CNG sub-station compressors are favored for energy saving and emission reduction

CNG sub-station compressors are favored for energy saving and emission reduction

Based on the actual operation test of the first generation product for nearly a year, Xi’an Kunlun Hydraulic Transmission Co., Ltd. has completed the second generation of improved hydraulic drive CNG (compressed natural gas) sub-station compressor after continuous improvement and innovative design The research and development of this product is well received by the market. After performance testing, the new product has not only further improved its performance in energy saving, consumption reduction, emission reduction, environmental protection, etc., but also greatly improved its work efficiency. Its comprehensive performance surpassed similar foreign products and reached the international leading level. After the product is used in the car refueling sub-station, it can greatly reduce the operating cost of the refueling station and eliminate environmental pollution, especially in terms of power consumption, which can be reduced by more than 60%.

Xi’an Kunlun Hydraulic Transmission Company, a subsidiary of Xi’an Kunlun Group Corporation, has developed this kind of high-efficiency, energy-saving, consumption-reducing, emission-reducing, and environmentally-friendly new hydraulic-driven CNG substation compressor product, which fills in the domestic use of hydraulic drive principles to achieve gas A gap in compression technology and two national utility model patents

　　As the main equipment of CNG car filling station, the performance of compressor products plays a very critical role in the operating cost and efficiency of the filling station. Therefore, continuous improvement of product performance, improvement of compressor work efficiency, reduction of energy consumption, reduction of exhaust emissions, improvement of equipment reliability, and reduction of daily maintenance costs have always been the direction of technological innovation in compressor research and development and manufacturing industries. Xi’an Kunlun Hydraulic Transmission Co., Ltd. started to develop hydraulically driven CNG compressors based on the technical accumulation of many years in the production of hydraulic system products and the design and manufacture of oil cylinders and cylinder products under the advice of industry insiders in early 2007, and it was completed in July 2007. The trial production of the first-generation prototype has been achieved and initial success has been achieved. The batch production of 35 sets has been achieved, and all of them have been sold and put into use. After being used by many car refueling stations, the product has shown superior performance characteristics in terms of energy saving, consumption reduction, emission reduction and environmental protection. After using the product at the gas station on Zaoyuan West Road in Xi’an, the monthly electricity bill was reduced from about 20,000 yuan to more than 7,000 yuan. Even the electricity fee collection unit came to check the line several times and mistakenly believed that the gas station was stealing electricity.

　　 Compared with the conventional natural gas compressor products commonly used at present, the main advantages of the new hydraulic drive compressor products developed by Xi'an Kunlun Hydraulic Transmission Company are shown in the following aspects: First, high efficiency. The new hydraulic drive compressor adopts a soft seal form, which effectively improves the compression efficiency. Under the same driving power condition, the average displacement of compressed gas can be more than doubled. The second is energy saving. Most of the domestic CNG vehicle filling stations use positive displacement compressors. In the case of the same scale, the cost competition is mainly reflected in energy consumption. The third is consumption reduction, emission reduction and environmental protection. The new hydraulic drive compressor has no tail gas emissions, which not only saves natural gas, reduces operating costs, but also reduces environmental pollution. The fourth is strong applicability. Due to the low power of the motor used in the new hydraulic drive compressor (no more than 37kW, while the power of the conventional compressor is basically above 75kW), and the soft start method, it has low requirements on the connected power grid and has a low power grid The impact is small, which not only reduces the investment in station construction and the instantaneous power consumption of the motor starting, but also does not affect the surrounding electricity users due to the impact on the grid.