Carbon nanotube gas adsorption device

Abstract

The utility model relates to a carbon nanotube gas adsorption device. The carbon nanotube gas adsorption device comprises a shell, electrostatic generation equipment and a filtering part, a gas inlet and a gas outlet are formed in the shell, and a hollow gas channel is formed between the gas inlet and the gas outlet; the electrostatic generation equipment comprises a positive electrode and an electrode contact, the positive electrode is arranged in the middle of the gas channel, and one end of the electrode contact is electrically connected with the positive electrode; the filtering part is arranged in the shell and surrounds the periphery of the gas channel, and the filtering part is filled with carbon nanotubes. According to the utility model, gas can normally flow through the gas channel, and meanwhile, the electrostatic generation equipment utilizes the principle of electrostatic adsorption, and high-voltage static electricity generated by the electrostatic generation equipment can enable harmful substances in the gas to deflect in the movement direction under the action of the static electricity and be captured by the filtering part so as to achieve the effect of adsorbing the harmful substances.

Description

Technical Field

[0001] The utility model relates to the technical field of gas adsorption devices. Background Art

[0002] Industry often requires that the amount of toxic and harmful substances and PM2.5 particles in the emitted gas be within a certain range, otherwise it will not meet emission regulations.

[0003] However, using ordinary gas filtering devices to treat exhaust gases is often prone to clogging problems. This is because traditional filtering devices often use a honeycomb ceramic filter element structure. The principle is to capture particulate matter and other harmful substances by allowing the gas to flow inside the filter element to meet emission requirements. However, the ceramic filter element itself will increase the exhaust back pressure and the gas flow will not be smooth, so it is easy to get clogged. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide a carbon nanotube gas adsorption device which can improve the adsorption efficiency of harmful substances and avoid blockage without affecting the gas circulation.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a carbon nanotube gas adsorption device,

[0006] It includes a housing, an electrostatic generating device and a filter unit;

[0007] The shell is provided with an air inlet and an air outlet, and a hollow gas channel is formed between the air inlet and the air outlet;

[0008] The static electricity generating device comprises a positive electrode and an electrode connector, wherein the positive electrode is arranged in the middle of the gas channel, and one end of the electrode connector is electrically connected to the positive electrode;

[0009] The filter part is arranged inside the shell and surrounds the gas channel, and the filter part is filled with nano carbon tubes.

[0010] Preferably, the positive electrode is cylindrical, and the axis of the gas channel coincides with the axis of the positive electrode.

[0011] Preferably, the electrostatic generating device further comprises an insulating bracket, the insulating bracket comprises an outer fixing portion and an inner fixing portion, a hollow structure is provided between the outer fixing portion and the inner fixing portion, the outer fixing portion is fixedly connected to the shell, and the inner fixing portion is fixedly connected to the positive electrode.

[0012] Preferably, there are two insulating brackets, which are respectively located at the air inlet and the air outlet.

[0013] Preferably, the shell includes a first end cover, a second end cover, a fixed support and a side enclosure, the air inlet is arranged at the first end cover, the air outlet is arranged at the second end cover, the first end cover and the second end cover are fixedly connected by the support, and the side enclosure surrounds the outside of the support and is fixedly connected between the first end cover and the second end cover.

[0014] Preferably, the shell further comprises a spring, one end of the pillar is provided with a flange, the spring is sleeved on the outside of the pillar and one end of the spring presses against the flange, and the other end presses against the first end cover or the second end cover.

[0015] Preferably, an insulating layer is provided on the inner wall of the side enclosure.

[0016] Preferably, it further comprises an electric heating device, wherein the electric heating device comprises an electric heating net, and the electric heating net is wrapped around the outside of the filter part.

[0017] Preferably, a gap is provided between the electric heating net and the inner wall of the shell.

[0018] Preferably, the filter portion is in the shape of a hollow column.

[0019] The beneficial effects of the utility model are as follows: the gas can flow normally through the gas channel, and at the same time, the electrostatic generating device utilizes the principle of electrostatic adsorption, and the high-voltage static electricity generated by it can cause the harmful substances in the gas to deflect their movement direction under the action of static electricity and be captured by the filter part to achieve the effect of harmful substance adsorption; in addition, the filter part formed by filling the nanocarbon tubes as the adsorbent can be more fully contacted and mixed with the gas to be purified, increasing the contact area and reaction opportunities between the adsorbent and the gas molecules, thereby improving the adsorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure shows the overall structure of the carbon nanotube gas adsorption device in the utility model;

[0021] Figure 2 The figure shows a cross-sectional view of the carbon nanotube gas adsorption device in the utility model;

[0022] Figure 3 Shown is a schematic diagram of the structure inside the housing of the utility model;

[0023] Description of labels:

[0024] 1. Shell; 11. Air inlet; 12. Air outlet; 13. First end cover; 14. Second end cover; 15. Fixed support; 16. Side panel; 17. Spring; 2. Electrostatic generating device; 21. Positive electrode; 22. Electrode connector; 23. Insulating bracket; 3. Filter unit; 4. Electric heating device. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0026] Please refer to Figures 1 to 3 As shown, a carbon nanotube gas adsorption device of the utility model comprises a housing 1, an electrostatic generating device 2 and a filter 3;

[0027] The housing 1 is provided with an air inlet 11 and an air outlet 12, and a hollow gas passage is formed between the air inlet 11 and the air outlet 12;

[0028] The static electricity generating device 2 comprises a positive electrode 21 and an electrode connector 22, wherein the positive electrode 21 is arranged in the middle of the gas channel, and one end of the electrode connector 22 is electrically connected to the positive electrode 21;

[0029] The filter part 3 is disposed inside the housing 1 and surrounds the gas channel. The filter part 3 is filled with carbon nanotubes.

[0030] Among them, the carbon nanotube gas adsorption device utilizes the electrostatic adsorption principle and the high adsorption performance of carbon nanotubes. When the gas enters the gas channel through the air inlet 11, the electrostatic generating device 2 will generate an electrostatic field of a certain intensity. Since the positive electrode 21 is located in the middle of the gas channel, the gas will pass through the positive electrode 21 and be ionized by the electrostatic field during the flow process. Under the action of the electrostatic field, the charged gas molecules or atoms are attracted by the positive electrode 21 and have a tendency to move toward the filter unit 3. In addition, the carbon nanotubes have an extremely high specific surface area and good electrical conductivity, which can effectively adsorb charged gas molecules. When the charged gas molecules contact the carbon nanotubes, they are adsorbed on their surface, thereby achieving gas purification. Through the combination of the electrostatic generating device 2 and the carbon nanotubes, the gas is first ionized by the electrostatic field during the flow process, and the charged gas molecules are then adsorbed by the carbon nanotubes, which greatly improves the gas purification efficiency. In addition, due to the high adsorption performance of the carbon nanotubes, a larger adsorption amount can be achieved in a smaller volume, thereby reducing the volume of the device.

[0031] In some specific embodiments, the positive electrode 21 is cylindrical, and the axis of the gas channel coincides with the axis of the positive electrode 21. The cylindrical positive electrode 21 can make the generated static electricity more uniform in all directions to ensure good all-directional adsorption effect.

[0032] In some specific embodiments, the electrostatic generating device 2 also includes an insulating bracket 23, and the insulating bracket 23 includes an external fixing portion and an internal fixing portion, and a hollow structure is provided between the external fixing portion and the internal fixing portion, and the external fixing portion is fixedly connected to the shell 1, and the internal fixing portion is fixedly connected to the positive electrode 21. Among them, the insulating bracket 23 is mainly used to fix the positive electrode 21, the external fixing portion is fixedly connected to the shell 1, and provides a stable external support for the electrostatic generating device 2, and the internal fixing portion is fixedly connected to the positive electrode 21 to ensure the stability of the position of the positive electrode 21 and reduce the displacement caused by vibration or other external factors. The hollow structure allows gas to pass better and optimizes the distribution of the electrostatic field. The gas flow is not blocked, and the charged gas molecules can be better concentrated in the filter part 3, thereby improving the adsorption efficiency.

[0033] In some specific embodiments, there are two insulating brackets 23 , which are respectively located at the air inlet 11 and the air outlet 12 .

[0034] In some specific embodiments, the housing 1 includes a first end cover, a second end cover 13, a first end cover; 14, a fixed support 15 and a side enclosure 16, the air inlet 11 is arranged at the first end cover, the air outlet 12 is arranged at the second end cover 13, the first end cover; 14, the first end cover and the second end cover 13, the first end cover; 14 are fixedly connected by a support, and the side enclosure 16 surrounds the outside of the support and is fixedly connected between the first end cover and the second end cover 13, the first end cover; 14. The housing 1 is divided into several parts, such as the first end cover, the second end cover 13, the first end cover; 14, the fixed support 15 and the side enclosure 16, which can facilitate the overall assembly.

[0035] In some specific embodiments, the housing 1 further includes a spring 17, one end of the pillar is provided with a flange, the spring 17 is sleeved on the outside of the pillar and one end of the spring 17 presses against the flange, and the other end presses against the first end cover or the second end cover 13; 14. In the process of assembly, the spring 17 can help to apply a reverse force to the first end cover or the second end cover 13; 14 to be assembled, so that during the assembly process, the first end cover or the second end cover 13; 14 needs to apply a uniform tightening force at each position where the spring 17 is provided to avoid the situation where one side is not fixed in place. At the same time, the spring 17 also helps to separate the first end cover or the second end cover 13; 14 when the housing 1 is disassembled as a whole for maintenance.

[0036] In some specific embodiments, an insulating layer is provided on the inner wall of the side enclosure 16 .

[0037] In some specific embodiments, an electric heating device 4 is further included, and the electric heating device 4 includes an electric heating net, and the electric heating net is wrapped around the outside of the filter 3. By turning on the power of the electric heating device 4, the electric heating device 4 can heat and burn the filter 3, so that the harmful substances therein are burned and separated, and the filter 3 is prevented from being blocked.

[0038] In some specific embodiments, a gap is provided between the electric heating grid and the inner wall of the housing 1 .

[0039] In some specific embodiments, the filter portion 3 is in the shape of a hollow column.

[0040] To sum up, the gas can flow normally through the gas channel. At the same time, the electrostatic generating equipment utilizes the principle of electrostatic adsorption. The high-voltage static electricity generated by it can cause the harmful substances in the gas to deflect their movement direction under the action of electrostatics and be captured by the filter part to achieve the effect of harmful substance adsorption. In addition, the filter part formed by filling nanocarbon tubes as adsorbents can be more fully contacted and mixed with the gas to be purified, increasing the contact area and reaction opportunities between the adsorbent and the gas molecules, thereby improving the adsorption efficiency.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A carbon nanotube gas adsorption device, characterized in that: It includes a housing, an electrostatic generating device and a filter unit; The shell is provided with an air inlet and an air outlet, and a hollow gas channel is formed between the air inlet and the air outlet; The static electricity generating device comprises a positive electrode and an electrode connector, wherein the positive electrode is arranged in the middle of the gas channel, and one end of the electrode connector is electrically connected to the positive electrode; The filter part is arranged inside the shell and surrounds the gas channel, and the filter part is filled with nano carbon tubes.

2. The carbon nanotube gas adsorption device according to claim 1, characterized in that: The positive electrode is cylindrical, and the axis of the gas channel coincides with the axis of the positive electrode.

3. The carbon nanotube gas adsorption device according to claim 1, characterized in that: The electrostatic generating device also includes an insulating bracket, which includes an outer fixing part and an inner fixing part, a hollow structure is provided between the outer fixing part and the inner fixing part, the outer fixing part is fixedly connected to the shell, and the inner fixing part is fixedly connected to the positive electrode.

4. The carbon nanotube gas adsorption device according to claim 3, characterized in that: There are two insulating brackets, which are respectively located at the air inlet and the air outlet.

5. The carbon nanotube gas adsorption device according to claim 1, characterized in that: The shell includes a first end cover, a second end cover, a fixed support and a side enclosure. The air inlet is arranged at the first end cover, and the air outlet is arranged at the second end cover. The first end cover and the second end cover are fixedly connected by the support. The side enclosure surrounds the outside of the support and is fixedly connected between the first end cover and the second end cover.

6. The carbon nanotube gas adsorption device according to claim 5, characterized in that: The housing also includes a spring, one end of the pillar is provided with a flange, the spring is sleeved on the outside of the pillar and one end of the spring presses against the flange, and the other end presses against the first end cover or the second end cover.

7. The carbon nanotube gas adsorption device according to claim 5, characterized in that: An insulating layer is arranged on the inner wall of the side enclosure.

8. The carbon nanotube gas adsorption device according to claim 1, characterized in that: It also includes an electric heating device, which includes an electric heating net, and the electric heating net is wrapped around the outside of the filter part.

9. The carbon nanotube gas adsorption device according to claim 8, characterized in that: A gap is provided between the electric heating net and the inner wall of the shell.

10. The carbon nanotube gas adsorption device according to claim 1, characterized in that: The filter part is in the shape of a hollow column.

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