Automatic dosing device for downspout coagulation reagent for treating roof initial rainwater

Abstract

The invention discloses an automatic dosing device for a downspout coagulation reagent for treating roof initial rainwater. The automatic dosing device comprises downspouts, as well as a dosing box and an evaporating chamber which are connected to the downspouts, wherein the dosing device comprises a movable water tank connected with an upper connecting hose by a water-receiving inclined tube; the movable water tank is supported by a medicine storage capsule return spring located in a cavity in a medicine storage rubber capsule below the movable water tank; the evaporating chamber comprises a rubber piston arranged in an inner cavity of the evaporating chamber, a connecting rod connected to the lower part of the evaporating chamber and an evaporation chamber return spring; a water pressure stop valve linked with the connecting rod and the evaporating chamber return spring is arranged below the evaporating chamber; the movable water tank is communicated with the evaporating chamber and the downspouts; the medicine storage rubber capsule is communicated with a dosing pipe to the downspout by a connecting pipe. The device has the advantages of simple structure, convenience in processing and manufacturing, autoregulation property, convenience in changing of a coagulation reagent and good treatment effects. The device is of great practical significance to control initial rainwater, improve water quality of utilized rainwater and realize recycling of rainwater resources.

Description

technical field [0001] The invention relates to a device which utilizes the gravitational potential energy of rainwater in a downpipe to realize initial rainwater identification and automatic dosing of coagulation agents. Background technique [0002] In the process of urban construction and development, the utilization of rainwater resources has been paid more and more attention. Efficient rainwater collection and utilization can not only alleviate urban waterlogging, but also significantly alleviate the pressure of water shortage in urban development, and can also effectively control non-point source pollution caused by precipitation erosion. Rainwater resource utilization has become one of the main contents of sponge city construction. [0003] Studies have shown that rainwater, as a water resource with relatively good water quality, can be used as urban miscellaneous water for road irrigation, greening and toilet flushing after preliminary treatment. Based on the chara...

AI Technical Summary

Problems solved by technology

Manually controlling the waste flow facilities needs to be manually opened during rainfall, which requires a lot of human resource support, and is only used for node control of large pipelines. At the same time, there may also be problems such as untimely and unreliable valve plate closures, resulting in all initial pollution of rainwater directly. Emissions and other issues; automatic switching is to close the sewage valve through the automatic control equipment when the rainfall starts to 15-20 minutes, and open the clean water valve at the same time to switch the later clean rainwater to the rainwater pipeline or the direct drainage system. The automatic switching system works reliably and saves manpower but costs At the same time, due to the poor working environment, the failure of the automatic control system occurs frequently

[0008] Examples of applications related to this application are as follows: application number: CN201410210848.7, and the name of the invention is an initial rainwater disposal system on a downpipe. The material used in this invention is steel, which is prone to rust and pollutes rainwater. The construction cost is relatively high, and the operation is complicated at the same time, and it does not have the ability to treat initial rainwater pollutants.

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