201 results about "Pipe insulation" patented technology

The invention relates to the technical field of heat preservation and energy conservation, and particularly discloses a system for testing the heat conductivity coefficient of a pipeline heat preservation material under an engineering meteorological environment condition, which comprises a straight pipe test piece with calibration ends fixedly mounted at two ends, and a heat preservation covering material wrapped on the outer wall of the straight pipe test piece to form a pipe fitting to be tested; the ventilation hood is positioned in the sealed space; air pipes at the output end of the air conditioning system are all located in the sealed space, and air outlets of the air conditioning system directly face the ventilation hood. By simulating multi-parameter coupling working conditions such as in-pipe medium temperature gradient, external temperature and humidity / wind speed circulation and mechanical vibration, the heat conductivity coefficient of the material is dynamically corrected, whether the heat conductivity performance of each layer of material meets the standard specification or not is verified, and the rationality of the composite structure is quantitatively evaluated based on a thermal resistance network model. Data support is provided for optimizing the heat preservation layer combination mode and thickness design, and the problem of design deviation caused by the fact that a traditional method cannot reflect actual engineering working conditions is solved.

The invention discloses a flame-retardant rigid polyurethane foam thermal insulation material and a preparation method thereof, and belongs to the crossing field of solid waste resource utilization and halogen-free flame retardance. The thermal insulation material is prepared from the following components in parts by mass: 50 to 150 parts of polyol, 120 to 200 parts of polyisocyanate, 0.2 to 1 part of an organic tin catalyst, 0.5 to 3 parts of a foam stabilizer, 0.5 to 2 parts of an amine catalyst, 0.5 to 5 parts of a chemical foaming agent, 5 to 50 parts of a physical foaming agent, 5 to 50 parts of a transition metal chelated polydopamine modified steel slag flame retardant and 10 to 70 parts of a halogen-free flame retardant. The flame-retardant rigid polyurethane foam thermal insulation material is prepared by modifying the steel slag through chelating the transition metal with the polydopamine and combining with the halogen-free flame retardant. According to the invention, the flame-retardant function of the halogen-free flame retardant is efficiently realized, the synergistic flame-retardant characteristic of the steel slag is fully exerted, and the release of smoke and toxic substances is remarkably reduced. The innovative technology promotes the high-added-value utilization of the steel slag, successfully overcomes the defects of the traditional rigid polyurethane foam thermal insulation material in the aspects of cost and fire safety performance, has wide application potential, and is suitable for multiple fields such as building outer walls, cold-chain logistics and pipeline thermal insulation.

The invention discloses a heat distribution pipeline heat preservation and energy saving device, and relates to the technical field of pipeline heat preservation, in particular to a heat distribution pipeline heat preservation and energy saving device which comprises a heat distribution pipeline and an outer pipe wrapping the heat distribution pipeline, and a rubber pipe capable of deforming is arranged between the heat distribution pipeline and the outer pipe. Through the thermal expansion and cold contraction characteristics of inert gas filled in the extrusion cavity and the arrangement that the first heat preservation cabin is communicated through the first communication opening, when the external environment temperature distribution is uneven, the inert gas in the extrusion cavity of the perpendicular incidence face expands to push the rubber pipe to deform; carbon dioxide in a first heat preservation cabin in a compressed area is transferred to the shady side through a first communication opening, a heat preservation gas layer on the shady side is promoted to expand and thicken, and meanwhile a main movable plate is driven to rotate around a limiting column so that the whole heat preservation structure can deviate. The purposes of dynamically adjusting the thickness of the heat-preservation air layer according to the environment temperature difference, strengthening the heat-preservation effect of the shady face and reducing heat loss are achieved.

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.

The utility model discloses a low-temperature pipeline heat preservation structure, which belongs to the technical field of pipeline heat preservation and comprises a heat preservation layer, one side of the heat preservation layer is fixedly connected with a protective layer, one side of the protective layer is fixedly connected with a sealing layer, one end of the side surface of the sealing layer is fixedly connected with a wire storage block, and a connecting belt is arranged in the wire storage block. The bottom of the connecting belt is fixedly connected with a hook-and-loop fastener mother face, the other end of the side surface of the sealing layer is fixedly connected with a connecting block, and the top of the connecting belt is connected with a hook-and-loop fastener son face. According to the low-temperature pipeline heat preservation structure, the heat preservation layer made of polyurethane can conduct heat preservation on the periphery of the low-temperature pipeline, resilience force and heat insulation performance are good, the low-temperature pipeline heat preservation structure can be better installed on the low-temperature pipeline and tightly attached to the surface of the low-temperature pipeline, and the protection layer can further improve heat preservation efficiency while protecting the heat preservation layer; and the magic tape arranged on the surface of the sealing layer and the protective shell sleeved outside the sealing layer further facilitate the installation of the heat preservation structure.

The utility model discloses a pipeline thermal insulation sleeve, which relates to the technical field of pipeline thermal insulation and comprises a main pipe body and a sheath structure, a first magic tape is attached to the outer surface of the main pipe body, and the sheath structure is arranged on one side, far away from the main pipe body, of the first magic tape. The jacket structure comprises a jacket body, first tightening structures, a rope releasing assembly and a controller, the two first tightening structures are installed on the outer surface of the jacket body, the rope releasing assembly is arranged below the two first tightening structures, and the controller is arranged in the center of the two first tightening structures. When heat preservation is conducted on the pipeline, the situation that the sheath structure slides along the main pipeline due to the shape of the pipeline when the sheath structure is attached to the main pipeline is avoided, meanwhile, when the sheath structure is in the bent shape of the pipeline, the connected sheath structure can be closed through the butt joint belt, and therefore gaps of the bent pipeline area are reduced.

The utility model relates to the technical field of heat insulation of heat distribution pipelines, in particular to a heat insulation device of a corrugated pipe compensator of an annealing furnace, which comprises a casing and a corrugated pipe positioned in the casing, a first fixing pipe is fixed at one end of the corrugated pipe, a second fixing pipe is fixed at the other end of the corrugated pipe, and first glass wool is arranged between the corrugated pipe and the inner wall of the casing. A length-adjustable support is arranged between the first fixing pipe and the second fixing pipe and supports the side, close to the corrugated pipe, of the first glass wool, port connecting pipes are fixed to the ends, away from each other, of the first fixing pipe and the second fixing pipe, extending holes are formed in the two ends of the shell, and the port connecting pipes extend out of the extending holes. The periphery of the port connecting pipe is sleeved with a sleeve, second glass wool is fixed between the inner wall of the sleeve and the outer wall of the port connecting pipe, and a baffle is fixed to the outer wall of the end, inserted into the shell, of the sleeve. The corrugated expansion joint has the technical effects that the corrugated expansion joint is subjected to heat preservation, and the service life of the corrugated expansion joint is prolonged.

The utility model relates to the technical field of air duct heat preservation, in particular to a plateau alpine region tunnel construction ventilation duct heat preservation device which comprises a ventilation duct body, the outer wall of the ventilation duct body is sleeved with a heat preservation sleeve, the heat preservation sleeve comprises an isolation layer, a heat preservation layer and a wear-resisting layer, the heat preservation layer is arranged on the inner side of the isolation layer, and the wear-resisting layer is arranged on the inner side of the heat preservation layer. A heat preservation layer is arranged on the inner side of the heat preservation sleeve, a wear-resisting layer is arranged on the inner side of the heat preservation layer, a groove is formed in the outer wall of the upper end of the isolation layer, a first waterproof adhesive piece is arranged in the groove, a second waterproof adhesive piece is arranged at the lower end of the isolation layer, and adhesive strips are arranged on the left side and the right side of the heat preservation sleeve. The heat preservation sleeve is arranged on the outer side of the ventilation pipeline body, so that the heat preservation effect on the ventilation pipeline body can be achieved on the outer side, water can be prevented from entering the heat preservation sleeve through the isolation layer, the inner side face of the heat preservation sleeve can be prevented from being excessively abraded through the wear-resisting layer, and the heat preservation and durability effects of the heat preservation sleeve are better.

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 low-energy-consumption airtight heat preservation structure for a pipeline out of a roof. The airtight heat preservation structure comprises a roof plate, a roof heat preservation layer, a pipeline, a sleeve, a first pipeline heat preservation layer, a second pipeline heat preservation layer, an indoor waterproof layer, an outdoor waterproof layer, an additional waterproof layer, a vapor barrier layer and a waterproof cover. The sleeve is made of UPVC (Unplasticized Polyvinyl Chloride) and is pre-embedded in the roof The pipeline penetrates through the sleeve, and the top of the pipeline is not lower than the top of the sleeve; a first pipeline thermal insulation layer is arranged in an area between the sleeve and the pipeline; an indoor waterproof layer is arranged at the bottom of the first pipeline heat preservation layer. The indoor part of the pipeline is wrapped with a second pipeline heat preservation layer. The roof insulating layer is laid above the roof panel, a vapor barrier layer is laid at the bottom of the roof insulating layer, and an outdoor waterproof layer and an additional waterproof layer are laid at the top of the roof insulating layer; at the joint of the top of the roof heat preservation layer and the sleeve, the outdoor waterproof layer is folded upwards and extends upwards along the outer wall of the sleeve; a waterproof cover is arranged on the outer wall of the sleeve and located at the closing-up position of the vertical extending section of the outdoor waterproof layer.

The utility model relates to the technical field of heat preservation structures, and provides a novel pipeline heat preservation structure which is used for being arranged beside a part to be subjected to heat preservation and comprises a supporting piece, an outer side heat preservation pipe and a middle heat preservation pipe, the outer side heat preservation pipe and the middle heat preservation pipe are both arranged on the supporting piece, the outer side heat preservation pipe is provided with an inlet, and the middle heat preservation pipe is provided with an outlet. The outer side heat preservation pipe is arranged in the edge direction of the part to be subjected to heat preservation in a surrounding mode, the middle heat preservation pipe is located in the middle of the part to be subjected to heat preservation, and the outer side heat preservation pipe communicates with the middle heat preservation pipe and is used for enabling heat preservation media to flow from the outer side heat preservation pipe to the middle heat preservation pipe. Through the technical scheme, the problems that in the prior art, temperature difference exists between the middle and the periphery of a spinneret plate, and the temperature of all positions of the spinneret plate is not easy to be uniform in a traditional heat preservation mode are solved.

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 utility model discloses a polyurethane pipeline thermal insulation material processing foaming machine which comprises a moving plate, a fixing device and a top cover, universal wheels are fixedly connected to four corners of the lower surface of the moving plate, a cross-shaped storage groove is formed in the middle of the upper surface of the moving plate, and the fixing device is fixedly connected to the middle of the moving plate. A clamping plate is in threaded connection with the fixing device, a material storage tank is installed on the upper surface of a moving plate, a connecting opening is formed in the middle of the top end of the material storage tank, a discharging pipe is fixedly connected to the upper end of the front side of the material storage tank, a top cover is in threaded connection with the inner side of the connecting opening, and a grip is fixedly connected to the outer end of the upper surface of the top cover; a second motor is fixedly connected to the middle of the upper surface of the top cover, a stirring rod is fixedly connected to an output shaft of the second motor, and scraping plates are fixedly connected to the upper end and the lower end of the outer side of the stirring rod. According to the polyurethane pipeline thermal insulation material processing foaming machine, the stirring rod is convenient to disassemble and assemble, and the clamping plates are convenient to shrink to clamp the material storage tank at the same time.

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.

The utility model discloses a pipeline thermal insulation skin laying device for heating and ventilation engineering, which belongs to the technical field of heating and ventilation construction and structurally comprises a lifting frame, a bottom connecting frame and a top connecting frame. The lifting frame is fixedly installed on the lower side of the bottom connecting frame, and the bottom connecting frame is connected with the top connecting frame through the two flexible butt joint assemblies. Stretching arms are rotationally installed at the end of the bottom connecting frame and the end of the top connecting frame respectively, bending edges are arranged on the upper side and the lower side of the protective outer skin respectively, and the bending edges on the two sides are connected with the two stretching arms respectively; by means of the device, the pipeline heat preservation skin can be lifted to a high position from the ground, heat preservation skin laying operation is conducted on the pipeline at the high position, constructors do not need to climb or use a ladder to conduct high-altitude operation, the safety risk of construction is reduced, and the laying efficiency of the heat preservation skin is improved.

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 invention belongs to the field of pipeline heat preservation, and particularly relates to an ultra-thick heat preservation layer fixing structure for a pipeline and a construction method.The ultra-thick heat preservation layer fixing structure for the pipeline comprises the pipeline, hoop devices which are evenly distributed are fixedly installed on the outer wall of the pipeline, each hoop device comprises a hoop, and first pull rods which are distributed circumferentially and diverge outwards in the radial direction are connected to the outer walls of the hoops; a bearing arc plate device is connected to the two axially adjacent first pull rods in a sliding mode, the bearing arc plate device is fixed to the first pull rods in a limited mode through locking nuts, second pull rods facing outwards in the radial direction are arranged in the middle of the bearing arc plate device, and a bearing straight plate device is connected to the two axially adjacent second pull rods in a sliding mode. According to the device, the first pull rod, the bearing arc plate device, the second pull rod and the bearing straight plate device are arranged, so that the stress uniformity during fixed installation of a heat preservation layer is improved, the conditions that an expansion joint of the heat preservation layer is separated and sunken, the upper portion of the expansion joint is compacted and thinned, and the lower portion of the expansion joint is hollow are effectively avoided, and the heat preservation effect is improved.

The invention belongs to the technical field of pipeline heat preservation, and particularly relates to a corrosion-resistant high-temperature heat preservation shell easy to disassemble, a preparation method of the corrosion-resistant high-temperature heat preservation shell and a corrosion-resistant high-temperature heat preservation sleeve easy to disassemble. The invention relates to a preparation method of a corrosion-resistant easy-to-disassemble high-temperature thermal insulation shell, the thermal insulation shell is formed by buckling two half-cavity shells, and the method comprises the following steps: respectively preparing a dicyclopentadiene resin system and an epoxy resin system; the preparation method comprises the following steps: fully stirring a dicyclopentadiene resin system and an epoxy resin system, uniformly mixing, and storing at constant temperature to prepare a mixed resin feed liquid; the mixed resin liquid is injected into a mold, curing, demolding and heating post-treatment are conducted, and the half-cavity shell is prepared. The prepared corrosion-resistant easy-to-disassemble high-temperature heat preservation shell is optimized in formula, improves the glass transition temperature, is more suitable for protection of high-temperature valves and high-temperature pipelines, is not prone to deformation and failure, can replace a traditional metal shell, and has the advantages of being good in heat insulation, resistant to corrosion and capable of being repeatedly used.

The invention relates to the technical field of vehicle exhaust pipeline heat preservation, and particularly discloses a pipeline heat preservation structure, an exhaust system and a vehicle. The heat insulation layer comprises a framework, aerogel and nano zirconium oxide gel, the aerogel is embedded into the framework, the heat conductivity coefficient of the heat insulation layer ranges from 0.025 W / (m.K) to 0.03 W / (m.K), the heat preservation effect is effectively improved, meanwhile, the nano zirconium oxide gel is embedded into the framework, the problem of thermal shock pulverization is effectively solved, and the service life of the heat insulation layer is effectively prolonged; and moreover, through the gradient design of the outer protective layer, the heat insulation layer and the inner flow guide layer which are sequentially arranged, and the outer protective layer and the inner flow guide layer are both made of metal materials, collaborative optimization of corrosion prevention, heat preservation and fluid dynamics of the exhaust system is achieved, and the comprehensive performance of the pipeline heat preservation structure is effectively improved. The problems that in the prior art, a pipeline heat preservation structure can cause collapse of a ceramic fiber felt structure under long-term high-temperature vibration, and the heat preservation performance is degraded are effectively 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 relates to the field of building outer walls, in particular to a pipeline penetrating structure suitable for an outer wall of a fabricated ultra-low-energy-consumption building, which comprises a prefabricated concrete sandwich outer wall component and an outer wall pipeline penetrating structure, the prefabricated concrete sandwich outer wall component is characterized in that the prefabricated concrete sandwich outer wall component is formed by combining a prefabricated concrete outer acanthus (1), a sandwich heat preservation layer (2) and a prefabricated concrete inner acanthus (3), a pipeline (6), heat preservation rock wool (4), a waterproof vapor-permeable film (8) and a waterproof vapor-proof film (9) are arranged in a prefabricated component reserved hole (12), and an exhaust windproof cover (5) and building sealant (7) are further arranged on the outdoor side. The indoor side further comprises a connecting device (10) and a rubber and plastic heat preservation device (11). By the adoption of the technical scheme, the problems of broken bridge heat preservation, air tightness and waterproof leakproofness of the outer wall hole penetrating position of the ultralow-energy-consumption fabricated building are solved, the durability of the building is improved, the installation speed of the building is increased, and building industrialization and green development are promoted.

The invention discloses a steam pipe network thermal insulation layer optimization calculation method, which comprises a parameter acquisition module, a pipeline operation calculation module and a thermal insulation layer optimization module. The parameter acquisition module is responsible for deploying a sensor at the starting end of a target pipeline so as to acquire parameters such as pressure, temperature and flow of a pipeline inlet, and the measured parameters and related design parameters of the target pipeline serve as input values of an optimization calculation method; the pipeline operation calculation module is used for calculating operation parameters of a target pipeline, performing thermal-hydraulic coupling calculation by combining the input values with related design parameters of the target pipeline to obtain the operation parameters of the pipeline, and providing a basis for setting a thermal insulation layer; and the thermal layer optimization module is used for performing optimization calculation on the thermal insulation layer of the target pipeline, and performing optimization calculation on the thermal insulation layer through the operating parameters obtained by the steam thermal power-hydraulic power coupling calculation model by iterating the thickness of the thermal insulation layer based on the life cycle model of the steam pipe network. By means of the method, the heat preservation structure can be optimized according to needs. The thermal insulation material and the thermal insulation structure are adjusted according to different steam heat supply network application scenes, accurate optimization is achieved, thermal insulation material loss and pipeline investment cost are reduced, and the energy utilization rate is effectively increased.

The invention discloses a preparation method of a pipeline heat preservation and insulation block, and the pipeline heat preservation and insulation block prepared by the preparation method of the pipeline heat preservation and insulation block is prepared by mixing cement, fly ash, ceramsite, closed-cell expanded perlite, glass fiber chopped strands and water according to a certain proportion through the steps of dry mixing, wet mixing, mold forming and curing. The method is simple and convenient in process, raw materials are easy to obtain and low in cost, the pipeline heat insulation block prepared through the method can be used for a long time at the temperature of 700 DEG C, the normal-temperature heat conductivity coefficient is smaller than or equal to 0.25 W / (mK), the compressive strength is larger than or equal to 10 MPa, the breaking strength is larger than or equal to 4 MPa, and the dual requirements for strength and heat insulation can be met when the pipeline heat insulation block is used for a pipeline. The problem of energy loss caused by cracking and damage possibly occurring in the transportation, construction and use processes of the pipeline heat preservation and heat insulation block is solved, and the pipeline is effectively protected.

The utility model discloses a full-automatic polyurethane foaming machine for pipeline heat preservation production, and particularly relates to the technical field of polyurethane foaming machines, the full-automatic polyurethane foaming machine comprises a heat preservation storage tank, a cleaning mechanism for cleaning the interior of the heat preservation storage tank is arranged on one side of the heat preservation storage tank, and feeding pipes are fixedly communicated with the two sides of the top of the heat preservation storage tank; the cleaning mechanism comprises a water tank arranged on one side of the heat preservation storage tank, a water pump is fixedly arranged at the top of the water tank, a water inlet of the water pump is fixedly communicated with a water inlet pipe, the bottom end of the water inlet pipe extends into the water tank, a water outlet of the water pump is fixedly communicated with a water outlet pipe, and one end of the water outlet pipe extends into the heat preservation storage tank. According to the device, the interior of the heat preservation storage tank can be cleaned through the cleaning mechanism, the cleanliness of the interior of the heat preservation storage tank is guaranteed, a large amount of manpower is saved, impurities in polyurethane mixed liquid can be filtered through the filtering mechanism, and the situation that the foaming ejector is blocked by the impurities, and the foaming efficiency is affected is avoided.

The utility model discloses a moisture-proof pipeline heat preservation device, which relates to the technical field of pipeline heat preservation, and comprises a plurality of groups of heat preservation sleeves, the heat preservation sleeves are divided into an upper layer and a lower layer, a connecting and fixing ring is arranged between each group of heat preservation sleeves, the connecting and fixing rings are divided into an upper layer and a lower layer, and the two ends of each connecting and fixing ring are respectively provided with a fixing head. A fixing bolt is arranged in the middle of the fixing head, a threaded ring is arranged at the position, below the fixing head, of the lower end of the fixing bolt, a rotary supporting rod is arranged at the lower end of the connecting fixing ring, a movable plate is arranged at the lower end of the rotary supporting rod, and a threaded sleeve is arranged in the middle of the lower end of the movable plate. A threaded rod is arranged at the lower end of the threaded sleeve, and a supporting bottom plate is arranged at the lower end of the threaded rod. The damp-proof pipeline heat preservation device is more convenient to assemble, the fitting effect between the damp-proof pipeline heat preservation device and a pipeline is better, and the supporting device can adapt to the ground with different heights.