Quenching tower working condition monitoring test equipment
By installing a simulated flue gas input device and a coolant supply device inside the quench tower, combined with temperature measuring points and a whistle velocity meter, the problem of difficult monitoring of three-dimensional flue gas flow field parameters in the quench tower was solved, enabling accurate measurement of flue gas temperature and flow rate, and reducing the generation of dioxins.
Patent Information
- Application Number
- CN202520095333.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing technologies lack effective monitoring methods, especially for monitoring the three-dimensional flue gas flow field parameters and quenching time of the quench tower, making it difficult to control the generation of dioxins during hazardous waste incineration.
A test device for monitoring the operating conditions of a quench tower was designed, including a simulated flue gas input device, a coolant supply device, temperature measuring points, and a whistle-shaped velocity meter. These components are used to monitor the flue gas temperature and flow rate in the quench tower in real time, and the height of the measuring points is adjusted by a position adjustment component to achieve accurate measurement of three-dimensional flue gas field parameters.
It enables precise monitoring of flue gas temperature and flow rate inside the quench tower, ensuring that the flue gas temperature drops below 200°C within 1 second, reducing dioxin generation and optimizing the operation control of the quench tower.
Smart Images
Figure CN223649952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of flue gas simulation treatment equipment, and in particular to a test device for monitoring the operating conditions of a quench tower. Background Technology
[0002] Hazardous waste is generally disposed of by incineration. Specifically, after incineration in a rotary kiln, the high-temperature flue gas produced enters the secondary combustion chamber, where it stays for more than 2 seconds. The flue gas temperature at the outlet is above 1100℃, followed by waste heat recovery and flue gas treatment.
[0003] Toxic dioxins are generated during hazardous waste incineration. To reduce dioxin production, the high-temperature flue gas generated from waste incineration should be rapidly cooled to reduce the flue gas temperature to below 200°C within 1.0 second, thereby reducing the residence time of the flue gas in the 200-500°C temperature range. At the same time, the temperature, residence time, and flow conditions of the flue gas in the combustion chamber should be strictly controlled. Therefore, real-time monitoring of the quench tower's operating conditions can significantly optimize the management and control of the quench tower and effectively reduce dioxin production.
[0004] However, in the current production process, it is difficult to judge the operating status of key equipment for hazardous waste incineration and there is a lack of advanced and effective monitoring methods, especially the lack of monitoring technology for the three-dimensional flue gas flow field parameters and quenching time of the core equipment, the quench tower. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a test device for monitoring the operating conditions of a quench tower.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A quench tower operating condition monitoring and testing device includes a quench tower, a simulated flue gas input device, and a coolant supply device, wherein the output ends of the simulated flue gas input device and the coolant supply device are both connected to the upper port of the quench tower.
[0008] The quench tower is provided with several layers of temperature measuring points from top to bottom. Above and below the lowest layer of temperature measuring points in the quench tower, there are first and second layer flute-shaped speed meters, respectively.
[0009] It also includes a position adjustment component, which is capable of adjusting the axial height of the first and second layer flute-shaped speed meters along the axial direction of the quench tower.
[0010] Preferably, it further includes a circumferential limiting component;
[0011] The circumferential limiting member is fixed to the inner wall of the quench tower to limit the circumferential deflection of the first and second layer flute-shaped speedometers.
[0012] Preferably, the circumferential limiting members are arranged in several groups in a circular array along the central axis of the quench tower;
[0013] Each set of circumferential limiting components includes two opposing limiting strips, and a channel is formed between the two opposing limiting strips for axial sliding of the first layer of flute-shaped speedometer and the second layer of flute-shaped speedometer.
[0014] Preferably, the position adjustment component can also adjust the axial height of several temperature measuring points along the axial direction of the quench tower;
[0015] Several layers of temperature measuring points slide axially relative to the circumferential limiting member and are circumferentially limited and connected.
[0016] Preferably, the simulated flue gas input device includes an induced draft fan, an electrically heated inlet duct, an electric heater, and a quench inlet duct;
[0017] The input end of the induced draft fan is connected to the lower port of the quench tower and the outside air, and the output end is connected to the electric heating inlet duct. The other end of the electric heating inlet duct is connected to the electric heater.
[0018] The output end of the electric heater is connected to the upper port of the quench tower through the quench inlet air duct.
[0019] Preferably, the quench tower is provided with a first layer of temperature measuring points, a second layer of temperature measuring points, a third layer of temperature measuring points and a fourth layer of temperature measuring points from top to bottom;
[0020] The first layer temperature measuring point, the second layer temperature measuring point, the third layer temperature measuring point, and the fourth layer temperature measuring point are all provided with observation holes on both the upper and lower sides.
[0021] Preferably, the position adjustment component drives the first layer of flute-shaped speedometer to move axially between the third layer temperature measuring point and the fourth layer temperature measuring point;
[0022] The position adjustment component also drives the second layer flute-shaped speedometer to move below the fourth layer temperature measuring point.
[0023] Preferably, the position adjustment component is a steel wire rope, and the quench tower is provided with a steel wire rope outlet for the steel wire rope to extend out.
[0024] Preferably, the coolant supply device includes a spray gun located near the upper port of the quench tower, with the nozzle of the spray gun facing downwards.
[0025] Preferably, it further includes an airflow distribution plate, which is located at the upper port of the quench tower and at the upper end of the spray gun.
[0026] Compared to existing technologies, the advantages of this invention are as follows: It simulates the actual operating conditions of a quench tower using a quench tower, a simulated flue gas input device, and a coolant supply device. Simultaneously, several layers of temperature measuring points are set up from top to bottom within the quench tower. Combined with a first-layer and a second-layer flue-shaped velocity meter whose axial height can be adjusted by a position adjustment component, it is possible to monitor the flue gas temperature and velocity at various cross-sections within the quench tower. This allows the experimental results to be amplified and used for monitoring the quench tower's operating conditions under actual conditions, thereby enabling the monitoring of three-dimensional flue gas field parameters (temperature) and quenching time under real-world conditions. Furthermore, the first-layer and second-layer flue-shaped velocity meters can serve as backups and mutual verification mechanisms, ensuring the accuracy of the monitoring. Attached Figure Description
[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of one example of the structure provided by this utility model.
[0029] Figure 2 for Figure 1 A cross-sectional view along plane AA (showing only the quench tower and its internal structure).
[0030] Figure 3 for Figure 2 An enlarged diagram of position D in the middle.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Quenching tower; 10. Observation hole; 11. First layer temperature measuring point; 12. Second layer temperature measuring point; 13. Third layer temperature measuring point; 14. Fourth layer temperature measuring point; 15. Wire rope outlet; 2. Simulated flue gas input device; 21. Exhaust fan; 22. Electric heating inlet duct; 23. Electric heater; 24. Quenching inlet duct; 25. Quenching outlet duct; 3. Coolant supply device; 31. Spray gun; 4. First layer flute-shaped speed meter; 5. Second layer flute-shaped speed meter; 6. Position adjustment component; 7. Circumferential limiting component; 71. Limiting strip; 72. Channel; 8. Airflow distribution plate. Detailed Implementation
[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.
[0036] See Figures 1 to 3 This utility model provides a quench tower operating condition monitoring and testing device, including a quench tower 1, a simulated flue gas input device 2, and a coolant supply device 3. The output ends of both the simulated flue gas input device 2 and the coolant supply device 3 are connected to the upper port of the quench tower 1. The simulated flue gas input device 2 is used to supply flue gas at a preset simulated temperature from the upper end of the quench tower 1 into the quench tower 1, and the coolant supply device 3 is used to supply coolant from the upper end of the quench tower 1 into the quench tower 1.
[0037] Specifically, the quench tower 1 has several layers of temperature measuring points arranged from top to bottom. Above and below the lowest temperature measuring point of the quench tower 1, there are first-layer flute-shaped speed meters 4 and second-layer flute-shaped speed meters 5, respectively. It also includes a position adjustment component 6, which can adjust the axial height of the first-layer flute-shaped speed meters 4 and the second-layer flute-shaped speed meters 5 along the axial direction of the quench tower 1.
[0038] In the above scheme, the actual operating conditions of the quench tower 1 are simulated using the quench tower 1, the simulated flue gas input device 2, and the coolant supply device 3. Simultaneously, several layers of temperature measuring points are set from top to bottom within the quench tower 1, and, in conjunction with the first-layer flute-shaped velocity gauge 4 and the second-layer flute-shaped velocity gauge 5, whose axial height can be adjusted by the position adjustment component 6, the flue gas temperature and flow velocity at various cross-sections within the quench tower 1 can be monitored. This allows the experimental results to be amplified and used for monitoring the operating conditions of the quench tower 1 under actual conditions, thereby enabling the monitoring of the three-dimensional smoke field parameters (temperature) and quenching time of the quench tower 1 under actual conditions. Furthermore, the first-layer flute-shaped velocity gauge 4 and the second-layer flute-shaped velocity gauge 5 can serve as backups for each other and mutually verify each other, ensuring the accuracy of the monitoring.
[0039] It should be understood that by using several layers of temperature measuring points, the three-dimensional temperature field of the quench tower 1 can be simulated, thereby determining the temperature inside the tower, especially at the 200°C position. Based on the first layer of flue-shaped velocity meters 4 and the second layer of flue-shaped velocity meters 5, the flow rate of the flue gas can be determined, and the time required for the flue gas to drop below 200°C can be calculated. Optimization and control can then be performed based on the monitoring data to ensure that the flue gas temperature drops below 200°C within one second, reducing the residence time of the flue gas in the 200–500°C temperature range, and thus effectively reducing the generation of dioxins. Specific temperature field detection and control methods can be implemented using computer programs, which are not improvements in this application and will not be elaborated upon.
[0040] See Figures 1 to 3 It also includes a circumferential limiting member 7, which is fixed on the inner wall of the quench tower 1 to limit the circumferential deflection of the first-layer flute-shaped speed meter 4 and the second-layer flute-shaped speed meter 5.
[0041] Specifically, the circumferential limiting members 7 are arranged in several groups in a circular array along the central axis of the quench tower 1; each group of circumferential limiting members 7 includes two oppositely arranged limiting strips 71, and a channel 72 is formed between the two oppositely arranged limiting strips 71 for the axial sliding of the first layer of flute-shaped speedometer 4 and the second layer of flute-shaped speedometer 5.
[0042] Furthermore, the position adjustment component 6 can also adjust the axial height of several temperature measuring points along the axial direction of the quench tower 1; the several temperature measuring points slide axially relative to the circumferential limiting component 7 and are circumferentially limited and connected.
[0043] It should be understood that the position adjustment component 6 can drive one of the first layer flute-shaped speedometer 4, the second layer flute-shaped speedometer 5, and several layers of temperature measuring points to slide axially individually, or drive all three to slide axially synchronously. The specific settings can be configured according to actual needs.
[0044] See Figure 1The simulated flue gas input device 2 includes an induced draft fan 21, an electrically heated inlet duct 22, an electric heater 23, and a quench inlet duct 24. The input end of the induced draft fan 21 is connected to the lower port of the quench tower 1 and the outside air, while its output end is connected to the electrically heated inlet duct 22. The other end of the electrically heated inlet duct 22 is connected to the electric heater 23. The output end of the electric heater 23 is connected to the upper port of the quench tower 1 through the quench inlet duct 24 to deliver flue gas at a preset temperature to the upper port of the quench tower 1. The input end of the induced draft fan 21 and the lower port of the quench tower 1 can be connected through the quench outlet duct 25.
[0045] See Figure 1 The quench tower 1 has a first layer of temperature measuring points 11, a second layer of temperature measuring points 12, a third layer of temperature measuring points 13, and a fourth layer of temperature measuring points 14 arranged from top to bottom. Observation holes 10 are provided on both the upper and lower sides of the first layer of temperature measuring points 11, the second layer of temperature measuring points 12, the third layer of temperature measuring points 13, and the fourth layer of temperature measuring points 14. Specifically, the observation holes 10 can be set as PIV measuring holes.
[0046] Furthermore, the position adjustment component 6 drives the first layer of flute-shaped speedometer 4 to move axially between the third layer temperature measuring point 13 and the fourth layer temperature measuring point 14; the position adjustment component 6 also drives the second layer of flute-shaped speedometer 5 to move below the fourth layer temperature measuring point 14.
[0047] Furthermore, the position adjustment component 6 is configured as a steel wire rope, and the quench tower 1 is provided with a steel wire rope outlet 15 for the steel wire rope to extend out.
[0048] See Figure 1 The coolant supply device 3 includes a spray gun 31, which is located near the upper port of the quench tower 1, and the nozzle of the spray gun 31 is set downward.
[0049] In order to make the flue gas mix evenly with the coolant and improve the cooling effect, this embodiment also includes an airflow distribution plate 8, which is located at the upper port of the quench tower 1 and at the upper end of the spray gun 31.
[0050] In summary, the specific operating conditions of the equipment during the test in this embodiment are as follows:
[0051] The induced draft fan 21 draws in air or flue gas from the bottom of the quench tower 1 and sends it to the electric heater 23 through the electric heating inlet duct 22. The flue gas is heated in the electric heater 23 to a preset temperature (set according to the flue gas to be simulated). The heated flue gas is output from the output end of the electric heater 23 to the quench inlet duct 24 and then transported to the airflow distribution plate 8 for uniform distribution. This ensures that the flue gas is evenly input into the quench tower 1 from the upper port. At the same time, the spray gun 31 of the coolant supply device 3 sprays coolant into the quench tower 1. The flue gas comes into contact with the coolant in the same direction and moves downward. After being cooled, it leaves the quench tower 1 and enters the quench outlet duct 25. The induced draft fan 21 then introduces the cooled flue gas into the electric heater 23 and then back into the quench tower 1, thus realizing the circulation of the flue gas.
[0052] Meanwhile, during the above process, when the flue gas flows downward in the quench tower 1, the temperature of the flue gas at different heights in the quench tower 1 is monitored in real time by the first layer temperature measuring point 11, the second layer temperature measuring point 12, the third layer temperature measuring point 13 and the fourth layer temperature measuring point 14. The flow velocity of the flue gas is monitored in real time by the first layer flute speed meter 4 and the second layer flute speed meter 5. In order to avoid flow velocity errors caused by temperature changes, the axial height of the first layer flute speed meter 4 and the second layer flute speed meter 5 can be adjusted by the steel wire rope (position adjustment component 6) to realize the monitoring of flue gas velocity at different axial heights.
[0053] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A test device for monitoring the operating conditions of a quench tower, characterized in that, It includes a quench tower (1), a simulated flue gas input device (2) and a coolant supply device (3), the output ends of the simulated flue gas input device (2) and the coolant supply device (3) are both connected to the upper port of the quench tower (1); The quench tower (1) has several layers of temperature measuring points from top to bottom. Above and below the lowest temperature measuring point of the quench tower (1) are a first layer of flute-shaped speed meter (4) and a second layer of flute-shaped speed meter (5), respectively. It also includes a position adjustment component (6), which is capable of adjusting the axial height of the first layer flute-shaped speed meter (4) and the second layer flute-shaped speed meter (5) along the axial direction of the quench tower (1).
2. The quench tower operating condition monitoring and testing equipment according to claim 1, characterized in that, It also includes a circumferential limiting component (7); The circumferential limiting member (7) is fixed to the inner wall of the quench tower (1) to limit the circumferential deflection of the first layer flute-shaped speed meter (4) and the second layer flute-shaped speed meter (5).
3. The quench tower operating condition monitoring and testing equipment according to claim 2, characterized in that, The circumferential limiting member (7) is distributed in several groups in a circular array along the central axis of the quench tower (1); Each of the circumferential limiting members (7) includes two oppositely arranged limiting strips (71), and a channel (72) is formed between the two oppositely arranged limiting strips (71) for the first layer of flute-shaped speedometer (4) and the second layer of flute-shaped speedometer (5) to slide axially.
4. The quench tower operating condition monitoring and testing equipment according to claim 2, characterized in that, The position adjustment component (6) can also adjust the axial height of several temperature measuring points along the axial direction of the quench tower (1); Several layers of temperature measuring points slide axially relative to the circumferential limiting member (7) and are circumferentially limited and connected.
5. The quench tower operating condition monitoring and testing equipment according to claim 1, characterized in that, The simulated flue gas input device (2) includes an induced draft fan (21), an electrically heated inlet duct (22), an electric heater (23), and a quench inlet duct (24); The input end of the induced draft fan (21) is connected to the lower port of the quench tower (1) and the outside air, and the output end is connected to the electric heating inlet duct (22). The other end of the electric heating inlet duct (22) is connected to the electric heater (23). The output end of the electric heater (23) is connected to the upper port of the quench tower (1) through the quench inlet air duct (24).
6. A quench tower operating condition monitoring and testing device according to any one of claims 1-5, characterized in that, The quench tower (1) is provided with a first layer of temperature measuring points (11), a second layer of temperature measuring points (12), a third layer of temperature measuring points (13) and a fourth layer of temperature measuring points (14) from top to bottom; The first layer temperature measuring point (11), the second layer temperature measuring point (12), the third layer temperature measuring point (13) and the fourth layer temperature measuring point (14) are provided with observation holes (10) on both the upper and lower sides.
7. The quench tower operating condition monitoring and testing equipment according to claim 6, characterized in that, The position adjustment component (6) drives the first layer flute-shaped speedometer (4) to move axially between the third layer temperature measuring point (13) and the fourth layer temperature measuring point (14); The position adjustment component (6) also drives the second layer flute-shaped speedometer (5) to move below the fourth layer temperature measuring point (14).
8. The quench tower operating condition monitoring and testing equipment according to claim 7, characterized in that, The position adjustment component (6) is configured as a wire rope, and the quench tower (1) is provided with a wire rope outlet (15) for the wire rope to extend out.
9. The quench tower operating condition monitoring and testing equipment according to claim 1, characterized in that, The coolant supply device (3) includes a spray gun (31), which is located near the upper port of the quench tower (1), and the nozzle of the spray gun (31) is set downward.
10. The quench tower operating condition monitoring and testing equipment according to claim 9, characterized in that, return Includes an airflow distribution plate (8), which is located at the upper port of the quench tower (1). And it is located at the upper end of the spray gun (31).