CN203830144U - Flow guiding structure for air purifier - Google Patents

Abstract

A flow guiding structure for an air purifier comprises a base; a cylinder body with two ends being open is horizontally arranged on the base; the left end of the cylinder body is provided with an air inlet cylinder in a horn mouth shape; the cylinder wall of the air inlet cylinder is in an interior-exterior double-layer structure; the air inlet cylinder wall of the double-layer structure form into a flow guiding chamber; the lower side of the air inlet cylinder is provided with a flow guiding fan; an air outlet of the flow guiding fan is communicated with the flow guiding chamber; an activated carbon perforated pipe is arranged inside the cylinder body; an annular empty chamber is formed between the cylinder body and the activated carbon perforated pipe; a plurality of dust collecting holes are uniformly formed in the activated carbon perforated pipe; a flow guiding cylinder with the large left portion and the small right portion is arranged inside the air inlet cylinder; the right end of the air inlet cylinder internal wall and the right end of the flow guiding cylinder form into an annular ejection opening; the ejection opening is communicated with the left end of the annular empty chamber. The flow guiding structure for the air purifier has the advantages of being reasonable in design and simple and compact in structure, enabling the air inlet volume to be large due to the flow guiding air inlet mode, enabling the air purification effect to be good and the air collection purification efficiency to be high.

Description

Drainage and air intake structure of air purifier

technical field

The utility model belongs to the technical field of environmental protection, in particular to an air drainage and air intake structure of an air purifier.

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.

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 throughout the world: 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 drainage and air intake structure of an air purifier with 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: the drainage and air intake structure of the air purifier includes a base, a cylindrical body with both ends open is horizontally arranged on the base, and a trumpet-shaped The air inlet tube, the wall of the air inlet tube is double-layer structure inside and outside, the wall of the double-layer structure of the air inlet tube forms a drainage cavity, the lower side of the air intake tube is provided with a drainage fan, and the air outlet of the drainage fan is connected with the drainage cavity, round There is an air outlet at the right end of the cylinder body, and an activated carbon porous tube is arranged in the cylinder body. The activated carbon porous tube is horizontally inserted in the cylinder body through the air outlet. 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. The air inlet tube is equipped with a guide tube with a large left and a small right, and the left end of the guide tube is connected to the inlet. On the outer wall of the air duct, the outside of the right end of the guide tube is connected to the inner wall of the cylinder through a connecting plate, and the right end of the inner wall of the air inlet tube and the right end of the guide tube form a circular injection port. The left end of the cavity is connected.

By adopting the above technical proposal, the base of the air purifier is provided with a voltage transformer and a dust collection tank, and a positive plate and a negative plate are also provided in the cylindrical body. Both the positive plate and the negative plate have a spiral structure. The positive plate is arranged in the annular cavity between the cylinder and the porous activated carbon tube along the axial direction. The porous activated carbon tube is placed on the inner ring of the positive plate, and the positive plate is connected to the cylinder. On the body wall, the negative plate is arranged in the porous activated carbon tube along the axial direction and connected to the porous activated carbon tube. The positive plate and the negative plate are respectively connected to the positive terminal and the negative terminal of the transformer device through wires; There is a wet sponge, and the lower part of the cylindrical body is provided with a dust drop hole connected with the wet sponge.

The outer ring of the negative plate is a sawtooth structure.

When the air purifier is in use, the exhaust fan is not installed in the air inlet tube. To make the air actively enter from the left end of the air inlet tube, it depends on the drainage effect of the drainage fan. Into the annular cavity, due to the uniform opening of several dust suction holes on the porous activated carbon tube, the high-speed flowing air creates a pressure difference with the surrounding area, thereby driving the flow of the surrounding air, so that the air at the left end of the air inlet tube is introduced into the into the activated carbon porous tube. This airflow method of the airflow fan produces greater air flow with less power. When the air flows between the positive plate and the negative plate, due to the high voltage between the positive plate and the negative plate, the corona phenomenon occurs in the air, so that the dust is negatively charged, and the dust passes through the vacuum under the action of the electric field force. The pores enter the annular cavity between the cylinder and the porous activated carbon tube and are adsorbed on the positive plate. At the same time, the dirty air is also adsorbed by the activated carbon, and formaldehyde, ammonia, benzene, xylene, radon, etc. Harmful gas molecules are quickly adsorbed, and of course some dust is also adsorbed by activated carbon. After double purification by electrostatic dust removal and activated carbon adsorption, 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. Regularly clean the wet sponge. In addition, the activated carbon porous tube can also be sucked out from the air outlet at the right end after absorbing more dust and harmful gases for cleaning or replacement.

The air purifier has a brand-new design for the air duct. The air inlet 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 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 design of the air purifier for the positive plate and the negative plate 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 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 a reasonable design, simple and compact structure, and adopts the way of drainage and air intake to make the air intake volume larger. The dust removal and purification method combines electrostatic dust removal and activated carbon adsorption. The double-helix plate structure fully increases the dust absorption The area makes the air purification effect good and the dust removal and purification efficiency high.

Description of drawings

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

Detailed ways

As shown in Figure 1, the air purifier includes a base 1 on which a cylindrical body 2 with both ends open is horizontally arranged, and a pressure transformer 3 and a dust collection tank 4 are arranged in the base 1, and the left end of the cylindrical body 2 is There is a trumpet-shaped air inlet cylinder 5, and the wall of the air inlet cylinder 5 is a double-layer structure. The wall of the double-layer structure air inlet cylinder 5 forms a drainage cavity 6, and the lower side of the air inlet cylinder 5 is provided with a drainage fan 7. The air outlet of the drainage fan 7 is communicated with the drainage chamber 6, and the right end of the cylindrical body 2 is provided with an air outlet 8, and the cylindrical body 2 is provided with an activated carbon porous tube 9, a positive plate 10 and a negative electrode plate 11, and the activated carbon porous tube 9 is formed by the air outlet. 8 is horizontally inserted in the cylinder 2, the right end of the activated carbon porous tube 9 is provided with a positioning ring 12, the outer wall of the positioning ring 12 is in contact with the inner wall of the cylinder 2, and several dust suction holes 13 are evenly opened on the activated carbon porous tube 9, Both the positive plate 10 and the negative plate 11 have a spiral structure, the positive plate 10 is arranged in the annular cavity 14 between the cylinder 2 and the porous activated carbon tube 9 along the axial direction, and the porous activated carbon tube 9 is placed in the inner ring of the positive plate 10 Above, the air inlet tube 5 is provided with a guide tube 18 with a large left and a small right, and the right end of the inner wall of the air intake tube 5 and the right end of the guide tube 18 form a circular injection port 15, and the injection port 15 and the annular cavity 14 The left end is connected, the positive plate 10 is connected on the inner wall of the cylinder body 2, the negative plate 11 is arranged in the activated carbon porous tube 9 along the axial direction and is connected on the activated carbon porous tube 9, the positive plate 10 and the negative plate 11 are connected to the transformer by wires respectively. The positive terminal and the negative terminal of the pressing device 3 are connected; a wet sponge 16 is arranged in the dust collection tank 4, and a dust falling hole 17 communicating with the wet sponge 16 is provided at the bottom of the cylindrical body 2 .

The outer ring of the negative electrode plate 11 has a sawtooth structure.

The transformer device 3 in the utility model is an existing mature technology, and the specific structure will not be repeated.

When the utility model is used in work, the drainage fan 7 is not arranged in the air inlet cylinder 5, so that the air is actively entered from the left end of the air inlet cylinder 5 by the drainage effect of the drainage fan 7, and the drainage fan 7 draws air into the drainage cavity 6 , sprayed into the annular cavity 14 by the injection port 15, because the activated carbon porous tube 9 is uniformly provided with several suction holes 13, the high-speed flowing air produces a pressure difference with the surrounding, thereby driving the flow of the surrounding air, In this way, the air at the left end of the air inlet cylinder 5 is introduced into the activated carbon porous pipe 9 . This air drainage method of the air drainage fan 7 uses less power to generate greater air flow. When the air flows between the positive plate 10 and the negative plate 11, due to the high voltage between the positive plate 10 and the negative plate 11, the corona phenomenon occurs in the air, so that the dust is negatively charged. Through the dust suction hole 13, it enters the annular cavity 14 between the cylinder 2 and the porous activated carbon tube 9 and is adsorbed on the positive plate 10. At the same time, the dirty air is also absorbed by the activated carbon to remove formaldehyde and ammonia in the air. , benzene, xylene, radon and other indoor harmful gas molecules are quickly adsorbed, and of course some dust is adsorbed by activated carbon. After double purification by electrostatic dust removal and activated carbon adsorption, clean air is discharged from the air outlet 8 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 16 by the dust falling hole 17 . Periodically clean the wet sponge 16 and get final product. In addition, the activated carbon porous pipe 9 can also be extracted by the air outlet 8 at the right end after absorbing more dust and harmful gas for cleaning or replacement.

The utility model has carried out a brand-new design on the air duct, and the air inlet adopts the shape of a bell mouth. Because the bell mouth has a certain curvature, according to the adsorption effect of the boundary layer, the air can flow along the edge of the cylinder 2 as much as possible, because the positive plate 10 And the negative plate 11 is in a position close to the cylindrical body 2, so that the air can be guided to flow to the positive plate 10 and the negative plate 11, so that the electrostatic dust removal efficiency of the positive plate 10 is improved.

The utility model is aimed at the design of the positive plate 10 and the negative plate 11, 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 10 Both the negative electrode plate 11 and the negative electrode plate adopt a double helix structure, and the outer ring of the negative electrode plate 11 is made into a zigzag shape. The double helix structure of the positive plate 10 and the negative plate 11 increases the area of the plates within a limited space, and the zigzag structure on the negative plate 11 can generate an uneven electric field, which can generate corona and prevent the expansion of the corona. Scatter to avoid breakdown.

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 (1)

1. The drainage and air intake structure of the air purifier is characterized in that: it includes a base, a cylindrical body with open ends at both ends is horizontally arranged on the base, and a trumpet-shaped air inlet tube is provided at the left end of the cylinder body. The cylinder wall is a double-layer structure inside and outside. The double-layer structure of the air inlet cylinder wall forms a drainage cavity. A drainage fan is provided on the lower side of the air intake cylinder. The air outlet of the drainage fan is connected with the drainage cavity. There is an activated carbon porous tube in the cylinder, and the activated carbon porous tube is horizontally inserted in the cylinder through the air outlet. An annular cavity is formed between the cylinder and the activated carbon porous tube. A positioning ring is provided at the right end of the activated carbon porous tube. 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. The air inlet tube is equipped with a guide tube with a large left and a small right, and the left end of the guide tube is connected to the outer wall of the air intake tube. , the outside of the right end of the guide tube is connected to the inner wall of the cylinder through a connecting plate, the right end of the inner wall of the air inlet tube and the right end of the guide tube form a circular injection port, and the injection port communicates with the left end of the annular cavity.