Waste heat and wastewater recovery device

Abstract

The invention discloses a waste heat and wastewater recovery device comprising a heat recovery device and a wastewater recovery device. The heat recovery device is composed of a steam buffer box, a bypass pipe, a heat exchanger and an isolation valve. An intermission draining pipeline, a continuous draining pipeline and a water level indicator sewage draining pipeline are sequentially installed atthe upper end of the steam buffer box, and first valves are installed on joints of the intermission draining pipeline, the continuous draining pipeline as well as the water level indicator sewage draining pipeline and the steam buffer box correspondingly. The bypass pipe is installed at the bottom left corner of the steam buffer box. The heat exchanger is arranged in the steam buffer box, and a sewage draining pipeline communicates with the lower end of the heat exchanger. The isolation valve is installed on the joint of the sewage draining pipeline and the waste water recovery device. The wastewater recovery device is composed of a wastewater tank, an overflow pipe, an overflow sealed pipe, a cooling water inlet and a cooling water outlet. According to the waste heat and wastewater recovery device, buffer recovery can be conducted on steam, wastewater and heat are fully utilized, a protection mechanism is designed in the waste heat and wastewater recovery device, automatic treatmentcan be achieved under the circumstances of too high pressure and insufficient space, and safety of the treatment device is improved.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery from waste water, in particular to a waste heat and waste water recovery device. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy. The original meaning of the pot refers to the water container heated on the fire, and the furnace refers to the place where fuel is burned. The boiler includes two parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power plant, or converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which ar...

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Problems solved by technology

[0003] However, the existing boiler equipment has the following problems in the way of steam treatment: (1) The steam of the existing boiler equipment is exhausted through the expansion vessel to release the pressure and reduce the temperature, and the heat and waste water are not effectively recovered and recovered. Utilization, sometimes in order to reduce the discharge temperature of waste water, cold water cooling treatment is also performed on the drainage pit, which causes waste; (2) the existing equipment for steam treatment of boiler equipment has complex structure and high cost

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