建筑排水水封特性及器具通氣性能實驗研究
[Abstract]:How to improve the drainage capacity of building drainage system is a hot issue in the field of building drainage, and it is also an urgent problem to be solved. Building drainage system is closely related to our life, directly related to our quality of life and health. With the continuous development of society, people's requirements for building drainage system are getting higher and higher. It is not only required that the building drainage system be able to discharge the sewage produced by people's daily life in time, but also that the building drainage system should have sufficient reliability and ensure the indoor environmental hygiene. Through the development and accumulated practical experience of the construction water supply and drainage industry in China over the years, it is found that there are still some problems in the field of building drainage in China, such as the lack of special experimental research, and the obvious shortage of the corresponding basic theory research, and so on. It is difficult to solve the problem of building drainage system in China. The sanitary and reliable performance of building drainage system is determined by water seal, and the reliability of water seal can be ensured from two aspects: water seal itself and ventilation system protection. The experimental equipment is designed specifically for water seal and ventilation mode of building drainage system. Firstly, the experimental conditions (dynamic pressure test condition and static pressure test condition) for water seal are put forward, secondly, according to the relevant norms issued by the current country, The experimental device is designed independently. Under the dynamic pressure experimental conditions, the actual drainage conditions may be simulated as much as possible, and the reinforced drainage conditions are used to test the ventilation performance of the building drainage apparatus, at the same time, the experimental study on the ventilation performance of the building drainage apparatus is also carried out. The flow resistance loss of air in ventilation pipe was measured. According to the experiment of water seal characteristics, the experiment design is carried out mainly from the water seal volume, the water seal ratio and the water seal height which affect the water seal characteristic, and the experimental results are verified by combining the relevant theories at home and abroad. This paper puts forward the theory of influencing the performance of water seal, obtains the influence of water seal volume, water seal ratio and water seal height on the performance of water seal and the weight relation, and puts forward some suggestions for improving the performance of water seal. The experiment on ventilation mode of drainage apparatus is carried out from two aspects: the diameter of ventilation pipe and the length of ventilation pipe. The ventilation pipe diameter is confirmed by drawing lessons from the relevant theories of drainage ventilation system at home and abroad. The length of the vent pipe and the selected ventilation mode will affect the ventilation efficiency of the drainage system and the resistance loss in the ventilation pipe, thus affecting the drainage capacity of the drainage system. The regulations of maximum allowable length and minimum allowable diameter of ventilation pipe in drainage system are proposed, and the corresponding technical data are provided. This experimental study is the basic research work in the field of building drainage, and has an active role in promoting the development of building drainage theory and technology.
【學位授予單位】:福州大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TU823
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