CN107313942A - The single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off - Google Patents
The single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off Download PDFInfo
- Publication number
- CN107313942A CN107313942A CN201710426610.1A CN201710426610A CN107313942A CN 107313942 A CN107313942 A CN 107313942A CN 201710426610 A CN201710426610 A CN 201710426610A CN 107313942 A CN107313942 A CN 107313942A
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- CN
- China
- Prior art keywords
- impeller
- ring
- pump
- seal
- stage double
- 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.)
- Pending
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Classifications
-
- 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
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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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 present invention relates to the single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off, it includes being socketed with impeller and the pump housing in the middle part of pump shaft, seal member is provided between the pump housing and impeller, the both sides of the pump housing are provided with pump cover, stuffing seal and mechanically-sealing apparatus are combined with respectively at the pump cover of both sides, stuffing seal and mechanically-sealing apparatus are coordinated by seal gusset and pump cover and impeller, and seal gusset and pump cover gap for 1.5 3mm, with impeller inlet when the side of cooperation is with pump cover seam it is concordant；Seal member includes the impeller ring being arranged on the outside of impeller, and impeller ring and impeller are locked by the lock-screw being radially arranged；Casing ring is provided with the outside of impeller ring, casing ring is arranged on the pump housing；The present invention realizes the effect of anti-cavitation by improving seal gusset, while preventing impeller ring from coming off by unique impeller sealing arrangement, it is ensured that water pump is safely and smoothly run.
Description
Technical field
The present invention relates to middle-opening pump field, and in particular to the single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off.
Background technology
Single-stage double-suction middle-opening pump is also referred to as single-stage double-suction middle-opening formula centrifugal pump, and single-stage double-suction middle-opening pump general action is in needs
Big flow operating area, flow is big, and lift does not need too high recirculated water and feedwater application scenario, the metallurgical row of such as large-scale steel mill
Plumbing, heating, plant drainage, farmland water drainage, air-conditioning system are irrigated in industry (Tang Gang, Anshan iron and steel plant, Mei Gang), steam power plant and power station, city
System water supply, the feedwater of mine fire-fighting system, refinery, mine, chemical plant, textile industry, paper mill, oil field, airport construction
Etc. all kinds of hydraulic engineerings.Traditional single-stage double-suction middle-opening pump seal body gusset and pump cover, impeller inlet side have between enough excessively streams
Gap, but it is different according to model, and its cavitation performance also has larger difference, and the original anti-cavitation performance of some pumps is just fine, but also has
Pump anti-cavitation performance it is very poor, particularly once partially operating mode run when, cavitation easily occurs for pump.
Meanwhile, in traditional design, the positioning method of impeller ring is the mode of junction of the edges of two sheets of paper screw fastened, junction of the edges of two sheets of paper screw
Hole is needed on the gap coordinated in impeller and impeller ring with a hole is made, due to impeller and impeller ring material difference,
There is definitely operation difficulty in this drilling；After junction of the edges of two sheets of paper screw fastened, due to impeller ring both sides in pump operation
The effect of pressure differential and centrifugal force, easily makes junction of the edges of two sheets of paper toner screw, so as to cause impeller ring to deviate from and damage water pump.
The content of the invention
In view of the shortcomings of the prior art, the invention provides the single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off, pass through
The effect that seal gusset realizes anti-cavitation is improved, while prevent impeller ring from coming off by unique impeller sealing arrangement,
It ensure that water pump is safely and smoothly run.
To realize object above, the present invention is achieved by the following technical programs：The single-stage that a kind of anti-seal ring comes off
Double entry middle-opening pump, it includes being socketed with the middle part of anterior bearing block, rear axle bearing and the pump shaft through them, described pump shaft
Impeller and with impeller coordinate the pump housing, and the pump housing by fastener with front portion bearing block and rear axle bearing be connected, described pump
Seal member is provided between body and impeller, the both sides of the described pump housing are provided with pump cover, the pump cover of both sides to be combined with respectively
Stuffing seal and mechanically-sealing apparatus, described stuffing seal and mechanically-sealing apparatus pass through seal gusset and pump
Lid and impeller coordinate, and side and pump cover that the gap of seal gusset and pump cover coordinates for 1.5-3mm, with impeller inlet side are stopped
Mouth side is concordant；Described stuffing seal is connected with the flush pipe set on the pump housing；Described seal member includes impeller outer
The impeller ring that side is arranged, described impeller ring and impeller is locked by the lock-screw being radially arranged；Described leaf
Casing ring is provided with the outside of wheel sealing ring, described casing ring is arranged on the pump housing.
Preferably, described impeller ring and impeller are interference fit, described impeller ring and casing ring
Coordinate for gap.
Preferably, detection hole is offered on described casing ring.
Preferably, described lock-screw includes being provided with one on the outside of main body, the position that main body coordinates with impeller ring
Layer rubber layer.
Preferably, it is provided with the inside of the flange position of described lock-screw on stopper slot, described stopper slot and impeller
The spacing ring of setting coordinates.
Preferably, it is provided with the outside of the flange of described lock-screw and tightens block.
Beneficial effects of the present invention are：
1st, make seal on the basis of original increasing is widened at the gusset on seal, the gap with pump cover is in 1.5-
3mm, with impeller inlet while coordinate side with pump cover seam while it is concordant, improve the anti-cavitation performance of single-stage double-suction middle-opening pump.
2nd, impeller and impeller ring are locked by the clamping screw being radially arranged, pine will not occurs because of wheel rotation
It is dynamic, effectively it can prevent impeller ring from coming off, it is ensured that water pump is safely and smoothly run, and also assembling is simple；Simultaneously can be with
Do not limited by the impeller of special substance.
3rd, impeller ring and impeller can improve sealing effectiveness, impeller ring and pump housing sealing using interference fit
Ring is coordinated using gap, can reduce abrasion.
4th, the design of detection hole, can observe the gap between casing ring and impeller ring, and then realize more preferable
Cooperation installation effect.
5th, the design of rubber layer, can make impeller ring and clamping screw coordinate even closer, further prevent impeller
Sealing ring comes off.
6th, the cooperation of spacing ring and stopper slot, further enhances the locking effect of lock-screw, prevents screw from moving, and
And do not interfere with the installation of screw.
7th, the design of block is turned, tightening for lock-screw is greatly facilitated, improves efficiency of assembling.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for the single-stage double-suction middle-opening pump that anti-seal ring comes off；
Fig. 2 is the structural representation of seal member；
The partial enlarged drawing that Fig. 3 is B in Fig. 2；
Fig. 4 is the structural representation of clamping screw.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment：
As Figure 1-Figure 4, the single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off, it includes anterior bearing block 2, rear portion
Bearing block 11 and the pump shaft 10 through them, the middle part of described pump shaft 110 are socketed with impeller and the pump housing 3 coordinated with impeller,
And the pump housing 3 is connected by fastener 1 with anterior bearing block 2 and rear axle bearing 11, is set between the described pump housing 3 and impeller 43
There is seal member 7, the both sides of the described pump housing 3 are provided with pump cover 5, the pump cover 5 of both sides is combined with stuffing seal 4 respectively
With mechanically-sealing apparatus 9, described stuffing seal 4 and mechanically-sealing apparatus 9 passes through seal gusset 12 and pump cover 5 and leaf
Wheel 43 coordinates, and the gap of seal gusset 12 and pump cover 5 is 1.5-3mm, the side coordinated with the inlet side of impeller 43 and pump cover 5
Seam side is concordant；Described stuffing seal 4 is connected with the flush pipe 6 set on the pump housing 3；Described seal member 7 includes
The impeller ring 42 that the outside of impeller 43 is arranged, described impeller ring 42 and impeller 43 pass through the lock-screw that is radially arranged
44 lockings；The outside of described impeller ring 42 is provided with casing ring 41, and described casing ring 41 is arranged on pump
On body 3.
Preferably, described impeller ring 42 and impeller 43 are interference fit, described impeller ring 42 and the pump housing
Sealing ring 41 coordinates for gap.
Preferably, detection hole 4101 is offered on described casing ring 41.
Preferably, described lock-screw 44 includes main body 4401, the position that main body 4401 coordinates with impeller ring 42
Outside is provided with one layer of rubber layer 4402.
Preferably, stopper slot 4403, described stopper slot are provided with the inside of the flange position of described lock-screw 44
4403 spacing ring 4301 with being set on impeller 43 coordinates.
Preferably, it is provided with the outside of the flange of described lock-screw 44 and tightens block 4404.
When specifically used, casing ring 41 has first been opened up into detection hole 4101, casing ring 41 is then loaded onto into pump
Impeller ring 42, is enclosed on impeller 43 by body 3 afterwards, and coordinates corresponding hole position, afterwards loads onto lock-screw 44, and
Rubber layer 4402 is fitted close with impeller ring 42, be fitted close stopper slot 4403 and spacing ring 4301, then will dress
Impeller 43 and the pump housing 3 after good are assembled, and whole single-stage double-suction middle-opening pump is assembled according to Fig. 1, in the operation process of pump,
Good anti-cavitation can be played by the seal gusset 12 of specific setting.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. the single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off, it is characterised in that it includes anterior bearing block (2), rear axle
Impeller and the pump coordinated with impeller are socketed with the middle part of bearing (11) and the pump shaft (10) through them, described pump shaft (110)
Body (3), and the pump housing (3) is connected by fastener (1) with anterior bearing block (2) and rear axle bearing (11), the described pump housing (3)
Seal member (7) is provided between impeller (43), the both sides of the described pump housing (3) are provided with pump cover (5), the pump cover of both sides
(5) place is combined with stuffing seal (4) and mechanically-sealing apparatus (9) respectively, and described stuffing seal (4) and machinery are close
Seal apparatus (9) is coordinated by seal gusset (12) and pump cover (5) and impeller (43), and seal gusset (12) and pump cover (5)
Gap for 1.5-3mm, with impeller (43) inlet side cooperation side it is concordant with pump cover (5) seam side；Described packing seal
Device (4) is connected with the flush pipe (6) set on the pump housing (3)；Described seal member (7) includes what is be arranged on the outside of impeller (43)
Impeller ring (42), described impeller ring (42) and impeller (43) is locked by the lock-screw (44) being radially arranged；
Casing ring (41) is provided with the outside of described impeller ring (42), described casing ring (41) is arranged on the pump housing
(3) on.
2. the single-stage double-suction middle-opening pump that anti-seal ring as claimed in claim 1 comes off, it is characterised in that described impeller seals
Ring (42) is interference fit with impeller (43), and described impeller ring (42) and casing ring (41) coordinates for gap.
3. the single-stage double-suction middle-opening pump that anti-seal ring as claimed in claim 2 comes off, it is characterised in that described pump housing sealing
Detection hole (4101) is offered on ring (41).
4. the single-stage double-suction middle-opening pump that anti-seal ring as claimed in claim 1 comes off, it is characterised in that described lock-screw
(44) include being provided with one layer of rubber layer on the outside of main body (4401), the position that main body (4401) coordinates with impeller ring (42)
(4402)。
5. the single-stage double-suction middle-opening pump that anti-seal ring as claimed in claim 4 comes off, it is characterised in that described lock-screw
(44) be provided with stopper slot (4403) on the inside of flange position, described stopper slot (4403) with set on impeller (43) it is spacing
Ring (4301) coordinates.
6. the single-stage double-suction middle-opening pump that anti-seal ring as claimed in claim 5 comes off, it is characterised in that described lock-screw
(44) it is provided with the outside of flange and tightens block (4404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426610.1A CN107313942A (en) | 2017-06-08 | 2017-06-08 | The single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426610.1A CN107313942A (en) | 2017-06-08 | 2017-06-08 | The single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313942A true CN107313942A (en) | 2017-11-03 |
Family
ID=60182182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426610.1A Pending CN107313942A (en) | 2017-06-08 | 2017-06-08 | The single-stage double-suction middle-opening pump that a kind of anti-seal ring comes off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829939A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | The single-stage double-suction middle-opening pump that anti-seal ring comes off |
| CN113513498A (en) * | 2021-07-16 | 2021-10-19 | 杭州南丰精工科技有限公司 | Water pump impeller with seal structure |
| CN114320928A (en) * | 2021-12-21 | 2022-04-12 | 嘉利特荏原泵业有限公司 | Centrifugal pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN205639052U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Prevent turn on pump in single -stage double suction that sealing ring drops |
| CN205639054U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Turn on pump in anti -cavitation single -stage double suction |
| CN205639051U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Turn on pump in single -stage double suction with good sealing performance |
| US20170051746A1 (en) * | 2014-12-10 | 2017-02-23 | Jiangsu Yamei Pumps Group Co. Ltd | Corrosion-resistant and wear-resistant chemical centrifugal pump |
-
2017
- 2017-06-08 CN CN201710426610.1A patent/CN107313942A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170051746A1 (en) * | 2014-12-10 | 2017-02-23 | Jiangsu Yamei Pumps Group Co. Ltd | Corrosion-resistant and wear-resistant chemical centrifugal pump |
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN205639052U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Prevent turn on pump in single -stage double suction that sealing ring drops |
| CN205639054U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Turn on pump in anti -cavitation single -stage double suction |
| CN205639051U (en) * | 2016-05-18 | 2016-10-12 | 湖南南方长河泵业有限公司 | Turn on pump in single -stage double suction with good sealing performance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829939A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | The single-stage double-suction middle-opening pump that anti-seal ring comes off |
| CN113513498A (en) * | 2021-07-16 | 2021-10-19 | 杭州南丰精工科技有限公司 | Water pump impeller with seal structure |
| CN113513498B (en) * | 2021-07-16 | 2024-02-02 | 杭州南丰精工科技有限公司 | Water pump impeller with sealing structure |
| CN114320928A (en) * | 2021-12-21 | 2022-04-12 | 嘉利特荏原泵业有限公司 | Centrifugal pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |
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| RJ01 | Rejection of invention patent application after publication |