Unpowered rainwater purification irrigation system and irrigation method thereof

Abstract

The invention discloses an unpowered rainwater purification irrigation system. Confluence rainwater enters an earlier-stage rainwater tank through a water inlet, a first unpowered slow release deviceis arranged in the earlier-stage rainwater tank, the water outlet speed of the earlier-stage rainwater tank is controlled, and after the earlier-stage rainwater tank is filled with rainwater, the rainwater enters a rainwater settling tank through a communicating pipe; and the rainwater settling tank is provided with a second unpowered slow release device. Rainwater subjected to static settlement purification enters an irrigation box through the second unpowered slow release device, a floating ball valve is arranged in the irrigation box, and a floating lifting control pipe is arranged outsidethe irrigation box. According to the system, when precipitation and purification treatment is carried out on rainwater after rainfall is finished, no rainwater enters the rainwater settling tank and no rainwater flows out of the rainwater settling tank, free precipitation of rainwater is not influenced by any disturbance, and the treatment effect of rainwater quality is ensured. No adverse effectis caused to a subsequent irrigation pipe network.

Description

technical field [0001] The invention belongs to the field of rainwater purification and reuse for afforestation and irrigation, and in particular relates to a powerless rainwater purification irrigation system. Background technique [0002] At present, the traditional rainwater reuse green irrigation system generally uses electromechanical equipment such as water pumps and electric valves combined with electrical control to purify and reuse rainwater for irrigation. However, using electromechanical equipment for rainwater reuse irrigation, because of high operating costs, high quality requirements for operation and management personnel, complex operation and maintenance, high failure rate of electromechanical equipment and electrical control systems, and high repair and replacement costs, a large number of residential quarters and public buildings are installed. This type of rainwater reuse irrigation facilities are basically idle or cannot be used normally. [0003] In res...

AI Technical Summary

Problems solved by technology

However, there are still some problems in similar systems at present: (1) The precipitation process is used for water purification. Although this process is more effective for rainwater treatment, it is difficult to determine the core parameter of the precipitation process - the effective precipitation time, especially in the previous stage. The precipitation time of the effluent is short, and the rainwater purification effect cannot be guaranteed

(2) During the rainwater precipitation treatment, the rainwater enters and exits the rainwater tank at the same time, which will inevitably cause water flow disturbance, affect the free precipitation effect of rainwater, and easily cause adverse effects on subsequent irrigation pipes

When the rain stops for a period of time, when the greening really needs to be irrigated, most of the rainwater has been wasted, so the effective utilization rate of the actual rainwater is low.

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