CN212642620U

CN212642620U - Non-heat-insulation oil pipe structure

Info

Publication number: CN212642620U
Application number: CN202020863065.XU
Authority: CN
Inventors: 陈健; 涂君
Original assignee: Tianjin Baian Technology Co ltd
Current assignee: Tianjin Baian Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-03-02
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a no thermal-insulated oil pipe structure belongs to thermal-insulated oil pipe technical field, the female joint comprises an outer tube, the inside embedding of outer tube has the inner tube, and the inner wall department arch of outer tube has the rubber boss, the outer tube inner wall department turning in the rubber boss outside has the screw thread, and the screw thread outside screw thread has connect threaded sleeve's outside screw thread soon, threaded sleeve's middle part is run through there is the inner tube, the outer wall department welding of outer tube has the ring flange, and the pinhole has been seted up in the outside of ring flange, stretches out the ring flange of outer tube with the inner tube, and when the ring flange of outer tube links up with outside pipeline, the mouth of pipe of rubber inner pad and the outside pipeline of chimb laminating can be taken to the inner tube, and then the inner tube is outside inside oppression rubber inner pad of pipeline.

Description

Non-heat-insulation oil pipe structure

Technical Field

The utility model relates to a thermal-insulated oil pipe technical field especially relates to a no thermal-insulated oil pipe structure.

Background

The heat insulation oil pipe is an oil pipe with heat insulation function used in the process of exploiting thick oil by injecting steam, and is a double-layer concentric pipe column, and the annular space of the two layers of pipes is filled with heat insulation materials, inert gases or vacuum. When the steam is injected to recover the thick oil, the heat insulation oil pipe is used, so that the heat loss can be reduced, and the steam dryness can be improved. The prestressed heat-insulating oil pipe can overcome the expansion deformation caused by temperature change. The basic structure of the heat insulation oil pipe produced in 1985 in China is composed of an outer pipe and an inner pipe, heat insulation materials such as perlite powder, superfine glass wool, argon, krypton gas, xenon and the like are filled between the two pipes, the maximum service temperature can reach 400 ℃, and the heat insulation service life can reach 30 handling cycles generally.

Patent No. CN 201920785635.5's a no heat point heat-insulating tubing coupling heat-insulating structure, including oil pipe body and tubing coupling, the oil pipe body includes oil pipe outer tube and oil pipe inner tube, and the oil pipe inner tube welded fastening is in the oil pipe outer tube, be equipped with the body annular space between oil pipe outer tube and the oil pipe inner tube, the utility model discloses a set up tubing coupling annular space, design the tubing coupling into vacuum heat-insulating mode, form the true "hot spot" heat-insulating tubing string structure that does not have, improve the heat-insulating properties of heat-insulating tubing string, solve the quality hidden danger that coupling department vaporization corrosion arouses, can popularize and apply to fields such as viscous crude development and superdeep well heat preservation lift simultaneously, have the significance to the reduction cost increase of viscous crude thermal recovery, set up simultaneously inside seal circular bead, outside seal circular bead and sealing ring, after the installation, inside seal circular bead, outside seal circular bead and sealing, effectively preventing formation water from entering the lining material to further cause lining collapse and coupling corrosion.

1. When the non-heat-insulation oil pipe in the prior art suffers from impact, an external pipeline is easy to deform and damage, an inner pipe in the outer pipe is probably not damaged, but the outer pipe and the inner pipe of the existing non-heat-insulation oil pipe are mostly of fixed integral structures, so that the whole end pipe body needs to be abandoned after the outer pipe deforms, the inner pipe without the heat-insulation oil pipe is wasted, and therefore, a non-heat-insulation oil pipe structure is provided.

2. The non-heat-insulation oil pipe in the prior art is locked by the flange plate in an embedded mode when the pipe is connected, the locking structure is simple, gaps are prone to occurring after the pipe opening connection position is used for a long time, and then the pipe connection position is prone to leaking, and therefore the non-heat-insulation oil pipe structure is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a non-heat insulation oil pipe structure, after the inner pipe is embedded into the outer pipe by turning the threads on the inner wall of the outer pipe, the thread sleeve on the outer side of the inner pipe is screwed and fixed with the threads of the outer pipe clockwise, and the inner wall of the outer tube is provided with a rubber boss for stopping the rear end of the threaded sleeve to prevent the threaded sleeve from excessively penetrating into the outer tube, the inner tube is held by the outer tube after the outer tube is damaged and is screwed out anticlockwise, at the moment, the threaded sleeve outside the inner tube is separated from the screw teeth, then the inner pipe is pulled outwards with force to separate the inner pipe from the outer pipe, then the inner pipe is nested and screwed with a new outer pipe, the inner pipe extends out of the flange of the outer pipe, when the flange of the outer pipe is connected with the external pipe, the inner pipe can be attached to the pipe orifice of the external pipe with the rubber inner pad and the convex edge, and then the inner tube compresses the rubber inner pad and the chimb in the outside pipeline to form sealed attached structure, and the mouth of pipe that strengthens thermal-insulated oil pipe links up sealing performance.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of no thermal-insulated oil pipe structure, the female joint comprises an outer pipe, the inside embedding of outer tube has the inner tube, and the inner wall department arch of outer tube has the rubber boss, the outer tube inner wall department turning in the rubber boss outside has the screw thread, and screw thread outside screw thread has connect the telescopic outside screw thread of screw thread soon, the telescopic middle part of screw thread runs through there is the inner tube, the outer wall department welding of outer tube has the ring flange, and the pinhole has been seted up in the outside of ring flange.

Optionally, the inner pipe extends out of the inner groove of the flange plate, the outer wall surface of the pipe opening of the inner pipe is adhered with the rubber inner pad through the solvent, the surface of the rubber inner pad is provided with a convex edge in a protruding mode, and the rubber inner pad is provided with a porous inner cavity inside.

Optionally, perlite powder is filled between the outer tube and the inner tube.

Optionally, a rubber ring gasket is vulcanized at the rear end of the threaded sleeve, and the rubber ring gasket is fitted to the front end of the rubber boss.

The utility model has the advantages as follows:

1. the utility model discloses an inner wall turning department screw thread at the outer tube, with the outside pipe embedding back of inner tube, the screw sleeve in the inner tube outside connects fixedly with the screw thread of outer tube soon clockwise, and the inner wall of outer tube has the rubber boss to stop the screw sleeve rear end, prevent that the screw sleeve from too much deepening the outer tube, the outer tube is damaged and is held the inner tube and outwards unscrew anticlockwise, the screw sleeve in the inner tube outside breaks away from screw thread department this moment, then the outside pulling inner tube of power, make the inner tube break away from and go out in following the outer tube, then connect alright with inner tube and new outer tube nestification soon, the problem that the inner tube can't take out the utilization when the outer tube of current thermal-insulated oil.

2. The utility model discloses a stretch out the ring flange of outer tube with the inner tube, when the ring flange of outer tube links up with outside pipeline, the inner tube can take the mouth of pipe of pad and chimb laminating outside pipeline in the rubber, and then the inner tube outside pipeline inside oppress in the rubber pad and chimb form sealed attached structure, and the reinforcing is thermal-insulated oil pipe's mouth of pipe links up sealing performance, has solved the current not good problem of pipeline structure kneck leakproofness of thermal-insulated oil pipe.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a non-insulated tubing structure according to an embodiment of the present invention.

Fig. 2 is a nozzle of a structure without an insulated oil pipe according to an embodiment of the present invention.

In the figure: 1. an outer tube; 2. an inner tube; 3. perlite powder; 4. a rubber boss; 5. screw teeth; 6. a threaded sleeve; 7. a rubber inner pad; 8. a convex edge; 9. a flange plate; 10. a pin hole; 11. a rubber ring pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

An uninsulated oil pipe structure according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1-2, the embodiment of the utility model provides a no heat insulating oil pipe structure, including outer tube 1, the inside embedding of outer tube 1 has inner tube 2, and the inner wall department arch of outer tube 1 has rubber boss 4, the turning of 1 inner wall department of outer tube in the 4 outsides of rubber boss has

thread

5, and 5 outside threads of thread connect soon the outside screw thread of threaded sleeve 6, inner tube 2 has been run through at the middle part of threaded sleeve 6, the welding of outer wall department of outer tube 1 has ring flange 9, and the pinhole 10 has been seted up in the outside of ring flange 9.

Illustratively, a screw thread 5 is turned on the inner wall of an outer pipe 1, after an inner pipe 2 is embedded into the outer pipe 1, a threaded sleeve 6 on the outer side of the inner pipe 2 is screwed and fixed with the screw thread 5 of the outer pipe 1 clockwise, and a rubber boss 4 is arranged on the inner wall of the outer pipe 1 to stop the rear end of the threaded sleeve 6, so that the threaded sleeve 6 is prevented from excessively penetrating into the outer pipe 1, the inner pipe 2 is held after the outer pipe 1 is damaged and screwed out anticlockwise, at the moment, the threaded sleeve 6 on the outer side of the inner pipe 2 is separated from the screw thread 5, then the inner pipe 2 is pulled outwards with force, so that the inner pipe 2 is separated from the outer pipe 1, then the inner pipe 2 is nested and screwed with a new outer pipe 1, and a flange 9 of the outer pipe 1 can be connected with a disc body of an outer pipe and then is locked with.

Referring to fig. 1-2, the inner pipe 2 extends out of the inner groove of the flange 9, the outer wall surface of the opening of the inner pipe 2 is adhered with a rubber inner pad 7 by a solvent, a convex edge 8 is protruded on the surface of the rubber inner pad 7, and a porous inner cavity is arranged inside the rubber inner pad 7.

The example, stretch out inner tube 2 flange 9 of outer tube 1, when the flange 9 of outer tube 1 links up with outside pipeline, inner tube 2 can take the mouth of pipe of pad 7 and the 8 laminating outside pipelines in the rubber, and then inner tube 2 outside pipeline inside oppression rubber pad 7 and the 8 formation sealed attached structure of chimb, reinforcing thermal-insulated oil pipe's mouth of pipe links up sealing performance.

Referring to fig. 1, perlite powder 3 is filled between the outer tube 1 and the inner tube 2.

As an example, perlite powder 3 filled between the outer tube 1 and the inner tube 2 may serve as a heat insulation filling material.

Referring to fig. 1, the rear end of the threaded sleeve 6 is vulcanized with a rubber ring pad 11, and the rubber ring pad 11 is attached to the front end of the rubber boss 4.

For example, after the rubber ring pad 11 is attached to the rubber boss 4, a sealing structure is formed between the outer tube 1 and the inner tube 2 to prevent the perlite powder 3 from escaping outwards.

The utility model relates to a non-heat insulation oil pipe structure, turn a thread 5 at the inner wall of an outer pipe 1, after embedding an inner pipe 2 into the outer pipe 1, a thread sleeve 6 at the outer side of the inner pipe 2 is screwed and fixed with the thread 5 of the outer pipe 1 clockwise, and the inner wall of the outer pipe 1 is provided with a rubber boss 4 to stop the rear end of the thread sleeve 6, so as to prevent the thread sleeve 6 from excessively penetrating into the outer pipe 1, the inner pipe 2 is held after the outer pipe 1 is damaged and screwed out anticlockwise, at the moment, the thread sleeve 6 at the outer side of the inner pipe 2 is separated from the thread 5, then the inner pipe 2 is pulled outwards with force, so that the inner pipe 2 is separated from the outer pipe 1 and is screwed out, then the inner pipe 2 is nested with a new outer pipe 1, the flange 9 of the outer pipe 1 can be connected with the disk body of the outer pipe, then the bolt is used for passing through a pinhole 10 of the flange 9, when the ring flange 9 of outer tube 1 links up with outside pipeline, the mouth of pipe of pad 7 and the 8 laminating outside pipelines in the chimb in the rubber can be taken to inner tube 2, and then inner tube 2 outside pipeline inside oppression rubber pad 7 and chimb 8 form sealed attached structure, reinforcing heat-insulating oil pipe's mouth of pipe links up sealing performance.

It should be noted that, the utility model relates to a there is not thermal-insulated oil pipe structure, including outer tube 1, inner tube 2, pearlite powder 3, rubber boss 4, thread 5, threaded sleeve 6, rubber inner pad 7, chimb 8, ring flange 9, pinhole 10, rubber ring pad 11, the part is general standard component or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An there is not thermal-insulated oil pipe structure, includes outer tube (1), its characterized in that: the inside embedding of outer tube (1) has inner tube (2), and the inner wall department arch of outer tube (1) has rubber boss (4), the turning of outer tube (1) inner wall department in the rubber boss (4) outside has screw thread (5), and screw thread (5) outside screw thread has connect the outside screw thread of threaded sleeve (6) soon, the middle part of threaded sleeve (6) is run through and is had inner tube (2), the outer wall department welding of outer tube (1) has ring flange (9), and pinhole (10) have been seted up in the outside of ring flange (9).

2. The uninsulated tubing structure of claim 1, wherein: the inner pipe (2) extends out of an inner groove of the flange plate (9), a rubber inner pad (7) is bonded on the outer wall surface solvent at the pipe orifice of the inner pipe (2), a convex edge (8) is arranged on the surface of the rubber inner pad (7), and a porous inner cavity is formed in the rubber inner pad (7).

3. The uninsulated tubing structure of claim 1, wherein: and perlite powder (3) is filled between the outer tube (1) and the inner tube (2).

4. The uninsulated tubing structure of claim 1, wherein: the rear end of the threaded sleeve (6) is vulcanized with a rubber ring gasket (11), and the rubber ring gasket (11) is attached to the front end of the rubber boss (4).