Desulfurization slurry injection test device for wet desulphurization process
By combining the pressure regulating mechanism and the flow sensor, precise control of the spray pressure in the wet desulfurization process is achieved, solving the problem of slurry waste caused by unstable flue gas flow and reducing costs.
Patent Information
- Application Number
- CN202423192409.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In wet desulfurization processes, flue gas flow is difficult to control, resulting in excessive spray slurry, which leads to waste and increased costs.
It adopts a pressure regulating mechanism, which drives the gear plate to rotate through the cylinder, adjusts the position of the baffle to control the spray pressure, and adapts to different flue gas flow rates, including the use of flow sensors and controllers.
It achieves precise control of spray pressure, adapts to different flue gas flow rates, reduces slurry waste, and lowers costs.
Smart Images
Figure CN223692352U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of wet desulphurization process technology, specifically to a kind of desulfurization slurry injection test device of wet desulphurization process. BACKGROUND
[0002] Coal-fired power plant uses coal as main fuel to generate electricity, coal direct combustion releases a large amount of SO2, causing atmospheric environmental pollution, waste gas emission process needs to be desulfurized, wet desulfurization is a commonly used desulfurization device, which is installed with a spraying device in the desulfurization device, for spraying desulfurization liquid into the desulfurization tower.
[0003] In use, test device is used to detect the effect of desulfurization liquid and waste gas reaction, and the detected data is beneficial to actual use. Generally, the flow of flue gas is not easy to control, and the spraying pressure is usually constant. When the amount of flue gas is small, the actual spraying slurry is often more than the actual flue gas amount, resulting in waste and increased cost. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a kind of desulfurization slurry injection test device of wet desulphurization process, which can control the spraying pressure to adapt to different flow of flue gas, save effect and avoid slurry waste, solving the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of desulfurization slurry injection test device of wet desulphurization process, including test tank body and the gas inlet pipeline, exhaust duct connected to test tank body, the annular pipe is connected in the test tank body, the annular pipe is connected with multiple spray heads, and the liquid inlet end of annular pipe is connected with pressure regulating mechanism, the pressure regulating mechanism includes pressure regulating tank, cylinder, two connecting plates, two gears, toothed plate, two baffles, the cylinder is connected to the end of pressure regulating tank, and the power output end of cylinder is connected with toothed plate, the toothed plate is used to drive two gears to rotate synchronously, the two ends of connecting plate are connected with gear and baffle, the liquid outlet end of pressure regulating tank is communicated with annular pipe, and the liquid inlet end of pressure regulating tank is connected with the output end of liquid pump, the liquid suction end of liquid pump is connected with liquid supply unit.
[0006] Preferably, the front end of the test tank body is connected with a controller, the gas inlet pipeline is connected with a flow sensor, the flow sensor is electrically connected with the controller, and the controller is electrically connected with the cylinder.
[0007] Preferably, the pressure regulating mechanism further includes two rotating shafts, and the rotating shafts are used for gear guiding.
[0008] The end of the rotating shaft is fixedly connected with the gear, and the rotating shaft is rotatably connected in the pressure regulating box.
[0009] Preferably, the toothed plate is meshingly connected with the two gears.
[0010] Preferably, the pressure regulating box is connected with a liquid conveying pipeline at the liquid discharging end, and the end of the liquid conveying pipeline is connected with the annular pipe.
[0011] Preferably, the pressure regulating box is internally provided with a conical cavity, and the conical cavity is communicated with a liquid inlet matched with the baffle.
[0012] Preferably, the front end of the test tank body is connected with an observation window.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with a pressure regulating mechanism, the cylinder can drive the toothed plate to reciprocally move, the toothed plate drives the two gears to synchronously rotate, the rotating directions of the two gears are opposite, the two baffles can synchronously approach or move away from each other, the liquid flow amount flowing into the liquid conveying pipeline can be adjusted, so that the spraying pressure can be controlled to adapt to the flue gas of different flow sizes, the saving effect is achieved, and the waste of slurry is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the perspective view of the utility model;
[0015] Figure 2 It is the internal structure schematic view of the test tank body of the utility model;
[0016] Figure 3 It is the connection structure schematic view of the flow sensor and the air inlet pipeline of the utility model;
[0017] Figure 4 It is the internal structure schematic view of the pressure regulating box of the utility model;
[0018] Figure 5 It is the connection structure schematic view of the gear and the pressure regulating box of the utility model;
[0019] Figure 6 It is the connection structure schematic view of the gear and the baffle of the utility model.
[0020] In the drawing: 1, test tank body; 2, observation window; 3, air inlet pipeline; 4, air outlet pipeline; 5, controller; 6, liquid conveying pipeline; 7, pressure regulating box; 8, cylinder; 9, liquid pumping pump; 10, annular pipe; 11, spray head; 12, flow sensor; 13, connecting plate; 14, gear; 15, toothed plate; 16, conical cavity; 17, baffle; 18, liquid inlet; 19, rotating shaft. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0022] Please refer to Figures 1 to 6 The utility model provides a kind of desulfurization slurry injection test device of wet desulfurization process, including test tank body 1 and be connected in test tank body 1's inlet pipeline 3, exhaust pipeline 4, the bottom center of test tank body 1 is provided with drain, and waste liquid after reaction is discharged from drain. Annular pipe 10 is connected in test tank body 1, and annular pipe 10 is connected with multiple spray heads 11, and the interval of adjacent spray head 11 is equal. The liquid inlet end of annular pipe 10 is connected with pressure regulating mechanism, and pressure regulating mechanism includes pressure regulating tank 7, cylinder 8, two connecting plates 13, two gears 14, toothed plate 15, two baffles 17, cylinder 8 is connected in the end of pressure regulating tank 7, and the power output end of cylinder 8 is connected with toothed plate 15, toothed plate 15 is used to drive two gears 14 synchronous rotation, and the two ends of connecting plate 13 are connected with gear 14 and baffle 17, and the liquid outlet end of pressure regulating tank 7 is communicated with annular pipe 10, and the liquid inlet end of pressure regulating tank 7 is connected with the output end of pumping pump 9, and the liquid suction end of pumping pump 9 is connected with liquid supply unit, and liquid supply unit belongs to prior art, and is used to provide slurry.
[0023] Flue gas enters into test tank body 1 from inlet pipeline 3, and flue gas moves from bottom to top, pumping pump 9 delivers slurry into annular pipe 10, and sprays from spray head 11, and reacts with flue gas, and finally gas is discharged from exhaust pipeline 4.
[0024] The front end of test tank body 1 is connected with controller 5, and flow sensor 12 is connected in inlet pipeline 3, and flow sensor 12 is electrically connected with controller 5, and controller 5 is electrically connected with cylinder 8. Flow sensor 12 can detect the gas intake of inlet pipeline 3, and feedback detection information to controller 5, and controller 5 controls the operation of cylinder 8, to realize that two baffles 17 are synchronously close to each other or away from each other, and the liquid flow of flow inlet liquid pipeline 6 can be adjusted, so that the spraying pressure can be controlled to adapt to flue gas of different flow size, to achieve the effect of saving, and avoid waste of slurry.
[0025] Pressure regulating mechanism further includes two rotating shafts 19, and rotating shaft 19 is used for gear 14 guiding, and the end of rotating shaft 19 is fixedly connected with gear 14, and rotating shaft 19 is rotatably connected in pressure regulating tank 7, and the cross section of rotating shaft 19 is T-shaped structure, so that gear 14 rotates stably, and then the stability of baffle 17 rotation is improved.
[0026] The toothed plate 15 is meshed with the two gears 14, high transmission efficiency, constant transmission ratio, long service life.
[0027] The pressure regulating tank 7 is connected with the liquid conveying pipeline 6, and the end of the liquid conveying pipeline 6 is connected with the annular pipe 10.
[0028] The pressure regulating tank 7 is internally provided with a conical cavity 16, and the conical cavity 16 is communicated with a liquid inlet 18 matched with the baffle 17.
[0029] The front end of the test tank body 1 is connected with an observation window 2, and the internal working state of the test tank body 1 can be understood through the observation window 2, which is very intuitive.
[0030] Working principle: the flue gas enters into the test tank body 1 from the gas inlet pipeline 3, and the flue gas moves from bottom to top, the slurry is conveyed into the pressure regulating tank 7 by the liquid pump 9, and then flows to the annular pipe 10 through the liquid conveying pipeline 6, and finally is sprayed from the spray head 11, the slurry is contacted and reacted with the flue gas, and the gas is discharged from the gas outlet pipeline 4. The gas inlet pipeline 3 is provided with a flow sensor 12, the flow sensor 12 can detect the gas flow size in the gas inlet pipeline 3, and feedback the detection information to the controller 5, and the controller 5 controls the operation of the air cylinder 8. When the detected gas flow is large, the air cylinder 8 drives the toothed plate 15 to move forward, synchronously drives the two gears 14 to rotate, and cooperates with the use of the connecting plate 13, so that the two baffles 17 are synchronously rotated and away from each other, that is, the slurry flow through the liquid inlet 18 is large, the pressure of the liquid conveying pipeline 6 and the annular pipe 10 is also increased, and the spraying range is also increased, which can fully react with the flue gas, and the effect is remarkable. Conversely, when the detected gas flow is small, the toothed plate 15 moves back, so that the two baffles 17 are synchronously rotated and close to each other, the slurry flow through the liquid inlet 18 is reduced, that is, the spraying pressure is also reduced, and the slurry can also fully react with the gas. The test device can control the spraying pressure to adapt to the flue gas of different flow sizes, save the effect, and avoid the waste of the slurry.
[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A desulfurization slurry injection test device for a wet desulfurization process, comprising a test tank (1) and an air inlet pipe (3) and an exhaust pipe (4) connected to the test tank (1), characterized in that, The test tank (1) is connected to an annular pipe (10), which is connected to multiple nozzles (11). The inlet end of the annular pipe (10) is connected to a pressure regulating mechanism. The pressure regulating mechanism includes a pressure regulating box (7), a cylinder (8), two connecting plates (13), two gears (14), a toothed plate (15), and two baffles (17). The cylinder (8) is connected to the end of the pressure regulating box (7), and the power output end of the cylinder (8) is connected to the toothed plate (15). The toothed plate (15) is used to drive the two gears (14) to rotate synchronously. The two ends of the connecting plate (13) are connected to the gears (14) and the baffles (17). The outlet end of the pressure regulating box (7) is connected to the annular pipe (10), and the inlet end of the pressure regulating box (7) is connected to the output end of the pump (9). The suction end of the pump (9) is connected to the supply unit.
2. The desulfurization slurry injection test device for a wet desulfurization process according to claim 1, characterized in that, The front end of the test tank (1) is connected to a controller (5), and the air inlet pipe (3) is connected to a flow sensor (12). The flow sensor (12) is electrically connected to the controller (5), and the controller (5) is electrically connected to the cylinder (8).
3. The desulfurization slurry injection test device for a wet desulfurization process according to claim 1, characterized in that, The pressure regulating mechanism also includes two rotating shafts (19) for guiding the gear (14).
4. The desulfurization slurry injection test device for a wet desulfurization process according to claim 3, characterized in that, The end of the rotating shaft (19) is fixedly connected to the gear (14), and the rotating shaft (19) is rotatably connected to the pressure regulating box (7). The cross-section of the rotating shaft (19) is a T-shaped structure.
5. The desulfurization slurry injection test device for a wet desulfurization process according to claim 1, characterized in that, The toothed plate (15) is meshed with two gears (14).
6. The desulfurization slurry injection test device for a wet desulfurization process according to claim 1, characterized in that, The pressure regulating box (7) is connected to a liquid infusion pipe (6) at its drain end, and the end of the liquid infusion pipe (6) is connected to a ring pipe (10).
7. The desulfurization slurry injection test device for a wet desulfurization process according to claim 6, characterized in that, The pressure regulating box (7) is provided with a conical cavity (16), and the conical cavity (16) is connected to a liquid inlet (18), which is matched with the baffle (17).
8. The desulfurization slurry injection test device for a wet desulfurization process according to claim 1, characterized in that, The front end of the test tank (1) is connected to an observation window (2).