CN205533264U - Vertical multi -stage centrifugal pump - Google Patents

Vertical multi -stage centrifugal pump Download PDF

Info

Publication number
CN205533264U
CN205533264U CN201620082470.1U CN201620082470U CN205533264U CN 205533264 U CN205533264 U CN 205533264U CN 201620082470 U CN201620082470 U CN 201620082470U CN 205533264 U CN205533264 U CN 205533264U
Authority
CN
China
Prior art keywords
deflector
impeller
water inlet
pump
water
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.)
Expired - Fee Related
Application number
CN201620082470.1U
Other languages
Chinese (zh)
Inventor
李娟�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mianyang Bevan Technology Co Ltd
Original Assignee
Mianyang Bevan Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mianyang Bevan Technology Co Ltd filed Critical Mianyang Bevan Technology Co Ltd
Priority to CN201620082470.1U priority Critical patent/CN205533264U/en
Application granted granted Critical
Publication of CN205533264U publication Critical patent/CN205533264U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a vertical multi -stage centrifugal pump, include: support, pump shaft, water conservancy diversion mechanism, business turn over water section, base, a withstand voltage section of thick bamboo, rotor part, water conservancy diversion lid, business turn over water section is installed to base top, and rotor parts and water conservancy diversion mechanism, a withstand voltage section of thick bamboo are installed to business turn over water section top, and the cooperation of rotor parts is installed in water conservancy diversion mechanism, is equipped with a withstand voltage section of thick bamboo at the outside cover of water conservancy diversion mechanism, and fixed mounting has the water conservancy diversion to cover above a withstand voltage section of thick bamboo and water conservancy diversion mechanism, and the water conservancy diversion side of covering installs the support, and the motor is installed on the upper portion of support. The utility model discloses a multistage pump that technique aim at provides one kind, and automated production, blade more approached easily, the surface is more smooth, efficiency is higher, impeller and pump shaft need not the key -type connection.

Description

A kind of vertical multi-stage centrifugal pump
Technical field
The utility model relates to supply equipment field, particularly a kind of vertical multi-stage centrifugal pump.
Background technology
Multistage pump is to carry a kind of plant equipment from running water to industrial liquid.
Traditional MODEL VERTICAL MULTISTAGE PUMP bottom in and top out, is not easy to dismounting when being not easy to installation pipeline with maintenance water pump;Traditional MODEL VERTICAL MULTISTAGE PUMP is not provided with fairing cap at the top of pump so that the efficiency of pump reduces;Traditional multistage pump needs to be provided with key on pump shaft and is connected with impeller, causes multistage pump structure more complicated, and assembling process is the most loaded down with trivial details, reduces the speed of production of pump so that the production cost of pump is higher.
Utility model content
The deficiency existed for above-mentioned MODEL VERTICAL MULTISTAGE PUMP, technical purpose of the present utility model be to provide a kind of be easily installed, required parts are less, structure is simpler, in hgher efficiency, impeller with pump shaft without bonded vertical multi-stage centrifugal pump, this vertical multi-stage centrifugal pump makes that installing of pump be more convenient, the assembling of pump faster, production efficiency higher.
The utility model is achieved through the following technical solutions:
A kind of vertical multi-stage centrifugal pump, including water inlet-outlet segment, resistance to pressure cylinder, deflector and rotor part;Described resistance to pressure cylinder bottom connects water inlet-outlet segment, is provided with deflector in described resistance to pressure cylinder, and the cavity between inwall and the deflector outer wall of described resistance to pressure cylinder forms pressure chamber;Being provided with rotor part in described deflector, deflector is stretched out at the two ends of described rotor part;The inlet segment of described water inlet-outlet segment connects with deflector water inlet, and the delivery port of described deflector is communicated to the water exit end of water inlet-outlet segment by pressure chamber.
Further, described rotor part includes that pump shaft, some impellers and some impeller spacers, described impeller and impeller spacer are all located on pump shaft, and wherein impeller spacer is located between two impellers of arbitrary neighborhood.
Further, described deflector includes air deflector, water outlet stator, some support guide vanes, some stators;The most some support guide vanes are tightly connected formation diversion shell, and the cavity between outer wall and the inwall of resistance to pressure cylinder of described diversion shell forms pressure chamber;Being provided with stator in described support guide vane, described stator matches with impeller;The water inlet of described deflector is provided with air deflector, and the delivery port of described deflector is provided with water outlet stator.
Further, described water inlet-outlet segment includes inlet segment, water exit end and deflector, and described inlet segment plate diversed with water exit end separates;Described water inlet-outlet segment is arranged on above base, and/water inlet-outlet segment and base are set to one, and the center of water inlet-outlet segment is provided with bearing block, and the bottom of described pump shaft is installed in bearing block by bearing.
Further, the top of described resistance to pressure cylinder is sealedly connected with fairing cap;Being equipped with pull bar between described fairing cap and water inlet-outlet segment, described pull bar is placed in outside resistance to pressure cylinder.
Further, described fairing cap is provided with centre bore and diversion cavity, and described pump shaft is provided with sealing device through the centre bore of fairing cap, pump shaft with the gap location of fairing cap;Described diversion cavity connects deflector inside and pressure chamber simultaneously.
Further, described fairing cap top is provided with support, and the top of support is provided with motor, and the output shaft of described motor is connected with pump shaft by shaft coupling.
Further, the cross section that described pump shaft is installed impeller and impeller spacer position is non-circular, and it is shaped as polygon or by circular arc and the combined shaped of straight line or circular arc and the combined shaped of circular arc.
The beneficial effects of the utility model are:
1, by being provided with fairing cap and water outlet stator so that the fluid after pressurization converts kinetic energy into pressure energy, and fluid can enter in resistance to pressure cylinder smoothly, reduce the generation of eddy current and turbulent flow, improve the efficiency of pump;
2, by inlet segment, water exit end are set to integral type, so can reduce quantity and the assembling link of parts, the deflector in water inlet-outlet segment is classified as inlet segment and water exit end, and the bearing block being provided with in the center of water inlet-outlet segment is for installing pump shaft;
3, by being provided with some through holes in the outer of fairing cap for installing pull bar, pull bar makes fairing cap compress resistance to pressure cylinder, deflector, it is to avoid high-pressure fluid is revealed, and also increases the intensity of whole pump simultaneously;
4, it is set to non-circular by pump shaft being installed the cross sectional shape of the position of impeller and impeller spacer, it is shaped as polygon or by circular arc and the combined shaped of straight line or circular arc and the combined shaped of circular arc, the cross sectional shape of impeller shaft hole is similar to the cross sectional shape of the position that pump shaft installs impeller and impeller spacer, make to need not axle key impeller is fixed, decrease the number of parts of pump, the structure of the pump shaft simplified so that the efficiency producing, assembling water pump can improve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Figure marks: 1 be support, 2 be pull bar, 3 be sealing device, 4 be water outlet stator, 5 be stage casing, 6 be stator, 7 be deflector, 8 for water inlet-outlet segment, 8-1 be inlet segment, 8-2 be water exit end, 8-3 be that deflector, 8-4 are axle bed, 9 are base, 10 are lower bearing, 11 are impeller, 12 are pump shaft, 13 are impeller spacer, 14 are resistance to pressure cylinder, 15 are shaft coupling, 16 are rotor part, 17 are motor, 18 are fairing cap.
Detailed description of the invention
Below in conjunction with the accompanying drawings the utility model is described in detail.
A kind of MODEL VERTICAL MULTISTAGE PUMP as shown in Figure 1, including: support 1, pull bar 2, sealing device 3, water outlet stator 4, support guide vane 5, stator 6, deflector 7, water inlet-outlet segment 8, inlet segment 8-1, water exit end 8-2, deflector 8-3, axle bed 8-4, base 9, lower bearing 10, impeller 11, pump shaft 12, impeller spacer 13, resistance to pressure cylinder 14, shaft coupling 15, rotor part 16, motor 17, fairing cap 18, including water inlet-outlet segment 8, resistance to pressure cylinder 14, deflector 7 and rotor part 16;Described resistance to pressure cylinder 14 bottom connects water inlet-outlet segment 8, is provided with deflector 7 in described resistance to pressure cylinder 14, and the cavity between inwall and deflector 7 outer wall of described resistance to pressure cylinder 14 forms pressure chamber;Being provided with rotor part 16 in described deflector 7, deflector 7 is stretched out at the two ends of described rotor part 16;The inlet segment of described water inlet-outlet segment 8 connects with deflector 7 water inlet, and the delivery port of described deflector 7 is communicated to the water exit end of water inlet-outlet segment 8 by pressure chamber.
Impeller 11 on rotor part 16 has some levels, fluid can be pressurizeed by every one stage impeller 11, fluid is after impeller 11 pressurizes, it is flowed into deflector 7 from the outlet of impeller 11, drainage/water conservancy diversion through deflector 7 flows to the import of next stage impeller 11, circulates with this, after afterbody impeller 11 flows out, fairing cap 18 through deflector 7 is flowed in resistance to pressure cylinder 14, is finally flowed into the water exit end 8-2 of water inlet-outlet segment 8 from resistance to pressure cylinder 14.
Described rotor part 16 includes pump shaft 12, some impellers 11 and some impeller spacers 14, and described impeller 11 and impeller spacer 14 are all located on pump shaft 12, and wherein impeller spacer 14 is located between two impellers 11 of arbitrary neighborhood.
Pump shaft 12 is provided with impeller 11, with impeller spacer 14, impeller 11 is separated, impeller 11 can just be extend in the diversion cavity of deflector 7, pump shaft is connected with motor 17 through the centre bore of fairing cap 18 by shaft coupling 15, drive pump shaft 12 to rotate by motor 17 and fluid is pressurizeed, the bottom of pump shaft 12 is arranged in bearing block by bearing, is supported rotor part 16.
Described deflector 7 includes air deflector, water outlet stator 4, some support guide vanes 5, some stators 6;The most some support guide vanes 5 are tightly connected formation diversion shell, and the cavity between outer wall and the inwall of resistance to pressure cylinder 14 of described diversion shell forms pressure chamber;Being provided with stator 6 in described support guide vane 5, described stator 6 matches with impeller 11;The water inlet of described deflector 7 is provided with air deflector, and the delivery port of described deflector 7 is provided with water outlet stator 4.
Deflector 7 can reduce energy loss during fluid change direction, stator 6 and support guide vane 5 carry out water conservancy diversion after fluid is flowed out impeller 11 outlet, fluid is made to enter into the import of next stage impeller 11 smoothly, and fluid enters the direction of impeller 11 and forms an angle with fluid flow direction, mainly from impeller 11, fluid is flowed into resistance to pressure cylinder 14 carries out water conservancy diversion to water outlet stator, reduce the speed of fluid flowing, too much eddy current is avoided to produce, fluid after pressurization can be carried out water conservancy diversion by fairing cap 18 so that fluid can smooth out and enter in resistance to pressure cylinder 14.
Described water inlet-outlet segment 8 includes that inlet segment 8-1, water exit end 8-2 and deflector 8-3, described inlet segment 8-1 plate diversed with water exit end 8-2 8-3 separate;Described water inlet-outlet segment 8 is arranged on above base 9, and the center of water inlet-outlet segment 8 is provided with bearing block 8-4, and the bottom of described pump shaft 12 is installed in bearing block 8-4 by bearing.
By inlet segment 8-1, water exit end 8-2 are set to integral type, so can reduce quantity and the assembling link of parts, deflector 8-3 in water inlet-outlet segment 8 is classified as inlet segment 8-1 and water exit end 8-2, the bearing block 8-4 being provided with in the center of water inlet-outlet segment 8 is for installing pump shaft 5, and whole pump is supported by the base being arranged on water inlet-outlet segment 8.
The top of described resistance to pressure cylinder 14 is sealedly connected with fairing cap 18;Being equipped with pull bar 2 between described fairing cap 18 and water inlet-outlet segment 8, described pull bar 2 is placed in outside resistance to pressure cylinder 14.
Being equipped with pull bar 2 between fairing cap 18 and water inlet-outlet segment 8, pull bar 2 makes fairing cap 18 compress resistance to pressure cylinder 14, deflector 7, it is to avoid high-pressure fluid is revealed, and also increases the intensity of whole pump simultaneously.
Described fairing cap 18 is provided with centre bore and diversion cavity, and described pump shaft 12 is provided with sealing device 3 through the centre bore of fairing cap 18, pump shaft 12 with the gap location of fairing cap 18;Described diversion cavity connects deflector 7 inside and pressure chamber simultaneously.
Described fairing cap 18 top is provided with support 1, and the top of support 1 is provided with motor 17, and the output shaft of described motor 17 is connected with pump shaft 12 by shaft coupling.
The cross section installing impeller 11 and impeller spacer 13 position on described pump shaft 12 is non-circular, and it is shaped as polygon or by circular arc and the combined shaped of straight line or circular arc and the combined shaped of circular arc.
It is set to non-circular by pump shaft 12 being installed the cross sectional shape of the position of impeller 11 and impeller spacer 13, it is shaped as polygon or by circular arc and the combined shaped of straight line or circular arc and the combined shaped of circular arc, make to need not axle key impeller 11 is fixed, decrease the number of parts of pump, the structure of the pump shaft 12 simplified so that the efficiency producing, assembling water pump can improve.
Embodiment one:
The generally progression of multistage pump is at least two-stage, multistage pump can be set to 5 grades, the quantity of impeller 11 is than impeller spacer more than 13 one, resistance to pressure cylinder 14, water outlet stator 4, stage casing 5, stator 6 material can be 304, impeller 11, the material of pump shaft 2 can be 20Cr13, the lower bearing 10 being arranged in the 8 of Inlet and outlet water is water pilot bearing, the sealing device 3 sealing pump selects mechanical seal structure, shaft coupling 15 may select half a coupler, the cross sectional shape of the position of impeller 11 and impeller spacer 13 installed by pump shaft 2 is that two symmetrical parallel lines intersect the close-shaped of composition with circle, impeller 11 can be arranged on pump shaft 2 by hot jacket method;It it is 180 ° by the angle of water inlet pipe 9-1 Yu outlet pipe 9-2.
By the deflector 7 of pump and rotor part 16 are set to stainless steel, and most of parts all pass through to be stamped and formed out, make pump more lightweight, more mate the production of automatic assembly line, reduce stator 6, support guide vane 5, impeller 11, the vane thickness of water outlet stator 4, the water passage surface of pump is more smooth, improves the efficiency of pump.
Embodiment two:
The progression of multistage pump is set to 6 grades, the quantity of impeller 11 is than impeller spacer more than 13 one, resistance to pressure cylinder 14, water outlet stator 4, stage casing 5, stator 6 material can be stainless steel, the material of pump shaft 2 can be 20Cr13, the material of impeller 11 is engineering plastics, the lower bearing 10 being arranged in the 8 of Inlet and outlet water is water pilot bearing, the sealing device 3 sealing pump selects mechanical seal structure, shaft coupling 15 may select half a coupler, the cross sectional shape of the position of impeller 11 and impeller spacer 13 installed by pump shaft 2 is that two symmetrical parallel lines intersect the close-shaped of composition with circle, impeller 11 can be arranged on pump shaft 2 by hot jacket method;It it is 90 ° by the angle of water inlet pipe 9-1 Yu outlet pipe 9-2.

Claims (8)

1. a vertical multi-stage centrifugal pump, it is characterised in that include water inlet-outlet segment (8), resistance to pressure cylinder (14), deflector (7) and rotor part (16);Described resistance to pressure cylinder (14) bottom connects water inlet-outlet segment (8), is provided with deflector (7) in described resistance to pressure cylinder (14), and the cavity between inwall and deflector (7) outer wall of described resistance to pressure cylinder (14) forms pressure chamber;Being provided with rotor part (16) in described deflector (7), deflector (7) is stretched out at the two ends of described rotor part (16);The inlet segment of described water inlet-outlet segment (8) connects with deflector (7) water inlet, and the delivery port of described deflector (7) is communicated to the water exit end of water inlet-outlet segment (8) by pressure chamber.
2. vertical multi-stage centrifugal pump as claimed in claim 1, it is characterized in that, described rotor part (16) includes pump shaft (12), some impellers (11) and some impeller spacers (13), described impeller (11) and impeller spacer (13) are all located on pump shaft (12), and wherein impeller spacer (13) is located between two impellers (11) of arbitrary neighborhood.
3. vertical multi-stage centrifugal pump as claimed in claim 2, it is characterised in that described deflector (7) includes air deflector, water outlet stator (4), some support guide vanes (5), some stators (6);The most some support guide vanes (5) are tightly connected formation diversion shell, and the cavity between outer wall and the inwall of resistance to pressure cylinder (14) of described diversion shell forms pressure chamber;Being provided with stator (6) in described support guide vane (5), described stator (6) matches with impeller (11);The water inlet of described deflector (7) is provided with air deflector, and the delivery port of described deflector (7) is provided with water outlet stator (4).
4. vertical multi-stage centrifugal pump as claimed in claim 2 or claim 3, it is characterized in that, described water inlet-outlet segment (8) includes inlet segment (8-1), water exit end (8-2) and deflector (8-3), and described inlet segment (8-1) separates with water exit end (8-2) diversed plate (8-3);Described water inlet-outlet segment (8) is arranged on base (9) top/water inlet-outlet segment (8) and is set to one with base (9), the center of water inlet-outlet segment (8) is provided with bearing block (8-4), and the bottom of described pump shaft (12) is installed in bearing block (8-4) by bearing.
5. vertical multi-stage centrifugal pump as claimed in claim 2 or claim 3, it is characterised in that the top of described resistance to pressure cylinder (14) is sealedly connected with fairing cap (18);Being equipped with pull bar (2) between described fairing cap (18) and water inlet-outlet segment (8), described pull bar (2) is placed in resistance to pressure cylinder (14) outward.
6. vertical multi-stage centrifugal pump as claimed in claim 5, it is characterized in that, described fairing cap (18) is provided with centre bore and diversion cavity, and described pump shaft (12) is provided with sealing device (3) through the centre bore of fairing cap (18), pump shaft (12) with the gap location of fairing cap (18);Described diversion cavity connects deflector (7) inside and pressure chamber simultaneously.
7. vertical multi-stage centrifugal pump as claimed in claim 6, it is characterized in that, described fairing cap (18) top is provided with support (1), and the top of support (1) is provided with motor (17), and the output shaft of described motor (17) is connected with pump shaft (12) by shaft coupling.
8. according to the vertical multi-stage centrifugal pump described in Claims 2 or 3 or 6 or 7, it is characterized in that, the cross section installing impeller (11) and impeller spacer (13) position on described pump shaft (12) is non-circular, and it is shaped as polygon or by circular arc and the combined shaped of straight line or circular arc and the combined shaped of circular arc.
CN201620082470.1U 2016-01-28 2016-01-28 Vertical multi -stage centrifugal pump Expired - Fee Related CN205533264U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620082470.1U CN205533264U (en) 2016-01-28 2016-01-28 Vertical multi -stage centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620082470.1U CN205533264U (en) 2016-01-28 2016-01-28 Vertical multi -stage centrifugal pump

Publications (1)

Publication Number Publication Date
CN205533264U true CN205533264U (en) 2016-08-31

Family

ID=56771395

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620082470.1U Expired - Fee Related CN205533264U (en) 2016-01-28 2016-01-28 Vertical multi -stage centrifugal pump

Country Status (1)

Country Link
CN (1) CN205533264U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194758A (en) * 2016-08-31 2016-12-07 上海中韩杜科泵业制造有限公司 A kind of vertical multi-stage centrifugal pump of universal connection support
CN106438377A (en) * 2016-09-29 2017-02-22 周宁县善长祥农业机械研发有限公司 Vertical multi-stage double-valve centrifugal pump and use method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194758A (en) * 2016-08-31 2016-12-07 上海中韩杜科泵业制造有限公司 A kind of vertical multi-stage centrifugal pump of universal connection support
CN106438377A (en) * 2016-09-29 2017-02-22 周宁县善长祥农业机械研发有限公司 Vertical multi-stage double-valve centrifugal pump and use method thereof

Similar Documents

Publication Publication Date Title
CN205533264U (en) Vertical multi -stage centrifugal pump
CN106089728A (en) A kind of horizontal multi-stage centrifugal pump
CN2816434Y (en) Vortex-adding chamber structure for water pump
CN104100537A (en) LNG (liquefied natural gas) immersed centrifugal pump
CN201377436Y (en) Structure for double-suction multistage horizontal split pump
CN203906303U (en) Multi-stage, vertical, efficient and anti-cavitation cryogenic pump
CN203130527U (en) Single-stage vertical direct-connected centrifugal pump with guide vanes
CN206190540U (en) Multistage water pump
CN202500816U (en) Open type rotary jet pump
CN106321448B (en) Multi-stage water pump and its application method
CN101644271A (en) New structure of self-priming centrifugal pump
CN201546969U (en) Stainless steel horizontal-type end suction multi-stage centrifugal pump
CN101210567A (en) Horizontal multistage stainless steel centrifugal pump
CN202091245U (en) Impeller and guide blade structure of deep well pump
CN106640670B (en) Vertical suction multi-stage pipeline pump and its application method
CN202833186U (en) Double-suction multi-stage horizontal-type mid-split pump
CN208057428U (en) Easy-to-dismount centrifugal pump
CN206268082U (en) Radial direction return guide vane deep well pump
CN105020143A (en) Internal recycling self-balancing multi-stage centrifugal water pump
CN201401338Y (en) Horizontal multi-stage stainless steel centrifugal pump
CN204003508U (en) A kind of LNG latent liquid type centrifugal pump
CN106122030A (en) A kind of rated lift type variable horizontal type multi-stage pump
CN102192158A (en) Vertical no-sealed self-sucking pump
CN106545496B (en) Sleeping suction multi-stage pipeline pump
CN2625623Y (en) Novel centrifugal water pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160831

Termination date: 20170128

CF01 Termination of patent right due to non-payment of annual fee