CN201836056U - Multipurpose self-balanced marine multistage pump - Google Patents
Multipurpose self-balanced marine multistage pump Download PDFInfo
- Publication number
- CN201836056U CN201836056U CN2010205691003U CN201020569100U CN201836056U CN 201836056 U CN201836056 U CN 201836056U CN 2010205691003 U CN2010205691003 U CN 2010205691003U CN 201020569100 U CN201020569100 U CN 201020569100U CN 201836056 U CN201836056 U CN 201836056U
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- CN
- China
- Prior art keywords
- pump
- guide vane
- impeller
- pump housing
- water inlet
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- 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 - Lifetime
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Abstract
The utility model provides a multipurpose self-balanced marine multistage pump, which comprises bearings, water inlet sections, impellers, guide vane assemblies, guide vanes, a pump shaft and a pump body. The pump body with a flange is arranged in the middle of the pump, a pump cavity is divided into a front section and a rear section by the pump body, each of the front pump cavity and the rear pump cavity contains one guide vane which contains the corresponding impeller, the guide vanes and the impellers in the front pump cavity and the rear pump cavity are opposite in axial direction, another guide vane is arranged on one side of the corresponding guide vane assembly and the impeller, while another water inlet section and another bearing are arranged on the other side of guide vane assembly and the impeller, and the water inlet sections and the bearings are in bilateral symmetry and exchangeable. A water outlet tube on the left of the pump body is connected with a communication bend, and the communication bend is connected with the water inlet section on the right.
Description
Technical field
The utility model relates to a kind of centrifugal pump, and specifically, the utility model relates to a kind of horizontal multi-stage marine centrifugal pump.
Background technique
At present, domestic ships is to adopt sectional type high-pressure multi-stage centrifugal pump with multistage pump structure basically, because its multi-stage impeller is pacified same direction and is disposed in order, the axial force that produces during operation is very high, must adopt modes such as balance Hub or Balance disc to come balancing axial thrust, and balanced controls are when being not enough to balancing axial thrust, all the other axial forces are then born by bearing, when the operating conditions frequent variations, the variation of axial force must cause the frequent play of multistage centrifugal pump rotor part and rub, might also can killing of equilibrium structure occur and cause the generation of accidents such as off-axis, adopt equilibrium structure in use can carry particulate materials such as silt secretly in the medium simultaneously, can aggravate the wearing and tearing of Equilibrator, reduce the working life of the Equilibrator that makes greatly; Because marine pump belongs to the polymorphic type small lot batch manufacture, the right multiple structural requirement of purposes meeting according to different can't satisfy standardization, seriation, unitized three requirements of changing, can't realize the pump parts energy phase trans-substitution of same model, increase cost of production to a great extent.
Summary of the invention
In order to solve the problem of above-mentioned balance Hub, the heavy wear of Balance disc isoequilibrium device, the invention provides a kind of novel equilibrium structure, this structure need not Equilibrator, can realize the structure of balance automatically, above-mentionedly can't satisfy standardization, seriation in order to solve, unitized three requirements of changing realize the requirement that the pump parts of same model can the phase trans-substitution, the present invention simplifies component makes it simple in structure, and satisfies three and change requirement.
The utility model provides a kind of multipurpose self-balance type multistage pump peculiar to vessel, comprises bearing support, inlet segment, impeller, diffuser, guide vane, pump shaft, the pump housing; In the centre of pump is the pump housing that has flange, it is forward and backward two sections that the pump housing is separated pump chamber, in the forward and backward pump chamber guide vane is housed, be provided with impeller in the guide vane, guide vane in the forward and backward pump chamber is opposite with the impeller axial direction, and the other side at guide vane is provided with diffuser and impeller then, and the other side at diffuser and impeller is provided with inlet segment and bearing support then, inlet segment is that the left and right sides is identical with bearing support, can exchange.The logical in succession bend pipe of the outlet pipe of pump housing upper left side, be communicated with the inlet segment that bend pipe connects the right side, it is characterized in that: the hydraulic part of the left and right sides of the pump housing is symmetrical, and the pump housing is symmetrical semispiral type delivery chamber, each side is provided with guide vane in the pump housing.
The utility model has the advantages that in that guarantee on three bases of changing can the active balance axial force, thus the reliability and the life-span of improving multistage centrifugal pump peculiar to vessel.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model horizontal multi-stage centrifugal pump.
1, bearing cap 2, bearing support 3, sealing gland 4, mechanical seal 5, inlet segment 6, impeller 7, diffuser 8, guide vane 9, axle 10, transition tube 11, the pump housing 12, coupling 13 motors
Embodiment
As shown in Figure 1, left end at multistage pump peculiar to vessel is a bearing support 2, what be connected with bearing support 2 is inlet segment 4, establish right mechanical seal cover 3 at the left end of inlet segment 5, between inlet segment 3 and mechanical seal cover 3, be provided with mechanical seal 4, prevent that under the effect of mechanical seal 4 and inlet segment 3 working medium in the inlet segment 4 is leaked to outside the pump housing, on the right side of inlet segment 4 are diffusers 7, diffuser 7 is as a whole, comprise guide vane and return guide vane and stator shell three parts, in diffuser 7, be provided with impeller 6,7 right side at diffuser is the pump housing 10, the pump housing 10 is divided into ante-chamber and back cavity, by pull bar 1 with inlet segment 5, the diffuser 7 and the pump housing 10 are connected and fixed, be provided with impeller 8 and guide vane 9 between in the ante-chamber of the diffuser 7 and the pump housing 10, guide vane 9 is fixed in the pump housing 10 by clamping bolt, before the pump housing 10, a screw type delivery chamber is respectively arranged in the back cavity, center with the pump housing 10 is a benchmark, a left side, right both sides are symmetrical, also have, guide vane, impeller, diffuser, inlet segment, mechanical seal, mechanical seal cover and bearing support are formed, in working order down, the vacuum that produces under the action of centrifugal force of impeller 5 makes working medium enter in the impeller 5 in inducer 4, be thrown to then in the diffuser 6, guide vane and return guide vane through diffuser 6 enter in the second level impeller 7, enter in the pump housing 10 through guide vane 8 then, the pump housing 10 is the semispiral type spiral case, working medium is collected, and with kinetic energy be converted into pressure energy by transition pipeline 14 enter into the right inlet segment, pass through impeller then successively, diffuser, second level impeller, guide vane, and finally enter into the semispiral type delivery chamber on the right side of the pump housing 10, working medium collected and carry out transformation of energy, and working medium is transported in the export pipeline the most at last, it is characterized in that: the hydraulic part of the left and right sides of the pump housing 10 is symmetrical, the pump housing 10 is symmetrical, the semispiral type delivery chamber that is dislocatedly distributed each side is provided with guide vane 8 in the pump housing 10.
This novel overall structure adopts and is symmetrically distributed, and guide vane 8, impeller 6, diffuser 7, inlet segment 5, bearing support 2, bearing cap 1, sealing gland 2 are symmetrically distributed in pump housing both sides, and be simple in structure, compact.
Claims (1)
1. multipurpose self-balance type multistage pump peculiar to vessel, it is characterized in that: the hydraulic part of the left and right sides of the pump housing 10 is symmetrical, the pump housing 10 is semispiral type delivery chamber symmetrical, that be dislocatedly distributed, each side is provided with guide vane 8 in the pump housing 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205691003U CN201836056U (en) | 2010-10-08 | 2010-10-08 | Multipurpose self-balanced marine multistage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205691003U CN201836056U (en) | 2010-10-08 | 2010-10-08 | Multipurpose self-balanced marine multistage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836056U true CN201836056U (en) | 2011-05-18 |
Family
ID=44006160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205691003U Expired - Lifetime CN201836056U (en) | 2010-10-08 | 2010-10-08 | Multipurpose self-balanced marine multistage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483593A (en) * | 2022-01-26 | 2022-05-13 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
-
2010
- 2010-10-08 CN CN2010205691003U patent/CN201836056U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483593A (en) * | 2022-01-26 | 2022-05-13 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
| CN114483593B (en) * | 2022-01-26 | 2023-11-24 | 湖南凯利特泵业有限公司 | Self-balancing multistage split pump equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 225500 No. 9 Jiangyan Avenue, Jiangyan Economic Development Zone, Jiangsu Patentee after: Jiangsu Zhenhua pump Limited by Share Ltd Address before: 225500 No. 9, Jiangyan Avenue, Jiangyan, Jiangsu Patentee before: Jiangsu Zhenhua Pump Industry Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |