Heat preservation pipe shell integrally formed by pipeline heat preservation and aluminum sheet protection shell

Abstract

The invention relates to the technical field of pipeline heat preservation, in particular to a pipeline heat preservation and aluminum sheet protection shell integrated heat preservation pipe shell which comprises a heat preservation shell, the heat preservation shell comprises a shell body, the shell body is formed by bending a whole metal aluminum plate, sealing plates are connected to the two ends of the shell body in a clamped mode, a plurality of foaming assemblies are axially distributed in the shell body, and foaming materials are stored in the foaming assemblies; and a triggering structure is also arranged in the shell. The prefabricated heat preservation shell is used for wrapping the pipeline, polystyrene foam triggering is achieved through the triggering structure, the working procedures of heat preservation, cutting, plate rolling and the like on a construction site are omitted, and the construction efficiency is improved; the prefabricated heat preservation shell and the foaming assembly can guarantee the consistency of construction quality, and manual interference is reduced; the integrally-formed structure can utilize the heat preservation shell and the packaging pipe to protect the heat preservation material, transportation and storage are convenient, and the finished product protection pressure on the construction site is relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline heat preservation, in particular to a pipeline heat preservation and aluminum skin protection shell integrally formed heat preservation pipe shell. BACKGROUND

[0002] Pipeline heat preservation refers to reducing heat exchange between the medium in the pipeline and the external environment through the means of wrapping heat preservation materials, so as to improve energy efficiency, maintain pipeline temperature, prevent condensation or freeze cracking, and ensure operation safety.

[0003] At present, the conventional pipeline heat preservation means is generally split type installation, that is, wrapping heat preservation materials such as rock wool, polyurethane foam prefabricated pipe on the outside of the pipeline, and fixing by using glue or iron wire, and then wrapping aluminum skin, galvanized iron sheet or stainless steel and other corrosion-resistant metal materials on the outside of the heat preservation layer for protection to avoid damage to the heat preservation materials.

[0004] This construction method can play a good heat preservation role, and the metal skin can protect the heat preservation materials from damage and delay the aging of the heat preservation materials. However, the metal skin needs to be processed on site, which involves measurement, cutting, plate rolling and finally fixing, and the operation is complicated, the construction period is long, and the construction technology and experience of workers are strongly dependent. SUMMARY

[0005] In order to make up for the above shortcomings, the present application provides a pipeline heat preservation and aluminum skin protection shell integrally formed heat preservation pipe shell.

[0006] The technical scheme of the present application is:

[0007] A pipeline heat preservation and aluminum skin protection shell integrally formed heat preservation pipe shell is suitable for the outside of a pipeline and comprises a heat preservation shell, a sealing plate, a foaming assembly and a triggering structure.

[0008] The heat preservation shell comprises a shell body, the shell body is bent from a whole metal aluminum plate and fixed into a cylindrical structure to be sleeved on the outside of the pipeline, and the two ends of the shell body are respectively sealed and connected to the two ends of the pipeline through the sealing plates.

[0009] The foaming assembly is provided with a plurality of groups, each group of the foaming assembly stores foaming material, and is axially distributed on the inner wall of the cylindrical structure to fill the gap between the pipeline and the shell body.

[0010] The triggering structure comprises a sliding ring, the sliding ring is sleeved on one end of the pipeline in the shell body, a plurality of cutting knives are radially arranged on the outer side of the sliding ring, and the foaming material is released and wrapped on the outer wall of the pipeline by cutting the foaming assembly through the cutting knives when sliding along the pipeline.

[0011] The inner diameter of the end plate at the right end of the shell is the same as the outer diameter of the pipeline, so as to realize the close connection with the pipeline; the inner diameter of the end plate at the left end is larger than the outer diameter of the pipeline and smaller than the triggering structure, so as to leave a space for pulling the triggering structure, and the triggering structure will not slip out of the end plate at the left end.

[0012] Preferably, the end plate comprises two C-shaped half-plate one and half-plate two, which are connected by the second engagement groove and fixed by the fixing sheet and screw, the end plate is provided with a clamping groove, the two ends of the shell are provided with a limiting plate, the limiting plate is matched with the Z-shaped clamping groove of the clamping groove, and the limiting plate and the end plate are tightly clamped through the Z-shaped clamping groove.

[0013] Preferably, the side seam of the cylindrical structure of the shell is clamped through the first engagement groove, and a combination buckle is arranged on the side of the cylindrical structure, and the combination buckle is locked and fixed.

[0014] Preferably, the outer side of the limiting plate at the two ends of the shell is respectively provided with a lap joint ring, the lap joint ring comprises a lap joint ring one arranged on the limiting plate at one end of the shell and a lap joint ring two arranged on the limiting plate at the other end, and the two adjacent shells are connected through the lap joint ring one and the lap joint ring two.

[0015] Preferably, the foaming assembly comprises a bottom plate and a plurality of packaging tubes, the packaging tube is used for storing foaming material, the end faces of two adjacent packaging tubes are spaced apart by mm, and a discontinuous gap is arranged on the upper part of the bottom plate and penetrates between the packaging tubes, so as to quickly cut off the packaging tube.

[0016] Preferably, the slip ring comprises two half rings, the port of the half ring is provided with an engagement block, and the two half rings are locked and connected through the engagement block and the locking screw;

[0017] The end face of the slip ring is provided with a snap ring, the outer diameter of the snap ring is the same as the inner diameter of the end plate at the right end of the shell, the inner diameter of the snap ring is the same as the outer diameter of the pipeline, and the thickness of the snap ring is the same as the thickness of the end plate at the right end.

[0018] Preferably, a pulling rope is arranged on the snap ring, one end of the pulling rope is arranged on the snap ring, and the other end of the pulling rope extends to the outside of the shell.

[0019] Preferably, the cutting blade edge is arc-shaped and faces the right end of the shell, and the top end of the cutting blade is slightly higher than the lowermost edge of the foaming assembly, so as to be inserted into the foaming assembly to break the foaming assembly.

[0020] Preferably, grooves or convex points are stamped on the shell, so as to improve the bonding strength of the shell and the foaming material.

[0021] In addition, the application further provides an application method of the pipeline thermal insulation and aluminum skin protection shell integrally formed thermal insulation pipe shell, comprising the following steps:

[0022] Step S1: pre-installation

[0023] Step S11: connecting two half rings through the bite block and locking screw to form a sliding ring;

[0024] Step S12: preparing the pipeline needing thermal insulation, and sleeving the sliding ring with the trigger structure on the right end of the pipeline; the clasp ring of the sliding ring is positioned in cooperation with the outer diameter of the pipeline, and the outer diameter of the clasp ring is the same as the inner diameter of the sealing plate at the right end of the shell, so that the sliding ring can be coaxially guided at the right end sealing plate during subsequent sliding;

[0025] Step S13: sleeving the sealing plates at both ends of the pipeline respectively, wherein the inner diameter of the sealing plate at the right end of the shell is the same as the outer diameter of the pipeline, so that the pipeline is tightly connected, and the foaming material is prevented from leaking; the inner diameter of the sealing plate at the left end of the shell is slightly larger than the outer diameter of the pipeline, so as to leave a moving space for the sliding ring and the traction rope; and the inner diameter of the sealing plate at the left end is smaller than the outer diameter of the trigger structure, so that the trigger structure will not slide out of the sealing plate at the left end to the outside of the shell after sliding;

[0026] Step S14: sending the pipeline with the pre-installed trigger structure and the installed sealing plate as a whole into the opening of the prepared thermal insulation shell, so that the pipeline is coaxially positioned with the shell; at this time, the sliding ring is located in the shell, and the initial position is close to the sealing plate at the right end of the shell, one end of the traction rope is fixed to the clasp ring and passes out of the shell through the gap between the sealing plate at the left end of the shell and the pipeline, so as to facilitate external traction;

[0027] Step S2: arranging and pasting the foaming assembly on the inner wall of the shell

[0028] The foaming assembly is arranged and pasted along the inner wall of the shell in an axial and uniform manner, the foaming assembly should be distributed in a circumferential direction around the pipeline and cover the expected thermal insulation area, so as to ensure that the foaming material can uniformly fill the cavity between the pipeline and the shell when cutting and foaming;

[0029] Step S3: rolling and locking the shell along the pipeline

[0030] The shell with the pasted foaming assembly surrounds the pipeline, and the shell side joint is clamped through the first bite groove and locked through the combined buckle, the Z-shaped clamping groove of the limiting plate and the sealing plate are tightly clamped, so as to ensure that the shell is completely surrounded and a stable cylindrical shell structure is formed;

[0031] Step S4: in-situ inspection and preparation of triggering

[0032] Before triggering, the operator needs to check whether the slip ring is coaxially aligned with the right end plate, confirm that the traction rope is exposed and can be pulled freely; confirm that the encapsulation tube of the foaming component can be torn and released at the point of break, and that the tip of the cutting blade is slightly higher than the bottom edge of the foaming component, so as to ensure that the cutting can be inserted into and broken through the encapsulation tube without damaging the pipe.

[0033] Step S5: Traction trigger structure, cut foaming component and in-situ foaming to cover pipe.

[0034] The traction rope is pulled by construction personnel or machinery, and the slip ring moves from right to left along the pipeline axis. Several cutting blades on the outside of the slip ring slide along the inner wall of the shell. The cutting blades are arc-shaped and face the right end of the shell. They are inserted into and scrape open each set of foaming components in sequence, so that the encapsulated tube is quickly broken at the point of breakage. The foaming material inside the encapsulated tube is released. The released foaming material expands in a short time and fills the cavity between the outer wall of the pipeline and the inner wall of the shell in the circumferential and axial directions, forming a continuous and dense insulation layer.

[0035] Step S6: Foaming, curing, and sealing completed.

[0036] The foamed material expands and solidifies inside the shell, bonding tightly to the outer wall of the pipe and the inner wall of the shell to form an integrated aluminum protective shell and insulation layer structure. Because the sealing plate on the right end fits tightly with the outer diameter of the pipe, it can prevent the foamed material from leaking out during construction, ensuring the integrity of the insulation layer. At the same time, the setting of the inner diameter of the sealing plate on the left end ensures the movement of the traction structure and prevents the triggering structure from slipping off the sealing plate on the left end.

[0037] Step S7: Multi-segment connection

[0038] Adjacent shells are connected end-to-end via latching rings 1 and 2 in the slots provided on the limiting plate, thus completing continuous insulation coverage of the long pipe section.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. This invention adopts an integrated structure design of foaming components and aluminum shell, which realizes the synchronous molding of insulation layer and outer protective shell, eliminating the multiple processes of wrapping insulation first and then wrapping aluminum shell in the traditional method, significantly improving construction efficiency and avoiding interlayer voids and peeling.

[0041] 2. The present invention adopts a differentiated design in which the right end sealing plate is tightly fitted to the pipe and the inner diameter of the left end sealing plate is larger than that of the pipe but smaller than that of the triggering structure. This design achieves a sealed and leak-proof process during the foaming process, while ensuring that the triggering structure can be smoothly pulled without slipping, thus improving the reliability and safety of foaming triggering.

[0042] 3、The trigger mechanism of the application adopts a slip ring, a cutting knife and a traction rope, realizes the function of automatically cutting the foaming assembly and releasing the material coated pipeline in the closed state of the shell, avoids manual operation in the shell, and greatly improves the construction convenience and safety.

[0043] 4、The application adopts foaming material to expand in situ in the shell and tightly bond with the pipeline and the shell, realizes a continuous, seamless and dense stable insulation layer structure, eliminates the joint heat bridge problem, and significantly improves the insulation performance and long-term stability.

[0044] 5、The application adopts a shell formed by bending an aluminum plate, and a convex-concave groove connection structure of a snap groove, a combined buckle and a limiting plate, realizes rapid sealing and multi-section butt joint of the shell, has high modularization degree, is convenient to install and disassemble, and is suitable for standardized construction of long-distance pipelines.

[0045] In summary, the application uses a prefabricated insulation shell to wrap the pipeline, uses a trigger structure to trigger the foaming glue, cancels the processes of insulation and aluminum skin cutting and plate rolling at the construction site, improves the construction efficiency, and ensures the consistency of construction quality and reduces manual interference by using a prefabricated insulation shell and a foaming assembly. The integrally formed structure can protect the foaming material by using the insulation shell and the packaged pipe, facilitate transportation and storage, and reduce the finished product protection pressure at the construction site. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a first schematic diagram of the overall structure of the application;

[0047] Figure 2 It is a second schematic diagram of the overall structure of the application;

[0048] Figure 3 It is a cross-sectional schematic diagram of the overall structure in the application;

[0049] Figure 4 It is a schematic diagram of the foaming assembly structure in the application;

[0050] Figure 5 It is a schematic diagram of the trigger structure in the application;

[0051] Figure 6 It is a schematic diagram of two insulation shells connected in the application;

[0052] Figure 7 It is Figure 6 a schematic diagram of the detailed structure of A in the application;

[0053] The meanings of the various reference numbers in the figure are as follows:

[0054] 1, insulation shell; 11, shell; 12, first snap groove; 13, combined buckle; 14, limiting plate; 15, lap joint ring one; 16, lap joint ring two;

[0055] 2, sealing plate; 21, half-round plate one; 22, half-round plate two; 23, second engagement groove; 24, fixing piece; 25, clamping groove;

[0056] 3, foaming assembly; 31, bottom plate; 32, sealing tube; 33, point fracture;

[0057] 4, triggering structure; 41, half ring; 42, clasp; 43, engagement block; 44, locking screw; 45, cutting knife; 46, traction rope;

[0058] 5, pipeline. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0060] Embodiment 1:

[0061] Please refer to Figures 1-5 The above technical solutions are described in detail by the following embodiments.

[0062] A pipeline heat preservation and aluminum skin protection shell integrally formed heat preservation pipe shell suitable for the outside of pipeline 5, comprising heat preservation shell 1, sealing plate 2, foaming assembly 3 and triggering structure 4:

[0063] The heat preservation shell 1 comprises a shell body 11, which is bent after being fixed into a cylindrical structure and is sleeved outside the pipeline 5, and the two ends of the shell body 11 are respectively sealed and connected to the two ends of the pipeline 5 through the sealing plate 2.

[0064] The side joint of the cylindrical structure of the shell body 11 is clamped through the first engagement groove 12, and a combined buckle 13 is arranged on the side of the cylindrical structure, and the combined buckle 13 is used to realize the locking and fixing. Further, in this embodiment, the first engagement groove 12 and the limiting plate 14 are formed by stamping, and the buckle 13 is riveted outside the splicing joint of the first engagement groove 12, and the buckle 13 is used to prevent the shell body 11 from being opened from the first engagement groove 12.

[0065] The outer side of the limiting plate 14 at both ends of the shell body 11 is respectively provided with a lap joint ring, and the lap joint ring comprises a lap joint ring one 15 arranged on the limiting plate 14 at one end of the shell body 11 and a lap joint ring two 16 arranged on the limiting plate 14 at the other end, and the two adjacent shell bodies 11 are connected through the lap joint ring one 15 and the lap joint ring two 16.

[0066] The foaming assembly 3 is provided with several groups, each group of foaming assembly 3 stores foaming material, and is distributed on the inner wall of the cylindrical structure in the axial direction, for filling the gap between the pipeline 5 and the shell 11. The foaming assembly 3 comprises a bottom plate 31 and a plurality of packaging tubes 32, the packaging tube 32 is used for storing foaming material, the end face of the adjacent two packaging tubes 32 is spaced by 4-6mm, the upper part of the bottom plate 31 is located between the packaging tubes 32 and is provided with a point break 33, for quickly cutting the packaging tube 32.

[0067] Further, in the embodiment, the bottom plate 31 and the packaging tube 32 are made of plastic material, the cross section of the packaging tube 32 is semicircular, and the bottom surface of the bottom plate 31 can be pre-pasted with double-sided adhesive tape.

[0068] The spacing between the end faces of the packaging tubes 32 allows the foaming assembly 3 to bend, and the point break 33 can facilitate the cutting of the foaming assembly 3.

[0069] Since the volume of a single packaging tube 32 is fixed and the same, the foaming volume is also fixed and measurable. According to the volume of the cavity between the pipeline and the aluminum skin protective shell, the number of semicircular tubes needed to be pasted for each aluminum skin protective shell is calculated.

[0070] The calculation method is as follows:

[0071] The volume of the cylinder surrounded by the aluminum skin protective shell is subtracted from the volume of the cylinder of the pipeline wrapped therein, and the result is divided by the theoretical expansion volume of the foaming material inside a single packaging tube 32, and the quotient is the number of packaging tubes 32 needed in theory.

[0072] It should be noted that the result of the division needs to be rounded up.

[0073] In actual use, the actual number of packaging tubes 32 needed is 1-2 more than the theoretical number. The specific number can be determined according to the temperature and humidity conditions on site, which will not be described here.

[0074] According to the number of packaging tubes 32 needed, cut along the point break 33, and then use double-sided adhesive tape to evenly paste the bottom plate 31 to the inside of the shell 11. The packaging tube 32 can be pasted along the axial direction of the shell 11, or can be pasted along the circumferential direction. In the embodiment, the circumferential direction is selected for pasting, and the axial direction is selected for arranging.

[0075] The trigger structure 4 comprises a slip ring, the slip ring is sleeved on one end of the pipeline 5 located in the shell 11, a plurality of cutting knives 45 are radially provided on the outer side of the slip ring, and the foaming material is released and wrapped on the outer wall of the pipeline 5 by cutting the foaming assembly 3 when the cutting knife 45 slides along the pipeline 5;

[0076] The inner diameter of the end plate 2 at the right end of the shell 11 is the same as the outer diameter of the pipeline 5, so that the pipeline 5 is tightly connected to the shell 11, and the foaming material is prevented from leaking out during foaming.

[0077] Further, in the embodiment, the end plate 2 is in the shape of O, which is formed by two C-shaped half plates, i.e., half plate one 21 and half plate two 22. The half plate one 21 and the half plate two 22 are connected by a second engagement groove 23 and are fixed by a fixing sheet 24 and a screw. The half plate one 21 and the half plate two 22 are respectively provided with a clamping groove 25. The both ends of the shell 11 are provided with a limiting plate 14. The limiting plate 14 is stamped into a Z-shaped clamping groove which is matched with the clamping groove 25. The limiting plate 14 and the end plate 2 are tightly clamped by the Z-shaped clamping groove.

[0078] The sliding ring includes two half rings 41. The port of the half ring 41 is provided with an engagement block 43. The two half rings 41 are fixedly connected by the engagement block 43 and a locking screw 44.

[0079] The end surface of the sliding ring is provided with a clamping ring 42. The outer diameter of the clamping ring 42 is the same as the inner diameter of the end plate 2 at the right end of the shell 11. The inner diameter of the clamping ring 42 is the same as the outer diameter of the pipeline 5. The thickness of the clamping ring 42 is the same as the thickness of the end plate 2 at the right end.

[0080] Further, in the embodiment, the half ring 41 and the clamping ring 42 are integrally formed by using nylon material.

[0081] The clamping ring 42 is provided with a traction rope 46. The traction rope 46 and the clamping ring 42 are integrally formed. The other end of the traction rope 46 extends to the outside of the shell 11. The construction personnel can use the traction rope 46 to pull the sliding ring to move. After the sliding ring is slid to the position, the traction rope 46 can be cut off. The pressure of the foaming material during expansion can press the sliding ring on the end plate 2 at the right end.

[0082] Further, in the embodiment, the cutting knife 45 is arranged along the radial direction of the sliding ring and is uniformly arranged around the outside of the sliding ring. The interval of the cutting knife 45 is smaller than the outer diameter of the encapsulation pipe 32. The cutting edge of the cutting knife 45 is in the shape of arc and faces the right end of the shell 11. The top end of the cutting knife 45 is slightly higher than the lowermost edge of the foaming assembly 3, so as to be inserted into the foaming assembly 3 and break the foaming assembly 3.

[0083] In the embodiment,

[0084] In addition, the application also provides an application method of the heat preservation pipe shell which is integrally formed by the pipeline heat preservation and the aluminum skin protection shell, and the application method comprises the following steps.

[0085] Step S1: pre-installation

[0086] Step S11: two half rings 41 are connected and fixed by engaging block 43 and locking screw 44 to form a sliding ring, which ensures that the sliding ring will not be separated during sliding.

[0087] Step S12: prepare the pipeline 5 that needs to be insulated, and set the sliding ring of the trigger structure 4 on the right end of the pipeline 5; the clasp ring 42 of the sliding ring is positioned in cooperation with the outer diameter of the pipeline 5, and the outer diameter of the clasp ring 42 is the same as the inner diameter of the sealing plate 2 at the right end of the shell 11, so as to ensure that the sliding ring can be coaxially guided at the right end sealing plate during subsequent sliding.

[0088] Step S13: set the sealing plate 2 on both ends of the pipeline 5, wherein the inner diameter of the sealing plate 2 at the right end of the shell 11 is the same as the outer diameter of the pipeline 5, achieving close connection with the pipeline 5 to prevent the leakage of foaming material; the inner diameter of the sealing plate 2 at the left end of the shell 11 is slightly larger than the outer diameter of the pipeline 5, providing space for the sliding ring and the traction rope 46; and the inner diameter of the sealing plate 2 at the left end is smaller than the outer diameter of the trigger structure 4, so that the trigger structure 4 will not slip out of the sealing plate 2 at the left end to the outside of the shell 11 after sliding.

[0089] Step S14: put the pipeline 5 with the trigger structure 4 pre-installed thereon and the pipeline 5 with the sealing plate 2 installed into the opening of the prepared insulation shell 1, so that the pipeline 5 is coaxially positioned with the shell 11; at this time, the sliding ring 41 is located in the shell 11, and the initial position is close to the sealing plate 2 at the right end of the shell 11, one end of the traction rope 46 is fixed to the clasp ring 42 and passes out of the shell from the gap between the sealing plate 2 at the left end of the shell 11 and the pipeline 5, which is convenient for external traction.

[0090] Step S2: arrange and paste the foaming assembly 3 on the inner wall of the shell 11

[0091] The foaming assembly 3 is arranged and pasted axially and uniformly along the inner wall of the shell 11, and the foaming assembly 3 should be distributed circumferentially around the pipeline to cover the expected insulation area, so as to ensure that the foaming material can uniformly fill the cavity between the pipeline 5 and the shell 11 when foaming.

[0092] Step S3: roll and lock the shell 11 along the pipeline 5

[0093] The shell 11 with the pasted foaming assembly 3 surrounds the pipeline 5, and the shell side joint is clamped through the first engaging groove 12, and is locked and fixed through the combined hasp 13, and the Z-shaped clamping groove of the limiting plate 14 and the sealing plate 2 are tightly clamped to ensure that the shell is completely surrounded and forms a stable cylindrical shell structure.

[0094] Step S4: check in place and prepare to trigger

[0095] The operator needs to check whether the snap ring 42 of the sliding ring 41 is coaxially aligned with the right end cover plate 2 before triggering, confirm that the traction rope 46 is exposed and can be freely pulled, confirm that the packaging tube 32 of the foaming assembly 3 can be torn at the point break 33, and the top end of the cutting knife 45 is slightly higher than the lowermost end of the foaming assembly 3, so as to ensure that the cutting knife can be inserted and broken when cutting, but not damage the pipeline.

[0096] Step S5: Pull the trigger structure, cut the foaming assembly and foam the pipeline in situ

[0097] The traction rope 46 is pulled by the construction personnel or the outside of the machine, the sliding ring 41 moves axially along the pipeline 5 from right to left, and the cutting knives 45 on the outside of the sliding ring slide along the inner wall of the shell 11, the cutting knives 45 have arc-shaped blades and are directed to the right end of the shell, and the cutting knives 45 are inserted and scraped in turn to break the packaging tube 32 at the point break 33, and the foaming material in the packaging tube is released, reacts with air and moisture in the air, and begins to expand in a short time to fill the cavity between the outer wall of the pipeline 5 and the inner wall of the shell 11 in the circumferential and axial directions, forming a continuous and dense insulation layer.

[0098] Step S6: Foaming, curing and sealing are completed

[0099] The foaming material expands and cures in the shell 11, and is tightly bonded to the outer wall of the pipeline 5 and the inner wall of the shell 11, forming an integrated aluminum skin protection shell and insulation layer structure. Since the right end cover plate 2 is tightly matched with the outer diameter of the pipeline 5, it can prevent the foaming material from leaking during construction and ensure the integrity of the insulation layer. At the same time, the inner diameter of the left end cover plate ensures that the traction structure is movable and the trigger structure 4 cannot slide out of the left end cover plate, achieving sealing. Finally, the traction rope 46 is cut off.

[0100] Step S7: Multi-section connection

[0101] The adjacent shells 11 are connected end to end through the snap ring one and the snap ring two of the clamping groove 25 provided on the limiting plate 14, and the continuous insulation covering of the long pipe section is completed.

[0102] When continuous installation is performed, the first section of the insulation pipe shell and the second section of the insulation pipe shell are connected through the snap ring one 15 and the snap ring two 16 of the clamping groove 25 provided on the limiting plate 14, to form a continuous sealing structure and ensure the tightness of the pipeline insulation.

[0103] The number of workers saved by this method is as follows:

[0104] Taking the construction of a 100-meter-long DN100 air conditioning water pipeline insulation and aluminum skin protection shell as an example

[0105] According to the conventional construction process, two construction processes of inner layer insulation and outer layer aluminum skin are needed, and the materials and labor consumed are as follows:

[0106] (1) Inner layer insulation of pipeline: about 1.3 cubic meters of rubber plastic insulation cotton is consumed, the material cost is about 1300 yuan, 4 labor hours are consumed, and the total labor cost of this process is about 1200 yuan; the auxiliary materials and mechanical cost consumed in this process is 10% of the sum of material and labor cost, which is 250 yuan; the total cost of pipeline insulation process is 2750 yuan;

[0107] (2) Outer layer aluminum skin protection shell of pipeline: about 64 square meters of 0.5 mm aluminum skin is consumed, the material cost is about 3200 yuan; 10 labor hours are consumed, and the labor cost of this process is about 3500 yuan; the auxiliary materials and mechanical cost of this process is 10% of the sum of material and labor cost, which is 670 yuan, and the total cost of pipeline outer layer aluminum skin protection shell process is 7370 yuan;

[0108] Therefore, the total labor and material cost of the conventional construction process is about 10120 yuan.

[0109] According to the technical scheme of the present application, the product can be made into a standard section matching the DN100 pipeline according to the size of the pipeline, each standard section is 1 meter, and the comprehensive cost of 1 meter of the product is about 46 yuan according to the manufacturer's calculation, and the material cost of 100 meters is about 4600 yuan; about 6 labor hours are consumed for construction, and the labor cost is 1800 yuan; the auxiliary materials and mechanical cost is 10% of the sum of material and labor cost, which is 640 yuan, so the total cost required for the construction of 100 meters of DN100 air conditioning pipeline insulation according to the product of the present application is 7040 yuan.

[0110] As can be seen from the above, compared with the conventional construction scheme, the present application can save about 30% of labor and material cost in actual construction.

[0111] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A pipe insulation shell integrally formed with an aluminum protective outer shell, suitable for pipes (5), characterized in that, Includes an insulation shell (1), a sealing plate (2), a foaming assembly (3), and a triggering structure (4): The heat insulation shell (1) includes a shell (11), which is made of a whole sheet of aluminum metal, bent and fixed into a cylindrical structure and fitted outside the pipe (5). The two ends of the shell (11) are respectively sealed and connected to the two ends of the pipe (5) by sealing plates (2). The foaming component (3) is provided in several groups, and each group of the foaming component (3) stores foaming material and is axially distributed on the inner wall of the cylindrical structure to fill the gap between the pipe (5) and the shell (11). The triggering structure (4) includes a slip ring, which is sleeved on one end of the pipe (5) located inside the housing (11). A plurality of cutting blades (45) are radially arranged on the outer side of the slip ring. When the cutting blades (45) slide along the pipe (5), they cut the foaming component (3) to release the foaming material and wrap it around the outer wall of the pipe (5). Among them, the inner diameters of the sealing plates (2) at both ends of the shell (11) are different. The inner diameter of the sealing plate (2) at the right end is defined to be the same as the outer diameter of the pipe (5) to achieve a tight connection with the pipe (5) and avoid material leakage during foaming. The inner diameter of the sealing plate (2) at the left end is defined to be larger than the outer diameter of the pipe (5) and smaller than the trigger structure (4) to leave space for the traction trigger structure (4) and the trigger structure (4) will not slip off the sealing plate (2) at the left end.

2. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 1, characterized in that, The sealing plate (2) includes two C-shaped semicircular plates, one (21) and two (22). The first semicircular plate (21) and the second semicircular plate (22) are connected by a second interlocking groove (23) and fixed by a fixing piece (24) and screws. The sealing plate (2) is provided with a slot (25). The two ends of the housing (11) are provided with limiting plates (14). The limiting plates (14) are stamped into Z-shaped slots that are adapted to the slots (25). The limiting plates (14) and the sealing plate (2) are tightly connected by the Z-shaped slots.

3. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 1, characterized in that, The cylindrical structure of the housing (11) is engaged by a first interlocking groove (12) at the side seam, and a combination buckle (13) is provided on the side of the cylindrical structure, which is used to lock and fix the structure.

4. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 2, characterized in that, The outer surfaces of the limiting plates (14) at both ends of the housing (11) are respectively provided with overlapping rings. The overlapping rings include overlapping ring one (15) provided on the limiting plate (14) at one end of the housing (11) and overlapping ring two (16) provided on the limiting plate (14) at the other end. The two adjacent housings (11) are connected by overlapping ring one (15) and overlapping ring two (16).

5. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 1, characterized in that, The foaming component (3) consists of a base plate (31) and several encapsulation tubes (32). The encapsulation tubes (32) are used to store foaming material. The end faces of two adjacent encapsulation tubes (32) are spaced 4-6 mm apart. The upper part of the base plate (31) is provided with a point break (33) between the encapsulation tubes (32) for quickly cutting off the encapsulation tubes (32).

6. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 1, characterized in that, The slip ring includes two half rings (41), and the ports of the half rings (41) are provided with engagement blocks (43). The two half rings (41) are locked together by engagement blocks (43) and locking screws (44). The end face of the slip ring is provided with a retaining ring (42). The outer diameter of the retaining ring (42) is the same as the inner diameter of the sealing plate (2) at the right end of the housing (11). The inner diameter of the retaining ring (42) is the same as the outer diameter of the pipe (5). The thickness of the retaining ring (42) is the same as the thickness of the sealing plate (2) at the right end.

7. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 6, characterized in that, The retaining ring (42) is provided with a traction rope (46), one end of which is set on the retaining ring (42) and the other end extends to the outside of the housing (11).

8. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 6, characterized in that, The cutting blade (45) has an arc-shaped cutting edge facing the right end of the housing (11). The top of the cutting blade (45) is slightly higher than the bottom edge of the foaming component (3) and is used to insert into the foaming component (3) to break the foaming component (3).

9. The insulated pipe shell with integrated pipe insulation and aluminum protective outer shell as described in claim 1, characterized in that, The shell (11) is stamped with grooves or protrusions to improve the bonding strength between the shell (11) and the foam material (3).

10. An application method for an integrally formed insulated pipe shell with pipe insulation and aluminum protective outer shell as described in any one of claims 1-9, characterized in that, Includes the following steps: Step S1: Pre-installation Step S11: Connect the two half-rings (41) with the interlocking block (43) and the locking screw (44) to form a slip ring; Step S12: Prepare the pipe (5) that needs to be insulated, and put the slip ring of the trigger structure (4) on the right end of the pipe (5); the retaining ring (42) of the slip ring is positioned in accordance with the outer diameter of the pipe (5), and the outer diameter of the retaining ring (42) is the same as the inner diameter of the sealing plate (2) at the right end of the shell (11) to ensure that the slip ring can be guided coaxially at the sealing plate at the right end when sliding later; Step S13: The sealing plates (2) are respectively fitted onto both ends of the pipe (5). The inner diameter of the sealing plate (2) on the right end of the shell (11) is the same as the outer diameter of the pipe (5), so as to achieve a tight connection with the pipe (5) and prevent the foam material from leaking out. The inner diameter of the sealing plate (2) on the left end of the shell (11) is slightly larger than the outer diameter of the pipe (5), so as to leave room for the slip ring and the traction rope (46). The inner diameter of the sealing plate (2) on the left end is smaller than the outer diameter of the trigger structure (4), so that the trigger structure (4) will not slip off the sealing plate (2) on the left end to the outside of the shell (11) after sliding. Step S14: The pipe (5) with the pre-installed trigger structure (4) and the pre-installed sealing plate (2) is inserted into the opening of the prepared insulation shell (1) so that the pipe (5) and the shell (11) are coaxially positioned; at this time, the slip ring (41) is located inside the shell (11) and its initial position is close to the sealing plate (2) at the right end of the shell (11). One end of the traction rope (46) is fixed to the snap ring (42) and passes through the gap between the sealing plate (2) at the left end of the shell (11) and the pipe (5) to facilitate external traction; Step S2: Arrange and attach the foaming component (3) to the inner wall of the shell (11). The foaming components (3) are evenly arranged and fixed along the inner wall of the shell (11). The foaming components (3) should be distributed around the circumference of the pipe and cover the expected insulation area to ensure that the foaming material can evenly fill the cavity between the pipe (5) and the shell (11) when the foaming is cut. Step S3: Roll the housing (11) along the pipe (5) and lock it in place. The shell (11) with the attached foamed component (3) is used to surround the pipe (5) and the side seam of the shell is snapped together by the first interlocking groove (12). At the same time, it is locked and fixed by the combination buckle (13). The Z-shaped groove of the limiting plate (14) and the sealing plate (2) are used to achieve a tight snap-fit, ensuring that the shell is completely surrounded and forms a stable cylindrical shell structure. Step S4: In-place check, ready to trigger Before triggering, the operator needs to check whether the retaining ring (42) of the slip ring (41) is coaxially aligned with the right end sealing plate (2), confirm that the traction rope (46) is exposed and can be pulled freely; confirm that the encapsulation tube (32) of the foaming component (3) can be torn and released at the point break (33), and that the tip of the cutting blade (45) is slightly higher than the bottom edge of the foaming component (3) to ensure that it can be inserted into and broken through the encapsulation tube without damaging the pipe during cutting; Step S5: Pull the trigger structure, cut the foaming component and foam in situ to cover the pipe (5) The traction rope (46) is pulled by the construction personnel or the external machinery. The slip ring (41) moves from right to left along the axial direction of the pipe (5). Several cutting blades (45) on the outside of the slip ring slide along the inner wall of the shell (11). The cutting edge of the cutting blade (45) is arc-shaped and faces the right end of the shell. It is inserted into and scrapes open each set of foaming components (3) in sequence, so that the encapsulation tube (32) is quickly broken at the point break (33). The foaming material inside the encapsulation tube is released. The released foaming material expands in a short time and fills the cavity between the outer wall of the pipe (5) and the inner wall of the shell (11) in the circumferential and axial directions, forming a continuous and dense insulation layer. Step S6: Foaming, curing, and sealing completed. The foamed material expands and solidifies inside the shell (11), and is tightly bonded to the outer wall of the pipe (5) and the inner wall of the shell (11) to form an integrated aluminum protective shell and insulation layer structure. Since the sealing plate (2) at the right end is tightly fitted with the outer diameter of the pipe (5), it can prevent the foamed material from leaking out during construction and ensure the integrity of the insulation layer. At the same time, the setting of the inner diameter of the sealing plate at the left end ensures that the traction structure can move and the triggering structure (4) will not slip off from the sealing plate at the left end. Step S7: Multi-segment connection Adjacent shells (11) are connected end to end through the buckle ring 1 and buckle ring 2 of the slot (25) provided on the limiting plate (14), thus completing the continuous heat insulation coverage of the long pipe section.

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