Navodila za globino vstavitve za bimetalne termometre in termični upori

Bimetalni termometri so razdeljeni na tri vrste: navadni tip, tipa na prostem in protikorozijski tip . Navadna vrsta ima galvanološko železno lupino in zaščitno cev iz nerjavečega jekla, ki je primerna za splošno uporabo v zaprtih prostorih ., ki ima Aluminum, ki ima aluminirano lupino, ki ima Aluminium, ki ima ALUMINUM, ki ima ALUMINUM SHELL, ALUMINUM SHELL, ALUMINUM SHELL, ALUMINUM SHELL, ALUMINUM SHELL ima ALUMUM SHELL, ALUMUM steel. It has good sealing performance and is suitable for indoor and outdoor use and general corrosion-resistant places. The anti-corrosion type has a full stainless steel shell, and the protective tube and connecting column can be made of molybdenum-titanium material. The connecting parts are all sealed with sealant, which can be used for the measurement of most corrosive media and gases. When the temperature changes, the two different materials of the bimetallic strip have relatively large differences in linear expansion coefficients, resulting in different expansion and contraction, causing the bimetallic strip to bend and deform. The thermal resistor with a protective sleeve has heat transfer and heat dissipation Izgube . Da bi zmanjšali napake v meritvah, bi morali imeti bimetalni termometer in termični upor zadostno globino vstavitve:
1. Za toplotne upore, ki merijo temperaturo tekočine v središču cevovoda, je treba merilni konec na splošno vstaviti v sredino cevovoda (navpično ali nagnjeno) ., če je premer cevi izmerjene tekočine 200 mm;

2. For the temperature measurement of high-temperature, high-pressure and high-speed fluids (such as main steam temperature), in order to reduce the resistance of the protective sleeve to the fluid and prevent the protective sleeve from breaking under the action of the fluid, the protective tube can be shallowly inserted or a heat sleeve thermal resistor can be used. The shallow insertion thermal Zaščitni rokav upor je treba vstaviti v glavno parno cev v globino najmanj 75 mm; Standardna globina vstavitve toplotnega upornega upora je 100 mm;

3. Če je treba izmeriti temperaturo dimnega plina v dimni, tudi če je dimnik 4 m, je globina vstavitve toplotnega upora 1 m;

{{0 {