[Original] Energy Saving and Consumption Reduction-Wei Chuanyi (Production Department)



Company is a pharmaceutical manufacturing enterprise. The production energy consumption and material consumption cost of the factory department have always been the focus of attention of the factory department leaders and the company leaders. In June this year, the factory department set up a special energy saving and consumption reduction team to count the energy consumption and material consumption data of the factory department on a weekly basis, and formulate corresponding energy saving and consumption reduction projects based on the statistical data.

At present, the factory department has also proposed some energy-saving and consumption-reducing projects, such as increasing the batch of raw material workshop varieties and improving the heating method of phenobarbital sodium, to reduce the monthly energy consumption of material consumption, and has achieved certain results. However, the current situation is that there is a lack of in-depth energy-saving projects, making it difficult to further the goal of energy-saving and consumption reduction. At present, we can only check more information, pay attention to all aspects of production, improve our own level, and hope to contribute to the company's energy saving and consumption reduction. The following is the method I got in a paper on energy saving and consumption reduction of cooling circulating water, to share with you. The current air-conditioning chiller of

factory is an open circulating cooling water system, with only the design of supply water tank, water pump, cooling tower and pipeline system and little water quality treatment. After several years of use, this kind of situation often occurs that the cooling tower water distributor does not move, the pipeline is corroded and fouled, and the efficiency of the heat exchanger is reduced. Only a large amount of new water can be replenished to improve the water quality, and only a small amount of high-quality water can hardly work. In severe cases, it will cause the chiller condenser to be blocked, causing the unit to fail at high temperature and high pressure, and even burn the compressor head. Therefore, the water quality treatment of cooling circulating water is very necessary.

The central air-conditioning chiller of the GMP clean plant of the Institute of Medical Biology of the Chinese Academy of Medical Sciences (the original Kaili machine in the United States) did not treat the cooling water quality in the first few years of operation, which not only wasted a lot of water, but eventually led to the blockage of the condenser and the burning of four heads. As a result, the operation and maintenance costs increased and the energy consumption increased. In the national energy saving activities, the Institute has made great achievements in strengthening the management of circulating water, energy saving and consumption reduction, especially in the energy saving and consumption reduction of circulating water in chillers. After the water quality treatment of the circulating cooling water, it has received a good effect of energy saving and consumption reduction. Institute is located in Kunming, mild climate, easy to breed bacteria, algae. Before treatment, a large number of impurities, dirt, bacteria and algae were accumulated, which caused the increase of water flow resistance and the decrease of heat transfer coefficient, resulting in small temperature difference of cooling water, which seriously affected the cooling effect. When the use of descaling corrosion inhibitor and sterilization algaecide treatment, the pipeline is smooth, the temperature difference of cooling water increases, the cooling effect is ideal, saving a lot of water, electricity energy consumption, and greatly reduce the operation and maintenance costs.