CN203329850U - Device for automatically adding carbon nanotubes - Google Patents

Abstract

The invention relates to a device for automatically adding carbon nanotubes, which belongs to the field of electronics. The main technical problem it solves is to overcome the deficiency that the artificial addition of carbon nanotubes cannot meet the precision requirements. It consists of a flue inlet, a carbon nanotube storage chamber, a valve, a positive charge electrode, a negative charge electrode, a valve motor, a dust collection barrel electrode, a dust collection columnar electrode, an insulating support for the dust collection columnar electrode, a sampling hole, a sensor, and a smoke outlet. Composed of channel and single-chip microcomputer, it is characterized in that the cylindrical carbon nanotube storage cavity is connected with the cylindrical flue inlet through a circular valve. When the single-chip microcomputer judges that the sensor detects that the particle content of about 1 micron in the exhaust gas exceeds the content standard stored in the memory, the single-chip microcomputer sends an instruction to connect the valve motor through a resistor, a triode, and a relay. The valve motor rotates to open the valve. The carbon nanotube powder stored in the cylindrical carbon nanotube storage chamber enters the flue and mixes with the incoming smoke. It is mainly used in the field of atmospheric environmental governance.

Description

A device for adding carbon nanotubes automatically

technical field

The utility model belongs to the field of electronics, in particular to a device for automatically adding carbon nanotubes.

Background technique

Medical research shows that the incidence of lung cancer is on the rise, especially the incidence of lung cancer among non-smokers is also on the rise. It has been reported in the literature that the occurrence of this situation is closely related to PM2.5. PM2.5 refers to particles with an aerodynamic diameter of less than 2.5 microns, which can absorb various toxic substances and directly enter the lower respiratory tract of the human body. It is now recognized that PM2.5 is one of the pollutants.

Coal combustion used by thermal power enterprises and heating enterprises is one of the important sources of PM2.5, so the control of emissions from these enterprises is an important means to suppress PM2.5. Among the many treatment methods, the hybrid dust removal system combining static electricity with bag dust removal is an ideal method. The electrostatic precipitator is mainly removed by the particles being charged and adsorbed, but the particles near 1 micron are in the mixed area of field charging and diffusion charging, and their charging ability is very poor, so it is difficult to remove. The bag filter is a dry dust filter device. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-woven felt, and uses the filter function of the fiber fabric to filter the dust-containing gas. When the dust-containing gas enters the bag filter, the dust with large particles and specific gravity will be discharged due to the action of gravity. It settles down and falls into the ash hopper. When the gas containing fine dust passes through the filter material, the dust is blocked and the gas is purified. Since the particles near 1 micron are really in the mixed zone of inertia and diffusion control, the removal efficiency of the bag is also very low. Even if the peritoneal filter material is used to enhance the interception effect and significantly enhance the effect on PM2.5, it still fails to meet the requirements. . In order to improve the filtration rate of PM2.5, carbon nanotube powder is properly added at the entrance of the flue. Carbon nanotubes are easily charged and have high adsorption capacity. The charged carbon nanotubes can adsorb micron-sized dust, and the charged carbon nanoparticles after adsorbing dust are easily adsorbed by the electric field, so PM2.5 can be effectively removed. The addition of carbon nanotube powder should be determined according to the specific situation. Manual addition cannot meet the precise requirements and is labor-intensive. For this reason, the utility model provides a device for automatically adding carbon nanotubes to remove PM2.5.

Contents of the invention

In order to overcome the shortcomings of manually adding carbon nanotubes that cannot meet the accuracy requirements and have high labor intensity, the utility model provides an automatic adding carbon nanotube device, which can accurately and automatically add carbon nanotubes required.

The technical solution adopted by the utility model to solve its technical problems is: the utility model device consists of a flue inlet, a carbon nanotube storage chamber, a valve, a positive charge electrode, a negative charge electrode, a valve motor, a dust-collecting bucket electrode, a dust-collecting Composed of columnar electrode, dust-collecting columnar electrode insulation bracket, sampling hole, sensor, flue outlet, and single-chip microcomputer, the feature is that the cylindrical carbon nanotube storage cavity is connected with the cylindrical flue inlet through a circular valve.

The sensor is a CCD with a microscope, which can accurately monitor the particle content. The sensor sends the detection result to the single chip microcomputer. Particle content standards are pre-stored in memory. When the single-chip microcomputer judges that the sensor detects that the particle content of about 1 micron in the exhaust gas exceeds the pre-stored content standard in the memory, the single-chip microcomputer sends an instruction to connect the valve motor through a resistor, a triode, and a relay. The valve motor rotates to open the valve. The carbon nanotube powder stored in the cylindrical carbon nanotube storage cavity enters the flue and mixes with the incoming smoke.

The mixed smoke enters the charging area. The charged region is the plasma region formed by the discharge between the charged positive electrode and the charged negative electrode. When the smoke and dust pass through the charging area, the large particle size particles collide with the electrons to charge. Small particle size particles, especially particles around 1 micron, are difficult to charge. Carbon nanotubes are easily charged in the charging region. The charged carbon nanotubes adsorb small particles during their travel. The smoke and dust entering the dust collection area will be collected by the dust collection plate.

The dust collection area is composed of a dust collection bucket electrode and a dust collection columnar electrode. The dust-collecting columnar electrode is supported and suspended in the center of the flue through the dust-collecting columnar electrode insulating support. The large-size particles of smoke and dust entering the dust collection area are attracted by the dust-collecting bucket-shaped electrode and move to the dust-collecting bucket-shaped electrode for adsorption. The small particle size particles adsorbed by the carbon nanotubes are adsorbed by the dust-collecting barrel electrode together with the carbon nanotubes, so the proportion of the small particle size particle content in the exhausted smoke decreases. When the single-chip microcomputer judges that the sensor detects that the content of the small particle size reaches the discharge standard, the single-chip microcomputer sends an instruction to close the valve motor through a resistor, a triode, and a relay. The valve resets under the elastic force of the return spring, so that the carbon nanotube storage cavity is closed, and the carbon nanotubes are stopped from being added to the flue.

The beneficial effect of the utility model is that the precise addition of carbon nanotubes can effectively remove PM2.5. It is mainly used in the field of atmospheric environmental governance.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a longitudinal sectional structure diagram of a device for automatically adding carbon nanotubes.

Fig. 2 is the schematic circuit diagram of the utility model.

In the figure 1. Inlet flue, 2. Carbon nanotube storage cavity, 3. Valve, 4. Charged positive electrode, 5. Charged negative electrode, 6. Dust-collecting bucket electrode, 7. Dust-collecting columnar electrode, 8. Collector Dust columnar electrode insulation support, 9. sampling hole, 10. sensor, 11. flue outlet, 12. single chip microcomputer, 13. valve motor, 14. relay, 15. triode, 16. resistance, 17. flue wall.

Detailed ways

In Figure 1, the carbon nanotube storage chamber 2 is connected to the flue 1 through the valve 3, the charged positive electrode 4 and the charged negative electrode 5 are respectively installed on the flue wall 17, and the dust-collecting barrel electrode 6 is installed on the flue wall 17, the dust-collecting columnar electrode 7 is connected to the flue wall 17 through the dust-collecting columnar electrode insulating support 8, and the sensor 10 is connected to the flue 11 through the sampling hole 9.

In the embodiment shown in FIG. 3 , the sensor 10 is connected with the single-chip microcomputer 12 , and the valve motor 13 is connected with the single-chip microcomputer 12 through the relay 14 , the triode 15 and the resistor 16 .

Claims (2)

1. A device for automatically adding carbon nanotubes, which consists of a flue inlet, a carbon nanotube storage chamber, a valve, a positive charging electrode, a negative charging electrode, a valve motor, a dust-collecting bucket electrode, a dust-collecting columnar electrode, and a dust-collecting columnar electrode It consists of an insulating support, a sampling hole, a sensor, a flue outlet, and a single-chip microcomputer, and is characterized in that a cylindrical carbon nanotube storage cavity is connected with a cylindrical flue inlet through a circular valve. 2. The device for automatically adding carbon nanotubes according to claim 1, characterized in that: the valve motor is connected to the single-chip microcomputer through a relay, a triode, and a resistor.

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