Comprehensive Utilization System of Waste Heat of Natural Gas Thermal Oil Boiler
A heat-conducting oil boiler and natural gas technology, which is applied in heat storage heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of undisclosed fuel preheating, improve fuel combustion efficiency, and increase flue gas waste heat recovery rate , Improve the effect of heat exchange efficiency
Active Publication Date: 2019-07-26
广州汇锦能效科技有限公司
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However, the waste heat recovery device does not disclose or suggest how to use the waste heat of the flue gas to preheat the fuel
Method used
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[0025] Please refer to figure 1 , according to an embodiment of the present invention, the system for comprehensive utilization of waste heat of a natural gas heat-conducting oil boiler includes: a furnace body 100, a heat exchange coil 200, a nozzle 300, a flue gas pipeline 400, a first heat exchanger 500, and a second heat exchanger 600 and the chimney 700.
[0026] Wherein, a furnace 120 is disposed inside the furnace body 100 . The heat exchanging coil 200 is arranged in the furnace 120 for sending heat transfer oil into the furnace for heating. The nozzle 300 is arranged on the upper end wall of the furnace body 100 for injecting natural gas and combustion air into the furnace for burning and releasing heat. One end of the flue gas pipe 400 is connected to the flue gas outlet 140 of the furnace body 100 and the other end is connected to the chimney 700 .
[0027] Wherein, the first heat exchanger 500 and the second heat exchanger 600 are arranged at intervals in the fl...
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The invention discloses a waste heat integrated-utilization system for a natural gas heat-transfer oil furnace. The waste heat integrated-utilization system comprises a furnace body, a heat exchange coil, a nozzle and a flue gas pipe; the furnace body is internally provided with a hearth used for heating heat-transfer oil; the heat exchange coil is disposed inside the hearth; the heat-transfer oil flowing by the heat exchange coil is heated in the hearth; the nozzle is disposed on the upper end wall of the furnace body and is used for injecting natural gas and combustion-supporting air into the hearth for combustion and heat release; the flue gas pipe is connected to a flue gas outlet of the furnace body and is used for discharging the flue gas to a chimney. A first heat exchanger and a second heat exchanger are arranged in order inside the flue gas pipe, air from an air source flows by the first heat exchanger and is preheated before being delivered to the nozzle, and the natural gas from a natural gas source flows by the second heat exchanger and is preheated before being delivered to the nozzle. In addition, the system further comprises a waste heat generating set composed of a Freon evaporator, a double-screw generator and a Freon circulation loop; the waste heat generating set is used for further recycling waste heat of the flue gas flowing from the second heat exchanger.
Description
technical field [0001] The invention relates to a boiler waste heat utilization system, in particular to a heat conduction oil boiler waste heat utilization system. Background technique [0002] In the face of increasingly severe environmental problems and energy crises, the whole world is vigorously advocating energy conservation and emission reduction, especially for industrial kiln related industries with serious energy consumption and pollution. Factors that personnel must consider when designing such equipment. [0003] Taking the heat transfer oil boiler (heat carrier furnace) as an example, the flue gas temperature at the flue gas outlet usually reaches about 350 degrees Celsius. If these high-temperature flue gases are directly discharged into the environment, it will not only cause energy waste but also cause a certain degree of damage to the environment. [0004] As disclosed in Chinese Patent No. 200420027889.4, a waste heat recovery device for organic heat carr...
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IPC IPC(8): F24H7/00F24H9/00F23L15/00F23K5/20F01K25/10F01C13/00
CPCY02E20/34
Inventor 刘效洲苏晓键李瑞宇
Owner 广州汇锦能效科技有限公司