A wire icing experiment device

Abstract

The utility model provides a kind of wire icing experiment equipment, including icing chamber, tensioning mechanism, fixed block, clamping block, transition block, heat insulating block, quick release structure, heating anti-freezing cavity and heat insulating cover;Heating anti-freezing cavity is equipped in the utility model, and quick release structure is located inside heating anti-freezing cavity;Therefore, in the icing process of icing chamber, quick release structure is always fluctuated up and down in certain temperature range, effectively prevent freezing of quick release structure in the wire icing process;Avoid the situation that wire icing layer falls off or wire clamp deforms when breaking ice by artificial prying or knocking in the past, ensure the accuracy of subsequent ice melting test.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to an experimental device for wire icing. Background Technology

[0002] In the operation of transmission lines, conductor icing is a critical hidden danger threatening line safety, potentially leading to serious accidents such as conductor tensile fracture and tower overturning. Therefore, conducting research and experiments on AC de-icing technology for transmission lines has significant engineering value. The core process of this type of experiment is as follows: first, the conductor is artificially iced using a simulated natural environment; then, the iced conductor is transferred to an installation platform for fixation; finally, an AC de-icing device is used to conduct de-icing tests and collect data.

[0003] The current transmission line icing equipment used in experiments is usually set up in an artificial climate chamber or a man-made spray chamber. A certain length of transmission line is clamped at both ends with clamps, and then the clamps are detachably connected to the output end of a tensioning device. After the conductor is tensioned to a certain extent, icing is performed. However, during the icing process, water mist easily adheres to the surface of the clamps and the output end of the tensioning device and condenses into ice, which can cause the clamps and the tensioning device to jam. At this time, when transferring the conductor and the clamps, it is necessary to manually pry or knock to break the ice before the clamps can be removed from the output end of the tensioning device. This process is prone to the ice layer falling off the conductor or the clamps deforming, thus affecting the subsequent de-icing test. Utility Model Content

[0004] The purpose of this utility model is to design a wire icing experimental device that does not have at least one of the above-mentioned disadvantages.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wire icing test device, comprising an icing chamber and a tensioning mechanism installed inside the icing chamber for tensioning the wire, further comprising a fixing block fixed to the tensioning end of the tensioning mechanism, a clamping block for clamping the wire, a transition block for connecting the clamping block and the fixing block, and a heat insulation block installed at the end of the clamping block, wherein the heat insulation block is located between the clamping block and the transition block, the transition block and the fixing block are connected by a quick-release structure, the fixing block has a heating and antifreeze cavity inside, the quick-release structure is located inside the heating and antifreeze cavity, and the heating and antifreeze cavity has a removable heat insulation cover.

[0006] Furthermore, the quick-release structure includes a fixed post fixed inside the heating and antifreeze cavity, a stud rotatably connected to the fixed post, and a limiting cylinder fixed to the side wall of the fixed post; the transition block is provided with a square shaft slidably connected to the inside of the limiting cylinder, and the inside of the square shaft is provided with an internal thread hole threaded to the stud.

[0007] Furthermore, the fixing column divides the heating and antifreeze cavity into a heating cavity and an installation cavity. The heating cavity is equipped with an electric heating wire. The heating cavity and the installation cavity are connected by several through holes. The limiting cylinder is located inside the heating cavity.

[0008] Furthermore, one end of the stud located inside the mounting cavity is provided with an internal hexagonal hole.

[0009] Furthermore, the heat insulation cover is snapped onto the end of the mounting cavity opposite to the fixing post.

[0010] Furthermore, the heat insulation cover is provided with a cable outlet.

[0011] Furthermore, the clamping block includes a wire clamp for clamping the wire and a support plate installed at the end of the wire clamp. The support plate has a plurality of support columns on the side away from the wire clamp. The support columns are connected to the transition block by locking bolts. The locking bolts pass through the heat insulation block, and the support columns are inserted into the interior of the heat insulation block.

[0012] Furthermore, the heat insulation block has a U-shaped groove on the side near the wire clamp.

[0013] Furthermore, the transition block has several protrusions inside, and a heat insulation sleeve is embedded inside the protrusion. The end of the locking bolt with the nut is located inside the heat insulation sleeve, and a heat insulation plug is provided at the end of the heat insulation sleeve located in the heating and antifreeze cavity.

[0014] Furthermore, the transition block is provided with an isolation cover, and the fixed block is provided with an annular notch at one end near the transition block to cooperate with the isolation cover. When the transition block and the fixed block are connected through the quick-release structure, the isolation cover is embedded outside the annular notch.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is provided with a heating and antifreeze chamber, and the quick-release structure is located inside the heating and antifreeze chamber; therefore, during the icing process in the icing chamber, the quick-release structure fluctuates up and down within a certain temperature range, thereby preventing the quick-release structure from freezing during the icing process of the wire; avoiding the situation where the ice layer of the wire falls off or the wire clamp is deformed when manually prying or knocking to break the ice in the past, and ensuring the accuracy of the subsequent de-icing test. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an enlarged schematic diagram of the tensioning end in the tensioning mechanism;

[0018] Figure 2 for Figure 1 A partial sectional view of the diagram;

[0019] Figure 3 for Figure 1 Another partial sectional view of the diagram;

[0020] Figure 4 This is a schematic diagram of the structure after the wire clamp and transition block have been removed.

[0021] The components are: 1. Conductor; 2. Wire clamp; 3. Support plate; 4. U-shaped groove; 5. Heat insulation block; 6. Transition block; 7. Fixing block; 8. Isolation cover; 9. Square shaft; 10. Heating chamber; 11. Mounting chamber; 12. Electric heating wire; 13. Stud; 14. Fixing post; 15. Through hole; 16. Heat insulation cover; 17. Heating and antifreeze chamber; 18. Support post; 19. Locking bolt; 20. Boss; 21. Heat insulation sleeve; 22. Heat insulation plug. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structure, features and effects of this utility model.

[0023] Example: Please refer to Figures 1-4 An experimental device for icing a conductor includes an icing chamber and a tensioning mechanism installed inside the icing chamber for tensioning a conductor 1. The icing chamber can be a common artificial climate chamber or a man-made spray chamber used for icing the conductor 1. The tensioning mechanism can also be achieved by using a cylinder or hydraulic cylinder to drive a telescopic rod to tension the conductor 1. Both of these are common structures and will not be described in detail here. In this embodiment, it also includes a fixing block 7 fixed to the tensioning end of the tensioning mechanism, a clamping block for clamping the conductor 1, a transition block 6 for connecting the clamping block and the fixing block 7, and a heat insulation block 5 installed at the end of the clamping block. The heat insulation block 5 is located between the clamping block and the transition block 6. The transition block 6 and the fixing block 7 are connected by a quick-release structure. The fixing block 7 has a heating and antifreeze cavity 17 inside. The quick-release structure is located inside the heating and antifreeze cavity 17. The heating and antifreeze cavity 17 has a removable heat insulation cover 16, which can be removable by a snap-fit.

[0024] During the icing process in the icing chamber, the temperature inside the heating and antifreeze cavity 17 will be at a certain temperature, which will prevent freezing, such as room temperature or about 10°-30° higher than room temperature. Since the quick-release structure is located inside the heating and antifreeze cavity, the temperature of the quick-release structure will fluctuate within a certain temperature range during the icing process, thus preventing the quick-release structure from freezing. Since the fixing block 7 is made of metal, the heat insulation block 5 effectively prevents the heat of the fixing block 7 from affecting the icing condition in the clamping block (ensuring the integrity of the overall icing state of "wire 1-clamp 2" and reflecting the true icing effect). It also prevents the heat insulation block 5 and the fixing block 7 from freezing and sticking together, facilitating the transfer of wire 1 after icing. Therefore, by placing the quick-release structure inside the heating and antifreeze cavity 17, this utility model avoids the situation where the ice layer of wire 1 easily falls off or the clamp 2 deforms when manually prying or knocking to break the ice, thus ensuring the accuracy of the subsequent de-icing test.

[0025] In one embodiment, the quick-release structure includes a fixed post 14 fixed inside the heating and antifreeze cavity 17, a stud 13 rotatably connected to the fixed post 14, and a limiting cylinder fixed to the side wall of the fixed post 14; the transition block 6 is provided with a square shaft 9 slidably connected to the inside of the limiting cylinder, and the inside of the square shaft 9 is provided with an internal threaded hole that is threadedly connected to the stud 13, so at this time, only the stud 13 needs to be rotated to realize the disassembly and assembly of the transition block 6 and the fixed block 7; the fixed post 14 divides the heating and antifreeze cavity 17 into a heating cavity 10 and an installation cavity 11, the heating cavity 10 is provided with an electric heating wire 12, and the heating cavity 10 and the installation cavity 11 are connected by several through holes 15, and the limiting cylinder is located inside the heating cavity 10; therefore, during the icing process, the electric heating wire 12 is activated to prevent the quick-release structure from freezing; the heating duration and activation of the electric heating wire 12 can be controlled by a temperature sensor installed inside the heating and antifreeze cavity 17, thereby ensuring a constant temperature inside the heating and antifreeze cavity 17;

[0026] One end of the stud 13 located inside the mounting cavity 11 is provided with an internal hexagonal hole. The end of the mounting cavity 11 opposite to the fixing post 14 is fitted with a heat insulation cover 16. Therefore, when disassembling and assembling the transition block 6, it is only necessary to remove the heat insulation cover 16, then insert an external hexagonal wrench into the internal hexagonal hole and rotate the external hexagonal wrench to rotate the stud 13, thereby enabling the square shaft 9 to move along its axial direction. When the square shaft 9 separates from the stud 13, the transition block 6 and the fixing block 7 will separate, thereby enabling the disassembly and assembly of the transition block 6. The heat insulation cover 16 is provided with a wire outlet to facilitate the installation of the control circuit of the electric heating wire 12. In addition, the transition block 6 is provided with an isolation cover 8. The end of the fixing block 7 near the transition block 6 is provided with an annular notch that mates with the isolation cover 8. When the transition block 6 and the fixing block 7 are connected by a quick-release structure, the isolation cover 8 is embedded outside the annular notch, thereby facilitating the disassembly and assembly of the quick-release structure. The isolation cover 8 and the annular notch mate to ensure the isolation between the inside of the heating and antifreeze cavity 17 and the outside.

[0027] In one embodiment, the clamping block includes a wire clamp 2 for clamping the wire 1 and a support plate 3 installed at the end of the wire clamp 2. The support plate 3 has four support columns 18 on the side facing away from the wire clamp 2. The support columns 18 are connected to the transition block 6 by locking bolts 19. The locking bolts 19 pass through the heat insulation block 5. The support columns 18 are inserted into the interior of the heat insulation block 5, thereby realizing the installation of the transition block 6 and the support plate 3. Both the support plate 3 and the transition block 6 are made of metal to ensure the tensioning quality of the wire 1. The heat insulation block 5 has a U-shaped groove 4 on the side near the wire clamp 2 to facilitate the wire clamp 2 to fully clamp the wire 1.

[0028] The transition block 6 has four protrusions 20 inside, and a heat insulation sleeve 21 is embedded inside the protrusions 20. The end of the locking bolt 19 with a nut is located inside the heat insulation sleeve 21, and the end of the heat insulation sleeve 21 located in the heating and antifreeze cavity 17 is provided with a heat insulation plug 22. The heat insulation plug 22 can be made of heat insulation material and is fixed to the end of the heat insulation sleeve 21 by threaded connection. This design reduces the heat transfer between the support plate 3 and the transition block 6 by isolating the metal locking bolt 19 and the transition piece from each other; and reduces the impact of the heat inside the heating and antifreeze cavity 17 on the wire clamp 2. The wire clamp 2 can be implemented by using two hinged clamp blocks connected by bolts to clamp the wire 1. In other optional embodiments, a handle or a standard connector related to the equipment used to transfer the wire 1 can be fixed to the side wall of the support plate 3, so as to facilitate the handling and transfer of the wire 1 and the wire clamp 2.

[0029] Working principle: When it is necessary to ic the wire 1, the electric heating wire 12 is activated first, thereby stabilizing the temperature in the heating and antifreeze chamber 17 within a certain temperature range. The quick-release structure is located inside the heating and antifreeze chamber, so during the icing process, the quick-release structure fluctuates within a certain temperature range, thus preventing the quick-release structure from freezing and facilitating the transfer of the wire 1 after icing. When it is necessary to transfer the wire 1, simply remove the heat insulation cover 16, then insert the external hex wrench into the internal hexagonal hole, and turn the external hex wrench to rotate the stud 13, thereby moving the square shaft 9 outward. When the square shaft 9 separates from the stud 13, the transition block 6 separates from the fixing block 7, and then the wire 1 and the wire clamp 2 can be transferred. Therefore, by placing the quick-release structure inside the heating and antifreeze chamber 17, this utility model avoids the situation where the ice layer on the wire 1 easily falls off or the wire clamp 2 is deformed when manually prying or knocking to break the ice, thus ensuring the accuracy of the subsequent ice melting test.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A conductor icing test apparatus, comprising an icing chamber and a tensioning mechanism installed inside the icing chamber for tensioning a conductor (1), characterized in that, It also includes a fixing block (7) fixed to the tensioning end of the tensioning mechanism, a clamping block for clamping the wire (1), a transition block (6) for connecting the clamping block and the fixing block (7), and a heat insulation block (5) installed at the end of the clamping block. The heat insulation block (5) is located between the clamping block and the transition block (6). The transition block (6) is connected to the fixing block (7) through a quick-release structure. The fixing block (7) has a heating and antifreeze cavity (17) inside. The quick-release structure is located inside the heating and antifreeze cavity (17). The heating and antifreeze cavity (17) has a removable heat insulation cover (16).

2. The wire icing experimental apparatus according to claim 1, characterized in that, The quick-release structure includes a fixed post (14) fixed inside the heating and antifreeze cavity (17), a stud (13) rotatably connected to the fixed post (14), and a limiting cylinder fixed to the side wall of the fixed post (14); the transition block (6) is provided with a square shaft (9) slidably connected to the inside of the limiting cylinder, and the inside of the square shaft (9) is provided with an internal thread hole that is threadedly connected to the stud (13).

3. The wire icing experimental apparatus according to claim 2, characterized in that, The fixed column (14) divides the heating and antifreeze cavity (17) into a heating cavity (10) and an installation cavity (11). The heating cavity (10) is provided with an electric heating wire (12). The heating cavity (10) and the installation cavity (11) are connected by several through holes (15). The limiting cylinder is located inside the heating cavity (10).

4. The wire icing experimental apparatus according to claim 3, characterized in that, One end of the stud (13) located inside the mounting cavity (11) is provided with an internal hexagonal hole.

5. The wire icing experimental apparatus according to claim 1, characterized in that, The clamping block includes a wire clamp (2) for clamping the wire (1) and a support plate (3) installed at the end of the wire clamp (2). The support plate (3) has a plurality of support columns (18) on the side away from the wire clamp (2). The support columns (18) are connected to the transition block (6) by locking bolts (19). The locking bolts (19) penetrate the heat insulation block (5). The support columns (18) are inserted into the interior of the heat insulation block (5).

6. The wire icing experimental apparatus according to claim 5, characterized in that, The heat insulation block (5) has a U-shaped groove (4) on the side near the wire clamp (2).

7. The conductor icing experimental apparatus according to claim 1, characterized in that, The transition block (6) is provided with an isolation cover (8), and the fixed block (7) is provided with an annular notch at one end near the transition block (6) to cooperate with the isolation cover (8). When the transition block (6) and the fixed block (7) are connected through the quick-release structure, the isolation cover (8) is embedded outside the annular notch.

Images