Thermal insulation pipe with aerogel coated with stainless steel

Abstract

The utility model discloses a stainless steel cladding aerogel thermal insulation pipe, which comprises a working pipe and a stainless steel outer protective pipe, the outer side of the working pipe is coated with a thermal insulation coating layer, the outer side of the thermal insulation coating layer is coated with an aerogel thermal insulation layer, the outer side of the aerogel thermal insulation layer is sleeved with a hot galvanizing lining pipe, and the outer side of the hot galvanizing lining pipe is sleeved with a stainless steel outer protective pipe. The utility model relates to the technical field of heat preservation pipes, the aerogel heat preservation layer and the aerogel coating layer are applied to the heat preservation pipe and serve as double heat preservation and insulation layers, the heat preservation effect can be greatly improved, and heat loss can be effectively reduced for long-distance heat supply; good heat preservation and heat insulation effects are achieved, and heat transfer can be greatly blocked; the gaps are filled with the polyurethane heat preservation layers, the structural connection strength between all the parts can be improved, heat of the working pipe transferred to the stainless steel outer protection pipe can be reduced, and meanwhile the production cost of the heat preservation pipe can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a thermal insulation pipe made of stainless steel coated with aerogel. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquids, gases and other media, and is used for thermal insulation projects of pipelines in the petroleum, chemical, aerospace, military, central heating, central air conditioning, municipal and other industries. Most of the polyurethane insulated pipes in the existing technology are only composed of a working steel pipe, polyurethane, glass wool insulation layer, polyethylene or steel pipe as an outer protective pipe. Its thermal insulation effect is poor, resulting in a large heat loss. In addition, there are no special sealing parts for the pipe end face, and the exposed end face of the insulated pipe can only be wrapped and wrapped manually in the later stage of construction. External water vapor can easily enter the insulation layer through the pipe end face, thereby accelerating the corrosion and aging of the insulation layer, affecting the service life of the insulated pipe. In view of this, in-depth research on the above problems has led to the creation of this case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a stainless steel aerogel-coated heat-insulating pipe, which solves the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stainless steel aerogel-coated thermal insulation pipe, comprising a working pipe and a stainless steel outer protective pipe, the outer side of the working pipe is coated with a thermal insulation coating layer, the outer side of the thermal insulation coating layer is coated with an aerogel insulation layer, the outer side of the aerogel insulation layer is provided with a hot-dip galvanized inner liner pipe, a first polyurethane insulation layer is filled between the hot-dip galvanized inner liner pipe and the aerogel insulation layer, the outer side of the hot-dip galvanized inner liner pipe is coated with an aerogel insulation coating layer, the outer side of the aerogel insulation coating layer is coated with a reflective film, a second polyurethane insulation layer is filled between the reflective film and the stainless steel outer protective pipe, and a sealing component is assembled and connected to the end of the stainless steel outer protective pipe and the working pipe.

[0005] The sealing assembly comprises an annular sealing plate, a conical heat-insulating block is provided on one side of the annular sealing plate, and rubber sealing gaskets are provided on the inner and outer annular surfaces of the annular sealing plate.

[0006] A U-shaped locking component is welded to the side wall of the annular sealing plate, and the U-shaped locking component is assembled and connected to the stainless steel outer protective tube.

[0007] The above-mentioned U-shaped locking component includes a U-shaped plate, a locking bolt and a nut. The U-shaped plate is welded to the side wall of the annular sealing plate and is clamped with the stainless steel outer protective tube. The locking bolt passes through the U-shaped plate and the side wall of the stainless steel outer protective tube, and the nut is screwed onto the lower end of the locking bolt.

[0008] The aerogel thermal insulation layer comprises an aerogel felt, which is coated on the outside of the thermal insulation coating layer and is evenly wound and fixed by glass fiber cloth.

[0009] The above-mentioned reflective film is a double-layer aluminum foil heat-insulating bubble film.

[0010] The utility model provides a thermal insulation pipe coated with aerogel in stainless steel. It has the following beneficial effects: the thermal insulation pipe coated with aerogel in stainless steel has an aerogel insulation layer coated on the outside of a working pipe sprayed with a thermal insulation coating layer, and an aerogel thermal insulation coating layer is coated on the outside of a hot-dip galvanized liner pipe. The outside of the aerogel thermal insulation coating layer is coated with a reflective film. The aerogel insulation layer and the aerogel coating layer are applied to the thermal insulation pipe and used as a double thermal insulation layer, which can greatly improve the thermal insulation effect. For long-distance heating, it can effectively reduce heat loss and improve energy efficiency. It has excellent thermal insulation effect and can significantly block heat transfer. The first polyurethane thermal insulation layer is used to fill the gap between the working pipe, the aerogel insulation layer and the hot-dip galvanized liner pipe, and the second polyurethane thermal insulation layer is used to fill the gap between the working pipe, the aerogel insulation layer and the hot-dip galvanized liner pipe. The second polyurethane insulation layer fills the gap between the hot-dip galvanized inner lining pipe and the stainless steel outer protective pipe, which not only improves the structural connection strength between the parts, but also reduces the heat transfer from the working pipe to the stainless steel outer protective pipe, while reducing the production cost of the insulation pipe. Combined with the setting of the aerogel insulation layer, it greatly improves the insulation effect of the insulation pipe and reduces heat loss. The stainless steel outer protective pipe and the end of the working pipe are assembled and connected with a sealing component, which can effectively prevent the entry of rainwater, thereby avoiding the corrosion of the pipeline by rainwater and resulting in a reduction in life. The sealing component adopts a split structural design and can be installed according to the actual situation at the site after the pipeline is cut. It is practical and widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the partial layered cross-sectional structure of a stainless steel aerogel-coated thermal insulation pipe described in the present invention.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of a stainless steel aerogel-coated thermal insulation pipe described in the present invention.

[0013] Figure 3 This is a schematic diagram of the partial axonometric structure of the utility model with an annular sealing plate installed.

[0014] Figure 4 It is a schematic diagram of the three-dimensional structure of the annular sealing plate of the utility model.

[0015] Figure 5 This is a schematic diagram of the axonometric structure of the annular sealing plate of the present invention.

[0016] In the figure: 1. working pipe; 2. stainless steel outer protective pipe; 3. thermal insulation coating layer; 4. aerogel insulation layer; 5. hot-dip galvanized lining pipe; 6. first polyurethane insulation layer; 7. aerogel insulation coating layer; 8. reflective film; 9. second polyurethane insulation layer; 10. sealing assembly; 1001. annular sealing plate; 1002. conical insulation block; 1003. rubber sealing gasket; 1004. U-shaped plate; 1005. locking bolt; 1006. nut. DETAILED DESCRIPTION

[0017] 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.

[0018] Example: In conjunction with the instructions attached Figure 1-5It can be seen that the present application specifically designs a stainless steel coated aerogel thermal insulation pipe, comprising a working pipe 1 and a stainless steel outer protective pipe 2, wherein the outer side of the working pipe 1 is coated with a thermal insulation coating layer 3, the outer side of the thermal insulation coating layer 3 is coated with an aerogel insulation layer 4, and the outer side of the aerogel insulation layer 4 is provided with a hot-dip galvanized liner pipe 5, the aerogel insulation layer 4 comprises an aerogel felt, the aerogel felt is coated on the outside of the thermal insulation coating layer 3 and is evenly wound and fixed by glass fiber cloth, the hot-dip galvanized liner pipe 5 and the aerogel insulation layer 4 are filled with a first polyurethane insulation layer 6, the hot-dip galvanized liner pipe 5 is coated with an aerogel thermal insulation coating layer 7, and the outer side of the aerogel thermal insulation coating layer 7 is covered with a reflective film 8. The reflective film 8 is a double-layer aluminum foil thermal insulation bubble film. A second polyurethane thermal insulation layer 9 is filled between the reflective film 8 and the stainless steel outer protective tube 2. The stainless steel outer protective tube 2 and the end of the working tube 1 are assembled and connected with a sealing component 10. The aerogel thermal insulation layer 4 is coated on the outer side of the working tube 1 sprayed with the thermal insulation coating layer 3. The outer side of the hot-dip galvanized liner tube 5 is coated with an aerogel thermal insulation coating layer 7. The outer side of the aerogel thermal insulation coating layer 7 is covered with a reflective film 8. The aerogel thermal insulation layer 7 is coated with a reflective film 8. The thermal insulation layer 4 and the aerogel coating layer are applied to the insulation pipe and serve as a double thermal insulation layer, which can greatly improve the thermal insulation effect, effectively reduce heat loss for long-distance heating, improve energy efficiency, have excellent thermal insulation effect, and can significantly block heat transfer; the first polyurethane insulation layer 6 is used to fill the gap between the working pipe 1, the aerogel insulation layer 4 and the hot-dip galvanized liner pipe 5, and the second polyurethane insulation layer 9 is used to fill the gap between the hot-dip galvanized liner pipe 5 and the stainless steel outer protective pipe 2, which not only improves the structural connection strength between the parts, but also improves the thermal insulation effect. degree, and can also reduce the heat transfer from the working pipe 1 to the stainless steel outer protective pipe 2, while reducing the production cost of the insulation pipe, and in conjunction with the setting of the aerogel insulation layer 4, greatly improving the insulation effect of the insulation pipe and reducing heat loss; the stainless steel outer protective pipe 2 and the end of the working pipe 1 are assembled and connected with a sealing component 10, which can effectively prevent the entry of rainwater, thereby avoiding the corrosion of the pipeline by rainwater and resulting in a reduction in service life. The sealing component 10 adopts a split structural design and can be installed according to the actual situation at the site after the pipeline is cut. It has good practicality and wide application.

[0019] In the specific implementation process, the above-mentioned sealing assembly 10 includes an annular sealing plate 1001, a conical insulation block 1002 is provided on one side of the annular sealing plate 1001, and rubber sealing gaskets 1003 are provided on the inner and outer ring surfaces of the annular sealing plate 1001, wherein a U-shaped locking component is welded on the side wall of the annular sealing plate 1001, and the U-shaped locking component is assembled and connected with the stainless steel outer protective tube 2; the above-mentioned U-shaped locking component includes a U-shaped plate 1004, a locking bolt 1005 and a nut 1006, the U-shaped plate 1004 is welded to the side wall of the annular sealing plate 1001 and is mutually clamped with the stainless steel outer protective tube 2, the locking bolt 1006 passes through the U-shaped plate 1004 and the side wall of the stainless steel outer protective tube 2, the nut 1006 is screwed on the lower end of the locking bolt 1005, the annular sealing plate 1001 is buckled onto the working tube 1, and it is pressed forward into the stainless steel outer protective tube 2, at this time, the rubber sealing gaskets 1003 arranged on the inner and outer ring surfaces of the annular sealing plate 1001 seal it with the working tube 1 and the stainless steel outer protective tube 2, and the conical insulation block 1002 arranged on one side of the annular sealing plate 1001 can further improve the thermal insulation performance of the end face of the sleeve. In addition, during the insertion process of the annular sealing plate 1001, the U-shaped plate 1004 is buckled on the side wall of the stainless steel outer protective tube 2, and a through hole is opened at the position of the U-shaped plate 1004 corresponding to the stainless steel outer protective tube 2. The U-shaped plate 1004 is assembled and fixed on the stainless steel outer protective tube 2 using locking bolts 1005 and nuts 1006, which can effectively enhance the connection stability between the annular sealing plate 1001 and the stainless steel outer protective tube 2, further improve the sealing effect, prevent external rainwater from entering, improve the thermal insulation effect, and extend the service life of the insulation pipe.

[0020] 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 stainless steel aerogel-coated thermal insulation pipe, comprising a working pipe and a stainless steel outer protective pipe, characterized in that: The outside of the working pipe is coated with a thermal insulation coating layer, the outside of the thermal insulation coating layer is covered with an aerogel insulation layer, the outside of the aerogel insulation layer is covered with a hot-dip galvanized inner liner pipe, the first polyurethane insulation layer is filled between the hot-dip galvanized inner liner pipe and the aerogel insulation layer, the outside of the hot-dip galvanized inner liner pipe is coated with an aerogel insulation coating layer, the outside of the aerogel insulation coating layer is covered with a reflective film, the second polyurethane insulation layer is filled between the reflective film and the stainless steel outer protective pipe, and the stainless steel outer protective pipe is assembled and connected to the end of the working pipe with a sealing component.

2. The stainless steel aerogel-coated thermal insulation pipe according to claim 1, characterized in that: The sealing assembly includes an annular sealing plate, a conical heat insulation block is provided on one side of the annular sealing plate, and rubber sealing gaskets are provided on the inner and outer annular surfaces of the annular sealing plate.

3. The stainless steel aerogel-coated thermal insulation pipe according to claim 2, characterized in that: A U-shaped locking component is welded to the side wall of the annular sealing plate, and the U-shaped locking component is assembled and connected to the stainless steel outer protective tube.

4. The stainless steel aerogel-coated thermal insulation pipe according to claim 3, characterized in that: The U-shaped locking component includes a U-shaped plate, a locking bolt and a nut. The U-shaped plate is welded to the side wall of the annular sealing plate and is clamped with the stainless steel outer protective tube. The locking bolt passes through the U-shaped plate and the side wall of the stainless steel outer protective tube, and the nut is screwed onto the lower end of the locking bolt.

5. The stainless steel aerogel-coated thermal insulation pipe according to claim 1, characterized in that: The aerogel thermal insulation layer comprises an aerogel felt, which is coated on the outside of the thermal insulation coating layer and is evenly wound and fixed by glass fiber cloth.

6. The stainless steel aerogel-coated thermal insulation pipe according to claim 1, characterized in that: The reflective film is a double-layer aluminum foil heat-insulating bubble film.

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