一种热电厂用的废水循环供给装置
By combining a bar screen filter box and a plate heat exchanger with a stirring and scraping structure inside the treatment tank, the pretreatment and heat recovery of high-temperature wastewater are solved, improving energy utilization and equipment efficiency, and realizing the efficient recycling of water resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG AISIJI MASCH MFG CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing wastewater recycling systems in thermal power plants are ineffective in pre-treating and heat recovery of high-temperature wastewater, leading to energy waste and equipment blockage. Furthermore, the filtration structure is not specifically designed for use before the heat exchange process.
The wastewater is initially filtered using a bar screen filter box, and heat recovery is achieved by combining it with a plate heat exchanger. The stirring rod and scraper structure inside the treatment tank ensure that the reagents and wastewater are fully mixed, and the sediment is cleaned by scraping. Solid-liquid separation and regular sludge discharge are achieved by combining it with a conical hopper.
It improves energy efficiency, reduces energy consumption in subsequent processing, extends equipment life, and achieves efficient solid-liquid separation and water resource recycling.
Smart Images
Figure CN224513221U_ABST
Abstract
Claims
1. A wastewater circulation supply device for a thermal power plant, comprising a treatment tank (1), a bar screen filter box (2), and a plate heat exchanger (4), characterized in that: The treatment tank (1) has a cylindrical structure, and the top of the bar filter box (2) is provided with a wastewater inlet (3). A delivery pump (5) is installed on the outer surface of the bar filter box (2). The pump (5) is connected to the plate heat exchanger (4) by a first wastewater conveying pipe (6). The outlet end of the plate heat exchanger (4) connected to the first wastewater conveying pipe (6) is connected to a second wastewater conveying pipe (7). The end of the second wastewater conveying pipe (7) is connected to the treatment tank (1).
2. The waste water circulating supply device for a thermal power plant according to claim 1, characterized by: The plate heat exchanger (4) is provided with a clean water inlet pipe (8) at the top, and a clean water outlet pipe (9) is connected to the outlet end of the plate heat exchanger (4) that is connected to the clean water inlet pipe (8).
3. The waste water circulating supply device for a thermal power plant according to claim 1, characterized by: The bottom of the processing tank (1) is provided with an integrally formed conical bucket (10), the top of one side of the processing tank (1) is connected to a feed pipe (11), and a motor (12) is installed in the middle of the upper surface of the processing tank (1).
4. The waste water circulating supply device for a thermal power plant according to claim 3, characterized by: The transmission end of the motor (12) passes through the processing tank (1) and is fixedly connected to a rotating rod (13). The outer surface of the rotating rod (13) is provided with uniformly distributed stirring rods (14).
5. The waste water circulating supply device for a thermal power plant according to claim 4, characterized by: The outer surface of the rotating rod (13) is also provided with a plurality of connecting rods (15). The ends of the connecting rods (15) are respectively connected to a first scraper (16) and a second scraper (17). The first scraper (16) is in contact with the inner wall of the processing tank (1), and the second scraper (17) is in contact with the inner wall of the conical bucket (10).
6. The waste water circulating supply device for a thermal power plant according to claim 3, characterized by: The outer surface of the treatment tank (1) is provided with a viewing window (18), and a number of vertically arranged drain pipes (19) are provided on one side of the treatment tank (1). A sewage pipe (20) is provided in the middle of the bottom of the conical bucket (10).