Air-cooled heat pump routine maintenance

Air-cooled heat pump is based on the centrifugal pump developed by the second generation of products, is now widely used in petroleum, chemical, rubber, plastics, pharmaceuticals, textiles, printing and dyeing, roads, food, etc. Industrial oil supply circulation system, heating medium heating system or fluid pressurization and transportation. So in daily life, how to maintain the pump? The following is about the daily maintenance of air-cooled hot oil pump introduction. Air-cooled heat pump routine maintenance 1, the heat pump shaft pump set in the front stuffing box, sealing performance is more reliable. It is normal to have a small amount of leakage early in operation, and the leakage will decrease or stop after the sealing surface has run through a certain period of time. 2, the transmission medium to the thermal pump oil pump cover and bearing the heat from the pump cover and bearing surface cooling, air-cooled heat pump to the local bearing temperature to adapt to the shaft sealing performance temperature. Therefore, the choice of conducting oil pump installation location, make the pump cover and bearing seat of the heat easily spread, do not appear the phenomenon of heat storage. 3, the bearing seat is provided with two bearings, each ball bearing running 3000 hours, you must remove the diesel fuel clean, check the contact surface is damaged, if damaged, you must replace the new bearing. After 48 hours of operation, use a grease gun to inject replenishment grease into the pressure cup on the bearing cap. 4, not allowed to enter the pipe gate valve to regulate the flow, to avoid cavitation. 5, the heat transfer oil pump should not be less than 30% of the continuous operation under the design flow, if you must operate under the conditions, it should be installed in the bypass bypass pipe exports, and to flow above the minimum. 6, often check the loose bolts anchor situation, heat pump oil pump casing temperature and inlet temperature are the same, the export pressure gauge fluctuations and pump vibration. 7, pay attention to the existence of noise conduction heat pump operation, such as the pilot state was found to be timely manner. 8, downtime: cut off the power. The heat transfer oil pump liquid venting, cleaning and should regularly rotate the impeller 180 degrees to prevent shaft deformation until the pump is completely cooled so far. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http://beng.liuti.cn/ (service hotline:)

Feed Additives refer to small or trace amounts of substances added during the production and processing of feed, and their use in feeds is small but has a significant effect. Feed additives are inevitable raw materials used in the modern feed industry, and have obvious effects on strengthening the nutritional value of basic feeds, improving animal performance, ensuring animal health, saving feed costs, and improving the quality of livestock products. Feed additives are divided into microbial feed additives and Chinese herbal medicine feed additives. Among them, the microbial feed additives is a microbial product that replaces or balances one or more bacterial lines in an animal ecosystem. In a narrow sense, Feed additives is a microbial product that can stimulate the reproduction and growth of beneficial strains of itself, while resisting the growth of harmful strains. Microbial feed additives contain a large number of beneficial bacteria (active lactic acid bacteria, bifidobacteria, bacillus), complex enzymes, chelating peptides, demolition agents, etc., as feed into livestock and poultry, can quickly reproduce. The metabolites and enterotoxin inhibit the growth of other harmful flora. On the other hand, it forms a normal microbial flora in the host, synthesizes the main vitamins for the host, provides nutrition and prevents the invasion of pathogenic bacteria.

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