CN217030354U

CN217030354U - Pipeline interfacing apparatus for water supply pipe network

Info

Publication number: CN217030354U
Application number: CN202220172609.7U
Authority: CN
Inventors: 刘斌; 张国超; 刘越
Original assignee: Jinan Shunran Environmental Protection Engineering Co ltd
Current assignee: Jinan Shunran Environmental Protection Engineering Co ltd
Priority date: 2022-01-22
Filing date: 2022-01-22
Publication date: 2022-07-22
Anticipated expiration: 2032-01-22

Abstract

The utility model discloses a pipe butt joint device for a water supply pipe network, which comprises: the device comprises a first pipeline, a second pipeline and an expansion joint; wherein: the side walls of the two ends of the first pipeline and the second pipeline are respectively fixed with a first connecting flange, and a connecting section is arranged between the first connecting flange and the pipeline port; a part of pipe wall of the expansion joint protrudes outwards to form a deformation part, and a flexible layer is attached to the inner wall of the expansion joint; second connecting flanges are fixed at two ports of the telescopic joint, a connecting section at one end of the first pipeline and a connecting section at one end of the second pipeline are respectively positioned in the two ports of the telescopic joint, and a gap is formed between the two connecting sections; the outer wall of the connecting section is in close contact with the flexible layer; the first connecting flange and the second connecting flange are fixedly connected. The pipeline butt joint device for the water supply pipeline network can effectively improve the compensation of the expansion amount of the connection part of the water supply pipeline and is convenient to install and use.

Description

Pipeline interfacing apparatus for water supply pipe network

Technical Field

The utility model relates to the technical field of water supply pipelines, in particular to a pipeline butt joint device for a water supply network.

Background

To the water supply pipe under the special environment such as hot water supply pipe, service environment difference in temperature round clock, can produce expend with heat and contract with cold and warp because the temperature variation, this kind of deformation leads to pipe joint department to take place to damage easily, and then leads to joint department to take place the problem of leaking, influences water supply pipe's safe operation. For this purpose, expansion joints are generally provided between the water supply lines to compensate for the expansion and contraction deformations caused by the axial, transverse and angular heating of the absorption lines. Besides, the expansion joint also has the function of absorbing the deformation of the pipeline caused by earthquake and ground subsidence. However, the current expansion joints are effective in compensating for expansion and contraction deformation, and are poor in compensating for elongation in particular.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the pipeline butt joint device for the water supply pipeline network, which is used as a pipeline connector, can effectively improve the compensation of the expansion amount of the joint of the water supply pipeline and is convenient to install and use. In order to achieve the above object, the technical solution of the present invention is as follows.

A pipe butting device for a water supply pipe network, comprising: first pipeline, second pipeline, expansion joint. Wherein: and the side walls of the two ends of the first pipeline and the second pipeline are respectively fixed with a first connecting flange, and connecting sections are respectively arranged between the first connecting flange and the port of the first pipeline and between the first connecting flange and the port of the second pipeline. A part of pipe wall of the expansion joint protrudes outwards to form a deformation part, and a flexible layer is attached to the inner wall of the expansion joint. Second connecting flanges are fixed at two ports of the telescopic joint, a connecting section at one end of the first pipeline and a connecting section at one end of the second pipeline are respectively positioned in the two ports of the telescopic joint, and a gap is formed between the two connecting sections; the outer wall of the connecting section is in close contact with the flexible layer. The first connecting flange is fixedly connected with the second connecting flange.

Further, still be provided with the secondary sealing washer between first flange and the second flange to further increase leakproofness, increase the compensation ability of expansion joint to the flexible volume of pipeline simultaneously.

Further, the secondary seal ring comprises a seal plate and a seal barrel. Wherein: the sealing plate is provided with a connecting hole corresponding to the connecting flange, and one end port of the sealing cylinder is vertically connected to the through hole in the center of the plate surface of the sealing plate.

Furthermore, the sealing plate is located between the first connecting flange and the second connecting flange, the sealing cylinder is sleeved on the outer walls of the first pipeline and the second pipeline, and the other end of the sealing cylinder is located in a port of the expansion joint and is in butt joint with the end face of the flexible layer.

Further, the flexible layer and the secondary sealing ring are made of any one of nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber, chlorohydrin rubber and the like.

Further, a part of the pipe wall of the expansion joint protrudes outwards to form an arc-shaped deformation part, so that the axial expansion deformation amount required by the joint of the first pipeline and the second pipeline is better provided.

Further, the material of the expansion joint comprises any one of plastic, stainless steel and the like so as to provide good expansion and contraction of the deformation compensation pipeline joint. Optionally, the thickness of the pipe wall of the expansion joint is selected to be 3-8 mm.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the pipe butting device for the water supply pipe network is provided with the expansion joint with the deformation part formed by the outward protrusion of the pipe wall, namely, the deformation amount is reserved on the expansion joint in advance, and the expansion joint can be subjected to more free expansion deformation in the axial direction, so that the deformation amount caused by the mutual approaching of the first pipe and the second pipe in the axial direction can be absorbed, and the deformation amount required to be compensated for the mutual separating of the first pipe and the second pipe in the axial direction can be provided.

(2) According to the telescopic joint, the flexible layer is arranged on the inner wall of the telescopic joint, so that the telescopic joint is connected with the first pipeline and the second pipeline in an interference fit manner, and the sealing property between the telescopic joint and the pipeline is ensured. Further, the secondary sealing ring with a special structure is adopted to carry out secondary sealing on the joint of the first connecting flange and the expansion joint, and the sealing performance is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic view of the internal structure of the pipe docking device for a water supply pipe network in the embodiment.

Fig. 2 is a schematic structural diagram of the first pipeline and the second pipeline in the embodiment.

Fig. 3 is a schematic structural diagram of the secondary seal ring in the embodiment.

Fig. 4 is a schematic structural view of the expansion joint in the embodiment.

The labels in the figures represent: 1-a first pipeline, 2-a second pipeline, 3-an expansion joint, 4-a first connecting flange, 5-a connecting section, 6-a deformation part, 7-a flexible layer, 8-a second connecting flange, 9-a secondary sealing ring, 9.1-a sealing plate, 9.2-a sealing cylinder and 9.3-a through hole.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings, and not for structural limitations, but merely for convenience in describing the utility model, and do not indicate or imply that the referenced devices or elements need to have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model. The technical scheme of the utility model is further explained by combining the drawings and the embodiment of the specification.

Referring to fig. 1 to 3, there is illustrated a pipe docking device for a water supply pipe network, comprising: first pipeline 1, second pipeline 2, expansion joint 3. Wherein:

referring to fig. 2, the side walls of both ends of the first pipeline 1 and the second pipeline 2 are fixedly connected with a first connecting flange 4, the first connecting flange 4 is provided with a connecting hole, and a certain distance is provided between the first connecting flange 4 and the port of the pipeline, so that the part of the pipeline forms a connecting section 5 to be connected with the expansion joint 3.

Referring to fig. 3, a part of the pipe wall of the expansion joint 3 protrudes outward to form an arc-shaped deformation portion 6, and a flexible layer 7 made of rubber, such as nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber, epichlorohydrin rubber, etc., is attached to the inner wall of the expansion joint 3. Both ends mouth department of expansion joint 3 all is fixed with second flange 8, the linkage segment 5 of 1 right-hand member of first pipeline, the linkage segment 5 of 2 left ends of second pipeline insert respectively in the left end mouth and the right port of expansion joint 3, and have the clearance between the linkage segment 5 of 1 right-hand member of first pipeline, the linkage segment 5 of 2 left ends of second pipeline, the size in clearance can be adjusted as required, like 2mm, 3mm, 5mm etc. In addition, the material of the expansion joint 3 can be selected according to the requirement, for example, when the first pipeline 1 and the second pipeline 2 are PVC plastic pipes, the expansion joint 3 can be made of PVC; when the first pipeline 1 and the second pipeline 2 are made of steel or composite materials, the expansion joint 3 may be made of stainless steel, and preferably, the thickness of the pipe wall may also be selected as needed, such as 3mm, 5mm, 8mm, and the like.

Further, the outer wall of first pipeline 1, 2 linkage segments of second pipeline 5 all with corresponding port in flexible layer 7 in the in close contact with, flexible layer 7 can make interference fit be connected between expansion joint 3 and first pipeline 1, the second pipeline 2, guaranteed the leakproofness between expansion joint 3 and the pipeline is controlled, simultaneously, flexible layer 7 can also keep apart the water supply in 3 inner walls of expansion joint and a pipeline 1, the second pipeline 2, is favorable to improving the life of expansion joint 3. The first connecting flange 4 and the second connecting flange 8 are butted and tightly connected together through bolts and nuts. By adopting the expansion joint 3 with the deformation part 6 formed by the outward protrusion on the pipe wall, the deformation amount is reserved on the expansion joint 3, and the expansion joint can be more freely expanded and deformed in the axial direction, so that the deformation amount caused by the mutual approaching of the first pipeline 1 and the second pipeline 2 in the axial direction can be absorbed, and the deformation amount required to be compensated for can be provided for the mutual departing of the first pipeline 1 and the second pipeline 2 in the axial direction.

With continued reference to fig. 1, a secondary sealing ring 9 made of rubber (such as nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber, epichlorohydrin rubber, etc.) is further disposed between the first connecting flange 4 and the second connecting flange 8. In particular, and with reference to fig. 4, the secondary seal 9 comprises a seal plate 9.1 and a seal cartridge 9.2. Wherein: the edge of the plate surface of the sealing plate 9.1 is provided with connecting holes corresponding to the first connecting flange 4 and the second connecting flange 8, and one end port of the sealing cylinder 9.2 is vertically connected to a through hole 9.3 in the center of the plate surface of the sealing plate 9.1. The closing plate 9.1 presss from both sides tightly between first flange 4 and the second flange 8, sealed 9.2 covers on the outer wall of first pipeline 1, second pipeline 2, and sealed 9.2's the other end is located in expansion joint 3's port and with the terminal surface butt joint of flexible layer 7, consequently, there is certain distance in the port department of the terminal surface distance expansion joint 3 of flexible layer 7 to satisfy the needs that sealed 9.2 inserted behind expansion joint 3's the port and flexible layer 7's terminal surface butt joint. The secondary sealing is carried out on the joint of the first connecting flange 4 and the expansion joint 3 by adopting the secondary sealing ring 9 with a special structure, so that the sealing performance is further improved, and the compensation capacity of the expansion joint 3 on the expansion amount of the pipeline is increased.

Finally, it should be understood that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A pipeline interfacing apparatus for a water supply pipe network, comprising: the device comprises a first pipeline, a second pipeline and an expansion joint; wherein: the side walls of the two ends of the first pipeline and the second pipeline are respectively fixed with a first connecting flange, and connecting sections are arranged between the first connecting flange and the first pipeline port and between the first connecting flange and the second pipeline port; a part of pipe wall of the expansion joint protrudes outwards to form a deformation part, and a flexible layer is attached to the inner wall of the expansion joint; second connecting flanges are fixed at two ports of the telescopic joint, a connecting section at one end of the first pipeline and a connecting section at one end of the second pipeline are respectively positioned in the two ports of the telescopic joint, and a gap is formed between the two connecting sections; the outer wall of the connecting section is in close contact with the flexible layer; the first connecting flange and the second connecting flange are fixedly connected.

2. The pipe docking device for a water supply pipe network of claim 1, wherein a secondary sealing ring is further disposed between the first connecting flange and the second connecting flange.

3. The pipe docking device for a water supply pipe network of claim 2, wherein said secondary sealing ring comprises a sealing plate and a sealing cylinder; wherein: the sealing plate is provided with a connecting hole corresponding to the connecting flange, and one end port of the sealing cylinder is vertically connected to a through hole in the center of the plate surface of the sealing plate.

4. The water supply pipe network pipe butting device according to claim 3, wherein the sealing plate is located between the first connecting flange and the second connecting flange, the sealing cylinder is sleeved on the outer walls of the first pipeline and the second pipeline, and the other end of the sealing cylinder is located in the port of the expansion joint and butted against the end face of the flexible layer.

5. The pipe butting device for water supply pipes according to claim 2, wherein the flexible layer and the secondary sealing ring are made of nitrile rubber, fluororubber, silicone rubber, ethylene propylene rubber or chlorohydrin rubber.

6. The pipe joining apparatus for a water supply pipe network according to any one of claims 1 to 5, wherein a part of the pipe wall of the expansion joint is outwardly projected to form an arc-shaped deformation portion.

7. The pipe docking device for a water supply pipe network according to any one of claims 1 to 5, wherein the material of the expansion joint comprises any one of plastic and stainless steel.

8. The pipe butting device for the water supply pipe network according to claim 6, wherein the expansion joint has a pipe wall thickness of 3-8 mm.