建筑排水系统水封特性及其工程应用研究

发布时间：2018-02-07 14:39

本文关键词： 建筑排水系统水封性能排水能力蒸发作用工程应用　出处：《福州大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着我国社会经济的快速发展,高层建筑的大量兴建,人民生活水平的日趋提高,人们对住宅功能性、卫生性要求也越来越高。而建筑给水排水系统作为实现建筑物功能的重要组成部分也引起人们更多的关注。建筑排水水封作为建筑排水系统各功能枢纽,已成为建筑排水研究的热点。本课题对水封相关的产品和技术特点进行大量的市场调研,做了大量的数据测试,对建筑排水系统水封特性进行了较为完善的分析和研究,论文研究内容主要从建筑排水系统水封对系统排水能力的影响、建筑排水系统水封性能、建筑排水系统水封蒸发三方面入手进行研究,以试验为基础对实际工程中的水封装置若干问题进行分析讨论,并提出对现有水封关键性因素进一步优化的建议。建筑排水系统水封特性试验结果表明,排水管道内的压力波动与存水弯接入的横支管长度无关,与排水系统内的排放水量有关。排放水量越大,排水系统内压力波动越大,两者呈正相关关系。水封也制约着系统排水能力,存水弯内水封与排水流量之间相互影响。随着排水流量增加,管内压力发生波动,而水封可以对管内气压进行调节,防止管内气压进入室内。当压力波动达到一定程度时水封将击穿,此时排水流量即超过了排水系统允许的排水能力。同时是否设置通气系统也能直接影响着系统排水性能,合理设置的通气系统能减少排水系统内压力波动,进而有效地提高排水系统的通水能力。水封性能的影响因素主要有水封高度、水封比、水封容量。水封装置的构造制约了水封能达到最大高度,水封高度直接影响着水封装置对排水系统内压力波动的抵御能力。水封比则影响着水封装置的抵御压力波动的“二次屏障”,即影响抵御第一次压力波动后的剩余水封量。水封容量是一个综合影响因素,是水封高度和水封比等相结合的共同作用。水封蒸发量的主要影响因素有蒸发面积、温度、湿度等。水封蒸发面积越大,温度越高,湿度越小,蒸发越快。水封蒸发面积对水封蒸发损失的影响等效于水封比的影响,其他条件相同时,水封比越大,水封蒸发量越小。减少水封蒸发面积,主要形式有：增加水封比、减小水封进水口断面积。在实际生产生活中,水封加盖或密封均能有效的降低水封蒸发损失。本研究经过试验及相关理论分析,提出了解决既有建筑内水封问题若干行之有效的方法,主要可以从水封高度的补偿、水封水量的定时补充等来实现。
[Abstract]:With the rapid development of our country's social economy, the massive construction of high-rise buildings, the increasing improvement of people's living standard, people's function of housing, More and more attention has been paid to building water supply and drainage system as an important part of building function. It has become a hot spot in the study of building drainage. This subject has carried out a lot of market research on the characteristics of water seal related products and technology, done a lot of data tests, and carried on relatively perfect analysis and research on the characteristics of water seal of building drainage system. The main contents of this paper are as follows: the influence of water seal on the drainage capacity of building drainage system, the performance of water seal of building drainage system, and the evaporation of water seal of building drainage system. On the basis of test, some problems of water seal device in practical engineering are analyzed and discussed, and suggestions for further optimization of key factors of water seal are put forward. The test results of water seal characteristics of building drainage system show that, The pressure fluctuation in the drainage pipe has nothing to do with the length of the transverse branch pipe connected with the bend of the water storage, and it is related to the discharge water in the drainage system. The larger the discharge quantity, the greater the pressure fluctuation in the drainage system. The water seal also restricts the drainage capacity of the system and the interaction between the water seal and the drainage flow. With the increase of the drainage flow, the pressure in the pipe fluctuates, and the water seal can regulate the air pressure in the pipe. The water seal will break down when the pressure fluctuation reaches a certain level, and the drainage flow will exceed the drainage capacity allowed by the drainage system. At the same time, whether the ventilation system is installed can also directly affect the drainage performance of the system. The reasonable ventilation system can reduce the pressure fluctuation in the drainage system, and then effectively improve the water capacity of the drainage system. The main influencing factors of the water seal performance are the water seal height, the water seal ratio, and the water seal ratio. Water sealing capacity. The construction of the water seal device restricts the water seal ability to reach the maximum height. The water seal height directly affects the water seal device's resistance to the pressure fluctuation in the drainage system. The water seal ratio affects the "secondary barrier" of the water seal device to resist the pressure fluctuation, that is, the residual after resisting the first pressure fluctuation. Water sealing capacity is a comprehensive influence factor, It is the combination of water seal height and water seal ratio. The main influencing factors of water seal evaporation amount are evaporation area, temperature, humidity, etc. The larger the water seal evaporation area, the higher the temperature, the lower the humidity, The faster the evaporation. The effect of the water seal evaporation area on the water seal evaporation loss is equivalent to that of the water seal ratio. When the other conditions are the same, the larger the water seal ratio, the smaller the water seal evaporation volume. The main forms of reducing the water seal evaporation area are as follows: increasing the water seal ratio, In the actual production life, the water seal cap or seal can effectively reduce the evaporation loss of the water seal. Some effective methods to solve the problem of water seal in existing buildings are put forward, which can be mainly realized from the compensation of water seal height and the timing supplement of water sealing capacity.
【学位授予单位】：福州大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU823

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