CN116118313A - Fireproof heat-insulating board and manufacturing method thereof - Google Patents

Fireproof heat-insulating board and manufacturing method thereof Download PDF

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Publication number
CN116118313A
CN116118313A CN202211100635.XA CN202211100635A CN116118313A CN 116118313 A CN116118313 A CN 116118313A CN 202211100635 A CN202211100635 A CN 202211100635A CN 116118313 A CN116118313 A CN 116118313A
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CN
China
Prior art keywords
layer
heat
fire
decorative
lattice support
Prior art date
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Pending
Application number
CN202211100635.XA
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Chinese (zh)
Inventor
祝德春
尚效周
朱臻赜
姚亮
邓平安
杜戴宁
严代智
靳全
周桂生
丁文
段薇
林元华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
Original Assignee
Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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Publication date
Application filed by Nari Technology Co Ltd, NARI Nanjing Control System Co Ltd filed Critical Nari Technology Co Ltd
Priority to CN202211100635.XA priority Critical patent/CN116118313A/en
Publication of CN116118313A publication Critical patent/CN116118313A/en
Pending legal-status Critical Current

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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B5/20—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 features of a layer of foamed material foamed in situ
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a fire-resistant heat-insulating board and a manufacturing method thereof. The outer surface of the decorative layer of the fire-resistant heat-insulating board is a fire-receiving surface, the inner surface is a fire-insulating layer mounting surface, the inner surface and the outer surface of the decorative plate are connected through a lattice structure, and a heat flow channel is arranged between the inner surface and the outer surface of the decorative plate. The fire-resistant heat-insulating board provided by the invention has excellent fire resistance, can be installed in a modularized manner, and can be applied to fire prevention, heat insulation and heat preservation of an electrochemical energy storage cabin, an energy storage cabinet and an electrical equipment cabin.

Description

Fireproof heat-insulating board and manufacturing method thereof
Technical Field
The invention relates to a fire-resistant heat-insulating board and a manufacturing method thereof, which are used for flame retardation, heat insulation and heat insulation of an electrochemical energy storage cabin, an energy storage cabinet, an electrical equipment cabin and the like.
Background
And when the temperature difference between the inside and the outside of the square cabin is overlarge, heat can be exchanged between the inside and the outside of the square cabin through the square cabin wall, and finally, the balance state between the inside and the outside of the cabin wall is achieved. If the heat conduction capacity of the square cabin wall is good, namely the heat conduction coefficient of the square cabin wall is high, the heat exchange speed between the inside and the outside of the square cabin is high, when the external environment temperature is lower than-20 ℃, the temperature of the electrochemical energy storage system is also rapidly reduced to the environment temperature, and at the moment, the lithium iron phosphate battery is difficult to charge or discharge, so that the energy storage system cannot be used normally. In case of heating the energy storage battery in the cabin before starting in a low temperature environment, the charging and discharging functions of the battery can be started theoretically, but for the cabin wall with better heat conduction capability, the heating heat loss will be larger, which means that more energy is consumed. In addition, when unexpected conditions of energy storage battery combustion occur, in order to effectively prevent heat inside the energy storage cabin from leaking and damaging external equipment or personnel, a fireproof heat-insulating material with excellent fireproof performance and lower heat conduction capacity needs to be used as a square cabin wall heat-insulating material.
In the aspect of heat preservation materials, the traditional rock wool heat preservation board has good fireproof performance, but the heat conductivity coefficient is about 0.040W/(m.K), and the heat preservation performance is not high enough. The heat conductivity coefficient of the polyurethane foaming heat insulation board for the refrigeration equipment is about 0.025W/(m.K), the heat conductivity coefficient of the improved VIP-polyurethane foaming heat insulation board can be lower than 0.010W/(m.K), the heat insulation performance is greatly improved, but the fire resistance performance of the improved VIP-polyurethane foaming heat insulation board is poor. When the material is used for heat preservation of the energy storage cabin, the heat preservation performance of the material is not good enough, and the normal use of the electrochemical energy storage battery is seriously affected; or the material may catch fire rapidly or melt under high temperature broil when the electrical equipment is on fire, causing damage that is difficult to recover and causing a more significant fire. Therefore, the development of a material with excellent fire resistance and heat preservation performance has good application prospect.
Disclosure of Invention
The invention aims to: the invention aims to provide a modularized heat-insulating plate with low heat conductivity coefficient and high flame retardant property for electrochemical energy storage cabins, energy storage cabinets, electrical equipment cabins and other types of equipment and a manufacturing method thereof.
The technical scheme is as follows: the invention relates to a fire-resistant heat-insulating board which comprises a decorative layer, a fire-insulating layer, a flame-retardant layer, a heat-insulating layer and a heat-insulating layer which are sequentially arranged and connected;
the decorative layer is provided with a decorative panel, a lattice support plate and connecting columns; the heat flow guiding holes are formed in the decoration panel, the outer surface of the decoration panel is a fire receiving surface, the outer surface of the lattice support plate is a fire insulating layer mounting surface, the decoration panel is welded with the lattice support plate through a lattice support structure which is positioned on the lattice support plate and is formed by stamping, and a heat flow channel is formed between the decoration panel and the lattice support plate.
The invention relates to a manufacturing method of a fire-resistant heat-insulating board, which comprises the following steps:
(1) And paving the fireproof structure. Firstly, paving a fire-insulating layer on the inner surface of a decorative layer (namely the outer surface of a dot matrix supporting plate), then paving a flame-retardant layer on the surface of the fire-insulating layer, and then connecting the flame-retardant layer, the fire-insulating layer and the flame-retardant layer by adopting a fastener to connect with a connecting column positioned on the decorative layer, thereby tightly connecting the decorative layer, the fire-insulating layer and the flame-retardant layer.
(2) Paving the heat preservation structure. Firstly, a part of the fastener exposed out of the surface of the flame retardant layer is sealed on the surface of the flame retardant layer by adopting a heat insulation pad, and then, the heat insulation layer is laid on the surface of the flame retardant layer in an overhead manner by adopting a sparse lattice support structure.
(3) And (5) foaming and integrating the heat insulation layer. Foaming a layer of heat insulation aerogel-polyurethane mixed heat insulation material on the surface of the flame retardant layer, and packaging the heat insulation layer between the heat insulation layer and the flame retardant layer, so that a complete fire-resistant heat insulation board is formed.
The sparse lattice support structure is a hollow cylindrical structure with two closed ends, one end of the sparse lattice support structure is adhered to the surface of the flame-retardant layer, and the other end of the sparse lattice support structure is used for suspending and supporting the heat insulation layer at a position which is at a fixed height from the surface of the flame-retardant layer in an adhering mode.
The beneficial effects are that: according to the fire-resistant heat-insulating board and the manufacturing method thereof, when the fire receiving surface of the decorative layer contacts open fire, the fire-insulating layer blocks heat absorbed by the decorative layer at the interface of the decorative layer and the fire-insulating layer, and meanwhile, the heat exchanges heat with the outer surface of the decorative layer through a heat flow channel positioned in the middle of the decorative layer in a high-temperature gas flowing mode, so that the heat-insulating layer and the heat-insulating layer are prevented from being melted or burnt under the action of high temperature. When the surface of the heat preservation layer contacts with heat (including high temperature and low temperature) load, the heat preservation layer can reduce the transmission rate of the heat load, and when the heat load is slowly transmitted to the heat insulation layer, the heat insulation layer rapidly blocks the heat load, so that the heat load is prevented from being transmitted to the decorative surface of the fire-resistant heat insulation board, and the heat preservation and heat insulation effects are realized. The fire-resistant heat-insulating board has excellent fireproof performance, and the fire-resistant grade reaches A2 grade; meanwhile, the heat insulation board has excellent heat insulation performance, the heat conductivity coefficient of the heat insulation board is lower than 0.005W/(m.K), and the heat insulation board can be installed in an equipment cabin in a modularized manner, so that the fire resistance and heat insulation performance of the equipment cabin wall are greatly improved.
Drawings
FIG. 1 is a view showing the whole construction of the fire-resistant heat insulation board according to the present invention.
FIG. 2 is a schematic view of the structure of the decorative layer of the fire-resistant heat insulation board in the invention.
FIG. 3 is a schematic view showing the internal structure of the decorative layer of the fire-resistant heat insulation board in the invention.
FIG. 4 is a schematic view of a lattice support structure of a fire-resistant insulation panel according to the present invention.
FIG. 5 is a schematic view of the structure of the fire-resistant heat insulation board according to the present invention.
FIG. 6 shows a first embodiment of the refractory insulation panel according to the present invention.
FIG. 7 shows a second embodiment of the refractory insulation panel according to the present invention.
FIG. 8 is a diagram of an application of the fire-resistant insulation panel assembly of the present invention.
Detailed Description
The technical scheme of the invention is further described below by referring to examples.
The invention provides a fire-resistant heat-insulating board and a manufacturing method thereof, comprising a decorative layer 1, a fire-insulating layer 2, a flame-retardant layer 3, a heat-insulating layer 4 and a heat-insulating layer 5.
The decorative layer 1 is composed of a decorative panel 11, a lattice support plate 12 and connecting columns 13, wherein heat flow guiding holes 111 are formed in the decorative panel 11, and the outer surface of the decorative panel 11 is a fire receiving surface; the outer surface of the lattice support plate 12 is the installation surface of the fire barrier layer 2, the decoration panel 11 and the lattice support plate 12 are welded and connected through a lattice support structure 121 formed by stamping on the lattice support plate 12, and a heat flow channel 14 is formed between the decoration panel 11 and the lattice support plate 12.
The fire-resistant layer 2 is made by mixing glass fiber and aerogel particles, and is cut and bent into a required shape.
The flame-retardant layer 3 is made of carbon fiber plates or porous foam plates through cutting and bending.
And the heat insulation layer 4 is formed by filling glass fiber into an aluminum foil bag, vacuumizing, sealing and bending.
The heat preservation layer 5 is formed by mixing and foaming aerogel-polyurethane added with a flame retardant.
The invention provides a fire-resistant heat-insulating board and a manufacturing method thereof, wherein the manufacturing process comprises the following steps:
(1) The fire-proof layer 2 is attached to the inner surface of the decorative layer 1, and then the flame-retardant layer 3 is attached to the surface of the fire-proof layer 2.
(2) Small round holes are formed in the positions, corresponding to the connecting columns 13, of the flame retardant layer 3, the flame retardant layer is paved on the surface of the fire-proof layer, and then the flame retardant layer is connected with the connecting columns 13 positioned on the decorative layer 1 by adopting the fasteners 6, so that the decorative layer 1, the fire-proof layer 2 and the flame retardant layer 3 are tightly connected;
(4) And a round heat insulation cushion block 7 is adhered to the part of the fastener 6 exposed out of the material surface of the flame retardant layer 3, so that the fastener 6 is completely sealed on the surface of the flame retardant layer 2. The heat insulation cushion block 7 and the fire insulation layer 2 are made of the same material, and the diameter of the heat insulation cushion block 7 is 3-4 times of that of the exposed part of the fastener 6.
(5) The lattice support structure 8 is mounted on the surface of the flame retardant layer 3, and the mounting surface 81 of the lattice support structure 8 is connected with the flame retardant layer 3 through an adhesive process.
(6) And foaming a layer of polyurethane material added with flame retardant on the surface of the flame retardant layer 3 by adopting a high-density foaming process, connecting the heat insulation layer 4 on the supporting surface 82 of the lattice supporting structure 8 by adopting an adhesive process, and finally foaming a layer of polyurethane material added with flame retardant on the surface of the heat insulation layer 4 to form the heat insulation layer 5.
(7) Through the above process steps, the fire-resistant heat-insulating board is manufactured.
The heat transfer capacity parameter of the fire-resistant heat insulation board and the manufacturing method thereof provided by the invention is calculated by the following formula:
Figure BDA0003840208380000031
the thickness and the heat conductivity coefficient of the decorative layer 1, the fire-proof layer 2, the flame-retardant layer 3, the heat insulation layer 4 and the heat preservation layer 5 are h in sequence 1 ,…,h 5 Lambda (lambda) 1 ,…,λ 5 The total thickness of the fire-resistant heat-insulating board is h.
When the thicknesses of the decorative layer 1, the fire-proof layer 2, the flame-retardant layer 3, the heat-insulating layer 4 and the heat-insulating layer 5 of the fire-resistant heat-insulating plate and the manufacturing method thereof are respectively 1.0mm, 5.0mm, 2.0mm, 22.0mm and 30.0mm, the heat conductivity coefficients of the decorative layer 1, the fire-proof layer 2, the flame-retardant layer 3, the heat-insulating layer 4 and the heat-insulating layer 5 are respectively 237.000W/(m.K), 0.018W/(m.K), 3.00W/(m.K), 0.002W/(m.K) and 0.025W/(m.K), the comprehensive heat conductivity coefficient of the fire-resistant heat-insulating plate and the manufacturing method thereof can be calculated to be 0.0048W/(m.K).
In the process of modular assembly, the fire-resistant heat-insulating material can be designed into a main heat-insulating plate structure form shown in fig. 4, and the fire-resistant heat-insulating plate and the manufacturing method thereof can be designed into an auxiliary heat-insulating plate structure form shown in fig. 5. As shown in fig. 6, in the modular assembly process, the main heat-insulating plate is embedded into the heat-insulating plate mounting groove of the square cabin, and a secondary heat-insulating plate is pressed between two adjacent heat-insulating plates, so that the heat loss at the bridge cut-off position is reduced, and the standardized production and modular mounting of the heat-insulating plates are realized.

Claims (4)

1. The utility model provides a fire-resistant type heat preservation heat insulating board which characterized in that: comprises a decoration layer, a fire-proof layer, a flame-retardant layer, a heat-insulating layer and a heat-preserving layer which are sequentially arranged and connected;
the decorative layer is provided with a decorative panel, a lattice support plate and connecting columns; the heat flow guiding holes are formed in the decoration panel, the outer surface of the decoration panel is a fire receiving surface, the outer surface of the lattice support plate is a fire insulating layer mounting surface, the decoration panel is welded with the lattice support plate through a lattice support structure which is positioned on the lattice support plate and is formed by stamping, and a heat flow channel is formed between the decoration panel and the lattice support plate.
2. The fire resistant insulation panel of claim 1, wherein: the sparse lattice support structure is a hollow cylindrical structure with two closed ends, one end of the sparse lattice support structure is adhered to the surface of the flame retardant layer, and the other end of the sparse lattice support structure is used for hanging and supporting the heat insulating layer at a position with a fixed height from the surface of the flame retardant layer in an adhering mode.
3. The fire resistant insulation panel of claim 2, wherein: when the fire receiving surface of the decorative layer contacts open fire, the fire isolating layer isolates the heat absorbed by the decorative layer at the interface of the decorative layer and the fire isolating layer, and simultaneously, the heat exchanges heat with the outer surface of the decorative layer through a heat flow channel positioned in the middle of the decorative layer in a high-temperature gas flowing mode, so that the heat insulating layer and the heat insulating layer are prevented from being melted or burned under the action of high temperature; when the surface of the heat preservation contacts with the heat load, the heat preservation can reduce the transmission rate of the heat load, and when the heat load is slowly transmitted to the heat insulation layer, the heat insulation layer rapidly blocks the heat load, so that the heat load is prevented from being transmitted to the decorative surface of the fire-resistant heat insulation board, and the heat preservation and heat insulation effects are realized.
4. A method of manufacturing a fire resistant thermal insulation panel according to any one of claims 1 to 3, comprising the steps of:
(1) Paving a fireproof structure; the fire-proof layer is laid on the inner surface of the decorative layer, then the flame-retardant layer is laid on the surface of the fire-proof layer, and then the fire-proof layer is connected with the connecting column on the decorative layer by adopting the fastener, so that the decorative layer, the fire-proof layer and the flame-retardant layer are tightly connected;
(2) Paving a heat preservation structure; sealing the part of the fastener exposed out of the surface of the flame retardant layer on the surface of the flame retardant layer by adopting a heat insulation pad, and then overhead laying the heat insulation layer on the surface of the flame retardant layer by adopting a sparse lattice support structure;
(3) Foaming and integrating the heat preservation layer; foaming a layer of aerogel-polyurethane mixed heat insulation material on the surface of the flame-retardant layer, and packaging the heat insulation layer between the heat insulation layer and the flame-retardant layer, thereby forming the complete fire-resistant heat insulation board.
CN202211100635.XA 2022-09-09 2022-09-09 Fireproof heat-insulating board and manufacturing method thereof Pending CN116118313A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204144345U (en) * 2014-08-01 2015-02-04 北京新能源汽车股份有限公司 A kind of electrokinetic cell casing for electric automobile
CN107311013A (en) * 2017-06-05 2017-11-03 上海华美电梯装饰有限公司 A kind of elevator thermal insulation noise insulation decorative plate
CN114801400A (en) * 2022-05-11 2022-07-29 江汉大学 Flame-retardant composite fireproof assembly of lithium ion battery and preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204144345U (en) * 2014-08-01 2015-02-04 北京新能源汽车股份有限公司 A kind of electrokinetic cell casing for electric automobile
CN107311013A (en) * 2017-06-05 2017-11-03 上海华美电梯装饰有限公司 A kind of elevator thermal insulation noise insulation decorative plate
CN114801400A (en) * 2022-05-11 2022-07-29 江汉大学 Flame-retardant composite fireproof assembly of lithium ion battery and preparation method and application thereof

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