CN219850143U - Large-scale electrostatic field and flue gas purification device - Google Patents

Abstract

The utility model relates to the technical field of flue gas purification devices, and particularly discloses a large electrostatic field and a flue gas purification device. According to the utility model, the support rod is fixedly connected between the two cathode frames of the electrostatic field, the cathode plate arranged on the support rod is provided with the mounting hole larger than the sectional area of the support rod, the outer wall surface of the support rod is attached with a plurality of bearing plates, the bearing plates fill gaps between the support rod and the cathode plate, and the bearing plates and the support rod form a whole to support the cathode plate. The flue gas purifying device provided with the electrostatic field has all the advantages of the electrostatic field.

Description

Large-scale electrostatic field and flue gas purification device

Technical Field

The utility model relates to the technical field of flue gas purification, in particular to a large electrostatic field and a flue gas purification device.

Background

The electrostatic dust collector comprises a plurality of negative plates and positive plates which are arranged at intervals, and when the flue gas passes through the space between the negative plates and the positive plates, impurities in the flue gas are adsorbed by the positive plates, so that the flue gas purifying effect is achieved.

In order to ensure the adsorption effect of the electrostatic field, in some large-sized electrostatic fields, a large number of cathode plates are generally provided. After the quantity of negative plates increases, the whole negative plate has great quality, and former support negative plate makes the unsettled side pipe between the anode plate of negative plate will not bear the weight of negative plate, and side pipe will produce deformation. When the square tube is pressed down by the cathode plate to deform, the middle part of the square tube is bent downwards, the cathode plate fixed on the square tube is inclined, the distance (polar distance) between the cathode plate and the anode plate is changed, and an electric field is unstable after the polar distance is changed.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

The utility model discloses a large electrostatic field and a flue gas purifying device, which are used for improving the problem of bending of a support rod for supporting a cathode plate in the large electrostatic field.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a large electrostatic field comprising:

two side brackets arranged oppositely;

the two ends of the corner protector are fixedly connected with the two side brackets respectively, and the corner protector is arranged at the corners of the side brackets;

a plurality of anode plates which are arranged on the corner protector at intervals;

the two cathode frames are respectively arranged at one side of the side bracket far away from the anode plate, and are connected with the side bracket in an insulating way;

the two ends of the supporting rod respectively penetrate through the two side brackets and are fixedly connected with the two cathode brackets;

the cathode plates are arranged on the supporting rods at intervals, the left side and the right side of each cathode plate are anode plates, the cathode plates are provided with mounting holes for the supporting rods to pass through, and the area of each mounting hole is larger than the sectional area of each supporting rod;

the bearing plate is attached to the outer wall of the supporting rod, and fills a gap between the supporting rod and the cathode plate and is used for bearing the cathode plate.

Preferably, the support rods are provided with a plurality of support rods, and the plurality of support rods are respectively arranged on the corners of the cathode plate and the gravity center line of the cathode plate.

Preferably, the edge of the cathode plate is provided with spikes.

Preferably, through holes are formed in the cathode plate, and spines are formed in the edges of the through holes of the cathode plate.

Preferably, the through holes are arranged in an array.

Preferably, a first avoiding portion is arranged on the anode plate, and the first avoiding portion is used for avoiding the supporting rod and the bearing plate.

Preferably, the corner protector is provided with a mounting groove, and the corner of the anode plate is inserted into the mounting groove.

Preferably, a second avoiding part is arranged on the cathode plate, and the second avoiding part is used for avoiding the corner protector.

Preferably, the electrostatic field further comprises an insulator, one end of the insulator is fixedly connected with the cathode frame, and the other end of the insulator is fixedly connected with the side support.

A flue gas cleaning device comprising a large electrostatic field as described above.

Compared with the prior art, the utility model has the beneficial effects that:

according to the large electrostatic field provided by the utility model, the bearing plate is arranged at the outer wall of the supporting rod, and the supporting rod and the bearing plate are integrally clamped in the mounting hole of the cathode plate after being combined, so that the bearing capacity of the supporting rod is greatly improved, and the supporting rod is prevented from bending under the action of gravity of the cathode plate.

The utility model also provides a flue gas purifying device which comprises the large electrostatic field and has all the advantages of the electrostatic field.

Drawings

FIG. 1 is a schematic diagram of an electrostatic field according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an installation structure of a strut in an electrostatic field according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an installation structure of a support rod and a cathode plate according to an embodiment of the present utility model;

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a schematic view of a mounting structure of a cathode frame and a side frame according to an embodiment of the present utility model;

FIG. 6 is a front view of a cathode plate according to one embodiment of the utility model;

figure 7 is a front view of an anode plate according to an embodiment of the present utility model;

fig. 8 is an enlarged view of the a portion structure in fig. 3;

fig. 9 is an enlarged view of the B-section structure in fig. 6.

Description of main reference numerals: 10-side brackets, 11-third avoidance parts, 20-corner protectors, 21-mounting slots, 30-anode plates, 31-first avoidance parts, 32-inserting sheets, 40-cathode brackets, 50-supporting rods, 60-cathode plates, 61-mounting holes, 611-square parts, 612-arrow parts, 62-spines, 63-through holes, 64-second avoidance parts, 65-protruding sheets, 70-bearing plates and 80-insulators.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the utility model will be further described with reference to the examples and the accompanying drawings.

Examples

The electrostatic dust collector has excellent flue gas cleaning effect, and is widely applied to various flue gas cleaning fields, such as kitchen range hoods, industrial tail gas cleaning devices and other scenes in which particles in flue gas need to be treated.

The electrostatic field is generally used for adsorbing particles and is generally composed of a cathode plate and an anode plate which are arranged on different screws at intervals, wherein the cathode plate and the anode plate are oppositely arranged, when the cathode plate discharges, an electric field is formed between the cathode plate and the anode plate, and particles carried in flue gas passing through the middle of the cathode plate and the anode plate move towards the anode plate under the action of the electric field and are adsorbed by the anode plate.

When treating a large flow of flue gas containing particles, an anode plate having a larger dust collection area (an area of the anode plate for adsorbing particulate matters) is generally selected, and in general, a technician increases the dust collection area by increasing the number of anode plates. On the basis of the increase in the number of anode plates, the number of cathode plates is also required to be increased.

Because the negative plate is suspended through the supporting rods and arranged between the positive plates, after the number of the negative plates is increased, the original supporting rods cannot bear the heavy pressure of the negative plates, and at the moment, the supporting rods can bend and deform under the action of the gravity of the negative plates, so that the negative plates fixed on the supporting rods are not vertical any more, the polar distance of an electrostatic field (the distance between the negative plates and the positive plates) is changed, the electrostatic field discharge is abnormal, and the flue gas purifying effect is poor.

The utility model discloses a large electrostatic field, wherein a support rod 50 is fixedly connected between two cathode frames 40 of the electrostatic field, a cathode plate 60 arranged on the support rod 50 is provided with a mounting hole 61 larger than the sectional area of the support rod 50, a plurality of bearing plates 70 are attached to the outer wall surface of the support rod 50, the bearing plates 70 fill gaps between the support rod 50 and the cathode plate 60, the bearing plates 70 and the support rod 50 form a whole to support the cathode plate 60, the whole bearing capacity is greatly enhanced, the cathode plate 60 can be well borne, the deformation of the support rod 50 is further avoided, the polar distance of the electrostatic field is ensured to be kept in a proper range, and the electrostatic field maintains the flue gas purifying effect.

Specifically, referring to fig. 1 and 2, the large electrostatic field disclosed in the present utility model includes two opposite side brackets 10, and a gap between the two side brackets 10And the plurality of corner protectors 20, two ends of each corner protector 20 are fixedly connected with the two side brackets 10 respectively, and after the corner protectors 20 are fixedly connected with the side brackets 10, an integral body is formed between each corner protector 20 and each side bracket 10. The corner protector 20 is arranged at the corner position of the side brackets 10, a plurality of anode plates 30 are arranged on the corner protector 20, the anode plates 30 are arranged between the two side brackets 10 at intervals, cathode frames 40 are arranged on one sides, away from the anode plates 30, of the two side brackets 10, the cathode frames 40 are arranged in two, and the cathode frames 40 are in insulating connection with the side brackets 10. A support bar 50 is disposed between the two cathode frames 40, both ends of the support bar 50 respectively pass through the two side frames 10, and both ends of the support bar 50 are respectively fixedly connected with the two cathode frames 40, and the support bar 50 is not connected with the side frames 10. A plurality of cathode plates 60 are fixed on the support rod 50, the cathode plates 60 are arranged between the two side brackets 10 at intervals, and the left side and the right side of each cathode plate 60 are anode plates 30.

After the corner protector 20 is fixedly connected with the corners of the side support 10, the corner protector 20 and the side support 10 form a whole, and the whole is named as an electrostatic field frame. After the electrostatic field is placed to the working position, the frame is abutted with the mounting position. When the anode plate 30 is mounted on the corner protector 20, the anode plate 30 is supported by the whole frame, and the corner protector 20 is generally thick, so that the anode plate 30 can be well supported by the corner protector 20, and the distance between two adjacent anode plates 30 can be kept stable.

The cathode plate 60 is generally provided with mounting holes 61, the mounting holes 61 being larger than the sectional area of the struts 50 so that the struts 50 can smoothly pass through the cathode plate 60. The outer walls of the struts 50 are fitted with a carrier plate 70, the carrier plate 70 is filled in the gap between the struts 50 and the cathode plate 60, and the carrier plate 70 is used for carrying the cathode plate 60. After the bearing plate 70 fills the gap between the support rod 50 and the cathode plate 60, the bearing plate 70 thickens the support rod 50, so that the support rod 50 has enough strength to support the cathode plate 60, and the support rod 50 is prevented from bending under the gravity action of the cathode plate 60. And the supporting rod 50 and the bearing plate 70 are tightly abutted on the cathode plate 60, so that the position of the cathode plate 60 is relatively fixed, and the cathode plate 60 is prevented from shaking when flue gas passes through.

It should be noted that the strut 50 in the present utility model is suitable for a general electrostatic field, and the strut 50 may be a round rod or a square rod, which is easy to purchase, and the strut 50 can be cut into a desired length according to practical requirements of use.

Preferably, in one embodiment of the present utility model, as illustrated in FIG. 3, the struts 50 are square bars, such that the carrier plate 70 can likewise be easily purchased angle irons, of course matching the dimensions of the square bars. After the square rods pass through the mounting holes 61, the carrier plate 70 is inserted into the gap between the square rods and the cathode plate 60 block by block. The number of carrier plates 70 inserted into the gap should be based on the gap being filled.

Referring to fig. 6, 8 and 9, in order to allow the carrier plate 70 to be firmly coupled to the cathode plate 60 as a whole, which is formed by the carrier plate 70 and the struts 50, when inserted into the gap, the mounting holes 61 are shaped as square portions indicated by broken line portions in fig. 9 and arrow portions 612 located under the square portions. Wherein square sections are used for square tubes and arrow sections 612 are used for stacking carrier plates 70 (angle irons). After the square pipe is inserted into the square portion 611, the carrier plates 70 are inserted one by one at the arrow-head portion 612 until the carrier plates 70 fill up the arrow-head portion 612.

Further, as shown in fig. 9, in order to stabilize the whole of the cathode plate 60 that combines the carrier plate 70 with the square tube, that is, the cathode plate 60 cannot slide with respect to the square tube, the square tube is provided with a slot (not shown) for inserting the tab 65, and the tab 65 is provided on both sides of the upper portion of the square portion 611 to be engaged with the square tube.

Referring to fig. 2, in the case where a plurality of cathode plates 60 are provided, a plurality of slots should be provided in the square tube. Referring to fig. 9, in the installation, the square tube is fixed by a jig, that is, one end of the corner protector 20 is fixedly connected to one side bracket 10, then the cathode frame 40 is fixedly and insulated from the side bracket 10, and finally the square tube is fixed to the cathode frame 40. The arrow portion 612 of the cathode plate 60 is then abutted against the lower surface of the square tube, and then the cathode plate 60 is pushed to slide on the square tube until the cathode plate 60 moves to a position where the tab 65 corresponds to the slot on the square tube, and then the cathode plate 60 is moved downward so that the tab 65 is combined with the slot. The other cathode plates 60 are then mounted in succession in the same step.

Five mounting holes 61 are provided on the cathode plate 60 as illustrated in fig. 6, and five square tubes should be simultaneously fixed to the cathode frame 40.

Of course, after fixing the corner protector 20, the anode plate 30 needs to be installed in the gap of the cathode plate 60 at a time interval, and should be the anode plate 30 near the side bracket 10 to avoid the smoke from contaminating the side bracket 10.

The number of the carrier plates 70 is determined according to the number of the cathode plates 60, and the more the number of the cathode plates 60 is set, the more the number of the carrier plates 70 are inserted into the gap. In order to enable the whole of the square tube and the carrier plate 70 to be tightly abutted against the cathode plate 60, the size of the mounting holes 61 may be determined according to the number of carrier plates 70 to be placed as needed. Of course, it is also possible to provide the mounting holes 61 large enough and to fill the gap with the carrier plates 70 so that the square tubes can carry enough cathode plates 60.

Further, as shown in fig. 7, the corner of the anode plate 30 is provided with an insert 32, the corner protector 20 is also a square tube, the corner protector 20 is provided with a mounting groove 21 (not shown in the figure) corresponding to the insert 32 of the anode plate 30, and the insert 32 is combined with the mounting groove 21 to limit the anode plate 30, so that the positions of the anode plate 30 and the square tube are relatively stable, and the anode plate 30 is ensured not to shake in the flue gas flowing process. Meanwhile, the corner protector 20 can also support the electrostatic field well after the electrostatic field is installed in the flue gas cleaning device.

Further, a plurality of struts 50 are provided, and the plurality of struts 50 are respectively disposed at corners and a center line of gravity of the cathode plate 60. The support rods 50 arranged at the corners of the cathode plate 60 can ensure that the cathode plate 60 is in a posture perpendicular to the support rods 50, and the support rods 50 arranged on the gravity center line of the cathode plate 60 can well support the cathode plate 60, so that the cathode plate 60 is prevented from rotating under the action of gravity.

It will be appreciated that the gravity center line is a vertical line passing through the center of gravity of the cathode plate 60.

When the electrostatic field is assembled, a flow channel for the flue gas to circulate is formed between the cathode plate 60 and the anode plate 30, and the flue gas passes between the cathode plate 60 and the anode plate 30, and then the particles in the flue gas are adsorbed by the anode plate 30 under the action of the electric field.

Specifically, referring to fig. 2, 6 and 7, since the support rod 50, the support plate 70, the corner protector 20, and the cathode plate 60 and the anode plate 30 are not electrically connected, the anode plate 30 is provided with the first avoiding portion 31, the cathode plate 60 is provided with the second avoiding portion 64, and the side bracket 10 is provided with the third avoiding portion 11. All of the relief is provided to avoid electrical communication between the cathode plate 60 and the anode plate 30.

Referring to fig. 2 and fig. 5 to 7, the first relief portion 31, the second relief portion 64, and the third relief portion 11 are through holes 63 or notches. The shapes of the first relief portion 31, the second relief portion 64, and the third relief portion 11 are not limited.

The first relief 31 may be circular, square, oval or other shaped aperture. Of course, care should be taken when punching holes in the anode plate 30, so as to ensure that the anode plate 30 is not electrically connected to the supporting rod 50 and the carrier plate 70, and the size of the holes should not be too large to keep the anode plate 30 having a sufficiently large dust collecting area.

The second relief portion 64 of the cathode plate 60 for relieving the corner protector 20 is located at the corner of the cathode plate 60 as shown in fig. 6, where the second relief portion 64 is provided as a notch. Likewise, in order to ensure that the cathode plate 60 discharges to the anode plate 30, the area of the notch is equal to the area of the notch, which is not suitable for being excessively large, in order to ensure that the cathode plate 60 discharges to the anode plate 30, so that the first support rod 50 and the cathode plate 60 cannot be electrically connected.

The third relief 11 may be circular, square, oval or other shaped aperture. Of course, care should be taken when punching holes in the side frames 10 so as to ensure that the side frames 10 are not electrically connected to the struts 50 and the carrier plates 70.

More specifically, referring to fig. 5, the electrostatic field further includes an insulator 80, one end of the insulator 80 is fixedly connected to the cathode holder 40, and the other end is fixedly connected to the side bracket 10, thereby enabling the cathode holder 40 to be electrically connected to the side bracket 10. Of course, the insulator 80 only insulates between the cathode frame 40 and the side frame 10, and is an insulator commonly used by those skilled in the art. The insulator 80 may be replaced with other products having the same effect.

As shown in fig. 6 and 9, in order to enhance the discharge effect of the cathode plate 60, a spike 62 is provided at the edge of the cathode plate 60, and a tip discharge is formed at the spike 62, so that the discharge effect of the cathode plate 60 is better and the flue gas purifying effect of the electrostatic field is better.

Further, in order to make the discharge effect of the cathode plate 60 better, a through hole 63 is provided on the cathode plate 60, and the cathode plate 60 is provided with spikes 62 at the edge of the through hole 63, so that the number of spikes 62 on the cathode plate 60 is more.

The through holes 63 are arranged on the cathode plate 60 in an array manner, so that the cathode plate 60 is provided with more spikes 62, and the discharge effect of the cathode plate 60 is better.

The through holes 63 are generally provided as strip-shaped holes so that the number of the spikes 62 distributed on the cathode plate 60 is greater to achieve a better discharge effect.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. A large electrostatic field comprising:

two side brackets arranged oppositely;

the two ends of the corner protector are fixedly connected with the two side brackets respectively, and the corner protector is arranged at the corners of the side brackets;

a plurality of anode plates which are arranged on the corner protector at intervals;

the two cathode frames are respectively arranged at one side of the side bracket far away from the anode plate, and are connected with the side bracket in an insulating way;

the two ends of the supporting rod respectively penetrate through the two side brackets and are fixedly connected with the two cathode brackets;

the cathode plates are arranged on the supporting rods at intervals, the left side and the right side of each cathode plate are anode plates, the cathode plates are provided with mounting holes for the supporting rods to pass through, and the area of each mounting hole is larger than the sectional area of each supporting rod;

the bearing plate is attached to the outer wall of the supporting rod, and fills a gap between the supporting rod and the cathode plate and is used for bearing the cathode plate.

2. A large electrostatic field according to claim 1, wherein a plurality of the struts are provided, and a plurality of the struts are provided at corners of the cathode plate and on a center of gravity line of the cathode plate, respectively.

3. A large electrostatic field according to claim 1, wherein the edges of the cathode plate are provided with spikes.

4. A large electrostatic field according to claim 1 or 3 wherein the cathode plate is provided with a through hole and the cathode plate is provided with spikes at the edges of the through hole.

5. A large electrostatic field according to claim 4, wherein the array of through holes is arranged.

6. The large electrostatic field according to claim 1, wherein the anode plate is provided with a first avoiding portion, and the first avoiding portion is configured to avoid the strut and the carrier plate.

7. A large electrostatic field according to claim 1, wherein the corner protector is provided with a mounting slot, and the corner of the anode plate is inserted into the mounting slot.

8. A large electrostatic field according to claim 7 wherein the cathode plate is provided with a second avoidance portion for avoiding the corner protector.

9. A large electrostatic field according to claim 1, further comprising an insulator, one end of which is fixedly connected to the cathode frame and the other end of which is fixedly connected to the side frame.

10. A flue gas cleaning device comprising a large electrostatic field according to any one of claims 1 to 9.