Connector of conductive copper pipe and water-cooled cable

Abstract

The utility model discloses a connector of a conductive copper pipe and a water-cooled cable, which belongs to the technical field of a submerged arc electric furnace conductive short net system and comprises a flame-retardant rubber pipe, flanges are connected to two ends of the flame-retardant rubber pipe, a copper stranded wire is mounted in the flame-retardant rubber pipe, a retainer ring is in sliding contact with the outer surface of the cable head, and the water-cooled cable is mounted in the retainer ring. A plurality of detachable bolts are installed on the inner side of the check ring, the other ends of the bolts penetrate through the flange, the ends, located on the flange, of the bolts are in threaded connection with nuts, and the check ring is driven to move after the nuts are rotated through cooperation of the check ring, the flange and the bolts and supporting of the flange. The check ring drives the cable head to be tightly combined with the copper stranded wire, and meanwhile, the flame-retardant rubber tube is filled and blocked, so that electric conduction can be realized, internal circulating water can be sealed, the defects of water leakage, water seepage and poor electric conduction effect of a connector of an existing conductive copper tube and a water-cooled cable are overcome, and the sealing performance and the electric conductivity are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the conductive short net system of submerged arc furnaces, and particularly relates to a connector for a conductive copper pipe and a water-cooled cable. Background Technique

[0002] A water-cooled cable is a connecting device for conducting electric energy commonly used in submerged arc furnaces. One end of it is connected to a short net copper pipe, and the other end is connected to a conductive copper pipe. The water-cooled cable is generally of a cylindrical structure and consists of a connector, a conductive body, and an insulating rubber tube. Among them, the conductive body is located inside the cable and is the current transmission channel for transmitting current to the required electrical equipment. It consists of two end connectors and copper stranded wires. A spring (made of stainless steel) is located in the middle of the copper stranded wires for support to prevent poor cooling caused by blocked water channels during the operation of the water-cooled cable, which affects the conductive effect; the insulating rubber tube is located outside the conductor and is the heat transfer medium pipe for allowing water to flow through the entire cable to transfer the heat generated during the operation of the cable. The outer insulating rubber tube is a material for protecting the copper stranded wires and also plays a role in water cooling.

[0003] The existing connector of the water-cooled cable is a double copper nut connection, which is prone to disadvantages such as water leakage, water seepage, and poor conductive effect during connection. To solve this technical problem, the utility model proposes a connector for a conductive copper pipe and a water-cooled cable. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a connector for a conductive copper pipe and a water-cooled cable, which can effectively solve the problems mentioned in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A connector for a conductive copper pipe and a water-cooled cable includes a flame-retardant rubber tube. Both ends of the flame-retardant rubber tube are connected with flanges. A copper stranded wire is installed inside the flame-retardant rubber tube. A cable head is in contact with the inner wall of the flame-retardant rubber tube. One end of the cable head located inside the flame-retardant rubber tube is in contact with one end of the copper stranded wire. A retaining ring is in sliding contact with the outer surface of the cable head. A plurality of detachable bolts are installed inside the retaining ring. The other ends of the plurality of bolts all penetrate through the flange, and nuts are threadedly connected to one ends of the plurality of bolts located on the flange.

[0007] Preferably, a washer is sleeved outside the bolt. One side of the washer is in contact with one side of the flange, and the other side of the washer is in contact with one side of the nut.

[0008] Preferably, a clamp is connected to the outer surface of the flame-retardant rubber tube, and one end of the clamp is connected to one side of the flange.

[0009] Preferably, the retaining ring is made of stainless steel or T copper, and the flange is made of stainless steel.

[0010] Preferably, the flange is made of stainless steel, and its stainless steel grade is CrNiTi.

[0011] Preferably, there are four of the bolts, and the four bolts are located at the four corners of the flange and the retaining ring.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] In the present utility model, through the cooperation between the retaining ring, the flange and the bolts, with the support of the flange, after turning the nut, the retaining ring is driven to move, and the retaining ring drives the cable head to be closely combined with the copper stranded wire. At the same time, the flame-retardant rubber tube is filled and sealed, realizing both electrical conductivity and sealing of the internal circulating water, solving the disadvantages of water leakage, water seepage and poor electrical conductivity of the connection head between the existing conductive copper tube and the water-cooled cable, and improving the sealing performance and electrical conductivity.

[0014] In the present utility model, through the washer, the bolt and the nut, the bolt and the nut are connected, which is convenient for disassembly and assembly and reduces the maintenance cost. When disassembling and assembling, only by turning the nut can the cable head be separated from the copper stranded wire. When the bolt and the nut are connected, the washer can increase the stability of the connection between the bolt and the nut, making the nut not easily loosen, reducing the maintenance cost and shortening the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of a connection head between a conductive copper tube and a water-cooled cable of the present utility model;

[0016] Figure 2 is the overall three-dimensional structural schematic diagram of the cable head in a connection head between a conductive copper tube and a water-cooled cable of the present utility model;

[0017] Figure 3 is the internal structural schematic diagram of the flame-retardant rubber tube in a connection head between a conductive copper tube and a water-cooled cable of the present utility model.

[0018] In the figure: 1. Flame-retardant rubber tube; 2. Flange; 3. Copper stranded wire; 4. Cable head; 5. Retaining ring; 6. Bolt; 7. Nut; 8. Washer; 9. Clamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0020] Such as Figures 1-3As shown in the figure, a connector for connecting a conductive copper tube and a water-cooled cable includes a flame-retardant rubber tube 1. Flanges 2 are connected to both ends of the flame-retardant rubber tube 1 to provide a stress point for the flame-retardant rubber tube 1. A copper stranded wire 3 is installed inside the flame-retardant rubber tube 1. A cable head 4 is in contact with the inner wall of the flame-retardant rubber tube 1. One end of the cable head 4 located inside the flame-retardant rubber tube 1 is in contact with one end of the copper stranded wire 3. A retaining ring 5 is in sliding contact with the outer surface of the cable head 4 to provide a pulling force for the cable head 4 and increase the stability of the cable head 4. A plurality of detachable bolts 6 are installed inside the retaining ring 5. The other ends of the plurality of bolts 6 all penetrate through the flange 2. Nuts 7 are threadedly connected to one ends of the plurality of bolts 6 located on the flange 2. Both ends of the flame-retardant rubber tube 1 are conical, and the end of the cable head 4 is conical. The conical appearance facilitates the connection between the cable head 4 and the flame-retardant rubber tube 1, meeting the two functions of conduction and sealing. By passing the bolts 6 through the retaining ring 5 and the flange 2 and then tightening the nuts 7, when tightening the nuts 7, the cable head 4 is driven to be in close contact with the copper stranded wire 3, and at the same time, the gap between the cable head 4 and the flame-retardant rubber tube 1 is reduced, increasing the sealing performance.

[0021] A washer 8 is sleeved outside the bolt 6. One side of the washer 8 is in contact with one side of the flange 2, and the other side of the washer 8 is in contact with one side of the nut 7. The washer 8 prevents the nut 7 from loosening, increases the stability of the nut 7, and prevents the nut 7 from loosening and losing the fastening of the bolt 6.

[0022] A clamp 9 is connected to the outer surface of the flame-retardant rubber tube 1. One end of the clamp 9 is connected to one side of the flange 2. The clamp 9 increases the connection strength between the flange 2 and the flame-retardant rubber tube 1, making the flange 2 more stable.

[0023] The retaining ring 5 is made of stainless steel or T2 copper. The flange 2 is made of stainless steel. The stainless steel grade of the flange 2 is 06Cr18Ni11Ti. The copper part is made of T2 copper, with a copper content ≥ 99.75%, a lead content ≤ 0.20%, an iron content ≤ 0.10%, a zinc content ≤ 0.10%, a tin content ≤ 0.10%, and a nickel content ≤ 0.10%.

[0024] The plurality of bolts 6 are four. The four bolts 6 are located at the four corners of the flange 2 and the retaining ring 5. The retaining ring 5 and the flange 2 are connected by 4 bolts 6. As the bolts 6 are tightened, the retaining ring 5 and the cable head 4 are driven to be closely combined with the flange 2 and the copper stranded wire 3, achieving both conduction and sealing of the internal circulating water.

[0025] It should be noted that during the actual use of this device, first, the retaining ring 5 is sleeved on the cable head 4, then the cable head 4 is inserted into the interior of the flame-retardant rubber tube 1. Subsequently, the bolt 6 passes through the retaining ring 5 and the flange 2, and then the washer 8 is sleeved on the outside of the bolt 6. Then, the nut 7 is rotated to reduce the distance between the retaining ring 5 and the flange 2. When the retaining ring 5 moves, it drives the cable head 4 to tightly contact the copper stranded wire 3, thereby realizing the butt joint between the cable head 4 and the copper stranded wire 3.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A connector for connecting a conductive copper tube and a water-cooled cable, comprising a flame-retardant rubber tube (1), characterized in that: Both ends of the flame-retardant rubber hose (1) are connected with flanges (2). A copper stranded wire (3) is installed inside the flame-retardant rubber hose (1). A cable head (4) is in contact with the inner wall of the flame-retardant rubber hose (1). One end of the cable head (4) located inside the flame-retardant rubber hose (1) is in contact with one end of the copper stranded wire (3). A retaining ring (5) is in sliding contact with the outer surface of the cable head (4). A plurality of detachable bolts (6) are installed inside the retaining ring (5). The other ends of the plurality of bolts (6) all penetrate through the flange (2). Nuts (7) are threadedly connected to one ends of the plurality of bolts (6) located at the flange (2).

2. The connector for connecting a conductive copper tube and a water-cooled cable according to claim 1, characterized in that: A washer (8) is sleeved outside the bolt (6). One side of the washer (8) is in contact with one side of the flange (2). The other side of the washer (8) is in contact with one side of the nut (7).

3. The connector for connecting a conductive copper tube and a water-cooled cable according to claim 1, characterized in that: A clamp (9) is connected to the outer surface of the flame-retardant rubber hose (1). One end of the clamp (9) is connected to one side of the flange (2).

4. The connector for connecting a conductive copper tube and a water-cooled cable according to claim 1, characterized in that: The retaining ring (5) is made of stainless steel or T2 copper, and the flange (2) is made of stainless steel.

5. The connector between a conductive copper pipe and a water-cooled cable according to claim 4, characterized in that: The flange (2) is made of stainless steel, and its stainless steel grade is 06Cr18Ni11Ti.

6. The connector for connecting a conductive copper tube and a water-cooled cable according to claim 1, characterized in that: The plurality of bolts (6) are four, and the four bolts (6) are located at the four corners of the flange (2) and the retaining ring (5).

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