A method and device for establishing a water vapor supersaturation field
A technology of saturation and water vapor, which is applied in the research field of supersaturated environment required to promote the growth of fine particulate matter in flue gas, can solve the problems of increased steam consumption and energy consumption, difficult control and measurement of supersaturation, etc., and achieves simple structure and convenient use. Effect
Active Publication Date: 2017-07-07
SOUTHEAST UNIV
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Problems solved by technology
The above methods are not easy to control and measure the supersaturation of the supersaturation field, and the consumption of steam increases the energy consumption of establishing a supersaturated water vapor environment
Method used
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Embodiment Construction
[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Such as figure 1 As shown, a device for establishing a water vapor supersaturation field includes a flue gas storage room 1, a cooling water tank 2, a nuclear chemical chamber 3, a booster fan 4, pressure gauges 5 and 6, a thermometer 7 and a temperature-hygrometer 8;
[0022] The nucleation chamber 3 is fixed inside the cooling water tank 2 through a fixed structure 13, the cooling water tank 2 is provided with a cooling water tank water outlet 11 and a cooling water tank water inlet 12, and is connected with the cooling water tank temperature control unit 10; the nucleation chamber 3 There is a flue gas inlet 9 at one end, the flue gas inlet 9 is connected with the booster fan 4, the booster fan 4 is connected with the flue gas storage room 1, the flue gas inlet 9 is provided with a pressure gauge 5 and a temperature and humidity meter...
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The invention discloses a method and apparatus for establishing a field with a vapor supersaturation degree. The device comprises a smoke store room, a cooling water tank, a nucleating chamber, a booster fan, a pressure gauge, a thermometer, and a hygrothermograph. The nucleating chamber is fixed in the cooling water tank, which is equipped with a water inlet and a water outlet and is connected to a cooling tank temperature control unit. One end of the nucleating chamber is provided with a smoke inlet, which is connected to the booster fan, and the booster fan is connected to the smoke store room. The other end of the nucleating chamber is provided with a piston, which is connected to a mechanical control unit. The bottom of the nucleating chamber is provided with an air outlet, and an air outlet valve is arranged at the air outlet. The nucleating chamber is further equipped with the pressure gauge and the thermometer. The device is simple in structure and convenient to use. The supersaturation degree in the nucleating chamber can be effectively adjusted through controlling a movement position of the piston, so that required supersaturated gas is obtained.
Description
technical field [0001] The invention belongs to the technical field of supersaturated environment research required to promote the growth of smoke fine particles, and relates to a method and device for establishing a water vapor supersaturation field. Background technique [0002] At present, the treatment method of PM2.5 emission mainly adopts the method of setting up pretreatment facilities in front of the dust collector or scrubber to make it grow into larger particles through physical or chemical action and then remove them. The application of steam phase change is to promote PM2. .5 Important measures for coagulation and growth. The mechanism of using steam phase change to promote the growth of fine particles is: in the supersaturated steam environment, the steam takes fine particles as condensation nuclei to undergo a phase change, which makes the particle size grow and the quality increases. Therefore, in the process of promoting the growth of fine particles, the sup...
Claims
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IPC IPC(8): B01D51/06
CPCB01D51/06B01D2258/0283
Inventor 张军于燕徐俊超孟强
Owner SOUTHEAST UNIV