通气管连接位置及三通对双立管系统通水性能的影响研究
发布时间：2018-11-21 07:08
【摘要】：本文研究的是普通双立管系统,实验测试采用铸铁管材及配件,通过变换H管位置、改变不同的排水三通及底部弯头进行试验,并通过试验结果进行分析比较后,得出不同组合时各自的排水能力并总结出不同通气管连接位置和排水三通及底部弯头对普通双立管系统排水能力的影响。本试验用60米排水试验装置作为研究对象,采用定常流法从最高层横支管开始施加流量,以0.5L/s为梯度增加,每层的最大放水流量为2.5L/s。通水能力为施加的累计流量值,本次试验通过设定每层放水流量来自动控制相应楼层进水,本文主要进行了以下几个方面的试验研究:1.每层通气管都紧挨三通上部连接时,分别测试装有90度弯头加100×150变径和90度大曲率变径两种弯头的T三通及旋流三通的普通铸铁双立管系统的最大通水能力。并对测试结果进行对比分析,测试结果表明,T三通与90度弯头加100×150变径接头的组合最大通水流量为7L/s,其他组合最大通水流量均为7.5L/s。2.每层通气管都与排水管在相邻三通中部连接时,分别测试装有90度弯头加100×150变径接头和90度大曲率变径两种弯头的T三通及旋流三通的普通铸铁双立管系统的最大通水能力,并对测试结果进行对比分析,测试结果表明,T三通与90度弯头加100×150变径接头的组合最大通水流量为7L/s,旋流三通加大曲率变径弯头的组合最大通水流量为6.5L/s,其他组合最大通水流量均为7.5L/s。3.每层通气管都紧挨三通下部连接时,分别测试装有90度弯头加100×150变径接头和90度大曲率变径两种弯头的T三通及旋流三通普通铸铁双立管系统的最大通水能力。并对测试结果进行对比分析,测试结果表明,通气管紧挨三通下部连接时效果显著,其中旋流三通与大曲率底部弯头组合的最大通水能力为11L/s,旋流三通与90度弯头加100×150变径组合最大通水能力为10L/s,当三通变换为T三通时,与大曲率变径弯头组合的最大通水流量为9L/s,与90度弯头加100×150变径接头组合对应最大通水流量分别为8.5L/s。
[Abstract]:In this paper, the common double riser system is studied. Cast iron pipe and fittings are used in the experiment test. By changing the position of H pipe, different drains and bottom elbows are changed, and the test results are analyzed and compared. The drainage capacity of different combinations is obtained, and the influence of different connection position of ventilation pipe, drainage trunnion and bottom elbow on drainage capacity of common double riser system is summarized. In this experiment, 60 meters drainage test equipment was used as the research object. The flow rate was applied from the top horizontal branch pipe by the steady flow method, and the maximum discharge rate of each layer was 2.5 L / s, with 0.5L/s as the gradient. The capacity of water flow is the value of accumulative flow applied. This experiment automatically controls the influent of the corresponding floor by setting the discharge rate of each layer. This paper mainly carried out the following aspects of the experimental research: 1. When each layer of ventilation pipe is connected closely to the upper part of the three-way, the maximum water capacity of the T-trundle and the ordinary cast iron double-way riser system with 90 degree elbow plus 100 脳 150 diameter and 90 degree big curvature variable diameter respectively is tested. The test results show that the combined maximum water flux is 7L / s and the maximum water flux of other combinations is 7.5L / s 路s ~ (2) for T trunking and 90 degree bend plus 100 脳 150 diameters. When each layer of ventilation pipe is connected with the drain pipe in the middle of the adjacent three way, the maximum water capacity of the ordinary cast iron double riser system with 90 degree bends and 100 脳 150 diameters and 90 degree large curvature diameters is tested, respectively. The test results show that the combined maximum water flux of T tee and 90 degree bend plus 100 脳 150 diameters is 7L / s, and the combined maximum water flux of swirl tri-way and curvature variable-diameter bend is 6.5 L / s. The maximum water flux of the other combinations was 7.5 L / s. 3. When each layer of ventilation pipe is connected closely to the lower part of the three-way, the maximum water capacity of the T-trundle and swirling three-way common cast iron double riser system with 90 degree elbow and 100 脳 150 diameter joint and 90 degree big curvature variable diameter joint are tested respectively. The test results show that the effect of the ventilation tube is remarkable when it is connected closely to the lower part of the three-way, in which the maximum water transfer capacity of the combination of the swirl three-way and the bottom bend with large curvature is 11L / s. The maximum water flow capacity is 10L / s for the combination of swirl three-way and 90-degree bend plus 100 脳 150 variable diameter, and 9L / s for the combination with large curvature bend when the three-way is converted to T three-way. The maximum water flux corresponding to the combination of 90 degree bend and 100 脳 150 variable diameter joint is 8.5 L / s.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU823
本文编号：2346268
[Abstract]:In this paper, the common double riser system is studied. Cast iron pipe and fittings are used in the experiment test. By changing the position of H pipe, different drains and bottom elbows are changed, and the test results are analyzed and compared. The drainage capacity of different combinations is obtained, and the influence of different connection position of ventilation pipe, drainage trunnion and bottom elbow on drainage capacity of common double riser system is summarized. In this experiment, 60 meters drainage test equipment was used as the research object. The flow rate was applied from the top horizontal branch pipe by the steady flow method, and the maximum discharge rate of each layer was 2.5 L / s, with 0.5L/s as the gradient. The capacity of water flow is the value of accumulative flow applied. This experiment automatically controls the influent of the corresponding floor by setting the discharge rate of each layer. This paper mainly carried out the following aspects of the experimental research: 1. When each layer of ventilation pipe is connected closely to the upper part of the three-way, the maximum water capacity of the T-trundle and the ordinary cast iron double-way riser system with 90 degree elbow plus 100 脳 150 diameter and 90 degree big curvature variable diameter respectively is tested. The test results show that the combined maximum water flux is 7L / s and the maximum water flux of other combinations is 7.5L / s 路s ~ (2) for T trunking and 90 degree bend plus 100 脳 150 diameters. When each layer of ventilation pipe is connected with the drain pipe in the middle of the adjacent three way, the maximum water capacity of the ordinary cast iron double riser system with 90 degree bends and 100 脳 150 diameters and 90 degree large curvature diameters is tested, respectively. The test results show that the combined maximum water flux of T tee and 90 degree bend plus 100 脳 150 diameters is 7L / s, and the combined maximum water flux of swirl tri-way and curvature variable-diameter bend is 6.5 L / s. The maximum water flux of the other combinations was 7.5 L / s. 3. When each layer of ventilation pipe is connected closely to the lower part of the three-way, the maximum water capacity of the T-trundle and swirling three-way common cast iron double riser system with 90 degree elbow and 100 脳 150 diameter joint and 90 degree big curvature variable diameter joint are tested respectively. The test results show that the effect of the ventilation tube is remarkable when it is connected closely to the lower part of the three-way, in which the maximum water transfer capacity of the combination of the swirl three-way and the bottom bend with large curvature is 11L / s. The maximum water flow capacity is 10L / s for the combination of swirl three-way and 90-degree bend plus 100 脳 150 variable diameter, and 9L / s for the combination with large curvature bend when the three-way is converted to T three-way. The maximum water flux corresponding to the combination of 90 degree bend and 100 脳 150 variable diameter joint is 8.5 L / s.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU823
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