CN201539414U - Multi-stage pump - Google Patents
Multi-stage pump Download PDFInfo
- Publication number
- CN201539414U CN201539414U CN2009200659687U CN200920065968U CN201539414U CN 201539414 U CN201539414 U CN 201539414U CN 2009200659687 U CN2009200659687 U CN 2009200659687U CN 200920065968 U CN200920065968 U CN 200920065968U CN 201539414 U CN201539414 U CN 201539414U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- stage
- water exit
- exit end
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a multi-stage centrifugal pump, in particular to an odd multi-stage pump, which comprises bearing bodies, pump covers, a water intake section, a secondary water intake section, a water discharge section, a left impeller, a right impeller, a final-stage impeller, a shaft and a shaft sleeve. Mechanical seal is respectively mounted inside the pump covers at two ends of the pump, the bearing bodies are mounted at two ends of the pump, the drive-end bearing body is equipped with two sets of cylindrical roller bearings, and the non-drive-end bearing body is equipped with two sets of contact ball bearings. The left impeller and the right impeller are respectively positioned on the left side and the right side of the water discharge section in symmetrical arrangement, and the final-stage impeller is mounted inside the water discharge section. The water discharge section is provided with a transverse filter outlet. The final-stage impeller has a double-wear-ring structure. The multi-stage centrifugal pump has the advantages that the bearing bodies are axially fixed, and service life of the mechanical seal is prolonged.
Description
Technical field
The utility model relates to a kind of multistage centrifugal pump, especially the odd number multistage pump.
Background technique
At present, existing single suction, multistage centrifugal pump mostly are that impeller assembles facing one direction, the axial force that produces relies on Balance disc to come balance, the greatest drawback of Cun Zaiing is that axle is in fine motion state (floating axially) all the time like this, when causing in inlet segment and water exit end, installing the tool sealing, be easy to damage mechanical seal.
Summary of the invention
The purpose of this utility model just provides a kind of axle that makes at axial restraint, can fine motion, can not damage the multistage centrifugal pump of mechanical seal.
Main technical schemes of the present utility model is as follows:
A kind of multistage centrifugal pump comprises bearing support, pump cover, inlet segment, secondary inlet segment, water exit end, lobus sinister wheel, lobus dexter wheel, impeller, axle, axle sleeve.In the two ends pump cover of pump mechanical seal is installed, bearing support all is equipped with at the two ends of pump, and the drive end bearing body is equipped with two cover roller bearings, and the non-driven-end bearing body is equipped with two cover contact ball bearings; Lobus sinister wheel and lobus dexter wheel lay respectively at the left and right both sides and the symmetric arrangement of water exit end, and impeller is contained in the water exit end.Have horizontal filtering outlet on the water exit end.Impeller is the twoport ring structure.
The bearing support that the utlity model has pump is at axial restraint, the advantage in the working life of prolonged mechanical Sealing.
Description of drawings
Fig. 1 is the structural representation of the utility model Pyatyi centrifugal pump;
Fig. 2 is the structural representation of the utility model impeller.
Embodiment
Shown in hydraulic performance when design configuration diagram that Fig. 1 the utility model is made the Pyatyi centrifugal pump, the Pyatyi centrifugal pump comprises bearing support 1, pump cover 2, inlet segment 3, secondary inlet segment 8, water exit end 5, lobus sinister wheel 4, lobus dexter wheel 7, impeller 15, axle 9, axle sleeve 10.In the two ends pump cover 2 of pump mechanical seal 12 is installed.Bearing support 1 all is equipped with at the two ends of pump, and the drive end bearing body is equipped with two cover roller bearings 13, and the non-driven-end bearing body is equipped with two socket angles and touches ball bearing 11 and be used for the balance residual axial force.First and second grade lobus sinister wheel 4 and third and fourth grade lobus dexter wheel 7 lay respectively at the left and right both sides and the symmetric arrangement of water exit end 5, the mutual balance of axial force that first and second grade lobus sinister wheel 4 and third and fourth grade impeller 7 are produced.Level V impeller 15 is contained in the water exit end 5, is the twoport ring structure.Have horizontal filtration mouth on the water exit end 5.The liquid that first and second grade lobus sinister wheel 4 extrudes enters secondary intake pipe 8 by transition tube again through the filtration mouth of water exit end 5, extrudes liquid through impeller 15 at last.
Working principle of the present utility model is as follows: the liquid that is transferred enters the left side each grade impeller 4 from the inlet segment 3 of pump and throws away the back and enter second level impeller again by left stator 14, liquid after second level impeller throws away enters secondary inlet segment 8 through the filtration mouth of water exit end 5, now extrudes by lobus dexter wheel shaft 7, right stator 6 and impeller 15 water exit end 5 from pump.
Because 5 impellers are in a basic balance by the axial force that above-mentioned distribution produces, residual axial force is born by two angle contacting collar bearings 11 of anti-drive end, so axle can not produce axial fine motion, has brought good service condition to mechanical seal like this, prolonged the working life of machine envelope.
Claims (3)
1. multistage centrifugal pump, comprise bearing support [1], pump cover [2], inlet segment [3], secondary inlet segment [8], water exit end [5], lobus sinister wheel [4], lobus dexter wheel [7], impeller [15], axle [9], axle sleeve [10], it is characterized in that: in the two ends pump cover [2] of pump mechanical seal [12] is installed, bearing support [1] all is equipped with at the two ends of pump, the drive end bearing body is equipped with two cover roller bearings [13], and the non-driven-end bearing body is equipped with two cover angular contact ball bearings [11]; Lobus sinister wheel [4] and lobus dexter wheel [7] lay respectively at the left and right both sides symmetric arrangement of water exit end [5], and impeller [15] is contained in the water exit end [5].
2. a kind of multistage centrifugal pump as claimed in claim 1 is characterized in that: water exit end has horizontal filtering outlet on [5].
3. a kind of multistage centrifugal pump as claimed in claim 1 is characterized in that: impeller [15] is the twoport ring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200659687U CN201539414U (en) | 2010-03-30 | 2010-03-30 | Multi-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200659687U CN201539414U (en) | 2010-03-30 | 2010-03-30 | Multi-stage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539414U true CN201539414U (en) | 2010-08-04 |
Family
ID=42590866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200659687U Expired - Fee Related CN201539414U (en) | 2010-03-30 | 2010-03-30 | Multi-stage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201539414U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927033A (en) * | 2012-10-28 | 2013-02-13 | 山东双轮股份有限公司 | Pump shaft unloading device for multi-level pump |
| CN106640666A (en) * | 2015-04-20 | 2017-05-10 | 合肥智慧殿投资管理有限公司 | Multi-stage centrifugal pump |
| CN114909294A (en) * | 2022-05-20 | 2022-08-16 | 宜昌市西峡泵业有限公司 | Double-suction high-lift balanced even-stage centrifugal pump and operation method |
-
2010
- 2010-03-30 CN CN2009200659687U patent/CN201539414U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927033A (en) * | 2012-10-28 | 2013-02-13 | 山东双轮股份有限公司 | Pump shaft unloading device for multi-level pump |
| CN106640666A (en) * | 2015-04-20 | 2017-05-10 | 合肥智慧殿投资管理有限公司 | Multi-stage centrifugal pump |
| CN114909294A (en) * | 2022-05-20 | 2022-08-16 | 宜昌市西峡泵业有限公司 | Double-suction high-lift balanced even-stage centrifugal pump and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202348690U (en) | Water pump mechanism of motor hollow rotor shaft | |
| CN201539414U (en) | Multi-stage pump | |
| CN202251107U (en) | Single-level single-suction cantilever-type pipeline pump | |
| CN102116311A (en) | Top-level impeller on condensate extraction pump for nuclear power station | |
| CN201747618U (en) | Dual-suction multistage centrifugal pump | |
| CN206309612U (en) | A kind of vertical single stage Piping Centrifugal Pumps | |
| CN203570643U (en) | Water lubricating sliding bearing device for long shaft pump | |
| CN202500816U (en) | Open type rotary jet pump | |
| CN202031843U (en) | Deep-well large flow quantity multi-section water lift pump | |
| CN201428622Y (en) | Canned electric submersible sewage pump | |
| CN101509490A (en) | Axial force self-balancing multiple stage centrifugal pump | |
| CN203751344U (en) | Direct-connection mechanical machining center belt shaft | |
| CN202040090U (en) | Water pump | |
| CN203441755U (en) | Axial suction type sea water desalination high pressure pump | |
| CN212028074U (en) | Balanced type multistage centrifugal pump | |
| CN2844530Y (en) | Axial-forced balancer of sectional multi-stage pump | |
| CN203685591U (en) | Automatic floating lubrication type high-lift multi-stage pump | |
| CN201083199Y (en) | Single-absorption double-stage centrifugal pump | |
| CN110985396A (en) | Horizontal end-suction multistage centrifugal fire pump with lengthened shaft | |
| CN202001317U (en) | High-lift multistage centrifugal pump | |
| CN201461424U (en) | Pipeline type connecting shaft double-suction pump | |
| CN215213969U (en) | Large-flow long-shaft circulating pump | |
| CN201666261U (en) | Sewage filtering pump | |
| CN201407181Y (en) | Axial force self-balance multi-stage centrifugal pump | |
| CN202301145U (en) | Improved structure of double-flow pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20120330 |