How to do instrumentation winter protection measures? The measures taken are usually: selection, insulation with heat, maintenance (point inspection, sewage) and so on. First, the selection of measures with insulation device type instrument. According to the type of instrument uses and intended to install the geographical position, put forward the instrument insulation frost demand, and then submitted to deal with the manufacturers. North somewhere in the day and night temperature is too large, at night can reach -20 degrees, if from the type to solve the cost is quite large uneconomical.Select two, insulation measures Insulation with insulation material, that is, with insulation materials will be easy to freeze or Afraid of frozen parts pack up. Winter approaching to check, regular sewage, to prevent the packaging of insulation material damage. Third, the heat tracing measures 1, steam tracing measures Even the use of pipe steam heating insulation. Before the winter insulation to send steam to check whether the steam insulation pipeline is unblocked or blocked. The best steam is 24 hours pass, do not be too hot, and sometimes according to the temperature changes to adjust the temperature for the amount of steam to prevent the temperature is too high to make the transmitter pressure tube condensate vaporization affect the transmitter or due to temperature Too low the transmitter pressure tube condensate freezing affect the smooth flow of the transmitter. 2, thermal protection box measures a, electric heat tracing box, from the box, heater, instrument brackets and other three major components, the same structure and protection box, the difference is the box with electrical heating device, From the structure shown in Figure, the electric device is composed of electric heating pipe, temperature controller, the side of the box with a socket, when connected to the power supply, the box heated to the desired temperature, and then by the temperature controller connected to the power to continue warming . Through repeated work so that the temperature inside the tank can be maintained within a certain range. The thermostat heater main parameters: ⑴, rated voltage 200V.50Hz ⑵, rated power 300 ~ 500W ⑶, control the temperature can be customized ⑷, thermostatic heater can also be made explosion-proof ⑸, there are three kinds of electric tube material: copper Tube, carbon steel tube, stainless steel tube. b, the steam pipe heat insulation box, the heat pipe is made of metal pipe S-type structure. The upper and lower welded welded bulkhead connector and the heat pipe welded together, with the heat pipe installed in the box for the next out, through the steam in Intraluminal circulation to achieve the purpose of heating. Heat pipe materials are generally divided into two types, namely, copper pipe, seamless steel pipe (carbon steel). c, plus a layer of insulation for the key instrument box cotton, in the incubator door and the inlet and outlet with plastic seal, instrument system can achieve better insulation antifreeze effect. 3, electric heating measures Electric heat and heat insulation technology is a new type of direct conversion from electricity to heat energy heating technology. Install insulation cables, will be accompanied by tropical, wrapped around the instrument, or stick inside the instrument cabinet (but pay attention to the length of the used tropical, economical and reasonable). It is suitable for single-phase constant-power electric heating with heat tracing, freezing-thawing and heat-preservation of the pipeline, pump body and maintaining the process temperature of the instrument pipeline. The unit length of heat is constant. The output power is not changed by the ambient temperature. Proportional, at the time of installation can be arbitrary splicing, but must retain a heating section (that is, at least 2.5m), the outer braid with heat transfer, heat dissipation, at the same time as a safe anti-static grounding. Mainly used for all kinds of pipes, instruments, antifreeze, heat, the maximum temperature to maintain 150 ℃. Note: The temperature of the liquid pipelines require strict control of heating and insulation (temperature controller must be equipped with). There is also a product on the market that is a flexible package of electric heat protection sleeve, specifically for space with relatively small instrument with heat, explosion-proof, mainly installed in the instrumentation of the pressure pipe and valve. Fourth, maintenance measures 1, the installation of a reasonable choice of installation location: dry, no snow drip place. 2, the inspection measures when conditions by the person every day on the insulation material is damaged, the steam pipeline is blocked for technical confirmation and technical disposal. 3, the alarm measures conditional can be installed steam leak or power-off sound and light alarm device to facilitate the detection of hidden dangers of antifreeze insulation and timely remediation. 4, inspection measures by the regional instrumentation maintenance personnel scheduled patrol inspection route regularly. Inspection to check the insulation pipe valve is normal, the incubator is normal, the hydrophobic device is normal, insulation material packaging is intact, with heat power supply components are normal. Frozen device instrumentation key inspection and inspection records, instrumentation and its insulation freezing measures to dry, complete and clean maintenance, timely solution to the problem of insulation with heat in the field. More Keyword Search: Instrumentation
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