Heating and ventilation pipeline heat preservation structure

Abstract

The utility model discloses a heating and ventilation pipeline heat preservation structure, and relates to the technical field of heating and ventilation pipeline heat preservation. The connecting device structurally comprises a straight pipe outer wrapping pipe, a right-angle connector outer wrapping pipe and a connecting and positioning connector. The straight pipe wrapping pipe comprises a first semicircular pipe and a second semicircular pipe which are spliced into a whole; the end of the straight pipe outer wrapping pipe is connected with the connecting and positioning connector in an inserted mode. The right-angle connector wrapping pipe comprises two right-angle semicircular pipes. The end of the right-angle connector outer wrapping pipe is connected with the connecting and positioning connector in an inserted mode. And a polyurethane foaming layer is filled between the straight pipe wrapping pipe and the heating and ventilation pipeline. The heat preservation shell is formed outside the heating and ventilation pipeline, polyurethane foaming liquid is injected into the heat preservation shell to form a uniform and compact heat preservation layer, heat energy loss is effectively reduced, temperature stability of the heating and ventilation pipeline is guaranteed, and therefore the overall heat preservation effect is enhanced; the heating and ventilation pipeline heat preservation structure adopts a splicing mode and can be quickly assembled, and compared with a traditional glue brushing and pasting method, the construction speed is greatly increased, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating and ventilation pipeline insulation, and particularly relates to a heating and ventilation pipeline insulation structure. Background Art

[0002] For the heat preservation device in heating and ventilation engineering, usually after the heating and ventilation pipeline passes the acceptance, the separated heat preservation sleeve is installed with glue paste for the installation of the heat preservation layer. Although the material cost is low, the efficiency of glue brushing and painting is relatively low. Along with the cracking of the glue layer, the heat preservation sleeve gradually detaches from the heating and ventilation pipeline, and the actual heat preservation effect gradually weakens over time, resulting in waste of energy. At the same time, it brings higher subsequent maintenance costs. In addition, the process of glue brushing and painting is cumbersome and requires waiting for the glue to dry, which greatly prolongs the installation time of the entire heat preservation layer; the manual painting and pasting methods are difficult to ensure the regularity and consistency of the appearance, affecting the aesthetic effect of the overall project; the extensive use of glue not only has a certain impact on the environment but also does not meet the requirements of modern green buildings. To overcome the above defects, the utility model provides a heating and ventilation pipeline insulation structure. Content of the Utility Model

[0003] The purpose of the utility model is to provide a heating and ventilation pipeline insulation structure, which is quickly assembled by splicing the straight pipe outer sleeve, the right-angle joint outer sleeve and the connecting and positioning joint, without using a large amount of glue, improving the construction efficiency and ensuring the stability and durability of the heat preservation effect.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a heating and ventilation pipeline insulation structure, including a straight pipe outer sleeve, a right-angle joint outer sleeve and a connecting and positioning joint; the straight pipe outer sleeve includes a first semi-circular pipe and a second semi-circular pipe spliced together; the end of the straight pipe outer sleeve is inserted into the connecting and positioning joint; the right-angle joint outer sleeve includes two right-angle semi-circular pipes; the end of the right-angle joint outer sleeve is inserted into the connecting and positioning joint; a polyurethane foam layer is filled between the straight pipe outer sleeve and the heating and ventilation pipeline, and a polyurethane foam layer is filled between the right-angle joint outer sleeve and the right-angle joint of the heating and ventilation pipeline.

[0006] As a preferred technical solution of the utility model, a plurality of first through holes are axially arranged on the first semi-circular pipe; a row of arc positioning plates are axially fixed on the inner walls of the two connecting ends of the first semi-circular pipe and the second semi-circular pipe.

[0007] As a preferred technical solution of the utility model, a second through hole is respectively arranged on the outer walls of the two ends of the right-angle semi-circular pipe.

[0008] As a preferred technical solution of the present utility model, the connecting and positioning joint includes two semi-circular joints; two handle-barred threaded rods are threadedly penetrated and installed on each of the semi-circular joints; the two semi-circular joints are connected into one body by two steel bands.

[0009] As a preferred technical solution of the present utility model, the semi-circular joint includes a semi-circular arc plate; two arc-shaped grooves for cooperating with the steel band are provided on the outer arc surface of the semi-circular arc plate; semi-circular arc slots are symmetrically provided at both axial ends of the semi-circular arc plate; two threaded through holes for threaded connection and cooperation with the handle-barred threaded rods are provided on the outer arc surface of the semi-circular arc plate, and the two threaded through holes are vertically arranged.

[0010] The present utility model has the following beneficial effects:

[0011] 1. By forming a thermal insulation shell outside the HVAC pipeline and injecting polyurethane foaming liquid inside to form a uniform and dense thermal insulation layer, the present utility model effectively reduces heat energy loss, ensures the temperature stability of the HVAC pipeline, and thus enhances the overall thermal insulation effect.

[0012] 2. The HVAC pipeline thermal insulation structure of the present utility model adopts a splicing method and can be quickly assembled, greatly improving the construction speed and efficiency compared with the traditional glue brushing and pasting method.

[0013] 3. The present utility model avoids the problem of the thermal insulation sleeve detaching due to the cracking of the glue layer, ensures the stability and durability of the thermal insulation effect, thus reducing the maintenance cost and prolonging the service life of the entire thermal insulation structure. The use of polyurethane foaming material is not only widely adopted due to its good thermal insulation performance, but also its environmental protection characteristics meet the current requirements for green building materials. In addition, reducing energy waste and lowering the subsequent maintenance cost have obvious cost benefits in the long run.

[0014] 4. The design of the connecting and positioning joint of the present utility model makes the entire thermal insulation structure easy to adjust and maintain. Especially when a certain part needs to be repaired or replaced, this design provides greater flexibility and convenience.

[0015] 5. Compared with the pasted thermal insulation sleeve, the thermal insulation structure provided by the present utility model is more tidy and beautiful as a whole. Due to its structured and standardized design, the appearance after installation is more regular and unified.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of the HVAC pipeline insulation structure of the present utility model;

[0019] Figure 2 Partial schematic diagram during the implementation of the present utility model;

[0020] Figure 3 Structural schematic diagram of the first semi-circular pipe;

[0021] Figure 4 Structural schematic diagram of the second semi-circular pipe;

[0022] Figure 5 Structural schematic diagram of the right-angle semi-circular pipe;

[0023] Figure 6 Structural schematic diagram of the connection positioning joint;

[0024] Figure 7 Structural schematic diagram of the semi-circular ring joint and the threaded rod with a handle.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1 - Outer pipe of the straight pipe, 2 - Outer pipe of the right-angle joint, 3 - Connection positioning joint, 4 - Polyurethane foam layer, 11 - First semi-circular pipe, 12 - Second semi-circular pipe, 111 - First through hole, 112 - Arc positioning plate, 21 - Right-angle semi-circular pipe, 211 - Second through hole, 31 - Semi-circular ring joint, 32 - Threaded rod with a handle, 33 - Steel strip hoop, 311 - Semi-circular arc plate, 312 - Arc groove, 313 - Semi-circular arc slot, 314 - Threaded through hole. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Specific embodiment one:

[0029] Please refer to Figures 1-7As shown in the figure, the utility model is a heat supply and ventilation pipe insulation structure, which includes three main components: a straight pipe outer casing 1, a right-angle joint outer casing 2, and a connecting and positioning joint 3. They form an insulation outer shell structure outside the heat supply and ventilation pipe. Polyurethane foaming liquid is injected into the outer shell for filling. After foaming, a dense insulation layer is formed, which has an extremely low thermal conductivity to ensure the stability of the temperature of the heat supply and ventilation pipe.

[0030] The straight pipe outer casing 1 includes a first semi-circular pipe 11 and a second semi-circular pipe 12 spliced together. Along the axial direction of the inner walls of the two connecting ends of the first semi-circular pipe 11 and the second semi-circular pipe 12, a row of arc-shaped positioning plates 112 are fixed. The first semi-circular pipe 11 and the second semi-circular pipe 12 can be quickly butted. After butting, the end of the straight pipe outer casing 1 is inserted into the connecting and positioning joint 3.

[0031] The right-angle joint outer casing 2 includes two right-angle semi-circular pipes 21. The end of the right-angle joint outer casing 2 is inserted into the connecting and positioning joint 3.

[0032] The combination of the straight pipe outer casing 1, the right-angle joint outer casing 2, and the connecting and positioning joint 3 can be quickly assembled outside the heat supply and ventilation pipe to form an insulation outer shell, which is more beautiful than the integrally pasted insulation sleeve and has a faster construction speed.

[0033] Polyurethane foaming liquid is injected between the straight pipe outer casing 1 and the heat supply and ventilation pipe to form a polyurethane foaming layer 4, and polyurethane foaming liquid is also injected between the right-angle joint outer casing 2 and the right-angle joint of the heat supply and ventilation pipe to form a polyurethane foaming layer 4. After injecting polyurethane foaming liquid into the insulation outer shell formed by the straight pipe outer casing 1, the right-angle joint outer casing 2, and the connecting and positioning joint 3 outside the heat supply and ventilation pipe, a stable insulation structure is formed.

[0034] In order to facilitate the unified injection of polyurethane foaming liquid after the insulation outer shell formed by the straight pipe outer casing 1, the right-angle joint outer casing 2, and the connecting and positioning joint 3 outside the heat supply and ventilation pipe, a number of first through holes 111 are axially opened on the first semi-circular pipe 11. A second through hole 211 is respectively opened on the outer walls of the two end parts of the right-angle semi-circular pipe 21.

[0035] The connecting and positioning joint 3 functions to position and adjust the entire heat preservation housing. The structure of the connecting and positioning joint 3 specifically includes two semi-circular joints 31. Two handle-barred threaded rods 32 are installed through the threads on each semi-circular joint 31. The two semi-circular joints 31 are connected into one body by two steel strip hoops 33. The distance between the semi-circular joint 31 and the HVAC pipeline can be adjusted by adjusting the two handle-barred threaded rods 32 so that the formed polyurethane foam layer 4 is uniform. The semi-circular joint 31 includes a semi-circular arc plate 311. Two arc grooves 312 matched with the steel strip hoops 33 are arranged on the outer arc surface of the semi-circular arc plate 311. Semi-circular slots 313 are symmetrically arranged at both axial ends of the semi-circular arc plate 311. Two threaded through holes 314 that are threadedly connected and matched with the handle-barred threaded rods 32 are arranged on the outer arc surface of the semi-circular arc plate 311, and the two threaded through holes 314 are vertically arranged.

[0036] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A HVAC pipe insulation structure, characterized in that: It comprises a straight tube outer covering tube (1), a right angle joint outer covering tube (2) and a connecting positioning joint (3); The straight tube outer tube (1) comprises a first semicircular tube (11) and a second semicircular tube (12) which are spliced ​​together as one; the end of the straight tube outer tube (1) is plugged into the connecting positioning joint (3); The right-angle joint outer tube (2) comprises two right-angle semicircular tubes (21); the end of the right-angle joint outer tube (2) is plugged into the connection positioning joint (3); A polyurethane foam layer (4) is filled between the straight pipe outer covering pipe (1) and the HVAC pipe, and a polyurethane foam layer (4) is filled between the right-angle joint outer covering pipe (2) and the right-angle joint of the HVAC pipe.

2. The HVAC pipe insulation structure according to claim 1, characterized in that: The first semicircular tube (11) is provided with a plurality of first through holes (111) along its axial direction; and a row of arc positioning plates (112) are fixed along the axial direction to the inner walls of the two connecting ends of the first semicircular tube (11) and the second semicircular tube (12).

3. The HVAC pipe insulation structure according to claim 1, characterized in that: A second through hole (211) is respectively formed on the outer walls of the two ends of the right-angled semicircular tube (21).

4. The HVAC pipe insulation structure according to claim 1, characterized in that: The connecting and positioning joint (3) comprises two semi-circular ring joints (31); two threaded rods with handles (32) are installed through threads on each of the semi-circular ring joints (31); and the two semi-circular ring joints (31) are connected as a whole via two steel hoops (33).

5. The HVAC pipe insulation structure according to claim 4, characterized in that: The semicircular ring joint (31) comprises a semicircular plate (311); the outer arc surface of the semicircular plate (311) is provided with two arc grooves (312) that cooperate with the steel band hoop (33); the semicircular plate (311) has semicircular slots (313) symmetrically formed at two axial ends; the outer arc surface of the semicircular plate (311) is provided with two threaded through holes (314) that are threadedly connected with the handle threaded rod (32), and the two threaded through holes (314) are arranged vertically.

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