An apparatus for cyclically testing the performance of corrugated oil tank fins

Abstract

This utility model relates to the field of transformer testing technology, and in particular to a device for cyclically testing the working performance of heat sinks in corrugated oil tanks. The device includes a display screen, a PLC controller, a testing unit, and a piping unit. The display screen shows operating instructions, test results, and real-time data. The PLC controller receives user instructions and controls the coordinated operation of each component. The testing unit detects data inside the corrugated oil tank under test, thereby monitoring performance changes of the heat sinks on the outside of the corrugated oil tank. The piping unit connects an oil storage tank to the corrugated oil tank under test, drawing or draining oil from the storage tank to the corrugated oil tank under test according to preset testing conditions, thus causing the heat sinks on the outside of the corrugated oil tank to operate under high intensity. This utility model solves the technical problem that existing testing equipment cannot simulate the dynamic cyclic operating conditions of transformers in actual operation, and can achieve coordinated testing of multiple parameters such as heat dissipation performance, pressure resistance, and cyclic fatigue.

Description

Technical Field

[0001] This utility model relates to the field of transformer testing technology, and in particular to a device for cyclically testing the working performance of corrugated oil tank heat sinks. Background Technology

[0002] The heat sink fins of a transformer's corrugated oil tank are a core component ensuring the safe and stable operation of the transformer. Their heat dissipation performance directly determines the transformer's efficiency, service life, and operational reliability. During long-term operation, the heat sink fins must continuously dissipate the heat generated inside the tank due to electromagnetic losses through heat exchange with the external environment to maintain the oil temperature within a safe threshold. Especially under conditions such as high-temperature environments, high-load operation, or frequent start-stop cycles, the heat dissipation efficiency, structural stability, and fatigue resistance of the heat sink fins face severe challenges. Once heat dissipation fails, it may lead to accelerated insulation aging, localized overheating, or even burnout, causing power system failures.

[0003] Currently, existing technologies for performance testing of corrugated oil tank heat sinks mostly employ static or single-simulation testing methods. For example, a constant temperature chamber is used to simulate a fixed ambient temperature, and an electric heating device is used to test the static heat dissipation efficiency of the heat sink; or a single pressure test is conducted using a pressure testing machine to evaluate its structural strength. However, in actual operation, transformer load fluctuations cause periodic changes in oil temperature (such as day-night load differences and seasonal peak electricity consumption). The heat sink needs to operate continuously under dynamic thermal cycling (repeated temperature rises and falls) and pressure cycling (internal pressure fluctuations caused by oil thermal expansion and contraction). Static testing cannot accurately reflect its long-term service performance.

[0004] Furthermore, existing testing equipment has a low level of integration. Heat dissipation performance testing (such as temperature field distribution), pressure tolerance testing, and cyclic operating condition simulation often need to be performed separately. This is not only cumbersome and time-consuming, but also fails to capture the performance degradation patterns under the coupling of multiple parameters (such as the impact of micro-leakage at the weld seams of heat sinks caused by repeated thermal expansion and contraction, and the effect of corrugated structure deformation on heat dissipation efficiency). At the same time, most equipment lacks automated control and data linkage functions, making it difficult to accurately simulate actual operating conditions according to preset flow rates and cycle numbers. This results in discrepancies between test results and actual service conditions, failing to provide a reliable basis for the optimized design and quality control of heat sinks.

[0005] Therefore, there is an urgent need for an integrated device that can simulate the dynamic cyclic operating conditions of a transformer in actual operation and achieve coordinated detection of multiple parameters such as heat dissipation performance, pressure resistance, and cyclic fatigue, so as to improve the authenticity, efficiency and accuracy of the detection and ensure the reliability of the corrugated oil tank heat sink. Utility Model Content

[0006] The purpose of this invention is to propose a device for cyclic testing of the working performance of corrugated oil tank heat sinks, so as to solve the technical problem that existing testing equipment cannot simulate the dynamic cyclic working conditions of transformers in actual operation and realize the coordinated testing of multiple parameters such as heat dissipation performance, pressure resistance and cyclic fatigue.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A device for cyclically testing the working performance of heat sinks in a corrugated oil tank, used to test the heat dissipation performance of the corrugated oil tank, wherein heat sinks are installed on the outside of the corrugated oil tank, and includes a display screen, a PLC controller, a testing unit, and a piping unit.

[0009] The display screen is used to display operation instructions, detection results, and real-time data;

[0010] The PLC controller is used to receive user commands and control the coordinated operation of various components;

[0011] The detection unit is used to detect the data inside the corrugated oil tank to be tested, thereby monitoring the performance changes of the heat sink on the outside of the corrugated oil tank.

[0012] The pipeline unit is used to connect the oil reservoir to the corrugated oil tank to be tested, together forming a complete hydraulic circuit;

[0013] The pipeline unit includes a main control oil pump, an oil injection assembly, and an oil discharge assembly;

[0014] The main control oil pump is used to control the oil injection component and the oil discharge component to draw oil from the oil storage tank to the corrugated oil tank to be tested according to the preset detection conditions, so that the heat sink on the outside of the corrugated oil tank to be tested works at high intensity.

[0015] The preset detection conditions include preset traffic volume and preset number of detections.

[0016] Preferably, the oil injection assembly includes a front oil injection line, a rear oil injection line, a front oil injection solenoid valve, an oil injection check valve, an oil injection flow meter, and a rear oil injection solenoid valve.

[0017] The main control oil pump has two connection ports. The front oil injection line connects one of the connection ports to the oil storage tank, and the rear oil injection line connects the other connection port to the corrugated oil tank to be tested.

[0018] The pre-injection solenoid valve is located in the pre-injection pipeline;

[0019] The oil injection check valve, oil injection flow meter, and post-oil injection solenoid valve are sequentially installed in the post-oil injection pipeline.

[0020] Preferably, the oil discharge assembly includes a front oil discharge pipeline, a rear oil discharge pipeline, a front oil discharge solenoid valve, an oil discharge check valve, an oil discharge flow meter, and a rear oil discharge solenoid valve;

[0021] The front oil pipeline connects one of the connecting ports to the oil storage tank, and the rear oil pipeline connects the other connecting port to the corrugated oil tank to be tested.

[0022] The front oil discharge solenoid valve is located in the rear oil discharge pipeline;

[0023] The oil drain check valve, oil drain flow meter, and rear oil drain solenoid valve are sequentially installed in the front oil drain pipeline.

[0024] Preferably, the piping unit further includes two manual valves;

[0025] The two manual valves are respectively located at the two connection ports of the main control oil pump.

[0026] Preferably, the detection unit includes a temperature sensor and a pressure sensor;

[0027] The temperature sensor is used to monitor temperature changes inside the hydraulic station to be tested;

[0028] The pressure sensor is used to monitor pressure changes inside the hydraulic station to be tested.

[0029] Preferably, it also includes a remote monitoring unit;

[0030] The remote monitoring unit is electrically connected to the PLC controller. The remote monitoring unit is used to remotely monitor the operating status and test results of the equipment in real time, and to issue an alarm signal in a timely manner when an abnormality occurs.

[0031] Preferably, a host computer is also included;

[0032] The host computer is electrically connected to the PLC controller, and the host computer is used to record and analyze the working performance of the heat sink of the corrugated oil tank in real time during the testing process.

[0033] One of the above technical solutions has the following beneficial effects:

[0034] 1. Accurately simulates real operating conditions and improves the authenticity of testing: In response to the deficiency in the background technology that "static testing cannot reflect dynamic cyclic operating conditions", the equipment accurately reproduces the periodic changes in oil temperature and pressure cycles caused by transformer load fluctuations through the circulation injection and drainage design of the pipeline unit. It can capture the performance degradation of heat sinks under repeated thermal expansion and contraction and alternating stress, such as micro-leakage in weld seams and decreased heat dissipation efficiency. The test results are closer to the actual service conditions.

[0035] 2. Integrated control and testing for improved efficiency and collaboration: Addressing the issue of separate testing across multiple devices in existing technologies, the PLC controller integrates the functions of the cyclic control pipeline unit and the performance testing unit, achieving a unified process of "cyclic simulation - data acquisition - analysis and feedback." This eliminates the need for manual equipment switching, significantly shortening the testing cycle and avoiding the loss of parameter coupling information in step-by-step testing, such as the real-time impact of pressure fluctuations on heat dissipation efficiency.

[0036] 3. Automation and programmability enhance testing flexibility and accuracy: Relying on the PLC controller and preset parameter functions, the cyclic conditions can be flexibly adjusted according to the operating characteristics of different transformer models, such as load fluctuation frequency and flow range, to meet diverse testing needs. Compared with traditional manual operation, it reduces human error, and the real-time data feedback through the display screen 1 facilitates timely monitoring of anomalies by operators, ensuring testing accuracy.

[0037] 4. Provide data support for heat sink optimization design: The equipment can record dynamic data such as changes in heat dissipation efficiency and pressure tolerance limits during the cycle process. It can directly reflect the weak links of the heat sink under long-term high-intensity operation, such as easily deformable parts of the corrugated structure and heat dissipation blind spots. It provides quantitative basis for manufacturers to improve the corrugation shape, material selection or welding process, and helps to improve the reliability of transformers.

[0038] 5. Simplified System Structure and Cost Optimization: Compared to the traditional dual-pump design (where the injection pump and discharge pump are independent), this equipment requires only one master control pump, reducing the need for pump body procurement, installation space, and the number of supporting motors and controllers, thus lowering equipment manufacturing costs. Simultaneously, the single-pump design avoids the additional energy consumption when both pumps are on standby or switching in a dual-pump system. By optimizing the pump start-stop logic, the overall energy consumption of the equipment is reduced, maintenance points are decreased, spare parts inventory costs are lowered, and maintenance time is shortened. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the principle of a device for cyclic testing of the working performance of a corrugated oil tank heat sink according to the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of a device for cyclic testing of the working performance of a corrugated oil tank heat sink according to the present invention;

[0041] Figure 3 This is a schematic diagram of the automatic operation interface of the display screen in a device for cyclic testing of the working performance of a corrugated oil tank heat sink according to this utility model.

[0042] Figure 4 This is a schematic diagram of the manual operation interface of the display screen in a device for cyclic testing of the working performance of a corrugated oil tank heat sink according to this utility model.

[0043] In the attached diagram: 1. Display screen; 2. PLC controller; 3. Detection unit; 31. Temperature sensor; 32. Pressure sensor; 4. Piping unit; 41. Main oil pump; 421. Front oil injection pipeline; 422. Rear oil injection pipeline; 423. Front oil injection solenoid valve; 424. Oil injection check valve; 425. Oil injection flow meter; 426. Rear oil injection solenoid valve; 431. Front oil discharge pipeline; 432. Rear oil discharge pipeline; 433. Front oil discharge solenoid valve; 434. Oil discharge check valve; 435. Rear oil discharge solenoid valve; 436. Manual valve; 44. Oil storage tank; 5. Remote monitoring unit; 6. Host computer; 7. Corrugated oil tank; 100. Heat sink; 200. Detailed Implementation

[0044] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] A device for cyclically testing the working performance of heat sinks in a corrugated oil tank is used to test the heat dissipation performance of a corrugated oil tank 100, wherein heat sinks 200 are installed on the outside of the corrugated oil tank 100, and the device includes a display screen 1, a PLC controller 2, a testing unit 3, and a piping unit 4.

[0049] The display screen 1 is used to display operation instructions, detection results, and real-time data;

[0050] The PLC controller 2 is used to receive user commands and control the coordinated operation of various components;

[0051] The detection unit 3 is used to detect the data inside the corrugated oil tank 100 to be tested, thereby monitoring the performance changes of the heat sink 200 on the outside of the corrugated oil tank 100.

[0052] The pipeline unit 4 is used to connect the oil storage tank 5 to the corrugated oil tank 100 to be tested, together forming a complete hydraulic circuit.

[0053] The pipeline unit 4 includes a main control oil pump 41, an oil injection assembly, and an oil discharge assembly;

[0054] The main control oil pump 41 is used to control the oil injection component and the oil discharge component to draw or discharge oil from the oil storage tank 5 to the corrugated oil tank 100 to be tested according to the preset detection conditions, so that the heat sink 200 on the outside of the corrugated oil tank 100 to be tested works at high intensity.

[0055] The preset detection conditions include preset traffic volume and preset number of detections.

[0056] like Figure 1-2 As shown, the equipment used for cyclic testing of the corrugated oil tank 100 and the heat sink 200 simulates the actual operating conditions of a transformer through dynamic oil circulation. Combined with automated control and real-time detection, it achieves accurate evaluation of the performance of the heat sink 200. The specific process is as follows:

[0057] The operator inputs preset detection parameters, such as circulating oil flow rate, oil discharge flow rate, number of cycles, and target oil temperature range, through the display screen 1. The parameter commands are transmitted to the PLC controller 2. The corrugated oil tank 100 to be tested is connected to the oil storage tank 5 through the pipeline unit 4 to form a closed hydraulic circuit. The detection units 3, such as the temperature sensor 31 and the pressure sensor 32, are connected to key locations inside the corrugated oil tank 100, such as the middle of the oil cavity and the contact point of the heat sink 200.

[0058] PLC controller 2 drives the main control oil pump 41. The main control oil pump 41 is controlled by changing the motor rotation direction or the flow direction of the hydraulic valve group. During the oil injection phase, it acts as an "oil injection pump," injecting pressurized oil from the oil reservoir 5 into the corrugated oil tank 100 through the oil injection components at a preset flow rate. Simultaneously, according to a preset number of commands, it switches to the "oil discharge pump" during the oil discharge phase, drawing oil from the corrugated oil tank 100 back into the oil reservoir 5. This bidirectional switching is precisely controlled by PLC controller 2, and combined with the opening and closing sequence of the solenoid valves in the oil injection and discharge components, forms a "oil injection-pressure holding-oil discharge" cycle.

[0059] Oil filling stage: Simulates the rise in oil temperature and expansion of oil volume when the transformer load increases, causing the heat sink 200 to bear thermal load and structural stress due to the increase in internal pressure;

[0060] Oil discharge stage: Simulates the decrease in oil temperature and shrinkage of oil volume when the load decreases. The heat sink 200 experiences pressure release and temperature change, realizing the coupled simulation of dynamic thermal cycle and pressure cycle.

[0061] During the cycle, the detection unit 3 continuously collects data such as the temperature inside the corrugated oil tank 100 (e.g., oil temperature), the inner wall temperature of the heat sink 200, and pressure, and transmits this data to the PLC controller 2 in real time. After processing the data, the controller can display parameters such as sampling time, real-time temperature, real-time pressure, and number of cycles on the display screen 1, as shown in the table below. This allows for the assessment of the heat dissipation efficiency of the heat sink 200 under continuous cyclic conditions (e.g., the rate of oil temperature drop per unit time) and structural stability (e.g., whether the pressure fluctuates abnormally), thus completing the performance evaluation of the heat sink 200 under dynamic conditions.

[0062]

[0063] It should be noted that the PLC controller 2 can perform cyclic testing in manual or automatic mode. During the cycle, when the number of cycles reaches the preset value or abnormal parameters such as sudden pressure drop or temperature runaway are detected, the PLC controller 2 will automatically stop the cycle and issue an alarm through the corresponding indicator light on the display screen 1. At the same time, it will save the detected real-time parameters such as temperature, pressure, and number of cycles for display and query.

[0064] In a preferred embodiment, an S7-1200 PLC, a Jukong intelligent remote controller, and a TP900 ComfortHMI Siemens touchscreen are used to design a control system, which includes functions such as displaying operation commands, detection results, and real-time data. Figure 3-4 As shown, the corrugated oil tank 100 automatically circulates oil for pumping and discharging according to a preset flow rate and preset number of times, and records information such as real-time temperature and pressure changes.

[0065] To further explain, the oil injection assembly includes a front oil injection line 421, a rear oil injection line 422, a front oil injection solenoid valve 423, an oil injection check valve 424, an oil injection flow meter 425, and a rear oil injection solenoid valve 426.

[0066] The main control oil pump 41 has two connection ports. The front oil injection line 421 connects one of the connection ports to the oil storage tank 5, and the rear oil injection line 422 connects the other connection port to the corrugated oil tank 100 to be tested.

[0067] The pre-injection solenoid valve 423 is located in the pre-injection pipeline 421;

[0068] The oil injection check valve 424, the oil injection flow meter 425, and the post-oil injection solenoid valve 426 are sequentially installed in the post-oil injection pipeline 422.

[0069] like Figure 2 As shown, during the oil filling stage of the dynamic cycle simulation, the PLC controller 2, according to the preset flow command, first closes the oil discharge assembly, and opens the front oil filling solenoid valve 423, the oil filling check valve 424, the oil filling flow meter 425, and the rear oil filling solenoid valve 426. The main control oil pump 41 draws oil from the oil storage tank 5 through the front oil filling pipeline 421. Subsequently, the oil is pressurized by the main control oil pump 41 and enters the rear oil filling pipeline 422. The oil then passes through the oil filling check valve 424, the oil filling flow meter 425, and the rear oil filling solenoid valve 426 in sequence before being injected into the corrugated oil tank 100 to be tested.

[0070] The oil flow meter 425 monitors the oil flow rate through the post-injection pipeline 422 in real time and feeds the data back to the PLC controller 2. The PLC controller 2 adjusts the output power of the main control oil pump 41 or the opening of the front injection solenoid valve 423 and the post-injection solenoid valve 426 to make the actual flow rate consistent with the preset value. The oil injection check valve 424 not only prevents the oil from flowing back to the post-injection pipeline 422 due to the internal pressure of the corrugated oil tank 100 when the oil injection is paused or switched to the oil discharge stage, ensuring the unidirectionality and pressure stability of the oil injection process, but also prevents the front injection pipeline from flowing back after the oil discharge stops. The residual hydraulic oil in line 421 and the post-injection line 422 passes through the injection flow meter 425 again, affecting the calculation of the injection flow meter 425 and thus affecting the final test results. The independent control of the front injection solenoid valve 423, the injection check valve 424 and the post-injection solenoid valve 426 can realize the rapid start and stop of the injection process. With the timing logic of the PLC controller 2, it can accurately respond to the stage switching of "injection-pressure holding" in the cyclic test. For example, after a single injection is completed, the front injection solenoid valve 423, the injection check valve 424 and the post-injection solenoid valve 426 close synchronously to maintain the pressure in the oil tank.

[0071] To further explain, the oil discharge assembly includes a front oil discharge line 431, a rear oil discharge line 432, a front oil discharge solenoid valve 433, an oil discharge check valve 434, an oil discharge flow meter 435, and a rear oil discharge solenoid valve 436.

[0072] The front oil pipeline 431 connects one of its connecting ports to the oil storage tank 5, and the rear oil pipeline 432 connects the other connecting port to the corrugated oil tank 100 to be tested.

[0073] The front oil discharge solenoid valve 433 is located in the rear oil discharge pipeline 432;

[0074] The oil drain check valve 434, the oil drain flow meter 435, and the rear oil drain solenoid valve 436 are sequentially installed in the front oil drain pipeline 431.

[0075] like Figure 2 As shown, during the oil draining stage of the dynamic cycle simulation, the PLC controller 2 issues an oil draining command, first closing the oil injection components, and opening the front drain solenoid valve 433, the drain check valve 434, the drain flow meter 435, and the rear drain solenoid valve 436. The oil in the corrugated oil tank 100 under test flows out through the rear drain pipeline 432 and the front drain solenoid valve 433 under its own pressure and the suction action of the main control oil pump 41. Subsequently, the oil enters the front drain pipeline 431 through the connection port of the main control oil pump 41, and then flows back to the oil storage tank 5 through the drain check valve 434, the drain flow meter 435, and the rear drain solenoid valve 436 in sequence, completing one oil draining process.

[0076] The oil discharge flow meter 435 monitors the oil discharge flow in real time and feeds the data back to the PLC controller 2. The PLC controller 2 adjusts the operating parameters of the main control oil pump 41 or the opening of the rear oil discharge solenoid valve 436 and the front oil discharge solenoid valve 433 to ensure that the oil discharge flow is consistent with the preset value, accurately simulating the oil flow state when the transformer load decreases. The oil discharge check valve 434 not only effectively prevents the oil in the oil storage tank 5 from flowing back into the corrugated oil tank 100 through the rear oil discharge pipeline 432, ensuring the unidirectionality of the oil discharge process and avoiding interference with the pressure stability in the corrugated oil tank 100, but also prevents the oil from flowing back into the corrugated oil tank 100 after the oil discharge stops. The residual hydraulic oil in the front drain line 431 and the rear drain line 432 passes through the drain flow meter 435 again, which affects the calculation of the drain flow meter 435 and thus affects the final test result. The independent control of the drain check valve 434, the front drain solenoid valve 433 and the rear drain solenoid valve 436 can realize the rapid start and stop of the drain process. With the timing logic of the PLC controller 2, the "drain-pressure holding" stage switching can be accurately completed. For example, after the drain reaches the preset amount, the drain check valve 434, the front drain solenoid valve 433 and the rear drain solenoid valve 436 will close in time to maintain the low pressure state in the bellows tank 100.

[0077] To further explain, the piping unit 4 also includes two manual valves 44;

[0078] The two manual valves 44 are respectively located at the two communication ports of the main control oil pump 41.

[0079] like Figure 2 As shown, two manual valves 44 are respectively installed at the two connection ports of the main control oil pump 41, and work together with the oil injection assembly, the oil discharge assembly and the main control oil pump 41 to play a key role in different stages of equipment operation, as detailed below:

[0080] During normal cyclic testing of the equipment, manual valve 44 is fully open, which does not affect the oil flow between the main control oil pump 41 and the oil injection and discharge components. At this time, the main control oil pump 41 can smoothly control the oil delivery of the oil injection and discharge pipelines through the connection port, ensuring that the oil injection and discharge processes proceed normally according to the preset program.

[0081] When equipment requires maintenance, such as when the main control oil pump 41 malfunctions and needs replacement, or when a component in the oil filling or draining assembly needs repair, the manual valve 44 at the corresponding connection port can be closed. For example, if the main control oil pump 41 needs repair, closing both manual valves 44 isolates the main control oil pump 41 from the oil filling and draining pipelines, preventing oil in the oil storage tank 5 and the corrugated oil tank 100 from flowing out through the connection port, avoiding environmental pollution and resource waste caused by oil leakage, and also providing a safe operating environment for maintenance work.

[0082] During the equipment commissioning phase, manual valve 44 can be used to manually adjust the oil flow rate. By appropriately closing part of the manual valve 44, the oil flow cross-section in the pipeline is changed, thereby adjusting the oil flow rate output by the main control oil pump 41. This helps to test the operating status of the equipment under different flow rates and provides a reference for setting the parameters of the PLC controller 2.

[0083] To further explain, the detection unit 3 includes a temperature sensor 31 and a pressure sensor 32;

[0084] The temperature sensor 31 is used to monitor the temperature changes inside the hydraulic station to be tested;

[0085] The pressure sensor 32 is used to monitor pressure changes inside the hydraulic station to be tested.

[0086] like Figure 2 As shown, temperature sensor 31 and pressure sensor 32 are the core components of detection unit 3, respectively monitoring the temperature and pressure changes inside the corrugated oil tank 100 to be tested. They work together with PLC controller and pipeline unit 4 to provide key data support for the performance evaluation of heat sink 200.

[0087] Among them, the temperature sensor 31 and the pressure sensor 32 can be selected from models that are resistant to high temperature and corrosion. For example, the temperature sensor 31 can be of type WSS, and the pressure sensor 32 can be of type TY-115P or type YW.

[0088] Further explanation also includes remote monitoring unit 6;

[0089] The remote monitoring unit 6 is electrically connected to the PLC controller 2. The remote monitoring unit 6 is used to remotely monitor the operating status and test results of the equipment in real time, and to issue an alarm signal in a timely manner when an abnormality occurs.

[0090] Further explanation also includes the host computer 7;

[0091] The host computer 7 is electrically connected to the PLC controller 2. The host computer 7 is used to record and analyze the working performance of the heat sink 200 of the corrugated oil tank 100 in real time during the testing process.

[0092] like Figure 1 As shown, the remote monitoring unit 6 and the host computer 7 support remote access. Through the 4G / 5G intelligent remote PLC controller 2, the device can be remotely observed, debugged, statistically analyzed, and other functions can be performed remotely from anywhere in real time.

[0093] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A device for testing the working performance of corrugated tank fin, for testing the heat dissipation performance of a corrugated tank (100), the outer side of the corrugated tank (100) is provided with a fin (200), characterized in that, It includes a display screen (1), a PLC controller (2), a detection unit (3), and a piping unit (4); The display screen (1) is used to display operation instructions, detection results and real-time data; The PLC controller (2) is used to receive user instructions and control the coordinated operation of various components; The detection unit (3) is used to detect the data inside the corrugated oil tank (100) to be tested, thereby monitoring the performance changes of the heat sink (200) on the outside of the corrugated oil tank (100); The pipeline unit (4) is used to connect the oil storage tank (5) to the corrugated oil tank (100) to be tested, together forming a complete hydraulic circuit; The pipeline unit (4) includes a main control oil pump (41), an oil injection assembly, and an oil discharge assembly; The main control oil pump (41) is used to control the oil injection component and the oil discharge component to draw or discharge oil from the oil storage tank (5) to the corrugated oil tank (100) to be tested according to the preset detection conditions, so that the heat sink (200) on the outside of the corrugated oil tank (100) to be tested works at high intensity. The preset detection conditions include preset traffic volume and preset number of detections.

2. The apparatus for circulating test wave corrugated oil tank fin performance according to claim 1, characterized in that, The oil injection assembly includes a front oil injection line (421), a rear oil injection line (422), a front oil injection solenoid valve (423), an oil injection check valve (424), an oil injection flow meter (425), and a rear oil injection solenoid valve (426). The main control oil pump (41) has two connection ports. The front oil injection line (421) connects one of the connection ports to the oil storage tank (5), and the rear oil injection line (422) connects the other connection port to the corrugated oil tank (100) to be tested. The pre-injection solenoid valve (423) is located in the pre-injection pipeline (421); The oil injection check valve (424), oil injection flow meter (425), and post-oil injection solenoid valve (426) are sequentially installed in the post-oil injection pipeline (422).

3. An apparatus for cyclically testing the performance of corrugated finned oil coolers as claimed in claim 2 wherein, The oil discharge assembly includes a front oil discharge line (431), a rear oil discharge line (432), a front oil discharge solenoid valve (433), an oil discharge check valve (434), an oil discharge flow meter (435), and a rear oil discharge solenoid valve (436). The front oil pipeline (431) is connected to one of the connecting ports and the oil storage tank (5), and the rear oil pipeline (432) is connected to the other connecting port and the corrugated oil tank (100) to be tested. The front oil discharge solenoid valve (433) is located in the rear oil discharge pipeline (432); The oil drain check valve (434), oil drain flow meter (435), and rear oil drain solenoid valve (436) are sequentially installed in the front oil drain pipeline (431).

4. The device for cyclically testing the working performance of corrugated oil tank heat sinks according to claim 3, characterized in that, The piping unit (4) also includes two manual valves (44); The two manual valves (44) are respectively located at the two communication ports of the main control oil pump (41).

5. The device for cyclically testing the working performance of corrugated oil tank heat sinks according to claim 1, characterized in that, The detection unit (3) includes a temperature sensor (31) and a pressure sensor (32); The temperature sensor (31) is used to monitor the temperature changes inside the hydraulic station to be tested; The pressure sensor (32) is used to monitor pressure changes inside the hydraulic station to be tested.

6. The device for cyclically testing the working performance of corrugated oil tank heat sinks according to claim 1, characterized in that, It also includes a remote monitoring unit (6); The remote monitoring unit (6) is electrically connected to the PLC controller (2). The remote monitoring unit (6) is used to remotely monitor the operating status and test results of the equipment in real time, and to issue an alarm signal in a timely manner when an abnormality occurs.

7. The device for cyclically testing the working performance of corrugated oil tank heat sinks according to claim 1, characterized in that, It also includes the host computer (7); The host computer (7) is electrically connected to the PLC controller (2). The host computer (7) is used to record and analyze the working performance of the heat sink (200) of the corrugated oil tank (100) during the detection process in real time.

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