Flashing connection device of ceramic insulator

Abstract

A flash connection device of a ceramic insulator is characterized in that a conducting ring device, a slide rheostat and a super capacitor are connected through a switch K and a to form an external discharge circuit, and meanwhile, the conducting ring device, an infrared thermal imager and a data acquisition and analysis device form a feedback circuit to adjust circuit voltage; the direct-current power supply, the ampere meter, the fixed-value resistor, the super capacitor and the voltmeter connected in parallel with the super capacitor are connected with the b position through the switch k to form an internal charging circuit of the super capacitor; an infrared thermal imager and a data acquisition and analysis device are arranged, so that the temperature change and shrinkage condition of the joint of the ceramic insulator in each stage of flash connection can be mastered in real time, and the voltage of the conducting ring device can be conveniently controlled by adjusting a slide rheostat; according to the invention, the voltage required by the flash connection technology can be more accurately controlled, and a brand new device is provided for the flash connection of the ceramic insulator.

Description

Technical Field

[0001] The invention belongs to the technical field of connection devices, and in particular relates to a flash connection device for a ceramic insulator. Background Art

[0002] The connection of ceramic insulators has always been a difficult problem in the connection of UHV power porcelain. Inspired by the flash burning (Flashsintering) technology, Xia et al. first proposed a new electric field induced flash joining (FJ) technology. By applying a DC electric field exceeding the threshold to the ion conductive ceramic material, the "flash" phenomenon is generated, and the ceramic material can be connected in a very short time (seconds). The use of flash connection technology can quickly connect ceramic insulators, effectively reduce the loss of ceramic insulators, and greatly improve the efficiency of ceramic insulator connection work.

[0003] However, the existing ceramic insulator connections are made by splicing them separately, which is time-consuming and the equipment operation is relatively complicated. Applying the flash connection technology to actual work requires a special connection device. Summary of the invention

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a flash connection device for a ceramic insulator, which provides a heat source for the joints of the ceramic insulator through a conductive ring device, and with the assistance of a supercapacitor, realizes low-temperature rapid connection of the joints of the ceramic insulator; through an infrared thermal imager and a data acquisition and analysis device, the temperature change and contraction of the joints of the ceramic insulator at each stage of the flash connection can be realized, which facilitates adjusting the sliding rheostat to control the voltage of the conductive ring device, and can effectively reduce energy consumption and equipment requirements.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A flash connection device for a ceramic insulator comprises a conductive ring device (3), characterized in that one end of the conductive ring device (3) is connected to a sliding rheostat (4) and a data acquisition and analysis device (2), and the other end is connected to a supercapacitor (5) through a position a and a switch k; the other end of the data acquisition and analysis device (2) is connected to an infrared thermal imager (1); the other end of the sliding rheostat (4) is connected to the supercapacitor (5) and is grounded; the supercapacitor (5) is connected in parallel to a voltmeter (6); one end of the supercapacitor (5) is connected to a fixed value resistor (7), and the other end is connected to a DC power supply (9) through a switch K and a position b; the other end of the DC power supply (9) is connected to an ammeter (8) and a fixed value resistor (7) in sequence.

[0006] Furthermore, the conductive ring device (3) comprises two parts: a conductive ring and an electrode.

[0007] Furthermore, the conductive ring is made of copper and its alloys, aluminum and its alloys, tungsten and titanium.

[0008] Furthermore, the surface layer of the electrode is an insulating material.

[0009] Furthermore, the conductive ring devices (3) must be used in pairs.

[0010] Furthermore, the infrared thermal imager (1) is directly facing the conductive ring device (3), and the data acquisition frequency of the infrared thermal imager (1) is between 30-90 Hz.

[0011] Furthermore, the resistance of the sliding rheostat (7) is in the range of 0-150 kΩ.

[0012] Furthermore, the capacitance (1-22 mF) and voltage value (0-10 kV) of the supercapacitor (5) can be adjusted according to the ceramic connected.

[0013] The beneficial effects of the present invention are: (1) The present invention provides an infrared thermal imager and a data acquisition and analysis device to grasp in real time the temperature change and shrinkage of the joints of the ceramic insulator at each stage of the flash connection, thereby facilitating the voltage of the conductive ring device to be controlled by adjusting the sliding rheostat, thereby more accurately controlling the voltage required by the flash connection technology and improving the performance of the ceramic insulator after connection.

[0014] (2) The present invention adopts flash connection technology to connect two ceramic insulators, which can significantly reduce the connection temperature and shorten the connection time. The connection at the joint of the two ceramic insulators can be achieved in seconds. The device has a simple structure and is easy and quick to use. It is safe and can effectively reduce energy consumption and equipment requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a circuit connection schematic diagram of the present invention; Figure 2 It is an isometric schematic diagram of the conductive ring device of the present invention; Figure 3 It is a front view of the conductive ring device of the present invention.

[0016] Among them: 1. Infrared thermal imager; 2. Data acquisition and analysis device; 3. Conductive ring device; 4. Sliding rheostat; 5. Supercapacitor; 6. Voltmeter; 7. Fixed resistor; 8. Ammeter; 9. DC power supply. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the drawings and embodiments.

[0018] like Figure 1As shown, a flash connection technology connection device for a ceramic insulator comprises a conductive ring device (3) for conducting current heating, one end of the conductive ring device (3) is connected to a sliding rheostat (4) and a data acquisition and analysis device (2), and the other end is connected to a supercapacitor (5) through a switch k, the other end of the data acquisition and analysis device (2) is connected to an infrared thermal imager (1), the other end of the sliding rheostat (4) is connected to the supercapacitor (5) and is grounded at the same time, the supercapacitor (5) is connected in parallel with a voltmeter (6) to form an external discharge circuit; one end of the supercapacitor (5) is connected to a fixed resistor (7), and the other end is connected to a DC power supply (9) through a switch K and a b position, the other end of the DC power supply (9) is connected to an ammeter (8), and the other end of the ammeter is connected to the fixed resistor (7) to form an internal charging circuit.

[0019] like Figure 2 , 3 As shown, the conductive ring device (3) comprises two parts: a conductive ring and an electrode.

[0020] The conductive ring is made of copper and its alloys, aluminum and its alloys, tungsten and titanium.

[0021] The surface layer of the electrode is made of insulating material, and its material includes rubber, polyethylene, cross-linked polyethylene, etc.

[0022] The conductive ring devices (3) must be used in pairs.

[0023] The infrared thermal imager (1) is directly facing the conductive ring device (3), and the data acquisition frequency of the infrared thermal imager (1) is between 30 and 90 Hz.

[0024] The resistance value of the sliding rheostat (7) is in the range of 0-150 kΩ.

[0025] The switch k is connected to the a position to form an external discharge circuit, and is connected to the b position to form an internal charging circuit.

[0026] The capacitance (1-22 mF) and voltage value (0-10 kV) of the supercapacitor can be adjusted according to the connected ceramic.

[0027] The working principle of the present invention is: When in use, connect switch k to position b, charge the supercapacitor by the internal circuit, and disconnect switch b after charging is completed; align the joint positions of the two ceramic insulators and place them together, then align the conductive ring to the joint position, make the opening positions of the two conductive rings contact each other, and slowly rotate the conductive ring along the joint position; the electrodes of the conductive ring device 3 are respectively connected to the switch k and the sliding rheostat 4 connected to position a, and are connected in series with the supercapacitor 5 to form an external discharge circuit; then the infrared thermal imager 1 is placed directly opposite to the conductive ring device 3, and is connected to the data acquisition and analysis device 2 to form a feedback circuit, and the temperature change and contraction of the joints of the two ceramic insulators at each stage of the flash connection can be observed in situ, and the sliding rheostat 4 can be appropriately adjusted to control the voltage of the conductive ring device; the voltage of the DC power supply 9 is between 0-10 kV, with an accuracy of ±1%, which can meet the needs of most supercapacitors; the infrared thermal imager 1 and the data acquisition and analysis device 2 can simultaneously measure the temperature change and size of the ceramic insulator connection seam; the temperature measurement range is from 10℃-3000℃, with an accuracy of ±1℃; the size measurement range is 0-300mm, with an accuracy of ±1mm; the data acquisition and analysis device 2 can display the connection results at the joint, which is convenient for adjusting the sliding rheostat 4 to control the voltage. Example

[0028] 1. The specific steps of flash connection of large alumina (Al2O3) ceramic insulators using the device of the present invention are as follows: 2. Align the joints of two alumina (Al2O3) ceramic insulators and place them together; 3. Align the conductive ring with the joint position, make the opening positions of the two conductive rings touch each other, connect one electrode chuck to position a, and connect the other electrode chuck to the sliding rheostat 4; 4. Align the infrared thermal imager 1 to the joint of the ceramic insulator on the conductive ring device 3 and connect it to the data acquisition and analysis device 2; 5. Set the voltage to 1600V; 6. Slowly rotate the conductive ring device 3 along the joint position. After the ceramic insulator is flash-connected, disconnect the switch k at position a and the flash-connection is completed. Example

[0029] The specific steps of using the device of the present invention to flash connect steatite ceramic (MgSiO3) ceramic insulators are as follows: 1. Align the joints of two steatite ceramic (MgSiO3) ceramic insulators and place them together; 2. Align the conductive ring with the joint position, so that the opening positions of the two conductive rings are in contact, one electrode chuck is connected to position a, and the other electrode chuck is connected to the sliding rheostat 4; 3. Place the infrared thermal imager 1 directly at the joint of the ceramic insulator on the conductive ring device 3 and connect it to the data acquisition and analysis device 2; 4. Set the voltage to 6000V; 5. Slowly rotate the conductive ring device 3 along the joint position. After the ceramic insulator is flash-connected, disconnect the switch k at position a and the flash-connection is completed.

Claims

1. A flash connection device for a ceramic insulator, comprising a conductive ring device (3), characterized in that: One end of the conductive ring device (3) is connected to the sliding rheostat (4) and the data acquisition and analysis device (2), and the other end is connected to the supercapacitor (5) through the a position and the switch k; the other end of the data acquisition and analysis device (2) is connected to the infrared thermal imager (1); the other end of the sliding rheostat (4) is connected to the supercapacitor (5) and is grounded; the supercapacitor (5) is connected in parallel with a voltmeter (6); one end of the supercapacitor (5) is connected to a fixed value resistor (7), and the other end is connected to the direct current power supply (9) through the switch K and the b position; the other end of the direct current power supply (9) is connected to the ammeter (8) and the fixed value resistor (7) in sequence.

2. A lightning connection device for a ceramic insulator according to claim 1, characterized in that: The conductive ring device (3) comprises two parts: a conductive ring and an electrode.

3. A lightning connection device for ceramic insulators according to claim 2, characterized in that: The conductive ring is made of copper and its alloys, aluminum and its alloys, tungsten and titanium.

4. A lightning connection device for a ceramic insulator according to claim 2, characterized in that: The surface layer of the electrode is made of insulating material.

5. A lightning connection device for ceramic insulators according to claim 2, characterized in that: The conductive ring devices (3) must be used in pairs.

6. A lightning connection device for ceramic insulators according to claim 1, characterized in that: The infrared thermal imager (1) is directly facing the conductive ring device (3), and the data acquisition frequency of the infrared thermal imager (1) is between 30 and 90 Hz.

7. A lightning connection device for ceramic insulators according to claim 1, characterized in that: The resistance value of the sliding rheostat (7) is in the range of 0-150 kΩ.

8. The lightning connection device of a ceramic insulator according to claim 1, characterized in that: The capacitance (1-22 mF) and voltage value (0-10 kV) of the supercapacitor (5) can be adjusted according to the ceramic connected.

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