A temperature control system for liquid analysis

Abstract

The invention provides a temperature control system used for handheld equipment of a warming system composed of an infrared transmitting tube (2) and a control system composed of an infrared sensor (10). Sampling liquid is directly heated based on the infrared heating theory, meanwhile, an infrared temperature detection system is used for controlling infrared transmitting power to control temperature precisely, the sampling liquid can be fast warmed due to the adoption of the LED transmitting tube special for infrared transmission, time delay does not exist, a detection chamber can be made of non-heat-conduction materials due to the fact that the sampling liquid does not need to be heated by adopting resistance type heat conduction, therefore, energy needed by heating can be very small, and temperature rises fast. In addition, due to the fact that the infrared sensor is adopted in the temperature control detection system and has the advantages of being low in energy consumption and high in precision, compared with the existing mode, the temperature control system greatly lowers energy consumption, and a handheld field detection system can be really timely and efficient.

Description

technical field [0001] The invention relates to a temperature control system, in particular to a temperature control system for liquid analysis. Background technique [0002] In order to ensure the detection accuracy, the sanitation prevention detection system will carry out a constant temperature treatment on the temperature of the sampling liquid, which is relatively simple for a large detection system in the laboratory to achieve the required temperature, because there is sufficient power It can be prepared in advance, and the temperature control of the detection area of ​​the sampling sample can be carried out, and the temperature of the sampling liquid can also be quickly controlled. However, it is more difficult for the system that requires on-site sampling and analysis, because it is affected by the environment. It is impossible to have sufficient power supply, especially the hand-held on-site detection system is limited by the size, it is impossible to install a larg...

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Problems solved by technology

[0002] In order to ensure the detection accuracy, the sanitation prevention detection system will carry out a constant temperature treatment on the temperature of the sampling liquid, which is relatively simple for a large detection system in the laboratory to achieve the required temperature, because there is sufficient power It can be prepared in advance, and the temperature control of the detection area of ​​the sampling sample can be carried out, and the temperature of the sampling liquid can also be quickly controlled. However, it is more difficult for the system that requires on-site sampling and analysis, because it is affected by the environment. It is impossible to have sufficient power supply, especially the hand-held on-site detection system is limited by the size, it is impossible to install a large battery to provide the energy required for temperature control, especially when the ambient temperature is low, not only the liquid that needs to be heated consumes energy Larger, and the efficiency of the battery will be lower at low temperatures. The known heating method on the market now is to use resistance heating. This method is relatively simple and low in cost. Recently, some more energy-saving methods have been developed abroad. Ceramic heating devices are used for heating, but these methods will have a relatively large energy consumption and slow heating speed, mainly because the heat capacity of the heating device and the container itself is relatively large, and they must first absorb a large amount of heat to achieve the required temperature. In addition, in terms of temperature control detection, thermocouples are generally used. This method has the problem of slow response speed and low accuracy.

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