Mechanical transmission-free jet flow spray-adjustable cooling method and device

Abstract

The invention discloses a mechanical transmission-free jet flow spray-adjustable cooling method and device, and belongs to the technical field of jet flow ventilation cooling. The device comprises a mechanical transmission-free jet flow spray-adjustable cooling device body, and a middle water distribution topological pipeline and a bottom water distribution topological pipeline are sequentially arranged at the position from the high position to the low position along the gravity potential energy of a pipeline system topological layout adopted a topological layout; and the middle water distribution topological pipeline is provided with first-stage multilayer mechanical transmission-free fixed jet spray cooling spray head sets which are distributed in the circumferential direction, secondarymultilayer mechanical transmission-free fixed jet spray cooling spray head sets are arranged on the bottom water distribution topological pipeline, and a main water inlet pipeline is in communicationwith the middle water distribution topological pipeline and the bottom water distribution topological pipeline. The mechanical transmission-free jet flow spray-adjustable cooling method and device aim to break through bottlenecks of the prior art and subvert the traditional design, the traditional mechanical transmission air draft part device is completely replaced with the water return pressure,and thus a stable and reliable maintenance-free cooling tower is formed.

Description

technical field [0001] The invention belongs to the technical field of jet ventilation and cooling, in particular to a non-mechanical transmission jet spray adjustable cooling method and device. Background technique [0002] At present, the existing technologies commonly used in the ventilation cooling tower industry are as follows: open counterflow cooling towers commonly used at home and abroad mainly include traditional mechanical ventilation packing cooling towers, traditional mechanical ventilation filling spray cooling towers, traditional hydraulic fans without filling gravity return Water secondary spray cooling tower. [0003] The traditional mechanical ventilation packing cooling tower is forced by an electric mechanical fan. This kind of cooling tower relies on packing cloth liquid mass transfer, drives the mechanical fan by electricity, has mechanical transmission deceleration parts, and has a packing structure. There are several major problems in the above techn...

AI Technical Summary

Problems solved by technology

There are several major problems in the above technology: ①Continuous energy consumption, because the fan is driven by the motor; ②Regular maintenance is required, and replacement is due, because there are mechanical fan transmission and deceleration components in the core structure; ③Reliability continues to decline, due to mechanical transmission bearing components, etc. The service life is limited. With long-term continuous operation, the core mechanical fan deceleration transmission system will have reliability problems such as increased vibration and failure of operation balance; ④Regular maintenance and replacement are required, and the cooling effect will gradually decrease. Continuous operation, algae growth, dust accumulation, etc., will gradually block the gaps in the packing, resulting in a decrease in cooling efficiency, so regular cleaning, maintenance and replacement are required

There are several major problems with this technology: ①Continuous energy consumption, because the fan is driven by the motor; ②Regular maintenance is required and replaced when due, because there are mechanical transmission deceleration parts in the core structure; ③Reliability continues to decline, due to mechanical transmission bearing components, etc. The service life is limited. With long-term continuous operation, the core mechanical fan deceleration transmission system will have reliability problems such as increased vibration and failure of operation balance; ④The large flow resistance and poor cooling performance, because the nozzle components are concentrated vertically upward spray, the spray flow is concentrated In the center of the tower, the ventilation resistance at the bottom of the tower is very large, and the intake of cold air is greatly reduced, which eventually leads to poor cooling performance of the whole tower; And water pressure and other actual needs, not conducive to industrial application

There are several major problems in this technology: ① There is still the problem of continuous decline in reliability. Because the core structure of the swirling atomization propulsion fan device is still a mechanical transmission component, it is limited by the service life of the transmission bearing components. With long-term continuous operation, the rotating bearing The components will continue to wear out, the dynamic balance will fail, and the reliability will gradually decline, resulting in operational failures and shutdowns; ② still need regular maintenance and due replacement, because the core structure of the swirling atomization propulsion fan device is still a mechanical transmission part, its The intermittent operation of the bearing is small. When the downtime is too long or large-sized impurities or foreign objects are brought in, the bearing will stick or block intermittently, which requires regular inspection, cleaning, and cranking inspection. The bearing needs to be removed and replaced when it runs to a certain period; ③The flow resistance of heat return flow is large and the cooling performance is poor, because the gravity return water secondary spray layout is similar to the traditional mechanical ventilation spray cooling tower, and the nozzle assembly is also used to spray vertically upwards, the spray flow is concentrated in the center of the tower, and the spray flow falls The reverse wind is discharged from the bottom of the tower, resulting in great ventilation resistance at the bottom of the tower, and it is difficult to achieve the best cooling performance; ④Limited by the performance of the atomization propulsion device, the water density of a single tower is much lower than that of a traditional power tower. In order to enhance the atomization effect, The nozzle diameter is small, easy to block, and the actual cooling performance is poor, which is far from being compared with the mechanical ventilation cooling tower; ⑤The working conditions are not adjustable, and the operating condition range is narrow, which cannot meet the actual needs of users to adjust the circulating cooling flow and water pressure according to the production load. Demand, not conducive to industrial application

[0006] The above-mentioned cooling towers all need to be cooled by the ventilation components. After working for a long time, the maintenance costs brought by the ventilation components often make the enterprise overwhelmed

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