CN207131592U - A kind of double suction disc-stack centrifuge pump - Google Patents

A kind of double suction disc-stack centrifuge pump Download PDF

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Publication number
CN207131592U
CN207131592U CN201721168256.9U CN201721168256U CN207131592U CN 207131592 U CN207131592 U CN 207131592U CN 201721168256 U CN201721168256 U CN 201721168256U CN 207131592 U CN207131592 U CN 207131592U
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China
Prior art keywords
disk
pump
double
suction disc
stack centrifuge
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CN201721168256.9U
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Chinese (zh)
Inventor
司乔瑞
陆荣
袁建平
崔强磊
袁寿其
张帆
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Zhenjiang Fluid Engineering Equipment Technology Research Institute of Jiangsu University
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Zhenjiang Fluid Engineering Equipment Technology Research Institute of Jiangsu University
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Abstract

The utility model 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 utility model 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

A kind of double suction disc-stack centrifuge pump
Technical field
A kind of double entry pump is the utility model is related to, suitable for multiphase flow and high-viscosity fluid transportation art, is refered in particular to a kind of double Inhale disc-stack centrifuge 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
The purpose of this utility model is to provide a kind of double suction disc-stack centrifuge pump, to solve multiphase flow and high-viscosity fluid The problem of conveying, improve feed flow and operating efficiency.
In order to solve the above technical problems, the concrete technical scheme that the utility model 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), its feature exist In: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), circle Disk (5), one piece of back shroud (8) are formed by connecting by connecting rod (7), and pass through key connection with axle (9);The disk (5) is hollow Annular shape, the leading edge (6) of disk (5) is arc-shaped;The connecting rod (7) passes through disk (5) and back shroud (8) and front shroud (4) It is welded;Disk (5) two sides carries matrix groove;Include symmetrical suction room (10) inside the pump housing (1) With 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.
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 utility model are:In the utility model, tradition is replaced using disk with holes in double-entry impeller Blade, using caused effect of boundary layer come trandfer fluid, two disks of certain interval form runner, in runner from import to Outlet pressure 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 be concentrated In the middle part of runner, and then avoid abrasion;Disk is machined with matrix groove, to improve transfer efficiency;The delivery chamber that the pump housing includes For spiral shape, rectangular cross-section, suction room is half-spiral, and section is pyriform, to improve transfer efficiency.The utility model is also suitable Mode for symmetrically increasing 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 utility model
Fig. 2:The utility model double-entry impeller structural representation
Fig. 3:The utility model impeller disk and connecting rod schematic cross-section
Fig. 4:The utility model pumping chamber schematic shapes
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- axles, 10- suction chambers, 11- pumping chambers.
Embodiment
Below in conjunction with the accompanying drawings, the technical solution of the utility model is described in further details.
With reference to Fig. 1, a kind of double suction disc-stack centrifuge pump disclosed in the utility model, including:The pump housing 1, pump cover 2, double suction leaf Wheel 3, axle 9, the pump cover 2 are placed on the top of the pump housing 1, are bolted;The double-entry impeller 3 by two pieces of front shrouds 4, disk 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, its leading edge 6 For arc-shaped;The connecting rod 7 is welded through disk 5 and back shroud 8 with front shroud 4;The two sides of disk 5 carries matrix Groove;Include symmetrical suction room 10 and delivery chamber 11 inside the pump housing 1, be connected by bolt with ground, the pump housing 1 includes Delivery chamber 11 be spiral shape, 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 course of work of the present utility model is:Into the liquid of double entry pump, delivered to symmetrically by semispiral type suction room 10 The import of double-entry impeller 3, then split flow is carried out etc. by the leading edge 6 of disk 5 and enters disk 5.Rubbed using between disk 5 and medium Wipe power and the energy of prime mover is forwarded to medium, be that liquid flows out from pumping chamber 11.Boundary layer and high pressure are formed at 5 nearly wall of disk Area, 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. The matrix groove processed on disk 5 is advantageous to improve energy conversion rate.Because double-entry impeller 3 is symmetrical, axial force is had Effect 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.
CN201721168256.9U 2017-09-13 2017-09-13 A kind of double suction disc-stack centrifuge pump Active CN207131592U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721168256.9U CN207131592U (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
CN201721168256.9U CN207131592U (en) 2017-09-13 2017-09-13 A kind of double suction disc-stack centrifuge pump

Publications (1)

Publication Number Publication Date
CN207131592U true CN207131592U (en) 2018-03-23

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CN201721168256.9U Active CN207131592U (en) 2017-09-13 2017-09-13 A kind of double suction disc-stack centrifuge pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111320234A (en) * 2020-02-28 2020-06-23 江苏大学 Sound flow coupling cavitation enhanced water treatment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111320234A (en) * 2020-02-28 2020-06-23 江苏大学 Sound flow coupling cavitation enhanced water treatment device
CN111320234B (en) * 2020-02-28 2021-10-12 江苏大学 Sound flow coupling cavitation enhanced water treatment device

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