Temperature control is a crucial factor in scientific research and laboratory teaching. In order to ensure the accuracy and reliability of experimental results, laboratories need to use a variety of high-precision temperature control equipment. Among them, the high and low temperature circulator, as a powerful and easy-to-operate laboratory equipment, has become an essential tool for many laboratories. This article will introduce the working principle, functional characteristics and application of high and low temperature circulators in the laboratory in detail.
First, the working principle.
A high and low temperature circulator is a device that can quickly switch between high and low temperatures, and its working principle mainly relies on the refrigeration system and heating system. Refrigeration systems typically use major components such as compressors, condensers, expansion valves, and evaporators to cool the experimental samples through the circulation of refrigerants. The heating system uses elements such as electric heaters or steam heaters to heat up the experimental sample directly. Through the coordinated control of the refrigeration system and the heating system by the control system, the high and low temperature circulator can achieve accurate temperature control of the experimental sample.
2. Functional characteristics.
1.Wide temperature range: High and low temperature circulators can provide a wide range of temperatures to meet different experimental needs. In general, the temperature range of high and low temperature circulators can be from -100 to 300 or even higher to meet the needs of various low temperature and high temperature experiments.
2.High temperature control accuracy: The high and low temperature circulator adopts advanced temperature control technology, which can achieve accurate temperature control of experimental samples. In general, the temperature control accuracy of high and low temperature circulators can reach 01 , or even higher.
3.Good temperature stability: The high and low temperature circulator adopts a high-performance refrigeration system and heating system, which can achieve stable temperature control of experimental samples. During long-term experiments, the high and low temperature cycler can keep the temperature fluctuation of the experimental sample within a small range to ensure the accuracy of the experimental results.
4.Easy to operate: The high and low temperature circulator adopts an intelligent operation interface, and users can easily set the temperature, time and other parameters of the experimental sample. In addition, the high and low temperature circulator also has automatic fault detection and alarm functions, which can monitor the operating status of the equipment in real time to ensure the safety and smooth progress of the experimental process.
3. Application in the laboratory.
1.Chemical reaction experiments: Many chemical reactions need to be carried out under specific temperature conditions, and high and low temperature cyclers can provide precise temperature control for these reactions, so as to ensure the smooth progress of the reaction and the accuracy of the experimental results.
2.Material property testing: In the field of materials science, the mechanical and thermal properties of many materials are closely related to temperature. With high and low temperature circulators, researchers can test materials at different temperatures to study how the properties of the material work with temperature.
3.Biomedical experiments: In the biomedical field, many experiments need to be performed under specific temperature conditions, such as cell culture, enzyme activity assays, etc. High and low temperature cyclers can provide precise temperature control for these experiments, ensuring the accuracy of experimental results.
4.Environmental simulation experiments: In the field of environmental science, many experiments need to be carried out under simulated specific environmental conditions, such as high temperature and high pressure experiments, low temperature vacuum experiments, etc. High and low temperature cyclers can provide precise temperature control for these experiments, ensuring the accuracy of experimental results.