Everyone, please help discuss issues related to energy conservation in winter and ensuring the proper operation of equipment! !

1. The control of the circulating water concentration ratio should be determined based on the chemical dosing formula and the specific conditions of the heat exchange equipment. In winter, due to the low external temperatures, the circulating water can generally meet the requirements through radiation heat exchange from the surface of the water tank; therefore, the variable-frequency fans in the circulating water station can be turned off. If necessary, the amount of water supplied to the tower can be adjusted. As the amount of water evaporated decreases, the amount of water added as makeup water also needs to be reduced to avoid unnecessary waste. Moreover, some cooling systems have specific requirements regarding the temperature of the water supplied to them – for example, lithium bromide systems require a temperature of no less than 19 degrees. Thus, it’s not just a matter of energy conservation and emission reduction； The original poster is right; however, it’s appropriate to reduce the circulation rate, increase the temperature difference, and thus lower power consumption ； 2. For heat tracing, we use by-product steam (derived from the heat of chemical reactions), but it still needs to be controlled; for example, the pressure is generally kept around 1 kg/cm2. This is done both to save energy and because some of the pipes have a steel lining, so the temperature cannot be too high. 3. Low-pressure steam should be used as much as possible for heat exchange equipment, due to its high latent heat (not only in winter) ； Condensate water should be recovered as much as possible. In winter, the demand for steam increases, which in turn raises the amount of condensate water produced; moreover, there is so much sensible heat involved, so it’s a shame not to recover it! 4. Air conditioning heating temperature control ； 5. The steam trap must be in place and must not turn into a \"steam release valve\"“ ； 6. Use insulation materials with a low heat transfer coefficient, such as PU foam plastic and rock wool, with a value of less than 0.05 W/m·°C ； Check whether there are any equipment and pipes that were not taken into account during design and construction and that require insulation ； ........ 5、

1. The air cooler is equipped with an inverter-driven motor; louvers are used to adjust the temperature after cooling, in order to avoid starting the motor as much as possible； 2. Adjust the amount of circulating water used in the water cooler ； 3. Except that heavy oil pipelines are heated with steam, the pipelines for other media are heated with hot water ； 4. Minimize direct steam discharge; install traps at the points where steam is discharged directly ； 5. Ensure proper insulation for the pipelines.

Just passing by! I’m a beginner and don’t have any advice; I can only take a look at your opinions~~~~~~~~

Energy conservation is important, but maintaining stable production is even more crucial; whatever method is used, stable production must be ensured first.

The coolers at the Southern Refinery can be switched from water cooling to air cooling! Pay attention to keeping warm in the cold climate of the north!

I think it is very important to first carry out proper measures for preventing freezing and keeping warm, as well as taking precautions against poisoning, fire, and other related safety issues. It is essential to check the insulation of water pipelines as well as those for materials with low freezing points. Special attention should also be paid to protecting relevant instruments from toxic substances, as distortions in their readings due to low temperatures can cause serious problems. There is also much that can be done in terms of energy conservation. The operating hours of things such as circulating water fans and circulating water pumps can be reduced as appropriate. Daily supervision must be carried out properly. The quality of inspections must be ensured.

Winter and summer represent two extremes; winter is slightly better. During the first winter that our ion-exchange membrane caustic soda plant was in operation, we faced many difficulties, mainly related to materials and primary instruments such as soda ash, barium chloride, chlorine water, sulfuric acid, caustic soda, as well as the pressure guiding tubes of orifice flow meters and the pressure measurement sections of differential pressure transmitters. Therefore, I fully understand what you mean; in my opinion, it’s easier to maintain stable production in winter. Since we are in the south, winter temperatures don’t get too low, and the power grid is also more stable. Our ion-exchange membrane caustic soda plant operated continuously from November 2006 until June 2007, setting a record for 210 days of continuous operation.

It should also be noted that crystallization may occur in the originally saturated liquid materials (such as saturated brine) after cooling, and liquefaction may occur in pressurized gases (such as chlorine); all of these factors need to be taken into account.