Analysis of the energy-saving efficiency of air compressor hot water hot water unit Chen Hao, Chen Xiaofeng Jilin Jinen Nickel Industry Co., Ltd., Jilin meteorite 132311 efficiency between 0. 650.85. That is to say, under normal operating conditions, the screw air compressor supply temperature will be between 65 ° C 85 * C. According to the working principle of the air compressor, a large part of the energy it forms in the work will become the heat energy in the air through various other means. The air compressor hot water hot water unit is passed through the compression operation process to transfer the high temperature oil and gas heat energy to the normal temperature water through high efficiency heat exchange technology. Companies can use this thermal energy conversion to provide production and domestic hot water. It can be seen that the energy-saving efficiency of the air compressor hot water unit brings great benefits to our daily production and life. Scientific research and research will help to realize the sustainable recycling economy of resource recycling. Yiwen passed the research on the air compressor hot water unit to provide a basis for daily production and life. Most of the hot water supply in corporate life is done by fuel, gas, electric or solar energy. If calculated according to the fuel, according to the current average development situation, the cost of hot water per person per day is: 0.9 yuan / person - winter, 0.6 yuan / person in summer, an average of 0.75 yuan / person per day, the average monthly It is 22.5 yuan / person. A rough calculation of the annual hot water cost per person is 270.00 yuan. If the company calculates the hot water supply per year for every 1,000 enterprises, the economic expenditure will be 270,000 yuan, which does not include heat energy consumption, labor and boiler maintenance. Although the management model, heat generation method and cost control situation of each company are different, the above summary data is sufficient to show that the economic expenditure of hot water supply is an important part of current enterprise cost expenditure. 2 Benefits and effects of thermal energy utilization If the hot water hot water machine is installed on the basis of the existing air compressor, the following benefits and effects can be generated to produce zero operating cost. The air compressor hot water hot water unit does not need to burn oil, and the heat source generated by the heat source It is completely from the air compressor, and can effectively reduce the running time of the cooling fan, and also reduce the power consumption of the air compressor itself. Overall comparison, it is more energy efficient than other thermal energy manufacturing machines. As long as the air compressor is in operation, hot water can be supplied at zero cost, and its heat production is not affected by the weather. Since the lowering of the exhaust gas temperature can improve the working efficiency of the air compressor, the air compressor can increase the gas production rate by greatly reducing the oil temperature after installing the hot water unit, thereby reducing the operating cost of the air compressor and extending the air compressor. The service life of the air compressor. Zero waste heat, stable equipment, fully automatic operation, energy saving, environmental protection and safety. 3 Other advantages of hot water produced by hot water hot water unit Because hot water unit does not produce toxic substances such as carbon monoxide, sulfur dioxide, oil, black smoke and the like that can pollute the atmosphere during work, it is hot water compared with traditional oil-fired boilers. The unit has the characteristics of no pollution. And as long as the installation is started, the continuously operating air compressor continuously generates enough hot water to be used without the quantitative restrictions in the traditional way. Some qualified enterprises can even use the hot water supplied by the air compressor hot water unit in the winter to wash clothes and bedding and other daily necessities. 3.2 The thermal energy hot water unit can improve the operating efficiency of the air compressor and realize its economic operation. Theoretically speaking, the traditional oil supply temperature of the oil jet screw air compressor is between 65*C85*C, if its oil supply temperature is raised. At 10*C, the volumetric efficiency will drop by more than 2%, and the adiabatic efficiency will decrease at the same time. I. The equipment will be old or the volumetric efficiency and adiabatic efficiency will decrease even more under high load operation. However, according to recent statistics, the fuel supply temperature of the oil-injected screw air compressor is much larger than this range, generally between 65*C95*C, and the cooling and cooling fan will also run at around 85*C. The decline is between 4% and 8%, and the situation is even more serious in summer. The installation of the hot water unit in the air compressor can reduce the oil supply temperature by 8*C12*C, which shows that it has significant energy saving benefits. Under normal circumstances, the manufacturer of the air compressor will set the temperature setting of the unit's heat dissipation to 85*C, but since the operating temperature of the hot water unit is 8*C12*C lower than the operating temperature of the general air compressor, it will rarely Start the heat sink, which reduces the operation of the heat sink and can even be used without running. The operating temperature of the unit is reduced, on the one hand, the operation of the unit can be reduced, on the other hand, the operating efficiency can be improved, and the gas production and the air pressure of the gas supply system can be improved. 3.3 Low failure rate, reduced maintenance cost and long service life In the operation of the air compressor, once emulsification occurs, the carbonized particles will block the oil separator and the oil separator, and the operation of the machine will be seriously affected, resulting in a sharp increase in internal pressure. The consequence of the sudden increase in internal pressure is that the motor is overloaded, the temperature of the body is sharply high, the energy consumption is not said, and the service life of the air compressor is greatly reduced. Therefore, carbon deposition and emulsification are fatal factors affecting oil separator and oil separator performance and life. When the air compressor hot water unit is operated within 85*C, this can be effectively controlled. The operating temperature is reduced, the equipment failure rate is naturally reduced, and the service life is also increased. According to statistical surveys, the amount of hot water produced by the air compressor hot water unit is much larger than that of a typical oil-injected screw compressor. According to the statistical survey and analysis, under the same gas condition, if a 100HP air compressor uses a hot water hot water unit, the gas production rate will be effectively increased by more than 5% due to the decrease of the temperature of the circulating oil and gas. As a result, the power consumption will also drop, saving 55 yuan of electricity, according to 365 days a year, the annual electricity savings is about 20,000 yuan. 4 Comprehensive energy saving analysis and summary According to the general cognition, the specific heat capacity of water is 4 reference calculation formula () 2 C*M*dT\ can be obtained 1 000kg water in adiabatic state from 20 °C theoretical study 3 house building structure Several common problems in design 3.1 The use of ultra-long reinforced concrete structures Currently, ultra-long reinforced concrete structures are becoming more and more common in buildings, but the RC structure is relatively poor in crack resistance, and because of its function and appearance. The need for reinforced concrete structures is rarely provided with expansion joints, which often causes cracks in concrete buildings. The cracks are not only waterproof for the building - frost resistance, corrosion resistance of steel bars, and bearing capacity of the structure. It has a very serious impact, and it will also affect the aesthetics and service life of the building. The current methods of expanding the reinforcing belt and the post-casting belt have a good effect on compensating the shrinkage of the reinforced concrete structure. 3.2 PKPM series software application should pay attention to the problem First of all, based on the safety of structural design, the structural calculation of reinforced concrete must be periodically reduced, the relevant provisions have specific instructions, the calculation must refer to the relevant data . Secondly, select the appropriate number of structural modes, and the selection of the number of vibration modes is related to the number of layers and the structure of the structure. When the number of layers of the structure is relatively large or the stiffness of the structural layer is greatly changed, When there is a small tower at the top of the floor or a sudden change in other appearances, the larger number of modes should be taken. In addition, considering that the shear wall is very rigid, it is also subject to most of the seismic force, and the frame is only subjected to a small part of the seismic force. If the frame is designed according to the seismic force at this time, the shear wall Cracking will have a great safety hazard. Each of them (on page 29) improves the site management plan for aircraft maintenance on the bamboo system, thereby reducing the occurrence of maintenance errors. It fundamentally realizes the improvement of the efficiency of maintenance work, saves the company cost, and maximizes the benefits.
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