An energy-saving and environment-friendly waste heat utilization device

Abstract

The invention relates to the technical field of waste heat utilization accessory devices, in particular to an energy saving and environment protecting waste heat utilization device. The energy savingand environment protecting waste heat utilization device can fully recycle heat in waste gas, the effective utilizing rate on heat in the waste gas is increased, energy is saved, and practicability isimproved; impurities in the waste gas can be treated, and pollution to the environment is reduced; meanwhile, the interior of a warm water tank can be conveniently cleaned, and the using reliabilityis improved; a boiler, an air duct and a draught fan are included; the boiler comprises a water cavity in the top and a combustion cavity in the bottom; a first water outflow pipe is arranged at the left end of the boiler; a water storing tank, a hot water tank, a spiral heating pipe, a water pump, a controller, a first water inflow pipe, a first electromagnetic valve, a second electromagnetic valve, a desulfurization tower, a spraying pump, a spraying device, a first filter screen, the warm water tank, a circulating water tank and a heating coil pipe are further included; a spraying cavity and a liquid storing cavity are formed in the desulfurization tower; and the top end and the right end of the warm water tank are provided with a second water inflow pipe and a second water outflow pipecorrespondingly.

Description

technical field [0001] The invention relates to the technical field of waste heat utilization attachments, in particular to an energy-saving and environment-friendly waste heat utilization device. Background technique [0002] As we all know, a boiler is a device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be used by steam power devices. Convert it into mechanical energy, or convert the mechanical energy into electrical energy through a generator, and generate flue gas with a large amount of heat in the process of fuel combustion. The waste heat utilization device is a kind of heat recovery and reuse , so as to save energy auxiliary devices, which have been widely used in industrial production, power generation, thermal heating and other fields; existing waste heat utilizat...

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Problems solved by technology

[0002] As we all know, a boiler is a device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be used by steam power devices. Convert it into mechanical energy, or convert the mechanical energy into electrical energy through a generator, and generate flue gas with a large amount of heat in the process of fuel combustion. The waste heat utilization device is a kind of heat recovery and reuse , so as to save energy auxiliary devices, which have been widely used in industrial production, power generation, thermal heating and other fields; existing waste heat utilization devices include boilers, air pipes, fans and warm water tanks, boilers include water chambers on the top and the combustion chamber at the bottom, and the top and left ends of the boiler are respectively provided with water inlet pipes and outlet pipes, both of which are connected with the water chamber, and the left end of the air pipe extends from the right end of the boiler to the combustion chamber, and the air pipe The right end of the fan is connected to the input end of the fan, and the top output end of the fan is provided with an exhaust pipe. The top of the exhaust pipe passes through the warm water tank from the bottom of the warm water tank to the top of the warm water tank. There are water adding pipes and drain pipes, and a drain valve is installed at the drain pipe; when the existing waste heat utilization device is used, the exhaust gas generated by combustion in the combustion chamber enters the exhaust pipe through the air pipe under the action of the fan, and relies on the exhaust pipe. The heat of the exhaust gas heats the water in the warm water tank, and the water in the warm water tank can be used for showering, etc.; it is found that the utilization rate of the heat of the exhaust gas is low, and there is still a large amount of heat in the exhaust gas. It is wasted in vain, resulting in a waste of energy and low practicability; and it cannot treat the impurities in the exhaust gas, and if it is directly discharged, it will pollute the atmosphere and have poor environmental protection; at the same time, its warm water tank and exhaust pipe are integrally formed, The installation process is more complicated, and it is inconvenient to clean the inside of the warm water tank, resulting in lower reliability

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