Heat insulation structure of heat distribution pipeline and laying method

Abstract

The invention discloses a heat distribution pipeline heat preservation structure and a laying method, and relates to the technical field of heat distribution pipeline heat preservation, the heat distribution pipeline heat preservation structure comprises a heat distribution pipeline, a first heat preservation layer, a second heat preservation layer, a first protection shell and a second protection shell, a clamping assembly used for butt joint is arranged at the position, close to the butt joint position, of the first protective shell and the second protective shell, the first heat preservation layer and the second heat preservation layer are both in a semi-cylinder shape and are in butt joint to form a cylindrical heat preservation layer, and a sealing assembly is arranged at the butt joint position of the first heat preservation layer and the second heat preservation layer. According to the heat preservation structure, installation work can be more convenient, the installation efficiency can be improved, the purpose of fourth sealing can be achieved, and therefore the overall heat preservation performance of the heat preservation structure is effectively improved, the heat preservation layer butt joint units between every two adjacent cylindrical heat preservation layers can be connected more tightly, and the service life of the heat preservation structure is prolonged. Therefore, the sealing performance of the butt joint of the ends of the heat preservation structure is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thermal pipe insulation, and in particular to a thermal pipe insulation structure and a laying method. Background Art

[0002] Thermal pipelines, also known as thermal pipe networks, are a type of pressure pipeline. Their main function is to transport the heat energy produced by boilers to indoor heating equipment through heat media such as steam and hot water to meet the needs of production and life. Thermal pipelines are widely used in many fields. With the development of society, thermal pipelines are becoming more and more indispensable in modern society. They ensure the effective transmission and utilization of thermal energy and meet people's production and life needs.

[0003] Thermal pipes need to be insulated during use, otherwise the temperature of steam and hot water will be lost during transportation, resulting in the temperature not meeting the requirements when in use. In order to meet the demand, they need to be heated again to meet the temperature requirements, which will consume a lot of energy and cause energy waste;

[0004] Therefore, insulation is a key measure to ensure the normal operation of pipelines and efficient transfer of heat energy. Thermal pipeline insulation usually includes the setting of insulation layer and protective layer. During the construction process, wrapping and installing suitable materials on the pipeline surface can play a certain insulation role.

[0005] A thermal pipe insulation structure disclosed in a patent document with a prior art publication number of "CN 221034666 U" includes components such as a protective shell, an insulation structure and a fixing structure. Although the insulation structure effectively solves the problem that the pipe insulation structure on the current market is inconvenient to fix on the heating pipe during laying, and when the fixation is not firm, the pipe insulation structure is prone to fall off the heating pipe, but the insulation structure still uses a large number of bolts for connection and fixation. Therefore, multiple bolts need to be repeatedly tightened during installation, which is bound to result in a long time required for installation and fixation, and the installation efficiency is still low. In addition, the insulation structure is installed in a splicing manner, and there will be a certain butt joint at the joint after the installation is completed, resulting in the sealing performance of the joint being far less than that of other parts, which will also have a certain impact on the overall sealing ability of the insulation structure. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a thermal pipeline insulation structure and a laying method, which solves the problems raised in the background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thermal pipe insulation structure, comprising a thermal pipe, a first thermal insulation layer and a second thermal insulation layer covering the outside of the thermal pipe, and a first protective shell and a second protective shell respectively fixed to the outside of the first thermal insulation layer and the second thermal insulation layer, the first protective shell and the second protective shell are both semi-cylindrical and butted together to form a cylindrical protective shell, a butt clamping assembly is provided at a position close to the butt joint on the first protective shell and the second protective shell, the first thermal insulation layer and the second thermal insulation layer are both semi-cylindrical and butt jointed to form a cylindrical thermal insulation layer, and a sealing assembly is provided at the butt joint between the first thermal insulation layer and the second thermal insulation layer.

[0010] Preferably, the first protective shell and the second protective shell are both provided with folded edges in the length direction at positions close to the docking. The docking clamping components are in two groups and are respectively provided on two adjacent folded edges and used to clamp and fix the two adjacent folded edges.

[0011] Preferably, the docking clamping assembly includes a first clamping rod, a second clamping rod, a clamping force assembly and a tensioning and fixing assembly. The first clamping rod is cylindrical and is arranged on the lower folded edge along the length direction of the folded edge, and a plurality of connecting parts are sleeved on the outside of the first clamping rod. The shape of the connecting parts is annular, and a plurality of through grooves matching the connecting parts are opened on the outside of the folded edge. The connecting parts are inserted into the through grooves. The second clamping rod is arranged on the upper folded edge along the length direction of the folded edge, and the second clamping rod is inserted into the inside of the connecting part. The clamping force assembly is arranged between the connecting part and the second clamping rod, and the tensioning and fixing assembly is arranged on the upper folded edge and connected to the second clamping rod.

[0012] Preferably, the clamping force assembly includes a plurality of sliders and a plurality of top blocks, wherein the plurality of top blocks are respectively fixed to the upper portions of a plurality of connecting members, the sliders are shaped like a wedge with the inclined surfaces facing obliquely upward, the plurality of sliders are fixed to the second clamping rod in sequence, and the plurality of sliders are respectively in contact with the top blocks, and the contact portions between the top blocks and the sliders are provided with an oblique angle.

[0013] Preferably, the tightening and fixing assembly includes a connecting block, a bolt, a first nut and a second nut. The connecting block is fixed to one side of the second clamping rod, and a through hole matching the bolt is opened on the connecting block. The bolt is inserted into the through hole. The first nut is fixed to the side of the folded edge away from the connecting block, and the second nut is fixed to the outside of the thermal pipe.

[0014] Preferably, an extrusion component for extruding the joint between the first protective shell and the second protective shell is provided, and the extrusion component includes a long strip of pressure strip, and the strip of pressure strip is arranged on the second protective shell close to the first protective shell, and the long strip of pressure strip is arranged along the length direction of the second protective shell, and the cross-sectional shape of the pressure strip is arc-shaped or bent, and the arc-shaped or bent protrusion faces the joint between the first thermal insulation layer and the second thermal insulation layer, and the first thermal insulation layer is provided with a pressing groove connected to the pressure strip near the joint.

[0015] Preferably, the sealing assembly includes a sealing strip, which is arranged on the docking surface of the second thermal insulation layer along the length direction of the second thermal insulation layer, and a groove matching the sealing strip is provided on the docking surface of the first thermal insulation layer, the sealing strip is inserted into the groove, and a accommodating cavity is provided inside the sealing strip, and a sealing glue liquid is provided inside the accommodating cavity, an overflow hole connected to the accommodating cavity is provided on the outer surface of the sealing strip, and a sealing layer for sealing the overflow hole is provided on the inner wall of the accommodating cavity, and the sealing strip is made of a brittle composite material, fragile plastic or fragile rubber.

[0016] Preferably, the first protective shell and the second protective shell are each provided with an outer annular groove at one end and an inner annular groove at the other end, and the inner diameter of the inner annular groove is the same as the outer diameter of the outer annular groove.

[0017] Preferably, the first thermal insulation layer and the second thermal insulation layer are each provided with an annular protrusion at one end close to the outer annular groove, and the first thermal insulation layer and the second thermal insulation layer are each provided with a docking groove at one end close to the inner annular groove, the inner diameter of the docking groove is the same as the outer diameter of the annular protrusion, and a sealing protrusion is provided on the inner wall of the docking groove, and a sealing groove matched with the sealing protrusion is opened on the outer wall of the annular protrusion.

[0018] A method for laying a thermal pipeline insulation structure comprises the following steps:

[0019] S1. Clean the surface of the area where the thermal pipeline needs to be wrapped with insulation structure;

[0020] S2. Sleeve the first thermal insulation layer from top to bottom on the upper part of the thermal pipeline near the second nut, and ensure that the docking groove on the first thermal insulation layer faces the second nut on the thermal pipeline;

[0021] S3, lift the first second insulation layer from bottom to top and cover the lower part of the thermal pipeline, and make the second insulation layer and the first insulation layer in S2 symmetrically distributed up and down, and the first protective shell and the second protective shell respectively located outside the first insulation layer and the second insulation layer are also symmetrically distributed up and down;

[0022] S4, the two connecting pieces at the front and rear of the second protective shell in S3 are respectively turned upward around the axis of the first clamping rod inside the second protective shell, so that the connecting piece is inserted into the through groove, and the two second clamping rods at the front and rear are respectively turned along with the connecting piece to the top of the two front and rear folded edges on the first protective shell, and then the support for the second thermal insulation layer is released, and the second clamping rod falls on the upper surface of the folded edge of the first protective shell, so as to hang the second thermal insulation layer directly below the first thermal insulation layer;

[0023] S5. Insert the two bolts into the through holes on the two connecting blocks in S4 respectively, and make the threaded ends of the bolts correspond to the second nuts fixed on the thermal pipe, and then screw the two bolts into the two second nuts respectively. In this process, the bolts can pull the second clamping rod to slide through the connecting block, and make the clamping force application component press the second clamping rod downward, and at the same time, the clamping force application component cooperates with the connecting piece to tighten the first clamping rod upward, at this time, the first clamping rod and the second clamping rod can clamp and fix the upper and lower folded edges on the first protective shell and the second protective shell, at this time, the first thermal insulation layer and the second thermal insulation layer in S4 are tightly wrapped around the outside of the thermal pipe to form a first section of cylindrical thermal insulation layer, and the first protective shell and the second protective shell in S4 are tightly wrapped around the outside of the first thermal insulation layer and the second thermal insulation layer to form a first section of cylindrical protective shell;

[0024] S6, filling the butt joint grooves between the ends of the first thermal insulation layer and the second thermal insulation layer in S5 with sealing and heat-insulating materials;

[0025] S7, sleeve the second first thermal insulation layer on the upper part of the thermal pipeline from top to bottom, and ensure that the second first thermal insulation layer is aligned with the first first thermal insulation layer on the left and right;

[0026] S8, lift the second second insulation layer from bottom to top and sleeve it on the lower part of the thermal pipeline, and make the second insulation layer and the first insulation layer in S2 symmetrically distributed up and down, and the second first protective shell and the second second protective shell are also symmetrically distributed up and down;

[0027] S9, following the steps in S4, hang the second second thermal insulation layer directly below the second first thermal insulation layer through the connecting piece on the second first protective shell and the second clamping rod;

[0028] S10, insert the two bolts into the two connecting blocks on the two second clamping rods in S9 respectively, ensure that the two bolts pass through the through holes respectively and correspond to the two first nuts on the outside of the first first protective shell, and then screw the two bolts into the two second nuts respectively. In this process, the bolts can also pull the second clamping rod to slide through the connecting blocks, and the upper and lower folding edges on the first protective shell and the second protective shell are clamped and fixed by the first clamping rod and the second clamping rod in the same way as the clamping process in S5. At this time, the first thermal insulation layer and the second thermal insulation layer will also be tightly wrapped around the outside of the thermal pipe to form a second cylindrical thermal insulation layer, and the first protective shell and the second protective shell will be tightly wrapped around the outside of the first thermal insulation layer and the second thermal insulation layer to form a second cylindrical protective shell;

[0029] S11, by repeating steps S7 to S10, the subsequent first insulation layer and the second insulation layer and the first protective shell and the second protective shell are sequentially wrapped and installed on the outside of the thermal pipeline.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the present invention provides a thermal pipeline insulation structure and laying method, which has the following beneficial effects:

[0032] 1. During installation, the first insulation layer can be firstly put on the upper part of the thermal pipe, and then the second insulation layer can be hung under the first insulation layer through the docking clamping assembly. Finally, only two bolts need to be tightened respectively to complete the docking and fixation between the first insulation layer and the second insulation layer and between the first protective shell and the second protective shell. Therefore, when installing the insulation structure, only two bolts need to be screwed, which can greatly reduce the amount of operation and reduce the time spent on installation to a certain extent, making the installation work more convenient and improving the installation efficiency.

[0033] 2. Under the action of the docking clamping assembly, the docking surfaces of the first thermal insulation layer and the second thermal insulation layer will be tightly fitted to achieve the purpose of the first sealing of the docking, and the sealing strip on the docking surface of the second thermal insulation layer will also be inserted into the groove on the first thermal insulation layer, so as to further improve the tightness of the docking and achieve the purpose of the second sealing of the docking. As the first protective shell and the second protective shell gradually approach each other, the pressure groove and the second protective shell will squeeze the pressure strip and bend or fold inwardly to elastically deform, thereby squeezing the docking of the first thermal insulation layer and the second thermal insulation layer to a certain extent. The butt joint will be compacted to a certain extent, making the butt joint tighter, and the pressure strip will also be sealed at the butt joint, thereby achieving the purpose of the third sealing of the butt joint. At the same time, after the sealing strip is squeezed, the sealing glue liquid inside it will also flow out to the butt joint through the overflow hole, so it can have a certain bonding effect on the butt joint, thereby improving the integrity of the first insulation layer and the second insulation layer, and achieving the purpose of the fourth sealing. The four-fold sealing can effectively improve the sealing ability of the butt joint, prevent the heat of the medium in the thermal pipeline from being lost in large quantities through the butt joint, thereby effectively improving the overall insulation performance of the insulation structure.

[0034] 3. Moreover, since the adjacent bolts and the first nuts are respectively arranged on the two adjacent cylindrical protective shells on the left and right, when the bolts are screwed on the first nuts adjacent to them, an extrusion force will be applied to the two adjacent cylindrical protective shells on the left and right, so that the shell docking units between the two adjacent cylindrical protective shells are connected more tightly, and the insulation layer docking units between the two adjacent cylindrical insulation layers are also connected more tightly, thereby improving the sealing of the docking point at the end of the insulation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the present invention;

[0036] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0037] Figure 3 This is a schematic diagram of a three-dimensional exploded structure of the present invention;

[0038] Figure 4 It is a schematic diagram of the front three-dimensional explosion structure of the cylindrical protective shell of the present invention;

[0039] Figure 5 This is a schematic diagram of the front three-dimensional structure of the present invention when it is installed;

[0040] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0041] Figure 7It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0042] Figure 8 For the present invention Figure 7 The enlarged structural diagram at C in the middle;

[0043] Fig. 9 It is a schematic diagram of a front three-dimensional exploded structure of a cylindrical thermal insulation layer of the present invention;

[0044] Fig.10 It is a schematic diagram of the front cross-sectional structure of the thermal insulation layer docking unit of the present invention;

[0045] Fig.11 It is a schematic diagram of the cross-sectional structure of the joint of the present invention;

[0046] Fig.12 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0047] Fig.13 For the present invention Fig.12 Enlarged structural diagram at D in the middle.

[0048] In the figure: 1, first protective shell; 2, second protective shell; 3, folding edge; 301, through groove; 4, docking clamping assembly; 401, first clamping rod; 402, connecting piece; 403, second clamping rod; 5, clamping force assembly; 501, slider; 502, top block; 6, tightening and fixing assembly; 601, connecting block; 602, bolt; 603, first nut; 604, second nut; 7, shell docking unit; 701, outer ring groove; 702, inner ring groove; 8, sealing assembly Parts; 801, sealing strip; 802, overflow hole; 803, sealing layer; 804, sealing glue; 9, extrusion component; 901, pressure strip; 902, pressure groove; 10, thermal pipeline; 11, first insulation layer; 1101, groove; 12, second insulation layer; 13, insulation layer docking unit; 1301, annular protrusion; 1302, docking groove; 1303, sealing groove; 1304, sealing convex ring; 100, cylindrical protective shell; 200, cylindrical insulation layer. DETAILED DESCRIPTION

[0049] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] Embodiment 1

[0054] The present invention provides a thermal pipeline insulation structure: Figure 1 and Figure 3 As shown, it includes a thermal pipeline 10, a first thermal insulation layer 11 and a second thermal insulation layer 12 covering the outside of the thermal pipeline 10, and a first protective shell 1 and a second protective shell 2 respectively fixed to the outside of the first thermal insulation layer 11 and the second thermal insulation layer 12, the first protective shell 1 and the second protective shell 2 are both semi-cylindrical and butted to form a cylindrical protective shell 100, a butt clamping assembly 4 is provided near the butt joint position on the first protective shell 1 and the second protective shell 2, the first thermal insulation layer 11 and the second thermal insulation layer 12 are both semi-cylindrical and butt joint to form a cylindrical thermal insulation layer 200;

[0055] The first protective shell 1 and the second protective shell 2 are both provided with folded edges 3 at the positions close to the docking along the length direction, and the docking clamping components 4 are two groups and are respectively provided on two adjacent folded edges 3 and used to clamp and fix the two adjacent folded edges 3, and the two groups of docking clamping components 4 are symmetrically distributed front and back to ensure the stability and tightness of the connection between the first protective shell 1 and the second protective shell 2;

[0056] like Figures 2 to 8 As shown, the docking clamping assembly 4 includes a first clamping rod 401, a second clamping rod 403, a clamping force applying assembly 5 and a tensioning and fixing assembly 6. The first clamping rod 401 is cylindrical and is arranged on the lower folding edge 3 along the length direction of the folding edge 3, and the outer part of the first clamping rod 401 is sleeved with three connecting members 402, the shape of the connecting member 402 is annular, and the outer part of each folding edge 3 is provided with three through grooves 301 adapted to the connecting member 402, and the connecting member 402 is inserted through the through grooves 301, the second clamping rod 403 is arranged on the upper folding edge 3 along the length direction of the folding edge 3, and the second clamping rod 403 is inserted through the inside of the connecting member 402, the clamping force applying assembly 5 is arranged between the connecting member 402 and the second clamping rod 403, and the tensioning and fixing assembly 6 is arranged on the upper folding edge 3 and connected to the second clamping rod 403;

[0057] The clamping force applying assembly 5 includes three sliders 501 and three top blocks 502. The three top blocks 502 are respectively fixed to the upper parts of the three connecting members 402. The sliders 501 are in the shape of a wedge with the inclined surface facing obliquely upward. The three sliders 501 are fixed to the second clamping rod 403 in sequence, and the three sliders 501 are respectively in contact with the top blocks 502, and the contact parts of the top blocks 502 and the sliders 501 are provided with an oblique angle.

[0058] like Figure 2 as well as Figures 4 to 8 As shown, the tightening and fixing assembly 6 includes a connecting block 601, a bolt 602, a first nut 603 and a second nut 604. The connecting block 601 is fixed to one side of the second clamping rod 403, and a through hole adapted to the bolt 602 is opened on the connecting block 601. The bolt 602 is inserted into the through hole. The first nut 603 is fixed to the side of the folded edge 3 away from the connecting block 601, and the second nut 604 is fixed to the outside of the thermal pipe 10.

[0059] A method for laying a thermal pipeline insulation structure comprises the following steps:

[0060] S1. Clean the surface of the area where the thermal pipe 10 needs to be wrapped with the insulation structure;

[0061] S2, sleeve the first first thermal insulation layer 11 from top to bottom on the upper part of the thermal pipe 10 near the second nut 604, and ensure that the docking groove 1302 on the first thermal insulation layer 11 faces the second nut 604 on the thermal pipe 10;

[0062] S3, lift the first second insulation layer 12 from bottom to top and sleeve it on the lower part of the thermal pipe 10, and make the second insulation layer 12 and the first insulation layer 11 in S2 symmetrically distributed up and down, and the first protective shell 1 and the second protective shell 2 respectively located outside the first insulation layer 11 and the second insulation layer 12 are also symmetrically distributed up and down;

[0063] S4, the two front and rear connecting members 402 of the second protective shell 2 in S3 are respectively turned upward around the axis of the first clamping rod 401 inside thereof, so that the connecting member 402 is inserted into the through groove 301, and the front and rear second clamping rods 403 are respectively turned along with the connecting member 402 to the top of the front and rear folded edges 3 on the first protective shell 1, and then the support of the second thermal insulation layer 12 is released, and the second clamping rod 403 falls on the upper surface of the folded edge 3 on the first protective shell 1, so as to hang the second thermal insulation layer 12 directly below the first thermal insulation layer 11;

[0064] S5. Insert the two bolts 602 into the through holes on the two connecting blocks 601 in S4 respectively, and make the threaded ends of the bolts 602 correspond to the second nuts 604 fixed on the thermal pipe 10, and then screw the two bolts 602 into the two second nuts 604 respectively. In this process, the bolts 602 can pull the second clamping rod 403 to slide on the upper surface of the upper folding edge 3 through the connecting block 601, and at the same time drive the slider 501 to slide synchronously and insert into the connecting piece 402 until the inclined surface of the slider 501 contacts the inclined surface of the top block 502. The slider 501 continues to slide to push the top block 502 upward, and the top block 502 then tightens the connecting piece 402 upward. Finally, the connecting piece 402 will tighten the first clamping rod 401 upward, so that the first clamping rod 401 applies an upward force to the lower folding edge 3. The extrusion force is applied, and at the same time, the top block 502 also applies a downward reaction force to the slider 501, and the reaction force presses the second clamping rod 403 downward, and finally enables the second clamping rod 403 to apply downward pressure to the upper folded edge 3. Therefore, through the downward pressure of the second clamping rod 403 and the upward extrusion force of the first clamping rod 401, the upper and lower folded edges 3 on the first protective shell 1 and the second protective shell 2 can be clamped and fixed. After the front and rear groups of folded edges 3 are clamped by the docking clamping assembly 4 respectively, the first insulation layer 11 and the second insulation layer 12 are tightly wrapped around the outside of the thermal pipe 10 to form the first section of the cylindrical insulation layer 200, and the first protective shell 1 and the second protective shell 2 are tightly wrapped around the outside of the first insulation layer 11 and the second insulation layer 12 to form the first section of the cylindrical protective shell 100;

[0065] S6, filling the sealing heat-insulating material into the butt joint groove 1302 at the end of the first heat-insulating layer 11 and the second heat-insulating layer 12 in S5;

[0066] S7, sleeve the second first thermal insulation layer 11 on the upper part of the thermal pipe 10 from top to bottom, and ensure that the second first thermal insulation layer 11 is aligned with the first first thermal insulation layer 11 left and right;

[0067] S8, lift the second second insulation layer 12 from bottom to top and sleeve it on the lower part of the thermal pipeline 10, and make the second insulation layer 12 and the first insulation layer 11 in S2 symmetrically distributed up and down, and the second first protective shell 1 and the second second protective shell 2 are also symmetrically distributed up and down;

[0068] S9, following the steps in S4, hang the second second thermal insulation layer 12 directly below the second first thermal insulation layer 11 through the connecting piece 402 and the second clamping rod 403 on the second first protective shell 1;

[0069] S10, insert the two bolts 602 into the two connecting blocks 601 on the two second clamping rods 403 in S9 respectively, ensure that the two bolts 602 pass through the through holes respectively and correspond to the two first nuts 603 on the outside of the first protective shell 1, and then screw the two bolts 602 into the two second nuts 604 respectively. In this process, the bolts 602 can also pull the second clamping rod 403 to slide through the connecting block 601, and the upper and lower folding edges 3 on the first protective shell 1 and the second protective shell 2 are clamped and fixed by the first clamping rod 401 and the second clamping rod 403 in the same way as the clamping process in S5. At this time, the first thermal insulation layer 11 and the second thermal insulation layer 12 will also be tightly wrapped around the outside of the thermal pipe 10 to form the second cylindrical thermal insulation layer 200, and the first protective shell 1 and the second protective shell 2 are tightly wrapped around the outside of the first thermal insulation layer 11 and the second thermal insulation layer 12 to form the second cylindrical protective shell 100;

[0070] S11 , by repeating steps S7 to S10 , the subsequent first thermal insulation layer 11 and the second thermal insulation layer 12 and the first protective shell 1 and the second protective shell 2 are sequentially wrapped and installed on the outside of the thermal pipeline 10 .

[0071] Embodiment 2

[0072] like Figures 11 to 13 As shown, a sealing assembly 8 is provided at the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12;

[0073] The sealing assembly 8 includes a sealing strip 801, which is arranged on the docking surface of the second thermal insulation layer 12 along the length direction of the second thermal insulation layer 12. A groove 1101 compatible with the sealing strip 801 is opened on the docking surface of the first thermal insulation layer 11. The sealing strip 801 is inserted into the groove 1101, and a accommodating cavity is provided inside the sealing strip 801, and a sealing glue liquid 804 is provided inside the accommodating cavity. An overflow hole 802 connected to the accommodating cavity is opened on the outer surface of the sealing strip 801, and a sealing layer 803 for sealing the overflow hole 802 is provided on the inner wall of the accommodating cavity. The sealing strip 801 is made of a brittle composite material, fragile plastic or fragile rubber.

[0074] An extrusion assembly 9 for extruding the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12 is provided at the joint between the first protective shell 1 and the second protective shell 2. The extrusion assembly 9 includes a long strip of pressure strip 901. The pressure strip 901 is provided on the second protective shell 2 close to the first protective shell 1, and the long strip of pressure strip 901 is provided along the length direction of the second protective shell 2. The cross-sectional shape of the pressure strip 901 is arc-shaped or bent, and the arc-shaped or bent protrusion faces the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12. A pressing groove 902 connected to the pressure strip 901 is provided near the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12.

[0075] In the process of installing the second protective shell 2 and the second thermal insulation layer 12 on the first protective shell 1 and the first thermal insulation layer 11 respectively through the docking clamping assembly 4, the docking surfaces of the first thermal insulation layer 11 and the second thermal insulation layer 12 will be tightly fitted, and the sealing strip 801 on the docking surface of the second thermal insulation layer 12 will be inserted into the groove 1101 on the first thermal insulation layer 11, and the upper edge of the pressure strip 901 on the second protective shell 2 will also be inserted into the pressure groove 902 on the first thermal insulation layer 11, and as the first protective shell 1 and the second protective shell 2 gradually approach each other, the pressure groove 902 and the second protective shell 2 will squeeze the pressure strip 901, and the squeezed pressure strip 901 will bend inward or bend elastically deformed, as shown in the figure. Fig.13 As shown, the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12 is squeezed to a certain extent. Since the first thermal insulation layer 11 and the second thermal insulation layer 12 are soft materials, the joint surface can be compacted after being squeezed by the pressure strip 901, so as to connect the joint surface more tightly. At the same time, the region is also deformed to a certain extent through the squeezing, and the squeezing force is transmitted to the sealing strip 801. The sealing strip 801 is also deformed to a certain extent after being squeezed. After the sealing strip 801 is squeezed, the sealing glue liquid 804 in the accommodating cavity inside it is also squeezed. The squeezing will break the sealing layer 803 and finally flow out through the overflow hole 802 to the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12. Therefore, the joint can have a certain bonding effect, and thereby improve the integrity of the joint between the first thermal insulation layer 11 and the second thermal insulation layer 12, thereby improving the sealing performance at this place.

[0076] like Figure 1 and Figure 4 As shown, one end of the first protective shell 1 and the second protective shell 2 are both provided with an outer ring groove 701, and the other end is provided with an inner ring groove 702, and the inner diameter of the inner ring groove 702 is the same as the outer diameter of the outer ring groove 701;

[0077] like Figures 9 and 10As shown, an annular protrusion 1301 is provided at one end of the first thermal insulation layer 11 and the second thermal insulation layer 12 close to the outer annular groove 701, and a docking groove 1302 is provided at one end of the first thermal insulation layer 11 and the second thermal insulation layer 12 close to the inner annular groove 702. The inner diameter of the docking groove 1302 is the same as the outer diameter of the annular protrusion 1301, and a sealing protrusion 1304 is provided on the inner wall of the docking groove 1302, and a sealing groove 1303 matched with the sealing protrusion 1304 is opened on the outer wall of the annular protrusion 1301.

[0078] During the docking installation of the first protective shell 1 and the second protective shell 2 and the first thermal insulation layer 11 and the second thermal insulation layer 12, the inner annular groove 702 at the ends of the first protective shell 1 and the second protective shell 2 will also be sleeved outside the outer annular groove 701 at the ends of the adjacent first protective shell 1 and the second protective shell 2, and form a shell docking unit 7 to improve the sealing performance there.

[0079] Moreover, the butt joint groove 1302 at the end of the first thermal insulation layer 11 and the second thermal insulation layer 12 will also be sleeved on the annular protrusion 1301 at the adjacent end of the first thermal insulation layer 11 and the second thermal insulation layer 12, and the sealing protrusion 1304 on the butt joint groove 1302 will also be inserted into the sealing groove 1303 outside the annular protrusion 1301, and form the thermal insulation layer butt joint unit 13, thereby improving the sealing performance at this location;

[0080] Moreover, since the adjacent bolts 602 and the first nuts 603 are respectively arranged on the two adjacent cylindrical protective shells 100 on the left and right, when the bolts 602 are screwed on the first nuts 603 adjacent thereto, an extrusion force will be applied to the two adjacent cylindrical protective shells 100 on the left and right, thereby making the shell docking unit 7 between the two adjacent cylindrical protective shells 100 more tightly connected, and at the same time, the insulation layer docking unit 13 between the two adjacent cylindrical insulation layers 200 will be more tightly connected, thereby improving the sealing of the docking point at the end of the insulation structure.

[0081] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermal pipeline insulation structure, comprising a thermal pipeline (10), a first thermal insulation layer (11) and a second thermal insulation layer (12) covering the outside of the thermal pipeline (10), and a first protective shell (1) and a second protective shell (2) respectively fixed to the outside of the first thermal insulation layer (11) and the second thermal insulation layer (12), characterized in that: The first protective shell (1) and the second protective shell (2) are both semi-cylindrical and butted against each other to form a cylindrical protective shell (100); a butt clamping assembly (4) is provided at a position close to the butt joint on the first protective shell (1) and the second protective shell (2); the first thermal insulation layer (11) and the second thermal insulation layer (12) are both semi-cylindrical and butt jointed to form a cylindrical thermal insulation layer (200); and a sealing assembly (8) is provided at the butt joint between the first thermal insulation layer (11) and the second thermal insulation layer (12).

2. A thermal pipeline insulation structure according to claim 1, characterized in that: The first protective shell (1) and the second protective shell (2) are both provided with folded edges (3) in the length direction at positions close to the butt joint. The butt joint clamping components (4) are in two groups and are respectively provided on two adjacent folded edges (3) and are used to clamp and fix the two adjacent folded edges (3).

3. A thermal pipeline insulation structure according to claim 2, characterized in that: The docking clamping assembly (4) comprises a first clamping rod (401), a second clamping rod (403), a clamping force applying assembly (5) and a tension fixing assembly (6); the first clamping rod (401) is cylindrical and is arranged on the folded edge (3) at the lower part along the length direction of the folded edge (3); the first clamping rod (401) is sleeved with a plurality of connecting pieces (402) on the outside; the connecting pieces (402) are in the shape of an annular ring; the outside of the folded edge (3) is provided with a plurality of holes adapted to fit the connecting pieces (402) The connecting member (402) is inserted into the through slot (301), the second clamping rod (403) is arranged on the upper folding edge (3) along the length direction of the folding edge (3), and the second clamping rod (403) is inserted into the inside of the connecting member (402), the clamping force application component (5) is arranged between the connecting member (402) and the second clamping rod (403), and the tensioning and fixing component (6) is arranged on the upper folding edge (3) and is connected to the second clamping rod (403).

4. A thermal pipe insulation structure according to claim 3, characterized in that: The clamping force applying assembly (5) comprises a plurality of sliders (501) and a plurality of top blocks (502), wherein the plurality of top blocks (502) are respectively fixed to the upper parts of the plurality of connecting members (402), the sliders (501) are in the shape of a wedge with the inclined surface facing obliquely upward, the plurality of sliders (501) are fixed to the second clamping rod (403) in sequence, and the plurality of sliders (501) are respectively in contact with the top blocks (502), and the contact parts between the top blocks (502) and the sliders (501) are provided with an oblique angle.

5. A thermal pipeline insulation structure according to claim 3, characterized in that: The tightening and fixing assembly (6) comprises a connecting block (601), a bolt (602), a first nut (603) and a second nut (604); the connecting block (601) is fixed to one side of the second clamping rod (403), and a through hole matching the bolt (602) is provided on the connecting block (601); the bolt (602) is inserted into the through hole; the first nut (603) is fixed to a side of the folded edge (3) away from the connecting block (601); and the second nut (604) is fixed to the outside of the thermal pipe (10).

6. A thermal pipe insulation structure according to claim 1, characterized in that: An extrusion assembly (9) for extruding the joint between the first thermal insulation layer (11) and the second thermal insulation layer (12) is provided at the joint between the first protective shell (1) and the second protective shell (2); the extrusion assembly (9) comprises a long strip of pressure strip (901); the pressure strip (901) is provided on the second protective shell (2) at a position close to the first protective shell (1), and the pressure strip (901) is provided along the length direction of the second protective shell (2); the cross-sectional shape of the pressure strip (901) is arc-shaped or bent, and the arc-shaped or bent convex portion faces the joint between the first thermal insulation layer (11) and the second thermal insulation layer (12); and a pressing groove (902) connected to the pressure strip (901) is provided near the joint between the first thermal insulation layer (11).

7. The thermal pipe insulation structure according to claim 1, characterized in that: The sealing assembly (8) comprises a sealing strip (801), wherein the sealing strip (801) is arranged on a butt joint surface of the second thermal insulation layer (12) along the length direction of the second thermal insulation layer (12), a groove (1101) matching the sealing strip (801) is provided on the butt joint surface of the first thermal insulation layer (11), the sealing strip (801) is inserted into the groove (1101), and a receiving cavity is provided inside the sealing strip (801), a sealing glue liquid (804) is provided inside the receiving cavity, an overflow hole (802) communicating with the receiving cavity is provided on the outer surface of the sealing strip (801), and a sealing layer (803) for sealing the overflow hole (802) is provided on the inner wall of the receiving cavity, and the sealing strip (801) is made of a brittle composite material, fragile plastic or fragile rubber.

8. The thermal pipe insulation structure according to claim 1, characterized in that: The first protective shell (1) and the second protective shell (2) are each provided with an outer annular groove (701) at one end, and an inner annular groove (702) at the other end, and the inner diameter of the inner annular groove (702) is the same as the outer diameter of the outer annular groove (701).

9. A thermal pipeline insulation structure according to claim 8, characterized in that: An annular protrusion (1301) is provided on one end of the first thermal insulation layer (11) and the second thermal insulation layer (12) close to the outer annular groove (701), and a docking groove (1302) is provided on one end of the first thermal insulation layer (11) and the second thermal insulation layer (12) close to the inner annular groove (702). The inner diameter of the docking groove (1302) is the same as the outer diameter of the annular protrusion (1301), and a sealing protrusion (1304) is provided on the inner wall of the docking groove (1302), and a sealing groove (1303) adapted to the sealing protrusion (1304) is provided on the outer wall of the annular protrusion (1301).

10. A method for laying a thermal pipeline insulation structure, characterized in that: The thermal pipe insulation structure according to any one of claims 1 to 9 comprises the following steps: S1. Clean the surface of the area of ​​the thermal pipeline (10) that needs to be wrapped with the insulation structure; S2, sleeve the first first thermal insulation layer (11) from top to bottom on the upper part of the thermal pipe (10) near the second nut (604), and ensure that the docking groove (1302) on the first thermal insulation layer (11) faces the second nut (604) on the thermal pipe (10); S3, lifting the first second thermal insulation layer (12) from bottom to top and sleeved on the lower part of the thermal pipeline (10), and making the second thermal insulation layer (12) and the first thermal insulation layer (11) in S2 symmetrically distributed in the vertical direction, and the first protective shell (1) and the second protective shell (2) respectively located outside the first thermal insulation layer (11) and the second thermal insulation layer (12) are also symmetrically distributed in the vertical direction; S4, the two front and rear connecting pieces (402) of the second protective shell (2) in S3 are respectively turned upward around the axis of the first clamping rod (401) inside the second protective shell, so that the connecting piece (402) is inserted into the through groove (301), and the front and rear second clamping rods (403) are respectively turned along with the connecting piece (402) to the top of the front and rear folded edges (3) on the first protective shell (1), and then the support for the second thermal insulation layer (12) is released, and the second clamping rod (403) falls on the upper surface of the folded edge (3) on the first protective shell (1), thereby hanging the second thermal insulation layer (12) directly below the first thermal insulation layer (11); S5. Insert the two bolts (602) into the through holes on the two connecting blocks (601) in S4 respectively, and make the threaded ends of the bolts (602) correspond to the second nuts (604) fixed on the thermal pipe (10), and then screw the two bolts (602) into the two second nuts (604) respectively. In this process, the bolts (602) can pull the second clamping rod (403) to slide through the connecting block (601), and make the clamping force component (5) press the second clamping rod (403) downward, and at the same time, the clamping force component (5) cooperates with the connecting piece (402) to pull upward. The first clamping rod (401) and the second clamping rod (403) can clamp and fix the upper and lower folded edges (3) on the first protective shell (1) and the second protective shell (2). At this time, the first thermal insulation layer (11) and the second thermal insulation layer (12) in S4 are tightly wrapped around the outside of the thermal pipe (10) to form a first section of the cylindrical thermal insulation layer (200), and the first protective shell (1) and the second protective shell (2) in S4 are tightly wrapped around the outside of the first thermal insulation layer (11) and the second thermal insulation layer (12) to form a first section of the cylindrical protective shell (100); S6, filling the butt joint groove (1302) at the ends of the first thermal insulation layer (11) and the second thermal insulation layer (12) in S5 with a sealing thermal insulation material; S7, sleeve the second first thermal insulation layer (11) on the upper part of the thermal pipeline (10) from top to bottom, and ensure that the second first thermal insulation layer (11) is aligned with the first first thermal insulation layer (11) on the left and right; S8, lifting the second second thermal insulation layer (12) from bottom to top and sleeved on the lower part of the thermal pipeline (10), and making the second thermal insulation layer (12) and the first thermal insulation layer (11) in S2 symmetrically distributed in the vertical direction, and the second first protective shell (1) and the second second protective shell (2) also symmetrically distributed in the vertical direction; S9, following the steps in S4, hang the second second thermal insulation layer (12) directly below the second first thermal insulation layer (11) through the connecting piece (402) and the second clamping rod (403) on the second first protective shell (1); S10, insert the two bolts (602) into the two connecting blocks (601) on the two second clamping rods (403) in S9 respectively, ensure that the two bolts (602) pass through the through holes and correspond to the two first nuts (603) outside the first protective shell (1), and then screw the two bolts (602) into the two second nuts (604) respectively. In this process, the bolts (602) can also pull the second clamping rod (403) to slide through the connecting blocks (601), and will be clamped in the same manner as in S5. Similarly, the upper and lower folded edges (3) on the first protective shell (1) and the second protective shell (2) are clamped and fixed by the first clamping rod (401) and the second clamping rod (403), and the first thermal insulation layer (11) and the second thermal insulation layer (12) are also tightly wrapped around the outside of the thermal pipe (10) to form a second section of the cylindrical thermal insulation layer (200), and the first protective shell (1) and the second protective shell (2) are tightly wrapped around the outside of the first thermal insulation layer (11) and the second thermal insulation layer (12) to form a second section of the cylindrical protective shell (100); S11, by repeating steps S7 to S10, the subsequent first thermal insulation layer (11) and the second thermal insulation layer (12) and the first protective shell (1) and the second protective shell (2) are sequentially wrapped and installed on the outside of the thermal pipeline (10).

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