Sample temperature maintaining and drying method and device for industrial analyzer
A technology for industrial analyzers and drying devices, applied in the field of analytical instruments, can solve the problems of difficulty in realizing automatic operation, affecting test accuracy, and inaccurate testing, and achieves the effect of simple structure, elimination of manual operation, and realization of automation.
Inactive Publication Date: 2003-11-05
SANDE IND CHANGSHA
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Problems solved by technology
[0002] In the traditional industrial analysis method, the heated sample needs to be placed in a desiccator outside the instrument to cool to room temperature immediately after leaving the furnace (short-time cooling), and then taken out for weighing to prevent the sample from absorbing air. moisture, resulting in inaccurate testing
The disadvantage of this method is that the cooling time is long, the work efficiency is low, and it is difficult to realize automatic operation
At present, the existing industrial analyzers have improved the weighing and testing. The testing process of the sample is all completed in the instrument. However, when the sample leaves the furnace and is tested on the sample plate, it will also absorb the moisture in the surrounding environment. Especially in the humid season, which will affect the test accuracy
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[0011] The present invention is a concept based on the existing industrial analyzer. According to the characteristics of evaporation and drying of air containing moisture after being heated, a heating, heat preservation and drying device is arranged in the chamber of the industrial analyzer and around the sample plate containing the sample. The heating, heat preservation and drying device can wrap the entire sample plate to form a relatively independent space, and then sense the temperature change in the space through the sensor set on the device, and transmit the signal to the connected control system , The heating time of the heating source set on the heating and heat preservation device is controlled by the control system to ensure that the ambient temperature around the sample is at the set value, thereby achieving the technical effect of the present invention.
[0012] Such as figure 1 As shown, the present invention designs a heat preservation and drying device according to ...
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Inside the cavity of industrial analyzer, there is temperature maintaining and drying device around the sample disc to heat the sample disc. The sensor connected to the control system is used to control the heating time, so that the ambient temperature is maintained in the set value. The present invention includes a sample disc driven by the driving mechanism to rotate and with holes for crucible with sample to be set, constant temperature box for the sample disc to set inside, heating element connected to the power supply and sensor connected to the control system. The present invention can maintain the sample left from hearth in dry state, and may be used in automatized operation for high work efficiency and high test accuracy.
Description
Technical field: [0001] The invention relates to an analytical instrument for measuring the calorific value of solid or liquid combustible substances, in particular to a heat preservation and drying method and a designed device before testing after the sample is burned, and is mainly used for coal, petroleum, chemical, electric power, scientific research, and teaching And other industries or sectors. Background technique: [0002] In the traditional industrial analysis method, the heated sample should be placed in a desiccator outside the instrument to cool to room temperature immediately after leaving the furnace (elapsed cooling), and then taken out for weighing to prevent the sample from absorbing the air The moisture caused the test to be inaccurate. The disadvantage of this method is that the cooling time is long, the work efficiency is low, and it is difficult to realize automatic operation. At present, the existing industrial analyzers have been improved for symmetrical me...
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IPC IPC(8): G01N25/20
Inventor 吴汉炯朱先德
Owner SANDE IND CHANGSHA