CN107313945A - A kind of large-scale alkali pump pump body structure - Google Patents
A kind of large-scale alkali pump pump body structure Download PDFInfo
- Publication number
- CN107313945A CN107313945A CN201710617289.5A CN201710617289A CN107313945A CN 107313945 A CN107313945 A CN 107313945A CN 201710617289 A CN201710617289 A CN 201710617289A CN 107313945 A CN107313945 A CN 107313945A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump housing
- flange
- spiral case
- pump cover
- 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.)
- Pending
Links
Classifications
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- 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
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of large-scale alkali pump pump body structure, it includes the pump housing that a scroll casing shape, side axial end are connected to flange-interface pipe, there is the spiral case cavity for accommodating impeller rotation in the described pump housing, the outer end ring-shaped cavity of spiral case cavity is that an axial cross section is half kidney ellipsoid flow channel for liquids body, the half kidney ellipsoid flow channel for liquids body wherein positioned at flange-interface pipe side is connected with the flange-interface pipe with chamfered transition, forms liquid communication road junction；The opposite side axial end of the pump housing is pump cover connecting end surface, and its central bore is corresponding with pump cover, and is being provided with the step circular groove for pump cover insertion on the outside of central bore on inner edge；The volute chamber body phase set in the pump housing is connected to one and is in the connected state fluid hose of arranged tangential, and the outer end of the fluid hose is provided with external pipe flange；The step for installing positioning for impeller axle is provided with described liquid communication road junction convex shoulder is installed；It has simple in construction, easy to install, the features such as reducing manufacturing cost.
Description
Technical field
The present invention relates to a kind of large-scale alkali pump pump body structure, belong to chemical industry pump technical field.
Background technology
Alkali pump is as a kind of chemical pump, and its structure is the centrifugar liquid pump for needing motor as power source, but due to changing
Often there is certain corrosivity in the working environment of work pump, and the stator and rotor of motor are all arranged on output shaft, commonly
The rotating shaft dynamic sealing of chemical pump uses conventional movable sealing structure, therefore is comparatively easily caused medium leakage.In addition, pump
The part contact corrosion pump liquid of body and pump cover is often higher using cost to improve the corrosion resistance of the pump housing and pump cover
Resistant material, this will greatly increase the manufacturing cost of chemical pump, therefore, how improve the sealing property of chemical pump, prevent
Only corrosive liquids is revealed, and the manufacturing cost of reduction chemical pump is thing that Beng Ye manufacturing enterprises are extremely concerned about.
Such as Patent No. ZL201520006773.0 discloses a kind of chemical pump, and it includes the pump housing and pump cover, wherein, pump cover
It is arranged on the pump housing, pump cover and the pump housing one centrifugal chamber of formation, is provided with impeller in centrifugal chamber, pump cover is provided with impeller corresponding position
Impeller sleeve；Pump cover is connected with a suspended rack assembly, and a horizontally disposed rotating shaft is provided with suspended rack assembly, and rotating shaft one end is passed through
Suspended rack assembly, pump cover are adapted with impeller sleeve, and impeller is mutually fixed by impeller nut with rotating shaft one end, and impeller is with rotating shaft
Rotate；Pump cover is being provided with mechanical sealing member with rotating shaft corresponding position, and mechanical sealing member is configured with gland, and gland clinching is in pump cover
On.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and provide a kind of simple in construction, side of installing and using
Just, the vane pump functional reliability set in centrifugal chamber, reduction system can be improved by the centrifugal chamber that combines to form with pump cover
Cause this large-scale alkali pump pump body structure.
The purpose of the present invention is completed by following technical solution, a kind of large-scale alkali pump pump body structure, and it includes one
Scroll casing shape, side axial end, which are connected to, the spiral case cavity for accommodating impeller rotation in the pump housing of flange-interface pipe, the described pump housing,
The outer end ring-shaped cavity of spiral case cavity is that an axial cross section is half kidney ellipsoid flow channel for liquids body, wherein positioned at flange-interface pipe side
Half kidney ellipsoid flow channel for liquids body connected with the flange-interface pipe with chamfered transition, form liquid communication road junction；The pump housing
Opposite side axial end be pump cover connecting end surface, its central bore is corresponding with pump cover, and is being set on the outside of central bore on inner edge
It is equipped with the step circular groove being embedded in for pump cover.
As preferred：The volute chamber body phase set in the pump housing is connected to a connected state fluid hose for being in arranged tangential, and
The outer end of the fluid hose is provided with external pipe flange；It is provided with described liquid communication road junction and installs fixed for impeller axle
The step of position installs convex shoulder；The scroll casing shape bottom of the pump housing is separately provided with the pump housing for placing bottom surface or connection
Seat.
The present invention is easy to install with simple in construction, can be improved by the centrifugal chamber that combines to form with pump cover
The features such as vane pump functional reliability set in centrifugal chamber, reduction manufacturing cost.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the pump housing of the present invention.
Fig. 2 is the side structure schematic view of the pump housing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail：Fig. 1, shown in 2, a kind of large-scale alkali pump of the present invention
Pump body structure, it includes having appearance in the pump housing 2 that a scroll casing shape, side axial end are connected to flange-interface pipe 1, the described pump housing 2
The spiral case cavity 3 of impeller of receiving rotation, the outer end ring-shaped cavity of spiral case cavity is that an axial cross section is half kidney ellipsoid flow channel for liquids body
4, wherein the half kidney ellipsoid flow channel for liquids body positioned at the side of flange-interface pipe 1 is connected with the flange-interface pipe with the transition of inclined-plane 5,
Liquid communication road junction 6 is formed, is conducive to the flow regime of fluid, mobile performance of the fluid in the pump housing is improved；The pump housing 2
Opposite side axial end is pump cover connecting end surface 7, and its central bore 8 is corresponding with pump cover, and is set on the outside inner edge of central bore 8
It is equipped with and fixed step circular groove 9 is embedded in and positioned for pump cover.
Shown in figure, the spiral case cavity 3 set in the pump housing 2 is connected to a connected state fluid hose for being in arranged tangential
10, and it is provided with the outer end of the fluid hose 10 external pipe flange 11；It is provided with described liquid communication road junction 6 for leaf
The step that wheel shaft installs positioning installs convex shoulder 12, improves the operating efficiency and stability of impeller rotation；Separately in the pump housing 2
Scroll casing shape bottom be provided with pump housing seat 13 for overall chemical pump to be positioned over to ground or connection.
The present invention can be used on chemical pump, especially alkali pump according to prior art is supporting, with pump cover, impeller, pump shaft, dynamic
A new chemical pump is constituted after the assembling such as state sealing device and motor, those skilled in the art are understanding the present invention
On the basis of content, using prior art and the knowledge of grasp, one chemical pump of the implementation present invention and implementation is can be real
Existing, and any creative work need not be made.
Claims (2)
1. a kind of large-scale alkali pump pump body structure, it includes the pump housing that a scroll casing shape, side axial end are connected to flange-interface pipe, its
It is characterised by there is the spiral case cavity for accommodating impeller rotation in the described pump housing, the outer end ring-shaped cavity of spiral case cavity axially cuts for one
Face is half kidney ellipsoid flow channel for liquids body, wherein the half kidney ellipsoid flow channel for liquids body positioned at flange-interface pipe side connects with the flange
Mouth pipe is connected with chamfered transition, forms liquid communication road junction；The opposite side axial end of the pump housing is pump cover connecting end surface, wherein
Intracardiac hole is corresponding with pump cover, and is being provided with the step circular groove for pump cover insertion on the outside of central bore on inner edge.
2. large-scale alkali pump pump body structure according to claim 1, it is characterised in that the spiral case cavity set in the pump housing
It is connected to one and is in the connected state fluid hose of arranged tangential, and the outer end of the fluid hose is provided with external pipe flange；Described
The step for installing positioning for impeller axle is provided with liquid communication road junction convex shoulder is installed；The another scroll casing shape in the pump housing
Bottom is provided with the pump housing seat for placing bottom surface or connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617289.5A CN107313945A (en) | 2017-07-26 | 2017-07-26 | A kind of large-scale alkali pump pump body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617289.5A CN107313945A (en) | 2017-07-26 | 2017-07-26 | A kind of large-scale alkali pump pump body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313945A true CN107313945A (en) | 2017-11-03 |
Family
ID=60169861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710617289.5A Pending CN107313945A (en) | 2017-07-26 | 2017-07-26 | A kind of large-scale alkali pump pump body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313945A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806530A (en) * | 2015-04-24 | 2015-07-29 | 丹东通博泵业有限公司 | High pressure resistant magnetic pump |
| CN205423188U (en) * | 2016-02-25 | 2016-08-03 | 上海高田制泵有限公司 | Single -stage single -suction pump with novel pump cover |
| CN205533270U (en) * | 2016-01-27 | 2016-08-31 | 大连罗斯泵业有限公司 | High -efficient self priming pump of combined type |
| CN207393488U (en) * | 2017-07-26 | 2018-05-22 | 德清县东旭合金钢铸造有限公司 | Large-scale alkali pump pump body structure |
-
2017
- 2017-07-26 CN CN201710617289.5A patent/CN107313945A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806530A (en) * | 2015-04-24 | 2015-07-29 | 丹东通博泵业有限公司 | High pressure resistant magnetic pump |
| CN205533270U (en) * | 2016-01-27 | 2016-08-31 | 大连罗斯泵业有限公司 | High -efficient self priming pump of combined type |
| CN205423188U (en) * | 2016-02-25 | 2016-08-03 | 上海高田制泵有限公司 | Single -stage single -suction pump with novel pump cover |
| CN207393488U (en) * | 2017-07-26 | 2018-05-22 | 德清县东旭合金钢铸造有限公司 | Large-scale alkali pump pump body structure |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |