Heat insulating device

Abstract

The invention relates to a heat insulating device, belonging to the technical field of chemical experiment supplies. The heat insulating device mainly comprises an anti-explosion vessel including a cover, wherein a sand grains heat insulating layer is arranged in the anti-explosion vessel; a support base is arranged below the anti-explosion vessel; the support base comprises a bracket including a support net; plastic sleeves are arranged on the leg parts of the bracket; and a groove corresponding to the outer diameter of the anti-explosion vessel is arranged on the middle of the support net. According to the invention, an asbestos wire gauze is substituted; in a using procedure, the heat insulating device plays a role by dint of change of physical performance of the heat insulating device; in addition, the heat insulating device has safe, non-toxic, environmental-friendly, acid-resist, alkali-resist, moisture-resistant and the like performances and is characterized by low and easily-acquired material, energy saving and long service life.

Description

technical field [0001] The invention relates to a heat insulation device, which belongs to the technical field of chemical experiment supplies. Background technique [0002] When laboratory experimenters use alcohol lamps, electric furnaces, etc. to heat glassware containing liquids, if the glassware directly contacts the electric furnace, the flame will concentrate on a certain place in the container for a long time, and eventually the glassware will burst. The traditional experimental operation is Place an asbestos mesh over the electric stove. The asbestos net is made of asbestos fibers sandwiched between two pieces of barbed wire, soaked in water and then dried. Asbestos fiber has the characteristics of acid and alkali resistance, heat insulation, insulation, fire prevention, heat resistance, and non-combustibility, and is a traditional heat insulation material. After use, the heat of the flame will spread to every corner of the container, and the glassware will not bu...

AI Technical Summary

Problems solved by technology

However, the asbestos mesh also has the following defects: 1. The asbestos mesh is not resistant to high temperature, and it will start to pulverize when it reaches above 500 degrees. short circuit

It is almost a disposable product; 2. Asbestos is easy to get wet, and it is easy to fall off after being exposed to water; 3. Asbestos fiber is harmful to the human body and stimulates the human respiratory system. It is a very small fiber that is almost invisible to the naked eye. These tiny fibers can float in the air for a long time after being released, and be inhaled into the human body. The inhaled asbestos fibers can accumulate in the human body for many years, causing lung diseases and posing a potential threat to the health of experimenters.

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