Good economic environment and social benefits. Foreword Air compressors are general-purpose machines and are the most widely used energy source in the industrial field. In most manufacturers, the energy consumption of compressed air accounts for 35. For the air compressor, about 80 of its input energy will be converted into heat energy, and it will be taken away by various cooler exhaust fans and discharged into the environment. These heat energy is not well utilized. If it can be properly modified according to the structure and principle of the corresponding type of compressor, the heat is recovered, and these heat sources are utilized in combination with the actual conditions of the factory, then the waste can be turned into a treasure, and the heat originally discharged into the environment can be collected and utilized. Reduce fuel consumption for heating for other uses. In 2, 7 years, Johnson & Johnson plans to update the injection screw furnace of station 160 to provide steam for the production process. The boiler system needs to replenish soft water about 301 per day. After long-term observation of air-cooled air compressors and communication with Ingersoll Rand, it was found that the R160ro160kW air compressor to be added can be fully heat-recovered, and can provide hot soft water with a temperature exceeding 601, and can be applied to the boiler. Preheating of hydration. Correspondingly reduce the principle of heat recovery of the air inlet screw of the boiler. The oil-cooled air compressor of the injection screw is the main oil in the market. The oil of the air-injection screw has a role in cooling. Sealing and lubrication 1. 1 Gas route 1 can be known that after the inlet head is compressed by the screw, the oil and gas mixture is discharged from the exhaust port, passes through the pipeline system, and the oil and gas separation system, enters the aftercooler, and reduces the high temperature compressed air to an acceptable level. Different manufacturers, the modified Ingersoll Rand compressor, the compressed outlet air after the aftercooler rated outlet temperature parameter is more than the environment 2 oil circuit when the oil and gas mixture is discharged from the host outlet, in the oil, i. For the oil-injected screw compressor, the main engine outlet oil temperature can reach 90105 injection temperature, that is, after cooling, it is controlled at around 65750. The input power of the oil-injected screw compressor is about 80% of the shaft power is taken away as heat through the cooler, which is dissipated in the environment. The cooler is divided into an air cooler and an oil cooler. According to the corresponding technical data, the oil cooler takes away approximately 45 55 of heat. If calculated by 50, then the heat dissipation of the oil cooler passed is about 4 kW of the input power of the air compressor. The cooling oil circuit can recover about 160 fathers and 4s. If the fully loaded 160kW air compressor is operated for 24h, the heat that can be recovered every day is P power, the unit is let; t time, the unit is 3. If the inlet water 200 is considered to be heated to 60, then the water temperature rises to determine how many tons of hot water Q heat can be heated per day by the compressor, in units of; temperature difference, unit is 1 or 1601 compressor operation days, through reasonable operation Reconstructing the compressor, without affecting the normal operation of the compressor, and integrating with the existing boiler water supply system, in theory, it is possible to increase the 32.91 water by 40 in the day, for boiler hydration and preheating, reducing fuel and natural gas. Consumption, while reducing emissions to the atmosphere. By adding heat exchangers and corresponding control devices to the oil circuit of the air compressor, it is possible to collect all or part of the heat originally taken away by the oil cooler exhaust fan to heat the soft water. Since the inlet temperature of the cooler can reach 901050, as long as there is a suitable heat exchanger, the counterflow heat transfer and the corresponding oil temperature and water temperature control measures can be used to easily raise the outlet water temperature to 6080, while ensuring the normal operation of the compressor. The collected hot water can be used in the corresponding production process to reduce the energy required for the original heating. The following is an example of the average recovery heating power 64, that is, 5529.6 towns are recovered every day, and the specific energy-saving significance of the heat value MJ is calculated. The diesel fuel 1 allows 8 to recover 5529.6 per day, and the oil recovery efficiency is 0.9, which is equivalent to saving diesel oil every day. Annual fuel consumption of fuel oil furnace = 934360 = 336291.9 yuan. The annual savings of fuel fuel meter is 3.6 million yuan and fuel is 7,000 yuan. The engineering department of Johnson & Johnson Co., Ltd., with the assistance of Ingersoll Rand engineers, conducted a detailed survey on the site. After detailed examination and analysis of the different parameters of the on-site system, the heat recovery plan was finalized. . Through the communication between the two parties, the main content of the transformation was confirmed. The oil-injected screw compressor provides high-quality heat source screw oil. Through control, the outlet water temperature can reach 60 or more. At the same time, because the air compressor station is next to the boiler house, the steam boiler needs to replenish soft water around 301 every day. The normal inlet water temperature is about 20, about the normal temperature water, and the hydration water is controlled according to the water level of the soft water tank. When the water level is low, the corresponding hydration is performed. The renovation will preheat the boiler make-up water by recovering the heat from the air compressor cooling oil. Specific system flow 2. The soft water is pumped out by the water pump, enters the heat recovery device of the air compressor, and the probe is installed on the oil cooler pipe to detect the oil temperature and control the frequency converter of the cooling exhaust fan. Under the premise of satisfying the normal oil temperature of the air compressor, the average temperature rise is 350 due to the relatively high temperature and the average hydration temperature is 250. The heating power is 51 to 1. Q1 heat, the unit is 耵; reduce the exhaust fan speed through the oil temperature probe, let the heat exchanger gather heat, use the circulating soft water to take away the heat of the heat exchanger, so that the soft water temperature rises and then enters the soft water tank through the water pump. Continue to cycle accordingly. The temperature of the water tank gradually increases, and the specific heating rate is related to the soft water circulation speed and other factors. In this heating mode, even if the pump fails, due to the feedback of the probe to the oil temperature detection, after the inverter receives the signal, the cooler exhaust fan accelerates to ensure the normal operation of the air compressor. The stop of the pump failure will not affect the normal hydration of the boiler. Of course, it will not affect the normal heat dissipation and work of the compressor. It will not have any negative impact on the original two systems and has high safety. . At the same time, due to the small amount of water circulating in the system, the selected pump power is less than 1.5, and the operation of the water chestnut does not generate a lot of extra power. The heat recovery integrated system transformation content 1 air compressor oil circuit cycle heat exchange transformation and control. , fan inverter control system. Pump + pipeline carbon steel pipe + insulation layer. After the smooth installation and commissioning, the data was observed. 3, 2 times, during the cycle heating supplement process, the water temperature of the water tank was observed to fluctuate within the range of 54671. The average tank temperature was the specific heat capacity of c water, 4.2 let 1ç. ;dt temperature difference, the unit is measured according to this capacity, if the diesel fuel can save heat in the whole year, if it is converted into natural gas, the same 4410 town 1 set the natural gas calorific value of 35824.5, the heat utilization rate is 85, which can be calculated to save natural gas every day. 144. Ribs. The natural gas cost is saved throughout the year. Because the water supply is lower than the design time, the inlet water temperature is higher than the design time. When the water tank temperature rises, the heat exchange amount will be affected. Therefore, the amount of recovery is slightly lower than that at design time. If the amount of water replenishment increases and the hydration temperature decreases, there is room for improvement in the recoverable heat. After a long period of operation on site, the heat recovery system fully meets the energy-saving requirements without affecting the normal operation of the compressor, and can fully meet the preheating requirements of boiler hydration and still have a margin. After several cycles, the target temperature was set to a maximum of 67 on-site temperature display 640, and the recovery effect completely reached the expected target. Through practice, the feasibility and rationality of the heat recovery of the oil jet screw air compressor and its huge energy saving benefits are proved. Energy saving increases boiler hydration temperature, reduces boiler heating, and reduces fuel or natural gas consumption. The oil-injected screw air compressor has a large share in the current market. It only needs to be properly modified to provide a high-quality heat source for boiler feed water preheating domestic hot water and air conditioning heating. The successful practice of heat recovery of a fuel injection screw air compressor of Johnson & Johnson China Co., Ltd. provides a case for reference for the use of screw compressors in energy conservation and emission reduction. The peers have helped. At the same time, the exhaust fan of the original cooler adopts frequency conversion control, which greatly reduces the wind noise of the exhaust fan. Therefore, the transformation of the air compressor heat recovery is not only energy saving and emission reduction, but also reduces noise. 1 volume 1.0.1 compressor manual Yang. Hep, wait, translate. Beijing China Petrochemical Press, 2003. 360 Security Camera For Car,360 Degree Bird View Camera For Car,360 Car Camera Kit,vehicle 360 camera system,360 surround view camera system car Shenzhen Future Automotive Technology Co,Ltd , https://www.futuredashcam.com