Aerogel felt heat preservation structure of heat insulation oil pipe

Abstract

The aerogel felt heat preservation structure comprises an inner pipe and an outer pipe, the inner pipe is assembled in the outer pipe and is coaxial with the outer pipe, the two ends of the inner pipe and the two ends of the outer pipe are connected with each other through a plurality of pairs of connecting pieces arranged in an annular array, a plurality of clamping grooves corresponding to the connecting pieces are formed in the inner pipe in an annular array mode, and the clamping grooves correspond to the connecting pieces. A plurality of aerogel felt clamping blocks are assembled in the plurality of clamping grooves; the utility model relates to the technical field of heat insulation oil pipes, in particular to an aerogel felt heat preservation structure of a heat insulation oil pipe, the aerogel felt heat preservation structure is divided into a plurality of sectors, the aerogel felt clamping blocks are limited by matching the aerogel felt clamping blocks with the inner pipe clamping grooves, the aerogel felt clamping blocks of the sectors are in butt joint with one another to form the aerogel felt heat preservation structure, and the heat preservation effect of the aerogel felt heat preservation structure is improved. On one hand, the aerogel felt is fixed through limiting cooperation of the clamping grooves and the aerogel felt clamping blocks and the positioning rods and the transverse linkage ring sleeves instead of a large-area bonding mode, replacement and maintenance are facilitated, and operation is convenient and easy.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-insulated oil pipes, in particular to an aerogel felt insulation structure for heat-insulated oil pipes. Background Art

[0002] Insulated oil pipes are commonly used in modern oil field exploitation and have insulation functions. In the application of modern insulated oil pipes, aerogel felt is a flexible insulation felt made of nano-silicon dioxide or metal aerogel as the main material, which is compounded with carbon fiber or ceramic glass fiber cotton or pre-oxidized fiber felt through a special process.

[0003] Due to its certain tensile and compressive strength and low thermal conductivity, aerogel felt is often used in pipeline insulation. At present, aerogel felt used in insulated oil pipes is mostly tied with iron wire, and can also be heat-shrink-wrapped with an anti-corrosion layer. However, this aerogel felt insulation structure needs to be disassembled and peeled off during maintenance, which is inconvenient. In view of this, in-depth research on the above issues led to the creation of this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an insulating oil pipe aerogel felt insulation structure, which solves the problems of the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an insulating oil pipe aerogel felt insulation structure, comprising an inner pipe and an outer pipe, wherein the inner pipe is assembled in the outer pipe and is coaxial with the outer pipe, and the ends of the inner pipe and the outer pipe are connected to each other by a plurality of pairs of connecting plates arranged in a ring array, and a plurality of slots are formed on the inner pipe in a ring array corresponding to the plurality of connecting plates, and a plurality of aerogel felt blocks are assembled in the plurality of slots;

[0006] Several of the aerogel felt blocks are several arc-less annular plates, and several positioning holes are arranged axially on the aerogel felt blocks. Several clamping holes are provided on the clamping slots corresponding to the several positioning holes, and several positioning rods are installed in the several positioning holes and are threadedly connected to the several clamping holes.

[0007] A pair of protective side wings extend from both sides of the aerogel felt card block, and the pair of protective side wings are attached to the outer arc wall surface of the card slot;

[0008] A pair of transverse connecting rings are respectively provided at both ends of the aerogel felt block, and the pair of transverse connecting rings are respectively bonded to the head end of the aerogel felt block by gluing.

[0009] Preferably, a pair of annular flange plates extend outward from both side ends of the outer tube.

[0010] Preferably, the pair of transverse ring sleeves are a pair of annular structured plates, and the outer peripheral wall surfaces of the pair of transverse ring sleeves match the outer peripheral diameter of the aerogel felt block.

[0011] Preferably, the plurality of connecting plates are rectangular plates, and both ends of the connecting plates are respectively welded to the inner tube and the outer tube.

[0012] Preferably, the pair of protective side wings transition smoothly to the outer curved surface of the aerogel felt block.

[0013] Preferably, the plurality of positioning rods are threaded rods, and the plurality of positioning holes are provided with socket grooves matching the head ends of the positioning rods.

[0014] The utility model provides an aerogel felt insulation structure for insulating oil pipes. The structure has the following beneficial effects: the structure is divided into multiple sectors, and the aerogel felt blocks are matched with the inner pipe slots to limit the aerogel felt blocks. The aerogel felt blocks in the multiple sectors are connected to each other to form the aerogel felt insulation structure. The aerogel felt is fixed by the positioning rods and cross-linking rings, rather than by large-area bonding, making it easy to disassemble, replace, and repair, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the aerogel felt insulation structure of the heat-insulating oil pipe described in the utility model.

[0016] Figure 2 This is a schematic diagram of the blasting structure of the thermal insulation oil pipe aerogel felt insulation structure of the utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the thermal insulation structure of the aerogel felt for the thermally insulated oil pipe according to the present invention.

[0018] In the figure: 1. Inner tube; 2. Outer tube; 3. Connecting piece; 4. Slot; 5. Aerogel felt block; 6. Positioning hole; 7. Positioning rod; 8. Protective wing; 9. Cross-connecting ring; 10. Flange plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3The utility model provides an implementation scheme: in the current application process of the insulation layer of the insulated oil pipe, the insulation layer is mostly composed of aerogel felt. During the application process, the aerogel felt insulation structure of the insulated oil pipe is mostly fixed in the form of bonding or bundling. During the disassembly and replacement process, this method requires the aerogel felt to be destroyed, the operation is cumbersome and inconvenient, and the aerogel felt is easy to adhere to the pipe body during disassembly and assembly.

[0021] In view of the above problems, the present application discloses an aerogel felt insulation structure for a heat-insulating oil pipe, which specifically includes an inner pipe 1 and an outer pipe 2, wherein the inner pipe 1 is assembled in the outer pipe 2 and is coaxial with the outer pipe 2. The inner pipe 1 and the outer appearance together constitute the rigid body of the heat-insulating oil pipe, wherein the inner pipe 1 serves as a circulation pipeline for oil, and the outer pipe 2 is an external body that protects the internal heat insulation layer and the inner pipe 1, and then the two ends of the inner pipe 1 and the outer pipe 2 are connected to each other by a plurality of pairs of connecting pieces 3 arranged in a ring array, so that the inner pipe 1 and the outer pipe 2 are coaxially arranged and the annulus between the inner pipe 1 and the outer pipe 2 is used to arrange the heat insulation layer, and then a plurality of card grooves 4 are opened in a ring array on the inner pipe 1 corresponding to the plurality of connecting pieces 3, and a plurality of aerogel felt blocks 5 are assembled in the plurality of card grooves 4, and the heat insulation layer is composed of a plurality of aerogel felt blocks 5, which are arranged in a ring array on the outer periphery of the inner pipe 1 and fixed in position in cooperation with the card grooves 4. When disassembling and replacing, the plurality of aerogel felt blocks 5 can be directly disassembled and assembled;

[0022] More specifically, the aerogel felt blocks 5 are a plurality of arc-missing annular plates, which match the shapes of the plurality of card slots 4. The aerogel felt blocks 5 and the card slots 4 form a limiting effect, and then a plurality of positioning holes 6 are arranged axially on the aerogel felt blocks 5. The card slots 4 are provided with a plurality of card holes corresponding to the plurality of positioning holes 6. A plurality of positioning rods 7 are assembled in the plurality of positioning holes 6 and are threadedly connected to the plurality of card holes. The positioning rods 7 pass through the positioning holes 6 and are connected to the card control to fix the positioning rods 7. The positioning holes 6 are then tightened by the limiting effect of the head end of the positioning rods 7, so that the aerogel felt blocks 5 are fixed on the card slots 4.

[0023] According to the instruction manual Figure 1-3 It can be seen that a pair of protective side wings 8 are extended from both sides of the aerogel felt card block 5, and the pair of protective side wings 8 are attached to the outer arc wall surface of the card slot 4. The pair of protective side wings 8 on both sides of the aerogel felt card block 5 extend out, and the outer arc wall surface of the card slot 4 is covered and protected by the pair of protective side wings 8;

[0024] In order to install the two ends of the aerogel felt block 5 more snugly, a pair of cross-linking rings 9 are respectively provided at both ends of the aerogel felt block 5. The pair of cross-linking rings 9 are respectively bonded to the head ends of the aerogel felt block 5 by gluing, and the pair of cross-linking rings 9 are bonded to the outer wall of the inner tube 1, thereby fixing the two ends of the aerogel felt block 5 more stably and fixing the aerogel felt block 5 in the card slot 4.

[0025] As a preferred solution, further, a pair of annular flange plates 10 are extended outward from both side ends of the outer tube 2, and the heat-insulated oil pipe can be connected through the pair of flange plates 10.

[0026] As a preferred solution, further, a pair of cross-linked ring sleeves are a pair of annular structure plates, the outer peripheral wall of a pair of cross-linked ring sleeves 9 matches the outer peripheral diameter of the aerogel felt block 5 to maintain structural consistency, and multiple aerogel felt blocks 5 are arranged in a ring array and the two ends of the cross-linked ring sleeves are connected to each other.

[0027] As a preferred solution, further, the plurality of connecting pieces 3 are a plurality of rectangular structured plates, and the two ends of the connecting pieces 3 are respectively welded to the inner tube 1 and the outer tube 2 .

[0028] As a preferred solution, further, the pair of protective side wings 8 transition smoothly with the outer curved surface of the aerogel felt block 5 .

[0029] As a preferred solution, further, the plurality of positioning rods 7 are a plurality of threaded rods, and the plurality of positioning holes 6 are provided with socket grooves that match the head ends of the positioning rods 7 to play a limiting role.

[0030] From the above, it can be seen that the aerogel felt insulation structure of the heat-insulating oil pipe divides the aerogel felt insulation structure into multiple sectors, and utilizes the matching of the aerogel felt block 5 and the inner tube 1 slot 4 to realize the limiting effect of the aerogel felt block 5. The aerogel felt blocks 5 of multiple sectors are connected with each other to form an aerogel felt insulation structure. On the one hand, the aerogel felt is fixed by the limiting cooperation of the slot 4 and the aerogel felt block 5 with the positioning rod 7 and the cross-linking ring sleeve 9, rather than adopting a large-area bonding method, which is convenient for disassembly and maintenance, and the operation is convenient and simple.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating oil pipe aerogel felt insulation structure, comprising an inner pipe (1) and an outer pipe (2), wherein the inner pipe (1) is assembled in the outer pipe (2) and is coaxial with the outer pipe (2), and the two ends of the inner pipe (1) and the outer pipe (2) are connected to each other through a plurality of pairs of connecting pieces (3) arranged in a ring array, characterized in that: The inner tube (1) is provided with a plurality of slots (4) in a ring array corresponding to the plurality of connecting pieces (3), and a plurality of aerogel felt blocks (5) are installed in the plurality of slots (4); The plurality of aerogel felt blocks (5) are a plurality of arc-missing annular plates, a plurality of positioning holes (6) are arranged axially on the aerogel felt blocks (5), a plurality of clamping holes are provided on the clamping slot (4) corresponding to the plurality of positioning holes (6), and a plurality of positioning rods (7) are installed in the plurality of positioning holes (6) and are threadedly connected to the plurality of clamping holes; A pair of protective side wings (8) extend from both sides of the aerogel felt card block (5), and the pair of protective side wings (8) are attached to the outer arc wall surface of the card slot (4); A pair of transverse connecting rings (9) are respectively provided at both ends of the aerogel felt block (5), and the pair of transverse connecting rings (9) are respectively bonded to the head ends of the aerogel felt block (5) by gluing.

2. The thermal insulation structure of the oil pipe aerogel felt according to claim 1, characterized in that: A pair of annular flange plates (10) extend outward from both side ends of the outer tube (2).

3. The thermal insulation structure of the oil pipe aerogel felt according to claim 2, characterized in that: The pair of transverse ring sleeves are a pair of plates with annular structures, and the outer peripheral wall surfaces of the pair of transverse ring sleeves (9) match the outer peripheral diameter of the aerogel felt block (5).

4. The thermal insulation structure of the oil pipe aerogel felt according to claim 3 is characterized in that: The connecting pieces (3) are rectangular plates, and the two ends of the connecting pieces (3) are respectively welded to the inner tube (1) and the outer tube (2).

5. The thermal insulation structure of the oil pipe aerogel felt according to claim 4, characterized in that: The pair of protective side wings (8) transition smoothly with the outer arc surface of the aerogel felt block (5).

6. The thermal insulation structure of the oil pipe aerogel felt according to claim 5, characterized in that: Several of the positioning rods (7) are threaded rods, and several of the positioning holes (6) are provided with socket grooves that match the head ends of the positioning rods (7).

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