3875results about "Thermal insulation" patented technology

The invention provides a core material for a vacuum insulation panel, the vacuum insulation panel and a preparation method and application of the vacuum insulation panel. The core material for the vacuum insulation panel comprises aramid fibers and a binding material, and the aramid fibers comprise at least one of poly (m-phenylene isophthalamide) fibers, poly (p-phenylene terephthalamide) fibers and heterocyclic aramid fibers; the length of the aramid fiber ranges from 1 mm to 10 mm. The vacuum insulation panel comprises a core material for the vacuum insulation panel and a barrier film material, and the barrier film material wraps the core material for the vacuum insulation panel. In the process of preparing the vacuum insulated panel and the process of cutting and producing the core material for the vacuum insulated panel, dust and fine fibers are not generated, and environmental pollution and health risks are avoided.

An aerogel composite has excellent thermal stability even when exposed to a high-temperature environment, thereby being capable of maintaining high heat insulation.

A pipe supporting structure includes: a plate-like member being into contact with an outside surface of a pipe; a tube-like member having a tubular shape and configured to support the plate-like member; and a base configured to support the tube-like member, wherein the plate-like member includes a supported portion supported by the tube-like member and an inner side portion surrounded by the supported portion, and the inner side portion has a smaller heat capacity per unit volume than the supported portion.

A breakaway valve for a cryogenic fluid tank includes a tank-side valve and a nozzle-side valve. The tank-side valve is connected to and forms a first vacuum-insulation layer with a first jacketed hose. The first jacket support includes first bellows configured to reduce heat transfer with the first vacuum-insulation layer and one or more first bellow supports that include first teeth inserted between and engaging the first bellows to provide structural support to the first bellows. The nozzle-side valve is connected to and forms a second vacuum-insulation layer with a second jacketed hose. The second jacket support includes second bellows configured to reduce heat transfer with the second vacuum-insulation layer and one or more second bellow supports that include second teeth inserted between and engaging the second bellows to provide structural support to the second bellows.

To provide a drain hose for air conditioning which enables improvement of workability related to connection between a drain pipe of an indoor unit and the drain hose for air conditioning.SOLUTION: A drain hose for air conditioning includes: a hose part 11 in which drain water discharged from a drain pipe provided in an indoor unit of an air conditioner flows; and a connection part 20 which is provided at an end 12 of the hose part 11 so as to connect the drain pipe with the hose part. The connection part 20 has: a connection pipe 30 to be connected to the drain pipe; and a guide part 40 which guides a tip of the connection pipe 30 to the drain pipe when the connection pipe 30 is connected to the drain pipe. The guide part 40 has a first recessed part 50 disposed in a position spaced apart from a tip of the connection pipe 30 in a direction from a root of the connection pipe 30 toward the tip of the connection pipe 30. When viewed from a direction along an axis of the connection pipe 30, a side surface of the first recessed part 50 is located at the outer side of the connection pipe 30 with respect to the axis of the connection pipe 30.SELECTED DRAWING: Figure 4

The utility model discloses a submarine pipeline steam conveying system which comprises a steam conveying pipeline, and the steam conveying pipeline comprises a working inner pipe, a protective outer pipe and a heat preservation structure arranged between the working inner pipe and the protective outer pipe. The heat preservation structure comprises an inner heat preservation layer, a first reflecting layer and an outer heat preservation layer which are sequentially arranged on the outer side face of the working inner pipe from inside to outside, and an air layer is formed between the inner side face of the protective outer pipe and the outer heat preservation layer; an anti-corrosion layer is arranged on the outer surface of the protective outer pipe, the steam conveying pipeline is of a pipeline form that a heat preservation structure is embedded in a double-layer sleeve, the heat dissipating capacity of the pipeline is reduced, a better heat preservation effect is obtained, and economical efficiency can be considered under the condition that the heat dissipating capacity is guaranteed by means of the heat preservation structure and an air layer. Even if the thermal insulation structure is broken, seawater cannot be in direct contact with the working inner pipe due to the protection of the protective outer pipe, so that the safety of the working inner pipe is ensured. The requirements of the steam pipeline and the marine environment can be met, and the steam conveying pipeline can be laid on the seabed.

The invention relates to the related field of heat insulation composite material processing, in particular to an aerogel heat insulation pipe shell and a preparation method and application thereof, and the aerogel heat insulation pipe shell is composed of a fiber needled felt without a binder and silicon dioxide aerogel. The manufacturing method comprises the steps of fibrofelt cutting and pre-rolling, sol preparation, rotary dynamic gel forming, supercritical drying, two-end trimming and opening treatment, and the tubular prefabricated part which is accurate in size, convenient and fast to install and capable of replacing aerogel felt is mainly applied to various pipelines and cylindrical equipment needing heat insulation and insulation. Loss of on-site construction materials and consumption of auxiliary materials can be effectively reduced, the construction period is shortened, and the heat insulation engineering quality is improved.

The utility model relates to the technical field of heat preservation, in particular to a heat preservation sleeve which comprises a heat preservation sleeve body, a first hook-and-loop fastener and first caulking filler. The first Velcro comprises a first Velcro hook surface, a first lap joint block and a first Velcro rough surface; the hook face of the first hook-and-loop fastener is fixed to the outer side of the first splicing end of the heat preservation sleeve body. The first lap joint block comprises a first fixing part and a first lap joint part, the first fixing part is fixed to the outer side of the second splicing end, and the first lap joint part extends out of the second splicing end; the first Velcro rough surface is arranged on the side, close to the first Velcro hook surface, of the first lap joint part; and the first caulking filler is arranged on the first lap joint part and is located at the seam of the first splicing end and the second splicing end when the rough surface of the first magic tape is adhered to the hook surface of the first magic tape. The problems that in the prior art, when a seam of a heat preservation pipe sleeve is fixed in a sewing thread or hook-and-loop fastener mode, the sealing effect of the seam is poor, and a large amount of heat is exchanged between the seam and the outside can be solved.

The invention belongs to the technical field of nuclear power, and particularly relates to a device and method for relieving remote expansion of a cushion block locking cap of a heat insulation sleeve. Comprising a locking cap expansion device and a long rod, the long rod is used for remote operation above a pool, and the locking cap expansion device comprises a positioning pin, a positioning cylinder, a clamping gripper, an aligning and screwing operation head, an expansion head and a pressing expansion operation head. The device has the beneficial effects that a long-distance long rod is adopted to operate screwing positioning alignment and pressing expansion, and remote operation of locking of the cushion block locking cap is achieved. A special device integrating positioning of an expansion tool, screwing positioning of an expansion head, clamping and fixing and pressing expansion is adopted, underwater remote expansion integrated operation of the relieving cushion block locking cap is achieved, and the process steps are simplified.

A heat generating device according to the invention includes: a sealed container into which a hydrogen-based gas is supplied; and a heat generating structure accommodated in the sealed container and in which a plurality of heat generating elements that are configured to generate heat by occluding and discharging hydrogen contained in the hydrogen-based gas are radially arranged. Each of the heat generating elements includes a base made of a hydrogen storage metal, a hydrogen storage alloy, or a proton conductor, and a multilayer film provided on the base. The multilayer film has a first layer made of a hydrogen storage metal or a hydrogen storage alloy and having a thickness of less than 1000 nm and a second layer made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and having a thickness of less than 1000 nm.

A hose for fluid transfer comprises a tubular inner hose for fluid transport and an outer hose part. The tubular inner hose has a corrugated inner surface defining a bore of the inner hose, and the inner hose has a permeable tubular inner sleeve located within its bore. An inner wall of the permeable tubular sleeve is substantially smooth. The permeable sleeve may comprise a polymer composite internal layer and a permeable outer layer wrapped around the internal layer. Methods of manufacturing such a hose are also described. Such hoses are suitable for cryogenic fluid transfer.

The embodiment of the invention provides a plastic-coated steel pipe and a plastic coating process thereof, and relates to the technical field of plastic-coated steel pipes. The plastic-coated steel pipe comprises a steel pipe base body, a metal transition layer, an inner anticorrosive coating, a fiber reinforced winding layer and an outer protective coating are sequentially arranged on the outer surface of the steel pipe base body from inside to outside, and the metal transition layer is a nickel-chromium-aluminum-yttrium alloy layer and is formed on the surface of the steel pipe base body through a supersonic plasma spraying process. And the inner anticorrosive coating is formed by a mixture of bisphenol F type epoxy resin and novolac epoxy resin, and is doped with silicon nitride and zirconium oxide composite nanoparticles subjected to surface treatment. By arranging a multi-stage composite structure of the metal transition layer, the high-temperature-resistant anti-corrosion coating, the fiber reinforcement layer and the self-repairing outer layer and arranging the detachable heat insulation sheath, the interface bonding strength, heat resistance, mechanical damage resistance and corrosion resistance of the plastic-coated steel pipe are improved; and the service life of the composite material in high-temperature, strong-corrosion and complex construction environments is effectively prolonged.

The invention relates to the technical field of vacuum heat insulation materials, and discloses a pored polyurethane vacuum heat insulation panel and a preparation method thereof.The pored polyurethane vacuum heat insulation panel comprises a blocking layer and a core material, the blocking layer is arranged outside the vacuum heat insulation panel and sequentially comprises a protection layer, a cellulose base layer and a heat sealing layer from outside to inside, and the core material is arranged inside the vacuum heat insulation panel and located in the blocking layer; the core material takes open-cell polyurethane foam as a matrix, a nano-scale flame retardant and reinforced fibers are added to form a micropore open-cell structure, the protective layer is used for providing mechanical strength and puncture resistance, the cellulose base layer is used for blocking gas permeation, and the heat sealing layer is used for ensuring sealing performance. The perforated polyurethane vacuum insulation panel is stable in performance, good in heat insulation performance, low in gas permeability, low in water absorption performance and good in mechanical strength and durability, the service life of the vacuum insulation panel is prolonged through combination of the blocking layer and the core material, and the maintenance cost is reduced.

The utility model belongs to the technical field of liquid hydrogen stations, and particularly relates to a liquid hydrogen station BOG recycling system which comprises a liquid hydrogen tank car, a liquid hydrogen storage tank, a hydrogen liquefying device and a hydrogen recycling device. A gas outlet of the liquid hydrogen storage tank is respectively connected with the hydrogen liquefaction device and the hydrogen recovery device through a BOG gas phase recovery pipeline, and a liquid outlet of the hydrogen liquefaction device is connected with a liquid inlet of the liquid hydrogen storage tank. According to the system and the control scheme, BOG generated in the operation process of the liquid hydrogen filling station is reasonably recovered, complete recovery and efficient storage of BOG hydrogen are achieved, the system and the control scheme are high in automation degree and good in applicability, the on-site operation time of operation personnel is shortened, and the production efficiency is improved. And the overpressure emission or direct emission of hazardous gases such as BOG (boil-off gas) in the transportation process of the liquid hydrogen tank car is reduced.

The invention relates to the technical field of fusion devices, and discloses a composite multi-channel multi-medium pipeline for a fusion device.The composite multi-channel multi-medium pipeline comprises a heat shielding part, a vacuum pipeline, a liquid helium conveying assembly and a first gas helium conveying assembly, and the interior of the heat shielding part is hollow to form a first containing space; the vacuum pipeline sleeves the periphery of the heat shielding part, the vacuum pipeline and the heat shielding part are arranged at an interval, a second accommodating space is formed between the heat shielding part and the vacuum pipeline, and the heat shielding part is used for shielding heat transfer between the first accommodating space and the second accommodating space; the liquid helium conveying assembly is used for conveying liquid helium and arranged in the first containing space to be fixedly connected with the heat shielding piece. The first gaseous helium conveying assembly is used for conveying first gaseous helium and arranged in the second containing space to be fixedly connected with the heat shielding piece and the vacuum pipeline. The composite multi-channel multi-medium pipeline for the fusion device is not only suitable for transmission of different media, but also capable of avoiding heat transfer between the different media.

The present invention is a cover body configured to cover an object, including: an inner layer part disposed on a side closer to the object; an outer layer part disposed on a side further from the object; an inner-layer-side heat insulating member disposed on an outer layer part side of the inner layer part; an outer-layer-side heat insulating member disposed on an inner layer part side of the outer layer part; a heat generating element disposed between the inner-layer-side heat insulating member and the outer-layer-side heat insulating member; a sheet configured to provide a stepped part on a side further closer to the object of the inner layer part; and a thermocouple provided on a side further closer to the object of the stepped part.

An insulating cover for a central heating system filter is provided in two parts. The insulating cover may be made from, for example, expanded polypropylene foam. The cover may include magnets for attracting and retaining magnetic debris within the filter. The cover may include a leadscrew arrangement to assist with removal of the cover from the filter for servicing.

The utility model discloses heat insulation type laminated iron, which comprises a metal substrate and a PET (polyethylene terephthalate) layer adhered on the surface of the metal substrate, the PET layer comprises a base layer and a conical array structure formed on the surface of the base layer, the conical array structure comprises a plurality of conical convex structures, and an Ag layer and an oxide protection layer are sequentially arranged on the side surface of each conical convex structure. According to the laminated iron, the reflectivity of the laminated iron in an infrared band can be improved, the heat insulation performance of a material is enhanced, meanwhile, the risk of migration of harmful substances is avoided, and the laminated iron has good safety.

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.

A heat-insulating material is provided, which includes a porous structure in which a plurality of particles are connected to form skeletons and which has pores between the skeletons, infrared ray shielding particles, and organic hollow particles. In the heat-insulating material, the infrared ray shielding particles have a content of 10 mass % or more and 30 mass % or less when a mass of the heat-insulating material is 100 mass %, and the organic hollow particles have a content of 5 mass % or more and 30 mass % or less when a mass of the heat-insulating material is 100 mass %.

The present invention provides a modified silica aerogel powder having a higher water repellency and a larger contact angle, and a method for producing the same. At the same time, the present invention provides an aerogel slurry having a lower thermal conductivity and a method for producing the same. The present invention also provides a method for producing an aerogel insulating felt having low thermal conductivity, high mechanical strength, and capable of relatively well resolving the problem of powder shedding. The method for producing the modified silica aerogel powder includes the steps of (1) modifying halloysite nanotubes with dodecyl methacrylate and pentafluorophenyl methacrylate, (2) preparing a silica sol, (3) adding the modified halloysite nanotubes to the silica sol to prepare a wet gel, and (5) preparing the wet gel into the modified silica aerogel powder. The present application also provides a method for producing an aerogel slurry from the modified silica aerogel powder, and a method for producing an aerogel insulating felt from the aerogel slurry.

The invention relates to a rotary valve electric heating device and a control method. The control method of the rotary valve electric heating device comprises the steps that a first temperature signal of an electric heating plate and a second temperature signal of a rotary valve are obtained; filtering the first temperature signal and the second temperature signal to obtain a first filtering temperature and a second filtering temperature, and calculating a corresponding temperature difference value according to the first filtering temperature and the second filtering temperature; judging that the second filtering temperature is lower than a lower limit threshold of a preset target temperature interval, and judging that the second filtering temperature is higher than an upper limit threshold of the preset target temperature interval; judging whether the temperature difference value exceeds a temperature difference threshold, and judging whether the first filtering temperature exceeds a safety upper limit temperature; and switching on the power supply of the electric heating plate and switching off the power supply of the electric heating plate. The precision of temperature regulation and control is guaranteed, the temperature of the rotary valve shell is close to the process requirement range, and the stability and safety of the operation process are improved.

The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, an insulation product may include a first layer and a first continuous paper sheet formed into a first plurality of flexible loops disposed on and attached to the first layer and defining a first plurality of air channels that extend in a direction that is substantially perpendicular with a machine direction of the insulation product. A take up factor of the first continuous paper sheet to the first layer may be greater than 1:1.

The utility model discloses a low-temperature-resistant ultrafiltration water purification device which comprises a water inlet, a water inlet pump, a primary filter, an ultrafiltration membrane assembly, an anti-freezing glycerol tank, an activated carbon filter, a produced water outlet and a waste liquid discharge pipe, the water inlet is connected with a water inlet pump; the water inlet pump is connected with the primary filter; the primary filter is respectively connected with the anti-freezing glycerol tank and the active carbon filter; the ultrafiltration membrane assembly is connected with the active carbon filter; an ultraviolet sterilizer is arranged between the activated carbon filter and the produced water outlet; the water inlet, the primary filter, the ultrafiltration membrane assembly, the anti-freezing glycerol tank, the activated carbon filter and the ultraviolet sterilizer are all connected with a waste liquid discharge pipe. Enough pipeline pressure is ensured while the water purification effect is ensured; each key node of the device is provided with a pressure relief pipeline connected with a waste liquid discharge pipe, so that the risk caused by excessive pressure is avoided; and the anti-freezing glycerol tank is arranged and is matched with a valve switch to perform pipeline anti-freezing operation, so that the cold resistance of the device is improved.

Thermal barrier curtain systems include a thermal barrier curtain and port and starboard anchor / hoist strap assemblies. The thermal barrier curtain includes forward and aft flexible air-impervious panels which are sealed about peripheral edges thereof so as to define a central thermal barrier region and separator elements positioned between and attached to the forward and aft panels within the central thermal barrier region so as to define a dead air space therebetween. Each of the port and starboard anchor / hoist strap assemblies includes an elongate strap, upper and lower attachment members positioned at opposed upper and lower ends of the elongate strap, an upper attachment loop adapted to receive and be attached to a respective connection element of the thermal barrier curtain, and an intermediate retaining loop which is adapted to receive and be attached to the lower attachment member of the anchor / hoist assembly.

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 invention relates to a transmission shaft of a long furnace tube reactor, belongs to the technical field of waste resource recycling, and solves the problem of poor high temperature resistance of an internal transmission shaft of the long furnace tube reactor in the prior art. A transmission shaft of a long furnace tube reactor is of an inner-outer double-tube structure and comprises an inner tube and an outer tube, one ends of the inner tube and the outer tube are fixedly connected, and the other ends of the inner tube and the outer tube are slidably connected through a guide supporting ring. And stable operation of the long-furnace-tube reactor under the high-temperature working condition is realized.

The invention discloses a range-extended steam conveying system with a temperature and pressure increasing device and an installation method, and relates to the technical field of steam conveying, the range-extended steam conveying system with the temperature and pressure increasing device comprises a steam conveying pipeline and the temperature and pressure increasing device, and the temperature and pressure increasing device is used for increasing temperature and pressure of steam in the steam conveying pipeline. The steam conveying pipeline comprises an inner pipe, an inner heat preservation layer, a heat preservation interlayer, an outer heat preservation layer and a protection layer which are sequentially arranged from inside to outside, and the heat preservation interlayer is of an arc-shaped structure, located on the top of the inner heat preservation layer and used for supporting the outer heat preservation layer. When the pipe diameter of the steam conveying pipeline is selected, the diameter of the steam conveying pipeline can be reduced to the maximum extent, the investment of the steam conveying pipeline is reduced, and the pipe loss of the steam conveying pipeline under low load is reduced; the heat preservation interlayer of the arc structure is additionally arranged, heat dissipation loss of the upper portion of the steam conveying pipeline can be effectively reduced, meanwhile, the outer heat preservation layer is supported by the heat preservation interlayer, the heat preservation performance of the outer heat preservation layer can be improved, and the service life can be prolonged.

The utility model provides a heat preservation structure of a water supply pipeline, which relates to the technical field of water supply pipelines, and comprises a pipeline body and two heat preservation shells, a connecting mechanism is arranged between the two heat preservation shells, and the connecting mechanism comprises two first arc-shaped blocks and two second arc-shaped blocks, and two symmetrical sliding holes are formed in the surface of each first arc-shaped block. By arranging the connecting mechanism, the water supply pipeline can be conveniently maintained in the later period, that is, when the water supply pipeline needs to be maintained in the later period, the heat preservation structure can be manually detached from the water supply pipeline, meanwhile, in the process of manually detaching the heat preservation structure, the heat preservation structure cannot be damaged, and the service life of the heat preservation structure is prolonged. The using effect of the water supply pipeline heat preservation structure is improved, and meanwhile the using efficiency of the water supply pipeline heat preservation structure is improved.