Electrostatic dust collection device for photovoltaic tubular equipment

Abstract

The utility model discloses an electrostatic dust collection device for photovoltaic tubular equipment, which belongs to the technical field of dust collection, and comprises an enclosure frame, an electrostatic dust collection device, an electrostatic dust collection device, an electrostatic dust collection device and an electrostatic dust collection device, and is characterized in that the enclosure frame is arranged at one end of a furnace tube close to a furnace mouth; the anode dust collection plate is connected with the inner wall of the enclosure frame, and the anode dust collection plate is positioned on one side of the furnace tube; the cathode discharge rods are connected with the inner wall of the enclosure frame, and the cathode discharge rods are located on the side, opposite to the anode dust collection plates, of the furnace tube. The electrostatic dust collection device is arranged at the furnace mouth of the furnace tube, so that the risk that dust enters the furnace tube when the furnace door is opened and closed is reduced, and pollution to a process battery piece is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal technical field especially relates to a photovoltaic tubular equipment electrostatic precipitator. BACKGROUND

[0002] The photovoltaic tubular equipment is the process reaction chamber of the furnace tube type, such as diffusion furnace, PECVD (plasma enhanced chemical vapor deposition), LPCVD (low pressure chemical vapor deposition method) etc. In photovoltaic production, the furnace door of the tubular furnace tube needs to be opened and closed to send in and out process battery piece, and in this process, the environment of high-temperature furnace port is not up to standard, which leads to the dust particles from outside into the furnace tube, thereby polluting the process battery piece.

[0003] In the prior art, an air filter is usually installed on the top of the main machine table of the furnace tube, air is sent into the main machine table through the air filter, and the cleanliness of the whole main machine table is maintained. However, in actual production, the main machine table is large in space, and the loading and unloading piece automation is directly connected with the main machine table of the tubular machine, the air can be convected, and the air cleanliness at the furnace tube cannot be effectively guaranteed.

[0004] Therefore, a photovoltaic tubular equipment electrostatic precipitator is provided. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a photovoltaic tubular equipment electrostatic precipitator, and aims to solve or improve at least one of the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a photovoltaic tubular equipment electrostatic precipitator, comprising:

[0007] The frame is arranged at one end of the furnace tube close to the furnace port, and the frame is arranged around the furnace tube;

[0008] The anode dust collecting plate is fixedly connected with the inner wall of the frame, and the anode dust collecting plate is located at one side of the furnace tube;

[0009] A plurality of cathode discharge rods are fixedly connected with the inner wall of the frame, and the plurality of cathode discharge rods are located at the side opposite to the anode dust collecting plate of the furnace tube.

[0010] Optionally, the frame is fixedly connected with the outer wall of the bottom of the furnace tube, the furnace cover of the furnace tube is lifted upward after being opened, and a gap is arranged between the frame and the furnace cover of the furnace tube.

[0011] Optionally, the cathode discharge rod and the anode dust collecting plate are arranged upward and downward along the height direction, and the cathode discharge rod is located above the anode dust collecting plate.

[0012] Optionally, the anode dust collecting plate is an arc-shaped plate.

[0013] The utility model discloses the following technical effects: the anode dust collecting plate is grounded, and the cathode discharge rod is connected with high voltage direct current, thereby forming high voltage electric field between the anode dust collecting plate and the cathode discharge rod, because the anode dust collecting plate and the cathode discharge rod are arranged at one end of furnace tube close to the furnace mouth and are located at the opposite sides of the furnace tube, therefore, the high voltage electric field is distributed at the furnace mouth, when the dust-containing gas passes through the furnace mouth, is electrically separated, and the dust particle is combined with the negative ion and is electrified, and then is deposited on the surface of the anode dust collecting plate. The application installs the electrostatic precipitation device at the furnace mouth of the furnace tube on the basis of the air filter dust removal, reduces the risk of dust entering the inside of the furnace tube when the furnace door is opened and closed, and reduces the pollution to the process battery piece. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application and its description are used to explain the present application and are not used to limit the present application. In the drawings:

[0015] Figure 1 It is the structural schematic diagram of the furnace tube in the diffusion equipment of the utility model;

[0016] Figure 2 It is the structural schematic diagram when the furnace door is closed;

[0017] Figure 3 It is the structural schematic diagram when the furnace door is opened;

[0018] Figure 4 It is the structural schematic diagram of the anode dust collecting plate and the cathode discharge rod.

[0019] In the drawing: 1, frame; 2, furnace tube; 3, anode dust collecting plate; 4, cathode discharge rod; 5, carrier; 6, battery piece. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Electrostatic precipitation is a method of dust removal. Dusty gas is separated by electricity when passing through a high-voltage electrostatic field. Dust particles combine with negative ions to become negatively charged and then deposit on the anode surface. It is used to purify gas or recover useful dust particles in industries such as metallurgy and chemistry. The dust collection method uses an electrostatic field to ionize the gas and make the dust particles charged and adsorbed on the electrode. In a strong electric field, air molecules are ionized into positive ions and electrons. The electrons rush to the positive electrode and encounter dust particles, making the dust particles negatively charged and adsorbed on the positive electrode. The negative electrode is made of metal wires with different cross-sectional shapes, called discharge electrodes. The positive electrode is made of metal plates with different geometric shapes, called dust collection electrodes.

[0022] The electrostatic precipitator is a dust removal device made by using the principle of electrostatic precipitation. In the prior art, the electrostatic precipitator mainly consists of a body and a direct-current high-voltage power supply. Inside the body, metal dust collection electrodes (also known as electrode plates) and corona electrodes (also known as electrode wires) are arranged at a certain distance to establish an electric field. This electric field will produce a non-uniform electric field to ionize the gas molecules in the flue gas, generating a large number of electrons and ions. Under the action of electric field force, these electrons and ions move towards the two poles and collide with dust particles in the gas flow during the movement, making the dust particles charged. The charged dust particles separate from the gas flow under the action of electric field force and move towards the electrode plate or electrode wire with opposite polarity, and are finally adsorbed on the electrode plate or electrode wire, thereby effectively collecting the dust.

[0023] In some electrostatic precipitators, a rapping device and a dust hopper are also provided. The dust is collected by rapping the dust collection plate with the rapping device to make the dust fall into the dust hopper. Especially when used in an environment with a lot of dust, it is necessary to provide a rapping device and a dust hopper, thereby achieving automatic dust cleaning and improving work efficiency.

[0024] The power supply of the electrostatic precipitator consists of a control box, a step-up transformer and a rectifier. The voltage output of the power supply has a great influence on the dust removal efficiency, so the operating voltage of the electrostatic precipitator needs to be maintained at 40 to 75 kV or even above 100 kV. The high-voltage power supply system is powered by a step-up transformer, and the dust collection electrode of the dust collector is grounded. The low-voltage control system is used to control the rapping hammer, the dust discharge electrode, the dust conveying electrode and the temperature of several components.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] With reference to Figures 1-4 The present application provides a kind of photovoltaic tubular equipment electrostatic precipitator, comprising:

[0027] Frame 1, frame 1 is set in furnace tube 2 near the end of furnace mouth, frame 1 is around and is arranged in furnace tube 2 four quarters;

[0028] An anode dust collecting plate 3 is fixed to the inner wall of the enclosure 1 and is located on one side of the furnace tube 2.

[0029] A plurality of cathode discharge rods 4 are fixed to the inner wall of the enclosure 1 and are located on the side of the furnace tube 2 opposite the anode dust collecting plate 3.

[0030] The anode dust collecting plate 3 is grounded, and the cathode discharge rods 4 are connected to high-voltage direct current, thereby forming a high-voltage electric field between the anode dust collecting plate 3 and the cathode discharge rods 4. Since the anode dust collecting plate 3 and the cathode discharge rods 4 are arranged at the end of the furnace tube 2 close to the furnace port and on opposite sides of the furnace tube 2, the high-voltage electric field is distributed at the furnace port. When the dust-containing gas passes through the furnace port, the dust particles combine with negative ions to become negatively charged and then tend to discharge and deposit on the surface of the anode dust collecting plate. The present application installs an electrostatic precipitator at the furnace port of the furnace tube 2 on the basis of the air filter, thereby reducing the risk of dust entering the interior of the furnace tube when the furnace door is opened and reducing pollution to the process battery 6.

[0031] In a further optimization scheme, the enclosure 1 is fixed to the outer wall of the bottom of the furnace tube 2. The furnace cover of the furnace tube 2 is lifted upward after being opened outward, and a gap is provided between the enclosure 1 and the furnace cover of the furnace tube 2, thereby reserving an operation space.

[0032] In the present embodiment, the enclosure 1 is elliptical, the central axis of the enclosure 1 coincides with the axis of the furnace tube 2, the long radius of the enclosure 1 is arranged horizontally, and the short radius is arranged vertically. The short radius of the enclosure 1 is greater than the radius of the outer wall of the furnace tube 2, thereby not affecting the taking and placing of the carrier 5, the boat, and the battery 6 in the interior of the furnace tube 2. The furnace cover of the furnace tube 2 is lifted upward after being separated outward from the furnace tube 2 (this process is realized by a driving mechanism, and the specific process is not described herein), thereby opening the furnace port of the furnace tube 2. The bottom of the enclosure 1 is fixed to the outer wall of the bottom of the furnace tube 2, thereby not affecting the opening and closing of the furnace cover.

[0033] In a further optimization scheme, the cathode discharge rods 4 and the anode dust collecting plate 3 are arranged vertically along the height direction, and the cathode discharge rods 4 are located above the anode dust collecting plate 3.

[0034] The anode dust collecting plate 3 is arranged below, thereby causing the dust to deposit on the anode dust collecting plate 3 under the dual action of gravity and electric field force.

[0035] In a further optimization scheme, the anode dust collecting plate 3 is an arc-shaped plate. The anode dust collecting plate 3 is designed to be arc-shaped, which can better adapt to thermal expansion, reduce thermal stress caused by temperature changes, thereby prolonging the service life of the anode dust collecting plate 3; and simultaneously, the arc-shaped design improves the dust deposition area.

[0036] In actual production, the equipment is composed of five parts: a purification main machine (containing an upper computer console), a slide table feeding and discharging system, a horizontal feeding mechanism, a furnace body case (containing a switch cabinet, a poison discharge box, a transformer, a silicon controlled rectifier frame, a heating furnace body and an electrical control bottom plate) and an air source cabinet. Since the air filter is installed on the main machine in the prior art to perform overall dust removal, the dust amount at the furnace opening of the furnace pipe 2 is not large, and the cathode discharge rod 4 and the anode dust collecting plate 3 realize fine secondary dust removal. After the anode dust collecting plate 3 is used for a period of time, manual dust cleaning operation can be performed regularly.

[0037] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, 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 therefore cannot be understood as a limitation on the present application.

[0038] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art should fall within the protection scope of the present application as defined by the claims.

Claims

1. An electrostatic precipitator for a photovoltaic tube device, comprising: The utility model relates to a kind of arc discharge device, including: Surrounding frame (1), the surrounding frame (1) is arranged in furnace tube (2) close to one end of furnace mouth, the surrounding frame (1) is around and is arranged in the four around of furnace tube (2); Anode dust collecting plate (3), the anode dust collecting plate (3) is fixedly connected with the inner wall of the surrounding frame (1), and the anode dust collecting plate (3) is located in one side of the furnace tube (2); Multiple cathode discharge rods (4), the cathode discharge rod (4) is fixedly connected with the inner wall of the surrounding frame (1), and multiple cathode discharge rods (4) are located in the side of the furnace tube (2) opposite to the anode dust collecting plate (3).

2. The photovoltaic tubular plant electrostatic precipitator apparatus according to claim 1, characterized in that: The surrounding frame (1) is fixedly connected with the bottom outer wall of the furnace tube (2), the furnace cover of the furnace tube (2) is lifted upward after being opened, and the surrounding frame (1) is provided with gap between the furnace cover of the furnace tube (2).

3. The photovoltaic tubular plant electrostatic precipitator device according to claim 1, characterized in that: The cathode discharge rod (4) and the anode dust collecting plate (3) are arranged up and down along the height direction, and the cathode discharge rod (4) is located above the anode dust collecting plate (3).

4. The photovoltaic tubular plant electrostatic precipitator device according to claim 1, characterized in that: The anode dust collecting plate (3) is arc-shaped plate.

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