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Dry sharing, a minute to take you to understand the graphite cooler
Release time:
2022-11-07
The condensing temperature of the graphite cooler is affected by the outdoor wet bulb temperature, if it is a water-cooled system, it can reach the outdoor wet bulb temperature, the cooling water and refrigerant temperature is usually 5 degrees, for the molded plastic condenser, the condensing temperature of the refrigerant is related to the refrigerant's heat transfer characteristics and the temperature, and the refrigeration temperature is usually uncontrollable.
The condensing temperature of graphite cooler is affected by the outdoor wet bulb temperature, if it is water-cooled system, it can reach the outdoor wet bulb temperature, the cooling water and refrigerant temperature is usually 5 degrees, for molded plastic condenser, the condensing temperature of the refrigerant is related to the heat transfer characteristics and temperature of the refrigerant, and the refrigeration temperature is usually uncontrollable.
Graphite is a non-metallic material with good physical and mechanical properties and processing performance, excellent corrosion resistance and high thermal conductivity, therefore, it is an ideal material for manufacturing chemical anti-corrosion equipment.
With the continuous technological updating, technology introduction and expansion planning of chemical products, the demand for graphite coolers is getting bigger and bigger, and the number of graphite cooler manufacturers is increasing rapidly. In order to change and improve the performance of graphite capacitors, the original motor graphite is gradually changed to vibration molding of large and medium-sized graphite blocks, although the structural distribution, particle size and porosity of the vibration molding of the graphite blocks are more suitable than that of the motor graphite, but the graphite The overall function of the capacitor is improved accordingly, but technical specifications should be formulated to eliminate graphite motors as soon as possible, especially when the particle size is less than 0.8mm.
Graphite cooler performance is stable, insoluble in alkaline substances, it is made of graphite and polypropylene resin, has good corrosion resistance, and polypropylene has excellent chemical resistance, in addition to oxidizing solvents, in acid, alkali, salt solution inorganic compounds without damage, insoluble in all solvents at room temperature, can be used for alkanes, alcohol powder, lees, aldehydes and other media.
Advantages of graphite coolers are small size and light weight: due to the specific gravity (density) of polypropylene is only 0.91-0.93. It is a relatively light material in the resin, very simple, conducive to transportation, storage and maintenance, graphite capacitors have the function of high temperature resistance: due to the melting point of this material is 164-174. high temperatures of up to 110-125. stabilized in the absence of external forces in the case of 150. The low temperature of this configuration is -10. polypropylene has the function of non-scaling.
Correct use of graphite cooler:
1. graphite cooler heating: when used as a heater, the material should be introduced first, and then the introduction of heat carriers, heat carriers are introduced, the flow rate from small to large, the temperature from low to high, the equipment is introduced slowly to ensure that the equipment is heated uniformly, do not allow over-temperature or over-pressure, to prevent sudden changes in temperature due to gestation, damage to the equipment to prevent damage to the equipment caused by dry burning.
2. Cooling: Before using the condenser and cooler, open the exhaust valve at the top of the shell, first introduce the coolant into the shell, and then close it to hit, open the return pipe valve to convey the material, if there is any non-condensable gas in the shell that may reduce the efficiency of the heat transfer, it should be removed.
3. In the process of use, often discharge the non-condensable gas in the shell course and the condensate at the bottom, prohibit the sudden increase or decrease of temperature to avoid damage to the equipment, should be limited to rapid cooling and heating to prevent the formation of cracks in the pot due to excessive temperature stress, in order to prolong the service life of the equipment, we roughly choose the starting and stopping time.
4. graphite cooler should work within the technical specifications of the equipment to prevent over-temperature (allowable temperature: -20-165) and over-pressure (allowable pressure 0.4 MPa), it prevents the impact of the material and gradually adjusts to a large or small flow rate when the valve is turned on and off, open the exhaust valve on the top of the casing before using the equipment, and then remove and close the drain valve inside the casing.
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No. 16, Jiangtong North Road, Gangzha District, Nantong City, Jiangsu Province
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