CN107476985A - A kind of double suction disc-stack centrifuge pump - Google Patents
A kind of double suction disc-stack centrifuge pump Download PDFInfo
- Publication number
- CN107476985A CN107476985A CN201710820623.7A CN201710820623A CN107476985A CN 107476985 A CN107476985 A CN 107476985A CN 201710820623 A CN201710820623 A CN 201710820623A CN 107476985 A CN107476985 A CN 107476985A
- Authority
- CN
- China
- Prior art keywords
- disk
- pump
- double
- suction disc
- stack centrifuge
- 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
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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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
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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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of double suction disc-stack centrifuge pump configuration, including the pump housing, pump cover, double-entry impeller, axle, the pump cover is placed on above the pump housing, is bolted；The double-entry impeller is formed by connecting by connecting rod 7 by two pieces of front shrouds, disk, one piece of back shroud, and is passed through key connection with axle；The disk is open circles ring-type, and its leading edge is arc-shaped；The connecting rod is welded through disk and back shroud with front shroud；The disk two sides carries matrix groove；The pump body includes symmetrical suction room and delivery chamber, is connected by bolt with ground to improve transfer efficiency.The present invention have the characteristics that it is compact-sized, operate steadily, anti-cavitation ability it is strong, can be applied to the conveying of multiphase flow and high-viscosity fluid.
Description
Technical field
The present invention relates to a kind of double entry pump, suitable for multiphase flow and high-viscosity fluid transportation art, refers in particular to a kind of double suction dish
Chip centrifugal pump.
Background technology
Pump is the core component of fluid delivery system, is widely used in each department of national economy.Centrifugal pump is revolved by impeller
Centrifugal force caused by turning conveys the pump of liquid, has the advantages that easy to adjust, efficiency high, reliable, the scope of application is most
Extensively.Common centrifugal pump belongs to vane pump, by blade Fluid Motion Driven By Moving during operation, realizes that energy converts.From the point of view of surface it
Continuous uniform water outlet, actually it is not continuous because the number of blade is limited, its caused pressure also will one compared with
A small range fluctuates, and there is also barometric gradient for impeller internal.Meanwhile some problems when centrifuging pump operation also limit its use
Scope, such as：Cavitation, it is less efficient during transfer of highly viscous liquid, performance to gas sensitization, convey it is easy to wear during solid-liquid two-phase flow,
Block winding etc..Disc-stack centrifuge pump is also referred to as disc pump, is a kind of pump that fluid conveying is carried out using effect of boundary layer.The patent No.
ZL200520036669.2, which discloses one kind, disk-like impeller disc pump, to solve conveying high concentration, high viscosity, high rigidity material
The problem of pump, but due to disk limited amount, it is low to still suffer from feed flow, the problems such as efficiency is low.
The content of the invention
It is an object of the invention to provide a kind of double suction disc-stack centrifuge pump, is conveyed with solving multiphase flow and high-viscosity fluid
The problem of, improve feed flow and operating efficiency.
In order to solve the above technical problems, the concrete technical scheme that the present invention uses is as follows：A kind of double suction disc-stack centrifuge
Pump, including：The pump housing (1), pump cover (2), double-entry impeller (3), axle (9), it is characterised in that：The pump cover (2) is placed on the pump housing (1)
Side, is bolted；The double-entry impeller (3) passes through connecting rod by two pieces of front shrouds (4), disk (5), one piece of back shroud (8)
(7) it is formed by connecting, and passes through key connection with axle (9)；The disk (5) is open circles ring-type, and the leading edge (6) of disk (5) is circle
Arcuation；The connecting rod (7) is welded through disk (5) and back shroud (8) with front shroud (4)；The equal band in disk (5) two sides
There is matrix groove；Include symmetrical suction room (10) and delivery chamber (11) inside the pump housing (1), connected by bolt and ground
Connect；The number of disk (5) can need to increase according to flow and lift to be set.
The front shroud (4) and back shroud (8) are placed in parallel, and axial line of the axial line with axle (9) overlaps.
Disk (5) quantity is two pieces, and using spherical, radial is distributed in surface for the matrix groove on its surface, and
Parallel with front shroud (4) and back shroud (8) and equidistant placement.
The leading edge (6) of the disk (5) is 1/4 circular shape.
The section of the connecting rod (7) is circular arc；Connecting rod (7) quantity is 3, and the axial line on axle (9) is circumferentially square
To being uniformly distributed.
The delivery chamber (11) that the pump housing (1) includes is spiral shape, and cross section of fluid channel is rectangle；It is semi-spiral to suck room (10)
Shape, cross section of fluid channel are pyriform；The ratio of delivery chamber (11) base circle diameter (BCD) and disk (5) diameter is 1.04.
The leading edge of the double-entry impeller disk carries out waiting split flow to the incoming for sucking room, because double suction can balance generation
Axial force.
The beneficial effects of the present invention are：In the present invention, traditional blades are replaced using disk with holes in double-entry impeller, utilized
Caused effect of boundary layer carrys out trandfer fluid, and two disks of certain interval form runner, and runner is interior from import to outlet pressure
It is evenly distributed, so as to which cavitation performance is preferable.Disk is nearby higher-pressure region so as to force the particle in multiphase flow to concentrate in runner
Portion, and then avoid abrasion；Disk is machined with matrix groove, to improve transfer efficiency；The delivery chamber that the pump housing includes is spiral shape,
Rectangular cross-section, suction room are half-spiral, and section is pyriform, to improve transfer efficiency.The present disclosure additionally applies for symmetrical increase
The mode of sum of series disk number is used.
Brief description of the drawings
Fig. 1：A kind of double suction disc-stack centrifuge pump configuration schematic diagram of the present invention
Fig. 2：Double-entry impeller structural representation of the present invention
Fig. 3：Impeller disk of the present invention and connecting rod schematic cross-section
Fig. 4：Pumping chamber schematic shapes of the present invention
In figure：The 1- pump housings, 2- pump covers, 3- double-entry impellers, 4- front shrouds, 5- disks, 6- leading edges, 7- connecting rods, 8- back shrouds, 9-
Axle, 10- suction chambers, 11- pumping chambers.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is described in further details.
With reference to Fig. 1, a kind of double suction disc-stack centrifuge pump disclosed by the invention, including：The pump housing 1, pump cover 2, double-entry impeller 3,
Axle 9, the pump cover 2 are placed on the top of the pump housing 1, are bolted；The double-entry impeller 3 is by 5, one pieces of two pieces of front shrouds 4, disk
Back shroud 8 is formed by connecting by connecting rod 7, and passes through key connection with axle 9；The disk 5 is open circles ring-type, and its leading edge 6 is circle
Arcuation；The connecting rod 7 is welded through disk 5 and back shroud 8 with front shroud 4；The two sides of disk 5 carries cancave groove
Groove；Include symmetrical suction room 10 and delivery chamber 11 inside the pump housing 1, be connected by bolt with ground, what the pump housing 1 included
Delivery chamber 11 is spiral shape, and cross section of fluid channel is rectangle；Suction room 10 is half-spiral, and cross section of fluid channel is pyriform.
With reference to Fig. 2, the front and rear covers 4 and back shroud 8 are placed in parallel, and axial line weight of both axial lines with axle 9
Close, the leading edge 6 of disk 5 is made into 1/4 circular shape, to carry out preferably water conservancy diversion to the incoming for sucking room.
With reference to Fig. 2, Fig. 3, the quantity of disk 5 is two pieces, and using spherical, radial is uniform for the matrix groove on its surface
In surface, by its parallel with front shroud 4 and back shroud 8 and equidistant placement.
With reference to Fig. 3, the section of connecting rod 7 uses circular arc, and in order to be fastenedly connected, the quantity of connecting rod 7 takes 3, and on axle 9
Axial line is distributed uniformly and circumferentially.
With reference to Fig. 4, in order to take into account the hydraulic performance of pump, the ratio of the base circle diameter (BCD) D3 of delivery chamber 11 and the diameter of disk 5 is 1.04.
The present invention the course of work be：Into the liquid of double entry pump, symmetrical double suction is delivered to by semispiral type suction room 10
The import of impeller 3, then split flow is carried out etc. by the leading edge 6 of disk 5 and enters disk 5.Utilize the internal friction between disk 5 and medium
The energy of prime mover is forwarded to medium, is that liquid flows out from pumping chamber 11.Boundary layer and higher-pressure region are formed at 5 nearly wall of disk,
Multiphase medium is concentrated to the middle part of disk 5, avoid the abrasion to structure, it also avoid destruction of the structure to pumped (conveying) medium.Circle
The matrix groove processed on disk 5 is advantageous to improve energy conversion rate.Because double-entry impeller 3 is symmetrical, axial force is able to effectively
Balance.Because flowing category smooth transition of the liquid stream in double-entry impeller 3, the anti-cavitation performance of whole pump are preferable.
Claims (6)
1. a kind of double suction disc-stack centrifuge pump, including：The pump housing (1), pump cover (2), double-entry impeller (3), axle (9), it is characterised in that：
The pump cover (2) is placed on above the pump housing (1), is bolted；The double-entry impeller (3) is by two pieces of front shrouds (4), disks
(5), one piece of back shroud (8) is formed by connecting by connecting rod (7), and passes through key connection with axle (9)；The disk (5) is open circles
Ring-type, the leading edge (6) of disk (5) is arc-shaped；The connecting rod (7) is welded through disk (5) and back shroud (8) with front shroud (4)
Connect and form；Disk (5) two sides carries matrix groove；Include inside the pump housing (1) symmetrical suction room (10) and
Delivery chamber (11), it is connected by bolt with ground；The number of disk (5) can need to increase according to flow and lift to be set.
A kind of 2. double suction disc-stack centrifuge pump according to claim 1, it is characterised in that：The front shroud (4) and bonnet
Plate (8) is placed in parallel, and axial line of the axial line with axle (9) overlaps.
A kind of 3. double suction disc-stack centrifuge pump according to claim 1, it is characterised in that：Disk (5) quantity is two
Block, using spherical, radial is distributed in surface for the matrix groove on its surface, and it is parallel with front shroud (4) and back shroud (8) and
It is equidistant to lay.
A kind of 4. double suction disc-stack centrifuge pump according to claim 1, it is characterised in that：The leading edge (6) of the disk (5)
For 1/4 circular shape.
A kind of 5. double suction disc-stack centrifuge pump according to claim 1, it is characterised in that：The section of the connecting rod (7) is
Circular arc；Connecting rod (7) quantity is 3, and the axial line on axle (9) is distributed uniformly and circumferentially.
A kind of 6. double suction disc-stack centrifuge pump according to claim 1, it is characterised in that：The pressure that the pump housing (1) includes
It is spiral shape to go out room (11), and cross section of fluid channel is rectangle；It is half-spiral to suck room (10), and cross section of fluid channel is pyriform；Delivery chamber
(11) ratio of base circle diameter (BCD) and disk (5) diameter is 1.04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820623.7A CN107476985A (en) | 2017-09-13 | 2017-09-13 | A kind of double suction disc-stack centrifuge pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820623.7A CN107476985A (en) | 2017-09-13 | 2017-09-13 | A kind of double suction disc-stack centrifuge pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107476985A true CN107476985A (en) | 2017-12-15 |
Family
ID=60584824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710820623.7A Pending CN107476985A (en) | 2017-09-13 | 2017-09-13 | A kind of double suction disc-stack centrifuge pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107476985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989928A (en) * | 2017-12-22 | 2019-07-09 | 台达电子工业股份有限公司 | Fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784635Y (en) * | 2005-04-15 | 2006-05-31 | 余滔 | Low pulse paper pulp pump |
| CN200999751Y (en) * | 2006-12-29 | 2008-01-02 | 上海东方泵业(集团)有限公司 | Double lamellar flow channel blade interleaving arrangement structure used for blade wheel |
| CN201133353Y (en) * | 2007-12-12 | 2008-10-15 | 上海东方泵业(集团)有限公司 | Double suction constant pressure pump |
| CN105134645A (en) * | 2015-09-01 | 2015-12-09 | 兰州理工大学 | Impeller and centrifugal pump provided with same |
| CN207131592U (en) * | 2017-09-13 | 2018-03-23 | 江苏大学镇江流体工程装备技术研究院 | A kind of double suction disc-stack centrifuge pump |
-
2017
- 2017-09-13 CN CN201710820623.7A patent/CN107476985A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784635Y (en) * | 2005-04-15 | 2006-05-31 | 余滔 | Low pulse paper pulp pump |
| CN200999751Y (en) * | 2006-12-29 | 2008-01-02 | 上海东方泵业(集团)有限公司 | Double lamellar flow channel blade interleaving arrangement structure used for blade wheel |
| CN201133353Y (en) * | 2007-12-12 | 2008-10-15 | 上海东方泵业(集团)有限公司 | Double suction constant pressure pump |
| CN105134645A (en) * | 2015-09-01 | 2015-12-09 | 兰州理工大学 | Impeller and centrifugal pump provided with same |
| CN207131592U (en) * | 2017-09-13 | 2018-03-23 | 江苏大学镇江流体工程装备技术研究院 | A kind of double suction disc-stack centrifuge pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989928A (en) * | 2017-12-22 | 2019-07-09 | 台达电子工业股份有限公司 | Fan |
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