Heating and ventilation pipe assembly structure for heating and ventilation engineering

Abstract

The utility model discloses a heating and ventilation pipe assembly structure for heating and ventilation engineering, which comprises assembly sections, and each assembly section comprises a sleeve fixing frame. The fixing frame comprises a connector and a hanging frame, and sleeving parts are arranged on the two sides of the connector; the inner diameter of the sleeve is larger than the outer diameter of a heating and ventilation pipe to be assembled, a plurality of protruding ribs protruding towards the inner side are formed on the inner pipe wall of the sleeve, and the protruding ribs are evenly arranged on the annular face of the inner pipe wall of the sleeve. A heat preservation material layer is further formed on the inner pipe wall of the sleeve to serve as an inner pipe face lining material; the heating and ventilation pipe to be assembled is concentrically assembled in the sleeve, and in the assembling state, the protruding ribs abut against the outer pipe wall of the heating and ventilation pipe to be assembled. A gap is reserved between the surface of the heat preservation material layer and the outer pipe wall of the heating and ventilation pipe to be assembled, and the gap is filled with foaming heat preservation glue. The heating and ventilation pipeline has the advantages of being convenient to install, good in heat preservation effect, high in attractiveness and the like, and solves the problems that a traditional heating and ventilation pipeline is poor in heat preservation performance and unreasonable in installation and fixing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly of heating and ventilation engineering, in particular to a heating and ventilation pipe assembly structure for heating and ventilation engineering. Background Art

[0002] The full name of HVAC in the subject classification is heating, gas supply, ventilation and air conditioning engineering, which specifically includes three aspects: heating, ventilation and air conditioning; HVAC installation needs to supply heat energy to the building to ensure that the indoor temperature is higher than the external environment. To achieve this goal, HVAC pipes are usually used for gas transportation. However, the HVAC pipes currently widely used are relatively simple in structure and have poor thermal insulation performance, which leads to significant heat loss during the transmission process.

[0003] In the current HVAC system application, in order to optimize the thermal efficiency of the medium in the pipeline, effective measures must be taken to reduce heat loss. This is to prevent the increase in energy consumption caused by too low medium temperature, ensure the stable and efficient operation of the system, and avoid potential impact on use under extreme conditions. To this end, HVAC pipes are usually covered with insulation sleeves. However, the insulation sleeves are easily damaged by erosion such as rain in the external environment, which not only affects its thermal insulation performance, but also may cause damage to the outer wall of the HVAC pipe due to corrosion. In addition, when installing HVAC pipes, U-shaped plastic clips, wire bundling or pipe clamps are often used for fixing. These fixing methods are not only aesthetically pleasing, but also have poor protection for HVAC pipes / insulation sleeves in the fixed part, which can easily cause local damage to HVAC pipes / insulation sleeves, thereby affecting the insulation effect and normal use of HVAC pipes. At the same time, these fixing methods will also increase the difficulty and time cost of maintenance work during subsequent maintenance and management. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a HVAC pipe assembly structure for HVAC engineering, which can be used to hoist and fix the position of the HVAC pipe to solve the defects in the above technical background.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] A HVAC pipe assembly structure for HVAC engineering, comprising a plurality of assembly sections, wherein a single assembly section comprises a sleeve and a fixing frame assembled at both ends of the sleeve;

[0007] The fixing frame includes a connector and a hanging frame. The connector is a half-joint structure. A sleeve portion is provided on both sides of the connector. The sleeve portion has two inner and outer annular staggered steps. The inner step matches the end face size of the HVAC pipe to be assembled so as to assemble the HVAC pipe; the outer step matches the end face size of the sleeve so as to assemble the sleeve;

[0008] The inner diameter of the sleeve is larger than the outer diameter of the HVAC pipe to be assembled, and a plurality of convex ribs protruding inward are formed on the inner tube wall of the sleeve, and the convex ribs are evenly arranged on the annular surface of the inner tube wall of the sleeve; a thermal insulation material layer is also formed on the inner tube wall of the sleeve as an inner tube surface lining material; the HVAC pipe to be assembled is concentrically assembled in the sleeve, and in the assembled state, the convex ribs rest against the outer tube wall of the HVAC pipe to be assembled; a gap is left between the surface of the thermal insulation material layer and the outer tube wall of the HVAC pipe to be assembled, and the gap is filled with foamed thermal insulation glue.

[0009] As a further limitation, the hanging bracket includes a connecting rod and a hanging part, the bottom of the connecting rod is fixedly connected to the connector, and the hanging part is formed on the top; the connecting rod is a length-adjustable structure, and the hanging part is hung and assembled on the building ceiling by means of expansion bolts or connecting pre-embedded structural parts.

[0010] As a further limitation, the inner cavity of the connector between the sleeve portions on both sides matches the size of the HVAC pipe to be assembled.

[0011] As a further limitation, the connector is formed with a sealing gasket at the inner step edge and the assembly position of the HVAC pipe to be assembled to ensure the sealing of the connection between the HVAC pipe and the connector.

[0012] As a further limitation, the connector has an axial margin reserved at the outer step position for sleeve assembly.

[0013] As a further limitation, the connector is formed with a group of threaded holes on the annular surface at the corresponding outer step position; the sleeve is formed with another matching group of threaded holes on the outer edge at the corresponding tube end surface position; the sleeve is fastened and assembled on the connector by threaded fasteners after the two groups of threaded holes are aligned.

[0014] As a further limitation, the annular gap between the inner diameter of the sleeve and the outer diameter of the HVAC pipe to be assembled has a ring diameter of 1 / 5 to 1 / 3 of the outer diameter of the HVAC pipe to be assembled, and the thickness of the insulation material layer accounts for 40 to 60% of the ring diameter.

[0015] As a further limitation, the thermal insulation material used in the thermal insulation material layer is one of polystyrene, glass wool, mineral wool and rock wool.

[0016] As a further limitation, the thermal insulation material layer is lined with a tin foil layer on the surface of the inner side of the corresponding tube.

[0017] As a further limitation, the foam insulation adhesive is one of polyurethane foam adhesive, polyethylene foam adhesive, and polystyrene foam adhesive.

[0018] Beneficial effects: The utility model discloses a HVAC pipe assembly structure for HVAC engineering, which can conveniently assemble the HVAC pipe in the sleeve by designing a special Hough-joint structure connector. It can flexibly adapt to different installation environments and requirements, improve installation efficiency and aesthetics, and can effectively avoid local damage to the HVAC pipe / insulation sleeve, and extend the service life of the HVAC pipe. At the same time, the structural setting of the sleeve parts at both ends of the connector ensures the sealing of the connection between the HVAC pipe and the connector. The thermal insulation material layer and the foam insulation glue can further enhance the thermal insulation effect of the HVAC pipe, reduce heat loss, and ensure the stable and efficient operation of the HVAC system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.

[0020] Among them: 1. casing; 2. ribs; 3. HVAC pipe; 4. insulation material layer; 5. foam insulation glue; 6. sealing gasket; 7. connecting rod; 8. threaded assembly seat; 9. connector; 10. threaded fastener; 11. threaded hole group. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0022] See also Figure 1 A preferred embodiment of a HVAC pipe assembly structure for HVAC engineering is provided. In this embodiment, the HVAC pipe assembly structure for HVAC engineering is composed of a plurality of assembly sections, each assembly section includes a sleeve 1 and fixing frames fixed at both ends of the sleeve. When the entire HVAC pipe is assembled in the straight pipe section, multiple assembly sections are used to splice the ends together, and two adjacent assembly sections share the same fixing frame at the docking portion.

[0023] The fixing frame of the present embodiment is composed of a connector 9 and a hanging frame, wherein the connector 9 is designed as a half-joint structure, including a detachable upper structural member and a lower structural member, wherein the upper structural member and the lower structural member are semi-cylindrical structures that are relatively positioned, similar to other half-joint structures, and can be spliced ​​on opposite surfaces, and after splicing, they are fastened at the outer ear plate position by threaded fasteners; and in order to ensure the closedness of the inner cavity after splicing, the upper structural member and the lower structural member are structurally sealed at the joint position using sealing members.

[0024] The connector 9 is formed with a threaded assembly seat 8 on the top surface of the upper structural member, and a threaded screw hole is formed on the top surface of the threaded assembly seat 8; and the hanging bracket used in conjunction with the connector 9 includes a connecting rod 7 and a hanging portion, and the bottom of the connecting rod 7 has an external threaded surface, and the connector 9 is assembled and connected to the connecting rod 7 in the hanging bracket through the threaded screw hole. In order to ensure the stability and safety of the HVAC pipe and adapt to different installation heights and distance requirements, the length of the connecting rod 7 is adjustable, and the hanging portion is welded to the top of the connecting rod 7 to achieve a fixed connection between the HVAC pipe assembly structure and the building structure. For example, in the present embodiment, the hanging portion can be firmly fixed to the ceiling of the building by expansion bolts or by connecting pre-embedded structural parts to ensure the stability of the entire assembly structure.

[0025] The middle inner cavity part in the sleeve 1 matches the size of the HVAC pipe 3 to be assembled, so that the medium in the HVAC pipe 3 can flow more smoothly. The sleeve 1 is provided with a sleeve connection part on both sides of the middle inner cavity part, and the sleeve connection part has two inner and outer annular offset steps, and the inner step part matches the end face size of the HVAC pipe 3 to be assembled, so as to assemble the HVAC pipe and ensure that the HVAC pipe 3 can be tightly assembled in the connector 9 to prevent gas leakage or liquid leakage; and the outer step is formed on the outer surface of the connection part, which matches the end face size of the sleeve 1, so as to assemble the sleeve 1.

[0026] In this embodiment, the connector 9 is provided with a sealing gasket 6 at the assembly position between the inner step edge of the sleeve portion and the HVAC pipe 3. The sealing gasket 6 is made of a high temperature resistant and corrosion resistant material to ensure the sealing of the connection between the HVAC pipe 3 and the connector 9. In this way, even if pressure changes occur during the operation of the HVAC system, leakage can be effectively prevented at the connection between the HVAC pipe 3 and the connector 9.

[0027] In order to ensure a firm connection between the sleeve 1 and the connector 9, the sleeve 1 is also formed with a threaded hole group 11 on the outer edge of the corresponding pipe end position, and the connector 9 is formed with another matching threaded hole group on the annular surface at the corresponding outer step position. After the two groups of threaded hole groups are aligned, the threaded fasteners 10 are used to fasten and assemble on the connector 9, thereby ensuring a firm and reliable connection between the sleeve 1 and the connector 9. In this embodiment, in order to further improve the thermal insulation effect of the HVAC pipe 3, the connector 9 reserves an axial margin for the assembly of the sleeve 1 at the outer step position; when the sleeve 1 is assembled to the outer step position of the connector 9, due to the existence of the axial margin, the sleeve 1 can have a certain expansion and contraction space to adapt to the thermal expansion and contraction phenomenon that may occur in the operation of the HVAC pipe 3; and in order to match the axial margin of the sleeve 1, the threaded hole group 11 correspondingly set on the sleeve 1 needs to be set as an oblong hole, so as to achieve the matching and fastening installation of the threaded fastener 10 on the sleeve 1 at the axial margin of the connector 9.

[0028] The sleeve 1 has an inner diameter greater than the outer diameter of the HVAC pipe 3. This difference leaves an annular gap between the inner diameter of the sleeve 1 and the outer diameter of the HVAC pipe 3. In the present embodiment, the annular gap has an annular diameter of 1 / 4 of the outer diameter of the HVAC pipe 3. A plurality of convex ribs 2 are arranged on the inner tube wall of the sleeve 1. These convex ribs 2 are evenly arranged on the annular surface of the inner tube wall of the sleeve 1. After the HVAC pipe 3 is assembled in the sleeve 1, the convex ribs 2 are pressed against the outer tube surface of the HVAC pipe 3. The arrangement of the convex ribs 2 can effectively prevent the movement and vibration of the HVAC pipe in the sleeve, further improve the stability of the HVAC pipe 3 in the sleeve 1, provide anti-vibration and anti-impact protection for the HVAC pipe 3, and can also reduce the displacement and friction caused by thermal expansion and contraction of the HVAC pipe 3.

[0029] In addition, in order to further improve the thermal insulation effect of the HVAC pipe 3, the thermal insulation material layer 4 is paved in the annular gap between the casing 1 and the HVAC pipe 3, and the ribs 2 are staggered during paving. The thermal insulation material layer 4 is attached to the inner wall of the casing 1 through an adhesive on the inner surface, and one of polystyrene, glass wool, mineral wool, and rock wool with good thermal insulation and corrosion resistance can be selected for molding. At the same time, the surface of the thermal insulation material layer is lined with a tin foil layer for interface sealing. At the same time, the gap space between the thermal insulation material layer 4 and the HVAC pipe 3 in the annular gap is filled with a foamed thermal insulation glue 5, which is one of polyurethane foam glue, polyethylene foam glue, and polystyrene foam glue, and is filled and molded by injection; the excellent thermal insulation and filling properties of the foamed thermal insulation glue 5 cooperate with the thermal insulation material layer 4 to achieve a better thermal insulation effect in the HVAC pipe assembly structure, which is beneficial to improving the overall energy efficiency of the HVAC system. The thickness of the thermal insulation material layer 4 accounts for 50% of the ring diameter. Such a design can reduce the weight of the assembly structure as much as possible and reduce material costs while ensuring the thermal insulation effect.

[0030] In summary, the HVAC pipe assembly structure of this embodiment realizes the stable assembly and efficient insulation of the HVAC pipe 3 by designing a special half-joint structure connector 9, combining the sleeve 1, the rib 2, the insulation material layer 4 and the foam insulation glue 5 and other components, thereby improving the insulation effect of the HVAC pipe, reducing heat loss, and ensuring the stable and efficient operation of the HVAC system. This assembly structure can not only adapt to different installation environments and requirements, improve installation efficiency and aesthetics, but also effectively avoid local damage to the HVAC pipe / insulation sleeve and extend the service life of the HVAC pipe.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the scope of protection of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the scope of protection defined by the claims attached to this application.

Claims

1. A HVAC pipe assembly structure for HVAC engineering, characterized in that: It includes several assembly sections, each of which includes a sleeve and a fixing frame assembled at both ends of the sleeve; The fixing frame includes a connector and a hanging frame. The connector is a half-joint structure. A sleeve portion is provided on both sides of the connector. The sleeve portion has two inner and outer annular staggered steps. The inner step matches the end face size of the HVAC pipe to be assembled so as to assemble the HVAC pipe; the outer step matches the end face size of the sleeve so as to assemble the sleeve; The inner diameter of the sleeve is larger than the outer diameter of the HVAC pipe to be assembled, and a plurality of convex ribs protruding inward are formed on the inner pipe wall of the sleeve, and the convex ribs are evenly arranged on the annular surface of the inner pipe wall of the sleeve; a thermal insulation material layer is also formed on the inner pipe wall of the sleeve as an inner pipe surface lining material; the HVAC pipe to be assembled is concentrically assembled in the sleeve, and in the assembled state, the convex ribs are against the outer pipe wall of the HVAC pipe to be assembled; A gap is left between the surface of the thermal insulation material layer and the outer pipe wall of the HVAC pipe to be assembled, and the gap is filled with foamed thermal insulation glue.

2. The HVAC pipe assembly structure for HVAC engineering according to claim 1 is characterized in that: The hanging bracket includes a connecting rod and a hanging part. The bottom of the connecting rod is fixedly connected to the connector, and the top is formed with the hanging part. The connecting rod is a length-adjustable structure, and the hanging part is hung and assembled on the building ceiling by means of expansion bolts or connecting pre-embedded structural parts.

3. The HVAC pipe assembly structure for HVAC engineering according to claim 1 is characterized in that: The inner cavity of the connector between the sleeve parts on both sides matches the size of the HVAC pipe to be assembled.

4. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The connector is formed with a sealing gasket at the inner step edge and the assembly position of the HVAC pipe to be assembled to ensure the sealing of the connection between the HVAC pipe and the connector.

5. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The connector has an axial margin reserved at the outer step position for sleeve assembly.

6. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The connector is formed with a threaded hole group on the annular surface at the corresponding outer step position; the sleeve is formed with another matching threaded hole group on the outer edge at the corresponding tube end surface position; the sleeve is fastened and assembled on the connector by threaded fasteners after the two threaded hole groups are aligned.

7. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The annular gap between the inner diameter of the sleeve and the outer diameter of the HVAC pipe to be assembled has a ring diameter of 1 / 5 to 1 / 3 of the outer diameter of the HVAC pipe to be assembled, and the thickness of the insulation material layer accounts for 40 to 60% of the ring diameter.

8. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The thermal insulation material used in the thermal insulation material layer is one of polystyrene, glass wool, mineral wool and rock wool.

9. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The heat-insulating material layer is lined with a tin paper layer on the surface of the inner side of the corresponding pipe.

10. The HVAC pipe assembly structure for HVAC engineering according to claim 1, characterized in that: The foaming thermal insulation glue is one of polyurethane foaming glue, polyethylene foaming glue and polystyrene foaming glue.

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