Overview
DHJF-1030 low temperature (thermostatic) stirred reaction bath is an ultra-low temperature equipment independently developed by GREATWALL. It adopts the core technology of single-stage compression and partial condensation refrigeration full series combined heat exchanger, which realizes that a single Compressor can reach a low temperature below -100 ° C. The product simplifies the system structure and improves the operation Reliability through the innovative series heat exchanger design. It is suitable for chemical reactions and sample prepative scenarios that require an ultra-low temperature environment.
Features
Adopting the national patented single-stage compression and fractionation ultra-low temperature technology, it can meet the low temperature requirements of -100 ° C to -120 ° C.
2. Key refrigeration Compressor and other components adopt international brands (US, Germany, France) to ensure high Reliability and effectiveness.
3. Operating interface using key input and digital display, easy to operate, easy to monitor the running state parameters.
4. The material of the circulation system is 304 stainless steel and polymer anti-corrosion material, which has the characteristics of anti-rust, anti-corrosion and anti-low temperature liquid pollution.
5. The system structure is simpler than the traditional three-stage cascade refrigeration, the welding point is reduced, the production cost and leakage risk are reduced, and the operation Reliability is improved.
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 full-series combined heat exchanger. The heat exchanger is a series structure of the outer coil of the coil evaporator, which consists of a multi-stage condensing inner tube of the evaporation outer tube and its inner cavity. Through a Compressor driving a multi-stage refrigeration cycle, the phase change characteristics of the mixed refrigerant under different pressures are used to condense and evaporate step by step in the series heat exchanger, so as to achieve ultra-low temperature below -100 ° C.
Applications
Chemical reactions requiring ultra-low temperature environments, sample preparation, material testing, biopharmaceutical R & D
Steps
1. Ensure that the device is placed in a place with an Ambient Temperature of 5~ 25 ° C, and connected to a power supply of 3~ 380V, 50Hz.
2. Set the target temperature (range -100~ -60 ° C) through the buttons of the operation panel.
3. Start the device and monitor operating status parameters (such as temperature) through the digital display.
4. The reactants are placed in Tank (volume 30L, opening dimensions φ 320mm), the maximum can be placed 10000ml flask.
5. After the equipment reaches the set temperature, the thermostatic stirring reaction operation can be carried out.
Notice
• Ambient Temperature allowed for equipment operation is 5~ 25 ℃, please make sure to use within this range.
• The power requirements are 3~, 380V, 50Hz, please connect correctly.
• Tank Maximum capacity is 30L, please do not overload.
• When placing the flask, note that the Maximum capacity is 10000ml.
• Device weight up to 180kg, moving and installation need to pay attention to safety.
• Temperature Fluctuation is +/- 2 ° C, please note this accuracy range.
• Do not disassemble or modify the refrigeration system yourself, so as not to affect the performance or cause leakage.
