Efficient heat-insulating exhaust structure

Abstract

The utility model relates to the technical field of heat insulation pipelines, in particular to an efficient heat insulation exhaust structure which comprises an outer pipe, an interlayer and an inner pipe which are sequentially arranged from outside to inside, and the interlayer comprises a plurality of partition plates fixedly connected between the outer pipe and the inner pipe and a plurality of fillers filled between the outer pipe and the inner pipe. The containing cavity between the outer pipe and the inner pipe is divided into a plurality of independent cavities used for containing fillers by the adjacent partition plates, the inner side of the outer pipe is further fixedly connected with a plurality of connecting rods which penetrate through the inner pipe and stretch into the inner side of the inner pipe, and a plurality of connecting rods are correspondingly and fixedly connected into each independent cavity. Materials filled in an inner interlayer are accumulated due to long-term vibration, so that cavities are formed in the interlayer of the exhaust pipe, and the sound insulation and heat preservation effects are influenced.

Description

Technical Field

[0001] The present application relates to the technical field of heat-insulated pipes, and specifically discloses a highly efficient heat-insulated exhaust structure. Background Art

[0002] In the prior art, the exhaust device used in large gas turbines usually consists of a fan and an exhaust pipe. The fan further guides the smoke of the large gas turbine and discharges it through the exhaust pipe. Since the smoke contains a large amount of heat energy and has a fast flow rate, there is a huge noise. The existing exhaust pipes all adopt a three-layer tube body design, which includes an outer tube, an interlayer and an inner tube from the outside to the inside, wherein the interlayer is composed of a filling material: a cotton layer, thereby achieving sound insulation, noise reduction and heat preservation effects.

[0003] However, during long-term use, the exhaust pipe is prone to vibration due to the fast flow rate of smoke. The long-term vibration of the exhaust pipe will cause the filling material, that is, the cotton layer to accumulate, causing holes in the interlayer of the exhaust pipe, affecting the sound insulation effect.

[0004] Therefore, in view of this, the inventor provides a highly efficient heat-insulating exhaust structure to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to solve the problem that in the long-term use of the traditional exhaust pipe, long-term vibration will cause the material filled in the internal interlayer to accumulate, resulting in holes in the exhaust pipe interlayer and affecting the sound insulation and heat preservation effect.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides an efficient heat-insulating exhaust structure, including an outer tube, an interlayer and an inner tube arranged in sequence from the outside to the inside, the interlayer includes a plurality of partitions fixed between the outer tube and the inner tube and a plurality of fillers respectively filled between the outer tube and the inner tube, the adjacent partitions divide the accommodating chamber between the outer tube and the inner tube into a plurality of independent chambers for accommodating the fillers, the inner side of the outer tube is also fixed with a plurality of connecting rods passing through the inner tube and extending into the inner side of the inner tube, and each independent chamber is correspondingly fixed with a plurality of connecting rods

[0007] Furthermore, the partitions are fixedly connected between the outer tube and the inner tube in a horizontally and vertically staggered manner, and form transverse partitions and longitudinal partitions.

[0008] Furthermore, gaps are left between adjacent transverse partitions and longitudinal partitions, and connecting grooves are opened on the inner sides of the transverse partitions and the longitudinal partitions.

[0009] Furthermore, the inner tube is composed of a plurality of arc-shaped plates connected to each other, and each of the arc-shaped plates is respectively provided with a through hole for the connecting rod to pass through.

[0010] Furthermore, the size of the through hole is larger than that of the connecting rod, and the connecting rod extends into the inner side of the arc-shaped plate and is fixedly connected with a collar for closing the through hole.

[0011] Furthermore, an isolation ring belt for separating adjacent arc-shaped plates is fixedly connected to the inner side of the partition.

[0012] Furthermore, a damping layer is fixedly connected to the inner wall of the outer tube.

[0013] Furthermore, the filler includes at least two different materials.

[0014] The principle and effect of this scheme are:

[0015] 1. Compared with the prior art, the utility model installs a plurality of partitions between the outer tube and the inner tube, and the adjacent partitions divide the accommodating chamber between the outer tube and the inner tube into a plurality of independent chambers, and fills the independent chambers respectively. During the long-term use of the exhaust pipe, the falling of the filler at the top of the exhaust pipe and the accumulation of the filler at the bottom are reduced, and the problem of the accumulation of the material filled in the internal interlayer caused by long-term vibration of the traditional exhaust pipe during long-term use is solved, resulting in voids in the interlayer of the exhaust pipe and affecting the sound insulation and heat preservation effect.

[0016] 2. Compared with the prior art, the utility model further has a connecting rod fixed on the inner side of the outer tube, and a plurality of connecting rods are correspondingly fixed in each independent chamber. During the long-term use of the exhaust pipe, the vibration of the exhaust pipe and the blowing of wind can drive the connecting rod to shake, thereby shaking the filler filled in the independent chamber to prevent the filler from accumulating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a highly efficient heat-insulating exhaust structure proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] The reference numerals in the drawings of the specification include: outer tube 1, transverse partition 2, longitudinal partition 3, isolation ring 4, connecting rod 5, arc plate 6, through hole 7, and collar 8.

[0021] An efficient heat-insulating exhaust structure, for example Figure 1 As shown:

[0022] The invention comprises an outer tube 1, an interlayer and an inner tube which are arranged in sequence from the outside to the inside.

[0023] In this embodiment, the interlayer comprises a plurality of partitions fixedly installed between the outer tube 1 and the inner tube and a plurality of fillers respectively filled between the outer tube 1 and the inner tube. A damping layer is also bonded to the inner side of the outer tube 1.

[0024] The partitions are fixedly installed between the outer tube 1 and the inner tube in a horizontal and vertical staggered manner, and form transverse partitions 2 and longitudinal partitions 3. There are gaps between adjacent transverse partitions 2 and longitudinal partitions 3, and connecting slots are opened on the inner sides of the transverse partitions 2 and longitudinal partitions 3. The gaps and connecting slots are left to weaken the impact on the inner tube and the outer tube 1 caused by the vibration of the exhaust pipe through the partition during long-term use. Several adjacent transverse partitions 2 and longitudinal partitions 3 are enclosed together to form several independent chambers, and the fillers are filled into the independent chambers respectively, and the filled fillers include two different materials, and the two different materials are staggered when filling to increase the sound insulation and heat preservation effect.

[0025] In this embodiment, a plurality of connecting rods 5 passing through the inner tube and extending into the inner side of the inner tube are fixedly installed on the inner side of the outer tube 1. Three connecting rods 5 are installed in each independent chamber. In other embodiments, the number of connecting rods 5 in each independent chamber can be set independently.

[0026] The inner tube is composed of a plurality of interconnected arc plates 6, and a plurality of through holes 7 for the connecting rods 5 to pass through are opened on the arc plates 6, and the size of the through holes 7 is larger than the size of the connecting rods 5. A ring 8 for closing the through holes 7 and allowing the connecting rods 5 to pass through is fixedly installed at a section where each connecting rod 5 extends into the inner side of the arc plate 6.

[0027] An isolation ring 4 for separating adjacent arc-shaped plates 6 is also fixedly mounted on the inner side of the longitudinal partition 3 to prevent damage caused by the adjacent arc-shaped plates 6 colliding with each other due to shaking during long-term use.

[0028] The utility model has a plurality of longitudinal partitions 3 and transverse partitions installed between the outer tube 1 and the inner tube, and separates a plurality of independent chambers, and fillers are filled in the independent chambers respectively. During the long-term use of the exhaust pipe, the falling of the filler on the top of the exhaust pipe and the accumulation of the filler at the bottom are reduced. Moreover, during use, the vibration of the exhaust pipe and the blowing of wind can drive the connecting rod 5 to shake, thereby shaking the filler filled in the independent chamber to prevent the filler from accumulating.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An efficient heat-insulating exhaust structure, comprising an outer tube, an interlayer and an inner tube arranged in sequence from outside to inside, characterized in that: The interlayer includes a plurality of partitions fixed between the outer tube and the inner tube and a plurality of fillers respectively filled between the outer tube and the inner tube. The adjacent partitions divide the accommodating chamber between the outer tube and the inner tube into a plurality of independent chambers for accommodating the fillers. A plurality of connecting rods passing through the inner tube and extending into the inner side of the inner tube are also fixed to the inner side of the outer tube. A plurality of connecting rods are correspondingly fixed in each independent chamber.

2. A highly efficient heat-insulating exhaust structure according to claim 1, characterized in that: The partitions are fixedly connected between the outer tube and the inner tube in a horizontally and vertically staggered manner, and form a horizontal partition and a vertical partition.

3. The high-efficiency heat-insulating exhaust structure according to claim 2, characterized in that: There are gaps between adjacent transverse partitions and longitudinal partitions, and communicating grooves are opened on the inner sides of the transverse partitions and the longitudinal partitions.

4. The high-efficiency heat-insulating exhaust structure according to claim 1, characterized in that: The inner tube is composed of a plurality of arc-shaped plates connected to each other, and each of the arc-shaped plates is respectively provided with a through hole for the connecting rod to pass through.

5. The high-efficiency heat-insulating exhaust structure according to claim 4, characterized in that: The size of the through hole is larger than that of the connecting rod, and the connecting rod extends into the inner side of the arc-shaped plate and is fixedly connected with a collar for closing the through hole.

6. The high-efficiency heat-insulating exhaust structure according to claim 4, characterized in that: An isolation ring belt for separating adjacent arc-shaped plates is also fixedly connected to the inner side of the partition plate.

7. The high-efficiency heat-insulating exhaust structure according to claim 1, characterized in that: The inner wall of the outer tube is also fixedly connected with a damping layer.

8. The high-efficiency heat-insulating exhaust structure according to claim 1, characterized in that: The filler comprises at least two different materials.

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