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Solution dehumidification device driven by low-temperature smoke gas

A solution dehumidification device, low-temperature flue gas technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve the problems of insufficient use of dehumidification solution, waste of water resources, low regeneration efficiency, etc., to achieve environmental protection, The effect of saving energy and improving work efficiency

Inactive Publication Date: 2009-09-23
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0003] The invention provides a solution dehumidification device driven by low-temperature flue gas, the purpose of which is to recycle the waste heat of low-temperature flue gas discharged in the industrial production process, recover the waste heat of low-temperature flue gas for solution regeneration, and use the dehumidification internal circulation and regeneration internal circulation Solve the problem of insufficient utilization of dehumidification solution and low regeneration efficiency, and solve the problem of waste of water resources by cooling water circulation

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  • Solution dehumidification device driven by low-temperature smoke gas

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Embodiment 1

[0015] Embodiment 1: The gas consumption of a certain heating furnace is 30000m 3 / h, the air consumption is 69000m 3 / h, the flue gas temperature is about 300°C. Using 50% LiBr solution as the dehumidifier, in the dehumidification internal circulation, the solution mass flow rate is 11.2kg / s, the solution temperature is 30°C, the wet air mass flow rate is 25.08kg / s, and the wet air temperature is 28°C. In the regeneration internal circulation, the solution flow rate is 12.17kg / s, the air mass flow rate is 25.08kg / s; the heat exchange area of ​​the flue heater is 120m 2 , the cooling area of ​​the solution cooler is 50m 2 . The air humidity after treatment is from 25g / m 3 Reduced to 10g / m 3 , using the treated air for heating furnace combustion can save gas by 2.16%, which is equivalent to saving 1772 tons of standard coal per year.

[0016] In addition, the treated air can reduce the power consumption of the fan, reduce the oxidation atmosphere of the atmosphere in the ...

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Abstract

The invention discloses a solution dehumidification device driven by low-temperature smoke gas, comprising a solution dehumidifier, a solution regenerator, a flue heater, a heat exchanger, a solution cooler, a concentrated solution trough, a diluted solution trough, a cooling tower, a water pump, a fan, a concentrated solution internal circulation pump, a concentrated solution external circulation pump, a diluted solution internal circulation pump, a diluted solution external circulation pump, a valve, an air inlet and an air outlet. The device takes a moisture-absorption solution as a dehumidizer to remove the water in the air; and the dehumidified air can be used for industrial combustion or used as the new air of an air conditioning system; and the device utilizes the low-temperature smoke gas exhausted by an industrial furnace as the heat source of the solution regenerator and drives the whole device to run by heating the solution with the flue heater. The device has the advantages of recovering the residual heat of the low-temperature smoke gas, saving energy resource, having high heat recovery rate and strong dehumidification capability, and the like.

Description

Technical field: [0001] The invention belongs to the technical field of waste heat recovery and utilization devices, and in particular relates to a solution dehumidification device driven by low-temperature flue gas. Background technique: [0002] The conventional dehumidification method is refrigeration dehumidification, which relies on the refrigerant provided by the refrigerator to cool the humid air to below the dew point through a heat exchanger to condense moisture. At present, the dehumidification of industrial combustion and air-conditioning fresh air mostly adopts the method of freezing dehumidification, but the disadvantages of freezing dehumidification include: high-grade energy consumption such as electricity (compression refrigeration) and steam (absorption refrigeration), and emission of CFC and HCFC that destroy the ozone layer Wait for the gas, wasting the energy needed to reheat the air. Solution dehumidification is to use salt solution with strong hygrosco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/26B01D53/18
Inventor 黄志甲雷博
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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