CN220470957U

CN220470957U - Fluorine-lined negative pressure-resistant compensator

Info

Publication number: CN220470957U
Application number: CN202322122080.5U
Authority: CN
Inventors: 王志超; 陈克松; 程嫚
Original assignee: Anhui Haifu Machinery Technology Co ltd
Current assignee: Anhui Haifu Machinery Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-09
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a fluorine-lined negative pressure resistant compensator which comprises a first flange and a second flange, wherein the first flange is positioned below the second flange, a stainless steel corrugated pipe is arranged between the first flange and the second flange, a first fixing block is welded on the outer wall of one side of the first flange, a screw rod is welded at the central position of the top of the first fixing block, a second fixing block is welded at the outer wall of one side of the second flange, which is close to the upper position of the first fixing block, and a first nut is connected at the outer wall of one side of the screw rod, which is close to the upper position of the second fixing block, through screw threads in a screwed manner. This lining fluorine is able to bear or endure negative pressure compensator, through the one end extrusion of first fastening nut on the lateral wall of first nut and second nut, can realize spacing fixed on first nut and the second nut position, avoid first nut and second nut screw thread not hard up, and then realize the regulation on the screw rod position, can adjust as required.

Description

Fluorine-lined negative pressure-resistant compensator

Technical Field

The utility model relates to the technical field of compensators, in particular to a fluorine-lined negative pressure resistant compensator.

Background

The compensator is also called expansion joint or expansion joint, and utilizes the effective expansion deformation of its working main body corrugated pipe to absorb the dimensional change of pipeline, conduit and container produced by heat expansion and cold contraction, etc. or compensate the axial, transverse and angular displacement of pipeline, conduit and container, etc. when the heating pipeline is raised, it is necessary to set up compensator on the pipeline to compensate the thermal elongation of pipeline, so as to reduce the stress of pipe wall and acting force on valve element or supporting structure.

In the existing compensator, the thermal extension of the compensation pipeline and the short time of cold contraction are not adjustable according to the needs, the capacity of bearing positive pressure at the concave position of the outer wall of the corrugated pipe is poor, and when the corrugated pipe is subjected to larger positive pressure from inside to outside, the compensator is often broken, so that the normal production is influenced by the outflow of medium in the compensator.

Therefore, a fluorine-lined negative pressure resistant compensator is proposed.

Disclosure of Invention

The utility model aims to provide a fluorine-lined negative pressure resistant compensator to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lining fluorine negative pressure resistant compensator, includes first flange and second flange, first flange is located the below of second flange, and is provided with the stainless steel bellows between first flange and the second flange, the welding has first fixed block on the outer wall of one side of first flange, the top central point department welding of first fixed block has the screw rod, the welding of the top position department that is close to first fixed block on the outer wall of one side of second flange has the second fixed block, the top position department that is close to the second fixed block on the outer wall of one side of screw rod is connected with first nut through the screw thread spin, and the below position department that is close to the second fixed block on the outer wall of one side of screw rod is connected with the second nut through the screw thread spin, the top of first flange is provided with the support frame, be connected with second fastening nut through the screw thread spin on the outer wall of one side of support frame, the one side of second fastening nut rotates and is connected with the stop collar, be provided with the guide bar on the outer wall of one side of stop collar, the inner groover has been seted up on the inner wall of one side of stop collar.

Compared with the prior art, the utility model has the beneficial effects that: this lining fluorine is able to bear or endure negative pressure compensator, through the one end extrusion of first fastening nut on the lateral wall of first nut and second nut, can realize spacing fixed on first nut and the second nut position, avoid first nut and second nut screw thread not hard up, and then realize the regulation on the screw rod position, can adjust as required, can spacing expansion of nonrust corrugated steel pipe through stop collar and indent, avoid nonrust corrugated steel pipe internal pressure to cause nonrust corrugated steel pipe expansion to break greatly.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a front view of the stop collar of the present utility model;

FIG. 3 is a front view of a stainless steel bellows of the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 1.

In the figure: 1. a first flange; 2. stainless steel bellows; 3. a second flange; 4. a first fixed block; 5. a screw; 6. a second fixed block; 7. a first nut; 8. a second nut; 9. a support block; 10. a first fastening nut; 11. a support frame; 12. a second fastening nut; 13. a limit sleeve; 14. a guide rod; 15. an inner groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the fluorine-lined negative pressure resistant compensator has the advantages that bolt connection holes are formed in the tops of the first flange 1 and the second flange 3, and connection and fixation of the first flange 1 and the second flange 3 with an external pipeline can be achieved.

The first fixing blocks 4 and the second fixing blocks 6 are all provided with three, and the three first fixing blocks 4 and the three second fixing blocks 6 are distributed on the outer side walls of the first flange 1 and the second flange 3 at equal intervals respectively, and three screw rods 5 can be arranged, so that limiting stability between the first flange 1 and the second flange 3 is guaranteed.

The supporting block 9 and the second fixing block 6 are mutually perpendicular, so that the first fastening nut 10 on the supporting block 9 and the second fixing block 6 are horizontal, and one end of the first fastening nut 10 is extruded on the outer side walls of the first screw cap 7 and the second screw cap 8.

One end of the first fastening nut 10 is in contact extrusion with the outer side walls of the first nut 7 and the second nut 8, so that the first nut 7 and the second nut 8 can be extruded and fixed, limiting on the positions of the first nut 7 and the second nut 8 is realized, and screw loosening of the first nut 7 and the second nut 8 is avoided.

One end of the guide rod 14 penetrates through the supporting frame 11, and limiting of the moving path of the limiting sleeve 13 can be achieved through the guide rod 14.

The cross section of the supporting frame 11 is of an H-shaped structure, so that more stable support can be provided for the second fastening nut 12.

The limit sleeve 13 and the inner groove 15 are matched with the outer side wall of the stainless steel corrugated pipe 2, and expansion of the stainless steel corrugated pipe 2 can be limited through the limit sleeve 13 and the inner groove 15, so that expansion and rupture of the stainless steel corrugated pipe 2 caused by high internal pressure of the stainless steel corrugated pipe 2 are avoided.

Working principle: when the stainless steel corrugated expansion pipe is used, the first flange 1 and the second flange 3 are respectively arranged on pipelines at two ends, the telescopic length of the stainless steel corrugated pipe 2 is adjusted so that the fluorine-lined negative pressure-resistant compensator can be fixedly arranged, when the second flange 3 moves to a required position, the first nut 7 and the second nut 8 are rotated, the first nut 7 and the second nut 8 extrude the second fixing block 6, the first fastening nut 10 is rotated, one end of the first fastening nut 10 is extruded on the outer side walls of the first nut 7 and the second nut 8 through threaded screwing connection between the first fastening nut 10 and the supporting block 9, limiting on the positions of the first nut 7 and the second nut 8 is achieved, the first nut 7 and the second nut 8 are prevented from loosening through threads, the second fastening nut 12 is rotated, and under the guiding limiting of the guide rod 14, one end of the second fastening nut 12 pushes the limiting sleeve 13 to move to the outer side of the stainless steel corrugated pipe 2, the stainless steel corrugated pipe 2 can be limited through the limiting sleeve 13 and the inner groove 15, and the stainless steel corrugated pipe 2 can be prevented from expanding, and the stainless steel corrugated pipe 2 is prevented from being expanded.

To sum up: this lining fluorine is able to bear or endure negative pressure compensator, through the one end extrusion of first fastening nut 10 on the lateral wall of first nut 7 and second nut 8, can realize that spacing on first nut 7 and the 8 positions of second nut is fixed, avoid first nut 7 and 8 screw threads of second nut to become flexible, and then realize the regulation on the screw rod 5 position, can adjust as required, can spacing expansion of nonrust corrugated steel pipe 2 through stop collar 13 and indent 15, avoid nonrust corrugated steel pipe 2 internal pressure to cause nonrust corrugated steel pipe 2 expansion to break greatly.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fluorine-lined negative pressure resistant compensator, includes first flange (1) and second flange (3), supporting shoe (9) and first fastening nut (10), its characterized in that: the utility model discloses a limit stop sleeve, including first flange (1), second flange (3), first flange (1) are located the below of second flange (3), and are provided with stainless steel bellows (2) between first flange (1) and second flange (3), the welding has first fixed block (4) on the one side outer wall of first flange (1), top central point department welding of first fixed block (4) has screw rod (5), the welding of the top position department that is close to first fixed block (4) on one side outer wall of second flange (3) has second fixed block (6), the top department that is close to second fixed block (6) on one side outer wall of screw rod (5) is connected with first nut (7) through the screw thread turn-in, and the below position department that is close to second fixed block (6) on one side outer wall of screw rod (5) is connected with second nut (8) through the screw thread turn-in, the top of first flange (1) is provided with support frame (11), be connected with second fastening nut (12) through the screw thread turn-in on one side outer wall of support frame (11), one side outer wall that is close to first fastening nut (12) has one side (13) and one side (13) is provided with limit stop sleeve on one side (13).

2. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: bolt connection holes are formed in the tops of the first flange (1) and the second flange (3).

3. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: the first fixing blocks (4) and the second fixing blocks (6) are all arranged in three, and the three first fixing blocks (4) and the second fixing blocks (6) are distributed on the outer side walls of the first flange (1) and the second flange (3) at equal intervals respectively.

4. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: the supporting blocks (9) and the second fixing blocks (6) are mutually perpendicular.

5. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: one end of the first fastening nut (10) is in contact extrusion with the outer side walls of the first nut (7) and the second nut (8).

6. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: one end of the guide rod (14) penetrates through the supporting frame (11).

7. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: the cross section of the supporting frame (11) is of an H-shaped structure.

8. The fluorine-lined negative pressure resistant compensator according to claim 1, wherein: the limit sleeve (13) and the inner groove (15) are matched and fit with the outer side wall of the stainless steel corrugated pipe (2).