High-temperature abnormity early warning system for ammonia desulfurization regeneration tower
By installing a multi-point temperature detection and inert gas protection system in the ammonia desulfurization regeneration tower, the safety hazards caused by the difficulty in temperature control have been solved, achieving efficient temperature monitoring and accident early warning, and improving the safety and operational stability of the equipment.
Patent Information
- Application Number
- CN202520216831.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In existing ammonia-based desulfurization regeneration towers, temperature control is difficult, leading to a high risk of shell cracking, fire, or even explosion. Furthermore, manual inspection is inefficient and poses a safety hazard.
Multiple temperature detection devices (first temperature measuring device, second temperature measuring device and third temperature measuring device) are installed in the ammonia desulfurization regeneration tower. Anomalies are judged by combining the temperature difference, and early warning signals are issued in a timely manner. Accidents are avoided by inert gas protection and hot air control.
It enables real-time monitoring of the regeneration tower temperature and timely early warning of anomalies, preventing fires and explosions in the regeneration tower, improving operational safety and stability, and reducing the waste of human resources.
Smart Images
Figure CN223760769U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of metallurgical coking technology, and more specifically, to a high-temperature anomaly early warning system for an ammonia-based desulfurization regeneration tower. Background Technology
[0002] During normal operation, the temperature in the middle of the ammonia desulfurization regeneration tower is controlled at 380℃-420℃, and the pressure is controlled at -150Pa-350Pa. Due to long-term wear of activated carbon and high temperature, the shell and welds of the ammonia desulfurization regeneration tower may crack, causing a large amount of air to enter the high-temperature section in the middle of the regeneration tower. Activated carbon and activated carbon powder will burn rapidly when they come into contact with air, causing a fire accident in the regeneration tower, and in severe cases, an explosion.
[0003] Currently, there is only one temperature sampling point in the middle of the regeneration tower, making it difficult for the system to promptly display abnormal temperature conditions. Manual inspections are ineffective due to the obstruction of the insulation layer and the low frequency of inspections. As a result, the equipment has a low operational safety factor, and manual measurement leads to a waste of human resources. Utility Model Content
[0004] The purpose of this application is to provide a high-temperature anomaly early warning system for an ammonia desulfurization regeneration tower, which monitors the operating temperature of the regeneration tower in real time, prevents fire accidents in the regeneration tower, and improves the stability of the regeneration tower's operation.
[0005] This application provides a high-temperature anomaly early warning system for an ammonia-based desulfurization regeneration tower, employing the following technical solution:
[0006] A high-temperature anomaly early warning system for an ammonia desulfurization regeneration tower includes a regeneration tower. A circulating material inlet pipe is installed at the upper end of the regeneration tower, and a first control valve is installed on the circulating material inlet pipe. A first temperature measuring device, a second temperature measuring device, and a third temperature measuring device are installed on the outer wall of the regeneration tower. The first temperature measuring device is located in the middle of the regeneration tower, the second temperature measuring device is located above the first temperature measuring device, and the third temperature measuring device is located below the first temperature measuring device. An air inlet pipe, a vent pipe, and a regeneration tail gas discharge pipe are installed on the side of the regeneration tower. The air inlet pipe is connected to a hot air furnace, the vent pipe is equipped with a vent valve, and the regeneration tail gas discharge pipe is equipped with a regulating valve. A pressure gauge is installed in the middle of the regeneration tower.
[0007] Preferably, the regeneration tower is provided with an inert gas inlet pipe, and a second control valve is provided on the inert gas inlet pipe.
[0008] Preferably, there are two inert gas inlet pipes, one of which is located above the first temperature measuring device and the other is located below the first temperature measuring device.
[0009] Preferably, the second control valve is a solenoid valve.
[0010] Preferably, the vent pipe is connected to a branch pipe, a third control valve is installed on the branch pipe, the hot air furnace is connected to a blower pipe, the blower pipe is connected to a combustion fan, and the branch pipe is connected to the blower pipe.
[0011] Preferably, the first control valve, the vent valve, the regulating valve, and the third control valve are all solenoid valves.
[0012] Preferably, the first temperature measuring device, the second temperature measuring device, and the third temperature measuring device are all K-type magnetic thermocouples.
[0013] Compared with the prior art, the beneficial effects of this application are as follows:
[0014] This application, by setting up a first temperature measuring device, a second temperature measuring device, and a third temperature measuring device, can perform multi-point real-time monitoring of the temperature inside the regeneration tower. When the reading of the first temperature measuring device is the same as the reading of the second temperature measuring device or the reading of the third temperature measuring device, the system will indicate that the temperature in the middle of the regeneration tower is abnormal and issue an early warning signal. When the difference between the readings of the first temperature measuring device and the second temperature measuring device or the difference between the readings of the first temperature measuring device and the third temperature measuring device is greater than 20°C, the system will indicate that the temperature in the middle of the regeneration tower is too high and issue an early warning signal. At the same time, the hot air furnace will be shut down to stop heating, the first control valve will be closed, and the conveying of desulfurization circulating materials will be stopped, thereby avoiding the occurrence of subsequent serious accidents. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of some embodiments of the present utility model.
[0017] The reference numerals in the attached figures are as follows:
[0018] 1. Regeneration tower; 2. Circulating material inlet pipe; 3. First control valve; 4. First temperature measuring device; 5. Second temperature measuring device; 6. Third temperature measuring device; 7. Air inlet pipe; 8. Vent pipe; 9. Regeneration tail gas discharge pipe; 10. Hot air furnace; 11. Vent valve; 12. Regulating valve; 13. Pressure gauge; 14. Inert gas inlet pipe; 15. Second control valve; 16. Branch pipe; 17. Third control valve; 18. Blower pipe; 19. Combustion fan. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] Example
[0026] like Figure 1 As shown in the embodiment of this application, the high temperature anomaly early warning system for the ammonia desulfurization regeneration tower includes a regeneration tower 1. A circulating material inlet pipe 2 is provided at the upper end of the regeneration tower 1. A first control valve 3 is provided on the circulating material inlet pipe 2. A first temperature measuring device 4, a second temperature measuring device 5, and a third temperature measuring device 6 are provided on the outer wall of the regeneration tower 1. The first temperature measuring device 4 is located in the middle of the regeneration tower 1, the second temperature measuring device 5 is located above the first temperature measuring device 4, and the third temperature measuring device 6 is located below the first temperature measuring device 4. The first temperature measuring device 4, the second temperature measuring device 5, and the third temperature measuring device 6 are all provided with multiple sampling points on the same level. Thus, if the temperature of any sampling point is too high, it is considered abnormal. An air inlet pipe 7, a vent pipe 8, and a regeneration tail gas discharge pipe 9 are provided on the side of the regeneration tower 1. The air inlet pipe 7 is connected to a hot air furnace 10. A vent valve 11 is provided on the vent pipe 8. A regulating valve 12 is provided on the regeneration tail gas discharge pipe 9. A pressure gauge 13 is provided in the middle of the regeneration tower 1. The pressure gauge 13 is used to detect the gas pressure in the middle of the regeneration tower 1.
[0027] During operation, the first temperature measuring device 4 detects the temperature in the middle of the regeneration tower 1, the second temperature measuring device 5 detects the temperature in the upper part of the regeneration tower 1, and the third temperature measuring device 6 detects the temperature in the lower part of the regeneration tower 1. When the reading of the first temperature measuring device 4 is the same as the reading of the second temperature measuring device 5 or the reading of the third temperature measuring device 6, the system indicates that the temperature in the middle of the regeneration tower 1 is abnormal and issues a warning signal. When the difference between the readings of the first temperature measuring device 4 and the second temperature measuring device 5 or the readings of the first temperature measuring device 4 and the third temperature measuring device 6 is greater than 20°C, the system indicates that the temperature in the middle of the regeneration tower 1 is too high and issues a warning signal. At the same time, the hot air furnace 10 is shut down to stop heating, the first control valve 3 is closed, and the conveying of desulfurization circulating materials is stopped, thereby avoiding the occurrence of subsequent serious accidents.
[0028] In this embodiment, an inert gas inlet pipe 14 is provided on the regeneration tower 1, and a second control valve 15 is provided on the inert gas inlet pipe 14. When the system prompts that the temperature in the middle of the regeneration tower 1 is too high and issues a warning signal, the hot air furnace 10 is shut down to stop heating, the first control valve 3 is closed, and the conveying of desulfurization circulating materials is stopped. Then, the second control valve 15 is opened, and inert gas is introduced into the interior of the regeneration tower 1 through the inert gas inlet pipe 14. The regulating valve 12 on the regeneration tail gas discharge pipe 9 is interlocked to make the pressure in the middle of the regeneration tower 1 positive, thereby avoiding the occurrence of subsequent serious accidents.
[0029] In this embodiment, there are two inert gas inlet pipes 14. One inert gas inlet pipe 14 is located above the first temperature measuring device 4, and the other inert gas inlet pipe 14 is located below the first temperature measuring device 4. In use, inert gas can be simultaneously introduced into the upper and lower ends of the high-temperature section in the middle of the regeneration tower 1 to accelerate the inert gas introduction speed.
[0030] In this embodiment, the second control valve 15 is a solenoid valve. Solenoid valves have the characteristics of fast response and accurate control, and can quickly cut off the fluid in an emergency to ensure the safety of the system. They are also relatively simple to install and maintain.
[0031] In this embodiment, the vent pipe 8 is connected to a branch pipe 16, and a third control valve 17 is installed on the branch pipe 16. The hot air furnace 10 is connected to a blower pipe 18, and the blower pipe 18 is connected to a combustion fan 19. The branch pipe 16 is connected to the blower pipe 18. In use, the vent valve 11 is closed and the third control valve 17 is opened to allow the gas to return to the hot air furnace 10, thereby enabling the hot air to be recycled and reused, improving resource utilization and reducing energy consumption.
[0032] In this embodiment, the first control valve 3, the vent valve 11, the regulating valve 12, and the third control valve 17 are all solenoid valves. Solenoid valves have the characteristics of fast response and accurate control, and can quickly cut off the fluid in an emergency to ensure the safety of the system. They are also relatively simple to install and maintain.
[0033] In this embodiment, the first temperature measuring device 4, the second temperature measuring device 5, and the third temperature measuring device 6 are all K-type magnetic thermocouples. K-type magnetic thermocouples have strong attraction and do not require a complicated installation process, which improves the convenience and flexibility of installation, and at the same time will not damage the shell of the regeneration tower 1.
[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An ammonia desulfurization regeneration tower high temperature anomaly early warning system, characterized in that: The regeneration tower is provided with a circulating material inlet pipe at its upper end, and a first control valve is arranged on the circulating material inlet pipe.
2. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 1, characterized in that: The regeneration tower is provided with an inert gas inlet pipe, and a second control valve is arranged on the inert gas inlet pipe.
3. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 2, characterized in that: The inert gas inlet pipe is provided with two, one of which is located above the first temperature measuring device, and the other is located below the first temperature measuring device.
4. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 3, characterized in that: The second control valve is an electromagnetic valve.
5. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 1, characterized in that: The dispersing pipe is connected with a branch pipe, the branch pipe is provided with a third control valve, the hot blast furnace is connected with a blast pipe, the blast pipe is connected with a combustion air fan, and the branch pipe is connected with the blast pipe.
6. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 5, characterized in that: The first control valve, the dispersing valve, the adjusting valve and the third control valve are all electromagnetic valves.
7. The ammonia desulfurization regeneration tower high temperature anomaly early warning system according to claim 1, characterized in that: The first temperature measuring device, the second temperature measuring device and the third temperature measuring device are all K-type magnetic suction thermocouples.