A converter gas pressurizer impeller cleaning device

Abstract

The utility model relates to a converter gas pressurizer impeller cleaning device, and the technical problem that the converter gas pressurizer impeller needs to stop and open the cover to clean is solved, and the technical scheme is: it includes the spray head, water pump, water pipe and cut-off system, and the first hole is set up on the observation hole plate on the converter gas pressurizer casing, the spray head tail is fixed in the casing observation hole plate inner side wall, one end of water pipe is connected with the spray head, water pump is connected in the water pipe middle part, and the other end of water pipe is connected with water source, the second hole is set up on the blow-off port of the machine belly, and the second hole is connected with the water drainer through the water pipe, the cut-off system includes three ball valves, check valves, two valves, and is sequentially connected in proper order, and the two valves are connected and arranged on the water pipe between the blow-off port and the water drainer. The converter gas pressurizer impeller on -line cleaning device of the utility model can clean the impeller dust under the condition that the equipment does not stop, reduces the frequent stop maintenance of the maintenance personnel, greatly reduces the labor intensity of workers, and improves the work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of gas compressor impeller cleaning technology, specifically relating to a converter gas compressor impeller cleaning device. Background Technology

[0002] The converter gas compressor impeller cleaning device consists of 7 parts: external water pipeline, explosion-proof motor pressurizing water pump, inlet and outlet valves, gas-specific check valve, ball valve, pressure gauge, and gas drainer. Due to the high dust content of converter gas, actual measurements show that when the dust content of converter gas reaches 120mg / m³, the dust accumulation on the impeller exceeds 3mm after 72 hours of operation, and the vibration value increases from the normal range of ≤4mm / s to ≥10mm / s. It is necessary to shut down the machine and open the cover for cleaning once a week, with each cleaning taking 4 hours and reducing the equipment utilization rate by 15%. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide a converter gas compressor impeller cleaning device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A converter gas compressor impeller cleaning device includes a nozzle, a water pump, a water pipe, and a shut-off system. A first hole is provided on an observation plate on the casing of the converter gas compressor. The tail of the nozzle is fixed inside the first hole on the observation plate of the casing. One end of the water pipe is connected to the first hole on the observation plate, and the nozzle is connected to the water pipe. The water pump is connected to the middle of the water pipe, and the other end of the water pipe is connected to an external water source.

[0006] A second hole is provided on the drain outlet of the converter gas compressor, and the second hole is connected to the inlet of the drainer through a water pipe;

[0007] The shut-off system includes a first ball valve, a check valve, a second ball valve, a third ball valve, a first valve, and a second valve. The check valve is installed on the water pipe between the nozzle and the water pump. The first ball valve is installed on the water pipe between the nozzle and the check valve. The second ball valve is installed on the water pipe between the check valve and the water pump. The third ball valve is installed on the water pipe between the water pump and the external water source. The first valve and the second valve are connected in series on the water pipe between the drain outlet and the drain device.

[0008] Furthermore, it also includes a testing system, which includes a first pressure gauge, a second pressure gauge, and two gas dust analyzers. The first pressure gauge is installed on the water pipe between the second ball valve and the water pump, and the second pressure gauge is installed on the water pipe between the third ball valve and the external water source. The two gas dust analyzers are respectively connected to the side walls of the inlet and outlet pipes of the converter gas compressor through flange seals. The first pressure gauge, the second pressure gauge, and the two gas dust analyzers are all externally connected to a PLC control system. When the real-time data deviation of the two gas dust analyzers is ≥15%, the PLC automatically starts the water pump (8).

[0009] Furthermore, the nozzle tip is flat and is 5-10cm away from the impeller profile inside the converter gas compressor casing. The nozzle axis is at a 40°-50° angle to the impeller surface.

[0010] Furthermore, the drainer is an explosion-proof gas drainer, and its effective water seal height is ≥ 1.5 times the maximum working pressure of the compressor.

[0011] Furthermore, the water pump is an explosion-proof motor booster pump.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The online cleaning device for the impeller of the converter gas compressor of this utility model can clean the ash accumulation on the impeller without stopping the equipment, reducing the need for maintenance personnel to stop the machine frequently for maintenance, greatly reducing the labor intensity of workers and improving work efficiency;

[0014] 2. This utility model can clean the impeller with ash accumulation inside the converter gas compressor in a timely manner, which greatly extends the operation interval of opening the cover for cleaning of the converter gas compressor, greatly reduces the labor intensity of workers, and improves work efficiency.

[0015] 3. The flat nozzle of this utility model sprays water at an angle to form a fan-shaped water curtain. With a distance of 5-10cm, it can thoroughly remove the dust accumulated in the impeller groove.

[0016] 4. The combination of multiple ball valves and check valves in series with an explosion-proof drainer in this utility model can eliminate the risk of gas backflow and meet the explosion-proof requirements of GB-62222.

[0017] 5. The cleaning interval for opening the lid of this utility model is extended from 1 week to 9 months, which greatly improves the overall efficiency of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] In the diagram: 1. Housing; 2. Body; 3. Nozzle; 4. First ball valve; 5. Check valve; 6. Second ball valve; 7. First pressure gauge; 8. Water pump; 9. Third ball valve; 10. Second pressure gauge; 11. Drain outlet; 12. First valve; 13. Second valve; 14. Drainer; 15. Water pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] like Figure 1 As shown, a converter gas compressor impeller cleaning device includes a nozzle 3, a water pump 8, a water pipe 15, a cut-off system, and a testing system. A first hole is provided on the observation plate on the converter gas compressor casing 1. The front end of the nozzle 3 is flat to ensure that a maximum fan-shaped surface can be formed during spraying, and there are no dead angles when spraying the impeller. The distance between the front end of the nozzle 3 and the inner profile of the impeller inside the converter gas compressor casing is 5cm. The axis of the nozzle 3 is at a 45° angle to the impeller surface, and the tail end is fixed inside the first hole on the observation plate of the casing 1. One end of the water pipe 15 is connected to the first hole on the observation plate, and the nozzle 3 is connected to the water pipe 15. The water pump 8 is an explosion-proof motor pressurized water pump, connected to the middle of the water pipe 15, and the other end of the water pipe 15 is connected to an external water source.

[0023] A second hole is provided on the drain outlet 11 of the converter gas compressor 2. The second hole is connected to the inlet of the drainer 14 through the water pipe 15. The drainer 14 is an explosion-proof gas drainer. Its effective water seal height is ≥ 1.5 times the maximum working pressure of the compressor. Its installation requirements refer to GB-62222 "Safety Regulations for Gas in Industrial Enterprises".

[0024] The shut-off system includes a first ball valve 4, a check valve 5, a second ball valve 6, a third ball valve 9, a first valve 12, and a second valve 13. The check valve 5 is installed on the water pipe 15 between the nozzle 3 and the water pump 8. The outlet pressure of the water pump 8 is not less than 2 MPa to prevent gas from flowing back to the rear end of the pipeline. The first ball valve 4 is installed on the water pipe 15 between the nozzle 3 and the check valve 5 to prevent the converter gas from not being cut off when the downstream cleaning device is under maintenance. The second ball valve 6 is installed on the water pipe 15 between the check valve 5 and the water pump 8. The third ball valve 9 is installed on the water pipe 15 between the water pump 8 and the external water source to control the water flow. The first valve 12 and the second valve 13 are connected in series on the water pipe 15 between the drain outlet 11 and the drainer 14.

[0025] The testing system includes a first pressure gauge 7, a second pressure gauge 10, and two gas dust analyzers. The first pressure gauge 7 is installed on the water pipe 15 between the second ball valve 6 and the water pump 8 to facilitate observation of pipeline pressure changes during cleaning. The second pressure gauge 10 is installed on the water pipe 15 between the third ball valve 9 and the external water source. The two gas dust analyzers are respectively connected to the side walls of the inlet and outlet pipes of the converter gas compressor via flange seals. The first pressure gauge 7, the second pressure gauge 10, and the two gas dust analyzers are all externally connected to a PLC control system. When the real-time data deviation of the two gas dust analyzers is ≥15%, the PLC automatically starts the water pump (8) to provide data support for the cleaning frequency and results.

[0026] Under 2MPa water pressure, the 45° nozzle effectively scours 95% of the impeller surface. The nozzle distance is set to 5-10cm because if the distance is less than 5cm, the impeller is easily scratched, and if it is greater than 10cm, the water pressure decreases, resulting in a 40% reduction in ash removal efficiency.

[0027] The outlet pressure of water pump 8 is set at 2.0±0.2MPa: if it is below 1.8MPa, it cannot penetrate the slab ash layer, and if it is above 2.2MPa, it is easy to cause motor vibration;

[0028] The compressor operates at a reduced frequency of 5Hz: This ensures that the impeller linear velocity is maintained at 1.5m / s, preventing dust accumulation due to stoppage and water scattering due to excessive speed.

[0029] After this utility model was put into use, two years of testing showed that: before using this utility model, the converter gas compressor had to be shut down and cleaned once a week; after using this device, the average time interval between cleaning operations was extended to nine months.

[0030] The distance between the front end of nozzle 3 and the inner impeller profile of the converter gas compressor casing can be any value between 5-10cm to prevent scratching the impeller during operation.

[0031] The angle between the axis of the nozzle 3 and the impeller surface can be any value between 40° and 50°.

[0032] The working process of this utility model:

[0033] When using this utility model, first open and close the valve of the drainer 14, open the water inlet hole, fill the drainer 14 with clean water, close the water inlet hole, open the valve, and check whether the drainer 14 is operating normally.

[0034] Next, reduce the frequency of the converter gas compressor to 5Hz; slowly open the third ball valve 9, start the water pump 8, and water enters the water pipe 15. Observe the pipe pressure of the water pipe 15 through the first pressure gauge 7.

[0035] Slowly open the first ball valve 4, then open the second ball valve 6. Water is sprayed onto the impeller through the nozzle 3 to begin cleaning. The nozzle 3 sprays a water curtain with the largest fan shape, rinsing the impeller surface at a 45° angle. The gas compressor must not be stopped during the cleaning process and must be kept running at a constant speed to prevent the compressor impeller from reversing during the cleaning process and to prevent incomplete rinsing, leaving dead corners, which would lead to increased vibration.

[0036] After the cleaning begins, observe the turbidity of the drainage from the overflow port of drain 14. The cleaning time can be adjusted as needed.

[0037] Cleaning can be performed at least twice a day, or the frequency can be increased according to the vibration value of the pressurizer.

Claims

1. A converter gas compressor impeller cleaning device, characterized in that, Includes a nozzle (3), a water pump (8), a water pipe (15), and a cut-off system. A first hole is provided on the observation hole plate on the casing (1) of the converter gas compressor. The tail of the nozzle (3) is fixed inside the first hole on the observation hole plate of the casing (1). One end of the water pipe (15) is connected to the first hole on the observation hole plate, and the nozzle (3) is connected to the water pipe (15). The water pump (8) is connected to the middle of the water pipe (15), and the other end of the water pipe (15) is connected to an external water source. A second hole is provided on the drain outlet (11) of the converter gas compressor (2), and the second hole is connected to the inlet of the drainer (14) through a water pipe (15); The cut-off system includes a first ball valve (4), a check valve (5), a second ball valve (6), a third ball valve (9), a first valve (12), and a second valve (13). The check valve (5) is installed on the water pipe (15) between the nozzle (3) and the water pump (8). The first ball valve (4) is installed on the water pipe (15) between the nozzle (3) and the check valve (5). The second ball valve (6) is installed on the water pipe (15) between the check valve (5) and the water pump (8). The third ball valve (9) is installed on the water pipe (15) between the water pump (8) and the external water source. The first valve (12) and the second valve (13) are connected in series on the water pipe (15) between the drain outlet (11) and the drainer (14).

2. The converter gas compressor impeller cleaning device according to claim 1, characterized in that, It also includes a testing system, which includes a first pressure gauge (7), a second pressure gauge (10) and two gas dust analyzers. The first pressure gauge (7) is installed on the water pipe (15) between the second ball valve (6) and the water pump (8). The second pressure gauge (10) is installed on the water pipe (15) between the third ball valve (9) and the external water source. The two gas dust analyzers are respectively connected to the side walls of the inlet and outlet pipes of the converter gas compressor through flange sealing. The first pressure gauge (7), the second pressure gauge (10) and the two gas dust analyzers are all externally connected to a PLC control system. When the real-time data deviation of the two gas dust analyzers is ≥15%, the PLC automatically starts the water pump (8).

3. The converter gas compressor impeller cleaning device according to claim 1, characterized in that, The nozzle (3) has a flat front end and is 5-10cm away from the impeller profile inside the converter gas compressor casing. The axis of the nozzle (3) is at a 40°-50° angle to the impeller surface.

4. The converter gas compressor impeller cleaning device according to claim 1, characterized in that, The drainer (14) is an explosion-proof gas drainer with an effective water seal height ≥ 1.5 times the maximum working pressure of the compressor.

5. The converter gas compressor impeller cleaning device according to claim 1, characterized in that, The water pump (8) is an explosion-proof motor pressurized water pump.

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