CN206372642U - It is a kind of portable except radon device - Google Patents

Abstract

The utility model discloses a mobile radon removal device, which comprises a casing (1) and a roller (2) placed at the lower part of the casing (1), and an air inlet (3) is also arranged on the casing (1). and the air outlet (4), and also includes an air duct (5), the air duct (5) communicates with the air inlet (3) and the air outlet (4) inside the housing (1), and the air duct (5) ) along the direction of airflow are provided with honeycomb electrostatic field (6), electrostatic fiber filter (7) and blower fan (8), described honeycomb electrostatic field (6) and electrostatic fiber filter (7) are all with the described The inner wall of the air duct (5) is airtightly connected, and the outlet outer wall of the fan (8) is airtightly connected with the inner wall of the air duct (5). The mobile radon removal device of the utility model has the advantages of compact and simple structure, energy saving and high efficiency.

Description

A mobile radon removal device

technical field

The utility model belongs to the technical field of air purification, in particular to a portable radon removal device with compact and simple structure, energy saving and high efficiency.

Background technique

Radon gas and its progeny in the air are harmful to the human body. Because radon gas is inhaled by the human body, most of it can be excreted from the body, and the harm is relatively small. The radon daughters are metal particles, which are easily trapped by the respiratory tract, accumulate locally and decay in situ. The alpha particles produced by the decay can destroy or change the molecular structure of DNA in human cells, leading to abnormal cell division, and eventually may induce lung cancer.

In order to remove radon daughters contained in the air, the Chinese utility model patent "a composite high-voltage electrostatic device" (application number: 201220387092.X, authorized announcement date: 2013.3.6) discloses a The radon daughter device includes a circular tube high-voltage electrostatic device, a flat-plate high-voltage electrostatic device, and a chemical fiber filter that are connected in series through the air duct. The charged bound and unbound radon daughters flow through the tube-type high-voltage electrostatic field and the flat-plate high-voltage electrostatic field sequentially with the air to remove part of the radon daughters, and the remaining charged bound and unbound radon daughters The air flows through the pre-set chemical fiber filter to completely remove the radon daughters in the air.

The problems with this device are:

1. Complex structure, large volume, and high cost: the double electric field is formed by a circular tube-type high-voltage electrostatic field and a flat-plate high-voltage electrostatic field. The electrostatic field is made by fixing the round hole electrode on the metal plate. Due to the influence of the round hole structure, there is an invalid ventilation area between the holes, resulting in a small effective ventilation area. In order to ensure the ventilation rate, further increase Large device volume; finally, the processing technology of the circular hole-shaped electric field is complicated, which makes the device cost higher;

2. Large power consumption and high control requirements: The circular tube high-voltage electrostatic field and the flat-plate high-voltage electrostatic field are used in series. Each electric field needs to be powered and controlled separately, which not only consumes a lot of energy, but also requires high control.

Contents of the invention

The purpose of the utility model is to provide a mobile radon removal device, which has a compact and simple structure, energy saving and high efficiency.

The technical solution to realize the purpose of this utility model is:

A mobile radon removal device, comprising a housing (1) and rollers (2) placed on the lower part of the housing (1), the housing (1) is also provided with an air inlet (3) and an air outlet ( 4), also includes an air duct (5), the air duct (5) communicates with the air inlet (3) and the air outlet (4) inside the housing (1), and the air flow along the air flow in the air duct (5) Direction is provided with honeycomb type electrostatic field (6), electrostatic fiber filter (7) and blower fan (8) successively, and described honeycomb type electrostatic field (6) and electrostatic fiber filter (7) are all connected with described air passage (5) ) inner wall is airtightly connected, and the outlet outer wall of the blower fan (8) is airtightly connected with the air duct (5) inner wall.

The working principle of the present utility model is:

Radon daughters are metal particles, which can easily combine with dust in the air to form combined radon daughters, so that the purpose of removing radon daughters can be achieved by electrostatic dust removal.

Working principle of electrostatic field:

Taking the positive corona as an example, the needle-shaped electrode is connected to a positive potential and discharged at a high voltage (usually several thousand volts) to form a discharge electrode (corona electrode). The hexagonal metal tube is used as a dust collector and connected to a negative potential. An electrostatic field sufficient to ionize the gas is formed between the needle electrode and the hexagonal tubular electrode. When the dusty gas passes through the non-uniform electric field between the two electrodes, ionization occurs under the action of a strong electric field around the discharge electrode, forming gas ions and electrons and making them The dust particles are charged, and the radon progeny is attached to the dust or particles in the air, and the charged particles move to the dust collecting pole under the action of the electric field force and deposit on the dust collecting pole, so as to reduce the radon progeny concentration and purify the air.

Electrostatic fiber filter radon removal principle:

Electrostatic fibers are electrostatically charged and charged during the manufacturing process of filter fibers. Electrostatic fiber filter not only utilizes the filtration mechanisms of traditional air filtration materials such as sieving, inertial collision, interception, diffusion, and gravity, but also uses the Coulomb force of charged fibers to capture particles, so the filtration efficiency is improved and the resistance is reduced.

The utility model comprehensively utilizes the above two means, simplifies the process, improves the efficiency, saves energy and simplifies the control.

Compared with the prior art, the utility model has the remarkable advantages of:

1. Compact and simple structure: the utility model adopts a honeycomb single-zone electrostatic field, which makes the device compact in structure and occupies a small space. Compared with the double-zone electrostatic field, the thickness can be reduced by more than 10cm; in addition, the honeycomb single-zone electrostatic field increases The ventilation area is enlarged, and the effective ventilation area is 10% larger than that of the circular hole-shaped electrostatic field. Under the same ventilation volume, the volume of the device can be further reduced, and the ventilation resistance is small; finally, the honeycomb electrostatic field is easier to process than the circular tube electrostatic field , The honeycomb electrostatic field with the same power is more than 1/3 cheaper than the round hole electrostatic field.

2. Energy saving and high efficiency: the utility model replaces the dual-zone electrostatic field with a single-zone electrostatic field, and only needs to supply power to one electrostatic field, reducing power consumption by about 1/2; and only needs to control a single electric field, simplifying the control equipment, Improve control efficiency; In addition to the impact, inertia, diffusion and interception effects of the fibers, the electrostatic fibers used also have electrostatic effects, which make radon daughter aerosols more likely to agglomerate and then easily captured, improving the monomer filtration efficiency of the filter .

3. Easy maintenance: medium-efficiency electrostatic fiber filter is adopted, and the thickness is reduced by about 1/2 compared with the bag filter; it is convenient to make a track pulling method, which makes the replacement more convenient.

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

Description of drawings

Fig. 1 is a structural schematic diagram of the mobile radon removal device of the present invention.

Fig. 2 is a front view of the honeycomb electrostatic field in Fig. 1 .

In the figure, a housing 1, a roller 2, an air inlet 3, an air outlet 4, an air duct 5, a honeycomb electrostatic field 6, an electrostatic fiber filter 7, and a fan 8.

detailed description

As shown in Figure 1, the mobile radon removal device of the present utility model comprises a housing 1 and a roller 2 placed on the lower part of the housing 1, an air inlet 3 and an air outlet 4 are also provided on the housing 1, and the housing 1 also includes The air duct 5 communicates the air inlet 3 and the air outlet 4 inside the housing 1, and a honeycomb electrostatic field 6, an electrostatic fiber filter 7 and a fan are sequentially arranged in the air duct 5 along the airflow direction 8. Both the honeycomb electrostatic field 6 and the electrostatic fiber filter 7 are airtightly connected to the inner wall of the air duct 5 , and the outer wall of the outlet of the fan 8 is airtightly connected to the inner wall of the air duct 5 .

Preferably, the electrostatic fiber filter 7 is a medium-efficiency filter.

In addition to ensuring the filtering effect, the medium-efficiency filter is more important to ensure the electrostatic adsorption effect on radon daughters.

Preferably, the fan 8 is a cross-flow fan.

Under the action of the cross-flow fan, the air containing radon daughters enters the radon removal device from the air inlet at the bottom of the device, and flows into the honeycomb high-voltage electrostatic field. High-frequency discharge forms a corona layer and positive and negative electrodes, so that the positively charged radon progeny moves quickly to the negative electrode of the electrostatic field—the wall of the hexagonal tube, and is effectively adsorbed. After this purification, some radon daughters remain in the air. At this time, the air passes through the electrostatic fiber filter, and the electrostatic fiber causes the particles to be polarized. Even the uncharged particles can be captured, so that the charged radon Both the daughter body and the uncharged dust are adsorbed on the surface of the filter. The purified air flows into the room through the air outlet.

In the process of air circulation, radon daughters, inhalable particles, dust, fungi, bacteria and other microorganisms in the air are effectively removed to achieve the purpose of purifying the air; it is easy to use, and the mobile design makes it easy to move into the place that needs to be purified. Room; simple structure, small size, light weight; safe and reliable work, easy operation, long service life, convenient cleaning and maintenance. Not only is it beneficial to reduce radon daughter pollution and reduce the radiation dose received by relevant personnel, but also has an efficient killing and purification effect on bacteria, fungi and other microorganisms and inhalable particulate matter, which is conducive to the improvement and improvement of the overall air quality inside the building .

Fig. 2 is a front view of the honeycomb electrostatic field in Fig. 1 .

The radon-containing air flows through multiple hexagonal tubes in the honeycomb electrostatic field, and the needle-shaped electrode located in the center of the hexagonal tube discharges to the tube wall at high frequency to form a corona layer and positive and negative electrodes, and the radon daughters with positive charges It moves quickly to the wall of the hexagonal tube and is effectively adsorbed to remove part of the radon daughters. The air passing through the honeycomb electrostatic field flows through the electrostatic fiber filter, and the charged radon daughters and uncharged dust are absorbed by the filter.

Claims (3)

1. it is a kind of portable except radon device, including housing (1) and the roller (2) for being placed in housing (1) bottom, in the housing (1) On be additionally provided with air inlet (3) and air outlet (4), in addition to air channel (5), the air channel (5) is internal by air inlet in housing (1) (3) connected with air outlet (4), it is characterised in that：

In the air channel (5) cellular electrostatic field (6), electrostatic fibre filter (7) and wind are disposed with along airflow direction Machine (8), the cellular electrostatic field (6) and electrostatic fibre filter (7) with the air channel (5) inwall airtight connection, blower fan (8) outlet outer wall and air channel (5) inwall airtight connection.

2. it is according to claim 1 portable except radon device, it is characterised in that：During the electrostatic fibre filter (7) is Imitate filter.

3. it is according to claim 1 portable except radon device, it is characterised in that：The blower fan (8) is cross flow fan.