CN110905810A - Water ring vacuum pump with self-cleaning function - Google Patents
Water ring vacuum pump with self-cleaning function Download PDFInfo
- Publication number
- CN110905810A CN110905810A CN201911238825.6A CN201911238825A CN110905810A CN 110905810 A CN110905810 A CN 110905810A CN 201911238825 A CN201911238825 A CN 201911238825A CN 110905810 A CN110905810 A CN 110905810A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- rotary
- driving
- hole group
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/001—General arrangements, plants, flowsheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a water ring vacuum pump with a self-cleaning function.A cylindrical inner shell is rotatably arranged in a pump body main body; the cleaning device comprises a cylindrical supporting central column; the rotating central shaft of the supporting central column is positioned at the lower side of the rotating central shaft of the inner shell and the rotating central shaft of the supporting central column and the rotating central shaft of the inner shell are arranged in parallel; the supporting central column is pivoted on the rear end surface of the front end cover; a cleaning and adjusting groove in the shape of a cylindrical groove is formed in the supporting central column; a rotary driving shaft is formed in the center of the rear side wall of the cleaning adjusting groove; the rotary driving shaft is sleeved with a rotary adjusting sleeve, and the rotary adjusting sleeve is arranged in a rotary mode relative to the rotary driving shaft; the rotary adjusting sleeve and the rotary driving shaft pass through the front side wall and the front end cover of the cleaning adjusting groove forwards; the rotary adjusting sleeve is pivoted on the front end cover; the outer cylindrical surface of the supporting central column is provided with a plurality of blades which are uniformly distributed on the circumference in an inclined and telescopic manner. The inner cylindrical surface of the inner shell can be cleaned without disassembly, and the inner cylindrical surface cleaning device is convenient and effective.
Description
Technical Field
The invention relates to the field of water ring vacuum pumps, in particular to a water ring vacuum pump with a self-cleaning function.
Background
With the development from acid papermaking to neutral papermaking, the scaling of a papermaking water ring vacuum pump is a problem frequently encountered by each papermaking enterprise, and with the generation of scaling substances, the influence of the scaling substances on a paper machine is gradually shown. In the prior art, the water ring vacuum pump needs to be disassembled and cleaned, and the cleaning process is quite complicated, time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to provide a water ring vacuum pump with a self-cleaning function, aiming at the technical problem that the cleaning process of the existing water ring vacuum pump is quite complicated.
The technical scheme for solving the technical problems is as follows: a water ring vacuum pump with a self-cleaning function comprises a pump body and a cleaning device; the pump body comprises a cylindrical pump body in the middle, a rear end cover detachably arranged on the rear end face of the pump body and a front end cover detachably arranged on the front end face of the pump body; the rear end cover is provided with an air inlet pipe, an exhaust pipe and a water inlet; a cylindrical inner shell is rotatably arranged in the pump body main body; a rotary driving device for driving the inner shell to rotate is arranged on the outer surface of the pump body main body; the cleaning device comprises a cylindrical supporting central column; the rotating central shaft of the supporting central column is positioned at the lower side of the rotating central shaft of the inner shell and the rotating central shaft of the supporting central column and the rotating central shaft of the inner shell are arranged in parallel; the supporting central column is pivoted on the rear end surface of the front end cover; a cleaning and adjusting groove in the shape of a cylindrical groove is formed in the supporting central column; a rotary driving shaft is formed in the center of the rear side wall of the cleaning adjusting groove; the rotary driving shaft is sleeved with a rotary adjusting sleeve, and the rotary adjusting sleeve is arranged in a rotary mode relative to the rotary driving shaft; the rotary adjusting sleeve and the rotary driving shaft pass through the front side wall and the front end cover of the cleaning adjusting groove forwards; the rotary adjusting sleeve and the rotary driving shaft are pivoted on the front end cover; the front end of the rotary driving shaft is fixedly connected with the rear end of an output shaft of the driving motor; a plurality of blades which are uniformly distributed circumferentially are arranged on the outer cylindrical surface of the supporting central column in an inclined and telescopic manner; the inner side ends of the blades are hinged with telescopic driving rods; a plurality of telescopic sleeve rods arranged in the radial direction are formed on the outer cylindrical surface of the rotary adjusting sleeve; the telescopic driving rod is radially and telescopically arranged on the telescopic sleeve rod on the corresponding side.
Preferably, the pump body has a rotary drive groove in the shape of a circular groove formed in an inner cylindrical surface thereof; a driving frame is formed on the outer surface of the pump body main body; a main driving groove in the shape of a cylindrical groove is formed in the driving frame; the main driving groove is communicated with the rotary driving groove; a gear ring is formed in the outer cylindrical surface of the inner shell; the gear ring is positioned in the rotary driving groove; the rotary driving device comprises a rotary driving motor and a driving gear; the driving gear is pivoted between the front side wall and the rear side wall of the main driving groove and is meshed with the gear ring; the rotary driving motor is fixed on the outer surface of the pump body at the front side of the driving frame; the front end of the rotating central shaft of the driving gear is fixedly connected with an output shaft of a rotating driving motor.
Preferably, the rotary driving shaft is provided with a vacuum limit hole group and a cleaning limit hole group on the cylindrical surface of the front part of the front end cover; the vacuum limit hole group and the cleaning limit hole group respectively comprise a plurality of threaded holes which are uniformly distributed on the circumference and are radially arranged, and the number of the threaded holes is the same as that of the threaded holes; a certain included angle is formed between the vacuum limit hole group and the cleaning limit hole group; a plurality of radially arranged limit bolts which are uniformly distributed circumferentially are inserted on the rotary driving shaft; the limit bolt is matched with the threaded holes of the vacuum limit hole group and the cleaning limit hole group; the number of the limit bolts is the same as that of the threaded holes of the vacuum limit hole group and the clean limit hole group respectively.
Preferably, in the above-described aspect, the number of the threaded holes in each of the vacuum limit hole group and the cleaning limit hole group is at least three.
Preferably, the outer end of the blade is formed as a semi-cylindrical surface.
Preferably, when the vane is extended to the maximum, the outer end of the lowermost vane is in contact with the inner cylindrical surface of the inner casing.
Preferably, the lower end of the pump body is provided with a plurality of discharge ports which penetrate through the pump body in the radial direction; a plurality of radially penetrating discharge ports matched with the discharge ports are formed on the inner shell; a sealing plug is arranged in the discharge hole.
The invention has the beneficial effects that: simple structure need not to dismantle and can clean the interior cylinder face of inner casing, and is convenient effective.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention;
fig. 2 is a schematic structural view of a cross section of the present invention.
In the figure, 10, a pump body; 100. a rotation driving groove; 11. an air inlet pipe; 12. an exhaust pipe; 13. a drive frame; 130. a main drive slot; 14. an inner housing; 141. a ring gear; 20. a cleaning device; 21. a rotary drive motor; 22. a driving gear; 23. a support center post; 231. a rotary drive shaft; 2310. cleaning a limit hole group; 2311. a vacuum limit hole group; 24. a blade; 241. a telescopic driving rod; 25. rotating the adjusting sleeve; 251. a telescopic loop bar; 252. and a limiting bolt.
Detailed Description
As shown in fig. 1 and 2, a water ring vacuum pump with a self-cleaning function comprises a pump body and a cleaning device 20; the pump body comprises a cylindrical pump body 10 in the middle, a rear end cover detachably arranged on the rear end face of the pump body and a front end cover 15 detachably arranged on the front end face of the pump body 10; the rear end cover is provided with an air inlet pipe 11, an exhaust pipe 12 and a water inlet; a cylindrical inner housing 14 rotatably provided inside the pump body 10; a rotary driving device for driving the inner shell 14 to rotate is arranged on the outer surface of the pump body 10; the cleaning device 20 comprises a cylindrical supporting central column 23; the rotation center axis of the support center column 23 is located at the lower side of the rotation center axis of the inner housing 14 and the two directions are arranged in parallel; the supporting central column 23 is pivoted on the rear end surface of the front end cover 15; a cleaning adjusting groove 230 in the shape of a cylindrical groove is formed in the supporting central column 23; a rotation driving shaft 231 is formed at the center of the rear sidewall of the cleaning adjustment groove 230; the rotation driving shaft 231 is sleeved with a rotation adjusting sleeve 25, and the rotation adjusting sleeve 25 is rotatably arranged relative to the rotation driving shaft 231; the rotation regulation sleeve 25 and the rotation driving shaft 231 pass forward through the front side wall of the cleaning regulation groove 230 and the front cover 15; the rotary adjusting sleeve 25 and the rotary driving shaft 231 are pivoted on the front end cover 15; the front end of the rotary driving shaft 231 is fixedly connected with the rear end of the output shaft of the driving motor; a plurality of blades 24 which are uniformly distributed on the circumference are obliquely and telescopically arranged on the outer cylindrical surface of the supporting central column 23; the inner end of the blade 24 is hinged with a telescopic driving rod 241; a plurality of telescopic loop bars 251 which are radially arranged are formed on the outer cylindrical surface of the rotary adjusting sleeve 25; the telescopic driving rod 241 radially extends and retracts the telescopic sleeve rod 251 provided at the corresponding side.
As shown in fig. 1, a rotary drive groove 100 in the form of a circular groove is formed on the inner cylindrical surface of the pump body 10; a driving frame 13 is formed on the outer surface of the pump body 10; a main driving groove 130 in the shape of a cylindrical groove is formed inside the driving frame 13; the main driving groove 130 communicates with the rotation driving groove 100; a ring gear 141 is formed in the outer cylindrical surface of the inner housing 14; ring gear 141 is located within rotary drive slot 100; the rotation driving device comprises a rotation driving motor 21 and a driving gear 22; the driving gear 22 is pivotally arranged between the front and rear side walls of the main driving groove 130 and the driving gear 22 is engaged with the gear ring 141; the rotary drive motor 21 is fixed to the outer surface of the pump body 10 at a position on the front side of the drive frame 13; the front end of the rotation center shaft of the drive gear 22 is fixedly connected to the output shaft of the rotation drive motor 21.
As shown in fig. 2, a vacuum limit hole group 2311 and a cleaning limit hole group 2310 are formed on the cylindrical surface of the portion of the rotary drive shaft 231 located on the front side of the front end cover 15; the vacuum limit hole group 2311 and the cleaning limit hole group 2310 respectively comprise a plurality of threaded holes which are uniformly distributed on the circumference and are radially arranged, and the number of the threaded holes is the same as that of the threaded holes; a certain included angle is arranged between the vacuum limit hole group 2311 and the cleaning limit hole group 2310; a plurality of radially arranged limit bolts 252 which are uniformly distributed circumferentially are inserted on the rotary driving shaft 231; the limit bolt 252 is matched with the threaded holes of the vacuum limit hole group 2311 and the cleaning limit hole group 2310; the number of the limit bolts 252 is the same as the number of the screw holes of the vacuum limit hole group 2311 and the cleaning limit hole group 2310, respectively.
As shown in fig. 1 and 2, the number of the screw holes of the vacuum limit hole group 2311 and the cleaning limit hole group 2310 is at least three.
As shown in fig. 1, the outboard end of the blade 24 is shaped as a semi-cylindrical surface.
When vanes 24 are extended the most, the outer ends of lowermost vanes 24 are in contact with the inner cylindrical surface of inner housing 14.
A plurality of discharge openings which penetrate through in the radial direction are formed at the lower end of the pump body main body 10; a plurality of radially penetrating discharge ports matched with the discharge ports are formed on the inner shell 14; a sealing plug is arranged in the discharge hole.
The working principle of the water ring vacuum pump with the self-cleaning function is as follows:
when the vacuum application works; the limit bolt 252 is screwed in the vacuum limit hole group 2311, and the vane 24 is positioned at the shortest extension;
when the cleaning device is used for cleaning, the limiting bolt 252 is screwed in the cleaning limiting hole group 2310, the blades 24 extend to the longest, the outer side end of the blade 24 at the lowest side is contacted with the inner cylindrical surface of the inner shell 14, water is arranged at the lower part of the inner shell 14, then the inner shell 14 rotates, so that the inner cylindrical surface of the inner shell 14 drops into the water under the action of the outer side end of the blade 24 at the lowest side, and finally the water is discharged from the discharge hole and the discharge hole at one time.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.
Claims (7)
1. A water ring vacuum pump with a self-cleaning function comprises a pump body and a cleaning device (20); the pump body comprises a cylindrical pump body (10) in the middle, a rear end cover which is detachably arranged on the rear end face of the pump body and a front end cover (15) which is detachably arranged on the front end face of the pump body (10); the rear end cover is provided with an air inlet pipe (11), an air outlet pipe (12) and a water inlet; the method is characterized in that: a cylindrical inner housing (14) is rotatably provided inside the pump body (10); a rotary driving device for driving the inner shell (14) to rotate is arranged on the outer surface of the pump body main body (10); the cleaning device (20) comprises a cylindrical supporting central column (23); the rotation central shaft of the supporting central column (23) is positioned at the lower side of the rotation central shaft of the inner shell (14) and the directions of the rotation central shaft and the rotation central shaft are arranged in parallel; the supporting central column (23) is pivoted on the rear end surface of the front end cover (15); a cleaning and adjusting groove (230) in the shape of a cylindrical groove is formed in the supporting central column (23); a rotary driving shaft (231) is formed at the center of the rear side wall of the cleaning adjusting groove (230); the rotary driving shaft (231) is sleeved with a rotary adjusting sleeve (25), and the rotary adjusting sleeve (25) is rotationally arranged relative to the rotary driving shaft (231); the rotary adjusting sleeve (25) and the rotary driving shaft (231) forwards penetrate through the front side wall of the cleaning adjusting groove (230) and the front end cover (15); the rotary adjusting sleeve (25) and the rotary driving shaft (231) are pivoted on the front end cover (15); the front end of the rotary driving shaft (231) is fixedly connected with the rear end of an output shaft of the driving motor; a plurality of blades (24) which are uniformly distributed on the circumference are obliquely and telescopically arranged on the outer cylindrical surface of the supporting central column (23); the inner side end of each blade (24) is hinged with a telescopic driving rod (241); a plurality of telescopic sleeve rods (251) which are arranged in the radial direction are formed on the outer cylindrical surface of the rotary adjusting sleeve (25); the telescopic driving rod (241) is radially and telescopically arranged on the telescopic sleeve rod (251) on the corresponding side.
2. A water ring vacuum pump with a self-cleaning function as claimed in claim 1, wherein: a rotary driving groove (100) in the shape of a circular ring groove is formed on the inner cylindrical surface of the pump body main body (10); a driving frame (13) is formed on the outer surface of the pump body (10); a main driving groove (130) in a cylindrical groove shape is formed in the driving frame (13); the main driving groove (130) is communicated with the rotary driving groove (100); a gear ring (141) is formed in the outer cylindrical surface of the inner shell (14); the gear ring (141) is positioned in the rotary driving groove (100); the rotary driving device comprises a rotary driving motor (21) and a driving gear (22); the driving gear (22) is pivoted between the front side wall and the rear side wall of the main driving groove (130), and the driving gear (22) is meshed with the gear ring (141); the rotary driving motor (21) is fixed on the outer surface of the pump body (10) at the front side of the driving frame (13); the front end of the rotation central shaft of the driving gear (22) is fixedly connected with the output shaft of the rotation driving motor (21).
3. A water ring vacuum pump with a self-cleaning function as claimed in claim 1, wherein: a vacuum limit hole group (2311) and a cleaning limit hole group (2310) are formed on the cylindrical surface of the part of the rotary driving shaft (231) positioned at the front side of the front end cover (15); the vacuum limit hole group (2311) and the cleaning limit hole group (2310) respectively comprise a plurality of threaded holes which are uniformly distributed on the circumference and are radially arranged, and the number of the threaded holes is the same as that of the threaded holes; a certain included angle is arranged between the vacuum limit hole group (2311) and the cleaning limit hole group (2310); a plurality of radially arranged limiting bolts (252) which are uniformly distributed on the circumference are inserted on the rotary driving shaft (231); the limit bolt (252) is matched with the threaded holes of the vacuum limit hole group (2311) and the cleaning limit hole group (2310); the number of the limit bolts (252) is the same as the number of the threaded holes of the vacuum limit hole group (2311) and the cleaning limit hole group (2310).
4. A water ring vacuum pump with a self-cleaning function as claimed in claim 3, wherein: the number of the threaded holes of the vacuum limit hole group (2311) and the cleaning limit hole group (2310) is at least three respectively.
5. A water ring vacuum pump with a self-cleaning function as claimed in claim 1, wherein: the outer side end of the blade (24) is shaped as a semi-cylindrical surface.
6. A water ring vacuum pump with a self-cleaning function as claimed in claim 1, wherein: when the vane (24) is extended to the maximum, the outer end of the lowermost vane (24) is in contact with the inner cylindrical surface of the inner casing (14).
7. A water ring vacuum pump with a self-cleaning function as claimed in claim 1, wherein: a plurality of discharge openings which penetrate through in the radial direction are formed at the lower end of the pump body main body (10); a plurality of radially penetrating discharge holes matched with the discharge holes are formed on the inner shell (14); a sealing plug is arranged in the discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238825.6A CN110905810A (en) | 2019-12-06 | 2019-12-06 | Water ring vacuum pump with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238825.6A CN110905810A (en) | 2019-12-06 | 2019-12-06 | Water ring vacuum pump with self-cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110905810A true CN110905810A (en) | 2020-03-24 |
Family
ID=69823217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911238825.6A Withdrawn CN110905810A (en) | 2019-12-06 | 2019-12-06 | Water ring vacuum pump with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110905810A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307486A (en) * | 2023-10-20 | 2023-12-29 | 山东富安集团真空科技有限公司 | Water ring type vacuum pump for self-cleaning scale |
-
2019
- 2019-12-06 CN CN201911238825.6A patent/CN110905810A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307486A (en) * | 2023-10-20 | 2023-12-29 | 山东富安集团真空科技有限公司 | Water ring type vacuum pump for self-cleaning scale |
| CN117307486B (en) * | 2023-10-20 | 2024-02-09 | 山东富安集团真空科技有限公司 | Water ring type vacuum pump for self-cleaning scale |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110925201A (en) | Water ring vacuum pump with separable blades | |
| US2684035A (en) | Fluid pump | |
| CN110905810A (en) | Water ring vacuum pump with self-cleaning function | |
| CN110925202A (en) | Clean water ring vacuum pump is wiped away to revolution formula | |
| CN112915912B (en) | Environment-friendly energy-saving building raw material stirring machine | |
| CN107326954B (en) | Silt cleaning device | |
| CN111810440B (en) | Centrifugal water pump | |
| CN207996716U (en) | A kind of feeding device for crushing machine | |
| CN216972087U (en) | High-efficient reverse osmosis unit | |
| JP5106728B2 (en) | underwater pump | |
| CN216531007U (en) | Steel shell motor junction box assembling and positioning device | |
| CN212250362U (en) | Multi-stage water pump | |
| CN210097504U (en) | Asphalt warm mixing auxiliary device for building construction | |
| CN113041687A (en) | Water power filter for micro irrigation | |
| CN108916075A (en) | A kind of fountain project special pump that can be cleared up automatically | |
| CN105477958A (en) | Starch dust collector | |
| CN216654423U (en) | Feeding device is used in laundry liquid production and processing | |
| JPH0627832Y2 (en) | Energy recovery equipment | |
| RU2294456C1 (en) | Fluid-ring machine | |
| CN219112342U (en) | Water washing device for activated carbon processing | |
| RU163727U1 (en) | RING PUMP | |
| CN220791512U (en) | Anti-blocking pulp pump | |
| CN216477888U (en) | Sewage pump capable of pumping and draining quickly | |
| CN219693765U (en) | Wheat drying device is used in flour processing | |
| CN211346181U (en) | Rotary grain drier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200324 |