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Residual heat utilization device of boiler heat smoke method of using same

A technology of waste heat and hot smoke, which is applied in the field of waste heat utilization of boilers in industrial factories, can solve problems such as resource loss, waste, and environmental pollution, and achieve the effect of saving energy and reducing fuel consumption

Active Publication Date: 2007-09-19
SHANGHAI FORWARD MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In general, the hot smoke is directly discharged into the atmosphere from the boiler, and the rest of the heat is wasted, which is not only a loss of resources, but also a scourge of polluting the environment.
Waste heat utilization is a systematic project, involving equipment, technology, and management factors. At present, there is no reasonable and effective technology and equipment in this area.

Method used

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  • Residual heat utilization device of boiler heat smoke method of using same

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Embodiment Construction

[0011] This embodiment is applied to a coal-fired boiler hot smoke waste heat utilization device with a heat production of 1 million Kcai / h per hour. It is a set of boiler hot smoke waste heat utilization device combined according to the structure of the attached drawing. Water generation tower, air preheating tower, exchanger, liquid level gauge, blower, hot water tank for production, hot water tank for domestic use, valves and pipelines, all components are standard parts purchased in the market, among which: Adopt 3.7KW×4P×1490rpm induced draft fan 1 to send the hot smoke into 20M through the hot smoke output pipeline 2 with a diameter of ∮500mm 3 The hot water generation tower 3, through 200M 2 The heat exchanger 4 transfers the heat to the tap water sprayed by the 0.45m / min sprinkler 5 to form hot water 6, and the hot water 6 is sent to 20M through the hot water output pipeline 7 with a diameter of ∮80mm 3 The domestic hot water tank 8 and the production hot water tank 9 ...

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Abstract

The present invention relates to a boiler hot smoke and residual heat using device and a using method. Commonly, the hot smoke after heat generation is discharged to the atmosphere directly; there is no reasonable and effective technology for using residual heat. The present invention mainly includes a draft fan, a hot water generating tower, an air preheating tower, exchangers, a level meter, a blower, a hot water box for production, a life using hot water box, a valve and a pipeline. The reclaimed hot water is exchanged fully twice by the exchangers in the hot water generating tower and the air preheating tower, and then is used for production and life; the reclaimed hot air is used for boiler preheating in order to save fuel, the useable heat of the fuel is 1.2 times than before, and the maximum residual use is achieved. It is also a big contribution for resource saving and environment protection.

Description

Technical field: [0001] The invention relates to a technology for utilizing waste heat of hot smoke from boilers in industrial factories, in particular to a device for utilizing waste heat of exhaust heat of coal, gas and oil-fired boilers and its use. Background technique: [0002] In industrial factories, when mechanical equipment needs heat medium to heat up, most of them will use oil or gas or coal-fired boilers to heat the heat medium. During the heating process, a large amount of flue gas is generated. The temperature of the flue gas is high, the flow rate is large, and its heat load is large. use value. In general, the hot smoke is directly discharged into the atmosphere from the boiler, and the rest of the heat is wasted, which is not only a loss of resources, but also a scourge of polluting the environment. Waste heat utilization is a systematic project, involving equipment, technology, and management factors. At present, there is no reasonable and effective techno...

Claims

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Application Information

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IPC IPC(8): F24H1/50F24H1/52
CPCY02E20/30
Inventor 沈建华项海燕
Owner SHANGHAI FORWARD MASCH CO LTD
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