Anti-clogging circulating blowdown water seal system and circulating blowdown method

• Main Authors: GONG ZHENGHUA, XUE YALOU, LIU FENGYUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2024
• Subjects: DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; FIXED CONSTRUCTIONS; SEWERAGE; SINKS; WATER SUPPLY

The invention relates to the technical field of drainage structures, and discloses an anti-clogging circulating drainage water seal system and a circulating drainage method.According to the anti-clogging circulating drainage water seal system, sewage is introduced into a buffer tank, then a double-layer floating ball obtains buoyancy of step change according to the change of the liquid level in the buffer tank, a balance weight piston is driven to move in a piston cylinder, and circulating drainage is conducted; and the buoyancy does not change continuously but changes in a step manner, so that the liquid level in the buffer tank is prevented from floating up and down repeatedly in a small range at a specific liquid level like a liquid level controlled by a floating ball valve. In the drainage process, the liquid level in the buffer tank firstly rises to nearly fill the buffer tank, particulate matters in the sewage are precipitated to form supernate, then the lower-layer sewage containing a large number of p