Cathode tensioning device of wet-type electric dust remover
By designing a multi-directional purge port and horn connection structure in the cathode tensioning device of the wet electrostatic precipitator, combined with the fiberglass material, the insulation problems and high cost problems caused by flue gas fluctuations are solved, and the stable operation and cost saving of the device are achieved. .
Patent Information
- Application Number
- CN202420976489.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The cathode tensioning device of the existing wet electrostatic precipitator is prone to decline in insulation level when the flue gas fluctuates greatly, resulting in unstable operation of the equipment and high cost. The connection area is prone to gather smoke and water droplets, affecting the insulation performance.
A cathode tensioning device is designed that includes two different directions of purge ports and trumpet shapes connected to the flared shell. It is made of fiberglass material to ensure that the hot air purge direction is comprehensive and strong, avoiding the accumulation of smoke and dust particles, and Reduce smoke and water droplet accumulation through the form of a flap.
Effectively keep the device internal dry and insulated, avoid high-voltage discharge, reduce costs, and ensure the stable operation and safety of the wet electrostatic precipitator.
Smart Images
Figure CN222287581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cathode tensioning device for a wet electrostatic precipitator, belonging to the field of a flue gas purification device after wet desulfurization in a factory. Background Art
[0002] The cathode tensioning device is an important component of the wet electrostatic precipitator equipment. Its main function is to tighten and fix the lower overall frame of the cathode system of the wet electrostatic precipitator during operation, so that it will not be disturbed by the flow of flue gas, causing the safe distance between the cathode and anode of the wet electrostatic precipitator to be shortened, resulting in unstable discharge operation of the equipment.
[0003] The existing wet electrostatic precipitator cathode tensioning device has the following main shortcomings:
[0004] 1. At present, most manufacturers only have one hot air purge port for the cathode tensioning device to transport hot air inside it to maintain the insulation of the inner wall of the tensioning device and the pull rod insulator. The purge direction and function of the purge port are very limited. Once the flue gas entering the wet electrostatic precipitator at the front end fluctuates greatly, the wet flue gas and dust and other particles will accumulate and deposit inside the cathode tensioning device, causing the insulation level inside the tensioning device to drop significantly, causing high-voltage discharge and making the wet electrostatic precipitator unable to operate stably;
[0005] 2. The main body of the tensioning device is made of stainless steel or carbon steel lined with glass fiber reinforced plastic anti-corrosion material, which is expensive and not conducive to cost reduction and efficiency improvement for enterprises;
[0006] 3. The front interface of the tensioning device and the shell interface of the wet electrostatic precipitator are fixed with a straight tube connection. Due to the limitation of its structural form, smoke and water droplets are very easy to accumulate in this part, which causes the insulation level of the tensioning device to decrease, resulting in high-voltage discharge and the wet electrostatic precipitator cannot operate stably.
[0007] In view of the fact that the selection of cathode tensioning device has an important influence on wet electrostatic precipitator manufacturers, a cathode tensioning device which is safer, has a lower cost and can ensure the safe and stable operation of the wet electrostatic precipitator is proposed. Summary of the invention
[0008] In view of the deficiencies in the prior art, the utility model aims to provide a cathode tensioning device for a wet electrostatic precipitator.
[0009] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:
[0010] A cathode tensioning device for a wet electrostatic precipitator comprises a shell, a purge port assembly is provided on the shell, a connecting flared shell is provided on one side of the shell, the connecting flared shell is connected to a connecting port on the side of the wet electrostatic precipitator, an insulator fixing hole plate is provided inside the shell, a pull rod insulator is provided in the middle of the insulator fixing hole plate, the end of the pull rod insulator is connected to a pulling channel steel, and the end of the pulling channel steel is passed through to be connected to the cathode system in the wet electrostatic precipitator.
[0011] Furthermore, the housing includes a shell and two blind plate covers, and the two blind plate covers are respectively fixed to openings on both sides of the shell by connecting bolts.
[0012] Further, the purge port assembly includes a first purge port and a second purge port, the second purge port is arranged on the shell, and the first purge port is located on the blind plate cover on the side of the shell away from the connecting expansion shell.
[0013] Furthermore, the connecting expansion shell is in a bell-mouth shape, one end of the small mouth of the bell-mouth shape is connected to the blind plate cover, and one end of the large mouth of the bell-mouth shape is connected to the connecting port.
[0014] Furthermore, the shell is made of glass fiber reinforced plastic material.
[0015] Beneficial effects of the utility model:
[0016] The cathode tensioning device provided by the utility model adopts a first purge port and a second purge port with different positions and directions to convey hot air to the inside of the shell. The purge direction and angle are comprehensive and reasonable, and the purge force is strong. Even when the flue gas entering the wet electrostatic precipitator is unstable, it can well drive away the wet flue gas and smoke dust from accumulating inside the cathode tensioning device, always keeping the interior dry, smooth and insulated to avoid hidden dangers.
[0017] The shell of the cathode tensioning device provided by the utility model is made of glass fiber reinforced plastic, which fully meets the use requirements of corrosion resistance and strength. Compared with the shell made of stainless steel or carbon steel lined with glass fiber reinforced plastic anti-corrosion material, it greatly saves costs.
[0018] The connection expansion shell at the front end of the cathode tensioning device provided by the utility model and the connection port of the wet electrostatic precipitator adopt a bell mouth form, which is not easy to gather smoke and water droplets. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is a schematic diagram of the overall structure of a cathode tensioning device for a wet electrostatic precipitator according to the utility model;
[0021] Figure 2 The utility model is a structural schematic diagram of a cathode tensioning device for a wet electrostatic precipitator in use.
[0022] In the figure, 1. shell; 2. insulator fixing hole plate; 3. blind plate cover; 4. first purge port; 5. second purge port; 6. connecting bolts; 7. connecting expanded shell; 8. pulling channel steel; 9. pull rod insulator; 10. wet electrostatic precipitator; 11. cathode system. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 2 The utility model provides a technical solution for a cathode tensioning device of a wet electrostatic precipitator, a cathode tensioning device of a wet electrostatic precipitator, comprising a shell, a purge port assembly being provided on the shell, a connecting flared shell 7 being provided on one side of the shell, the connecting flared shell 7 being connected to a connecting port on the side of a wet electrostatic precipitator 10, an insulator fixing hole plate 2 being provided inside the shell, a pull rod insulator 9 being provided in the middle of the insulator fixing hole plate 2, the end of the pull rod insulator 9 being connected to a pulling channel steel 8, the end of the pulling channel steel 8 being passed through and connected to a cathode system 11 in the wet electrostatic precipitator 10.
[0025] See also Figure 1 The shell includes a shell 1 and two blind covers 3, and the two blind covers 3 are respectively fixed to the openings on both sides of the shell 1 through connecting bolts 6; through the design of the two blind covers 3, the shell can be easily disassembled, thereby improving the practicality of the device.
[0026] See also Figure 1The purge port assembly includes a first purge port 4 and a second purge port 5, the second purge port 5 is arranged on the shell 1, and the first purge port 4 is located on the blind plate cover 3 on the side of the shell 1 away from the connecting expansion shell 7; through the design of the purge port assembly, hot air can be transported to the inside of the shell 1 through the first purge port 4 and the second purge port 5 with different positions and directions, and the purge direction and angle are comprehensive and reasonable, and the purge force is strong. Even when the flue gas entering the wet electrostatic precipitator is unstable, it can well drive away the wet flue gas and smoke from accumulating inside the cathode tensioning device, keep the interior dry, smooth and insulated at all times, and avoid hidden dangers.
[0027] See also Figure 1 The connecting expansion shell 7 is in the shape of a bell mouth, one end of the small mouth of the bell mouth is connected to the blind plate cover 3, and one end of the large mouth of the bell mouth is connected to the connecting port; the design of the bell mouth makes it difficult for smoke and water droplets to gather.
[0028] See also Figure 1 The shell 1 is made of glass fiber reinforced plastic material; the shell 1 is made of glass fiber reinforced plastic material, which fully meets the requirements of corrosion resistance and strength. Compared with the shell made of stainless steel or carbon steel lined with glass fiber reinforced plastic anti-corrosion material, it greatly saves costs.
[0029] When in use, the cathode tensioning device adopts a first purge port 4 and a second purge port 5 with two different positions and directions to convey hot air to the inside of the shell 1. The purge direction and angle are comprehensive and reasonable, and the purge force is strong. Even when the flue gas condition entering the wet electrostatic precipitator is unstable, it can well drive away the wet flue gas and smoke dust from accumulating inside the cathode tensioning device, and always keep the interior dry, smooth and insulated to avoid hidden dangers. In addition, the shell 1 of the cathode tensioning device is made of fiberglass, which fully meets the corrosion resistance and strength requirements, and greatly saves costs compared to the shell made of stainless steel or carbon steel lined with fiberglass anti-corrosion material. The connection expansion shell 7 at the front end of the cathode tensioning device and the connection port of the wet electrostatic precipitator adopt a trumpet form, which is not easy to accumulate smoke and water droplets.
[0030] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A cathode tensioning device for a wet electrostatic precipitator, characterized in that: The invention comprises an outer shell, on which a purge port assembly is provided, a connection expansion shell (7) is provided on one side of the outer shell, the connection expansion shell (7) is connected to a connection port on the side of a wet electrostatic precipitator (10), an insulator fixing hole plate (2) is provided inside the outer shell, a pull rod insulator (9) is provided in the middle of the insulator fixing hole plate (2), the end of the pull rod insulator (9) is connected to a pulling channel steel (8), and the end of the pulling channel steel (8) is connected to a cathode system (11) in the wet electrostatic precipitator (10).
2. A wet electrostatic precipitator cathode tensioning device according to claim 1, characterized in that: The housing comprises a shell (1) and two blind plate covers (3), wherein the two blind plate covers (3) are respectively fixed to openings on both sides of the shell (1) by connecting bolts (6).
3. A cathode tensioning device for a wet electrostatic precipitator according to claim 2, characterized in that: The purge port assembly comprises a first purge port (4) and a second purge port (5), wherein the second purge port (5) is arranged on the shell (1), and the first purge port (4) is located on the blind plate cover (3) on a side of the shell (1) away from the connecting expansion shell (7).
4. A wet electrostatic precipitator cathode tensioning device according to claim 3, characterized in that: The connecting expansion shell (7) is in the shape of a bell mouth, one end of the small opening of the bell mouth shape is connected to the blind plate cover (3), and one end of the large opening of the bell mouth shape is connected to the connecting port.
5. A cathode tensioning device for a wet electrostatic precipitator according to claim 4, characterized in that: The shell (1) is made of glass fiber reinforced plastic material.