"Housing Decoration" PPT courseware

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"Housing Decoration" PPT courseware

Four principles that must be met when decorating a new house

For most families, buying a new home is about living at home. The main purpose of decoration is for your own use, not for others to see.

1. Safety is the most important

2. Easy to use and comfortable

3. Save energy and water

4. Reduce maintenance costs

Main 4 types of water pipes to choose from

The choice of water pipes is important because the pipes are buried under the floor or in the wall. If the pipe breaks or the joint leaks, the consequences will be disastrous.

1. Galvanized steel pipe

Traditional water pipes are easy to rust and can easily cause secondary serious pollution of drinking water. The Ministry of Construction, the State Economic and Trade Commission, the National Bureau of Quality and Technical Supervision, and the National Building Materials Administration jointly issued a document (Building Housing No. 1999-295 ) statement that the use of galvanized steel pipes in new urban buildings will be prohibited from June 1, 2001

2. PP-R pipe

Corrosion-resistant, non-scaling, long life, reliable connection, low cost, currently widely used in decoration.

3. Aluminum-plastic composite pipe

There is an aluminum tube in the middle, with plastic inside and outside. It is corrosion-resistant, non-scaling, has a long life, and is bendable. It is rarely used in decoration at present.

4. Copper tube

It was used in luxury decoration. The pipes are connected by welding, which has high reliability. An insulation jacket (rubber-plastic pipe) needs to be added outside. The process is complicated and the cost is high, so it is rarely used.

Things to note when purchasing faucets, switches and other accessories

1. All wearing parts must be easily disassembled and replaced;

2. Purchase high-quality brand goods, write down the quality guarantee (1 to 5 years) and keep the receipt;

3. Try to buy products of the same brand in fixed stores to facilitate warranty, replacement and purchase;

Increase the necessity of "secondary water sealing"

Adding a number of "secondary water seals" to the sewer pipes can fully isolate the odor coming from other places in the sewer pipe, which can effectively prevent the odor from escaping and ensure fresh indoor air.

Pay attention to the installation of natural gas pipes to prevent gas leakage

1. Aluminum-plastic composite pipes are usually used to connect gas meters, gas stoves, gas water heaters, etc. It should be noted that all pipe joints must be exposed to ensure easy maintenance;

2. Carry out leak-proof inspections and take timely measures.

Several measures to reduce indoor decoration pollution

1. Control pollution sources. First, we must control it at the source. Using decoration materials that meet national standards and have low pollution is an effective measure to reduce the content of toxic and harmful gases in the room. For example, choosing paints and adhesives that meet environmental requirements, and water-based materials with no or low pollution can greatly reduce the benzene content in indoor air; purchase and use wood products that have been specially baked; purchase furniture directly from furniture stores , try to make as little furniture as possible in the house, which will help reduce the amount of formaldehyde released. (Recommendation＊＊＊＊＊＊)

2. Simple decoration. Family room decoration should be practical and simple. Excessive decoration can easily lead to the superposition effect of pollution. (Recommendation **)

3. Plant green lung purification. Green plants used to decorate the living environment are a powerful tool for purifying indoor air. For example, ivy and iron trees can absorb benzene and organic matter, and plants such as spider plants and aloe vera planted in the home can absorb formaldehyde. Studies have shown that under 24-hour lighting conditions, aloe vera can eliminate 90% of formaldehyde in 1 cubic meter of air. Under normal circumstances, in a room of about 10 square meters, it is more appropriate to place two pots of 1.5-meter-high plants. (Recommendation: Chlorophytum, tiger orchid **)

4. Air exchange method. Air exchange is ventilation. The higher the indoor and outdoor air exchange rate, the better the effect of reducing indoor pollutants. (Recommendation: ＊＊＊＊)

5. Bamboo charcoal and activated carbon adsorption method. Bamboo charcoal and activated charcoal are internationally recognized experts in drug addiction. Bamboo charcoal has 2 to 3 times stronger adsorption capacity than ordinary charcoal. Well-known brands include Jinggang Moso Bamboo, Mai Tan Weng, Charcoal Language, Jian Bamboo, Bamboo Tiger, Shanliren, etc. (Recommendation＊＊＊)

6. Local trick: Make hot tea with 300 grams of black tea and two basins of water, put it in the room, and open the window for ventilation. The indoor formaldehyde content will drop by more than 90% within 48 hours. (Recommendation＊＊＊)

7. Chemical removal of formaldehyde, etc. Using chemical sprays to remove pollution is quick and effective and is a common method used by pollution control companies. The problem is that the release of formaldehyde is a slow process and may also cause secondary pollution (recommendation*)

Activated carbon is used in indoor pollution control

The main purpose:

1. New home: used to absorb toxic and harmful gases such as formaldehyde, benzene series, ammonia and radon in the indoor air of new homes and continuously released into the air, and quickly remove decoration odors.

2. New furniture: used to absorb formaldehyde, benzene series, and various odors that are continuously released by new furniture.

Usage and dosage:

1. Dosage: For newly renovated living rooms, use one pack (50g) per square meter. The height of the placement space should be between 60 cm and 2 meters. Focus on indoor pollution sources and places where people frequently move; indoors For daily environmental protection, the dosage can be appropriately reduced according to the degree of pollution. (Note: 50g per square meter is used to calculate the total space usage, and does not mean that 50g per square meter is evenly placed)

2. Usage:

A. Open the package and take out the activated carbon adsorption bag, and place it directly in the closet, shoe cabinet, bookcase, etc. in the room; next to the computer, on the desk, coffee table, sofa and other places where people often move, and other places where the air needs to be purified. .

B. When laying the floor, lay the activated carbon adsorption bag directly underneath or tear off the adsorption bag and spread the activated carbon under the floor.

C. Use it for about 20 days and expose it to the sun for 3-5 hours to restore its activity and continue to use it. It can be used repeatedly for 6-10 months.

Keywords: Housing decoration teaching courseware, E-education edition third grade science PPT courseware download for the second volume, third grade science slide courseware download, Housing decoration PPT courseware download, .PPT format;

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Update Time: 2024-06-29

This template belongs to science courseware E-education edition third grade science volume 2 industry PPT template

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