Introduction: Beijing Yitong Meida Energy Conservation and Environmental Protection Technology Co., Ltd. is the industrial platform of the cooling tower research center of Shandong University School of Energy and Power Engineering, and one of the few specialized companies in China that focuses on energy-saving services for natural ventilation cooling towers. The company has long been committed to the research of new energy-saving technologies, the development and production of new energy-saving products, and has many patents, such as small spacing and high-efficiency packing, packing layout optimization, air guide and rectification technology, and on this basis, it has implemented energy-saving renovation and new construction projects for cooling towers. The application of these energy-saving technologies and products is based on the air flow field in the cooling tower, the resistance characteristics of the water-spraying filler and the meteorological and hydrological environment conditions, with strong pertinence and good energy-saving effect. Generally speaking, under the same packing volume, the amplitude height (outlet temperature) can be reduced by 0.5-2.5℃ by applying one of our company's small spacing efficient packing, packing layout optimization, air guiding and rectifying technology and centrifugal splash device, and the comprehensive application effect is more remarkable. The company has the ability to produce a full range of core materials for cooling towers. There are four workshops: injection molding, extrusion, FRP and filler calendering, in which the extrusion workshop is used to produce horizontal jet, PVC dehydrator and water distribution pipe. Injection molding workshop is used to produce dehydrator fittings, splash-proof devices, etc. Calendering workshop is used to press and form water-drenched filler and trimming. The FRP workshop is used to produce FRP supports, handrails, etc. The company's annual production capacity can meet the demand of 20 9000m2 natural ventilation cooling towers. The company is also equipped with a professional installation team, which can provide users with all-round quality services. Patents and proprietary technologies owned by the company include: GXT-26 high-efficiency spraying filler, layout optimization of non-equal height spraying filler, layout optimization of spraying filler with different plate spacing, optimization of air guide and rectification system, and rotary spraying device. ? Generally speaking, the amplitude height (outlet water temperature) can be reduced by 0.5 ~ 2℃ by using one of the above patented technologies, and the comprehensive application effect is more remarkable. ? Description of parameters of GXT-26 high-efficiency water-spraying filler:? Length: 1000 10 height: 500 (750) 5 wave height: 25 1 chip pitch: 26 1 chip pitch: 50 1 assembly block size: (length× width× height): ? In terms of thermal performance and resistance performance, GXT-26 water jet packing patented by our company is superior to the conventional packing on the market at present. Its main features are: (1) different chip spacing and cooling area? At present, most commonly used water-jet fillers refer to national standards, and most of them are 30mm and 33mm apart. The spacing between the water-jet filler pieces developed by our company in cooperation with the well-known domestic thermal engineering research institute is 26 mm, which is less than the national standard. Under the same volume, the cooling area of the packing block with a distance of 26 mm is 65438 02% or 23.4% larger than that of the packing block with a distance of 30 mm and 33 mm, respectively. What is the distance between the water-drenching filler pieces? Number of fillers per cubic cooling area per cubic assembly block? 33mm？ 60 tablets? 155.4㎡30mm？ 66 tablets? 17 1.2㎡26mm？ 74 tablets? 19 1.7㎡? (2) Different waveform structures? The wave structures commonly used for drenching packing include S wave, double oblique wave and oblique folded wave. The cooling coefficient and ventilation resistance of different wave structures are also different. ? The wave structure of our GXT-26 packing is a new type of optimized oblique wave, which is similar to the high-efficiency oblique wave packing of foreign professional manufacturers (such as GEA company in Germany). ? (3) Are the thermal characteristics and ventilation resistance different? The third-party test conducted by Xi 'an Thermal Engineering Research Institute shows that the thermal characteristics of GXT-26 packing used in natural ventilation cooling tower are improved by 265,438 0% ~ 28% compared with the conventional oblique broken waves, and the ventilation resistance is 83%~99% of the conventional oblique broken waves. In a 5000m2 natural ventilation cooling tower, the outlet temperature of GXT-26 water-jet packing is 0.8 ~ 65438 0℃ lower than that of conventional interval oblique wave water-jet packing. Layout optimization of water-jet packing with different wave distances? In the reconstruction of the old tower, the height from the water splashing device to the packing layer will be seriously insufficient. In this case, the space for optimizing the non-contour layout is limited. Assuming that the original height of the packing layer is 1m and the height from the sprinkler to the packing layer is 0.5m, due to the limitation of the optimal spraying height of the sprinkler, the packing layer cannot be increased, that is, the capacity of the packing volume cannot be increased, and the non-contour layout cannot be optimized. At this time, similar to the energy-saving principle of non-contour layout optimization, another scheme can be adopted to improve the overall cooling performance of the cooling tower. That is, keeping the original volume unchanged, according to the characteristics of air flow field in different areas of the tower, it is divided into three areas: inner, middle and outer, and the three areas are respectively arranged with water-spraying fillers with different intervals. The cooling coefficient, volume coefficient and resistance coefficient of packing with different spacing are input, and the optimal radius division of three areas in the tower is obtained by model superposition calculation. Generally speaking, the distance between the water-jet filler pieces arranged in the inner periphery is the largest; The distance between the water-sprayed filler pieces located at the periphery is the smallest; The distance between the water-jet filler pieces arranged in the middle is between the above two. ?
Legal Representative: Dandan
Established: 2011-12-27.
Registered capital: 30 million yuan.
Industrial and commercial registration number:110105014526336.
Enterprise type: limited liability company (natural person investment or holding)
Company address: Room A-4380, Building 3, No.20 Yong 'an Road, Shilong Economic Development Zone, Mentougou District, Beijing