Secondary water supply water tank with dead end filtration and self-cleaning functions and secondary water supply method

Abstract

The invention discloses a secondary water supply water tank with dead end filtration and self-cleaning functions and a secondary water supply method. The water tank comprises a water tank body and ischaracterized in that a baffle is vertically arranged in the water tank body, an overflow channel is formed between the top end of the baffle and the top wall of the water tank body, the baffle divides the water tank body from front to back into a first water tank and a second water tank, the first water tank is connected with a municipal water pipeline, a water inlet valve is arranged on the municipal water pipeline, a filtering device is arranged in the first water tank, water enters from the side surface of the filtering device, is filtered and flows out from the bottom, the filtering device communicates with the second water tank through a bottom connecting pipeline, a blow-off pipeline is arranged at the bottom end of the first water tank, and a liquid level detection mechanism for controlling the opening and closing of a water inlet valve of the first water tank is arranged in the second water tank. The secondary water supply water tank has the advantages that municipal tap wateris subjected to primary sedimentation, then is subjected to dead end filtration, secondary pollutants of water supply are removed, the filtering device can be automatically cleaned, and normal watersupply for households is guaranteed while self cleaning is carried out.

Description

technical field [0001] The invention relates to the field of secondary water supply in urban and rural areas, in particular to a secondary water supply water tank and method with full volume filtering and self-cleaning functions. Background technique [0002] The safety of drinking water is closely related to the life and health of the people and the sustainable development of the economy and society. It is an important symbol of the development level of modern cities and the quality of life of urban and rural residents. The tap water treated by the water plant is transported to each household for secondary water supply through a huge municipal pipeline system. Nowadays, more and more communities have installed water tanks underground to store tap water, and then transport it to the households through booster pumps. Under normal circumstances, the tap water treated by the water plant can generally meet the national drinking water hygiene standards, but the huge underground p...

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Problems solved by technology

On the other hand, water supply equipment such as water tanks and pumps are often prone to pollution problems due to poor management or untimely maintenance during secondary water supply, which affects the safety of domestic water.

[0003] Moreover, the pollution problem of the secondary water supply system is universal, frequent and uncertain.

Due to the continuous expansion of the central urban area, the reconstruction of old pipes requires a large amount of work and is difficult to construct. The water supply system is greatly disturbed by operations such as water stoppage and pipe connection. The problem of "secondary pollution" has not been fundamentally solved, and there is still a gap between the quality of urban tap water entering households and people's living needs

[0004] In addition, when the water storage tank is regularly maintained and cleaned, there are also some problems: on the one hand, the existing water tank cleaning work is basically done manually, the work space is narrow, and the cleaning task is heavy; on the other hand, the secondary water supply system is damaged during cleaning. Increased disturbance, leading to periodic or sudden water supply pollution, seriously affecting the water supply quality of regional users

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