Heat-insulating product

FIELD: heating.

SUBSTANCE: heat-insulating product includes insulating elements of elongated shape, which are made from elastic-deformable fibrous material, connected to each other and enclosed in the cover that covers the side surfaces of elongated elements and consists of two flexible plates. One of the plates is tight and forms side surfaces of elongated elements, which are opposite to the surfaces facing the insulated object. The other plate forms the rest side surfaces of elongated elements. The product is equipped with additional tight cover made from polymer material. Tight cover is arranged on surfaces of elongated elements. Flexible plates are connected by means of a glued joint, and fibres of elastic-deformable fibrous material are oriented in an arbitrary way relative to side surfaces of elongated elements.

EFFECT: invention allows protecting the product not only against atmospheric and other outside moisture, but also against leaks of insulated medium, and arbitrary orientation fibres of fibrous insulators improves heat-insulating properties in complex sections of pipelines.

1 dwg

 

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

Analogous to the claimed invention is a thermal insulation product from a sheet of insulating material, consisting of interconnected alternating insulating elements are elongated from providermessage 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 №34688, IPC F16L 59/02, 2003). The essential features of similar "consisting of interconnected alternating insulating elements are elongated from providermessage material, the shell of the sheets coincide with the essential features of the claimed invention.

The disadvantage of analog is insufficient insulating capacity due to leaks of the product, which at atmospheric pressures or leak isolated environment leads to the ingress of moisture into the insulating elements, which dramatically reduces their insulating properties.

The prototype of the claimed invention is a thermal insulation product containing insulating elements are elongated from providermessage in the 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, while the flexible sheet forming the side surfaces of the elongated elements, the opposite surfaces facing the isolated 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 isolated object (see RF patent №2379576, IPC F16L 59/02, 2010). The essential features of the prototype insulating elements are elongated, interconnected and enclosed in a shell, the shell closes the lateral surface of the elongated elements and consists of two flexible sheets, one sheet is airtight and forms the lateral surface of the elongated elements, the opposite surfaces facing the insulated object, another sheet forms the remaining side surfaces of the elongated elements coincide with the essential characteristics of the claimed izopet the deposits.

The disadvantage of the prototype is also insufficient insulating capacity due to insufficient sealing products (hermetic only one of the sheets)that when external influences, causes the moisture in the product and reduction in insulating properties.

The challenge which seeks the invention is to increase the insulation capacity of the product by ensuring its full integrity and eliminate the possibility of moisture in the insulating elements.

To achieve the technical result of 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 is airtight and 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, with further sealed by a membrane made of a polymeric material and placed on the side surfaces of the elongated elements, addressed to the insulated object, on the side surfaces of the elongated elements, across the lagoon to the false surfaces, addressed to the insulated object, and on the end surfaces of the elongated elements, the flexible sheets are connected by an adhesive connection, and fiber providermessage fibrous material is randomly oriented relative to the side surfaces of the elongated elements.

The essential features of the claimed invention "more tight sheath made of a polymeric material and placed on the side surfaces of the elongated elements, addressed to the insulated object, on the side surfaces of the elongated elements, the opposite surfaces facing the isolated object, and on the end surfaces of the elongated elements, the flexible sheets are connected by an adhesive connection, fiber providermessage fibrous material is randomly oriented relative to the side surfaces of the elongated elements 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 howl is OK mineral wool, various fibrous nonwoven materials, etc. with a density of from 30 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 gluing the shell, for example a polymer adhesives, and consists of two sheets, such as glass fiber (glass fiber, glass fiber, 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 to ensure its integrity. Another sheet is fixed on the other three side surfaces of each of the elongated elements. The elements are secured to the shell arbitrarily, that is, so that was not observed any preferred orientation of the fibers of the material to the surface of the product.

Additionally, the product is covered with a sealing polymer membrane, for example from a sheet of polypropylene, polyethylene and the like, the Sealing membrane is placed on the end surfaces of the elongated insulating elements and on their side is overhasty, in particular, the surface-side sealed object (pipe, shell) and from the opposite side. In addition, sealing the wrapper closes marginal side surfaces of extreme isolation elements (surfaces, where it leaves the retaining wire).

To produce the inventive product may be the following. Pre-fabricated elongated elements are placed consecutively on the first fiberglass sheet and fixed to the sheet. Then on the other side surfaces of the elements is fixed to the second glass fiber 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 is so). Next, on the surfaces of the product is a polymeric sealing sheath.

In Fig. presents a specific example of the inventive product (side view), the portion of the sealing membrane is removed.

A specific example of the inventive insulating products is a versatile insulation system of the SPECIFICATION for insulation of piping and shells. The system consists of fibrous insulators 1, having the form of rectangular bars of Minplita 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). 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 product is covered with a sealing membrane 7 from a sheet of polypropylene, is placed on the side surfaces of the elongated elements (except surfaces which elements are in contact with each other), and on the end surfaces 8 elements.

The inventive insulation product may be bent in a direction opposite to the insulated surface, without deformation of the extension elements. This allows easy Swaraj is their product in a roll for transportation, for example, in 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 enables reusable deformable elements.

The presence of the sealing wrapper allows you to protect the product not only from atmospheric and other external moisture, but also from leaks isolated environment (by pipeline, shells and other).

Random orientation of the fibers of the fibrous insulators allows you to eliminate the anisotropy of the products of thermal conductivity, which improves thermal insulation properties of complex pipelines and shells (joints, branching, and others). No sealing membrane on the lateral surfaces of the insulating elements which they adjoin, enables the exchange of convection of the gas flows between the elements, which also improves the insulating properties of the product.

Insulation product containing insulating elements are elongated from providermessage fibrous material, interconnected and enclosed in a shell which is akrival lateral surface of the elongated elements and consists of two flexible sheets, one of which is airtight and 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, characterized in that the product is equipped with an additional hermetic shell made of a polymer material and placed on the side surfaces of the elongated elements, addressed to the insulated object, on the side surfaces of the elongated elements, the opposite surfaces facing the isolated object, and on the end surfaces of the elongated elements of flexible sheets connected by an adhesive connection, and fiber providermessage fibrous material is randomly oriented relative to the side surfaces of the elongated elements.



 

Same patents:

FIELD: construction.

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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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