Patent WO-2021262028-A1 (WO)
Inventor: MALIKOV NARGIZ GABBASOVICH
IPC: C02F1/20
Filed: 2021-04-01
Abstract: The invention relates to the field of thermal power engineering and can be used in heating systems to remove corrosive gases from the feedwater of steam boilers and hot water boilers and also from makeup water for heat supply networks. A modular deaeration system comprises a main deaeration unit based on a centrifugal vortex deaerator connected by pipes to two droplet dispersers in communication with the cavity of a droplet disperser tank having a flash steam outlet channel for flash steam from the centrifugal vortex deaerator, the system further comprising a unit of heat exchangers, and/or a flash steam cooling unit, and/or a flash steam cooling unit and a gas separation unit, and/or a flash steam cooling unit, a gas separation unit and a vacuum generating unit comprising an ejector and a circulating pump, as well as a feed pump, a pump control unit, and a system control unit, which can be selectively configured as modules with modifications depending on the operating mode of the system, wherein an inlet of the centrifugal vortex deaerator is connected to a deaerated water supply line either directly, with the water being heated to saturation temperature at the inlet, or via a heat exchanger for heating water to be deaerated, to which a heating agent is fed, deaerated water is delivered to the consumer directly from the droplet disperser tank or via a heat exchanger for cooling deaerated water, and the flash steam outlet channel opens freely into the atmosphere or is connected to a flash steam cooling unit, to which water to be deaerated is fed as a coolant, wherein each module is a functionally and structurally independent unit arranged in the vicinity of the droplet disperser tank. In specific embodiments, the modular deaeration system can be configured: to comprise a module containing a main deaeration unit, and a unit of heat exchangers including a heater for water to be deaerated and a cooler for deaerated water; to comprise a module containing a main deaeration unit, and a flash steam cooling unit; to comprise a module containing a main deaeration unit, a flash steam cooling unit, and a unit of heat exchangers including a heater for water to be deaerated and a cooler for deaerated water; to comprise a module containing a main deaeration unit, a flash steam cooling unit, a gas separation unit, and a heat exchanger for cooling deaerated water; to comprise a module containing a main deaeration unit, a flash steam cooling unit, a gas separation unit, a unit of heat exchangers including a heater for water to be deaerated and a cooler for deaerated water; to comprise a module containing a main deaeration unit, a flash steam cooling unit, a gas separation unit, a heat exchanger for heating water to be deaerated, and a vacuum generating unit comprising an ejector and a circulating pump. Each unit of the modular deaeration system can have its own set of cabling, shut-off and control valves, and temperature and pressure sensors and regulators. The proposed modular deaeration unit makes it possible to create a standardized and economical deaeration system with improved manufacturability as a result of the unit-based design of the modules, the configuration of which is determined by the particular functions and operating modes of the system. Furthermore, the use of standardized modules makes it possible to simplify the installation of equipment and the subsequent operation of the deaeration system.