CN105317687A - Double-suction self-balancing multiple-stage centrifugal pump - Google Patents
Double-suction self-balancing multiple-stage centrifugal pump Download PDFInfo
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- CN105317687A CN105317687A CN201510674448.6A CN201510674448A CN105317687A CN 105317687 A CN105317687 A CN 105317687A CN 201510674448 A CN201510674448 A CN 201510674448A CN 105317687 A CN105317687 A CN 105317687A
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- China
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- impeller
- hand member
- centrifugal pump
- stage centrifugal
- inlet segment
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Abstract
A double-suction self-balancing multiple-stage centrifugal pump comprises a pump shaft and a first bearing gland. A first impeller, a second impeller and a third impeller are sequentially arranged at the right end of a bush; a first partition plate, a second partition plate and a water outlet section are sequentially arranged at the right end of a water inlet section. A primary-stage guide vane is arranged between the first partition plate and the first impeller; a secondary-stage guide vane is arranged between the second partition plate and the second impeller; tail-stage guide vanes are arranged at the both ends of the water outlet section. Orifice sleeve pressing plates are fixed to the two ends of the middle portion of the water outlet section, and an orifice sleeve is arranged between the water outlet section and the outer circle of the pump shaft. The third impeller, the second impeller and the first impeller are sequentially arranged on the right portion of the orifice sleeve; the second partition plate, the first partition plate and a secondary water inlet section are sequentially arranged at the right end of the water outlet section. The primary-stage guide vane is arranged between the first partition plate and the first impeller, and the secondary-stage guide vane is arranged between the second partition plate and the second impeller. The double-suction self-balancing multiple-stage centrifugal pump is simple in structure and reasonable in design, improves the working efficiency, and has an excellent protection effect on equipment when media containing particles are conveyed.
Description
Technical field
The present invention relates to industrial pump field, refer more particularly to a kind of double suction self-balanced multiple-stage centrifugal pump.
Background technique
In prior art, all impellers of single-suction multilevel segmental centrifugal pump are arranged on a pump shaft equidirectionally, and impeller at different levels only has front seal ring, carry out balancing axial thrust with Balance disc or balancing drum always; After disc Long-Time Service in bearing housing, the impurity in fluid can precipitate, and is not easy to cleaning, is taken up impure fluid and lubricate bearing, can affect the working life of bearing by disc; When containing the medium of particle from inlet segment to secondary inlet segment conveying, damage can be caused to the sealing mechanism in stage casing, reduce the working life of pump.
Summary of the invention
The object of the invention is to solve above-mentioned Problems existing.
The present invention is achieved in that a kind of double suction self-balanced multiple-stage centrifugal pump, comprise pump shaft, clutch shaft bearing gland, drive end is provided with and mother between clutch shaft bearing gland and pump shaft cylindrical, clutch shaft bearing gland right-hand member is connected with drive end bearing case, the inner right-hand member of drive end bearing case has been bolted the second bearing gland, second bearing gland right-hand member is provided with water retaining ring, drive end bearing case right-hand member is connected with inlet segment, inlet segment left end is connected with mechanical seal, lining is provided with between inlet segment and pump shaft, it is characterized in that: described lining right-hand member is disposed with the first impeller, second impeller, trilobed wheel, described inlet segment right-hand member is disposed with the first dividing plate, second partition, water exit end, first-level guide blade is provided with between first dividing plate and the first impeller, secondary stator is provided with between second partition and the second impeller, described water exit end two ends are provided with final stage stator, in the middle part of water exit end, two ends are fixed with orifice sleeve pressing plate, are provided with orifice sleeve between water exit end and pump shaft cylindrical, and orifice sleeve right part is disposed with trilobed wheel, second impeller, the first impeller, described water exit end right-hand member is disposed with second partition, the first dividing plate, secondary inlet segment, is provided with first-level guide blade between the first dividing plate and the first impeller, is provided with secondary stator between second partition and the second impeller, described secondary inlet segment right-hand member is connected with non-driven-end bearing case, and the inner left end of non-driven-end bearing case is connected with the 3rd bearing gland, and non-driven-end bearing case right-hand member is connected with the 4th bearing gland.
Further, the first described impeller and inlet segment are provided with the first choma, are provided with the second choma between the second impeller and the first dividing plate, and is provided with the 3rd choma between trilobed wheel and second partition.
Further, between described first-level guide blade and the first impeller, be provided with the first guide blade sleeve, between secondary stator and the second impeller, be provided with the second guide blade sleeve.
Further, described orifice sleeve inner ring annular is provided with several arc-like rows cinder holes.
Further, described non-driven-end bearing case lower end has been bolted asbestos slate, the vexed plate of bearing housing.
Further, the first described dividing plate and second partition cylindrical are provided with pipe plug.
Further, described orifice sleeve adopts high abrasion, high hardness material.
Structure of the present invention is simple, reasonable in design, improves working efficiency, has fabulous protective action when conveying contains the medium of particle to equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of orifice sleeve in the present invention;
In figure: 1, pump shaft, 2, drive end is also female, 3, clutch shaft bearing gland, 4, drive end bearing case, 5, second bearing gland, 6, water retaining ring, 7, mechanical seal, 8, inlet segment, 9, lining, 10, first impeller, 11, first-level guide blade, 12, first dividing plate, 13, second impeller, 14, secondary stator, 15, second partition, 16, trilobed wheel, 17, final stage stator, 18, water exit end, 19, orifice sleeve, 20, secondary inlet segment, 21, non-driven-end bearing case, 22, 3rd bearing gland, 23, asbestos slate, 24, the vexed plate of bearing housing, 25, four bearing glands, 26, pipe plug, 27, orifice sleeve pressing plate, 28, 3rd choma, 29, second guide blade sleeve, 30, second choma, 31, first guide blade sleeve, 32, first choma.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to accompanying drawing, a kind of double suction self-balanced multiple-stage centrifugal pump, comprise pump shaft 1, clutch shaft bearing gland 3, drive end is provided with and mother 2 between clutch shaft bearing gland 3 and pump shaft 1 cylindrical, clutch shaft bearing gland 3 right-hand member is connected with drive end bearing case 4, the inner right-hand member of drive end bearing case 4 has been bolted the second bearing gland 5, second bearing gland 5 right-hand member is provided with water retaining ring 6, drive end bearing case 4 right-hand member is connected with inlet segment 8, inlet segment 8 left end is connected with mechanical seal 7, lining 9 is provided with between inlet segment 8 and pump shaft 1, it is characterized in that: lining 9 right-hand member is disposed with the first impeller 10, second impeller 13, trilobed wheel 16, described inlet segment 8 right-hand member is disposed with the first dividing plate 12, second partition 15, water exit end 18, first-level guide blade 11 is provided with between first dividing plate 12 and the first impeller 10, secondary stator 14 is provided with between second partition 15 and the second impeller 13, described water exit end 18 two ends are provided with final stage stator 17, in the middle part of water exit end 18, two ends are fixed with orifice sleeve pressing plate 27, orifice sleeve 19 is provided with between water exit end 18 and pump shaft 2 cylindrical, orifice sleeve 19 right part is disposed with trilobed wheel 16, second impeller 13, first impeller 10, described water exit end 18 right-hand member is disposed with second partition 15, first dividing plate 12, is provided with first-level guide blade 11 between secondary inlet segment 20, first dividing plate 12 and the first impeller 10, is provided with secondary stator 14 between second partition 12 and the second impeller 13, described secondary inlet segment 20 right-hand member is connected with non-driven-end bearing case 21, and the inner left end of non-driven-end bearing case 21 is connected with the 3rd bearing gland 22, and non-driven-end bearing case 21 right-hand member is connected with the 4th bearing gland 25, the first described impeller 10 is provided with between the first choma 32, second impeller 13 and the first dividing plate 12 with inlet segment 18 and is provided with the second choma 30, is provided with the 3rd choma 28 between trilobed wheel 16 and second partition 15, be provided with the first guide blade sleeve 31 between described first-level guide blade 11 and the first impeller 10, between secondary stator 14 and the second impeller 13, be provided with the second guide blade sleeve 29, described orifice sleeve 19 inner ring annular is provided with several arc-like rows cinder holes 191, described non-driven-end bearing case 21 lower end has been bolted asbestos slate 23, the vexed plate 24 of bearing housing, the first described dividing plate 12 is provided with pipe plug 26 with second partition 15 cylindrical, described orifice sleeve 19 adopts high abrasion, high hardness material.
The present invention has following beneficial effect:
(1), the diameter of axle is when being greater than 60mm, and product adopts the design of taper shaft extension, and coupling, bearing, sealing easy installation and removal are for ease of maintenaince.
(2) orifice sleeve, between hyperbaric chamber and low-pressure cavity adopts multi-head spiral sealing, is provided with mud hole simultaneously, while raising the efficiency, has several good protective action when conveying contains the medium of particle to equipment.
(3), impeller is arranged symmetrically with, axial force automatic balancing, and without special balanced controls, product reliability increases greatly; Adopt sliding assembling structure to location, namely ensure that the axial force that each impeller produces is evenly distributed on axle, ultimate stress can not be occurred in a certain cross section, remove and install also very convenient simultaneously.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; some improvements and modifications can also be made; these improvements and modifications also should be considered as protection scope of the present invention, and all available prior art of each constituent element not clear and definite in the present embodiment is realized.
Claims (7)
1. a double suction self-balanced multiple-stage centrifugal pump, comprise pump shaft (1), clutch shaft bearing gland (3), drive end is provided with and female (2) between clutch shaft bearing gland (3) and pump shaft (1) cylindrical, clutch shaft bearing gland (3) right-hand member is connected with drive end bearing case (4), drive end bearing case (4) inner right-hand member has been bolted the second bearing gland (5), second bearing gland (5) right-hand member is provided with water retaining ring (6), drive end bearing case (4) right-hand member is connected with inlet segment (8), inlet segment (8) left end is connected with mechanical seal (7), lining (9) is provided with between inlet segment (8) and pump shaft (1), it is characterized in that: described lining (9) right-hand member is disposed with the first impeller (10), second impeller (13), trilobed wheel (16), described inlet segment (8) right-hand member is disposed with the first dividing plate (12), second partition (15), water exit end (18), first-level guide blade (11) is provided with between first dividing plate (12) and the first impeller (10), secondary stator (14) is provided with between second partition (15) and the second impeller (13), described water exit end (18) two ends are provided with final stage stator (17), two ends, water exit end (18) middle part are fixed with orifice sleeve pressing plate (27), orifice sleeve (19) is provided with between water exit end (18) and pump shaft (2) cylindrical, orifice sleeve (19) right part is disposed with trilobed wheel (16), second impeller (13), first impeller (10), described water exit end (18) right-hand member is disposed with second partition (15), the first dividing plate (12), secondary inlet segment (20), be provided with first-level guide blade (11) between first dividing plate (12) and the first impeller (10), between second partition (12) and the second impeller (13), be provided with secondary stator (14), described secondary inlet segment (20) right-hand member is connected with non-driven-end bearing case (21), and non-driven-end bearing case (21) inner left end is connected with the 3rd bearing gland (22), and non-driven-end bearing case (21) right-hand member is connected with the 4th bearing gland (25).
2. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1, it is characterized in that: described the first impeller (10) and inlet segment (18) are provided with the first choma (32), be provided with the second choma (30) between second impeller (13) and the first dividing plate (12), between trilobed wheel (16) and second partition (15), be provided with the 3rd choma (28).
3. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1, it is characterized in that: be provided with the first guide blade sleeve (31) between described first-level guide blade (11) and the first impeller (10), between secondary stator (14) and the second impeller (13), be provided with the second guide blade sleeve (29).
4. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1, is characterized in that: described orifice sleeve (19) inner ring annular is provided with several arc-like rows cinder holes (191).
5. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1, is characterized in that: described non-driven-end bearing case (21) lower end has been bolted asbestos slate (23), the vexed plate of bearing housing (24).
6. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1, is characterized in that: described the first dividing plate (12) and second partition (15) cylindrical are provided with pipe plug (26).
7. a kind of double suction self-balanced multiple-stage centrifugal pump according to claim 1 or 4, is characterized in that: described orifice sleeve (19) adopts high abrasion, high hardness material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674448.6A CN105317687A (en) | 2015-10-19 | 2015-10-19 | Double-suction self-balancing multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674448.6A CN105317687A (en) | 2015-10-19 | 2015-10-19 | Double-suction self-balancing multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105317687A true CN105317687A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510674448.6A Pending CN105317687A (en) | 2015-10-19 | 2015-10-19 | Double-suction self-balancing multiple-stage centrifugal pump |
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| CN (1) | CN105317687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268307A (en) * | 2018-10-24 | 2019-01-25 | 浙江朗庆智能科技有限公司 | A kind of centrifugal urea dispenser pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203189321U (en) * | 2013-03-04 | 2013-09-11 | 重庆西泉泵业股份有限公司 | Adjustable axial force balancing structure for multistage centrifugal pump with back-to-back impellers |
| CN204025175U (en) * | 2014-06-07 | 2014-12-17 | 江苏飞翔泵业制造有限公司 | Twin-stage self-balanced multiple-stage centrifugal pump |
| CN204984924U (en) * | 2015-08-27 | 2016-01-20 | 江苏飞翔泵业制造有限公司 | Double suction self -balancing multistage centrifugal pump |
-
2015
- 2015-10-19 CN CN201510674448.6A patent/CN105317687A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203189321U (en) * | 2013-03-04 | 2013-09-11 | 重庆西泉泵业股份有限公司 | Adjustable axial force balancing structure for multistage centrifugal pump with back-to-back impellers |
| CN204025175U (en) * | 2014-06-07 | 2014-12-17 | 江苏飞翔泵业制造有限公司 | Twin-stage self-balanced multiple-stage centrifugal pump |
| CN204984924U (en) * | 2015-08-27 | 2016-01-20 | 江苏飞翔泵业制造有限公司 | Double suction self -balancing multistage centrifugal pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268307A (en) * | 2018-10-24 | 2019-01-25 | 浙江朗庆智能科技有限公司 | A kind of centrifugal urea dispenser pump |
| CN109268307B (en) * | 2018-10-24 | 2019-05-21 | 浙江朗庆智能科技有限公司 | A kind of centrifugal urea dispenser pump |
| CN109973401A (en) * | 2018-10-24 | 2019-07-05 | 浙江朗庆智能科技有限公司 | Based on centrifugal urea pump |
| CN110094339A (en) * | 2018-10-24 | 2019-08-06 | 浙江朗庆智能科技有限公司 | Centrifugal urea pump |
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Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |