CN207646916U - A kind of vacuum composite wall insulating board - Google Patents

Abstract

The utility model belongs to the technical field of building wall insulation, and discloses a vacuum composite wall insulation board, which is composed of an outer rock wool board, a middle vacuum plastic board, and an inner polyurethane board. The rock wool board, the vacuum plastic board, the vacuum Both the plastic board and the polyurethane board are tightly connected by adhesive. The vacuum plastic board includes two layers of foamed plastic boards and a vacuum drawn between the two layers of foamed plastic boards. The utility model is used for heat preservation of building walls, reduces heat loss and energy consumption, and at the same time prevents fire spread caused by burning of building walls, and avoids casualties and property losses as much as possible.

Description

A vacuum composite wall insulation board

technical field

The utility model belongs to the technical field of building wall thermal insulation, in particular relates to a vacuum-connected multilayer wall thermal insulation board material.

Background technique

At this stage, with more and more high-rise buildings, urban housing, office buildings, dormitories and other construction facilities are becoming more and more advanced and modern. In this context, more attention should be paid to the safety of buildings, otherwise it will lead to great casualties and economic losses. Among them, cases of fires caused by wall insulation materials are common, and the safety of building walls has always been concerned. In Nanjing Central International Plaza, Jinan Olympic Sports Center, Cultural Center Affiliated to Beijing CCTV's new site, and Shanghai Jiaozhou teachers' apartment, fires occurred in building exterior wall insulation materials, causing serious casualties and property losses. Building flammable and combustible insulation materials have become an important hidden danger of fire.

There are many problems with the thermal insulation materials currently on the market. For example, many A-level fireproof materials and B1-level fireproof materials can effectively prevent building wall materials from burning, but the thermal insulation effect is not obvious; many organic materials have good thermal insulation effects, but they are combustible B2-level fireproof materials. Materials or flammable B3 fireproof materials will catch fire and burn when exposed to open flame or high temperature, which will aggravate the spread of fire.

my country promulgated the "Interim Provisions on Fire Protection of Civil Building External Thermal Insulation System and External Wall Decoration" with Gongtongzi [2009] No. 46, which stipulates that the external thermal insulation materials of civil buildings must use Class A materials with combustion performance.

The insulation materials currently on the market are roughly divided into inorganic materials and organic materials. Inorganic thermal insulation materials: such as rock wool board, foamed ceramics, foamed cement board, etc. are all A-class fireproof materials, which have good fireproof performance, non-toxic and harmless, and are environmentally friendly, but have high thermal conductivity, poor thermal insulation effect, high water absorption, and water resistance. The performance is poor, and there is a problem that it is not easy to construct. At present, new inorganic thermal insulation materials, such as foam glass, can solve the above problems and meet the requirements of thermal insulation, non-toxic, harmless and environmental protection. However, foam glass has difficulties and defects in the production process, and bubbles are often encountered in the production process. Problems such as uneven structure or large bubbles, interconnected holes and cavities affect the yield and material cutting rate, so the current market share is not high. Organic insulation materials: such as EPS insulation board and XPS insulation board, have low thermal conductivity, good insulation effect, low density and low water absorption, but these materials have poor air permeability and poor material strength, which can easily lead to cracking and falling off of the finish. More importantly, it is flammable and emits toxic gases during combustion. Some modified organic materials, such as rigid polyurethane foam, have low density, low water absorption, and better heat preservation effect, but they are also flammable and emit toxic gases during combustion.

Utility model content

In order to solve the above technical problems, the utility model provides a vacuum composite wall thermal insulation board, which is used for thermal insulation of building walls, reduces heat loss and energy consumption, and at the same time prevents the fire from spreading due to the burning of building walls. Try to avoid causing casualties and property damage.

The utility model is realized through the following technical solutions:

A vacuum composite wall insulation board, consisting of an outer rock wool board, a middle vacuum plastic board, and an inner polyurethane board, the rock wool board and the vacuum plastic board, the vacuum plastic board and the polyurethane board are tightly connected by adhesive.

Wherein, the vacuum plastic board includes two layers of foamed plastic boards and a vacuum drawn between the two layers of foamed plastic boards.

The beneficial effects of the utility model are:

The utility model adopts a vacuum plastic board to connect the outer rock wool board and the inner polyurethane board, which can not only meet the A-level standard of combustion performance but also meet the requirement of good heat preservation effect. The rock wool board on the outer layer has a combustion performance of Class A, so that when a fire occurs or the indoor temperature is too high, the consequences of the fire spreading due to the combustion of the vacuum composite wall insulation board will not occur. The polyurethane board in the inner layer mainly achieves the effect of heat preservation. The thermal conductivity of polyurethane is low, which can effectively maintain the indoor temperature; at the same time, when the polyurethane board is connected to the wall, the construction is easy and can save manpower and material resources. The vacuum plastic plate in the middle is made of many closely arranged vacuum bulbs fused between two layers of plastic plates. Since the vacuum bulbs can effectively reduce heat transfer, it will not cause the temperature of the inner polyurethane plate to be too high in the event of a fire. And cause the consequences of burning. When the indoor heat is transferred to the outside, it needs to pass through three layers of polyurethane board, vacuum plastic board and rock wool board; similarly, when the outdoor heat is transferred to the room, it also needs to pass through three layers, so the vacuum plastic board of the present invention can achieve Fire prevention, reduce casualties and property losses, but also achieve heat preservation, reduce heat loss and energy consumption.

Description of drawings

Fig. 1 is the structural representation of the vacuum composite wall insulation board of the present utility model;

Fig. 2 is a schematic diagram of the installation of the vacuum composite wall insulation board of the present invention.

In the above figure: 1. Rock wool board; 2. Vacuum plastic board; 3. Polyurethane board; 4. Wall.

Detailed ways

In order to further understand the content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

As shown in Figure 1 and Figure 2, this embodiment provides a vacuum composite wall insulation board, which is composed of three layers of materials, including an outer rock wool board 1, a middle vacuum plastic board 2, and an inner polyurethane board 3, Rock wool board 1, vacuum plastic board 2, and polyurethane board 3 are tightly connected by adhesive to form a whole.

The rock wool board 1 on the outer layer can meet the requirements of Class A combustion performance, and it can be installed on the outer layer by using its non-combustible characteristics, which can effectively prevent burning caused by burning or high temperature of the house, and the rock wool board 1 also has certain thermal insulation properties . At the same time, it is more difficult to directly construct the rock wool board 1 on the wall, and it is arranged on the outer layer to connect with the vacuum plastic board 2 in the middle, which avoids the trouble of direct construction of the rock wool board 1 .

The vacuum plastic board 2 in the middle is composed of two layers of foamed plastic boards and the vacuum drawn between the two layers of foamed plastic boards, which can effectively prevent heat transfer. It combines the inner polyurethane board 3 and the outer rock wool board 1 to prevent the polyurethane board 3 of the inner layer from burning due to excessive temperature. At the same time, the vacuum plastic panel 2 can also prevent heat transfer and has the function of heat preservation.

The polyurethane board 3 in the inner layer is an organic thermal insulation material, which has a low thermal conductivity and has a good thermal insulation effect. It is characterized in that it can effectively maintain the indoor temperature and reduce heat loss and energy consumption. Compared with other organic insulation boards, the polyurethane board is easier to construct, and it is easy to construct on the wall.

The rock wool board 1 and the vacuum plastic board 2 are connected by an adhesive, and the two are in close contact. The polyurethane board 3 and the vacuum plastic board 2 are also connected by an adhesive, and the two are in close contact, so that the insulation board is integrated.

The rock wool board 1 can be fireproof. When a fire occurs or the indoor temperature is too high, the rock wool board 1 on the outer layer will not burn. At the same time, the vacuum part in the vacuum plastic board 2 can effectively reduce the heat transfer to the polyurethane on the inner layer. board 3, so as not to cause the polyurethane board 3 of the inner layer to burn due to excessive temperature. The polyurethane board 3 can achieve effective heat preservation, and its thermal conductivity is low so that the heat in the room is rarely transferred to the outside. The heat in the room is transferred to the outside through three layers, and each layer can keep the indoor temperature warm, so it is difficult for the heat in the room to be transferred to the outside. Similarly, when the outdoor heat is transferred to the indoor, it also needs to pass through three layers, and it is also difficult to transfer to the indoor. Therefore, the vacuum composite wall insulation board of the utility model can not only prevent casualties and property losses caused by the burning of the wall insulation material, but also improve the insulation effect and reduce heat loss and energy consumption.

The polyurethane board 3 of the innermost layer is constructed with the wall, using the current method of directly constructing the polyurethane board 3, using an adhesive to directly construct on the wall 4 and arrange them closely, as shown in FIG. 2 .

Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative and not restrictive. Under the enlightenment of the utility model, those of ordinary skill can also make many specific transformations without departing from the gist of the invention and the protection scope of the claims, and these all belong to the protection scope of the utility model.

Claims (2)

1. A vacuum composite wall insulation board is characterized in that it is composed of a rock wool board on the outside, a vacuum plastic board in the middle, and a polyurethane board on the inside, and the rock wool board and the vacuum plastic board and the vacuum plastic board The board and the polyurethane board are tightly connected by adhesive. 2. A vacuum composite wall insulation board according to claim 1, wherein the vacuum plastic board comprises two layers of foamed plastic boards and a vacuum drawn between the two layers of foamed plastic boards.