CN220111788U - Roots vacuum pump impeller scale removal device - Google Patents
Roots vacuum pump impeller scale removal device Download PDFInfo
- Publication number
- CN220111788U CN220111788U CN202321392005.4U CN202321392005U CN220111788U CN 220111788 U CN220111788 U CN 220111788U CN 202321392005 U CN202321392005 U CN 202321392005U CN 220111788 U CN220111788 U CN 220111788U
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- Prior art keywords
- vacuum pump
- barrel
- roots vacuum
- water inlet
- liquid
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000004140 cleaning Methods 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 239000002253 acid Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract description 63
- 241001584775 Tunga penetrans Species 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Abstract
The utility model discloses a Roots vacuum pump impeller descaling device, and belongs to the technical field of Roots vacuum pump equipment. The utility model comprises the following steps: a cleaning liquid barrel, a blending barrel, a cleaning liquid valve, a sealing water inlet valve, a Roots vacuum pump, a sealing water barrel and a filter barrel. According to the utility model, the cleaning liquid barrel, the clear water barrel and the blending barrel are used, so that the clean citric acid liquid can be well blended and diluted, the operation of using sealing water and adding citric acid before shutdown during production is realized through valve switching, the front end, the rear end and the middle part of the impeller of the Roots vacuum pump are sprayed and descaled by using the original sealing water spray heads of the Roots vacuum pump, the phenomenon of blockage of the Roots vacuum pump jigger during shutdown is effectively eliminated, the manual jigger can be realized, the safe and normal operation of jigger operation is ensured, and the production effective operation rate is improved. According to the utility model, the citric acid waste liquid is filtered and recovered, so that the resources can be fully used, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of Roots vacuum pump equipment, and particularly relates to a Roots vacuum pump impeller descaling device.
Background
The oxygen-making station of a certain smelting enterprise is provided with a set of pressure swing adsorption oxygen-making system, two Roots vacuum pumps are arranged, and moisture, carbon dioxide, nitrogen and a small amount of other gas components selectively adsorbed by the dehydration adsorbent and the molecular sieve are pumped out of the adsorption tower through the Roots vacuum pumps and discharged to the atmosphere, so that the pressure swing adsorption oxygen-making system is an important component device of the pressure swing adsorption oxygen-making system.
Sealing water of the Roots vacuum pump unit is used as softened water, scaling matters can be generated in the long-term operation process, when the system shutdown equipment is stopped, free scaling matters naturally precipitate and adhere to the surfaces of the Roots impellers, so that the Roots impellers and the shell are blocked, manual jiggers cannot be carried out, the jiggering operation is completed in a bridge crane matched operation mode, the jiggering operation time is long, the effective operation rate of the equipment is reduced, and in the jiggering operation process, the conditions of steel rope breakage, jiggering bolt sliding-out and the like exist, and great potential safety hazards exist for field operators and field equipment facilities.
The publication number is: the Chinese patent of CN213529849U discloses a dry Roots vacuum pump cleaning system applied to the chemical field, which sprays cleaning liquid into an automatic vacuum pump through a high-pressure nozzle with larger impact force, then cleans the inside of the vacuum pump, reduces the labor intensity of workers, improves the cleaning safety and saves cleaning raw materials. However, when the cleaning is performed by using such a method, the cleaning effect is not uniform, and particularly, the scale adhering to the Roots impeller cannot be cleanly removed, and the improvement of the device is relatively complicated, so that the maintenance cost of the system is increased.
At present, a Roots vacuum pump impeller descaling device is urgently needed, scaling substances on the Roots impeller can be well removed, safe and normal operation of jigger operation is guaranteed, and production effective operation rate is improved.
Disclosure of Invention
In order to overcome the problems in the background art, the utility model provides the Roots vacuum pump impeller descaling device which can remove scaling substances on the Roots impeller, ensure the safe and normal operation of jigger operation and improve the production effective operation rate.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme: a roots vacuum pump impeller descaling device comprising: a cleaning liquid barrel, a blending barrel, a cleaning liquid valve, a sealing water inlet valve, a first Roots vacuum pump and a sealing water barrel; the cleaning liquid barrel is communicated with the clear water barrel through a pipeline and the blending barrel; the blending barrel is communicated with the water inlet of the first Roots vacuum pump through a pipeline, a cleaning liquid valve is arranged on the pipeline communicated with the first Roots vacuum pump, and a sealing water inlet valve is arranged on the pipeline communicated with the sealing water barrel and the water inlet of the first Roots vacuum pump; and the water outlet of the first Roots vacuum pump is communicated with the blending barrel through a pipeline.
Further, a first liquid pump and a first water inlet are arranged in the cleaning liquid barrel and the cleaning water barrel.
Further, the blending barrel is provided with a second liquid pump, a stirrer and an acid inlet.
Further, a filter barrel is arranged on a pipeline communicated with the first Roots vacuum pump and the blending barrel; the filter vat is provided with a third liquid pump, a filter screen for filtering dirt discharged from the water outlet, and a fourth water inlet communicated with the water outlet pipeline of the first Roots vacuum pump.
Furthermore, the cleaning liquid valve and the sealing water inlet valve are electromagnetic valves and are electrically connected with the controller and uniformly controlled by the controller; the liquid pump, the stirrer and the liquid pump are all electrically connected with the controller and are uniformly controlled by the controller.
The utility model has the beneficial effects that: according to the utility model, the cleaning liquid barrel, the clear water barrel and the blending barrel are used, so that the clean citric acid liquid can be well blended and diluted, the operation of using sealing water and adding citric acid before shutdown during production is realized through valve switching, the front end, the rear end and the middle part of the impeller of the Roots vacuum pump are sprayed and descaled by using the original sealing water spray heads of the Roots vacuum pump, the phenomenon of blockage of the Roots vacuum pump jigger during shutdown is effectively eliminated, the manual jigger can be realized, the safe and normal operation of jigger operation is ensured, and the production effective operation rate is improved. According to the utility model, the citric acid waste liquid is filtered and recovered, so that the resources can be fully used, and the cost is saved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the cleaning liquid tank and the cleaning liquid tank in the present utility model;
FIG. 3 is a schematic view of the structure of the blending barrel of the present utility model;
FIG. 4 is a schematic view of a filter vat according to the present utility model;
FIG. 5 is a schematic diagram of a control circuit of the present utility model.
In the figure, a 1-cleaning solution barrel, a 101-first liquid drawing pump, a 102-first water inlet, a 2-cleaning solution barrel, a 3-blending barrel, a 301-second liquid drawing pump, a 302-stirrer, a 303-acid inlet, a 304-second water inlet, a 305-third water inlet, a 4-cleaning solution valve I, a 5-sealing water inlet valve I, a 6-first Roots vacuum pump, a 7-filter barrel, a 701-third liquid drawing pump, a 702-filter screen, a 703-fourth water inlet, an 8-sealing water barrel, a 9-cleaning solution valve II, a 10-sealing water inlet valve II, a 11-second Roots vacuum pump and a 12-controller are shown.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.
In the oxygen generating station of a smelting enterprise, a set of pressure swing adsorption oxygen generating system is provided, and two Roots vacuum pumps are arranged, so that in the preferred embodiment of the utility model, two Roots vacuum pumps are correspondingly arranged. As shown in fig. 1 to 5, a Roots vacuum pump impeller descaling device comprises: the cleaning solution barrel 1, the clear water barrel 2, the blending barrel 3, the cleaning solution valve I4, the cleaning solution valve II 9, the sealing water inlet valve I5, the sealing water inlet valve II 10, the first Roots vacuum pump 6, the second Roots vacuum pump 11, the filter barrel 7 and the sealing water barrel 8.
The cleaning solution barrel 1 is communicated with the clear water barrel 2 through a pipeline and the blending barrel 3, a first liquid pump 101 and a first water inlet 102 are arranged in the cleaning solution barrel 1 and the clear water barrel 2, citric acid liquid for cleaning and descaling is added into the cleaning solution barrel through the first water inlet 102 of the cleaning solution barrel 1, and clear water for diluting the citric acid liquid is added into the cleaning solution barrel through the first water inlet 102 of the clear water barrel 2. The blending barrel 3 is provided with a second liquid-extracting pump 301 and a stirrer 302, the first liquid-extracting pump 101 in the cleaning liquid barrel 1 and the clear water barrel 2 are respectively communicated with the acid inlet 303 and the second water inlet 304 of the blending barrel 3 through pipelines, citric acid liquid and clear water are conveyed into the blending barrel 3 through the first liquid-extracting pump 101, and the stirrer 302 is controlled to stir and dilute. The citric acid has small corrosion to metal, is a safe cleaning agent, and does not cause stress corrosion of equipment because the citric acid does not contain Cl-, and can complex Fe3+, weaken the promotion effect of Fe3+ on corrosion, and meanwhile, the citric acid liquid is prepared according to the actual use condition: the ratio of clear water is 1:20, and the diluted citric acid solution is continuously added before the Roots vacuum pump is stopped for 10 minutes, so that the Roots impeller can be well descaled.
The second liquid-drawing pump 301 in the blending barrel 3 is respectively communicated with the water inlets of the first Roots vacuum pump 6 and the second Roots vacuum pump 11 through pipelines, a cleaning liquid valve I4 is arranged on the pipeline communicated with the first Roots vacuum pump 6, and a cleaning liquid valve II 9 is arranged on the pipeline communicated with the second Roots vacuum pump 11; meanwhile, a sealing water inlet valve I5 is arranged on a pipeline of the sealing water bucket 8 communicated with the water inlet of the first Roots vacuum pump 6, and a sealing water inlet valve II 10 is arranged on a pipeline of the sealing water bucket 8 communicated with the water inlet of the second Roots vacuum pump 11. Before the Roots vacuum pump is stopped, the sealing water inlet valve I5 and the sealing water inlet valve II 10 are controlled to be closed, sealing water is stopped to be conveyed to the first Roots vacuum pump 6 and the second Roots vacuum pump 11, meanwhile, the cleaning solution valve I4 and the cleaning solution valve II 9 are controlled to be opened, the second liquid pump 301 is controlled to convey diluted citric acid liquid of the blending barrel 3 into the first Roots vacuum pump 6 and the second Roots vacuum pump 11, and after the front end, the rear end and the middle part of the Roots impeller are sprayed and descaled by 3 spray heads in the first Roots vacuum pump 6 and the second Roots vacuum pump 11, manual jigger can be realized, and the phenomenon of blockage of the Roots vacuum pump is avoided.
The first Roots vacuum pump 6 and the second Roots vacuum pump 11 are communicated with the blending barrel 3 through a pipeline, and a filter barrel 7 is arranged on the pipeline communicated with the blending barrel 3; the filter barrel 7 is provided with a third liquid pump 701, a filter screen 702 for filtering dirt discharged from a water outlet, and a fourth water inlet 703 communicated with water outlet pipelines of the first Roots vacuum pump 6 and the second Roots vacuum pump 11. The waste citric acid liquid discharged from the water outlets of the first Roots vacuum pump 6 and the second Roots vacuum pump 11 enters the filter barrel 7 through the fourth water inlet 703, the waste citric acid liquid is filtered after passing through the filter screen 702, and the filtered waste citric acid liquid is conveyed to the blending barrel 3 again through the third water inlet 305 by the third liquid pump 701 for transfusion cleaning. Through filtering citric acid waste liquid, resources can be fully utilized, waste is avoided, and cost is saved.
Preferably, the cleaning solution valve I4, the cleaning solution valve II 9, the sealing water inlet valve I5 and the sealing water inlet valve II 10 are electromagnetic valves, and are electrically connected with the controller 12 and uniformly controlled by the controller 12; the first liquid pump 101, the second liquid pump 301, the stirrer 302, and the third liquid pump 701 are electrically connected to the controller 12, and are controlled by the controller 12. The controller 12 is a PLC control, and the controller 12 is used for unified control, so that the operation of workers can be facilitated, and the cleaning and descaling work of the Roots impeller can be safely and stably completed.
The scheme of the utility model has the advantages that: according to the utility model, the cleaning liquid barrel 1, the clear water barrel 2 and the blending barrel 3 are used, so that the clean citric acid liquid can be well blended and diluted, the operation of using sealing water and adding citric acid before shutdown during production is realized through valve switching, the front end, the rear end and the middle part of the impeller of the Roots vacuum pump are sprayed and descaled by using the original sealing water spray heads of the Roots vacuum pump, the blocking phenomenon of the Roots vacuum pump during shutdown is effectively eliminated, the manual jigger can be realized, the safe and normal operation of jigger operation is ensured, and the production effective operation rate is improved. According to the utility model, the citric acid waste liquid is filtered and recovered through the filter drum 7, so that resources can be fully used, and the cost is saved.
Finally, it is noted that the above-mentioned preferred embodiments are merely for illustrating the technical solution of the utility model, and not for limiting the utility model, which has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (5)
1. A Roots vacuum pump impeller descaling device is characterized in that: comprises a cleaning liquid barrel (1), a clear water barrel (2), a blending barrel (3), a cleaning liquid valve I (4), a sealing water inlet valve I (5), a first Roots vacuum pump (6) and a sealing water barrel (8); the cleaning liquid barrel (1) is communicated with the clear water barrel (2) and the blending barrel (3) through a pipeline; the blending barrel (3) is communicated with the water inlet of the first Roots vacuum pump (6) through a pipeline, a cleaning liquid valve I (4) is arranged on the pipeline communicated with the first Roots vacuum pump (6), and a sealing water inlet valve I (5) is arranged on the pipeline communicated with the sealing barrel (8) and the water inlet of the first Roots vacuum pump (6); the water outlet of the first Roots vacuum pump (6) is communicated with the blending barrel (3) through a pipeline.
2. The impeller descaling device of the Roots vacuum pump according to claim 1, wherein the descaling device is characterized in that: the cleaning liquid barrel (1) and the clear water barrel (2) are respectively provided with a first liquid pump (101) and a first water inlet (102).
3. The impeller descaling device of the Roots vacuum pump according to claim 1, wherein the descaling device is characterized in that: the blending barrel (3) is provided with a second liquid pump (301), a stirrer (302) and an acid inlet (303).
4. The impeller descaling device of the Roots vacuum pump according to claim 1, wherein the descaling device is characterized in that: a filter tank (7) is arranged on a pipeline communicated with the blending tank (3) by the first Roots vacuum pump (6); the filter barrel (7) is internally provided with a third liquid pump (701), a filter screen (702) for filtering dirt discharged from the water outlet, and a fourth water inlet (703) communicated with a water outlet pipeline of the first Roots vacuum pump (6).
5. The impeller descaling device of the Roots vacuum pump according to any one of claims 1 to 4, wherein the descaling device is characterized in that: the cleaning liquid valve I (4) and the sealing water inlet valve I (5) are electromagnetic valves and are electrically connected with the controller (12) and uniformly controlled by the controller (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321392005.4U CN220111788U (en) | 2023-06-02 | 2023-06-02 | Roots vacuum pump impeller scale removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321392005.4U CN220111788U (en) | 2023-06-02 | 2023-06-02 | Roots vacuum pump impeller scale removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220111788U true CN220111788U (en) | 2023-12-01 |
Family
ID=88915546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321392005.4U Active CN220111788U (en) | 2023-06-02 | 2023-06-02 | Roots vacuum pump impeller scale removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220111788U (en) |
-
2023
- 2023-06-02 CN CN202321392005.4U patent/CN220111788U/en active Active
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