CN114837955B - Slurry pump sealing leakage monitoring device - Google Patents
Slurry pump sealing leakage monitoring device Download PDFInfo
- Publication number
- CN114837955B CN114837955B CN202210563321.7A CN202210563321A CN114837955B CN 114837955 B CN114837955 B CN 114837955B CN 202210563321 A CN202210563321 A CN 202210563321A CN 114837955 B CN114837955 B CN 114837955B
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- spring
- force sensor
- floating ring
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 78
- 239000002002 slurry Substances 0.000 title claims abstract description 42
- 238000012806 monitoring device Methods 0.000 title claims abstract description 25
- 238000012856 packing Methods 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Abstract
The invention belongs to the technical field of slurry pump sealing, and particularly relates to a slurry pump sealing leakage monitoring device, which comprises a sealing component and a monitoring component; the sealing component is arranged between the auxiliary impeller shell and the pump shaft and comprises a floating ring sealing component, a packing sealing component and a labyrinth sealing component; the monitoring component includes a leak monitoring assembly and a wear monitoring assembly; compared with the prior art, the invention (1) avoids slurry leakage in the slurry pump through the combination of various sealing components, reduces the rust phenomenon at the joint of the pump shaft and other components, and prolongs the service life of the slurry pump; (2) The monitoring component in the slurry pump sealing leakage monitoring device comprises a leakage monitoring component and a wear monitoring component; when the liquid leaks to the gasket, the alarm gives out a leakage alarm; when the packing ring is worn, the alarm gives out a wear alarm.
Description
Technical Field
The invention belongs to the technical field of slurry pump sealing, and particularly relates to a slurry pump sealing leakage monitoring device.
Background
The slurry pump is a mechanical equipment which can increase the energy of solid-liquid mixed medium by means of centrifugal force (rotation of impeller of pump) and can convert electric energy into kinetic energy and potential energy of medium, and is mainly applicable to the fields of mine, power plant, dredging, metallurgy, chemical industry, building material and petroleum industry. The existing slurry pump power sealing structure is poor in sealing performance, sealing elements are severely worn in working, liquid rings on the auxiliary impellers drop onto the pump shafts when the pump shafts stop rotating, slurry is easy to leak, the connecting positions are easy to rust, the service life is short, and the requirements of modern society are difficult to meet. Therefore, how to design a slurry pump sealing cavity structure and monitor liquid leakage at the same time becomes the current problem to be solved.
CN109281865a proposes an improved method based on a packing seal structure, which uses the elastic force of the skeleton seal to compress the seal ring, but the volume of the skeleton seal is limited, the compressing force cannot be ensured for a long time, and a compressing force monitoring device is not provided; CN110645182a proposes a slurry pump sealing cavity structure, and the slurry is prevented from flowing out from the connecting place between the connecting pump shaft and the pump shell by using a waterproof mechanism, so that the connecting pump shaft is prevented from being rusted due to long-time contact with moisture, but the leakage of the liquid cannot be monitored in real time.
Disclosure of Invention
The invention aims at the problems and provides a slurry pump sealing leakage monitoring device.
In order to achieve the above purpose, the invention adopts the following technical scheme: a slurry pump seal leakage monitoring device comprises a sealing component and a monitoring component; the slurry pump comprises an auxiliary impeller, a pump shaft, an auxiliary impeller shell and a seal shell; the seal shell is arranged on one side of the auxiliary impeller shell, which is far away from the medium inlet;
the sealing component is arranged between the auxiliary impeller shell and the pump shaft and comprises a floating ring sealing component, a packing sealing component and a labyrinth sealing component;
the floating ring sealing component comprises a floating ring, a floating ring sealing ring, a spring and a spring seat; the floating ring comprises an annular part and a cylindrical part which are fixedly connected, and an inner cavity step of the floating ring is formed by the contact area of the annular part and the cylindrical part; the cylindrical part of the floating ring is provided with a conical structure, and the outer diameter of one end of the cylindrical part far away from the annular part is the largest;
a labyrinth sealing component is arranged between the annular part and the auxiliary impeller; a packing sealing component is arranged between the cylindrical part and the auxiliary impeller shell;
the floating ring is sleeved on the periphery of the pump shaft, the spring seat is arranged on the pump shaft through a set screw, the right end of the spring is in contact with the spring seat, and the left end of the spring is fixedly connected with an inner cavity step of the floating ring; the floating ring sealing ring is arranged between the inner ring of the annular part of the floating ring and the pump shaft;
the monitoring component includes a leak monitoring assembly and a wear monitoring assembly; the leakage monitoring assembly is arranged on the inner ring of the sealing shell and comprises a first signal wire, an alarm, a gasket force sensor and a gasket, wherein the gasket is arranged in a groove of the inner ring of the sealing shell and can expand after absorbing liquid, and the gasket is axially positioned by a flange plate arranged in the sealing shell; the gasket force sensor is mounted between the gasket and the seal housing; the flange plate is provided with a through hole, and the through hole is used for the first passage of a signal wire; the signal wires are connected with the gasket force sensor at one end and the alarm at the other end;
the wear monitoring assembly comprises a second signal wire, an alarm and a spring force sensor, wherein the spring force sensor is arranged between a spring seat and the end part of the spring, which is close to the spring seat, and is extruded by the spring; and one end of the second signal wire is connected with the spring force sensor, and the other end of the second signal wire is connected with the alarm.
Preferably, a plurality of staggered bosses are fixedly arranged on the annular part of the floating ring close to the end face of the auxiliary impeller; a plurality of grooves are formed in the positions, corresponding to the bosses of the floating ring, of the auxiliary impeller, and the bosses and the grooves are matched to form a labyrinth sealing component.
Preferably, the packing sealing component comprises a compression bolt, a compression cover and a packing sealing ring, and the packing sealing ring is arranged between the cylindrical part of the floating ring and the auxiliary impeller shell; the compression cover is arranged on the auxiliary impeller shell through a compression bolt and compresses the packing sealing ring.
Preferably, the packing sealing component further comprises a water seal ring, the water seal ring is arranged in the packing seal ring, and the auxiliary impeller shell is provided with a liquid injection port communicated with the water seal ring.
Preferably, the height of the groove in the longitudinal section of the labyrinth seal is three times the height of the boss.
Preferably, the taper structure in the longitudinal section of the cylindrical portion of the floating ring has an inclination angle of 2 ° to 3 °.
Preferably, the gasket force sensor and the spring force sensor are strain gauge type pressure sensors.
Preferably, the gasket is made of a water-absorbent resin.
Preferably, the spring force sensor is annular or cylindrical, and the end surface of the spring force sensor, which is far away from the spring seat, is fixedly connected with the end part of the spring; the spring seat is provided with a groove at the position corresponding to the spring force sensor, and the periphery of the spring force sensor is in sliding connection with the groove of the spring seat.
Compared with the prior art, the invention has the advantages and positive effects that:
(1) The sealing component in the slurry pump sealing leakage monitoring device comprises a floating ring sealing component, a packing sealing component and a labyrinth sealing component; the slurry leakage in the slurry pump is avoided through the combination of various sealing components, the corrosion phenomenon at the joint of the pump shaft and other components is reduced, and the service life of the slurry pump is prolonged;
(2) The monitoring component in the slurry pump sealing leakage monitoring device comprises a leakage monitoring component and a wear monitoring component; when the liquid leaks to the gasket, the gasket absorbs liquid to expand and presses the gasket force sensor, the gasket force sensor monitors the pressure, a signal is transmitted to the alarm through a signal wire I, and when the pressure value exceeds the rated value, the alarm gives out a leakage alarm; the spring force sensor monitors the pressure of the spring in real time, when the packing seal ring is worn, the floating ring moves leftwards, the pressure of the spring to the spring force sensor is reduced, a signal is transmitted to the alarm through the second signal wire, and the alarm gives out a wear alarm.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required in the description of the embodiments will be briefly described, and fig. 1 is a schematic diagram of a slurry pump seal leakage monitoring device and a slurry pump in cooperation;
FIG. 2 is a schematic diagram of the seal components and monitoring components in a slurry pump seal leakage monitoring device;
FIG. 3 is a schematic view of part A of a slurry pump seal leakage monitoring device;
FIG. 4 is a schematic view of part B of the slurry pump seal leakage monitoring device.
Reference numerals illustrate:
1-auxiliary impeller and 1.1-groove;
2-auxiliary impeller shell and 2.1-liquid injection port;
3-shell bolts, 4-sealed shells, 5-compression bolts and 6-compression covers;
7-signal line, 71-signal line one, 72-signal line two;
8-alarm, 9-screw, 10-gasket force sensor, 11-gasket, 12-flange, 13-set screw, 14-spring seat, 15-spring force sensor, 16-spring, 17-packing seal ring, 18-water seal ring and 19-floating ring seal ring;
20-floating ring, 20.1-boss and 20.2-conical structure;
21-medium inlet, 22-medium outlet, 23-impeller, 24-speed reducer and 25-pump shaft.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Example 1
The invention is further described below with reference to fig. 1-4, which illustrate a slurry pump seal leakage monitoring device, as shown in fig. 1, comprising a sealing member and a monitoring member; the slurry pump comprises an auxiliary impeller 1, a pump shaft 25, an auxiliary impeller shell 2 and a seal shell 4; the seal housing 4 is mounted on the side of the secondary impeller housing 2 remote from the medium inlet 21. The seal member is provided between the impeller casing 2 and the pump shaft 25, and includes a floating ring seal member, a packing seal member, and a labyrinth seal member.
As shown in fig. 2 and 3, the floating ring sealing member includes a floating ring 20, a floating ring seal 19, a spring 16, and a spring seat 14; the floating ring 20 comprises an annular part and a cylindrical part which are fixedly connected, and the contact area of the annular part and the cylindrical part forms an inner cavity step of the floating ring 20; the cylindrical portion of the floating ring 20 carries the conical formation 20.2 and the outer diameter of the end of the cylindrical portion remote from the annular portion is greatest.
As shown in fig. 2 and 3, a labyrinth seal is provided between the annular portion and the secondary impeller 1; a packing seal member is provided between the cylindrical portion and the impeller casing 2.
As shown in fig. 1 and 2, the floating ring 20 is sleeved on the periphery of the pump shaft 25, the spring seat 14 is installed on the pump shaft 25 through the set screw 13, the right end of the spring 16 is contacted with the spring seat 14, and the left end of the spring 16 is fixedly connected with the step of the inner cavity of the floating ring 20; a floating ring sealing ring 19 is arranged between the inner ring of the annular part of the floating ring 20 and the pump shaft 25.
As shown in fig. 2 and 4, the monitoring components include a leak monitoring assembly and a wear monitoring assembly; the leakage monitoring assembly is arranged on the inner ring of the sealing shell 4 and comprises a first signal wire 71, an alarm 8, a gasket force sensor 10 and a gasket 11, wherein the gasket 11 is arranged in a groove of the inner ring of the sealing shell 4 and can expand after absorbing liquid, and the gasket 11 is axially positioned by a flange plate 12 arranged in the sealing shell 4; a gasket force sensor 10 is mounted between the gasket 11 and the seal housing 4; the flange plate 12 is provided with a through hole which is used for the first signal line 71 to pass through; one end of the first signal line 71 is connected with the gasket force sensor 10, and the other end is connected with the alarm 8.
As shown in fig. 2 and 4, the wear monitoring assembly includes a second signal line 72, an alarm 8, and a spring force sensor 15, the spring force sensor 15 being mounted between the spring seat 14 and the end of the spring 16 adjacent to the spring seat 14 and being compressed by the spring 16; one end of the second signal wire 72 is connected with the spring force sensor 15, and the other end is connected with the alarm 8.
As shown in fig. 2 and 3, a plurality of staggered bosses 20.1 are fixedly arranged on the annular part of the floating ring 20 close to the end face of the auxiliary impeller 1; a plurality of grooves 1.1 are formed in the positions, corresponding to the bosses 20.1, of the floating ring 20, of the auxiliary impeller 1, and the bosses 20.1 and the grooves 1.1 are matched to form a labyrinth sealing part together.
As shown in fig. 2, the packing sealing member includes a packing bolt 5, a packing cover 6, and a packing seal 17, and the packing seal 17 is installed between the cylindrical portion of the floating ring 20 and the impeller housing 2; the compression cover 6 is mounted on the impeller housing 2 by the compression bolt 5 and compresses the packing seal 17.
As shown in fig. 2 and 3, the packing element further comprises a water seal ring 18, the water seal ring 18 is arranged in the packing ring 17, and the auxiliary impeller shell 2 is provided with a liquid injection port 2.1 leading to the water seal ring 18.
As shown in fig. 3, the height of the groove 1.1 in the longitudinal section of the labyrinth seal is three times the height of the boss 20.1.
The conical structure 20.2 in the longitudinal section of the cylindrical portion of the floating ring 20 has an inclination angle of 2 °.
The gasket force sensor 10 and the spring force sensor 15 are strain gauge type pressure sensors.
The gasket 11 is made of a water-absorbent resin.
As shown in fig. 2, the spring force sensor 15 is annular or cylindrical, and the end surface of the spring force sensor 15 far away from the spring seat 14 is fixedly connected with the end of the spring 16; grooves are formed in the positions, corresponding to the spring seats 14 and the spring force sensors 15, of the spring force sensors 15, and the peripheries of the spring force sensors 15 are connected with the grooves of the spring seats 14 in a sliding mode.
Example 2
The difference between this embodiment and embodiment 1 is that: the taper structure 20.2 in the longitudinal section of the cylindrical portion of the floating ring 20 has an inclination angle of 3 DEG
The invention relates to a working principle of a slurry pump sealing leakage monitoring device, which comprises the following steps: the labyrinth sealing component formed by the boss 20.1 and the groove 1.1 and the floating ring sealing ring 19 prevent the liquid passing through the auxiliary impeller 1 from further leakage; the position of the floating ring 20 is regulated by the spring 16, and the packing sealing ring 17 is pressed by the conical structure 20.2 of the cylindrical part and the pressing cover 6, so that the liquid passing through the auxiliary impeller 1 is prevented from further leakage; when the liquid leaks to the gasket 11, the gasket 11 absorbs liquid to expand and presses the gasket force sensor 10, the gasket force sensor 10 monitors the pressure, a signal is transmitted to the alarm 8 through a signal line I71, and when the pressure value exceeds a rated value, the alarm 8 gives out a leakage alarm; the spring force sensor 15 monitors the pressure of the spring 16 in real time, when the packing seal ring 17 is worn, the floating ring 20 moves leftwards, the pressure of the spring 16 to the spring force sensor 15 is reduced, a signal is transmitted to the alarm 8 through the second signal line 72, and the alarm 8 gives out a wear alarm.
The present invention is not limited to the above embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (9)
1. A slurry pump seal leakage monitoring device comprises a sealing component and a monitoring component; the slurry pump comprises an auxiliary impeller (1), a pump shaft (25), an auxiliary impeller shell (2) and a sealing shell (4); the seal shell (4) is arranged at one side of the auxiliary impeller shell (2) far away from the medium inlet (21); the method is characterized in that:
the sealing component is arranged between the auxiliary impeller shell (2) and the pump shaft (25), and comprises a floating ring sealing component, a packing sealing component and a labyrinth sealing component;
the floating ring sealing component comprises a floating ring (20), a floating ring sealing ring (19), a spring (16) and a spring seat (14); the floating ring (20) comprises an annular part and a cylindrical part which are fixedly connected, and an inner cavity step of the floating ring (20) is formed by the contact area of the annular part and the cylindrical part; the cylindrical part of the floating ring (20) is provided with a conical structure (20.2), and the outer diameter of one end of the cylindrical part far away from the annular part is the largest;
a labyrinth sealing component is arranged between the annular part and the auxiliary impeller (1); a packing sealing component is arranged between the cylindrical part and the auxiliary impeller shell (2);
the floating ring (20) is sleeved on the periphery of the pump shaft (25), the spring seat (14) is mounted on the pump shaft (25) through a set screw (13), the right end of the spring (16) is in contact with the spring seat (14), and the left end of the spring (16) is fixedly connected with an inner cavity step of the floating ring (20); the floating ring sealing ring (19) is arranged between the inner ring of the annular part of the floating ring (20) and the pump shaft (25);
the monitoring component includes a leak monitoring assembly and a wear monitoring assembly; the leakage monitoring assembly is arranged on the inner ring of the sealing shell (4) and comprises a first signal wire (71), an alarm (8), a gasket force sensor (10) and a gasket (11), wherein the gasket (11) is arranged in a groove of the inner ring of the sealing shell (4) and can expand after absorbing liquid, and the gasket (11) is axially positioned by a flange plate (12) arranged in the sealing shell (4); the gasket force sensor (10) is arranged between the gasket (11) and the sealing shell (4); the flange plate (12) is provided with a through hole, and the through hole is used for a first signal wire (71) to pass through; one end of the first signal wire (71) is connected with the gasket force sensor (10), and the other end of the first signal wire is connected with the alarm (8);
the wear monitoring assembly comprises a second signal wire (72), an alarm (8) and a spring force sensor (15), wherein the spring force sensor (15) is arranged between a spring seat (14) and the end part of a spring (16) close to the spring seat (14) and is extruded by the spring (16); one end of the second signal wire (72) is connected with the spring force sensor (15), and the other end of the second signal wire is connected with the alarm (8).
2. The slurry pump seal leakage monitoring device according to claim 1, wherein: the annular part of the floating ring (20) is close to the end face of the auxiliary impeller (1) and is fixedly provided with a plurality of staggered bosses (20.1); a plurality of grooves (1.1) are formed in positions, corresponding to the bosses (20.1) of the floating ring (20), of the auxiliary impeller (1), and the bosses (20.1) and the grooves (1.1) are matched to form a labyrinth sealing component together.
3. The slurry pump seal leakage monitoring device according to claim 1 or 2, characterized in that: the packing sealing component comprises a compression bolt (5), a compression cover (6) and a packing sealing ring (17), and the packing sealing ring (17) is arranged between the cylindrical part of the floating ring (20) and the auxiliary impeller shell (2); the compression cover (6) is arranged on the auxiliary impeller shell (2) through the compression bolt (5) and compresses the packing sealing ring (17).
4. A slurry pump seal leakage monitoring device according to claim 3, wherein: the packing sealing component further comprises a water seal ring (18), the water seal ring (18) is arranged in the packing seal ring (17), and the auxiliary impeller shell (2) is provided with a liquid injection port (2.1) leading to the water seal ring (18).
5. The slurry pump seal leakage monitoring device according to claim 2, wherein: the height of the groove (1.1) in the longitudinal section of the labyrinth seal is three times the height of the boss (20.1).
6. The slurry pump seal leakage monitoring device according to claim 1, wherein: the angle of inclination of the conical structure (20.2) in the longitudinal section of the cylindrical part of the floating ring (20) is 2-3 degrees.
7. The slurry pump seal leakage monitoring device according to claim 1, wherein: the gasket force sensor (10) and the spring force sensor (15) are strain gauge type pressure sensors.
8. The slurry pump seal leakage monitoring device according to claim 1, wherein: the gasket (11) is made of water-absorbing resin.
9. The slurry pump seal leakage monitoring device according to claim 7, wherein: the spring force sensor (15) is annular or cylindrical, and the end surface of the spring force sensor (15) far away from the spring seat (14) is fixedly connected with the end part of the spring (16); the spring seat (14) is provided with a groove at a position corresponding to the spring force sensor (15), and the periphery of the spring force sensor (15) is in sliding connection with the groove of the spring seat (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210563321.7A CN114837955B (en) | 2022-05-23 | 2022-05-23 | Slurry pump sealing leakage monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210563321.7A CN114837955B (en) | 2022-05-23 | 2022-05-23 | Slurry pump sealing leakage monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114837955A CN114837955A (en) | 2022-08-02 |
| CN114837955B true CN114837955B (en) | 2023-12-05 |
Family
ID=82572767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210563321.7A Active CN114837955B (en) | 2022-05-23 | 2022-05-23 | Slurry pump sealing leakage monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837955B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245134A (en) * | 2003-02-14 | 2004-09-02 | Furukawa Co Ltd | Shaft seal structure of pump |
| EP1705380A1 (en) * | 2006-03-30 | 2006-09-27 | Aktiebolaget SKF | A slurry pump |
| CN102135019A (en) * | 2010-01-22 | 2011-07-27 | 通用电气公司 | Method and apparatus for labyrinth seal packing rings |
| CN103104542A (en) * | 2013-01-20 | 2013-05-15 | 锦州重型水泵有限公司 | Water pump floating sealing ring device |
| CN106246921A (en) * | 2015-05-22 | 2016-12-21 | 斯凯孚公司 | For relative to the sealing device of chamber between liquid medium seal casinghousing and component |
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
| CN206439223U (en) * | 2016-12-30 | 2017-08-25 | 石家庄凯泉杂质泵有限公司 | A kind of Pulp pump gland seal device |
| CN206801930U (en) * | 2017-06-05 | 2017-12-26 | 沈阳北碳密封有限公司 | Leakage alarm sealing device |
| CN108167220A (en) * | 2017-12-23 | 2018-06-15 | 广州市白云泵业集团有限公司 | Has the active sealing structure of leak detection |
| CN212079728U (en) * | 2020-04-14 | 2020-12-04 | 江门市新会区龙泉污水处理有限公司 | Mechanical seal structure of slurry pump |
| WO2021064533A1 (en) * | 2019-10-04 | 2021-04-08 | Weir Minerals Europe Limited | Shaft seal assembly for a centrifugal pump |
| CN114483597A (en) * | 2022-01-29 | 2022-05-13 | 靖江市亚太泵业有限公司 | Sealing mechanism of hot water pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9835041B2 (en) * | 2014-10-31 | 2017-12-05 | Hamilton Sundstrand Corporation | Vane position sensor installation within a turbine case |
| JPWO2019021958A1 (en) * | 2017-07-26 | 2020-07-30 | 株式会社荏原製作所 | Pump and seal system |
-
2022
- 2022-05-23 CN CN202210563321.7A patent/CN114837955B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004245134A (en) * | 2003-02-14 | 2004-09-02 | Furukawa Co Ltd | Shaft seal structure of pump |
| EP1705380A1 (en) * | 2006-03-30 | 2006-09-27 | Aktiebolaget SKF | A slurry pump |
| CN102135019A (en) * | 2010-01-22 | 2011-07-27 | 通用电气公司 | Method and apparatus for labyrinth seal packing rings |
| CN103104542A (en) * | 2013-01-20 | 2013-05-15 | 锦州重型水泵有限公司 | Water pump floating sealing ring device |
| CN106246921A (en) * | 2015-05-22 | 2016-12-21 | 斯凯孚公司 | For relative to the sealing device of chamber between liquid medium seal casinghousing and component |
| CN206439223U (en) * | 2016-12-30 | 2017-08-25 | 石家庄凯泉杂质泵有限公司 | A kind of Pulp pump gland seal device |
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
| CN206801930U (en) * | 2017-06-05 | 2017-12-26 | 沈阳北碳密封有限公司 | Leakage alarm sealing device |
| CN108167220A (en) * | 2017-12-23 | 2018-06-15 | 广州市白云泵业集团有限公司 | Has the active sealing structure of leak detection |
| WO2021064533A1 (en) * | 2019-10-04 | 2021-04-08 | Weir Minerals Europe Limited | Shaft seal assembly for a centrifugal pump |
| CN212079728U (en) * | 2020-04-14 | 2020-12-04 | 江门市新会区龙泉污水处理有限公司 | Mechanical seal structure of slurry pump |
| CN114483597A (en) * | 2022-01-29 | 2022-05-13 | 靖江市亚太泵业有限公司 | Sealing mechanism of hot water pump |
Non-Patent Citations (2)
| Title |
|---|
| 一种考虑介质污染度的液压泵轴尾机械密封磨损的计算方法;马纪明;宋岳恒;黄怡鸿;;润滑与密封(第01期);第123-128页 * |
| 洗煤系统中渣浆泵轴封形式的选用;赵建云;;通用机械(第12期);第50-51页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114837955A (en) | 2022-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114837955B (en) | Slurry pump sealing leakage monitoring device | |
| CN208782611U (en) | A kind of submersible machine sealing device | |
| CN1810380A (en) | Feeding pipe and shaft united sealing unit for mill | |
| CN109737214B (en) | Pressure-sensitive valve seat capable of detecting specific pressure of sealing surface on line and complete intelligent valve thereof | |
| CN217152989U (en) | Magnetic liquid sealing device for coal chemical reactor | |
| CN212509524U (en) | Mechanical sealing device suitable for variable working condition upstream pumping | |
| CN206608545U (en) | One kind can limit pretightning force and easy-disassembling-assembling packing seal structure | |
| CN209705371U (en) | A kind of high-pressure ball valve with redundancy packing seal structure | |
| CN202266767U (en) | Reversely spherical rotary joint | |
| CN207178723U (en) | A kind of floating type hard sealing structure in metal valve | |
| CN112253535A (en) | High-temperature screw asphalt pump mechanical sealing element | |
| CN220583698U (en) | Hydraulic test tool for narrow sealing surface booster shell | |
| CN112803663B (en) | Explosion-proof heavy vibration motor | |
| CN217176955U (en) | Composite sealing structure for shaft end of fan | |
| CN219801855U (en) | Double sealing device for cable of pump submersible motor in mute pipe | |
| CN217107535U (en) | Magnetic liquid sealing device for centrifugal pump | |
| CN216279245U (en) | High-sealing combined oil seal of ball screw pair | |
| CN209762247U (en) | Novel metal bellows mechanical seal device | |
| CN217355690U (en) | Multiple sealing leakage-proof high-temperature high-pressure check valve | |
| CN218267221U (en) | Solid material radial sealing device | |
| CN212718354U (en) | Soft sealing gate valve | |
| CN220748700U (en) | Oil return filter installation device, hydraulic oil tank and engineering machinery | |
| CN216342781U (en) | Displacement pump with temperature sensing probe | |
| CN216666027U (en) | Slurry pump sealing structure | |
| CN219639073U (en) | Leakage-free mortar pump |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |