CN211175864U

CN211175864U - Special compensator for PVC-C pipeline

Info

Publication number: CN211175864U
Application number: CN201921773332.8U
Authority: CN
Inventors: 瞿桂然; 孙威; 李凤亮
Original assignee: Tianjin Hongtai Pipe Industry Co ltd
Current assignee: Tianjin Hongtai Pipe Industry Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-08-04
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a special compensator of PVC-C pipeline, including tetrafluoro rubber pipeline, the both ends of tetrafluoro rubber pipeline are all overlapped and are equipped with the flange, and flange and tetrafluoro rubber pipeline fixed connection, tetrafluoro rubber pipeline's middle part lateral wall cover is equipped with metal casing, and the metal casing welding is between two flanges, the intermediate layer has been seted up between tetrafluoro rubber pipeline and the metal casing, and is filled with the cotton every of inorganic fiber in the intermediate layer four fixed plates are all welded to the lateral wall of flange, and four fixed plates surround the flange setting, every all insert the dead lever that is equipped with horizontal setting on the fixed plate, and dead lever and fixed plate fixed connection. The utility model relates to a pipeline installation technical field through the cooperation of spring leaf and dead lever, makes the compensator can provide the angular compensation volume, through the cooperation of a plurality of spring leaves, prevents that the compensator from excessively warping simultaneously, leads to the compensator to damage.

Description

Special compensator for PVC-C pipeline

Technical Field

The utility model relates to a piping infrastructure technical field especially relates to a special compensator of PVC-C pipeline.

Background

The compensator is also called expansion joint or expansion joint, and is composed of bellows and end pipe, support, flange, conduit and other accessories, which form the working main body, and belongs to a compensation element.

As a novel pipeline, a PVC-C pipeline has excellent corrosion resistance, a rubber compensator is usually used, in the prior art, the rubber compensator is deformed by the stress of the pipeline so as to absorb the stress of the pipeline, once the deformation of the pipeline exceeds the compensation amount of the rubber compensator, the rubber is excessively changed to damage the rubber compensator, and a medium in the pipeline is leaked, so that a special compensator for the PVC-C pipeline is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a special compensator for a PVC-C pipeline.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a special compensator of PVC-C pipeline, includes tetrafluoro rubber pipeline, the both ends of tetrafluoro rubber pipeline all overlap and are equipped with the flange, and flange and tetrafluoro rubber pipeline fixed connection, the middle part lateral wall cover of tetrafluoro rubber pipeline is equipped with metal casing, and the metal casing welding is between two flanges, the intermediate layer has been seted up between tetrafluoro rubber pipeline and the metal casing, and has inorganic fiber cotton, every in the intermediate layer the lateral wall of flange all welds four fixed plates, and four fixed plates surround the flange setting, every all insert the dead lever that is equipped with horizontal setting on the fixed plate, and dead lever and fixed plate fixed connection, relative two through spring leaf fixed connection between the dead lever.

Preferably, four groups the lateral wall of dead lever all overlaps and is equipped with the transportation protective housing, and the spring leaf is located and transports the protective housing and set up, transportation protective housing and dead lever sliding connection.

Preferably, a matched tetrafluoro plate flange gasket is bonded to the side wall of each of the two flanges, which is far away from the metal shell.

Preferably, every the both ends lateral wall of transportation protective housing all seted up the screw hole, and screw hole female connection has the screw rod, the lateral wall of dead lever is seted up the screw hole that matches with the screw rod, and screw rod and dead lever threaded connection.

Preferably, the flange is a plate type flat welding flange, and the material of the flange is Hastelloy.

Preferably, the metal shell comprises two semicircular plates, and the two semicircular plates are welded, the metal shell comprises a first semicircular plate, and the first semicircular plate is welded with a second semicircular plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the compensator can provide angular compensation amount through matching of the external fixed rod and the spring pieces, meanwhile, the plurality of spring pieces can ensure that the compensator cannot generate excessive deformation, damage of the compensator is avoided, the fixed rod can be used as a transport bolt through a transport protection shell, and meanwhile, the spring pieces are prevented from being subjected to permanent plastic deformation when the stress exceeds self deformation in the transport process;

2. the compensator is made to be consistent with a medium applicable to the PVC-C pipeline by lining the PTFE rubber, the compensator is made to be more adaptive to the PVC-C pipeline, the inorganic fiber cotton filled in the interlayer can reduce noise and compensate thermal expansion and simultaneously has a heat preservation effect, and the mechanical strength of the compensator is improved by matching with the good heat preservation performance of the PVC-C pipeline, and the compensator is made to be more durable by the metal shell wrapped outside.

Drawings

Fig. 1 is a schematic perspective view of a compensator specially used for PVC-C pipeline according to the present invention;

FIG. 2 is a schematic cross-sectional view of a compensator specially used for PVC-C pipeline according to the present invention;

fig. 3 is a schematic structural diagram of a metal shell of the compensator specially used for PVC-C pipelines according to the present invention.

In the figure: 1 tetrafluoro rubber pipeline, 2 flanges, 3 metal shells, 301 a first semicircular plate, 302 a second semicircular plate, 4 inorganic fiber cotton, 5 fixing plates, 6 fixing rods, 7 spring pieces, 8 transportation protection shells, 9 tetrafluoro plate flange gaskets and 10 screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a compensator special for PVC-C pipeline comprises a tetrafluoro rubber pipeline 1, wherein flanges 2 are respectively sleeved at two ends of the tetrafluoro rubber pipeline 1, the flanges 2 are plate type flat welding flanges, the flanges 2 are made of hastelloy which has better corrosion resistance, the flanges 2 are ensured not to be corroded and damaged due to the seepage of media in the PVC-C pipeline and the like, the service life of the flanges 2 is prolonged, the characteristics of corrosion resistance of the PVC-C pipeline are better adapted, the flanges 2 are fixedly connected with the tetrafluoro rubber pipeline 1, a metal shell 3 is sleeved on the side wall of the middle part of the tetrafluoro rubber pipeline 1, the metal shell 3 comprises a first semicircular plate 301, the first semicircular plate 301 is connected with a second semicircular plate 302 in a welding manner, the metal shell formed by welding the first semicircular plate 301 and the second semicircular plate 302 is convenient to install and can protect the tetrafluoro rubber pipeline 1, because the direct filler of the tetrafluoro rubber pipeline 1 and the metal shell 3 is the inorganic fiber cotton 4, and the inorganic fiber cotton 4 has the functions of heat insulation and flame retardance, the tetrafluoro rubber pipeline 1 cannot be damaged in the welding process;

the metal shell 3 is welded between the two flanges 2, a polytetrafluoroethylene plate flange gasket 9 matched with the two flanges 2 is bonded on the side wall of one side of the two flanges 2 away from the metal shell 3, the polytetrafluoroethylene plate flange gasket 9 can improve the sealing performance of the joint of the PVC-C pipeline and the compensator and prevent the medium in the PVC-C pipeline from leaking or seeping out, an interlayer is arranged between the polytetrafluoroethylene rubber pipeline 1 and the metal shell 3 and is filled with inorganic fiber cotton 4, four fixing plates 5 are welded on the outer sides of the two flanges 2, four groups of fixing rods 6 are inserted between the two flanges 2 and are fixedly connected with the fixing plates 5, the four groups of fixing rods 6 are fixedly connected with each other through spring pieces 7, the side walls of the four groups of fixing rods 6 are sleeved with transportation protection shells 8, the spring pieces 7 are positioned in the transportation protection shells 8, and the transportation protection shells 8 are connected with the fixing rods, transportation protective housing 8 can protect spring leaf 7, make it can not collide with and lead to warping or damaging in the transportation, because transportation protective housing 8 and 6 sliding connection of dead lever, so the compensator need not to dismantle transportation protective housing 8 in the use, every both ends lateral wall of transportation protective housing 8 all seted up threaded hole, and threaded hole female connection has screw rod 10, the screw hole that matches with screw rod 10 is seted up to the lateral wall of dead lever 6, and

screw rod

10 and 6 threaded connection of dead lever, through

screw rod

10 and 6 threaded connection of dead lever, it is fixed with transportation protective housing 8 to make the dead lever, prevent to lead to the compensator to warp and damage because the vehicle jolts in the transportation, screw rod 10 can make the restriction of unclamping dead lever 6 simultaneously unscrewed, make it keep sliding connection's state with protective housing 8.

The utility model discloses in, through the flange fixed connection who uses bolt and nut with the flange 2 of compensator and PVC-C pipeline, thereby with PVC-C pipeline and compensator UNICOM, the tetrafluoro board flange gasket 10 that bonds on the flange 2 can improve the leakproofness of PVC-C pipeline and compensator, guarantee that the medium in the pipeline can not ooze, because the inner wall of compensator is tetrafluoro rubber pipeline 1, the tetrafluoro rubber material has heat resistance and corrosion resisting ability equally, can adapt the medium in the PVC-C pipeline, because the intermediate layer intussuseption between tetrafluoro rubber pipeline 1 and metal casing 3 is filled with inorganic fiber cotton 4, inorganic fiber cotton 4 can the noise of absorption pipeline, have the heat preservation effect simultaneously, and inorganic fiber cotton 4 is comparatively soft, can step down for tetrafluoro rubber pipeline 1 when pipeline internal pressure is too big, thereby reach compensation absorption pipeline axial in the pipeline, The purpose of transverse thermal deformation, because the tetrafluoro rubber pipeline 1 is a corrugated pipe, the expansion amount of a PVC-C pipeline can be compensated, the installation and the disassembly of a valve pipeline are convenient, the metal shell 3 can protect the tetrafluoro rubber pipeline 1, and simultaneously the mechanical strength of the compensator is improved, so that the compensator is more durable, because the fixed rods 7 are fixedly connected through the spring pieces 8, the spring pieces 8 have certain elasticity, the expansion characteristic of the corrugated pipe is matched, the purpose of compensating and absorbing the angular displacement of the PVC-C pipeline is achieved, on the other hand, the tetrafluoro rubber pipeline 1 is relatively soft, the compensator can be prevented from being excessively deformed through the spring pieces 8, the damage of the compensator is caused, when the compensator is transported, the screw rod 12 is screwed down to be abutted against the fixed rods 7, so that the transportation protective shell 9 is fixed with the fixed rods 7, and the transportation process is, spring leaf 8 can not exceed self deformation because of the atress and take place permanent plastic deformation, guarantees simultaneously that the compensator is in initial condition in the installation, avoids the compensation volume of extravagant compensator, and loose screw rod 12 can normal use after the installation is accomplished, need not to dismantle spare parts such as transportation protective housing 8 and dead lever 6, when conveniently carrying out the pipeline maintenance clearance simultaneously, dismouting compensator.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a special compensator of PVC-C pipeline, includes tetrafluoro rubber pipeline (1), its characterized in that, the both ends of tetrafluoro rubber pipeline (1) all are equipped with flange (2), and flange (2) and tetrafluoro rubber pipeline (1) fixed connection, the middle part lateral wall cover of tetrafluoro rubber pipeline (1) is equipped with metal casing (3), and metal casing (3) welding between two flanges (2), set up the intermediate layer between tetrafluoro rubber pipeline (1) and metal casing (3), and it has inorganic fiber cotton (4) to fill in the intermediate layer, every four fixed plate (5) have all been welded to the lateral wall of flange (2), and four fixed plate (5) surround flange (2) and set up, every all insert on fixed plate (5) and be equipped with horizontal dead lever (6) that set up, and dead lever (6) and fixed plate (5) fixed connection, the two opposite fixing rods (6) are fixedly connected through a spring piece (7).

2. The compensator special for PVC-C pipelines as claimed in claim 1, wherein a transportation protective shell (8) is sleeved between two opposite fixing rods (6), the spring piece (7) is arranged in the transportation protective shell (8), and the transportation protective shell (8) is slidably connected with the fixing rods (6).

3. Compensator special for PVC-C pipeline according to claim 1, characterized in that the matched tetrafluoro plate flange gasket (9) is bonded on the side wall of two flanges (2) far from the metal shell (3).

4. The compensator special for PVC-C pipelines as claimed in claim 2, wherein the side walls of both ends of each transportation protection shell (8) are provided with threaded holes, the threaded holes are internally threaded with screws (10), the side walls of the fixing rods (6) are provided with threaded holes matched with the screws (10), and the screws (10) are in threaded connection with the fixing rods (6).

5. The compensator special for the PVC-C pipeline as claimed in claim 1, wherein the flange (2) is a plate type flat welding flange, and the material of the flange (2) is Hastelloy.

6. PVC-C pipe specific compensator according to claim 1, characterized by the fact that the metal casing (3) comprises a first semicircular plate (301) and the first semicircular plate (301) is welded with a second semicircular plate (302).