Short-net copper pipe confluence device
By using insulating plates and metal plates to connect copper pipes in the short-mesh copper pipe confluence device, and using mica plates or phenolic resin plates as the insulating material layer, the problems of loose connections and uneven current in short-mesh copper pipes in high-temperature environments are solved, achieving stable operation of the equipment and reducing maintenance costs.
Patent Information
- Application Number
- CN202422482021.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The bolt strength of the existing short-mesh copper tube confluence device decreases in high-temperature environments, causing the splint connection to loosen, increasing resistivity and arcing frequency. Dust entering the gaps increases arcing, and the mismatch of copper tube sizes leads to uneven current, causing equipment damage.
Insulation plates and metal plates are used to connect short-mesh copper tubes, which are fixed with copper sheets and bolts. Mica plates, phenolic resins or nylon plates are used as insulating material layers to eliminate connection gaps and limit the copper tubes, thus forming a busbar with a new structure.
Avoid arcing, reduce short-circuit failure rate, prevent uneven electrode baking caused by uneven current, and reduce equipment maintenance costs.
Smart Images
Figure CN223390819U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a short-net copper tube confluence device, in particular to a short-net copper tube confluence device used for a submerged arc furnace. Background Art
[0002] In recent years, large-scale enclosed submerged arc furnaces have been widely used. The existing submerged arc furnaces, whether of combined holder structure or copper tile structure, all have the following basic connection and conduction mode: transformer - short-net copper tube - cable - furnace copper tube - copper tile (or conductive element) - electrode. The short-net copper tube is fixed and has the function of current diversion through a confluence device. The existing short-net copper tube confluence device is as follows: Figure 1 As shown, it includes two lifting clamps 16 and 17 connected by a lifting bolt 13. Both sides of the two lifting clamps 16 and 17 are provided with a left busbar 14 and a right busbar 15. The left busbar 14 and the right busbar 15 are provided with a gap and are provided with a number of paired arc grooves. Several busbar copper tubes 18 are clamped between the left busbar 14 and the right busbar 15. Insulating partitions 19 are provided on the outsides of the two groups of busbars, between the two groups of busbars and the adjacent lifting clamps, and between the two lifting clamps. In order to ensure the tightness of the clamping, an insulating partition 19 is provided on each The upper and lower sides of the busbar copper tube 18 are equipped with bolts 20 that pass through the two sets of busbar clamps, the two lifting clamps, and all the insulating partitions. The bolts 20 are covered with insulating sleeves 21, and the ends of the bolts 20 are equipped with fastening nuts. However, there are the following disadvantages: First, because the short-circuit system and the busbar clamp are exposed to high temperatures for a long time, the bolts 20 at both ends of the two sets of busbar clamps have reduced strength, resulting in a certain degree of loosening. The clamps 14, 15 and the copper tube 18 cannot be tightly connected, the resistivity increases, and the frequency of arcing in the equipment increases. Second, the outer surface of the bolts 20 is separated from the busbar by insulating sleeves 21 to avoid eddy currents. However, due to the large number of fastening points, if any insulating sleeve 21 is damaged, and the busbar clamp is exposed to heavy dust for a long time, dust will enter the gap and increase the arcing phenomenon of the entire busbar clamp. 3. When there is a slight mismatch between the size of the copper tube 18 and the size of the arc-shaped grooves of the left and right confluence clamping plates 14 and 15, arcing may occur between the copper tube 18 and the confluence clamping plates 14 and 15. Once arcing occurs frequently, the copper tube may break due to arcing, resulting in current imbalance, uneven electrode baking, and damage to the equipment. Summary of the Invention
[0003] The purpose of the utility model is to address the deficiencies of the existing technology and provide a short-net copper tube confluence device, which can avoid arcing during use, reduce the short-net failure rate, prevent uneven electrode baking and damage to equipment caused by inconsistent current, and reduce equipment maintenance costs.
[0004] In order to achieve the above-mentioned object, the utility model provides a short-mesh copper tube confluence device, comprising a plurality of short-mesh copper tubes arranged in two rows and two confluence plates provided on both sides of the two rows of short-mesh copper tubes; the characteristics are that: an insulating plate and a metal plate are fixedly connected to the outer sides of the two confluence plates in sequence, a plurality of copper plates are fixedly connected to the inner sides of the two confluence plates, a connecting copper plate is inherently provided on the outer side of each short-mesh copper tube, and adjacent copper plates and connecting copper plates are grouped in pairs and connected by a plurality of bolts; a central insulating plate and two plywoods are provided on the rear sides of the two rows of short-mesh copper tubes, an insulating material layer is provided between the central insulating plate and the two plywoods, the two rows of short-mesh copper tubes pass through their respective insulating material layers, the two plywoods, the central insulating plate and the insulating material layers are connected by a plurality of connecting bolts and nuts; a load-bearing ring is fixedly connected to the upper ends of the two metal plates and the central insulating plate;
[0005] The utility model connects the short-mesh copper tube and the busbar together through copper sheets, connecting copper sheets and bolts to form a new structure busbar, which can avoid arcing during use, reduce the short-mesh failure rate, and prevent uneven electrode baking and damage to equipment caused by inconsistent current. In addition, the insulating material layer can prevent the short-mesh copper tube from damaging the transformer copper tube joint due to the up and down movement of the electrode, thereby reducing equipment maintenance costs.
[0006] As a further improvement of the present invention, the insulating material layer is formed by connecting several insulating blocks, which facilitates the assembly of the insulating material layer and the passage of the short-mesh copper tube through the insulating material layer.
[0007] As a further improvement of the present invention, the inner sides of the two busbars are welded with several copper sheets, and the outer sides of each short-mesh copper tube are welded with inherent connecting copper sheets. This can eliminate the connection gap and further avoid arcing during use.
[0008] As a further improvement of the present invention, the insulating material layer is made of mica board, phenolic resin or nylon board;
[0009] In summary, the utility model can avoid arcing during use, reduce the short circuit failure rate, prevent uneven electrode baking and damage to equipment caused by inconsistent current, and reduce equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is the main view of the existing short-net copper tube confluence device.
[0011] Figure 2 It is the front view of the embodiment of the present utility model.
[0012] Figure 3 for Figure 2 Top view of . DETAILED DESCRIPTION
[0013] In order to more clearly understand the purpose, technical solutions and beneficial effects of the present invention, the present invention is further described below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.
[0014] like Figure 2 、 Figure 3 As shown, a short-mesh copper tube confluence device of this embodiment includes several short-mesh copper tubes 1 arranged in two rows, and two confluence plates 2 provided on both sides of the two rows of short-mesh copper tubes; the outer sides of the two confluence plates 2 are fixedly connected in sequence with an insulating plate 3 and a metal plate 4 by bolts (not shown); the inner sides of the two confluence plates 2 are fixedly connected by welding to several copper plates 5; the outer sides of each short-mesh copper tube 1 are welded with a fixed connecting copper plate 6, and adjacent copper plates 5 and connecting copper plates 6 are connected in pairs by four bolts 7; a central insulating plate 8 and two plywood 9 are provided on the rear sides of the two rows of short-mesh copper tubes 1; a rigid insulating material layer 10 is provided between the central insulating plate 8 and the two plywood 9, and the insulating material layer is formed by connecting several insulating blocks; the two rows of short-mesh copper tubes 1 pass through their respective insulating material layers 10, and the two plywood 9, the central insulating plate 8 and the insulating material layer 10 are connected by several connecting bolts 11 and nuts; the upper ends of the two metal plates 4 and the central insulating plate 8 are fixedly connected to a load-bearing ring 12;
[0015] The insulating material layer is made of mica board, phenolic resin or nylon board;
[0016] During operation, the utility model can be suspended for use through the load-bearing rings 12. One end of the short-mesh copper tube 1 is connected to the transformer lead-out copper tube through a copper tube connector, and the other end of the short-mesh copper tube 1 is connected to the water cable on the electrode side. The short-mesh copper tube 1 is connected to the busbar 2 through the copper sheet 5, the connecting copper sheet 6 and the bolt 7 to form a busbar with a new structure, which can eliminate the connection gap between the conductive elements, avoid arcing during use, reduce the short-mesh failure rate, and prevent uneven electrode baking and damage to equipment caused by inconsistent current. The rigid insulating material layer 10 can limit the position of the short-mesh copper tube 1, prevent the short-mesh copper tube 1 from moving up and down and shaking due to the electrode, and damage the transformer copper tube joint, thereby reducing equipment maintenance costs.
[0017] The insulating material layer 10 is formed by connecting several insulating blocks, which facilitates the assembly of the insulating material layer and the passage of the short-mesh copper tube 1 through the insulating material layer.
Claims
1. A short-mesh copper tube manifold device, comprising a plurality of short-mesh copper tubes arranged in two rows and two manifold plates disposed on either side of the two rows of short-mesh copper tubes; characterized in that: The outer sides of the two busbars are fixedly connected with insulating plates and metal plates in sequence, and the inner sides of the two busbars are fixedly connected with several copper plates. The outer side of each short-mesh copper tube has an inherent connecting copper plate, and the adjacent copper plates and connecting copper plates are grouped in pairs and connected by several bolts; a central insulating plate and two plywoods on both sides of the central insulating plate are provided on the rear sides of the two rows of short-mesh copper tubes, and an insulating material layer is provided between the central insulating plate and the two plywoods. The two rows of short-mesh copper tubes pass through their respective insulating material layers, and the two plywoods, the central insulating plate and the insulating material layer are connected by several connecting bolts and nuts; the upper ends of the two metal plates and the central insulating plate are fixedly connected with load-bearing rings.
2. The short-net copper tube confluence device according to claim 1, characterized in that: The insulating material layer is formed by connecting several insulating blocks.
3. A short-net copper tube confluence device according to claim 1 or 2, characterized in that: Several copper sheets are welded and fixedly connected on the inner sides of the two busbars, and a fixed connecting copper sheet is welded on the outer side of each short-mesh copper tube.
4. A short-net copper tube confluence device according to claim 1 or 2, characterized in that: The insulating material layer is made of mica board, phenolic resin or nylon board.