Coated type heat preservation structure of heat preservation and insulation pipe

Abstract

The utility model discloses a heat preservation and insulation pipe wrapping type heat preservation structure which comprises an inner pipe, an outer pipe and a heat preservation layer, the outer pipe is coaxially arranged outside the inner pipe, the heat preservation layer is arranged between the inner pipe and the outer pipe, connecting pieces are arranged at the ends of the inner pipe and the outer pipe, and the connecting pieces are integrally connected with the inner pipe and the outer pipe; according to the wrapping type heat preservation structure of the heat preservation and insulation pipe, the connecting disc is arranged at the head end of the inner pipe and the head end of the outer pipe, the heat preservation and insulation pipe is in butt joint through the opposite pull rod pieces, connection convenience is improved, meanwhile, the middle heat insulation ring is arranged at the position of the connecting disc, and the middle heat insulation ring is used for conducting isolation and heat preservation on the connecting position. Heat preservation is conducted on fluid passing through the inner pipe, heat loss from the connecting position is avoided, meanwhile, a seam of the inner pipe is sealed through the middle heat insulation ring, and fluid leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-insulating pipes, in particular to a heat-insulating pipe sheathing heat-insulating structure. Background Art

[0002] In modern steam oil production, insulated oil pipes are common oil production equipment. In the application process of insulated oil pipes, the insulated oil pipes are mainly composed of outer pipes, inner pipes, thermal insulation layers and protective belts. The inner pipes and outer pipes are both rigid materials and mainly play a supporting role, while the thermal insulation layer plays a role of thermal insulation.

[0003] At present, the thermal insulation material of the thermal insulation layer is mainly used to wrap the inner tube by filling or wrapping. However, in the application of this wrapping structure, the interval between the outer tube and the inner tube is mostly fixed, but the connection position of the pipeline is still mainly flanged. As a result, the thermal insulation layer cannot cover the contact position, which makes the contact position prone to heat loss. In view of this, in-depth research on the above problem led to the creation of this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides a heat-insulating pipe wrapping type heat-insulating 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: a heat-insulating pipe wrapped insulation structure, comprising an inner pipe, an outer pipe and an insulation layer, wherein the outer pipe is coaxially arranged outside the inner pipe, an insulation layer is provided between the inner pipe and the outer pipe, and connectors are provided at the ends of the inner pipe and the outer pipe, and the connectors are integrally connected to the inner pipe and the outer pipe;

[0006] The connecting piece includes a connecting plate, the outer tube coaxially extends outward from the connecting plate, the connecting plate is provided with a plurality of tension holes arranged in a circular array, a plurality of tension rods are installed in the plurality of tension holes, and the head end of the inner tube is connected to the connecting plate;

[0007] The connecting plate is provided with an annular groove, and an intermediate heat insulating ring is installed in the annular groove;

[0008] The middle thermal insulation ring is a circular ring structure, and a pair of limit platforms are symmetrically arranged on both sides of the middle thermal insulation ring. The head end of the inner tube is arranged in a ring array with several connecting leaves connected to the connecting disk, and several limit plugs are arranged in a ring array on the limit platform, and several of the limit plugs are inserted into the gaps between the several connecting leaves.

[0009] Preferably, the side surface of the connecting plate is flush with the end surface of the inner tube, and the thermal insulation layer extends to one side of the plurality of connecting leaves.

[0010] Preferably, the diameter of the middle of the middle thermal insulation ring decreases toward one side of the limiting platform, and the limiting platform is a plate with a truncated cone structure and is integrally formed with the middle thermal insulation ring.

[0011] Preferably, the annular groove is divided into two sections, which are matched with the middle thermal insulation ring and the limit platform on one side respectively.

[0012] Preferably, the tension rod is composed of a tension rod passing through the tension hole and a pair of tension nuts connected to both ends of the tension rod by tension threads.

[0013] Preferably, a pair of limiting washers are symmetrically arranged between the pair of tension nuts.

[0014] The utility model provides a heat-insulating and heat-insulating pipe-wrapped insulation structure. The structure has the following beneficial effects: A connecting plate is provided at the head end of the inner pipe and the outer pipe, and the heat-insulating and heat-insulating pipe is butt-jointed by a tie rod, thereby improving the convenience of connection. An intermediate heat-insulating ring is provided at the connecting plate position, and the intermediate heat-insulating ring is used to isolate and insulate the connection position, thereby insulating the fluid passing through the inner pipe and preventing heat loss from the connection position. Furthermore, the intermediate heat-insulating ring seals the joint of the inner pipe and prevents fluid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a thermal insulation pipe wrapped insulation structure described in the present invention.

[0016] Figure 2 This is a schematic diagram of the blasting structure of the thermal insulation pipe wrapped insulation structure described in the present invention.

[0017] Figure 3 This is a schematic cross-sectional view of a heat-insulating pipe wrapped heat-insulating structure according to the present invention.

[0018] In the figure: 1. Inner tube; 2. Outer tube; 3. Insulation layer; 4. Connecting piece; 41. Connecting plate; 42. Pull hole; 43. Pull rod; 5. Annular groove; 6. Intermediate thermal insulation ring; 7. Limiting platform; 8. Connecting leaf; 9. Limiting plug; 431. Pull rod; 432. Pull nut; 433. Limiting gasket. 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 1-3 The utility model provides an implementation scheme: in the application process of modern thermal insulation pipes, the insulation layer 3 is mainly set between the inner pipe 1 and the outer pipe 2. However, when the pipes are docked, due to the presence of pipe flanges and joints, there is no insulation layer at the connection part of the pipes, so it cannot effectively play a role in thermal insulation.

[0021] According to the instruction manual Figure 1-3 It can be seen that the present application discloses a thermal insulation pipe wrapped insulation structure, comprising an inner pipe 1, an outer pipe 2 and an insulation layer 3, the outer pipe 2 is coaxially arranged on the outside of the inner pipe 1, and the insulation layer 3 is provided between the inner pipe 1 and the outer pipe 2. Through the coaxial arrangement of the inner pipe 1 and the outer pipe 2, the insulation layer 3 is installed in the annulus between the inner pipe 1 and the outer pipe 2. The inner pipe 1 is used for material circulation, and the outer pipe 2 is used to wrap and protect the inner pipe 1 and the insulation layer 3. Connectors 4 are provided at the ends of the inner pipe 1 and the outer pipe 2. The connector 4 is integrally connected to the inner pipe 1 and the outer pipe 2, and the connector 4 serves as a docking installation basis for the thermal insulation pipe.

[0022] According to the instruction manual Figure 1-3 It can be seen that the above-mentioned connecting member 4 includes a connecting plate 41. The outer tube 2 extends outwardly coaxially to form the connecting plate 41. The connecting plate 41 is integrally formed with the outer tube 2 and has a diameter larger than that of the outer tube 2. In addition, a plurality of tension holes 42 are arranged in a ring array on the connecting plate 41. When connecting with other thermal insulation tubes, the outer tube 2 is butt-connected by passing the tension rod 43 through the tension holes 42. The head end of the inner tube 1 is connected to the connecting plate 41 to connect the inner tube 1 and the outer tube 2 as a whole.

[0023] In order to provide thermal insulation for the docking position, an annular groove 5 is provided on the connecting plate 41. An intermediate thermal insulation ring 6 is installed in the annular groove 5. The intermediate thermal insulation ring 6 is installed in the annular groove 5 at the docking position so that the intermediate thermal insulation ring 6 and the inner tube 1 are coaxially arranged. After the docking is completed, the intermediate thermal insulation ring 6 and the thermal insulation layer seal and insulate the docking position of the inner tube 1.

[0024] According to the instruction manual Figure 1-3It can be seen that the above-mentioned middle thermal insulation ring 6 is a circular ring structure, and a pair of limit platforms 7 are symmetrically arranged on both sides of the middle thermal insulation ring 6. The diameter of the middle thermal insulation ring 6 matches the annular groove 5, and a pair of limit platforms 7 extend from both sides of the middle thermal insulation ring 6 to further cooperate with the annular groove 5, so that the middle thermal insulation ring 6 covers the entire connection position, and a number of connecting leaves 8 are arranged in a ring array at the head end of the inner tube 1 and connected to the connecting plate 41, and a number of limit plugs 9 are arranged in a ring array on the limit platform 7. A number of limit plugs 9 are inserted between the number of connecting leaves 8 in gaps, and a number of limit plugs 9 are inserted between the number of connecting leaves 8, so that a number of limit plugs 9 are connected to one side of the thermal insulation layer, thereby playing a role in limiting the middle thermal insulation ring 6 and connecting the thermal insulation layer to form a complete thermal insulation body, completely isolating the inner tube 1 and the outer tube 2 environment, and keeping the fluid in the inner tube 1 warm.

[0025] As a preferred solution, further, the side surface of the connecting plate 41 is flush with the end face of the inner tube 1, and the insulation layer 3 extends to one side of several connecting leaves 8, so as to facilitate the docking of different insulated oil pipes. When docking, the inner tube 1 is connected with the middle insulation ring 6 through a sleeve or a socket structure.

[0026] As a preferred solution, further, the diameter of the middle of the middle thermal insulation ring 6 is reduced to one side of the limit platform 7. The limit platform 7 is a plate with a truncated cone structure and is integrally formed with the middle thermal insulation ring 6, which enhances the integrity and facilitates production.

[0027] As a preferred solution, further, the annular groove 5 is divided into two sections, which are matched with the middle thermal insulation ring 6 and the one side limit platform 7 respectively, to play the role of limiting sealing.

[0028] As a preferred solution, further, the tension rod 43 is composed of a tension rod 431 passing through the tension hole 42 and a pair of tension nuts 432 connected to the two ends of the tension rod 431 by tension threads, and the two sides of the connecting plate 41 are tensioned and connected through the tension nuts 432.

[0029] As a preferred solution, further, a pair of limiting washers 433 are symmetrically arranged between the pair of tension nuts 432 to increase the contact area and reduce pressure.

[0030] From the above, it can be seen that the thermal insulation pipe wrapped insulation structure is provided with a connecting plate 41 at the head end of the inner pipe 1 and the outer pipe 2, and the thermal insulation pipe is connected by the pull rod 43 to improve the convenience of connection. At the same time, an intermediate insulation ring 6 is provided at the position of the connecting plate 41. The intermediate insulation ring 6 is used to isolate and insulate the connection position, and to insulate the fluid passing through the inner pipe 1 to avoid heat loss from the connection position, and then the joint of the inner pipe 1 is sealed by the intermediate insulation ring 6 to avoid fluid leakage.

[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 pipe wrapped insulation structure, comprising an inner pipe (1), an outer pipe (2) and an insulation layer (3), wherein the outer pipe (2) is coaxially arranged outside the inner pipe (1), and an insulation layer (3) is provided between the inner pipe (1) and the outer pipe (2), characterized in that: Connectors (4) are provided at the ends of the inner tube (1) and the outer tube (2), and the connectors (4) are integrally connected to the inner tube (1) and the outer tube (2); The connecting member (4) includes a connecting disk (41), the outer tube (2) coaxially extends outward from the connecting disk (41), a plurality of pull holes (42) are arranged in a ring array on the connecting disk (41), a plurality of pull rods (43) are installed in the plurality of pull holes (42), and the head end of the inner tube (1) is connected to the connecting disk (41); The connecting disk (41) is provided with an annular groove (5), and an intermediate heat insulating ring (6) is installed in the annular groove (5); The intermediate heat insulating ring (6) is a circular ring structure. A pair of limiting platforms (7) are symmetrically arranged on both sides of the intermediate heat insulating ring (6). The head end of the inner tube (1) is provided with a plurality of connecting leaves (8) arranged in a ring array and connected to the connecting plate (41). A plurality of limiting plugs (9) are arranged in a ring array on the limiting platform (7). The plurality of limiting plugs (9) are inserted into the gaps between the plurality of connecting leaves (8).

2. The heat-insulating pipe wrapped insulation structure according to claim 1, characterized in that: The side surface of the connecting plate (41) is flush with the end surface of the inner tube (1), and the thermal insulation layer (3) extends to one side of the plurality of connecting leaves (8).

3. The heat-insulating pipe wrapped insulation structure according to claim 2, characterized in that: The diameter of the middle of the middle heat insulating ring (6) decreases toward one side of the limiting platform (7), and the limiting platform (7) is a plate with a truncated cone structure and is integrally formed with the middle heat insulating ring (6).

4. The heat-insulating pipe wrapped insulation structure according to claim 3, characterized in that: The annular groove (5) is divided into two sections, which are matched with the middle heat insulation ring (6) and the one side limit platform (7) respectively.

5. The heat-insulating pipe wrapped insulation structure according to claim 4, characterized in that: The tension rod (43) is composed of a tension rod (431) passing through the tension hole (42) and a pair of tension nuts (432) connected to both ends of the tension rod (431) by tension threads.

6. The heat-insulating pipe wrapped insulation structure according to claim 5, characterized in that: A pair of limiting washers (433) are symmetrically arranged between the pair of tension nuts (432).

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