Electric purification unit and electric purification device

Abstract

The invention relates to the technical field of electric purification and dust collection, and discloses an electric purification unit and an electric purification device.The electric purification unit comprises a shell, a first air passing opening is formed in the first face of the shell, a second air passing opening is formed in the second face of the shell, the first face right faces the second face, and the first air passing opening and the second air passing opening are staggered; the first purification assembly is arranged in the shell and comprises a cylindrical first dust collection net and a first discharge electrode arranged in the first dust collection net, and the inner side of the first dust collection net communicates with the first air passing opening; the second purification assembly is arranged in the shell and comprises a cylindrical second dust collection net and a second discharge electrode arranged in the second dust collection net, the inner side of the second dust collection net communicates with the second air passing opening, the first discharge electrode is suitable for being connected with one of the negative voltage and the positive voltage, and the second discharge electrode is suitable for being connected with the other one of the negative voltage and the positive voltage; according to the invention, the purification efficiency of ultrafine particles can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric purification and dust collection, and in particular to an electric purification unit and an electric purification device. Background Art

[0002] There is a solution of dust removal through electric purification in the related art. The principle of electric purification is to first charge the particles through discharge, and then the charged particles are collected on the dust collecting electrode under the action of the electric field. Since the electric field force on the ultrafine particles after being charged is small, it is difficult to be adsorbed to the collecting electrode. In order to improve the purification efficiency of ultrafine particles, it is necessary to increase the voltage. Therefore, the electric purification device of the related art has the problem of low purification efficiency and high energy consumption for ultrafine particles. Summary of the invention

[0003] In view of this, the present invention provides an electric purification unit and an electric purification device to solve the problems of low ultrafine particle purification efficiency and high energy consumption of the electric purification device in the related art.

[0004] In a first aspect, the present invention provides an electric purification unit, comprising: The housing has a first air outlet on its first surface and a second air outlet on its second surface, the first surface is directly opposite to the second surface, and the first air outlet is offset from the second air outlet; A first purification component is disposed in the housing, comprising a first dust collecting net in a cylindrical shape and a first discharge electrode disposed in the first dust collecting net, wherein the inner side of the first dust collecting net is connected to the first air outlet; The second purification component is arranged in the shell, including a second cylindrical dust collecting net and a second discharge electrode arranged in the second dust collecting net, the inner side of the second dust collecting net is connected to the second air outlet, the first discharge electrode is suitable for connecting to one of a negative voltage and a positive voltage, and the second discharge electrode is suitable for connecting to the other of a negative voltage and a positive voltage.

[0005] Beneficial effect: the inner side of the first dust collecting net is connected to the first air outlet, the first discharge electrode is arranged in the first dust collecting net, and the first discharge electrode is connected to one of the negative voltage and the positive voltage, so that the air enters the inner side of the first dust collecting net through the first air outlet, and the first discharge electrode discharges the air entering the first dust collecting net, so that the particles in the air are charged, and the large particles are directly collected on the first dust collecting net after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and pass through the first dust collecting net in the radial direction and flow toward the adjacent second dust collecting net, and at the same time Uncharged ultrafine particles pass through the first dust collecting net in the radial direction and flow toward the adjacent second dust collecting net. Since a second discharge electrode is provided on the inner side of the second dust collecting net, and the second discharge electrode is connected to the other of a negative voltage and a positive voltage, the discharge of the second discharge electrode will charge the uncharged ultrafine particles, and condense and combine with the charged ultrafine particles passing through the first dust collecting net to form larger particles. The condensed large particles will be recharged in the second dust collecting net and collected on the second dust collecting net, and the purified air can flow out from the second air outlet along the axial direction of the second dust collecting net. Therefore, the electric purification unit can improve the purification efficiency of ultrafine particles, and since the first discharge electrode is provided on the inner side of the first dust collecting net and the second discharge electrode is provided on the inner side of the second dust collecting net, the discharge voltage of the first discharge electrode and the second discharge electrode can be reduced, thereby achieving efficient dust removal at a lower voltage, thereby reducing energy consumption and operating costs.

[0006] In an optional embodiment, the first purification component includes a row of the first dust collecting nets and the first discharge electrodes arranged in a one-to-one correspondence with the first dust collecting nets, and the second purification component includes a row of the second dust collecting nets and the second discharge electrodes arranged in a one-to-one correspondence with the second dust collecting nets.

[0007] Beneficial effect: The first purification component includes a row of the first dust collecting nets and the first discharge electrodes arranged in a one-to-one correspondence with the first dust collecting nets, so the first discharge electrodes in a row of the first dust collecting nets can discharge at the same time, the second purification component includes a row of the second dust collecting nets and the second discharge electrodes arranged in a one-to-one correspondence with the second dust collecting nets, and the second discharge electrodes in a row of the second dust collecting nets can discharge at the same time, thereby improving the purification efficiency of the air and improving the purification efficiency of ultrafine particles.

[0008] In an optional embodiment, the first purification component further includes a first conductive member, the first conductive member is connected to the first discharge electrodes in a row of the first dust collecting nets, and the first conductive member is suitable for connecting to one of a negative voltage and a positive voltage.

[0009] Beneficial effect: By setting the first conductive member, the first conductive member is connected to the first discharge electrodes in a row of the first dust collecting nets, and the first conductive member is conductively connected to multiple first discharge electrodes at the same time. Therefore, it is only necessary to connect the first conductive member to one of the negative voltage and the positive voltage, and there is no need to connect each first discharge electrode to the power supply respectively, which makes it easier to connect each first discharge electrode to power at the same time.

[0010] In an optional embodiment, the second purification component further includes a second conductive member, which is connected to the second discharge electrodes in a row of the second dust collecting nets, and the second conductive member is suitable for connecting to the other of a negative voltage and a positive voltage.

[0011] Beneficial effect: By setting the second conductive member, the second conductive member is connected to the second discharge electrodes in a row of the second dust collecting nets, and the second conductive member is conductively connected to multiple second discharge electrodes at the same time. Therefore, it is only necessary to connect the second conductive member to the other of the negative voltage and the positive voltage, and there is no need to connect each second discharge electrode to the power supply respectively, which makes it easier to connect each second discharge electrode to power at the same time.

[0012] In an optional embodiment, the electric purification unit includes multiple rows of the first purification components and multiple rows of the second purification components, and the first purification components and the second purification components are alternately arranged in sequence.

[0013] Beneficial effect: The electric purification unit includes multiple rows of first purification components and second purification components, each row of first purification components corresponds to a row of first air outlets, and each row of second purification components corresponds to a row of second air outlets. Therefore, a second purification component is arranged on one side or both sides of a row of first purification components, and air enters each first dust collecting net through the first air outlet. The first discharge electrodes in each first dust collecting net discharge at the same time, so that the particles in the air are charged. The large particles are directly collected on the first dust collecting net after being charged, and the charged ultrafine particles cannot be collected due to the small attraction. , passing through the first dust collecting net to the left or right in the radial direction, and at the same time, uncharged ultrafine particles passing through the first dust collecting net to the left or right in the radial direction, flowing to the second dust collecting net, and the second discharge electrodes in each second dust collecting net discharge at the same time. The discharge of the second discharge electrode will charge the uncharged ultrafine particles, and condense and combine with the charged ultrafine particles passing through the first dust collecting net to form larger particles. The condensed large particles will be recharged in the second dust collecting net and collected on the second dust collecting net. The purified air can flow out from the second air outlet along the axial direction of the second dust collecting net. The electric purification unit includes multiple rows of the first purification components and multiple rows of the second purification components, and the first purification components and the second purification components are alternately arranged in sequence, which can further improve the purification efficiency.

[0014] In an optional embodiment, the outer shell includes an outer frame and an inner frame, the inner frame is buckled on the outer frame, the inner frame is provided with the first air outlet, the outer frame is provided with the second air outlet, multiple rows of the first purification components are provided on the outer frame, and multiple rows of the second purification components are provided on the inner frame.

[0015] Beneficial effect: During processing, the outer frame and the inner frame are processed separately, and then multiple rows of first purification components are arranged as a whole on the outer shell, and multiple rows of second purification components are arranged as a whole on the inner frame, and then the inner frame is buckled on the outer frame to form the electric purification unit, which is convenient for the assembly of the electric purification unit. At the same time, since the first purification component is arranged on the outer frame and the second purification component is arranged on the inner frame, it is convenient to connect the first discharge electrode and the second discharge electrode to the power supply respectively.

[0016] In an optional embodiment, the outer frame is provided with a first limiting frame corresponding one-to-one to the first dust collecting net, and the first dust collecting net is arranged in the first limiting frame.

[0017] Beneficial effect: By setting the first limiting frame on the outer frame, each first dust collecting net can be installed in the first limiting frame to fix the first dust collecting net on the outer frame, which is convenient for installing the first dust collecting net.

[0018] In an optional embodiment, the inner frame is provided with a second limiting frame corresponding one-to-one to the second dust collecting net, and the second dust collecting net is arranged in the second limiting frame.

[0019] Beneficial effect: By setting the first limiting frame in the inner frame, each second dust collecting net can be installed in the first limiting frame to fix the second dust collecting net in the inner frame, which is convenient for installing the second dust collecting net.

[0020] In an optional embodiment, the outer frame includes a bottom plate and a first enclosure plate arranged at the edge of the bottom plate, and the inner frame includes a top plate and a second enclosure plate protruding from the top plate, the top plate abuts against the first enclosure plate, and the second enclosure plate is embedded in the inner side of the first enclosure plate.

[0021] Beneficial effect: The outer frame includes a bottom plate and a first enclosure plate arranged at the edge of the bottom plate, the inner frame includes a top plate and a second enclosure plate protruding from the top plate, and the second enclosure plate is embedded in the inner side of the first enclosure plate. Therefore, after the outer frame and the inner frame are assembled, the first purification component and the second purification component are enclosed, which is safer.

[0022] In the second aspect, the present invention also provides an electric purification device, comprising at least two of the electric purification units, at least two of the electric purification units are stacked, and the first air outlet of one of the two adjacent electric purification units is connected to the second air outlet or the first air outlet of the other electric purification unit.

[0023] Beneficial effect: The electric purification device includes at least two electric purification units, and the first air outlet of one of the two adjacent electric purification units is connected to the second air outlet or the first air outlet of the other electric purification unit. Therefore, after the air is purified by one of the electric purification units, it will enter the adjacent electric purification unit for purification again, which can improve the purification efficiency of the air and the purification efficiency of ultrafine particles.

[0024] In an optional embodiment, two adjacent electrical purification units are symmetrically arranged.

[0025] Beneficial effect: The electric purification device comprises at least two electric purification units, and two adjacent electric purification units are symmetrically arranged. When the electric purification device is working, air enters the second dust collecting net of the uppermost electric purification unit through the second air outlet, and the second discharge electrode discharges the air entering the second dust collecting net to charge the particles in the air. The large particles are directly collected on the second dust collecting net after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and pass through the second dust collecting net in the radial direction and flow toward the adjacent first dust collecting net. At the same time, uncharged ultrafine particles also pass through the second dust collecting net in the radial direction and flow toward the adjacent first dust collecting net. The discharge of the first discharge electrode will cause the uncharged ultrafine particles to be charged, and will agglomerate with the charged ultrafine particles passing through the second dust collecting net to form larger particles. The agglomerated large particles will be recharged in the first dust collecting net and collected on the first dust collecting net. The charged ultrafine particles not collected by the first dust collecting net and the uncharged agglomerated large particles will flow out from the first air outlet along the axial direction of the first dust collecting net and enter the lower electric purification unit for further purification, thereby improving the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a schematic diagram of an electric purification unit according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the first purification component being assembled on the outer frame; Figure 3 An exploded view of the outer frame and the first purification component; Figure 4 It is a schematic diagram of the second purification component after being assembled on the inner frame; Figure 5 is an exploded view of the inner frame and the second purification component; Figure 6 is a schematic diagram of an electric purification device according to an embodiment of the present invention; Figure 7 for Figure 6 An exploded view of the electrical purification device shown; Figure 8 for Figure 6 A cross-sectional view of the electrical purification device shown; Fig. 9 The figure is a schematic diagram of an electric purification device according to an embodiment of the present invention.

[0028] Description of reference numerals: 1. Inner frame; 101. First air outlet; 102. Second limiting frame; 103. Top plate; 104. Second enclosure; 2. Outer frame; 201. Second air outlet; 202. First limiting frame; 203. Bottom plate; 204. First enclosure; 3. First purification component; 301. First dust collecting net; 302. First discharge electrode; 303. First conductive member; 4. Second purification component; 401. Second dust collecting net; 402. Second discharge electrode; 403. Second conductive member. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] There is a solution of dust removal through electric purification in the related art. The principle of electric purification is to first charge the particles through discharge, and then the charged particles are collected on the dust collecting electrode under the action of the electric field. Since the electric field force on the ultrafine particles after being charged is small, it is difficult to be adsorbed to the collecting electrode. In order to improve the purification efficiency of ultrafine particles, it is necessary to increase the voltage. Therefore, the electric purification device of the related art has the problem of low purification efficiency and high energy consumption for ultrafine particles.

[0031] Combine the following Figures 1 to 9 , describing an embodiment of the present invention.

[0032] According to an embodiment of the present invention, on the one hand, an electric purification unit is provided, including a housing, a first purification component 3 and a second purification component 4 .

[0033] Among them, a first air outlet 101 is provided on the first surface of the shell, and a second air outlet 201 is provided on the second surface. The first surface is opposite to the second surface, and the first air outlet 101 is offset from the second air outlet 201; a first purification component 3 is arranged in the shell, including a first cylindrical dust collecting net 301 and a first discharge electrode 302 arranged in the first dust collecting net 301, and the inner side of the first dust collecting net 301 is connected to the first air outlet 101; a second purification component 4 is arranged in the shell, including a second cylindrical dust collecting net 401 and a second discharge electrode 402 arranged in the second dust collecting net 401, and the inner side of the second dust collecting net 401 is connected to the second air outlet 201, the first discharge electrode 302 is suitable for connecting to one of a negative voltage and a positive voltage, and the second discharge electrode 402 is suitable for connecting to the other of a negative voltage and a positive voltage.

[0034] In this embodiment, the inner side of the first dust collecting net 301 is connected to the first air outlet 101, and the first discharge electrode 302 is arranged in the first dust collecting net 301. The first discharge electrode 302 is connected to one of a negative voltage and a positive voltage. Therefore, air enters the inner side of the first dust collecting net 301 through the first air outlet 101. The first discharge electrode 302 discharges the air entering the first dust collecting net 301, so that the particles in the air are charged. The large particles are directly collected on the first dust collecting net 301 after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and pass through the first dust collecting net 301 in the radial direction and flow toward the adjacent second dust collecting net 401. There are also uncharged ultrafine particles that pass through the first dust collecting net 301 in the radial direction and flow toward the adjacent second dust collecting net 401. Since a second discharge electrode 402 is provided on the inner side of the second dust collecting net 401, and the second discharge electrode 402 is connected to the other of a negative voltage and a positive voltage, the discharge of the second discharge electrode 402 will cause the uncharged ultrafine particles to be charged, and condense and combine with the charged ultrafine particles that pass through the first dust collecting net 301 to form larger particles. The condensed large particles will be recharged in the second dust collecting net 401 and collected on the second dust collecting net 401, and the purified air can flow out from the second air outlet 201 along the axial direction of the second dust collecting net 401. Therefore, the electric purification unit can improve the ultrafine particle purification efficiency, and since the first discharge electrode 302 is arranged on the inner side of the first dust collecting net 301, and the second discharge electrode 402 is arranged on the inner side of the second dust collecting net 401, the discharge voltage of the first discharge electrode 302 and the second discharge electrode 402 can be reduced, thereby achieving efficient dust removal at a lower voltage, thereby reducing energy consumption and operating costs.

[0035] It should be noted that the magnitudes of the negative voltage and the positive voltage need to be able to achieve discharge of the first discharge electrode and the second discharge electrode. The negative voltage is specifically negative high voltage electricity, and the positive voltage is specifically positive high voltage electricity.

[0036] Specifically in one embodiment, the first discharge electrode 302 is connected to a negative voltage, and the second discharge electrode 402 is connected to a positive voltage. In this embodiment, air enters the inner side of the first dust collecting net 301 through the first air outlet 101, and the first discharge electrode 302 discharges the air entering the first dust collecting net 301, so that the particles in the air are negatively charged. The large particles are directly collected on the first dust collecting net 301 after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and pass through the first dust collecting net 301 in the radial direction. At the same time, uncharged ultrafine particles also pass through the first dust collecting net 301 in the radial direction. Since the second discharge electrode 402 is provided on the inner side of the second dust collecting net 401, and the second discharge electrode 402 is connected to a positive voltage, the discharge of the second discharge electrode 402 will cause the uncharged ultrafine particles to be positively charged, and condense and combine with the charged ultrafine particles passing through the first dust collecting net 301 to form larger particles. The condensed large particles will be recharged in the second dust collecting net 401 and collected on the second dust collecting net 401, and the purified air can flow out from the second air outlet 201 along the axial direction of the second dust collecting net 401.

[0037] Of course, in an alternative embodiment, the first discharge electrode 302 is connected to a positive voltage, and the second discharge electrode 402 is connected to a negative voltage.

[0038] Specifically in one embodiment, the first dust collecting net 301 and the second dust collecting net 401 are both cylindrical, and the meshes of the first dust collecting net 301 and the second dust collecting net 401 are suitable for air to flow through.

[0039] Specifically in one embodiment, the first discharge electrode 302 is a discharge needle.

[0040] Specifically in one embodiment, the second discharge electrode 402 is a discharge needle.

[0041] In one embodiment, the first purification component 3 includes a row of first dust collecting nets 301 and first discharge electrodes 302 arranged one-to-one with the first dust collecting nets 301, and the second purification component 4 includes a row of second dust collecting nets 401 and second discharge electrodes 402 arranged one-to-one with the second dust collecting nets 401.

[0042] In this embodiment, the first purification component 3 includes a row of first dust collecting nets 301 and first discharge electrodes 302 arranged in a one-to-one correspondence with the first dust collecting nets 301, so the first discharge electrodes 302 in a row of first dust collecting nets 301 can discharge at the same time, and the second purification component 4 includes a row of second dust collecting nets 401 and second discharge electrodes 402 arranged in a one-to-one correspondence with the second dust collecting nets 401, and the second discharge electrodes 402 in a row of second dust collecting nets 401 can discharge at the same time, thereby improving the purification efficiency of air and improving the purification efficiency of ultrafine particles.

[0043] Specific as Figure 8As shown, the first air outlets 101 are provided in multiple rows, a row of first air outlets 101 is opposite to and connected to a row of first dust collecting nets 301, and the second air outlets 201 are provided in multiple rows, a row of second air outlets 201 is opposite to and connected to a row of second dust collecting nets 401. The air enters a row of first dust collecting nets 301 through the first air outlet 101 at the same time, and a row of first discharge electrodes 302 discharges at the same time, so that the particles in the air are charged. Large particles are directly collected on the first dust collecting net 301 after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and pass through the first dust collecting net 301 in the radial direction. At the same time, uncharged ultrafine particles also pass through the first dust collecting net 301 in the radial direction, and a row of second discharge electrodes 402 discharges at the same time. The discharge of the second discharge electrodes 402 can charge the uncharged ultrafine particles, which will condense and combine with the charged ultrafine particles passing through the first dust collecting net 301 into larger particles. The condensed large particles will be recharged in the second dust collecting net 401 and collected on the second dust collecting net 401, and the purified air can flow out from the second air outlet 201 along the axial direction of the second dust collecting net 401.

[0044] In one embodiment, the first purification component 3 further includes a first conductive member 303, which is connected to a first discharge electrode 302 in a row of first dust collecting nets 301, and the first conductive member 303 is suitable for connecting to one of a negative voltage and a positive voltage.

[0045] In this embodiment, a first conductive member 303 is provided, the first conductive member 303 is connected to a first discharge electrode 302 in a row of first dust collecting nets 301, and the first conductive member 303 is conductively connected to a plurality of first discharge electrodes 302 at the same time. Therefore, it is only necessary to connect the first conductive member 303 to one of the negative voltage and the positive voltage, and there is no need to connect each first discharge electrode 302 to a power source respectively, which makes it easier to connect each first discharge electrode 302 to power at the same time.

[0046] Specifically in one embodiment, the first conductive member 303 is a copper foil.

[0047] In other alternative embodiments, the first conductive member 303 may also be other metal members with excellent conductive properties.

[0048] In one embodiment, the second purification component 4 further includes a second conductive member 403, which is connected to a second discharge electrode 402 in a row of second dust collecting nets 401, and the second conductive member 403 is suitable for connecting to the other of a negative voltage and a positive voltage.

[0049] In this embodiment, a second conductive member 403 is provided, the second conductive member 403 is connected to a second discharge electrode 402 in a row of second dust collecting nets 401, and the second conductive member 403 is conductively connected to a plurality of second discharge electrodes 402 at the same time. Therefore, it is only necessary to connect the second conductive member 403 to the other of the negative voltage and the positive voltage, and there is no need to connect each second discharge electrode 402 to a power source respectively, which makes it easier to connect each second discharge electrode 402 to power at the same time.

[0050] Specifically in one embodiment, the second conductive member 403 is a copper foil.

[0051] In other alternative embodiments, the second conductive member 403 may also be other metal members with excellent conductive properties.

[0052] In one embodiment, the electric purification unit includes multiple rows of first purification components 3 and multiple rows of second purification components 4, and the first purification components 3 and the second purification components 4 are alternately arranged in sequence.

[0053] In this embodiment, the electric purification unit includes multiple rows of first purification components 3 and second purification components 4, each row of first purification components 3 corresponds to a row of first air outlets 101, and each row of second purification components 4 corresponds to a row of second air outlets 201. Therefore, the second purification components 4 are arranged on one side or both sides of a row of first purification components 3, and the air enters each first dust collecting net 301 through the first air outlet 101. The first discharge electrodes 302 in each first dust collecting net 301 discharge at the same time, so that the particles in the air are charged. The large particles are directly collected on the first dust collecting net 301 after being charged, and the charged ultrafine particles cannot be collected due to the small attraction, and are discharged along the The first dust collecting net 301 is passed through in the radial direction to the left or right, and uncharged ultrafine particles are also passed through in the radial direction to the left or right, and flow to the second dust collecting net 401. The second discharge electrodes 402 in each second dust collecting net 401 discharge at the same time. The discharge of the second discharge electrodes 402 will charge the uncharged ultrafine particles, and condense and combine with the charged ultrafine particles passing through the first dust collecting net 301 to form larger particles. The condensed large particles will be recharged in the second dust collecting net 401 and collected on the second dust collecting net 401. The purified air can flow out from the second air outlet 201 along the axial direction of the second dust collecting net 401. The electric purification unit includes multiple rows of first purification components 3 and multiple rows of second purification components 4, and the first purification components 3 and the second purification components 4 are alternately arranged in sequence, which can further improve the purification efficiency.

[0054] Specifically in one embodiment, Figure 2 and Figure 4As shown, the first purification components 3 are arranged in five rows, the second purification components 4 are arranged in four rows, and the first purification components 3 are arranged on both sides of the second purification components 4. Correspondingly, the first air outlets 101 are arranged in five rows, and the second air outlets 201 are arranged in four rows. In this embodiment, the air enters the first dust collecting net 301 from the two outermost rows of first air outlets 101, and can only enter the adjacent second dust collecting net 401 to the left or right for further purification after some particles are purified by the first dust collecting net 301. The air enters the first dust collecting net 301 from the first air outlets 101 in the middle rows, and can enter the adjacent second dust collecting net 401 to the left or right for further purification after some particles are purified by the first dust collecting net 301.

[0055] In one embodiment, the outer shell includes an outer frame 2 and an inner frame 1, the inner frame 1 is buckled on the outer frame 2, the inner frame 1 is provided with a first air outlet 101, the outer frame 2 is provided with a second air outlet 201, multiple rows of first purification components 3 are provided on the outer frame 2, and multiple rows of second purification components 4 are provided on the inner frame 1.

[0056] In this embodiment, during processing, the outer frame 2 and the inner frame 1 are processed separately, and then multiple rows of first purification components 3 are integrally arranged on the outer shell, and multiple rows of second purification components 4 are integrally arranged on the inner frame 1, and then the inner frame 1 is buckled on the outer frame 2 to form the electric purification unit, which is convenient for the assembly of the electric purification unit. At the same time, since the first purification component 3 is arranged on the outer frame 2 and the second purification component 4 is arranged on the inner frame 1, it is convenient to connect the first discharge electrode 302 and the second discharge electrode 402 to the power supply respectively.

[0057] Specifically in one embodiment, the first purification components 3 are provided with multiple rows, and the first discharge electrodes 302 in each row of the first purification components 3 are connected to a first conductive member 303 , the first conductive member 303 is fixed to the outer frame 2 , and the first discharge electrodes 302 are fixedly arranged on the first conductive member 303 .

[0058] Specific as Figure 3 As shown, the first purification components 3 are arranged in five rows, so there are five first conductive members 303 , and the five first conductive members 303 are all fixed to the outer frame 2 .

[0059] Specifically in one embodiment, the first discharge electrode 302 includes a needle holder and a needle. The arrangement of the needle holder increases the contact area with the first conductive member 303 , making it easier to fix the first conductive member 303 .

[0060] Specifically in one embodiment, the second purification components 4 are provided in multiple rows, and the second discharge electrodes 402 in each row of the second purification components 4 are connected to a second conductive member 403 . The second conductive member 403 is fixed to the inner frame 1 , and the second discharge electrodes 402 are fixedly arranged on the second conductive member 403 .

[0061] Specific as Figure 5As shown, the second purification components 4 are arranged in four rows, so there are four second conductive members 403 , and the four second conductive members 403 are all fixed to the outer frame 2 .

[0062] Specifically in one embodiment, the second discharge electrode 402 includes a needle holder and a needle. The arrangement of the needle holder increases the contact area with the second conductive member 403 , making it easier to fix the second conductive member 403 .

[0063] In one embodiment, the outer frame 2 is provided with a first limiting frame 202 corresponding one-to-one to the first dust collecting net 301, and the first dust collecting net 301 is arranged in the first limiting frame 202; the inner frame 1 is provided with a second limiting frame 102 corresponding one-to-one to the second dust collecting net 401, and the second dust collecting net 401 is arranged in the second limiting frame 102.

[0064] In this embodiment, by providing the first limiting frame 202 on the outer frame 2, each first dust collecting net 301 is installed in the first limiting frame 202, and the first dust collecting net 301 can be fixed to the outer frame 2, which is convenient for installing the first dust collecting net 301. By providing the first limiting frame 202 on the inner frame 1, each second dust collecting net 401 is installed in the first limiting frame 202, and the second dust collecting net 401 can be fixed to the inner frame 1, which is convenient for installing the second dust collecting net 401.

[0065] It should be noted that the setting of the first limiting frame 202 does not affect the airflow passing through the first dust collecting net 301 , and the setting of the second limiting frame 102 does not affect the airflow passing through the second dust collecting net 401 .

[0066] In one embodiment, the outer frame 2 includes a bottom plate 203 and a first enclosure 204 arranged at the edge of the bottom plate 203 , and the inner frame 1 includes a top plate 103 and a second enclosure 104 protruding from the top plate 103 , and the second enclosure 104 is embedded in the inner side of the first enclosure 204 .

[0067] In this embodiment, the outer frame 2 includes a bottom plate 203 and a first enclosure 204 arranged on the edge of the bottom plate 203, and the inner frame 1 includes a top plate 103 and a second enclosure 104 protruding from the top plate 103, and the second enclosure 104 is embedded in the inner side of the first enclosure 204. Therefore, after the outer frame 2 and the inner frame 1 are assembled, the first purification component 3 and the second purification component 4 are enclosed, which is safer.

[0068] Specifically, the first purification component 3 is installed on the bottom plate 203 , the second purification component 4 is installed on the top plate 103 , the top plate 103 is provided with a first air outlet 101 , and the bottom plate 203 is provided with a second air outlet 201 .

[0069] Of course, in an embodiment not shown in the figure, the outer frame 2 can include a bottom plate 203 and a first enclosure 204 arranged at the edge of the bottom plate 203, and the inner frame 1 only includes a top plate 103, and the top plate 103 is arranged on the top of the first enclosure 204.

[0070] According to an embodiment of the present invention, on the other hand, an electric purification device is also provided. Figures 6 to 9 As shown, it includes at least two electric purification units provided in the above embodiments, at least two electric purification units are stacked, and the first air outlet 101 of one of the two adjacent electric purification units is connected to the second air outlet 201 or the first air outlet 101 of the other electric purification unit.

[0071] The electric purification device includes at least two electric purification units, and the first air outlet 101 of one of the two adjacent electric purification units is connected to the second air outlet 201 or the first air outlet 101 of the other electric purification unit. Therefore, after the air is purified by one of the electric purification units, it will enter the adjacent electric purification power source for purification again, which can improve the purification efficiency of the air and the purification efficiency of ultrafine particles.

[0072] In one embodiment, two adjacent electric purification units are symmetrically arranged.

[0073] In this embodiment, the electric purification device includes at least two electric purification units, and the two adjacent electric purification units are symmetrically arranged. When the electric purification device is working, the air enters the second dust collecting net 401 of the uppermost electric purification unit through the second air outlet 201, and the second discharge electrode 402 discharges the air entering the second dust collecting net 401, so that the particles in the air are charged. The large particles are directly collected on the second dust collecting net 401 after being charged. The charged ultrafine particles cannot be collected due to the small attraction, and pass through the second dust collecting net 401 in the radial direction and flow toward the adjacent first dust collecting net 301. At the same time, there are also uncharged ultrafine particles that pass through the second dust collecting net 401 in the radial direction and flow toward the adjacent first dust collecting net 301. The discharge of the first discharge electrode 302 will cause the uncharged ultrafine particles to be charged, and will agglomerate with the charged ultrafine particles passing through the second dust collecting net 401 to form larger particles. The agglomerated large particles will be recharged in the first dust collecting net 301 and collected on the first dust collecting net 301. The charged ultrafine particles not collected by the first dust collecting net 301 and the uncharged agglomerated large particles will flow out from the first air outlet 101 along the axial direction of the first dust collecting net 301 and enter the lower electrical purification unit for continued purification, thereby improving the purification efficiency.

[0074] Specifically in one embodiment, the electric purification device includes two electric purification units, the two electric purification units are stacked in the up-down direction, and the two electric purification units are symmetrically arranged about the stacking plane. For example, the upper discharge unit is sequentially the second discharge component, the first discharge component...the second discharge component from left to right, and the lower discharge unit is sequentially the second discharge component, the first discharge component...the second discharge component from left to right, and the direction of air flow is from the second air outlet 201 of the upper discharge unit into the second discharge component, then to the left and right into the first discharge component, then downward into the first discharge component of the lower discharge unit, then to the left and right into the second discharge component, and finally out of the lower discharge unit along the axial direction.

[0075] Specifically in one embodiment, for example, the second discharge electrodes 402 of the upper discharge unit and the lower discharge unit are both connected to negative voltages, and the first discharge electrodes 302 of the upper discharge unit and the lower discharge unit are both connected to positive voltages. When air enters the second dust collecting net 401 of the upper discharge unit, the second discharge electrode 402 discharges to cause the particles in the air to carry negative charges, and the large particles are directly collected on the second dust collecting net 401 after being charged. The charged ultrafine particles cannot be collected due to the small attraction force, and the charged ultrafine particles and the uncharged ultrafine particles enter the first discharge component to the left and right, respectively. The first discharge electrode 302 of the first discharge component discharges to cause the uncharged ultrafine particles to carry positive charges. The positively charged ultrafine particles and the negatively charged ultrafine particles combine and agglomerate under the action of the charge force to form larger particles. A part of the agglomerated large particles are recharged here and collected on the first dust collecting net 301, and a part of them are not recharged or are still small and not charged enough to be collected. The first discharge electrode 302 of the first discharge component discharges on the first dust collecting net 301 and enters the first discharge component of the lower layer, so that the uncharged particles are recharged and collected on the first dust collecting net 301. At the same time, the particles that are not large enough after condensation are condensed into larger particles again, and the particles that are large enough are collected on the first dust collecting net 301. The particles that are not collected will enter the second discharge component of the lower discharge unit to the left and right. The second discharge electrode 402 of the second discharge component is connected to a negative voltage, so that the large particles that have entered here are negatively charged and collected on the second dust collecting net 401. Therefore, the ultrafine particles are charged and collected, condensed and collected, recondensed and collected, and charged again. After four times of charging and collection, large particles are condensed twice, which greatly improves the dust removal efficiency.

[0076] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. An electric purification unit, characterized in that: include: A housing, wherein a first surface is provided with a first air outlet (101), and a second surface is provided with a second air outlet (201), the first surface is directly opposite to the second surface, and the first air outlet (101) and the second air outlet (201) are offset; A first purification component (3) is disposed in the housing, comprising a first dust collecting net (301) in a cylindrical shape and a first discharge electrode (302) disposed in the first dust collecting net (301), wherein the inner side of the first dust collecting net (301) is connected to the first air outlet (101); A second purification component (4) is disposed in the housing, comprising a second dust collecting net (401) in a cylindrical shape and a second discharge electrode (402) disposed in the second dust collecting net (401), the inner side of the second dust collecting net (401) being connected to the second air outlet (201), the first discharge electrode (302) being suitable for connecting to one of a negative voltage and a positive voltage, and the second discharge electrode (402) being suitable for connecting to the other of a negative voltage and a positive voltage.

2. The electric purification unit according to claim 1, characterized in that: The first purification component (3) comprises a row of the first dust collecting nets (301) and the first discharge electrodes (302) arranged in a one-to-one correspondence with the first dust collecting nets (301), and the second purification component (4) comprises a row of the second dust collecting nets (401) and the second discharge electrodes (402) arranged in a one-to-one correspondence with the second dust collecting nets (401).

3. The electric purification unit according to claim 2, characterized in that: The first purification component (3) further comprises a first conductive member (303), the first conductive member (303) being connected to the first discharge electrodes (302) in a row of the first dust collecting nets (301), the first conductive member (303) being suitable for connecting to one of a negative voltage and a positive voltage.

4. The electric purification unit according to claim 2, characterized in that: The second purification component (4) further comprises a second conductive member (403), the second conductive member (403) being connected to the second discharge electrodes (402) in a row of the second dust collecting nets (401), and the second conductive member (403) being suitable for connecting to the other of a negative voltage and a positive voltage.

5. The electric purification unit according to any one of claims 2 to 4, characterized in that: The electric purification unit comprises a plurality of rows of the first purification components (3) and a plurality of rows of the second purification components (4), wherein the first purification components (3) and the second purification components (4) are arranged alternately in sequence.

6. The electric purification unit according to claim 5, characterized in that: The outer shell comprises an outer frame (2) and an inner frame (1), the inner frame (1) being buckled on the outer frame (2), the inner frame (1) being provided with the first air outlet (101), the outer frame (2) being provided with the second air outlet (201), a plurality of rows of the first purification components (3) being provided on the outer frame (2), and a plurality of rows of the second purification components (4) being provided on the inner frame (1).

7. The electric purification unit according to claim 6, characterized in that: The outer frame (2) is provided with a first limiting frame (202) corresponding one-to-one to the first dust collecting net (301), and the first dust collecting net (301) is arranged in the first limiting frame (202).

8. The electric purification unit according to claim 6, characterized in that: The inner frame (1) is provided with a second limiting frame (102) corresponding one-to-one to the second dust collecting net (401), and the second dust collecting net (401) is arranged in the second limiting frame (102).

9. The electric purification unit according to claim 6, characterized in that: The outer frame (2) comprises a bottom plate (203) and a first enclosure plate (204) arranged at the edge of the bottom plate (203); the inner frame (1) comprises a top plate (103) and a second enclosure plate (104) protruding from the top plate (103); the second enclosure plate (104) is embedded in the inner side of the first enclosure plate (204).

10. An electric purification device, characterized in that: The invention comprises at least two electric purification units according to any one of claims 1 to 9, wherein at least two of the electric purification units are stacked, and a first air outlet (101) of one of two adjacent electric purification units is connected to a second air outlet (201) or a first air outlet (101) of the other electric purification unit.

11. The electric purification device according to claim 10, characterized in that: Two adjacent electric purification units are symmetrically arranged.

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