CN106345613A - Plasma filter screen device - Google Patents

Abstract

The invention is a plasma filter device, which includes a plasma module and a filter. A high-voltage electric field is formed in the plasma module to lift air to a plasma state and dissociate to form positive and negative ions. The filter is located at the outlet of the plasma module. Outside the wind side, it captures the positive and negative ions that come out with the airflow. Since the harmful substances in the air have been destroyed and dissociated to form positive and negative ions, they will no longer cause adverse effects on the human body, and the filter is installed inside the plasma module. In addition, the material attached to the filter is not affected by the electric field and no longer produces unwanted ozone or odor. Therefore, the present invention can achieve a high-efficiency air purification effect and prevent side effects at the same time.

Description

Plasma filter unit

technical field

The invention relates to a plasma filter device, which refers to a plasma filter device used in the field of air filtration.

Background technique

With the development of industry and the growth of population, there are more and more man-made harmful substances in the air. Therefore, the air can be effectively filtered to prevent harmful substances (such as allergens, dust mites, bacteria, viruses, toxic gas molecules, etc.) Air filter equipment (such as air cleaners, etc.) that are harmful to human health has become an indispensable article in life, and in order to achieve effective air filtration, the air filter equipment of the prior art has adopted many different means.

Please refer to Fig. 18 and Fig. 19 to show the electrostatic precipitator used in the air filter equipment, which includes two relatively parallel first filter screen 40, a second filter screen 41, a plurality of positive electrode wires 50, A plurality of negative electrode sheets 60 and a plurality of dust collecting plates 70, a positive electrode wire 50 is arranged between the two negative electrode sheets 60, and an electric field is generated by the positive electrode wire 50 and the negative electrode sheet 60. Generally speaking, the electric field strength of electrostatic dust collection About 5×10 ⁴ V/m to 2×10 ⁵ V/m (volt/meter), when the harmful substance 80 in the air passes through the electric field, it is charged by the electric field, and the charged substance 81 attracts each other due to the opposite sex The principle is to adsorb on the dust collecting plate 70, so as to filter out harmful substances in the air, so that the clean air is released from the second filter screen 41. However, electrostatic dust collection uses electrostatic force to adsorb the charged substance 81 on the dust collecting plate 70, but for harmful substances with large particle diameters, because of its large mass, the forward power is greater than the electrostatic force, so that the particles Harmful substances with larger diameters cannot be adsorbed on the dust collecting plate 70, resulting in difficult removal. Furthermore, please refer to Fig. 20, since the direction of the negative electrode sheet 60 is parallel to the direction of air flow, the area where the air passes through the electric field is small, which reduces the probability of harmful substances being charged, so some harmful substances cannot be collected by the dust collecting plate. 70 adsorbed and released in the air, resulting in poor dust collection effect.

Please refer to Fig. 21 for showing the plasma filter screen device used in the air filtration equipment, which has a first negative electrode plate 90, a second negative electrode plate 91, a positive electrode plate 92 and a filter screen 93, the positive electrode The plate 92 is arranged between the first and second negative electrode plates 90, 91, the positive electrode plate 92 and the first negative electrode plate 90 generate a first high-voltage electric field, and the positive electrode plate 92 and the second negative electrode plate 91 generate a first high-voltage electric field. Two high-voltage electric fields, the filter screen 93 is set in the second high-voltage electric field to charge static electricity. After the harmful substance 80 enters the first high-voltage electric field, the substance is promoted to a plasma state due to the high electric field intensity, so the molecular structure is destroyed and then dissociated. It is positive and negative ions, which are then adsorbed on the electrostatic filter screen 93 in the second high-voltage electric field, so as to filter out harmful substances in the air. Although the plasma filter device of the prior art can effectively destroy the molecular structure to achieve the effect of filtering air, yet the filter screen 93 is in the second high-voltage electric field for a long time, and the harmful substances adsorbed on the filter screen 93 are also in the second high-voltage electric field for a long time Among them, these harmful substances will produce unexpected sharp discharge under the action of the second high-voltage electric field, which may not only produce peculiar smell, but also increase the probability of ozone generation. When the ozone concentration reaches 0.1mg/m ³ , it will stimulate the respiratory tract, and ozone When the concentration reaches 2mg/ ^m , it may cause discomfort reactions such as headache and chest pain. Therefore, for the plasma filter device in the prior art, the generation of ozone is an uncontrollable side effect, which is inconvenient to use.

Contents of the invention

In view of this, the present invention improves the ozone generation of the plasma filter device in the prior art, and strengthens the air filtering function, which not only solves the problems in the prior art, but also further improves the air filtering effect.

In order to achieve the above-mentioned purpose of the invention, the technical means used in the present invention is to create a plasma filter device, which includes:

A first plasma module, which includes an outer frame, a first electrode net and a first electrode plate, the first electrode net and the first electrode plate are arranged at intervals and fixed on the outer frame, the first electrode net and A high-voltage electric field is formed between the first electrode plates, and the first plasma module has an air inlet side and an air outlet side;

A first filter screen is adjacently arranged outside the air outlet side of the first plasma module.

The advantage of the present invention is that, through the high-voltage electric field in the plasma module, the harmful substances in the passing air are promoted to the plasma state for dissociation and destruction, and then the positive and negative ions formed after being destroyed are collected through the first filter screen, It can effectively decompose and filter out allergens, dust mites, bacteria, viruses, and toxic gas molecules in the air that are harmful to the human body, so as to fully achieve the effect of air filtration, and because the first filter is set outside the high-voltage electric field, so The substances attached to the first filter will not be affected by the electric field, so no ozone or peculiar smell will be generated, so that the present invention not only has a high-efficiency air cleaning function, but also does not cause harmful side effects to the human body. Therefore, the present invention clearly has its practicality.

Description of drawings

Fig. 1 is a perspective view of the first embodiment of the present invention.

Fig. 2 is an exploded view of the first embodiment of the present invention.

Fig. 3 is a side sectional view of the first embodiment of the present invention in use.

FIG. 4 is a schematic diagram of the amplified electric field of the first embodiment of the present invention.

Fig. 5 is a perspective view of a second embodiment of the present invention.

Fig. 6 is an exploded view of the second embodiment of the present invention.

Fig. 7 is a side sectional view of the second embodiment of the present invention in use.

Fig. 8 is an exploded view of a third embodiment of the present invention.

Fig. 9 is a side sectional view of the third embodiment of the present invention in use.

Fig. 10 is an exploded view of a fourth embodiment of the present invention.

Fig. 11 is an exploded view of a fifth embodiment of the present invention.

Fig. 12 is a side sectional view of the fifth embodiment of the present invention in use.

Fig. 13 is an exploded view of a sixth embodiment of the present invention.

Fig. 14 is an enlarged cross-sectional view of a part of the structure of the second embodiment of the present invention.

Fig. 15 is an enlarged perspective view of some components of the present invention.

Fig. 16 is an enlarged cross-sectional view of part of the structure of the seventh embodiment of the present invention.

Fig. 17 is an enlarged cross-sectional view of a part of the structure of the second embodiment of the present invention.

Fig. 18 is an exploded view of components of the prior art.

Fig. 19 is a side sectional view of an implementation state of the prior art.

Fig. 20 is a schematic diagram of an amplified electric field in the prior art.

Fig. 21 is a side sectional view of another prior art implementation state.

detailed description

In the following, the technical means adopted by the present invention to achieve the intended purpose of the invention will be further described in conjunction with the accompanying drawings and the embodiments of the present invention.

Referring to FIGS. 1 to 3 , in an embodiment, the plasma filter device of the present invention includes a first plasma module 10 and a first filter 20 .

The first plasma module 10 includes an outer frame 11, a first electrode net 12 and a first electrode plate 13, the first electrode net 12 and the first electrode plate 13 are arranged at intervals and fixed on the outer frame 11, the second A high-voltage electric field is formed between an electrode network 12 and the first electrode plate 13, and in one embodiment, the strength of the high-voltage electric field is 7×10 ⁵ V/m to 3×10 ⁶ V/m (volts/meter); In one embodiment, the first electrode network 12 is electrically connected to the positive pole of a high-voltage power supply, and the first electrode plate 13 is electrically connected to the negative pole of the high-voltage power supply; in one embodiment, the first electrode network 12 is connected to The voltage can be 6.5 to 7.5kV (kilovolts), and the distance between the first electrode grid 12 and the first electrode plate 13 can be 10 to 20mm (millimeters). The first plasma module 10 has an air inlet side and an air outlet side. In one embodiment, the first electrode plate 13 is adjacent to the air inlet side, and the first electrode grid 12 is adjacent to the air outlet side. In one embodiment, the first electrode plate 13 straddles the air inlet side so that the air flow direction is perpendicular to the first electrode plate 13 .

The first filter 20 is disposed adjacently outside the air outlet side of the first plasma module 10 , and the first filter 20 is an electrostatically treated filter.

Please refer to shown in Figure 3, when the air enters from the wind-intake side of the first plasma module 10, harmful substances 30 also enter the first plasma module 10 thereupon, because the high-voltage electric field strength in the first plasma module 10 is enough to make the substances Promote to the plasma state, so the structure of the harmful substance 30 is destroyed and dissociated into positive and negative ions 31. If it is a dust mite, bacteria and other organisms, its cell wall will be broken, so it has lost its original harmful ability to the human body. For molecules with peculiar smell or harmful to the human body, their molecular bonds are also destroyed and lose their original characteristics. Therefore, the air passing through the air outlet side of the first plasma module 10 is harmless and odorless to the human body. , Negative ions 31 will be adsorbed on the first filter screen 20 when they enter the first filter screen 20 with the airflow, especially when the first filter screen 20 has been electrostatically treated, the electrostatically charged first filter screen 20 can absorb positive and negative ions more 31. Therefore, the positive and negative ions 31 after the dissociation of harmful substances 30 have been filtered out in the air flowing out through the first filter screen 20, so the effect of air purification can be achieved. Further, please refer to FIG. 4, since the first electrode plate 13 straddles the wind inlet side and is perpendicular to the air flow direction, so the contact area between the inflowing air and the electric field is increased, and the time for harmful substances 30 to pass through the electric field is increased. , can ensure that all passing harmful substances 30 are destroyed.

5 to 7, in another embodiment, the first plasma module 10A of the plasma filter device of the present invention includes an outer frame 11A, a first electrode net 12A, a first electrode plate 13A and A second electrode plate 14A, the second electrode plate 14A is arranged parallel to the first electrode plate 13A, the first electrode net 12A is arranged between the first electrode plate 13A and the second electrode plate 14A, the first electrode net 12A and the second electrode net 12A A high voltage electric field is formed between the electrode plates 13A, and a high voltage electric field is also formed between the first electrode network 12A and the second electrode plate 14A. The arrangement of the double high voltage electric field can further ensure that all passing harmful substances are destroyed. In one embodiment, the second electrode plate 14A straddles the air outlet side.

8 and 9, in another embodiment, the plasma filter device of the present invention has a first plasma module 10B and a second plasma module 100B, the first plasma module 10B and the second plasma module 100B Stacked in parallel, the air inlet side of the first plasma module 10B is docked with the air outlet side of the second plasma module 100B, and each plasma module 10B, 100B respectively includes an outer frame 11B, a first electrode grid 12B and a first electrode plate 13B, a high-voltage electric field is formed between the first electrode grid 12B and the first electrode plate 13B in each plasma module 10B, 100B, so the first plasma module 10B and the second plasma module 100B provide two high-voltage electric fields in total, double high-voltage The setting of the electric field can ensure that all passing harmful substances are destroyed.

Please refer to FIG. 10, in another embodiment, the plasma filter device of the present invention has a first plasma module 10C and a second plasma module 100C, and the first plasma module 10C and the second plasma module 100C are stacked in parallel Each plasma module 10C, 100C includes an outer frame 11C, a first electrode net 12C, a first electrode plate 13C and a second electrode plate 14C, in each plasma module 10C, 100C, the first electrode net 12C is located on Between the first electrode plate 13C and the second electrode plate 14C, a high-voltage electric field is formed between the first electrode network 12C and the first electrode plate 13C, and a high-voltage electric field is also formed between the first electrode network 12C and the second electrode plate 14C. High-voltage electric fields, so each plasma module 10C, 100C provides two high-voltage electric fields respectively, so there are four high-voltage electric fields in total, so as to more effectively ensure that all passing harmful substances are destroyed.

11 to 13, in another embodiment, the plasma filter device of the present invention has a first filter 20 and a second filter 200, the first filter 20 is located in the first plasma module 10, 10A outside the air outlet side and the second filter screen 200 is arranged outside the air inlet side of the first plasma module 10, 10A, therefore, the air will first pass through the second filter screen 200 and then enter the first plasma module 10 , 10A, and then pass through the first filter 20, so the larger particles of harmful substances in the air will be blocked by the second filter 200 to further enhance the filtering effect. Further, if there is a first plasma module and a second plasma module, the second filter screen 200 is arranged outside the air inlet side of the second plasma module, and the first filter screen is arranged at the outlet of the first plasma module. Outside the wind side.

In summary, the plasma filter device of the present invention may include one or more plasma filter modules, one or more filters, and the plasma filter module may also include one or two electrode plates to form one or two Each high-voltage electric field can achieve the effect of effectively filtering the air by using the high-voltage electric field to dissociate and destroy harmful substances in the plasma state promoted by the high-voltage electric field, and then using the filter to collect them.

Further, please refer to FIG. 6 and FIG. 14. In one embodiment, the current is introduced into the first electrode plate 13A and the second electrode plate 13A through the two pads 112A provided on the conductive plate 111A. The first electrode The plate 13A, the second electrode plate 14A and the spacer 112A form a tight fit so that the surface of the spacer 112A is electrically connected to the surface of the first electrode plate 13A and the second electrode plate 14A, so as to improve the conduction effect. In another embodiment, as shown in FIG. 15 and FIG. 16 , the end of the conductive sheet 111A is bent to form a convex portion 112A, and the convex portion 112A forms an electrical connection with the surface of the first electrode plate 13A and the second electrode plate 14A. connection to enhance the conduction effect.

Furthermore, please refer to FIG. 6 and FIG. 17 , the outer frame 11A is concavely formed with a plurality of grooves 113A, the first electrode network 12A is wound in the grooves 113A and both ends are connected to the outer frame 11A fixed, and in order to prevent the first electrode net 12A from swaying up and down due to the passage of air flow, resulting in contact with the first electrode plate 13A and short circuit, so a spring 114A is provided at the junction of the two ends of the first electrode net 12 and the outer frame 11A, The first electrode net 12A is stretched and fixed. Even if there is air flow, the impact force brought by the air flow can be absorbed by the expansion and contraction of the spring 114A, so as to ensure that the first electrode net 12 does not easily shake up and down. Moreover, since the tip discharge may cause ozone generation or other unfavorable phenomena, in order to prevent the tip discharge from forming at the end of the first electrode network 12 , an insulating protective sheath 115A can be sleeved on the end of the first electrode network 12 .

The above description is only an embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with the embodiment, it is not intended to limit the present invention. Any person skilled in the art shall not Within the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but all the content that does not deviate from the technical solution of the present invention, the technical essence of the present invention is Any simple modifications, equivalent changes and modifications made in the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. a kind of plasma filter net device is it is characterised in that include:

One first plasma module, it includes a housing, a first electrode net and a first electrode plate, described first electrode net And first electrode plate is set in distance and is fixed on housing, between first electrode net and first electrode plate, form a high-tension electricity , described first plasma module has an inlet air side and an air side；

One first filter screen, it is disposed adjacent outside the air side of described first plasma module.

2. plasma filter net device as claimed in claim 1 is it is characterised in that described first plasma module comprises further There is a second electrode plate, described second electrode plate is be arranged in parallel with described first electrode plate, and described first electrode net is located at described Between first electrode plate and described second electrode plate, between described first electrode net and described second electrode plate, also form a high pressure Electric field.

3. plasma filter net device as claimed in claim 1 or 2 is it is characterised in that further include one second plasma Module, described second plasma module and described first plasma module have identical structure and stack in parallel stacks and put first etc. Setting is docked with the air side of the second plasma module in the inlet air side of ion module.

4. plasma filter net device as claimed in claim 1 or 2 is it is characterised in that further include one second filter screen, institute State outside the inlet air side that the second filter screen is arranged at described first plasma module.

5. plasma filter net device as claimed in claim 3 is it is characterised in that further includeing one second filter screen, described Second filter screen is arranged at outside the inlet air side of described second plasma module.

6. plasma filter net device as claimed in claim 1 or 2 is it is characterised in that described first filter screen is electrostatically treated Static electrification filter screen.

7. plasma filter net device as claimed in claim 1 or 2 it is characterised in that described high voltage electric field intensity be 7 × 10⁵V/m to 3 × 10⁶v/m.

8. plasma filter net device as claimed in claim 2 is it is characterised in that described housing is provided with a conducting strip and two pads Piece, described two pads tightly fit in respectively and are electrically connected with being formed between conducting strip and first electrode plate, second electrode plate.

9. plasma filter net device as claimed in claim 2 is it is characterised in that described housing is provided with a conducting strip, described leads The end of electric piece is bent to form protuberance and is formed with the surface of first electrode plate and second electrode plate and electrically connect.

10. plasma filter net device as claimed in claim 1 or 2 it is characterised in that described first electrode plate be across described Air side.