The application principle of flue is required by the specification of flue wall thickness

We all need to know this way in detail, so that we can make good use of it and make it less cold in winter. Otherwise, we can't live at home, and we'll catch a cold from freezing. So we need to know what the specification requirements of flue wall thickness are and what the application principle of flue is. No matter what kind of heating method we use in winter, we should know this method in detail, so as to make good use of it and make it less cold in winter. Otherwise, we can't live at home, and we'll catch a cold from freezing. So we need to know what the standard requirements of flue wall thickness are and what the working principle of flue is. Now let's take a look at the relevant introduction.

Specification requirements for flue wall thickness

According to JG/ 194? 20 18 requires steel wire mesh cement mortar, and the wall thickness is not less than1.5cm. At present, only according to the standard of Guangdong 17J/T 9 10 can the full thickness be achieved economically and effectively, otherwise it will be expensive.

Machine-made flue is a kind of exhaust duct for residential kitchen and bathroom. Portland cement is the main raw material, with galvanized steel wire mesh in the middle, and it is molded by machine-made mold at one time. Magnesium oxychloride cement shall not be directly used as the main raw material, nor shall ceramsite or vitrified beads be used as aggregate. Compared with artificial cement prefabricated flue, it has the advantages of uniform wall thickness, smooth inner wall and strong vertical bearing capacity. However, its flexibility, impact resistance and fire resistance still need to be further improved and enhanced.

Application principle of flue

When the flue gas from the air inlet is discharged into the flue, it will meet the flue gas discharged upward from the lower floor. When two air streams meet, a vortex and an air curtain will be formed, which will hinder the upward movement of the lower flue gas. Once the fire check valve is blocked by oil pollution and cannot be opened, smoke will flee indoors. In order to overcome the technical problems of smoke crosstalk and odor, the solution is to use the dynamic and static pressure conversion principle of aerodynamics (Bernoulli theorem). The combined variable pressure fire-resistant flue developed by Jiangsu Zitai Institute of Architecture and Technology has a patented variable pressure check module, which is used for gas extraction and airflow acceleration in the flue, so that the flue gas can be converted from static pressure to dynamic pressure at a specific position.

The exhaust port of the kitchen or bathroom where the range hood is not turned on is in a negative pressure state. The principle of Bernoulli's theorem is used to form suction force, thus eliminating eddy current and air barrier and solving the phenomenon of crosstalk and odor in the smoke exhaust pipeline. The combined variable pressure fire-resistant flue passed the scientific and technological achievements appraisal of the Science and Technology Development Promotion Center of the Ministry of Construction on February 12, 2002. The evaluation conclusion is that this product can effectively solve the problems of gas vortex, gas curtain blockage, flue gas backflow and flue gas odor, meet the needs of residential construction, and has the functions of preventing flue gas cross-flow, backflow, fire resistance and fire prevention, reaching the leading level of similar products in China. This achievement was listed as the promotion project of scientific and technological achievements in the construction industry in 20 12.

From the introduction of this article, I mainly tell you what is the standard requirement of flue wall thickness, which has been written for you in the article. The requirements written above are all standard requirements, so when using this thing, you must follow the requirements in the article, otherwise there will be some particularly big troubles. In addition, I also tell you the application principle of flue.