CN111775521A - Novel fireproof curtain - Google Patents

Novel fireproof curtain Download PDF

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Publication number
CN111775521A
CN111775521A CN202010764851.9A CN202010764851A CN111775521A CN 111775521 A CN111775521 A CN 111775521A CN 202010764851 A CN202010764851 A CN 202010764851A CN 111775521 A CN111775521 A CN 111775521A
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China
Prior art keywords
layer
fire
curtain
resistant
fireproof
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CN202010764851.9A
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Chinese (zh)
Inventor
王治国
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Beijing Vmctex High Temperature Materials Co ltd
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Beijing Vmctex High Temperature Materials Co ltd
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Priority to CN202010764851.9A priority Critical patent/CN111775521A/en
Publication of CN111775521A publication Critical patent/CN111775521A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/288—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyketones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
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    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

The application discloses a novel fireproof curtain, which comprises a fireproof curtain body, wherein the fireproof curtain body consists of an inner layer, a middle layer and an outer layer which are sequentially overlapped; the inner layer is composed of at least one of a polyether-ether-ketone layer, a polyphenylene sulfide layer, a polytetrafluoroethylene layer or a PFA layer; the middle layer consists of at least one layer of a heat-resistant metal plate layer, a carbon fiber layer, a graphite layer, a high-temperature-resistant fiber fabric layer or a high-temperature-resistant coating fabric layer; the outer layer consists of at least one layer of a silicone rubber coated fabric layer and a high-temperature resistant composite fabric layer; the invention has the beneficial effects that: the novel fireproof curtain effectively overcomes the defects that spark carbon deposits are accumulated on the fireproof curtain in a large quantity, and the service life of the fireproof curtain is shortened; when the spark carbon deposits are attached to the inner layer of the fireproof curtain to reach certain volume and weight (the density reaches 3.53 g/cm)3) The carbon deposit in the spark will fall off automatically along with the increase of the self-weight and the impact of the follow-up spark.

Description

Novel fireproof curtain
Technical Field
The application relates to a fire-proof curtain, in particular to a novel fire-proof curtain.
Background
When the track polishing equipment works, a large amount of polishing sparks can be generated, the sparks have the characteristics of high temperature, high splashing speed, long flying distance, strong impact force and the like, when the track polishing equipment works continuously, the generation amount of the sparks is huge, and high-temperature carbon deposition formed by the sparks can be attached to the surface of surrounding equipment and is difficult to fall off; meanwhile, if the spark protection device fails in advance and is damaged, high-speed sparks can be sprayed to the outer sides of the rails and the roadbed from the defect of the spark protection device, and if combustible materials contact the spark, the risk of fire is high.
In the prior protection technology, the adopted fire-proof curtain system single-layer structure is made of silicon rubber composite glass fiber fabric or silicon rubber composite carbon fiber fabric, the material is hung near a polishing mechanism, so as to realize the functions of blocking polishing sparks and reducing the splashing of the sparks to the outside of the vehicle body, but during the actual polishing operation, the fireproof curtain with single function and structure is easy to burn and perforate due to low temperature resistance, simultaneously, a large amount of cooling sparks are gathered and attached on the surface, the gathered cooling sparks increase the dead weight of the fireproof curtain, so that the coating material on the surface of the fireproof curtain is torn and peeled off in pieces, the service life of the fireproof curtain is greatly reduced, so that the fire-proof curtain needs to be frequently replaced in operation, the workload on site and the use cost of users are greatly increased, if the replacement is not timely, high-temperature and high-speed sparks can rush out of the outer side of the vehicle body, and workers are easily burnt or fire disasters are easily caused. It can be said that protection against rail grinding sparks has become a stubborn problem.
Disclosure of Invention
The utility model provides a main objective provides a reducible fire prevention curtain spark contact volume, and can effectively solve the spark carbon deposit and attach to the novel fire prevention curtain on the fire prevention curtain in a large number.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the invention provides a novel fireproof curtain which comprises a fireproof curtain body, wherein the fireproof curtain body consists of an inner layer, a middle layer and an outer layer which are sequentially overlapped;
the inner layer is composed of at least one of a polyether-ether-ketone layer, a polyphenylene sulfide layer, a polytetrafluoroethylene layer or a PFA layer;
the middle layer consists of at least one layer of a heat-resistant metal plate layer, a composite metal plate layer with the thickness of an organic resin coating film being 25-35 mu m, a carbon fiber layer, a graphite layer, a high-temperature-resistant fiber fabric layer or a high-temperature-resistant coating fabric layer;
the outer layer is composed of at least one layer of a silicone rubber coated fabric layer and a high-temperature resistant composite fabric layer.
If each layer of the fire-proof curtain body comprises a multi-layer structure, the multi-layer structure is fixedly connected by sewing.
As a preferable embodiment, the novel fire-proof curtain is characterized in that the heat-resistant metal plate layer is made of a heat-resistant metal plate with the Ni content being more than or equal to 3.5%; the high-temperature resistant fiber fabric layer is made of SiO2The content is more than or equal to 42 percent; the heat-resistant temperature of a coating layer of the high-temperature-resistant coating fabric layer is more than or equal to 250 ℃; the silicone rubber coated fabric layer is formed by coating silicone rubber with SiO2Fabric with content more than or equal to 42 percent; the high-temperature-resistant composite fabric layer is a high-temperature-resistant composite single-zero aluminum foil or PTFE fabric layer.
The polyether-ether-ketone layer is made of polyether-ether-ketone, the polyether-ether-ketone is a high polymer which is composed of a repeating unit containing one ketone bond and two ether bonds in a main chain structure, and the polyether-ether-ketone layer belongs to a special high polymer material. Has the physical and chemical properties of chemical corrosion resistance and the like, and is a semi-crystalline polymer material. In addition, polyetheretherketone has superior sliding properties in all plastics and is suitable for applications where low friction coefficients and wear resistance are strictly required.
The polyphenylene sulfide layer is made of polyphenylene sulfide, the polyphenylene sulfide is the first major variety of special engineering plastics, and is known as 'the sixth world engineering plastics' after polycarbonate, polyester, polyformaldehyde, nylon and polyphenylene oxide and is also one of eight aerospace materials. Because the benzene ring and the sulfur atom on the main chain of the polyphenylene sulfide form conjugation, and the sulfur atom is not in saturation, the thioether bond can be changed into a sulfoxide group and a sulfone group through oxidation, or the benzene ring and adjacent macromolecules form oxygen bridge branching or crosslinking, but the main chain is not broken, so that the thermo-oxidative stability is outstanding, the maximum continuous use temperature can reach 260 ℃, and the thermal decomposition temperature can reach 522 ℃.
The polytetrafluoroethylene layer is made of polytetrafluoroethylene, the polytetrafluoroethylene is commonly called as 'plastic king' and is a polymer prepared by polymerizing tetrafluoroethylene as a monomer, has excellent heat resistance and cold resistance, and can be used for ion-insulating materials
Figure BDA0002611776170000021
The lubricating oil is used for a long time, is the lowest friction coefficient in a solid material, has high lubricity, is not adhered, is the lowest surface tension in the solid material, and is not adhered with any substance.
The PFA layer is made of PFA, tetrafluoroethylene, a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene. The melt cohesiveness is enhanced, the melt viscosity is reduced, and the performance is unchanged compared with the polytetrafluoroethylene. The resin can be directly processed into products by adopting a common thermoplastic molding method, the friction coefficient is the lowest in plastics, the long-term use temperature is-80-260 degrees, and in addition, PFA has good electrical property, and the electrical insulation property is not influenced by the temperature.
Carbon fiber, high-strength high-modulus fiber with carbon content of more than 90%, and high temperature resistance are the first of all chemical fibers.
Graphite is an allotrope of carbon, is a gray black, opaque solid, chemically stable, corrosion resistant, one of the most temperature resistant minerals.
Materials constituting the inner layer: has uniform structure and high temperature resistance, the material is not easy to burn when being subjected to polishing spark impact, and when the fire-proof curtain is used vertically, spark carbon deposit on the surface of the inner layer material is attached to certain volume and weight, the heavier density is 3.53g/cm3The spark carbon deposition (the data measured by the experiment) can automatically fall off along with the increase of the self weight and the impact of the follow-up spark, and the service life of the fire-proof curtain can be prolonged.
Materials constituting the intermediate layer: the inner layer material has the characteristics of high temperature resistance and high thermal conductivity, and when subjected to high-temperature impact, the middle high-thermal-conductivity material can accelerate the heat transfer of the inner layer, so that the inner layer material cannot be burnt and damaged due to the fact that the temperature is increased excessively when subjected to spark impact for a long time.
The materials constituting the outer layer: the backup force of the whole fire-proof system of the fire-proof curtain forms a third spark impact line, and simultaneously prevents the damage of tools and roadbed stone external force to the structure of the fire-proof curtain.
As a preferred embodiment, the thickness of the inner layer of the fireproof curtain body is 0.2-3mm, the thickness of the middle layer of the fireproof curtain body is 0.02-3mm, and the thickness of the outer layer of the fireproof curtain body is 0.2-3 mm.
The ladder-shaped fire-proof curtain utilizes the inverse proportion relation between the temperature of the sparks and the flying distance, increases the distance between the sparks and the surface of the fire-proof curtain, and reduces the temperature of the sparks contacting the fire-proof curtain.
As a preferred embodiment, the inner layer, the intermediate layer and the outer layer are fixedly connected by bolts, nuts, air holes or rivets;
preferably, the middle layer and the outer layer are fixedly connected through sewing, and the outer edges of the middle layer and the outer layer are wrapped with metal meshes.
The four corners of the inner layer, the middle layer and the outer layer are fixedly connected through bolts, nuts, air holes or rivets, so that the connection is firmer, and the connection number of the connecting devices can be increased according to the size of the fireproof curtain.
The outer edges of the middle layer and the outer layer are wrapped with metal nets, the outer edges of the fire-proof curtain can be abraded in the using process, and the metal nets are wrapped on the outer edges of the middle layer and the outer layer in order to prolong the service life of the fire-proof curtain.
According to the novel fireproof curtain, as a preferred embodiment, a plurality of fireproof buffering parts which are arranged in parallel are rotatably connected to a fireproof curtain body, and the fireproof buffering parts are arranged in a spark-resistant area of the fireproof curtain body;
the planes of the fire-proof buffer parts which are arranged in parallel are parallel to the anti-spark surface of the fire-proof curtain body;
preferably, the distance between two adjacent fireproof buffering members in the same row is less than or equal to 120mm, and preferably, the distance between two adjacent fireproof buffering members in the same row is 2-120 mm.
As a preferred embodiment, the fire-proof curtain body is in a flat plate shape; the top of the fireproof buffering part is connected with the top of the fireproof curtain body through a first supporting rod, one end of the first supporting rod is perpendicular to the top of the fireproof curtain body and fixed, and the other end of the first supporting rod is rotatably connected with the top of the fireproof buffering part;
more preferably, the first support rod with the fire prevention bolster passes through the mounting and is connected, the mounting passes in proper order the fire prevention bolster first support rod realizes first support rod with the connection of fire prevention bolster.
As a preferred embodiment, the bottom of the fireproof buffering member is connected with the bottom of the fireproof curtain body through a second support rod, one end of the second support rod is fixed perpendicular to the bottom of the fireproof curtain body, and the other end of the second support rod is rotatably connected with the bottom of the fireproof buffering member;
more preferably, the second bracing piece with the fire prevention bolster passes through the mounting and is connected, the mounting passes in proper order the fire prevention bolster the second bracing piece realizes the second bracing piece with the connection of fire prevention bolster.
The front end of the fire curtain is provided with one or more rows of regularly arranged fire-proof buffer parts, the fire-proof buffer parts play roles in dispersing the concentrated impact force of sparks and relieving the impact tolerance state of materials, namely when the sparks impact the fire curtain, the sparks can firstly contact with the fire-proof buffer parts, under the impact action of the sparks and wind power generated when a vehicle runs, the adjacent fire-proof buffer parts are simultaneously deflected to form similar angles under wind pressure, according to Bernoulli's theorem and a formula in hydromechanics, namely when incompressible ideal fluid flows along a flow pipe regularly, the flow speed is increased, and the static pressure of the fluid is reduced; conversely, the flow velocity decreases and the static pressure of the fluid increases, with the equation p + (1/2) x ρ v ^2+ ρ gh constant (p, v, ρ are the pressure, flow velocity and fluid density, respectively, at a point inside the ideal fluid, h is the point height, and g is the acceleration of gravity). Due to the fact that high-speed fluid passes through the fireproof buffering parts, air pressure between the adjacent fireproof buffering parts is reduced, the parts are partially or completely attached, and then the parts are separated from one another automatically under the action of gravity (as shown in fig. 8). Simultaneously, the length of the mounting of fire prevention bolster is less than or equal to 100mm, and the length of mounting reduces, and the pendulum of fire prevention bolster is high more frequently, and is better to the reposition of redundant personnel effect of spark, according to simple pendulum cycle principle: t is 2 pi √ (L/g), and under a very small amplitude (angle), the period of simple harmonic motion of the simple pendulum is in direct proportion to the square root of the pendulum length, is in inverse proportion to the square root of the gravity acceleration and is independent of the amplitude and the mass of the pendulum ball; under the combined action of Bernoulli's law, gravity principle and single-swing principle, the fireproof buffer part can not be in a static state, and finally can be in a swing, deflection, rotation and other motion states when working, so that turbulence, shunting and blocking of high-speed sparks coming from head-on are realized, and the spark contact amount of the rear-end fireproof curtain is greatly reduced; effectively realizes turbulent flow shunting on high-speed sparks, so that the impact of the sparks on a rear-end fireproof curtain can be reduced by 65 percent.
As a preferred embodiment, the shape of the fire-proof curtain body is a step shape;
preferably, the top of fire prevention bolster with the top of fire prevention curtain body is passed through the mounting and is hung and be connected, the one end of mounting with the top fixed connection of fire prevention curtain body, the other end of mounting with the top fixed connection of fire prevention bolster realizes the fire prevention bolster with the rotation of fire prevention curtain is connected.
As a preferred embodiment, the first support rod and the second support rod are made of metal, and the fixing member is a metal wire, a metal rope or a non-metal high-temperature-resistant rope; preferably, the first support bar and the second support bar are both made of 304 stainless steel metal, and the fixing member is a metal wire.
As a preferred embodiment, the novel fire-proof curtain is characterized in that the fire-proof buffer member is composed of at least one of a polyether ether ketone plate, a polytetrafluoroethylene plate, a composite metal plate with an organic resin coating film thickness of 25-35 μm, a polyphenylene sulfide plate, a PFA plate, a carbon fiber plate, a graphite plate, a silicone rubber coated fabric layer, a high-temperature resistant fiber fabric plate or a high-temperature resistant coated fabric plate;
preferably, the shape of the fire damper is rectangular; the shape of the fire damper can also be a derivative shape on a rectangular basis (spiral) such as: rectangular and combinations of triangular, diamond or circular.
More preferably, the fireproof buffering member is cylindrical, and a rectangular shunting piece is vertically arranged on the cylindrical fireproof buffering member and uniformly arranged around the cylindrical fireproof buffering member.
Compared with the prior art, the invention has the beneficial effects that:
1. the novel fireproof curtain effectively overcomes the defects that spark carbon deposits are accumulated on the fireproof curtain in a large quantity, and the service life of the fireproof curtain is shortened; when the spark carbon deposits are attached to the inner layer of the fireproof curtain to reach certain volume and weight (the density reaches 3.53 g/cm)3) The carbon deposit in the spark will fall off automatically along with the increase of the self-weight and the impact of the follow-up spark.
2. The fireproof buffer piece arranged inside the novel fireproof curtain is equivalent to the fact that a fireproof wall is additionally arranged inside the fireproof curtain, and the burning loss time of the fireproof curtain is prolonged; the fire-proof buffer piece can regularly swing or rotate under the action of wind power generated by impact of high-speed sparks and rotation of the grinding wheel, and generates a cutting and shunting action on spark flow, so that sparks are in contact with the fire-proof curtain at an entrance angle smaller than 90 degrees, when the spark flow at the entrance angle smaller than 90 degrees impacts, the impact force on the surface of the fire-proof curtain is weakened, the friction force between the sparks and the surface of the fire-proof curtain is reduced, and the integrity of the surface of the fire-proof curtain is better protected.
3. The criss-cross labyrinth structure is formed between the fireproof buffering member and the fireproof buffering member, so that even if part of sparks pass through the fireproof buffering member, the flying speed of the sparks is reduced, the reaction force of the sparks contacting the surface of the fireproof curtain is correspondingly reduced, the splashing range of the sparks is reduced, and the secondary fire hazard caused by splashing after the sparks are rapidly rebounded is reduced.
Drawings
Fig. 1 is a schematic structural view of a rectangular fire damper of the novel fire curtain according to embodiment 4 of the present application;
fig. 2 is a schematic structural view of a spiral-shaped fire damper of the novel fire-proof curtain according to embodiment 4 of the present application;
fig. 3 is a schematic structural view of a rectangular fire damper of the novel fire-retardant curtain according to embodiment 5 of the present application;
fig. 4 is a schematic structural view of a spiral-shaped fire damper of the novel fire-retardant curtain according to embodiment 5 of the present application;
fig. 5 is a schematic structural view of a cylindrical fire damper of the novel fire curtain according to embodiment 5 of the present application;
fig. 6 is a schematic structural view of a rectangular fire damper of the novel fire-retardant curtain according to embodiment 6 of the present application;
fig. 7 is a schematic structural view of a spiral-shaped fire damper of the novel fire-retardant curtain according to embodiment 6 of the present application;
FIG. 8 is a schematic diagram of the movement of the fire damper; FIG. 8a is a schematic view of the fire damper in a fluid-free state; fig. 8b is a schematic view of the fire damper fluid passing through a reduced pressure state.
In the figure: 1. a fixing hole; 2. a fire curtain body; 3. a first support bar; 4. a fixing member; 5. a fire-resistant cushioning member; 6. a second support bar.
Detailed Description
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to examples, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The invention provides a novel fireproof curtain, which comprises a fireproof curtain body 2, wherein the fireproof curtain body 2 consists of an inner layer, a middle layer and an outer layer which are sequentially overlapped;
the inner layer is composed of at least one of a polyether-ether-ketone layer, a polyphenylene sulfide layer, a polytetrafluoroethylene layer or a PFA layer;
the middle layer consists of at least one layer of a heat-resistant metal plate layer, a composite metal plate layer with the thickness of an organic resin coating film being 25-35 mu m, a carbon fiber layer, a graphite layer, a high-temperature-resistant fiber fabric layer or a high-temperature-resistant coating fabric layer;
the outer layer is composed of at least one layer of a silicone rubber coated fabric layer and a high-temperature resistant composite fabric layer.
Because of this application novel fire prevention curtain's inlayer (the layer that contacts with the spark) comprises polyether ether ketone layer, polyphenylene sulfide layer, polytetrafluoroethylene layer or PFA layer, makes this application novel fire prevention curtain's inlayer has fine inadhesion nature, can prevent effectively that the spark carbon deposit from adhering to damage the fire prevention curtain on the fire prevention curtain, shortens its life.
As a preferred embodiment, theThe heat-resistant metal plate layer is made of a heat-resistant metal plate with the Ni content being more than or equal to 3.5 percent; the high-temperature resistant fiber fabric layer is made of SiO2The content is more than or equal to 42 percent; the heat-resistant temperature of a coating layer of the high-temperature-resistant coating fabric layer is more than or equal to 250 ℃; the silicone rubber coated fabric layer is formed by coating silicone rubber with SiO2Fabric with content more than or equal to 42 percent; the high-temperature-resistant composite fabric layer is a high-temperature-resistant composite single-zero aluminum foil or PTFE fabric layer.
As a preferred embodiment, the thickness of the inner layer of the fire curtain body 2 may be 0.2mm, 0.8mm, 1.5mm, 2mm, 2.5mm or 3mm, the thickness of the middle layer of the fire curtain body 2 may be 0.02mm, 0.05mm, 0.2mm, 0.4mm, 0.8mm, 1.2mm, 2.0mm, 2.5mm or 3.0mm, and the thickness of the outer layer of the fire curtain body 2 may be 0.2mm, 0.8mm, 1.2mm, 2.0mm, 2.5mm or 3.0 mm.
As a preferred embodiment, the inner layer, the intermediate layer and the outer layer are fixedly connected by bolts, nuts, air holes or rivets; in order to fix the middle layer and the outer layer more firmly, the middle layer and the outer layer are fixedly connected through sewing, and the outer edges of the middle layer and the outer layer are wrapped with metal meshes.
In the embodiment of the present application, the fireproof buffering member 5 may be formed of at least one of a peek sheet, a ptfe sheet, a composite metal sheet layer having an organic resin coating film thickness of 25 to 35 μm, a polyphenylene sulfide sheet, a PFA sheet, a carbon fiber sheet, a graphite sheet, a silicone rubber-coated fabric layer, a high temperature-resistant fiber fabric sheet, or a high temperature-resistant coated fabric sheet.
The fire curtain inner layer described herein is the layer of the fire curtain that directly contacts the spark.
Example 1
The fire-proof curtain body 2 in embodiment 1 is in a flat plate shape, and the fire-proof curtain body 2 consists of an inner layer, a middle layer and an outer layer which are sequentially overlapped;
the inner layer is a polyether-ether-ketone layer;
the middle layer is a carbon fiber layer;
the outer layer is a high-temperature resistant composite fabric layer.
Example 2
Embodiment 2 the shape of the fire-proof curtain body 2 is a flat plate, and the fire-proof curtain body 2 consists of an inner layer, a middle layer and an outer layer which are sequentially overlapped;
the inner layer is a polytetrafluoroethylene layer;
the middle layer is a graphite layer;
the outer layer is a high-temperature resistant composite fabric layer.
Example 3
Embodiment 3 the shape of the fire-proof curtain body 2 is a ladder shape, the fire-proof curtain body 2 is composed of an inner layer, a middle layer and an outer layer which are sequentially overlapped,
the inner layer is a polytetrafluoroethylene layer;
the middle layer is formed by combining a carbon fiber layer and a graphite layer, the carbon fiber layer and the graphite layer are overlapped, and the edges of the carbon fiber layer and the graphite layer are sewn and fixedly connected;
the outer layer is a silicon rubber coating fabric layer.
Example 4
Embodiment 4, the shape of the fire-proof curtain body 2 is a flat plate, and a plurality of fire-proof buffer members 5 arranged in parallel are rotatably connected to the fire-proof curtain body 2, and the fire-proof buffer members 5 are arranged in a fire-proof area of the fire-proof curtain; the planes of the fire-proof buffer pieces 5 which are arranged in parallel are parallel to the anti-spark surface of the fire-proof curtain body 2;
preferably, the distance between two adjacent fire bumpers 5 located in the same row may be 2mm, 5mm, 10mm, 20mm, 50mm, 80mm, 100mm or 120 mm.
In order to realize the rotation of the fireproof buffering component 5, the top of the fireproof buffering component 5 is connected with the top of the fireproof curtain body 2 through a first supporting rod 3, one end of the first supporting rod 3 is fixed perpendicular to the top of the fireproof curtain body 2, and the other end of the first supporting rod 3 is rotatably connected with the top of the fireproof buffering component 5; for realizing the free rotation of the fireproof buffering member 5, the first supporting rod 3 is connected with the fireproof buffering member 5 through the fixing member 4, the fixing member 4 sequentially penetrates through the fireproof buffering member 5 and the first supporting rod 3 to realize the connection of the first supporting rod 3 and the fireproof buffering member 5. Since the first supporting rod 3 has a certain high temperature resistance, in a preferred embodiment, the first supporting rod 3 is made of metal, more preferably, the first supporting rod 3 is made of 304 stainless steel metal, the fixing member 4 is made of metal wire, metal rope or nonmetal high temperature resistant rope, more preferably, the fixing member 4 is made of metal wire, so that when a spark hits on the fireproof buffering member 5, the fixing member 4 rotates with the fireproof buffering member 5 due to a certain twist.
The shape of the fireproof buffering member 5 can be rectangular, spiral or cylindrical, a rectangular splitter vane is vertically arranged on the cylindrical fireproof buffering member 5, and the rectangular splitter vane is uniformly arranged around the cylindrical fireproof buffering member 5.
Example 5
Embodiment 5, the shape of the fire-proof curtain body 2 is a flat plate, and a plurality of fire-proof buffer parts 5 arranged in parallel are rotatably connected to the fire-proof curtain body 2, and the fire-proof buffer parts 5 are arranged in a fire-proof area of the fire-proof curtain; the planes of the fire-proof buffer pieces 5 which are arranged in parallel are parallel to the anti-spark surface of the fire-proof curtain body 2;
preferably, the distance between two adjacent fire bumpers 5 located in the same row may be 2mm, 5mm, 10mm, 20mm, 50mm, 80mm, 100mm or 120 mm.
In order to realize the rotation of the fireproof buffering component 5, the top of the fireproof buffering component 5 is connected with the top of the fireproof curtain body 2 through a first supporting rod 3, one end of the first supporting rod 3 is fixed perpendicular to the top of the fireproof curtain body 2, and the other end of the first supporting rod 3 is rotatably connected with the top of the fireproof buffering component 5; in order to realize the free rotation of the fireproof buffering part 5, the first supporting rod 3 is connected with the fireproof buffering part 5 through a fixing part 4, and the fixing part 4 sequentially penetrates through the fireproof buffering part 5 and the first supporting rod 3 to realize the connection of the first supporting rod 3 and the fireproof buffering part 5;
the bottom of the fireproof buffering member 5 is connected with the bottom of the fireproof curtain body 2 through a second supporting rod 6, one end of the second supporting rod 6 is perpendicular to the bottom of the fireproof curtain body 2 and is fixed, and the other end of the second supporting rod 6 is rotatably connected with the bottom of the fireproof buffering member 5;
the second bracing piece 6 with the fire prevention bolster 5 is connected through mounting 4, mounting 4 passes in proper order the fire prevention bolster 5 the second bracing piece 6 realizes the second bracing piece 6 with the connection of fire prevention bolster 5.
As the first support bar 3 and the second support bar 6 both need to have certain high temperature resistance, as a preferred embodiment, the first support bar 3 and the second support bar 6 are made of metal, more preferably, the first support bar 3 is made of 304 stainless steel metal, and the fixing member 4 is a metal wire;
the shape of the fireproof buffering member 5 can be rectangular, spiral or cylindrical, a rectangular splitter vane is vertically arranged on the cylindrical fireproof buffering member 5, and the rectangular splitter vane is uniformly arranged around the cylindrical fireproof buffering member 5.
Example 6
Embodiment 6, the shape of the fire-proof curtain body 2 is a trapezoid, a plurality of fire-proof buffer members 5 arranged in parallel are rotatably connected to the fire-proof curtain body 2, and the fire-proof buffer members 5 are arranged in a fire-proof area of the fire-proof curtain body 2; the planes of the fire-proof buffer pieces 5 which are arranged in parallel are parallel to the anti-spark surface of the fire-proof curtain body 2;
preferably, the distance between two adjacent fire bumpers 5 located in the same row may be 2mm, 5mm, 10mm, 20mm, 50mm, 80mm, 100mm or 120 mm.
The top of the fireproof buffering component 5 is connected with the top of the fireproof curtain body 2 in a hanging mode through a fixing component 4, one end of the fixing component 4 is fixedly connected with the top of the fireproof curtain body 2 (the top of the trapezoid fireproof curtain is that when the fireproof curtain is in a use state, the surface perpendicular to a fireproof curtain anti-spark area is the top of the trapezoid fireproof curtain), and the other end of the fixing component 4 is fixedly connected with the top of the fireproof buffering component 5, so that the fireproof buffering component 5 is connected with the fireproof curtain in a rotating mode;
the fixing member 4 may be a wire, a metal rope or a non-metal high temperature resistant rope.
Comparative example 1
The novel fire protection curtain of comparative example 1 is different from the novel fire protection curtain of example 3 in that: comparative example 1 the fire resistant curtain body 2 does not include an inner layer and the rest of the structure is the same as the novel fire resistant curtain of example 3.
Comparative example 2
Comparative example 2 the fire resistant curtain described is a commercially available fire resistant curtain. The commercially available fire-proof curtain is: 6mm thick silicon rubber coating glass fiber fabric fire curtain.
The application a novel fire curtain's performance research:
the method comprises the steps of selecting a grinder with the rotation speed of 2850r/min, the rated voltage of 380V, the input power of 1100W and the assembly diameter of a grinding wheel of 250mm, adding grinding materials to the grinder to generate high-temperature sparks sputtered at a high speed, hanging the novel fireproof curtain nearby the grinder through a fixing hole 1, blocking polished sparks, detecting the performance of the fireproof curtain, and measuring the temperature of the surface contact sparks of a sample by using a temperature measuring instrument.
TABLE 1 Performance Studies of novel fire curtains
Figure BDA0002611776170000121
Figure BDA0002611776170000131
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.

Claims (10)

1. The novel fireproof curtain is characterized by comprising a fireproof curtain body, wherein the fireproof curtain body consists of an inner layer, an intermediate layer and an outer layer which are sequentially overlapped;
the inner layer is composed of at least one of a polyether-ether-ketone layer, a polyphenylene sulfide layer, a polytetrafluoroethylene layer or a PFA layer;
the middle layer consists of at least one layer of a heat-resistant metal plate layer, a composite metal plate layer with the thickness of an organic resin coating film being 25-35 mu m, a carbon fiber layer, a graphite layer, a high-temperature-resistant fiber fabric layer or a high-temperature-resistant coating fabric layer;
the outer layer is composed of at least one layer of a silicone rubber coated fabric layer and a high-temperature resistant composite fabric layer.
2. The novel fire curtain of claim 1, wherein the heat-resistant metal plate layer is made of a heat-resistant metal plate with a Ni content of 3.5% or more; the high-temperature resistant fiber fabric layer is made of SiO2The content is more than or equal to 42 percent; the heat-resistant temperature of a coating layer of the high-temperature-resistant coating fabric layer is more than or equal to 250 ℃; the silicone rubber coated fabric layer is formed by coating silicone rubber with SiO2Fabric with content more than or equal to 42 percent; the high-temperature-resistant composite fabric layer is a high-temperature-resistant composite single-zero aluminum foil or PTFE fabric layer.
3. The novel fire retardant curtain of claim 1, wherein the thickness of the inner layer of the fire retardant curtain body is 0.2-3mm, the thickness of the middle layer of the fire retardant curtain body is 0.02-3mm, and the thickness of the outer layer of the fire retardant curtain body is 0.2-3 mm.
4. The novel fire resistant curtain in accordance with claim 1, wherein said inner layer, said intermediate layer and said outer layer are fixedly connected by bolts, nuts, air holes or rivets;
preferably, the middle layer and the outer layer are fixedly connected through sewing, and the outer edges of the middle layer and the outer layer are wrapped with metal meshes.
5. The novel fire-proof curtain as claimed in claim 2, wherein a plurality of fire-proof buffer members arranged in parallel are rotatably connected to the fire-proof curtain body, and the fire-proof buffer members are arranged in a fire-proof area of the fire-proof curtain body; the planes of the fire-proof buffer parts which are arranged in parallel are parallel to the anti-spark surface of the fire-proof curtain body;
preferably, the distance between two adjacent fireproof buffering members in the same row is less than or equal to 120mm, and preferably, the distance between two adjacent fireproof buffering members in the same row is 2-120 mm.
6. The novel fire resistant curtain of claim 5, wherein the fire resistant curtain body is shaped as a flat plate;
preferably, the top of the fireproof buffering member is connected with the top of the fireproof curtain body through a first supporting rod, one end of the first supporting rod is fixed to be perpendicular to the top of the fireproof curtain body, and the other end of the first supporting rod is rotatably connected with the top of the fireproof buffering member;
more preferably, the first support rod with the fire prevention bolster passes through the mounting and is connected, the mounting passes in proper order the fire prevention bolster first support rod realizes first support rod with the connection of fire prevention bolster.
7. The novel fire-proof curtain as claimed in claim 6, wherein the bottom of the fire-proof buffer member is connected with the bottom of the fire-proof curtain body through a second support rod, one end of the second support rod is fixed perpendicular to the bottom of the fire-proof curtain body, and the other end of the second support rod is rotatably connected with the bottom of the fire-proof buffer member;
more preferably, the second bracing piece with the fire prevention bolster passes through the mounting and is connected, the mounting passes in proper order the fire prevention bolster the second bracing piece realizes the second bracing piece with the connection of fire prevention bolster.
8. The novel fire resistant curtain of claim 5, wherein the fire resistant curtain body is stepped in shape;
preferably, the top of fire prevention bolster with the top of fire prevention curtain body is passed through the mounting and is hung and be connected, the one end of mounting with the top fixed connection of fire prevention curtain body, the other end of mounting with the top fixed connection of fire prevention bolster realizes the fire prevention bolster with the rotation of fire prevention curtain is connected.
9. The novel fire resistant curtain of claim 7, wherein the first support bar and the second support bar are both made of metal, and the fixing member is a wire, a metal rope or a non-metal high temperature resistant rope; preferably, the first support bar and the second support bar are both made of 304 stainless steel metal, and the fixing member is a metal wire.
10. The fire resistant curtain as claimed in claim 5, wherein the fire resistant buffer member is composed of at least one of a polyetheretherketone sheet, a polytetrafluoroethylene sheet, a composite metal sheet having an organic resin coating film thickness of 25 to 35 μm, a polyphenylene sulfide sheet, a PFA sheet, a carbon fiber sheet, a graphite sheet, a silicone rubber-coated fabric layer, a high temperature resistant fiber fabric sheet or a high temperature resistant coated fabric sheet;
preferably, the shape of the fire damper is rectangular;
more preferably, the fireproof buffering member is cylindrical, and a rectangular shunting piece is vertically arranged on the cylindrical fireproof buffering member and uniformly arranged around the cylindrical fireproof buffering member.
CN202010764851.9A 2020-07-31 2020-07-31 Novel fireproof curtain Pending CN111775521A (en)

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KR20170096526A (en) * 2016-02-16 2017-08-24 윤주영 Thermally-stable multilayered fabric and the method thereof
CN210100939U (en) * 2019-05-15 2020-02-21 曲阜市海华高科技有限公司 Fireproof and explosion-proof PTFE composite film
CN215243382U (en) * 2020-07-31 2021-12-21 北京瓦米克高温材料有限公司 Novel fireproof curtain

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US20100071119A1 (en) * 2006-03-29 2010-03-25 Chapman Therman Products, Inc. Yarns and fabrics that shed liquids, gels, sparks and molten metals and methods of manufacture and use
US20090209155A1 (en) * 2008-02-15 2009-08-20 Chapman Thermal Products, Inc. Layered thermally-insulating fabric with thin heat reflective and heat distributing core
KR20170096526A (en) * 2016-02-16 2017-08-24 윤주영 Thermally-stable multilayered fabric and the method thereof
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