90 results about "Pipe insulation" patented technology

The utility model discloses a split type pipeline heat preservation module with an aerogel heat insulation layer, which relates to the field of pipeline heat preservation equipment, and adopts the technical scheme that the split type pipeline heat preservation module comprises a sleeve body, and a plurality of groups of arc-shaped pipe pieces which are sequentially and rotatably connected end to end of the sleeve body, the shells of every two adjacent pipe pieces are rotationally connected through a hinge structure. An elastic buffer layer, a reflective aluminum foil layer and an aerogel heat insulation layer are sequentially arranged on the inner wall of the shell of each group of duct pieces, and the elastic buffer layer is bonded and fixed with the inner wall of the shell; a plurality of hasps are fixedly arranged on the shell located at one end, a plurality of connecting rings are arranged on the shell located at the other end, and when the sleeve body is arranged on the outer side of a pipeline in a sleeving mode, the hasps are fixedly connected with the connecting rings. The utility model has the beneficial effects that the modular detachable design is adopted, so that the mounting and the dismounting are convenient and fast, and the thermal insulation performance and the construction efficiency of the pipeline joint coating are obviously improved.

This utility model relates to an insulation structure for overhead steam pipelines, comprising, from the inside out, a first insulation layer, a second insulation layer, a third insulation layer, a fourth reflective layer, a fifth insulation layer, a first top layer, a second top layer, and a protective layer arranged sequentially outside the overhead steam pipeline. First reflective layers are respectively disposed between the first and second insulation layers and between the second and third insulation layers; second reflective layers are respectively disposed between the third and fourth insulation layers and between the fourth and fifth insulation layers; and a third reflective layer is disposed between the second top layer and the protective layer. This utility model, by sequentially setting five insulation layers and coordinating the first and second reflective layers between them, can achieve insulation of the overhead steam pipeline, reducing energy loss and energy consumption. The first top layer, second top layer, and protective layer protect the overhead steam pipeline, the insulation layers, and the reflective layers, improving the overall structural stability and service life.

The utility model discloses a heat supply pipeline heat preservation airtightness detection device, the utility model discloses a first arc plate and second arc plate are connected with each other through a plurality of connecting components, connecting component includes connecting plate no.

The utility model discloses a novel drainage pipeline heat preservation device which comprises a mother pipe and a drainage pipe connected with the mother pipe, mother pipe side heat preservation cotton and a mother pipe side protection shell are sequentially arranged on the outer side of the mother pipe from inside to outside, and drainage pipe side heat preservation cotton and a drainage pipe side protection shell are sequentially arranged on the outer side of the drainage pipe from inside to outside. When the drain pipe is communicated with the mother pipe, the drain pipe side heat preservation cotton can be inserted into the mother pipe side heat preservation cotton, the sealing position of the drain pipe and the mother pipe is coated with the connection position heat preservation cotton and the connection position protection shell, and the connection position protection shell is connected with the drain pipe side protection shell and the mother pipe side protection shell through fasteners. After the technical scheme is adopted, the heat insulation device for the drain pipeline can reduce the heat loss of the pipeline, prolong the service life of the drain pipeline and save the use cost.

The invention discloses a heat-preservation heat tracing pipeline installation method. The invention belongs to the technical field of pipeline heat preservation and heat tracing, and particularly relates to a heat preservation and heat tracing structure mounting method for a high-temperature pipeline of a sulfur recovery device, which comprises the following steps of: pretreating the surface of the pipeline, welding a supporting piece group, mounting a heat tracing system, coating a galvanized welded wire mesh, mounting a heat preservation layer, and finally assembling an outer protective layer. A unique'heating space 'is formed according to the steps, so that the inner wall of the thermal insulation layer is separated from the high-temperature process pipeline and the outer wall of the heat tracing pipe by a relatively static air layer, the heat loss is effectively reduced, and the heat tracing efficiency is improved; and natural convection of air in the heating space can also enable the circumferential temperature of the pipeline to be more uniform, so that the energy-saving effect is improved.

The present utility model relates to the technical field of pipeline insulation. Disclosed is a cryogenic pipeline insulation structure, comprising an insulation layer, wherein a protective layer is fixedly connected to one side of the insulation layer, a sealing layer is fixedly connected to one side of the protective layer, a wire storage block is fixedly connected to one end of a side surface of the sealing layer, a connecting strap is arranged inside the wire storage block, a loop side of a hook-and-loop fastener is fixedly connected to the bottom of the connecting strap, a connecting block is fixedly connected to the other end of the side surface of the sealing layer, and a hook side of the hook-and-loop fastener is connected to the top of the connecting strap. In the cryogenic pipeline insulation structure, the insulation layer made of polyurethane can provide thermal insulation around the cryogenic pipeline, has good resilience and thermal insulation properties, and can be better installed onto the cryogenic pipeline to closely fit the surface thereof; moreover, the protective layer can further improve the thermal insulation efficiency while protecting the insulation layer; besides, the hook‑and‑loop fastener provided on the surface of the sealing layer and a protective shell sleeved outside the sealing layer further facilitate installation of the insulation structure.

To provide a pipeline heating and valve-controlled exhaust system in which the valve control mechanism not only enhances the overall airflow control capability but also extends the cleaning cycle and maintenance interval, thereby reducing the risk of equipment downtime. [Solution] The front connection module 110 includes a front insulation space and a heating guide element 114 that heats the front insulation space; the elbow guide module 120 includes an elbow insulation space communicating with the front insulation space and a pressure detection unit 124 that detects the gas pressure in the elbow insulation space; the exhaust control module 130 includes a flow path opening 132 communicating with the elbow insulation space and a flow path valve element 134, the flow path valve element 134 shields a part of the flow path opening 132 to define an unshielded area, and when the pressure detection unit 124 detects a change in gas pressure, the flow path valve element 134 moves to adjust the unshielded area of ​​the flow path opening 132.

The invention discloses a thermal pipeline leakage monitoring method and system based on digital twinning, and relates to the technical field of data processing, and the method comprises the steps: collecting pipe wall temperature time sequence data through a distributed temperature sensing array pre-buried in a pipeline thermal insulation layer; constructing a virtual thermodynamic resonant cavity model in the digital twin, and generating a theoretical thermal oscillation reference frequency in a leakage-free state based on pipeline physical attributes and medium flow parameters; performing spectrum analysis on the pipe wall temperature time sequence data, extracting an abnormal frequency shift characteristic of an actual thermal oscillation spectrum relative to a theoretical thermal oscillation reference frequency, and when the intensity of the abnormal frequency shift characteristic continuously exceeds a first preset threshold value, outputting a primary leakage early warning signal and a corresponding first leakage position; and calling a whole life cycle temperature history record of the associated pipe section of the first leakage position, combining the accumulated thermal stress value, and if the accumulated thermal stress value exceeds a material fatigue threshold value and the strength of the abnormal frequency shift characteristic exceeds a second preset threshold value, judging that the leakage is structural damage leakage.

The utility model discloses a heat distribution pipeline heat preservation energy-saving device which comprises a heat preservation pipeline and a conveying pipeline, the heat preservation pipeline is composed of an outer pipe and an inner pipe, the inner side of the inner pipe is fixedly connected with a supporting rod, and the end, close to the conveying pipeline, of the supporting rod is fixedly connected with a rubber pad; a vacuum layer and fixing rings are arranged between the outer pipes and the inner pipes, the vacuum layer is located between the fixing rings on the two sides and fixedly connected with a supporting ring, connecting grooves are formed in the ends, close to each other, of the outer pipes on the two sides, limiting grooves are formed in the connecting grooves, connecting rings are arranged on the connecting grooves, and limiting strips are arranged in the connecting rings. The limiting strips are located in the limiting grooves, and sealing gaskets are fixedly connected to the inner rings, close to the limiting grooves, of the limiting strips. Through the structure, the problems of poor heat preservation effect and poor protection capability are solved.

The application relates to the technical field of pipeline heat preservation, and discloses a quick dismounting type pipeline heat preservation clothing, which comprises a heating pipeline, and a heat preservation assembly is arranged on the outer side of the heating pipeline; the heat preservation assembly comprises a heat preservation clothing body, the heat preservation clothing body is composed of an outer layer sleeve and an inner layer sleeve, and an air-filled interlayer is reserved between the outer layer sleeve and the inner layer sleeve; a double anti-convection structure of physical separation and solid-state heat insulation medium suspension is formed through the air-filled interlayers of the units and aerogel powder in the air-filled interlayers; air transverse and longitudinal flow is blocked from the source; the inner layer is uniformly extruded from an initial state of being attached to the outer layer by air filling of an air pump; a zero-gap wrinkle-attached structure is formed by closely covering the outer wall of the pipeline; the convection gap between the pipeline and the heat preservation layer is completely eliminated; the sealing stability of the connecting part in the special-shaped pipeline scene is ensured; finally, the high-efficiency heat preservation system without the convection gap and suitable for the special-shaped pipeline is constructed through the cooperation of the anti-convection independent air chamber, the special-shaped structure of the high-elastic material and the like; and the heat conduction loss is reduced.

The invention discloses a heat preservation layer and electric heat tracing configuration method for industrial equipment and pipelines, belongs to the technical field of heat preservation and heating of the industrial equipment and the pipelines, and can solve the problem that an existing configuration method does not comprehensively consider a heat preservation layer and an electric heat tracing system, so that the configuration reasonability is poor. The method comprises the following steps: S1, determining operation parameters of industrial equipment and a pipeline, environmental parameters of an environment where the industrial equipment and the pipeline are located, and material parameters of a thermal insulation layer; s2, determining the design thickness of the thermal insulation layer and the design power of the electric heat tracing system when the temperature of the outer surface of the thermal insulation layer reaches a plurality of different preset temperatures according to the operation parameters, the environment parameters and the material parameters; the design thickness and the design power corresponding to each preset temperature form a group of configuration schemes; and S3, determining the construction cost and the operation maintenance cost corresponding to each group of configuration schemes, and determining the optimal configuration scheme from the plurality of groups of configuration schemes according to the construction cost and the operation maintenance cost. The invention is used for configuring the thermal insulation layer and the electric heat tracing.

The utility model belongs to the technical field of water supply and drainage, and particularly relates to an anti-freezing device for building water supply and drainage, which comprises an anti-freezing heating box, a water outlet pipe is mounted above one side of the anti-freezing heating box, a water inlet pipe is mounted below one side of the anti-freezing heating box, and mounting plates are mounted in the water outlet pipe and the water inlet pipe. A U-shaped electric heating pipe is mounted on one side of the mounting plate, and a box cover is arranged on the top of the anti-freezing heating box. Water enters the anti-freezing heating box through a water inlet pipe, the water is heated through a first spiral electric heating pipe and a second spiral electric heating pipe, hot water is output through a water outlet pipe, accordingly, water freezing and solidification are avoided, the anti-freezing effect is improved, the interior of a pipeline is heated through a U-shaped electric heating pipe, and the anti-freezing effect is improved. The water inlet pipe and the water outlet pipe are prevented from being frozen to cause blockage, the anti-freezing effect is improved, and detachable pipeline heat preservation sleeves are arranged on the surfaces of the water inlet pipe and the water outlet pipe to protect the water inlet pipe and the water outlet pipe.

The utility model discloses an assembly type pipeline heat preservation structure which comprises a pipeline block, the outer side of the pipeline block is movably connected with a heat preservation layer, the outer side of the heat preservation layer is movably connected with a first protection shell and a second protection shell, and the first protection shell and the second protection shell are attached together. Protection structures are arranged on the outer side of the first protection shell and the outer side of the second protection shell, fixing structures are arranged on the outer sides of the protection structures, the protection structures comprise first arc-shaped blocks, the first arc-shaped blocks are fixedly connected to the outer side of the first protection shell, and second arc-shaped blocks are fixedly connected to the outer side of the second protection shell. Compared with the prior art, due to the arrangement of the first protective shell, the second protective shell, the protective structure and the fixing structure, when the thermal insulation layer is damaged and the protective structure needs to be detached for replacement, workers can replace the thermal insulation layer without tools, the workload of the workers is reduced, time and labor are saved, and convenience and rapidness are achieved.

The present application relates to a kind of high temperature heat supply pipeline insulation coating, it includes high temperature resistant layer, transition buffer layer and waterproof function layer sequentially arranged in the surface of pipeline from inside to outside;Wherein, the high temperature resistant layer is uniformly coated by the high temperature resistant aerogel insulation coating with dry film thickness of 2~4mm, the transition buffer layer is uniformly coated by the normal temperature aerogel insulation coating with dry film thickness of 3~5mm, the waterproof function layer is uniformly coated by the polymer cement waterproof coating with dry film thickness of 0.1~0.3mm.The present application can be firmly attached to the surface of high temperature heat supply pipeline and its valve etc metal matrix by unique gradient composite structure design, significantly improve its long-term insulation performance and protection reliability under high temperature, high humidity and cold and hot cycle conditions, while having excellent construction adaptability.

The utility model discloses a heating and ventilation pipeline thermal insulation layer cutting and laying device which comprises a processing frame and a cutting mechanism, the cutting mechanism is arranged at the top of the processing frame, the processing frame is of a U-shaped structure, a bearing plate is arranged below the cutting mechanism, the bearing plate is horizontally arranged at the top of the processing frame, and guide roller rods are symmetrically and rotationally arranged below the processing frame. According to the thermal insulation layer cutting device, the thermal insulation layer is assisted to penetrate through the processing frame through the guide roller rod, the cutting blade is in contact with the thermal insulation layer, cutting of the thermal insulation layer is achieved, the thermal insulation layers with different lengths can be cut, and the problem that in the prior art, when the thermal insulation layer is cut, the thermal insulation layer cannot be cut easily is solved. The problems that a heat preservation layer needs to be placed on an arc-shaped bottom plate, due to the arrangement of a supporting plate, the length of the heat preservation layer is limited to a certain degree, and the overlong heat preservation layer cannot be cut are solved.

This invention relates to the field of digital design technology for power engineering and industrial pipelines, and particularly to a pipeline insulation design optimization method and system based on the integration of intelligent pipeline PID and E3D. The method generates insulation design results at the intelligent PID end by calling a knowledge base based on process parameters, and binds these results to the pipeline's unique identifier code to generate a data package. This data package is then transmitted to the E3D platform via middleware, where the identifier code is used to accurately match the 3D pipeline model, and the design results are written into the model's custom attributes to establish a mapping relationship. An engineering-grade insulation material library containing material properties and loss algorithms is built within E3D. Finally, the model's geometric parameters and insulation properties are automatically extracted, and the material library algorithm is used to calculate the final material consumption. This invention breaks down the data silos between 2D processes and 3D models, achieving end-to-end automation from insulation selection to engineering quantity calculation, significantly improving calculation accuracy and enabling agile response to design changes.

A method of insulating a piping system. The method may comprise coupling an uncured insulation substrate to the piping system and setting the uncured insulation substrate to cure the uncured insulation substrate to a cured insulation substrate.

The invention belongs to the technical field of polyurethane, and particularly relates to a rigid polyurethane foam material for a high-temperature-resistant pipeline and a preparation method of the rigid polyurethane foam material. The polyurethane foam is prepared from a component A and a component B according to the mass ratio of 100: (130-150), and the component A comprises the following raw materials in percentage by mass: 7-36% of polyether polyol A; 13 to 35 percent of polyether polyol B; 13 to 37% of polyether polyol C; 3-8% of a catalyst; 3-14% of an auxiliary agent; 0.3%-4.2% of a dispersing agent; 1.3 to 2.5 percent of foam stabilizer; 6-15% of a pentane foaming agent; and the component B is polymethylene polyphenyl isocyanate. Through specific polyether compounding, nano zirconium dioxide and the dispersing agent are added, and the ratio of the component A to the component B is optimized, so that the high temperature resistance, the compression strength and the dimensional stability of the polyurethane foam are greatly improved, and the polyurethane foam is suitable for preparing a pipeline thermal insulation material.

This utility model relates to the field of HVAC duct insulation, specifically to an HVAC duct insulation device, including an exposed pipe with connecting pipes welded to both sides. A heating component is installed in the middle of the exposed pipe for heating and insulation. The exposed pipe includes an exposed inner steel pipe and an exposed outer steel pipe, with a first gap between them. The HVAC duct insulation device of this utility model facilitates heating and insulation of the exposed pipe through the heating component installed in the middle. By adjusting the adjusting cap in the reverse direction, the binding component can be released from fixing multiple arc-shaped pieces, facilitating the replacement of insulation cotton. By installing the removed arc-shaped pieces onto an auxiliary pad, and by adjusting the adjusting cap in the forward direction, the position of the arc-shaped pieces on the auxiliary pad can be quickly and easily fixed through the transmission of the binding component.

According to the technical scheme, the heat preservation structure of the heating and ventilation pipeline is characterized in that the heat preservation structure of the heating and ventilation pipeline comprises two connecting sleeves, the connecting sleeves are semicircular pipes, and the two connecting sleeves are arranged outside the heating and ventilation pipeline in a sleeving mode to form a complete circular pipe; two connecting plates are arranged on each connecting sleeve; the auxiliary plate is arranged in the radial direction of the connecting sleeve and located in the middle of the arc of the connecting sleeve; the number of the arc-shaped plates is four, the two connecting sleeves correspond to the two arc-shaped plates respectively, two containing spaces are formed between the auxiliary plate and the two connecting plates on the same connecting sleeve respectively, and each arc-shaped plate corresponds to one containing space; and a thermal insulation layer. The heat preservation layer is arranged in the containing space, after the heat preservation layer is aged, only the arc-shaped plate needs to be detached, the aged heat preservation layer is taken down and replaced, the replacement operation is simplified, and the attaching degree of the newly-replaced heat preservation layer cannot be affected.

The invention relates to the field of electroosmosis insulation, in particular to an insulation device and method for an anode connecting wire pipe of an electroosmosis anti-seepage moisture-proof system.The insulation device comprises an expansion sleeve, the top of the expansion sleeve is fixedly connected with a base, the bottom of the base is fixedly connected with a reinforcing rib, and the reinforcing rib is fixedly connected to the top end of the expansion sleeve; a screw is inserted into the inner side of the expansion sleeve, an insulating supporting assembly is arranged at the top of the base and comprises a bottom adjusting assembly and a top adjusting assembly, and a fixing assembly is arranged at the top of the insulating supporting assembly. Aiming at the problem that the insulation treatment of a galvanized pipe is difficult to adapt to long-term stable operation in the construction of an electro-osmosis anti-seepage and moisture-proof system, the invention provides the following technical scheme: by arranging a physical insulation supporting assembly, permanent insulation isolation of the galvanized wire pipe and a base layer is realized, the insulation performance is more stable, the durability is stronger, and the service life is prolonged. And the problem of insulation failure caused by abrasion and aging of the insulating layer is effectively avoided.

The application provides a kind of area heating pipeline insulation layer partition pipe fittings and its installation method.The application includes: medium conveying steel pipe, steel sealing fixed disc, sealing rubber ring, sealing ring plate, pressing disc, tightening disc, fastener and wing ring, both ends of the medium conveying steel pipe are connected with the pipeline to be connected respectively, the steel sealing fixed disc is sleeved on the outside of the medium conveying steel pipe, the sealing ring plate and the pressing disc are sequentially sleeved on the medium conveying steel pipe, the tightening disc is sleeved on the medium conveying steel pipe and there is a preset distance between the tightening disc and the pressing disc, the pressing disc drives the sealing ring plate to be pressed on the steel sealing fixed disc through the fastener, the wing ring is sleeved on the outer layer of the above components, and the connection between the outer layer of the medium conveying steel pipe and the insulation layer of the pipeline to be connected is completed through the wing ring.The application can avoid the problem that the extension of water inlet of old pipeline causes damage and destruction of newly built or newly repaired pipeline, and the problem that the connection between monitoring partitions is affected due to sealing defects of the outer protective tube.

The invention provides a tandem type alkaline water electrolysis hydrogen production system and a control method, the tandem type alkaline water electrolysis hydrogen production system comprises a first electrolysis group and a second electrolysis group, each electrolysis group is provided with a plurality of electrolysis units connected in series, and different electrolysis groups are connected in parallel; the insulation module comprises a contact insulation module and a pipeline insulation module; the electrolysis unit comprises an electrolytic cell, and a hydrogen separator and an oxygen separator which are connected with the electrolytic cell, the hydrogen separator and the oxygen separator are respectively provided with a gas outlet and a liquid outlet, and the liquid outlet is communicated with the next-stage electrolytic cell; electrodes of the electrolytic cells are connected to the power supply, the cathode side of the electrolytic cell is connected with the cathode of the power supply, otherwise, the anode side, an alkali liquor inlet of the electrolytic cell in the electrolysis group A is positioned on the cathode side, and an alkali liquor inlet of the electrolytic cell in the electrolysis group B is positioned on the anode side; the cathode side is equipotential with the alkali liquor inlet / outlet, and the anode side is equipotential with the alkali liquor inlet / outlet. Alkali liquor flow is matched with potential distribution, and electric leakage corrosion is inhibited.

The invention discloses continuous forming and cutting equipment for a pipeline thermal insulation material, relates to the technical field of production equipment for the pipeline thermal insulation material, and provides the following scheme that the continuous forming and cutting equipment comprises a workbench and further comprises a conveying mechanism, a cutting mechanism, a cutting mechanism and a cutting mechanism, and the conveying mechanism is arranged on the workbench and used for automatically conveying the to-be-machined pipeline thermal insulation material; the cutting distance adjusting mechanism is arranged on the top of the workbench and used for adjusting the cutting size according to different cutting size requirements; and the cutting mechanism is located on the top of the workbench, located on one side of the cutting distance adjusting mechanism and used for continuously cutting the conveyed to-be-machined pipeline thermal insulation material. Non-linear and variable-size cutting can be accurately achieved, errors are reduced, continuous synchronous operation is achieved through single-power-source multi-path transmission, efficiency is improved, meanwhile, the supporting area can be flexibly adjusted, materials of different specifications can be adapted, conveying deviation is avoided, the machining precision is guaranteed, the structure is compact, operation is convenient and fast, and the cost is controllable.

The invention discloses a pipeline heat preservation device which comprises a cavity part, a heat preservation part and a heat preservation part, the cavity part can be connected to the outer side of a pipeline in a sleeving mode, and the cavity part comprises an upper barrel-shaped piece and a lower barrel-shaped piece; a cavity is formed between the upper barrel-shaped piece and the lower barrel-shaped piece when the upper barrel-shaped piece and the lower barrel-shaped piece are folded; the folding state between the upper barrel-shaped piece and the lower barrel-shaped piece is fixed through a locking part; when the lower barrel-shaped piece and the upper barrel-shaped piece are folded, the buckle is automatically triggered to be unlocked, and the sliding part accurately moves along the guide rail; when the sliding part moves, the long plate is driven to abut against the arc-shaped plate, targeted vibration is generated through mechanical linkage and directly acts on the foaming material in the cavity, initial bubbles are effectively broken, the sliding part can circularly move around the cavity by a circle, all-directional and dead-corner-free vibration of the foaming material is achieved, bubbles are promoted to be gathered, floated and broken, internal pores of a heat preservation layer are reduced, and the percentage of closed porosity is increased. During disassembly, the sliding part resets to trigger linkage of the abutting face, the buckle slides to unlock the cavity after the protruding block is separated, the disassembly process is simple and efficient, and the requirement for on-site rapid construction is met.

The utility model discloses a heat preservation structure for long-distance conveying of a heat supply network pipeline, and belongs to the technical field of heat supply network circulating systems. A heat preservation structure for long-distance conveying of a heat supply network pipeline comprises a working steel pipe, a heat preservation layer and a mounting assembly. The heat preservation layer is arranged on the outer side of the working steel pipe in a nested mode, and an inwards-sunken mounting groove is formed in the surface of the heat preservation layer. The mounting assembly comprises a mounting base, the mounting base is matched with the mounting groove in an inserted mode, and the mounting base is detachably connected with the heat preservation layer; the thermal insulation layer comprises a left cylinder and a right cylinder; the left barrel body and the right barrel body are symmetrically arranged on the two sides of the working steel pipe respectively, and the left barrel body and the right barrel body abut against each other; the heat preservation structure of the heat supply network pipeline can be disassembled and replaced conveniently, workers can maintain the heat supply network pipeline conveniently, and the heat supply network pipeline keeps good heat preservation performance.

This utility model provides a self-adhesive pipe insulation material production device, including a mobile chassis, an aerogel felt feeding mechanism, a backing paper feeding mechanism, a coating spraying mechanism, an adhesive application mechanism, a turning roller, an adhesive roller, and a receiving mechanism. The coating spraying mechanism sprays coating onto one side of the aerogel felt fed from the aerogel felt feeding mechanism. The turning roller turns the coated aerogel felt over. The adhesive application mechanism applies adhesive to the turned aerogel felt. The adhesive roller adheres the backing paper fed from the backing paper feeding mechanism to the adhesive-coated side of the aerogel felt. The receiving mechanism winds up the aerogel felt with the backing paper adhered to it. This device can complete the coating, adhesive application, and backing paper adhesion on a single machine, achieving continuous production of insulation materials.

The U-shaped staple bolt comprises an arc-shaped part, two extension parts and two pin parts which are connected together, a rotating groove, a screwing groove and a vertical displacement groove which are communicated are formed in the pin parts, a rotating rod is rotationally arranged in the rotating groove, a rectangular transmission rod is arranged at the top end of the rotating rod and matched with a transmission clamping groove in a clamped mode, and the arc-shaped part, the two extension parts and the two pin parts are connected together. The rotating rod is provided with a folding and unfolding type anti-falling assembly, and the folding and unfolding type anti-falling assembly comprises a displacement sleeve, two anti-falling blocks and two linkage blocks. The split-type heat-insulating pipe is of a split-type structure, is convenient to disassemble and assemble, can be used repeatedly after being disassembled from the heat-insulating layer of the pipeline, and is not disposable; three different forms, namely a form with a pin part, a form with a pure anti-falling part and a form with the pin part and the anti-falling part, can be combined for use, so that different use requirements can be met; in addition, during use, the connection anti-falling performance of the pipeline insulation layer can be improved, so that the positioning, pressing and limiting effects on the pipeline are prevented from being influenced by easy separation.

This utility model discloses an integrated production line for steel pipe insulation and 3PE anti-corrosion, relating to the technical field of steel pipe anti-corrosion and insulation processing. It includes: an external rust removal line equipped with an external rust removal machine for removing rust, scale, and impurities from the outer surface of the steel pipe; a spraying line equipped with a spraying machine for applying polyurethane coating to the rust-removed steel pipe; and a winding transmission line with adjacent PE extruders and AD extruders. The PE extruder is used for coating the outer wall of the steel pipe with a polyethylene anti-corrosion layer. The AD extruder is used to extrude adhesive, which serves as the bonding medium for the anti-corrosion layer of the steel pipe and works in conjunction with the PE extruder. This utility model achieves rapid conversion between anti-corrosion and insulation processes through AD extruder slide rail switching, and automatically adjusts the roller conveyor with an intelligent control console. The "reciprocating" layout increases the temporary storage capacity of steel pipes and facilitates rapid process connection, thereby improving overall production efficiency.