CN205638968U - Centrifugal pump is moulded to lining of can dry grinding - Google Patents
Centrifugal pump is moulded to lining of can dry grinding Download PDFInfo
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- CN205638968U CN205638968U CN201620523907.0U CN201620523907U CN205638968U CN 205638968 U CN205638968 U CN 205638968U CN 201620523907 U CN201620523907 U CN 201620523907U CN 205638968 U CN205638968 U CN 205638968U
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- pump
- impeller
- lining
- ring
- centrifugal pump
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Abstract
The utility model discloses a centrifugal pump is moulded to lining of can dry grinding, including the pump body, center support, bearing box and the motor that sets gradually backward in the past, the rear end of the pump body is equipped with the pump cover, be equipped with the impeller in the inner chamber of the pump body, be equipped with the impeller shaft in center support's the inner chamber, the front end of impeller shaft passes pump cover and impeller connection, the mechanical seal who establishes outside the impeller shaft through the cover between impeller shaft and the pump cover realizes sealed cooperation, mechanical seal includes rotating ring and quiet ring, rotating ring and quiet ring all adopt pressureless sintering carborundum material to make to the mill flour. The utility model discloses under the high -speed running situation of disconnected liquid, the heat that produces the mill flour of rotating ring and quiet ring is little to avoid damaging mechanical seal and lining and mould the centrifugal pump, solved the lining and moulded the centrifugal pump high -speed operation problem of liquid of can not breaking, improved the life that the centrifugal pump was moulded to the lining, extended the application that the centrifugal pump was moulded to the lining.
Description
Technical field
This utility model relates to plastic-lining centrifugal pump field, relates in particular to one and can dry grind plastic-lining centrifugal pump.
Background technology
Centrifugal pump is to utilize impeller to rotate and make water generation centrifugal motion carry out the pump of work.When centrifugal pump is used for transporting strong acid, strong
During the corrosive fluid medium such as alkali, it is necessary to carry out anticorrosive measure, at present, the mode generally used has the stream excessively at centrifugal pump
Bread covers corrosion-resistant plastic, namely plastic-lining centrifugal pump.
Plastic-lining centrifugal pump, in addition to liner corrosion-resistant plastic, in addition it is also necessary to carries out seal approach between corresponding component, serves as a contrast at present
Mould centrifugal pump conventional be that machine is sealed envelope, it include the material to flour milling of stationary ring and rotating ring, stationary ring and rotating ring be generally alloy,
Graphite.The operation process of pump exists the situation that disconnected liquid evacuates, and stationary ring and rotating ring to flour milling once disconnected liquid, pump high-speed rotary
Turning, the dry grinding flour milling of above-mentioned material produces heat, may result in pump cover and damages, and pump damages, and causes security incident.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of liquid that breaks run up, the dry grinded lining of high life
Mould centrifugal pump.
In order to solve above-mentioned technical problem, this utility model adopts the following technical scheme that plastic-lining centrifugal pump of can dry grinding, including from
The pump housing, intermediate support, bearing housing and the motor set gradually after forward direction, the rear end of the described pump housing is provided with pump cover, described centre
The front end of support is connected on the pump housing and pump cover, and the rear end of described intermediate support is connected on bearing housing, the inner chamber of the described pump housing
In be provided with impeller, the inner chamber of described intermediate support is provided with impeller axle, the front end of described impeller axle is connected with impeller through pump cover,
Being provided with pump shaft in the inner chamber of described bearing housing, the front end of described pump shaft is connected with the rear end of impeller axle, and the rear end of described pump shaft is stretched
Going out bearing housing and be connected with the output shaft of motor by shaft coupling, the flow-passing surface of the described pump housing, impeller and impeller axle is coated with resistance to
Corrosion plastic layer, between described impeller axle and pump cover, the mechanical seal realization sealing by being set in outside impeller axle coordinates, described
Mechanical seal includes that the pressureless sintering carbofrax material that all uses flour milling of rotating ring and stationary ring, described rotating ring and stationary ring is made.
Further, also include the machine sealed cover being fixed on pump cover rear end, described stationary ring be fixed on pump cover and machine sealed cover it
Between, described rotating ring is positioned at the rear side of stationary ring.
Further, described mechanical seal is that WB2 type machine is sealed envelope.
Further, being provided with sealing ring between described impeller axle and rotating ring, described sealing ring uses Polyfluoroether material to make.
Further, the inwall of described rotating ring is provided with the annular groove for sealing ring of stepping down.
The beneficial effects of the utility model are:
This utility model is in the case of disconnected liquid runs up, and the heat producing flour milling of rotating ring and stationary ring is little, thus avoids
Damage mechanical seal and plastic-lining centrifugal pump, solve the plastic-lining centrifugal pump liquid that can not break and run up problem, improve lining mould from
In the service life of heart pump, expand the application of plastic-lining centrifugal pump.
Through experimental verification, this utility model can in the case of complete hydropenia dry friction dry run more than 30 minutes, and
And after water flowing, do not reveal, and abradant surface the most substantially damages, thus thoroughly solve the pump damage that dehydrating operation causes
Bad, the service life of mechanical seal significantly improves, thus significantly drops ground maintenance cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of mechanical seal in this utility model.
Fig. 3 is dry grinding time-temperature figure of the present utility model.
Being labeled as of each parts in accompanying drawing: 1 pump housing, 2 intermediate supports, 3 bearing housings, 4 motors, 5 pump covers, 6 impellers, 7
Impeller axle, 8 pump shafts, 9 shaft couplings, 101 rotating rings, 1011 annular grooves, 102 stationary rings, 103 sealing rings, 104 fix
Ring, 11 machine sealed covers, 12 base plates.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described:
See Fig. 1.
This utility model can be dry grinded plastic-lining centrifugal pump, including the pump housing 1 being successively set on from front to back on base plate 12, middle
Frame 2, bearing housing 3 and motor 4, the rear end of the described pump housing 1 is provided with pump cover 5, and the front end of described intermediate support 2 is connected to pump
On body 1 and pump cover 5, the rear end of described intermediate support 2 is connected on bearing housing 3, is provided with leaf in the inner chamber of the described pump housing 1
Wheel 6, is provided with impeller axle 7 in the inner chamber of described intermediate support 2, the front end of described impeller axle 7 is through pump cover 5 and impeller 6
Connecting, be provided with pump shaft 8 in the inner chamber of described bearing housing 3, the front end of described pump shaft 8 is connected with the rear end of impeller axle 7, institute
The rear end stating pump shaft 8 is stretched out bearing housing 3 and is connected with the output shaft of motor 4 by shaft coupling 9, the described pump housing 1, impeller
6 and the flow-passing surface of impeller axle 7 be coated with corrosion-resistant plastic layer, by being set in impeller between described impeller axle 7 and pump cover 5
Mechanical seal outside axle 7 realizes sealing and coordinates, and described mechanical seal includes rotating ring 101 and stationary ring 102, described rotating ring 101
Make with the pressureless sintering carbofrax material that flour milling is all used of stationary ring 102.
This utility model use pressureless sintering carbofrax material make rotating ring 101 and stationary ring 102 to flour milling, pressureless sintering carbon
Silicon nitride material is almost the finest and close, has excellent mechanical property, corrosion-resistant, wear-resistant, in the case of disconnected liquid runs up,
The heat producing flour milling of rotating ring 101 and stationary ring 102 is little, thus avoids damaging mechanical seal and plastic-lining centrifugal pump,
Solve the plastic-lining centrifugal pump liquid that can not break to run up problem, expand the application of plastic-lining centrifugal pump.
See Fig. 3, through experimental verification, this utility model can in the case of complete hydropenia dry friction dry run 30 minutes
Above, and after water flowing, do not reveal, and abradant surface the most substantially damages, thus thoroughly solve dehydrating operation and lead
The pump caused damages, and significantly improves the service life of mechanical seal, thus significantly drops ground maintenance cost.
In an embodiment of the present utility model, also include the machine sealed cover 11 being fixed on pump cover 5 rear end, described stationary ring 102
Being fixed between pump cover 5 and machine sealed cover 11, described rotating ring 101 is positioned at the rear side of stationary ring 102.Stationary ring 102 uses
Aforesaid way is fixed, more firm, stable, thus ensures sealing effectiveness, maintains the long-time safe operation of pump.
In being embodied as, described mechanical seal is MF type mechanical seal or WB2 type machine is sealed envelope.
See Fig. 2, in an embodiment of the present utility model, between described impeller axle 7 and rotating ring 101, be provided with sealing ring 103,
Described sealing ring 103 uses Polyfluoroether material to make.Illustrate in figure is MF type mechanical seal, moving of MF type mechanical seal
Ring is generally fixed in axle class by retainer ring 104.Seal approach is not had between rotating ring and the axle of existing MF type mechanical seal,
And this utility model does above-mentioned improvement, one sealing can be increased, it is ensured that sealing effectiveness.
Specifically, the inwall at rotating ring 101 is provided for stepping down the annular groove 1011 of sealing ring 103.It thus is avoided that at leaf
On wheel shaft 7, fluting installs sealing ring 103, thus does not interferes with processing and the use of impeller axle.
Be to be understood that example as herein described and embodiment only for explanation, those skilled in the art can make various according to it
Amendment or change, in the case of without departing from this utility model spirit, broadly fall into protection domain of the present utility model.
Claims (5)
1. can dry grind plastic-lining centrifugal pump, it is characterised in that: the pump housing (1) that includes setting gradually from front to back, intermediate support (2),
Bearing housing (3) and motor (4), the rear end of the described pump housing (1) is provided with pump cover (5), before described intermediate support (2)
End is connected on the pump housing (1) and pump cover (5), and the rear end of described intermediate support (2) is connected on bearing housing (3), institute
State and the inner chamber of the pump housing (1) is provided with impeller (6), the inner chamber of described intermediate support (2) is provided with impeller axle (7), described
The front end of impeller axle (7) is connected through pump cover (5) with impeller (6), is provided with pump shaft in the inner chamber of described bearing housing (3)
(8), the front end of described pump shaft (8) is connected with the rear end of impeller axle (7), and bearing is stretched out in the rear end of described pump shaft (8)
Case (3) is also connected with the output shaft of motor (4) by shaft coupling (9), the described pump housing (1), impeller (6) and impeller
The flow-passing surface of axle (7) is coated with corrosion-resistant plastic layer, by being set in leaf between described impeller axle (7) and pump cover (5)
Wheel shaft (7) mechanical seal outward realizes sealing and coordinates, and described mechanical seal includes rotating ring (101) and stationary ring (102), institute
The pressureless sintering carbofrax material that all uses flour milling stating rotating ring (101) and stationary ring (102) is made.
Can dry grind the most as claimed in claim 1 plastic-lining centrifugal pump, it is characterised in that: after also including being fixed on pump cover (5)
The machine sealed cover (11) of end, described stationary ring (102) is fixed between pump cover (5) and machine sealed cover (11), described
Rotating ring (101) is positioned at the rear side of stationary ring (102).
Can dry grind the most as claimed in claim 1 or 2 plastic-lining centrifugal pump, it is characterised in that: described mechanical seal is MF type
Mechanical seal or WB2 type machine are sealed envelope.
Can dry grind the most as claimed in claim 1 or 2 plastic-lining centrifugal pump, it is characterised in that: described impeller axle (7) and dynamic
Being provided with sealing ring (103) between ring (101), described sealing ring (103) uses Polyfluoroether material to make.
Can dry grind the most as claimed in claim 1 or 2 plastic-lining centrifugal pump, it is characterised in that: described rotating ring (101) interior
Wall is provided with the annular groove (1011) for sealing ring of stepping down (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523907.0U CN205638968U (en) | 2016-05-27 | 2016-05-27 | Centrifugal pump is moulded to lining of can dry grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523907.0U CN205638968U (en) | 2016-05-27 | 2016-05-27 | Centrifugal pump is moulded to lining of can dry grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638968U true CN205638968U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523907.0U Active CN205638968U (en) | 2016-05-27 | 2016-05-27 | Centrifugal pump is moulded to lining of can dry grinding |
Country Status (1)
| Country | Link |
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| CN (1) | CN205638968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194366A (en) * | 2017-12-21 | 2018-06-22 | 江苏双轮泵业机械制造有限公司 | A kind of anti-dry grinding centrifugal pump |
-
2016
- 2016-05-27 CN CN201620523907.0U patent/CN205638968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194366A (en) * | 2017-12-21 | 2018-06-22 | 江苏双轮泵业机械制造有限公司 | A kind of anti-dry grinding centrifugal pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |