Dry-type electric dust collector with front and rear partitioned inverter electric field

Abstract

The utility model provides a dry type electric dust collector of inverter flow electric field with front and back partition, including air inlet tank, shell and air outlet tank, and one to two inverter flow electric fields of adopting the way of rapping electrode to clean ash, the inverter flow electric field includes inverter flow electric field front, rear area, wherein the inverter flow electric field front area includes a plurality of high -efficient front area cathode line group and a plurality of high -efficient front area through -type anode plate row of interval arrangement, and the inverter flow electric field rear area includes a plurality of high -efficient rear area cathode line group and a plurality of high -efficient rear area through -type anode plate row of interval arrangement, and every high -efficient front area cathode line group does not with any high -efficient rear area cathode line group electric connection, a plurality of high -efficient front area cathode line group and a plurality of rear area cathode line group are connected with the negative high -voltage output of inverter flow electric field front, rear area high -voltage power supply device respectively, and the discharge of high -efficient front area cathode line in high -efficient front area cathode line group is stronger than the discharge of high -efficient rear area cathode line in high -efficient rear area cathode line group.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitators, and more particularly to a dry electrostatic precipitator with a front and rear partitioned inverter electric field. Background Technology

[0002] Because the single, ordinary plate-type electric field in a common dry electrostatic precipitator has relatively low efficiency in capturing PM2.5 in dust-laden airflow, and generates a significant amount of secondary dust during electrode rapping cleaning, dry electrostatic precipitators with inverter electric fields were developed. Later, dry electrostatic precipitators with front and rear partitions of the inverter electric field structure were developed. In dry electrostatic precipitators with front and rear partitions of the inverter electric field structure, each inverter electric field has a labyrinthine structure and is equipped with its own high-voltage power supply device. In the front zone of this inverter current electric field, several front zone air inlet channels and several front zone air outlet channels are arranged alternately. Each front zone air outlet channel has a front baffle plate at its front end, and each front zone air inlet channel has an airflow blocking plate at its rear end—to seal the end of each front zone air inlet channel, thereby preventing dust-laden airflow from flowing directly from the front zone air inlet channel into the rear zone air outlet channel located directly behind it. In the rear zone of this inverter current electric field, several rear zone air inlet channels and several rear zone air outlet channels are arranged alternately. Each rear zone air inlet channel is unobstructed by a front zone air outlet channel located directly in front of it, and each rear zone air inlet channel has a rear zone baffle plate at its rear end.

[0003] In the inverter current electric field of this dry electrostatic precipitator, any airflow entering a front zone inlet channel flows towards the rear end of that channel while simultaneously branching off into multiple narrow airflow channels within one (or several) front zone transparent anode plate arrays located on one side (or on both sides). Furthermore, each small stream of airflow entering these narrow airflow channels will flow into one (or two) adjacent front zone outlet channels at an obtuse angle to the direction of the dust-laden airflow at the outlet of the corresponding narrow airflow channel, and then exit into that one (or two) front zone outlet channels. The airflow flows out of the channel until it enters the inlet of one (or two) rear air inlet channels that are open to it; then, the airflow entering any of the above rear air inlet channels flows forward while being diverted to multiple narrow airflow channels in the two rear airflow channels located on both sides of it. Moreover, each small stream of airflow entering those narrow airflow channels will flow into the two rear air outlet channels adjacent to the rear air inlet channel in the form of an obtuse angle between the direction of the dust-laden airflow at the outlet of the corresponding narrow airflow channel and the direction of the dust-laden airflow at the inlet of the rear air inlet channel, and flow towards the outlet of the two rear air outlet channels until it exits the two rear air outlet channels.

[0004] In the inverter electric field of this type of dry electrostatic precipitator, when the airflow moves to the left (or right) side of any front or rear air inlet channel of the inverter electric field, without considering the gravity of the dust, the resultant force on each charged dust particle in the airflow can be obtained by adding the wind force and the electric field force vector of each charged dust particle. Because the component of the resultant force in the direction of the electric field force is significantly greater than the electric field force itself, its effective driving velocity can be significantly improved. In addition, as the airflow flows through the labyrinthine structure of the inverter electric field with front and rear partitions, the airflow velocity changes abruptly five times, thus enhancing the effect of the charged dust separating from the airflow due to inertia. Therefore, this inverter electric field with a front-and-back partitioned structure has a strong ability to capture charged dust. Moreover, under the same conditions of dust-laden airflow parameters, rapping cleaning device, electrode configuration, effective cross-sectional area of ​​the electric field, and effective length of the electric field, the dust removal efficiency of such an inverter electric field with a front-and-back partitioned structure is equivalent to the dust removal efficiency of two ordinary plate-wire electric fields connected in series in a common dry electrostatic precipitator. Therefore, compared with common dry electrostatic precipitators, this dry electrostatic precipitator has a higher dust removal efficiency and a lower dust concentration in its outlet airflow.

[0005] However, people still urgently hope to further enhance the ability of the inverter electric field in this type of dry electrostatic precipitator to capture charged dust, so as to further improve the dust removal efficiency of this type of dry electrostatic precipitator and reduce the dust concentration in its outlet airflow, thereby meeting people's growing need for a beautiful ecological environment. Utility Model Content

[0006] The present invention aims to provide a dry electrostatic precipitator with front and rear partitioned inverter electric fields. By implementing partitioned power supply for each inverter electric field, the front and rear partitions of each inverter electric field can operate in their optimal state, thereby significantly improving their respective operating voltages and dust removal efficiency, and thus significantly improving the dust removal efficiency of the dry electrostatic precipitator and reducing the dust concentration in its outlet airflow.

[0007] Therefore, the present invention adopts the following technical solution:

[0008] A dry electrostatic precipitator with front and rear partitioned inverter electric fields includes an inlet box, a shell, and an outlet box. It also includes one or two inverter electric fields that employ a rapping electrode cleaning method. The inverter electric fields comprise a front region and a rear region. The front region includes multiple high-efficiency front cathode wire groups and multiple high-efficiency front transparent anode plate arrays arranged alternately. The rear region includes multiple high-efficiency rear cathode wire groups and multiple high-efficiency rear transparent anode plate arrays arranged alternately, wherein each high-efficiency front cathode wire group is not electrically connected to any high-efficiency rear cathode wire group. The multiple high-efficiency front cathode wire groups and the multiple high-efficiency rear cathode wire groups are respectively electrically connected to the negative high-voltage output terminal of the high-voltage power supply device for the front region and the negative high-voltage output terminal of the high-voltage power supply device for the rear region. Furthermore, the discharge performance of the high-efficiency front cathode wires in the high-efficiency front cathode wire groups is stronger than that of the high-efficiency rear cathode wires in the high-efficiency rear cathode wire groups.

[0009] Preferably, both the high-voltage power supply device in the front region of the inverter electric field and the high-voltage power supply device in the rear region of the inverter electric field are high-frequency power supplies or frequency converters.

[0010] Preferably, the high-efficiency front-zone cathode wire in the high-efficiency front-zone cathode wire group and the high-efficiency rear-zone cathode wire in the high-efficiency rear-zone cathode wire group are respectively tubular barbed wire and CS10A needle wire, or respectively CS20A needle wire and CS10A needle wire, or respectively respectively a fishbone needle wire and CS10A needle wire, or respectively respectively CS10A needle wire and CS10B needle wire, or respectively respectively CS10B needle wire and CW09A waveform wire, or respectively respectively V15 wire and CW09A waveform wire, or respectively respectively V15 wire and V0 wire.

[0011] Preferably, the high-efficiency front-area transparent anode plate array includes a high-efficiency front-area electrode plate fixing frame and multiple high-efficiency front-area anode plates installed therein in a grid-like manner, while the high-efficiency rear-area transparent anode plate array includes a high-efficiency rear-area electrode plate fixing frame and multiple high-efficiency rear-area anode plates installed therein in a grid-like manner. Both the high-efficiency front-area anode plate and the high-efficiency rear-area anode plate include an electrode plate main part and an electrode plate left-side curved part and / or electrode plate right-side curved part integrated therewith. Moreover, the cross-sectional dimensions of the high-efficiency front-area anode plate are the same as those of the high-efficiency rear-area anode plate.

[0012] Preferably, the cross-sections of the high-efficiency front anode plate and the high-efficiency rear anode plate are both trapezoidal grooves, or both are F-shaped, or both are integral symbols ∫.

[0013] In the high-efficiency front-area transparent anode plate array, the distance between the main plates of any two adjacent high-efficiency front-area anode plates is between 41mm and 55mm; in the high-efficiency rear-area transparent anode plate array, the distance between the main plates of any two adjacent high-efficiency rear-area anode plates is between 31mm and 40mm, or is equal to the distance between the main plates of any two adjacent high-efficiency front-area anode plates in the high-efficiency front-area transparent anode plate array.

[0014] The angle between the setting direction of the air inlet end to the air outlet end of the main part of the high-efficiency front anode plate and the direction of the dust-laden airflow at the outlet of the high-efficiency front air outlet channel of the inverter electric field front area is between 100° and 130°.

[0015] The angle between the direction of the air inlet end to the air outlet end of the main part of the high-efficiency rear anode plate and the direction of the dust-laden airflow at the inlet of the high-efficiency rear air inlet channel of the inverter electric field rear zone is also between 100° and 130°.

[0016] Preferably, each of the high-efficiency front-area transparent anode plate arrays is not fixedly connected to the high-efficiency rear-area transparent anode plate array located directly behind it;

[0017] Between each high-efficiency front zone air inlet channel of the inverter electric field front zone and a high-efficiency rear zone air outlet channel of the inverter electric field rear zone located directly behind it, a pair of centrally curved plates are provided; each pair of centrally curved plates includes two centrally curved plates that stand back to back but are not fixedly connected; the left and right sides of the centrally curved plate with the slot facing forward are respectively tightly connected to the rear ends of the two adjacent high-efficiency front zone electrode plate fixing frames, or one side is tightly connected to the rear end of the adjacent high-efficiency front zone electrode plate fixing frame, while the other side is tightly connected to the rear end of the adjacent high-efficiency front zone ordinary anode plate row; the left and right sides of the centrally curved plate with the slot facing backward are respectively tightly connected to the front ends of the two adjacent high-efficiency rear zone electrode plate fixing frames, or one side is tightly connected to the front end of the adjacent high-efficiency rear zone electrode plate fixing frame, while the other side is tightly connected to the front end of the adjacent high-efficiency rear zone ordinary anode plate row.

[0018] Preferably, both the front region and the rear region of the inverter electric field are equipped with a number of cathode-top electromagnetic hammer rappers and a number of anode-top electromagnetic hammer rappers.

[0019] Preferably, the discharge performance of the efficient front cathode line of the preceding inverter electric field is stronger than that of the efficient front cathode line of the following inverter electric field, and the discharge performance of the efficient rear cathode line of the preceding inverter electric field is stronger than that of the efficient rear cathode line of the following inverter electric field.

[0020] Preferably, it also includes one or two ordinary plate-type electric fields disposed upstream of the plurality of inverter electric fields and cleaned by means of rapping electrodes.

[0021] Preferably, the ordinary plate-wire electric field includes a front region and a rear region; both the front and rear regions are equipped with several cathode-top electromagnetic hammer vibrators and several anode-top electromagnetic hammer vibrators; the front and rear regions each include multiple front-region cathode wire groups and multiple rear-region cathode wire groups, and each front-region cathode wire group is not electrically connected to any rear-region cathode wire group; the multiple front-region cathode wire groups and multiple rear-region cathode wire groups are electrically connected to the negative high-voltage output terminal of the high-voltage power supply device for the front and rear regions of the ordinary plate-wire electric field, respectively.

[0022] In any of the inverter current electric fields of the dry electrostatic precipitator with front and rear partitioned inverter current electric fields provided by this utility model, which adopts a partitioned power supply method, because the high-efficiency front zone cathode wire group and the high-efficiency front zone transparent anode plate row in the front zone of the inverter current electric field have respectively adsorbed a portion of the positively charged dust and a portion of the negatively charged dust in the dust-laden airflow, the average dust concentration in the airflow in the rear zone of the inverter current electric field is significantly lower than that in the front zone of the inverter current electric field. In addition, the lengths of the front and rear zones of the inverter current electric field in the shell length direction are only about half the length of the inverter current electric field in the shell length direction, resulting in a smaller difference in the dust concentration of the inlet and outlet airflows of each electric field partition. Therefore, each set of high-voltage power supply devices is better matched with the corresponding electric field partition.

[0023] Therefore, considering the influence of dust concentration in the airflow within the electric field on the corona current and electric field strength, it can be seen that the operating voltage of the rear region of the inverter electric field is significantly higher than that of the front region. Furthermore, compared to the operating voltage of the inverter electric field without zoned power supply, the operating voltage of the front region is also relatively high. Additionally, since the discharge capability of the front cathode line in the front region of the inverter electric field is stronger than that in the rear region of the inverter electric field within the same inverter electric field, the operating voltage of the rear region can be further increased. In short, the zoned power supply technology for the inverter electric field significantly improves the operating voltage and dust removal efficiency of both the front and rear regions, thereby significantly improving the dust removal efficiency of the dry electrostatic precipitator and reducing the dust concentration in its outlet airflow.

[0024] Furthermore, if a short circuit occurs in the corresponding front (or rear) region of the inverter electric field due to the breakage of a cathode wire in one of the high-efficiency front (or rear) regions, it is not necessary to immediately shut down the entire inverter electric field as in existing technologies that employ a front-and-back partitioned structure but do not use a partitioned power supply method. In terms of dust removal efficiency, this is roughly equivalent to shutting down two common plate-wire electric fields in a typical dry electrostatic precipitator. Instead, it is sufficient to immediately shut down the front (or rear) region of the inverter electric field and the rear (or front) region of the same inverter electric field, which can then continue to operate normally. In terms of dust removal efficiency, this is roughly equivalent to shutting down one common plate-wire electric field in a typical dry electrostatic precipitator. This avoids a sharp drop in the dust removal efficiency of the dry electrostatic precipitator due to shutting down the entire first or second inverter electric field, or in other words, avoids a sharp increase in the dust concentration in the outlet airflow of the dry electrostatic precipitator.

[0025] Furthermore, since both the high-voltage power supply device in the front zone and the high-voltage power supply device in the rear zone of the inverter electric field are high-frequency power supplies or frequency converters, the power supply methods with different intermittent ratios can be selected for the front zone and the rear zone of the inverter electric field according to the difference in dust resistivity within the two inverter electric field zones (Note: the dust in the dust-laden airflow entering the rear zone of the inverter electric field is relatively fine and has relatively high dust resistivity). This is to increase the peak operating voltage of each electric field zone, thereby reducing the specific power consumption of the dry electrostatic precipitator and further improving its dust removal efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a dry electrostatic precipitator with a front and rear partitioned inverter electric field provided by this utility model.

[0027] Figure 2 yes Figure 1Partial enlarged view I in

[0028] Figure 3 is Figure 1 Partial enlarged view II in

[0029] Figure 4 is a schematic structural view of the first inverter current electric field when the cross-sections of the first high-efficiency front and rear area anode plates are both changed to be in the shape of a factory character

[0030] Figure 5 is a schematic structural view of the first inverter current electric field when the cross-sections of the first high-efficiency front and rear area anode plates are both changed to be in the shape of an integral sign ∫ Specific embodiments

[0031] In order to make the purpose and technical solutions of the present utility model clearer, the present utility model will be further described below in conjunction with embodiments.

[0032] Such as Figures 1-5 shown, a dry electrostatic precipitator with a front and rear partitioned inverter current electric field includes an air inlet box 11, a housing 20, a common plate linear electric field, a first inverter current electric field, a second inverter current electric field, and an air outlet box 12, as well as three ash hoppers (not shown in the drawings) respectively located below the above three electric fields. The air inlet box 11 is arranged upstream of the common plate linear electric field, and the air outlet box 12 is arranged downstream of the second inverter current electric field. The common plate linear electric field includes a common plate linear electric field front area and a common plate linear electric field rear area, and the two are separately powered by a common plate linear electric field front area high-voltage power supply device 71 and a common plate linear electric field rear area high-voltage power supply device 72; the first inverter current electric field includes a first inverter current electric field front area and a first inverter current electric field rear area, and the two are separately powered by a first inverter current electric field front area high-voltage power supply device 73 and a first inverter current electric field rear area high-voltage power supply device 74; the second inverter current electric field includes a second inverter current electric field front area and a second inverter current electric field rear area, and the two are separately powered by a second inverter current electric field front area high-voltage power supply device 75 and a second inverter current electric field rear area high-voltage power supply device 76; the above six sets of high-voltage power supply devices are all high-frequency power supplies. In addition, the front areas and rear areas of the common plate linear electric field, the first inverter current electric field, and the second inverter current electric field all use the method of vibrating the electrodes for dust cleaning - specifically, the front areas and rear areas of the above-mentioned each electric field vibrate their electrodes in a timely manner through a number of cathode top electromagnetic hammer vibrators and a number of anode top electromagnetic hammer vibrators (note: not shown in the drawings) respectively installed therein for dust cleaning.

[0033] The high dust removal efficiency of each electric field zone in this dry electrostatic precipitator compared to those using only power frequency power is due to several factors: First, the output DC voltage ripple of the high-frequency power supply is smaller, resulting in higher operating voltage and corona power in each electric field zone. Second, when a spark occurs in any electric field zone, the required spark turn-off time is shorter, and the zone recovers quickly. Third, the high-frequency power supply can select different intermittent power supply ratios based on the differences in dust resistivity within each electric field zone, thereby increasing the peak operating voltage of each zone and reducing the specific power consumption of the dry electrostatic precipitator. Of course, all the aforementioned high-frequency power supplies can be replaced with frequency converters—and while the dust removal efficiency of each electric field zone is similar compared to those using high-frequency power supplies, the frequency converter's separate control cabinet and rectifier transformer structure, with the control cabinet installed in a well-ventilated dust control room, significantly improves the stability of the inverter electric field operation of the dry electrostatic precipitator and offers the advantage of easier operation and maintenance.

[0034] Because the conventional plate-wire electrostatic precipitator is powered in sections by the high-voltage power supply device 71 in the front section and the high-voltage power supply device 72 in the rear section, the operation of the front and rear sections of the conventional plate-wire electrostatic precipitator does not affect each other. This allows each section to operate at its optimal state and significantly increases its operating voltage, thereby improving the dust removal efficiency of each section, especially the dust removal efficiency of the rear section. Furthermore, if a short circuit occurs in the front (or rear) section due to the breakage of a cathode wire, the front (or rear) section can be immediately shut down while the rear (or front) section continues to operate normally. This avoids a significant drop in the dust removal efficiency of the dry electrostatic precipitator due to the shutdown of the entire conventional plate-wire electrostatic precipitator.

[0035] Similarly, because the first (or second) inverter electric field front zone and the first (or second) inverter electric field rear zone are respectively powered by the first (or second) inverter electric field front zone high-voltage power supply device 73 (or 75) and the first (or second) inverter electric field rear zone high-voltage power supply device 74 (or 76), the operating conditions of the first (or second) inverter electric field front zone and the first (or second) inverter electric field rear zone do not affect each other, so that the two electric field zones work in their optimal state and significantly improve the operating voltage of the two electric field zones, thereby significantly improving the dust removal efficiency of both and the dust removal efficiency of the dry electrostatic precipitator, especially significantly improving the PM2.5 capture efficiency of the first (or second) inverter electric field rear zone in the dust-laden airflow. Furthermore, if a short circuit occurs in the front (or rear) region of the first (or second) inverter electric field due to the breakage of a cathode wire in the front (or rear) region, it is not necessary to immediately shut down the entire first (or second) inverter electric field as in existing inverter electric fields that employ a front and rear partition structure but do not use a partitioned power supply method. Instead, it is sufficient to immediately shut down the front (or rear) region of the first (or second) inverter electric field, while the rear (or front) region of the first (or second) inverter electric field can continue to operate normally. This avoids a sharp drop in the dust removal efficiency of the dry electrostatic precipitator due to the shutdown of the entire first (or second) inverter electric field.

[0036] The technical characteristics and functions of the ordinary plate linear electric field will be further explained below.

[0037] The common plate linear electric field front zone includes thirteen common front zone cathode wire groups, each equipped with four RS barbed wires (i.e., tubular barbed wires) ( / or eight CS20A needle wires), and fourteen common front zone anode plate rows 41, each equipped with four C480 anode plates. Each of the common front zone cathode wire groups is fixedly installed on the corresponding common front zone twin-mast cathode frame 31. The thirteen common front zone cathode wire groups are respectively set in front of the electric field channel of the corresponding common plate linear electric field, and are all electrically connected to the negative high voltage output terminal of the common plate linear electric field front zone high voltage power supply device 71, so that the dust in the dust-laden airflow is charged and captured.

[0038] The rear zone of the conventional plate-line electric field includes thirteen conventional rear zone cathode wire groups, each equipped with four RS barbed wires (or eight CS20A needle-punched wires), and fourteen conventional rear zone anode plate rows 42, each equipped with four C480 anode plates. Each of the conventional rear zone cathode wire groups is fixedly mounted on a corresponding conventional rear zone twin-mast cathode frame 32. The thirteen conventional rear zone cathode wire groups are respectively located at the rear of the electric field channel of the corresponding conventional plate-line electric field and are all electrically connected to the negative high-voltage output terminal of the conventional plate-line electric field rear zone high-voltage power supply device 72, so that the dust in the dust-laden airflow is charged and captured. It should be noted that each conventional front zone cathode wire group is not electrically connected to any of the conventional rear zone cathode wire groups.

[0039] Then, the technical characteristics and functions of the first inverter electric field and the second inverter electric field will be further explained.

[0040] The first inverter electric field front zone includes nine first high-efficiency front zone cathode wire groups 333, eight first high-efficiency front zone transparent anode plate rows 43, and two first high-efficiency front zone ordinary anode plate rows 47A located on its left and right sides. Each first high-efficiency front zone ordinary anode plate row 47A is equipped with four C480 anode plates. All nine first high-efficiency front zone cathode wire groups 333 are electrically connected to the negative high-voltage output terminal of the first inverter electric field front zone high-voltage power supply device 73, and each first high-efficiency front zone cathode wire group 333 is located in the corresponding first high-efficiency front zone air inlet channel or first high-efficiency front zone air outlet channel of the first inverter electric field front zone. The orientation of each first high-efficiency front zone transparent anode plate row 43 and each first front zone ordinary anode plate row 47A is parallel to the symmetrical center line of any one of the first high-efficiency front zone air outlet channels. Each first high-efficiency front zone transparent anode plate row 43 located on the left side of any first high-efficiency front zone air outlet channel is symmetrically distributed with another first high-efficiency front zone transparent anode plate row 43 located on its right side.

[0041] The first inverter electric field rear zone includes nine first high-efficiency rear zone cathode wire groups 343, eight first high-efficiency rear zone transparent anode plate rows 44, and two first high-efficiency rear zone ordinary anode plate rows 47B located on its left and right sides. Each first high-efficiency rear zone ordinary anode plate row 47B is equipped with four C480 anode plates. All nine first high-efficiency rear zone cathode wire groups 343 are electrically connected to the negative high-voltage output terminal of the first inverter electric field rear zone high-voltage power supply device 74, and each first high-efficiency rear zone cathode wire group 343 is located in the corresponding first high-efficiency rear zone air inlet channel or first high-efficiency rear zone air outlet channel. The orientation of each first high-efficiency rear zone transparent anode plate row 44 and each first high-efficiency rear zone ordinary anode plate row 47B is parallel to the symmetrical center line of any one of the first high-efficiency rear zone air inlet channels. Each first high-efficiency rear area transparent anode plate row 44 located on the left side of any first high-efficiency rear area air inlet channel is symmetrically distributed with another first high-efficiency rear area transparent anode plate row 44 located on its right side.

[0042] It should be further noted that each of the first high-efficiency rear cathode wire groups 343 is not electrically connected to any of the first high-efficiency front cathode wire groups 333; in addition, the distance b between any two adjacent first high-efficiency rear cathode wire groups 343 is equal to the distance between any two adjacent first high-efficiency front cathode wire groups 333; however, they are all significantly greater than the distance B between any two adjacent ordinary front cathode wire groups (or ordinary rear cathode wire groups). Furthermore, each first high-efficiency front transparent anode plate row 43 is not fixedly connected to the first high-efficiency rear transparent anode plate row 44 located directly behind it, so as to avoid a significant decrease in the minimum rapping acceleration of the anode plates of both, thus affecting their dust removal effect.

[0043] Each first high-efficiency front-zone cathode wire group 333 includes seven CS10A needle wires (i.e., first high-efficiency front-zone cathode wires) with stronger discharge performance than CS10B needle wires, which are fixedly installed on a first high-efficiency front-zone twin-mast cathode small frame 33. Each of its discharge needles has a length of 10mm protruding from the φ8 round steel, and the tip of the discharge needle is conical, while the main diameter of the discharge needle is 2mm. Each first high-efficiency rear-zone cathode wire group 343 includes seven CS10B needle wires (i.e., first high-efficiency rear-zone cathode wires) fixedly installed on a first high-efficiency rear-zone twin-mast cathode small frame 34. Each of its discharge needles has a length of 10mm protruding from the φ8 round steel, and the tip of the discharge needle is made by beveling a cylinder at 45°, while the main diameter of the discharge needle is 2mm. However, it can be modified as follows: each first high-efficiency front zone cathode wire group 333 includes seven straight fishbone needle wires, while each first high-efficiency rear zone cathode wire group 343 includes seven CS10A needle wires. Each first high-efficiency front zone twin-mast cathode small frame 33 also includes two first high-efficiency front zone main masts 331 and multiple first high-efficiency front zone horizontal tubes 332, while each first high-efficiency rear zone twin-mast cathode small frame 34 also includes two first high-efficiency rear zone main masts 341 and multiple first high-efficiency rear zone horizontal tubes 342.

[0044] Let's start with... Figure 2 Taking a first high-efficiency front zone cathode wire group 333 and a first high-efficiency rear zone cathode wire group 343, which are adjacent to the first high-efficiency front zone ordinary anode plate row 47A and the first high-efficiency rear zone ordinary anode plate row 47B respectively, as examples, the specific positions of each cathode wire in each first high-efficiency front zone cathode wire group 333 and the first high-efficiency rear zone cathode wire group 343 in the corresponding high-efficiency front zone ( / or high-efficiency rear zone) air inlet ( / or air outlet) channel are explained. From front to back ( / or from back to front), the first and second cathode wires in the first high-efficiency front zone cathode wire group 333 ( / or the first high-efficiency rear zone cathode wire group 343) are matched with the first C480 anode plate in the first high-efficiency front zone ordinary anode plate row 47A ( / or the first high-efficiency rear zone ordinary anode plate row 47B), the third and fourth cathode wires are matched with the second C480 anode plate, the fifth and sixth cathode wires are matched with the third C480 anode plate, and the seventh cathode wire is matched with the fourth C480 anode plate. The front half (or rear half) of the anode plate is matched to ensure that the net distance between the 7th cathode wire and the adjacent pair of central inferior arc plates 53 is significantly greater than the net distance between the first high-efficiency front region cathode wire group 333 and the first high-efficiency front region transparent anode plate row 43 (or the net distance between the first high-efficiency rear region cathode wire group 343 and the first high-efficiency rear region transparent anode plate row 44), thereby avoiding a decrease in both the breakdown voltage and the operating voltage of the first inverter current electric field front region (or rear region).

[0045] Each first high-efficiency front-region permeable anode plate row 43 includes a first high-efficiency front-region plate fixing frame 431 and multiple first high-efficiency front-region anode plates 432 installed in a grid pattern therein, while each first high-efficiency rear-region permeable anode plate row 44 includes a first high-efficiency rear-region plate fixing frame 441 and multiple first high-efficiency rear-region anode plates 442 installed in a grid pattern therein. The first high-efficiency front-region anode plates 432 and the first high-efficiency rear-region anode plates 442 can both be rolled from thin steel plates. The first high-efficiency front-region anode plates 432 and the first high-efficiency rear-region anode plates 442 both include a main plate portion and a left-side bent portion and a right-side bent portion integrally connected thereto - thus being able to improve their stiffness and their rapping acceleration, thereby enhancing the dust cleaning effect generated when the rapping device raps them, and the cross-sections of both are trapezoidal grooves (see Figure 2 ), and the cross-sectional dimensions of both are the same.

[0046] In each first high-efficiency front-region permeable anode plate row 43 or first high-efficiency rear-region permeable anode plate row 44, the distance F between the main plate portions of any two adjacent first high-efficiency front-region anode plates 432 in the front and back or the distance G between the main plate portions of any two adjacent first high-efficiency rear-region anode plates 442 in the front and back is between 41 mm and 55 mm, such as 53 mm, so as to control the clearances between the left-side bent portions and the right-side bent portions of the main plates of the above-mentioned high-efficiency anode plates and the left-side bent portions and the right-side bent portions of the adjacent high-efficiency anode plates in the front and back within an appropriate range, thereby reducing the resistance of the dust-containing gas flow passing through the first high-efficiency front-region permeable anode plate row 43 or the first high-efficiency rear-region permeable anode plate row 44.

[0047] Of course, the cross-sections of the first high-efficiency front-region anode plates 432 and the first high-efficiency rear-region anode plates 442 can both be changed to be in the shape of a factory character ( / or in the shape of an integral symbol ∫) (see Figure 4 、 Figure 5 ) - at this time, the above-mentioned anode plates all include a main plate portion and a left-side bent portion or a right-side bent portion integrally connected thereto ( / or a main plate portion and a left-side bent portion and a right-side bent portion integrally connected thereto), and the distance F between the main plate portions of any two adjacent first high-efficiency front-region anode plates 432 in the front and back and the distance G between the main plate portions of any two adjacent first high-efficiency rear-region anode plates 442 in the front and back are both between 41 mm and 55 mm (such as 48 mm), and the cross-sectional dimensions of these two types of anode plates are the same.

[0048] When the cross-sections of the first high-efficiency front-region anode plates 432 and the first high-efficiency rear-region anode plates 442 are both trapezoidal grooves, or in the shape of a factory character, or in the shape of an integral symbol ∫ (see Figure 2 and Figures 4-5The angle α between the direction of the air inlet to the air outlet of the main body of the first high-efficiency front anode plate 432 and the direction of the dust-laden airflow at the outlet of the first high-efficiency front air outlet channel is 120°; while the angle β between the direction of the air inlet to the air outlet of the main body of the first high-efficiency rear transparent anode plate 442 and the direction of the dust-laden airflow at the inlet of the first high-efficiency rear air inlet channel is 120°. Of course, both angles α and β can be changed to any other value between 100° and 130°, such as 105° or 125°. Figures 1-5 In the diagram, each arrow located between the first (or second) front air outlet channel and the first (or second) rear air inlet channel represents the direction of dust-laden airflow at its location.

[0049] A straight-line side baffle 51, welded to the left or right front of each of the first high-efficiency front zone ordinary anode plate rows 47A, is provided—but it is not fixedly connected to the anode plate row to avoid reducing the rapping acceleration of the anode plate row. Similarly, a straight-line side baffle 51, welded to the left or right rear of each of the first high-efficiency rear zone ordinary anode plate rows 47B, is provided—but it is not fixedly connected to the anode plate row to avoid reducing the rapping acceleration of the anode plate row.

[0050] A V-shaped front baffle 52 is provided at the front end of each of the first high-efficiency front air outlet channels; the left and right sides of each V-shaped front baffle 52 are respectively tightly connected to the front rectangular tubes of the two adjacent first high-efficiency front plate fixing frames 431, so that the front end of each of the first high-efficiency front air outlet channels is closed, thereby preventing dust-laden airflow from flowing directly into the first high-efficiency front air outlet channel from the front of the first inverter electric field.

[0051] A pair of slightly curved plates 53 are provided between each of the first high-efficiency front zone air inlet channels and a first high-efficiency rear zone air outlet channel located directly behind it. The pair of slightly curved plates 53 includes two slightly curved plates that stand back to back but are not fixedly connected. The left and right sides of the slightly curved plate with the slot facing forward are respectively tightly connected to the rear rectangular tubes of the two adjacent first high-efficiency front zone electrode plate fixing frames 431, or one side is tightly connected to the rear rectangular tube of the adjacent first high-efficiency front zone electrode plate fixing frame 431, while the other side is tightly connected to the rear end of the adjacent first high-efficiency front zone ordinary anode plate row 47A, so that the ends of each first high-efficiency front zone air outlet channel are closed, thereby preventing dust-laden airflow from directly flowing from the first high-efficiency front zone air inlet channel into the first high-efficiency rear zone air outlet channel;

[0052] The left and right sides of the central inferior arc-shaped plate with the slot facing backward are respectively tightly connected to the front rectangular tubes of the two adjacent first high-efficiency rear zone electrode plate fixing frames 441, or one side is tightly connected to the front rectangular tube of the adjacent first high-efficiency rear zone electrode plate fixing frame 441, while the other side is tightly connected to the front end of the adjacent first high-efficiency rear zone ordinary anode plate row 47B. This can prevent dust-laden airflow from entering each first high-efficiency rear zone air outlet channel from the front, and reduce the turbulence intensity of dust-laden airflow at the front end of each first high-efficiency rear zone air outlet channel. This reduces the amount of secondary dust generated when a first high-efficiency rear zone cathode wire adjacent to the central inferior arc-shaped plate is vibrated, and is conducive to the settling of this secondary dust. It should be emphasized that the two central inferior arc plates 53 are not connected, so as to avoid the situation where the central inferior arc plate with the slot facing forward is closely connected to two anode plate rows, while the central inferior arc plate with the slot facing backward is closely connected to two other anode plate rows, which would significantly reduce the minimum vibration acceleration of the anode plates in the above-mentioned anode plate rows and affect their dust removal effect.

[0053] In addition, a slightly curved rear baffle plate 54 with the slot facing forward is provided at the rear end of each of the first high-efficiency rear air inlet channels. The left and right sides of each slightly curved rear baffle plate 54 are tightly connected to the rear rectangular tube ends of the two adjacent first high-efficiency rear electrode plate fixing frames 441, so as to seal the end of the first high-efficiency rear air inlet channel, thereby preventing the dust-laden airflow from flowing directly out of the first inverter current electric field from the first high-efficiency rear air inlet channel, and also reducing the turbulence intensity of the dust-laden airflow at the rear end of the first high-efficiency rear air inlet channel, thereby reducing the amount of secondary dust generated when the last cathode wire in the first high-efficiency rear cathode wire group 343 is rapped, and facilitating the settling of these secondary dust particles. It should be noted that the net distance between each inferior arc-shaped rear zone baffle 54 and the adjacent first high-efficiency rear zone cathode line must be significantly greater than the net distance between the first high-efficiency rear zone cathode line group 343 and the first high-efficiency rear zone transparent anode plate row 44, so as to avoid causing a drop in the breakdown voltage and operating voltage of the rear zone of the first inverter electric field.

[0054] Under the combined action of the aforementioned straight side baffles 51, V-shaped front baffles 52, mid-section inferior arc plates 53, and inferior arc rear baffles 54, the dust-laden airflow, after preliminary dust removal by the ordinary plate linear electric field, first flows into each of the first high-efficiency front zone air inlet channels, and then passes through multiple narrow channels of the first front zone set on one or both sides, that is, multiple narrow passages between multiple first high-efficiency front zone anode plates 432 set on one or both sides of the first high-efficiency front zone transparent anode plate row 43, and enters the corresponding one Alternatively, the airflow can flow directly into the first high-efficiency front zone air outlet channel through two first high-efficiency front zone air outlet channels. Then, the dust-laden airflow passes through multiple narrow channels in the first rear zone on both sides, that is, multiple narrow passages between multiple first high-efficiency rear zone anode plates 442 in the first high-efficiency rear zone transparent anode plate row 44 on both sides, and enters the corresponding two or four first high-efficiency rear zone air outlet channels. After being dusted by the first inverter current electric field, the dust-laden airflow flows out from the outlets of these first high-efficiency rear zone air outlet channels.

[0055] The second inverter electric field front zone includes nine second high-efficiency front zone cathode wire groups 353, eight second high-efficiency front zone transparent anode plate rows 45, and two second high-efficiency front zone ordinary anode plate rows 48A disposed on its left and right sides. Each second high-efficiency front zone ordinary anode plate row 48A is provided with four C480 anode plates. All nine second high-efficiency front zone cathode wire groups 353 are electrically connected to the negative high-voltage output terminal of the second inverter electric field front zone high-voltage power supply device 75, and each second high-efficiency front zone cathode wire group 353 is located in the corresponding second high-efficiency front zone air inlet channel or second high-efficiency front zone air outlet channel. The orientation of each second high-efficiency front zone transparent anode plate row 45 and each second front zone ordinary anode plate row 48A is parallel to the symmetrical center line of any second high-efficiency front zone air outlet channel. Each of the second high-efficiency front zone transparent anode plate rows 45 located on the left side of any second high-efficiency front zone air outlet channel is symmetrically distributed with another second high-efficiency front zone transparent anode plate row 45 located on its right side.

[0056] The second inverter electric field rear region includes nine second high-efficiency rear region cathode wire groups 363, eight second high-efficiency rear region transparent anode plate rows 46, and two second high-efficiency rear region ordinary anode plate rows 48B located on its left and right sides. Each second high-efficiency rear region ordinary anode plate row 48B is equipped with four C480 anode plates. All nine second high-efficiency rear region cathode wire groups 363 are electrically connected to the negative high-voltage output terminal of the second inverter electric field rear region high-voltage power supply device 76, and each second high-efficiency rear region cathode wire group 363 is located in the corresponding second high-efficiency rear region air inlet channel or second high-efficiency rear region air outlet channel. The orientation of each second high-efficiency rear region transparent anode plate row 46 and each second high-efficiency rear region ordinary anode plate row 48B is parallel to the symmetrical center line of any second high-efficiency rear region air inlet channel. Each of the second high-efficiency rear area transparent anode plate rows 46 located on the left side of any second high-efficiency rear area air inlet channel is symmetrically distributed with another second high-efficiency rear area transparent anode plate row 46 located on its right side.

[0057] It should be further noted that each of the second high-efficiency rear cathode wire groups 363 is not electrically connected to any of the second high-efficiency front cathode wire groups 353; in addition, the distance c between any two adjacent second high-efficiency rear cathode wire groups 363 is equal to the distance between any two adjacent second high-efficiency front cathode wire groups 353, and is also equal to the distance b between any two adjacent first high-efficiency rear cathode wire groups 343. Furthermore, each second high-efficiency front transparent anode plate row 45 is not fixedly connected to the second high-efficiency rear transparent anode plate row 46 located directly behind it, so as to avoid a significant decrease in the minimum rapping acceleration of the anode plates of both, thus affecting their dust removal effect.

[0058] Each second high-efficiency front cathode wire group 353 includes seven CS10B needle wires (i.e., second high-efficiency front cathode wires) with stronger discharge performance than CW09A waveform wires, which are fixedly installed on a second high-efficiency front double-mast cathode small frame 35. Each second high-efficiency rear cathode wire group 363 includes seven CW09A waveform wires (i.e., second high-efficiency rear cathode wires) fixedly installed on a second high-efficiency rear double-mast cathode small frame 36. However, it can be modified as follows: each second high-efficiency rear cathode wire group 353 includes seven V15 wires, while each second high-efficiency rear cathode wire group 363 includes seven CW09A waveform wires; or the former includes seven V15 wires with discharge performance weaker than CS10B needle wires, while the latter includes seven V0 wires. This ensures that the discharge performance of the cathode wires in the front regions of the first and second inverter electric fields is stronger than that of the cathode wires in the rear regions of the first and second inverter electric fields, and that the discharge performance of the cathode wires in the front and rear regions of the first inverter electric field is stronger than that of the cathode wires in the front and rear regions of the second inverter electric field. The discharge properties are designed to ensure that, on the one hand, the operating voltage and electric field strength of the rear region of the first (or second) inverter electric field are higher than those of the front region of the first (or second) inverter electric field, thereby further improving the dust removal efficiency of the first (or second) inverter electric field; on the other hand, the operating voltage and electric field strength of the front region (or rear region) of the second inverter electric field are significantly higher than those of the front region (or rear region) of the first inverter electric field, thereby further improving the dust removal efficiency of the first and second inverter electric fields.

[0059] Each second high-efficiency front-area twin-mast cathode small frame 35 also includes two second high-efficiency front-area main masts 351 and multiple second high-efficiency front-area horizontal tubes 352, while each second high-efficiency rear-area twin-mast cathode small frame 36 also includes two second high-efficiency rear-area main masts 361 and multiple second high-efficiency front-area horizontal tubes 362.

[0060] Each cathode wire in each of the second high-efficiency front zone cathode wire group 353 and the second high-efficiency rear zone cathode wire group 363 is, in the same manner as each cathode wire in each of the first high-efficiency front zone cathode wire group 333 and the first high-efficiency rear zone cathode wire group 343, arranged in the corresponding high-efficiency front zone ( / or high-efficiency rear zone) air inlet ( / or air outlet) channel (see...). Figures 2-3 It should be noted that the needle-shaped discharge bodies or V-shaped discharge bodies of the straight fishbone needle-punched wire, CS10A needle-punched wire, CS10B needle-punched wire, CW09A waveform line and V15 line in the above two inverter current electric fields, as well as the flat steel of V0 line, are all parallel to the direction of dust-laden gas flow at the outlet of the first high-efficiency front air outlet channel.

[0061] Each second high-efficiency front-area transparent anode plate row 45 includes a second high-efficiency front-area electrode plate fixing frame 451 and multiple second high-efficiency front-area anode plates 452 installed therein in a grid pattern. Each second high-efficiency rear-area transparent anode plate row 46 includes a second high-efficiency rear-area electrode plate fixing frame 461 and multiple second high-efficiency rear-area anode plates 462 installed therein in a grid pattern. Both the second high-efficiency front-area anode plates 452 and 462 can be rolled from thin steel plates, and their cross-sections are trapezoidal grooves, similar to those of the first high-efficiency front-area anode plates 432 and 442 (see...). Figure 2 , Figure 3 Moreover, the two types of anode plates have the same cross-sectional dimensions.

[0062] In each of the second high-efficiency front-zone transparent anode plate rows 45, the distance f between the main plates of any two adjacent second high-efficiency front-zone anode plates 452 is between 41mm and 55mm, for example, 48mm; while in each of the second high-efficiency rear-zone transparent anode plate rows 46, the distance g between the main plates of any two adjacent second high-efficiency rear-zone anode plates 462 is between 31mm and 40mm, for example, 35mm, to further improve the collection efficiency of each second high-efficiency rear-zone transparent anode plate row 46 for PM2.5 in the dust-laden airflow. However, provided that the dust concentration in the outlet airflow of the dry electrostatic precipitator meets the predetermined requirements, this distance g can be changed to be equal to the aforementioned distance f, in order to reduce the resistance of the dust-laden airflow through the second high-efficiency rear-zone transparent anode plate row 46.

[0063] The cross-sections of the second high-efficiency front anode plate 452 and the second high-efficiency front anode plate 462 can also be changed to be in the shape of a factory character, or in the shape of an integral symbol ∫, just like the first high-efficiency front anode plate 432 and the first high-efficiency front anode plate 442.

[0064] When the cross-sections of the second high-efficiency front anode plate 452 and the second high-efficiency rear anode plate 462 are both trapezoidal grooves (see...) Figure 3 The angle γ between the direction of the air inlet to the air outlet of the main body of the second high-efficiency front anode plate 452 and the direction of the dust-laden gas flow at the outlet of the second high-efficiency front air outlet channel is 120°; and the angle θ between the direction of the air inlet to the air outlet of the main body of the second high-efficiency rear anode plate 462 and the direction of the dust-laden gas flow at the inlet of the second high-efficiency rear air inlet channel is also 120°. Of course, the above-mentioned angles γ and θ can be changed to any other value between 100° and 130°, such as 105° or 125°.

[0065] Similar to the first inverter electric field, the second inverter electric field also features four straight side baffles 51, four V-shaped front baffles 52, five pairs of centrally curved plates 53, and four centrally curved rear baffles 54. Furthermore, the connection methods between each of these baffles and the side plates of the housing 20, or the second high-efficiency front-area transparent anode plate array 45, or the second high-efficiency rear-area transparent anode plate array 46, are the same as their connection methods with the side plates of the housing 20, or the first high-efficiency front-area transparent anode plate array 43, or the first high-efficiency rear-area transparent anode plate array 44. Therefore, the roles played by each of the straight side baffles 51, V-shaped front baffles 52, centrally curved rear baffles 54, and each pair of centrally curved plates 53 in the second inverter electric field are the same as their roles in the first inverter electric field.

[0066] As described above, the four types of anode plates—the first high-efficiency front anode plate 432, the first high-efficiency rear anode plate 442, the second high-efficiency front anode plate 452, and the second high-efficiency rear anode plate 462—have the same structure. Furthermore, the structures of the second high-efficiency front-area transparent anode plate array 45 and the second high-efficiency rear-area transparent anode plate array 46 are essentially the same as those of the first high-efficiency front-area transparent anode plate array 43 and the first high-efficiency rear-area transparent anode plate array 44, respectively. In addition, the environments in which the former two are located are roughly the same as those in which the latter two are located. Therefore, the roles played by the former two in the second inverter electric field are essentially the same as the roles played by the latter two in the first inverter electric field.

[0067] Within the second inverter electric field, under the combined action of the straight side baffles 51, the V-shaped front baffles 52, the middle inferior arc plates 53, and the inferior arc rear zone baffles 54, the dust-laden airflow treated by the first inverter electric field first flows into each of the second high-efficiency front zone inlet channels, then passes through multiple narrow channels of the second front zone set on one or both sides, enters the corresponding second high-efficiency front zone outlet channel, then flows directly into one or two second high-efficiency rear zone inlet channels that are unobstructed with it, then passes through multiple narrow channels of the second high-efficiency rear zone set on both sides, enters the corresponding two or four second high-efficiency rear zone outlet channels, and then flows out from the outlets of these second high-efficiency rear zone outlet channels—finally, the airflow after efficient dust removal is discharged from the dry electrostatic precipitator through the outlet box 12.

[0068] Finally, six more points need to be added:

[0069] First, if the dust concentration of the dust-laden airflow to be purified is relatively high, then based on the dry electrostatic precipitator, another ordinary plate-line electric field is added between the air inlet box 11 and the ordinary plate-line electric field, and the length of its shell 20 is extended accordingly, thereby constructing a dry electrostatic precipitator with higher dust removal efficiency and an inverter electric field with front and rear partitions.

[0070] Secondly, if the dust concentration of the dust-laden airflow to be purified is relatively low, then based on the aforementioned dry electrostatic precipitator with higher dust removal efficiency and front and rear partitioned inverter electric fields, the second inverter electric field is eliminated, and the length of its shell 20 is shortened accordingly, thereby creating a new dry electrostatic precipitator with appropriate dust removal efficiency and front and rear partitioned inverter electric fields.

[0071] Third, if the dust concentration in the airflow to be purified is relatively low, it can also be done as follows: Figure 1 Based on the dry electrostatic precipitator with front and rear partitioned inverter electric fields shown, the ordinary plate-wire electric field and / or the second inverter electric field are eliminated, and the length of its shell 20 is shortened accordingly. Moreover, in the case of eliminating only the ordinary plate-wire electric field, each first front zone cathode wire group 333 can be changed to include four tubular barbed wires or eight CS20A needle-punched wires, and each first rear zone cathode wire group 343 can be changed to include eight CS10A needle-punched wires. The barb main part of the tubular barbed wire and the needle-shaped discharge body of the CS20A needle-punched wire are parallel to the needle-shaped discharge body of the CS10A needle-punched wire, thereby creating another dry electrostatic precipitator with appropriate dust removal efficiency and front and rear partitioned inverter electric fields.

[0072] Fourth, in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "lateral," "longitudinal," "vertical," "horizontal," "left side," "right side," "front," "back," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0073] Fifth, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set with," "connected," "interlocked," and "connected" should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0074] Sixth, all the components used in this utility model are general standard parts or components known to those skilled in the art, and their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

Claims

1. A dry electrostatic precipitator with a front and rear partitioned inverter electric field, comprising an inlet chamber, a shell, and an outlet chamber, characterized in that: It also includes one or two inverter electric fields that use a rapping electrode method for dust removal; the inverter electric field includes a front region and a rear region; the front region includes multiple high-efficiency front region cathode wire groups and multiple high-efficiency front region transparent anode plate arrays arranged in alternating phases, while the rear region includes multiple high-efficiency rear region cathode wire groups and multiple high-efficiency rear region transparent anode plate arrays arranged in alternating phases, wherein each high-efficiency front region cathode wire group is not electrically connected to any high-efficiency rear region cathode wire group; the multiple high-efficiency front region cathode wire groups and the multiple high-efficiency rear region cathode wire groups are respectively electrically connected to the negative high-voltage output terminal of the high-voltage power supply device in the front region of the inverter electric field and the negative high-voltage output terminal of the high-voltage power supply device in the rear region of the inverter electric field, and the discharge performance of the high-efficiency front region cathode wires in the high-efficiency front region cathode wire groups is stronger than that of the high-efficiency rear region cathode wires in the high-efficiency rear region cathode wire groups.

2. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 1, characterized in that: Both the high-voltage power supply device in the front region of the inverter electric field and the high-voltage power supply device in the rear region of the inverter electric field are high-frequency power supplies or frequency converters.

3. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 1, characterized in that: The high-efficiency front-zone cathode wire in the high-efficiency front-zone cathode wire group and the high-efficiency rear-zone cathode wire in the high-efficiency rear-zone cathode wire group are respectively tubular barbed wire and CS10A needle wire, or respectively CS20A needle wire and CS10A needle wire, or respectively respectively a fishbone needle wire and CS10A needle wire, or respectively respectively CS10A needle wire and CS10B needle wire, or respectively respectively CS10B needle wire and CW09A waveform wire, or respectively respectively V15 wire and CW09A waveform wire, or respectively respectively V15 wire and V0 wire.

4. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 1, characterized in that: The high-efficiency front-area transparent anode plate array includes a high-efficiency front-area electrode plate fixing frame and multiple high-efficiency front-area anode plates installed in a grid-like manner within it. The high-efficiency rear-area transparent anode plate array includes a high-efficiency rear-area electrode plate fixing frame and multiple high-efficiency rear-area anode plates installed in a grid-like manner within it. Both the high-efficiency front-area anode plate and the high-efficiency rear-area anode plate include an electrode plate main part and an electrode plate left-side curved part and / or electrode plate right-side curved part integrated with it. Moreover, the cross-sectional dimensions of the high-efficiency front-area anode plate are the same as those of the high-efficiency rear-area anode plate.

5. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 4, characterized in that: The cross-sections of the high-efficiency front anode plate and the high-efficiency rear anode plate are all trapezoidal grooves, or all are F-shaped, or all are integral symbols ∫. In the high-efficiency front-area transparent anode plate array, the distance between the main plates of any two adjacent high-efficiency front-area anode plates is between 41mm and 55mm; in the high-efficiency rear-area transparent anode plate array, the distance between the main plates of any two adjacent high-efficiency rear-area anode plates is between 31mm and 40mm, or is equal to the distance between the main plates of any two adjacent high-efficiency front-area anode plates in the high-efficiency front-area transparent anode plate array. The angle between the setting direction of the air inlet end to the air outlet end of the main part of the high-efficiency front anode plate and the direction of the dust-laden airflow at the outlet of the high-efficiency front air outlet channel of the inverter electric field front area is between 100° and 130°. The angle between the direction of the air inlet end to the air outlet end of the main part of the high-efficiency rear anode plate and the direction of the dust-laden airflow at the inlet of the high-efficiency rear air inlet channel of the inverter electric field rear zone is also between 100° and 130°.

6. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 4, characterized in that: Each of the aforementioned high-efficiency front-area transparent anode plate arrays is not fixedly connected to the aforementioned high-efficiency rear-area transparent anode plate array located directly behind it; Between each high-efficiency front zone air inlet channel of the inverter electric field front zone and a high-efficiency rear zone air outlet channel of the inverter electric field rear zone located directly behind it, there is a pair of centrally curved plates; each pair of centrally curved plates includes two centrally curved plates that stand back to back but are not fixedly connected; the left and right sides of the centrally curved plate with the slot facing forward are respectively tightly connected to the rear ends of the two adjacent high-efficiency front zone electrode plate fixing frames, or one side is tightly connected to the rear end of the adjacent high-efficiency front zone electrode plate fixing frame, while the other side is tightly connected to the rear end of the adjacent high-efficiency front zone ordinary anode plate row; the left and right sides of the centrally curved plate with the slot facing backward are respectively tightly connected to the front ends of the two adjacent high-efficiency rear zone electrode plate fixing frames, or one side is tightly connected to the front end of the adjacent high-efficiency rear zone electrode plate fixing frame, while the other side is tightly connected to the front end of the adjacent high-efficiency rear zone ordinary anode plate row.

7. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 1, characterized in that: Both the front and rear regions of the inverter electric field are equipped with several cathode-top electromagnetic hammer rappers and several anode-top electromagnetic hammer rappers.

8. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 1, characterized in that: The discharge performance of the efficient front cathode line of the preceding inverter electric field is stronger than that of the efficient front cathode line of the following inverter electric field, and the discharge performance of the efficient rear cathode line of the preceding inverter electric field is stronger than that of the efficient rear cathode line of the following inverter electric field.

9. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to any one of claims 1 to 8, characterized in that: It also includes one or two ordinary plate-type electric fields located upstream of several inverter electric fields and cleaned by rapping electrodes.

10. A dry electrostatic precipitator with a front and rear partitioned inverter electric field according to claim 9, characterized in that: The conventional plate-wire electric field includes a front region and a rear region. Both the front and rear regions are equipped with several cathode-top electromagnetic hammer oscillators and several anode-top electromagnetic hammer oscillators. Each region includes multiple front-zone cathode wire groups and multiple rear-zone cathode wire groups, with each front-zone cathode wire group not electrically connected to any rear-zone cathode wire group. The multiple front-zone and rear-zone cathode wire groups are electrically connected to the negative high-voltage output terminals of the front-zone and rear-zone high-voltage power supply devices, respectively.

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