CN218671107U

CN218671107U - High temperature resistant pipeline expansion joint

Info

Publication number: CN218671107U
Application number: CN202123129248.2U
Authority: CN
Inventors: 朱根龙
Original assignee: Jiangsu Yaxing Corrugated Pipe Co ltd
Current assignee: Jiangsu Yaxing Corrugated Pipe Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-03-21
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a high temperature resistance pipeline expansion joint, including the wave pipe, the equal fixedly connected with connecting pipe in wave pipe left and right sides position, two the wave pipe one side is kept away from to the connecting pipe external diameter all runs through and fixedly connected with ring flange, two the ring flange external diameter four otic placodes of the equal fixedly connected with evenly distributed in position all around, the inboard position of wave pipe internal surface is provided with the waterproof layer, the waterproof layer is the water-soluble nanometer material of not being stained with, waterproof layer inboard position fixedly connected with intensity layer, intensity layer inboard position fixedly connected with resistance layer. The utility model discloses in, this device is stainless steel's pipeline expansion joint, itself just has high temperature resistant and corrosion-resistant good quality, and the ripple on the wave tube is arranged accurately even, can effectual absorption vibrations energy, plays the effect of shock attenuation amortization, and threaded connection has the pull rod on the otic placode, can play the effect that explosion-proof antitorque was drawn, has greatly improved the safety in utilization of expansion joint.

Description

High temperature resistant pipeline expansion joint

Technical Field

The utility model relates to an expansion joint technical field especially relates to a high temperature resistant pipeline expansion joint.

Background

The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on a fixed tube-plate heat exchanger shell has large axial flexibility and is easy to deform, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell, avoiding strength damage, instability damage and tube pull-off damage, and having more types of expansion joints, commonly used structures such as wave shapes, ring plate welding, shell clamping and the like, wherein the wave-shaped expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

Chinese patent document 201720165204.X discloses a high temperature resistant pipeline expansion joint, which is characterized by comprising two sets of compensator components, a middle connecting pipe arranged between the compensator components and a casting material arranged on the inner side of the middle connecting pipe; the compensator component comprises channel steel flanges, corrugated pipes welded among the channel steel flanges, a transition plate, filling cotton, a filling blanket and a ceramic fiber block; the channel steel flange is welded on the outer side of the pipeline, the transition plates are welded with the middle connecting pipe, and expansion gaps are arranged between the adjacent transition plates; the ceramic fiber block is fixed on the inner side of the transition plate, the channel steel flange, the corrugated pipe and the transition plate form a filling cavity, and filling cotton and a filling blanket are arranged in the filling cavity. The device that this patent proposed is in practical application process, and the ability of bearing the high temperature is more weak, damages easily in high temperature environment, and the device that this patent proposed simultaneously, the practicality is relatively poor, and the market competition of device is weak.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a high-temperature resistant pipeline expansion joint.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high temperature resistant pipeline expansion joint, includes the wave pipe, the equal fixedly connected with connecting pipe in wave pipe left and right sides position, two the wave pipe one side is kept away from to the connecting pipe external diameter all runs through and fixedly connected with ring flange, two ring flange external diameter four otic placodes of the equal fixedly connected with evenly distributed in position all around, eight otic placode left and right sides central point puts and all runs through and is provided with the screw, controls adjacently equal threaded connection has the pull rod on the screw, four the equal threaded connection in pull rod left and right sides position has two nuts, the inboard position of wave pipe internal surface is provided with the waterproof layer, the nanometer material is not stained with to the waterproof layer for the water-soluble, waterproof layer inboard position fixedly connected with intensity layer, the intensity layer is the polyvinyl acetal material, intensity layer inboard position fixedly connected with resistance layer.

As a further description of the above technical solution:

and holes which are uniformly distributed penetrate through the periphery of the flange plate.

As a further description of the above technical solution:

two equal fixedly connected with packing ring and packing ring of flange plate keep away from wave pipe one side central point and put and be the silica gel material.

As a further description of the above technical solution:

and thread grooves are formed in the four pull rods.

As a further description of the above technical solution:

two adjacent screw caps are contacted with the lug plate.

As a further description of the above technical solution:

a cavity is arranged in the wave tube.

As a further description of the above technical solution:

the resistance layer is made of polyimide.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first through the waterproof layer that the nanometer material is not stained with to water-soluble, can effectually play water-proof effects, avoid the inside infiltration of expansion joint, influence life, through the strength layer of polyvinyl acetal material, can improve the toughness of expansion joint for the expansion joint is difficult because of external force is impaired, has promoted expansion joint bulk strength, and resistance layer through the polyimide material can improve the ability that the expansion joint tolerates high temperature, promotes the comprehensive properties of expansion joint, makes the expansion joint have more the practicality.

2. The utility model discloses in, this device is stainless steel's pipeline expansion joint, itself just has high temperature resistant and corrosion-resistant good quality, and the ripple on the wave tube is arranged accurately even, can effectual absorption vibrations energy, plays the effect of shock attenuation amortization, and threaded connection has the pull rod on the otic placode, can play the effect that explosion-proof antitorque was drawn, has greatly improved the safety in utilization of expansion joint.

Drawings

Fig. 1 is a perspective view of a high temperature resistant pipe expansion joint provided by the present invention;

fig. 2 is a structural view of a flange plate of a high temperature resistant pipe expansion joint provided by the utility model;

fig. 3 is a structural diagram of the inside of the wave tube of the high temperature resistant pipe expansion joint of the present invention.

Illustration of the drawings:

1. an ear plate; 2. a connecting pipe; 3. a flange plate; 4. a nut; 5. a wave tube; 6. a gasket; 7. a thread groove; 8. a pull rod; 9. a hole; 10. a screw hole; 11. a waterproof layer; 12. a strength layer; 13. a resistant layer; 14. a cavity.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a high temperature resistant pipeline expansion joint, including the wave tube 5, the equal fixedly connected with connecting pipe 2 in 5 left and right sides positions of wave tube, two 2 external diameters of connecting pipe keep away from wave tube 5 one side and all run through and fixedly connected with ring flange 3, four otic placodes 1 of the equal fixedly connected with evenly distributed in 3 external diameters of two ring flanges all around positions, eight otic placodes 1 left and right sides central point all run through and are provided with screw 10, equal threaded connection has pull rod 8 on the adjacent screw 10 of controlling, the equal threaded connection in 8 left and right sides positions of four pull rods has two

nuts

4, 5 internal surface positions of wave tube are provided with waterproof layer 11, waterproof layer 11 is the nanometer material of being not stained with for water-soluble, 11 internal side position fixedly connected with intensity layer 12 of waterproof layer, intensity layer 12 is polyvinyl acetal material, 12 internal side position fixedly connected with resistance layer 13 of intensity layer, this device is stainless steel's pipeline expansion joint, itself just has high temperature resistant and corrosion-resistant good quality, the ripple on the wave tube 5 is arranged accurately, can effectual absorption vibrations energy, play the effect of shock attenuation amortization, threaded connection has greatly improved the effect of drawing on ear plate 1.

All run through and be provided with evenly distributed's hole 9 on two ring flanges 3 all around the position, two ring flanges 3 keep away from 5 one side central point of wave tube and put equal fixedly connected with packing ring 6 and be the silica gel material, all be provided with thread groove 7 on four pull rods 8, contact with otic placode 1 between two adjacent nuts 4, the inside cavity 14 that is provided with of wave tube 5, resistance layer 13 is the polyimide material, waterproof layer 11 through the nanometer material is not stained with to the water-soluble, can effectually play the water-proof effects, avoid the inside infiltration of expansion joint, influence life, through the strength layer 12 of polyvinyl acetal material, can improve the toughness of expansion joint, make the expansion joint be difficult for damaging because of external force, expansion joint bulk strength has been promoted, resistance layer 13 through the polyimide material, can improve the ability that the expansion joint tolerates high temperature, promote the comprehensive properties of expansion joint, make the expansion joint have more the practicality.

The working principle is as follows: at first this device is stainless steel's pipeline expansion joint, itself just has high temperature resistant and corrosion-resistant good quality, ripple on the wave tube 5 is arranged accurately evenly, can effectual absorption shock energy, play the effect of shock attenuation amortization, threaded connection has pull rod 8 on otic placode 1, can play the effect that explosion-proof antitorque was drawn, the safety in utilization of expansion joint has greatly been improved, waterproof layer 11 through nanometer material is not stained with to the water-soluble, can effectually play water-proof effects, avoid the inside infiltration of expansion joint, influence life, through the intensity layer 12 of polyvinyl acetal material, can improve the toughness of expansion joint, make the expansion joint be difficult for damaging because of external force, expansion joint bulk strength has been promoted, resistance layer 13 through the polyimide material, can improve the ability of expansion joint high temperature resistance, the comprehensive properties of expansion joint is promoted, make the expansion joint have more the practicality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A high temperature resistant pipeline expansion joint, includes wave pipe (5), its characterized in that: the utility model discloses a waterproof structure, including travelling wave tube (5), the equal fixedly connected with connecting pipe (2) in position of wave tube (5) left and right sides position, two the wave tube (5) one side is kept away from to connecting pipe (2) external diameter all runs through and fixedly connected with ring flange (3), two ring flange (3) external diameter four otic placodes (1) of the equal fixedly connected with evenly distributed of position all around, eight both sides central point puts all runs through and is provided with screw (10), controls adjacently all on screw (10) equal threaded connection has pull rod (8), four pull rod (8) left and right sides position equal threaded connection has two nuts (4), wave tube (5) inner surface inboard position is provided with waterproof layer (11), waterproof layer (11) are the nanometer material not stained with for the water-soluble, waterproof layer (11) inboard position fixedly connected with intensity layer (12), intensity layer (12) are the polyvinyl acetal material, intensity layer (12) inboard position fixedly connected with resistance layer (13).

2. The high temperature resistant pipe expansion joint of claim 1, wherein: holes (9) which are uniformly distributed penetrate through the periphery of the two flange plates (3).

3. The high temperature resistant pipe expansion joint of claim 1, wherein: two equal fixedly connected with packing ring (6) and packing ring (6) are the silica gel material in flange dish (3) keep away from wave pipe (5) one side central point and put.

4. The high temperature resistant pipe expansion joint of claim 1, wherein: thread grooves (7) are formed in the four pull rods (8).

5. The high temperature resistant pipe expansion joint of claim 1, wherein: two adjacent screw caps (4) are contacted with the ear plate (1).

6. The high temperature resistant pipe expansion joint of claim 1, wherein: the wave tube (5) is internally provided with a cavity (14).

7. The high temperature resistant pipe expansion joint of claim 1, wherein: the resistant layer (13) is made of polyimide.