Transverse cathode wire and cathode frame of electric dust remover

Abstract

The invention relates to the field of electric dust removers, and provides a transverse cathode wire and a cathode framework of an electric dust remover, the cathode wire comprises a horizontally arranged cathode wire main body, a channel, an inlet joint, an outlet joint and a connector; the cathode frame comprises a cross beam, a vertical beam and a connecting seat. The cathode wire main body and the cathode frame can be connected through the arranged connector, and the cathode wire main body is horizontally arranged, so that the free length of the cathode wire main body can be greatly shortened, the inherent frequency of the cathode wire main body is remarkably improved, the airflow excitation frequency is effectively avoided, and the shaking phenomenon of the cathode wire main body is inhibited; the cooling medium is introduced into the channel in the cathode wire main body, so that the working temperature of the cathode wire main body can be obviously reduced, the problems of easy creep deformation, deformation and corrosion acceleration of the cathode wire main body in a high-temperature environment are effectively solved, and the normal use of the cathode wire main body is facilitated.

Description

Technical Field

[0001] This invention relates to the field of electrostatic precipitators, and more particularly to a horizontally positioned cathode wire and cathode frame for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators are one of the core devices for controlling dust pollution in industrial flue gas. Their working principle is to charge the dust with a high-voltage electric field and then capture it onto the dust collection plates under the action of the electric field force.

[0003] Traditional electrostatic precipitator cathode wires typically employ a vertically suspended structure, where the cathode wire hangs vertically downwards from the upper cathode frame and is tensioned or fixed at the bottom by a weight. This arrangement results in a relatively long free length of the cathode wire, which is prone to swaying under the scouring of high-speed flue gas. This not only affects the electric field distribution and reduces dust removal efficiency but also easily leads to fatigue fracture. Furthermore, the cathode wire is exposed to a high-temperature environment for a long time, making it susceptible to creep, deformation, and accelerated corrosion, further adversely affecting its normal use. Summary of the Invention

[0004] The present invention aims to provide a horizontally placed cathode wire and cathode frame for an electrostatic precipitator.

[0005] On one hand, the present invention provides a horizontally positioned cathode wire for an electrostatic precipitator, comprising: The cathode wire body is horizontally arranged and has a channel inside. An inlet connector and an outlet connector are respectively provided on both sides of the channel. The inlet connector and the outlet connector are respectively connected to an external cooling circulation system. Connectors are provided on both sides of the cathode wire body, and the cathode wire body is connected to the cathode frame through the connectors.

[0006] According to the present invention, a horizontally placed cathode wire of an electrostatic precipitator is provided. The cathode wire body includes a horizontally arranged outer tube and an inner tube. The outer tube is sleeved on the inner tube, and both ends of the outer tube are provided with end plates connected to the outer wall of the inner tube. The two end plates, the inner tube and the outer tube form the channel. The inlet connector and the outlet connector are respectively connected to the corresponding end plates, and the upper and lower side walls of the outer tube are respectively provided with spaced discharge spikes.

[0007] According to the present invention, an electrostatic precipitator with a horizontally placed cathode wire has an inner tube and an outer tube arranged coaxially, and a spiral guide vane arranged axially is provided between the inner tube and the outer tube. The inlet connector and the outlet connector correspond to the inlet and outlet of the spiral guide vane, respectively.

[0008] According to the present invention, a horizontally positioned cathode wire for an electrostatic precipitator has an inner tube in which both ends pass through the corresponding end plates and are connected to the connector. The connector is connected to the cathode frame by means of a pin.

[0009] According to the present invention, a horizontally positioned cathode wire of an electrostatic precipitator is provided, wherein the inlet connector and the outlet connector are both configured as rotary sealing connectors, the moving ring of the rotary sealing connector is connected to the corresponding end plate, and the stationary ring is connected to the guide pipe through a live connector, and the guide pipe is connected to the cooling water outlet pipe or cooling water return pipe of the cooling circulation system.

[0010] According to the present invention, a horizontally positioned cathode wire of an electrostatic precipitator is provided, wherein a flexible joint is provided on the guide pipe.

[0011] On the other hand, the present invention provides a cathode frame for an electrostatic precipitator, used to install the horizontal cathode wire of the electrostatic precipitator as described in any of the above claims. The cathode frame includes horizontal beams arranged at intervals between the upper and lower parts, and vertical beams are connected to both sides of the two horizontal beams. Multiple connecting seats are arranged at intervals along the vertical direction on the vertical beams. The connecting seats on the two vertical beams correspond to each other in pairs, and the connecting seats are provided with receiving grooves for accommodating the connectors. When the connectors are inserted into the receiving grooves, they are connected and fixed by a pin.

[0012] According to the present invention, a cathode frame for an electrostatic precipitator is provided, wherein the connecting seat is slidably connected to a support plate, and the support plate is connected to the corresponding vertical beam; the support plate is provided with an elastic structure, and the elastic structure is connected to the connecting seat.

[0013] According to the present invention, a cathode frame for an electrostatic precipitator includes an elastic structure comprising a mounting plate connected to a support plate, a horizontally arranged damper on the mounting plate, the end of the damper being connected to a connecting seat; a spring is sleeved on the outer periphery of the damper, the two ends of the spring abutting against the connecting seat and the mounting plate respectively.

[0014] According to the present invention, a cathode frame for an electrostatic precipitator is provided, wherein a guide rail is provided on the support plate, and the connecting seat is slidably connected to the support plate through the guide rail.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The connector allows for connection between the cathode wire body and the cathode frame. By arranging the cathode wire body horizontally, its free length can be significantly shortened, resulting in a marked increase in its natural frequency. This effectively avoids airflow excitation frequency and suppresses the shaking phenomenon of the cathode wire body. By introducing cooling medium into the channels inside the cathode wire body, the operating temperature of the cathode wire body can be significantly reduced. This effectively solves the problems of creep, deformation, and accelerated corrosion that easily occur in high-temperature environments, which is beneficial to the normal use of the cathode wire body.

[0016] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of a horizontally placed cathode wire in an electrostatic precipitator provided in an embodiment of the present invention; Figure 2 This is a planar sectional view of the outer tube provided in an embodiment of the present invention; Figure 3 This is a partial three-dimensional structural diagram of a horizontally placed cathode wire in an electrostatic precipitator provided in an embodiment of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the cathode frame of an electrostatic precipitator provided in an embodiment of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the cathode frame of an electrostatic precipitator provided in an embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of the horizontally mounted cathode wire provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of another three-dimensional structure after the horizontally placed cathode wire is installed, as provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Cathode wire body; 11. Outer tube; 12. Inner tube; 13. End plate; 14. Discharge spike; 15. Spiral guide vane; 2. Inlet connector; 3. Outlet connector; 4. Connector; 5. Channel; 6. Guide tube; 7. Flexible connector; 8. Cathode frame; 81. Crossbeam; 82. Vertical beam; 83. Connecting seat; 84. Support plate; 85. Flexible structure; 851. Mounting plate; 852. Damper; 853. Spring; 86. Intermediate vertical beam; 87. Guide rail. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example This invention provides a horizontally positioned cathode wire for an electrostatic precipitator. Please refer to [link / reference]. Figures 1-7 It includes: a cathode wire body 1, which is horizontally arranged and has a channel 5 inside. An inlet connector 2 and an outlet connector 3 are respectively provided on both sides of the channel 5. The inlet connector 2 and the outlet connector 3 are respectively connected to the external cooling circulation system. A connector 4 is provided on both sides of the cathode wire body 1, and the cathode wire body 1 is connected to the cathode frame 8 through the connector 4.

[0022] In this embodiment, the external cooling circulation system is used to introduce cooling medium into the channel 5 through the inlet connector 2. After the cooling medium flows inside the channel 5, it flows back to the cooling circulation system through the outlet connector 3 on the other side for cooling treatment and then continues to be circulated.

[0023] This scheme, through the connector 4, enables the connection between the cathode wire body 1 and the cathode frame 8. By setting the cathode wire body 1 to be horizontally arranged, the free length of the cathode wire body 1 can be greatly shortened, its natural frequency can be significantly increased, and the airflow excitation frequency can be effectively avoided, thereby suppressing the shaking phenomenon of the cathode wire body 1. By introducing cooling medium into the channel 5 inside the cathode wire body 1, the working temperature of the cathode wire body 1 can be significantly reduced, effectively solving the problems of creep, deformation and accelerated corrosion that are prone to occur in the cathode wire body 1 in high-temperature environments, which is conducive to the normal use of the cathode wire body 1.

[0024] Further optimization of the scheme: The cathode wire body 1 includes a horizontally arranged outer tube 11 and an inner tube 12. The outer tube 11 is sleeved on the inner tube 12. Both ends of the outer tube 11 are provided with end plates 13 connected to the outer wall of the inner tube 12. The two end plates 13, the inner tube 12 and the outer tube 11 form a channel 5. The inlet connector 2 and the outlet connector 3 are respectively fixedly connected to the corresponding end plates 13. The upper and lower side walls of the outer tube 11 are respectively provided with discharge spikes 14 arranged at intervals.

[0025] In this embodiment, both the outer tube 11 and the inner tube 12 can be made of stainless steel. The discharge spike 14 is fixed to the outer tube 11 by welding. The end plate 13 is fixed to both the outer tube 11 and the inner tube 12 by welding. After the cooling medium is introduced into the channel 5 through the inlet connector 2, the cooling medium flows in the channel 5, flows to the outside of the channel 5 through the outlet connector 3, and then flows back to the cooling circulation system.

[0026] The scheme is further optimized so that the inner tube 12 and the outer tube 11 are arranged coaxially, and a spiral guide vane 15 arranged along the axial direction is provided between the inner tube 12 and the outer tube 11. The inlet connector 2 and the outlet connector 3 correspond to the inlet and outlet of the spiral guide vane 15, respectively.

[0027] In this embodiment, the spiral guide vane 15 is made of stainless steel and is fixed to the outer tube 11 and the inner tube 12 by welding. The spiral guide vane 15 can guide the cooling medium, allowing it to flow in a spiral manner in the channel 5, thereby improving the cooling effect.

[0028] In a further optimized design, the two ends of the inner tube 12 are respectively passed through the corresponding end plates 13 and connected to the connector 4. The connector 4 is connected to the cathode frame 8 by means of a pin.

[0029] In this embodiment, by passing both ends of the inner tube 12 through to the outside of the outer tube 11 and fixing them with the connector 4, the cathode wire body 1 can be easily installed and disassembled.

[0030] The scheme is further optimized by setting both the inlet connector 2 and the outlet connector 3 as rotary sealing connectors. The rotating ring of the rotary sealing connector is fixedly connected to the corresponding end plate 13, and the stationary ring is detachably connected to the guide pipe 6 through the live connector. The guide pipe 6 is fixedly connected to the cooling water outlet pipe or cooling water return pipe of the cooling circulation system.

[0031] In this embodiment, by setting both the inlet connector 2 and the outlet connector 3 as rotary sealing connectors, it is possible to ensure that the cooling medium continuously, sealed, and leak-free flows into and out of the channel 5 inside the cathode wire body 1, even when the cathode wire body 1 is connected to tens of thousands of volts of high-voltage DC power and may experience slight oscillations. Furthermore, an elastic connector 7 is installed on the guide pipe 6. The elastic connector 7 can be set as a rubber elastic connector, which allows the cathode wire body 1 to move within a certain range in the axial direction, further improving the stability of the invention during use.

[0032] This invention also provides a cathode frame for an electrostatic precipitator, used to install the horizontally placed cathode wire of the electrostatic precipitator. The cathode frame 8 includes horizontal beams 81 arranged at intervals. Vertical beams 82 are fixedly connected to both sides of the two horizontal beams 81. Multiple connecting seats 83 are arranged at intervals along the vertical direction on the vertical beams 82. The connecting seats 83 on the two vertical beams 82 correspond to each other in pairs, and the connecting seats 83 are provided with receiving grooves for accommodating connectors 4. When the connectors 4 are inserted into the receiving grooves, they are connected and fixed by pins.

[0033] In this embodiment, the cathode wire body 1 can be placed horizontally on the cathode frame 8 by means of the corresponding connecting seats 83 on the vertical beam 82. The receiving groove provided on the connecting seat 83 facilitates quick connection and disassembly of the connector 4 and the connecting seat 83.

[0034] The scheme is further optimized so that the connecting seat 83 is slidably connected to the support plate 84, and the support plate 84 is fixedly connected to the corresponding vertical beam 82; the support plate 84 is provided with an elastic structure 85, and the elastic structure 85 is connected to the connecting seat 83.

[0035] In this embodiment, by setting the connecting seat 83 to a sliding connection and connecting it to the elastic structure 85, the cathode wire body 1 can move within a certain range along the axis after installation, and cooperate with the elastic joint 7 on the guide tube 6 to improve the stability of the cathode wire body 1 during use.

[0036] Further optimization of the scheme: the elastic structure 85 includes a mounting plate 851 fixedly connected to the support plate 84, a horizontally arranged damper 852 is provided on the mounting plate 851, and the end of the damper 852 is connected to the connecting seat 83; a spring 853 is sleeved on the outer periphery of the damper 852, and the two ends of the spring 853 abut against the connecting seat 83 and the mounting plate 851 respectively.

[0037] In this embodiment, the fixed end of the damper 852 is fixed to the mounting plate 851, and the moving end of the damper 852 is fixedly connected to the side wall of the connecting seat 83. The damper 852, in conjunction with the spring 853, allows the cathode wire body 1 to move within a certain range, while also providing a certain degree of buffering and energy dissipation, better addressing the thermal expansion and contraction of the cathode wire body 1. Furthermore, a guide rail 87 is fixed on the support plate 84, and the connecting seat 83 is slidably connected to the support plate 84 via the guide rail 87. The guide rail 87 ensures that the connecting seat 83 can only move linearly along a predetermined direction.

[0038] To further optimize the design, multiple intermediate vertical beams 86 are also provided between the two vertical beams 82, and the upper and lower ends of the multiple intermediate vertical beams 86 are fixed to the corresponding horizontal beams 81 respectively; the multiple cathode wire bodies 1 arranged from top to bottom can be connected in parallel or in series.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontally positioned cathode wire in an electrostatic precipitator, characterized in that, include: The cathode wire body (1) is arranged horizontally and has a channel (5) inside. An inlet connector (2) and an outlet connector (3) are respectively provided on both sides of the channel (5). The inlet connector (2) and the outlet connector (3) are respectively connected to the external cooling circulation system. A connector (4) is provided on both sides of the cathode wire body (1). The cathode wire body (1) is connected to the cathode frame (8) through the connector (4).

2. The horizontally positioned cathode wire of an electrostatic precipitator according to claim 1, characterized in that, The cathode wire body (1) includes a horizontally arranged outer tube (11) and an inner tube (12). The outer tube (11) is sleeved on the inner tube (12), and both ends of the outer tube (11) are provided with end plates (13) connected to the outer wall of the inner tube (12). The two end plates (13), the inner tube (12) and the outer tube (11) form the channel (5). The inlet connector (2) and the outlet connector (3) are respectively connected to the corresponding end plates (13), and the upper and lower side walls of the outer tube (11) are respectively provided with spaced discharge spikes (14).

3. The horizontally positioned cathode wire of an electrostatic precipitator according to claim 2, characterized in that, The inner tube (12) and the outer tube (11) are arranged coaxially. A spiral guide vane (15) is arranged axially between the inner tube (12) and the outer tube (11). The inlet connector (2) and the outlet connector (3) correspond to the inlet and outlet of the spiral guide vane (15), respectively.

4. The horizontally positioned cathode wire of an electrostatic precipitator according to claim 2, characterized in that, The two ends of the inner tube (12) pass through the corresponding end plates (13) and are connected to the connector (4). The connector (4) is connected to the cathode frame (8) by means of a pin.

5. The horizontally positioned cathode wire of an electrostatic precipitator according to claim 2, characterized in that, The inlet connector (2) and the outlet connector (3) are both configured as rotary sealing connectors. The rotating ring of the rotary sealing connector is connected to the corresponding end plate (13), and the stationary ring is connected to the guide pipe (6) through the live connector. The guide pipe (6) is connected to the cooling water outlet pipe or cooling water return pipe of the cooling circulation system.

6. The horizontally positioned cathode wire of an electrostatic precipitator according to claim 5, characterized in that, The guide tube (6) is provided with an elastic joint (7).

7. A cathode frame for an electrostatic precipitator, used to install the horizontally positioned cathode wire of the electrostatic precipitator according to any one of claims 1-6, characterized in that, The cathode frame (8) includes horizontal beams (81) arranged at intervals. Both sides of the two horizontal beams (81) are connected to vertical beams (82). Multiple connecting seats (83) are arranged at intervals along the vertical direction on the vertical beams (82). The connecting seats (83) on the two vertical beams (82) correspond to each other in pairs, and the connecting seats (83) are provided with receiving grooves for accommodating the connectors (4). When the connectors (4) are inserted into the receiving grooves, they are connected and fixed by pins.

8. The cathode frame of an electrostatic precipitator according to claim 7, characterized in that, The connecting seat (83) is slidably connected to the support plate (84), and the support plate (84) is connected to the corresponding vertical beam (82); the support plate (84) is provided with an elastic structure (85), and the elastic structure (85) is connected to the connecting seat (83).

9. The cathode frame of an electrostatic precipitator according to claim 8, characterized in that, The elastic structure (85) includes a mounting plate (851) connected to the support plate (84), and a horizontally arranged damper (852) is provided on the mounting plate (851). The end of the damper (852) is connected to the connecting seat (83). A spring (853) is sleeved on the outer periphery of the damper (852), and the two ends of the spring (853) abut against the connecting seat (83) and the mounting plate (851) respectively.

10. The cathode frame of an electrostatic precipitator according to claim 8, characterized in that, The support plate (84) is provided with a guide rail (87), and the connecting seat (83) is slidably connected to the support plate (84) through the guide rail (87).

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