Ice salt muddy water automatic simulation test system and method thereof
By designing an automatic simulation test system for ice, salt and mud water and using a combination of a high-temperature box, a low-temperature box and a salt and mud water circulation pump, the problem that existing devices cannot meet the safe switching requirements of live and loaded samples between high temperature and ice, salt and mud water environments was solved, achieving a significant improvement in safety and equipment life.
Patent Information
- Application Number
- CN202511008348.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-09-19
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing ice water or muddy water immersion test equipment cannot meet the needs of transferring and switching charged and loaded samples between the high-temperature box and the ice water box. There are safety hazards and equipment corrosion problems, and it cannot effectively simulate the high-concentration salt mud water environment.
An automated simulation test system for ice-salt muddy water was designed, consisting of a high-temperature chamber, a low-temperature chamber, a salt-slurry water circulation pump, and an insulated sample test chamber. The system uses the salt-slurry water circulation pump to automatically circulate the ice-salt muddy water, keeping samples stable in the high-temperature chamber, avoiding frequent movement and ensuring safety and equipment independence.
It achieves safe switching of charged and loaded samples between high temperature and ice salt mud water environments, reduces the risk of manual operation, avoids equipment corrosion and safety hazards, and improves the reliability and efficiency of the test.
Smart Images
Figure CN120668566A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of abnormal environment simulation testing of electric vehicles, and in particular to an automatic simulation test system for ice, salt, muddy water and a method thereof. Background Art
[0002] Electric vehicles face a variety of extreme environments during use, including high and low temperatures, high salinity, and high dust and mud conditions. Core components like the conductive onboard charger and battery must withstand these extreme conditions and ensure corrosion resistance, sealing, and proper functioning, ensuring product safety and reliability throughout their service life. In particular, some internationally renowned vehicle manufacturers incorporate more stringent environmental testing conditions than conventional ones during the R&D phase. The ice-salt mud immersion test, for example, simulates the alternating effects of high temperatures and immersion in ice-salt mud. The domestic industry conducts relatively more conventional ice water immersion tests. This test only simulates the alternating effects of high temperature and ice water on the tested samples. The tested samples in this test usually do not simulate actual working conditions, that is, the tested samples are not powered on and loaded according to actual working conditions. The corresponding equipment is usually an integrated upper and lower structure design, that is, the upper layer is a high-temperature environmental chamber, and the lower layer is an ice water test chamber. The test method is that the sample is placed in the upper high-temperature chamber for a specified period of time, and then sunk to the lower low-temperature ice water tank of the equipment and immersed. After the specified immersion time is up, it rises to the upper high-temperature space. The sample and the sample rack are switched back and forth between the upper and lower spaces for testing. The above method cannot simulate the situation where the sample is used in a high-salinity and ice mud water combined environment: there are mainly the following problems. (1) If the on-board charger or battery sample is normally energized and loaded, the sample cannot be transferred between the upper high-temperature box and the lower ice water tank due to the influence of cables and coolant pipes. Due to the danger of the sample being energized and the test cycle usually lasting more than a thousand hours, it is impossible to manually transfer the sample. (2) Since the upper and lower layers of the equipment are integrated metal frames, the sample rack and the lower ice water tank are also made of metal connected to the metal shell of the equipment. If the sample leaks due to insulation failure or sample abnormality during the test, the equipment will have a serious risk of electric shock, and if the energized and loaded sample is frequently moved, this risk will increase. (3) The lower ice water tank of the existing ice water immersion test device is The ice water in the box is in direct contact with the copper pipes related to the compression refrigeration system. If a high-concentration salt water is used for the test, the high-concentration salt water will corrode these copper pipes. After the copper pipes are corroded and perforated, the ice water will flow into the compressor and cause damage to the compressor. Therefore, it cannot be used for the test of high-concentration salt water. (4) The lower ice water tank of the existing ice water immersion test device does not have a stirring device. If a high-concentration salt mud water is used for the test, dust and mud will be deposited at the bottom of the water tank, so that the mud water will slowly become dust-free water. The sample cannot be immersed in the water tank to achieve the mud water simulation test effect. Moreover, since the lower ice water tank and the entire equipment are an integrated structure and cannot be moved, the dust and mud deposited at the bottom of the water tank are difficult to clean and the cleaning is very labor-intensive. In summary, the existing ice water or mud water immersion test device cannot meet the ice salt mud water simulation test under the conditions of sample charge and load.
[0003] Therefore, we propose an automatic simulation test system and method for ice-salt mud water in order to solve the above problems. Summary of the Invention
[0004] The purpose of the present invention is to provide an automatic simulation test system and method for ice-salt muddy water to solve the problems in the current market raised by the above background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic simulation test system for ice, salt and mud water, comprising a high-temperature box and a low-temperature box placed in a horizontal position; a programmable three-phase power load, a programmable DC power supply and a chiller connected to one side of the high-temperature box, the control ends of the programmable three-phase power load, the programmable DC power supply and the chiller are connected to one end of the test control system, and the high-temperature box is located above the programmable three-phase power load and is also connected to a computer host computer, the high-temperature box and the low-temperature box are connected through the salt mud water circulation pump A and the salt mud water circulation pump B, a sample test box is also placed inside the high-temperature box, and a liquid level sensor B is installed inside the sample test box, an ice, salt and mud water tank is placed inside the low-temperature box, a liquid level sensor A is installed inside the ice, salt and mud water tank, and a stirring pump for facilitating stirring treatment is also installed inside the ice, salt and mud water tank.
[0006] Preferably, the high temperature box is used to provide a high temperature simulation environment for the sample to be tested, so that the sample to be tested can be maintained in the high temperature state required for the test. The sample to be tested is always placed in the high temperature box and does not need to be moved, ensuring that the sample to be tested can be safely in the energized and loaded working state required for the test for a long time.
[0007] Preferably, the low temperature box is used to quickly cool the salt mud water required for the test and maintain it at 0-4 degrees or other specified test low temperature conditions, providing the tested samples with ice salt mud water at the required test temperature.
[0008] Preferably, the programmable three-phase power load is used to provide AC power and DC high-power load to the sample under test, so that the sample under test can simulate the power supply and load status during actual work, and the programmable DC power supply is used to provide DC communication power to the sample under test, so that the sample under test can simulate the communication control function during actual working conditions.
[0009] Preferably, the computer host is used to provide startup software to the sample under test so that the sample under test can simulate the control program and parameter status during actual operation, and the chiller is used to provide the sample under test with the cooling circulation system required for the test so as to simulate the coolant temperature, pressure, flow and other states of the sample under test during actual operation.
[0010] Preferably, the salt mud water circulation pump A and the salt mud water circulation pump B constitute a salt mud water circulation test system; when the sample to be tested maintains the high temperature required for the test in the high temperature box for a specified period of time, the salt mud water circulation pump B will automatically pump the salt mud water in the ice salt mud water tank in the low temperature box into the sample test box, allowing the sample to be tested to be immersed in the ice salt mud water. When the immersion time reaches the time specified in the test, the salt mud water circulation pump A will automatically pump the salt mud water in the sample test box out and return it to the ice salt mud water tank for cooling; and the mud water circulation pump A and the salt mud water circulation pump B adopt corrosion-resistant special sewage pumps, so that they are not easily corroded and blocked during the salt mud water circulation, thereby enhancing the effective service life of the salt mud water circulation system.
[0011] Preferably, the sample test box is made of insulating material to prevent the tested sample from failing during the harsh test process. In the event of leakage, the leakage will not be conducted to the metal shell of the high-temperature box and cause a safety hazard; the sample placement rack in the sample test box is grid-shaped so that the bottom of the tested sample can fully contact the test ice salt mud water, while also reducing the amount of mud deposited on the sample placement rack; the sample test box is provided with a liquid level sensor B. When the salt mud water circulation pump B continues to pump water after the predetermined pumping time is reached so that the water volume reaches the position of the liquid level sensor B, the salt mud water circulation pump B can be automatically controlled to stop pumping to prevent the salt mud water circulation pump B from pumping in excessive ice salt mud water; the bottom of the sample placement rack of the sample test box is funnel-shaped, and the bottom of the funnel is connected to the input pipe of the salt mud water circulation pump A. When the tested sample is immersed in the ice salt mud water for the test set time, the salt mud water circulation pump A can automatically and quickly drain the ice salt mud water in the sample test box. After the salt mud water is drained, the tested sample can quickly return to the high temperature state set in the test in the high-temperature box.
[0012] Preferably, the ice salt mud water tank is made of stainless steel, which can not only prevent corrosion by the test brine, but also enable the salt mud water in the water tank to quickly reach the low temperature required for the test in the low-temperature box; the ice salt mud water tank is provided with a stirring device, so that the ice salt mud water is fully stirred and then pumped into the sample test box; the ice salt mud water tank is provided with a liquid level detection device. When the liquid level detection device monitors that the liquid in the ice salt mud water tank is lower than the safe water level required for the test, it can send a warning signal and a warning sound to the detection and control system to prompt the operator to replenish the salt mud water required for the test in time.
[0013] Preferably, the test control system can set relevant processes and times according to the procedures required for the test, and automatically control the test process according to the set procedures and time until the test is completed, including: automatically controlling the heating function of the high-temperature box, automatically controlling the cooling function of the low-temperature box, automatically controlling the start and stop of the salt mud water circulation pump A and the salt mud water circulation pump B, and automatically stopping the test and issuing a prompt message and a warning sound when the salt mud water circulation pump fails or is abnormally blocked; automatically controlling the start and stop of the stirring device in the ice salt mud water tank, automatically issuing a prompt message and a warning sound when the liquid level in the ice salt mud water tank is too low, and automatically disconnecting the relevant test power supply when the test is over.
[0014] An automatic simulation test system for ice, salt and muddy water is disclosed. A method for the automatic simulation test system for ice, salt and muddy water is also disclosed. The specific method is as follows:
[0015] S1: The test personnel placed the sample test box in a high temperature box and the ice salt mud water box in a low temperature box;
[0016] S2: Place the sample under test on the sample placement rack in the sample test chamber, and connect the sample to a programmable three-phase power load, a programmable DC power supply, a chiller, and a computer host computer, so that the sample under test can simulate normal working conditions according to the manufacturer's specified conditions;
[0017] S3: Connect the input pipe of the salt mud water circulation pump A to the interface at the bottom of the sample test box to pump away the ice salt mud water after the test. The output pipe of the circulation pump is connected to the ice salt mud water tank so that the ice salt mud water after the test is pumped back to the ice salt mud water tank for cooling;
[0018] S4: Connect the output pipe of the salt mud water circulation pump B to the sample test box to provide the tested samples with the ice salt mud water required for the test;
[0019] S5: Prepare salt mud water of specified concentration according to test conditions and pour it into the ice salt mud water tank;
[0020] S6: Set the required test temperature of the high temperature box and the high temperature duration in the control system; set the test temperature of the low temperature box and the low temperature duration; set the stirring time of the stirring pump, the pumping time of the brine mud water circulation pump A and the brine mud water circulation pump B, set the total number of test cycles, and then start the test until the test time and program are over. When the test is over, the control system will automatically cut off the test power supply and related loads.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. This test system and method innovatively adopts a new test method in which the sample is kept stationary and the test ice salt mud water is circulated. This effectively solves the disadvantage that the existing ice water immersion test equipment cannot transfer and switch the charged and loaded samples between the high temperature box and the ice water tank. It also reduces the risk of manual transfer operations of charged samples.
[0023] 2. The more expensive part of this simulation test system is the test chamber used to provide high and low temperature environments for the tested samples. The traditional ice water or muddy water immersion test device structure is a high-temperature chamber on the upper layer and a low-temperature chamber on the lower layer. However, the low-temperature chamber on the lower layer is a container directly containing ice water or muddy water. However, the high-concentration salt muddy water has a strong corrosive effect, which will directly corrode and damage the lower container and refrigeration system (including the compressor) of the equipment. In addition, because the lower container and the equipment are integrated into a structure, it is very inconvenient for operators to clean and wash the residual mud on the lower container, which usually takes more than half a day. This test system and method adopts an innovative experimental method and structural design, separates the high-temperature and low-temperature environmental chambers into separate designs, and designs the ice salt mud water into an independent circulation system. This salt mud water circulation system is completely isolated from the high-temperature and low-temperature environmental chamber equipment, so that the salt mud water does not come into contact with the high and low temperature environmental chambers, effectively avoiding the direct corrosion of high-temperature and low-temperature chamber equipment by high-concentration salt mud water, greatly improving the service life of the equipment and reducing the cost of use. In addition, the salt mud water tank of the salt mud water circulation system is independently movable. After the test, it can be directly taken out from the high-temperature and low-temperature chambers for cleaning and washing. The cleaning and washing of the salt mud water tank is very simple, easy and efficient. At the same time, since the high-temperature environmental chamber, low-temperature environmental chamber, and salt-mud-water circulation system are all independent, no matter which part has problems or failures, they can be quickly resolved. For example, if there is a problem with the high-temperature chamber or the low-temperature chamber, other high-temperature chambers or low-temperature chambers in the laboratory can be used instead to continue the test. If a component of the circulation system fails or has problems, the component can be quickly replaced to continue the test. In short, the test will not be interrupted for a long time or even be unable to continue due to equipment failure or problems, which greatly improves the reliability of the test and reduces the overall cost of the test.
[0024] 3. This test system and method adds an agitator to prevent high-concentration dust from settling in the water tank, allowing the sample to be tested in a truly simulated environment of immersion in salt and mud water, thereby greatly improving the validity of the test results.
[0025] 4. The existing ice water or muddy water immersion test method and equipment is to immerse the charged and loaded sample under test in the metal ice water tank of the test device as a whole. When insulation failure or accidental leakage occurs, the metal shell of the entire test device will directly become conductive. When the operator touches the metal shell of the equipment, there is a risk of electric shock. The present test system and method adopts an independent insulating material sample test box isolated from the test device. During the test, the sample test box is placed in a high-temperature box. When the insulation of the sample under test fails or leakage occurs accidentally, it will not directly cause the metal shell of the high-temperature box where the sample test box is placed to leak. Moreover, during the entire test process, there is no need for the test personnel to move or carry out operations on the charged and loaded sample under test, which greatly improves the safety of the test operation.
[0026] 5. This test system and method can automatically complete the test according to the set procedure and time by setting relevant test parameters in the test control system. The relevant test power supply will be automatically cut off after the test is completed. If any abnormality occurs in the test device during the test, an alarm will be automatically triggered to prompt the test personnel to deal with it in time. The entire process has a high degree of automatic control, which greatly reduces the operating intensity and time of the test personnel and greatly improves the test efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 Schematic diagram of the system module of the present invention.
[0028] In the figure: 1. High temperature chamber; 2. Low temperature chamber; 3. Programmable three-phase power load; 4. Programmable DC power supply; 5. Chiller; 6. Salt mud water circulation pump A; 7. Salt mud water circulation pump B; 8. Sample test chamber; 9. Ice salt mud water tank; 10. Computer host; 11. Test control system; 12. Agitation pump; 13. Liquid level sensor A; 14. Liquid level sensor B. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.
[0030] See also Figure 1 The present invention provides the following technical solutions: an automatic simulation test system and method for ice-salt muddy water
[0031] like Figure 1As shown, the ice, salt, mud and water automatic simulation test system and method for the on-board charger of an electric vehicle provided in this embodiment include a high-temperature box 1, which is used to provide a high-temperature simulation environment for the sample to be tested, so that the sample to be tested can be maintained in the high-temperature state required for the test. The sample to be tested is always placed in the high-temperature box 1 and does not need to be moved, ensuring that the sample to be tested can be stably in the charged and loaded working state required for the test for a long time.
[0032] Low temperature box 2 is used to quickly cool the salt mud water required for the test and maintain it at 0-4 degrees or other specified test low temperature conditions, providing the tested samples with ice salt mud water at the required test temperature.
[0033] The programmable three-phase power supply load 3 is used to provide AC power and DC high-power load to the sample under test, so that the sample under test can simulate the power supply and load status during actual work.
[0034] The programmable DC power supply 4 is used to provide DC communication power to the sample under test, so that the sample under test can simulate the communication control function under actual working conditions, thereby simulating actual working conditions.
[0035] The chiller 5 is used to provide the tested sample with a cooling circulation system required for the test, so as to simulate the cooling liquid temperature, pressure, flow rate and other conditions when the tested sample is actually working.
[0036] The salt-slurry water circulation pump A6 and the salt-slurry water circulation pump B7 form the salt-slurry water circulation test system. After the sample under test maintains the required high temperature in the high-temperature chamber 1 for the specified time, the salt-slurry water circulation pump B7 automatically pumps the salt-slurry water from the icy salt-slurry water tank 9 in the low-temperature chamber 2 into the sample test chamber 8, immersing the sample in the icy salt-slurry water. When the immersion time reaches the specified test time, the salt-slurry water circulation pump A6 automatically pumps the salt-slurry water from the sample test chamber 8 back into the icy salt-slurry water tank 9 for cooling. The salt-slurry water circulation pumps A6 and B7 utilize specialized, corrosion-resistant sewage pumps, making them less susceptible to corrosion and clogging during the salt-slurry water circulation process, thereby extending the effective service life of the salt-slurry water circulation system.
[0037] The sample test box 8 is made of insulating material. If the sample under test fails during the test and leakage occurs, the leakage will not be transmitted to the metal shell of the high-temperature box 1, causing a safety hazard. The sample placement rack in the sample test box 8 is grid-shaped, so that the bottom of the sample under test can fully contact the test ice salt mud water, while also reducing the amount of mud deposited on the sample placement rack; the sample test box 8 is equipped with a liquid level sensor B14. When the salt mud water circulation pump B7 continues to pump water after the predetermined pumping time is reached and the water volume reaches the position of the liquid level sensor B14, the salt mud water circulation pump B7 can be automatically controlled to stop pumping to prevent the salt mud water circulation pump B7 from pumping in excessive ice salt mud water. The bottom of the sample placement rack of the sample test box 8 is funnel-shaped, and the bottom of the funnel is connected to the input pipe of the salt mud water circulation pump A6. When the sample to be tested is immersed in the ice salt mud water for the test set time, the salt mud water circulation pump A6 can automatically and quickly drain the ice salt mud water in the sample test box 8. After the salt mud water is drained, the sample to be tested can be quickly restored to the high temperature state set for the test in the high temperature box 1.
[0038] The ice salt mud water tank 9 is made of stainless steel, which can not only prevent corrosion by the test salt water, but also enable the salt mud water in the water tank to quickly reach the low temperature required for the test in the low temperature box 2; the ice salt mud water tank 9 is provided with a stirring device, so that the ice salt mud water is fully stirred and then pumped into the sample test box 8; the ice salt mud water tank 9 is provided with a temperature sensor to monitor the temperature of the test salt mud water in real time to ensure that it meets the temperature required for the test. The ice salt mud water tank 9 is provided with a liquid level detection device. When the liquid level detection device detects that the liquid in the ice salt mud water tank 9 is lower than the safe water level required for the test, it can send a warning signal and a warning sound to the detection and control system to prompt the operator to replenish the salt mud water required for the test in time.
[0039] The computer host computer 10 is used to provide startup software to the sample under test so that the sample under test can simulate the control program and parameter status during actual work.
[0040] The test control system 11 can set the relevant processes and time according to the procedures required for the test, and automatically control the test process according to the set procedures and time until the test is completed, including: automatic control of the heating function of the high-temperature box 1, automatic control of the cooling function of the low-temperature box 2, automatic control of the start and stop of the salt mud water circulation pump A6 and the salt mud water circulation pump B7, when the salt mud water circulation pump fails or is blocked abnormally, the test is automatically stopped and a prompt message and warning sound are issued; automatic control of the start and stop of the stirring pump 12 in the ice salt mud water tank 9, when the liquid level in the ice salt mud water tank 9 is too low, the liquid level sensor A13 automatically issues a prompt message and a warning sound, and automatically disconnects the relevant test power supply when the test is over.
[0041] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0042] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.
[0043] The foregoing description shows and describes several preferred embodiments of the present invention. However, as before, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.
Claims
1. An automatic simulation test system for ice, salt and muddy water, comprising a high temperature box (1) and a low temperature box (2) placed in a horizontal position; Its characteristics are: The high temperature box (1) is connected to a programmable three-phase power load (3), a programmable DC power supply (4) and a chiller (5) at one side thereof. The control ends of the programmable three-phase power load (3), the programmable DC power supply (4) and the chiller (5) are connected to one end of a test control system (11) (11). The high temperature box (1) is located above the programmable three-phase power load (3) and is also connected to a computer host (10). The high temperature box (1) and the low temperature box (2) are connected via a salt mud water circulation pump A (6) and a salt mud water circulation pump B (7). A sample test box (8) is also placed inside the high temperature box (1), and a liquid level sensor B (14) is installed inside the sample test box (8). An ice salt mud water tank (9) is placed inside the low temperature box (2), and a liquid level sensor A (13) is installed inside the ice salt mud water tank (9). A stirring pump (12) for convenient stirring is also installed inside the ice salt mud water tank (9).
2. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The high temperature box (1) is used to provide a high temperature simulation environment for the sample to be tested, so that the sample to be tested is maintained in the high temperature state required for the test. The sample to be tested is always placed in the high temperature box (1) and does not need to be moved, ensuring that the sample to be tested can be safely kept in the charged and loaded working state required for the test for a long time.
3. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The low temperature box (2) is used to quickly cool the salt mud water required for the test and maintain it at 0-4 degrees or other specified test low temperature conditions, providing the tested sample with ice salt mud water at the required test temperature.
4. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The programmable three-phase power supply load (3) is used to provide AC power and DC high-power load to the sample under test, so that the sample under test can simulate the power supply and load status during actual work. The programmable DC power supply (4) is used to provide DC communication power to the sample under test, so that the sample under test can simulate the communication control function during actual working conditions.
5. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The computer host (10) is used to provide startup software for the sample to be tested so that the sample to be tested can simulate the control program and parameter status during actual operation. The chiller (5) is used to provide the sample to be tested with a cooling circulation system required for the test so as to simulate the cooling liquid temperature, pressure, flow rate and other states during actual operation of the sample to be tested.
6. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The salt mud water circulation pump A (6) and the salt mud water circulation pump B (7) form a salt mud water circulation test system; when the sample to be tested maintains the high temperature required for the test in the high temperature box (1) for a specified time, the salt mud water circulation pump B (7) will automatically pump the salt mud water in the ice salt mud water tank (9) in the low temperature box (2) into the sample test box (8), allowing the sample to be tested to be immersed in the ice salt mud water. When the immersion time reaches the specified time of the test, the salt mud water circulation pump A (6) will automatically pump the salt mud water in the sample test box (8) out and return it to the ice salt mud water tank (9) for cooling; and the mud water circulation pump A (6) and the salt mud water circulation pump B (7) use corrosion-resistant special sewage pumps, so that they are not easily corroded and blocked when circulating the salt mud water, thereby enhancing the effective service life of the salt mud water circulation system.
7. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The sample test box (8) is made of insulating material to prevent the tested sample from failing during the harsh test process. In the event of leakage, the leakage will not be conducted to the metal shell of the high-temperature box (1) and cause safety hazards. The sample placement rack in the sample test box (8) is in a grid shape so that the bottom of the tested sample can fully contact the test ice salt mud water, while also reducing the amount of mud deposited on the sample placement rack. The sample test box (8) is provided with a liquid level sensor B (14). When the salt mud water circulation pump B (7) reaches the predetermined pumping time, it continues to pump water so that the water volume reaches the liquid level sensor B. (14) position, the salt mud water circulation pump B (7) can be automatically controlled to stop pumping water to prevent the salt mud water circulation pump B (7) from pumping in excessive amounts of ice salt mud water; the bottom of the sample placement rack of the sample test box (8) is funnel-shaped, and the bottom of the funnel is connected to the input pipe of the salt mud water circulation pump A (6). When the sample to be tested is immersed in the ice salt mud water for the time set in the test, the salt mud water circulation pump A (6) can automatically and quickly drain the ice salt mud water in the sample test box (8). After the salt mud water is drained, the sample to be tested can quickly return to the high temperature state set in the test in the high temperature box (1).
8. The automatic simulation test system for ice-salt muddy water according to claim 1 is characterized by: The ice salt mud water tank (9) is made of stainless steel, which can not only prevent the test salt water from corroding, but also enable the salt mud water in the water tank to quickly reach the low temperature required for the test in the low temperature box (2); the ice salt mud water tank (9) is provided with a stirring device, so that the ice salt mud water is fully stirred and then pumped into the sample test box (8); the ice salt mud water tank (9) is provided with a liquid level detection device. When the liquid level detection device detects that the liquid in the ice salt mud water tank (9) is lower than the safe water level required for the test, it can send a warning signal and a warning sound to the detection control system, so as to prompt the operator to replenish the salt mud water required for the test in time.
9. The automatic simulation test system for ice-salt muddy water according to claim 1, characterized in that: The test control system (11) can set relevant processes and time according to the procedures required for the test, and automatically control the test process according to the set procedures and time until the test is completed, including: automatically controlling the heating function of the high-temperature box (1), automatically controlling the cooling function of the low-temperature box (2), automatically controlling the start and stop of the salt mud water circulation pump A (6) and the salt mud water circulation pump B (7), and automatically stopping the test and issuing a prompt message and a warning sound when the salt mud water circulation pump fails or is abnormally blocked; automatically controlling the start and stop of the stirring device in the ice salt mud water tank (9), automatically issuing a prompt message and a warning sound when the liquid level in the ice salt mud water tank (9) is too low, and automatically disconnecting the relevant test power supply when the test is completed.
10. The automatic simulation test system for ice-salt muddy water according to claim 1, characterized in that: Also disclosed is a method for an automatic simulation test system for ice, salt, mud and water, the specific method is as follows: S1: The test personnel place the sample test box (8) in the high temperature box (1) and the ice salt mud water box (9) in the low temperature box (2); S2: Place the sample to be tested on the sample placement rack in the sample test box (8), and connect the sample to the programmable three-phase power load (3), the programmable DC power supply (4), the chiller (5) and the computer host (10), so that the sample to be tested can simulate the normal working state according to the manufacturer's specified conditions; S3: Connect the input pipe of the salt mud water circulation pump A (6) to the interface at the bottom of the sample test box (8) to pump away the ice salt mud water after the test, and connect the output pipe of the circulation pump to the ice salt mud water tank (9) so that the ice salt mud water after the test is pumped back to the ice salt mud water tank (9) for cooling; S4: Connect the output pipe of the salt mud water circulation pump B (7) to the sample test box (8) to provide the tested sample with ice salt mud water required for the test; S5: Prepare salt mud water of the specified concentration according to the test conditions and pour it into the ice salt mud water tank (9); S6: setting the required test temperature and high temperature duration of the high temperature box (1) in the control system; setting the test temperature and low temperature duration of the low temperature box (2); Set the stirring time of the stirring pump (12), the pumping time of the brine mud water circulation pump A (6) and the brine mud water circulation pump B (7), set the total number of test cycles, and then start the test until the test time and program are completed. When the test is completed, the control system will automatically cut off the test power supply and related loads.