CN117471205A - Aging test device for superconducting cables and method of using the same - Google Patents

Abstract

The invention discloses an aging testing device for a superconducting cable and a using method thereof, comprising a high-temperature box body, wherein one side of the high-temperature box body is hinged with a cover door, both sides of the inside of the high-temperature box body are slidably provided with sliding blocks, one side of one sliding block is provided with a heat insulation box, the inside of the heat insulation box is horizontally connected with a motor, one side of the heat insulation box is rotatably provided with a rotating shaft, the rotating end of the motor and one end of the rotating shaft are fixedly sleeved with bevel gears, and the two bevel gears are meshed. After the detection of the superconducting cable body is completed, the electric push rod is started to push the pull rod outwards, and then the superconducting cable body is driven to move out of the high-temperature box body, so that the superconducting cable body is discharged conveniently, testers do not need to enter a high-temperature environment personally, the working intensity and the operation risk are reduced, the superconducting cable body can be protected from being damaged additionally, the operation risk and the labor intensity of the testers are reduced, and the working safety and the comfort are improved.

Description

Aging test device for superconducting cables and method of using the same

Technical field

The present invention relates to the technical field of testing devices, and in particular, to an aging testing device for superconducting cables and a method of using the same.

Background technique

Wires that use superconductors to conduct current are called superconducting cables. They have the advantages of large capacity, low loss, energy saving and environmental protection. They have been widely used in the power industry. They can transmit current at extremely low temperatures without energy loss, but super Conductive cables will age after long-term use, affecting their performance and reliability. Therefore, it is necessary to conduct aging tests on superconducting cables to evaluate their service life and performance degradation. Currently, there are many aging testing methods for superconducting cables, such as high temperature, low temperature, earthquake resistance, moisture, etc. During high temperature testing, It is usually placed in a high-temperature chamber for testing. However, the high-temperature chamber of the high-temperature aging test device in the prior art still has certain defects that need to be improved;

When the aging test device in the prior art is used, it requires staff to put the superconducting cable into the high-temperature box and take it out. After the test, it is necessary to enter the high-temperature box to take out the superconducting cable. This is not only a waste of time, but also a waste of time. Human resources, there are still certain security risks. Manual operation may introduce additional misoperation or accidental damage, and also poses certain risks to the physical health of testers. Removing superconducting cables from the high-temperature chamber takes a certain amount of time, and the entire removal process may be cumbersome. This is not only It affects the efficiency of the test and also limits the frequency of use and operating capacity of the equipment. Therefore, an aging test device for superconducting cables and its use method are proposed to overcome the above defects.

Contents of the invention

The purpose of the present invention is to propose an aging test device for superconducting cables and a method of using the same, in order to solve the shortcoming in the prior art that it is inconvenient to retrieve materials after the test is completed.

In order to achieve the above objects, the present invention adopts the following technical solutions:

An aging test device for superconducting cables, including a high-temperature box. A door is hinged on one side of the high-temperature box. Sliders are slidably installed on both sides of the high-temperature box. One of the sliders is installed on one side. The heat-insulating box has a motor connected horizontally inside the heat-insulating box. A rotating shaft is installed on one side of the heat-insulating box. The rotating end of the motor and one end of the rotating shaft are both fixedly connected with bevel gears. The two bevel gears are meshed. One end of the rotating shaft A fixed plate runs through one side plate of the heat insulation box and is fixedly connected to it, and a fixed plate is connected to one side of the other slider. Slide frames are installed at both ends of the fixed plate, and a connection is installed in the middle of the fixed plate to rotate vertically. shaft, the bottom end of the connecting shaft is threadedly connected to a clamping frame, and a superconducting cable body is connected between the fixed plate and the clamping frame.

Electric push rods are installed horizontally on both sides of the high-temperature box. The moving ends of the two electric push rods are connected to pull rods. One end of the two pull rods is connected to one side of the two slide blocks. There is a discharge hole inside the cover door. A rotating rod is installed on the top of the discharging trough, and a baffle is fixedly connected to the rotating rod. A torsion spring is connected between both sides of the baffle and the cover door. The two torsion springs are respectively sleeved on the rotating rod. At both ends, retaining bars are installed at the bottom of the discharge chute, and the retaining bars are in contact with one side of the baffle.

Preferably, mounting seats are installed on both inner side walls of the high-temperature box, and several heating pipes are installed equidistantly between the two mounting seats.

Preferably, two temperature sensors are vertically connected to the top of the high-temperature box, and a ventilation hole is provided on one side of the high-temperature box.

Preferably, a connecting seat is installed on one side of the high-temperature box, and one end of the electric push rod is connected to one side of the connecting seat.

Preferably, a controller and a display are installed on one side of the cover door, the controller and the display are electrically connected to the temperature sensor, and a visual window is provided on one side of the cover door.

Preferably, a limiting disc is installed at the bottom end of the connecting shaft. The limiting disc is located at the bottom of the clamping frame. The bottom of the connecting shaft is provided with threads. The clamping frame is threadedly connected to the bottom of the connecting shaft.

Preferably, four arc-shaped grooves are provided on the corresponding sides of the clamp frame and the fixing plate, and limit angles are installed on both ends of the clamp frame.

Preferably, the two ends of the clamp frame are slidably installed vertically between the two sliding frames and the two ends of the fixed plate, and the limiting angle is located at the top of the sliding frame.

Preferably, a limiting groove is provided on one side of the baffle, and the retaining bar is in contact with the limiting groove.

An aging test device for superconducting cables and its use method. The use method includes the following steps:

In the first step, several superconducting cable bodies to be subjected to aging tests are laterally installed into the arc-shaped grooves between the fixed plate and the clamping frame. The arrangement of the arc-shaped grooves can facilitate the positioning of the superconducting cable bodies. At this time, the rotating connecting shaft is under the action of the thread and the two sliding frames limit the two ends of the clamping frame, which can then drive the clamping frame to move to the top to stretch and fix the two ends of the superconducting cable body. It can ensure that the superconducting cable body will not loosen or shift during the test.

In the second step, after the superconducting cable body is fixed, the electric push rod is started to drive the pull rod to move, which in turn drives the heat insulation box to move the fixed plate, so that the superconducting cable body enters the high temperature box for high temperature aging testing. At this time Close the door and start the heating pipe to heat the high-temperature box. At this time, the motor can be started to drive the bevel gear to rotate, so that the meshed bevel gear drives the rotating shaft to rotate, so that the fixed plate drives the superconducting cable body to be tested along the rotating shaft. The center rotates slowly so that all sides of the superconducting cable body are heated evenly, increasing the accuracy of high-temperature test results. The superconducting cable body can be observed from the viewing window, and at this time the temperature sensor measures the temperature inside the high-temperature box. Detect and transmit the signal to the controller to visually see the temperature on the display.

The third step is to close the heating tube after the test is completed. At this time, the electric push rod can be started to push the pull rod outward, which will then drive the heat insulation box to make the fixing plate move the superconducting cable body out of the high temperature box. At this time, the fixing plate and clamp The frame resists and pushes the baffle outward. When the baffle rotates along the rotating rod, the torsion spring is compressed. After the superconducting cable body is removed from the discharge chute, the torsion spring rebounds the baffle to the vertical state. , and the baffle can resist the baffle to prevent the baffle from entering the high-temperature box through an excessive rotation angle. At this time, the baffle seals the discharge trough, thereby preventing the temperature in the high-temperature box from escaping through the discharge trough during testing, which is convenient For discharging superconducting cable bodies, testers do not need to enter the high-temperature environment in person, which reduces work intensity and operational risks.

The invention has the following beneficial effects:

1. With the cooperation of the baffle and the pull rod, after the superconducting cable body inspection is completed, the electric push rod is started to push the pull rod outward, thereby driving the superconducting cable body to move out of the high-temperature box, and the torsion spring rebounds the baffle. to the vertical state, and the discharge trough is sealed by the baffle, thereby preventing the temperature inside the high-temperature box from escaping through the discharge trough during testing, which facilitates the discharging of the superconducting cable body, and testers do not need to enter the high-temperature environment in person. , reduces work intensity and operational risks, and can protect the superconducting cable body from additional damage, and also helps reduce the operational risks and labor intensity of testers, improving work safety and comfort;

2. With the cooperation of the connecting shaft and the clamping frame, when fixing the superconducting cable body, several superconducting cable bodies are installed laterally into the arc-shaped grooves. The arrangement of the arc-shaped grooves can facilitate the fixation of the superconducting cable bodies. Positioning to facilitate the fixation of the superconducting cable body. At this time, rotating the connecting shaft can drive the clamp frame to move to the top to stretch and fix the two ends of the superconducting cable body, thereby ensuring that the superconducting cable body is in the test process. There will be no loosening or shifting in the cable body, thereby ensuring the accuracy and reliability of the test results, and avoiding unnecessary vibration or displacement of the superconducting cable body, which will cause interference or distortion of the test results;

3. With the cooperation of the rotating shaft and the fixed plate, when testing the superconducting cable body, start the motor, drive the bevel gear to rotate, and then the meshed bevel gear drives the rotating shaft to rotate, so that the fixed plate drives the superconducting cable body to be tested. Slowly rotating along the rotating shaft as the center causes all sides of the superconducting cable body to be heated evenly, increasing the accuracy of the high-temperature test results, thereby improving the authenticity and reliability of the high-temperature aging test results of the superconducting cable body.

Description of the drawings

Figure 1 is a schematic diagram of the internal structure of a high-temperature box of a superconducting cable aging test device proposed by the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a superconducting cable aging test device proposed by the present invention;

Figure 3 is a schematic diagram of the exploded structure of the connection between the cover door and the baffle of a superconducting cable aging test device proposed by the present invention;

Figure 4 is a schematic three-dimensional structural diagram of the connection between the baffle and the rotating rod of the aging test device for superconducting cables proposed by the present invention;

Figure 5 is a schematic top view of the connection between the slider and the heat insulation box of the aging test device for superconducting cables proposed by the present invention.

In the picture: 1. High-temperature box; 101. Mounting base; 102. Heating pipe; 103. Temperature sensor; 104. Ventilation hole; 105. Connection base; 106. Superconducting cable body; 2. Cover door; 201. Control 202. Display; 203. Visual window; 3. Slider; 4. Insulation box; 5. Motor; 6. Rotating shaft; 7. Bevel gear; 8. Fixed plate; 9. Sliding frame; 10. Connecting shaft; 1001. Limit disc; 1002. Thread; 11. Clamp frame; 1101. Arc groove; 1102. Limit angle; 12. Electric push rod; 13. Pull rod; 14. Rotary rod; 15. Baffle; 1501. Limit slot; 16. Torsion spring; 17. Stop bar.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

Referring to Figure 1-5, an aging test device for superconducting cables includes a high-temperature box 1. Mounting seats 101 are installed on both sides of the internal walls of the high-temperature box 1. The two mounting seats 101 are equidistantly installed with There are several heating tubes 102, two temperature sensors 103 are vertically connected to the top of the high-temperature box 1, and a ventilation hole 104 is provided on one side of the high-temperature box 1. A connection base 105 is installed on one side of the high-temperature box 1. The electric One end of the push rod 12 is connected to one side of the connecting seat 105. A cover door 2 is hinged on one side of the high temperature box 1. A controller 201 and a display 202 are installed on one side of the cover door 2. The controller 201 and the display 202 are connected to The temperature sensors 103 are all electrically connected. A viewing window 203 is provided on one side of the cover door 2. Sliders 3 are slidably installed on both sides of the high temperature box 1, and a heat insulation box 4 is installed on one side of one of the sliders 3. , a motor 5 is connected horizontally inside the heat insulation box 4, a rotating shaft 6 is mounted on one side of the heat insulation box 4, a bevel gear 7 is fixedly connected to the rotating end of the motor 5 and one end of the rotating shaft 6, and two bevel gears 7 Engage, one end of the rotating shaft 6 penetrates one side plate of the heat insulation box 4 and is fixedly connected to a fixed plate 8, and one side of the other slider 3 is connected to a fixed plate 8, and both ends of the fixed plate 8 are equipped with sliding frames 9 , a connecting shaft 10 is installed for vertical rotation in the middle of the fixed plate 8, and a limiting disk 1001 is installed at the bottom of the connecting shaft 10. The limiting disk 1001 can prevent the clamp frame 11 from detaching from the sliding frame 9 when it moves to the bottom. Inside, the limit disc 1001 is located at the bottom of the clamp frame 11, and the bottom of the connecting shaft 10 is provided with a thread 1002. The clamp frame 11 is threadedly connected to the bottom of the connecting shaft 10 through the thread 1002. The thread 1002 can facilitate the clamping frame 11 Moving up and down, the bottom end of the connecting shaft 10 is threaded with a clamp frame 11. Four arc-shaped grooves 1101 are provided on the corresponding sides of the clamp frame 11 and the fixed plate 8. Limiting angles are installed on both ends of the clamp frame 11. 1102. The set limit angle 1102 can prevent the clamp frame 11 from escaping from the sliding frame 9 when it moves toward the bottom. The two ends of the clamp frame 11 are vertically slidably installed on both sides of the two sliding frames 9 and the fixed plate 8 respectively. between the ends, and the limiting angle 1102 is located at the top of the sliding frame 9 , a superconducting cable body 106 is connected between the fixed plate 8 and the clamping frame 11 .

Electric push rods 12 are installed horizontally on both sides of the high-temperature box 1. The moving ends of the two electric push rods 12 are connected to pull rods 13. One end of the two pull rods 13 is connected to one side of the two sliders 3, and the door is covered. 2 is provided with a discharge chute inside, and a rotating rod 14 is mounted on the top of the discharging chute. A baffle 15 is fixedly connected to the rotating rod 14, and a limiting slot 1501 is provided on one side of the baffle 15. The baffle 17 In contact with the limit groove 1501, torsion springs 16 are connected between both sides of the baffle 15 and the cover door 2. The two torsion springs 16 are respectively sleeved on both ends of the rotating rod 14 and installed at the bottom of the discharge chute. There is a retaining bar 17 which is in contact with one side of the baffle 15 .

An aging test device for superconducting cables and its use method. The use method includes the following steps:

In the first step, several superconducting cable bodies 106 to be subjected to aging tests are laterally installed into the arc-shaped grooves 1101 between the fixed plate 8 and the clamping frame 11. The arrangement of the arc-shaped grooves 1101 can facilitate the superconducting wires. The cable body 106 is positioned. At this time, the rotating connecting shaft 10 is under the action of the thread 1002 and limits the two ends of the clamping frame 11 through the two sliding frames 9, which can then drive the clamping frame 11 to move to the top to clamp the superconducting wire. The two ends of the cable body 106 are stretched and fixed to ensure that the superconducting cable body 106 will not loosen or shift during the test.

In the second step, after the superconducting cable body 106 is fixed, the electric push rod 12 is started to drive the pull rod 13 to move, which can then drive the heat insulation box 4 to move the fixing plate 8 so that the superconducting cable body 106 enters the high temperature box 1 A high-temperature aging test is carried out inside the high-temperature box 1. At this time, the cover door 2 is closed, and the heating tube 102 is started to heat the inside of the high-temperature box 1. At this time, the motor 5 can be started to drive the bevel gear 7 to rotate, and then the meshed bevel gear 7 drives the rotating shaft 6 to rotate. Thereby, the fixed plate 8 drives the superconducting cable body 106 to be tested to slowly rotate along the rotating axis 6 , so that all sides of the superconducting cable body 106 are heated evenly, thereby increasing the accuracy of the high-temperature test results, and allowing the viewing window 203 to be viewed. The superconducting cable body 106 is observed, and at this time the temperature sensor 103 detects the temperature in the high-temperature box 1 and transmits the signal to the controller 201 to visually see the temperature on the display 202.

In the third step, after the detection is completed, the heating tube 102 is closed. At this time, the electric push rod 12 can be started to push the pull rod 13 outward, thereby driving the heat insulation box 4 to cause the fixing plate 8 to move the superconducting cable body 106 out of the high temperature box 1 At this time, the fixed plate 8 and the clamping frame 11 resist and push the baffle 15 outward. When the baffle 15 rotates along the rotating rod 14, the torsion spring 16 is compressed, so that the superconducting cable body 106 is discharged from the discharge chute. After removal, the baffle 15 is rebounded to the vertical state by the torsion spring 16, and the baffle 17 can resist the baffle 15 to prevent the baffle 15 from rotating at an excessive angle and entering the high temperature box 1. At this time, the baffle 15 is facing out. The trough is sealed, thereby preventing the temperature in the high-temperature box 1 from escaping through the outlet trough during testing, which facilitates the discharging of the superconducting cable body 106. Testers do not need to enter the high-temperature environment in person, which reduces work intensity and operation risk.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a ageing test device of superconducting cable, includes high temperature box (1), its characterized in that: one side of the high-temperature box body (1) is hinged with a cover door (2), sliding blocks (3) are slidably mounted on two sides of the inside of the high-temperature box body (1), one of the sliding blocks (3) is provided with a heat insulation box (4), a motor (5) is horizontally connected to the inside of the heat insulation box (4), a rotating shaft (6) is rotatably mounted on one side of the heat insulation box (4), a bevel gear (7) is fixedly sleeved at the rotating end of the motor (5) and one end of the rotating shaft (6), two bevel gears (7) are meshed, one end of the rotating shaft (6) penetrates through a side plate of the heat insulation box (4) and is fixedly connected with a fixed plate (8), the other sliding block (8) is connected with one side surface of the sliding block (3), sliding frames (9) are mounted at two ends of the fixed plate (8), a connecting shaft (10) is vertically rotatably mounted at the middle part of the fixed plate (8), a clamping frame (11) is sleeved at the bottom end of the connecting shaft (10), and a super cable (106) is connected between the fixed plate (8) and the clamping frame (11).

The utility model discloses a high temperature box, including high temperature box body (1), baffle (15) have been fixedly cup jointed on the baffle (14), all be connected with torsional spring (16) between the both sides face of baffle (15) and lid (2), two the removal end of electric putter (12) all is connected with pull rod (13), two the one end and the two of pull rod (13) a side connection of slider (3), the blown down tank has been seted up to the inside of lid (2), the top rotation of blown down tank is installed bull stick (14), baffle (15) have been fixedly cup jointed on bull stick (14), all be connected with torsional spring (16) between the both sides face of baffle (15) and lid (2), two torsional spring (16) cup jointed respectively at the both ends of bull stick (14), blend stop (17) are installed to the bottom department of blown down tank, blend stop (17) contact with a side of baffle (15).

2. The aging test apparatus for superconducting cable according to claim 1, wherein: the high-temperature box is characterized in that mounting seats (101) are mounted on two side walls of the inside of the high-temperature box body (1), and a plurality of heating pipes (102) are mounted between the two mounting seats (101) at equal intervals.

3. The aging test apparatus for superconducting cable according to claim 1, wherein: the top of the high-temperature box body (1) is vertically connected with two temperature sensors (103), and one side of the high-temperature box body (1) is provided with an air vent (104).

4. The aging test apparatus for superconducting cable according to claim 1, wherein: a connecting seat (105) is arranged on one side surface of the high-temperature box body (1), and one end of the electric push rod (12) is connected to one side surface of the connecting seat (105).

5. The aging test apparatus for superconducting cable according to claim 1, wherein: one side of the cover door (2) is provided with a controller (201) and a display (202), the controller (201) and the display (202) are electrically connected with the temperature sensor (103), and one side of the cover door (2) is provided with a visual window (203).

6. The aging test apparatus for superconducting cable according to claim 1, wherein: the bottom of connecting axle (10) is installed spacing disc (1001), spacing disc (1001) are located the bottom of pressing from both sides frame (11), the bottom department of connecting axle (10) is equipped with screw thread (1002), press from both sides frame (11) and cup joint the bottom at connecting axle (10) through screw thread (1002) screw thread.

7. The aging test apparatus for superconducting cable according to claim 1, wherein: four arc grooves (1101) are formed in one side, corresponding to the clamping frame (11) and the fixing plate (8), of the clamping frame (11), and limited angles (1102) are mounted at two ends of the clamping frame (11).

8. The device for burn-in testing of a superconducting cable according to claim 7, wherein: the two ends of the clamping frame (11) are respectively vertically and slidably arranged between the two sliding frames (9) and the two ends of the fixed plate (8), and the limiting angle (1102) is positioned at the top of the sliding frames (9).

9. The aging test apparatus for superconducting cable according to claim 1, wherein: a limit groove (1501) is formed in one side face of the baffle plate (15), and the baffle strip (17) is contacted with the limit groove (1501).

10. An aging test apparatus for a superconducting cable according to any one of claims 1 to 9 and a method of using the same, characterized in that: the using method comprises the following steps:

firstly, a plurality of superconducting cable bodies (106) to be subjected to aging test are transversely installed in an arc-shaped groove (1101) between a fixed plate (8) and a clamping frame (11), the superconducting cable bodies (106) can be conveniently positioned through the arrangement of the arc-shaped groove (1101), at the moment, a rotating connecting shaft (10) is limited at two ends of the clamping frame (11) through two sliding frames (9) under the action of threads (1002), the clamping frame (11) can be driven to move to the top to stretch and fix the two ends of the superconducting cable bodies (106), and further the superconducting cable bodies (106) can be prevented from loosening or shifting in the test process;

secondly, after the superconducting cable body (106) is fixed, an electric push rod (12) is started to drive a pull rod (13) to move, and then a heat insulation box (4) can be driven to move a fixing plate (8), so that the superconducting cable body (106) enters the high-temperature box body (1) to be subjected to high-temperature aging test, at the moment, a cover door (2) is closed, a heating pipe (102) is started to heat the high-temperature box body (1), at the moment, a motor (5) can be started, a bevel gear (7) is driven to rotate, and then the engaged bevel gear (7) drives a rotating shaft (6) to rotate, so that the fixing plate (8) drives the superconducting cable body (106) to be tested to slowly rotate along the rotating shaft (6) as a center, all sides of the superconducting cable body (106) are heated uniformly, the accuracy of a high-temperature test result is improved, the superconducting cable body (106) can be observed from a visible window (203), the temperature in the high-temperature box body (1) is detected by a temperature sensor (103), and a signal is transmitted to a controller (201) to be intuitively seen from the temperature of a display (202);

third step, after the detection is accomplished, close heating tube (102), this moment can start electric putter (12) outside promotion pull rod (13), and then drive heat-insulating box (4) make fixed plate (8) shift out in high temperature box (1) with superconducting wire cable body (106), fixed plate (8) and clamp frame (11) support and promote baffle (15) outside this moment, in baffle (15) follow bull stick (14) pivoted in-process torsional spring (16) compression, make superconducting wire cable body (106) shift out the back from the blown down tank, rebound baffle (15) to vertical state through torsional spring (16), and baffle (15) turned angle excessively get into in baffle (15) can be avoided supporting to baffle (15), baffle (15) are sealed to the blown down tank this moment, thereby can prevent that temperature in high temperature box (1) from running out through the blown down tank department when the test, be convenient for to the ejection of compact to superconducting wire cable body (106), the testers need not to get into high temperature environment personally, working strength and operation risk have been reduced.