阅读说明：本技术 一种预荷电器 (Pre-charging electric appliance ) 是由 陈运法 刘海弟 李伟曼 于 2019-04-15 设计创作，主要内容包括：本发明公开了一种预荷电器,属于净化除尘设备技术领域,包括烟气流通管道,烟气流通管道包括烟气入口和烟气出口,烟气流通管道内沿其延伸方向设置有导电隔板,导电隔板将烟气流通管道分隔形成至少两个烟气通道,每个烟气通道对应的烟气流通管道的侧壁上均设置有放电电极,放电电极与对应的导电隔板之间形成电场。本发明通过导电隔板将烟气流通管道分隔形成至少两个烟气通道,能够在单位长度的烟气流通管道上设置更多的放电电极,增强电场强度,能够减小烟气流通管道的整体长度。而且,当烟气流通管道的长度一定,放电电极的数量一定时,导电隔板将烟气进行分流,在相同电场强度下,经过的烟气量减小,也有利于粉尘充分荷电。(The invention discloses a pre-charging device, which belongs to the technical field of purification and dust removal equipment and comprises a flue gas circulation pipeline, wherein the flue gas circulation pipeline comprises a flue gas inlet and a flue gas outlet, a conductive partition plate is arranged in the flue gas circulation pipeline along the extension direction of the flue gas circulation pipeline, the flue gas circulation pipeline is partitioned by the conductive partition plate to form at least two flue gas channels, a discharge electrode is arranged on the side wall of the flue gas circulation pipeline corresponding to each flue gas channel, and an electric field is formed between each discharge electrode and the corresponding conductive partition plate. The invention separates the flue gas circulation pipeline into at least two flue gas channels by the conductive partition plate, can arrange more discharge electrodes on the flue gas circulation pipeline with unit length, enhances the electric field intensity and can reduce the whole length of the flue gas circulation pipeline. And when the length of the flue gas circulation pipeline is fixed and the number of the discharge electrodes is fixed, the conductive partition plate divides the flue gas, so that the amount of the flue gas passing through is reduced under the same electric field intensity, and the full charge of dust is facilitated.)

1. The pre-charging device is characterized by comprising a flue gas circulation pipeline (1), wherein the flue gas circulation pipeline (1) comprises a flue gas inlet (101) and a flue gas outlet (102), a conductive partition plate (11) is arranged in the flue gas circulation pipeline (1) along the extension direction of the flue gas circulation pipeline, the flue gas circulation pipeline (1) is separated by the conductive partition plate (11) to form at least two flue gas channels, each flue gas channel corresponds to a discharge electrode (223) arranged on the side wall of the flue gas circulation pipeline (1), and an electric field is formed between the discharge electrode (223) and the corresponding conductive partition plate (11).

2. The charger according to claim 1, characterized in that said flue gas circulation duct (1) is a circular cylindrical structure, the width of said conductive partition (11) being equal to the internal diameter of said circular cylindrical structure.

3. The pre-charger according to claim 1, characterized in that the flue gas circulation duct (1) is a rectangular tubular structure, the width of the conductive partition (11) being equal to the width, length or diagonal length of the cross section of the rectangular tubular structure.

4. The pre-charger according to any of claims 1 to 3, characterized in that the length of said conductive partition (11) is equal to the length of said flue gas circulation duct (1).

5. The charger according to claim 1, further comprising a charging nozzle (22), wherein the charging nozzle (22) comprises a nozzle housing (221), a cavity (2210) is arranged in the nozzle housing (221), an opening (2211) is opened at one end of the nozzle housing (221), the discharge electrode (223) is positioned in the cavity (2210), and an end of the discharge electrode (223) is arranged towards the opening (2211).

6. The charger according to claim 5, characterized in that the other end of the charging nozzle (22) is provided with an air inlet (224), and the air inlet (224) is communicated with dust-free gas, and the dust-free gas can enter the flue gas flowing pipe (1) along the air inlet (224), the cavity (2210) and the opening (2211) in sequence.

7. The pre-charger according to claim 6, characterized in that a supporting plate (225) for supporting the discharge electrode (223) is disposed in the cavity (2210), a plurality of through holes (2251) are uniformly opened on the supporting plate (225), and the air inlet (224) and the opening (2211) are respectively disposed on two sides of the supporting plate (225).

8. The pre-charger according to claim 5, further comprising a high voltage power supply (21), one of the discharge electrode (223) and the conductive separator (11) being connected to a positive pole of the high voltage power supply (21) and the other being connected to a negative pole of the high voltage power supply (21), the conductive separator (11) being grounded.

9. The charger according to claim 8, wherein the charging nozzle (22) further comprises a high-voltage power supply lead-in wire (222) fixed in the nozzle housing (221), and both ends of the high-voltage power supply lead-in wire (222) are respectively connected to the high-voltage power supply (21) and the discharge electrode (223).

10. The pre-charging appliance according to claim 1, characterized in that it comprises an ash hopper arranged below the flue gas flow pipe (1) and a rapping mechanism arranged on the outer wall of the flue gas flow pipe (1).

Technical Field

The invention relates to the technical field of purification and dust removal equipment, in particular to a pre-charging device.

Background

High-efficiency dust removal is a very common industrial operation in various industrial fields such as metallurgy, energy, chemical industry, waste incineration and the like. The removal efficiency of the rear-end filtering material to particles can be greatly increased by charging the particles in the airflow (such as patent numbers CN201410148525.X and CN201510557777.2), because strong electrostatic repulsion is generated between the dust and the dust after the dust is charged, so that the powder cake formed on the surface of the filtering material is in a loose porous structure, and the filtering resistance is obviously reduced.

At present, the pre-charging electric appliance comprises a flue gas pipeline and a charged nozzle arranged on the flue gas pipeline, the charged nozzle and a grounding pipe wall opposite to the charged nozzle form an electric field to charge dust, the discharging current of each charged nozzle is limited, in order to fully charge the dust and ensure the charged effect, a plurality of charged nozzles are required to be arranged frequently, and in order to avoid electric field interference between the charged nozzles, two adjacent charged nozzles must be spaced at a certain distance, so that the length of the flue gas pipeline is longer, and the practicability of the pre-charging electric appliance is reduced.

Therefore, a pre-charger is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a pre-charging device, so that dust can be fully charged, the length of a flue gas pipeline is reduced, and the practicability of the pre-charging device is improved.

As the conception, the technical scheme adopted by the invention is as follows:

the utility model provides a pre-charge electric appliance, includes flue gas circulation pipeline, flue gas circulation pipeline includes flue gas entry and exhanst gas outlet, be provided with electrically conductive baffle along its extending direction in the flue gas circulation pipeline, electrically conductive baffle will the flue gas circulation pipeline separates and forms two at least flue gas passageways, every the flue gas passageway corresponds all be provided with discharge electrode on the lateral wall of flue gas circulation pipeline, discharge electrode and corresponding form the electric field between the electrically conductive baffle.

Further, the flue gas circulation pipeline is of a circular cylindrical structure, and the width of the conductive partition plate is equal to the inner diameter of the circular cylindrical structure.

Further, the flue gas circulation pipeline is of a circular cylindrical structure, and the width of the conductive partition plate is equal to the inner diameter of the circular cylindrical structure.

Further, the length of the conductive partition plate is equal to the length of the flue gas circulation pipeline.

Further, the pre-charging device further comprises a charged nozzle, the charged nozzle comprises a nozzle shell, a cavity is arranged in the nozzle shell, an opening is formed in one end of the nozzle shell, the discharge electrode is located in the cavity, and the end portion of the discharge electrode faces the opening.

Further, the other end of the charged nozzle is provided with an air inlet which is communicated with dust-free gas, and the dust-free gas can enter the flue gas circulation pipeline along the air inlet, the cavity and the opening in sequence.

Furthermore, a supporting plate for supporting the discharge electrode is arranged in the cavity, a plurality of through holes are uniformly formed in the supporting plate, and the air inlet and the opening are respectively located on two sides of the supporting plate.

Furthermore, the pre-charging device also comprises a high-voltage power supply, one of the discharge electrode and the conductive partition plate is connected to the positive pole of the high-voltage power supply, the other one of the discharge electrode and the conductive partition plate is connected to the negative pole of the high-voltage power supply, and the conductive partition plate is grounded.

Furthermore, the charged nozzle further comprises a high-voltage power supply lead-in wire fixedly arranged in the nozzle shell, and two ends of the high-voltage power supply lead-in wire are respectively connected with the high-voltage power supply and the discharge electrode.

Further, the pre-charging device comprises an ash bucket and a rapping mechanism, wherein the ash bucket is arranged below the flue gas circulation pipeline, and the rapping mechanism is arranged on the outer wall of the flue gas circulation pipeline.

The invention has the beneficial effects that:

according to the pre-charging device provided by the invention, the conductive partition plate is arranged in the flue gas circulation pipeline, the flue gas circulation pipeline is divided by the conductive partition plate to form at least two flue gas channels, and the electric field is formed between the discharge electrode and the corresponding conductive partition plate, so that more discharge electrodes can be arranged on the flue gas circulation pipeline in unit length, the electric field intensity is enhanced, dust can be fully charged, and the whole length of the flue gas circulation pipeline is favorably reduced. And when the length of the flue gas circulation pipeline is fixed, and the number of the discharge electrodes is fixed, the conductive partition plate divides the flue gas, so that the amount of the flue gas passing through is reduced under the same electric field intensity, and the full charge of dust is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a pre-charging device according to a first embodiment of the present invention;

FIG. 2 is a side view of a pre-load apparatus provided in accordance with an embodiment of the present invention;

fig. 3 is a cross-sectional view of a charged nozzle provided by the present invention.

Fig. 4 is a schematic structural diagram of a pre-charging device provided in the second embodiment of the present invention;

fig. 5 is a top view of a pre-charging device provided in the second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a pre-charging device provided in the third embodiment of the present invention;

fig. 7 is a top view of a pre-charging device provided in the third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a pre-charging device provided in the fourth embodiment of the present invention;

fig. 9 is a top view of a pre-charging device provided in accordance with a fourth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a pre-charging device provided in the fifth embodiment of the present invention;

fig. 11 is a top view of a pre-charging device according to a fifth embodiment of the present invention.

In the figure:

1. a flue gas circulation duct; 101. a flue gas inlet; 102. a flue gas outlet; 11. a conductive separator;

21. a high voltage power supply; 22. a charging nozzle; 221. a nozzle housing; 2210. a cavity; 2211. an opening; 222. a high voltage power supply lead-in; 223. a discharge electrode; 224. an air inlet; 225. a support plate; 2251. a vent hole;

3. a dust-free gas pipeline.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.