绿建小讲堂③：雨水回收系统
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发布日期：2021-05-25 20:54

Q1 什么是雨水回用系统？

雨水回收利用系统，是将雨水根据需求进行收集后，对收集的雨水进行处理使其达到符合设计使用标准的系统。多数由弃流过滤系统、蓄水系统、净化系统组成。

The rainwater recycling system is a system that collects rainwater according to demand, and then processes the collected rainwater to meet the design and use standards. Most of them are composed of discarded flow filtration system, water storage system, and purification system.

Q2 雨水回用系统的具体领域是哪些？

雨水收集回用系统的应用，在年均降雨量400mm以上的地区具有较好的经济性，建筑物涵盖以下类型：市政公共道路、广场；公园、绿地；城市住宅区、学校；工业园区、工厂。

Q3 雨水回用系统的工艺流程有哪些？

初过滤装置 + 弃流装置 + 自动过滤器 + 蓄水池 + 净水机组 + 清水池

Primary filtration device + abandoning device + automatic filter + reservoir + water purification unit + clean pool.

1 雨水截污初过滤装置
Initial filtration device for rainwater interception
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雨水截污初过滤装置是专为防止汇流雨水中携带的部分固体杂物，进入后续净化工段而设计的一款雨水利用前处理产品。该装置结构简单、可靠，内置的杂物过滤装置能有效收集杂物，又易于清理，产品外部为高强度防腐玻璃钢，可直接埋地，对接相应管道即可使用，是后续净化工段安全可靠的伴侣。

The initial filtration device for rainwater interception is a rainwater pretreatment product designed to prevent part of the solid debris carried in the rainwater from entering the subsequent purification section. The device has a simple and reliable structure. The built-in debris filtering device can effectively collect debris and is easy to clean. The exterior of the product is high-strength anticorrosive FRP, which can be directly buried in the ground and can be used when connected to the corresponding pipeline. It is safe and reliable in the subsequent purification section. companion.

2 雨水弃流装置
Rainwater abandonment device
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浮力式雨水截流装置，无需电动机构，通过对浮力与重力平衡的精确设计，实现初雨弃流与后期较洁净雨水的收集。该装置对环境的适应性强，长期使用稳定、可靠，管理要求低，非常适应降雨的季节性和间歇性特征。弃流装置自有罐体结构，预留有进管、出管和排污管接口，外部管道仅需接入相应的管口，使用简单、方便。

The buoyant rainwater interception device does not need an electric mechanism. Through the precise design of the balance of buoyancy and gravity, it can realize the collection of the first rain and the discarded stream and the later clean rainwater. The device is highly adaptable to the environment, stable and reliable for long-term use, and has low management requirements. It is very adaptable to the seasonal and intermittent characteristics of rainfall. The abandoning device has its own tank structure, and reserves the inlet, outlet and sewage pipe interfaces. The external pipeline only needs to be connected to the corresponding nozzle, which is simple and convenient to use.

3 雨水自动过滤器
Automatic rainwater filter
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雨水自动过滤器是一种初级过滤产品，能够有效减少后端蓄水池内的沉积物，减少后续工序的清理工作。其出水澄清度较高，消毒后能够提供低等级中水用途，如绿化浇灌、道路喷洒、景观湖补水等。过滤器内部的特殊水流向设计，能够同步实现滤渣、清污与清水收集的功能，无需专门的清洗机构。产品外部为高强度防腐玻璃钢，可直接埋地对接相应管道即可，方便使用，运行可靠。

The rainwater automatic filter is a primary filtration product, which can effectively reduce the sediment in the back-end reservoir and reduce the cleaning work in the subsequent process. Its effluent has high clarity and can provide low-grade reclaimed water after disinfection, such as green irrigation, road spraying, landscape lake water replenishment, etc. The special water flow direction design inside the filter can realize the functions of filter residue, cleaning and water collection simultaneously, without the need for a special cleaning mechanism. The exterior of the product is high-strength anti-corrosion FRP, which can be directly buried in the ground and connected to the corresponding pipeline, which is convenient to use and reliable in operation.

4 海豚净化机组
Dolphin purification unit
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海豚净水机组是雨水系统实现优质、安全利用的核心模块，主要部件由康为海豚过滤器与紫外杀菌装置组成。

海豚过滤器是康为专有技术，在总结多年水处理技术基础上全新开发的一种高速高精度过滤器。海豚过滤器是以自感应滤料（滤料的外形神似海豚，得名：海豚滤料）为技术核心的专用过滤器。该过滤器滤速可达30~45m/h，滤后浊度可达到1NTU以下，使滤后出水澄清度、COD等指标完全达到各项杂用水的水质要求。并且滤罐的纳污能力高，易于反洗，避免传统砂滤罐常见的板结问题。滤层工作阻力小，无需配置高压水泵，大大减少了原水增压泵所需的功率，减少增压设备的投资和运行费用。

The dolphin water purification unit is the core module of the rainwater system to achieve high-quality and safe utilization. The main components are composed of the Kangwei dolphin filter and the ultraviolet sterilization device.

The dolphin filter is a high-speed and high-precision filter newly developed by Kangwei's proprietary technology and based on many years of water treatment technology. The dolphin filter is a special filter with self-induction filter material (the shape of the filter material is like a dolphin, named: dolphin filter material) as its core technology. The filter speed can reach 30~45m/h, and the turbidity after filtration can reach below 1NTU, so that the clarity and COD of the filtered effluent can fully meet the water quality requirements of various miscellaneous waters. In addition, the filter tank has a high dirt holding capacity, is easy to backwash, and avoids the common hardening problem of the traditional sand filter tank. The working resistance of the filter layer is small, and there is no need to configure a high-pressure water pump, which greatly reduces the power required by the raw water booster pump, and reduces the investment and operating costs of the booster equipment.

紫外杀菌装置将过滤后水中的大肠杆菌或其他致病菌杀灭，确保雨水利用的安全、健康。相对其他的杀菌消毒方式，紫外杀菌装置具有使用安全、管理方便的特点，是水处理领域最常见的杀菌消毒方式。

海豚净水机组的各个部件以最合理的布局整体组装，选用单位仅需提供合适的安置空间、进出排污三个管接口和电源即可使用。海豚净水机组的主材通常有不锈钢和碳钢防腐材质可选；在操作方式上，可选择手动或全自动过滤反洗的方式；紫外杀菌器也可选配清洗装置，给广大用户提供了多样化的选择。

The ultraviolet sterilization device kills E. coli or other pathogenic bacteria in the filtered water to ensure the safety and health of rainwater utilization. Compared with other sterilization methods, the ultraviolet sterilization device has the characteristics of safe use and convenient management, and it is the most common sterilization method in the water treatment field.

The various components of the dolphin water purification unit are assembled in the most reasonable layout. The selection unit only needs to provide a suitable placement space, three pipe connections for in and out of the sewage and power supply for use. The main materials of the dolphin water purifier are usually stainless steel and carbon steel anti-corrosion materials; in the operation mode, manual or automatic filter backwashing can be selected; the UV sterilizer can also be equipped with a cleaning device, which provides a wide range of users Diversified choices.

5 蜂窝框架组合式蓄水池
Honeycomb frame combined reservoir
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蜂窝框架组合式蓄水池，充分利用了玻璃钢材料轻质高强、耐酸耐碱的优异性能，经高温高压一次成型的标准板块组装而成。水池内部采用框架式支撑，每个点上受力均匀，能够将上部的荷载有效分散，从而使水池的抗压能力大幅提高。有别于其他组合式水池，康为蜂窝框架池的内部结构保留了进出通道，避免了其他组合水池组装完成后不能清理、不能检修、不能安置提升泵的弊端。

The honeycomb frame combined reservoir makes full use of the light weight, high strength, acid and alkali resistance of glass fiber reinforced plastic materials, and is assembled from standard plates formed by high temperature and high pressure at one time. The interior of the pool adopts frame-type support, and the force on each point is even, which can effectively disperse the load on the upper part, thereby greatly improving the pressure resistance of the pool. Different from other combined pools, Kangwei retains access to the internal structure of the honeycomb frame pool, which avoids the disadvantages of other combined pools that cannot be cleaned, repaired, and lift pumps cannot be installed after assembly.