CN106678458A

CN106678458A - Duplex easy-to-directly-connect petroleum pipeline joint

Info

Publication number: CN106678458A
Application number: CN201710069627.6A
Authority: CN
Inventors: 朱政鹏
Original assignee: Jiangsu Longqi Rubber Co Ltd
Priority date: 2017-02-08
Filing date: 2017-02-08
Publication date: 2017-05-17
Anticipated expiration: 2037-02-08
Also published as: CN106678458B

Abstract

The invention discloses a duplex easy-to-directly-connect petroleum pipeline joint. The duplex easy-to-directly-connect petroleum pipeline joint comprises an outer protective layer pipe, wherein the diameters of pipe openings at the two ends of the outer protective layer pipe are larger than the diameter of a pipe body of the outer protective layer pipe; a fusion layer pipe which is integrated with the outer protective layer pipe through injection molding is arranged in the outer protective layer pipe; and a multi-strand alloy steel wire is uniformly wound on the outer circle of the fusion layer pipe, one end of the alloy steel wire is connected with a conductive positive electrode end joint at the outer side of the outer protective layer pipe, and the other end of the alloy steel wire is connected with a conductive negative electrode end joint at the outer side of the outer protective layer pipe. The duplex easy-to-directly-connect petroleum pipeline joint is simple in structure and convenient to use, can tightly connect a first oil delivery pipeline and a second oil delivery pipeline and greatly reduces the leakage probability of the pipelines at the connecting joint part.

Description

A kind of easily direct Petroleum Pipehead of duplex

Technical field

The present invention relates to a kind of easily direct Petroleum Pipehead of duplex.

Background technology

With the raising of national environmental standard, more and more higher is required to the environmental-protecting performance of equipment In Oil Service Station.Gas station's oil transportation Pipeline is also increasingly paid attention to as one of main source of leaks in gas station by country.

Recently, quarantine what general bureau write by the quality supervision and test of national environmental protection portion《Gas station oozes, leakage pollution is controlled Standard (exposure draft)》Regulation：Gas station's double-layer oil delivery pipe line preferably selects the nonmetallic composite system for being adapted to oil product conveying Make.The relatively broad nonmetallic composite of current application is mainly the thermoplastics such as polyethylene.

At present for the major way of polyethylene tube welding has two kinds, one kind is sweat soldering, and another kind is electric fusion welding. CN200710200834.7 is related to the method for attachment of joint for drip irrigation belt, is a kind of drip-irrigation zone joint hot-melting welding method.The drip irrigation Belt lacing sweat soldering method is comprised the following steps：First, one end of a drip irrigation zone is inserted in another drip irrigation zone；Its It is secondary, the one side of two drip irrigation zone intersections is placed on into the heating plate working region of hot melting equipment, apply on heating sheet devices Plus pressure at right angle is pressurizeed to drip irrigation zone intersection, heated while pressurization, heating continues to pressurize after finishing, plus Pressure takes out drip irrigation zone after finishing from heating plate working region, and the another side of two drip irrigation zone intersections is placed on into hot melting equipment Heating plate working region, repeat aforesaid operations.

The union joint that existing oil transportation is adopted, the sealing of its connected mode is poor, and bonding strength is not high, uses Easily thread off after a period of time, the leakage of oil is caused, so as to cause the waste of resource, here it is existing for prior art not Foot part.

The content of the invention

The present invention seeks to the defect for being directed to prior art presence provides a kind of duplex easily direct Petroleum Pipehead.

The present invention for achieving the above object, is adopted the following technical scheme that：A kind of easily direct Petroleum Pipehead of duplex, including Outer jacket pipe, the spout part at the two ends of the outer jacket pipe is with diameter greater than its pipe shaft portion diameter；Wherein, set in the outer jacket pipe The welding layer pipe being equipped with together with outer jacket pipe injection；Uniform winding has multiply alloy on the outer ring of the welding layer pipe Wire, one end of the steel alloy silk thread is connected with the positive conductive electrode end connector being arranged on the outside of the outer jacket pipe, described The other end of steel alloy silk thread is connected with the conductive negative pole end connector being arranged on the outside of the outer jacket pipe；The welding layer pipe One end is located at the left end spout part of the outer jacket pipe and is provided with the first inner restrictive coating pipe, and the other end of the welding layer pipe is located at The right-hand member spout part position of the outer jacket pipe is provided with the second inner restrictive coating pipe；The first inner restrictive coating pipe and described second Internal diameter of the internal diameter of inner restrictive coating pipe more than the welding layer pipe pipe shaft；Wherein, the wall thickness of the outer jacket pipe is melted with described Connect three times of wall thickness of layer pipe；The outer jacket pipe and welding layer pipe are made by polyethylene, and its minimum desired strength (MRS) is PE120 levels；The first inner restrictive coating pipe and the second inner restrictive coating pipe are by polyethylene-polyvinyl alcohol copolymer and polyethylene Grafted maleic anhydride blending is constituted.

Further, the spout part phase with the two ends of the outer jacket pipe is axially embedded with the tube wall of the welding layer pipe The copper pipe of connection；The first clearance layer is formed between the first inner restrictive coating pipe and first oil pipeline；Described second The second clearance layer is formed between inner restrictive coating pipe and second oil pipeline.

Further, the inwall of the welding layer pipe is closely pasted with the outer wall of the first oil pipeline and the second oil pipeline Close.

Beneficial effects of the present invention：Present configuration is simple, easy to use, can be by the first petroleum pipeline and the second petroleum pipeline Closely couple together, greatly reduce the leakage probability of pipeline at jointing.

Description of the drawings

Fig. 1 is the structural representation of the present invention.

Specific embodiment

Shown in Fig. 1, it is related to a kind of easily direct Petroleum Pipehead of duplex, including outer jacket pipe 1, the outer jacket pipe 1 The spout part 12 at two ends is with diameter greater than its diameter of pipe shaft portion 11；Wherein, it is provided with and the outer jacket pipe in the outer jacket pipe 1 1 injection welding layer pipe 13 together；Uniform winding has multiply steel alloy silk thread 15 on the outer ring of the welding layer pipe 13, described One end of steel alloy silk thread 15 is connected with the positive conductive electrode end connector 16 for being arranged on the outside of the outer jacket pipe 1, the steel alloy The other end of silk thread 15 is connected with the conductive negative pole end connector 18 for being arranged on the outside of the outer jacket pipe 1；The welding layer pipe 13 One end be located at the left end spout part 14 of the outer jacket pipe 1 and be provided with the first inner restrictive coating pipe 21, the welding layer pipe 13 The other end is installed positioned at the position of the right-hand member mouth of pipe 17 of the outer jacket pipe 1 and is equipped with the second inner restrictive coating pipe 22；Shield in described first Internal diameter of the internal diameter of jacket layer pipe 21 and the second inner restrictive coating pipe 22 more than the pipe shaft of welding layer pipe 13.It is optimal in order to reach Performance, the wall thickness of the outer jacket pipe 1 is three times with the wall thickness of the welding layer pipe 13.

Wherein, the outer jacket pipe 1 and welding layer pipe 13 are made by polyethylene, and its minimum desired strength (MRS) is PE120 levels；The first inner restrictive coating pipe 21 and the second inner restrictive coating pipe 22 by polyethylene-polyvinyl alcohol copolymer with it is poly- The blending of Vinyl Graft maleic anhydride is constituted.The outer jacket pipe 1 being made up of polyethylene, possesses high mechanical performance and corrosion resistance Energy.The inner restrictive coating pipe being made up of with Research of Grafting Malaic Anhydride Onto Polyethylene blending the copolymer of polyethylene-polyvinyl alcohol, can be effective The infiltration of oil molecule is intercepted, and has good bonding with polyethylene, the infiltration of fuel oil can be intercepted during conveying fuel oil.

Wherein, the spout part phase with the two ends of the outer jacket pipe 1 is axially embedded with the tube wall of the welding layer pipe 13 The copper pipe 4 of connection；The first clearance layer 23 is formed between the first inner restrictive coating pipe 21 and first oil pipeline 31；Institute State and the second clearance layer 24 is formed between the second inner restrictive coating pipe 22 and second oil pipeline 32.

Wherein, the inwall for stating welding layer pipe 13 is closely pasted with the outer wall of the first oil pipeline 31 and the second oil pipeline 32 Close.

When using, the first oil pipeline 31 and the second oil pipeline 32 are inserted into respectively the Petroleum Pipehead two of the present invention End, and cause the first oil pipeline 31 and the mouth of pipe of the second oil pipeline 32 to be docking together as far as possible, then to positive conductive electrode end Joint 16 and conductive negative pole end connector 18 carry out energization connection so that the electrified regulation of steel alloy silk thread 15, then fuse layer pipe 13 Will be melted so that closely fusion is viscous for the pipe shaft of external sheath layer 1, the pipe shaft of welding layer pipe 13 and first, second oil pipeline It is connected together；And cause the spout part of external sheath layer 1, the spout part of welding layer pipe 13 and first, second inner restrictive coating pipe 21st, 22 can closely merge and bond together；Thus just overall first, second oil pipeline can be coupled together closely, Greatly reduce the leakage probability of pipeline at jointing.

Simultaneously as being axially embedded with the spout part with the two ends of the outer jacket pipe 1 on the tube wall of welding layer pipe 13 The copper pipe 4 being connected.The purpose of the design is, during design, can be in the first inner restrictive coating pipe 21 or the second inner restrictive coating pipe 22 side is located in the clearance layer and is provided with Oil spills detection sensor (not shown), it is assumed that first at jointing Locally there is oil infiltration leakage in the oil pipeline 32 of oil pipeline 31 or second, the oil of leakage is flowed into first by copper pipe 4 (position that sensor is arranged specifically is seen in the clearance layer 24 of clearance layer 23 or second), such sensor will detect leakage Oil, then carries out alarm, and staff can be to process in time, the generation of Accident prevention.

The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims

1. a kind of duplex easily directly Petroleum Pipehead, it is characterised in that including outer jacket pipe, the two ends of the outer jacket pipe Spout part is with diameter greater than its pipe shaft portion diameter；Wherein, it is provided with the outer jacket pipe together with outer jacket pipe injection Welding layer pipe；Uniform winding has multiply steel alloy silk thread, one end of the steel alloy silk thread on the outer ring of the welding layer pipe Be connected with the positive conductive electrode end connector being arranged on the outside of the outer jacket pipe, the other end of the steel alloy silk thread be arranged on institute State the conductive negative pole end connector connection on the outside of outer jacket pipe；One end of the welding layer pipe is located at the left end pipe of the outer jacket pipe Oral area is provided with the first inner restrictive coating pipe, and the other end of the welding layer pipe is located at the right-hand member spout part position of the outer jacket pipe It is provided with the second inner restrictive coating pipe；The internal diameter of the first inner restrictive coating pipe and the second inner restrictive coating pipe is more than the welding The internal diameter of layer pipe pipe shaft；Wherein, the wall thickness of the outer jacket pipe is three times with the wall thickness of the welding layer pipe；The outer jacket Pipe and welding layer pipe are made by polyethylene, and its minimum desired strength (MRS) is PE120 levels；The first inner restrictive coating pipe and Second inner restrictive coating pipe is constituted by polyethylene-polyvinyl alcohol copolymer and Research of Grafting Malaic Anhydride Onto Polyethylene blending.

2. a kind of duplex as claimed in claim 1 easily direct Petroleum Pipehead, it is characterised in that the pipe of the welding layer pipe The copper pipe being connected with the spout part at the two ends of the outer jacket pipe is axially embedded with wall；The first inner restrictive coating pipe and institute State and the first clearance layer is formed between the first oil pipeline；Shape between the second inner restrictive coating pipe and second oil pipeline Into there is the second clearance layer.

3. a kind of duplex as claimed in claim 2 easily direct Petroleum Pipehead, it is characterised in that the welding layer pipe it is interior Wall is brought into close contact with the outer wall of the first oil pipeline and the second oil pipeline.