CN101290013A - Vertical self-priming centrifugal pump for ship - Google Patents
Vertical self-priming centrifugal pump for ship Download PDFInfo
- Publication number
- CN101290013A CN101290013A CNA2008101237606A CN200810123760A CN101290013A CN 101290013 A CN101290013 A CN 101290013A CN A2008101237606 A CNA2008101237606 A CN A2008101237606A CN 200810123760 A CN200810123760 A CN 200810123760A CN 101290013 A CN101290013 A CN 101290013A
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- pump
- self
- stator
- pump shaft
- shaft
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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Abstract
The invention discloses a vertical self-priming centrifugal pump for ships, which comprises a pump part, a pipeline, a bracket, a motor and a self-priming device. The self-priming device takes a pump shaft as a power shaft, a radial groove is arranged at the matching section of the pump shaft and the stator and is in clearance fit with two sliding pieces, and a spring is arranged between the two sliding pieces. The pump shaft is eccentrically arranged in the stator, the stator is in sealing fit with the pump shaft through an end cover, the outer wall of the stator is fixed in the bracket, one side of the stator is provided with a radial air suction port and an air exhaust port, the air suction port is connected with a water suction port of the pump part through a pipeline and a connector, the radial end face of a sliding sheet rotating along with the pump shaft is in alternate fit with the inner wall of the stator under the combined action of centrifugal force and a spring to form A, B cavities which are mutually sealed and have alternate volume changes, and negative pressure is formed in the pump part through air suction of the. The self-priming device and the pump are integrated, so that the structure is simple, the self-priming capability is strong, and the self-priming device is suitable for the configuration of vertical centrifugal pumps for ships with various specifications.
Description
Technical field
The present invention relates to a kind of centrifugal water pump, particularly a kind of marine vertical type self-suction centrifugal pump that on pump shaft, is provided with self-priming apparatus.
Background technique
Watercraft engine room is that main auxiliary machine is installed ground concentratedly, because the cabin area is limited, the main auxiliary machine of institute's prestowage is taken up an area of size strict restriction.Vertical centrifugal pump is little with respect to the horizontal centrifugal pump floor space, the plane structure compactness, and just owing to these characteristics, vertical centrifugal pump is widely used in boats and ships confession, the drainage system.But vertical centrifugal pump also has its structural disadvantages, and promptly pump impeller is on liquid level, and the pump startup stage does not possess suction capacity, and existing ship connects the self-priming that self-priming apparatus helps the pump startup stage with vertical centrifugal pump is all outer.Because external self-priming apparatus is made up of entities such as air compressor and drive units, must tie up the limited position of watercraft engine room during installation, and increase programmed sequence of operations and supporting cost.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, propose a kind of compact structure, easy to manufacture, cost of production is low, it is short to form the self-priming process, and does not take the marine vertical type self-suction centrifugal pump of watercraft engine room mounting point.
The present invention is achieved through the following technical solutions technical goal.
Marine vertical type self-suction centrifugal pump comprises pump portion, pipeline, carriage, motor and self-priming apparatus.Its improvements are: described self-priming apparatus is fixedly connected in the carriage, self-priming apparatus is a line shaft with the pump shaft of pump portion, pump shaft is provided with radial groove and two slide plate Spielpassung with the stator section of cooperation, be provided with spring between two slide plates, the pump shaft external diameter is less than diameter of stator bore and eccentric configuration, stator is cooperated with shaft seal by end cap, stator one side is respectively equipped with radial suction and relief opening, intakeport is connected with the water sucking mouth of joint with pump portion by pipeline, replace contact matching with the slide plate of pump shaft high speed rotating radial end face and stator inner wall under centrifugal force and spring acting in conjunction, constitute A, the cavity of two mutual sealings of B and volume alternate.
Above-mentioned self-priming apparatus is directly arranged on the pump shaft, pump shaft and stator are in eccentric situation, two slide plates are under the common promotion of centrifugal force and pressure spring in pump shaft and the stator section of the cooperation radial hole, two slide plate radial outer end faces all the time with the stator inner hole contact matching, slide plate is rotated in pump shaft and produces alternating radial variation in the bore of stator.The bore of intakeport improves efficiency of imbibition greater than the bore of relief opening.
The present invention compared with prior art has following good effect:
1, the self-priming apparatus that is located on the pump shaft is same body structure, does not take pump space outerpace area, takes up an area of few.
2, self-priming apparatus is directly driven by pump shaft, does not need to establish in addition control gear, and is simple to operate.
3, self-priming apparatus is simple in structure, makes easily reliable operation.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention.
Fig. 2 is Figure 1A-A sectional drawing, the axial section structure of diagram self-priming apparatus.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Marine vertical type self-suction centrifugal pump shown in the accompanying drawing 1, it comprises pump portion 1, pipeline 2, carriage 3, motor 4 and self-priming apparatus 5.Described self-priming apparatus 5 is a line shaft with the pump shaft 1.2 of pump portion 1, and pump shaft 1.2 is provided with radial groove with stator 5.1 sections of cooperation, and two slide plates 5.5 place radial groove to be Spielpassung, is provided with pressure spring 5.6 between two slide plates 5.5 and keeps certain thrust.Pump shaft 1.2 off-centre place stator 5.1 inner chambers, and stator 5.1 is sealed and matched by end cap 5.2 and pump shaft 1.2, and stator 5.1 outer walls are fixedly connected in the carriage 3.Stator 5.1 1 sides are provided with radial suction 5.3 and relief opening 5.4, and intakeport 5.3 is connected with the water sucking mouth 1.1 of pump portion 1 with joint 2.1 by pipeline 2.Present embodiment is the CLHZ125-100-17 marine vertical type self-suction centrifugal pump, its flow Q:160m
3/ h, lift H:0.32MPa, rotation speed n: 2900rPm, matched power P:22KW.Starting electrical machinery 4 during practical application, and pump shaft 1.2 is driven at a high speed by motor 4, and slide plate 5.5 is under centrifugal force and pressure spring 5.6 actings in conjunction, and the radial outer end face alternately cooperates with stator 5.1 inwalls, constitute the cavity of two mutual sealings and volume alternate.The bore of present embodiment intakeport is 100mm, the bore of relief opening is 80mm, pump shaft is rotated counterclockwise, the volume in A chamber changes from small to big on the one hand, produce local negative pressure, negative pressure is by the air of pipeline 2 suction pump portions 1 inner chamber, and the volume in B chamber changes the same period from large to small on the other hand, and inhaled air is compressed the back and discharges.Pump shaft 1.2 continues the self-priming apparatus continuous firing that rotation is carried pump, and 1 inner chamber is lower than barometric pressure when pump portion, and water flows under the barometric pressure effect in the pump portion 1 automatically, with the pump impeller of pump shaft 1.2 rotations water is discharged and finishes self-priming, and the realization self-priming time is 41S.
Claims (3)
1, a kind of marine vertical type self-suction centrifugal pump, it comprises pump portion (1), pipeline (2), carriage (3), motor (4) and self-priming apparatus (5); It is characterized in that: described self-priming apparatus (5) is fixedly connected in the carriage (3), self-priming apparatus (5) is a line shaft with the pump shaft (1.2) of pump portion (1), pump shaft (1.2) is provided with radial groove and two slide plates (5.5) Spielpassung with stator (5.1) section of cooperation, be provided with spring (5.6) between two slide plates (5.5), pump shaft (1.2) external diameter is less than stator (5.1) internal diameter and eccentric configuration, stator (5.1) is sealed and matched by end cap (5.2) and pump shaft (1.2), stator (5.1) one sides are respectively equipped with radial suction (5.3) and relief opening (5.4), intakeport (5.3) is connected with the water sucking mouth of joint (2.1) with pump portion (1) by pipeline (2), replace contact matching with the slide plate (5.5) of pump shaft (1.2) high speed rotating radial end face and stator (5.1) inwall under centrifugal force and spring (5.6) acting in conjunction, constitute A, the cavity of two mutual sealings of B and volume alternate.
2, by the described marine vertical type self-suction centrifugal pump of claim 1, it is characterized in that: the bore of the relative aperture relief opening (5.4) of described intakeport (5.3) is big by 20～30%.
3, by the described marine vertical type self-suction centrifugal pump of claim 1, it is characterized in that: described spring (5.6) is a pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101237606A CN101290013A (en) | 2008-05-26 | 2008-05-26 | Vertical self-priming centrifugal pump for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101237606A CN101290013A (en) | 2008-05-26 | 2008-05-26 | Vertical self-priming centrifugal pump for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101290013A true CN101290013A (en) | 2008-10-22 |
Family
ID=40034424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101237606A Pending CN101290013A (en) | 2008-05-26 | 2008-05-26 | Vertical self-priming centrifugal pump for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101290013A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604956A (en) * | 2016-01-27 | 2016-05-25 | 大连罗斯泵业有限公司 | Combined type efficient self-sucking pump |
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
| CN111720334A (en) * | 2020-06-02 | 2020-09-29 | 江苏罗地亚泵业有限公司 | Leakage-free full-power sealing type vertical self-priming pump |
| CN112145437A (en) * | 2020-09-30 | 2020-12-29 | 徐国华 | Self-suction single-stage pump |
-
2008
- 2008-05-26 CN CNA2008101237606A patent/CN101290013A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604956A (en) * | 2016-01-27 | 2016-05-25 | 大连罗斯泵业有限公司 | Combined type efficient self-sucking pump |
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
| CN108457862B (en) * | 2018-04-09 | 2024-03-26 | 浙江工业大学 | Self-priming device and centrifugal pump |
| CN111720334A (en) * | 2020-06-02 | 2020-09-29 | 江苏罗地亚泵业有限公司 | Leakage-free full-power sealing type vertical self-priming pump |
| CN112145437A (en) * | 2020-09-30 | 2020-12-29 | 徐国华 | Self-suction single-stage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081022 |