CN205446159U - High -efficient double suction centrifugal pump structure - Google Patents
High -efficient double suction centrifugal pump structure Download PDFInfo
- Publication number
- CN205446159U CN205446159U CN201620145652.9U CN201620145652U CN205446159U CN 205446159 U CN205446159 U CN 205446159U CN 201620145652 U CN201620145652 U CN 201620145652U CN 205446159 U CN205446159 U CN 205446159U
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- pump
- impeller
- bearing
- shaft
- seal case
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- Expired - Fee Related
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Abstract
The utility model provides a high -efficient double suction centrifugal pump structure, belongs to spiral case double suction centrifugal pump technical field. The sealed box top of this centrifugal pump is equipped with the pump cover, the below is equipped with the pump body, both ends are equipped with the housing plate, a bearing body is still respectively connected at the both ends of sealed box, the pump shaft passes sealed box, the both ends of pump shaft are supported by single row radial thrust ball bearing and the cylindrical roller bearing that is arranged in two bearing bodies respectively, impeller and pump shaft adoption key -type connection, respectively be equipped with an axle sleeve and dustproof dish on the pump shaft of impeller both sides, two impeller rings set up the both sides at the impeller respectively, the impeller ring is compressed tightly between the pump cover and the pump body. This centrifugal pump adopts the interior closed structure of external -open, and the change that significantly reduces, maintenance dismantlement work volume are only demolishd bearing cover and can be investigated the maintenance. Adopt the two bayonet types of split sealed between impeller ring and the impeller, impeller ring department has reduced the spill losses, has reduced the volumetric loss of pump, has improved the work efficiency of pump.
Description
Technical field
This utility model relates to a kind of efficient double-suction centrifugal pump structure, belongs to spiral case double suction centrifugal pump technical field.
Background technology
Opening volute type centrifugal pump is widely used in the fields such as field irrigation, power station, industrial water supply system, waterworks, plumbing pumping plant, refrigeration and heating system, papermaking, ship's fire fighting.Double entry pump symmetrical configuration, better performances, but it is all the time big due to repair demolition workload, the bodily form of the biggest flow (more than 3000m3/h) is huge, bearing replacing and the quite inconvenience of maintenance investigation, and user scene lacks boom hoisting so that install, dismantle and cannot be carried out, make assembly precision not reach pre-provisioning request.Impeller ring directly coordinates with impeller, dielectric leakage at impeller ring, and gas leak phenomenon occurs therewith, and vibration, noise inevitably increase, until exceeding standard.
Summary of the invention
In order to overcome problems of the prior art, this utility model provides a kind of efficient double-suction centrifugal pump structure, and this centrifugal pump should use closed type structure in external-open, greatly reduces replacing, repair demolition workload, only removes bearing gland and can carry out investigation maintenance.Use point lobe dual-mouth formula to seal between impeller ring and impeller, reduce leakage loss at impeller ring, reduce the volumetric loss of pump, the work efficiency of pump can be improved.
nullThe technical solution adopted in the utility model is: a kind of efficient double-suction centrifugal pump structure，It includes pump cover、Impeller、The pump housing and pump shaft，It also includes two impeller rings、One seal case and two bearing bodies，Described seal case be arranged over pump cover，Lower section is provided with the pump housing，It is respectively arranged at the two ends with a housing plate，The two ends of seal case respectively connect a bearing body，Described pump shaft passes seal case，The two ends of pump shaft are respectively by single row angular contact ball bearing and a cylinder roller bearing support of two settings the most positive and negative being positioned in two bearing bodies，The bearing body of the single row angular contact ball bearing of two settings the most positive and negative uses clutch shaft bearing gland to close，The bearing body arranging cylinder roller bearing uses the second bearing gland to close，It is positioned at pump cover、Impeller in seal case and the pump housing uses bonded with pump shaft，The pump shaft of impeller both sides is respectively provided with an axle sleeve and dust pan，Said two impeller ring is separately positioned on the both sides of impeller，Impeller ring is pressed between pump cover and the pump housing.
The beneficial effects of the utility model are: the seal case of this efficient double-suction centrifugal pump is arranged over pump cover, lower section is provided with the pump housing, it is respectively arranged at the two ends with a housing plate, the two ends of seal case respectively connect a bearing body, pump shaft passes seal case, the two ends of pump shaft are supported by the single row angular contact ball bearing being positioned in two bearing bodies and cylinder roller bearing respectively, it is positioned at pump cover, impeller in seal case and the pump housing uses bonded with pump shaft, the pump shaft of impeller both sides is respectively provided with an axle sleeve and dust pan, two impeller rings are separately positioned on the both sides of impeller, impeller ring is pressed between pump cover and the pump housing.This centrifugal pump uses closed type structure in external-open, greatly reduces replacing, repair demolition workload, only removes bearing gland and can carry out investigation maintenance.Use point lobe dual-mouth formula to seal between impeller ring and impeller, decrease leakage loss at impeller ring, decrease the volumetric loss of pump, improve the work efficiency of pump.
Accompanying drawing explanation
Fig. 1 is a kind of efficient double-suction centrifugal pump structure figure.
Fig. 2 is the outline drawing of a kind of efficient double-suction centrifugal pump.
Fig. 3 is the front view of impeller ring.
Fig. 4 is the A-A view in Fig. 3.
In figure: 1, pump cover, 2, impeller, 3, impeller ring, 3a, boss, 3b, projection, 4, seal case, 5, bearing body, 6, the pump housing, 7, axle sleeve, 8, dust pan, 9, single row angular contact ball bearing, 9a, cylinder roller bearing, 10, clutch shaft bearing gland, 10a, the second bearing gland, 11, pump shaft, 12, round nut, 13, round nut stop washer, 14, housing plate.
Detailed description of the invention
Fig. 1,2 structure charts showing a kind of efficient double-suction centrifugal pump.In figure, this efficient double-suction centrifugal pump structure includes pump cover 1, impeller 2, the pump housing 6, pump shaft 3, seal case 4 of 11, two impeller rings and two bearing bodies 5.Seal case 4 be arranged over pump cover 1, lower section is provided with the pump housing 6, is respectively arranged at the two ends with a housing plate 14, and the two ends of seal case 4 respectively connect a bearing body 5.Pump shaft 11 is through seal case 4, the two ends of pump shaft 11 are respectively by single row angular contact ball bearing 9 and a cylinder roller bearing 9a support of two settings the most positive and negative being positioned in two bearing bodies 5, the bearing body 5 of the single row angular contact ball bearing 9 of two settings the most positive and negative uses clutch shaft bearing gland 10 to close, the bearing body 5 arranging cylinder roller bearing 9a uses the second bearing gland 10a to close, the impeller 2 being positioned in pump cover 1, seal case 4 and the pump housing 6 uses bonded with pump shaft 11, is respectively provided with an axle sleeve 7 and dust pan 8 on the pump shaft 11 of impeller 2 both sides.Two impeller rings 3 are separately positioned on the both sides of impeller 2, and impeller ring 3 is pressed between pump cover 1 and the pump housing 6.
Fig. 3,4 structure charts showing impeller ring.Impeller ring 3 uses point lobe dual-mouth formula to seal structure, and the inner side of impeller ring 3 is provided with the protruding 3b of twice and the fit depressions on impeller, and the outside of impeller ring 3 lower half is provided with the boss 3a of one and the fit depressions on the pump housing.
Use above-mentioned technical scheme, bearing body structure uses enclosed in external-open, bearing, bearing gland are assembled by both sides non-gear evil end respectively, bearing is installed, is changed and keep in repair offer conveniently by this structure, without integral demounting, time saving and energy saving, it is greatly improved assembling, maintenance efficiency, can operate by dust pan if desired.And becoming overall structure inside bearing body, for relative complete machine, rigidity is more preferable.Bearing gland is connected with bearing body bolt and is connected from the through finite length that becomes, and single bearing body structure is increased rigidity, can suitably cut down bearing body wall thickness if desired, it is ensured that rigidity and cost-effective.
Impeller ring uses a point lobe dual-mouth form, reduce the leakage loss herein caused, improve pump own volume efficiency, increase sealing, directly improve gas leak phenomenon, open double suction centrifugal pump self net positive suction head in improving axially so that this pump range of application expands, plateau pressure mal-condition such as low grade can be suitable for.
It addition, buckle-type avoids leakage, gas leakage, it is possible to decrease the vibration caused because of the leakage of rotor position, gas leakage during operation, noise.
Pump drive end uses cylinder roller bearing, owing to drive end is connected with motor by shaft coupling, a large amount of survey datas show, making motor and pump shaft Concentricity tolerance become big owing to installing and running play, in pump operation process, radial load increases, and the radial load that cylinder roller bearing self can bear is big, ensure that the continuous operation of complete machine, service life is long, directly reduces economic loss, has transformation and is worth.
Claims (2)
- null1. an efficient double-suction centrifugal pump structure，It includes pump cover (1)、Impeller (2)、The pump housing (6) and pump shaft (11)，It is characterized in that: further comprising two impeller rings (3)、One seal case (4) and two bearing bodies (5)，Described seal case (4) be arranged over pump cover (1)，Lower section is provided with the pump housing (6)，It is respectively arranged at the two ends with a housing plate (14)，The two ends of seal case (4) respectively connect a bearing body (5)，Described pump shaft (11) passes seal case (4)，The two ends of pump shaft (11) are respectively by single row angular contact ball bearing (9) and cylinder roller bearing (9a) support of two settings the most positive and negative being positioned in two bearing bodies (5)，The bearing body (5) of the single row angular contact ball bearing (9) of two settings the most positive and negative uses clutch shaft bearing gland (10) to close，The bearing body (5) arranging cylinder roller bearing (9a) uses the second bearing gland (10a) to close，It is positioned at pump cover (1)、Impeller (2) in seal case (4) and the pump housing (6) uses bonded with pump shaft (11)，The pump shaft (11) of impeller (2) both sides is respectively provided with an axle sleeve (7) and dust pan (8)，Said two impeller ring (3) is separately positioned on the both sides of impeller (2)，Impeller ring (3) is pressed between pump cover (1) and the pump housing (6).
- A kind of efficient double-suction centrifugal pump structure the most according to claim 1, it is characterized in that: described impeller ring (3) uses point lobe dual-mouth formula to seal structure, the inner side of impeller ring (3) is provided with the projection (3b) of twice and the fit depressions on impeller, and the outside of impeller ring (3) lower half is provided with the boss (3a) of one and the fit depressions on the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145652.9U CN205446159U (en) | 2016-02-28 | 2016-02-28 | High -efficient double suction centrifugal pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620145652.9U CN205446159U (en) | 2016-02-28 | 2016-02-28 | High -efficient double suction centrifugal pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446159U true CN205446159U (en) | 2016-08-10 |
Family
ID=56582582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620145652.9U Expired - Fee Related CN205446159U (en) | 2016-02-28 | 2016-02-28 | High -efficient double suction centrifugal pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150427A (en) * | 2016-12-06 | 2018-06-12 | 上海凯士比泵有限公司 | A kind of preposition booster pump of end odd test |
-
2016
- 2016-02-28 CN CN201620145652.9U patent/CN205446159U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150427A (en) * | 2016-12-06 | 2018-06-12 | 上海凯士比泵有限公司 | A kind of preposition booster pump of end odd test |
| CN108150427B (en) * | 2016-12-06 | 2023-12-12 | 上海凯士比泵有限公司 | End-pumping type front booster pump |
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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 |
Granted publication date: 20160810 Termination date: 20200228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |