Novel prefabricated PIR cold insulation pipe shell

Abstract

The utility model discloses a novel prefabricated PIR cold insulation pipe shell which comprises a PIR outer cold insulation shell body and an inner conveying pipe body, an air bag ring is arranged between the PIR outer cold insulation shell body and the inner conveying pipe body, an embedded gasket is arranged on the outer side of the inner conveying pipe body in a sleeved mode, the outer side of the embedded gasket is connected with one side of the air bag ring, and the outer side of the embedded gasket is connected with the other side of the air bag ring. The space between the air bag ring and the PIR outer cold insulation shell is filled with heat preservation supporting layers, multiple sets of mounting empty grooves are evenly formed between the heat preservation supporting layers, compressed air bags are arranged in the multiple sets of mounting empty grooves, and the upper ends and the lower ends of the compressed air bags are connected with two sets of extrusion arc pieces. The beneficial effects of the utility model are that by using the structure of vibration compression adsorption inflation, stable quantitative gas is kept in the air bag ring of the fastening part, the fastening effect is not influenced, the manual operation is reduced, the overall durability is improved, the use convenience is also improved, and a certain moisture-proof effect is achieved through water absorption compression ventilation; and the overall use effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PIR cold-insulation tube shells, in particular to a novel prefabricated PIR cold-insulation tube shell. Background Art

[0002] PIR cold insulation shell is also called isocyanurate cold insulation shell. It is a foaming material generated by the reaction of isocyanate with polyether after the action of three-quantity catalyst. PIR cold insulation shell has low thermal conductivity and will become lower at low temperature. The good closed-cell structure is the best insulator and is widely used in cryogenic equipment and pipeline floor mats, brackets, supports and pipeline insulation.

[0003] After searching, the Chinese patent authorization number CN202322208057.8 discloses a composite material cold insulation prefabricated shell, including: a pipe, the outer wall of the pipe is wrapped with a thermal insulation tape, the outer side of the airbag snare is covered with an external threaded sleeve, the outer side of the external threaded sleeve is covered with a PIR prefabricated cold insulation pipe shell, one end of the PIR prefabricated cold insulation pipe shell is provided with a step, and the inner wall of the other end is provided with a groove, the thickness of the step is half the thickness of the PIR prefabricated cold insulation pipe shell, the step and the groove cooperate, the utility model can use an external threaded sleeve of the same size for pipes of various specifications, so that the PIR prefabricated cold insulation pipe shell can be suitable for pipes of various specifications, and the PIR prefabricated insulation pipe shell is connected by threads.

[0004] The composite material cold insulation prefabricated shell in the above patent has the following shortcomings: first, the above prefabricated cold insulation tube shell maintains its tightness when installed and connected with pipes of different specifications through the inflation elastic effect of the airbag ring, but the airbag ring may leak gas during long-term use, and the tightness will be reduced. Generally, it is necessary to check the inflation manually, which increases the inconvenience of operation and reduces the overall durability. Secondly, if used in a relatively humid environment for a long time, water vapor is easy to accumulate in it, and the directly sealed airbag ring reduces the moisture-proof effect and reduces the overall use effect.

[0005] Therefore, we propose a new type of prefabricated PIR cold insulation shell to solve the above problems. Utility Model Content

[0006] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0007] To this end, the technical solution adopted in this utility model is:

[0008] A novel prefabricated PIR cold-insulation tube shell comprises a PIR outer cold-insulation shell and an inner conveying tube body, an airbag ring is arranged between the PIR outer cold-insulation shell and the inner conveying tube body, an embedded gasket is sleeved on the outer side of the inner conveying tube body, the outer side of the embedded gasket is connected to one side of the airbag ring, a thermal insulation support layer is filled between the airbag ring and the PIR outer cold-insulation shell, a plurality of groups of installation slots are evenly arranged between the thermal insulation support layers, a plurality of groups of installation slots are inside each of compression airbags, two groups of extrusion arc sheets are connected to the upper and lower ends of the compression airbag, compression holes are symmetrically arranged on the upper and lower end surfaces of the compression airbag, through holes are arranged in the middle of the two groups of extrusion arc sheets, a plurality of groups of air guide tubes are embedded and installed on the inner side of the PIR outer cold-insulation shell, a plurality of groups of air injection holes are arranged on the outer side surface of the airbag ring corresponding to the plurality of installation slots, and absorbent cotton is filled inside the compression airbag.

[0009] In a preferred example, the present invention can be further configured as follows:

[0010] By adopting the above technical solution, the through holes, the gas injection holes and the compression holes are all correspondingly connected to each other.

[0011] In a preferred example, the present invention can be further configured as follows:

[0012] By adopting the above technical solution, the two groups of extruded arc sheets are respectively fitted and abutted against the inner surface of the PIR outer cold-insulating shell and the outer surface of the airbag ring.

[0013] In a preferred example, the present invention can be further configured as follows:

[0014] By adopting the above technical solution, one extended end of the air guide tube is communicated with the through hole, and the other end thereof extends through the outer end of the PIR outer cold-insulating shell.

[0015] In a preferred example, the present invention can be further configured as follows:

[0016] By adopting the above technical solution, the interior of the extended end of the air guide pipe located at the outer cold-keeping shell of the PIR is filled with a filtering and adsorbing filling layer.

[0017] In a preferred example, the present invention can be further configured as follows:

[0018] By adopting the above technical solution, the outer side surface of the inner conveying tube body is evenly connected to multiple groups of embedded sliding blocks.

[0019] In a preferred example, the present invention can be further configured as follows:

[0020] By adopting the above technical solution, the inner conveying tube body is embedded and clamped with each other through multiple groups of embedded sliding blocks and embedded gaskets.

[0021] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0022] 1. In the utility model, by arranging a compression airbag, an extrusion arc sheet, an air guide tube and an air injection hole, when in use, when the inner conveying tube body is conveying materials, the vibration generated causes the whole to vibrate, so that the compression airbag is continuously compressed by the extrusion arc sheet, and the gas is introduced into the interior of the airbag circle through the air guide tube, the through hole, the compression hole and the air injection hole. The continuous contraction mode makes the gas in the airbag circle form a fixed amount, maintains the overall tightness, and does not need to be continuously inflated manually, thereby improving the overall durability and the overall convenience of use.

[0023] 2. In the utility model, absorbent cotton and air guide tube are arranged. When in use, the moisture is also introduced into the absorbent cotton through the continuous contraction of the compressed air bag in the above-mentioned beneficial effect. In the process of continuous compression, the airflow also continuously dries the water vapor in the absorbent cotton, which also plays a partial moisture-proof effect and improves the overall use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 It is a right side cross-sectional structural schematic diagram of an embodiment of the utility model;

[0026] Figure 3 This is an enlarged schematic diagram of the structure at location A of an embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. PIR outer cold insulation shell; 2. Inner conveying pipe body; 3. Embedded gasket; 4. Insulation support layer; 5. Airbag ring; 6. Compression airbag; 7. Extrusion arc piece; 8. Air injection hole; 9. Installation slot; 10. Air guide pipe; 11. Compression hole; 12. Filter adsorption filling layer; 13. Through hole; 14. Embedded slider; 15. Water-absorbent cotton. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0031] A novel prefabricated PIR cold-insulation pipe shell provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] Combination Figure 1-Figure 3 As shown, the utility model provides a new type of prefabricated PIR cold insulation pipe shell,

[0034] Specifically, it comprises a PIR outer cold-insulating shell 1 and an inner conveying tube body 2, an airbag ring 5 is arranged between the PIR outer cold-insulating shell 1 and the inner conveying tube body 2, an outer side of the inner conveying tube body 2 is sleeved with an embedded gasket 3, the outer side of the embedded gasket 3 is connected to one side of the airbag ring 5, a thermal insulation support layer 4 is filled between the airbag ring 5 and the PIR outer cold-insulating shell 1, the thermal insulation support layer 4 mainly serves to separate and support the PIR outer cold-insulating shell 1 and the airbag ring 5, and also has a thermal insulation effect, a plurality of groups of installation slots 9 are evenly arranged between the thermal insulation support layers 4, and a plurality of groups of installation slots 9 are arranged inside, and two groups of extrusion arc sheets 7 are connected to the upper and lower ends of the compression airbag 6, and compression holes 11 are symmetrically opened on the upper and lower end surfaces of the compression airbag 6, and through holes 13 are opened in the middle of the two groups of extrusion arc sheets 7, and a plurality of groups of guide airbags 7 are embedded and installed on the inner side of the PIR outer cold-insulating shell 1. The air pipe 10 and the outer side surface of the airbag ring 5 are provided with multiple groups of air injection holes 8 corresponding to the multiple groups of mounting slots 9. The interior of the compressed airbag 6 is filled with absorbent cotton 15. The through holes 13, the air injection holes 8 and the compression holes 11 are correspondingly connected to each other. The two groups of extrusion arc sheets 7 are respectively fitted and abutted with the inner surface of the PIR outer cold insulation shell 1 and the outer surface of the airbag ring 5. One end of the air guide pipe 10 is connected with the through hole 13, and the other end extends through the outer end of the PIR outer cold insulation shell 1. The use of the above-mentioned components, especially the compressed airbag 6 is squeezed and continuously compressed by the extrusion arc sheet 13, introduces the gas into the interior of the airbag ring 5 through the air guide pipe 10, the through hole 13, the compression hole 11 and the air injection hole 8, so that the gas in the airbag ring 5 forms a quantitative form, which does not affect the tightness while reducing manual operation, improving the overall durability, and improving the overall convenience of use.

[0035] Embodiment 2:

[0036] Combination Figure 3 As shown, based on the first embodiment,

[0037] Specifically, the air duct 10 is located at the extended end of the PIR outer cold insulation shell 1 and is filled with a filtering adsorption filling layer 12. The filtering adsorption filling layer 12 is mainly used to filter the dust contained in the inhaled gas. The use of the above-mentioned components, especially the components in the first embodiment, allows the compressed air bag 6 to introduce moisture into the absorbent cotton 15 when it is continuously contracted, and the water vapor in the absorbent cotton 15 is dried by the continuously flowing airflow, which has a moisture-proof effect and improves the overall use effect.

[0038] Combination Figure 2 and Figure 3 As shown, in the above embodiment,

[0039] Specifically, the outer side surface of the inner transport pipe body 2 is evenly connected with multiple groups of embedded sliders 14. The use of multiple groups of embedded sliders 14 and embedded gaskets 3 improves the overall installation convenience of the PIR cold insulation pipe shell. The inner transport pipe body 2 is embedded and clamped with the embedded gaskets 3 through multiple groups of embedded sliders 14.

[0040] The working principle and use process of the utility model are as follows: first, during use, when the inner conveying tube body 2 is used for material conveying, the vibration generated causes the prefabricated PIR cold-insulating tube shell to vibrate as a whole, so that the compressed air bag 6 provided in the installation slot 9 opened in the thermal insulation support layer 4 is squeezed and continuously compressed by the extrusion arc sheet 13, and the gas is introduced into the interior of the air bag circle 5 through the air guide tube 10, the through hole 13, the compression hole 11 and the air injection hole 8. The continuous contraction mode makes the gas in the air bag circle 5 form a quantitative amount, maintains the overall tightness, and does not require continuous artificial inflation, thereby improving the overall durability and the overall convenience of use. Secondly, during use, through the continuous contraction of the above-mentioned components, especially the compressed air bag 6, moisture is also introduced into the absorbent cotton 15 in the compressed air bag 6. In the process of continuous compression, the airflow also continuously dries the water vapor in the absorbent cotton 15, which also plays a partial moisture-proof effect and improves the overall use effect.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A novel prefabricated PIR cold-insulation tube shell, comprising a PIR outer cold-insulation shell (1) and an inner transport tube body (2), wherein an air bag ring (5) is provided between the PIR outer cold-insulation shell (1) and the inner transport tube body (2), characterized in that: The outer side of the inner transport tube body (2) is sleeved with an embedded gasket (3), the outer side of the embedded gasket (3) is connected to one side of the airbag ring (5), a heat-insulating support layer (4) is filled between the airbag ring (5) and the PIR outer cold-insulating shell (1), a plurality of groups of mounting slots (9) are evenly arranged between the heat-insulating support layers (4), the interiors of the plurality of groups of mounting slots (9) are each provided with a compressed airbag (6), the upper and lower ends of the compressed airbag (6) are connected with two groups of extruded arc sheets (7), the upper and lower end surfaces of the compressed airbag (6) are symmetrically provided with compression holes (11), the middle parts of the two groups of extruded arc sheets (7) are each provided with a through hole (13), the inner side of the PIR outer cold-insulating shell (1) is embedded with a plurality of air guide tubes (10), the outer side surface of the airbag ring (5) is provided with a plurality of gas injection holes (8) corresponding to the plurality of mounting slots (9), and the interior of the compressed airbag (6) is filled with absorbent cotton (15).

2. A novel prefabricated PIR cold insulation pipe shell according to claim 1, characterized in that: The through hole (13), the gas injection hole (8) and the compression hole (11) are all correspondingly connected to each other.

3. A novel prefabricated PIR cold insulation pipe shell according to claim 1, characterized in that: The two groups of extruded arc sheets (7) are respectively in contact with the inner surface of the PIR outer cold-insulating shell (1) and the outer surface of the airbag ring (5).

4. A novel prefabricated PIR cold insulation pipe shell according to claim 1, characterized in that: One extended end of the air guide tube (10) is in communication with the through hole (13), and the other end extends through the outer end of the PIR outer cold-insulating shell (1).

5. A novel prefabricated PIR cold insulation pipe shell according to claim 1, characterized in that: The air guide pipe (10) is located at the extended end of the PIR outer cold preservation shell (1) and is filled with a filtering and adsorption filling layer (12).

6. A novel prefabricated PIR cold insulation pipe shell according to claim 1, characterized in that: The outer side surface of the inner conveying pipe body (2) is evenly connected to a plurality of groups of embedded sliding blocks (14).

7. A novel prefabricated PIR cold insulation pipe shell according to claim 6, characterized in that: The inner conveying pipe body (2) is embedded and clamped with the embedded gasket (3) through multiple groups of embedded sliding blocks (14).

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