Novel composite heat preservation pipeline

Abstract

The utility model discloses a novel composite thermal insulation pipeline which comprises a pipe body, the pipe body is composed of a protective layer and a liner pipe, the liner pipe comprises an inner pipe, a composite thermal insulation layer is arranged on the outer surface of the inner pipe, an outer layer is arranged on the outer surface of the composite thermal insulation layer, and a damping mechanism is arranged between the pipe body and the liner pipe and used for damping the liner pipe. The top of the liner pipe is communicated with a branch pipe, a top block is fixedly mounted at the top of the branch pipe, a piston is slidably mounted in the branch pipe, a second spring is fixedly mounted between the upper surface of the piston and the lower surface of the top block, and a pressure relief hole located above the piston is formed in the surface of the branch pipe. The heat preservation pipeline can be effectively buffered and damped, the situation that a heat preservation material cracks or falls off due to fatigue stress caused by continuous vibration is avoided, pressure in the heat preservation pipeline can be released in time through arrangement of a branch pipe, an ejector block, a piston, a second spring, a pressure relief hole and the like, the phenomenon that a lining pipe is damaged by large pressure, and the phenomenon of cracking or pipe explosion occurs is avoided, and the service life of the heat preservation pipeline is prolonged. And the safety is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of composite insulation pipe technology, and in particular relates to a novel composite insulation pipe. Background Technology

[0002] Thermal insulation pipe is short for heat-insulated pipeline. It is used for the transportation of liquids, gases and other media, and is widely used in thermal insulation projects for pipelines in petroleum, chemical, aerospace, hot spring, military, district heating, central air conditioning, municipal and other industries.

[0003] In the prior art, Chinese utility model patent CN218780952U discloses a pipe insulation structure, relating to the field of insulation structure technology. It includes multiple insulation layers, with two layers being a first insulation layer and a second insulation layer. The first insulation layer is an aerogel insulation layer, and the second insulation layer is a ceramic composite insulation material layer or an aluminum silicate insulation layer. The first insulation layer is fitted over the second insulation layer, which is then fitted over the pipe. This utility model's pipe insulation structure can reduce pipe insulation costs while still achieving the desired insulation effect.

[0004] In the aforementioned existing technologies, multi-layer insulation can reduce pipe insulation costs while still achieving the desired insulation effect, but there are still some shortcomings in overall use:

[0005] First, when hot water and other heat energy media are transported in the heat pipe, the high temperature, high pressure and high flow rate of the medium will cause the insulation pipe to vibrate. However, the vibration cannot be damped in time. The continuous vibration will cause the connection between the insulation layer and the pipe to loosen, accelerate the cracking or falling off of the insulation material due to fatigue stress, and reduce the insulation performance.

[0006] Secondly, if an insulated pipe is accidentally dropped during installation without a protective mechanism, the impact may cause the insulation materials, such as rock wool and glass wool, to crack or detach from the pipe surface, reducing its insulation performance and accelerating heat loss. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this utility model provides a novel composite insulation pipe. This utility model solves the technical problem that existing insulation pipes cannot handle the high-speed flow of high-temperature media within the pipe, which causes vibration and, with continuous vibration, leads to loosening of the connection between the insulation layer and the pipe, resulting in easy damage to the pipe. Furthermore, this utility model improves the protective effect of the insulation pipe.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A novel composite thermal insulation pipe, comprising a pipe body, the pipe body being composed of a protective layer and a liner, the liner comprising an inner pipe, the outer surface of the inner pipe being provided with a composite thermal insulation layer, the outer surface of the composite thermal insulation layer being provided with an outer layer, a shock-absorbing mechanism being provided between the pipe body and the liner for shock absorption of the liner, a branch pipe being connected to one side of the outer circular surface of the liner, a top block being fixedly installed at one end of the outer side of the branch pipe, a piston being slidably installed inside the branch pipe, a second spring being fixedly installed between the upper surface of the branch pipe and the lower surface of the top block, and a pressure relief hole being opened on the surface of the branch pipe above the piston.

[0009] By incorporating branch pipes, top blocks, pistons, second springs, and pressure relief holes, the pressure inside the insulated pipes can be released in a timely manner, preventing excessive pressure from damaging the liner, causing cracks or pipe bursts, and greatly improving safety.

[0010] In the aforementioned novel composite thermal insulation pipe, the shock absorption mechanism includes a first damping plate fixedly installed on the inner surface of the protective layer, and a second damping plate fixedly installed on the outer surface of the outer layer, with the first damping plate and the second damping plate being elastically installed together.

[0011] By elastically installing the first damping plate and the second damping plate, vibration can be reduced when the insulated pipe vibrates, avoiding the loosening of the connection between the insulation layer and the pipe caused by continuous vibration, which would accelerate the cracking or falling off of the insulation material due to fatigue stress, and greatly improve the insulation effect.

[0012] In the aforementioned novel composite thermal insulation pipe, top columns are fixedly installed on the opposite surfaces of the first damping plate and the second damping plate, sleeves are slidably installed on the outer sides of the opposite ends between the two top columns, and a first spring is fixedly installed between the opposite ends of the two top columns.

[0013] By installing top columns and sleeves, the stability of the insulation pipe during vibration damping can be guaranteed, the pipe strength can be improved, and the vibration damping effect can be greatly enhanced.

[0014] In the aforementioned novel composite thermal insulation pipe, multiple sleeve rods are fixedly installed on the inner surface of the protective layer, and telescopic rods are slidably installed inside the sleeve rods, with the telescopic rods fixed to the liner pipe.

[0015] By incorporating sleeves and telescopic rods, the connection strength between insulation pipes is greatly improved, further enhancing the performance.

[0016] In the aforementioned novel composite thermal insulation pipe, multiple sleeve rods and multiple sleeves are evenly spaced in the circumferential direction.

[0017] By interlacing the sleeve rods and telescopic rods with the sleeve, the strength between the insulation pipes can be further improved, greatly enhancing the performance.

[0018] In the aforementioned novel composite thermal insulation pipe, a joint is provided at one end of the pipe body, and mounting grooves are provided on both sides of the joint. The interior of the mounting grooves is used to insert a liner pipe.

[0019] With the addition of joint mounting slots and other features, insulated pipes can be quickly connected to the structure, greatly improving installation speed and thus increasing work efficiency.

[0020] In the aforementioned novel composite thermal insulation pipe, the surface of the joint is provided with multiple limiting holes that communicate with the installation groove. The internal threads of the limiting holes are fitted with limiting screws, and a rubber block is provided between the bottom end of the limiting screw and the liner.

[0021] By using limit screws and rubber blocks, the insulation pipe can be quickly fixed while ensuring shock absorption, greatly improving the performance.

[0022] In the aforementioned novel composite thermal insulation pipe, the outer surface of the joint is provided with multiple air bladders, and an air valve is provided on one side of each air bladder.

[0023] By incorporating airbags, it is possible to effectively prevent pipes from accidentally falling during construction and hoisting, which could cause damage and affect the normal use of the insulation pipes.

[0024] In summary, compared with the prior art, the novel composite thermal insulation pipe provided by this utility model has the following beneficial effects:

[0025] 1. This utility model, through the setting of a first damping plate, a second damping plate, a top column, a sleeve and a first spring, can effectively buffer and reduce the vibration caused by high pressure and high flow rate in the insulated pipe, avoid continuous vibration from causing the connection between the insulation layer and the pipe to loosen, and accelerate the cracking or falling off of the insulation material due to fatigue stress, thus greatly improving the insulation effect.

[0026] 2. This utility model, through the setting of branch pipe, top block, piston, second spring and pressure relief hole, can release the pressure in the heat preservation pipe in time, avoid the liner pipe from being damaged by excessive pressure, and prevent cracking or pipe bursting, thus greatly improving safety.

[0027] 3. This utility model, through the design of joints, mounting grooves, rubber blocks, and airbags, can fix the insulation pipe, ensure shock absorption, and protect the insulation pipe from accidental falling during construction and hoisting, thus greatly improving the performance. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0029] Figure 2This is a front view structural diagram of the present invention;

[0030] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0031] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0032] Figure 5 for Figure 2 Schematic diagram of cross section at CC;

[0033] Figure 6 for Figure 3 Enlarged structural diagram at point D in the diagram;

[0034] Figure 7 for Figure 4 Enlarged structural diagram at point E in the diagram;

[0035] Figure 8 for Figure 3 Enlarged structural diagram at point F in the diagram;

[0036] Figure 9 for Figure 5 A magnified structural diagram of point G in the diagram.

[0037] In the diagram: Pipe body 10; Inner pipe 11; Composite insulation layer 12; Outer layer 13; Protective layer 14; First damping plate 15; Second damping plate 16; Top column 17; Sleeve 18; First spring 19; Sleeve rod 20; Telescopic rod 21; Branch pipe 22; Top block 23; Piston 24; Second spring 25; Pressure relief hole 26; Connector 27; Mounting groove 28; Limiting hole 29; Limiting screw 30; Rubber block 31; Airbag 32; Air valve 33. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0039] Example 1:

[0040] refer to Figure 1 , Figure 2 , Figure 3 and Figure 6A novel composite insulated pipe includes a pipe body 10, which is composed of a protective layer 14 and a liner. The liner includes an inner pipe 11, and a composite insulation layer 12 is provided on the outer surface of the inner pipe 11. An outer layer 13 is provided on the outer surface of the composite insulation layer 12 for waterproofing, rust prevention, and improving corrosion resistance. The composite insulation layer 12 is made of a variety of insulation materials, while the outer layer 13 is made of waterproof and corrosion-resistant materials. This structural arrangement is conventional existing technology, and this solution will not be elaborated on further.

[0041] Further reference Figure 1 , Figure 2 , Figure 4 and Figure 7 Multiple arc-shaped first damping plates 15 are fixedly installed on the inner surface of the protective layer 14, and multiple arc-shaped second damping plates 16 are fixedly installed on the outer surface of the outer layer 13. A top column 17 is fixedly installed on the opposite surface of the second damping plate 16 and the first damping plate 15. A sleeve 18 is slidably installed on the outer surfaces of the second damping plate 16 and the first damping plate 15, and a first spring 19 is fixedly installed between the opposite ends of the second damping plate 16 and the first damping plate 15. When the temperature, pressure, and flow rate of the medium inside the pipe are high, the insulation pipe will vibrate. At this time, the liner slides inside the sleeve 18 through the second damping plate 16 and the top column 17 under the action of the first spring 19. The first spring 19 absorbs the vibration and performs buffering and shock reduction, avoiding the continuous vibration from causing the connection between the insulation layer and the pipe to loosen, and accelerating the cracking or falling off of the insulation material due to fatigue stress. This greatly improves the insulation effect. It should be noted that the first spring 19 is made of a spring material that can absorb vibration and only absorbs and buffers the vibration, without aggravating the vibration. This is existing technology and can be selected according to actual needs. This solution will not impose too many restrictions or explanations.

[0042] Further reference Figure 2 , Figure 3 and Figure 8The top of the liner is connected to a branch pipe 22, and a top block 23 is fixedly installed on the top of the branch pipe 22. A piston 24 is slidably installed inside the branch pipe 22, and a second spring 25 is fixedly installed between the piston 24 and the top block 23. Multiple pressure relief holes 26 are opened on the surface of the branch pipe 22, and the pressure relief holes 26 are located above the piston 24. When hot water flows inside the liner, the high temperature causes the hot water to continuously evaporate. As the hot water continuously evaporates, more and more steam accumulates in the pipe, causing the internal pressure of the pipe to gradually increase. When the air pressure reaches a certain level, high-pressure gas will enter the branch pipe 22. As the air pressure gradually increases, the high-pressure gas will push the piston 24 upward. When the piston 24 slides above the pressure relief hole 26, the high-pressure gas will be discharged from the pressure relief hole 26, reducing the air pressure in the liner. When the air pressure decreases, the pressure relief hole 26 will push the piston 24 downward until it is positioned below the pressure relief hole 26, stopping the pressure relief. This allows for the timely discharge of large air pressure, preventing damage to the liner from excessive pressure, such as cracking or bursting, and greatly improving safety.

[0043] Example 2:

[0044] A novel composite thermal insulation pipe, further illustrated in Example 1, is described below (see reference). Figure 4 Multiple sleeve rods 20 are fixedly installed on the inner surface of the protective layer 14. Telescopic rods 21 are slidably installed inside the sleeve rods 20. The telescopic rods 21 are fixed to the outer liner 13. The sleeve rods 20 and telescopic rods 21 are staggered with the sleeve 18. When damping is performed, the telescopic rods 21 slide inside the sleeve rods 20. At the same time, the telescopic rods 21 and sleeve rods 20 are staggered with the sleeve 18. The staggered support can flexibly adapt to the vibration of the pipeline, allowing the pipeline to move in a predetermined direction within a preset range, avoiding deformation and cracking caused by rigid connection, greatly improving the strength between the liner and the protective layer 14, and greatly improving the performance.

[0045] Example 3:

[0046] A novel composite thermal insulation pipe is further illustrated in the embodiments described in Examples 1 and 2, with reference to... Figure 1 , Figure 2 , Figure 5 and Figure 9One end of the pipe body 10 is provided with a connector 27 for connecting two pipe bodies 10. This solution only shows a schematic diagram of the connector 27 at one end of the pipe body 10. The other end is the same as the connector 27. The connector 27 has mounting grooves 28 on both sides. The liner is sealed and inserted into the mounting groove 28. The surface of the connector 27 has multiple limiting holes 29 that communicate with the mounting groove 28. The internal threads of the limiting holes 29 are fitted with limiting screws 30. A rubber block 31 is provided between the limiting screw 30 and the liner. In use, the liner is inserted into the mounting groove 28, and the protective layer 14 is sealed and abutted against the two sides of the connector 27. The rubber block 31 is placed in the limiting hole 29, and the liner is fixed and limited by the limiting screw 30 and the rubber block 31 to improve the connection strength. At the same time, the rubber block 31 can dampen the liner, which greatly improves the performance.

[0047] Furthermore, multiple airbags 32 are fixedly installed on the outside of the connector 27. An air valve 33 is provided on one side of the airbag 32. In use, the airbag 32 is inflated by the air valve 33, which increases the air pressure inside the airbag 32 and causes it to expand. When the pipe body 10 is accidentally dropped, since the expanded airbag 32 is much larger than the diameter of the pipe body 10, the airbags 32 at both ends of the pipe body 10 will contact the ground first. The airbags 32 will be squeezed and deformed, absorbing the impact energy and achieving a shock absorption effect. This prevents the pipe body 10 from directly hitting the ground and being damaged, and greatly improves the protection effect of the pipeline.

[0048] Working principle: During operation, the liner is inserted into the mounting groove 28, and the protective layer 14 and the two sides of the connector 27 are sealed and abutted. A rubber block 31 is placed in the limiting hole 29, and the liner is fixed and limited by the limiting screw 30 and the rubber block 31. When the pipe body 10 is accidentally dropped, the airbags 32 at both ends of the pipe body 10 will provide anti-collision and shock absorption. When the temperature, pressure and flow rate of the medium in the pipeline are high, the insulation pipe will vibrate. At this time, the liner slides inside the sleeve 18 through the second damping plate 16 and the top column 17 under the action of the first spring 19 to buffer and absorb shock. When the pressure inside the liner is high, the pressure will push the piston 24 upward. When the piston 24 slides above the pressure relief hole 26, the pressure will be discharged from the pressure relief hole 26, reducing the pressure inside the liner. When the pressure decreases, the pressure relief hole 26 pushes the piston 24 downward to the bottom of the pressure relief hole 26, stopping the pressure relief.

[0049] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0050] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0051] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A new type of composite heat-insulated pipe, comprising a pipe body (10) composed of a protective layer (14) and a lining pipe, the lining pipe comprising an inner pipe (11), the outer surface of the inner pipe (11) being provided with a composite heat-insulating layer (12), the outer surface of the composite heat-insulating layer (12) being provided with an outer layer (13), characterized in that, The pipe body (10) is provided with a damping mechanism between the pipe body (10) and the liner pipe, which is used for damping the liner pipe, one side of the outer circular surface of the liner pipe is communicated with a branch pipe (22), an outer end of the branch pipe (22) is fixedly installed with a top block (23), an inner end of the branch pipe (22) is slidably installed with a piston (24), a second spring (25) is fixedly installed between the upper surface of the piston (24) and the lower surface of the top block (23), and a pressure relief hole (26) is formed in the surface of the branch pipe (22) and located above the piston (24).

2. A novel composite heat-insulated pipe according to claim 1, characterized in that, The damping mechanism comprises a first damping plate (15) fixedly installed on the inner surface of the protective layer (14), and a second damping plate (16) fixedly installed on the outer surface of the outer layer (13).

3. A novel composite heat-insulated pipe according to claim 2, characterized in that, Opposite surfaces of the first damping plate (15) and the second damping plate (16) are fixedly installed with top columns (17), sleeve pipes (18) are slidably installed on the opposite ends of the two top columns (17), and a first spring (19) is fixedly installed between the opposite ends of the two top columns (17).

4. A novel composite heat-insulated pipe according to claim 2, characterized in that, The inner surface of the protective layer (14) is fixedly installed with a plurality of sleeve rods (20), the inner end of the sleeve rod (20) is slidably installed with a telescopic rod (21), and the telescopic rod (21) is fixedly installed with the liner pipe.

5. A novel composite heat-insulated pipe according to claim 4, characterized in that, The plurality of sleeve rods (20) and the plurality of sleeve pipes (18) are uniformly and circumferentially spaced.

6. A novel composite heat-insulated pipe according to claim 1, characterized in that, One end of the pipe body (10) is provided with a connector (27), both sides of the connector (27) are provided with installation grooves (28), and the inner end of the installation groove (28) is used for inserting the liner pipe.

7. A novel composite heat-insulated pipe according to claim 6, characterized in that, A plurality of limiting holes (29) are formed in the surface of the connector (27) and communicated with the installation grooves (28), the inner end of the limiting hole (29) is screwedly installed with a limiting screw (30), and the bottom end of the limiting screw (30) is provided with a rubber block (31) between the limiting screw (30) and the liner pipe.

8. A novel composite heat-insulated pipe according to claim 7, characterized in that, The outer surface of the connector (27) is provided with a plurality of air bags (32), and one side of the air bag (32) is provided with an air valve (33).

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