3 results about "Feed pump" patented technology

The invention provides a hydrogen-peroxide high-efficiency utilization method and apparatus for desulphurization and denitration of low-temperature flue gas. According to the method, hydrogen peroxide is fed in the form of gas in the process of desulphurization and denitration of low-temperature flue gas via hydrogen peroxide. The apparatus comprises a hydrogen peroxide storage tank, a feed pump, a flue and an absorbing tower. The apparatus is characterized in that hydrogen peroxide is converted to a gaseous state after treatment by a device for feeding liquid hydrogen peroxide after direct heating and vaporization of liquid hydrogen peroxide, or a device for feeding hydrogen peroxide after bubbling of hot carrying gas in hydrogen peroxide, or a device for feeding hydrogen peroxide carried by hot carrying gas or a device for feeding atomized hydrogen peroxide carried by hot carrying gas; the gaseous hydrogen peroxide then enters the flue; and the gaseous hydrogen peroxide and hydroxyl radicals therein are used for desulphurization and denitration reactions. The method and apparatus provided by the invention changes a conventional liquid-gas mixed reaction into a gas-gas mixed reaction. Compared with liquid hydrogen peroxide, more hydroxyl radicals can be produced through decomposition in the process of vaporization of hydrogen peroxide, so the utilization rate of hydrogen peroxide and the removal rate of NOx are improved, and the usage amount of hydrogen peroxide is reduced.

The invention discloses a heat pump system of a sewage source. The heat pump system consists of a water source heat pump unit, an air-conditioning system and an outdoor sewage source system, wherein the outdoor sewage source system comprises a sewage pool, a plurality of groups of heat-exchange drain pipes, two sewage taking wells, two sewage feed pumps and two sewage drain pumps. Urban raw sewage serves as a cold and heat source of the heat pump system, can be up to the water temperature of about 12 DEG C in winter and is not high in water temperature in summer, so that the urban sewage is the very ideal cold and heat source of the water source heat pump unit, primary energy can be greatly saved, the exhaustion of harmful air can also be reduced, the operation cost is low, and the economic benefic is obvious.