【Test items】

Temperature Shock Test Bench is a kind of verification suitable for heat shock, pressure increasing, pressure keeping and other tests of radiators, intercoolers and other components in a liquid-filled environment (antifreeze).

【Technical parameters】

Equipment appearance

L×W× H (approx.): 3000×1900×2300 (mm) net size with door closed;
Total weight (approx.): 2000kg;

Auxiliary power

Auxiliary power: AC380V(+15%/-10%), 50Hz, 26kW;
Auxiliary air source: 0.6-0.8MPa, flow rate>1.0m³/min;

Test project

Thermal shock, pressure resistance: Test piece environment temperature: -40°C (keep for 24 hours)-High temperature medium: 85-90 °C (cycle 1-5min)-flow rate: 50L/min-injection of antifreeze at room temperature for leak detection;

Main control parameters

Test pressure: 600KPa/1 channel;
Total pressure increasing rate: 1-2MPa/min can be adjusted arbitrarily;
Peak value records: Measurement and control software recording;
Pressure measurement accuracy: ±0.25%F.S.;
Constant pressure control accuracy: ±1.0%F.S;
Pressure keeping time: Arbitrary settings;
Liquid filling and exhaust: Automatic liquid filling, visual judgment of whether it is full or not, and manual stopping;
Medium treatment after test: Equipped with recovery device at the bottom of the test chamber;

Medium system

Test medium: Antifreeze (water-ethylene glycol mixed solution);
Oil suction filter: 40μm;
Medium temperature:
Room temperature medium tank: RT;
High temperature medium tank: RT-100℃;
Temperature control method: PID temperature control;
Temperature control accuracy: ±3℃;
Display accuracy: 0.1℃;
Temperature sensor: 0-150℃;
Heating power: 6KW;
Medium tank: High temperature tank + room temperature chamber;
Material: Stainless steel;
Temperature: RT;
High temperature cycle pump: 60L/min (high temperature cyclic flow rate);

High and low test cabinet

Test cabinet test part: Outer double-sided galvanized sheet sprayed, inner made of 1.5mm thick 304 stainless steel plate;
Test cabinet temperature range: -45℃-RT;
Temperature fluctuation: ≤±0.5℃;
Temperature uniformity: ≤±2.0℃;
Temperature setting accuracy: 0.1℃;
Temperature display accuracy: 0.1℃;
Temperature control method: PID temperature control;
Heating and cooling rate: +20°C~-55°C, cooling ≤90min;
Security observation door: Equipped with lighting system, and visible;
Test chamber: Approx. 2000×1600×1000mm (L×W×H);

Test piece tooling

Connecting tooling: Customized according to the product (1 set of tooling and fixtures), the rest will be customized separately;
Test piece overall dimensions: 1000x1000 (L×W) mm;

Computer system

PC computer

Lower computer: PLC;
Upper computer: Industrial computer;

Computer software

Control software: Visual basic/Labview;
Report format: Microsoft Office;

【Product Advantages】

The structural design of the computer monitoring cabinet (left), the pressure test system (the bottom of the Burst Test Bench) and the test chamber (right) adopts a unified style (color: gray fine wrinkle 1022/white wrinkle 0050/decorative strip is matte burgundy);
The appearance of the equipment is double-sided galvanized sheet spraying, and the test piece chamber is made of 1.5mm thick 304 stainless steel plate;
Lighting is installed inside the Test Bench for easy observation;
Adopting mechanical equipment with carbon steel stamping, surface spraying & galvanized Footmaster, up and down adjustment of the built-in knob can be fixed and moved;
System pressure increasing rate control and display: agree on pressure increasing rate and upper limit of test piece pressure, record and draw pressure-time curve during loading, resolution accuracy: pressure 0.001MPa/index, time 1s/index; The rate resolution at the intersection point of horizontal and vertical is less than 0.001MPa/s;
The pressure sensor of the system includes the external pressure tapping interface, which is pressure tapping of comparison and measurement;
The pressure source of the system is the air-liquid booster pump, the pressure range is 2-120MPa, which is controlled by the air control proportional valve, and the system automatically switches the pressure control system through the solenoid valve to achieve no dead zone in the full range of the system;
The temperature sensor adopts well-known brand sensors to ensure the accuracy of temperature measurement;
For the selection of air drive pump, the system adopts imported low-friction high-flow rate air drive booster pump, which reduces the dead zone when the air drive pump starts, the rapid reversal of the pump realizes continuous pressure increasing, and the maximum instantaneous pressure increasing of the air drive pump;
The constant pressure hydraulic source adopts the high-quality air drive pump, which provides the constant pressure source with the pressure stabilization and energy storage system to ensure stable output;
The system joints and pipelines are made of ultra-high pressure stainless steel joints and high-pressure seamless stainless steel pipes to ensure the security of the system, and the whole system pipeline is non welded;
The automatic collection and processing function of test data can automatically establish the test database, which can be queried at any time, the data can be stored for a long time. It can display test curves and parameters in real time, store and record test results, such as burst peak value, test pressure, etc., and export the stored data in Office document format. It has the function of printing the test report and test pressure curve after the test is completed, and the test report can be edited freely;
The system uses imported high-frequency pressure sensors to achieve a high-speed pressure increasing rate, and its sampling frequency is high, so through high-frequency sampling, the output pressure can be more accurately controlled and smoother pressure output curve can be drawn;
The system also adds the abnormal pressure relief valve, which can more securely unload the internal high pressure of the system in the case of abnormal system;
Adopting the company's self development of special control software, the test process is fully automatic control, automatic measurement, etc., with good professionalism, high reliability, easy upgrade and other characteristics, which can be continuously upgraded and improved with the development of testing equipment measurement and control technology and changes in test standards;
After the test piece bursts, the pressure decreases rapidly and automatically stops pressure increasing, that is, the equipment has the function of automatic shutdown protection after the test piece is damaged, which ensures the security of personnel and equipment to the greatest extent, and is suitable for unattended tests;
For security reasons, pressure can only be increased when the safety door of the test chamber is closed;
There is a transparent observation window on the security door of the test chamber, which can clearly observe and check the leakage and burst of the test piece during the test;
The operation interface is simple and convenient, with easy control of software updates and maintenance;
The main electrical components are imported components, which ensures the accuracy and stability of the testing equipment from the control principle and the quality of the electrical components;
The high-quality air drive pump and imported high-pressure control valve can ensure that the whole set of equipment can work for a long time without failure;

【Control System】

Controller hardware: The temperature controller adopts 1 set of UMC-1100-7 inch touch temperature controller imported from Japan Unique;
Controller interface:
Human-machine interface:
7"TFT true color touch screen, human-machine interface Chinese/English optional, menu operation mode, so that users can easily master the operation method of the equipment;
Display range and resolution:
1) Temperature: -70.0°C~+150.0°C, 0.1°C;
2) Time: 0.1min;
During the test, the current target temperature PV, measurement temperature SV, heating output, start and stop state of each component, refrigeration output, running time, program operation process and other important reference parameters can be displayed in real time in the detailed interface;
Program control function:
2 test methods: Manual operation or program-controlled operation of temperature;
Manual operation:
Users only need to set the target temperature (change rake ratio can be set), and the system can automatically adjust the temperature to the user-set target according to the maximum change rate or the rake ratio set by the user after starting the run button, and automatically control and stabilize at the target temperature;
Program-controlled operation:
1) The controller provides up to 1000 program curves, and various functions such as temperature alternating cycle and stepped temperature change can be realized through the preset program operation function;
2) Each curve can be set up to 100 steps, 6 groups of small cycles, and 10 different programs can be connected;
3) Users preset program can be stored, and it can be called directly when used;
4) When running the program, it is only necessary to call the specified program and start the operation, the controller can automatically judge whether to turn on the refrigeration unit, heater or blower, and automatically adjust the heating and refrigeration output at the same time, without the user too much operation or monitoring, the ideal test process curve can be obtained;
Self-diagnosis function:
The equipment has the functions of power on self-test and failure self diagnosis;
When the controller detects any equipment failure, it can automatically alarm and cut off the operation of the equipment;
When in the alarm state, the controller displays the failure phenomenon and simple failure description in Chinese. Users can easily find the cause of the failure and troubleshoot according to the prompts;
Password protection: The controller has the three-level password function, with clear authority, which can prevent unexpected shutdown or test interruption caused by misoperation by irrelevant personnel;
Monitoring record:
Controller self-storage function:
The controller's built-in memory can store 600 days of historical data (24-hour operation), and the recording interval of 1 second ~ 60 seconds can be arbitrarily selected;
USB data recording function:
It can be directly inserted into any U disk for data recording, and when the equipment is running, the U disk automatically records the parameters such as equipment operating temperature and time;
The recorded data is encrypted and can only be read and stored in the special upper computer software provided by our company to prevent temperature data from being tampered with;
The recorded data can be stored as Access database files in Office software on the upper computer;
Our company provides 1 set of USB disk with the equipment;
Provide remote communication function;
The controller is equipped with the 10M/100M Ethernet communication interface (RJ45) as standard, which can be connected to the router to access the LAN or external network;
Users can bring own upper computer, our company provides 1 set of remote control recording software for free, through network communication can realize remote control, remote monitoring, remote recording and other functions on the remote computer;
The controller of different equipments can be connected to the network through the router, and our company's upper control software can support the function of remote control of up to 16 equipments at the same time on one computer;

【Safety Design】

Power supply phase lack, phase discolation, voltage instability protection (phase sequence protector);
Control circuit current limiting protection (fast fuse);
Refrigeration unit protection:

Motor current overload protection (current overload protector);

Motor overheating protection (built-in temperature protector);

High exhaust pressure protection (high-pressure controller);

High suction temperature protection (cold bypass valve);
Heater short circuit protection (short circuit protection air switch);
Interlock protection between the heater and the air blast to prevent the heater from burning;
Independent upper limit temperature protection (independent level 2 temperature protector);
Controller level 3 password protection;
Electricity leakage protection (electricity leakage protection air switch);
Grounding protection;
Alarm prompt: When in the failure state, the obvious sound and light alarm is used to provide an alarm signal, and at the same time, the failure alarm cause and troubleshoot method are displayed in Chinese on the controller;
Accumulation timer: Install the non-resettable equipment operation accumulation timer, which is used to automatically record the cumulative running time of the equipment, that is convenient for users to reasonably install the equipment maintenance cycle;