An antioxidant property testing system and method for a pipe

Abstract

An embodiment of the present invention relates to the technical field of pipe testing, and discloses an antioxidant property testing system for pipes, which includes an antioxidant property testing device; the antioxidant property testing device includes a first box body, a second box body, a water pump device and a testing component; the water pump device is arranged in the first box body, the testing component is arranged in the second box body, and the first box body and the second box body are separately arranged; the testing component includes a liquid storage tank, a heat preservation unit and a sample tube testing unit, the heat preservation unit is used for heat-preserving the sample tube testing unit, the sample tube testing unit includes a connecting pipeline and testing jigs arranged at each testing point on the connecting pipeline, and the testing jigs are used for clamping the corresponding sample testing tubes and making the sample testing tubes communicate with the connecting pipeline. The testing system in the embodiment of the present invention adopts a modular combined box-type shock absorption design, and has a simple overall structure, high integration degree and small single floor area. The split design can effectively avoid the influence of motor vibration on the life of pipes during the testing process.

Description

Technical Field

[0001] The invention relates to the technical field of pipe testing, and in particular to a pipe oxidation resistance testing system and method. Background Art

[0002] Currently, metal pipes and polyolefin pipes are widely used in drinking water delivery systems, but their antioxidant performance in chlorinated water environments is a key factor affecting their service life. In order to evaluate the antioxidant performance of metal pipes and polyolefin pipes, existing test systems usually simulate actual use conditions (such as chlorinated water environment, pressure, flow rate, etc.) and predict the life of the pipes through accelerated aging experiments. However, existing test systems have many shortcomings that limit their efficiency and accuracy.

[0003] Most existing systems use a one-way large reflux design, which has a complex system structure and can only test a small number of samples at a time, resulting in low test efficiency. Due to the complexity of the test process, data collection and analysis take a long time, resulting in a longer overall evaluation cycle. Test conditions usually simulate the high pressure and high flow rate in actual use, which places high demands on the adaptability of online test instruments (such as sensors and probes). Under harsh conditions, the instrument probe is easily damaged or data collection is inaccurate, affecting the reliability of the test results.

[0004] The existing system automatic control system has poor coordination, frequent failures, many operation steps, some of which are manually operated, and poor consistency in the test process, which in turn affects the accuracy of the life extrapolation model in predicting the life of the sample, and the operation process consumes a lot of energy, which increases the test cost. Therefore, designing a solution that can improve the stability of the test has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of the above-mentioned defects, an embodiment of the present invention discloses a pipe oxidation resistance testing system, which can reduce the interference of the testing environment and improve the accuracy of pipe life prediction.

[0006] The first aspect of the embodiment of the present invention discloses a system for testing the oxidation resistance of a pipe.

[0007] The antioxidant test system comprises an antioxidant test device; the antioxidant test device comprises a first box, a second box, a water pump device and a test assembly; the water pump device is arranged in the first box, the test assembly is arranged in the second box, the first box and the second box are arranged separately, and the first box and the second box are both provided with a communication hole;

[0008] The test component includes a liquid storage tank, a heat preservation unit, and a sample tube test unit. The heat preservation unit is used to keep the sample tube test unit warm. The sample tube test unit includes a connecting pipeline and test clamps arranged at each test point on the connecting pipeline. The test clamps are used to clamp the corresponding sample test tubes and make the sample test tubes communicate with the connecting pipeline. The water pumping end of the water pump device is connected to the water outlet of the liquid storage tank through a water inlet pipe to pump the liquid in the liquid storage tank to the water outlet end of the water pump device, and make the liquid sequentially pass through the water outlet pipe and the connecting pipeline and connect to the water return end of the liquid storage tank to form a circulation loop. The liquid storage tank further includes a chemical addition port for adding medicine.

[0009] As an optional implementation manner, in the first aspect of the embodiments of the present invention, a shock absorption layer is provided between the first box body and the second box body;

[0010] and / or, the water pump device is installed on the first box body through a shock absorption mechanism; the shock absorption mechanism is a rubber shock pad or an air spring airbag.

[0011] As an optional implementation manner, in the first aspect of the embodiments of the present invention, the shock absorption layer is a polyurethane shock absorption layer, a rubber shock absorption layer, or an intelligent shock absorption layer, and the thickness of the polyurethane shock absorption layer is any value from 20 mm to 60 mm;

[0012] and / or, the liquid storage tank is a stainless steel inner-lined polytetrafluoroethylene pressure tank, and a heat preservation layer is provided on the outer surface of the liquid storage tank; heat insulation layers are provided inside the first box body and the second box body.

[0013] As an optional implementation manner, in the first aspect of the embodiments of the present invention, the heat preservation unit includes a heating component, an outer heat preservation layer, and a support frame. The outer heat preservation layer is arranged on the outer side of the stainless steel support frame. The support frame has a test cavity for accommodating the sample tube test unit. The heating component is arranged on the inner surface of the support frame, and the number of the heating components is multiple;

[0014] The support frame is a stainless steel box-type support frame, and a drain port is provided at the bottom surface of the stainless steel support frame.

[0015] As an alternative embodiment, in the first aspect of the embodiments of the present invention, the heating assembly includes a heat insulation layer, a heat conduction pipeline, and a heat conduction layer. The heat conduction layer includes a first heat conduction layer and a second heat conduction layer that are stacked and installed in sequence. One side surface of the heat insulation layer is fixed to the inner surface of the support frame, and a groove is provided on the other side surface of the heat insulation layer. The heat conduction pipeline is nested in the groove. The heating wire is arranged in the heat conduction pipeline, and the heating wire is electrically connected to the corresponding control device. The control device controls the working state of the heating wire through a PID algorithm. The heat conduction layer covers the heat insulation layer and completely covers the heat conduction pipeline;

[0016] The first heat conduction layer is a heat-conducting foamed ceramic plate, and the second heat conduction layer is a heat-conducting thin-layer glazed ceramic plate; the height of the heat-conducting thin-layer glazed ceramic plate in the vertical direction decreases sequentially from the middle to both sides, and the heat conduction pipeline is an S-shaped heat conduction pipeline.

[0017] As an alternative embodiment, in the first aspect of the embodiments of the present invention, the number of the antioxidant testing devices is multiple. The multiple antioxidant testing devices are stacked up and down to form an integrated testing system; a heat insulation layer is also provided between the multiple antioxidant testing devices or a heat insulation mechanism is provided on the inner side surface of the second box body;

[0018] The test fixture includes a connecting flange, and the connecting flange is used for clamping the sample tube. The flange gasket at the connecting flange is made of polytetrafluoroethylene.

[0019] As an alternative embodiment, in the first aspect of the embodiments of the present invention, the testing system further includes a control device. A first regulating valve electrically connected to the control device is provided at the water inlet pipe, and a second regulating valve electrically connected to the control device is provided at the water outlet pipe; a third regulating valve electrically connected to the control device is provided at the return water end of the liquid storage tank;

[0020] The liquid storage tank is provided with a detection end. A sleeve is installed at the detection end, and a sensor assembly communicatively connected to the control device is provided at the bottom of the sleeve. The sensor assembly is used to obtain the sensing information of the liquid to be detected pumped from the liquid storage tank through a micro pump. The sensor assembly includes a first temperature sensor, a redox sensor, and a chlorine water concentration sensor; the liquid storage tank is further provided with a first pressure sensor and a third heater electrically connected to the control device. The liquid heater is installed at the liquid storage tank through a heating end;

[0021] A second pressure sensor and a flow sensor electrically connected to the control device are provided at the connecting pipeline. The pressure signal and the flow signal in the connecting pipeline are monitored through the second pressure sensor and the flow sensor.

[0022] As an alternative implementation, in the first aspect of the embodiments of the present invention, the water pump device includes a frequency converter and a water pump motor. The frequency converter is electrically connected to the control device, and the frequency converter is used to control the working state of the water pump motor;

[0023] The control device further includes a communication module, which transmits the acquired on-site data to the background server through the communication module, and transmits the on-site data to the corresponding intelligent terminal through the background server.

[0024] The second aspect of the embodiments of the present invention discloses a method for testing the antioxidant property of a pipe, including:

[0025] Receiving the target temperature control condition set by the user, parsing the data of the target temperature control condition to generate the initial temperature control parameters of each heating unit in the heating system, and controlling the working state of each component in the heating system according to the initial temperature control parameters;

[0026] Obtaining the temperature sensing information at the corresponding heating unit in the test system, and matching the temperature sensing information with the target temperature control condition. If the target temperature control condition is reached, start the water pump system to pump the liquid in the chlorine water supply system to the corresponding connecting pipeline and sample test tube to form a circulation loop;

[0027] Determining whether the target operating state is reached according to the received pressure signal and flow rate signal at the connecting pipeline. When the pressure signal and flow rate signal meet the set requirements, determine to enter the test stage and record the start time;

[0028] During the test stage, obtain the test temperature signal detected by the temperature sensor arranged at the connecting pipeline, and adjust the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transportation parameters.

[0029] As an alternative implementation, in the second aspect of the embodiments of the present invention, the pipeline transportation parameters include the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube;

[0030] The test method further includes:

[0031] Obtaining the first environmental parameter in the first box body and the second environmental parameter in the second box body;

[0032] The adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transportation parameters includes:

[0033] Determine the heat loss of each conveying section according to the first environmental parameter in the first box body, the second environmental parameter in the second box body, the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube;

[0034] Determine the output temperature parameter at the liquid storage tank according to the test temperature signal and the heat loss of each conveying section, and generate a corresponding temperature adjustment parameter according to the output temperature parameter and the set output temperature to adjust the working state of the heater at the liquid storage tank;

[0035] And / or, the test method further includes:

[0036] Regularly record the target detection parameters according to the set method, where the target detection parameters include temperature information, redox potential information, and chlorine water concentration information;

[0037] And / or, the test method further includes:

[0038] Obtain the temperature monitoring information detected by the temperature sensing component at the heat preservation unit, and calculate the temperature difference between the sensor position and the object position according to the heat transfer model;

[0039] Generate dynamic adjustment parameters for each heating area according to the temperature monitoring information, temperature difference information, and set test temperature, and adjust the power parameters of the heating components in each heating area according to the dynamic adjustment parameters.

[0040] A third aspect of the embodiments of the present invention discloses an electronic device, including: a memory storing executable program code; a processor coupled to the memory; the processor calls the executable program code stored in the memory to execute the antioxidant test method for pipes disclosed in the first aspect of the embodiments of the present invention.

[0041] A fourth aspect of the embodiments of the present invention discloses a computer-readable storage medium, which stores a computer program, wherein the computer program enables a computer to execute the antioxidant test method for pipes disclosed in the first aspect of the embodiments of the present invention.

[0042] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0043] The test system in the embodiments of the present invention adopts a modular combined box-type shock absorption design, and the overall structure is simple, with high integration and small single floor area. The split design can effectively avoid the influence of motor vibration on the life of the pipes during the test. Moreover, the embodiments of the present invention adopt a modular cyclic test system, with a large number of samples under multiple parameters in a single test and high test process efficiency, greatly shortening the evaluation cycle. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 is a schematic structural diagram of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0046] Figure 2 is another schematic structural diagram of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0047] Figure 3 is still another schematic structural diagram of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0048] Figure 4 is a front view of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0049] Figure 5 is another front view of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0050] Figure 6 is a right view of the first box body disclosed in an embodiment of the present invention;

[0051] Figure 7 is a right view of an antioxidant property testing system for pipes disclosed in an embodiment of the present invention;

[0052] Figure 8 is a schematic structural diagram of a liquid storage tank disclosed in an embodiment of the present invention;

[0053] Figure 9 is a schematic structural diagram of a heat preservation unit disclosed in an embodiment of the present invention;

[0054] Figure 10 is another schematic structural diagram of a heat preservation unit disclosed in an embodiment of the present invention;

[0055] Figure 11 is a schematic structural diagram of a heating component disclosed in an embodiment of the present invention;

[0056] Figure 12 is another schematic structural diagram of a heating component disclosed in an embodiment of the present invention;

[0057] Figure 13 is a schematic flow diagram of a method for testing the antioxidant property of pipes provided in an embodiment of the present invention;

[0058] Figure 14It is a schematic flowchart of temperature regulation provided by an embodiment of the present invention;

[0059] Figure 15 It is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

[0060] Reference numerals: 1, antioxidant test system; 2, antioxidant test device; 3, first box body; 31, communication hole; 4, second box body; 5, water pump device; 51, first regulating valve; 52, second regulating valve; 6, test component; 61, liquid storage tank; 611, chlorine adding port; 612, heating end; 613, water quality detection end; 614, emptying port; 615, pressure detection end; 616, water outlet; 617, water inlet; 618, water return port; 62, heat preservation unit; 621, support frame; 622, heating component; 622a, heat insulation layer; 622b, heat conduction pipeline; 622c, first heat conduction layer; 622d, second heat conduction layer; 622e, heating wire; 623, temperature measurement component; 624, test channel; 63, sample tube test unit; 7, connecting pipeline; 71, third regulating valve; 8, shock absorption layer; 9, control device; 91, touch display module; 92, ORP display module; 93, chlorine measurement display module; 10, heat preservation layer; 11, exhaust fan. Detailed implementation manners

[0061] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0062] It should be noted that the terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusion. Exemplarily, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0063] The existing system has poor coordination in the automatic control system, frequent failures, many operation steps, and some manual operations. The consistency of the test process is relatively poor, which affects the accuracy of the life extrapolation model for predicting the life of the specimen. The energy consumption during operation is high, and the test cost increases. Based on this, the embodiments of the present invention disclose an antioxidant test system for pipes, which adopts a modular combined box-type shock absorption design, and the overall structure is simple, with high integration and small single floor area. The split design can effectively avoid the influence of motor vibration on the life of the pipes during the test process. Moreover, the embodiments of the present invention adopt a modular cyclic test system, with a large number of samples under multiple parameters in a single test and high test process efficiency, greatly shortening the evaluation cycle.

[0064] Embodiment 1:

[0065] Please refer to Figures 1-12 , which discloses an antioxidant test system 1 for pipes. The antioxidant test system 1 includes an antioxidant test device 2; the antioxidant test device 2 includes a first box body 3, a second box body 4, a water pump device 5, and a test component 6; the water pump device 5 is arranged in the first box body 3, the test component 6 is arranged in the second box body 4, the first box body 3 and the second box body 4 are separately arranged, and both the first box body 3 and the second box body 4 are provided with communication holes 31;

[0066] The test component 6 includes a liquid storage tank 61, a heat preservation unit 62, and a sample tube test unit 63. The heat preservation unit 62 is used to keep the sample tube test unit 63 warm. The sample tube test unit 63 includes a connecting pipeline 7 and test jigs arranged at each test point on the connecting pipeline 7. The test jigs are used to clamp the corresponding sample test tubes and make the sample test tubes communicate with the connecting pipeline 7; the water pumping end of the water pump device 5 is connected to the water outlet of the liquid storage tank 61 through a water inlet pipe to pump the liquid in the liquid storage tank 61 to the water outlet end of the water pump device 5, and make the liquid pass through the water outlet pipe and the connecting pipeline 7 in sequence and then connect to the return water end of the liquid storage tank 61 to form a circulation loop; the liquid storage tank 61 further includes a medicine adding port for adding medicine.

[0067] In the embodiments of the present invention, the water pump device 5 is connected to the liquid storage tank 61 and the connecting pipeline 7 through a hose, and the hose here can pass through the corresponding communication holes.

[0068] In the embodiment of the present invention, by separately arranging the first box body 3 and the second box body 4, the water pump device 5 and the test component 6 are respectively arranged in different box bodies, which is convenient for independent maintenance, repair and management of different functional modules. At the same time, the separate arrangement can reduce the interference between each other. For example, the vibration and noise generated when the water pump device 5 works have an impact on the test component 6, improving the accuracy and stability of the test. Specifically, an exhaust fan 11 is also arranged in the first box body 3 for adjusting the temperature in the first box body 3. A louver or an acrylic door is also arranged on the side of the first box body 3.

[0069] As Figure 3 shown, when carrying out the specific design, the bottom of the second box body 4 can also be recessed inward to form a corresponding support frame, and the formed support frame can realize the support of the heat preservation mechanism. The above design not only realizes the support of the heat preservation mechanism, but also can reduce the space of the second box body, making the temperature in its internal space more controllable; and can further reduce the length of the liquid storage tank emptying pipeline. As Figure 3 shown, there is a certain inclination angle on the upper platform of the support frame, Figure 3 and the dotted line in

[0070] is the horizontal line. Through the setting of the above inclination angle, when the heat preservation unit is arranged on the support platform, there is also an inclination angle. Furthermore, when the water pipe bursts, the water will flow to the corresponding drain port according to the inclination angle, so as to eliminate the adverse impact on the heating wire in the heat preservation unit.

[0071] In the embodiment of the present invention, the water pumping end of the water pump device 5 is connected to the water outlet of the liquid storage tank 61 through a water inlet pipe, and the liquid in the liquid storage tank 61 is pumped to the water outlet end of the water pump device 5, and then is connected to the return water end of the liquid storage tank 61 through a water outlet pipe and a connecting pipeline 7 to form a circulating loop. This design can ensure that the test liquid continuously circulates in the system, so that the sample test tube is always in a state where the liquid flows through, simulating the situation of the pipe material contacting the liquid in actual use, so as to more realistically test the antioxidant performance of the pipe material. And the circulating flow can make the composition and temperature of the liquid more uniform, further improving the reliability of the test results.

[0072] In the embodiment of the present invention, the liquid storage tank 61 is provided with a chemical addition port for adding chemicals, which facilitates adding different chemicals into the liquid storage tank 61 during the test to simulate the influence of different working environments and medium components on the antioxidant performance of the pipe material, increasing the flexibility and adaptability of the test system, and enabling the testing of the antioxidant capacity of the pipe material under a variety of different conditions. The heat preservation unit 62 is used to heat-insulate the sample tube test unit 63, capable of maintaining the stability of the ambient temperature around the sample test tube. Since temperature has a great influence on the antioxidant performance of the pipe material, a stable temperature environment can make the test results more comparable and accurate, excluding the interference of temperature changes on the test results. The sample tube test unit 63 includes a connecting pipeline 7 and test clamps arranged at each test point on the connecting pipeline 7. The test clamps are used to clamp the corresponding sample test tubes and connect the sample test tubes to the connecting pipeline 7. This structural design can test multiple sample test tubes simultaneously, improving the test efficiency, and through the fixation of the test clamps, ensuring the reliable connection between the sample test tubes and the connecting pipeline 7, and ensuring that the liquid can flow smoothly through the sample test tubes for antioxidant testing.

[0073] More preferably, a shock-absorbing layer 8 is provided between the first box body 3 and the second box body 4;

[0074] And / or, the water pump device 5 is installed on the first box body 3 through a shock-absorbing mechanism; the shock-absorbing mechanism is a rubber shock-absorbing pad or an air spring airbag.

[0075] The shock-absorbing layer 8 in the embodiment of the present invention can effectively block the transmission of vibrations generated by the water pump device 5 and the like in the first box body 3 to the second box body 4. Since the test assembly 6 is provided in the second box body 4, especially components such as the sample tube test unit 63 that are sensitive to the test environment, vibrations may affect the accuracy of the test, such as causing the test clamps to loosen and the liquid flow state to be unstable. By providing the shock-absorbing layer 8, this vibration interference is reduced, making the test environment in the second box body 4 more stable, thus ensuring the reliability and precision of the test results. This solution helps to protect the structural integrity of the box bodies and the equipment inside the box bodies by reducing the vibration transmission between the two box bodies. Long-term vibrations may cause problems such as loosening of the connection parts of the box bodies or equipment and component wear, while the shock-absorbing layer 8 can alleviate these adverse effects and extend the service life of the entire antioxidant test system 1.

[0076] Since the solution of the present application adopts a discrete method, each set of test devices corresponds to a water pump respectively during specific implementation. Therefore, when making a selection, a relatively small water pump can be selected to achieve the corresponding pressure supply. And because of the series connection method, the overall test environment has better consistency and it is easy to control the pressure fluctuation. Some of the existing parallel water supply methods require a water pump with a relatively large power. Although it can achieve centralized and unified water supply, due to the parallel connection method, if the pressure of one pipeline is adjusted, it is very easy to affect the pressure change of other pipelines, thus resulting in deviation in the overall measurement consistency. Moreover, a water pump with a relatively large power will generate greater vibration, which will add more uncertain factors to the test system, thus affecting the accuracy of the final result.

[0077] The rubber shock pad or air spring airbag in the embodiment of the present invention has good elasticity and buffering performance, and can effectively absorb the vibration energy generated during the operation of the water pump device 5. During the operation of the water pump, vibration will inevitably be generated due to mechanical movement. These shock absorption mechanisms can reduce the impact of vibration on the first box body 3, reduce the risk of fatigue damage of the box body caused by vibration, and improve the stability and reliability of the first box body 3. Through the buffering effect of the shock absorption mechanism, the vibration reaction force received by the water pump itself is reduced, which helps to protect the internal components of the water pump and reduce the probability of failures such as loosening and wear of components caused by vibration, thereby prolonging the service life of the water pump device 5 and reducing the maintenance cost of the equipment. Since the shock absorption mechanism reduces the influence of the vibration of the water pump device 5 on the entire system, the flow of the liquid in the test system is more stable and there will be no unnecessary fluctuations caused by the vibration of the water pump. This is very important for the antioxidant test of the pipe material in the sample tube test unit 63. A stable liquid flow state can more accurately simulate the actual use environment, thereby improving the accuracy and credibility of the test results.

[0078] The water flow path direction in this application is different from the conventional one. In conventional tests, it generally follows the straight water flow sequence of water tank, water pump, and test system. However, in this application, since the water pump is arranged in front of the water tank, it will cause differences in its overall structure compared with the existing solutions. And because the liquid storage tank 61 (i.e., the water tank) is arranged between the water pump and the test system, the weight of the liquid storage tank 61 itself can be used to absorb part of the vibration to reduce the impact of the water pump vibration on the test system. And the water pump is a component with a relatively high operating frequency and prone to failure in the system. In this solution, its connection method with the water tank and the split design make the maintenance work more convenient. When the water pump needs to be repaired or replaced, the maintenance personnel can directly operate at the connection part between the water pump and the water tank, without having to pass through the complex test system pipeline to access the water pump as in the traditional layout. This greatly shortens the maintenance time, reduces the maintenance difficulty, reduces the potential impact on the test system caused by the maintenance work, and improves the operation efficiency and reliability of the entire system.

[0079] More preferably, the shock-absorbing layer 8 is a polyurethane shock-absorbing layer 8, and the thickness of the polyurethane shock-absorbing layer 8 is any value from 20 mm to 60 mm;

[0080] And / or, the liquid storage tank 61 is a stainless steel inner-lined polytetrafluoroethylene pressure tank. A heat-insulating layer is provided on the outer surface of the liquid storage tank; heat-insulating layers are provided inside the first box body and the second box body; the heat-insulating layer among them is a super-high-performance heat-insulating layer, which can achieve good heat-insulating effect and anti-scalding function.

[0081] The polyurethane material in the embodiment of the present invention has good elasticity and damping characteristics, and can effectively absorb and disperse vibration energy. By arranging the polyurethane shock-absorbing layer 8 between the first box body 3 and the second box body 4, the vibration generated during the operation of the water pump device 5 can be significantly reduced from being transmitted to the second box body 4. This is crucial for protecting the test components 6 in the second box body 4, preventing the test fixture from loosening and the sample test tube from displacing due to vibration, ensuring the stable liquid flow during the test, and thus improving the accuracy of the test results of the antioxidant property of the pipe material.

[0082] In the embodiment of the present invention, the stainless-steel outer shell of the liquid storage tank 61 endows the liquid storage tank 61 with relatively high mechanical strength, enabling it to withstand a certain internal pressure and ensuring the structural stability of the liquid storage tank 61 during the operation of the system. At the same time, the polytetrafluoroethylene lining has extremely excellent chemical stability and can resist the erosion of almost all chemical substances. This enables the liquid storage tank 61 to not only store ordinary test liquids but also safely accommodate corrosive agents, meeting the diverse requirements for the antioxidant test of pipe materials and not affecting the service life of the liquid storage tank 61 and the accuracy of test results due to the corrosion of the liquid. As a pressure tank, the combination of its stainless-steel structure and polytetrafluoroethylene lining can adapt to the requirements of different pressure conditions in the test system. Whether it is the relatively high pressure generated when the water pump device 5 pumps water or the dynamic pressure change during the liquid circulation in the test system operation, the liquid storage tank 61 can operate stably, maintain the storage and supply of the internal liquid, provide a reliable liquid source for the test component 6, and ensure the normal operation of the test system.

[0083] More preferably, the heat preservation unit 62 includes a heating component 622, an outer heat preservation layer, and a support frame 621. The support frame 621 has a test channel 624 for accommodating the sample tube test unit. The heating component 622 is arranged on the inner surface of the support frame 621, and the number of the heating components 622 is multiple. A temperature measuring component 623 is also arranged in the test channel to detect the temperature through the temperature measuring component 623.

[0084] The heating component 622 includes a heat insulation layer 622a, a heat conduction pipe 622b, and a heat conduction layer. The heat conduction layer includes a first heat conduction layer 622c and a second heat conduction layer 622d which are stacked in sequence. One side surface of the heat insulation layer 622a is fixed on the inner surface of the support frame. A groove is arranged on the other side surface of the heat insulation layer 622a. The heat conduction pipe 622b is nested in the groove. The heating wire 622e is arranged in the heat conduction pipe 622b, and the heating wire 622e is electrically connected to the corresponding control device. The heat conduction layer covers the heat insulation layer 622a and completely covers the heat conduction pipe 622b. The depth of the groove here is any value from 5 to 10 mm.

[0085] The support frame 621 is a stainless-steel support frame, and an outer heat preservation layer is also arranged on the outer side surface of the stainless-steel support frame. A drain port is arranged at the bottom surface of the stainless-steel support frame.

[0086] The first heat-conducting layer 622c is a heat-conducting foamed ceramic plate, and the second heat-conducting layer 622d is a heat-conducting thin-layer glazed ceramic plate; the height of the heat-conducting thin-layer glazed ceramic plate decreases sequentially from the middle to both sides in the vertical direction, and the heat-conducting pipe 622b is an S-shaped heat-conducting pipe. The foamed ceramic plate here has uniformly ordered through holes, and the thickness of the foamed ceramic plate is any number between 5 and 12 mm. Through the above-mentioned uniformly ordered through holes, the temperature in the cavity can be made more uniform, avoiding local overheating and affecting the final test effect.

[0087] When implementing specifically, the external thermal insulation layer here can use polyurethane foam or aerogel thermal insulation material. The support frame 621 is a cuboid structure, and the formed temperature measurement cavity can be a through design or have only one opening; in the embodiment of the present invention, the single-opening method is adopted, which can achieve better thermal insulation. Specifically, the heating component 622 is arranged on the upper and lower inner surfaces of the support frame 621. The heat-conducting pipe 622b is nested in the groove of the heat-insulating layer 622a, and a heating wire 622e is arranged inside. The S-shaped heat-conducting pipe 622b design increases the length and surface area of the pipe, enabling the heat generated by the heating wire 622e to be more fully transferred to the heat-conducting layer, and then uniformly heating the test cavity 624. In the heat-conducting thin-layer glazed ceramic plate designed in the embodiment of the present invention, it is slightly convex in the middle and is buckled upside down on the surface of the heat-insulating layer 622a, thus reducing the influence of water on the heating wire. The heating component 622 here is a ceramic heating component.

[0088] Specifically, the multi-layer ceramic component of the embodiment of the present invention is integrally embedded in the upper and lower panels of a stainless steel box-shaped shell. A lock is installed at the near end of the shell, facilitating the replacement operation of the internal pipeline, and the far end is fixedly arranged; the left end of the shell is an open design, the right end is fixedly closed and there is a liquid flow port at the bottom; the multi-layer ceramic layer components on the upper and lower two sides inside the shell are symmetrically distributed. The ceramic layer components are respectively composed of four different thermal effect ceramic components. The layer close to the stainless steel plate is a high and low density microporous heat-insulating foamed ceramic plate, and grooves are provided in the ceramic plate. The electric heating wires are respectively arranged in series and embedded in the S-shaped high heat-conducting through-hole porcelain pipes. The electric heating wires are connected in parallel to an external power supply and a PID control module. The upper buckle plate composed of a uniformly porous high heat-conducting foamed ceramic plate and a high heat-conducting thin-layer glazed ceramic plate is integrally buckled on the lower buckle plate embedded with the electric heating wire component. The middle of the surface of the buckle plate is a smooth circular frustum shape that is slightly convex, preventing liquid from remaining on the surface or entering the electric heating wire component to form a short circuit, and the liquid is discharged through the liquid flow port at the right end.

[0089] The thermal insulation housing not only plays a role in heat preservation, but also provides a certain degree of physical protection for the sample tube testing unit 63. It can prevent damage or interference to the sample tube testing unit 63 caused by external mechanical collisions, dust, moisture and other factors, ensuring the normal operation of the testing assembly 6 and the accuracy of the test data. At the same time, the presence of the thermal insulation housing can reduce the influence of external environmental factors on the testing process, providing a relatively stable and independent testing space for the sample tube testing unit 63. The testing cavity 624 is specifically used to accommodate the sample tube testing unit 63, making the layout of the testing unit in the thermal insulation housing more reasonable and orderly. Such a design helps to maintain a uniform distribution of heat flow in the testing cavity 624, avoiding local temperature differences, and further improving the stability and consistency of the testing environment. A uniform temperature distribution is very important for ensuring the reliability and repeatability of the test results, enabling the results between different test batches to be more comparable.

[0090] More preferably, the number of the antioxidant testing devices 2 is multiple, and the multiple antioxidant testing devices 2 are stacked up and down to form an integrated testing system; a heat insulation layer is further arranged between the multiple antioxidant testing devices 2 or a heat insulation mechanism is arranged on the inner side surface of the second box body 4;

[0091] In the embodiment of the present invention, to save floor area, the entire testing system adopts an integrated box design, which is divided into two layers, with two units on each layer, a total of four units. Each unit is adiabatic to each other. Along the radial direction on both sides of the testing tube in a single unit, a hot water heat preservation system is arranged, and the bottoms are connected. The upper and lower two sides are lined with an adiabatic layer. The hot water heat preservation system is controlled by color TV heating, and the temperature is controlled by PID to ensure that the temperature fluctuation in the testing unit cavity meets the testing requirements. When specifically implementing, the number of the antioxidant testing devices 2 can also be four, so that a set of system can meet more diverse requirements.

[0092] The testing fixture includes a connecting flange, and the connecting flange is used for clamping the sample tube, and the flange gasket at the connecting flange is made of polytetrafluoroethylene.

[0093] In the embodiment of the present invention, the multiple antioxidant testing devices 2 are stacked up and down, which can integrate more testing units in a limited space, greatly improving the space utilization rate. For the situation where the space of the laboratory or the testing site is limited, this integrated stacking design can significantly increase the number of testing devices without increasing the floor area, improve the overall testing efficiency, and meet the requirements of large-scale pipe antioxidant testing.

[0094] A plurality of test devices arranged in a stacked manner form an integrated test system, which facilitates centralized management and control of the entire system. Test parameters can be uniformly set, the test process can be monitored, and test data can be collected, reducing the complexity and workload of operations. For example, through a central control system, parameters such as temperature, flow rate, and pressure of all stacked test devices can be set and adjusted, improving the convenience and consistency of testing. The integrated stacked design can share some infrastructure and auxiliary equipment, such as water supply systems, power supply systems, control systems, etc., thereby reducing the procurement cost and operating cost of equipment. In addition, due to the efficient use of space, costs such as site leasing are also reduced, improving the economy of the test system.

[0095] A heat insulation layer is provided between multiple antioxidant test devices 2 or a heat insulation mechanism is provided on the inner side surface of the second box body 4, which can effectively reduce the heat exchange between the test devices and between the test devices and the external environment, and reduce heat loss. This helps to maintain the temperature stability inside each test device, ensure that the pipe is in a constant temperature environment during the test, and improve the accuracy of the test results. Because temperature fluctuations may affect the antioxidant performance test of the pipe, a stable temperature environment can more realistically simulate the actual use conditions of the pipe.

[0096] The connecting flange of the embodiment of the present invention is used for clamping the sample tube, and can provide a stable and reliable fixing effect, ensuring that the sample tube will not loosen or displace during the test, and ensuring that the liquid can smoothly pass through the sample tube for the antioxidant test. This reliable clamping method helps to improve the accuracy and repeatability of the test, and avoid test errors caused by the insecure fixation of the sample tube. The flange gasket at the connecting flange is made of polytetrafluoroethylene, and polytetrafluoroethylene has extremely excellent chemical stability and can resist the erosion of almost all chemical substances. In the antioxidant test of the pipe, the test liquid may have certain corrosiveness, and the polytetrafluoroethylene flange gasket can effectively prevent the leakage of the test liquid, protect the test device from corrosion, and at the same time ensure the integrity of the test liquid components, ensuring that the test results can truly reflect the antioxidant performance of the pipe.

[0097] More preferably, the test system further includes a control device 9. A first regulating valve 51 electrically connected to the control device 9 is provided on the water inlet pipe, and a second regulating valve 52 electrically connected to the control device 9 is provided on the water outlet pipe; a third regulating valve 71 electrically connected to the control device 9 is provided at the water return end of the liquid storage tank 61;

[0098] The liquid storage tank 61 is provided with a detection end. A sleeve is installed at the detection end, and a sensor assembly communicatively connected to the control device 9 is provided at the bottom of the sleeve. The sensor assembly is used to obtain the sensing information of the liquid to be detected pumped from the liquid storage tank 61 by the micro pump. The sensor assembly includes a first temperature sensor, a redox sensor, and a chlorine water concentration sensor. The liquid storage tank 61 is further provided with a first pressure sensor and a third heater electrically connected to the control device 9. The liquid heater is installed at the liquid storage tank 61 through a heating end. As Figure 7 shown, the liquid storage tank 61 includes a chlorine addition port 611, a heating end 612, a water quality detection end 613, a drain port 614, a pressure detection end 615, a water outlet 616, a water inlet 617, and a water return port 618.

[0099] A second pressure sensor and a flow sensor electrically connected to the control device 9 are provided at the connecting pipeline 7. The second pressure sensor and the flow sensor are used to monitor the pressure signal and the flow signal in the connecting pipeline 7.

[0100] In the embodiment of the present invention, a first regulating valve 51 electrically connected to the control device 9 is provided on the water inlet pipe, a second regulating valve 52 is provided on the water outlet pipe, and a third regulating valve 71 is provided at the water return end of the liquid storage tank 61. The control device 9 can accurately adjust the flow rate of the test liquid in the circulation loop by controlling the opening degrees of these regulating valves according to the preset test parameters and actual requirements. For example, when simulating the antioxidant test of pipes under different working conditions, the flow rate can be flexibly adjusted to more realistically reflect the antioxidant performance of the pipes in the actual use environment, improving the accuracy and reliability of the test results. By controlling the opening degrees of the regulating valves, not only the flow rate can be adjusted, but also the pressure in the system can be maintained stable. When the system pressure fluctuates, the control device 9 can timely adjust the regulating valve to restore the pressure to the set range, avoiding damage to the test assembly 6 and the sample tube due to unstable pressure, and ensuring the safe and stable progress of the test process.

[0101] In the embodiment of the present invention, the host PLC uses the Siemens S7-1200 series as the central control element. One 12-inch touch screen and one Internet of Things module are configured for on-site control as the configuration monitoring system and the human-machine interface. Users can monitor the system operation through a mobile phone or a remote computer. The remote computer can store the operation data and perform chart analysis. When designing, the touch screen can be set on the side for convenient use by users for unified monitoring and management. During the specific implementation, it is uniformly monitored and managed through the touch display module 91 of the control device 9, and the corresponding information is also displayed through the ORP display module 92 and the chlorine measurement display module 93.

[0102] The main control system of the embodiment of the present invention controls the chlorine water supply system (including the online ORP system, chlorine measurement system, temperature sensing control system), the centrifugal pump motor frequency converter control and pressure control and flow regulation system, the split-type heat preservation system, the sensing and control system, and the centrifugal pump motor, the heating and heat preservation system, the chlorine water supply system, the alarm system and other digital output (DO) modules to realize the start and stop and alarm of the actuators. ORP value control method: Detect the pipeline water flow and ORP value, and then control the opening degree of the valve for adding chlorinated water to control the ORP value. When the ORP value is too high, the valve opening degree is reduced; when the ORP value is too low, the valve opening degree is increased.

[0103] Since the system is a pressurized closed system, in order to obtain the temperature and oxidation-reduction potential ORP value online, special anti-pressure and anti-impact contact probes need to be selected. In the embodiment of the present invention, a multi-way valve sleeve and a pulse type design are adopted. A micro metering pump is installed on the external sleeve, and the water tank is connected through the multi-way valve. The temperature, oxidation-reduction potential ORP, and chlorine water concentration sensor probes are placed at the bottom end of the sleeve. Every 1-4 hours, the multi-way valve connects the sleeve and the water tank and pumps the chlorine water in the water tank into the sleeve. The micro pump pumps 5-10 ml of chlorine water, and then rotates the multi-way valve to disconnect the sleeve from the water tank. At the same time, the sensor probe is placed under the liquid level to test the relevant parameters and upload them. After 10-15 seconds, rotate the multi-way valve again, and the micro pump reversely pumps the liquid in the sleeve back into the water tank. One pulse cycle ends. When the parameters deviate, the experimenter will be reminded by the terminal or on-site alarm. Repeat this process. Every 12-48 pulse cycles, stay for 1-5 minutes, and extract the chlorine water in the sleeve for sample analysis.

[0104] A small amount of chlorine water is exported through the multi-way valve, and the temperature, oxidation-reduction potential ORP, chlorine water concentration, etc. are measured under normal pressure conditions. After the test is completed, the small amount of liquid is pumped back into the water tank. Since the chlorine water dynamic system is a sealed system and the pressure and temperature are relatively stable, pulse testing can be adopted, and the pulse cycle can be set to 0.5-5 hours.

[0105] Test component 6: Flange connection to ensure the stable fixation of the pipeline sample during the experiment and avoid external disturbances. The length of the sample tube is 300-500 mm, the temperature fluctuation inside the tube does not exceed ±0.1 °C, the temperature difference between the inside and outside of the tube does not exceed ±2.5 °C, the chlorine deviation of the chlorine water in the tube does not exceed ±0.2 ppm, and the pH value deviation does not exceed ±0.2 ppm; the conveying pipeline is arranged symmetrically in a loop, with 2-5 sections in a single path (4-10 sections in a loop) to ensure the accuracy of data prediction and the extraction of samples during the experiment.

[0106] When extracting a single-section tube sample during the process, a stainless steel tube or a pure polytetrafluoroethylene tube lined with polytetrafluoroethylene of the same size specification needs to be used for replacement. The sample tube interface is connected by a flange, and the flange gasket is made of polytetrafluoroethylene to avoid leakage caused by the aging of chlorine water, so as to prevent the life prediction from being distorted.

[0107] A sleeve is installed at the detection end of the liquid storage tank 61, and a sensor assembly including a first temperature sensor, a redox sensor, and a chlorine water concentration sensor is arranged at the bottom of the sleeve. These sensors can obtain in real time the sensing information such as the temperature, redox potential, and chlorine water concentration of the liquid to be detected extracted from the liquid storage tank 61. By monitoring these parameters, the state of the test liquid can be comprehensively understood, providing accurate data support for evaluating the antioxidant performance of the pipe material in a specific liquid environment. The sensor assembly is communicatively connected to the control device 9 and transmits the obtained sensing information to the control device 9 in real time. The control device 9 can adjust the test conditions in a timely manner according to these data, such as adjusting the liquid temperature through the third heater, or adjusting the dosing operation according to the changes in the redox potential and chlorine water concentration, etc., to ensure that the test liquid is always in a suitable state and improve the accuracy and reliability of the test results. The setting of the sleeve provides certain protection for the sensor assembly, preventing the sensor from being damaged due to direct contact with the liquid and other components in the liquid storage tank 61, extending the service life of the sensor, and ensuring the long-term accuracy and stability of the monitoring data.

[0108] In the embodiment of the present invention, a first pressure sensor electrically connected to the control device 9 is arranged on the liquid storage tank 61 to monitor the pressure condition in the liquid storage tank 61 in real time. When the pressure exceeds the set threshold, the control device 9 can take timely measures, such as adjusting the regulating valve or issuing an alarm, to prevent the liquid storage tank 61 from being damaged due to excessive pressure and ensure the safe operation of the test system. The third heater is installed on the liquid storage tank 61 through the heating end and is electrically connected to the control device 9. The control device 9 can accurately control the working state of the third heater according to the temperature information fed back by the first temperature sensor, heat or keep warm the liquid in the liquid storage tank 61, so that the liquid temperature is maintained within the set range. A stable liquid temperature is crucial for the antioxidant test of the pipe material, which can avoid errors in the test results caused by temperature fluctuations and improve the accuracy of the test.

[0109] More preferably, the water pump device 5 includes a frequency converter and a water pump motor. The frequency converter is electrically connected to the control device 9, and the frequency converter is used to control the working state of the water pump motor;

[0110] The control device 9 further includes a communication module, and transmits the obtained on-site data to the background server through the communication module, and transmits the on-site data to the corresponding intelligent terminal through the background server.

[0111] The Internet of Things module comes with a background software, which transmits on-site data to the background server through the Internet of Things network. The background server then transmits the data to terminals such as mobile phones, tablets, and remote computers through the built-in WIFI and mobile data modules. Terminals such as mobile phones, tablets, and remote computers are mainly used to monitor and control the system operation. When the system is abnormal, the background service notifies relevant personnel through WeChat or text messages, or can directly call the relevant personnel's phone to notify. The remote computer is mainly used to collect and analyze test data. The background server automatically saves the test data, which can be transmitted to the computer and displayed in the form of curve graphs, data reports, etc.

[0112] After the device is connected, it is necessary to define internal and external variables in the database, such as the maximum value of fluid temperature, the on-off signal of the solenoid valve, etc.; internal variables are used to store system content, such as test running time, branch pipeline pressure, etc. Based on the modular hardware of PLC and the definition of the Internet of Things database, the test system thus consists of 4 control modules: pipeline control, alarm system, pump frequency conversion, and temperature control system. On the main page of the control system, the start and stop of the water tank heater and the variable frequency centrifugal pump can be realized, the opening and closing of each branch pipeline can be controlled, and the force of the main pipeline and the water tank temperature can be set. At the same time, the information of each sensor is displayed, including the air bath temperature, water tank temperature, branch pipeline pressure and flow rate, main pipeline pressure and flow rate, and specimen test time. The monitoring of these parameters helps the normal operation of the chlorine oxidation resistance test of PE-HD pipes. If problems occur, the alarm system will be triggered. During the actual operation of the test, both the water tank temperature and the air bath temperature reach the set values, and the pressure of each branch pipeline basically reaches the set branch pipeline pressure. The pipe materials in the embodiments of the present invention refer to metal water supply pipes or polyolefin water supply pipes.

[0113] In the water pump device 5 in the embodiment of the present invention, the frequency converter is electrically connected to the control device 9. The control device 9 can accurately adjust the speed of the water pump motor through the frequency converter according to the test requirements. Since the flow rate of the water pump is closely related to the motor speed, by changing the motor speed, precise control of the water pump output flow rate can be achieved. In the anti-oxidation test of pipe materials, different test scenarios may require different liquid flow rates. This precise flow rate adjustment function can more realistically simulate the water flow situation of the pipe materials in the actual use environment, improving the accuracy and reliability of the test results. During the test process, it may be necessary to adjust the working state of the water pump at any time according to different test stages or test conditions. The cooperation between the frequency converter and the control device 9 can quickly respond to these changes, flexibly adjust the speed and flow rate of the water pump motor, enabling the test system to better adapt to various test requirements and improving the flexibility and efficiency of the test.

[0114] In the embodiment of the present invention, the communication module of the control device 9 can transmit the acquired on-site data (such as parameters like temperature, pressure, flow rate, liquid composition, etc.) to the background server in real time. Testers can connect to the background server through corresponding intelligent terminals (such as mobile phones, tablets, computers, etc.) to view the running status and test data of the test system at any time and anywhere. This enables testers to understand the test progress and equipment operation conditions in a timely manner without having to go to the test site in person, realizing remote monitoring and management and improving work efficiency.

[0115] Based on the on-site data transmitted in real time in the embodiment of the present invention, the background server can set corresponding thresholds and algorithms to monitor and evaluate the running status of the test system in real time. When data anomalies or potential equipment failures are detected, the background server can promptly send warning messages and transmit the messages to the intelligent terminal. Testers can take timely measures according to the warning messages to avoid the occurrence or expansion of failures, ensure the normal operation of the test system, and reduce test interruptions and equipment damage caused by failures. Transmitting the on-site data to the intelligent terminal through the background server facilitates data sharing and collaboration among different departments and personnel. For example, R & D personnel, testers, and managers can obtain test data simultaneously and jointly participate in the discussion and optimization of test plans, improving the collaboration efficiency and work effectiveness of the team.

[0116] Advantages of the test system in the embodiment of the present invention: First, the improved test system adopts a modular combined box-type shock-absorbing design, with a simple structure, high integration, small single floor area, avoiding the influence of motor vibration on the service life of pipes. It is a modular cyclic test system, with a large number of samples under multiple parameters in a single test, high test process efficiency, and greatly shortening the evaluation cycle; Second, 316L stainless steel polytetrafluoroethylene is used as the inner lining for the connecting pipe, polytetrafluoroethylene gaskets are used for the joints, and polytetrafluoroethylene pipes are used for the replacement pipes. The system has a long service life, good corrosion resistance and sealing performance, and irrelevant indicators are not easily dissolved, avoiding test failure or excessive deviation of test results; Third, multi-way valves are used to cope with harsh test conditions, with good adaptability of in-line test instruments and sensors, and the instrument probes are not easily damaged or the data is accurate; Fourth, the system's automatic control system has good coordination, small redundancy, good consistency in the test process, high accuracy in predicting the specimen life by the life extrapolation model, energy-saving during operation and low test cost.

[0117] The test system in the embodiment of the present invention adopts a modular combined box-type shock-absorbing design, and the overall structure is simple, with high integration and small single floor area. The split design can effectively avoid the influence of motor vibration on the service life of pipes during the test process. Moreover, the embodiment of the present invention adopts a modular cyclic test system, with a large number of samples under multiple parameters in a single test, high test process efficiency, and greatly shortening the evaluation cycle.

[0118] Embodiment 2:

[0119] Please refer to Figure 13, Figure 13 Schematic diagram of the process of testing the oxidation resistance of pipes disclosed in the embodiment of the present invention. Figure 13 As shown, the oxidation resistance test method of the pipe includes:

[0120] S101: receiving a target temperature control condition set by a user, performing data analysis on the target temperature control condition to generate initial temperature control parameters of each heating unit in the heating system, and controlling the working state of each component in the heating system according to the initial temperature control parameters;

[0121] S102: Acquire temperature sensing information at a corresponding heating unit in the test system, and match the temperature sensing information with a target temperature control condition. If the target temperature control condition is reached, start the water pump system to pump the liquid in the chlorine water supply system to the corresponding connecting pipeline and the sample test tube to realize a circulation loop;

[0122] S103: determining whether the target operating state is reached according to the received pressure signal and flow rate signal at the connection pipeline, and when the pressure signal and flow rate signal meet the set requirements, determining to enter the test phase and recording the start time;

[0123] S104: In the test phase, a test temperature signal detected by a temperature sensor disposed at the connecting pipeline is obtained, and the working state of the heater at the liquid storage tank is adjusted according to the test temperature signal and the pipeline transport parameter.

[0124] The embodiment of the present invention receives the target temperature control conditions set by the user and performs data analysis, and can generate the initial temperature control parameters of each heating unit in the heating system according to the specific test requirements. Different pipe oxidation resistance tests may require different temperature environments. In this way, it can ensure that the heating system works according to accurate parameters, provide stable and satisfactory temperature conditions for subsequent tests, and improve the accuracy and reliability of the test results.

[0125] In specific implementation, the working state of each component in the heating system is controlled according to the initial temperature control parameters, making the operation of the heating system more orderly and efficient. The start, stop and power adjustment operations of each heating unit can be reasonably arranged to avoid temperature fluctuations or energy waste caused by the uncoordinated operation of the heating system components, and ensure the stability of the temperature environment during the entire test process.

[0126] Obtain the temperature sensing information at the corresponding heating unit in the test system and match it with the target temperature control conditions. Only after the target temperature control conditions are reached, the water pump system is started, which ensures that the test is carried out in an accurate temperature environment. Since temperature has a significant impact on the antioxidant performance of the pipe material, accurate temperature conditions can make the test results more truly reflect the actual antioxidant ability of the pipe material and reduce the test errors caused by inaccurate temperature. When the temperature reaches the standard, the water pump system is started to pump the liquid in the chlorine water supply system to the corresponding connecting pipelines and sample test tubes to form a circulation loop. A stable circulation loop is the basis for the antioxidant test of the pipe material. It can ensure that the test liquid continuously flows around the pipe material, simulates the actual use environment, enables the pipe material to fully contact with the test liquid, and thus more accurately evaluates the antioxidant performance of the pipe material.

[0127] Before the experiment starts, pump the chlorine water with the corresponding concentration into the water tank, and comprehensively check each module of the device to ensure the normal operation of the equipment and connections. According to the experimental design requirements, input the target experimental parameters of each experimental unit into the control system and make initial adjustments. Start the heating system and wait for each unit to reach the target temperature control conditions (such as chlorine water temperature, hot water insulation system temperature, temperature of each unit cavity, etc.); open the pipeline systems of each unit, start the pump system, and gradually adjust each module to reach the target operating state (pressure and fluctuations, flow rate and fluctuations), and record the start time of the experiment. Manually check the operating temperature, pressure, ORP, chlorine concentration and other parameters, which are displayed in real time on the touch screen, monitor whether they deviate from the target value range, and synchronously check the synchronization of the data terminal data and the frequently occurring data. After stabilization, enter the actual measurement stage. During the test stage, the control system regularly records the target parameters and sends them to the data terminal. When running to a certain time H, stop the machine, take out the sample tube, replace it with a pre-prepared replacement tube, close the box system, and continue to run as described above. The sample tube is sent for testing. Repeat this process multiple times until the experiment ends.

[0128] In the embodiment of the present invention, according to the pressure signal and flow rate signal at the connecting pipeline, it is determined whether the target operating state is reached. Only when the pressure signal and flow rate signal meet the set requirements, it is determined to enter the test stage. This can ensure that the test system conducts tests under stable working conditions, avoiding inaccurate test results or failures during the test process caused by unstable system operation (such as too high or too low pressure, uneven flow rate, etc.). Recording the start time helps to accurately calculate the duration of the test, which is very important for evaluating the change in the antioxidant performance of the pipe material within a certain period of time. Accurate time recording can make the test results more traceable and comparable, facilitating subsequent analysis and research of the test data.

[0129] During the test phase, obtain the test temperature signal detected by the temperature sensor at the connection pipeline, and adjust the working state of the heater at the liquid storage tank according to this signal and the pipeline transportation parameters. This can monitor the temperature change during the test in real time and make timely adjustments to ensure that the test temperature always remains near the target temperature control conditions, improving the accuracy and stability of the test results. By adjusting the working state of the heater according to the test temperature signal and the pipeline transportation parameters, the temperature environment stability of the entire test system can be optimized. Even if there are some external interferences or internal system changes (such as changes in liquid flow rate, etc.) during the test, the temperature can be adjusted in a timely manner to maintain stable test conditions, thereby more accurately evaluating the antioxidant performance of the pipe material.

[0130] More preferably, the pipeline transportation parameters include the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube;

[0131] Such as Figure 14 shown, the test method further includes:

[0132] Obtain the first environmental parameter in the first box body and the second environmental parameter in the second box body;

[0133] The adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transportation parameters includes:

[0134] S1041: Determine the heat loss of each transportation section according to the first environmental parameter in the first box body, the second environmental parameter in the second box body, the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube;

[0135] S1042: Determine the output temperature parameter at the liquid storage tank according to the test temperature signal and the heat loss of each transportation section, and generate a corresponding temperature adjustment parameter according to the output temperature parameter and the set output temperature to adjust the working state of the heater at the liquid storage tank;

[0136] And / or, the test method further includes:

[0137] Record the target detection parameters regularly according to the set method, and the target detection parameters include temperature information, redox potential information, and chlorine water concentration information;

[0138] And / or, the test method further includes:

[0139] Obtain the temperature monitoring information detected by the temperature sensing component at the heat preservation unit, and calculate the temperature difference between the sensor position and the object position according to the heat transfer model;

[0140] Generate dynamic adjustment parameters for each heating zone based on the temperature monitoring information, temperature difference information, and the set test temperature, and adjust the power parameters of the heating components in each heating zone according to the dynamic adjustment parameters.

[0141] Embodiments of the present invention can accurately calculate the heat loss of each conveying section by considering pipeline conveying parameters such as the distances from the water outlet end of the liquid storage tank to key positions of the water pump device, as well as the environmental parameters in the first and second boxes. Different pipeline lengths and environmental temperatures will result in different heat dissipation situations of the liquid during transportation. Accurately determining these heat losses provides a basis for subsequent precise adjustment of the liquid storage tank heater. This ensures that the temperature of the liquid reaching the sample test tube always meets the test requirements, avoids temperature deviation caused by heat loss, and thus improves the accuracy of the test results for the antioxidant properties of the pipe material. The environmental parameter here is specifically the environmental temperature parameter.

[0142] Embodiments of the present invention determine the output temperature parameter at the liquid storage tank based on the test temperature signal and the calculated heat loss, and further generate a temperature adjustment parameter to control the working state of the heater. This dynamic regulation method can respond in real time to temperature fluctuations caused by factors such as environmental changes and pipeline heat loss during the test. For example, when the environmental temperature decreases and the heat loss increases, the heater can automatically increase the output temperature to ensure that the test liquid is still at an appropriate temperature when it reaches the sample tube, maintaining a stable test environment and improving the reliability and stability of the test.

[0143] Embodiments of the present invention regularly record target detection parameters such as temperature, redox potential, and chlorine water concentration in a set manner, and can comprehensively record the key data during the test. These data not only reflect the current state of the test but also form a data sequence through long-term recording, facilitating subsequent trend analysis. By analyzing the change trends of these parameters over time, the performance change laws of the pipe material during the antioxidant test can be deeply understood, providing richer and more comprehensive data support for evaluating the antioxidant performance of the pipe material and improving the scientific nature and reference value of the test results. Complete recording of the target detection parameters helps to trace problems when abnormal test results occur. If it is found that the test results for the antioxidant properties of the pipe material do not meet expectations, the recorded parameters can be reviewed to find possible problem-causing factors, such as abnormal temperature fluctuations and excessive changes in redox potential. This helps to promptly discover problems during the test, take corresponding measures for improvement, and thus improve the test quality and accuracy.

[0144] In the embodiments of the present invention, the temperature monitoring information detected by the temperature sensing component at the heat preservation unit is obtained, and the temperature difference between the sensor position and the object position is calculated in combination with the heat transfer model, so as to have a more detailed understanding of the temperature distribution in the heat preservation unit. The temperatures at different positions may vary due to the heat transfer process. By accurately grasping these differences, dynamic adjustment parameters for each heating area are generated according to the set test temperature. This enables the heating component to perform refined regulation according to the temperature requirements of different areas, ensuring that the temperature in the entire heat preservation unit is uniform and meets the test requirements, providing a stable and accurate temperature environment for the oxidation resistance test of the pipe. Adjusting the power parameters of the heating component according to the dynamic adjustment parameters avoids excessive energy consumption of the heating component when high power is not required. By accurately controlling the power of the heating components in each area, while meeting the test temperature requirements, the energy consumption is minimized, the energy utilization efficiency of the entire test system is improved, which meets the requirements of energy conservation and emission reduction, and at the same time reduces the test cost.

[0145] When carrying out the specific implementation, since long-term heat preservation treatment is required, an operation load control method is also adopted to reduce the operation load control of the overall machine; the test method further includes:

[0146] Obtain the current first operation load of the heating component;

[0147] Input the first operation load and the temperature change duration into a pre-determined optimization analysis model to obtain an optimization analysis result, where the optimization analysis result includes a second operation load, and the second operation load is the operation load that the heating component needs to reach;

[0148] Generate temperature regulation optimization parameters for the heating component according to the second operation load.

[0149] In the embodiments of the present invention, the current operation load data of the heating component (such as the heater at the liquid storage tank, the heating component in the heat preservation unit, etc.), that is, the first operation load, is collected in real time through a sensor or a monitoring system. This data reflects the current working intensity of the heating component. For example, for an electric heater, it may be reflected as the current and voltage values at present, and then the actual power calculated therefrom.

[0150] In the embodiments of the present invention, an optimization analysis model is constructed in advance through a large amount of experimental data, theoretical analysis, and machine learning algorithms. This model takes the first operating load and the temperature change duration of the heating component as input parameters. The temperature change duration refers to the time elapsed from the start of heating to the current moment when the water temperature reaches a certain state. Inside the model, based on the physical heat transfer principle, the characteristic parameters of the equipment, and the empirical rules formed by a large amount of past experimental data, the input data is analyzed and processed. For example, the model may include a thermal efficiency calculation module for different types of heating components, an algorithm for adjusting the heating demand according to the time accumulation effect, etc. Through complex operations, an optimization analysis result is output, that is, the second operating load that the heating component needs to reach. After obtaining the second operating load, the system converts it into corresponding temperature control optimization parameters according to the control logic of the heating component.

[0151] Traditional temperature control methods often rely on simple temperature feedback. For example, when the temperature is lower than the set value, full power heating is carried out, and heating stops after reaching the set value. This method is prone to large temperature fluctuations. In this solution, by comprehensively considering the current operating load and the temperature change duration of the heating component, the accurate second operating load is obtained using the optimization analysis model, and the corresponding control parameters are generated. This enables the heating component to adjust the heating power in real time and finely according to the actual situation, avoiding overshoot or under-regulation of the temperature, and always keeping the test environment temperature stably controlled within the target range, improving the accuracy of the test results of the antioxidant properties of the pipe material, because even a small temperature fluctuation may affect the antioxidant performance test of the pipe material. This solution dynamically adjusts the operating load of the heating component according to the optimization analysis result. In the initial stage of water temperature rise, the heating power can be appropriately increased to quickly raise the temperature and reduce the heating time; when the water temperature approaches the target value, the heating power is reduced to maintain the temperature stability with a small energy input. This can not only meet the temperature requirements of the test but also avoid unnecessary energy consumption, reduce the operating cost of the test system, and conform to the concept of energy conservation and environmental protection.

[0152] The optimization analysis model of this solution can flexibly calculate the second operating load suitable for various test scenarios according to the input operating load and temperature change duration of the heating component. No matter how complex the test requirements are, the heating component can accurately adjust the heating power through the generated temperature control optimization parameters to adapt to diverse test needs, enhancing the versatility and adaptability of the test system. When the heating component undergoes frequent large-scale power switching, it is prone to problems such as current shock and mechanical wear, which can shorten its service life. This solution enables the operating load of the heating component to be adjusted smoothly through the optimization analysis model, avoiding sharp changes in power. For example, it avoids the frequent start and stop in traditional control methods, reduces the damage to the heating element, circuit, and related mechanical components, thereby extending the service life of the heating component and the entire test equipment, reducing the equipment maintenance and replacement costs, and improving the stability and reliability of the test system.

[0153] When making a specific model selection, the neural network model in machine learning is adopted as the basic architecture of the optimization analysis model, and the multi-layer perceptron (MLP) can be specifically selected. The MLP consists of an input layer, multiple hidden layers, and an output layer. Its powerful non-linear mapping ability can effectively handle the complex relationship between the input data and the output operating load. The input layer receives the pre-processed first operating load and temperature change duration data, and the output layer outputs the optimization analysis result, that is, the second operating load.

[0154] The MLP model is trained using the cleaned and sorted data. During the training process, the data is divided into a training set, a validation set, and a test set. The training set is used to adjust the parameters of the model (such as the weights and biases between neurons in each layer) so that the model can learn the internal law between the input data and the output operating load. The validation set is used to monitor the training process of the model to prevent overfitting. When the loss function of the model on the training set (such as the mean square error, which is used to measure the difference between the predicted value and the true value of the model) continues to decrease, while the loss function on the validation set begins to increase, it indicates that the model has overfitted. At this time, the structure or training parameters of the model need to be adjusted. The test set is used to evaluate the performance of the trained model to ensure that the model can also have good prediction performance on unseen data. To improve the performance of the model, feature engineering is carried out. In addition to the directly input first operating load and temperature change duration, some other features can also be derived according to the heat transfer principle and test experience. For example, calculate the change rate of the water temperature (the change amount of the water temperature per unit time) and input it into the model as a new feature. In addition, the structure of the model is optimized, such as adjusting the number of hidden layers and the number of neurons, and the optimal model structure is found through multiple experiments to improve the prediction accuracy and generalization ability of the model.

[0155] Another problem that will be encountered during the specific implementation is how to accurately estimate the time when the test fails. When a rupture occurs, there will be pressure fluctuations; it is impossible to always monitor the test device, so it is very important to determine the accurate failure time.

[0156] Install a high-precision pressure sensor at the connection pipeline of the test system to collect pressure data in real time at a high-frequency sampling rate (such as 10 times per second or higher). Ensure that the accuracy and response speed of the pressure sensor can accurately capture small pressure fluctuations. At the same time, record the timestamp of the pressure data for subsequent analysis of the relationship between pressure changes and time.

[0157] Before the test starts, monitor and analyze the pressure data under normal operating conditions for a period of time (e.g., 1 - 2 hours) to determine the range and characteristics of normal pressure fluctuations. Normal pressure fluctuations may be caused by factors such as pump operation and liquid flow, and usually have a certain regularity and a small fluctuation amplitude. Based on the normal pressure fluctuation data, establish a pressure fluctuation model. Statistical methods, such as calculating the mean, standard deviation, etc., can be used to describe the distribution of normal pressure fluctuations. Machine learning algorithms, such as Gaussian Mixture Model (GMM), can also be used to model the normal pressure data to better capture its complex distribution characteristics.

[0158] During the test, compare the collected pressure data with the established pressure fluctuation model in real time. When the pressure data exceeds the normal fluctuation range and the duration exceeds a certain threshold (e.g., 5 - 10 consecutive sampling points), it is determined that an abnormal pressure fluctuation has occurred. For each occurrence of abnormal pressure fluctuation, record the characteristic parameters such as the occurrence time, fluctuation amplitude, and duration. Based on historical test data and actual rupture situations, analyze the relationship between abnormal pressure fluctuation characteristics and the pipe failure time. It can be found that as the pipe approaches failure, the frequency and amplitude of abnormal pressure fluctuations may gradually increase.

[0159] Adopt regression algorithms in machine learning, such as linear regression, polynomial regression, or Support Vector Regression (SVR), etc. Use the characteristic parameters of abnormal pressure fluctuations (such as the mean, standard deviation, occurrence frequency, etc. of the fluctuation amplitude) as input variables, and the time from the first occurrence of abnormal pressure fluctuation to the actual rupture of the pipe as the output variable to train a failure time prediction model. During real-time monitoring, once an abnormal pressure fluctuation is detected, input its characteristic parameters into the trained failure time prediction model to obtain the predicted failure time.

[0160] Embodiment Three:

[0161] Please refer to Figure 15 , Figure 15 which is a schematic structural diagram of an electronic device disclosed in an embodiment of the present invention. The electronic device can be a computer, a server, etc. Of course, in certain cases, it can also be intelligent devices such as mobile phones, tablet computers, and monitoring terminals, as well as an image acquisition device with processing functions. As Figure 15 shown, the electronic device may include:

[0162] A memory 510 storing executable program code;

[0163] A processor 520 coupled to the memory 510;

[0164] Among them, the processor 520 calls the executable program code stored in the memory 510 and executes some or all of the steps in the antioxidant property test method of the pipe in the first embodiment.

[0165] An embodiment of the present invention discloses a computer-readable storage medium that stores a computer program, wherein the computer program causes a computer to execute some or all of the steps in the antioxidant property test method of the pipe in the first embodiment.

[0166] An embodiment of the present invention also discloses a computer program product, wherein when the computer program product runs on a computer, it causes the computer to execute some or all of the steps in the antioxidant property test method of the pipe in the first embodiment.

[0167] An embodiment of the present invention also discloses an application publishing platform, wherein the application publishing platform is used to publish a computer program product, and when the computer program product runs on a computer, it causes the computer to execute some or all of the steps in the antioxidant property test method of the pipe in the first embodiment.

[0168] In various embodiments of the present invention, it should be understood that the magnitude of the sequence numbers of the various processes does not necessarily mean the inevitable sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0169] The unit described as a separated component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0170] In addition, in each embodiment of the present invention, each functional unit may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0171] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-accessible memory. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a memory and includes several requests for causing a computer device (which may be a personal computer, a server, or a network device, etc., specifically, the processor in the computer device) to execute some or all of the steps of the methods described in the various embodiments of the present invention.

[0172] In the embodiments provided by the present invention, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0173] Those of ordinary skill in the art can understand that some or all of the steps in the various methods of the embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium includes read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically-erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc memories, magnetic disc memories, tape memories, or any other computer-readable medium capable of carrying or storing data.

[0174] The above has introduced in detail the antioxidant test method, system, electronic device and storage medium of the pipe disclosed in the embodiments of the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An antioxidant test system for pipe materials, characterized in that, The antioxidant test system includes an antioxidant test device; the antioxidant test device includes a first box body, a second box body, a water pump device and a test component; the water pump device is arranged in the first box body, the test component is arranged in the second box body, the first box body and the second box body are separately arranged, and both the first box body and the second box body are provided with communication holes; The test component includes a liquid storage tank, a heat preservation unit and a sample tube test unit. The heat preservation unit is used for heat-preserving the sample tube test unit. The sample tube test unit includes a connecting pipeline and test jigs arranged at each test point on the connecting pipeline. The test jigs are used for clamping corresponding sample test tubes and making the sample test tubes communicate with the connecting pipeline. The water pumping end of the water pump device is connected to the water outlet of the liquid storage tank through a water inlet pipe to pump the liquid in the liquid storage tank to the water outlet end of the water pump device, and the liquid sequentially passes through a water outlet pipe and the connecting pipeline and is connected to the water return end of the liquid storage tank to form a circulation loop; the liquid storage tank further includes a medicine adding port for adding medicine; The heat preservation unit includes a heating component, an outer heat preservation layer and a support frame. The outer heat preservation layer is arranged on the outer side surface of the stainless steel support frame. The support frame has a test cavity for accommodating the sample tube test unit. The heating component is arranged on the inner surface of the support frame, and the number of the heating components is multiple; the heating component includes a heat insulation layer, a heat conduction pipeline and a heat conduction layer. The heat conduction layer includes a first heat conduction layer and a second heat conduction layer which are stacked in sequence. One side surface of the heat insulation layer is fixed on the inner surface of the support frame, and a groove is arranged on the other side surface of the heat insulation layer. The heat conduction pipeline is nested in the groove, a heating wire is arranged in the heat conduction pipeline, and the heating wire is electrically connected to a corresponding control device. The control device controls the working state of the heating wire through a PID algorithm. The heat conduction layer covers the heat insulation layer and completely covers the heat conduction pipeline. The first heat conduction layer is a heat-conducting foamed ceramic plate, and the second heat conduction layer is a heat-conducting thin-layer glazed ceramic plate; the height of the heat-conducting thin-layer glazed ceramic plate in the vertical direction decreases sequentially from the middle to both sides.

2. The antioxidant property testing system for pipe materials according to claim 1, characterized in that, A shock absorption layer is arranged between the first box body and the second box body; and / or, the water pump device is installed in the first box body through a shock absorption mechanism; the shock absorption mechanism is a rubber shock absorption pad or an air spring airbag.

3. The antioxidant property testing system for the pipe material according to claim 2, characterized in that The shock absorption layer is a polyurethane shock absorption layer or a rubber shock absorption layer or an intelligent shock absorption layer, and the thickness of the polyurethane shock absorption layer is any value from 20 mm to 60 mm; and / or, the liquid storage tank is a stainless steel inner lining polytetrafluoroethylene pressure tank, and a heat preservation layer is arranged on the outer surface of the liquid storage tank; heat insulation layers are arranged inside the first box body and the second box body.

4. The antioxidant property testing system for pipes as claimed in claim 1, wherein The support frame is a stainless steel box-type support frame, and a drain port is arranged on the bottom surface of the stainless steel support frame.

5. The antioxidant property testing system for the pipe material according to claim 4, characterized in that, The heat conduction pipeline is an S-shaped heat conduction pipeline.

6. The antioxidant property testing system for the pipe material according to claim 5, characterized in that, The number of the antioxidant test devices is multiple, and the multiple antioxidant test devices are stacked up and down to form an integrated test system; a heat insulation layer is further arranged between the multiple antioxidant test devices or a heat insulation mechanism is arranged on the inner side surface of the second box body; The test fixture includes a connecting flange, the connecting flange is used for clamping the sample tube, and the flange gasket at the connecting flange is made of polytetrafluoroethylene.

7. The antioxidant property testing system for pipes according to claim 1, characterized in that The test system further includes a control device, a first regulating valve electrically connected to the control device is arranged on the water inlet pipe, and a second regulating valve electrically connected to the control device is arranged on the water outlet pipe; a third regulating valve electrically connected to the control device is arranged at the water return end of the liquid storage tank; The liquid storage tank is provided with a detection end, a sleeve is installed at the detection end, and a sensor assembly communicatively connected to the control device is arranged at the bottom of the sleeve. The sensor assembly is used for obtaining the sensing information of the liquid to be detected pumped from the liquid storage tank by the micro pump. The sensor assembly includes a first temperature sensor, a redox sensor and a chlorine water concentration sensor; the liquid storage tank is further provided with a first pressure sensor and a third heater electrically connected to the control device, and the third heater is installed at the liquid storage tank through a heating end; A second pressure sensor and a flow sensor electrically connected to the control device are arranged at the connecting pipeline, and the pressure signal and the flow signal in the connecting pipeline are monitored through the second pressure sensor and the flow sensor.

8. The antioxidant property testing system for the pipe as claimed in claim 7, wherein, The water pump device includes a frequency converter and a water pump motor, the frequency converter is electrically connected to the control device, and the frequency converter is used for controlling the working state of the water pump motor; The control device further includes a communication module, and the on-site data obtained is transmitted to the background server through the communication module, and the on-site data is transmitted to the corresponding intelligent terminal through the background server.

9. A method for testing the antioxidant property of a pipe material, characterized in that, Including: Receiving the set target temperature control condition, parsing the data of the target temperature control condition to generate the initial temperature control parameters of each heating unit in the heating system, and controlling the working state of each component in the heating system according to the initial temperature control parameters; Obtaining the temperature sensing information at the corresponding heating unit in the test system, and matching the temperature sensing information with the target temperature control condition. If the target temperature control condition is reached, starting the water pump system to pump the liquid in the chlorine water supply system to the corresponding connecting pipeline and the sample test tube to form a circulation loop; Determining whether the target operating state is reached according to the received pressure signal and flow velocity signal at the connecting pipeline. When the pressure signal and the flow velocity signal meet the set requirements, determining to enter the test stage and recording the start time; In the test stage, obtaining the test temperature signal detected by the temperature sensor arranged at the connecting pipeline, and adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transportation parameters; the pipeline transportation parameters include the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube; The test method further includes: Obtain the first environmental parameter in the first box body and the second environmental parameter in the second box body; Adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transportation parameters includes: Determine the heat loss of each transportation section according to the first environmental parameter in the first box body, the second environmental parameter in the second box body, the distance from the water outlet end of the liquid storage tank to the water pumping end of the water pump device, the distance from the water pumping end to the water outlet end of the water pump device, and the distance from the water outlet end of the water pump device to the first sample test tube; Determine the output temperature parameter at the liquid storage tank according to the test temperature signal and the heat loss of each transportation section, and generate a corresponding temperature adjustment parameter according to the output temperature parameter and the set output temperature to adjust the working state of the heater at the liquid storage tank.

10. The method for testing the antioxidant property of a pipe according to claim 9, characterized in that The testing method further includes: Regularly record the target detection parameters according to a set manner, and the target detection parameters include temperature information, redox potential information, and chlorine water concentration information; And / or, the testing method further includes: Obtain the temperature monitoring information detected by the temperature sensing component at the heat preservation unit, and calculate the temperature difference between the sensor position and the object position according to the heat transfer model; Generate dynamic adjustment parameters for each heating area according to the temperature monitoring information, the temperature difference information, and the set test temperature, and adjust the power parameters of the heating components in each heating area according to the dynamic adjustment parameters.

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