CN205446054U - Multistage sectional type centrifugal pump is inhaled to balanced type list - Google Patents
Multistage sectional type centrifugal pump is inhaled to balanced type list Download PDFInfo
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- CN205446054U CN205446054U CN201521132380.0U CN201521132380U CN205446054U CN 205446054 U CN205446054 U CN 205446054U CN 201521132380 U CN201521132380 U CN 201521132380U CN 205446054 U CN205446054 U CN 205446054U
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- fixedly mounted
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- suction casing
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Abstract
The utility model discloses a multistage sectional type centrifugal pump is inhaled to balanced type list, main content is: the rotor fitting up has elastic pin coupling, the water -cooling chamber cap is installed on the centre bore left end face of left suction casing, left side suction casing right flank is installed on the left surface in left side middle section, the right flank of two discharge casings is installed on the left surface in right side middle section, the right side bearing parts install on the right flank of the packing box body, left side stator passes through the stator cover and installs on the rotor part, left side final stage stator is installed in two discharge casings on the left end face, right side final stage stator is installed in two discharge casings on the right -hand member face, left side sealing ring is installed in the centre bore of two discharge casings, right side stator is installed on the rotor part, mechanical seal press cover installs in the right mounting hole of the packing box body, the installation is organic between the outer face of cylinder of rotor parts and the mechanical seal press cover recess seals, the machine seals the wash tub pipe part and is connected with mechanical seal press cover and left side middle section respectively, left side seal cover fixed mounting is in left suction casing centre bore.
Description
Technical field
This utility model relates to centrifugal pump technical field, specifically, particularly to a kind of equilibrated type single-suction multilevel stagewise centrifugal pump.
Background technology
Multistage subsection formula centrifugal pump structure is simple, be widely used, but in use relatively low due to its impeller both sides fluid pressure skewness, i.e. wheel cap side fluid pressure, wheel disc side fluid pressure is higher, therefore can produce an axial force parallel with pump shaft axis, impeller eye is pointed in its direction.
The method of axial force in multi-stage centrifugal pump balance mainly has following several at present: be 1. arranged symmetrically with vane-wheel method, but the quantity that this method requires impeller must be even number, and centrifugal pump runner is complicated, and pump body structure is complicated；2. use balancing drum structure in impeller wheel disc side, but balancing drum both sides pressure reduction is relatively big, cause balancing drum gap location to there is bigger liquid leakage so that the volumetric efficiency of centrifugal pump is relatively low；Simultaneously under the effect of axial force of impeller at different levels, power transmission shaft is under depression bar state operation, and serious wear at choma, service life is low.3. using autobalance dish structure in impeller wheel disc side, but use 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 so that shaft end seal easily lost efficacy；The axial float of axle system rotor easily causes the abrasion between rotor part and stator part simultaneously；Additionally the axial float of axle system rotor makes centrifugal pump startup, stopping or flow lift change when, can produce impact and collision, increase part fretting wear, balancing frame is caused to be easily damaged, need often to change, reduce the service life of centrifugal pump, increase the maintenance cost of centrifugal pump.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of equilibrated type single-suction multilevel stagewise centrifugal pump is provided, it can significantly 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.
This utility model solves its technical problem and be the technical scheme is that a kind of equilibrated type single-suction multilevel stagewise centrifugal pump, including 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 sealing ring, double Spit Sections, right final stage stator, right stator, right suction casing, right sealing ring, right bearing parts, machine sealed cover, machine seals, stuffing box body, machine sealing flushing water tube component, outer circulation cooling water pipe parts, right sealing shroud, O-ring seals, guide blade sleeve, left sealing shroud, turnbuckle and water-cooled chamber cap；nullDescribed rotor part left end is installed with elastic dowel pin shaft coupling，Described left bearing parts are fixedly mounted on the left surface of left suction casing by screw，Described water-cooled chamber cap is fixedly mounted on the centre bore 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 double 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 is fixedly mounted in double Spit Section on left side，Described right final stage stator is fixedly mounted in double Spit Section on right side，Described left sealing ring is fixedly mounted in the centre bore of double Spit Section by screw，Described right stator is fixedly mounted on rotor part，Described right sealing ring is fixedly mounted on the right side of right suction casing by screw，Described machine sealed cover is fixedly mounted in the right installing hole of stuffing box body，Between described rotor part external cylindrical surface and machine sealed cover groove, organic envelope is installed，Described machine sealing flushing water tube component is connected with machine sealed cover and stage casing, left side respectively，Described outer circulation cooling water pipe parts are connected with left suction casing and stuffing box body respectively，Described right sealing shroud is fixedly mounted in the centre bore of stage casing, right side，Described left sealing shroud is fixedly mounted in left suction casing centre bore，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, it is provided with cylinder roller bearing.
As preferably, in described right bearing parts, it is 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 installing hole location and installation is on the cylinder boss of double Spit Sections.
As preferably, between end face and the left installing hole bottom surface in stage casing, right side of described pair of Spit Section cylinder boss, O-ring seals is installed.
This utility model compared with prior art has the advantage that the axial force significantly reducing 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 conformation, can be with automatically balancing axial force；Applied range, is primarily adapted for use in 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 are similar to other liquid of clear water.By conveying liquid maximum temperature 110 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural front view of a kind of detailed description of the invention of the present utility model；
Fig. 2 is the structure left view of a kind of detailed description of the invention of the present utility model.
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, 8-left final stage stator, the left sealing ring of 9-, the double Spit Section of 10-, 11-right final stage stator, the right stator of 12-, the right suction casing of 13-, the right sealing ring of 14-, 15-right bearing parts, 16-machine sealed cover, 17-machine seals, 18-stuffing box body, 19-machine sealing flushing water tube component, 20-outer circulation cooling water pipe parts, the right sealing shroud of 21-, 22-O shape sealing ring, 23-guide blade sleeve, the left sealing shroud of 24-, 25-turnbuckle, 26-water-cooled chamber cap.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment describes this utility model detailed description of the invention:
Embodiment, as depicted in figs. 1 and 2, a kind of equilibrated type single-suction multilevel stagewise centrifugal pump, including 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 sealing ring 9, double Spit Sections 10, right final stage stator 11, right stator 12, right suction casing 13, right sealing ring 14, right bearing parts 15, machine sealed cover 16, machine envelope 17, stuffing box body 18, machine sealing flushing water tube component 19, outer circulation cooling water pipe parts 20, right sealing shroud 21, O-ring seals 22, guide blade sleeve 23, left sealing shroud 24, turnbuckle 25 and water-cooled chamber cap 26；nullDescribed 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 centre bore 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 double 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 is fixedly mounted in double Spit Section 10 on left side，Described right final stage stator 11 is fixedly mounted in double Spit Section 10 on right side，Described left sealing ring 9 is fixedly mounted in the centre bore of double Spit Section 10 by screw，Described right stator 12 is fixedly mounted on rotor part 2，Described right sealing 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 installing hole of stuffing box body 18，Organic envelope 17 is installed between described rotor part 2 external cylindrical surface and machine sealed cover 16 groove，Described machine sealing flushing water tube component 19 is connected with machine sealed cover 16 and stage casing, left side 7 respectively，Described outer circulation cooling water pipe parts 20 are connected with left suction casing 4 and stuffing box body 18 respectively，Described right sealing shroud 21 is fixedly mounted in the centre bore of stage casing 7, right side，Described left sealing shroud 24 is fixedly mounted in left suction casing 4 centre bore，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, it is provided with cylinder roller bearing in described left bearing parts 3.
Preferably, it is provided with back-to-back angular contact ball bearing 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 installing hole location and installation is on the cylinder boss of double Spit Sections 10.
Above in conjunction with accompanying drawing, this utility model preferred implementation is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of without departing from this utility model objective.
Many other can be made without departing from spirit and scope of the present utility model to change and remodeling.Should be appreciated that this utility model is not limited to specific embodiment, scope of the present utility model is defined by the following claims.
Claims (5)
1. an equilibrated type single-suction multilevel stagewise centrifugal pump, it is characterised in that: include 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 sealing ring, double Spit Section, right final stage stator, right stator, right suction casing, right sealing ring, right bearing parts, machine sealed cover, machine envelope, stuffing box body, machine sealing flushing water tube component, outer circulation cooling water pipe parts, right sealing shroud, O-ring seals, guide blade sleeve, left sealing shroud, turnbuckle and water-cooled chamber cap；nullDescribed rotor part left end is installed with elastic dowel pin shaft coupling，Described left bearing parts are fixedly mounted on the left surface of left suction casing by screw，Described water-cooled chamber cap is fixedly mounted on the centre bore 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 double 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 is fixedly mounted in double Spit Section on left side，Described right final stage stator is fixedly mounted in double Spit Section on right side，Described left sealing ring is fixedly mounted in the centre bore of double Spit Section by screw，Described right stator is fixedly mounted on rotor part，Described right sealing ring is fixedly mounted on the right side of right suction casing by screw，Described machine sealed cover is fixedly mounted in the right installing hole of stuffing box body，Between described rotor part external cylindrical surface and machine sealed cover groove, organic envelope is installed，Described machine sealing flushing water tube component is connected with machine sealed cover and stage casing, left side respectively，Described outer circulation cooling water pipe parts are connected with left suction casing and stuffing box body respectively，Described right sealing shroud is fixedly mounted in the centre bore of stage casing, right side，Described left sealing shroud is fixedly mounted in left suction casing centre bore，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 equilibrated type single-suction multilevel stagewise centrifugal pump as claimed in claim 1, it is characterised in that: it is provided with cylinder roller bearing in described left bearing parts.
3. a kind of equilibrated type single-suction multilevel stagewise centrifugal pump as claimed in claim 1, it is characterised in that: it is provided with back-to-back angular contact ball bearing in described right bearing parts.
4. a kind of equilibrated type single-suction multilevel stagewise centrifugal pump as claimed in claim 1, it is characterised in that: described pair of Spit Section right flank is provided with cylinder boss, and stage casing, right side left installing hole location and installation is on the cylinder boss of double Spit Sections.
5. a kind of equilibrated type single-suction multilevel stagewise centrifugal pump as claimed in claim 4, it is characterised in that: between end face and the left installing hole bottom surface in stage casing, right side of described pair of Spit Section cylinder boss, O-ring seals is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132380.0U CN205446054U (en) | 2015-12-31 | 2015-12-31 | Multistage sectional type centrifugal pump is inhaled to balanced type list |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132380.0U CN205446054U (en) | 2015-12-31 | 2015-12-31 | Multistage sectional type centrifugal pump is inhaled to balanced type list |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446054U true CN205446054U (en) | 2016-08-10 |
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ID=56599755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132380.0U Expired - Fee Related CN205446054U (en) | 2015-12-31 | 2015-12-31 | Multistage sectional type centrifugal pump is inhaled to balanced type list |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402137A (en) * | 2015-12-31 | 2016-03-16 | 镇江江大泵业科技有限公司 | Balanced type single-suction multistage sectional centrifugal pump |
-
2015
- 2015-12-31 CN CN201521132380.0U patent/CN205446054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402137A (en) * | 2015-12-31 | 2016-03-16 | 镇江江大泵业科技有限公司 | Balanced type single-suction multistage sectional centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212100 No. 69 Heng Road, Xincheng Town, Zhenjiang, Jiangsu, Dantu Patentee after: Jiangsu HENGWEI fluid technology Limited by Share Ltd Address before: 212100 No. 69 Heng Road, Xincheng Town, Zhenjiang, Jiangsu, Dantu Patentee before: Zhenjiang Great Pump Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20171231 |