System and method for testing oxidation resistance of pipe

Abstract

The embodiment of the invention relates to the technical field of pipe testing, and discloses a pipe oxidation resistance testing system which comprises an oxidation resistance testing device. The oxidation resistance testing device comprises a first box body, a second box body, a water pump device and a testing assembly, the water pump device is arranged in the first box body, the testing assembly is arranged in the second box body, and the first box body and the second box body are arranged in a split mode. The testing assembly comprises a liquid storage tank, a heat preservation unit and a sample tube testing unit, the heat preservation unit is used for conducting heat preservation on the sample tube testing unit, and the sample tube testing unit comprises a connecting pipeline and testing clamps arranged at all testing points on the connecting pipeline; the test fixture is used for clamping the corresponding sample test tube and enabling the sample test tube to be communicated with the connecting pipeline. The test system provided by the embodiment of the invention adopts a module combination box type damping design, and is simple in overall structure, high in integration level and small in single occupied area. The split type design can effectively avoid the influence of motor vibration on the service life of the pipe in 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 system for testing the oxidation resistance of a pipe, which can reduce the interference of the test environment and improve the accuracy of the prediction of the pipe life.

[0006] The first aspect of the embodiment of the present invention discloses a system for testing the oxidation resistance of a pipe. 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; The test assembly 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 a test fixture arranged at each test point on the connecting pipeline. The test fixture is used to clamp the corresponding sample test tube and connect the sample test tube 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 an inlet pipe to extract the liquid in the liquid storage tank to the outlet end of the water pump device, and the liquid is connected to the return water end of the liquid storage tank through the outlet pipe and the connecting pipeline in turn to form a circulation loop. The liquid storage tank also includes a dosing port for dosing.

[0007] As an optional implementation, in the first aspect of the embodiment of the present invention, a shock-absorbing layer is provided between the first box body and the second box body; And / or, the water pump device is installed on the first box through a shock absorbing mechanism; the shock absorbing mechanism is a rubber shock absorbing pad or an air spring airbag.

[0008] As an optional implementation, in the first aspect of the embodiment of the present invention, the shock absorbing layer is a polyurethane shock absorbing layer or a rubber shock absorbing layer or an intelligent shock absorbing layer, and the thickness of the polyurethane shock absorbing layer is any value between 20 mm and 60 mm; And / or, the liquid storage tank is a stainless steel lined polytetrafluoroethylene pressure tank, and an insulation layer is provided on the outer surface of the liquid storage tank; and a heat insulation layer is provided inside the first box body and the second box body.

[0009] As an optional implementation, in the first aspect of the embodiment 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, the test cavity is used to accommodate 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 support frame is a stainless steel box-type support frame, and a drainage outlet is arranged on the bottom surface of the stainless steel support frame.

[0010] As an optional implementation, in the first aspect of the embodiment of the present invention, the heating component includes a heat insulation layer, a heat-conducting pipe and a heat-conducting layer, the heat-conducting layer includes a first heat-conducting layer and a second heat-conducting layer which are sequentially stacked, one side of the heat insulation layer is fixed to the inner surface of the support frame, the other side of the heat insulation layer is provided with a groove, the heat-conducting pipe is nested in the groove, the heating wire is arranged in the heat-conducting pipe, 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, and the heat-conducting layer is covered on the heat insulation layer and completely covers the heat-conducting pipe; The first heat-conducting layer is a heat-conducting foamed ceramic plate, and the second heat-conducting layer is a heat-conducting thin-layer glazed ceramic plate; the height of the heat-conducting thin-layer glazed ceramic plate decreases from the middle to both sides in the vertical direction, and the heat-conducting pipe is an S-shaped heat-conducting pipe.

[0011] As an optional implementation, in the first aspect of the embodiment of the present invention, the number of the oxidation resistance test devices is multiple, and the multiple oxidation resistance test devices are stacked up and down to form an integrated test system; a heat preservation layer is further provided between the multiple oxidation resistance test devices or a heat preservation mechanism is provided on the inner side of the second box body; The test fixture comprises a connecting flange, which is used to clamp the sample tube, and the flange gasket at the connecting flange is made of polytetrafluoroethylene.

[0012] As an optional implementation, in the first aspect of the embodiment of the present invention, the test system further includes a control device, a first regulating valve electrically connected to the control device is provided on the water inlet pipe, a second regulating valve electrically connected to the control device is provided on 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; The liquid storage tank is provided with a detection end, a sleeve is installed at the detection end, and a sensor assembly is provided at the bottom of the sleeve and is connected to the control device for communication. The sensor assembly is used to obtain sensor information of the liquid to be detected extracted from the liquid storage tank by the micro pump, and the sensor assembly includes a first temperature sensor, a redox sensor and a chlorine water concentration sensor; the liquid storage tank is also provided with a first pressure sensor and a third heater electrically connected to the control device, and the liquid heater is installed on the liquid storage tank through the heating end; The connecting pipeline is provided with a second pressure sensor and a flow sensor electrically connected to the control device, and the pressure signal and the flow signal in the connecting pipeline are monitored by the second pressure sensor and the flow sensor.

[0013] As an optional implementation, in the first aspect of the embodiment 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; The control device further comprises a communication module, through which the acquired on-site data is transmitted to a background server, and through which the on-site data is transmitted to a corresponding intelligent terminal.

[0014] A second aspect of an embodiment of the present invention discloses a method for testing the oxidation resistance of a pipe, comprising: 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; Acquire temperature sensing information at the corresponding heating unit in the test system, and match 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 the sample test tube to realize a circulation loop; Determine whether the target operating state is reached according to the received pressure signal and flow rate signal at the connecting pipeline, and determine to enter the test phase when the pressure signal and flow rate signal meet the set requirements, and record the start time; In the test phase, a test temperature signal detected by a temperature sensor arranged 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 parameters.

[0015] As an optional implementation, in the second aspect of the embodiment of the present invention, the pipeline transport parameters include the distance from the water outlet 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 of the water pump device, and the distance from the water outlet of the water pump device to the first sample test tube; The test method also includes: Acquire a first environmental parameter in the first box and a second environmental parameter in the second box; The step of adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transmission parameter includes: Determine the heat loss of each conveying section according to the first environmental parameter in the first box, the second environmental parameter in the second box, the distance from the water outlet 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 of the water pump device, and the distance from the water outlet 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 conveying section, and generate corresponding temperature adjustment parameters according to the output temperature parameter and the set output temperature to adjust the working state of the heater at the liquid storage tank; And / or, the testing method further comprises: Record target detection parameters regularly according to the set method, wherein the target detection parameters include temperature information, redox potential information, and chlorine water concentration information; And / or, the testing method further comprises: Acquire 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; Dynamic adjustment parameters of each heating area are generated according to the temperature monitoring information, the temperature difference information and the set test temperature, and the power parameters of the heating components of each heating area are adjusted according to the dynamic adjustment parameters.

[0016] A third aspect of an embodiment of the present invention discloses an electronic device, comprising: 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 oxidation resistance test method of the pipe disclosed in the first aspect of the embodiment of the present invention.

[0017] A fourth aspect of an embodiment of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute the oxidation resistance testing method for a pipe disclosed in the first aspect of an embodiment of the present invention.

[0018] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: 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, the integration is high, and the unit footprint is small. The split design can effectively avoid the influence of motor vibration on the life of the pipe during the test process, and the embodiment of the present invention adopts a modular cycle test system, a large number of samples under a single test of multiple parameters, high test process efficiency, and greatly shortened The evaluation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a pipe oxidation resistance testing system disclosed in an embodiment of the present invention; Figure 2 is another structural schematic diagram of the oxidation resistance testing system for pipes disclosed in an embodiment of the present invention; Figure 3 is another structural schematic diagram of the oxidation resistance testing system for pipes disclosed in an embodiment of the present invention; Figure 4 is a front view of the oxidation resistance testing system of the pipe disclosed in the embodiment of the present invention; Figure 5 is another front view of the oxidation resistance testing system for pipes disclosed in an embodiment of the present invention; Figure 6 is a right side view of the first box body disclosed in the embodiment of the present invention; Figure 7 It is a right view of the oxidation resistance testing system of the pipe disclosed in the embodiment of the present invention; Figure 8 It is a structural schematic diagram of a liquid storage tank disclosed in an embodiment of the present invention; Fig. 9 is a structural schematic diagram of a heat preservation unit disclosed in an embodiment of the present invention; Fig.10 is another structural schematic diagram of the heat preservation unit disclosed in an embodiment of the present invention; Fig.11 It is a structural schematic diagram of a heating component disclosed in an embodiment of the present invention; Fig.12 is another structural schematic diagram of a heating assembly disclosed in an embodiment of the present invention; Fig.13 It is a schematic flow chart of a method for testing the oxidation resistance of a pipe provided in an embodiment of the present invention; Fig.14 is a schematic diagram of a temperature regulation process provided by an embodiment of the present invention; Fig.15 It is a structural schematic diagram of an electronic device provided by an embodiment of the present invention.

[0021] Figure numerals: 1, antioxidant test system; 2, antioxidant test device; 3, first box; 31, connecting hole; 4, second box; 5, water pump device; 51, first regulating valve; 52, second regulating valve; 6, test assembly; 61, liquid storage tank; 611, chlorination 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, insulation unit; 621, Support frame; 622, heating component; 622a, insulation layer; 622b, heat-conducting pipe; 622c, first heat-conducting layer; 622d, second heat-conducting layer; 622e, heating wire; 623, temperature measuring component; 624, test cavity; 63, sample tube test unit; 7, connecting pipeline; 71, third regulating valve; 8, shock-absorbing layer; 9, control device; 91, touch display module; 92, ORP display module; 93, chlorine measurement display module; 10, insulation layer; 11, exhaust fan. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] 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 inclusions. For example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The existing system automatic control system has poor coordination, frequent failures, many operating steps, some of which are manually operated, and the consistency of the test process is poor, which in turn affects the accuracy of the life extrapolation model in predicting the life of the sample. The operation process consumes a lot of energy and increases the testing cost. Based on this, the embodiment of the present invention discloses an oxidation resistance test system for pipes, which adopts a modular combination box-type shock absorption design, and has a simple overall structure, high integration, and a small single footprint. The split design can effectively avoid the influence of motor vibration on the life of the pipe during the test process, and the embodiment of the present invention adopts a modular cycle test system, and the number of samples under a single test of multiple parameters is large, the test process is efficient, and the evaluation cycle is greatly shortened.

[0025] Embodiment 1: See also Figure 1-Figure 12 , which discloses an oxidation resistance test system 1 for a pipe, the oxidation resistance test system 1 comprises an oxidation resistance test device 2; the oxidation resistance test device 2 comprises a first box body 3, a second box body 4, a water pump device 5 and a test assembly 6; the water pump device 5 is arranged in the first box body 3, the test assembly 6 is arranged in the second box body 4, the first box body 3 and the second box body 4 are arranged separately, and the first box body 3 and the second box body 4 are both provided with a connecting hole 31; The test assembly 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 a test fixture set at each test point on the connecting pipeline 7. The test fixture is used to clamp the corresponding sample test tube and connect the sample test tube 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 the water inlet pipe to extract the liquid in the liquid storage tank 61 to the water outlet end of the water pump device 5, and the liquid is connected to the return water end of the liquid storage tank 61 through the water outlet pipe and the connecting pipeline 7 in turn to form a circulation loop. The liquid storage tank 61 also includes a dosing port for dosing.

[0026] In the embodiment of the present invention, the water pump device 5 is connected to the liquid storage tank 61 and the connecting pipeline 7 via a hose, and the hose here can pass through the corresponding connecting hole.

[0027] In the embodiment of the present invention, the first box body 3 and the second box body 4 are separately arranged, so that the water pump device 5 and the test component 6 are arranged in different boxes, respectively, which is convenient for independent maintenance, repair and management of different functional modules. At the same time, the separate setting can reduce mutual interference, such as the impact of vibration and noise generated by the water pump device 5 on the test component 6 when it is working, and improve the accuracy and stability of the test. Specifically, an exhaust fan 11 is also arranged in the first box body 3 to adjust the temperature in the first box body 3. Shutters or acrylic doors are also arranged on the side of the first box body 3.

[0028] like Figure 3 As shown, when carrying out specific design, the bottom of the second box 4 can also be recessed inward to form a corresponding support frame, and the formed support frame can support the heat preservation mechanism. The above design not only supports the heat preservation mechanism, but also can reduce the space of the second box, making the temperature of the space inside more controllable; it can also reduce the length of the liquid storage tank emptying pipeline. Figure 3 As shown, the upper platform of the support frame has a certain inclination angle. Figure 3 The dotted line in the figure is a horizontal line. By setting the above-mentioned inclination angle, the heat preservation unit also has an inclination angle when it is set on the supporting platform. Therefore, when a water pipe bursts, the water will flow to the corresponding drain outlet according to the inclination angle to eliminate the adverse effects on the heating wire in the heat preservation unit.

[0029] In order to avoid the influence of motor vibration on the life of pipes in the embodiment of the present invention, the system adopts two major module designs, namely, the water pump system and the test system, which are connected by shock-absorbing materials and a polytetrafluoroethylene-lined hose in the middle. Shock-absorbing materials are also added to the water pump support. The water pump module is fixed to the ground during use. The specific system mainly consists of the following modules: chlorine water supply system (including online ORP system, chlorine measurement system, temperature sensor control system), pump body and pressure control and flow regulation system, sample tube exposure unit including loop system, split insulation system, sensor and control system, box body and panel operation.

[0030] The pumping end of the water pump device 5 of the embodiment of the present invention is connected to the water outlet of the liquid storage tank 61 through the 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 connected to the return water end of the liquid storage tank 61 through the water outlet pipe and the connecting pipe 7 to form a circulation loop. This design can ensure that the test liquid circulates continuously in the system, so that the sample test tube is always in a state where liquid flows through, simulating the situation of the pipe in actual use in contact with the liquid, so as to more realistically test the anti-oxidation performance of the pipe. In addition, the circulation can make the composition and temperature of the liquid more uniform, further improving the reliability of the test results.

[0031] The liquid storage tank 61 of the embodiment of the present invention is provided with a dosing port for dosing, which is convenient for adding different agents into the liquid storage tank 61 during the test process to simulate the influence of different working environments and medium components on the antioxidant performance of the pipe, increase the flexibility and adaptability of the test system, and can test the antioxidant capacity of the pipe under a variety of different conditions. The heat preservation unit 62 is used to insulate the sample tube test unit 63, and can maintain the stability of the ambient temperature around the sample test tube, because the temperature has a great influence on the antioxidant performance of the pipe, and the stable temperature environment can make the test results more comparable and accurate, and eliminate the interference of temperature changes on the test results. The sample tube test unit 63 includes a connecting pipeline 7 and a test fixture set at each test point on the connecting pipeline 7, and the test fixture is used to clamp the corresponding sample test tube and connect the sample test tube with the connecting pipeline 7. This structural design can test multiple sample test tubes at the same time, improve the test efficiency, and through the fixation of the test fixture, the reliable connection between the sample test tube and the connecting pipeline 7 is guaranteed, ensuring that the liquid can smoothly flow through the sample test tube for antioxidant testing.

[0032] More preferably, a shock absorbing layer 8 is provided between the first box body 3 and the second box body 4; 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.

[0033] The shock-absorbing layer 8 of the embodiment of the present invention can effectively block the vibration generated by the water pump device 5 and the like in the first box body 3 from being transmitted to the second box body 4. Since the second box body 4 is provided with a test assembly 6, especially components such as the sample tube test unit 63 that are more sensitive to the test environment, vibration may affect the accuracy of the test, such as causing the test fixture to loosen, the liquid flow state to be unstable, etc. By providing the shock-absorbing layer 8, this vibration interference is reduced, making the test environment in the second box body 4 more stable, thereby ensuring the reliability and accuracy of the test results. This solution helps to protect the structural integrity of the box body and the equipment inside the box body by reducing the vibration transmission between the two boxes. Long-term vibration may cause problems such as loose connection parts of the box body or equipment and wear of components, and the shock-absorbing layer 8 can alleviate these adverse effects and extend the service life of the entire antioxidant test system 1.

[0034] Since the scheme of the present application adopts a discrete method, each set of test devices corresponds to a water pump during the specific implementation, so when making a selection, a relatively small water pump can be selected to achieve the corresponding pressure supply; and since the series connection is adopted, the overall test environment consistency is better, and it is easy to control the pressure fluctuation. Some existing parallel water supply methods require a relatively high-power water pump. Although it can achieve centralized and unified water supply, due to the parallel connection, if the pressure of one of the pipelines is adjusted, it is easy to affect the pressure change of other pipelines, thereby causing deviations in the consistency of the overall measurement; and a relatively high-power water pump will also produce greater vibrations, which will add more uncertainty factors to the test system, thereby affecting the accuracy of the final result.

[0035] The rubber shock-absorbing pad or air spring airbag of the embodiment of the present invention has good elasticity and buffering performance, and can effectively absorb the vibration energy generated by the water pump device 5 when it is working. During the operation of the water pump, vibration will inevitably be generated due to mechanical movement. These shock-absorbing mechanisms can reduce the impact of vibration on the first box body 3, reduce the risk of fatigue damage to 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-absorbing mechanism, the vibration reaction force on the water pump itself is reduced, which helps to protect the internal parts of the water pump and reduce the probability of loosening and wear of parts caused by vibration, thereby extending the service life of the water pump device 5 and reducing the maintenance cost of the equipment. Since the shock-absorbing mechanism reduces the impact 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 no unnecessary fluctuations will be generated due to the vibration of the water pump. This is very important for the oxidation resistance test of the pipe in the sample tube test unit 63. The stable liquid flow state can more accurately simulate the actual use environment, thereby improving the accuracy and credibility of the test results.

[0036] The direction of water flow in this application is different from the conventional one. In conventional tests, the water tank, water pump and test system are generally arranged in a straight water flow order. However, in this application, since the water pump is arranged in front of the water tank, the overall structure will be different from the existing scheme. And since the liquid storage tank 61 (that is, 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 high operating frequency and prone to failure in the system. In this scheme, the connection method and split design of the water pump with the water tank make maintenance easier. When the water pump needs to be repaired or replaced, the maintenance personnel can operate directly at the connection between the water pump and the water tank, without the need to pass through the complex test system pipeline to contact the water pump as in the traditional layout. This greatly shortens the maintenance time, reduces the difficulty of maintenance, reduces the potential impact of maintenance work on the test system, and improves the operating efficiency and reliability of the entire system.

[0037] 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 between 20 mm and 60 mm; And / or, the liquid storage tank 61 is a stainless steel lined polytetrafluoroethylene pressure tank. The outer surface of the liquid storage tank is provided with a heat insulation layer; the first box body and the second box body are provided with a heat insulation layer; wherein the heat insulation layer is an ultra-high performance heat insulation layer, which can achieve a good heat insulation effect and a scald prevention function.

[0038] The polyurethane material of the embodiment of the present invention has good elasticity and damping properties, and can effectively absorb and disperse vibration energy. The polyurethane shock-absorbing layer 8 is arranged between the first box 3 and the second box 4, which can significantly reduce the transmission of vibration generated by the water pump device 5 during operation to the second box 4. This is crucial for protecting the test assembly 6 in the second box 4, and can prevent the test fixture from loosening and the sample test tube from shifting due to vibration, ensuring the stable flow of liquid during the test, thereby improving the accuracy of the test results of the pipe oxidation resistance.

[0039] The stainless steel shell of the liquid storage tank 61 of the embodiment of the present invention gives the liquid storage tank 61 a high mechanical strength, can withstand a certain internal pressure, and ensure 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 allows the liquid storage tank 61 to not only store ordinary test liquids, but also safely accommodate corrosive agents, meet the diverse needs of pipe oxidation resistance testing, and will not affect the service life of the liquid storage tank 61 and the accuracy of the test results due to liquid corrosion. 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 higher pressure generated when the water pump device 5 pumps water, or the dynamic pressure changes of the liquid circulation during the operation of the test system, the liquid storage tank 61 can work stably, maintain the storage and supply of the internal liquid, provide a reliable source of liquid for the test component 6, and ensure the normal operation of the test system.

[0040] 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 cavity 624, the test cavity 624 is used to accommodate 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 cavity, and the temperature is detected by the temperature measuring component 623; The heating assembly 622 includes a heat insulating layer 622a, a heat conducting pipe 622b and a heat conducting layer, wherein the heat conducting layer includes a first heat conducting layer 622c and a second heat conducting layer 622d which are stacked in sequence, one side of the heat insulating layer 622a is fixed to the inner surface of the supporting frame, the other side of the heat insulating layer 622a is provided with a groove, the heat conducting pipe 622b is nested in the groove, the heating wire 622e is provided in the heat conducting pipe 622b, and the heating wire 622e is electrically connected to the corresponding control device, and the heat conducting layer is covered on the heat insulating layer 622a and completely covers the heat conducting pipe 622b. The depth of the groove here is any value between 5 and 10 mm.

[0041] The support frame 621 is a stainless steel support frame, and an outer insulation layer is also provided on the outer side of the stainless steel support frame; and a drainage port is provided on the bottom surface of the stainless steel support frame; 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 in the vertical direction decreases from the middle to both sides, 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 5-12 mm. The uniformly ordered through holes make the temperature in the cavity more uniform, avoiding local overheating that affects the final test effect.

[0042] When carrying out specific implementation, the outer insulation layer here can use polyurethane foam or aerogel insulation material. The support frame 621 here is a rectangular structure, and the temperature measurement cavity formed by it can be a through design or have only one opening; in the embodiment of the present invention, a single opening is adopted, which can achieve better 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 insulation 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, so that the heat generated by the heating wire 622e can be more fully transferred to the heat-conducting layer, thereby uniformly heating the test cavity 624. The heat-conducting thin-layer glazed ceramic plate designed in the embodiment of the present invention is slightly convex in the middle and inverted on the surface of the insulation layer 622a, thereby reducing the influence of water on the heating wire. The heating component 622 here is a ceramic heating component.

[0043] Specifically, the multilayer ceramic assembly of the embodiment of the present invention is integrally embedded in the upper and lower panels of the stainless steel box-type shell. A lock is installed on the proximal surface of the shell to facilitate the inward pipe replacement operation, and the distal end is fixedly arranged; the left end of the shell is open, the right end is fixedly closed and has a liquid flow port at the bottom; the multilayer ceramic layer components on the upper and lower surfaces inside the shell are symmetrically distributed, and the ceramic layer components are respectively composed of four layers of ceramic components with different thermal effects. The high and low density microporous insulation foamed ceramic plates are close to the stainless steel plate layer, and grooves are provided in the ceramic plates. The heating wires are connected in series with embedded S-shaped high thermal conductivity through-hole porcelain pipes and are arranged therein respectively. The heating wires are connected in parallel with an external power supply and a PID control module. The upper buckle plate composed of a uniform pore high thermal conductivity foamed ceramic plate and a high thermal conductivity thin layer glazed ceramic plate is integrally buckled on the lower buckle plate embedded with the heating wire assembly. The middle of the buckle plate surface is slightly convex with a smooth circular prism to prevent liquid from remaining on the surface or entering the heating wire assembly to form a short circuit, and the liquid is discharged through the liquid flow port at the right end.

[0044] The insulation shell not only plays a role in heat preservation, but also plays a certain role in physical protection for the sample tube test unit 63. It can prevent external mechanical collisions, dust, moisture and other factors from causing damage or interference to the sample tube test unit 63, ensuring the normal operation of the test assembly 6 and the accuracy of the test data. At the same time, the existence of the insulation shell can reduce the impact of external environmental factors on the test process, and provide a relatively stable and independent test space for the sample tube test unit 63. The test cavity 624 is specifically used to accommodate the sample tube test unit 63, making the layout of the test unit in the insulation shell more reasonable and orderly. Such a design helps to maintain a uniform distribution of heat flow in the test cavity 624, avoid local temperature differences, and further improve the stability and consistency of the test environment. Uniform temperature distribution is very important for ensuring the reliability and repeatability of test results, and can make the results between different test batches more comparable.

[0045] More preferably, the number of the oxidation resistance test devices 2 is multiple, and the multiple oxidation resistance test devices 2 are stacked up and down to form an integrated test system; a heat preservation layer is also provided between the multiple oxidation resistance test devices 2 or a heat preservation mechanism is provided on the inner side of the second box 4; In order to save floor space, the entire test system adopts an integrated box design in the embodiment of the present invention, which is divided into two layers, two units on each layer, and a total of four units. Each unit is insulated from each other. A single unit is arranged along the test tube. The two sides are provided with a hot water insulation system. The bottom is connected. The upper and lower sides are lined with insulation layers. The hot water insulation system is controlled by a color TV heating. The temperature is PID controlled to ensure that the temperature fluctuation of the test unit cavity meets the test requirements. In the specific implementation, the number of antioxidant test devices 2 can also be 4, so that a set of systems can meet more diverse requirements.

[0046] The test fixture comprises a connecting flange, which is used to clamp the sample tube, and the flange gasket at the connecting flange is made of polytetrafluoroethylene.

[0047] In the embodiment of the present invention, multiple oxidation resistance test devices 2 are stacked up and down, which can integrate more test units in a limited space, greatly improving the utilization of space. For laboratories or test sites with limited space, this integrated stacking design can significantly increase the number of test devices without increasing the floor space, improve the overall test efficiency, and meet the needs of large-scale pipe oxidation resistance testing.

[0048] Multiple test devices in a stacked arrangement form an integrated test system, which facilitates centralized management and control of the entire system. Test parameters can be set uniformly, the test process can be monitored, and test data can be collected, reducing the complexity and workload of operations. For example, the temperature, flow, pressure and other parameters of all stacked test devices can be set and adjusted through a central control system, which improves the convenience and consistency of the test. 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 purchase cost and operating cost of the equipment. In addition, due to the efficient use of space, the costs of site rental and other aspects are also reduced, which improves the economy of the test system.

[0049] Providing a heat preservation layer between multiple oxidation resistance test devices 2 or providing a heat preservation mechanism on the inner side of the second box 4 can effectively reduce the heat exchange between the test devices and between the test device and the external environment, and reduce heat loss. This helps to maintain the temperature inside each test device stable, 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 oxidation resistance test of the pipe, a stable temperature environment can more realistically simulate the actual use conditions of the pipe.

[0050] The connecting flange of the embodiment of the present invention is used to clamp the sample tube, which can provide a stable and reliable fixing effect, ensure that the sample tube will not loosen or move during the test, and ensure that the liquid can smoothly pass through the sample tube for oxidation resistance testing. This reliable clamping method helps to improve the accuracy and repeatability of the test and avoid test errors caused by loose fixation of the sample tube. The flange gasket at the connecting flange is made of polytetrafluoroethylene, which has extremely excellent chemical stability and can resist corrosion from almost all chemical substances. In the oxidation resistance test of the pipe, the test liquid may be corrosive to a certain extent. The polytetrafluoroethylene flange gasket can effectively prevent the leakage of the test liquid and protect the test device from corrosion. At the same time, it also ensures the integrity of the test liquid components and ensures that the test results can truly reflect the oxidation resistance of the pipe.

[0051] More preferably, the test system further comprises a control device 9, a first regulating valve 51 electrically connected to the control device 9 is provided on the water inlet pipe, 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 return water end of the liquid storage tank 61; The liquid storage tank 61 is provided with a detection end, a sleeve is installed at the detection end, and a sensor assembly is provided at the bottom of the sleeve that is in communication with the control device 9. The sensor assembly is used to obtain sensor information of the liquid to be detected extracted 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 also provided with a first pressure sensor and a third heater that are electrically connected to the control device 9. The liquid heater is installed on the liquid storage tank 61 through the heating end; Figure 7 As shown, the liquid storage tank 61 includes a chlorination port 611, a heating end 612, a water quality detection end 613, an emptying port 614, a pressure detection end 615, a water outlet 616, a water inlet 617, and a water return port 618; The connecting pipeline 7 is provided with a second pressure sensor and a flow sensor electrically connected to the control device 9 , and the pressure signal and the flow signal in the connecting pipeline 7 are monitored by the second pressure sensor and the flow sensor.

[0052] In the embodiment of the present invention, a first regulating valve 51 electrically connected to the control device 9 is arranged on the water inlet pipe, a second regulating valve 52 is arranged on the water outlet pipe, and a third regulating valve 71 is arranged on the return water 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 of these regulating valves according to the preset test parameters and actual needs. For example, when simulating the oxidation resistance test of pipes under different working conditions, the flow rate can be flexibly adjusted to more realistically reflect the oxidation resistance of the pipes in the actual use environment, thereby improving the accuracy and reliability of the test results. By controlling the opening of the regulating valve, not only the flow rate can be adjusted, but also the pressure stability in the system can be maintained. When the system pressure fluctuates, the control device 9 can adjust the regulating valve in time to restore the pressure to the set range, avoid damage to the test assembly 6 and the sample tube due to unstable pressure, and ensure the safety and stability of the test process.

[0053] In the embodiment of the present invention, the host PLC adopts Siemens S7-1200 series as the central control element, and the field control is configured with a 12-inch touch screen and an Internet of Things module as the configuration monitoring system and the human-machine interface. The user can monitor the operation of the system through a mobile phone or a remote computer, and the remote computer can store and analyze the operation data in charts. When designing, the touch screen can be set on the side for the convenience of users to use for unified monitoring and management. When implementing it specifically, it uses the touch display module 91 of the control device 9 to perform unified monitoring and management, and also uses the ORP display module 92 and the chlorine measurement display module 93 to display the corresponding information.

[0054] The main control system of the embodiment of the present invention controls the chlorine water supply system (including online ORP system, chlorine measurement system, temperature sensor control system), centrifugal pump motor inverter control and pressure control and flow regulation system, split insulation system, sensor and control system, centrifugal pump motor, heating and insulation system, chlorine water supply system, alarm system and other digital output (DO) modules to realize the start and stop and alarm of the actuator. ORP value control method: detect the pipeline water flow and ORP value, and then control the valve opening size of the chlorinated water to control the ORP value. If the ORP value is too high, the valve opening is reduced, and if the ORP value is too low, the valve opening is increased.

[0055] Since the system is a pressurized closed system, in order to obtain the temperature and redox potential (ORP) values ​​online, a special pressure-resistant and impact-resistant contact probe needs to be selected. In the embodiment of the present invention, a multi-way valve sleeve and a pulse 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, redox potential (ORP) and chlorine water concentration sensor probes are placed at the bottom of the sleeve. Every 1 to 4 hours, the multi-way valve connects the sleeve and the water tank and draws the chlorine water in the water tank into the sleeve. The micro pump draws 5 to 10 ml of chlorine water, and then the multi-way valve is turned to disconnect the sleeve from the water tank. At the same time, the sensor probe is placed under the liquid surface, and the relevant parameters are tested and uploaded. After 10 to 15 seconds, the multi-way valve is turned again, and the micro pump reversely draws the liquid in the sleeve back into the water tank. A pulse cycle ends. When the parameters deviate, the experimenter will be reminded through the terminal or on-site alarm. This is repeated. Every 12 to 48 pulse cycles stay for 1 to 5 minutes, and the chlorine water in the sleeve is extracted for sample analysis.

[0056] A trace amount of chlorine water is exported through a multi-way valve, and the temperature, redox potential (ORP), chlorine water concentration and other values ​​are measured under normal pressure conditions. After the test is completed, the trace liquid is pumped back to the water tank. Since the chlorine water dynamic system is a sealed system, the pressure and temperature are relatively stable, so a pulse test can be used, and the pulse period can be set to 0.5~5h.

[0057] Test component 6: flange connection, ensure that the pipeline sample is stably fixed during the experiment to avoid external disturbance. The length of the sample tube is 300~500mm, the temperature fluctuation inside the tube does not exceed ±0.1℃, the temperature difference between the inside and outside of the tube does not exceed ±2.5℃, the chlorine water chlorine deviation inside the tube does not exceed ±0.2ppm, and the pH value deviation does not exceed ±0.2ppm; the delivery pipeline adopts a symmetrical loop layout, with 2~5 sections per channel (4~10 sections in the loop) to ensure the accuracy of data prediction and sample extraction during the experiment.

[0058] When extracting a single-section tube sample during the process, a stainless steel tube lined with polytetrafluoroethylene or a pure polytetrafluoroethylene tube of the same size and specification must be used to fill the position. The sample tube interface is connected by a flange, and the flange gasket is made of polytetrafluoroethylene to avoid leakage caused by aging of chlorine water, which may distort the life prediction.

[0059] 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 sensor information such as the temperature, redox potential and chlorine water concentration of the liquid to be tested extracted from the liquid storage tank 61 in real time. By monitoring these parameters, the state of the test liquid can be fully understood, and accurate data support can be provided for evaluating the antioxidant performance of the pipe in a specific liquid environment. The sensor assembly is connected to the control device 9 for communication, and the acquired sensor information is transmitted to the control device 9 in real time. The control device 9 can adjust the test conditions in time 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 the 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 a certain protection for the sensor assembly, preventing the sensor from being damaged by 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.

[0060] In the embodiment of the present invention, the liquid storage tank 61 is provided with a first pressure sensor electrically connected to the control device 9, which can monitor the pressure 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 sounding an alarm, to prevent the liquid storage tank 61 from being damaged due to excessive pressure, thereby ensuring 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 the liquid in the liquid storage tank 61, and keep the liquid temperature within the set range. Stable liquid temperature is crucial for the oxidation resistance test of pipes, which can avoid test result errors caused by temperature fluctuations and improve the accuracy of the test.

[0061] 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; The control device 9 also includes a communication module, through which the acquired on-site data is transmitted to a background server, and the background server transmits the on-site data to a corresponding intelligent terminal.

[0062] The IoT module comes with background software, which transmits field data to the background server through the IoT network. The background server transmits data to mobile phones, pads, remote computers and other terminals through the built-in WIFI and mobile data modules. Mobile phones, pads, remote computers and other terminals are mainly used to monitor and control system operation. When the system is abnormal, the background service notifies relevant personnel through WeChat or SMS, or directly calls relevant personnel to notify. The remote computer is mainly used to collect and analyze test data. The background server automatically saves the test data, and can transmit the data to the computer, and then display it in the form of curve charts, data reports, etc.

[0063] After the equipment is connected, it is necessary to define the internal and external variables of the database, such as the maximum value of the fluid temperature, the switch signal of the solenoid valve, etc.; the internal variables are used to store system content, such as the test running time, the branch pipeline pressure, etc. Based on the modular hardware and IoT database definition of PLC, the test system consists of four control modules: pipeline control, alarm system, pump machine 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, the opening and closing of each branch pipeline, and the setting of the main pipeline force and water tank temperature can be realized, and the information of each sensor is displayed at the same time, including the air bath temperature, water tank temperature, branch pipeline pressure and flow, main pipeline pressure and flow, and sample test time. The monitoring of these parameters helps the normal operation of the chlorine oxidation resistance test of PE-HD pipes, and the alarm system will be triggered if a problem occurs. When the test is actually running, the water tank temperature and the air bath temperature both reach the set value, and each branch pipeline basically reaches the set branch pipeline pressure. The pipe material in the embodiment of the present invention refers to a metal water supply pipeline or a polyolefin water supply pipeline.

[0064] The frequency converter in the water pump device 5 of the embodiment of the present invention is electrically connected to the control device 9, and 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, the precise control of the water pump output flow rate can be achieved. In the oxidation resistance test of pipes, different test scenarios may require different liquid flow rates. This precise flow regulation function can more realistically simulate the water flow conditions of pipes in actual use environments and improve the accuracy and reliability of 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, so that the test system can better adapt to various test requirements and improve the flexibility and efficiency of the test.

[0065] The communication module of the control device 9 of the embodiment of the present invention can transmit the acquired field data (such as temperature, pressure, flow, liquid composition and other parameters) to the background server in real time. The tester can connect to the background server through the corresponding smart terminal (such as mobile phone, tablet, computer, etc.) to view the operating status and test data of the test system anytime and anywhere. This allows the tester to understand the test progress and equipment operation status in a timely manner without going to the test site in person, realize remote monitoring and management, and improve work efficiency.

[0066] In the embodiment of the present invention, based on the field data transmitted in real time, the background server can set corresponding thresholds and algorithms to monitor and evaluate the operating status of the test system in real time. When data anomalies are found or potential faults occur in the equipment, the background server can promptly issue early warning information and transmit the information to the intelligent terminal. Testers can take timely measures based on the early warning information to avoid the occurrence or expansion of faults, ensure the normal operation of the test system, and reduce test interruptions and equipment damage caused by faults. Transmitting field data to the intelligent terminal through the background server facilitates data sharing and collaboration between different departments and personnel. For example, R&D personnel, testers, and managers can obtain test data at the same time, jointly participate in the discussion and optimization of test plans, and improve the team's collaboration efficiency and work results.

[0067] The test system of the embodiment of the present invention has the following advantages: First, the improved test system adopts a modular combination box-type shock-absorbing design, which has a simple structure, high integration, and a small footprint. It avoids the influence of motor vibration on the life of the pipe. The modular cycle test system has a large number of samples under multiple parameters in a single test, and the test process is efficient, which greatly shortens the evaluation cycle; second, 316L stainless steel polytetrafluoroethylene is used as the lining in the connecting pipe, the joint uses a polytetrafluoroethylene pad, and the replacement pipe uses a polytetrafluoroethylene tube. The system has a long service life, good corrosion resistance and sealing performance, and irrelevant indicators are not easy to dissolve, avoiding test failure or excessive deviation of test results; third, a multi-way valve is used to cope with harsh test conditions, the on-line test instrument has good sensor adaptability, and the instrument probe is not easy to be damaged or the data is accurate; fourth, the system automatic control system has good coordination, small redundancy, good consistency in the test process, the life extrapolation model has high accuracy in predicting the life of the sample, the operation process is energy-saving and the test cost is low.

[0068] 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, the integration is high, and the unit footprint is small. The split design can effectively avoid the influence of motor vibration on the life of the pipe during the test process, and the embodiment of the present invention adopts a modular cycle test system, a large number of samples under a single test of multiple parameters, high test process efficiency, and greatly shortened The evaluation cycle.

[0069] Embodiment 2: See also Fig.13 , Fig.13 Schematic diagram of the process of testing the oxidation resistance of pipes disclosed in the embodiment of the present invention. Fig.13 As shown, the oxidation resistance test method of the pipe includes: 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; 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; 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; 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.

[0070] 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.

[0071] 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.

[0072] Obtain the temperature sensing information at the corresponding heating unit in the test system and match it with the target temperature control conditions. The water pump system is started only after the target temperature control conditions are reached, which ensures that the test is carried out under the correct temperature environment. Because temperature has a significant impact on the antioxidant properties of pipes, accurate temperature conditions can make the test results more truly reflect the actual antioxidant capacity of the pipes and reduce the test errors caused by inaccurate temperature. When the temperature reaches the standard, start the water pump system to pump the liquid in the chlorine water supply system to the corresponding connecting pipes and sample test tubes to realize the circulation loop. A stable circulation loop is the basis for conducting antioxidant testing of pipes. It can ensure that the test liquid continues to flow around the pipes, simulate the actual use environment, and make the pipes fully contact with the test liquid, so as to more accurately evaluate the antioxidant properties of the pipes.

[0073] Before the experiment begins, pump chlorine water of 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, enter the target experimental parameters of each experimental unit in the control system and make initial adjustments. Start the heating system and wait for each unit to reach the target temperature control conditions (chlorine water temperature, hot water insulation system temperature, cavity temperature of each unit, 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 fluctuation, flow rate and fluctuation), and record the start time of the experiment. Manually check the operating temperature, pressure, ORP and chlorine concentration and other parameters, and the touch screen will display in real time to monitor whether they deviate from the target value range. Synchronously check the synchronization of the data terminal data and the frequency data. After stabilization, enter the actual measurement stage. In the test stage, the control system regularly records the target parameters and sends them to the data terminal. When the operation reaches a certain time H, stop the machine to remove the sample tube, replace the pre-prepared replacement tube, close the box system, continue to operate as mentioned above, and send the sample tube for testing. This is repeated many times until the end of the experiment.

[0074] In the embodiment of the present invention, whether the target operating state is reached is determined based on the pressure signal and flow rate signal at the connecting pipeline, and the test phase is determined to be entered only when the pressure signal and flow rate signal meet the set requirements. This ensures that the test system is tested under stable working conditions, avoiding inaccurate test results or failures during the test due to 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 changes in the antioxidant properties of the pipe within a certain period of time. Accurate time records can make the test results more traceable and comparable, and facilitate subsequent analysis and research on the test data.

[0075] During the test phase, the test temperature signal detected by the temperature sensor at the connection pipeline is obtained, and the working state of the heater at the liquid storage tank is adjusted according to the signal and the pipeline transmission parameters. This can monitor the temperature changes during the test in real time and make timely adjustments to ensure that the test temperature always remains near the target temperature control conditions, thereby 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 transmission parameters, the temperature environment stability of the entire test system can be optimized. Even if there are some external interferences or internal changes in the system (such as changes in liquid flow, etc.) during the test, the temperature can be adjusted in time to maintain stable test conditions, thereby more accurately evaluating the antioxidant properties of the pipe.

[0076] More preferably, the pipeline transport parameters include the distance from the water outlet 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 of the water pump device, and the distance from the water outlet of the water pump device to the first sample test tube; like Fig.14 As shown, the testing method also includes: Acquire a first environmental parameter in the first box and a second environmental parameter in the second box; The step of adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transmission parameter includes: S1041: determining the heat loss of each conveying section according to the first environmental parameter in the first box, the second environmental parameter in the second box, the distance from the water outlet 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 of the water pump device, and the distance from the water outlet of the water pump device to the first sample test tube; S1042: determining an output temperature parameter at the liquid storage tank according to the test temperature signal and the heat loss of each conveying section, and generating 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; And / or, the testing method further comprises: Record target detection parameters regularly according to the set method, wherein the target detection parameters include temperature information, redox potential information, and chlorine water concentration information; And / or, the testing method further comprises: Acquire 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; Dynamic adjustment parameters of each heating area are generated according to the temperature monitoring information, the temperature difference information and the set test temperature, and the power parameters of the heating components of each heating area are adjusted according to the dynamic adjustment parameters.

[0077] The embodiment of the present invention can accurately calculate the heat loss of each conveying section by considering the pipeline conveying parameters such as the distance from the water outlet of the liquid storage tank to each key position of the water pump device, as well as the environmental parameters in the first and second boxes. Different pipeline lengths and ambient temperatures will cause different heat losses of the liquid during the transportation process. 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 due to heat loss, and thus improves the accuracy of the test results of the oxidation resistance of the pipe. The environmental parameters here are specifically ambient temperature parameters.

[0078] The embodiment of the present invention determines the output temperature parameters at the liquid storage tank based on the test temperature signal and the calculated heat loss, and further generates temperature adjustment parameters to control the working state of the heater. This dynamic control method can respond in real time to temperature fluctuations caused by factors such as environmental changes and pipeline heat loss during the test process. For example, when the ambient temperature decreases and the heat loss increases, the heater can automatically increase the output temperature to ensure that the test liquid is still at a suitable temperature when it reaches the sample tube, maintain a stable test environment, and improve the reliability and stability of the test.

[0079] The embodiment of the present invention records target detection parameters such as temperature, redox potential, chlorine water concentration, etc. in a set manner at regular intervals, and can comprehensively record key data in the test process. These data not only reflect the current state of the test, but also form a data sequence through long-term recording, which is convenient for subsequent trend analysis. By analyzing the changing trends of these parameters over time, we can have an in-depth understanding of the performance change rules of the pipe during the antioxidant test process, provide richer and more comprehensive data support for evaluating the antioxidant performance of the pipe, and improve the scientific nature and reference value of the test results. Complete target detection parameter records are helpful for tracing problems when abnormal results occur in the test. If it is found that the test results of the antioxidant performance of the pipe do not meet expectations, the factors that may cause the problem can be found by reviewing the recorded parameters, such as abnormal temperature fluctuations, excessive changes in the redox potential, etc. This helps to promptly discover problems in the test process and take corresponding measures to improve them, thereby improving the quality and accuracy of the test.

[0080] The embodiment of the present invention obtains the temperature monitoring information detected by the temperature sensor component at the insulation unit, and calculates the temperature difference between the sensor position and the object position in combination with the heat transfer model, so as to have a more detailed understanding of the temperature distribution in the insulation unit. The temperature at different positions may differ due to the heat transfer process. By accurately grasping these differences, dynamic adjustment parameters of each heating area are generated according to the set test temperature. This enables the heating component to finely control the temperature requirements of different areas, ensure that the temperature in the entire insulation unit is uniform and meets the test requirements, and provide a stable and accurate temperature environment for the oxidation resistance test of the pipe. The power parameters of the heating component are adjusted according to the dynamic adjustment parameters to avoid 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, energy consumption is minimized, the energy utilization efficiency of the entire test system is improved, the requirements of energy conservation and emission reduction are met, and the test cost is also reduced.

[0081] During the specific implementation, since the heat preservation treatment needs to be carried out for a long time, the operation load control mode is also carried out to reduce the operation load control of the whole machine; the test method also includes: Obtaining a current first operating load of the heating component; Inputting the first operating load and the temperature change duration into a predetermined optimization analysis model to obtain an optimization analysis result, wherein the optimization analysis result includes a second operating load, which is an operating load required to be achieved by the heating component; According to the second operating load, temperature control optimization parameters of the heating component are generated.

[0082] The embodiment of the present invention collects the current operating load data of the heating component (such as the heater at the liquid storage tank, the heating component in the insulation unit, etc.) in real time through a sensor or a monitoring system, that is, the first operating load. This data reflects the working intensity of the heating component at the moment. For example, for an electric heater, it may be reflected in the current current and voltage values, and then converted into actual power.

[0083] The embodiment of the present invention constructs an optimization analysis model in advance through a large amount of experimental data, theoretical analysis and machine learning algorithms. The model takes the first operating load and temperature change duration of the heating component as input parameters. The temperature change duration refers to the time it takes for the water temperature to reach a certain state from the start of heating to the current moment. The model analyzes and processes the input data based on the physical heat transfer principles, equipment characteristic parameters and empirical laws formed by a large amount of past experimental data. For example, the model may include thermal efficiency calculation modules for different types of heating components, algorithms for adjusting heating requirements based on the cumulative effect of time, etc. Through complex calculations, the optimization analysis results are 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.

[0084] Traditional temperature control methods are often based on simple temperature feedback, such as full power heating when the temperature is lower than the set value, and stopping heating after reaching the set value. This method is prone to large temperature fluctuations. This solution comprehensively considers the current operating load of the heating component and the duration of temperature change, uses the optimization analysis model to obtain an accurate second operating load, and generates corresponding control parameters. This enables the heating component to adjust the heating power in real time and finely according to the actual situation, avoid temperature overshoot or underadjustment, always keep the test environment temperature stable within the target range, and improve the accuracy of the pipe oxidation resistance test results, because even a small temperature fluctuation may affect the oxidation resistance test of the pipe. This solution dynamically adjusts the operating load of the heating component based on the optimization analysis results. In the early stage of water temperature rise, the heating power can be appropriately increased to quickly heat up and reduce the heating time; when the water temperature is close to the target value, the heating power is reduced to maintain 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.

[0085] The optimization analysis model of this solution can flexibly calculate the second operating load that adapts to various test scenarios based on the input heating component operating load and temperature change duration. 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 requirements, thereby enhancing the versatility and adaptability of the test system. The heating component is prone to shortening its service life due to current shocks, mechanical wear and other problems under frequent and large-scale power switching. This solution uses the optimization analysis model to smoothly adjust the operating load of the heating component and avoid drastic changes in power. For example, it avoids frequent starts and stops in traditional control methods, reduces damage to heating elements, circuits and related mechanical components, thereby extending the service life of the heating component and the entire test equipment, reducing equipment maintenance and replacement costs, and improving the stability and reliability of the test system.

[0086] When selecting a specific model, the neural network model in machine learning is used as the basic architecture of the optimization analysis model. Specifically, the multi-layer perceptron (MLP) can be selected. MLP consists of an input layer, multiple hidden layers, and an output layer. Its powerful nonlinear mapping ability can effectively handle the complex relationship between input data and output operating load. The input layer receives the preprocessed first operating load and temperature change duration data, and the output layer outputs the optimization analysis results, that is, the second operating load.

[0087] The MLP model is trained using the cleaned and organized 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 the neurons in each layer) so that the model can learn the inherent laws 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 model's predicted value and the true value) continues to decrease, and the loss function on the validation set begins to rise, it means that the model is overfitting, and 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. In order to improve the performance of the model, feature engineering is performed. In addition to the first operating load and temperature change duration that are directly input, some other features can also be derived based on the heat transfer principle and test experience. For example, the rate of change of water temperature (the amount of change in water temperature per unit time) is calculated and input 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.

[0088] Another problem encountered during the specific implementation is how to accurately estimate the time when the test failure occurs. When a rupture occurs, pressure fluctuations will occur. It is impossible for the user to always watch the test device, so it is very important to determine the accurate failure time.

[0089] Install high-precision pressure sensors at the connecting pipes of the test system to collect pressure data in real time at a high-frequency sampling rate (e.g. 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.

[0090] Before the test begins, 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 certain regularity and small fluctuation amplitudes. Based on the normal pressure fluctuation data, establish a pressure fluctuation model. Statistical methods, such as calculating the mean and standard deviation, can be used to describe the distribution of normal pressure fluctuations. Machine learning algorithms, such as Gaussian mixture models (GMM), can also be used to model normal pressure data to better capture its complex distribution characteristics.

[0091] During the test, the collected pressure data is compared 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 (for example, 5-10 consecutive sampling points), it is determined that abnormal pressure fluctuation occurs. For each abnormal pressure fluctuation, the characteristic parameters such as the time of occurrence, fluctuation amplitude, and duration are recorded. Based on historical test data and actual rupture conditions, the relationship between the abnormal pressure fluctuation characteristics and the failure time of the pipe is analyzed. It can be found that as the pipe approaches failure, the frequency and amplitude of abnormal pressure fluctuations may gradually increase.

[0092] Using regression algorithms in machine learning, such as linear regression, polynomial regression, or support vector regression (SVR), the characteristic parameters of abnormal pressure fluctuations (such as the average value, standard deviation, and frequency of fluctuations) are used as input variables, and the time from the first abnormal pressure fluctuation to the actual rupture of the pipe is used as the output variable to train a failure time prediction model. During the real-time monitoring process, once an abnormal pressure fluctuation is detected, its characteristic parameters are input into the trained failure time prediction model to obtain the predicted failure time.

[0093] Embodiment three: See also Fig.15 , Fig.15 Schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention. The electronic device may be a computer, a server, etc. Of course, in certain circumstances, it may also be a smart device such as a mobile phone, a tablet computer, a monitoring terminal, and an image acquisition device with processing functions. Fig.15 As shown, the electronic device may include: A memory 510 storing executable program codes; a processor 520 coupled to the memory 510; The processor 520 calls the executable program code stored in the memory 510 to execute part or all of the steps in the oxidation resistance test method of the pipe in the first embodiment.

[0094] An embodiment of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute part or all of the steps in the method for testing the oxidation resistance of a pipe in the first embodiment.

[0095] The embodiment of the present invention further discloses a computer program product, wherein when the computer program product is run on a computer, the computer is enabled to execute part or all of the steps in the method for testing the oxidation resistance of a pipe in the first embodiment.

[0096] An embodiment of the present invention further discloses an application publishing platform, wherein the application publishing platform is used to publish a computer program product, wherein when the computer program product is run on a computer, the computer executes part or all of the steps in the oxidation resistance testing method of the pipe in embodiment one.

[0097] In various embodiments of the present invention, it should be understood that the size of the serial numbers of the processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0098] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place or distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0099] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0100] 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 this 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 to enable a computer device (which can be a personal computer, server or network device, etc., specifically a processor in a computer device) to perform some or all steps of the method described in each embodiment of the present invention.

[0101] 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.

[0102] A person of ordinary skill in the art may understand that part or all of the steps in the various methods of the embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, the storage medium including a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically-erasable programmable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0103] The above is a detailed introduction to the oxidation resistance test method, system, electronic device and storage medium of the pipe disclosed in the embodiments of the present invention. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pipe oxidation resistance testing system, characterized in that: 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; The test assembly 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 a test fixture arranged at each test point on the connecting pipeline. The test fixture is used to clamp the corresponding sample test tube and connect the sample test tube 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 an inlet pipe to extract the liquid in the liquid storage tank to the outlet end of the water pump device, and the liquid is connected to the return water end of the liquid storage tank through the outlet pipe and the connecting pipeline in turn to form a circulation loop. The liquid storage tank also includes a dosing port for dosing.

2. The oxidation resistance testing system of the pipe according to claim 1, characterized in that: A shock-absorbing layer is provided between the first box body and the second box body; And / or, the water pump device is installed on the first box through a shock absorbing mechanism; the shock absorbing mechanism is a rubber shock absorbing pad or an air spring airbag.

3. The oxidation resistance testing system of the pipe according to claim 2, characterized in that: The shock-absorbing layer is a polyurethane shock-absorbing layer, a rubber shock-absorbing layer, or an intelligent shock-absorbing layer, and the thickness of the polyurethane shock-absorbing layer is any value between 20 mm and 60 mm; And / or, the liquid storage tank is a stainless steel lined polytetrafluoroethylene pressure tank, and an insulation layer is provided on the outer surface of the liquid storage tank; and a heat insulation layer is provided inside the first box body and the second box body.

4. The oxidation resistance testing system of a pipe as claimed in claim 1, characterized in that: The heat preservation unit comprises a heating assembly, an outer heat preservation layer and a support frame, wherein the outer heat preservation layer is arranged on the outer side of the stainless steel support frame, the support frame has a test cavity, and the test cavity is used to accommodate the sample tube test unit, the heating assembly is arranged on the inner surface of the support frame, and the number of the heating assemblies is multiple; The support frame is a stainless steel box-type support frame, and a drainage outlet is arranged on the bottom surface of the stainless steel support frame.

5. The oxidation resistance testing system of the pipe according to claim 4, characterized in that: The heating assembly comprises a heat insulating layer, a heat conducting pipe and a heat conducting layer, the heat conducting layer comprises a first heat conducting layer and a second heat conducting layer which are sequentially stacked, one side of the heat insulating layer is fixed to the inner surface of the supporting frame, the other side of the heat insulating layer is provided with a groove, the heat conducting pipe is nested in the groove, the heating wire is arranged in the heat conducting pipe, 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, and the heat conducting layer is covered on the heat insulating layer and completely covers the heat conducting pipe; The first heat-conducting layer is a heat-conducting foamed ceramic plate, and the second heat-conducting layer is a heat-conducting thin-layer glazed ceramic plate; the height of the heat-conducting thin-layer glazed ceramic plate decreases from the middle to both sides in the vertical direction, and the heat-conducting pipe is an S-shaped heat-conducting pipe.

6. The oxidation resistance testing system of a pipe as claimed in claim 5, characterized in that: There are multiple antioxidant test devices, and the multiple antioxidant test devices are stacked up and down to form an integrated test system; an insulation layer is also provided between the multiple antioxidant test devices or an insulation mechanism is provided on the inner side of the second box; The test fixture comprises a connecting flange, which is used to clamp the sample tube, and the flange gasket at the connecting flange is made of polytetrafluoroethylene.

7. The oxidation resistance testing system of a pipe as claimed in claim 1, characterized in that: The test system further comprises a control device, wherein a first regulating valve electrically connected to the control device is provided on the water inlet pipe, a second regulating valve electrically connected to the control device is provided on the water outlet pipe; and a third regulating valve electrically connected to the control device is provided at the return water 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 is provided at the bottom of the sleeve and is connected to the control device for communication. The sensor assembly is used to obtain the sensing information of the liquid to be detected extracted from the liquid storage tank by the micro pump, and the sensor assembly includes a first temperature sensor, a redox sensor and a chlorine water concentration sensor; the liquid storage tank is also provided with a first pressure sensor and a third heater electrically connected to the control device, and the liquid heater is installed on the liquid storage tank through the heating end; The connecting pipeline is provided with a second pressure sensor and a flow sensor electrically connected to the control device, and the pressure signal and the flow signal in the connecting pipeline are monitored by the second pressure sensor and the flow sensor.

8. The oxidation resistance testing system of a pipe as claimed in claim 7, characterized in that: The water pump device comprises 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; The control device further comprises a communication module, through which the acquired on-site data is transmitted to a background server, and through which the on-site data is transmitted to a corresponding intelligent terminal.

9. A method for testing the oxidation resistance of a pipe, characterized in that: include: 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; Acquire temperature sensing information at the corresponding heating unit in the test system, and match 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 the sample test tube to realize a circulation loop; Determine whether the target operating state is reached according to the received pressure signal and flow rate signal at the connecting pipeline, and determine to enter the test phase when the pressure signal and flow rate signal meet the set requirements, and record the start time; In the test phase, a test temperature signal detected by a temperature sensor arranged 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 parameters.

10. The method for testing the oxidation resistance of a pipe according to claim 9, characterized in that: The pipeline transport parameters include the distance from the water outlet 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 of the water pump device, and the distance from the water outlet of the water pump device to the first sample test tube; The test method also includes: Acquire a first environmental parameter in the first box and a second environmental parameter in the second box; The step of adjusting the working state of the heater at the liquid storage tank according to the test temperature signal and the pipeline transmission parameter includes: Determine the heat loss of each conveying section according to the first environmental parameter in the first box, the second environmental parameter in the second box, the distance from the water outlet 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 of the water pump device, and the distance from the water outlet 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 conveying section, and generate corresponding temperature adjustment parameters according to the output temperature parameter and the set output temperature to adjust the working state of the heater at the liquid storage tank; And / or, the testing method further comprises: Record target detection parameters regularly according to the set method, wherein the target detection parameters include temperature information, redox potential information, and chlorine water concentration information; And / or, the testing method further comprises: Acquire 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; Dynamic adjustment parameters of each heating area are generated according to the temperature monitoring information, the temperature difference information and the set test temperature, and the power parameters of the heating components of each heating area are adjusted according to the dynamic adjustment parameters.

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