Water wash type permeation detection method and apparatus

Abstract

The application discloses a kind of water washing type penetration detection method and device, it is related to detection technical field, by real-time acquisition detection water of the real-time water pressure of the detection water to be sprayed on the surface of the workpiece to be detected, when real-time water pressure is not higher than pre-spraying pressure, real-time acquisition real-time water temperature of detection water, when real-time water temperature is in pre-spraying temperature range, then start water pump and detection water is sprayed on the surface of the workpiece to be detected and carries out water washing penetration detection operation, using real-time water pressure is not higher than pre-spraying pressure and real-time water temperature is in pre-spraying temperature range, start water pump and detection water is sprayed on the surface of the workpiece to be detected and carries out water washing penetration detection operation, can obtain the water temperature and water pressure of detection water in real time, and according to real-time measured water temperature and water pressure, water pump can be controlled to start and stop in time, ensure that water washing agent is evenly sprayed to the surface of the gap in the workpiece to be detected, guarantee the stability and reliability of water washing type penetration detection system when carrying out penetration detection.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and in particular to a water-washing type penetrant testing method and apparatus. Background Technology

[0002] Penetrant testing is a non-destructive testing method based on the capillary action principle for inspecting surface opening defects. Penetrant testing, without damaging the performance of the tested object, utilizes theories of physics, chemistry, materials science, and engineering to effectively inspect various engineering materials, components, and products. It evaluates their integrity, continuity, and reliability. Penetrant testing is an important means of achieving quality control, saving raw materials, improving processes, and increasing labor productivity in product manufacturing. It is also an indispensable tool in equipment maintenance, used to detect defects such as fatigue cracks that occur during use, preventing catastrophic accidents during continued equipment operation. The basic operating steps of water-washable penetrant testing are: surface treatment → application of water-based penetrant → water washing → drying → development → inspection.

[0003] Penetrant testing has strict requirements for water temperature and pressure. The water pressure cannot exceed 0.345 MPa, and the water temperature must be controlled between 10℃ and 40℃ under normal circumstances. In existing technologies, penetrant testing is typically performed by spraying water onto the surface of the object to remove excess penetrant. However, when using a water sprayer, the water temperature and pressure cannot be monitored in real time. This results in the water pressure and temperature not being readily apparent when sprayed onto the workpiece surface, ultimately leading to defects in the process parameter control of the penetrant testing system. This raises questions about the stability of the testing system and the reliability of the test results. Summary of the Invention

[0004] The main objective of this invention is to propose a water-washing penetrant testing method and apparatus, aiming to solve the problem that in the prior art, when using a water sprayer for penetrant testing, the water temperature and pressure of the testing water cannot be monitored in real time. As a result, when the testing water is sprayed onto the surface of the workpiece to be tested, the water pressure and temperature cannot be displayed intuitively, which ultimately leads to defects in the process parameter control of the penetrant testing system, affecting the stability of the testing system and raising questions about the reliability of the test results.

[0005] To achieve the above objectives, in a first aspect, the present invention proposes a water-washing type penetrant testing method, comprising the following steps: Real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested is collected; When the real-time water pressure is not higher than the pre-spraying pressure, the real-time water temperature of the test water is collected in real time; When the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the test water is sprayed onto the surface of the workpiece to be tested, so as to perform the test operation after removing excess penetrant or pre-treating the surface of the workpiece to be tested.

[0006] In one embodiment, after the step of collecting the real-time water temperature of the detection water when the real-time water pressure is not higher than the pre-spraying pressure, the method further includes: When the real-time water temperature is greater than the maximum temperature value of the pre-spraying temperature range, the water pump is turned off and the external cooling device is controlled to cool the test water. When the real-time water temperature is within the pre-spraying temperature range, the step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested is performed, so as to remove excess penetrant or pre-treat the surface of the workpiece to be tested before performing the test operation.

[0007] In one embodiment, the step of real-time acquisition of the water pressure of the test water to be sprayed onto the surface of the workpiece to be tested includes: A water pressure sensor is used to collect the real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested.

[0008] In one embodiment, the step of collecting the real-time water temperature of the test water when the real-time water pressure is not higher than the pre-spraying pressure includes: When the real-time water pressure is not higher than the pre-spray pressure, a temperature sensor is used to collect the real-time water temperature of the test water.

[0009] In one embodiment, the step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested and performing a water-washing penetration test when the real-time water temperature is within the pre-spraying temperature range includes: When the real-time water temperature is within the pre-spraying temperature range, the operator can verify their fingerprint using the fingerprint recognition module installed on the water pump. After fingerprint authentication is completed, the water pump is turned on and the detection water is sprayed onto the surface of the workpiece to be tested to perform water washing penetration testing.

[0010] In one embodiment, before the step of real-time acquisition of the real-time water pressure of the test water to be sprayed onto the surface of the workpiece to be tested, the method further includes: The water used for testing is pre-stored in a water tank, and a temperature sensor is installed in the water tank.

[0011] Based on the same technical concept, in a second aspect, the present invention also proposes a water washing permeation detection device for performing the water washing type permeation detection method described in the first aspect, the water washing permeation detection device comprising: An outer casing, within which an installation space is formed; A water storage tank, installed within the installation space, contains a water storage space for storing testing water. A drain hole is formed on the side wall of the water storage space. A water pressure sensor for detecting the testing water pumped from the drain hole and a temperature sensor for detecting the temperature of the testing water are installed near the drain hole in the water storage space. A water pump is installed inside the housing. The water pump's inlet is connected to the outlet, and the water pump's outlet is connected to a spray pipe. When the real-time water pressure of the test water is within the pre-spraying pressure and the real-time water temperature is within the pre-spraying temperature range, the water pump delivers the test water from the water storage space to the spray nozzles of the spray pipe and sprays it onto the surface of the workpiece to be tested, so as to perform the test operation after removing excess penetrant or pre-treating the surface of the workpiece to be tested.

[0012] In one embodiment, the water storage tank is equipped with a heating element and a stirring element for stirring the test water. The heating element can heat the test water when the real-time temperature is lower than the lowest temperature value of the pre-spraying temperature range.

[0013] In one embodiment, a cooling unit is also installed in the water storage space. The cooling unit can cool the test water when the water temperature of the test water is higher than the highest temperature value of the pre-spraying temperature range, and turn on the water pump when the water temperature of the test water is within the pre-spraying temperature range, and pump the test water in the water storage space to the spray nozzle through the spray pipe and spray it onto the surface of the workpiece to be tested for water washing penetration testing.

[0014] In one embodiment, a worker identification module is also installed on the outer casing, and the worker identification module is communicatively connected to the water pump.

[0015] The technical solution of this invention acquires the real-time water pressure of the testing water to be sprayed onto the surface of the workpiece in real time. When the real-time water pressure is not higher than the pre-spraying pressure, the real-time water temperature of the testing water is also acquired. When the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the testing water is sprayed onto the surface of the workpiece for water washing and penetration testing. This allows the invention to acquire the water temperature and pressure of the testing water in real time and control the start and stop of the water pump accordingly. This ensures that the penetration testing system avoids the influence of excess penetrant on the test results, ensuring the stability of the testing system and improving the reliability of the test results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A flowchart of the water-washing type penetrant testing method provided by the present invention; Figure 2 A front-view structural schematic diagram of the water washing permeation detection device provided by the present invention; Figure 3 for Figure 2 A structural schematic diagram of the water washing and permeation detection device in the example, viewed from the rear. Figure 4 for Figure 2 A schematic diagram of the structure of the water washing permeation detection device shown in the example from the right view. Figure 5 for Figure 2 A schematic diagram of the structure of the water washing permeation detection device shown in the example from the left view. Figure 6 for Figure 2 A top-view structural schematic diagram of the water washing permeation detection device in the example; Figure 7 This is a structural schematic diagram of the water washing permeation detection device as an example of the present invention, viewed from below.

[0018] Figure label: 10. Outer casing; 100. Water tank; 110. Water storage space; 200. Water pressure sensor; 300. Temperature sensor; 400. Water pump; 500. Spray pipe; 600. Heating element; 700. Stirring element; 800. Cooling element; 900. Operator identification module.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] In penetrant testing, water-wash penetrant testing has specific requirements for the temperature and pressure of the testing water. The water pressure is limited to below 0.345 MPa, and the water temperature is maintained between 10 and 40 degrees Celsius. In existing technologies, when using a spray bottle for water washing, the temperature and pressure of the testing water cannot be monitored in real time. This results in uneven distribution of the cleaning agent on the surface of the workpiece, preventing it from fully penetrating open defects. Consequently, the sensitivity of the testing system is adversely affected, the defect detection rate decreases, and the reliability of the test results declines.

[0024] For example, in penetrant testing of aero-engine turbine blades, the surface of the workpiece to be inspected contains micron-sized cracks. Testing water is sprayed onto the blade surface using a spray bottle. Changes in ambient temperature cause the water temperature to exceed the range of 10 to 40 degrees Celsius, while manual operation causes water pressure fluctuations exceeding the threshold of 0.345 MPa. In this scenario, the cleaning agent cannot penetrate the micro-cracks evenly, resulting in some defects not being detected by the developer, ultimately preventing the inspection system from accurately identifying surface defects.

[0025] This invention proposes a water-washing type penetrant testing method and apparatus.

[0026] Please see Figures 1 to 7 For ease of understanding, this water-washing type penetrant testing method includes the following steps: S100: Real-time acquisition of the water pressure of the test water to be sprayed on the surface of the workpiece to be tested; S200. When the real-time water pressure is not higher than the pre-spraying pressure, the real-time water temperature of the test water is collected in real time. S300. When the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the test water is sprayed onto the surface of the workpiece to be tested, so as to perform the test operation after removing excess penetrant or pre-treating the surface of the workpiece to be tested.

[0027] It should be specifically and clearly stated that, in this embodiment, the example pre-approval pressure is 0.345 MPa, and the example pre-spraying temperature range is 10℃-40℃.

[0028] Specifically, the water-washing type penetrant testing method of this invention includes real-time acquisition of the water pressure of the test water to be sprayed onto the surface of the workpiece to be tested. Step S100 is mainly used to obtain the pressure information of the test water before spraying. For example, a pressure gauge can be installed on the water supply pipeline, and the operator can manually read and record the pressure value. Alternatively, a mechanical pressure sensor can be installed on the water supply pipeline. The pressure sensor can convert the pressure signal into a mechanical indication for the operator to observe, thus enabling the present invention to acquire real-time water pressure, but manual intervention or observation may be required.

[0029] When the real-time water pressure is not higher than the pre-spraying pressure, the water-washing type permeation detection method of this invention collects the real-time water temperature of the test water. Step S200 is mainly used to further obtain the temperature information of the test water under the premise that the water pressure meets the requirements. For example, a mercury thermometer can be installed on the water supply pipeline, and the temperature value can be manually read by the operator. Alternatively, a bimetallic thermometer can be installed on the water supply pipeline, which can indicate the current water temperature through the pointer for the operator to observe. Thus, this invention can achieve real-time water temperature collection, but manual reading or observation may still be required.

[0030] Based on this, when the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the test water is sprayed onto the surface of the workpiece to be tested for water washing penetration testing. After confirming that the water pressure and water temperature meet the requirements, the operator can manually press the water pump start button to start the water pump and spray the test water onto the surface of the workpiece through the spray pipe. During the spraying process, the operator can adjust the spray angle and distance according to experience to ensure the cleaning effect.

[0031] In this embodiment, the real-time water pressure of the testing water to be sprayed onto the surface of the workpiece is collected in real time. When the real-time water pressure is not higher than the pre-spraying pressure, the real-time water temperature of the testing water is collected in real time. When the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the testing water is sprayed onto the surface of the workpiece to be tested for water washing and penetration testing. This allows the invention to obtain the water temperature and pressure of the testing water in real time and control the start and stop of the water pump in real time based on the measured water temperature and pressure. This ensures that the washing agent penetrates evenly into the gaps of the workpiece to be tested, ensuring the sensitivity of the penetration testing system during penetration testing and thus ensuring the testing effect.

[0032] In one embodiment, after the step of collecting the real-time water temperature of the detection water when the real-time water pressure is not higher than the pre-spraying pressure, the method further includes: When the real-time water temperature is greater than the maximum temperature value of the pre-spraying temperature range, the water pump is turned off and the external cooling device is controlled to cool the test water. When the real-time water temperature is within the pre-spraying temperature range, the steps of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested and performing water washing penetration test are executed.

[0033] In this embodiment, the automation and reliability of the water-washing penetrant testing method are improved by introducing an active temperature regulation mechanism. After real-time acquisition of the water pressure of the testing water to be sprayed onto the surface of the workpiece and confirming that it is not higher than the pre-spraying pressure, the system also acquires the real-time water temperature. If the real-time water temperature is determined to be higher than the maximum temperature value within the pre-spraying temperature range, the system immediately shuts off the water pump and stops spraying the testing water to avoid operating at unsuitable temperatures. Simultaneously, the system activates an external cooling device to actively lower the temperature of the testing water. During the cooling process, the system continuously monitors the real-time water temperature. Once the real-time water temperature returns to the pre-spraying temperature range, the system automatically restarts the water pump and continues spraying the testing water onto the surface of the workpiece, thus resuming the water-washing penetrant testing operation. This invention ensures that the testing water is always at the optimal temperature, avoiding detection interruptions or result deviations caused by excessively high water temperatures, and achieving intelligent and continuous testing processes.

[0034] In one embodiment, after the step of collecting the real-time water temperature of the detection water when the real-time water pressure is not higher than the pre-spraying pressure, the method further includes: When the real-time water temperature is greater than the maximum temperature value of the pre-spraying temperature range, the water pump is turned off and the external cooling device is controlled to cool the test water. When the real-time water temperature is within the pre-spraying temperature range, the step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested is performed, so as to remove excess penetrant or pre-treat the surface of the workpiece to be tested before performing the test operation.

[0035] In this embodiment, a water pressure sensor is explicitly used to collect the real-time water pressure of the test water sprayed onto the surface of the workpiece, thus providing an accurate and reliable pressure data source for the entire testing process. The water pressure sensor is strategically positioned along the flow path of the test water, such as at the water pump outlet or the beginning of the spray pipe, to directly sense and quantify the instantaneous pressure of the test water. The water pressure sensor continuously converts the measured physical pressure signal into an electrical signal that can be recognized by the electronic system and transmits it to the control unit in real time. The control unit compares this real-time water pressure data with the pre-spray pressure value. Only when the critical condition that the real-time water pressure is not higher than the pre-spray pressure is met will the system further initiate the collection of the real-time water temperature of the test water, and finally, when the water temperature also meets the pre-spray range, start the water pump to perform the water washing penetration testing operation. This invention ensures the accuracy of the water pressure data, avoids misjudgments or poor testing results caused by inaccurate water pressure measurement, and thus improves the accuracy and reliability of the entire water washing type penetration testing method.

[0036] In one embodiment, the step of real-time acquisition of the water pressure of the test water to be sprayed onto the surface of the workpiece to be tested includes: A water pressure sensor is used to collect the real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested.

[0037] In one embodiment, the step of collecting the real-time water temperature of the test water when the real-time water pressure is not higher than the pre-spraying pressure includes: When the real-time water pressure is not higher than the pre-spray pressure, a temperature sensor is used to collect the real-time water temperature of the test water.

[0038] In this embodiment, the real-time water pressure of the water to be sprayed for testing is monitored in real time using a water pressure sensor. To further ensure the applicability of the testing water, when the real-time water pressure meets the condition of not exceeding the pre-spraying pressure, this application further clarifies the method for acquiring real-time water temperature. A temperature sensor is used to accurately acquire the real-time water temperature of the testing water. This ensures that accurate temperature data can be obtained under the premise of suitable water pressure for testing. Based on this accurate real-time water temperature data, the system can determine whether the testing water is within the pre-spraying temperature range, thereby deciding whether to start the water pump for water washing and penetration testing, or to initiate cooling measures if the temperature is too high. By introducing a temperature sensor for real-time water temperature acquisition, the entire testing process is precisely controlled in terms of the two key parameters of water pressure and water temperature, avoiding poor testing results or equipment malfunctions due to inaccurate water temperature, thereby improving the reliability and accuracy of the testing.

[0039] In one embodiment, the step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested and performing a water-washing penetration test when the real-time water temperature is within the pre-spraying temperature range includes: When the real-time water temperature is within the pre-spraying temperature range, the operator can verify their fingerprint using the fingerprint recognition module installed on the water pump. After fingerprint authentication is completed, the water pump is turned on and the detection water is sprayed onto the surface of the workpiece to be tested to perform water washing penetration testing.

[0040] In this embodiment, in the aforementioned water-washing penetrant testing method, when the real-time water pressure is not higher than the pre-spraying pressure and the real-time water temperature is within the pre-spraying temperature range, the system will not immediately start the water pump to perform the water-washing penetrant testing operation. This application further requires the operator to verify their identity using a fingerprint recognition module installed on the water pump. Only after the fingerprint recognition module successfully identifies and authenticates the operator's identity will the control system issue a command to start the water pump, thereby spraying the testing water onto the surface of the workpiece to be tested and performing the water-washing penetrant testing operation. This embodiment combines environmental condition detection with operator identity verification, forming a multi-layered security startup process. By introducing biometric technology, unauthorized operations are effectively prevented, improving the security, standardization, and traceability of the entire testing process, and ensuring the legality and reliability of the testing operation.

[0041] In one embodiment, before the step of real-time acquisition of the real-time water pressure of the test water to be sprayed onto the surface of the workpiece to be tested, the method further includes: The water used for testing is pre-stored in a water tank, and a temperature sensor is installed in the water tank.

[0042] In this embodiment, before the step of real-time acquisition of the water pressure of the test water to be sprayed onto the surface of the workpiece, the test water is first pretreated and its initial state is monitored. By pre-storing the test water in a water tank, the water washing penetration testing device can ensure a sufficient and stable supply of test water throughout the entire testing process, avoiding the problem of operation interruption due to temporary water intake or water supply problems. At the same time, a temperature sensor is installed in the water tank, enabling the system to accurately obtain the overall temperature information of the test water before it enters the pump pipeline for real-time water temperature acquisition. In this embodiment, using a temperature sensor to acquire the real-time temperature of the test water in the water tank allows the system to perform necessary temperature adjustments in advance based on the comparison between its initial temperature and the pre-spraying temperature range before the test water is pumped (for example, starting heating if the temperature is too low, and starting cooling if the temperature is too high), thereby ensuring that the temperature of the test water is at or close to the ideal working range when it enters the subsequent real-time water pressure and water temperature detection stages. This invention effectively solves the problems of the continuity of water supply and the accuracy of initial temperature detection, laying the foundation for subsequent precise control and efficient detection.

[0043] To further clarify the technical solution of this invention, in specific implementation, when a water washing penetration test is required on the workpiece to be tested, the water pump can be controlled to start and stop based on the real-time water temperature and pressure changes of the test water, achieving a linkage function. A water pressure sensor detects water pressure changes; when the water pressure exceeds 0.345 MPa, the water pump stops operating; when the water temperature is between 10℃ and 40℃, the water pump operates normally; when it exceeds this range, the water pump stops operating and the cooling or heating function is activated. The specific implementation process is as follows: When the water temperature is below 10℃, the water pump stops working and the heating mode is turned on. The indicator light will illuminate. At this time, 220V AC power can be input through the power input interface (with a 10A fuse). The socket will then be powered on, and a 220V heater can be connected through the socket.

[0044] The heater heats the water and connects to the temperature controller via a temperature sensor interface, transmitting the water temperature signal to the temperature controller to control the water temperature.

[0045] Once the water temperature reaches the pre-spraying temperature, the water pump starts working.

[0046] When the water temperature exceeds 40℃, the water pump stops working and the cooling mode is activated, indicator light 12 illuminates. At this time, 220V AC power can be input through the power input interface (with a 10A fuse), and the socket will be powered on, allowing connection of external 220V cooling equipment. The chiller cools the water and connects to the thermostat via a temperature sensor interface, transmitting the water temperature signal to the thermostat for temperature control. Once the water temperature reaches the pre-spraying temperature, the water pump starts working.

[0047] It can automatically switch between main power and backup power. The built-in power switching module allows switching between a 12V lithium battery and a 12V DC power adapter (12V DC input interface). This allows for switching to 12V DC power supply when the battery is depleted.

[0048] By incorporating fingerprint and NFC modules, the device is protected from unauthorized operation, thus enhancing its anti-counterfeiting capabilities to some extent.

[0049] Battery charging function. The battery can be charged via a charger connection interface. This allows operators to visually view the battery level and voltage on the battery voltage and power display.

[0050] The system uses an ESP32 microcontroller to collect temperature and water pressure data via temperature and water pressure sensors. This data is then uploaded to a mobile phone or company server via Bluetooth or Wi-Fi for remote monitoring. The main unit's water inlet is connected to a water tank hose via a nipple connector, and the hose is connected to a filter. The filter extends into the water tank, thus drawing water.

[0051] It mainly consists of a movable base (with casters at the bottom) and a pull-out water tank, with a built-in heating coil in the base. It can be connected to the main equipment socket via an adapter. The water tank can be detached from the base for easy water connection. A temperature sensor is embedded in the water inlet cover on the top of the water tank. An agitator is located inside the tank, and an agitator switch is located on the top. The agitator motor, connecting rod, and propeller ensure even heating of the water, preventing insufficient water circulation, excessively high temperatures near the heater, and uneven temperatures further away, thus ensuring uniform overall water temperature. Cooling functionality can be achieved by connecting to an industrial chiller or by adding a semiconductor cooling coil inside the water tank.

[0052] After the main unit dispenses water, it connects to a hose, which in turn connects to an automatic pump start / stop switch. The switch then connects to an extension rod, which in turn connects to the nozzles. Different nozzles can be selected to achieve different spraying effects depending on the scenario.

[0053] Based on the same technical concept, in a second aspect, the present invention also proposes a water washing permeation detection device for performing the water washing type permeation detection method of the first aspect. The water washing permeation detection device includes: The outer casing 10 forms an installation space within it; A water storage tank 100 is installed within an installation space. The water storage tank 100 contains a water storage space 110 for storing test water. A drain hole is formed on the side wall of the water storage space 110. A water pressure sensor 200 for detecting the test water pumped from the drain hole and a temperature sensor 300 for detecting the temperature of the test water are installed near the drain hole in the water storage space 110. A water pump 400 is installed inside the housing 10. The water inlet of the water pump 400 is connected to the water outlet, and the water outlet of the water pump 400 is connected to a spray pipe 500. When the real-time water pressure of the test water is at the pre-spray pressure and the real-time water temperature is within the pre-spray temperature range, the water pump 400 delivers the test water in the water storage space 110 to the spray nozzle of the spray pipe 500 and sprays it onto the surface of the workpiece to be tested, so as to remove excess penetrant or pre-treat the surface of the workpiece before the test operation.

[0054] In this embodiment, a closed-loop control system is formed by integrating a water storage tank 100, a water pressure sensor 200, a temperature sensor 300, and a water pump 400 to ensure that the water washing penetration test is performed under the pre-sprayed water pressure and temperature conditions. First, the test water is stored in the water storage space 110 of the water storage tank 100. When a test is required, the water pump 400 draws the test water from the drain hole of the water storage tank 100. During the process of the water pump 400 drawing the test water, the water pressure sensor 200, installed near the drain hole, monitors the real-time water pressure of the pumped test water, while the temperature sensor 300 monitors the real-time water temperature of the test water. Only when the real-time water pressure is not higher than the pre-spray pressure and the real-time water temperature is within the pre-spray temperature range will the control unit instruct the water pump 400 to start. Once the water pump 400 starts, the test water enters the spray pipe 500 through the outlet of the water pump 400 and is finally sprayed from the spray nozzle of the spray pipe 500 onto the surface of the workpiece to be tested, thereby performing the water washing penetration test. If the water pressure or temperature does not meet the pre-spraying conditions, the water pump 400 will not start or will be shut down until the conditions are met. Integrating components such as the water pressure sensor 200 and temperature sensor 300 onto the water storage tank 100 allows for stable and accurate execution of the water-washing type permeation detection method, avoiding deviations in detection results caused by unsuitable water pressure or temperature, and improving the reliability and efficiency of the detection. By tightly integrating the sensors with the water pump 400, real-time monitoring and precise control of the water usage status are achieved, effectively improving the stability of the device.

[0055] In one embodiment, a heating element 600 and a stirring element 700 for stirring the test water are installed in the water storage tank 100. The heating element 600 can heat the test water when the real-time temperature is lower than the lowest temperature value of the pre-spraying temperature range.

[0056] In this embodiment, by placing a heating element 600 and a stirring element 700 within the water storage tank 100, and combining this with temperature monitoring and control logic, precise control of the test water temperature is achieved. When the water washing penetration testing device is activated or during the testing process, the temperature sensor 300 continuously monitors the real-time temperature of the test water within the water storage tank 100. Once the real-time temperature falls below the minimum temperature value of the pre-spraying temperature range, the control unit (e.g., the ESP32 microcontroller mentioned earlier) issues a command to simultaneously activate the heating element 600 and the stirring element 700. The heating element 600 begins heating the test water, while the stirring element 700 operates synchronously, ensuring that the heat generated can be rapidly and evenly diffused throughout the entire water storage space 110, preventing localized excessively high or low water temperatures and thus ensuring overall water temperature consistency. When the real-time temperature of the test water is heated to within the pre-spraying temperature range, the control unit promptly shuts off the heating element 600 and the stirring element 700, stopping the heating and stirring operations. This mechanism, in conjunction with existing technologies that use a cooling component 800 to lower the temperature when the real-time water temperature exceeds the maximum value of the pre-spraying temperature range, forms a complete temperature regulation system. This ensures that the temperature of the testing water is always maintained within the optimal operating range. In this way, even in low ambient temperatures, the testing water can be quickly heated to a suitable temperature, enabling normal water washing and penetration testing operations.

[0057] In one embodiment, a cooling unit 800 is also installed in the water storage space 110. The cooling unit 800 can cool the test water when the water temperature is higher than the highest temperature value of the pre-spraying temperature range, and turn on the water pump 400 when the water temperature is within the pre-spraying temperature range, and pump the test water in the water storage space 110 to the spray nozzle of the spray pipe 500 to spray onto the surface of the workpiece to be tested for water washing penetration test.

[0058] In this embodiment, a cooling component 800 is installed in the water storage space 110. This cooling component 800 works in conjunction with the temperature sensor 300 and the water pump 400. When the temperature sensor 300 detects that the temperature of the test water in the water storage space 110 is higher than the highest temperature value of the pre-spraying temperature range, the control system activates the cooling component 800 to cool the test water. The cooling component 800 continues to operate until the temperature of the test water decreases and stabilizes within the pre-spraying temperature range. Once the water temperature reaches a suitable range, the control system issues a command to turn on the water pump 400, spraying the test water in the water storage space 110 onto the surface of the workpiece to be tested through the spray pipe 500, thereby resuming or starting the water washing penetration testing operation. This ensures that the water washing penetration testing operation is always carried out under optimal water temperature conditions, avoiding problems such as operation interruption or poor testing results due to excessively high water temperature. In conjunction with the heating component 600, the temperature of the test water can be precisely controlled within the pre-spraying range. Whether it is too cold or too hot, effective temperature regulation can be performed, thereby ensuring the stability and reliability of the testing process.

[0059] In one embodiment, a worker identification module 900 is also installed on the outer casing 10, and the worker identification module 900 is communicatively connected to the water pump 400.

[0060] In this embodiment, by installing a worker identification module 900 on the water storage tank 100 and connecting it to the water pump 400, the entire water washing penetration testing process, while possessing precise water pressure and temperature control and automatic cooling / heating functions, further enhances operational safety and standardization. Before conducting the water washing penetration testing, the operator must first authenticate their identity through the worker identification module 900. After receiving the operator's identity information, the worker identification module 900 processes and compares it. If the authentication is successful, the worker identification module 900 sends a start command to the water pump 400 via the communication connection. The water pump 400 will only start after receiving a valid start command and, according to the pre-spraying conditions (e.g., real-time water pressure not exceeding the pre-spraying pressure and real-time water temperature within the pre-spraying temperature range), delivers the testing water from the water storage space 110 to the spray pipe 500, ultimately spraying it onto the surface of the workpiece to be tested for the water washing penetration testing.

[0061] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the protection scope of the present invention.

Claims

1. A water-washing type penetrant testing method, characterized in that, Includes the following steps: Real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested is collected; When the real-time water pressure is not higher than the pre-spraying pressure, the real-time water temperature of the test water is collected in real time; When the real-time water temperature is within the pre-spraying temperature range, the water pump is turned on and the test water is sprayed onto the surface of the workpiece to be tested, so as to perform the test operation after removing excess penetrant or pre-treating the surface of the workpiece to be tested.

2. The water-washing type penetrant testing method as described in claim 1, characterized in that, After the step of collecting the real-time water temperature of the test water when the real-time water pressure is not higher than the pre-spray pressure, the method further includes: When the real-time water temperature is greater than the maximum temperature value of the pre-spraying temperature range, the water pump is turned off and the external cooling device is controlled to cool the test water. When the real-time water temperature is within the pre-spraying temperature range, the step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested is performed, so as to remove excess penetrant or pre-treat the surface of the workpiece to be tested before performing the test operation.

3. The water-washing type penetrant testing method as described in claim 2, characterized in that, The step of real-time acquisition of the water pressure of the test water to be sprayed on the surface of the workpiece to be tested includes: A water pressure sensor is used to collect the real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested.

4. The water-washing type penetrant testing method as described in claim 3, characterized in that, The step of collecting the real-time water temperature of the test water when the real-time water pressure is not higher than the pre-spraying pressure includes: When the real-time water pressure is not higher than the pre-spray pressure, a temperature sensor is used to collect the real-time water temperature of the test water.

5. The water-washing type penetrant testing method as described in claim 4, characterized in that, The step of turning on the water pump and spraying the test water onto the surface of the workpiece to be tested and performing water washing penetration testing when the real-time water temperature is within the pre-spraying temperature range includes: When the real-time water temperature is within the pre-spraying temperature range, the operator can verify their fingerprint using the fingerprint recognition module installed on the water pump. After fingerprint authentication is completed, the water pump is turned on and the detection water is sprayed onto the surface of the workpiece to be tested to perform water washing penetration testing.

6. The water-washing type penetrant testing method as described in claim 5, characterized in that, Before the step of real-time acquisition of the real-time water pressure of the test water to be sprayed on the surface of the workpiece to be tested, the method further includes: The water used for testing is pre-stored in a water tank, and a temperature sensor is installed in the water tank.

7. A water washing permeation detection device, characterized in that, For performing the water-washing type permeation testing method as described in any one of claims 1 to 6, the water-washing permeation testing apparatus comprises: An outer casing, within which an installation space is formed; A water storage tank, installed within the installation space, contains a water storage space for storing testing water. A drain hole is formed on the side wall of the water storage space. A water pressure sensor for detecting the testing water pumped from the drain hole and a temperature sensor for detecting the temperature of the testing water are installed near the drain hole in the water storage space. A water pump is installed inside the housing. The water pump's inlet is connected to the outlet, and the water pump's outlet is connected to a spray pipe. When the real-time water pressure of the test water is within the pre-spraying pressure and the real-time water temperature is within the pre-spraying temperature range, the water pump delivers the test water from the water storage space to the spray nozzles of the spray pipe and sprays it onto the surface of the workpiece to be tested, so as to perform the test operation after removing excess penetrant or pre-treating the surface of the workpiece to be tested.

8. The water washing permeation detection device as described in claim 7, characterized in that, The water storage tank is equipped with a heating element and a stirring element for stirring the test water. The heating element can heat the test water when the real-time temperature is lower than the lowest temperature value of the pre-spraying temperature range.

9. The water washing permeation detection device as described in claim 8, characterized in that, The water storage space is also equipped with a cooling unit. The cooling unit can cool the test water when the water temperature is higher than the highest temperature value of the pre-spraying temperature range, and turn on the water pump when the water temperature is within the pre-spraying temperature range to pump the test water in the water storage space to the spray nozzle through the spray pipe and spray it onto the surface of the workpiece to be tested for water washing penetration testing.

10. The water washing permeation detection device as described in claim 9, characterized in that, The outer casing is also equipped with a worker identification module, which is communicatively connected to the water pump.

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