CN208041412U - A kind of three-way connection for double-layer oil delivery pipe connection - Google Patents

Abstract

The utility model designs a kind of three-way connection for double-layer oil delivery pipe connection, the three-way connection includes supervisor and branch pipe, branch pipe is connected to the middle part of supervisor, tube wall is followed successively by strength layer and impervious barrier from outside to inside, the bore of the spout part of three-way connection is more than the bore in pipe shaft portion, the both ends of interlude on the inside of the pipe shaft portion of supervisor are equipped with annular projection, static conductive layer is equipped between the annular projection at both ends, it is respectively equipped with first electrode and second electrode on the outside of the tube wall at the both ends of supervisor, the first electrode connects the both ends of the resistance wire on the inside of the tube wall at the both ends of supervisor with second electrode；It is equipped with third electrode and the 4th electrode on the outside of the tube wall of branch pipe, is separately connected the both ends of the resistance wire on the inside of the spout part of branch pipe and the tube wall in pipe shaft portion.The supervisor of the three-way connection of the utility model design can once complete the welding of the inner and outer pipes of the double-layer oil delivery pipe at supervisor both ends, easy to use and safe and reliable.

Description

A kind of three-way connection for double-layer oil delivery pipe connection

Technical field

The utility model is related to oil transportation pipe fitting technical fields, and in particular to a kind of three connecting for double-layer oil delivery pipe connection Head.

Background technology

There are two main classes for existing gas station's Buried Oil Pipelines, and one kind is traditional seamless steel pipe, such pipeline exists The problem of corrosion failure oil leak, not only influences gasoline purity, polluted underground water source, it is also possible to cause safety accident；It is another kind of to be The inner wall of plastic layers multiple tube, such pipeline is designed with static conductive layer and impervious barrier successively outward so that pipeline has excellent The performances such as corrosion-resistant, impermeable and electrostatic dissipation.With the raising of national environmental standard, to the environmental-protecting performance of equipment In Oil Service Station It is required that higher and higher.Gas station's oil pipeline is as one of main oil product source of leakage in gas station, also increasingly by country Pay attention to.Gas station preferably selects in double-layer oil delivery pipe road the nonmetallic composite manufacture for being suitble to oil product conveying, current application more wide General nonmetallic composite is mainly the thermoplastics such as polyethylene.When being attached at present for polyethylene pipe, mainly adopt The connection type of butt welding is carried out with connector, there are two types of main welding manners, and one is sweat soldering, another kind is electricity Fusion welding.When welding double-layer oil delivery pipe using tee connector, need respectively to weld inner tube, outer tube, it is complete It is needed by least 6 times welding at the connection of a three-way connection, program is cumbersome；In addition existing three-way connection does not account for defeated In oil pipe the problem of Anti-static, it is very easy to cause because of the structure for being not provided with conduct static in connector quiet in petroleum pipeline Electrofocusing, there are security risks.

Invention content

To solve above-mentioned problems of the prior art, the utility model devises a kind of for double-layer oil delivery pipe connection Three-way connection, the three-way connection includes supervisor and branch pipe, and the branch pipe is connected to the middle part of supervisor, and the two is integrally formed, The tube wall of the three-way connection is followed successively by strength layer and impervious barrier from outside to inside；

The supervisor includes supervisor's spout part at both ends and intermediate supervisor's pipe shaft portion, and the bore of supervisor's spout part is big Bore in supervisor's pipe shaft portion；On the inside of the tube wall in supervisor's pipe shaft portion one is respectively equipped in the both sides with branch pipe junction The first annular projection is enclosed, static conductive layer is equipped on the inside of the tube wall between two the first annular projections；The branch pipe includes branch pipe pipe Oral area and branch pipe pipe shaft portion, the bore of the branch pipe spout part are more than the bore in branch pipe pipe shaft portion；The pipe of the supervisor and branch pipe Electrode is respectively equipped on the outside of wall, the electrode connection is wound in the resistance wire on the inside of tube wall.Spout part is used for connected double-layer oil transportation The outer tube of pipe, pipe shaft portion are used for the inner tube of connected double-layer petroleum pipeline, and annular projection can block inner tube top when inner tube is inserted into, Inner tube to avoid double-layer oil delivery pipe in supervisor is inserted into too deep and results in blockage to the pipeline of branch pipe, and static conductive layer connects both ends pair The static conductive layer of the petroleum pipeline connect, plays the role of conduct static；Resistance wire is wrapped in the inside of tube wall, is embedded in impervious barrier In, the tube wall of impervious barrier and petroleum pipeline can be heated simultaneously, be powered to electrode when being welded, Resistant heating makes The tube wall of the impervious barrier and double-layer oil delivery pipe surveyed in tube wall melts, and petroleum pipeline and three-way connection are combined together.

Further, two electrodes are respectively equipped on the outside of the tube wall at the both ends of the supervisor, in the tube wall at the both ends of supervisor Side is wound with a resistance wire respectively, and two electrodes control the energization of a resistance wire, and resistance wire is wrapped on the outside of static conductive layer The supervisor pipe shaft portion at end and the tube wall inside for being responsible for spout part.When being welded with double-layer oil delivery pipe, a resistance wire is simultaneously The spout part and pipe shaft portion of being responsible for one end are heated, connector and double-layer oil delivery pipe inner and outer tubes can be disposably completed Welding.Branch pipe is equally completed at the same time the welding of connector and double-layer oil delivery pipe inner tube and appearance using a resistance wire.

Further, a resistance wire, the pipe at the both ends of the supervisor also can be selected to be further simplified welding procedure First electrode and second electrode are respectively equipped on the outside of wall, the first electrode and second electrode are separately connected in supervisor's tube wall The both ends of the first resistor silk of side, the both ends of the first resistor silk be wound in respectively static conductive layer both sides supervisor's pipe shaft portion and It is responsible for the inside of the tube wall of spout part；It is powered to first electrode and second electrode, first resistor silk can be simultaneously to supervisor both ends Tube wall is heated, and the welding of the outer tube, inner tube of the double-layer oil delivery pipe at supervisor both ends, further letter can be completed in once electrification The link program of welding is changed.

It is equipped with third electrode and the 4th electrode on the outside of the tube wall of the branch pipe, is located at the both ends of branch pipe, the third Electrode and the 4th electrode are separately connected the both ends of the second resistance silk on the inside of branch pipe wall, and the second resistance silk is wound in On the inside of the spout part of branch pipe and the tube wall in pipe shaft portion.Second resistance silk can simultaneously heat the pipe shaft portion of branch pipe, spout part, once The welding of branch pipe and double-layer oil delivery pipe inner and outer pipe can be completed at the same time by being powered.

Further, on the inside of the tube wall in the branch pipe pipe shaft portion circle second is being equipped with close to the junction of branch pipe and supervisor Annular projection, the inner tube of the double-layer oil delivery pipe for blocking connecting branch.

Further, Stainless steel tee pipe, the stainless steel are equipped in the impervious barrier of the side wall of the three-way connection Three-way pipe moves towards arrangement according to three-way connection, and the top in the both sides top from supervisor's pipe shaft portion and branch pipe pipe shaft portion extends respectively Outlet spout.Double-layer oil delivery pipe is the leak case of detection inner tube in use would generally be arranged inspection between inner tube and outer tube Survey device, therefore select three-way connection carry out petroleum pipeline docking when, need ensure dock three petroleum pipelines inner and outer pipes it Between cavity can be connected to.Stainless steel tee pipe is placed exactly in when being attached welding on the outer wall of petroleum pipeline inner tube, is ensured It is connected to the connection of cavity between the inner and outer pipes of three petroleum pipelines on three-way connection.

Further, it is straight to be equipped with stainless steel in the impervious barrier of the side tube wall opposite with branch pipe for the supervisor pipe shaft portion Pipe, the stainless steel straight tube is by the rectangular setting of axial direction of supervisor, and the stainless steel straight tube is respectively from the two of supervisor's pipe shaft portion Side top extends outlet spout.Similarly stainless steel straight tube can ensure two petroleum pipelines at the supervisor both ends for being connected to three-way connection The connection of inner and outer pipes cavity, further increases and passes through efficiency.

Further, close to branch pipe in the strength layer at the both ends in supervisor's pipe shaft portion, in branch pipe pipe shaft portion layer It is respectively equipped with peep hole in strength layer at spout part, acicular observation column, the needle are vertically provided in the peep hole The observation column outboard end of shape is flushed with the outer surface of tube wall, and inner end connects the impervious barrier of tube wall.When carrying out petroleum pipeline welding, By antiseepage melting layer, observation column connected to it can be pushed outwardly resistance wire because of the extruding of petroleum pipeline, certain when releasing Distance after, then can determine whether that petroleum pipeline has been completed to weld, indicative function played to welding process.

Further, the supervisor pipe shaft portion and the junction of supervisor's spout part tapered inclined-plane on the outside of tube wall, in pipe The first block machine is respectively formed by the both sides top in supervisor's pipe shaft portion on the inside of wall；The connection in branch pipe pipe shaft portion and branch pipe spout part It is in tapered inclined-plane on the outside of tube wall, the second block machine is formed by the top in branch pipe pipe shaft portion on the inside of tube wall；The stainless steel three Siphunculus respectively supervisor pipe shaft portion both sides the first block machine and branch pipe pipe shaft portion the second block machine surface expose nozzle, it is described not The steel straight tube that becomes rusty exposes nozzle on the surface of the first block machine of supervisor pipe shaft portion both sides respectively.Block machine can when carrying out petroleum pipeline welding To block petroleum pipeline outer tube, petroleum pipeline is avoided to be inserted into three-way connection too deep.

Further, it is respectively equipped on the outside of the electrode and is located at the integrally formed cylinder of the strength layer of tube wall, electrode The top at the center of cylinder, cylinder is equipped with dustproof cover.Cylinder and dustproof cover play the role of to electrode protection.

Further, the branch pipe is arranged with supervisor in 45 degree or 90 degree of angles.

Compared with the existing technology, the utility model design for double-layer oil delivery pipe connection three-way connection have below into Step is responsible for pipe shaft portion and is provided with static conductive layer, can effectively carry out Anti-static, avoid static buildup in petroleum pipeline, subtract first Few security risk；Furthermore the inside of the simultaneously wound spout part and pipe shaft portion at supervisor both ends of resistance wire, a resistance on supervisor Silk, which is powered, can be completed at the same time the heating of spout part and pipe shaft portion to supervisor both ends, be completed at the same time inside and outside the double-layer oil delivery pipe of both sides The welding of pipe simplifies welding procedure；Observation column also in peep hole can play indicative function to welding process, by observing column The height being ejected can judge welding process；Last Stainless steel tee pipe can be connected to stainless steel straight tube to be docked at Cavity between the inner and outer pipes of three double-layer oil delivery pipes on connector, ensures the accurate of leak detection.

Description of the drawings

Fig. 1 is 90 degree of positive threeway axial slices schematic diagrames of the utility model

Fig. 2 is the plan view of 90 degree of positive threeways of the utility model

Fig. 3 is the stereogram of 90 degree of positive threeways of the utility model

Fig. 4 is the plan view of 45 degree of skew Ts of the utility model

In figure：1 supervisor, 2 branch pipes, 11 supervisor's spout parts, 12 supervisor's pipe shaft portions, 13 stainless steel straight tubes, 14 Stainless steel tees Pipe, 21 branch pipe spout parts, 22 branch pipe pipe shaft portions, 30 cylinders, 31 first electrodes, 32 second electrodes, 33 third electrodes, 34 the 4th electricity Pole, 41 peep holes, 42 observation columns, 121 first block machines, 122 first annular projections, 123 static conductive layers, 221 second block machines, 222 Second annular projection

Specific implementation mode

The utility model is described further in the following with reference to the drawings and specific embodiments.

Embodiment one

As shown in Figs. 1-3, the utility model designs a kind of the first reality of the three-way connection for double-layer oil delivery pipe connection Example, including supervisor 1 and branch pipe 2 are applied, branch pipe 2 is vertically installed in the middle part of supervisor 1, and the two is integrally formed, the tube wall of three-way connection It is followed successively by two layers of strength layer and impervious barrier from outside to inside.

Supervisor 1 includes supervisor's spout part 11 at both ends and intermediate supervisor's pipe shaft portion 12, and the bore of supervisor's spout part 11 is wanted More than the bore in supervisor pipe shaft portion 12, the junction of the two tapered inclined-plane on the outside of tube wall is managed in the inside of tube wall by supervisor The both sides top in body portion 12 is respectively formed outer tube of first block machine 121 for double-layer oil delivery pipe when blocking connection.

There is first annular projection of circle respectively in the both sides of the junction with branch pipe 2 on the inside of the tube wall in supervisor's pipe shaft portion 12 122, the impervious barrier of the first annular projection 122 and tube wall is integrally formed, and is set on the inside of the tube wall between two first annular projections 122 There is static conductive layer 123.Be responsible for pipe shaft portion 12 with stainless steel straight tube 13 is equipped in the impervious barrier of 2 opposite side tube wall of branch pipe, no Steel straight tube 13 become rusty along the axial direction setting in supervisor's pipe shaft portion 12, length is identical as the length in supervisor's pipe shaft portion 12, and stainless steel is straight Pipe 13 exposes nozzle on the surface of the first block machine 121 of 12 both sides of supervisor's pipe shaft portion respectively.

Branch pipe 2 includes branch pipe spout part 21 and branch pipe pipe shaft portion 22, the junction of the two tapered inclined-plane on the outside of tube wall, The second block machine 221, the outer tube for blocking connected double-layer petroleum pipeline are formed by the top in branch pipe pipe shaft portion 22 in the inside of tube wall. It is being equipped with second annular projection 222 of circle with 1 junction of supervisor on the inside of the tube wall in branch pipe pipe shaft portion 22, for blocking connected double-layer The inner tube of petroleum pipeline.

As shown in Fig. 2, being respectively equipped with the (figure of Stainless steel tee pipe 14 in the impervious barrier of the tube wall of the two sides of three-way connection Shown in middle dotted line), Stainless steel tee pipe 14 moves towards to be arranged according to the shape of three-way connection, the length in the pipe shaft portion at length and place It is identical, and respectively in the table of second block machine 221 on 22 top of the first block machine 121 and branch pipe pipe shaft portion at 12 both ends of supervisor's pipe shaft portion Show outlet spout.

The both ends and branch pipe pipe shaft portion 12 in supervisor's pipe shaft portion 12 are respectively equipped in the strength layer at branch pipe spout part 11 Peep hole 41 is equipped with acicular observation column 42 in peep hole 41, and the outboard end of observation column 42 is concordant with tube wall outer surface, inside End is extend into the impervious barrier of tube wall.

For ease of the insertion of petroleum pipeline, the edge inner wall for the open end for being responsible for spout part 1 and branch pipe spout part 21 can be set Cone structure is counted into, first electrode 31 and second electrode 32 are respectively equipped on the outside of the tube wall for the pipe spout part 11 for being responsible for 1 both ends, First electrode 31 and second electrode 32 are separately connected the supervisor's pipe shaft portion 12 for being wound in 123 both sides of static conductive layer and supervisor's spout part The both ends of first resistor silk on the inside of 11 tube wall.

Third electrode 33 is equipped on the outside of the tube wall of branch pipe spout part 21, the outside in branch pipe pipe shaft portion 22 is equipped with the 4th electrode 34, third electrode 33 and the 4th electrode 34 are separately connected on the inside of the tube wall for being wound in branch pipe pipe shaft portion 22 and branch pipe spout part 21 The both ends of second resistance silk.

First electrode 31, second electrode 32, third electrode 33 and the 4th electrode 34 lateral surface be equipped with and tube wall strength layer Integrally formed cylinder 30, electrode are located at the center of cylinder 30, and dustproof cover is stamped on the top of cylinder 30.Above-mentioned resistance wire is embedded In impervious barrier on the inside of the tube wall where it, when use, can simultaneously heat impervious barrier and double-layer oil delivery pipe.

Embodiment two

As shown in figure 4, second of embodiment of the three-way connection of the utility model design, embodiment two is in one base of embodiment On plinth, branch pipe 2 is connected in 45 degree angles be responsible for 1 middle part, in Stainless steel tee pipe 14 (in figure shown in dotted line) Shape is consistent with the shape of three-way connection.

The branch pipe of the utility model can also be in that other angles are connect according to the requirement of actual use with supervisor.

The above is only the preferred embodiment of the invention, and the implementation model of the invention cannot be limited with this It encloses, i.e., every simple equivalent changes and modifications made according to the invention claim and innovation and creation description, All still fall within the range that the invention is covered.

Claims (10)

1. a kind of three-way connection for double-layer oil delivery pipe connection, which is characterized in that the three-way connection includes supervisor and branch pipe, The branch pipe is connected to the middle part of supervisor, and the tube wall of the three-way connection is followed successively by strength layer and impervious barrier from outside to inside；

The supervisor includes supervisor's spout part at both ends and intermediate supervisor's pipe shaft portion, and the bore of supervisor's spout part is more than institute State the bore in supervisor's pipe shaft portion；On the inside of the tube wall in supervisor's pipe shaft portion the first ring is respectively equipped in the both sides with branch pipe junction Shape is raised, and static conductive layer is equipped on the inside of the tube wall between two the first annular projections；

The branch pipe includes branch pipe spout part and branch pipe pipe shaft portion, and the bore of the branch pipe spout part is more than the mouth in branch pipe pipe shaft portion Diameter；

Electrode is respectively equipped on the outside of the tube wall of the supervisor and branch pipe, the electrode connection is wound in the resistance wire on the inside of tube wall.

2. three-way connection according to claim 1, which is characterized in that be respectively equipped on the outside of the tube wall at the both ends of the supervisor The tube wall inside of two electrodes, the both ends of supervisor is wound with a resistance wire respectively, and two resistance wires are respectively wound around static conductive The supervisor pipe shaft portion of layer both sides and the tube wall inside for being responsible for spout part.

3. three-way connection according to claim 1, which is characterized in that be equipped on the outside of the tube wall of the supervisor first electrode and Second electrode, is located at the both ends of supervisor, and the first electrode and second electrode are separately connected on the inside of supervisor's tube wall The both ends of first resistor silk, the first resistor silk are wound in supervisor's pipe shaft portion and the supervisor's spout part of static conductive layer both sides respectively Tube wall inside；

It is equipped with third electrode and the 4th electrode on the outside of the tube wall of the branch pipe, is located at the both ends of branch pipe, the third electrode The both ends of the second resistance silk on the inside of branch pipe wall are separately connected with the 4th electrode, the second resistance silk is wound in branch pipe Spout part and pipe shaft portion tube wall on the inside of.

4. according to claim 1,2 or 3 any one of them three-way connections, which is characterized in that the tube wall in branch pipe pipe shaft portion Inside is being equipped with the second annular projection close to the junction of branch pipe and supervisor.

5. three-way connection according to claim 4, which is characterized in that in the impervious barrier of the side wall of the three-way connection Equipped with Stainless steel tee pipe, the Stainless steel tee pipe moves towards to arrange according to three-way connection, and respectively from supervisor's pipe shaft portion The top in both sides top and branch pipe pipe shaft portion extends outlet spout.

6. according to claim 1,2,3 or 5 any one of them three-way connections, which is characterized in that supervisor's pipe shaft portion with Stainless steel straight tube is equipped in the impervious barrier of the opposite side tube wall of branch pipe, the stainless steel straight tube rectangular is set by the axial direction of supervisor It sets, the stainless steel straight tube extends outlet spout from the both sides top in supervisor's pipe shaft portion respectively.

7. three-way connection according to claim 6, which is characterized in that in the strength layer at the both ends in supervisor's pipe shaft portion, Branch pipe pipe shaft portion is respectively equipped with peep hole in the strength layer at branch pipe spout part, and needle is respectively equipped in the peep hole The observation column of shape, the acicular observation column outboard end are flushed with the outer surface of tube wall, and inner end connects impervious barrier.

8. three-way connection according to claim 7, which is characterized in that the supervisor pipe shaft portion and the connection for being responsible for spout part It is in tapered inclined-plane on the outside of tube wall, the first block machine is respectively formed by the both sides top in supervisor's pipe shaft portion on the inside of supervisor's tube wall； Branch pipe pipe shaft portion and the junction of branch pipe the spout part tapered inclined-plane on the outside of tube wall, by branch pipe pipe on the inside of branch pipe wall The top in body portion forms the second block machine；The Stainless steel tee pipe is respectively in the first block machine and branch pipe pipe of supervisor pipe shaft portion both sides Nozzle is exposed on the surface of second block machine on body portion top, and the stainless steel straight tube is respectively in the first block machine of supervisor pipe shaft portion both sides Surface expose nozzle.

9. three-way connection according to claim 7 or 8, which is characterized in that be respectively equipped on the outside of the electrode and tube wall The integrally formed cylinder of strength layer, electrode is located at the center of cylinder, and the top of cylinder is equipped with dustproof cover.

10. wanting 1,2,3,5,7 or 8 any one of them three-way connections according to right, which is characterized in that the branch pipe is in supervisor 45 degree or 90 degree of angle settings.