CN203829865U - Static electricity and activated carbon combined air purifier - Google Patents

Abstract

The air purifier combined with static electricity and activated carbon includes a base, on which there is a cylindrical body with both ends open horizontally, a voltage transformer is installed in the base, and a trumpet-shaped air inlet is provided at the left end of the cylindrical body. There is an air outlet at the right end, and the cylinder is equipped with an exhaust fan, a retaining ring, porous activated carbon tubes, positive plates and negative plates. Several suction holes are evenly opened on the tube, the positive plate and the negative plate are in a spiral structure, the positive plate is arranged between the cylinder and the porous activated carbon tube in the axial direction, and the negative plate is arranged in the porous activated carbon tube in the axial direction . The utility model adopts the dust removal and purification method combining electrostatic dust removal and activated carbon adsorption. The double-helix plate structure fully increases the dust suction area, so that the air purification effect is good and the dust removal and purification efficiency is high.

Description

Electrostatic and activated carbon combined air purifier

technical field

The utility model belongs to the technical field of environmental protection, in particular to an air purifier combined with static electricity and active carbon.

Background technique

In recent years, air quality in cities has become one of the most important issues that people pay attention to, and people's demand for clean air is becoming increasingly urgent.

Electrostatic dust removal is a kind of gas dust removal method. The dust-containing gas is electrically separated when it passes through the high-voltage electrostatic field, and the dust particles and negative ions are combined with negative charges, and tend to discharge and deposit on the surface of the anode. It is used to purify gas or recover useful dust particles in metallurgical and chemical industries. A dust collection method that uses an electrostatic field to ionize the gas so that the dust particles are charged and adsorbed to the electrode. In the strong electric field, air molecules are ionized into positive ions and electrons, and the electrons encounter dust particles in the process of rushing to the positive electrode, so that the dust particles are negatively charged and adsorbed to the positive electrode for collection. Of course, through technological innovation in recent years, there is also a way to collect dust using negative plates. In the past, it was often used in coal-fueled factories and power stations to collect coal ash and dust in the flue gas. In metallurgy, it is used to collect oxides of tin, zinc, lead, aluminum, etc., and now there are dust removal and sterilization products that can be used in households.

Ordinary purifiers use filter paper to filter the dust in the air, which can easily block the filter holes and accumulate more and more dust, which not only has no sterilization effect, but also easily causes secondary pollution. The electrostatic precipitator technology has the following advantages:

(1) High dust removal efficiency;

(2) It can purify a large amount of air;

(3) The particle size range that can be removed is wide;

(4) It can purify dusty flue gas with high temperature;

(5) Simple structure, low air velocity and small pressure loss;

(6) Energy consumption is lower than other types of dust collectors;

(7) The electrostatic precipitator can realize microcomputer control and remote operation.

When using electrostatic dust removal, under the action of radiation friction, etc., the air contains a small amount of free ions, and these free ions alone cannot fully charge the dust particles in the dusty air. The general electrostatic precipitator adopts the method of charging electric field and separating electric field. In the high-voltage electric field, the discharge electrode is connected to the negative electrode of the high-voltage DC power supply, and the dust collecting electrode is connected to the positive electrode. The dust collecting electrode can be a flat plate or a round tube.

If the voltage is further increased, the range of air ionization (corona) gradually expands, and finally all the air between the electrodes is ionized. This phenomenon is called electric field breakdown. When the electric field breaks down, spark discharge occurs, the circuit is short-circuited, and the electrostatic precipitator stops working. In order to ensure the normal movement of the electrostatic precipitator, the range of the corona should not be too large, and should generally be limited to the vicinity of the corona pole. If the electric field intensity at each point in the electric field is not equal, the electric field is called inhomogeneous electric field. The electric field in which the electric field intensity at each point in the electric field is equal is called a uniform electric field. For example, the electric field composed of two flat plates is a uniform electric field. In the uniform electric field, as long as the air at a certain point is ionized, the air between the electrodes will be partially ionized, and the electrostatic precipitator will break down. Therefore, a non-uniform electric field must be set in the electrostatic precipitator.

In addition, activated carbon is a black porous solid carbon. In the early days, it was produced by carbonization and activation of wood, hard nut shells or animal bones, and later changed to coal through crushing and molding or carbonization and activation of uniform coal particles. The main component is carbon, and contains a small amount of oxygen, hydrogen, sulfur, nitrogen, chlorine and other elements. The specific surface area of ordinary activated carbon is between 500 and 1700m2/g. It has strong adsorption properties and is an industrial adsorbent with a wide range of uses.

Recognized worldwide: Activated carbon is a "universal adsorbent". Expert Tip: Activated carbon adsorption method to remove indoor pollution is currently the most widely used, most mature, safest, most reliable method, and absorbs the most types of substances. As an excellent physical and chemical adsorbent, activated carbon has attracted more and more attention.

High-efficiency and environmentally friendly activated carbon packs can absorb all harmful indoor gas molecules such as formaldehyde, ammonia, benzene, xylene, and radon in the air, quickly eliminate decoration odors, and evenly adjust space humidity. , Refrigerators, bathrooms, floors, fish tanks, cars, air conditioners, computers, offices, hotels and entertainment places, all have very good results. It is the nemesis of formaldehyde and an expert in antivirus.

Since the effect of electrostatic dust removal or activated carbon adsorption alone is not ideal in the actual use process, if the two are combined, the air purification effect will be very good, but at present, there is no product on the market that combines static electricity and activated carbon for air purification.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides an air purifier combined with static electricity and activated carbon, which has good air purification effect, large discharge area and high dust removal efficiency.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an air purifier combined with static electricity and activated carbon, including a base, a cylindrical body with open ends at both ends is horizontally arranged on the base, a voltage changing device is arranged in the base, and the cylinder There is a trumpet-shaped air inlet at the left end of the body, and an air outlet at the right end of the cylinder. In the cylinder, there are exhaust fans, retaining rings, porous activated carbon tubes, positive plates and negative plates. The exhaust fan is located inside the air inlet, and the activated carbon is porous. The pipe is horizontally inserted in the cylinder body through the air outlet, the retaining ring is located on the right side of the exhaust fan, the outer wall of the retaining ring is fixed on the inner wall of the cylinder, the outer circumference of the left end of the activated carbon porous pipe is in contact with the inner wall of the retaining ring, and the right end of the activated carbon porous pipe is set There is a positioning ring, the outer wall of the positioning ring is in contact with the inner wall of the cylinder, and several dust suction holes are evenly opened on the porous activated carbon tube. In the annular cavity between the activated carbon porous tubes, the positive plate is connected to the inner wall of the cylinder, and the negative plate is arranged in the activated carbon porous tube along the axial direction and connected to the activated carbon porous tube. Connect the positive terminal and negative terminal of the pressure device.

The base is also provided with a dust collection tank, and a wet sponge is arranged in the dust collection tank, and a dust drop hole connected with the wet sponge is provided at the lower part of the cylindrical body.

The outer ring of the negative electrode plate has a sawtooth structure.

By adopting the above-mentioned technical scheme, when the utility model is used in work, the exhaust fan sucks the dirty air into the porous activated carbon tube from the air inlet. When the air flows between the positive plate and the negative plate, due to the With high voltage, the corona phenomenon occurs in the air, so that the dust is negatively charged. Under the action of the electric field, the dust passes through the suction hole and enters the annular cavity between the cylinder and the porous activated carbon tube and is adsorbed to the positive electrode. At the same time, the dirty air is also adsorbed by activated carbon, which quickly absorbs indoor harmful gas molecules such as formaldehyde, ammonia, benzene, xylene, and radon in the air. Of course, some dust is also adsorbed by activated carbon. Under double purification, clean air is discharged from the air outlet at the right end of the cylinder. When there is a lot of dust adsorption, turn off the power, beat the vibrating cylinder to make the dust fall on the wet sponge through the dust drop hole. It is enough to clean the wet sponge regularly. In addition, after the activated carbon porous tube absorbs more dust and harmful gases, it can also be drawn out from the air outlet at the right end for cleaning or replacement.

The utility model has a brand-new design for the air duct. The air inlet adopts the shape of a bell mouth. Because the bell mouth has a certain curvature, according to the boundary layer adsorption effect, the air can flow along the edge of the cylinder as much as possible. The plates are located close to the cylindrical body, so that the air can be guided to the positive plate and the negative plate, so that the electrostatic dust removal efficiency of the positive plate is improved.

The utility model aims at the design of the positive plate and the negative plate, which not only needs to increase the discharge area, increase the dust removal efficiency, but also generate a non-uniform electric field to avoid short circuit when the whole plate is broken down, so the positive plate and the negative plate Both adopt a double helix structure, and the outer ring of the negative plate is made into a zigzag shape. The double helix structure of the positive plate and the negative plate increases the area of the plate within a limited space, and the zigzag structure on the negative plate can generate an uneven electric field, which can generate corona while preventing the corona from spreading and avoiding shock. wear.

To sum up, the utility model has reasonable design, simple and compact structure, and adopts the dust removal and purification method combining electrostatic dust removal and activated carbon adsorption. high.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, the electrostatic and activated carbon combined air purifier of the present utility model includes a base 1, a cylindrical body 2 with both ends open is horizontally provided on the base 1, and a voltage changing device 3 is arranged in the base 1, and the circular The left end of the cylindrical body 2 is provided with a trumpet-shaped air inlet 4, the right end of the cylindrical body 2 is provided with an air outlet 5, and the cylindrical body 2 is provided with an exhaust fan 6, a retaining ring 7, an activated carbon porous tube 8, a positive plate 9 and a negative electrode. The plate 10, the exhaust fan 6 are located inside the air inlet 4, the activated carbon porous tube 8 is horizontally inserted in the cylinder 2 through the air outlet 5, the retaining ring 7 is located on the right side of the exhaust fan 6, and the outer wall of the retaining ring 7 is fixed on the cylinder 2 On the inner wall, the outer circumference of the left end of the activated carbon porous tube 8 is in contact with the inner wall of the retaining ring 7, and the right end of the activated carbon porous tube 8 is provided with a positioning ring 11, and the outer wall of the positioning ring 11 is in contact with the inner wall of the cylinder body 2, and the activated carbon porous tube 8 is evenly opened. There are several suction holes 12, the positive plate 9 and the negative plate 10 are in a spiral structure, the positive plate 9 is arranged in the annular cavity 13 between the cylinder body 2 and the activated carbon porous tube 8 along the axial direction, the positive plate 9 Connected on the inner wall of the cylinder 2, the negative plate 10 is arranged in the porous activated carbon tube 8 along the axial direction and connected to the porous activated carbon tube 8, the positive plate 9 and the negative plate 10 are respectively connected to the positive electrode of the transformer device 3 through wires terminal and the negative terminal connection.

The base 1 is also provided with a dust collection tank 14, and a wet sponge 15 is arranged in the dust collection tank 14, and a dust drop hole 16 communicating with the wet sponge 15 is provided at the bottom of the cylindrical body 2.

The outer ring of the negative electrode plate 10 has a sawtooth structure.

When the utility model is in use, the exhaust fan 6 sucks dirty air into the activated carbon porous tube 8 through the air inlet 4. When the air flows between the positive plate 9 and the negative plate 10, due to the positive plate 9 and the negative plate There is a high voltage between 10, so the air corona phenomenon occurs, so that the dust is negatively charged, and under the action of the electric field force, the dust passes through the suction hole 12 and enters the annular space between the cylinder 2 and the porous activated carbon tube 8 The cavity 13 is adsorbed on the positive plate 9, and the dirty air is also adsorbed by the activated carbon, and the indoor harmful gas molecules such as formaldehyde, ammonia, benzene, xylene, radon, etc. in the air are quickly adsorbed. Of course, some dust is also adsorbed by the activated carbon. After the double purification of electrostatic dust removal and activated carbon adsorption, the clean air is discharged from the air outlet 5 at the right end of the cylinder body 2. When the dust is absorbed more, turn off the power supply, beat the vibration cylinder 2 and make the dust fall on the wet sponge 15 through the dust falling hole 16 . Periodically clean the wet sponge 15 and get final product. In addition, the activated carbon porous tube 8 can be extracted by the air outlet 5 at the right end after absorbing more dust and harmful gas for cleaning or replacement.

The utility model has a brand-new design for the air duct. The air inlet 4 adopts the shape of the bell mouth. Because the bell mouth has a certain curvature, according to the boundary layer adsorption effect, the air can flow along the edge of the cylinder 2 as much as possible. Because the positive plate 9 and the negative plate 10 are in the position close to the cylinder 2, so that the air can be guided to flow to the positive plate 9 and the negative plate 10, so that the electrostatic dust removal efficiency of the positive plate 9 is improved. The transformer device 3 of the utility model is an existing mature technology, and the specific structure will not be repeated.

The utility model is aimed at the design of the positive plate 9 and the negative plate 10, which not only needs to increase the discharge area, increase the dust removal efficiency, but also generate a non-uniform electric field to avoid short circuit when the entire plate is broken down, so the positive plate 9 Both the negative electrode plate 10 and the negative electrode plate adopt a double helix structure, and the outer ring of the negative electrode plate 10 is made into a zigzag shape. The double helix structure of the positive plate 9 and the negative plate 10 increases the area of the plates within a limited space, and the zigzag structure on the negative plate 10 can generate an inhomogeneous electric field.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model belong to the technology of the utility model. protection scope of the program.

Claims (3)

1. An air purifier combined with static electricity and activated carbon, which is characterized in that it includes a base, on which there is a cylindrical body with open ends at both ends. The air inlet, the right end of the cylinder is equipped with an air outlet, and the cylinder is equipped with an exhaust fan, a retaining ring, an activated carbon porous tube, a positive plate and a negative plate, the exhaust fan is located inside the air inlet, and the activated carbon porous tube is inserted horizontally from the air outlet. Inside the cylinder, the baffle ring is located on the right side of the exhaust fan, and the outer wall of the baffle ring is fixed on the inner wall of the cylinder. The outer circumference of the left end of the porous activated carbon tube is in contact with the inner wall of the baffle ring. The inner wall of the cylinder is in contact with each other, and several suction holes are evenly opened on the porous activated carbon tube. In the chamber, the positive plate is connected to the inner wall of the cylinder, and the negative plate is arranged in the porous activated carbon tube along the axial direction and connected to the porous activated carbon tube. terminal block connection. 2. The electrostatic and activated carbon combined air cleaner according to claim 1, characterized in that: a dust collection tank is also provided in the base, a wet sponge is provided in the dust collection tank, and a wet sponge is provided at the bottom of the cylinder body. Sponge-connected dust-fall holes. 3. The electrostatic and activated carbon combined air purifier according to claim 1, characterized in that: the outer ring of the negative plate is a sawtooth structure.