CN213982463U

CN213982463U - CPVC, flexible compensator of PVC pipeline

Info

Publication number: CN213982463U
Application number: CN202022731158.XU
Authority: CN
Inventors: 梁宝文; 秦永堂
Original assignee: Guangzhou Yili Construction Electromechanical Engineering Co ltd
Current assignee: Guangdong Yili Jian'an Engineering Co.,Ltd.
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-17
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a technical field of flexible compensator of pipeline, to traditional CPVC, the relatively poor problem of PVC pipeline flexible compensator leakproofness, a CPVC, the flexible compensator of PVC pipeline, including outer tube and interior sleeve pipe, interior sheathed tube one end is provided with annular arch, annular arch cup joints the slip with the outer tube, the bellied outer peripheral face of annular still overlaps and is equipped with the sealing washer, the inner wall butt of sealing washer and outer tube, the one end that interior sleeve pipe and outer tube kept away from each other all is provided with flange, CPVC, the flexible compensator of PVC pipeline still includes the tetrafluoro bellows, the outer peripheral face at the outer tube is established to the pot head of tetrafluoro bellows, the pot head that the outer tube was kept away from to the tetrafluoro bellows is established and is fixed at interior sheathed tube outer peripheral face. This application has the effect that improves CPVC, the leakproofness of the flexible compensator of PVC pipeline.

Description

CPVC, flexible compensator of PVC pipeline

Technical Field

The application relates to the technical field of pipeline telescopic compensators, in particular to a CPVC and PVC pipeline telescopic compensator.

Background

Because medium in the heat supply pipeline can propagate various heats to the pipeline inner wall when flowing in the pipeline, when the temperature is higher, cause deformation or destruction to the junction of pipeline easily, appear for reducing this kind of phenomenon, people often install the flexible compensator of pipeline at the junction of heat supply pipeline to the thermal extension of compensation pipeline, thereby reduce the stress of pipe wall and the effort that acts on valve member or supporting structure.

The pipeline expansion compensator is usually made of high-temperature-resistant CPVC and PVC. The telescopic compensator for the pipeline generally comprises an inner sleeve and an outer sleeve, the inner sleeve is sleeved in the outer sleeve, a sealing ring is sleeved on the inner sleeve generally, and the sealing ring is expanded by heat and is tightly attached to the inner wall of the outer sleeve in use, so that liquid can flow into the inner sleeve from the outer sleeve better and cannot flow out from a gap between the outer sleeve and the inner sleeve easily.

Aiming at the related technology, the sealing ring in the related technology is usually made of rubber materials, and the sealing ring is easy to age after being used for a long time, so that the sealing effect is lost, and the leakage condition of the CPVC and PVC pipeline telescopic compensator is easy to cause. The inventor considers that the traditional CPVC and PVC pipeline expansion compensator has the defect of poor sealing effect.

SUMMERY OF THE UTILITY MODEL

In order to improve the sealed effect of CPVC, the flexible compensator of PVC pipeline, this application provides a CPVC, the flexible compensator of PVC pipeline.

The application provides a CPVC, flexible compensator of PVC pipeline adopts following technical scheme:

the utility model provides a CPVC, PVC pipeline compensator that stretches out and draws back, includes outer tube and interior sleeve pipe, interior sheathed tube one end is provided with annular arch, annular arch cup joints the slip with the outer tube, the bellied outer peripheral face of annular still is equipped with the sealing washer, the inner wall butt of sealing washer and outer tube, the one end of keeping away from each other of interior sleeve pipe and outer tube all is provided with flange, and CPVC, PVC pipeline compensator that stretches out and draws back still includes the tetrafluoro bellows, the outer peripheral face at the outer tube is established to the pot head of tetrafluoro bellows, the end cover that the outer tube was kept away from to the tetrafluoro bellows is established and is fixed at interior sheathed tube outer peripheral face.

By adopting the technical scheme, when the CPVC and PVC pipeline telescopic compensator are required to be installed, the outer sleeve and the inner sleeve are respectively moved towards opposite directions, the inner sleeve and the outer sleeve are installed on the corresponding pipeline through the connecting flange, when a medium flows into the CPVC and PVC pipeline telescopic compensator, the sealing ring is heated to expand and is tightly propped against the inner wall of the outer sleeve, the sealing of the sleeving part of the inner sleeve and the outer sleeve is realized, the medium flows into the corresponding pipeline through the CPVC and PVC pipeline telescopic compensator, through the arrangement of the tetrafluoro bellows, when the inner sleeve and the outer sleeve move relatively, the tetrafluoro bellows deform along with the expansion, and the tetrafluoro bellows is not easy to damage through the structure of the tetrafluoro bellows; simultaneously, utilize the tetrafluoro bellows to have good ageing resistance ability and high temperature resistant and high pressure resistant ability, be favorable to increasing the leakproofness that outer tube and interior sleeve pipe cup jointed the department for the medium of CPVC, the flexible compensator of PVC pipeline of flowing through is difficult for revealing, makes when the sealing washer ageing damage, and CPVC, the flexible compensator of PVC pipeline still can keep the leakproofness.

Preferably, the outer sleeve and the inner sleeve are respectively provided with a first fixing piece and a second fixing piece for fixing the tetrafluoro bellows.

Through adopting above-mentioned technical scheme for the tetrafluoro bellows can be better and fix between interior sleeve pipe and outer tube, make the tetrafluoro bellows be difficult for droing, be favorable to better promoting the leakproofness that interior sleeve pipe and outer tube cup jointed the department, make difficult follow the department of cup jointing of interior sleeve pipe and outer tube outflow when the medium flows.

Preferably, the first fixing piece is a first hoop and is used for fixing one end of the tetrafluoro bellows on the peripheral surface of the outer sleeve; the second fixing piece is a second hoop and is used for fixing one end, far away from the first hoop, of the tetrafluoro corrugated pipe on the peripheral surface of the inner sleeve.

By adopting the technical scheme, the polytetrafluoroethylene corrugated pipe fixed between the inner sleeve and the outer sleeve is more difficult to fall off due to the arrangement of the first anchor ear and the second anchor ear; simultaneously, when the tetrafluoro bellows damaged, through the setting of first staple bolt and second staple bolt for the tetrafluoro bellows is changeed in the change, and then makes the tetrafluoro bellows can seal the department of cup jointing of interior sleeve pipe and outer tube better.

Preferably, a limiting groove for clamping the sealing ring is arranged on the outer peripheral surface of the annular bulge.

Through adopting above-mentioned technical scheme, through the setting of spacing groove for when interior sleeve pipe and outer tube relative movement, the difficult displacement that produces of sealing washer on the annular bulge is established to the cover, and then makes the sealing washer difficult drop from the annular bulge, makes the inner wall that the sealing washer can better support tight outer tube, and then makes the medium that the medium flowed into CPVC, the flexible compensator of PVC pipeline the medium be difficult for following outer tube and interior sheathed connection department outflow.

Preferably, the outer sleeve is further provided with a limiting piece for limiting the inner sleeve to be separated from the outer sleeve.

By adopting the technical scheme, the outer sleeve and the inner sleeve are not easy to separate from each other in the mutual moving process, and the outer sleeve and the inner sleeve can move more stably.

Preferably, the locating part includes the spacing ring, the spacing ring internal diameter is less than the bellied external diameter of annular, the outer peripheral face and the outer tube inner wall joint of spacing ring set up, the inner wall of spacing ring is provided with a plurality of mounting grooves, the mounting groove internal rotation is connected with the ball, the outer peripheral face and the interior sheathed tube outer peripheral face butt of ball.

By adopting the technical scheme, the inner sleeve is not easy to slide out of the outer sleeve in the moving process, the situation that the inner sleeve slides out of the outer sleeve in the moving process to cause reinstallation is reduced, and the inner sleeve slides more stably; simultaneously, through the setting of ball outer peripheral face and interior sleeve pipe outer peripheral face butt for interior sleeve pipe is more simple and convenient when sliding each other with the outer tube.

Preferably, the sealing ring is a square sealing ring.

Through adopting above-mentioned technical scheme, setting through square seal ring for when the sealing washer is heated the inflation, be favorable to increasing the area of contact of square seal ring and inner wall, and then be favorable to increasing the leakproofness of interior sleeve pipe and outer tube connection department, make the medium of CPVC, the flexible compensator of PVC pipeline of flowing through more difficult revealing.

Preferably, the sealing rings are arranged in a plurality of numbers, and the sealing rings are uniformly arranged on the peripheral surface of the annular bulge.

Through adopting above-mentioned technical scheme, through the setting of a plurality of sealing washers, be favorable to better improving the leakproofness that outer tube and interior sleeve pipe cup jointed the department for the medium is more difficult for flowing out in the department of cup jointing of interior sleeve pipe and outer tube.

Preferably, the edges of the end of the annular protrusion, which is far away from the connecting flange of the inner sleeve, are chamfered.

By adopting the technical scheme, the inner sleeve can be more easily inserted into the outer sleeve, so that the inner sleeve and the outer sleeve can be conveniently assembled, and the efficiency of assembling the outer sleeve and the inner sleeve can be improved, so that the assembly of the outer sleeve and the inner sleeve is simpler and more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. due to the arrangement of the sealing ring and the tetrafluoro bellows, when a medium flows into the CPVC or PVC pipeline telescopic compensator, the medium is not easy to flow out of the sleeving part of the inner sleeve and the outer sleeve, so that the sealing property of the sleeving part of the inner sleeve and the outer sleeve is favorably kept;

2. through the arrangement of the limiting part, when the inner sleeve and the outer sleeve move mutually, the inner sleeve is not easy to separate from the outer sleeve;

3. through the setting of first staple bolt and second staple bolt for the fixed simple and convenient more of tetrafluoro bellows.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a schematic view of the internal structure of the embodiment of the present application.

Description of reference numerals: 1. an inner sleeve; 10. an annular projection; 101. a limiting groove; 102. a seal ring; 11. a connecting flange; 2. an outer sleeve; 31. a first hoop; 32. a second hoop; 4. a limiting member; 41. a limiting ring; 42. mounting grooves; 43. a ball bearing; 5. tetrafluoro bellows.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses CPVC, flexible compensator of PVC pipeline. Referring to fig. 1 and 2, including interior sleeve pipe 1 and outer tube 2, the one end of interior sleeve pipe 1 outer peripheral face is provided with annular arch 10, and annular arch 10 cup joints and slides in outer tube 2, and the outer peripheral face of annular arch 10 still overlaps and is equipped with a plurality of sealing washers 102, and CPVC, PVC pipeline expansion compensator still include tetrafluoro bellows 5, and the both ends of tetrafluoro bellows 5 cup joint respectively and fix the outer peripheral face at outer tube 2 and interior sleeve pipe 1.

Referring to fig. 1 and 2, the inner sleeve 1 and the outer sleeve 2 are provided with a connecting flange 11 at both ends thereof away from each other. The edge position chamfer of the annular bulge 10 far away from one end of the connecting flange 11 of the inner sleeve 1 ensures that the inner sleeve 1 is easier to insert into the outer sleeve 2, and is favorable for reducing the difficulty of assembling the inner sleeve 1 and the outer sleeve 2.

Referring to fig. 1 and 2, the outer sleeve 2 is provided with a first fixing member for fixing the tetrafluoro bellows 5, the first fixing member includes a first hoop 31, and the first hoop 31 is located on an outer circumferential surface of the outer sleeve 2 away from the connecting flange 11 of the outer sleeve 2 along the length direction and is used for fixing one end of the tetrafluoro bellows 5 on the outer circumferential surface of the outer sleeve 2.

Referring to fig. 1 and 2, the inner sleeve 1 is provided with a second fixing piece for fixing the tetrafluoro bellows 5, the second fixing piece includes a second hoop 32, and the second hoop 32 is located on the outer circumferential surface of the inner sleeve 1 close to the connecting flange 11 of the inner sleeve 1 along the length direction and is used for fixing one end of the tetrafluoro bellows 5 away from the first hoop 31 on the outer circumferential surface of the inner sleeve 1.

Referring to fig. 1 and 2, in this embodiment, the two sets of sealing rings 102 are provided, and the two sets of sealing rings 102 are both square sealing rings, which is beneficial to increase the contact area between the sealing rings 102 and the inner wall of the outer sleeve 2, and is beneficial to improve the sealing effect of the sealing rings 102. Two sets of sealing washer 102 along the length direction evenly distributed of annular bulge 10, the sunken spacing groove 101 that supplies sealing washer 102 joint cover to establish on the annular bulge 10 for when interior sleeve pipe 1 and outer tube 2 remove each other, the difficult aversion of sealing washer 102 of cover on the annular bulge 10, make sealing washer 102 can better with the inner wall butt of outer tube 2, make sealing washer 102 can better seal the department of cup jointing of interior sleeve pipe 1 and outer tube 2.

Referring to fig. 1 and fig. 2, still be provided with the locating part 4 of sleeve 1 roll-off in the restriction on the outer tube 2, locating part 4 includes spacing ring 41, the outer wall of spacing ring 41 and the outer wall chucking of outer tube 2 set up, and spacing ring 41 is located the protruding 10 one side that is close to sleeve 1 flange 11 in annular, the internal diameter of spacing ring 41 is less than the bellied 10 external diameter of annular, still be provided with a plurality of mounting grooves 42 on the inner wall of spacing ring 41, a plurality of mounting grooves 42 are about the axis evenly distributed of spacing ring 41, all rotate in the mounting groove 42 and be connected with ball 43, ball 43's outer peripheral face and sleeve 1's outer peripheral face butt, make sleeve 1 cup joint in the difficult follow outer tube 2 roll-off of one end of outer tube 2, and then make sleeve 1's slip more stable.

The implementation principle of the CPVC and PVC pipeline telescopic compensator provided by the embodiment of the application is as follows:

when the CPVC and PVC pipeline expansion compensator needs to be installed, one end of the tetrafluoro bellows 5 is sleeved on the outer peripheral surface of the inner sleeve 1 and fixed by the second hoop 32, the seal ring 102 is sleeved in the limit groove 101, one end of the inner sleeve 1 provided with the annular protrusion 10 is inserted into the outer sleeve 2, the outer wall of the limit ring 41 is clamped with the inner wall of the outer sleeve 2 by moving the limit ring 41, one end of the flexible bellows opposite to the first hoop 31 is fixed on the peripheral surface of the outer sleeve 2 by using the first hoop 31, the distance between the inner sleeve 1 and the outer sleeve 2 is moved, the inner sleeve 1 and the outer sleeve 2 are respectively connected to corresponding pipelines by the connecting flange 11, when a medium with higher heat flows into the CPVC and PVC pipeline expansion compensator, the heat makes the seal ring 102 expand and further abut against the inner wall of the outer sleeve 2, so that the sealing performance of the sleeved part of the outer sleeve 2 and the inner sleeve 1 is better, simultaneously; through the setting of tetrafluoro bellows 5, be favorable to further promoting the leakproofness of the department of cup jointing between outer tube 2 and the interior sleeve pipe 1 for the medium is more difficult for following outer tube 2 and interior sleeve pipe 1 and cup jointing the department and flowing out, is favorable to further promoting CPVC, the sealing performance of the flexible compensator of PVC pipeline.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a CPVC, flexible compensator of PVC pipeline which characterized in that: the utility model provides a CPVC, flexible compensator of PVC pipeline which characterized in that: including outer tube (2) and interior sleeve pipe (1), the one end of interior sleeve pipe (1) is provided with annular arch (10), annular arch (10) cup joints the slip with outer tube (2), the outer peripheral face of annular arch (10) still overlaps and is equipped with sealing washer (102), the inner wall butt of sealing washer (102) and outer tube (2), interior sleeve pipe (1) all is provided with flange (11) with the one end that outer tube (2) kept away from each other, CPVC, the flexible compensator of PVC pipeline still include tetrafluoro bellows (5), the outer peripheral face of outer tube (2) is established to a pot head of tetrafluoro bellows (5), the outer peripheral face of interior sleeve pipe (1) is established to a pot head that outer tube (2) was kept away from in tetrafluoro bellows (5).

2. A CPVC, PVC pipe telescopic compensator according to claim 1, characterized in that: and the outer sleeve (2) and the inner sleeve (1) are respectively provided with a first fixing piece and a second fixing piece for fixing the tetrafluoro bellows (5).

3. A CPVC, PVC pipe telescopic compensator according to claim 2, characterized in that: the first fixing piece is a first hoop (31) and is used for fixing one end of the tetrafluoro bellows (5) on the peripheral surface of the outer sleeve (2); the second fixing piece is a second hoop (32) and is used for fixing one end, far away from the first hoop (31), of the tetrafluoro bellows (5) on the outer peripheral surface of the inner sleeve (1).

4. A CPVC, PVC pipe compensator that stretches out and draws back according to claim 3, wherein: and a limiting groove (101) for clamping the sealing ring (102) is formed in the outer peripheral surface of the annular bulge (10).

5. A CPVC, PVC pipe expansion compensator of claim 4, characterized in that: the outer sleeve (2) is also provided with a limiting piece (4) for limiting the inner sleeve (1) to be separated from the outer sleeve (2).

6. A CPVC, PVC pipe expansion compensator of claim 5, characterized in that: the locating part (4) includes spacing ring (41), spacing ring (41) internal diameter is less than the external diameter of annular arch (10), the outer peripheral face and outer tube (2) inner wall joint of spacing ring (41) set up, the inner peripheral surface of spacing ring (41) is provided with a plurality of mounting grooves (42), the internal rotation of mounting groove (42) is connected with ball (43), the outer peripheral face of ball (43) and the outer peripheral face butt of interior sleeve pipe (1).

7. A CPVC, PVC pipe expansion compensator of claim 4, characterized in that: the sealing ring (102) is a square sealing ring (102).

8. A CPVC, PVC pipe expansion compensator of claim 7, characterized in that: the sealing rings (102) are arranged in a plurality, and the sealing rings (102) are uniformly arranged on the peripheral surface of the annular bulge (10).

9. A CPVC, PVC pipe expansion compensator of claim 6, characterized in that: the edge of one end, away from the connecting flange (11) of the inner sleeve (1), of the annular bulge (10) is chamfered.