Overview
DHJF-1250 low temperature (thermostatic) stirring reaction bath is an ultra-low temperature equipment independently developed by GREATWALL. It adopts single-stage compression and fractionation refrigeration full series combination heat exchanger technology, which realizes a low temperature range of -120 ° C to -60 ° C for a single Compressor. Compared with the traditional three-stage cascade refrigeration system, the structure is simpler and the operation is more reliable.
Features
1. Own core technologies (national patented products).
Adopting single-stage compression and split condensation ultra-low temperature technology can meet the needs of -100 ° C to -120 ° C.
3. Refrigeration Compressor and other key components adopt American, German and French brands, Reliability and effectiveness.
4. Key input and digital display, easy to operate, easy to monitor 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 the self-developed single-stage compression and fractional condensation refrigeration full-series combined heat exchanger technology. Its core is the series heat exchanger of the outer sleeve and coil of the coil evaporator, which consists of a multi-stage condensation inner tube of the evaporation outer tube and its inner cavity. A multi-stage refrigeration system is formed by one Compressor to achieve ultra-low temperature refrigeration. The system structure is simpler than the traditional cascade type, the welding point is reduced, and the operation Reliability is improved.
Applications
Low temperature chemical reaction, material low temperature testing, biological sample freezing, chemical synthesis, scientific research experiment
Steps
1. Ensure that the equipment is placed in an Ambient Temperature 5~ 25 ℃, well ventilated position.
2. Connect 3~ 380V, 50Hz power supply.
3. Set the required temperature (range -120 ° C to -60 ° C) through the buttons and digital display panel.
4. Start the device and monitor the operating status parameters.
5. Place the reactants in a Tank (up to 20000ml flask) and stir the reaction.
Notice
* Please ensure that the Operating Environment temperature is between 5 and 25 ° C.
* The power requirements are 3~, 380V, 50Hz, please connect correctly.
* Device weight up to 265kg, handling and placement should pay attention to safety.
* Tank volume is 50L, do not overdose.
* Pay attention to equipment Dimensions (1340 * 820 * 1310mm), reserve enough space.
Please perform proper cleaning and maintenance after use.
