A compressed air purging system for desulfurization slurry supply pipeline

Abstract

This utility model relates to a compressed air purging system for a desulfurization slurry supply pipeline, belonging to the field of pipeline cleaning technology. It includes a desulfurization slurry supply pipeline, an air purging assembly, a water purging assembly, and an inspection and control system installed on the pipeline. One end of the desulfurization slurry supply pipeline is connected to an absorption tower, and the other end is connected to a limestone slurry tank. A first control valve is installed at the end of the desulfurization slurry supply pipeline closest to the absorption tower, and a second control valve is installed at the end of the pipeline closest to the limestone slurry tank. The air purging assembly and the water purging assembly are both installed at the end of the desulfurization slurry supply pipeline closest to the absorption tower, and are located on the side of the control valves furthest from the absorption tower. The first control valve, the second control valve, the air purging assembly, and the water purging assembly are all electrically connected to the inspection and control system. This application improves the safety of the slurry supply pipeline.

Description

Technical Field

[0001] This application relates to the field of pipeline cleaning, and in particular to a compressed air purging system for desulfurization slurry supply pipelines. Background Technology

[0002] The desulfurization slurry supply pipeline adopts a circulating reflux transportation method, with one transport slurry supply pipeline and one backup slurry supply pipeline. The pipeline used for transport needs to be switched regularly every month, that is, the transport slurry supply pipeline is switched to the backup slurry supply pipeline, and the backup slurry supply pipeline is switched to the transport slurry supply pipeline. After switching the pipeline, the switched slurry supply pipeline needs to be flushed to drain the residual slurry in the slurry supply pipeline.

[0003] However, due to the reflux design of the pipeline, the pipeline is long and has many turns, which makes it easy for the pipeline to be incompletely vented. During use, the pipeline may become blocked, so the reliability of the slurry supply pipeline cannot be guaranteed, and there are certain safety hazards. Utility Model Content

[0004] To improve the safety of slurry supply pipelines, this application provides a compressed air purging system for desulfurization slurry supply pipelines.

[0005] The technical solution of the compressed air purging system for desulfurization slurry supply pipeline provided in this application is as follows:

[0006] A compressed air purging system for a desulfurization slurry supply pipeline includes a desulfurization slurry supply pipeline, an air purging assembly, a water purging assembly, and an inspection and control system installed on the desulfurization slurry supply pipeline. One end of the desulfurization slurry supply pipeline is connected to an absorption tower, and the other end of the desulfurization slurry supply pipeline is connected to a limestone slurry tank. A first control valve is provided at the end of the desulfurization slurry supply pipeline near the absorption tower, and a second control valve is provided at the end of the desulfurization slurry supply pipeline near the limestone slurry tank. The air purging assembly and the water purging assembly are both installed at the end of the desulfurization slurry supply pipeline near the absorption tower, and both the air purging assembly and the water purging assembly are located on the side of the control valve away from the absorption tower.

[0007] The first control valve, the second control valve, the air purging assembly, and the water purging assembly are all electrically connected to the inspection and control system.

[0008] By adopting the above technical solution, the inspection and control system controls the first control valve, the second control valve, the air purging assembly, and the water purging assembly. When cleaning is required, the first and second control valves are closed, and the air purging assembly and the water purging assembly are activated. The dual cleaning setup enables a more thorough cleaning of the desulfurization slurry supply pipeline, thereby improving the safety of the slurry supply pipeline.

[0009] Optionally, the air purging assembly includes a compressed air box, an air pipe, and an air control valve. One end of the air pipe is connected to the desulfurization slurry supply pipe, and the other end of the air pipe is connected to the compressed air box. The air control valve is installed at one end of the air pipe near the desulfurization slurry supply pipe.

[0010] By adopting the above technical solution, during air purging, the air control valve is opened, and compressed air enters the desulfurization slurry supply pipeline to purge the slurry deposited in the pipeline, removing the residual slurry that cannot be carried away by water, thus making the cleaning more thorough.

[0011] Optionally, the water cleaning assembly includes a water supply tank, a water supply pipe, and a water supply control valve. One end of the water supply pipe is connected to the desulfurization slurry supply pipe, and the other end of the water supply pipe is connected to the water supply tank. The water supply control valve is installed at the end of the water supply pipe near the desulfurization slurry supply pipe.

[0012] By adopting the above technical solution, during water cleaning, the water supply control valve is opened, and water enters the desulfurization slurry supply pipeline to dilute and clean the slurry deposited in the pipeline, thereby achieving the effect of cleaning the desulfurization slurry supply pipeline.

[0013] Optionally, the inspection and control system includes a controller and a pressure sensor, the controller being electrically connected to the pressure sensor, and the pressure sensor being installed inside the desulfurization slurry supply pipeline.

[0014] By adopting the above technical solution, the pressure sensor detects the pressure inside the desulfurization slurry supply pipeline. Based on the detection results, the staff can adjust the opening and closing degree of the valve through the controller, which can reduce the possibility of excessive pressure causing the pipeline to burst and improve the safety of use.

[0015] Optionally, the inspection and control system further includes an ultrasonic sensor for detecting the residual amount in the desulfurization slurry supply pipeline, the ultrasonic sensor being electrically connected to the controller.

[0016] By adopting the above technical solution, the residual amount of slurry in the desulfurization slurry supply pipeline is detected by ultrasonic sensors, which makes it easier for staff to control the air purging component and water cleaning component for further cleaning through the controller, thus improving the convenience of use.

[0017] Optionally, the desulfurization slurry supply pipeline is also connected to an emptying pipeline, and the other end of the emptying pipeline is connected to a filter collection box for collecting flushing liquid.

[0018] By adopting the above technical solution, after the cleaning is completed, the diluted slurry enters the filter collection box through the drain pipe, where the diluted slurry is collected and settled, thereby collecting and utilizing the slurry and avoiding a large amount of waste.

[0019] Optionally, the end of the filter collection box near the ground is connected to a slurry recovery box, which is connected to the limestone slurry tank via a pipe.

[0020] By adopting the above technical solution, the slurry after sedimentation can be recycled. Since the concentration of the slurry changes after sedimentation, the staff can adjust the concentration of the slurry in the slurry recycling tank according to actual needs and let it flow back into the limestone slurry tank for continued use.

[0021] Optionally, a filtered water recovery tank is connected to the side wall of the filter collection box. The filtered water recovery tank is connected to the water supply tank through a pipe, and a water pump is installed between the filtered water recovery tank and the water supply tank.

[0022] By adopting the above technical solution, the upper layer water of the slurry after sedimentation is recovered. The filtered upper layer water flows into the filtered water recovery tank, and the water in the filtered water recovery tank can be quickly pumped to the water supply tank for secondary use by a water pump.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Check the control system to control the first control valve, the second control valve, the air purging assembly, and the water purging assembly. When cleaning is required, control the first and second control valves to close, and control the air purging assembly and the water purging assembly to perform cleaning. The dual cleaning settings can make the desulfurization slurry supply pipeline cleaner, thereby improving the safety of the slurry supply pipeline.

[0025] 2. Pressure sensors detect the pressure inside the desulfurization slurry supply pipeline. Based on the detection results, staff can adjust the opening and closing of valves through a controller, which can reduce the possibility of excessive pressure causing pipeline rupture and improve the safety of use.

[0026] 3. After cleaning, the diluted slurry enters the filter collection box through the drain pipe, where it is collected and settled, thus collecting and utilizing the slurry and avoiding a large waste of slurry. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the framework of the compressed air purging system for the desulfurization slurry supply pipeline in the embodiments of this application.

[0028] Figure 2This is a schematic diagram illustrating the control relationship in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Desulfurization slurry supply pipeline; 11. First control valve; 12. Second control valve; 2. Air purging assembly; 21. Compressed air box; 22. Air pipeline; 23. Air control valve; 3. Water purging assembly; 31. Water supply tank; 32. Water supply pipeline; 33. Water supply control valve; 4. Inspection and control system; 41. Controller; 42. Pressure sensor; 43. Ultrasonic sensor; 5. Drainage pipeline; 6. Filter collection box; 7. Slurry recovery box; 8. Filter water recovery box; 9. Water pump. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0031] This application discloses a compressed air purging system for a desulfurization slurry supply pipeline. (Refer to...) Figure 1 A compressed air purging system for a desulfurization slurry supply pipeline includes a desulfurization slurry supply pipeline 1, an air purging assembly 2, a water cleaning assembly 3, and an inspection and control system 4.

[0032] Both the air purging assembly 2 and the water purging assembly 3 are installed on the desulfurization slurry supply pipeline 1 and are electrically connected to the inspection and control system 4. The desulfurization slurry supply pipeline 1 is used to transfer the slurry in the limestone slurry tank to the absorption tower. Therefore, one end of the desulfurization slurry supply pipeline 1 is connected to the absorption tower, and the other end is connected to the limestone slurry tank. During purging, in order to prevent water and gas from entering the limestone slurry tank or the absorption tower, two control valves are installed on the desulfurization slurry supply pipeline 1. The end of the desulfurization slurry supply pipeline 1 near the absorption tower is set as the first control valve 11, and the end of the desulfurization slurry supply pipeline 1 near the limestone slurry tank is set as the second control valve 12. Both the first control valve 11 and the second control valve 12 are electrically connected to the inspection and control system 4. The inspection and control system 4 controls the opening and closing status and the degree of opening of the first control valve 11 and the second control valve 12, which allows the staff to make quick adjustments according to actual needs.

[0033] Reference Figure 1 and Figure 2The inspection control system 4 includes a controller 41, a pressure sensor 42, and an ultrasonic sensor 43. Both the pressure sensor 42 and the ultrasonic sensor 43 are electrically connected to the controller 41. The pressure sensor 42 is installed inside the desulfurization slurry supply pipeline 1, and the ultrasonic sensor 43 is installed outside the desulfurization slurry supply pipeline 1. The pressure sensor 42 is used to detect the pipeline pressure inside the desulfurization slurry supply pipeline 1. The controller 41 sends the pressure value detected by the pressure sensor 42 to the control center, so that the staff can adjust the working status of the air purging assembly 2 and the water cleaning assembly 3 according to the pressure value. Similarly, the ultrasonic sensor 43 is used to detect the amount of slurry residue inside the desulfurization slurry supply pipeline 1. The controller 41 sends the amount of slurry residue detected by the ultrasonic sensor 43 to the control center, so that the staff can adjust the working status of the air purging assembly 2 and the water cleaning assembly 3 according to the amount of slurry residue.

[0034] Reference Figure 1 and Figure 2 The air purging assembly 2 includes a compressed air box 21, an air pipe 22, and an air control valve 23. One end of the air pipe 22 is connected to the compressed air box 21, and the other end of the air pipe 22 is connected to the desulfurization slurry supply pipe 1. The air control valve 23 is installed on the air pipe 22 and is electrically connected to the controller 41. The controller 41 controls the working state of the air control valve 23, thereby controlling the purging of the desulfurization slurry supply pipe 1 by the compressed air in the compressed air box 21.

[0035] Reference Figure 1 and Figure 2 The water cleaning assembly 3 includes a water supply tank 31, a water supply pipe 32, and a water supply control valve 33. One end of the water supply pipe 32 is connected to the water supply tank 31, and the other end of the water supply pipe 32 is connected to the desulfurization slurry supply pipe 1. The water supply control valve 33 is installed on the water supply pipe 32 and is electrically connected to the controller 41. The controller 41 controls the working state of the water supply control valve 33, thereby controlling the flushing of the desulfurization slurry supply pipe 1 by the water in the water supply tank 31.

[0036] Reference Figure 1 and Figure 2The desulfurization slurry supply pipeline 1 is also connected to an emptying pipeline 5. The emptying pipeline 5 is connected to the desulfurization slurry supply pipeline 1 through a second control valve 12, which is a three-way valve. The other end of the emptying pipeline 5 is also connected to a filter collection box 6, which is used to collect the waste generated by flushing and rinsing. The end of the filter collection box 6 near the ground is connected to a slurry recovery box 7 and a valve. The slurry after sedimentation and filtration in the filter collection box 6 is deposited at the bottom of the filter collection box 6. The staff controls the valve to open according to the amount of sediment, and recovers the deposited slurry into the slurry recovery box 7. The slurry recovery box 7 is connected to the limestone slurry tank through a pipeline. The staff dilutes the deposited slurry according to the needs and then continues to flow into the limestone slurry tank for use. A filtered water recovery tank 8 is connected to the side wall of the filter collection box. The filtered water recovery tank 8 is connected to the water supply tank 31 through a pipe. A water pump 9 is installed between the filtered water recovery tank 8 and the water supply tank 31. The water pump 9 is electrically connected to the controller 41. The upper layer of water after sedimentation and filtration in the filter collection box 6 flows into the filtered water recovery tank 8 through a pipe and is pumped back to the water supply tank 31 by the water pump 9 for reuse.

[0037] The implementation principle of the compressed air purging system for a desulfurization slurry supply pipeline 1 in this application embodiment is as follows: During cleaning, the controller 41 controls the first control valve 11 and the second control valve 12 to be completely closed, and the controller 41 controls the water supply control valve 33 to be opened for cleaning. Then, the controller controls the second control valve 12 to open to the side of the filtered water recovery tank 8. According to the detection results of the ultrasonic sensor 43, the operator controls the second control valve 12 and the water supply control valve 33 to be closed through the controller 41, and controls the air control valve 23 to be opened for purging. According to the detection results of the pressure sensor 42, the operator controls the degree of opening of the air control valve 23 and the second control valve 12 to the side of the filtered water recovery tank 8. After cleaning and purging, the mixed slurry that enters the filter collection tank 6 settles. The operator dilutes it according to actual needs and returns it to the limestone slurry tank. The upper layer of water flows into the filtered water recovery tank 8 and is pumped back to the water supply tank 31 by the water pump 9.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A compressed air purging system for a desulfurization slurry supply pipeline, characterized in that: The system includes a desulfurization slurry supply pipeline (1), an air purging assembly (2), a water cleaning assembly (3), and an inspection and control system (4) installed on the desulfurization slurry supply pipeline (1). One end of the desulfurization slurry supply pipeline (1) is connected to the absorption tower, and the other end of the desulfurization slurry supply pipeline (1) is connected to the limestone slurry tank. A first control valve (11) is provided at the end of the desulfurization slurry supply pipeline (1) near the absorption tower, and a second control valve (12) is provided at the end of the desulfurization slurry supply pipeline (1) near the limestone slurry tank. The air purging assembly (2) and the water cleaning assembly (3) are both installed at the end of the desulfurization slurry supply pipeline (1) near the absorption tower. The air purging assembly (2) and the water cleaning assembly (3) are both located on the side of the control valve away from the absorption tower. The first control valve (11), the second control valve (12), the air purging assembly (2) and the water purging assembly (3) are all electrically connected to the inspection control system (4).

2. The compressed air purging system for a desulfurization slurry supply pipeline according to claim 1, characterized in that: The air purging assembly (2) includes a compressed air box (21), an air duct (22) and an air control valve (23). One end of the air duct (22) is connected to the desulfurization slurry supply duct (1), and the other end of the air duct (22) is connected to the compressed air box (21). The air control valve (23) is installed at one end of the air duct (22) near the desulfurization slurry supply duct (1).

3. The compressed air purging system for a desulfurization slurry supply pipeline according to claim 1, characterized in that: The water cleaning assembly (3) includes a water supply tank (31), a water supply pipe (32), and a water supply control valve (33). One end of the water supply pipe (32) is connected to the desulfurization slurry supply pipe (1), and the other end of the water supply pipe (32) is connected to the water supply tank (31). The water supply control valve (33) is installed at one end of the water supply pipe (32) near the desulfurization slurry supply pipe (1).

4. The compressed air purging system for a desulfurization slurry supply pipeline according to claim 1, characterized in that: The inspection control system (4) includes a controller (41) and a pressure sensor (42). The controller (41) is electrically connected to the pressure sensor (42), and the pressure sensor (42) is installed inside the desulfurization slurry supply pipeline (1).

5. The compressed air purging system for a desulfurization slurry supply pipeline according to claim 4, characterized in that: The inspection and control system (4) further includes an ultrasonic sensor (43) for detecting the amount of residue in the desulfurization slurry supply pipeline (1), and the ultrasonic sensor (43) is electrically connected to the controller (41).

6. The compressed air purging system for a desulfurization slurry supply pipeline according to claim 3, characterized in that: The desulfurization slurry supply pipeline (1) is also connected to an emptying pipeline (5), and the other end of the emptying pipeline (5) is connected to a filter collection box (6) for collecting flushing liquid.

7. A compressed air purging system for a desulfurization slurry supply pipeline according to claim 6, characterized in that: The filter collection box (6) is connected to a slurry recovery box (7) at one end near the ground. The slurry recovery box (7) is connected to the limestone slurry tank through a pipe.

8. A compressed air purging system for a desulfurization slurry supply pipeline according to claim 6, characterized in that: A filtered water recovery tank (8) is connected to the side wall of the filter collection box. The filtered water recovery tank (8) is connected to the water supply tank (31) through a pipe. A water pump (9) is installed between the filtered water recovery tank (8) and the water supply tank (31).

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