CN204783844U - Horizontal multistage centrifugal pump - Google Patents
Horizontal multistage centrifugal pump Download PDFInfo
- Publication number
- CN204783844U CN204783844U CN201520503578.9U CN201520503578U CN204783844U CN 204783844 U CN204783844 U CN 204783844U CN 201520503578 U CN201520503578 U CN 201520503578U CN 204783844 U CN204783844 U CN 204783844U
- Authority
- CN
- China
- Prior art keywords
- pump
- water
- seal
- horizontal multi
- stage centrifugal
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000001816 cooling Methods 0.000 claims description 21
- 238000005299 abrasion Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000012856 packing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a horizontal multistage centrifugal pump. Including the pump body, locate the pump body the section of intaking, go out water section and multistage middle section, the pump shaft cools off balancing unit, connect respectively in the bearing device at the both ends of pump shaft to and corresponding sealing device, the section of intaking sets up respectively with play water section and is axial and radial, the section of intaking one end bearing device locates in the intake antrum of this section of intaking through corresponding bearing retainer. This horizontal multistage centrifugal pump simple structure, reasonable, operation, balanced, stable, reliable, long service life, operating efficiency is high.
Description
Technical field
The utility model relates to a kind of water pump, particularly relates to a kind of horizontal multi-stage centrifugal pump.
Background technique
Existing horizontal multi-stage centrifugal pump complex structure, operation troubles rate is high, and in axial thrust balancing devices, balance disk wear is fast, and maintenance is inconvenient.Packing seal is adopted in axial inlet segment and water exit end two ends Seal cage, the leakage rate of water is large, cause the waste of water, user uses water pump to increase drainage means, filler and axle sleeve quick abrasion, change frequent, especially use packing seal at pump water inlet end, owing to there is gap between filler and axle sleeve, easily cause air to enter in pump, cause and affect pump sump amount, time serious, cause water pump not inhale water.Moreover water pump rotor supporting two ends adopt roller bearing, the temperature rise of long-term running bearing, easily damages bearing, reduces water pump working life.
Model utility content
The purpose of this utility model is exactly the deficiency existed for prior art, provides a kind of horizontal multi-stage centrifugal pump.This horizontal multi-stage centrifugal pump is simple and reasonable for structure, runs, balances, stable, reliably, long service life, operational efficiency is high.
The technological scheme of the utility model horizontal multi-stage centrifugal pump comprises the pump housing, be located at the inlet segment of the pump housing, water exit end and multistage stage casing, pump shaft, cooling Equilibrator, be connected to the bearing means at the two ends of described pump shaft, and corresponding seal arrangement, described inlet segment and water exit end arrange in axial and radial respectively, and the described bearing means of inlet segment one end is located in the water-inlet cavity of this inlet segment by corresponding bearing bracket.
Described seal arrangement comprises the Seal cage between the corresponding site of the mechanical seal sleeve being located at the pump housing and pump shaft or the pump housing and pump shaft, and to be located between described Seal cage and pump shaft, also or be located at described Seal cage and the mechanical seal device between pump shaft and the pump housing.
Described mechanical seal device comprises the mechanical seal sleeve be located between described pump shaft and Seal cage, and is located at the seal ring that this mechanical seal axle puts.
Described cooling Equilibrator also comprises and one is opened on the pump housing, is connected to water passage hole between the respective cavities in multistage stage casing and the Seal cage of the corresponding of the pump housing.
Described water passage hole is located at by between the impeller ring set of water exit end and the pump housing.
Described cooling Equilibrator comprises the water port be connected with the Seal cage of seal arrangement, and is connected to the balance cooling tube of bearing means of water exit end one end of this water port and pump shaft.
Described balance cooling tube is provided with reduction valve.
Its back shroud of impeller of the described pump housing is provided with some equalizing orifices.
Described bearing means by drive motor one end comprises the bearing support being provided with cooling water chamber, is located at the rolling bearing on this bearing support; Described bearing means by inlet segment one end comprises the abrasion-resistant slide bearing be connected to by bearing bracket on the pump housing, and is located at the stainless steel axle sleeve on described abrasion-resistant slide bearing.
The described bearing means of the pump shaft of water exit end one end is connected with described inlet segment through a return pipe.
The utility model horizontal multi-stage centrifugal pump is due to the rationality of its structure, and its axial water sucting mode is realized by special structure, installs and uses convenient, and under equal conditions, its inflow is large, and entry resistance is little, has increased substantially the operational efficiency of water pump; The improvement of its sealing configuration and axial thrust balancing devices structure then improves sealing effect, extends the working life of associated sealing components, solves the flimsy problem of Balance disc in existing water pump; And the improvement of cooling structure, make cooling effectiveness high, effective, structure is simple, is easy to realize, temperature when both having reduced bearing working, makes again pump axial force obtain balance.
Accompanying drawing explanation
Fig. 1 is the utility model horizontal multi-stage centrifugal pump one example structure schematic diagram.
Embodiment
In order to understand the technical solution of the utility model further, now by reference to the accompanying drawings the utility model is described further by following examples:
As shown in Figure 1, the horizontal multi-stage centrifugal pump of the present embodiment comprises the pump housing, is located at the inlet segment 1 on the pump housing, water exit end 4 and multistage stage casing 2 respectively, pump shaft 8, is connected to the bearing means at the two ends of pump shaft 8, cooling Equilibrator, back shroud of impeller 5, and corresponding seal arrangement etc.The drive motor connected with pump shaft 8 is the horizontal drive motor of 1450 ~ 3000r/minr, and the axle sleeve coordinated with pump shaft 8 is stainless steel material.
The axis of inlet segment 1 and the coaxial one end being located at pump shaft of pump shaft, the Way out of water exit end 4 and the corresponding side being axially located at the pump housing mutually in 90 degree of inlet segment 1.
The bearing means being positioned at the pump shaft 8 of the water-inlet cavity 1a of inlet segment 1 comprises the abrasion-resistant slide bearing 7 be connected to by bearing bracket 6 on the pump housing, is located at the stainless steel axle sleeve 23 between abrasion-resistant slide bearing 7 and pump shaft 8.Abrasion-resistant slide bearing 7 can be abrasive rubber submerged bearing, utilizes lubrication with clean water in pump.Bearing means by the pump shaft of drive motor one end comprises the bearing support being provided with cooling water chamber 14, is located at the rolling bearing 15 on this bearing support.
Its cooling Equilibrator comprise the corresponding site by water exit end being opened in the pump housing water port 22, be opened in by water passage hole (or crossing water space) 21a between the impeller ring set 21 of water exit end and the pump housing and balance cooling tube 13 etc., water port 22 is connected with the Seal cage 25 by water exit end being located at the pump housing, balance cooling tube 13 is connected between the cooling water chamber 14 of the bearing means of drive motor one end of water port 22 and pump shaft, and balance cooling tube 13 is provided with reduction valve 13a.Water passage hole 21a is located at by between water exit end impeller ring set 21 and impeller 5 wheel hub.
Seal arrangement comprises the Seal cage 25 leaned between water exit end position and pump shaft being located at the pump housing, and is located at the mechanical seal device between Seal cage 25 and pump shaft 8; Its mechanical seal device comprises the mechanical seal sleeve 11 be located between pump shaft 8 and Seal cage 25, and is located at the seal ring in this mechanical seal sleeve 11, and its seal ring comprises rotary packing ring 12 and corresponding stationary seal ring.The mechanical seal sleeve 11 coordinated with pump shaft 8 is formed for stainless steel material.
Mechanical seal device also comprises stationary seat 26, one end of the bearing means of the drive motor of stationary seat 26 and Seal cage 25." O " shape seal ring 27 is connected with between mechanical seal sleeve 11 and pump shaft 8.
3 ~ 6 equalizing orifices 10 are offered in the position near water inlet of the back shroud of impeller 5 of the pump housing; It can make the high pressure water formed between cover plate and stator after the impeller be expelled back into water intake by equalizing orifice 10, balances part axial force.
The cooling water chamber 14 of the bearing means of the pump shaft 8 of drive motor one end is connected with the water-inlet cavity of inlet segment 1 through a return pipe 24.
The mechanical seal chamber mesohigh water of water exit end has flowed in the cooling water chamber of corresponding bearing means through water port and balance cooling tube and reduction valve, cooling is carried out to this bearing means and reduces temperature, get back in inlet segment water-inlet cavity by return pipe again, to reach balance portion responsive to axial force.
In another embodiment of the utility model, its rolling bearing by the bearing means of the pump shaft of drive motor one end is stainless steel rolling bearing.All the other structures of this example can with above-described embodiment roughly the same.
Horizontal multi-stage centrifugal pump of the present utility model has the axial thrust balancing devices of special structure, and change stuffing box body part and be sealed into mechanical seal, good sealing effect, No leakage water, working life extends at double.Reduction valve is installed to reduce the pressure of high pressure water to bearing cooling chamber in balance water-cooling tube.
Claims (10)
1. a horizontal multi-stage centrifugal pump, comprise the pump housing, be located at the inlet segment of the pump housing, water exit end and multistage stage casing, pump shaft, cooling Equilibrator, is connected to the bearing means at the two ends of described pump shaft, and corresponding seal arrangement, it is characterized in that described inlet segment and water exit end arrange in axial and radial respectively, the described bearing means of inlet segment one end is located in the water-inlet cavity of this inlet segment by corresponding bearing bracket.
2. horizontal multi-stage centrifugal pump according to claim 1, it is characterized in that described seal arrangement comprises the Seal cage between the corresponding site of the mechanical seal sleeve being located at the pump housing and pump shaft or the pump housing and pump shaft, and to be located between described Seal cage and pump shaft, also or be located at described Seal cage and the mechanical seal device between pump shaft and the pump housing.
3. horizontal multi-stage centrifugal pump according to claim 2, is characterized in that described mechanical seal device comprises the mechanical seal sleeve be located between described pump shaft and Seal cage, and is located at the seal ring that this mechanical seal axle puts.
4. horizontal multi-stage centrifugal pump according to claim 1, is characterized in that described cooling Equilibrator also comprises and one is opened on the pump housing, is connected to water passage hole between the respective cavities in multistage stage casing and the Seal cage of the corresponding of the pump housing.
5. horizontal multi-stage centrifugal pump according to claim 4, is characterized in that described water passage hole is located at by between the impeller ring set of water exit end and the pump housing.
6. horizontal multi-stage centrifugal pump according to claim 1, is characterized in that described cooling Equilibrator comprises the water port be connected with the Seal cage of seal arrangement, and is connected to the balance cooling tube of bearing means of water exit end one end of this water port and pump shaft.
7. horizontal multi-stage centrifugal pump according to claim 6, is characterized in that described balance cooling tube is provided with reduction valve.
8. horizontal multi-stage centrifugal pump according to claim 1, is characterized in that its back shroud of impeller of the described pump housing is provided with some equalizing orifices.
9. horizontal multi-stage centrifugal pump according to claim 1, is characterized in that the described bearing means by drive motor one end comprises the bearing support being provided with cooling water chamber, is located at the rolling bearing on this bearing support; Described bearing means by inlet segment one end comprises the abrasion-resistant slide bearing be connected to by bearing bracket on the pump housing, and is located at the stainless steel axle sleeve on described abrasion-resistant slide bearing.
10. horizontal multi-stage centrifugal pump according to claim 1, is characterized in that the described bearing means of the pump shaft of water exit end one end is connected with described inlet segment through a return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503578.9U CN204783844U (en) | 2015-07-13 | 2015-07-13 | Horizontal multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503578.9U CN204783844U (en) | 2015-07-13 | 2015-07-13 | Horizontal multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783844U true CN204783844U (en) | 2015-11-18 |
Family
ID=54523900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520503578.9U Expired - Fee Related CN204783844U (en) | 2015-07-13 | 2015-07-13 | Horizontal multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783844U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989673A (en) * | 2015-07-13 | 2015-10-21 | 江西省万载水泵有限责任公司 | Horizontal multi-stage centrifugal pump |
| CN105626544A (en) * | 2016-03-22 | 2016-06-01 | 广东凌霄泵业股份有限公司 | Horizontal type multistage centrifugal pump |
| CN105952683A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | Pump head structure of horizontal water pump |
| CN105952650A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | High-strength multistage horizontal water pump |
| CN105952680A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | Seal seat mechanism of horizontal water pump |
| CN107044424A (en) * | 2017-04-26 | 2017-08-15 | 冯长捷 | A kind of water pump engine balance pipe cooling system |
| WO2023151109A1 (en) * | 2022-02-10 | 2023-08-17 | 浙江水泵总厂有限公司 | Cooling structure of water pump, and cooling system provided with same |
-
2015
- 2015-07-13 CN CN201520503578.9U patent/CN204783844U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989673A (en) * | 2015-07-13 | 2015-10-21 | 江西省万载水泵有限责任公司 | Horizontal multi-stage centrifugal pump |
| CN104989673B (en) * | 2015-07-13 | 2018-03-13 | 江西省万载水泵有限责任公司 | horizontal multi-stage centrifugal pump |
| CN105626544A (en) * | 2016-03-22 | 2016-06-01 | 广东凌霄泵业股份有限公司 | Horizontal type multistage centrifugal pump |
| CN105952683A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | Pump head structure of horizontal water pump |
| CN105952650A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | High-strength multistage horizontal water pump |
| CN105952680A (en) * | 2016-05-31 | 2016-09-21 | 浙江南元泵业有限公司 | Seal seat mechanism of horizontal water pump |
| CN107044424A (en) * | 2017-04-26 | 2017-08-15 | 冯长捷 | A kind of water pump engine balance pipe cooling system |
| CN107044424B (en) * | 2017-04-26 | 2023-07-18 | 芜湖长捷航空动力科技有限责任公司 | Balanced pipe cooling system of water pump engine |
| WO2023151109A1 (en) * | 2022-02-10 | 2023-08-17 | 浙江水泵总厂有限公司 | Cooling structure of water pump, and cooling system provided with same |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |