三种典型结构地漏的本体性能分析及改进措施

Body Performance Analysis and Improvement Measures of Three Types of Typical Structure Floor Drains

通过地漏综合测试机测试三种结构地漏(水封式、机械密封式与混合密封式)的本体性能,并参考《地漏》(GB/T 27710—2011),分析地漏性能相关测试指标。结果表明,三种地漏防返溢性能测试结果都为溢水,向上溢水的时间都在1s左右,与《地漏》(GB/T 27710—2011)要求保持(30±2)min的规定相距甚远;三种地漏的排水流量和自清能力都符合规范要求,建议排水流量指标应该与自清能力指标建立相应的联系,共同评价地漏性能;水封式地漏和混合密封式地漏的水封损失都非常小,完全满足20 mm的水封剩余深度要求,具有非常良好的水封稳定性。

The performance of three types of floor drains （trap seal, mechanical seal and blend seal） were tested using the integrated testing machine of floor drain, and with reference to the Floor Drain （GB/T 27710 -2011 ）, the related indexes for testing the performance of floor drain were ana- lyzed. The results showed that three types of floor drains were all observed overflowing, and the overflow- ing time was 1 s, which was far away from the provision of （30 ± 2） rain. The discharge flow rate and self-cleaning capacity of the three types of floor drains all met the requirements of the standard. It was recommended that the corresponding relation between the discharge flow rate and self-cleaning capacity should be built to evaluate floor drain performance. The water loss of trap seal floor drain and blend seal floor drain was both very small, fully metting the requirement of seal residual depth of 20 ram, with ex- cellent trap seal stability.