CN211371560U

CN211371560U - Prevent chemical pipeline of leakage

Info

Publication number: CN211371560U
Application number: CN201922014772.1U
Authority: CN
Inventors: 任少海
Original assignee: Huludao Hongjing Technology Co ltd
Current assignee: Huludao Hongjing Technology Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-28
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to the technical field of pipeline sealing, in particular to a leakage-proof chemical pipeline, which comprises an outer pipeline pipe and a resin inner pipe tightly sleeved inside, wherein one end of the resin inner pipe extends to the outside to form a protruding section, the other end of the resin inner pipe is provided with an opening to form a flaring, and the protruding sections of the adjacent resin inner pipes are tightly fit in the flaring; the outer circumferences of two ends of the pipeline outer pipe form annular flanges, the flanges of adjacent pipeline outer pipes are tightly connected through fastening bolts, a plurality of positioning pins are welded on the circumferential direction of the opening end face of one end of the pipeline outer pipe, and a matching groove is correspondingly formed on the circumferential direction of the opening end face of the other end of the pipeline outer pipe; through setting up the chemical pipeline and including pipeline outer tube and the resin inner tube of registrate in it, and the junction of the two staggers each other, consequently has effectively improved the leakproofness of pipe connection department, also is difficult for appearing the condition of leaking after the live time has long, and the while also at utmost has reduced the harmful effects that expend with heat and contract with cold and bring the pipe connection department.

Description

Prevent chemical pipeline of leakage

Technical Field

The utility model relates to a pipeline sealing technical field specifically is a prevent chemical pipeline of leakage.

Background

With the continuous development of the industry in China, pipelines are also a problem which is concerned by people in the application of the chemical industry. The steel-plastic chemical pipe is an important support column in the chemical transportation industry. The main material of the steel-plastic chemical pipe is ultra-high molecular weight polyethylene, and the ultra-high molecular weight polyethylene is thermoplastic engineering plastic with the average molecular weight of more than 200 ten thousand, which is polymerized by ethylene and butadiene monomers under the action of a catalyst. The composite pipe has excellent comprehensive performance, and the wear resistance, low temperature resistance, corrosion resistance, self lubrication and impact resistance of the composite pipe are the highest values in all plastics, so that the composite pipe is an ideal pipe.

The main purpose of the chemical pipeline is to transport some chemicals, but now after a lot of chemical pipelines are used for a long time, the leakage and other conditions are easy to occur, so that the gas and liquid leakage phenomenon can occur in the process of chemical raw material transmission, some chemicals possibly contain high toxicity, and the safety of people is greatly threatened, and the chemicals flow out, so that the serious resource waste is caused. According to researches, the main reason of pipeline leakage is that the joints of adjacent pipelines are usually fixed by fastening bolts, but if the adjacent pipelines are not aligned, or the joints of the pipelines generate invisible gaps due to objective reasons such as thermal expansion and cold contraction, and further leakage is caused. Therefore, a chemical pipeline with good sealing performance at the pipeline joint and capable of preventing leakage is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a prevent chemical pipeline of leakage, the leakproofness that possesses the pipe connection department is high, prevents that the leakage ability is good, safe and reliable, and low cost's advantage has solved traditional chemical pipeline connection department leakproofness poor, takes place easily to leak, and then the problem of probably polluted environment.

The utility model discloses a leakage-proof chemical pipeline, which comprises an outer pipeline pipe and a resin inner pipe tightly sleeved inside, wherein one end of the resin inner pipe extends to the outside to form a protruding section, the other end of the resin inner pipe is provided with an opening to form a flaring, and the protruding sections of the adjacent resin inner pipes are tightly fit in the flaring; the outer circumferences of two ends of the pipeline outer pipe form annular flanges, and the flanges of the adjacent pipeline outer pipes are tightly connected through fastening bolts. This scheme is through setting up the chemical pipeline and including pipeline outer tube and the resin inner tube of registrate in it, and the junction of the two staggers each other, has consequently effectively improved the leakproofness of pipe connection department, the condition of revealing also is difficult for appearing after the live time has long, and the while is the at utmost also reduced expend with heat and contract with cold and bring the harmful effects to pipe connection department.

The utility model discloses a prevent chemical pipeline of leakage, wherein the welding of the opening terminal surface circumference of the outer pipe of pipeline one end has a plurality of locating pins, and the opening terminal surface circumference correspondence of the outer pipe of pipeline other end has been seted up and has been agreed with the recess. This scheme is through setting up the locating pin of pipeline outer tube opening terminal surface, has avoided the risk that the junction of pipeline outer tube took place unexpected dislocation, has further promoted the leakproofness of pipeline junction, has reduced the risk of leaking.

The utility model discloses a prevent chemical pipeline of leakage, wherein the equal circumference welding in pipeline outer tube outer wall both ends has a plurality of L shapes to link the arm, and the L shape of one end links the terminal welding of arm to have a threaded rod, and the L shape of the other end links the terminal welding of arm to have a pole cover, and the pole cover degree of depth is greater than threaded rod length, and quick detach nut is installed to the pole cover end, and quick detach nut and threaded rod agree with each other. This scheme is through setting up a plurality of L shape link arms of circumference welding respectively at pipeline outer tube outer wall both ends, inserts the threaded rod of adjacent pipeline and screws up with quick detach nut in the pole cover and assist fixedly, has effectively avoided the stress concentration problem of pipe connection department to the leakproofness of pipe connection department has further been promoted.

The utility model discloses a prevent chemical pipeline of leakage, wherein pipeline outer tube inner wall matrix forms a plurality of mounds, and the resin inner tube closely agrees with in the pipeline outer tube through mound. This scheme makes agreeing with of resin inner tube and pipeline outer tube more firmly inseparable through setting up the mound.

The utility model discloses a prevent chemical pipeline of leakage, wherein the outside closely registrates of junction of adjacent pipeline outer tube has outer sleeve pipe, and outer sleeve pipe intercommunication has the overflow pipe, and the overflow pipe intercommunication has outside recovery unit connecting pipe. This scheme has avoided the risk of the gaseous and liquid polluted environment of leaking on the one hand through setting up outer sleeve pipe and communicating to outside recovery unit's overflow pipe, and on the other hand has also retrieved the thing that leaks, has reduced cost loss.

The utility model discloses a prevent chemical pipeline of leakage, wherein be connected with the cushion chamber between overflow pipe and the outside recovery unit connecting pipe. This scheme makes things convenient for personnel to detect or maintain through setting up the cushion chamber.

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

1. this scheme is through setting up the chemical pipeline and including pipeline outer tube and the resin inner tube of registrate in it, and the junction of the two staggers each other, has consequently effectively improved the leakproofness of pipe connection department, the condition of also being difficult for appearing leaking after the live time has long, and the while is the at utmost also reduced expend with heat and contract with cold and bring the harmful effects to pipe connection department.

2. According to the scheme, the positioning pin on the opening end face of the outer pipe of the pipeline is arranged, so that the risk of accidental dislocation of the joint of the outer pipe of the pipeline is avoided, the sealing performance of the joint of the pipeline is further improved, and the risk of leakage is reduced; through setting up a plurality of L shape link arms of circumference welding respectively at pipeline outer tube outer wall both ends, insert the threaded rod of adjacent pipeline in the pole cover and screw up with quick detach nut and assist fixedly, effectively avoided the stress concentration problem of pipe connection department to the leakproofness of pipe connection department has further been promoted.

3. This scheme has avoided the risk of the gaseous and liquid polluted environment of leaking on the one hand through setting up outer sleeve pipe and communicating to outside recovery unit's overflow pipe, and on the other hand has also retrieved the thing that leaks, has reduced cost loss.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the cross-sectional structure of the left side of the chemical pipeline of the present invention;

fig. 2 is the structural schematic diagram of the front view of the chemical pipeline of the present invention.

In the figure: 1. an outer pipe of the pipeline; 11. a flange; 12. positioning pins; 13. humping; 2. a resin inner tube; 21. A protruding section; 22. flaring; 3. an L-shaped link arm; 31. a threaded rod; 32. a rod sleeve; 33. a quick-release nut; 4. an outer casing; 5. an overflow pipe; 51. a buffer chamber; 6. an external recovery device connecting pipe.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, the anti-leakage chemical pipeline of the present invention includes an outer pipe 1 and an inner pipe 2 tightly fitted inside, wherein one end of the inner pipe 2 extends to the outside to form a protruding section 21, the other end of the inner pipe 2 is opened to form a flared opening 22, and the protruding section 21 of the adjacent inner pipe 2 is tightly fitted inside the flared opening 22; the outer circumferences of both ends of the outer pipe 1 form annular flanges 11, and the flanges 11 of adjacent outer pipes 1 are tightly connected by fastening bolts. This scheme is through setting up chemical pipeline and including pipeline outer tube 1 and the resin inner tube 2 of registrate in it, and the junction of the two staggers each other, has consequently effectively improved the leakproofness of pipe connection department, the condition of also being difficult for appearing leaking after the live time has prolonged, and the while is the at utmost has reduced the harmful effects that expend with heat and contract with cold and bring the pipe connection department.

Further, a plurality of positioning pins 12 are welded on the circumferential direction of the opening end face of one end of the outer pipe 1, and a matching groove is correspondingly formed on the circumferential direction of the opening end face of the other end of the outer pipe 1. This scheme is through setting up locating pin 12 of 1 opening terminal surfaces of pipeline outer tube, has avoided the risk that the junction of pipeline outer tube 1 takes place unexpected dislocation, has further promoted the leakproofness of pipeline junction, has reduced the risk of leaking.

Further, the equal circumference welding in 1 outer wall both ends of pipeline outer tube has a plurality of L shape to link arm 3, and the L shape of one end links 3 end welding of arm and has threaded rod 31, and the L shape of the other end links 3 end welding of arm and has a pole cover 32, and the pole cover 32 degree of depth is greater than threaded rod 31 length, and quick detach nut 33 is installed to pole cover 32 end, and quick detach nut 33 agrees with each other with threaded rod 31. This scheme is through setting up 1 outer wall both ends of pipeline outer tube a plurality of L shape link arms 3 of circumference welding respectively, inserts the threaded rod 31 of adjacent pipeline in the pole cover 32 and screws up with quick detach nut 33 and assist fixedly, has effectively avoided the stress concentration problem of pipe connection department to the leakproofness of pipe connection department has further been promoted.

Further, a plurality of protuberances 13 are formed on the inner wall matrix of the outer pipe 1 of the pipeline, and the inner pipe 2 of the resin is tightly fitted into the outer pipe 1 of the pipeline through the protuberances 13. The scheme makes the conjunction of the resin inner pipe 2 and the pipeline outer pipe 1 more firm and compact by arranging the hump 13.

Further, the outer sleeve 4 is tightly sleeved outside the joint of the adjacent pipeline outer pipes 1, the outer sleeve 4 is communicated with an overflow pipe 5, and the overflow pipe 5 is communicated with an external recovery device connecting pipe 6. This scheme has avoided the risk of the gaseous and liquid polluted environment of leaking on the one hand through setting up outer sleeve pipe 4 and communicating to outside recovery unit's overflow pipe 5, and on the other hand has also retrieved the thing that leaks, has reduced cost loss.

Further, a buffer chamber 51 is connected between the overflow pipe 5 and the external recovery device connection pipe 6. This scheme makes things convenient for personnel to detect or maintain through setting up cushion chamber 51.

When using the utility model discloses the time:

referring to fig. 1 and 2, when adjacent chemical pipelines are communicated with each other, the protruding section 21 of the resin inner pipe 2 fits into the flaring 22 of the adjacent resin inner pipe 2, and the opening end faces of the adjacent pipeline outer pipes 1 are tightly attached and fixed by fastening bolts. Therefore, the joint of the inner resin inner pipe 2 and the joint of the outer pipe 1 are staggered, the sealing performance of the joints of the pipes is effectively improved, the leakage condition is not easy to occur after the pipe is used for a long time, and the adverse effect of thermal expansion and cold contraction on the joints of the pipes is reduced to the maximum extent.

Meanwhile, the positioning pins 12 and the corresponding fit grooves are respectively arranged on the opening end faces of the adjacent outer pipe 1 of the pipeline, so that the risk of accidental dislocation of the joints of the outer pipe 1 of the pipeline is avoided, the sealing performance of the joints of the pipeline is further improved, and the risk of leakage is reduced.

In addition, traditional chemical pipeline only relies on fastening bolt to fix, leads to flange 11 department to take place stress concentration problem easily, consequently in this scheme at 1 outer wall both ends of pipeline outer tube circumference welding a plurality of L shape link arms 3 respectively, insert in the pole cover 32 and screw up with quick detach nut 33 through the threaded rod 31 with adjacent pipeline and assist fixedly, has effectively avoided the stress concentration problem of pipe connection department to the leakproofness of pipe connection department has further been promoted.

Nevertheless, chemical pipeline advances the overlength use back, still inevitable can take place the phenomenon of gas and liquid leakage, consequently this scheme is at the outside close fit of junction of pipeline outer tube 1 and is gone up outer sleeve pipe 4, and outer sleeve pipe 4 intercommunication has overflow pipe 5 simultaneously, communicates to outside recovery unit through overflow pipe 5, has avoided the risk of the gas and the liquid polluted environment of leakage on the one hand, and on the other hand has also carried out the recovery to the thing that leaks, has reduced cost loss.

A buffer cavity 51 can be connected between the overflow pipe 5 and the external recovery device connecting pipe 6, so that the detection or maintenance by personnel is facilitated. An external real-time monitoring device may be connected between the buffer chambers 51 to implement the leakage alarm function, which is not described herein.

The utility model discloses the leakproofness that possesses the pipe connection department is high, and it can be good to prevent leaking, safe and reliable, and low cost's advantage has solved traditional chemical industry pipe connection department leakproofness poor, takes place easily to leak, and then the problem of probably polluted environment.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A chemical industry pipeline of preventing leaking which characterized in that: the pipe comprises a pipe outer pipe (1) and a resin inner pipe (2) tightly sleeved inside, wherein one end of the resin inner pipe (2) extends to the outside to form a protruding section (21), the other end of the resin inner pipe (2) is opened to form a flaring (22), and the protruding sections (21) of the adjacent resin inner pipes (2) are tightly fit in the flaring (22); the outer circumferences of two ends of the pipeline outer pipe (1) form annular flanges (11), and the flanges (11) of the adjacent pipeline outer pipes (1) are tightly connected through fastening bolts.

2. A leak-proof chemical conduit, as defined in claim 1, wherein: a plurality of positioning pins (12) are welded to the opening end face of one end of the outer pipeline pipe (1) in the circumferential direction, and fit grooves are correspondingly formed in the opening end face of the other end of the outer pipeline pipe (1) in the circumferential direction.

3. A leak-proof chemical conduit, as defined in claim 1, wherein: pipeline outer tube (1) outer wall both ends equal circumference welding have a plurality of L shape link arm (3), one end L shape link arm (3) end welding has threaded rod (31), the other end L shape link arm (3) end welding has pole cover (32), pole cover (32) degree of depth is greater than threaded rod (31) length, quick detach nut (33) is installed to pole cover (32) end, quick detach nut (33) and threaded rod (31) agree with each other.

4. A leak-proof chemical conduit, as defined in claim 1, wherein: the inner wall matrix of the outer pipe (1) of the pipeline forms a plurality of humps (13), and the inner resin pipe (2) is tightly fit in the outer pipe (1) of the pipeline through the humps (13).

5. A leak-proof chemical conduit, as defined in claim 1, wherein: an outer sleeve (4) is tightly sleeved outside the joint of the adjacent pipeline outer pipes (1), the outer sleeve (4) is communicated with an overflow pipe (5), and the overflow pipe (5) is communicated with an external recovery device connecting pipe (6).

6. A leak-proof chemical conduit as defined in claim 5, wherein: and a buffer cavity (51) is connected between the overflow pipe (5) and the external recovery device connecting pipe (6).