Fin type radiator efficient cooling sharp
Type B uses the national standard GB7148-81 and the international ISO7150/1-1948 standard salicylic acid photometric method as the basic test means, supplemented by sample colorimetric reaction pretreatment, to achieve rapid and accurate colorimetric determination of samples, with stable,SensitiveReliable and mercury-free.
A finned radiator is a heat dissipation device with metal fins. Its design structure is similar to a radiator plate, which can effectively transfer heat to a large area of air flow, thereby reducing the temperature of the device. This kind of radiator is commonly found in computer CPU, automobile engine and other equipment, and is widely used for heat dissipation treatment.
The working principle of the finned radiator is very simple. Through heat conduction, the heat generated by the device is transferred to the metal fins, and then the heat is dissipated into the air through the convection heat transfer of the air to the fins. Its advantages are that it has the characteristics of good heat dissipation effect, energy saving and environmental protection, and long service life. In addition, the finned radiator can also be customized according to the needs to meet the heat dissipation needs of different devices.
In modern industrial production, finned radiators play a vital role. With the continuous improvement of the performance of electronic equipment, the problem of heat dissipation is becoming more and more prominent, and the fin heat sink effectively solves this problem through its efficient heat conduction and heat dissipation function.
In general, the finned radiator, as an efficient cooling weapon, is of great significance in both electronic equipment and the automotive industry. Its excellent heat dissipation effect and reliability make it the first choice for heat dissipation design of many devices, and it also provides strong support for the development of various industries.
Key words: heat exchange equipment
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Type of ammonia nitrogen analyzer
Ammonia nitrogen analyzer according to the different test standards, there are A, B type. Type A is GB7479-87 by Nessler' s reagent colorimetric method. Type B adopts the national standard GB7148-81 and the salicylic acid photometric method specified in the international ISO7150/1-1948 as the basic testing method, supplemented by the sample colorimetric reaction pretreatment, to realize the rapid and accurate colorimetric determination of the sample, which has the advantages of stability, sensitivity, reliability and mercury-free.
Operation steps of ammonia nitrogen analyzer
Pour distilled water or ultra-pure water into a cuvette (about 2/3 height); wipe the water marks and fingerprints on the outer wall with a non-falling paper towel or soft cloth, then put it into the measuring seat of the instrument and cover the shading cover.
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