Corrosion-resistant protective sleeve for wet-electrocathode suspender
By designing anti-corrosion protective covers for the cathode boom of wet electrostatic precipitator, using fluoroplastic or fiberglass pipes, corrosion-resistant clay filler layer and porcelain sleeve, the problem of corrosive fracture of the cathode boom in an acidic environment is solved, and the long-term stable operation and safety improvement of the equipment is achieved.
Patent Information
- Application Number
- CN202420567154.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The cathode boom of existing wet electrocutors is prone to corrosive fracture in an acidic environment, resulting in unstable equipment operation, which may cause short circuit tripping and system emissions to exceed the standard.
An anti-corrosion protective cover is designed, including a protective cover made of fluoroplastic or fiberglass tube, a corrosion-resistant mud filler layer and a porcelain sleeve. The cathode boom is connected by welding support bracket plates, and a protective cover and filler layer are installed on its surface to form an isolation layer to prevent acidic flue gas corrosion.
It effectively isolates acidic flue gas, reduces the corrosion risk of cathode boom, extends its service life, and improves the safety and stability of the equipment.
Smart Images
Figure CN222956595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrostatic precipitators, and more specifically, the utility model relates to an anti-corrosion protection sleeve for a wet electrostatic precipitator cathode suspension rod.
Background Art
[0002] A wet electrostatic precipitator is a new dust removal device used to treat trace dust and fine particles, mainly used to remove harmful substances such as dust, acid mist, water droplets, aerosol, odor, PM2.5, etc. in humid gas, and is an ideal device for treating atmospheric dust pollution. A wet electrostatic precipitator is usually abbreviated as WESP, and its basic dust removal principle is the same as that of a dry electrostatic precipitator, and it has to go through three stages: charging, collection, and dust cleaning.
[0003] The cathode suspension rod is suspended inside the upper insulation and heat preservation chamber of the wet electrostatic precipitator and connected to the lower cathode suspension device at the lower end, ensuring a safe discharge distance between the entire cathode system and the anode system. It plays a connecting role from top to bottom in the entire wet electrostatic precipitator and is an important component of the entire cathode system.
[0004] The existing cathode suspension rods of horizontal wet electrostatic precipitators are round tubes made of 2205 or 316L materials. The round tubes are subjected to scale anti-corrosion above the area covered by the dust-proof sleeve, but the surface of the round tubes is smooth and the scale adhesion ability is poor, resulting in scale shedding on-site or no anti-corrosion treatment on-site. After the equipment runs for a long time, due to the long-term exposure of the round tubes to an acidic environment of 50°C to 120°C, the round tubes break, causing the entire cathode frame to tilt, the wet electrostatic precipitator to short-circuit and trip during operation, and the system emissions to exceed the standard.
Content of the Utility Model
[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an anti-corrosion protection sleeve for a wet electrostatic precipitator cathode to isolate the corrosive acid flue gas from the cathode suspension rod and prevent the cathode suspension rod from being corroded and broken.
[0006] To achieve the above purpose, the utility model provides the following technical solution: an anti-corrosion protection sleeve for a wet electrostatic precipitator cathode, including a cathode suspension rod, a support bracket plate, a protection sleeve, a filler layer, and a porcelain sleeve. The support bracket plate is welded to the cathode suspension rod, the protection sleeve is arranged outside the cathode suspension rod, a filler layer is arranged between the protection sleeve and the cathode suspension rod, and a porcelain sleeve is arranged at the upper end of the cathode suspension rod.
[0007] Preferably, the material of the protection sleeve is fluoroplastics or fiberglass pipe.
[0008] Preferably, the thickness of the protection sleeve is 6 mm.
[0009] Preferably, the diameter of the cathode suspension rod is 3 mm.
[0010] Preferably, the filler layer adopts a corrosion-resistant mortar with good fluidity.
[0011] Preferably, the material of the support bracket plate is selected from 2205 or 316L.
[0012] Preferably, the porcelain bushing includes a large-diameter end and a small-diameter end, the porcelain bushing is in a horn shape, and the small-diameter end is arranged above the large-diameter end.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. An anti-corrosion protection sleeve for a wet electrostatic cathode suspension rod of the present utility model can effectively isolate acidic flue gas, prevent the acidic flue gas from directly contacting the cathode suspension rod, reduce the occurrence of corrosion, and extend the service life of the cathode suspension rod;
[0015] 2. An anti-corrosion protection sleeve for a wet electrostatic cathode suspension rod of the present utility model seals and isolates acidic substances through a filler layer, enhances the corrosion resistance of the protection sleeve, prevents the cathode suspension rod from being corroded and fractured, and improves the safety and stability of the equipment.
Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of an anti-corrosion protection sleeve for a wet electrostatic cathode suspension rod of the present utility model;
[0017] In the figure: 1 - cathode suspension rod, 2 - support bracket plate, 3 - protection sleeve, 4 - filler layer, 5 - porcelain bushing, 51 - large-diameter end, 52 - small-diameter end.
Specific Embodiments
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Refer to Figure 1, in the embodiment of the present utility model, an anti-corrosion protection sleeve for a wet electrostatic cathode suspension rod includes a cathode suspension rod 1, a support bracket plate 2, a protection sleeve 3, a filler layer 4, and a porcelain sleeve 5. The support bracket plate 2 is welded to the cathode suspension rod 1. The material of the support bracket plate 2 is selected from 2205 or 316L. The diameter of the cathode suspension rod 1 is 3 mm. A protection sleeve 3 is provided outside the cathode suspension rod 1. The material of the protection sleeve 3 is fluoroplastics or a glass steel pipe, and the thickness of the protection sleeve 3 is 6 mm. A filler layer 4 is provided between the protection sleeve 3 and the cathode suspension rod 1. The filler layer 4 is made of a corrosion-resistant putty with good fluidity. A porcelain sleeve 5 is provided at the upper end of the cathode suspension rod 1. The porcelain sleeve 5 includes a large-diameter end 51 and a small-diameter end 52. The porcelain sleeve 5 is in a trumpet shape, and the small-diameter end 52 is arranged above the large-diameter end 51.
[0020] Working principle:
[0021] Before the anti-corrosion protection sleeve for a wet electrostatic cathode suspension rod of the present utility model is used, the support bracket plate 2 is welded to the cathode suspension rod 1. The protection sleeve 3 is sleeved on the cathode suspension rod 1, and a corrosion-resistant putty with good fluidity is filled as the filler layer 4 between the protection sleeve 3 and the cathode suspension rod 1. During use, due to the provided protection sleeve 3 and filler layer 4, corrosive acid flue gas can be blocked during use, preventing the cathode suspension rod 1 from being corroded and fractured, thereby prolonging the service life of the cathode suspension rod 1 and ensuring the structural stability and reliability.
[0022] The above embodiments are illustrative of the present utility model, not restrictive thereof. Any scheme obtained by simply changing the present utility model falls within the protection scope of the present utility model.
Claims
1. A corrosion protection cover for wet cathode suspension rod, characterized in that: The invention comprises a cathode hanger (1), a support bracket plate (2), a protective sleeve (3), a packing layer (4), and a porcelain sleeve (5); the support bracket plate (2) is welded to the cathode hanger (1); a protective sleeve (3) is arranged outside the cathode hanger (1); a packing layer (4) is arranged between the protective sleeve (3) and the cathode hanger (1); and a porcelain sleeve (5) is arranged at the upper end of the cathode hanger (1).
2. The anti-corrosion protective cover for wet cathode suspension rod according to claim 1, characterized in that: The material of the protective cover (3) is fluoroplastic or glass fiber reinforced plastic tube.
3. The anti-corrosion protective cover for wet cathode suspension rod according to claim 2, characterized in that: The thickness of the protective cover (3) is 6 mm.
4. The anti-corrosion protective cover for wet cathode suspension rod according to claim 1, characterized in that: The cathode suspension rod (1) has a diameter of 3 mm.
5. The anti-corrosion protective cover for wet cathode suspension rod according to claim 1, characterized in that: The filler layer (4) is made of corrosion-resistant cement with good fluidity.
6. The anti-corrosion protective cover for wet cathode suspension rod according to claim 1, characterized in that: The support bracket plate (2) is made of 2205 or 316L.
7. The anti-corrosion protective cover for wet cathode suspension rod according to claim 1, characterized in that: The porcelain sleeve (5) comprises a large diameter end (51) and a small diameter end (52). The porcelain sleeve (5) is trumpet-shaped, and the small diameter end (52) is arranged above the large diameter end (51).