Fireproof bus duct shell corrosion resistance detection device

Abstract

The utility model relates to detection equipment technical field discloses fire -proof bus duct shell corrosion -resisting property detection device, including detection box, the sample bearing mechanism of sliding setting in the first groove body of detection box, set up in the dynamic extrusion unit and static extrusion unit of sample bearing mechanism top, adjustablely install the spray assembly of position in the inner wall top surface of detection box, set up in the waste liquid circulation subassembly of detection box outside and fixedly connected in the ventilation drying assembly of detection box lateral wall, sample bearing mechanism has horizontal support surface, and bus duct body is placed on horizontal support surface, the injection direction of spray assembly is towards horizontal support surface, and the waste liquid collection container inside of sample bearing mechanism is communicated with the liquid pumping end of waste liquid circulation subassembly. The utility model has the advantages of simulating multiple service environment, dynamic and static extrusion working condition switchable, corrosion -resisting property detection comprehensive, waste liquid recycling and sample drying convenient.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a device for testing the corrosion resistance of fireproof busbar trunking shells. Background Technology

[0002] Fire-resistant busbar trunking, as a key component in power transmission and distribution systems, is widely used in high-rise buildings, subways, factories, and other locations. The corrosion resistance of its outer shell directly affects the service life and electrical safety of the busbar trunking. During actual service, the busbar trunking shell must withstand not only corrosive media in the environment (such as humid air, salt spray, and chemical gases), but also external mechanical stresses (such as fastening forces during installation and pressure from adjacent equipment). The combined effect of corrosion and stress accelerates the failure of the shell material.

[0003] Currently, most existing corrosion resistance testing devices use a single salt spray corrosion test chamber. Samples are placed inside the chamber and subjected to constant salt spray. After the testing cycle, the samples are removed to assess the degree of corrosion. However, these devices have the following shortcomings: First, they cannot simulate the service condition where the outer shell is simultaneously subjected to mechanical compressive stress, leading to discrepancies between the test results and actual conditions. Second, they cannot distinguish the different effects of dynamic alternating extrusion and static constant extrusion on the corrosion resistance of the outer shell. Third, the waste liquid generated during the testing process is directly discharged, causing resource waste and environmental pollution. Fourth, after the test, residual corrosive liquid remains on the sample surface, which can easily cause secondary pollution to operators and the environment after removal, and natural drying is inefficient.

[0004] Therefore, how to design a fireproof busbar trough shell corrosion resistance testing device that can simulate the synergistic effect of extrusion and corrosion, switch between dynamic and static extrusion conditions, and has the functions of waste liquid recycling and rapid drying has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the corrosion resistance of fireproof busbar trunking shells. It has the advantages of simulating various service environments, switching between dynamic and static extrusion conditions, comprehensive corrosion resistance testing, waste liquid recycling, and convenient sample drying, thus solving the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A fireproof busbar trunking shell corrosion resistance testing device includes a testing chamber, a sample carrying mechanism slidably disposed in the first tank of the testing chamber, a dynamic extrusion unit and a static extrusion unit disposed above the sample carrying mechanism, a spray assembly that is adjustablely installed on the top surface of the inner wall of the testing chamber, a waste liquid circulation assembly disposed outside the testing chamber, and a ventilation and drying assembly fixedly connected to the side wall of the testing chamber. The testing box has a first groove at one end and a second groove through the top. The sample carrying mechanism has a horizontal support surface, and the busbar trunking body is placed on the horizontal support surface; The spray direction of the spray assembly is towards the horizontal support surface; The liquid extraction end of the waste liquid circulation component is connected to the inside of the waste liquid collection container of the sample carrying mechanism, and the liquid outlet end of the waste liquid circulation component is connected to the liquid inlet end of the spray component. The air outlet of the ventilation and drying component is connected to the inside of the testing chamber; The power supply line of the dynamic extrusion unit extends through the sample carrying mechanism to the outside of the testing chamber.

[0007] Preferably, the sample carrying mechanism includes two U-shaped blocks fixedly connected to the middle of both sides of the inner wall of the detection chamber and arranged with their concave surfaces facing each other, a box body slidably arranged in the concave surfaces of the two U-shaped blocks and open at the top, a first handle symmetrically fixed to both sides of the upper end of the box body, multiple through holes opened through the lower end face of the box body, a collection box placed on the bottom surface of the inner wall of the detection chamber, a first liquid outlet pipe fixedly connected through the side wall of the collection box, a first valve body arranged on the first liquid outlet pipe, and support units symmetrically arranged on both sides of the detection chamber.

[0008] It is worth noting that, through the sliding engagement of the box and the U-shaped block, the operator can use the first handle to pull the box out of the testing box, which facilitates the removal and placement of the busbar trunking body; the multiple through holes on the lower end face of the box allow the sprayed corrosive liquid to drip quickly into the collection box, achieving solid-liquid separation; the first liquid outlet pipe on the side wall of the collection box, in conjunction with the first valve body, facilitates the periodic discharge of waste liquid or its transportation to the waste liquid circulation component.

[0009] Preferably, the support unit includes a first fixing block that is fixed to the side wall of the test box, a screw hole that is opened through the end of the first fixing block, a hollow threaded cylinder that is threaded to the inner wall of the screw hole and extends to the inside of the test box, and an mounting cylinder that is threaded to the outer peripheral wall of the hollow threaded cylinder; the upper end faces of the two mounting cylinders together form a horizontal support surface.

[0010] It is worth noting that the hollow threaded cylinder is threadedly connected to the first fixed block, which allows for horizontal position adjustment to accommodate busbar trunking bodies of different widths. The mounting cylinder is threaded onto the outer circumferential wall of the hollow threaded cylinder, and its height can be finely adjusted as needed to ensure that the upper surfaces of the two mounting cylinders are on the same horizontal plane, thus forming a stable support surface. The hollow structure of the hollow threaded cylinder provides a wiring channel for the power supply lines of the dynamic extrusion unit, avoiding messy wiring inside the testing box.

[0011] Preferably, the dynamic extrusion unit includes a support block placed on the bottom surface of the inner wall of the busbar trunking body, an electric cylinder fixedly connected to the center of the upper end surface of the support block, an extrusion disc fixedly connected to the upper end of the output shaft of the electric cylinder, and a wire outlet groove that runs through the side wall of the electric cylinder; the power supply line of the electric cylinder is led out from the wire outlet groove.

[0012] It is worth noting that the load-bearing block transfers the overall weight of the electric cylinder to the bottom of the inner wall of the busbar trunking, simulating the static pre-pressure borne by the outer shell; the electric cylinder drives the extrusion plate to move up or down, applying dynamic alternating extrusion force to the inner wall of the outer shell, which can realistically simulate dynamic working conditions such as installation vibration or extrusion by adjacent equipment; after the power supply line is led out from the outlet trunking, it passes through the hollow threaded cylinder and exits the test box, realizing the waterproof sealing of the internal drive unit and the safe isolation of the external power supply.

[0013] Preferably, the static extrusion unit includes a first weight placed on the bottom surface of the inner wall of the busbar trunking body, a second handle fixedly connected to the center of the upper end face of the first weight, a second weight placed on the bottom surface of the inner wall of the busbar trunking body, and a third handle fixedly connected to the center of the upper end face of the second weight.

[0014] It is worth noting that the first and second weights provide constant static pressure of different weights, and the operator can easily put or take the weights into or out of the busbar trunking through the second and third handles; the static extrusion unit and the dynamic extrusion unit can be used alone or in combination to simulate corrosion behavior under different stress conditions, thus enriching the detection modes.

[0015] Preferably, the spray assembly includes a hollow box movably placed on the top surface of the inner wall of the testing chamber, multiple nozzles fixedly connected to the lower end face of the hollow box, an inlet pipe fixedly connected to the center of the upper end face of the hollow box and extending through the second groove to the top of the testing chamber, a nut threaded onto the outer peripheral wall of the inlet pipe, and multiple second fixing blocks radially fixed to the outer peripheral wall of the nut; the interiors of the inlet pipe, the hollow box, and the nozzles are interconnected in sequence, and the lower end face of the second fixing block is in contact with the upper end face of the testing chamber.

[0016] It is worth noting that the hollow box can move horizontally along the top surface of the inner wall of the test chamber, which facilitates the adjustment of the spray coverage area; the nut is threadedly connected to the liquid inlet pipe, and the second fixing block is radially fixed to the outer peripheral wall of the nut. When the nut is tightened, the lower end face of the second fixing block presses against the upper end face of the test chamber, thereby locking the entire spray assembly in the set position; the nozzle atomizes the corrosive liquid and sprays it evenly onto the surface of the busbar trunking shell to simulate a humid or salt spray corrosion environment.

[0017] Preferably, the waste liquid recycling assembly includes a pump body disposed outside the detection box, a second outlet pipe fixedly connected to the outlet end of the pump body, a suction pipe fixedly connected to the suction end of the pump body, and a second valve body disposed on the suction pipe; the end of the second outlet pipe away from the pump body is connected to the upper inner wall of the inlet pipe; the suction end of the suction pipe extends through the side wall of the collection box into its interior.

[0018] It is worth noting that the pump body draws the corrosive liquid that has undergone initial settling from the collection tank through the liquid extraction pipe, and then transports it to the spray assembly through the second liquid outlet pipe, realizing the recycling of the corrosive liquid and greatly reducing waste liquid discharge; the second valve body is used to control the on and off of the liquid extraction, making it easy to cut off the circulation loop when replacing the corrosive liquid or performing maintenance.

[0019] Preferably, the ventilation and drying assembly includes an axial flow fan disposed outside the testing chamber, multiple support legs fixedly connected to the lower end face of the axial flow fan, an air collection hood fixedly connected to the upper air outlet end of the axial flow fan, an air supply pipe fixedly connected to the upper end of the air collection hood, and an air outlet box that is through-connected to the side wall of the testing chamber; the air outlet end of the air supply pipe is through-connected to the side wall of the air outlet box; the air outlet end of the air outlet box communicates with the interior of the testing chamber.

[0020] It is worth noting that the high-speed airflow generated by the axial flow fan is evenly blown into the test chamber after passing through the air collection hood, air supply pipe, and air outlet box, which quickly dries the outer shell of the busbar trunking that has completed the corrosion test, avoiding direct contact between operators and residual corrosive liquid; the support legs keep the axial flow fan at a distance from the ground to prevent vibration transmission and blockage of the air inlet.

[0021] Preferably, multiple through holes are evenly distributed in a matrix on the lower end face of the box; a gap is left between the lower end face of the box and the bottom face of the first groove.

[0022] It is worth noting that the matrix-style uniformly distributed through holes ensure that the dripping corrosive liquid can be discharged quickly and will not accumulate in the box; the gap between the lower end face of the box and the bottom face of the first tank provides flow space for the corrosive liquid to flow smoothly into the collection box after flowing out of the through holes.

[0023] Preferably, the first weight and the second weight have different weights; the diameter of the extrusion disc is smaller than the internal width of the busbar trunking body.

[0024] It is worth noting that different weights of weights provide multiple static pressure options, expanding the coverage of testing conditions; the diameter of the extrusion disc is smaller than the internal width of the busbar, ensuring that the extrusion disc can be freely raised and lowered under the drive of the electric cylinder without interfering with the side wall of the busbar.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a dynamic extrusion unit and a static extrusion unit, in conjunction with a spray assembly, realizes the detection of the synergistic effect of corrosive media and mechanical stress, solves the problem that existing devices cannot simulate the extrusion-corrosion coupling condition, and significantly improves the consistency between the detection results and the actual situation. 2. This utility model achieves flexible switching between dynamic alternating extrusion and static constant extrusion modes by setting an extrusion disc driven by an electric cylinder and weights of different weights. It can simulate various service stress states such as installation vibration and fastening pressure, thus enriching the testing modes. 3. This utility model solves the problem of resource waste and environmental pollution caused by direct discharge of waste liquid by setting up a waste liquid circulation component, which pumps the corrosive liquid in the collection tank back to the spray component for reuse, and reduces the detection and operation costs. 4. By setting up a ventilation and drying component, this utility model can quickly dry the sample after the test, avoiding the safety risks of operators directly contacting the corrosive liquid, and improving the testing efficiency. Attached Figure Description

[0026] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shows a three-dimensional disassembled structure of the busbar trunking body, dynamic extrusion unit, and static extrusion unit of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of the testing box of this utility model; Figure 4 The diagram shown is a three-dimensional disassembled structural diagram of the liquid inlet pipe and nut of this utility model; Figure 5 The diagram shown is a three-dimensional structural schematic of the cable outlet groove of this utility model. Figure 6 The diagram shown is a three-dimensional structural schematic of the ventilation and drying component and the waste liquid circulation component of this utility model.

[0027] Reference numerals: 1. Detection box; 2. First tank; 3. U-shaped block; 4. Box; 5. Through hole; 6. Collection box; 7. First outlet pipe; 8. First valve body; 9. First handle; 10. First fixing block; 11. Screw hole; 12. Hollow threaded cylinder; 13. Suction pipe; 14. Second valve body; 15. Busbar trunking body; 16. Bearing block; 17. Electric cylinder; 18. Extrusion plate; 19. First weight; 20. Second handle; 21. Second weight; 22. Third handle; 23. Second tank; 24. Hollow box; 25. Nozzle; 26. Inlet pipe; 27. Nut; 28. Second fixing block; 29. ​​Mounting cylinder; 30. Outlet trough; 31. Support leg; 32. Axial flow fan; 33. Gas collection hood; 34. Air supply pipe; 35. Air outlet box; 36. Pump body; 37. Second outlet pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To address the shortcomings of existing technologies, such as the inability to simulate the synergistic effect of extrusion and corrosion, the inability to switch between dynamic and static extrusion conditions, the wasteful direct discharge of waste liquid, and the inconvenience of sample drying, the following technical solution is proposed. Please refer to [link / reference needed]. Figures 1 to 6 .

[0030] A device for testing the corrosion resistance of a fireproof busbar trunking shell includes a testing chamber 1, a sample carrying mechanism slidably disposed within a first groove 2 of the testing chamber 1, a dynamic extrusion unit and a static extrusion unit disposed above the sample carrying mechanism, a spray assembly adjustablely mounted on the top surface of the inner wall of the testing chamber 1, a waste liquid circulation assembly disposed outside the testing chamber 1, and a ventilation and drying assembly fixedly connected to the side wall of the testing chamber 1. The first groove 2 is located at one end of the testing chamber 1, and a second groove 23 extends through the upper end of the testing chamber 1. The sample carrying mechanism has a horizontal support surface, on which the busbar trunking body 15 is placed. The spray direction of the spray assembly faces the horizontal support surface. The liquid extraction end of the waste liquid circulation assembly is connected to the interior of the waste liquid collection container of the sample carrying mechanism, and the liquid outlet end of the waste liquid circulation assembly is connected to the liquid inlet end of the spray assembly. The air outlet end of the ventilation and drying assembly is connected to the interior of the testing chamber 1. The power supply line of the dynamic extrusion unit extends through the sample carrying mechanism to the exterior of the testing chamber 1.

[0031] In this embodiment, specifically, the sample carrying mechanism includes two U-shaped blocks 3 fixedly connected to the middle of both sides of the inner wall of the detection chamber 1 and arranged with their concave surfaces facing each other; a box body 4 slidably disposed within the concave surfaces of the two U-shaped blocks 3 and open at the top; a first handle 9 symmetrically fixed to both sides of the upper end of the box body 4; multiple through holes 5 penetrating the lower end surface of the box body 4; a collection box 6 placed on the bottom surface of the inner wall of the detection chamber 1; a first liquid outlet pipe 7 penetratingly fixed to the side wall of the collection box 6; a first valve body 8 disposed on the first liquid outlet pipe 7; and support units symmetrically disposed on both sides of the detection chamber 1. The multiple through holes 5 are evenly distributed in a matrix on the lower end surface of the box body 4, and a gap is left between the lower end surface of the box body 4 and the bottom surface of the first groove 2.

[0032] In this embodiment, specifically, the support unit includes a first fixing block 10 that is fixed to the side wall of the detection box 1, a screw hole 11 that is opened through the end of the first fixing block 10, a hollow threaded cylinder 12 that is threaded onto the inner wall of the screw hole 11 and extends into the interior of the detection box 1, and a mounting cylinder 29 that is threaded onto the outer peripheral wall of the hollow threaded cylinder 12. The upper end faces of the two mounting cylinders 29 together form a horizontal support surface.

[0033] In this embodiment, the dynamic extrusion unit specifically includes a support block 16 placed on the bottom surface of the inner wall of the busbar trunking body 15, an electric cylinder 17 fixedly connected to the center of the upper end face of the support block 16, an extrusion disc 18 fixedly connected to the upper end of the output shaft of the electric cylinder 17, and a wire outlet groove 30 extending through the side wall of the electric cylinder 17. The power supply line of the electric cylinder 17 is led out from the wire outlet groove 30, passes through a pre-set or temporarily opened wire hole in the side wall of the busbar trunking body 15, and then passes through the interior of the hollow threaded cylinder 12 to exit the exterior of the detection box 1. The diameter of the extrusion disc 18 is smaller than the internal width of the busbar trunking body 15.

[0034] In this embodiment, specifically, the static extrusion unit includes a first weight 19 placed on the bottom surface of the inner wall of the busbar trunking body 15, a second handle 20 fixedly connected to the center of the upper end face of the first weight 19, a second weight 21 placed on the bottom surface of the inner wall of the busbar trunking body 15, and a third handle 22 fixedly connected to the center of the upper end face of the second weight 21. The first weight 19 and the second weight 21 have different weights.

[0035] In this embodiment, the spray assembly specifically includes a hollow box 24 movably placed on the top surface of the inner wall of the detection chamber 1, multiple nozzles 25 fixedly connected to the lower end face of the hollow box 24, an inlet pipe 26 fixedly connected to the center of the upper end face of the hollow box 24 and extending through the second groove 23 to the top of the detection chamber 1, a nut 27 threaded onto the outer peripheral wall of the inlet pipe 26, and multiple second fixing blocks 28 radially fixed to the outer peripheral wall of the nut 27. The interiors of the inlet pipe 26, the hollow box 24, and the nozzles 25 are interconnected sequentially, and the lower end face of the second fixing block 28 is in contact with the upper end face of the detection chamber 1.

[0036] In this embodiment, specifically, the waste liquid circulation assembly includes a pump body 36 disposed outside the detection tank 1, a second outlet pipe 37 fixedly connected to the outlet end of the pump body 36, a suction pipe 13 fixedly connected to the suction end of the pump body 36, and a second valve body 14 disposed on the suction pipe 13. The end of the second outlet pipe 37 away from the pump body 36 communicates with the upper inner wall of the inlet pipe 26. The suction end of the suction pipe 13 extends through the side wall of the collection tank 6 into its interior.

[0037] In this embodiment, specifically, the ventilation and drying assembly includes an axial flow fan 32 disposed outside the testing chamber 1, multiple support legs 31 fixedly connected to the lower end face of the axial flow fan 32, an air collection hood 33 fixedly connected to the upper air outlet end of the axial flow fan 32, an air supply pipe 34 fixedly connected to the upper end of the air collection hood 33, and an air outlet box 35 that is through-connected to the side wall of the testing chamber 1. The air outlet end of the air supply pipe 34 is through-connected to the side wall of the air outlet box 35. The air outlet end of the air outlet box 35 communicates with the interior of the testing chamber 1.

[0038] Working principle: When in use, the operator first pulls the box 4 out of the first groove 2 of the test box 1 using the first handle 9. According to the size of the bus trunking body 15 to be tested and the testing requirements, the placement method is selected: For larger bus trunking bodies 15 or those that need to simulate extrusion conditions, they are placed on the upper end face (i.e., the horizontal support surface) of the two mounting cylinders 29; for smaller bus trunking bodies 15, they can be placed directly inside the box 4 so that they can be directly sprayed with corrosive liquid during the spraying process. After placement, the box 4 is pushed back into the test box 1. Depending on the required testing conditions, select to install either a dynamic extrusion unit or a static extrusion unit: If dynamic alternating extrusion stress needs to be simulated, place the bearing block 16 and electric cylinder 17 inside the busbar trunking body 15, with the extrusion disc 18 facing upwards. The power supply line of the electric cylinder 17 is led out through the cable outlet 30, passes through the pre-set or temporarily opened cable passage hole on the side wall of the busbar trunking body 15, and then extends through the internal cavity of the hollow threaded cylinder 12 to the outside of the testing box 1, connecting to an external controller; If static constant extrusion stress needs to be simulated, select the first weight block 19 or the second weight block 21 according to the required pressure value, and place it inside the busbar trunking body 15 using the second handle 20 or the third handle 22. Subsequently, the position of the spray assembly is adjusted: the inlet pipe 26 is moved along the second tank 23, so that the hollow box 24 slides to a suitable position on the top surface of the inner wall of the detection box 1. The nut 27 is tightened, and the lower end face of the second fixing block 28 presses against the upper end face of the detection box 1 to complete the fixing of the spray assembly. A predetermined concentration of corrosive liquid (such as salt solution, acid solution, etc.) is injected into the collection box 6. The first valve body 8 is closed, the second valve body 14 is opened, and the pump body 36 is started. The corrosive liquid enters the hollow box 24 through the suction pipe 13, the second outlet pipe 37, and the inlet pipe 26. Finally, it is atomized by the nozzle 25 and evenly sprayed onto the outer surface of the busbar trunking body 15 to simulate a humid and corrosive environment. During the spraying process, if a dynamic extrusion unit is installed and the electric cylinder 17 is started at the same time, so that its output shaft reciprocates at a preset frequency, driving the extrusion plate 18 to apply dynamic alternating extrusion force to the inner wall of the outer shell, the corrosion behavior under installation vibration conditions can be simulated; if only a heavy block is placed without starting the electric cylinder 17, the corrosion behavior under constant static pressure is simulated; if the busbar trunking body 15 is placed directly in the box 4 without any extrusion unit installed, only a simple corrosion liquid spraying test is performed. The sprayed corrosion liquid flows down from the surface of the busbar trunking outer shell and drips into the collection box 6 through the through hole 5 on the lower end face of the box 4. The pump body 36 pumps the liquid in the collection box 6 back to the spraying assembly to achieve circulating spraying. After the testing cycle is completed, the pump body 36 and electric cylinder 17 are turned off, the first valve body 8 is opened, and the waste liquid in the collection box 6 is discharged to the external waste liquid tank through the first outlet pipe 7. Then, the axial flow fan 32 is started, and the airflow is evenly blown into the testing box 1 through the air collection hood 33, air supply pipe 34, and air outlet box 35 to quickly dry the outer surface of the busbar trunking body 15. After drying is completed, the axial flow fan 32 is turned off, the box body 4 is pulled out, and the busbar trunking body 15 is taken out. Its corrosion resistance is evaluated by observing the corrosion morphology of the outer surface, measuring corrosion weight loss or coating adhesion, etc.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fireproof bus duct shell corrosion resistance detection device, characterized in that, Includes a test chamber (1), a sample carrying mechanism that is slidably set in the first tank (2) of the test chamber (1), a dynamic extrusion unit and a static extrusion unit set above the sample carrying mechanism, a spray assembly that is adjustablely installed on the top surface of the inner wall of the test chamber (1), a waste liquid circulation assembly set outside the test chamber (1), and a ventilation and drying assembly that is fixedly connected to the side wall of the test chamber (1). The first groove (2) is provided at one end of the test box (1), and the second groove (23) is provided through the upper end of the test box (1). The sample carrying mechanism has a horizontal support surface, and the busbar body (15) is placed on the horizontal support surface; The spray direction of the spray assembly is towards the horizontal support surface; The liquid extraction end of the waste liquid circulation component is connected to the inside of the waste liquid collection container of the sample carrying mechanism, and the liquid outlet end of the waste liquid circulation component is connected to the liquid inlet end of the spray component. The air outlet of the ventilation and drying component is connected to the inside of the testing box (1); The power supply line of the dynamic extrusion unit extends through the sample carrying mechanism to the outside of the test box (1).

2. The fireproof bus duct enclosure corrosion resistance detection device according to claim 1, characterized in that, The sample carrying mechanism includes two U-shaped blocks (3) fixedly connected to the middle of the inner wall of the test box (1) and arranged with their concave surfaces facing each other, a box body (4) slidably arranged in the concave surfaces of the two U-shaped blocks (3) and open at the top, a first handle (9) symmetrically fixed to the upper two sides of the box body (4), multiple through holes (5) through the lower end face of the box body (4), a collection box (6) placed on the bottom surface of the inner wall of the test box (1), a first liquid outlet pipe (7) through the side wall of the collection box (6), a first valve body (8) arranged on the first liquid outlet pipe (7), and support units symmetrically arranged on the two side walls of the test box (1).

3. The fireproof bus duct shell corrosion resistance detection device according to claim 2, characterized in that, The support unit includes a first fixing block (10) that is fixed to the side wall of the test box (1), a screw hole (11) that is opened through the end of the first fixing block (10), a hollow threaded cylinder (12) that is threaded to the inner wall of the screw hole (11) and extends to the inside of the test box (1), and an installation cylinder (29) that is threaded to the outer peripheral wall of the hollow threaded cylinder (12); the upper surfaces of the two installation cylinders (29) together form a horizontal support surface.

4. The fireproof bus duct enclosure corrosion resistance detection device according to claim 1, characterized in that, The dynamic extrusion unit includes a support block (16) placed on the bottom surface of the inner wall of the busbar trunking body (15), an electric cylinder (17) fixedly connected to the center of the upper end face of the support block (16), an extrusion disc (18) fixedly connected to the upper end of the output shaft of the electric cylinder (17), and a wire outlet groove (30) that runs through the side wall of the electric cylinder (17); the power supply line of the electric cylinder (17) is led out from the wire outlet groove (30).

5. The fireproof bus duct enclosure corrosion resistance detection device according to claim 1, characterized in that, The static extrusion unit includes a first weight (19) placed on the bottom surface of the inner wall of the busbar trunking body (15), a second handle (20) fixedly connected to the center of the upper end face of the first weight (19), a second weight (21) placed on the bottom surface of the inner wall of the busbar trunking body (15), and a third handle (22) fixedly connected to the center of the upper end face of the second weight (21).

6. The fireproof bus duct enclosure corrosion resistance detection device according to claim 1, characterized in that, The spray assembly includes a hollow box (24) that can be movably placed on the top surface of the inner wall of the test box (1), multiple nozzles (25) that are fixed through the lower end of the hollow box (24), an inlet pipe (26) that is fixed through the center of the upper end of the hollow box (24) and extends through the second groove (23) to the top of the test box (1), a nut (27) that is threaded onto the outer peripheral wall of the inlet pipe (26), and multiple second fixing blocks (28) that are fixed radially onto the outer peripheral wall of the nut (27); the interiors of the inlet pipe (26), the hollow box (24), and the nozzles (25) are interconnected in sequence, and the lower end of the second fixing block (28) is in contact with the upper end of the test box (1).

7. The fireproof bus duct enclosure corrosion resistance detection device according to claim 6, characterized in that, The waste liquid circulation assembly includes a pump body (36) located outside the detection box (1), a second outlet pipe (37) fixedly connected to the outlet end of the pump body (36), a suction pipe (13) fixedly connected to the suction end of the pump body (36), and a second valve body (14) located on the suction pipe (13). The end of the second outlet pipe (37) away from the pump body (36) is connected to the upper inner wall of the inlet pipe (26); The suction end of the suction tube (13) extends through the side wall of the collection box (6) into its interior.

8. The fireproof bus duct enclosure corrosion resistance detection device according to claim 1, characterized in that, The ventilation and drying assembly includes an axial flow fan (32) located outside the test chamber (1), multiple support legs (31) fixedly connected to the lower end face of the axial flow fan (32), an air collection hood (33) fixedly connected to the upper air outlet end of the axial flow fan (32), an air supply pipe (34) fixedly connected to the upper end of the air collection hood (33), and an air outlet box (35) that is fixedly connected to the side wall of the test chamber (1). The air outlet end of the air supply pipe (34) is fixedly connected to the side wall of the air outlet box (35). The air outlet end of the air outlet box (35) is connected to the inside of the test chamber (1).

9. The fireproof bus duct enclosure corrosion resistance detection device according to claim 2, characterized in that, Multiple through holes (5) are evenly distributed in a matrix on the lower end face of the box (4); a gap is left between the lower end face of the box (4) and the bottom face of the first groove (2).

10. The fireproof bus duct enclosure corrosion resistance detection device according to claim 4 or 5, characterized in that, The weights of the first weight (19) and the second weight (21) are different; the diameter of the extrusion plate (18) is smaller than the internal width of the busbar body (15).

Images