CN112122002A

CN112122002A - Ion wind coagulation auxiliary dust collecting device

Info

Publication number: CN112122002A
Application number: CN202010866942.3A
Authority: CN
Inventors: 张原�; 王应泉; 陈建芬
Original assignee: Ningbo Runner Industrial Corp
Current assignee: Ningbo Runner Industrial Corp
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-12-25

Abstract

The invention discloses an ion wind coagulation auxiliary dust collection device, which comprises a shell, an ion wind coagulation device, a filter and a detection device, wherein the ion wind coagulation device comprises a conductive rod and an electrode on the conductive rod, and an ion generator is attached to the electrode; the number of the electrodes is at least two, and the polarities of the adjacent electrodes are different; and the charged ion wind generated by the ion generator is subjected to ion coagulation in the ion wind coagulation device and then is filtered by a filter and blown out. The invention can improve the one-time filtering efficiency. The grade of the filter used can be reduced without reducing the filtering effect, thereby reducing the cost. The wind resistance is reduced after the filter level is reduced, and the noise of the air purifier can be reduced. The service life of the filter can be prolonged (by 200%), the feedback current control output voltage can control the high-voltage output device in an allowable state interval, and the phenomena of detonation, ignition and the like are reduced.

Description

Ion wind coagulation auxiliary dust collecting device

Technical Field

The invention relates to an ion wind condensation and auxiliary dust collection device.

Background

The air purifier is used as a device capable of improving air cleanliness, and the purpose of purifying air is achieved by absorbing, decomposing or converting various air pollutants through an internal filtering unit.

The mainstream particulate matter filtering technology of the air purifier is as follows: physical interception (using HEPA) and high-voltage electrostatic dust collection technology, wherein the particle size of the particles and the filtering efficiency are in direct proportion in the two technologies, namely the larger the particle size of the particles is, the better the filtering effect is. In order to improve the capture efficiency of the filter unit for the fine particle pollutants, a coalescing module is usually disposed on the air inlet surface of the dust filter to ensure that the fine particle pollutants in the air entering the dust filter can be coalesced into large particles and thus can be easily captured by the dust filter. However, since the internal space of the air cleaner is limited, the time for the dust-containing air to flow from the coalescing module to the dust filter is very short, and although the fine dust particles are processed by the coalescing module, a certain time is required for the coalescing process of the fine dust particles, so that most of the fine particle pollutants are not completely coalesced into large particles when entering the dust filter and then penetrate through the dust filter, thereby seriously affecting the filtering efficiency of the dust filter and failing to further improve the cleaning effect of the air cleaner; commonly used coagulation techniques include electrocoagulation, sound coagulation, magnetic coagulation, thermal coagulation and the like, wherein coagulation space or turbulent flow is required for stirring airflow to increase coagulation effect except for sound coagulation, and the space required for coagulation is too large, so that the product volume is greatly increased and is not accepted by the market; the problem of acoustic coagulation and the existence of noise and acoustic resonance is not accepted.

Problems and disadvantages of the prior art:

1. when air is purified, the particle size of particulate pollutants is too small to be easily captured;

2. physical interception (HEPA) technology increases the filtration level of the filter, increasing wind resistance and cost in order to improve the capture efficiency of small particle size contaminants.

3. The high-voltage electrostatic dust collection technology increases the charging time and the capturing time, reduces the wind speed and increases the volume of the air purifier in order to improve the capturing efficiency of small-particle-size pollutants.

4. The coagulation space occupies a large volume, and special fluid disturbance needs to be matched to increase the coagulation effect.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide an ion wind condensation and auxiliary dust collection device.

The invention is realized by the following technical scheme:

an ion wind coagulation auxiliary dust collection device comprises a shell, an ion wind coagulation device, a filter and a detection device, wherein the ion wind coagulation device comprises a conductive rod and an electrode on the conductive rod, and an ion generator is attached to the electrode; the number of the electrodes is at least two, and the polarities of the adjacent electrodes are different; and the charged ion wind generated by the ion generator is subjected to ion coagulation in the ion wind coagulation device and then is filtered by a filter and blown out.

Preferably, the conducting rod is wrapped by an insulating skin, and the ion generators are arranged in an array.

Preferably, the aerosol moves in a direction in which the electrodes extend, the electrical polarity of the ionic wind generator connections between adjacent electrodes being opposite and overlapping in pose position as seen in the direction of aerosol movement.

Preferably, the included angle between the ion generator placing angle and the aerosol movement direction is larger than 45 degrees.

Preferably, the spacing between ionizers on the same electrode is between 1-50 mm.

Preferably, the spacing between adjacent electrodes is 2-50 mm.

Preferably, the length of the conductive rod is 3-50 mm.

Preferably, the filter is an electrostatic precipitation filter, a fibrous media filter, an electret filter or a paper filter.

Preferably, the detection means is for detecting an electrical signal between adjacent electrodes.

The invention has the following beneficial effects: under the condition of the same level of filter, the one-time filtering efficiency can be improved. The grade of the filter used can be reduced without reducing the filtering effect, thereby reducing the cost. The wind resistance is reduced after the filter level is reduced, and the noise of the air purifier can be reduced. Test data show that when HEPA of H13 filtering grade is used, the service life of the filter can be prolonged (by 200%), the feedback current control output voltage can control the high-voltage output device in an allowable state interval, and phenomena of detonation, ignition and the like are reduced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic representation of a single electrode of the present invention.

Fig. 2 is a schematic view of the electrode distribution of the present invention.

Fig. 3 is a schematic diagram of the present invention.

Fig. 4 is an exploded view of an ion wind according to the present invention.

In the figure: 1. an electrode; 2. an ion generator; 3. an ion wind coagulation device; 4. a first electrode; 5. a second electrode; 6. and (3) a filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

Referring to the attached drawings 1-3 of the specification, the ion wind coalescence auxiliary dust collecting device comprises a shell, an ion wind coalescence device, a filter and a detection device, wherein the ion wind coalescence device comprises a conductive rod and an electrode on the conductive rod, and an ion generator is attached to the electrode; the number of the electrodes is at least two, and the polarities of the adjacent electrodes are different (as shown in the specification and figure 3, the first electrode and the second electrode have different polarities); and the charged ion wind generated by the ion generator is subjected to ion coagulation in the ion wind coagulation device and then is filtered by a filter and blown out. The conducting rod is wrapped with an insulating skin.

Referring to the attached fig. 1-4 of the specification, the ion generators on the electrodes are distributed in an array, the aerosol moves along the extending direction of the electrodes, and the ion wind generator connections between the adjacent electrodes are opposite in electric property and are overlapped in arrangement position when viewed in the aerosol moving direction. The angle of the ion generator is larger than 45 degrees (corresponding to the angle between A1 and B1 in FIG. 4) with respect to the moving direction of the aerosol. The included angle between the arrangement direction of the ion generators and the direction of the first ion generator array layer is not more than 45 degrees (corresponding to the included angle between A1 and C1 in figure 4), and the interval between the ion generators on the same electrode is between 1 and 50 mm. The distance between adjacent electrodes is 2-50 mm. The length of the conductive rod is 3-50 mm. The filter is an electrostatic dust collection filter, a fiber medium filter, an electret filter or a paper filter. The detection device is used for detecting an electric signal between adjacent electrodes. The electric signals are frequency, current, voltage, resistance and the like, the electric conductivity of air between the positive electrode and the negative electrode is detected to feed back the output states of the positive high-voltage electrode and the negative high-voltage electrode, the output states of the positive high-voltage electrode and the negative high-voltage electrode are adjusted by a main control board of the air purifier, the coagulation effect is ensured, and the high-voltage electrodes are prevented from being ignited. Generally, a metal net is arranged on the air outlet surface of the filter and is connected with a ground wire. The detection device can be a micro-current feedback device, and the output voltage of the output of the two electrodes is adjusted according to the feedback current between the two electrodes; the feedback current is controlled within the range of 0.1-1.0 mA, and the output voltage ratio between the two electrodes is 1: 1-1: 3, or less.

Referring to the specification and the attached figure 4, due to the opposite polarities of the adjacent electrodes, the moving directions of ion generators on the electrodes for ionizing to generate ion back ions are A1 and A2 respectively, A1 and A2 can be decomposed into B1 and B2 which move relatively and C1 and C2 which are in the same direction in the orthogonal direction, the directions of B1 and B2 are perpendicular to the moving direction of main air (main air direction in an air flue), stirring motion is provided, the contact probability of different-polarity particles in A1 and A2 is increased, and the coagulation effect is improved; the directions and directions of the C1 and the C2 are opposite, so that the residence time of air particles in the coagulation module on the ion wind moving path is increased, the charging time and effect of A are increased, the stirring time of B is increased, and the coagulation effect is further improved.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The auxiliary dust collecting device is characterized by comprising a shell, an ion wind coagulation device, a filter and a detection device, wherein the ion wind coagulation device comprises a conductive rod and an electrode on the conductive rod, and an ion generator is attached to the electrode; the number of the electrodes is at least two, and the polarities of the adjacent electrodes are different; and the charged ion wind generated by the ion generator is subjected to ion coagulation in the ion wind coagulation device and then is filtered by a filter and blown out.

2. The ionic wind coagulation and auxiliary dust collection device according to claim 1, wherein the conductive rods are wrapped with insulating skins, and the ionizers are arranged in an array.

3. The ionic wind coagulation and secondary dust collection device of claim 2, wherein the aerosol moves along the direction in which the electrodes extend, and the ionic wind generator connections between adjacent electrodes are of opposite electrical polarity and overlap in their positions when viewed in the direction of aerosol movement.

4. The ionic wind-coagulation auxiliary dust-collecting device of claim 3, wherein the included angle between the ion generator placing angle and the aerosol movement direction is greater than 45 °.

5. The ionic wind-coagulation auxiliary dust-collection device according to claim 4, wherein the interval between the ionizers on the same electrode is between 1-50 mm.

6. The ionic wind coagulation and secondary dust collection device of claim 5, wherein the spacing between adjacent electrodes is 2-50 mm.

7. The ionic wind condensation auxiliary dust collection device according to claim 6, wherein the length of the conductive rod is 3-50 mm.

8. The ionic windcoagulation and secondary collection device of any one of claims 1-7, wherein the filter is an electrostatic collection filter, a fibrous media filter, an electret filter, or a paper filter.

9. The ionic wind-coagulation and auxiliary dust-collection device according to any one of claims 1 to 7, wherein the detection means is for detecting an electrical signal between adjacent electrodes.