一种转炉余热锅炉节能系统
By introducing a high-level steam drum, a blowdown tank, a low-level steam drum, and a three-way valve into the converter waste heat boiler system, combined with water quality monitoring and a porous heating tube structure, precise control of demineralized water and efficient recovery of steam heat energy are achieved. This solves the problem of waste of demineralized water and steam resources in the converter waste heat boiler system and reduces steelmaking production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANGANG STEEL CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the waste heat boiler system of converters results in the waste of high-quality demineralized water and steam resources during timed blowdown, and the lack of effective recycling measures leads to increased production costs.
It employs a high-level steam drum, a sewage tank, a low-level steam drum, and a three-way valve. The conductivity of the demineralized water is monitored by a water quality testing device to control the recovery and discharge of demineralized water. A porous heating tube structure is used to prevent high-temperature and high-pressure impacts, thus achieving precise control.
It effectively saves on the consumption of high-quality demineralized water, increases steam heat recovery, reduces production costs, prevents water quality from exceeding standards, and is easy to operate.
Smart Images
Figure CN224516744U_ABST
Abstract
Claims
1. A converter waste heat boiler energy saving system applied to a converter waste heat boiler, characterized in that, include: The high-level steam drum (1), the sewage tank (4), and the low-level steam drum (3) are as follows: The high-level steam drum (1) is connected to the sewage tank (4) through a sewage pipe. A three-way valve (2) is installed on the sewage pipe to form a first passage and a second passage. The first passage connects the high-level steam drum (1) and the sewage tank (4) to discharge the demineralized water in the high-level steam drum (1) to the sewage tank (4). The second passage connects the high-level steam drum (1) and the low-level steam drum (3) to recover the demineralized water in the high-level steam drum (1).
2. The energy saving system for a waste heat boiler of a converter according to claim 1, characterized by, The high-level steam drum (1) is also equipped with a water quality detection device to dynamically monitor the water quality of the demineralized water in the high-level steam drum (1) and control the switching of the three-way valve based on the conductivity detection results of the demineralized water.
3. The energy saving system for a waste heat boiler of a converter according to claim 2, characterized in that, When the conductivity k of the demineralized water is less than or equal to 50 μs / cm, the second passage is opened and the first passage is closed, and the demineralized water in the high-level steam drum (1) is recovered to the low-level steam drum (3); when the conductivity k of the demineralized water is greater than or equal to 50 μs / cm, the first passage is opened and the second passage is closed, and the demineralized water in the high-level steam drum (1) is discharged to the sewage tank (4).
4. The energy saving system for a waste heat boiler of a converter according to claim 1, wherein The second passage is a porous heating pipe structure, with the vent located below the lowest water level line of the low-level steam drum.
5. The energy saving system for a waste heat boiler of a converter according to claim 4, wherein The ratio of the total area of the vent holes to the effective cross-sectional area of the heating tube is 2:
1.
6. The energy saving system for a waste heat boiler of a converter according to claim 1, wherein The low-level steam drum (3) is also connected to a water supply pump (6). The input end of the water supply pump (6) is connected to the low-level steam drum (3), and the output end is connected to the high-level steam drum (1), which is used to supply water to the high-level steam drum (1).
7. The energy saving system for a waste heat boiler of a converter according to claim 1, wherein The three-way valve (2) is equipped with manual valves (5) on the connecting pipes in all three directions. The manual valves (5) are kept open when the three-way valve (2) is working normally and are kept closed when the three-way valve (2) is under maintenance.