CN110925202A - Clean water ring vacuum pump is wiped away to revolution formula - Google Patents
Clean water ring vacuum pump is wiped away to revolution formula Download PDFInfo
- Publication number
- CN110925202A CN110925202A CN201911238824.1A CN201911238824A CN110925202A CN 110925202 A CN110925202 A CN 110925202A CN 201911238824 A CN201911238824 A CN 201911238824A CN 110925202 A CN110925202 A CN 110925202A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- central
- column
- driving
- pump body
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims abstract description 106
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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
-
- B08B1/165—
-
- B08B1/32—
-
- 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
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
-
- 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
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 revolution type wiping clean water ring vacuum pump, which comprises a pump body and a cleaning device, wherein the pump body is provided with a water ring vacuum pump; a revolution avoidance hole of a cylindrical groove penetrating through the front and the back for the central driving column to revolve around the rotation central shaft of the pump body as a central shaft is formed on the front end cover; the revolution avoidance hole is coaxially arranged with the pump body main body; a cylindrical plate-shaped cleaning driving plate is rotatably arranged on the front end surface of the front end cover; a long-hole-shaped cleaning adjusting hole which is penetrated in front and back and used for the vertical radial movement of the central driving column is formed in the cleaning driving plate; the front end of the central driving column is provided with a connecting shaft device; when the central driving column is positioned at the uppermost end of the cleaning adjusting hole, the supporting central column is in a vacuum working state; when the central driving column is positioned at the lowest end of the cleaning adjusting hole, the supporting central column is in a cleaning state. The invention has simple structure, can clean the inner cylindrical surface of the pump body without disassembly, and is convenient and effective.
Description
Technical Field
The invention relates to the field of water ring vacuum pumps, in particular to a revolution type scraping and cleaning water ring vacuum pump.
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 revolution type wiping cleaning water ring vacuum pump 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 revolution type water ring vacuum pump for wiping and cleaning 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 supporting central column is arranged in the pump body in a rotating way; the rotating central shaft of the supporting central column is positioned right below the rotating central shaft of the pump body and is arranged in parallel with the rotating central shaft; a plurality of blades which are uniformly distributed in a circumferential manner and are obliquely arranged are formed on the cylindrical surface of the supporting central column; a central driving column is formed in the center of the front end face of the supporting central column;
a revolution avoidance hole of a cylindrical groove penetrating through the front and the back for the central driving column to revolve around the rotation central shaft of the pump body as a central shaft is formed on the front end cover; the revolution avoidance hole is coaxially arranged with the pump body main body; the cleaning device comprises a cylindrical plate-shaped cleaning driving plate; the cleaning driving plate is rotatably arranged on the front end face of the front end cover; the cleaning drive plate and the pump body main body are coaxially arranged; a long-hole-shaped cleaning adjusting hole which is penetrated in front and back and used for the vertical radial movement of the central driving column is formed in the cleaning driving plate; the front end of the central driving column is provided with a connecting shaft device; when the central driving column is positioned at the uppermost end of the cleaning adjusting hole, the supporting central column is in a vacuum working state, and the central driving column is fixedly connected with the rear end of an output shaft of a vacuum working motor at the front side through a connecting shaft device; when the central driving column is positioned at the lowest end of the cleaning adjusting hole, the supporting central column is in a cleaning state, and the blades at the lowest end are in contact with the inner cylindrical surface of the pump body.
Preferably, the front end of the central driving column is provided with a water baffle; the water baffle is vertically inserted and movably arranged inside the cleaning driving plate.
Preferably, the cleaning driving plate is formed with a gear ring on the outer cylindrical surface; a cleaning driving motor is fixed on the front end surface of the front end cover; a cleaning driving gear is fixed at the front end of an output shaft of the cleaning driving motor; the cleaning driving gear is meshed with the gear ring of the cleaning driving plate.
Preferably, the front end face of the cleaning driving plate is provided with an adjusting supporting block in a radial moving manner; the central driving column passes through and is pivoted on the adjusting support block.
Preferably, the front end surface of the cleaning driving plate is formed with a pair of adjusting guide grooves; the pair of adjusting guide grooves are arranged in bilateral symmetry relative to the cleaning adjusting hole and are arranged in parallel; a pair of adjusting guide blocks matched with the adjusting guide grooves are formed on the rear end surface of the adjusting support block; a driving supporting block is formed at the upper end of the front end face of the cleaning driving plate; a pair of regulating guide insertion rods which are symmetrically arranged left and right are formed on the upper end surface of the regulating supporting block; the direction of the adjusting guide inserted bar is parallel to the cleaning adjusting hole and vertically penetrates through the driving supporting block; an adjusting driving bolt is pivoted at the center of the upper end face of the adjusting supporting block; the adjusting driving bolt is vertically screwed on the driving supporting block.
Preferably, the lower end of the front end face of the cleaning driving plate is formed with a limiting supporting block; the limiting supporting block is perpendicular to the cleaning adjusting hole; a cylindrical limiting insert column is formed on the upper end surface of the limiting supporting block; a limiting groove which is radially arranged and is used for inserting the cylindrical limiting inserting column is formed on the central driving column; when the central driving column is positioned at the lowest end of the cleaning adjusting hole, the cylindrical limiting inserting column is inserted into the limiting groove of the central driving column.
Preferably, the coupling device comprises a spline housing; the spline housing is sleeved in front and back of the front part of the central driving column; a spline matched with the spline sleeve is formed at the front end of the central driving column and the rear end of the output shaft of the vacuum working motor; the rear end of the output shaft of the vacuum working motor is fixedly provided with a front connecting plate; a plurality of connecting threaded holes which are uniformly distributed circumferentially are formed in the front end surface of the spline sleeve; a plurality of connecting bolts penetrate through the front connecting plate from front to back; the connecting bolt is matched with the connecting threaded hole.
Preferably, a plurality of radially penetrating water drainage holes are formed in the lower side of the pump body and are uniformly distributed in the front and at the back; a sealing plug is arranged in the drain hole.
The invention has the beneficial effects that: simple structure need not to dismantle and can clean the interior cylinder face of pump body main part, and is convenient effective.
Drawings
FIG. 1 is a schematic structural view of a cross section of the present invention;
fig. 2 is a front view of the present invention.
In the figure, 10, the pump body; 11. a pump body; 12. a rear end cap; 13. an air inlet pipe; 14. an exhaust pipe; 15. a central drive column; 151. a spline; 152. a water baffle; 16. a support center post; 17. a blade; 18. a front end cover; 19. a spline housing; 190. connecting the threaded hole; 20. a cleaning device; 21. cleaning the drive gear; 22. cleaning the driving plate; 220. adjusting the guide groove; 2200. cleaning the adjusting hole; 221. driving the support block; 222. a limiting supporting block; 223. the column is limited and inserted; 23. adjusting the supporting block; 231. adjusting the guide inserted bar; 232. the drive bolt is adjusted.
Detailed Description
As shown in fig. 1 and 2, a revolving type water ring vacuum pump for wiping cleaning comprises a pump body 10 and a cleaning device 20; the pump body 10 comprises a cylindrical pump body 11 in the middle, a rear end cover 12 detachably mounted on the rear end face of the pump body 11, and a front end cover 18 detachably mounted on the front end face of the pump body 11; the rear end cover 12 is provided with an air inlet pipe 13, an air outlet pipe 14 and a water inlet; a supporting central column 16 is rotatably arranged in the pump body 11; the rotation center axis of the support center post 16 is located directly below the rotation center axis of the pump body 11 and arranged in parallel; a plurality of blades 17 which are uniformly distributed in a circumferential manner and are obliquely arranged are formed on the cylindrical surface of the supporting central column 16; a central driving column 15 is formed in the center of the front end face of the supporting central column 16;
as shown in fig. 2, the front end cover 18 is formed with a revolution avoiding hole of a cylindrical groove penetrating forward and backward for the central driving column 15 to revolve around the rotation central axis of the pump body 11 as the central axis; the revolution avoidance hole is coaxially arranged with the pump body 11; the cleaning device 20 includes a cleaning drive plate 22 in the form of a cylindrical plate; a cleaning drive plate 22 is rotatably provided on the front end face of the front end cover 18; the cleaning drive plate 22 is arranged coaxially with the pump body 11; a cleaning adjusting hole 2200 in a long hole shape which penetrates through the cleaning driving plate 22 in the front and back and is used for the vertical radial movement of the central driving column 15 is formed on the cleaning driving plate; the front end of the central driving column 15 is provided with a connecting shaft device; when the central driving column 15 is positioned at the uppermost end of the cleaning adjusting hole 2200, the supporting central column 16 is in a vacuum working state, and at the moment, the central driving column 15 is fixedly connected with the rear end of the output shaft of the vacuum working motor at the front side through a shaft connecting device; when the center driving post 15 is positioned at the lowermost end of the cleaning adjustment hole 2200, the support center post 16 is in a cleaning state in which the lowermost vanes 17 are in contact with the inner cylindrical surface of the pump body 11.
As shown in FIG. 2, the front end of the central drive column 15 forms a water dam 152; the water guard 152 is vertically inserted and movably disposed inside the cleaning driving plate 22.
As shown in fig. 2, the cleaning drive plate 22 is formed with a ring gear on its outer cylindrical surface; a cleaning driving motor is fixed on the front end surface of the front end cover 18; a cleaning driving gear 21 is fixed at the front end of an output shaft of the cleaning driving motor; the cleaning drive gear 21 meshes with the ring gear of the cleaning drive plate 22.
As shown in fig. 2, an adjustment support block 23 is provided on the front end surface of the cleaning drive plate 22 to be radially movable; the central drive column 15 passes through and is pivoted on the adjustment support block 23.
As shown in fig. 2, a pair of adjustment guide grooves 220 are formed on the front end surface of the cleaning drive plate 22; the pair of adjustment guide grooves 220 are disposed in left-right symmetry with respect to the cleaning adjustment hole 2200 and in parallel; a pair of adjusting guide blocks matched with the adjusting guide grooves 220 are formed on the rear end surface of the adjusting support block 23; a driving supporting block 221 is formed at the upper end of the front end face of the cleaning driving plate 22; a pair of adjusting guide insertion rods 231 symmetrically arranged left and right are formed on the upper end surface of the adjusting support block 23; the direction of the adjustment guide insertion rod 231 is arranged parallel to the cleaning adjustment hole 2200 and vertically penetrates through the driving support block 221; an adjusting driving bolt 232 is pivoted at the center of the upper end face of the adjusting supporting block 23; the adjustment drive bolt 232 is vertically screwed to the drive support block 221.
As shown in fig. 2, a limit support block 222 is formed at the lower end of the front end surface of the cleaning driving plate 22; the limit supporting block 222 is perpendicular to the cleaning adjusting hole 2200; a cylindrical limiting inserting column 223 is formed on the upper end surface of the limiting supporting block 222; a limiting groove which is radially arranged and is used for inserting the cylindrical limiting inserting column 223 is formed on the central driving column 15; when the central driving post 15 is located at the lowermost end of the cleaning adjustment hole 2200, the cylindrical limit insert post 223 is inserted into the limit groove of the central driving post 15.
As shown in fig. 2, the coupling device includes a spline housing 19; the spline housing 19 is sleeved in front and back of the front part of the central driving column 15; a spline 151 matched with the spline sleeve 19 is formed at the front end of the central driving column 15 and the rear end of the output shaft of the vacuum working motor; the rear end of the output shaft of the vacuum working motor is fixedly provided with a front connecting plate; a plurality of connecting threaded holes 190 with uniformly distributed circumferences are formed on the front end surface of the spline housing 19; a plurality of connecting bolts penetrate through the front connecting plate from front to back; the coupling bolts are engaged with the coupling screw holes 190.
A plurality of radially penetrating water drainage holes which are uniformly distributed in the front and the back are formed on the lower side of the pump body 11; a sealing plug is arranged in the drain hole.
The working principle of the revolution type scraping cleaning water ring vacuum pump is as follows:
when the vacuum application works; the central driving column 15 is positioned at the uppermost end of the cleaning adjusting hole 2200, and the central driving column 15 is fixedly connected with the rear end of the output shaft of the vacuum working motor through a shaft connecting device;
when cleaning is needed, water is arranged at the lower part of the pump body 11, then the central driving column 15 is separated from an output shaft of a vacuum working motor, then the central driving column 15 moves downwards in the radial direction to the lowest end of the cleaning adjusting hole 2200, at the moment, the cylindrical limiting inserting column 223 is inserted into the limiting groove of the central driving column 15, the blade 17 at the lowest end is contacted with the inner cylindrical surface of the pump body 11, then the cleaning driving plate 22 is rotationally arranged, so that the central supporting column 16 and the rotating central shaft of the pump body 11 revolve around as the central shaft, so that the outer side end of the blade 17 scrapes the inner cylindrical surface of the pump body 11, and scale substances on the inner cylindrical surface of the pump body 11 fall into the water and are finally discharged from the.
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 (8)
1. A revolution type water ring vacuum pump for wiping and cleaning comprises a pump body (10) and a cleaning device (20); the pump body (10) comprises a cylindrical pump body (11) in the middle, a rear end cover (12) detachably arranged on the rear end face of the pump body (11) and a front end cover (18) detachably arranged on the front end face of the pump body (11); the rear end cover (12) is provided with an air inlet pipe (13), an air outlet pipe (14) and a water inlet; a supporting central column (16) is rotatably arranged in the pump body main body (11); the rotation central shaft of the supporting central column (16) is positioned right below the rotation central shaft of the pump body main body (11) and is arranged in parallel with the rotation central shaft; a plurality of blades (17) which are uniformly distributed in a circumferential manner and are obliquely arranged are formed on the cylindrical surface of the supporting central column (16); a central driving column (15) is formed in the center of the front end surface of the supporting central column (16);
the method is characterized in that: a revolution avoidance hole of a cylindrical groove which is penetrated back and forth and used for the revolution of the central driving column (15) by taking the rotating central shaft of the pump body (11) as a central shaft is formed on the front end cover (18); the revolution avoidance hole is coaxially arranged with the pump body main body (11); the cleaning device (20) comprises a cylindrical plate-shaped cleaning driving plate (22); the cleaning driving plate (22) is rotationally arranged on the front end surface of the front end cover (18); the cleaning drive plate (22) is coaxially arranged with the pump body main body (11); a cleaning adjusting hole (2200) which is in a long hole shape and penetrates through the cleaning driving plate (22) in the front and back direction and is used for the vertical radial movement of the central driving column (15); the front end of the central driving column (15) is provided with a connecting shaft device; when the central driving column (15) is positioned at the uppermost end of the cleaning adjusting hole (2200), the supporting central column (16) is in a vacuum working state, and the central driving column (15) is fixedly connected with the rear end of an output shaft of a vacuum working motor at the front side through a shaft connecting device; when the central driving column (15) is positioned at the lowest end of the cleaning adjusting hole (2200), the supporting central column (16) is in a cleaning state, and the blade (17) at the lowest end is contacted with the inner cylindrical surface of the pump body (11).
2. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: the front end of the central driving column (15) is provided with a water baffle (152); the water baffle (152) is vertically inserted and movably arranged inside the cleaning driving plate (22).
3. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: a gear ring is formed on the outer cylindrical surface of the cleaning driving plate (22); a cleaning driving motor is fixed on the front end surface of the front end cover (18); a cleaning driving gear (21) is fixed at the front end of an output shaft of the cleaning driving motor; the cleaning drive gear (21) meshes with the ring gear of the cleaning drive plate (22).
4. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: an adjusting supporting block (23) is arranged on the front end face of the cleaning driving plate (22) in a radial moving mode; the central driving column (15) passes through and is pivoted on the adjusting support block (23).
5. A revolving wiper cleaning water ring vacuum pump according to claim 4, characterized in that: a pair of adjusting guide grooves (220) are formed on the front end surface of the cleaning driving plate (22); the pair of adjusting guide grooves (220) are arranged in bilateral symmetry relative to the cleaning adjusting hole (2200) and are arranged in parallel; a pair of adjusting guide blocks matched with the adjusting guide grooves (220) are formed on the rear end surface of the adjusting support block (23); a driving supporting block (221) is formed at the upper end of the front end face of the cleaning driving plate (22); a pair of adjusting guide insertion rods (231) which are arranged in bilateral symmetry are formed on the upper end surface of the adjusting support block (23); the direction of the adjusting guide inserted rod (231) is arranged in parallel with the cleaning adjusting hole (2200) and vertically penetrates through the driving supporting block (221); the center of the upper end surface of the adjusting supporting block (23) is pivoted with an adjusting driving bolt (232); the adjusting driving bolt (232) is vertically screwed on the driving supporting block (221).
6. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: a limiting supporting block (222) is formed at the lower end of the front end face of the cleaning driving plate (22); the limiting supporting block (222) is perpendicular to the cleaning adjusting hole (2200); a cylindrical limiting insert column (223) is formed on the upper end surface of the limiting support block (222); a limiting groove which is radially arranged and is used for inserting the cylindrical limiting inserting column (223) is formed on the central driving column (15); when the central driving column (15) is positioned at the lowest end of the cleaning adjusting hole (2200), the cylindrical limiting inserting column (223) is inserted into the limiting groove of the central driving column (15).
7. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: the shaft connecting device comprises a spline sleeve (19); the spline housing (19) is sleeved in front and back of the front part of the central driving column (15); a spline (151) matched with the spline sleeve (19) is formed at the front end of the central driving column (15) and the rear end of an output shaft of the vacuum working motor; the rear end of the output shaft of the vacuum working motor is fixedly provided with a front connecting plate; a plurality of connecting threaded holes (190) which are uniformly distributed on the circumference are formed on the front end surface of the spline housing (19); a plurality of connecting bolts penetrate through the front connecting plate from front to back; the connecting bolt is matched with the connecting threaded hole (190).
8. A revolving wiper cleaning water ring vacuum pump according to claim 1, characterized in that: a plurality of radially penetrating water drainage holes which are uniformly distributed in the front and the back are formed on the lower side of the pump body main body (11); a sealing plug is arranged in the drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238824.1A CN110925202A (en) | 2019-12-06 | 2019-12-06 | Clean water ring vacuum pump is wiped away to revolution formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238824.1A CN110925202A (en) | 2019-12-06 | 2019-12-06 | Clean water ring vacuum pump is wiped away to revolution formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110925202A true CN110925202A (en) | 2020-03-27 |
Family
ID=69858020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911238824.1A Withdrawn CN110925202A (en) | 2019-12-06 | 2019-12-06 | Clean water ring vacuum pump is wiped away to revolution formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110925202A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352527A (en) * | 2022-01-07 | 2022-04-15 | 杨钰嘉 | Vertical water ring vacuum pump |
| 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 CN201911238824.1A patent/CN110925202A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352527A (en) * | 2022-01-07 | 2022-04-15 | 杨钰嘉 | Vertical water ring vacuum pump |
| CN114352527B (en) * | 2022-01-07 | 2023-11-17 | 中国铁建港航局集团有限公司 | Vertical water ring vacuum pump |
| 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 |
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|---|---|---|---|
| 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 |
Application publication date: 20200327 |
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| WW01 | Invention patent application withdrawn after publication |