Molded pipe fitting for heat insulation and noise reduction

Abstract

The utility model discloses a forming pipe fitting for heat insulation and noise reduction, which comprises a forming pipe fitting and a cross plate, an annular butt joint groove is arranged on one side of the forming pipe fitting, the cross plate is arranged in the middle of the inside of the forming pipe fitting, and a rotary connecting shaft is arranged in the cross plate. The two sides of the outer wall of the connecting shaft are each provided with four fan blades which are annularly distributed at equal intervals, the annular groove is formed in the outer wall of the formed pipe fitting, a rock wool heat insulation plate is fixed to the inner side of the annular groove in an adhesion mode, the turbulent flow rings are arranged on the two sides of the interior of the formed pipe fitting, and the turbulent flow rings are arranged on the two sides of the interior of the formed pipe fitting. And a metal net is arranged in each turbulent flow ring. According to the forming pipe fitting for heat insulation and noise reduction, noise transmission generated when airflow passes through the interior can be reduced, noise is prevented from influencing the surrounding environment, meanwhile, it can be ensured that heat is effectively isolated in the forming pipe fitting, and therefore heat loss is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of formed pipe fittings, in particular to a formed pipe fitting for heat insulation and sound reduction. Background Art

[0002] Molded pipe fittings refer to pipeline components with specific shapes and sizes made of specific materials. These pipe fittings not only have a variety of shapes and sizes, but also have excellent physical properties and chemical stability to adapt to various complex working environments and media requirements. The main function of molded pipe fittings is to connect, divert and divert the fluid medium in the pipeline system. They can effectively connect different parts of the pipeline into a complete system to ensure the smooth flow of the fluid in the pipeline. At the same time, the pipe fittings can also realize the diversion and diversion of the pipeline according to the needs of the project to meet specific process requirements.

[0003] The existing Chinese patent with announcement number CN212455915U discloses a large-diameter injection molded pipe fitting, including a pipe body, and an insertion end and a plug end are respectively provided at both ends of the pipe body. Multiple pipe bodies can be connected and combined into a pipe group in sequence. After the insertion end and the plug end are inserted, a clamping structure for limiting axial displacement capacity is provided between the two. The clamping structure includes a slider arranged on the end face of the insertion end and uniformly spaced along the center of the circle. The slider is connected to the radial sliding connection of the insertion end, and an elastic member is provided between the slider and the insertion end to drive the slider to move toward the center of the circle of the insertion end.

[0004] Although the above scheme can realize the quick connection between multiple formed pipe fittings, when the airflow flows in the formed pipe fitting, when the flow rate of the airflow reaches a certain frequency, it will generate resonance noise with the cylinder wall, causing noise pollution. At the same time, the formed pipe fitting lacks effective insulation measures when transporting high-temperature gases, which easily leads to heat loss. Therefore, it does not meet the existing needs. In this regard, we propose a formed pipe fitting for heat insulation and silencing. Utility Model Content

[0005] The utility model aims to provide a heat-insulating and noise-reducing shaped pipe fitting to solve the problem that the shaped pipe fittings proposed in the above background technology are prone to generate noise and heat loss during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat-insulating and sound-absorbing shaped pipe fitting, comprising a shaped pipe fitting, one side of which is provided with an annular butt joint groove;

[0007] It also includes a cross plate, which is arranged at the middle position inside the molded tube, a rotating connecting shaft is arranged inside the cross plate, and four fan blades are arranged in an annular shape and equidistantly distributed on both sides of the outer wall of the connecting shaft;

[0008] It also includes an annular groove, which is opened on the outer wall of the molded pipe, and a rock wool insulation board is bonded and fixed to the inner side of the annular groove;

[0009] It also includes spoiler rings, which are arranged on both sides of the inside of the forming tube, and the inside of the spoiler rings are both provided with metal meshes.

[0010] Preferably, a bearing is provided inside the cross plate, an inner wall of the bearing is fixedly connected to the connecting shaft, and an outer wall of the bearing is fixedly connected to the cross plate.

[0011] Preferably, guide cones are welded to both ends of the connecting shaft.

[0012] Preferably, an air bag is bonded and fixed to the outer wall of the rock wool insulation board.

[0013] Preferably, an outer tube sleeve of aluminum silicate fiber is adhered and fixed to the outer wall of the molded tube, and the outer tube sleeve of aluminum silicate fiber is adhered and fixed to the airbag.

[0014] Preferably, an annular connecting block is integrally formed on one side of the molded pipe, and the annular connecting block is threadedly connected to the annular docking groove, and a rubber cushion is bonded and fixed inside the annular connecting block.

[0015] Preferably, the outer wall of the formed pipe is coated with a heat-insulating coating.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a cross plate at the middle position inside the formed pipe. When the airflow passes through the formed pipe, the guide cone can guide the airflow so that the airflow blows the fan blades. The rotation of the fan blades will cause the flow velocity frequency of the airflow to become chaotic. This flow velocity frequency chaos will break the airflow noise source that may have been formed. Therefore, the rotation of the fan blades can effectively eliminate or reduce the noise generated when the airflow passes through the formed pipe, making the overall working environment quieter and more comfortable.

[0018] 2. The utility model provides spoiler rings on both sides of the inside of the formed pipe, and a metal mesh is provided inside the spoiler ring. When the airflow passes through the metal mesh, the porous structure of the metal mesh can cause the airflow, which originally flows in a straight line, to undergo a slight change when passing through. The airflow is forced to shuttle and flow in the pores of the metal mesh, thereby changing the flow path and speed of the airflow. This change causes the flow frequency of the airflow to change when passing through the formed pipe, thereby further reducing the transmission of the overall noise and preventing the noise from affecting the surrounding environment.

[0019] 3. The utility model has an annular groove on the outer wall of the formed pipe fitting, the outer wall of the formed pipe fitting is provided with an aluminum silicate fiber outer pipe sleeve, and the inner wall of the formed pipe fitting is coated with a thermal insulation coating, which can reduce the transfer of heat to the outside. A rock wool insulation board and an air bag are arranged in the annular groove. The rock wool insulation board is a high-quality thermal insulation material that can effectively block the transfer of heat and reduce heat loss. The air bag is filled with an insulating inert gas, such as argon or krypton. These gases have extremely low thermal conductivity and can further reduce the heat transfer efficiency. At the same time, the external aluminum silicate fiber outer pipe sleeve is made of aluminum silicate fiber, which is a high-temperature resistant and corrosion-resistant high-quality thermal insulation material with excellent thermal insulation performance and mechanical strength. It protects the formed pipe fitting from erosion by the external environment and further enhances its thermal insulation performance to ensure that the heat is effectively isolated inside the formed pipe fitting, thereby avoiding heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a front view schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a side view schematic diagram of the internal structure of the utility model;

[0023] Figure 4 It is a side view schematic diagram of the spoiler ring structure of the utility model;

[0024] Figure 5 For the utility model Figure 2 A partial enlarged view of the middle A area;

[0025] Figure 6 For the utility model Figure 2 A partial enlarged view of area B.

[0026] In the figure: 1. formed pipe fittings; 2. annular connecting blocks; 3. annular docking grooves; 4. rubber cushions; 5. annular grooves; 6. rock wool insulation boards; 7. air bags; 8. thermal insulation coatings; 9. spoiler rings; 10. metal mesh; 11. cross plates; 12. bearings; 13. connecting shafts; 14. fan blades; 15. guide cones; 16. aluminum silicate fiber outer sleeves. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 The utility model provides a technical solution: a heat-insulating and sound-absorbing shaped pipe, comprising a shaped pipe 1, and a circular butt joint groove 3 is provided on one side of the shaped pipe 1;

[0029] It also includes a cross plate 11, which is arranged at the middle position inside the formed pipe 1, and a rotating connecting shaft 13 is arranged inside the cross plate 11, and four fan blades 14 are arranged in an annular shape and equidistantly distributed on both sides of the outer wall of the connecting shaft 13;

[0030] It also includes an annular groove 5, which is opened on the outer wall of the formed pipe 1, and a rock wool insulation board 6 is bonded and fixed to the inner side of the annular groove 5;

[0031] The shaped tube 1 further comprises spoiler rings 9 which are arranged on both sides of the inside of the shaped tube 1 , and metal meshes 10 are arranged inside the spoiler rings 9 .

[0032] When in use, the two formed pipe fittings 1 are quickly spliced ​​by threading the annular connecting block 2 and the annular docking groove 3. The rubber pad 4 is squeezed at the connection to ensure that there is no leakage. The metal mesh 10 and the spoiler ring 9 change the airflow path to reduce noise. The rotation of the guide cone 15 and the fan blades 14 further reduces the noise. The thermal insulation system composed of the thermal insulation coating 8, rock wool insulation board 6, thermal insulation airbag 7 and aluminum silicate fiber outer pipe sleeve 16 can effectively isolate heat, reduce heat conduction, reduce heat loss, and protect the formed pipe fitting 1 from external erosion.

[0033] See also Figure 3 and Figure 5 A bearing 12 is disposed inside the cross plate 11, the inner wall of the bearing 12 is fixedly connected to the connecting shaft 13, and the outer wall of the bearing 12 is fixedly connected to the cross plate 11. The bearing 12 can ensure that the connecting shaft 13 rotates more smoothly, reduce friction and wear, and improve the smoothness and durability of the rotation of the fan blade 14;

[0034] See also Figure 5 Both ends of the connecting shaft 13 are welded with guide cones 15, which can guide the flow direction of the airflow so that the airflow blows the fan blades 14 more evenly, thereby enhancing the rotation effect of the fan blades 14 and the noise reduction effect;

[0035] See also Figure 2 , Figure 3 and Figure 6 The outer wall of the rock wool insulation board 6 is bonded and fixed with an air bag 7, and the air bag 7 is filled with an insulating inert gas, such as argon or krypton. The insulating inert gas has extremely low thermal conductivity, which can further reduce the heat transfer efficiency;

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 6 The outer wall of the molded pipe 1 is bonded and fixed with an aluminum silicate fiber outer tube sleeve 16, and the aluminum silicate fiber outer tube sleeve 16 is bonded and fixed to the airbag 7. The aluminum silicate fiber outer tube sleeve 16 not only has good heat insulation performance, but also can enhance the structural strength of the molded pipe 1 and protect the molded pipe 1 from erosion by the external environment;

[0037] See also Figure 1 and Figure 2 A ring-shaped connecting block 2 is integrally formed on one side of the formed pipe 1, and the ring-shaped connecting block 2 is threadedly connected to the ring-shaped docking groove 3. A rubber cushion 4 is bonded and fixed inside the ring-shaped connecting block 2. The threaded connection method can achieve a quick and stable connection, and the rubber cushion 4 can fill the small gap at the connection, improve the sealing performance, and prevent gas leakage;

[0038] See also Figure 6 The outer wall of the formed pipe 1 is coated with a thermal insulation coating 8, which can effectively reflect and absorb heat, reduce the transfer of heat to the outside of the formed pipe 1, and improve the overall thermal insulation effect, thereby reducing energy consumption and protecting the surrounding environment.

[0039] Working principle: When in use, two formed pipe fittings 1 can be butt-jointed, and the annular connecting block 2 and the annular butt groove 3 can be threadedly connected to achieve quick connection. After the two formed pipe fittings 1 are butt-jointed, the rubber pad 4 will be squeezed between the annular connecting block 2 and the annular butt groove 3, thereby effectively filling the small gap between them, preventing gas leakage and enhancing the sealing. When the airflow flows inside the formed pipe fitting 1, it will first pass through the metal mesh 10. The porous structure of the metal mesh 10 can cause the originally linear airflow to undergo a slight change when passing through, causing the flow velocity frequency of the gas to become chaotic, thereby eliminating the noise generated when passing through the inside of the formed pipe fitting 1. After the airflow passes through the metal mesh 10, it will be guided by the guide cone 15, and the airflow will cause the fan blades 14 to rotate. The rotation of the fan blades 14 will cause the flow velocity frequency of the airflow to become chaotic, thereby effectively eliminating or reducing the noise generated when the airflow passes through the inside of the formed pipe fitting 1 through the rotation of the fan blades 14, thereby reducing the overall noise transmission. To prevent noise from affecting the surrounding environment, when transporting high-temperature gas, the thermal insulation coating 8 can effectively reflect and absorb heat, reduce the transfer of heat to the outside of the formed pipe 1, thereby achieving a good thermal insulation effect. The rock wool insulation board 6 arranged inside the annular groove 5 has good thermal insulation performance and fire resistance, which can effectively block the transfer of heat and reduce heat loss. At the same time, the airbag 7 is filled with an insulating inert gas. The insulating inert gas has extremely low thermal conductivity, which can further reduce the heat transfer efficiency. When the airbag 7 is heated, the gas volume inside it will expand to form an insulation layer, thereby effectively reducing heat loss. Finally, the outer wall of the formed pipe 1 is also wrapped with a layer of aluminum silicate fiber outer pipe sleeve 16. The aluminum silicate fiber outer pipe sleeve 16 has excellent thermal insulation performance and mechanical strength, which protects the formed pipe 1 from erosion by the external environment, and further enhances its thermal insulation performance, ensuring that the heat is effectively isolated inside the formed pipe 1, thereby avoiding heat loss.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A heat-insulating and sound-absorbing shaped pipe, comprising a shaped pipe (1), one side of the shaped pipe (1) is provided with an annular butt joint groove (3), characterized in that: It also comprises a cross plate (11) which is arranged at a middle position inside the shaped tube (1), a rotating connecting shaft (13) is arranged inside the cross plate (11), and four fan blades (14) are arranged in an annular shape and equidistantly distributed on both sides of the outer wall of the connecting shaft (13); It also comprises an annular groove (5) which is formed on the outer wall of the shaped pipe (1), and a rock wool heat insulation board (6) is bonded and fixed to the inner side of the annular groove (5); It also comprises spoiler rings (9) which are arranged on both sides of the inside of the shaped pipe (1), and the inside of the spoiler rings (9) are both provided with metal meshes (10).

2. A heat-insulating and sound-absorbing shaped pipe according to claim 1, characterized in that: A bearing (12) is arranged inside the cross plate (11), the inner wall of the bearing (12) is fixedly connected to the connecting shaft (13), and the outer wall of the bearing (12) is fixedly connected to the cross plate (11).

3. A heat-insulating and sound-absorbing shaped pipe according to claim 2, characterized in that: Both ends of the connecting shaft (13) are welded with guide cones (15).

4. A heat-insulating and sound-absorbing shaped pipe according to claim 1, characterized in that: An air bag (7) is adhesively fixed to the outer wall of the rock wool heat insulation board (6).

5. A heat-insulating and sound-absorbing shaped pipe according to claim 4, characterized in that: An aluminum silicate fiber outer tube sleeve (16) is adhesively fixed to the outer wall of the molded tube (1), and the aluminum silicate fiber outer tube sleeve (16) is adhesively fixed to the airbag (7).

6. A heat-insulating and sound-absorbing shaped pipe according to claim 5, characterized in that: An annular connection block (2) is integrally formed on one side of the molded pipe (1), and the annular connection block (2) is threadedly connected to the annular docking groove (3), and a rubber cushion (4) is bonded and fixed inside the annular connection block (2).

7. The heat-insulating and sound-absorbing shaped pipe according to claim 1, characterized in that: The outer wall of the shaped pipe (1) is coated with a heat-insulating coating (8).

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