CN-224230830-U - Mechanical ventilation cooling tower water recovery system

Abstract

The utility model relates to the technical field of water collection of cooling towers, in particular to a water recovery system of a mechanical ventilation cooling tower, which comprises a spread-connection wind cylinder which is arranged at an air outlet of the mechanical ventilation cooling tower and is communicated with the air outlet, wherein a water condensation structure is axially arranged inside the spread-connection wind cylinder, a sound wave generator is arranged on the inner peripheral wall of the spread-connection wind cylinder corresponding to the water condensation structure, the water condensation structure comprises a plurality of longitudinally arranged partition plates, and the sound production direction of the sound wave generator is intersected with the partition plates. According to the utility model, the sound wave generated by the sound wave generator is interacted with hot and humid air in the expansion air cylinder, the molecular motion state of water vapor carried in the hot and humid air is changed under the action of the sound wave, the condensation process of the water vapor is accelerated, the longitudinally arranged partition board is matched with the sound wave generator, the condensation effect is further promoted, water drops condensed under the action of the sound wave are adhered to the partition board, slide along the surface of the partition board for recovery, the water vapor amount discharged out of the tower along with the hot air is reduced, and therefore, the water evaporation loss of the cooling tower is remarkably reduced, and the utilization rate of water resources is effectively improved.

Inventors

• HAN LU
• SHAO HONG
• ZHU XIAOXIANG

Assignees

• 雄安清源智维科技有限公司

Dates

Publication Date

20260512

Application Date

20250616

Claims (10)

1. 1. The utility model provides a mechanical ventilation cooling tower water recovery system, includes tower body (100), catch basin (200), packing (300), water distribution device (400) and fan (500), the lower extreme of tower body (100) is located in catch basin (200), packing (300) and water distribution device (400) are all located in tower body (100), water distribution device (400) are located the top of packing (300), fan (500) are located tower body (100) upper end, characterized in that, still include set up at mechanical ventilation cooling tower air outlet and with the expansion connect dryer (600) that the air outlet is linked together, expansion connect dryer (600) inside along the axial be equipped with condensation structure (700), expansion connect dryer (600) inner peripheral wall on correspond condensation structure (700) and be equipped with sound wave generator (800); The condensation structure (700) comprises a plurality of longitudinally arranged partition plates (710), and the sounding direction of the sound wave generator (800) is intersected with the partition plates (710).
2. 2. The mechanical draft cooling tower water recovery system of claim 1 wherein said sonic generator (800) is a medium low frequency sonic generator (800).
3. 3. The mechanical draft cooling tower water recovery system of claim 2 wherein the frequency of occurrence of the sonic generator (800) is in the range of 100 to 2000hz.
4. 4. A mechanical draft cooling tower water recovery system according to claim 3 wherein said sonic generator (800) is a pneumatic sonic generator (800) driven with compressed air.
5. 5. The mechanical draft cooling tower water recovery system as recited in claim 4 wherein said baffle (710) is provided with a plurality of acoustic wave through holes (711).
6. 6. The mechanical draft cooling tower water recovery system of claim 4 wherein a valve is provided on the compressed air intake conduit connecting each of said pneumatic acoustic wave generators (800).
7. 7. The mechanical ventilation cooling tower water recovery system according to claim 1, wherein a water receiver (900) is further arranged inside the expansion air duct (600), and the water receiver (900) is located above the condensation structure (700).
8. 8. The mechanical draft cooling tower water recovery system of claim 1 wherein said extension duct (600) is made of fiberglass reinforced plastic.
9. 9. The mechanical draft cooling tower water recovery system of claim 1 wherein the surface of the partition (710) is provided with a hydrophilic coating (712).
10. 10. The mechanical ventilation cooling tower water recovery system according to claim 1, wherein the expansion air duct (600) is coaxially installed with the air outlet, annular supports are arranged at the upper end and the lower end of the expansion air duct (600), and supporting legs are arranged on the annular supports.

Description

Mechanical ventilation cooling tower water recovery system Technical Field The utility model relates to the technical field of cooling tower water collection, in particular to a mechanical ventilation cooling tower water recovery system. Background In industrial production, many processes generate a large amount of heat, and in order to ensure the normal operation of equipment and the stable progress of the process, the heat needs to be effectively dissipated. The mechanical ventilation cooling tower is used as a common cooling device, and the air and the cooling water are subjected to heat exchange in the tower in a mechanical ventilation mode, so that the temperature of the cooling water is reduced, and heat transfer and dissipation are realized. Mechanical ventilation cooling towers have found wide application in numerous industrial fields. The cooling device is mainly used for cooling exhaust steam of a steam turbine in a thermal power plant, cooling and condensing the exhaust steam discharged by the steam turbine into water for recycling, improving the energy utilization efficiency, can be used for cooling various reaction kettles, heat exchangers and other equipment in the chemical production process in the chemical industry, controlling the reaction temperature to ensure the smooth proceeding of chemical reaction, is used for cooling equipment such as a blast furnace, a rolling mill and the like in the metallurgical industry, maintaining the normal working temperature of the equipment, prolonging the service life of the equipment, and provides cooling circulating water for a central air conditioning system in the air conditioning refrigeration field to ensure the refrigeration effect of the air conditioning system. The mechanical ventilation cooling tower works on the principle that water to be cooled is conveyed to the top of the cooling tower under pressure and then uniformly sprayed on the filler through a water distribution system, and hot water falls from the upper part of the filler. At the same time, unsaturated air enters from the lower part of the tower body and flows upwards, and in the filler gap, hot water is fully contacted with the unsaturated air to perform cold-heat exchange. In the process, the air absorbs the heat of the hot water and is transferred upwards to finally become hot air, and the hot air is pumped out of the tower by the fan, so that the purpose of reducing the water temperature is realized. However, this mode of operation also has significant drawbacks, in that a large amount of water is evaporated during the heat exchange with air, resulting in considerable water resource losses. With the increasing severity of global water resource shortage, efficient use of industrial water is a critical issue to be addressed. In this context, acoustic wave-based water conservation techniques are increasingly emerging and evolving. The application of the sound wave technology in the water saving field brings new thought and possibility for solving the problem of water resource waste of the cooling tower. However, at present, how to effectively apply the acoustic wave technology to the mechanical ventilation cooling tower, so as to actually improve the water-saving effect of the mechanical ventilation cooling tower, and still the technical problem to be overcome is still urgent in the industry. Disclosure of utility model The utility model aims to provide a mechanical ventilation cooling tower water recovery system, wherein an air outlet of the mechanical ventilation cooling tower is provided with a diffusion air duct, and a condensation structure and an acoustic wave generator are arranged in the mechanical ventilation cooling tower, so that the acoustic wave generated by the acoustic wave generator is interacted with hot and humid air in the diffusion air duct, the molecular motion state of water vapor carried in the hot and humid air is changed under the action of the acoustic wave, the condensation process of the water vapor is accelerated, a longitudinally arranged baffle plate is matched with the acoustic wave generator to further promote the condensation effect, water drops condensed under the action of the acoustic wave are attached to the baffle plate and slide along the surface of the baffle plate for recovery, the water vapor amount discharged out of the tower along with the hot air is greatly reduced, the water evaporation loss of the cooling tower is obviously reduced, and the utilization rate of water resources is effectively improved, so that the technical problems of how to effectively apply the acoustic wave technology to the mechanical ventilation cooling tower and practically improve the effect are solved. The utility model is realized by the following technical scheme that the mechanical ventilation cooling tower water recovery system comprises a tower body, a water collecting tank, a filler, a water distribution device and a fan, wherein the water collecting tank