Title:
COMPOSITE FILTER ELEMENT ASSEMBLY AND WATER PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/085695
Kind Code:
A1
Abstract:
A composite filter element assembly and a water purification system. The composite filter element assembly comprises a filter housing (1) and a composite filter element provided in the filter housing (1). The filter housing (1) has a raw water inlet, a preliminarily-filtered water outlet (111b), a pressurized water inlet (122), a purified water outlet, and a waste water outlet. The composite filter element comprises a front filter element (2), a membrane filter element (3), and a rear filter element (4). The front filter element (2) and the membrane filter element (3) are installed in order from the outside to the inside and are spaced apart from each other. The rear filter element (4) is connected to the membrane filter element (3) and located downstream of the membrane filter element (3). The preliminarily-filtered water outlet (111b) is in communication with a water outlet end of the front filter element (2). The pressurized water inlet (122) is in communication with a water inlet end of the membrane filter element (3). The water outlet end of the front filter element (2) is near to the water inlet end of the membrane filter element (3). The preliminarily-filtered water outlet (111b) is an annular opening provided around the pressurized water inlet (122).
Inventors:
ZHANG XINGZHI (CN)
CAI XUEGANG (CN)
CAI XUEGANG (CN)
Application Number:
PCT/CN2018/107583
Publication Date:
May 09, 2019
Filing Date:
September 26, 2018
Export Citation:
Assignee:
FOSHAN SHUNDE MIDEA WATER DISPENSER MFG CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
B01D36/00; C02F9/02
Foreign References:
| CN207401250U | 2018-05-25 | |||
| CN207498155U | 2018-06-15 | |||
| CN207401362U | 2018-05-25 | |||
| CN104524861A | 2015-04-22 | |||
| CN205528054U | 2016-08-31 | |||
| KR20050022694A | 2005-03-08 |
Other References:
See also references of EP 3549653A4
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF:
Previous Patent: TWISTED GLASS PRODUCT AND MANUFACTURING METHOD THEREOF
Next Patent: TRACK MECHANISM AND WASHING MACHINE PROVIDED WITH SAME
Next Patent: TRACK MECHANISM AND WASHING MACHINE PROVIDED WITH SAME