CN105402137A - Balanced type single-suction multistage sectional centrifugal pump - Google Patents
Balanced type single-suction multistage sectional centrifugal pump Download PDFInfo
- Publication number
- CN105402137A CN105402137A CN201511027057.1A CN201511027057A CN105402137A CN 105402137 A CN105402137 A CN 105402137A CN 201511027057 A CN201511027057 A CN 201511027057A CN 105402137 A CN105402137 A CN 105402137A
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- China
- Prior art keywords
- fixedly mounted
- suction
- casing
- stuffing box
- centrifugal pump
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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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
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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 balanced type single-suction multistage sectional centrifugal pump. The balanced type single-suction multistage sectional centrifugal pump is mainly characterized in that an elastic column pin coupling is mounted on a rotor component, a water cooling chamber cover is mounted on the left end surface of a center hole of a left suction section, and the right side surface of the left suction section is mounted on the left side surface of a central section on the left side; the right side surface of a dual-ejection section is mounted on the left side surface of a central section on the right side, and a right bearing component is mounted on the right side surface of a stuffing ring body; a left guide blade is mounted on the rotor component through a guide blade sleeve, a left last-stage guide blade is mounted on the left end surface in the dual-ejection section, and a right last-stage guide blade is mounted on the right end surface in the dual-ejection section; a left sealing ring is mounted in a center hole of the dual-ejection section, and a right guide blade is mounted on the rotor component; a machine sealing press cover is mounted in a right mounting hole of the stuffing ring body, and a machine seal is mounted between an external cylinder surface of the rotor component and a groove of the machine sealing press cover; a machine sealing washing water pipe component is connected with the machine sealing press cover and the central section on the left side; a left sealing sleeve is fixedly mounted in the center hole of the left suction section.
Description
Technical field
The present invention relates to centrifugal pump technical field, specifically, particularly a kind of balance type single-suction multilevel segmented centrifugal pump.
Background technique
Multistage subsection formula centrifugal pump structure is simple, be widely used, but in use due to its impeller both sides fluid pressure skewness, namely wheel cap side fluid pressure is lower, and wheel disc side fluid pressure is higher, therefore can produce one with the axial force of pump shaft axis being parallel, impeller eye is pointed in its direction.
The method of current axial force in multi-stage centrifugal pump balance mainly contains following several: be 1. arranged symmetrically with vane-wheel method, but this method requires that the quantity of impeller must be even number, and centrifugal pump runner is complicated, and pump body structure is complicated; 2. adopt balancing drum structure in impeller wheel disc side, but balancing drum both sides pressure reduction is comparatively large, causes balancing drum gap location to there is larger leak of liquid, make the volumetric efficiency of centrifugal pump lower; Simultaneously under the effect of axial force of impeller at different levels, transmission shaft runs under being in depression bar state, and choma place serious wear, working life is low.3. adopt autobalance dish structure in impeller wheel disc side, but adopt the centrifugal pump shaft system rotor of balancing disc structure must there is certain axial movement value, the axial float of axle system rotor is unfavorable for shaft end seal, and shaft end seal was easily lost efficacy; The axial float of axle system rotor easily causes the wearing and tearing between rotor part and stator part simultaneously; The axial float of axle system rotor makes centrifugal pump when startup, stopping or flow lift are vicissitudinous in addition, can produce and impact and collision, increase part fretting wear, Balance disc is caused easily to damage, need often to change, reduce the working life of centrifugal pump, increase the maintenance expenses of centrifugal pump.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of balance type single-suction multilevel segmented centrifugal pump is provided, it significantly can reduce the axial force of whole pump shaft of centrifugal pump axle system, improve the stress of multistage subsection formula pump shaft of centrifugal pump, improve the life-span of axle system pump shaft.
The technical solution adopted for the present invention to solve the technical problems is: a kind of balance type single-suction multilevel segmented centrifugal pump, comprise elastic dowel pin shaft coupling, rotor part, left bearing parts, left suction casing, balancing pipeline parts, left stator, stage casing, left final stage stator, left seal ring, two Spit Section, right final stage stator, right stator, right suction casing, right seal ring, right bearing parts, machine sealed cover, machine seals, stuffing box body, machine envelope wash tub pipe parts, outer circulation water-cooling tube parts, right stuffing box gland, O-ring seals, guide blade sleeve, left stuffing box gland, turnbuckle and water-cooled chamber cap, described rotor part left end is installed with elastic dowel pin shaft coupling, described left bearing parts are fixedly mounted on by screw on the left surface of left suction casing, described water-cooled chamber cap is fixedly mounted on the center hole left side of left suction casing by screw, described left suction casing right flank is fixedly mounted on the left surface in stage casing, left side, described stage casing, left side right flank is fixedly mounted on the left surface of two Spit Section, the right flank of described pair of Spit Section is fixedly mounted on the left surface in stage casing, right side, the right flank in described stage casing, right side is fixedly mounted on the left surface of stuffing box body, described stuffing box body right flank is fixedly mounted on the left surface of right suction casing, described right bearing parts left surface is fixedly mounted on the right flank of stuffing box body, described balancing pipeline parts one end is connected on left suction casing, the other end is connected on stuffing box body, described left stator is fixedly mounted on rotor part by guide blade sleeve, described left final stage stator to be fixedly mounted in two Spit Section on left side, described right final stage stator to be fixedly mounted in two Spit Section on right side, described left seal ring is fixedly mounted in the center hole of two Spit Section by screw, described right stator is fixedly mounted on rotor part, described right seal ring is fixedly mounted on by screw on the right side of right suction casing, described machine sealed cover is fixedly mounted in the right mounting hole of stuffing box body, between described rotor part external cylindrical surface and machine sealed cover groove, organic envelope is installed, described machine envelope wash tub pipe parts are connected with machine sealed cover and stage casing, left side respectively, described outer circulation water-cooling tube parts are connected with left suction casing and stuffing box body respectively, described right stuffing box gland is fixedly mounted in the center hole of stage casing, right side, described left stuffing box gland is fixedly mounted in left suction casing center hole, described turnbuckle one end is fixedly mounted on left suction casing, the other end is fixedly mounted on right suction casing.
As preferably, in described left bearing parts, be provided with roller bearing.
As preferably, in described right bearing parts, be provided with back-to-back angular contact ball bearing.
As preferably, described pair of Spit Section right flank is provided with cylinder boss, and stage casing, right side left mounting hole location and installation is on the cylinder boss of two Spit Section.
As preferably, between the end face of described pair of Spit Section cylinder boss and the left mounting hole bottom surface in stage casing, right side, O-ring seals is installed.
The present invention compared with prior art has the following advantages: the axial force that significantly can reduce whole pump shaft of centrifugal pump axle system, improves the stress of multistage subsection formula pump shaft of centrifugal pump, improves the life-span of axle system pump shaft; Compact structure, can automatically balancing axial force; Applied range, is mainly applicable to the various occasions that pressure is higher, and it is applicable to carry clear water (impure amount is less than 1%, and granularity is less than 0.1mm) and physicochemical properties to be similar to other liquid of clear water.Be transferred liquid maximum temperature 110 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural front view of a kind of embodiment of the present invention;
Fig. 2 is the structure left view of a kind of embodiment of the present invention.
Description of reference numerals:
1-elastic dowel pin shaft coupling, 2-rotor part, 3-left bearing parts, the left suction casing of 4-, 5-balancing pipeline parts, the left stator of 6-, 7-stage casing, the left final stage stator of 8-, the left seal ring of 9-, the two Spit Section of 10-, the right final stage stator of 11-, the right stator of 12-, the right suction casing of 13-, the right seal ring of 14-, 15-right bearing parts, 16-machine sealed cover, 17-machine seals, 18-stuffing box body, 19-machine envelope wash tub pipe parts, 20-outer circulation water-cooling tube parts, the right stuffing box gland of 21-, 22-O shape seal ring, 23-guide blade sleeve, the left stuffing box gland of 24-, 25-turnbuckle, 26-water-cooled chamber cap.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the invention is described:
Embodiment, as depicted in figs. 1 and 2, a kind of balance type single-suction multilevel segmented centrifugal pump, comprise elastic dowel pin shaft coupling 1, rotor part 2, left bearing parts 3, left suction casing 4, balancing pipeline parts 5, left stator 6, stage casing 7, left final stage stator 8, left seal ring 9, two Spit Section 10, right final stage stator 11, right stator 12, right suction casing 13, right seal ring 14, right bearing parts 15, machine sealed cover 16, machine envelope 17, stuffing box body 18, machine envelope wash tub pipe parts 19, outer circulation water-cooling tube parts 20, right stuffing box gland 21, O-ring seals 22, guide blade sleeve 23, left stuffing box gland 24, turnbuckle 25 and water-cooled chamber cap 26, described rotor part 2 left end is installed with elastic dowel pin shaft coupling 1, described left bearing parts 3 are fixedly mounted on the left surface of left suction casing 4 by screw, described water-cooled chamber cap 26 is fixedly mounted on the center hole left side of left suction casing 4 by screw, described left suction casing 4 right flank is fixedly mounted on the left surface in stage casing 7, left side, described stage casing 7, left side right flank is fixedly mounted on the left surface of two Spit Section 10, the right flank of described pair of Spit Section 10 is fixedly mounted on the left surface in stage casing 7, right side, the right flank in described stage casing 7, right side is fixedly mounted on the left surface of stuffing box body 18, described stuffing box body 18 right flank is fixedly mounted on the left surface of right suction casing 13, described right bearing parts 15 left surface is fixedly mounted on the right flank of stuffing box body 18, described balancing pipeline parts 5 one end is connected on left suction casing 4, the other end is connected on stuffing box body 18, described left stator 6 is fixedly mounted on rotor part 2 by guide blade sleeve 23, described left final stage stator 8 to be fixedly mounted in two Spit Section 10 on left side, described right final stage stator 11 to be fixedly mounted in two Spit Section 10 on right side, described left seal ring 9 is fixedly mounted in the center hole of two Spit Section 10 by screw, described right stator 12 is fixedly mounted on rotor part 2, described right seal ring 14 is fixedly mounted on the right side of right suction casing 13 by screw, described machine sealed cover 16 is fixedly mounted in the right mounting hole of stuffing box body 18, between described rotor part 2 external cylindrical surface and machine sealed cover 16 groove, organic envelope 17 is installed, described machine envelope wash tub pipe parts 19 are connected with machine sealed cover 16 and stage casing, left side 7 respectively, described outer circulation water-cooling tube parts 20 are connected with left suction casing 4 and stuffing box body 18 respectively, described right stuffing box gland 21 is fixedly mounted in the center hole of stage casing 7, right side, described left stuffing box gland 24 is fixedly mounted in left suction casing 4 center hole, described turnbuckle 25 one end is fixedly mounted on left suction casing 4, the other end is fixedly mounted on right suction casing 13.
Preferably, roller bearing is provided with in described left bearing parts 3.
Preferably, back-to-back angular contact ball bearing is provided with in described right bearing parts 15.
Preferably, described pair of Spit Section 10 right flank is provided with cylinder boss, and stage casing, right side 7 left mounting hole location and installation is on the cylinder boss of two Spit Section 10.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above, but the invention is not restricted to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific mode of execution, scope of the present invention is defined by the following claims.
Claims (5)
1. a balance type single-suction multilevel segmented centrifugal pump, is characterized in that: comprise elastic dowel pin shaft coupling, rotor part, left bearing parts, left suction casing, balancing pipeline parts, left stator, stage casing, left final stage stator, left seal ring, two Spit Section, right final stage stator, right stator, right suction casing, right seal ring, right bearing parts, machine sealed cover, machine envelope, stuffing box body, machine envelope wash tub pipe parts, outer circulation water-cooling tube parts, right stuffing box gland, O-ring seals, guide blade sleeve, left stuffing box gland, turnbuckle and water-cooled chamber cap, described rotor part left end is installed with elastic dowel pin shaft coupling, described left bearing parts are fixedly mounted on by screw on the left surface of left suction casing, described water-cooled chamber cap is fixedly mounted on the center hole left side of left suction casing by screw, described left suction casing right flank is fixedly mounted on the left surface in stage casing, left side, described stage casing, left side right flank is fixedly mounted on the left surface of two Spit Section, the right flank of described pair of Spit Section is fixedly mounted on the left surface in stage casing, right side, the right flank in described stage casing, right side is fixedly mounted on the left surface of stuffing box body, described stuffing box body right flank is fixedly mounted on the left surface of right suction casing, described right bearing parts left surface is fixedly mounted on the right flank of stuffing box body, described balancing pipeline parts one end is connected on left suction casing, the other end is connected on stuffing box body, described left stator is fixedly mounted on rotor part by guide blade sleeve, described left final stage stator to be fixedly mounted in two Spit Section on left side, described right final stage stator to be fixedly mounted in two Spit Section on right side, described left seal ring is fixedly mounted in the center hole of two Spit Section by screw, described right stator is fixedly mounted on rotor part, described right seal ring is fixedly mounted on by screw on the right side of right suction casing, described machine sealed cover is fixedly mounted in the right mounting hole of stuffing box body, between described rotor part external cylindrical surface and machine sealed cover groove, organic envelope is installed, described machine envelope wash tub pipe parts are connected with machine sealed cover and stage casing, left side respectively, described outer circulation water-cooling tube parts are connected with left suction casing and stuffing box body respectively, described right stuffing box gland is fixedly mounted in the center hole of stage casing, right side, described left stuffing box gland is fixedly mounted in left suction casing center hole, described turnbuckle one end is fixedly mounted on left suction casing, the other end is fixedly mounted on right suction casing.
2. a kind of balance type single-suction multilevel segmented centrifugal pump as claimed in claim 1, is characterized in that: be provided with roller bearing in described left bearing parts.
3. a kind of balance type single-suction multilevel segmented centrifugal pump as claimed in claim 1, is characterized in that: be provided with back-to-back angular contact ball bearing in described right bearing parts.
4. a kind of balance type single-suction multilevel segmented centrifugal pump as claimed in claim 1, it is characterized in that: described pair of Spit Section right flank is provided with cylinder boss, stage casing, right side left mounting hole location and installation is on the cylinder boss of two Spit Section.
5. a kind of balance type single-suction multilevel segmented centrifugal pump as claimed in claim 4, is characterized in that: be provided with O-ring seals between the end face of described pair of Spit Section cylinder boss and the left mounting hole bottom surface in stage casing, right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027057.1A CN105402137A (en) | 2015-12-31 | 2015-12-31 | Balanced type single-suction multistage sectional centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027057.1A CN105402137A (en) | 2015-12-31 | 2015-12-31 | Balanced type single-suction multistage sectional centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402137A true CN105402137A (en) | 2016-03-16 |
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ID=55467837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511027057.1A Pending CN105402137A (en) | 2015-12-31 | 2015-12-31 | Balanced type single-suction multistage sectional centrifugal pump |
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| Country | Link |
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| CN (1) | CN105402137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893436A (en) * | 2022-06-13 | 2022-08-12 | 江苏亚梅泵业集团有限公司 | Self-balancing multistage pump shaft seal mechanical seal structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201265547Y (en) * | 2008-09-23 | 2009-07-01 | 长沙佳能通用泵业有限公司 | Balancing type single-suction horizontal multiple-stage centrifugal pump |
| CN201671825U (en) * | 2010-05-14 | 2010-12-15 | 上海水泵集团有限公司 | Boiler feed pump |
| CN205446054U (en) * | 2015-12-31 | 2016-08-10 | 镇江江大泵业科技有限公司 | Multistage sectional type centrifugal pump is inhaled to balanced type list |
-
2015
- 2015-12-31 CN CN201511027057.1A patent/CN105402137A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201265547Y (en) * | 2008-09-23 | 2009-07-01 | 长沙佳能通用泵业有限公司 | Balancing type single-suction horizontal multiple-stage centrifugal pump |
| CN201671825U (en) * | 2010-05-14 | 2010-12-15 | 上海水泵集团有限公司 | Boiler feed pump |
| CN205446054U (en) * | 2015-12-31 | 2016-08-10 | 镇江江大泵业科技有限公司 | Multistage sectional type centrifugal pump is inhaled to balanced type list |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893436A (en) * | 2022-06-13 | 2022-08-12 | 江苏亚梅泵业集团有限公司 | Self-balancing multistage pump shaft seal mechanical seal structure |
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Application publication date: 20160316 |