Title:
Y-TYPE FILTER, CITY DOMESTIC WATER SUPPLY SYSTEM, AND CIRCULATION HEATING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/129030
Kind Code:
A1
Abstract:
A Y-type filter, a city domestic water supply system, and a circulation heating system. The Y-type filter comprises a filter housing, a draining valve, and an annular cylindrical filter screen. A transparent observation window is provided on the entire or part of the filter housing, and a congestion condition of the filter screen can be directly observed by means of the observation window, so that the filter screen can be cleaned; the draining valve is provided at a drain outlet, and the filter can be cleaned as long as the draining valve is opened.
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Inventors:
QU XING (CN)
Application Number:
PCT/CN2018/123803
Publication Date:
July 04, 2019
Filing Date:
December 26, 2018
Export Citation:
Assignee:
BEIJING HUAJINHAO ENV WATER SUPPLY EQUIPMENT CO LTD (CN)
International Classes:
B01D35/02; B01D29/35; B01D29/66; B01D29/88; B01D35/30; C02F1/00; F24D3/02
Foreign References:
| CN207871691U | 2018-09-18 | |||
| CN108187397A | 2018-06-22 | |||
| CN208049492U | 2018-11-06 | |||
| CN203370381U | 2014-01-01 | |||
| CN206398895U | 2017-08-11 | |||
| CN2705224Y | 2005-06-22 | |||
| CN202052408U | 2011-11-30 | |||
| CN202263475U | 2012-06-06 | |||
| CN203874899U | 2014-10-15 | |||
| CN204816882U | 2015-12-02 | |||
| JP2011005419A | 2011-01-13 | |||
| JP2017042707A | 2017-03-02 |
Attorney, Agent or Firm:
BEIJING KEYI INTELLECTUAL PROPERTY FIRM (CN)
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