Overview
DHJF-1205 low temperature (thermostatic) stirred reaction bath is an ultra-low temperature refrigeration equipment independently developed by GREATWALL. It adopts single-stage compression and partial condensation refrigeration full series combined heat exchanger technology, which breaks through the limitations of traditional three-stage cascade refrigeration system and realizes a wide Temperature range of -120 ° C to -60 ° C with a single Compressor. The system structure is simpler and the operation Reliability is higher.
Features
1. Own core technologies (national patented products).
Adopting single-stage compression fractionation ultra-low temperature technology can meet the low temperature requirements of -100 ° C to -120 ° C.
3. Refrigeration Compressor and other key components adopt international brands (US, Germany, France) to ensure high Reliability and effectiveness.
4. With key input and digital display, the operation is simple, making it easy to monitor the operating status parameters.
5. The material of the circulation system is 304 stainless steel and polymer anti-corrosion material, which can prevent rust, corrosion and low temperature liquid pollution.
6. There is no circulatory system below -100 ° C.
Principle
The equipment adopts single-stage compression fractional condensation refrigeration technology. Its core is a self-developed coil evaporator series heat exchanger with outer coil, which consists of a multi-stage condensing inner tube of the evaporation outer tube and its inner cavity. A multi-stage refrigeration system is formed by a Compressor, which uses the fractional condensation characteristics of the mixed refrigerant under different pressures to achieve step-by-step cooling, so as to achieve the goal of ultra-low temperature (minimum -120 ° C). Compared with the traditional three-stage cascade refrigeration system, this design structure is simplified, the welding point is reduced, and the operation Reliability is improved.
Applications
Chemical synthesis, material low temperature testing, biological sample freezing, pharmaceutical research and development, laboratory low temperature reaction
Steps
1. Place the device in a smooth and ventilated place and connect it to the required power supply (220V~ 240V~, 50Hz).
2. Add an appropriate amount of low-temperature heat conduction medium to the Tank.
3. Turn on the power switch and set the required target temperature through the buttons of the operation panel.
4. Start the refrigeration and stirring functions, and the equipment starts running.
5. Monitor the real-time temperature and equipment operation status through the digital display.
6. After use, turn off the cooling and stirring functions, and then turn off the power switch.
Notice
• Power supply voltage and equipment requirements (220V~ 240V~, 50Hz) consistent.
Equipment should be placed in a smooth, well-ventilated environment.
• Please use the specified low temperature heat conduction medium in the Tank and keep the appropriate amount.
• When the equipment is running, do not block the entry and exit trends to ensure good heat dissipation.
• The maximum flask capacity is 2000ml, do not overload.
• When cleaning and maintaining, please pay attention to power failure and prevent liquids from entering the electrical part.
When moving this heavy equipment (125kg), it is necessary to pay attention to safety and prevent dumping.
• If there is an abnormal situation, it should be stopped immediately and checked by a professional.
