Title:
DEVICE FOR PRODUCING PURE PLAIN BOILED DRINKING WATER BY HEATING AND REMOVING HARD SUBSTANCES FROM RAW WATER AND WITHOUT WASTEWATER DISCHARGE
Document Type and Number:
WIPO Patent Application WO/2022/120927
Kind Code:
A1
Abstract:
A device for producing pure plain boiled drinking water by heating and removing hard substances from raw water and without wastewater discharge. A production process comprises: rough filtration and activated carbon filtration, after pressurization by using a water pump, pumping raw water out, mixing same with sand abrasives, then feeding same into a heating side of a multi-stage vertical or horizontal heat exchanger and a final-stage heater, and heating the raw water to a set temperature. Temporarily hard and perpetually hard substances in the raw water are reacted and decomposed by heating to generate calcium carbonate precipitates and magnesium carbonate precipitates. The sand abrasives are added into the raw water, such that the sand abrasives in the water and scale on a tube wall of the vertical heat exchanger are rubbed to keep the tube wall clean. The water temperature is lowered to an appropriate set temperature by means of a cooling side of the multi-stage vertical or horizontal heat exchanger of the device, and plain boiled water from which the temporarily hard and perpetually hard substances are removed is obtained by means of filtration. Plain boiled water meeting different indicator requirements can be obtained by means of exhausting, multi-stage filtration and reverse osmosis. The device has a high utilization rate of raw water, drugs are not needed to be used in same, same is energy saving and has reduced emissions, and the problems of scaling on the heat exchange surface of the heat exchanger, a low thermal efficiency, large energy consumption, and environmental pollution are solved.
Inventors:
XU BAOAN (CN)
Application Number:
PCT/CN2020/137842
Publication Date:
June 16, 2022
Filing Date:
December 20, 2020
Export Citation:
Assignee:
ZIBO ENVIRONMENTAL PROTECTION TECH CO LTD (CN)
XU BAOAN (CN)
XU BAOAN (CN)
International Classes:
A47J31/54; C02F9/08
Foreign References:
| CN111110045A | 2020-05-08 | |||
| CN108416410A | 2018-08-17 | |||
| CN103256832A | 2013-08-21 | |||
| CN205917107U | 2017-02-01 | |||
| CN111531472A | 2020-08-14 | |||
| US20160051908A1 | 2016-02-25 |
Other References:
"Craft Beer Brewing Technology", 31 May 2019, CHINA SCIENCE AND INDUSTRY PUBLISHING NORTH, CN, ISBN: 978-7-5184-2279-1, article NIE, CONG, pages: 81 - 82, XP009538156
"Heat Exchanger Design Handbook", 31 January 2004, SINOPEC PRESS, CN, ISBN: 7-80164-445-X, article KUFAN, T. : "14.6 Chemical Cleaning", pages: 330 - 335, XP009538157
"Heat Exchanger Design Handbook", 31 January 2004, SINOPEC PRESS, CN, ISBN: 7-80164-445-X, article KUFAN, T. : "14.6 Chemical Cleaning", pages: 330 - 335, XP009538157
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