一种热湿空气除湿再加热装置
By using a circulation path consisting of a precooling tower, a dehumidification tower, and a cooling tower, combined with a direct contact design and a tube-fin heat exchanger, the problems of low efficiency and energy waste in the dehumidification and dust removal system of the sludge dryer are solved, achieving efficient dehumidification and energy recovery, and reducing equipment costs and floor space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TECHASE ENVIRONMENT PROTECTION CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing sludge dryer dehumidification and dust removal systems suffer from problems such as reduced gas handling load, high heat transfer resistance, large equipment footprint, high maintenance costs, low dehumidification efficiency, and energy waste.
The system employs a circulation path consisting of a precooling tower, a dehumidifying tower, and a cooling tower. Through direct contact design and a tube-fin heat exchanger, it achieves precooling, dust removal, dehumidification, and reheating of hot and humid air, thereby optimizing energy utilization.
It improves dehumidification efficiency, reduces heat transfer resistance and equipment footprint, reduces maintenance costs and energy consumption, and achieves self-sufficient water resource utilization and long-term equipment operation.
Smart Images
Figure CN224513365U_ABST
Abstract
Claims
1. A heat and moisture air dehumidifying and reheating device, characterized by, include: A precooling tower and a dehumidification tower, wherein the precooling tower is connected to the dehumidification tower and the heat exchange assembly via pipelines, and the dehumidification tower is connected to the precooling tower, the heat exchange assembly and the cooling tower via pipelines; The precooling tower, dehumidification tower, and heat exchange components are connected by a pipeline that forms a first circulation path, and the dehumidification tower and the cooling tower are connected by a pipeline that forms a second circulation path.
2. The heat and moisture air dehumidifying and reheating apparatus according to claim 1, wherein The heat exchange assembly includes a preheater and a reheater, both of which are tube-fin heat exchangers.
3. The heat and moisture air dehumidifying and reheating apparatus according to claim 2, wherein The top of the reheater is connected to an external heating source via a pipe, and the reheater is used to reheat the heated air.
4. The warm moist air dehumidifying and reheating apparatus according to claim 1, wherein The precooling tower has a first air inlet on one side, which is connected to a dryer. The dryer continuously generates unsaturated hot and humid air through sludge drying operations. The precooling tower has a first air outlet on the other side, which is connected to a dehumidification tower. The precooling tower is used to precool the unsaturated hot and humid air by circulating cooling water.
5. The heat and moisture air dehumidifying and reheating apparatus according to claim 4, wherein The precooling tower is equipped with a spray assembly, which is used to spray cooling water to exchange heat with unsaturated hot and humid air.
6. The warm moist air dehumidifying and reheating apparatus according to claim 4, wherein The precooling tower is provided with a first liquid inlet at the top, which is connected to the top of the preheat exchanger; the precooling tower is provided with a first liquid outlet at the bottom, which is connected to the bottom of the preheat exchanger, which is used to preheat the air after cooling and dehumidification.
7. The heat and moisture air dehumidifying and reheating apparatus according to claim 4, wherein The precooling tower and the preheat exchanger are connected by a first water pump, which is used to pump the heated circulating cooling water inside the precooling tower to the preheat exchanger.
8. The warm moist air dehumidifying and reheating apparatus according to claim 1, wherein The dehumidification tower has a second air inlet on one side, which is connected to the precooling tower; the dehumidification tower has a second air outlet at the top, which is connected to the heat exchange component. The dehumidification tower is used to remove dust and moisture from saturated hot and humid air by circulating cooling water.
9. The hot and humid air dehumidification and reheating device according to claim 8, characterized in that, The dehumidification tower is provided with a second liquid inlet and a second liquid outlet at the bottom. The second liquid inlet and the second liquid outlet are connected to the cooling tower, which is used to cool the circulating cooling water heated in the precooling tower and the dehumidification tower.
10. The warm moist air dehumidifying and reheating apparatus according to claim 8, wherein The dehumidification tower and the cooling tower are connected by a second water pump, which is used to pump the circulating cooling water that is cooled inside the cooling tower to the dehumidification tower.