Ash water recovery system for rail passenger car

Abstract

The invention provides an ash water recovery system for a rail passenger car. The ash water recovery system comprises an ash water tank, a filter, a water booster and an ultrafilter; a pipeline between a water outlet of the ash water tank and a water inlet of the filter is provided with a first check valve; a four-way connecting piece is arranged between the filter and the water booster, one end of the four-way connecting piece is connected with a water outlet of the filter, another end of the four-way connecting piece is connected with the water booster, a third end of the four-way connectingpiece is connected with a water inlet of the ultrafilter through a second check valve, and a fourth end of the four-way connecting piece is connected with a water outlet of the ultrafilter through athird check valve; a first pneumatic valve is arranged between the third check valve and the water outlet of the ultrafilter, a water outlet in the bottom of the ultrafilter is provided with a secondpneumatic valve, and a water outlet in the bottom of the filter is provided with a third pneumatic valve; and the ash water recovery system further comprises a first solenoid valve controlling the water booster, a second solenoid valve controlling the first pneumatic valve and the second pneumatic valve and a third solenoid valve controlling the third pneumatic valve. The ash water recovery systemfor the rail passenger car has the advantages that filtering and backwashing functions can be achieved simultaneously, and the use function of the ash water tank is greatly optimized.

Description

technical field [0001] The invention relates to a gray water recovery system, in particular to a gray water recovery system for rail passenger cars. Background technique [0002] Entering the 21st century, my country's railway industry has developed rapidly, and more and more people choose to travel by railway. However, with the problems of environmental pollution and water shortage, the issue of water recycling has been put on the agenda. [0003] Generally speaking, a large amount of water is used in the production of the chemical industry. Sewage recycling systems are very common. Chemical companies generally have large-capacity sewage pools to temporarily store the discharged sewage, and convert the sewage through chemical and physical means. After the reclaimed water meets the standard, it is then used in daily production activities. [0004] In the bathrooms of the common "Harmony" and other EMUs, there is the most basic water supply system in the EMU. The common ones...

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Problems solved by technology

[0007] Although this invention patent can realize the recycling of gray water, the water recovered by the gray water recovery system disclosed in this patent has not been sterilized, pre-filtered, and ultra-filtered, and the gray water tank and filter box have not been timely Therefore, the availability of water recovered by the gray water recovery system disclosed in this patent is low, and the service life of the recovery system is short

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