Title:
RAW WATER HEATING AND HARD WATER REMOVAL TREATMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/120926
Kind Code:
A1
Abstract:
A raw water heating and hard water removal treatment device, comprising coarse filtration and activated carbon filtration, wherein raw water is pressurized and pumped out by means of a water pump, and passes through an injector to mixed with a gravel abrasive, or the raw water is mixed with the gravel abrasive and then passes through the water pump so as to set the flow rate, and is thereafter inputted into a heating side and final-stage heater of a multi-stage vertical or horizontal heat exchanger (1), and the raw water is heated to a set temperature from an initial room temperature. The foregoing process causes temporary and permanently hard components in the raw water to undergo a decomposition reaction under heat, and produce calcium carbonate precipitates and magnesium carbonate precipitates. A gravel abrasive is added to the raw water, so that the gravel abrasive in the water rubs against limescale on pipe walls of the vertical heat exchanger (1), thereby rubbing off the limescale and keeping the pipe walls clean. According to the apparatus, a cooling side of the multi-stage vertical or horizontal heat exchanger (1) reduces the water temperature to a set temperature, and boiled water the temporary and permanently hard components of which are removed is obtained by means of filtration; the utilization rate of raw water is high, there is no need for the use of drugs, energy is conserved, discharge is reduced, and the problems of scaling on the heat exchange surface of the heat exchanger, low thermal efficiency, high power consumption, and environment pollution are resolved.
Inventors:
XU BAOAN (CN)
Application Number:
PCT/CN2020/137841
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:
C02F5/00; A47J31/54; C02F9/10
Foreign References:
| CN111110045A | 2020-05-08 | |||
| CN108416410A | 2018-08-17 | |||
| CN103979640A | 2014-08-13 | |||
| CN207468306U | 2018-06-08 | |||
| CN102583861A | 2012-07-18 | |||
| US20120000434A1 | 2012-01-05 |
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: "Principle and technology of water-saving treatment", pages: 78 - 83, 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
Download PDF: