CN207080368U - The chemical flow-process pump of high-cavitation-resistance energy - Google Patents
The chemical flow-process pump of high-cavitation-resistance energy Download PDFInfo
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- CN207080368U CN207080368U CN201720991893.XU CN201720991893U CN207080368U CN 207080368 U CN207080368 U CN 207080368U CN 201720991893 U CN201720991893 U CN 201720991893U CN 207080368 U CN207080368 U CN 207080368U
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- Prior art keywords
- cavitation
- pump
- chemical flow
- radiating ribs
- bearing
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Abstract
The utility model discloses high-cavitation-resistance can chemical flow-process pump, including rotor assembly and the pump housing that is connected on rotor assembly；Described rotor assembly includes bearing box assembly, and the pump cover and impeller being connected on bearing box assembly；Described bearing box assembly includes bearing housing；The sealing ring that the choma being provided with the described pump housing on the front shroud with impeller coordinates；Radiating ribs structure is evenly equipped with described bearing box outer wall, is internally provided with several grooves；Sealing ring is provided with, improves the anti-cavitation performance of chemical flow-process pump, is provided with radiating ribs structure and groove, cooling is carried out to bearing, the stability of the chemical flow-process pump of high-cavitation-resistance energy is improved, reduces vibration, noise etc..
Description
Technical field
Pump technical field is the utility model is related to, in particular to a kind of chemical flow-process pump of high-cavitation-resistance energy.
Background technology
Centrifugal pump, it is a kind of increasing the pressure of liquid or gas, makes liquid or the machinery of gas transport flow, it is wide
General use is in various fields；Traditional centrifugal pump is usually present the problem of cavitation and bearing heating；The operation principle of centrifugal pump
It is to be rotated by impeller, the medium in impeller central formation negative pressuren zone, inlet pipeline, by the relatively high pressure in inlet pipeline
Area conveys to impeller central negative pressuren zone, then the effect by impeller blade, medium is extruded by pump housing outlet, the pressure at impeller outlet
Power is larger with respect to the pressure at impeller inlet, forms pressure differential, therefore most of medium can all be discharged by outlet conduit, also be had
Fraction medium can be back in the gap of front shroud of impeller and the pump housing, then is back at suction eye；Traditional method exists
Casing ring is set up at sealing ring before centrifugal pump body and impeller, the protection pump housing is served and stops the effect of backflow, the pump housing
Sealing ring typically uses structure of the cross section for " one " font or " L " font, when the two structures actually use, casing ring
Formation gap between sealing ring before impeller, the backflow direction of medium are impacted in certain degree radially to flow back, disturbed
Pumped (conveying) medium normal flow direction in front end position at suction eye, so as to reduce the necessary net positive suction head of centrifugal pump,
So that the medium at suction eye is easy to prematurely enter vapor state, so as to cause centrifugal pump to run well, its
Although the pump housing and impeller of secondary centrifugal pump have considered the necessary net positive suction head of pump in the Hydraulic Design, but actually using
Often the device net positive suction head of some field working conditions and technological requirement requires higher in journey, flow and lift institute according to its requirement
The necessary net positive suction head for the corresponding pump-type selected is difficult the device net positive suction head for meeting field working conditions and technological requirement, and at present
The pump housing entrance point position of in the market is not provided with water fender, and centrifugal pump is in operation process because the blade of impeller is continuous
Rotation, causes the liquid at pump housing entrance point position to produce high speed whirlpool with the rotation of impeller, water fender causes pumped (conveying) medium not
Suction eye can swimmingly be entered, inflow velocity of the pumped (conveying) medium at suction eye has been had a strong impact on, greatly reduced
The necessary net positive suction head of centrifugal pump, causes the centrifugal pump vapour to occur because net positive suction head can not meet requirement in actual use
Lose phenomenon so that situations such as vibration, noise occurs in centrifugal pump, can cause bearing heating, temperature exceeding standard, centrifugal pump goes out when serious
Mouth rapid pressure drop, bearing are burnt out, and cause centrifugal pump to be not normally functioning so that the entire production line stops production.
The content of the invention
The utility model purpose is to provide a kind of chemical flow-process pump of high-cavitation-resistance energy, solves above technical problem.
In order to realize above-mentioned technical purpose, reach above-mentioned technical requirements, technical scheme is used by the utility model：
High-cavitation-resistance can chemical flow-process pump, including rotor assembly and the pump housing that is connected on rotor assembly；Described rotor assembly
Including bearing box assembly, and the pump cover and impeller being connected on bearing box assembly；Described bearing box assembly includes bearing housing；
It is characterized in that：The sealing ring that the choma being provided with the described pump housing on the front shroud with impeller coordinates；Outside described bearing housing
Radiating ribs structure is evenly equipped with wall, is internally provided with several grooves.
As preferable technical scheme：Described bearing box assembly also includes the pump being connected to by bearing in bearing housing
Axle.
As preferable technical scheme：The gland for positioning bearing is also symmetrically arranged with described bearing housing.
As preferable technical scheme：Described sealing ring includes the ring body coordinated with the pump housing；Set in described ring body
There is projection.
As preferable technical scheme：Described projection from extending to end at the vane inlet on impeller at ring body, with
The front shroud of impeller protrudes above forms gap between the part at vane inlet outside end.
As preferable technical scheme：The distance between described projection end and the junction end of blade and front shroud
Size A is 1mm.
As preferable technical scheme：Described radiating ribs structure is by several vertical bar radiating ribs and hook-type radiating ribs group
Into；Hook block in described hook-type radiating ribs is protruded outside vertical bar radiating ribs.
As preferable technical scheme：Stagger between described vertical bar radiating ribs and hook-type radiating ribs, be evenly distributed on axle
Hold on box outer wall.
As preferable technical scheme：Oil circuit is formed between cavity, bearing and gland in described groove and bearing housing.
The beneficial effects of the utility model are：The chemical flow-process pump of high-cavitation-resistance energy, compared with traditional structure：It is provided with
Sealing ring, the anti-cavitation performance of chemical flow-process pump is improved, be provided with radiating ribs structure and groove, bearing radiate cold
But, the stability of the chemical flow-process pump of high-cavitation-resistance energy is improved, reduces vibration, noise etc..
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model Fig. 1 B to partial enlarged view；
Fig. 3 is the utility model Fig. 2 C to partial enlarged view；
In figure：1. the pump housing, 2. pump covers, 3. impellers, 4. bearing housings, 5. sealing rings, 6. radiating ribs structures, 7. grooves, 8.
Bearing, 9. pump shafts, 10. glands, 101. chomas, 301. front shrouds, 302. blades, 303. gaps, 5-1. ring bodies, 5-2. projections,
6-1. vertical bars radiating ribs, 6-2. hook-types radiating ribs, 6-3. hook blocks, 7-1. oil circuits.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings；
In the accompanying drawings：High-cavitation-resistance can chemical flow-process pump, including rotor assembly and the pump that is connected on rotor assembly
Body 1；Described rotor assembly includes bearing box assembly, and the pump cover 2 and impeller 3 being connected on bearing box assembly；Described
Bearing box assembly includes bearing housing 4；It is provided with what is coordinated with the choma 101 on the front shroud of impeller 3 301 on the described pump housing 1
Sealing ring 5；Radiating ribs structure 6 is evenly equipped with the described outer wall of bearing housing 4, is internally provided with several grooves 7；Described bearing
Box assembly also includes the pump shaft 9 being connected to by bearing 8 in bearing housing 4；Also it is symmetrically arranged with described bearing housing 4 for fixed
The gland 10 of position bearing 8；During actual use, by being formed between sealing ring 5 and choma 101 and front shroud 301 and gap 303
The space communicated, control the direction of reflux medium so that reflux medium is directly entered blade 302, improves at the suction inlet of impeller 3
Pressure, improve high-cavitation-resistance energy, air cooling carried out by radiating ribs structure 6, take away the heat of bearing housing 4, described is logical
Groove 7 make it that lubricating oil in the presence of disc 102, is thrown away in cavity 4-1, due to there is the oil circuit 7-1 communicated, is easy to band
Amount of localized heat is walked, then coordinates radiating ribs structure 6, improves heat dispersion, bearing 8 is protected, extends service life.
In figure 3：Described sealing ring 5 includes the ring body 5-1 coordinated with the pump housing 1；It is provided with described ring body 5-1 convex
Block 5-2；Described projection 5-2 to the entrance end of blade 302 on impeller 3 from extending at ring body 5-1, the protecgulum with impeller 3
Plate 301 forms gap 303 between protruding above the part outside the entrance end of blade 302；Described projection 5-2 ends and leaf
The distance between the junction end of piece 302 and front shroud 301 size A is 1mm；By the change of structure, the control of distance, reach
To the purpose in the direction of control reflux medium so that reflux medium is directly entered blade 302, improves at the suction inlet of impeller 3
Pressure, improve high-cavitation-resistance energy.
In Fig. 1：Described radiating ribs structure 6 is made up of several vertical bar radiating ribs 6-1 and hook-type radiating ribs 6-2；Institute
Hook block 6-3 on the hook-type radiating ribs 6-2 stated is protruded outside vertical bar radiating ribs 6-1；Described vertical bar radiating ribs 6-1 and hook
Stagger between shape radiating ribs 6-2, be evenly distributed on the outer wall of bearing housing 4；Described vertical bar radiating ribs 6-1 and hook-type radiating ribs 6-
2, height is different, and shape is different, forms stepped radiating, ensure that the effect of radiating, uniform compared to the identical structure on motor
Radiator structure, hence it is evident that improve, because between mutually isostructural radiator structure, due to highly equal, stop, have impact on scattered mutually
Thermal effect.
In Fig. 1：Oil circuit 7-1 is formed between cavity 4-1, bearing 8 and gland 10 in described groove 7 and bearing housing 4；
Described oil circuit 7-1 is advantageous to lubricating oil and flowed to, and takes away amount of localized heat, avoids the too high situation of local temperature and occurs.
Above-described embodiment is only intended to clearly illustrate the description that the utility model is made, and not to the limit of embodiment
It is fixed, to those of ordinary skill in the art, other various forms of changes can also be made on the basis of the above description
Or change, there is no necessity and possibility to exhaust all the enbodiments, and the obvious change thus amplified out
Or among changing still in the scope of protection of the utility model.
Claims (9)
1. high-cavitation-resistance can chemical flow-process pump, including rotor assembly and the pump housing that is connected on rotor assembly（1）；Described
Rotor assembly includes bearing box assembly, and the pump cover being connected on bearing box assembly（2）And impeller（3）；Described bearing housing
Component includes bearing housing（4）；It is characterized in that：The described pump housing（1）On be provided with and impeller（3）Front shroud（301）On mouth
Ring（101）The sealing ring of cooperation（5）；Described bearing housing（4）Radiating ribs structure is evenly equipped with outer wall（6）If it is internally provided with
Dry groove（7）.
2. the chemical flow-process pump of high-cavitation-resistance energy according to claim 1, it is characterized in that：Described bearing box assembly is also
Including passing through bearing（8）It is connected to bearing housing（4）Interior pump shaft（9）.
3. the chemical flow-process pump of high-cavitation-resistance energy according to claim 1, it is characterized in that：Described bearing housing（4）On
Also it is symmetrically arranged with for positioning bearing（8）Gland（10）.
4. the chemical flow-process pump of high-cavitation-resistance energy according to claim 1, it is characterized in that：Described sealing ring（5）Bag
Include and the pump housing（1）The ring body of cooperation（5-1）；Described ring body（5-1）On be provided with projection（5-2）.
5. the chemical flow-process pump of high-cavitation-resistance energy according to claim 4, it is characterized in that：Described projection（5-2）By
Ring body（5-1）Place is to impeller（3）On blade（302）Entrance end extends, with impeller（3）Front shroud（301）Protrude above
In blade（302）Gap is formed between part outside entrance end（303）.
6. the chemical flow-process pump of high-cavitation-resistance energy according to claim 5, it is characterized in that：Described projection（5-2）End
Portion and blade（302）And front shroud（301）The distance between junction end size A be 1mm.
7. the chemical flow-process pump of high-cavitation-resistance energy according to claim 1, it is characterized in that：Described radiating ribs structure
（6）By several vertical bar radiating ribs（6-1）With hook-type radiating ribs（6-2）Composition；Described hook-type radiating ribs（6-2）On hook-type
Block（6-3）Protrusion is in vertical bar radiating ribs（6-1）It is outside.
8. the chemical flow-process pump of high-cavitation-resistance energy according to claim 7, it is characterized in that：Described vertical bar radiating ribs
（6-1）With hook-type radiating ribs（6-2）Between stagger, be evenly distributed on bearing housing（4）On outer wall.
9. the chemical flow-process pump of high-cavitation-resistance energy according to claim 1, it is characterized in that：Described groove（7）With axle
Hold case（4）Interior cavity（4-1）, bearing（8）And gland（10）Between form oil circuit（7-1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720991893.XU CN207080368U (en) | 2017-08-09 | 2017-08-09 | The chemical flow-process pump of high-cavitation-resistance energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720991893.XU CN207080368U (en) | 2017-08-09 | 2017-08-09 | The chemical flow-process pump of high-cavitation-resistance energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080368U true CN207080368U (en) | 2018-03-09 |
Family
ID=61419718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720991893.XU Expired - Fee Related CN207080368U (en) | 2017-08-09 | 2017-08-09 | The chemical flow-process pump of high-cavitation-resistance energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228071A (en) * | 2017-08-09 | 2017-10-03 | 江苏海天科技有限公司 | A kind of chemical flow-process pump of high-cavitation-resistance energy |
-
2017
- 2017-08-09 CN CN201720991893.XU patent/CN207080368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228071A (en) * | 2017-08-09 | 2017-10-03 | 江苏海天科技有限公司 | A kind of chemical flow-process pump of high-cavitation-resistance energy |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20180809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |