Device for automatically utilizing secondary water

Abstract

The invention relates to a method for automatically utilizing secondary water and an automatic switching device thereof. The implementation and use of the prior art has a higher cost. The method is that a primary water source is led in a pipeline between a secondary water tank and a water outlet; and the automatic switching device controls the water in a water applicator to come from the secondary water tank or the primary water source. The device for realizing the method comprises a mechanical automatic switching valve, a pipeline expansion tank and a pressure maintaining valve, wherein, a primary water inlet of the mechanical automatic switching valve is communicated with the primary water source through the pressure maintaining valve; a secondary water inlet of the mechanical automaticswitching valve is communicated with one end of the pipeline expansion tank; the other end of the pipeline expansion tank is communicated with the secondary water tank; a water outlet of the mechanical automatic switching valve is communicated with the water applicator through a water outlet pipeline. The method of the invention solves the problem that the primary water can be automatically switched and used when the secondary water is not enough. The device of the invention has the advantages of simple and convenient implementation and use, low cost, favorable promotion and application and no need for external power source.

Description

technical field [0001] The invention belongs to the technical field of water utilization and relates to an automatic switching device for secondary water utilization. Background technique [0002] According to statistics, more than half of the more than 600 cities in the country are short of water to varying degrees, and due to insufficient supply of surface water, massive exploitation of groundwater has caused a sharp drop in groundwater levels, resulting in large areas of groundwater funnels and land subsidence, which is becoming more and more serious. The annual economic loss caused by water shortage is about 200 billion yuan. The lack of water limits the development of cities and the improvement of people's living standards. It is urgent for the whole society to save water resources. [0003] If the secondary water after the primary water (tap water) is used is collected and reused, the primary water will be saved in large quantities, thereby achieving the purpose of s...

AI Technical Summary

Problems solved by technology

This problem brings inconvenience to the user's secondary water utilization and makes it difficult to promote the existing secondary water utilization technology.

At the same time, in the existing technology of automatic collection and utilization of secondary water, the driving source of the automatic device often needs other power sources other than the system water pressure energy, which will make the system complicated and require other energy consumption, resulting in the implementation and use of The cost is higher, which increases the difficulty of promotion and application

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