Heat insulating products

FIELD: machine building.

SUBSTANCE: heat insulating product contains insulating components of elongated shape from elastodeformed fibrous material, connected to each other and encases, herewith envelope closes side surfaces of elements and consists of two flexible sheets, one of which forms side surfaces of elongated components, opposite to surfaces, directed to insulating object, and other forms the rest side surfaces of elongated components. Herewith flexible sheet is implemented as sealed, and elastodeformed fibrous material is implemented with density of fibrous material 50-125 kg/m3, fibers are principally oriented orthogonal to plane of product.

EFFECT: excluding of ingress of atmospheric moisture into heat insulating components, increasing of its heat-insulating capabilities.

1 dwg

 

The invention relates to a sheet of heat(cooling)insulation products designed for heat(cooling)isolation of various non-planar objects, mainly pipes and shells.

The analogue of the claimed invention is an insulation product that takes the form of isolated surface, consisting of a support, a layer of corrugated insulating material and a layer of airtight material (fabric), located on the top surface (see application FR No. 2625793, IPC F16L 59/02, 1989). The essential features of similar “takes the form of isolated surface, base, airtight material coincide with the essential features of the claimed invention.

The disadvantage of analog is the complexity of insulation systems of complex configuration (“beam pipe”, “satellite”, and so on), the lack of quick access to the affected area of the insulated surface, low maintainability, reusable and environmentally sound repair without removing the insulation, insufficient strength characteristics (comparable with the weight of an adult), the need for relatively thick layer of insulating material to isolate.

Another analogue of the claimed invention is the product of sheet material, consisting of interconnected is tlirough elements elongated from providermessage material (see application GB No. 2190167, IPC F16L 59/02, 1987). The essential features of analogue interconnected insulating elements of providermessage material” match the essential features of the claimed invention.

The disadvantage of analog is the complexity of installation, the complexity of the transportation and storage of material, insufficient strength characteristics, the absence of the possibility of quick access to the damaged section of pipe, poor maintainability, reusable.

The prototype of the claimed invention is a thermal insulation product from a sheet of insulating material, consisting of interconnected alternating insulating elements are elongated from uprugoplasticheskogo material and shape during Assembly loads of material enclosed in a shell made of fiberglass sheets, fixed to the side surfaces of the elements (see RF patent №34 688, IPC F16L 59/02, 2003). The essential features of the prototype “consisting of interconnected insulating elements are elongated from providermessage material the shell of the sheets coincide with the essential features of the claimed invention.

The disadvantages of the prototype are insufficient insulating capacity due to leaks of the product, is then at atmospheric influences leading to the ingress of moisture into the insulating elements (this dramatically reduces their insulating properties), the complexity of the design that contributes to the complexity of manufacture of the product and its installation, deterioration of geometric and strength characteristics of the product in the polymer constituent elements due to thermal effects and the time factor, as well as the lack of efficiency of fibrous insulation.

The challenge which seeks the invention is to improve the insulating ability of the product by eliminating the ingress of atmospheric moisture in insulating elements, simplifying the design of products, simplifying its manufacture and installation, reducing the influence on the characteristics of the product of the process of destruction of polymer product content, and increase the insulating ability of the insulating elements.

To achieve the technical result of insulating the product consists of isolating elements is elongated from providermessage material, interconnected and enclosed in a sheath that covers the lateral surface of the elongated elements and consists of two flexible sheets, one of which forms the lateral surface of the elongated elements, the opposite surfaces facing the isolated object, and the other forms the rest of the lateral surface of the elongated elements, while Flex is the first sheet, forming the lateral surface of the elongated elements, the opposite surfaces facing the isolated object is airtight, provideproperty the fibrous material is made with a density of 50÷125 kg/m3and with a preferential orientation of fibers orthogonal to the side surfaces of the elongated elements, the opposite surfaces facing the insulated object.

The essential features of the claimed invention, a flexible sheet forming the side surfaces of the elongated elements, the opposite surfaces facing the isolated object is airtight, provideproperty the fibrous material is made with a density of 50÷125 kg/m3and with a preferential orientation of fibers orthogonal to the side surfaces of the elongated elements, the opposite surfaces facing the insulated object are different from the characteristics of the prototype.

Insulation product consists of insulating elements (bars) elongated square, rectangular, trapezoidal or other close to the specified cross section, made of a material providermessage when mounting loads. As such material can be used materials containing predominantly oriented in one direction fibers such as basalt is first felt, mineral wool, various fibrous nonwoven materials, etc. with a density of from 50 to 125 kg/m3. The elements are enclosed in a sheath that covers the lateral and does not cover the end surface. The shell captures the elements to each other and consists of two flexible (when mounting loads) sheets, for example, of glass, fiberglass, valimatkan, insulation varnished cloth, etc. Sheath locks the elements together by firmware shell, for example, glass and consists of two sheets, for example, a glass fiber (fiberglass, fiberglass Mat, fiberglass mesh and so on). One of the sheets is fixed on the surfaces of each of the elongated heat element, opposite the insulated surface, and optionally covered with aluminum foil, ensuring its integrity (including the location of the firmware of the sheet). Another sheet is fixed on the other three side surfaces of each of the elongated elements. The elements are secured to the shell so that the observed preferred orientation of the fibers of the material as orthogonal to the surface opposite the insulated surface and the surface in contact during operation with the insulated surface (i.e. the majority of the fibers of the material perpendicular to the plane of the product).

Be made of the inventive material is ial group may be the following. Pre-fabricated elongated elements are placed consecutively on the first fiberglass sheet so that the fibers of the fibrous material were predominantly oriented perpendicular to the sheet, and is fixed to the sheet by firmware fiber glass. Then on the other side surfaces of the elements is fixed by the firmware of the second fiber glass fiberglass sheet. For this purpose, the elements sequentially in pairs are aligned surfaces, where already fixed the first sheet by bending the sheet in the zone of connection elements), and the second sheet is fixed on facing to each other of the side surfaces of the elements, then the second sheet is fixed on the surface of the element facing the insulated surface, again repeated fixation on facing to each other of the side surfaces of the elements, and again on the surface facing the insulated surface, and so on the free surface of the first fiberglass sheet (the surface opposite to the surface where heat-insulating elongated elements) covered with aluminum foil (for example Polygonatum by attaching the foil and the like).

The drawing shows a specific example of the inventive product (side view).

A specific example of the inventive insulating products is versatile is its insulation system STU (STU-A; STU-N; STU-K) for the insulation of pipelines. The system consists of fibrous insulators 1, having the form of rectangular bars of Minplita P-75, P-125, or basalt Mat. The membrane system consists of structural sheet material 2 (fiberglass, fiberglass, basalt fabric, etc.) and top sheet 3 (aluminum foil laminated to glass cloth, fiber glass, varnished cloth). When this fiber, made from fibrous insulators, mainly oriented perpendicularly to the cover sheet. In addition, the system has a damping element 4, the retaining wire 5 and lap top sheet 6, is necessary to ensure when installing a custom fit system around the diameter of the tube.

The inventive insulation product may be bent in a direction opposite to the insulated surface, without deformation of the extension elements This allows you to easily turn the product into a roll for transportation, such as cardboard boxes, and storage. When mounting with the bending of products in the direction of the insulated surface deformation insulating elements. Depending on the curvature of the insulated surface, this strain may be greater or lesser, which simplifies the installation of insulation at various tube sizes and due to the elastic deformation of the securing is no possibility reusable deformable elements.

The preferred orientation of the fibers of the fibrous insulation, which after installation of the product in the pipeline is radial with respect to the pipeline, can significantly reduce the subsidence insulating structures and to give it rigidity. In addition, when the radial orientation of the fiber polymer binder fiber insulators associated with thermal and temporal factor has virtually no effect on the geometric and mechanical characteristics of the product, and the coefficient of thermal conductivity as a result of degradation of the polymer decreases. The result is improved insulating characteristics of the product. In addition, at temperatures up to 100°C above the fibrous insulation with a density of 50÷125 kg/m3have a conductivity less than a density of more than 125 kg/m3and at a temperature more than 100°C at a density of 50÷125 kg/m3thermal conductivity is higher than a density of more than 125 kg/m3. Because of the rectangular insulating elements when mounted on the pipe are deformed and become a trapezoidal shape, their density increases as it approaches the insulated surface, because the largest deformation (compaction) are part of the elements closest to the insulated surface. However, increases and the temperature value insulation, which in most cases in areas close to the insulated surface exceeds 100°C. In less deformed areas (the outer part of the insulation), where the density of the insulating material did not change or increased slightly, temperature, typically less than 100°C. the result is increase the insulating ability of the insulation without increasing its thickness. The most effective from the point of view of heat-shielding properties is the use of fibrous insulation with a density of up to 75 KGM3. However, in some cases, their mechanical strength is insufficient, so in the claimed range 50÷125 kg/m3optimum ratio performance of this product.

Insulation product containing insulating elements are elongated from providermessage fibrous material, interconnected and enclosed in a shell which covers the side surfaces of the elongated elements and consists of two flexible sheets, one of which forms the lateral surface of the elongated elements, the opposite surfaces facing the isolated object, and the other forms the rest of the lateral surface of the elongated elements, wherein the flexible sheet forming the side surfaces of the elongated elements, the opposite of the one surface, addressed to the insulated object is airtight, and provideproperty fibrous material with a density of 50-125 kg/m3and with a preferential orientation of fibers orthogonal to the side surfaces of the elongated elements, the opposite surfaces facing the insulated object.



 

Same patents:

FIELD: process engineering.

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Heat insulated pipe // 2318154

FIELD: pipeline engineering.

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Heat insulated pipe // 2318153

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1 dwg

Protective device // 2269168

FIELD: engineering of equipment for protecting microelectronic information registers, can possibly be used for engineering of onboard flight information storage devices for airplanes and helicopters.

SUBSTANCE: device for thermal and mechanical protection of object allows to maintain safety of microelectronic register under effect from combined external destructive factors: mechanical impacts, overloads, vibration effects, static pressure, and also fire-based factors with time of effect up to one hour with all-around fire enveloping at temperature up to 1100°C. Aside from that, invention provides for safety of accumulated information after long, up to 10 hours, effect of smoldering burning at temperature up to 260°C. protection of microelectronic equipment from effect of destructive factors, in accordance to invention, is realized by using multi-layer casing, containing serially positioned in depth direction protective layers: external, intermediate and internal, and also biomorphic heat-protection cover on the outside surface of external layer, while each layer and cover perform certain protective function. Biomorphic heat-protective cover, meant for passive heat protection of protected object, provides aforementioned protection due to significant increase of volume and porosity level of cover material under effect from flames, leading to substantial increase of thickness and heat resistance of cover. External layer is meant for providing impact and fire resistance of protective cover due to high mechanical and heat resistance of metals used to manufacture external layer. Intermediate layer meant for passive heat protection of preserved object, realizes functions of heat isolator due to low heat conductivity of fire-resistant dry porous material forming this layer. Internal layer realizes active heat protection of microelectronic register. To reach aforementioned goal it is formed of crystalline compositions, containing crystallization water - crystalline hydrates, under effect from external heat consuming external heat and thus during whole time of heat-caused dehydration upholding temperature inside protected volume to be below temperature of heat decomposition of crystalline hydrate. To increase efficiency of heat protection, internal layer on both sides is covered by metallic heat-reflective inserts.

EFFECT: increased efficiency.

1 dwg

FIELD: engineering of equipment for protecting microelectronic information registers, can possibly be used for engineering of protected onboard flight information storage devices for airplanes and helicopters.

SUBSTANCE: device for thermal and mechanical protection of object allows to maintain safety of microelectronic register under effect from combined external destructive factors: mechanical impacts, overloads, vibration effects, static pressure, and also fire-based factors with time of effect up to one hour with all-around fire enveloping at temperature up to 1100°C. Aside from that, invention provides for safety of accumulated information after long, up to 10 hours, effect of smoldering burning at temperature up to 260°C. protection of microelectronic equipment from effect of destructive factors, in accordance to invention, is realized by using multi-layer casing, containing serially positioned in depth direction protective layers: external, intermediate and internal, and also biomorphic heat-protection cover on the outside surface of external layer, while each layer and cover perform certain protective function. Biomorphic heat-protective cover, meant for passive heat protection of protected object, provides aforementioned protection due to significant increase of volume and porosity level of cover material under effect from flames, leading to substantial increase of thickness and heat resistance of cover. External layer is meant for providing impact and fire resistance of protective cover due to high mechanical and heat resistance of metals used to manufacture external layer. Intermediate layer meant for passive heat protection of preserved object, realizes functions of heat isolator due to low heat conductivity of fire-resistant dry porous material forming this layer. Internal layer realizes active heat protection of microelectronic register. To reach aforementioned goal it is formed of crystalline compositions, containing crystallization water - crystalline hydrates, under effect from external heat consuming external heat. To increase efficiency of heat protection, internal layer on both sides is covered by metallic heat-reflective inserts and it is formed of no less than two crystalline hydrates with different dehydration temperatures.

EFFECT: increased efficiency.

1 dwg

FIELD: engineering of equipment for protecting microelectronic information registers, can possibly be used for engineering of onboard flight information storage devices for airplanes and helicopters.

SUBSTANCE: device for thermal and mechanical protection of object allows to maintain safety of microelectronic register under effect from combined external destructive factors: mechanical impacts, overloads, vibration effects, static pressure, and also fire-based factors with time of effect up to one hour with all-around fire enveloping at temperature up to 1100°C. Aside from that, invention provides for safety of accumulated information after long, up to 10 hours, effect of smoldering burning at temperature up to 260°C. protection of microelectronic equipment from effect of destructive factors, in accordance to invention, is realized by using multi-layer casing, containing serially positioned in depth direction protective layers: external, intermediate and internal, and also biomorphic heat-protection cover on the outside surface of external layer, while each layer and cover perform certain protective function. Biomorphic heat-protective cover, meant for passive heat protection of protected object, provides aforementioned protection due to significant increase of volume and porosity level of cover material under effect from flames, leading to substantial increase of thickness and heat resistance of cover. External layer is meant for providing impact and fire resistance of protective cover due to high mechanical and heat resistance of metals used to manufacture external layer. Intermediate layer meant for passive heat protection of preserved object, realizes functions of heat isolator due to low heat conductivity of fire-resistant dry porous material forming this layer. Internal layer realizes active heat protection of microelectronic register. To reach aforementioned goal it is formed of crystalline compositions, containing crystallization water - crystalline hydrates, under effect from external heat consuming external heat and thus during whole time of heat-caused dehydration upholding temperature inside protected volume to be below temperature of heat decomposition of crystalline hydrate. To increase efficiency of heat protection, internal layer on both sides is covered by metallic heat-reflective inserts and it is formed of no less than two crystalline hydrates with different dehydration temperatures.

EFFECT: increased efficiency.

1 dwg

FIELD: heat engineering.

SUBSTANCE: heat insulation comprises layers made of heat insulating fiber material with an adhesive binder and mounted on the outer surface of pipes. The heat insulating material is made of a fiber fireproof material of virtual density no more than 200 kg/m3.

EFFECT: improved heat insulation and enhanced reliability.

11 cl, 2 dwg

FIELD: engineering of means for protecting micro-electronic information registers, possible use in protected onboard accumulators of flight information of planes and helicopters.

SUBSTANCE: protection of micro-electronic equipment from destructive factors is performed by multi-layer cover containing layers serially positioned along depth: external, intermediate and internal, while each layer performs certain protective function. External layer is meant for realizing impact and fire resistance of protective cover due to high mechanical and heat resistance of metals utilized during its manufacture. Intermediate layer meant for passive heat protection of protected object performs heat insulating functions due to low heat conductivity of fire-resistant dry porous material forming that layer. Internal layer provides active heat protection of micro-electronic register.

EFFECT: safety of microelectronic register under complex effect from external destructive factors: mechanical impacts, overloads, vibration effects, static pressures and also fire factors with effect duration up to 1 hour with all-side enveloping fire at temperature up to 1100°C.

1 dwg

FIELD: means for thermal insulation.

SUBSTANCE: method comprises coating the steel pipe member with heat insulation and hydraulic insulation made of sheet zinc-coated steel, removing contamination and corrosion layers from the outer surface of the pipe member, treating it with phosphating modifier composed of rust converter and anticorrosion converter thus forming phosphating coating, and applying the first layer of heat insulation made of foiled mineral basalt wool whose fiber density is 40-45 kg/m3 and thickness is 40-50 mm that is 45-55% of the total volume of the heat insulation and heat conductivity is 0.05 W/m at 50°C. The foiled surface obtained is provided with the centering rings, and piping member with centering rings is mounted in the spiral shell made of zinc-coated steel sheet. The contamination is preliminary removed from the inner surface of the shell by treating it with phosphating modifier. The ring space between the inner side of the shell and outer surface of the first layer of heat insulation is sealed and filled with the rigid polyurethane of density of 75-88 kg/m3 and conductivity of 0.03 W/m°C at 50°C.

EFFECT: enhanced reliability and prolonged service life.

1 dwg

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