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A flue gas heating and needle-shaped tube technology, which is used in the design and manufacture of corrosion-resistant needle-shaped tubes, and the field of steel tube-and-tube type flue gas heating devices, can solve the problems of unfavorable smoke diffusion, aggravated photochemical smog, etc., and achieves good sealing effect. , Good wear resistance and corrosion resistance, and the effect of increasing the heat exchange area
Active Publication Date: 2018-09-11
孙友良
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This is not conducive to the diffusion of smoke, and it is easy to aggravate photochemical smog (haze)
Method used
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[0046] Embodiment: A needle-shaped tube type flue gas heating device, such as figure 1 with Figure 5 As shown, it includes a heater 1, a flue gas system, a steam system and a needle tube group cleaning system, and the flue gas system, the steam system and the needle tube group cleaning system all pass through the heater;
[0047] The shell 11 of the heater 1 has a flue gas inlet 12, a flue gas outlet 13, a steam inlet 14, a condensed water outlet 15, a cleaning water inlet 16 and a sewage outlet 17, the flue gas inlet communicates with the flue gas outlet, The steam inlet communicates with the condensed water outlet, and the cleaning water inlet communicates with the sewage outlet;
[0048] The smoke inlet is connected to the smoke inlet pipe 21, the smoke outlet is connected to the smoke exhaust pipe 22, the smoke inlet pipe or the smoke exhaust pipe is provided with an induced draft fan 23, and the inlet of the smoke gas is provided with an inlet pressure sensor 24. An ou...
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Abstract
The invention discloses a needle tube type flue gas heating device which comprises a heater, a flue gas system, a steam system and a needle tube set cleaning system. The flue gas system is formed by aflue gas inlet channel, an induced draft fan, an inlet pressure sensor, the heater, an outlet pressure sensor and a flue gas exhaust pipeline. The steam system is formed by a steam pipeline, a firstthrottle stop valve, a steam flow automatic adjusting valve, a first stop valve, a standby steam pipeline, a third stop valve, the heater, a condensation water pipeline, a second stop valve, a bell-shaped floater drainage valve, a second throttle stop valve, a standby condensation water pipeline and a fourth stop valve. The needle tube set cleaning system is formed by a cleaning water pipeline, afifth throttle stop valve, a cleaning water flow automatic adjusting valve, a fifth stop valve, the heater, a blow-down pipeline and a blow-down valve. A flue gas uniformization structure, a needle tube set cleaning structure and a needle tube set are arranged in the heater. The needle tube type flue gas heating device is small in size, low in cost and high in flue gas heating efficiency, automatic ash removal can be achieved on the needle tube set, and the flue gas heating effect can be guaranteed.
Description
technical field [0001] The invention belongs to the technical field of flue gas heating treatment, and relates to a steel tube shell (boiler) flue gas heating device, in particular to the design and manufacture of corrosion-resistant needle-shaped tubes, intelligent heating of boiler flue gas, reduction of nitrogen oxide deposition and ozone formation To prevent photochemical smog (smog) pollution technology, etc. Background technique [0002] In recent years, smog has affected people's daily life more and more seriously, and it has brought great threats to people's health, travel and other aspects. The main culprit of smog is low-temperature flue gas, especially large coal-fired boilers in power plants, chemical plants, cement plants, steel factories and other factories and mines are continuously emitting a large amount of low-temperature smoke into the atmosphere in various forms. gas. The low-temperature flue gas containing a large amount of water vapor cannot touch the...
Claims
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Application Information
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