 5 contacts;

Described seal gland flange 11 is fastenedly connected and is integrated with seal framework 12 by this countersunk screw 3 and nut 9; Seal gland flange 11 entirety are circular or circular groove structure, and cross section is L shaped; One end of termination (also can be described as casting die end) the contact seal 4 of this L shaped minor face, this L shaped long limit end face is along an even circumferential distributive plural through hole penetrating for this countersunk screw 3; The outer end of seal gland flange 11L shape minor face (or the outer shroud on L shaped long limit) is along being equipped with an annular groove outward, and a plurality of described steel ball B10 are positioned at the also inwall of this outer sleeve 14 of contact (actual immediate roof support should be this corrosion-proof lining 7) of this annular groove.These anti-slip position-arresting ring 2 entirety, for the loop configuration that sectional shape is rectangle, are wholely set in the termination of this outer sleeve 14, and the interior ring diameter of this anti-slip position-arresting ring 2 is less than the outer ring diameter of seal gland flange 11.

Described outer sleeve 14 is tubular construction, coaxial rings is enclosed within the outer shroud of seal gland flange 11, seal framework 12 and this outer sleeve end socket 15, one end and this outer sleeve end socket 15 are fastenedly connected (being welded to connect), and the other end end is wholely set or by being welded and fixed the anti-slip position-arresting ring 2 that is provided with hook formation; The outer annular groove that is equipped with of sealing seat 5, a plurality of described steel ball B13 are positioned at the also inwall of this outer sleeve 14 of contact (actual immediate roof support should be this corrosion-proof lining 7) of groove; The inwall of this outer sleeve 14 is provided with this corrosion-proof lining 7; This corrosion-proof lining 7 is made for the material of stainless steel or teflon material, inlays the inwall of fixing or being adhesively fixed on this outer sleeve 14.

Described bellows 6 ring sets are at the outer shroud of this pipe A8, and between this pipe A8 and this outer sleeve 14; One end (as left end in Fig. 1 and Fig. 2) of this bellows 6 is fastenedly connected fixing (being for example welded and fixed) with the interior ring of this pressure ring 16, and in fact one end of this bellows 6 and this pressure ring 16 are weldingly fixed on the outer shroud of this pipe B1 in the lump; The other end (as right-hand member in Fig. 1 and Fig. 2) of this bellows 6 and the interior ring of this outer sleeve end socket 15 are fastenedly connected fixing, and in fact the other end of this bellows 6 and this outer sleeve end socket 15 are weldingly fixed on the outer shroud of this pipe A8 in the lump;

Seal framework 12 is overall for cross section is flexuose circular groove structure, and notch is towards this pipe A8 mono-side or claim right side (as depicted in figs. 1 and 2); Described zigzag can be understood like this; This zigzag is parallel to axial limit (axially limit) by two limits perpendicular to axial direction (longitudinal edge) and one and forms, this axial limit is between two longitudinal edges, three limits be structure as a whole and two longitudinal edges not isometric, be called radially long limit and minor face radially;

This zigzag radially minor face is described sealing seat 5; This zigzag is radially grown the end face on limit along an even circumferential distributive plural recess that inserts or screw in for this countersunk screw 3, and this countersunk screw 3 is fixedly connected with integral with this recess; The interior ring that seal framework 12 is radially grown limit is in a zigzag fastenedly connected the outer ring surface at this pipe B1 by welding; This countersunk screw 3 is fixedly connected by welding integral with this recess.

Described Sealing 4 is positioned at seal gland flange 11 (termination of L shaped minor face), these outer sleeve 14 inwalls, sealing seat 5 sidewalls (radially sidewall or the inwall of minor face of seal framework 12 zigzag) are with seal framework 12 space that axially limit outer shrouds surround in a zigzag and become respectively contact state (as depicted in figs. 1 and 2) with each limit.

Form this outer sleeve end socket 15 that seal gland flange 11 that described pipe B1 comprises that its outer shroud is connected and fixed, seal framework 12, this pressure ring 16 and bellows 6 and described pipe A8 comprise that its outer shroud is connected and fixed and this outer sleeve 14 and squeeze the structure that coaxial synchronous entirety relatively moves vertically while pushing away being subject to axial thermal expansion power; What is called relatively moves this pipe B1 to the right or medial movement, and this pipe A8 or medial movement, also can be described as a kind of this pipe B1 and this pipe A8 and form the state of interfix left simultaneously.

Adopt such structure to have the pipe stress of reducing, strengthen sealability, possess preservative efficacy, can realize large compensation amount, Applicable scope is wider, and construction investment and operating cost are lower, really can make that pipe network operation is safe and reliable, the multifunctional characteristics of energy-saving and emission-reduction.

The technical solution of the utility model implement time due to pipe A8, outer sleeve end socket 15, outer sleeve 14, (comprise that corrosion-proof lining 7 and anti-slip position-arresting ring 2 are finally structure as a whole; Pipe B1, Sealing framework 12, sealing seat 5, Sealing 4, seal gland flange 11 are finally structure as a whole; Bellows 6 two ends connect as one structure with pipe A8 and pipe B1 respectively; Comprise and becoming one structure by technological methodes such as for example welding.

In the time of assembling:

The first step is the specified position to the inner outer shroud of pipe A by pipe B hitch, then bellows-sheathed is installed to the specified position of pipe B and pipe A outer shroud, and by welding procedure, the two ends of bellows are welded and fixed with the specified position of pipe B and pipe A outer shroud respectively.

Second step is the specified position to pipe A (comprising bellows termination) outer shroud by outer sleeve end socket hitch circular butterfly, (as shown in Figure 1), and by welding procedure, outer sleeve end socket and pipe A are welded and fixed, then the specified position to pipe B (comprising bellows termination) outer shroud by circular pressure ring hitch, (as shown in Figure 1), and by welding procedure pressure ring and pipe B are welded and fixed.

The 3rd step comprises that with several countersunk screws the Sealing framework hitch of sealing seat is to the specified position of pipe B outer shroud exterior edge face, and by welding procedure, Sealing framework and pipe B is welded and fixed; Then steel ball A is placed in the recess groove of sealing seat outer shroud, then the outer sleeve cover with anti-slip position-arresting ring is not installed to the Sealing framework outer shroud of (comprising bellows), make outer sleeve become overlap joint shape with outer sleeve end socket simultaneously, and by welding procedure, outer sleeve and outer sleeve end socket are welded and fixed.

The 4th step by annular Sealing hitch to the common chamber forming between Sealing framework outside and outer sleeve inner wall, the then outside from the outer shroud hitch of pipe B to Sealing the annular seal gland flange with steel ball B, and make the L shaped casting die end of seal gland flange be tight against Sealing; Then link closely and be connected and fixed with several countersunk screws of Sealing framework exterior edge face setting respectively by several nuts.

The 5th step is weldingly fixed on the termination of outer sleeve by seal gland flange one end by welding procedure by anti-slip position-arresting ring, finally carries out the corrosion resistant clad operation of exsertion part; (comprising spraying heatproof, corrosion-inhibiting coating).

This technique makes:

1. pipe A, outer sleeve framework, outer sleeve, (comprising corrosion-proof lining) and anti-slip position-arresting ring described in are fixing integrative-structure; Can carry out synchronous left and right axial displacement with bellows plastic deformation necessary condition is provided.

2. the bellows two ends of passing through described in are welded and fixed and finally become an overall structure with pipe B outer shroud and pipe A outer shroud respectively; First determined that whole equipment is without leakage way; Add the multi-sealed of Sealing anchor ring binding end face; Sealability is fully guaranteed.

3. Sealing described in (referred to as sliding seal) has possessed double effects simultaneously, and the one, play (especially for directly buried pipeline time) and can stop underground water to enter the effect of the cavity space at bellows position; The 2nd, play the self-lubricating function when parts such as pipe A carry out synchronous left and right axial displacement.

4. the steel ball A described in and steel ball B have played coaxial righting when the parts such as pipe A carry out synchronous left and right axial displacement, have reduced effect of frictional resistance.

5. the large and small reducing body of the pipe A described in can meet the guide functions of bellows inner side; Can meet again the requirement being welded to connect with footpath with pipeline.

6. the anti-slip position-arresting ring that the outer sleeve termination described in is integrally formed with has played the anti-slip effect when parts such as pipe A carry out synchronous left and right axial displacement, has further improved the safety guarantee of equipment operation.

Claims (8)

1. a novel combined pipeline compensator, is characterized in that: comprise pipe B (1), anti-slip position-arresting ring (2), countersunk screw (3), Sealing (4), sealing seat (5), bellows (6), corrosion-proof lining (7), pipe A (8), nut (9), steel ball A (10), seal gland flange (11), Sealing framework (12), steel ball B (13), outer sleeve (14), outer sleeve end socket (15) and pressure ring (16);

Described pipe A (8) and described pipe B (1) both become this pipe A (8) coaxially to insert the structure of this pipe B (1);

The reducer pipe structure that described pipe A (8) is cylindric integral type, the internal diameter of this pipe A (8) reducing end is greater than the internal diameter of non-reducing end; The non-reducing end of this pipe A (8) inserts the inner of this pipe B (1);

Described outer sleeve end socket (15) is circular butterfly-like structure, its butterfly-shaped center is provided with the circular hole that diameter is greater than pipe A (8) reducing end external diameter, and the setting of one hitch or the fastening outer ring surface that is arranged on this pipe A (8) reducing end, the outer shroud of the interior ring of this outer sleeve end socket (15) and this pipe A (8) reducing end is fastenedly connected;

Described pipe B (1) is column circular tube structure, and the inner coaxial rings of this pipe B (1) is enclosed within the outer shroud of the non-reducing end of pipe A (8); The outer ring surface coaxial rings cover of this pipe B (1) has seal gland flange (11), seal framework (12) and this pressure ring (16); Seal framework (12) is positioned between seal gland flange (11) and this pressure ring (16) and with the outer ring surface of this pipe B (1) and is fastenedly connected;

Described pressure ring (16) entirety is the circle structure that cross section is rectangle, be positioned at this pipe B (1) inner end outer shroud and be fastenedly connected with the outer ring surface of the inner end of this pipe B (1);

Described Sealing framework (12) outer shroud epirelief is provided with the sealing seat (5) of integrative-structure; The loop configuration that the seal (4) is rectangle for cross section, ring set is at the outer shroud of seal framework (12), two ends respectively with seal gland flange (11) and sealing seat (5) contact;

Described seal gland flange (11) is fastenedly connected and is integrated with seal framework (12) by this countersunk screw (3) and nut (9);

Described outer sleeve (14) is tubular construction, coaxial rings is enclosed within the outer shroud of seal gland flange (11), seal framework (12) and bellows (6), one end and this outer sleeve end socket (15) are fastenedly connected, and the other end end is wholely set the anti-slip position-arresting ring (2) of hook formation; The outer annular groove that is equipped with of sealing seat (5), a plurality of described steel ball B (13) are positioned at the inwall of groove this outer sleeve of contact (14); The inwall of this outer sleeve (14) is provided with this corrosion-proof lining (7);

The outer annular groove that is equipped with of described seal gland flange (11), a plurality of described steel ball A (10) are positioned at the inwall of this annular groove this outer sleeve of contact (14);

Described bellows (6) ring set is at the outer shroud of this pipe A (8); And be positioned between this pipe A (8) and this outer sleeve (14), in the circular hole at this bellows (6) one end and this circular butterfly-shaped center of outer sleeve end socket (15), ring is fastenedly connected fixing; The interior ring of the other end and this pressure ring (16) is fastenedly connected the outer shroud that is fixed on pipe B (1) in the lump;

Forming this outer sleeve end socket (15) that seal gland flange (11), seal framework (12) and this pressure ring (16) that described pipe B (1) comprises that its outer shroud is connected and fixed and described pipe A (8) comprise that its outer shroud is connected and fixed and this outer sleeve (14) can be with the plastic deformation structure that coaxial synchronous entirety relatively moves vertically of this bellows (6) in the time being subject to that axial thermal expansion power is crowded to be pushed away.

2. novel combined pipeline compensator according to claim 1, is characterized in that the interior ring of circular hole at this circular butterfly-shaped center of outer sleeve end socket (15) is together fastenedly connected the outer shroud at this pipe A (8) by welding manner with one end of this bellows (6).

3. novel combined pipeline compensator according to claim 1 and 2, is characterized in that this outer sleeve end socket (15) is arranged at the 60-80 millimeter place of this pipe A (8) reducing end and reducing transition arcs portion jointing place.

4. novel combined pipeline compensator according to claim 1, is characterized in that seal gland flange (11) entirety is for circular groove structure, and cross section is L shaped; One end of the termination contact seal (4) of this L shaped minor face, this L shaped long limit end face is along an even circumferential distributive plural through hole penetrating for this countersunk screw (3); Seal gland flange (11) is equipped with an annular groove outside L shaped long edge, and a plurality of described steel ball A (10) are positioned at the inwall of this annular groove this outer sleeve of contact (14).

5. novel combined pipeline compensator according to claim 1, it is characterized in that the loop configuration that this anti-slip position-arresting ring (2) entirety is rectangle for sectional shape, be wholely set in the termination of this outer sleeve (14), the interior ring diameter of this anti-slip position-arresting ring (2) is less than the outer ring diameter of seal gland flange (11).

6. novel combined pipeline compensator according to claim 1, is characterized in that seal framework (12) entirety is flexuose circular groove structure for cross section; This zigzag radially minor face is described sealing seat (5); Radially the end face on long limit is along an even circumferential distributive plural recess that inserts or screw in for this countersunk screw (3) in a zigzag for this, and this countersunk screw (3) is fixedly connected with integral with this recess; The interior ring that seal framework (12) is radially grown limit is in a zigzag fastenedly connected the outer ring surface at this pipe B (1) by welding;

Described Sealing (4) is positioned at seal gland flange (11), this outer sleeve (14) inwall, sealing seat (5) sidewall is with seal framework (12) space that axially limit outer shroud surrounds in a zigzag and become contact state with each limit respectively.

7. novel combined pipeline compensator according to claim 6, is characterized in that this countersunk screw (3) and this recess are fixedly connected by welding integral.

8. novel combined pipeline compensator according to claim 1, is characterized in that this corrosion-proof lining (7) is for stainless steel or teflon material.