CN204572469U - Level Four series and-parallel connection pump - Google Patents
Level Four series and-parallel connection pump Download PDFInfo
- Publication number
- CN204572469U CN204572469U CN201520017731.7U CN201520017731U CN204572469U CN 204572469 U CN204572469 U CN 204572469U CN 201520017731 U CN201520017731 U CN 201520017731U CN 204572469 U CN204572469 U CN 204572469U
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- Prior art keywords
- impeller
- series
- level
- parallel connection
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
Abstract
The utility model relates to a kind of level Four series and-parallel connection pump, level Four impeller connect between two formation two groups series connection impeller sets, two groups of series connection impeller sets are symmetrically arranged in unit fixed on water pump suction, connecting passage is provided with between two groups of series connection impeller sets, connecting passage is communicated with pump intake, connecting passage is equipped with series parallel connection selector valve, between connecting passage and pump intake, one-way valve is housed, for realizing series connection and the parallel connection of level Four impeller simultaneously.The single pump of level Four impeller of the present utility model, by series parallel connection selector valve and one-way valve interoperation, can realize the function of series connection and parallel connection simultaneously.A pump only motor driving, can realize as purposes is planted in fire-fighting, cooling draining etc., compact structure, natural equilibrium axial force, has good application prospect simultaneously.
Description
Technical field
The utility model relates to a kind of water pump, especially a kind of series and-parallel connection pump water pump.
Background technique
At present, in order to expand the operation parameter scope of water pump, series connection (Fig. 1) often through two water pumps realizes that flow is constant, lift doubles, or is realized by the parallel connection (Fig. 2) of two water pumps that lift is constant, flow doubles, and reaches the object of regulating parameter from system change.
As Fig. 3, shown in 4, the separate unit multi-stage water pump that impeller is arranged symmetrically with, can pass through external pipeline, by impeller serial or and be unified into a high performance water pump, realize the raising of performance parameter.As patent publication No. CN103498797A, disclose a kind of parallel self-balance type multistage centrifugal pump, by impeller is pressed back-to-back symmetrical arrangement in the pump housing, achieve impeller self balancing in the axial direction, decrease the mechanical friction that multistage centrifugal pump produces because of axial force in operation process, extend the working life of centrifugal pump, and equilibrium structure removed from by this centrifugal pump, few easy workout part, and leakage loss is little, safety reliability is high, safeguards simple.Patent announcement CN2276572Y, disclose a kind of segmental opposed voluted type multistage slag thick liquid pump, stage casing group is containing several pair of volute stage casing, and impeller and two volute stage casings corresponding configuration, the impeller being positioned at low pressure area has some relief holes, in initial operating stage or later stage, radial force, axial force can hydraulic equilibriums, and reasonable in design is safe and reliable to operation, life-span is long, is applicable to the multiple slag slurry of remote, high-lift conveying.And two water pumps or separate unit water pump are by the change of system external pipeline, often only realize in parallel or concatenation function, function is more single.
Summary of the invention
The utility model to provide a kind of level Four series and-parallel connection pump, for solving the change by system external pipeline of two water pumps or separate unit water pump, only can realize parallel connection or concatenation function, the technical problem that function is more single, this pump is by series parallel connection selector valve and one-way valve interoperation, the function of series connection and parallel connection can be realized simultaneously, achieve the purposes that a water pump has two kinds of parameters, become a kind of multiduty water pump.
For achieving the above object, the technical solution of the utility model is: a kind of level Four series and-parallel connection pump, there is level Four impeller, be characterized in: level Four impeller connect between two formation two groups series connection impeller sets, two groups of series connection impeller sets are symmetrically arranged in unit fixed on water pump suction, connecting passage is provided with between two groups of series connection impeller sets, connecting passage is communicated with pump intake, series parallel connection selector valve connecting passage is equipped with, between connecting passage and pump intake, one-way valve is housed, for realizing series connection and the parallel connection of level Four impeller simultaneously.
One group of series connection impeller sets is formed by first order impeller and second level impeller serial, and another group series connection impeller sets is formed by third level impeller and fourth stage impeller serial, and two groups of series connection impeller sets are arranged on same live axle.
When series parallel connection selector valve is communicated with second level impeller and third level impeller, after described closed check valve, described two groups of impeller sets are in series connection; When series parallel connection selector valve is communicated with water outlet and the exit of pump of second level impeller, after described one-way valve is opened, described two groups of impeller sets are in parallel connection.
The beneficial effects of the utility model are:
The single pump of level Four impeller of the present utility model, by series parallel connection selector valve and one-way valve interoperation, can realize the function of series connection and parallel connection simultaneously.If single impeller is flow 20m
3/ h, lift 30m, when operated in tandem, the flow 20m of water pump
3/ h, lift 120m; When parallel operation, the flow 40m of water pump
3/ h, lift 60m, namely a pump has two parameters.
A pump only motor driving, can realize as purposes is planted in fire-fighting, cooling draining etc., compact structure, natural equilibrium axial force, has good application prospect simultaneously.
Accompanying drawing explanation
Fig. 1 is two pumps principle of parallel figure;
Fig. 2 is two pumps in series schematic diagram;
Fig. 3 is that existing multi-stage impeller is connected in series schematic diagram;
Fig. 4 is that existing multi-stage impeller is connected in parallel schematic diagram;
Fig. 5 is the structural representation of level Four series and-parallel connection pump of the present utility model;
Fig. 6 is the series parallel connection transition diagram of level Four series and-parallel connection pump of the present utility model;
Wherein: (a) is that two groups of impeller sets are in series connection, and (b) two groups of impeller sets are in parallel connection.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As Fig. 5, shown in 6, level Four series and-parallel connection pump of the present utility model, comprises second level impeller 1, guider 2, first order impeller 3, the pump housing 4, pump cover 5, third level impeller 6, fourth stage impeller 7, one-way valve 8, series parallel connection selector valve 9, live axle 10 etc.
First order impeller 3 and second level impeller 1 series connection are the 1st group, and third level impeller 6 and fourth stage impeller 7 are connected into the 2nd group.Two groups series connection impeller sets is in a symmetrical arrangement, unit fixed on water pump suction is relative between two.Two groups of series connection impeller sets are arranged on same live axle.
Be provided with connecting passage between two groups of series connection impeller sets, connecting passage is communicated with pump intake, connecting passage is equipped with series parallel connection selector valve, between connecting passage and pump intake, one-way valve is housed, for realizing series connection and the parallel connection of level Four impeller simultaneously.
The single pump of the utility model level Four impeller, by series parallel connection selector valve and one-way valve interoperation, can realize the function of series connection and parallel connection simultaneously, achieve the purposes that a water pump has two kinds of parameters, become a kind of multiduty water pump.
As shown in Figure 6, water pump is provided with series parallel connection selector valve 9 and one-way valve 8.When series parallel connection selector valve 9 is by second level impeller 1 and third level impeller 6 UNICOM, one-way valve 8 is subject to hydraulic pressure effect, is in closed condition, achieves four impeller serial work (Fig. 6 (a)); When series parallel connection selector valve 9 by second level impeller 1 go out saliva be delivered to exit of pump time, one-way valve 8 is subject to the pumping action of third level impeller 6, be in opening state, third level impeller 6 extracts the water of unit fixed on water pump suction, now, first group of series connection impeller and second group of series connection impeller become parallel connection (Fig. 6 (b)).
Level Four series and-parallel connection pump can take the split type pump housing, pump cover structure as Fig. 5, makes the compact structure of water pump; The guider of such as Fig. 5 can be changed into the volute pattern of the outlet as second level impeller by level Four series and-parallel connection pump; Impeller can be taked different diameters by level Four series and-parallel connection pump, is beneficial to processing and structural configuration; Level Four series and-parallel connection pump can be taked general coupling and mechanical seal structure or adopt magnetic coupling, becomes high-pressure magnetic pump structure.
Claims (3)
1. a level Four series and-parallel connection pump, there is level Four impeller, it is characterized in that: described level Four impeller connect between two formation two groups series connection impeller sets, two groups of series connection impeller sets are symmetrically arranged in unit fixed on water pump suction place, connecting passage is provided with between two groups of series connection impeller sets, connecting passage is communicated with pump intake, connecting passage is equipped with series parallel connection selector valve (9), one-way valve (8) is housed between connecting passage and pump intake, for realizing series connection and the parallel connection of level Four impeller simultaneously.
2. level Four series and-parallel connection pump according to claim 1, it is characterized in that: described one group of series connection impeller sets is in series by first order impeller (3) and second level impeller (1), another group series connection impeller sets is in series by third level impeller (6) and fourth stage impeller (7), and two groups of series connection impeller sets are arranged on same live axle (10).
3. level Four series and-parallel connection pump according to claim 2, it is characterized in that: when series parallel connection selector valve (9) is communicated with second level impeller (1) and third level impeller (6), after described one-way valve (8) is closed, described two groups of impeller sets are in series connection; When series parallel connection selector valve (9) is communicated with water outlet and the exit of pump of second level impeller (1), after described one-way valve (8) is opened, described two groups of impeller sets are in parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017731.7U CN204572469U (en) | 2015-01-12 | 2015-01-12 | Level Four series and-parallel connection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017731.7U CN204572469U (en) | 2015-01-12 | 2015-01-12 | Level Four series and-parallel connection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572469U true CN204572469U (en) | 2015-08-19 |
Family
ID=53865113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017731.7U Active CN204572469U (en) | 2015-01-12 | 2015-01-12 | Level Four series and-parallel connection pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204572469U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533797A (en) * | 2015-01-12 | 2015-04-22 | 中国船舶重工集团公司第七0四研究所 | Four-stage series-and-parallel connection pump |
| US11118588B2 (en) | 2017-08-29 | 2021-09-14 | Cornell Pump Company | Dual pump system |
| US20230313809A1 (en) * | 2022-04-04 | 2023-10-05 | Cooper-Standard Automotive Inc | Multi-switch pump assembly |
| WO2023196713A1 (en) * | 2022-04-04 | 2023-10-12 | Cooper-Standard Automotive Inc | Multifunctional pump assembly |
-
2015
- 2015-01-12 CN CN201520017731.7U patent/CN204572469U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533797A (en) * | 2015-01-12 | 2015-04-22 | 中国船舶重工集团公司第七0四研究所 | Four-stage series-and-parallel connection pump |
| US11118588B2 (en) | 2017-08-29 | 2021-09-14 | Cornell Pump Company | Dual pump system |
| US20230313809A1 (en) * | 2022-04-04 | 2023-10-05 | Cooper-Standard Automotive Inc | Multi-switch pump assembly |
| WO2023196713A1 (en) * | 2022-04-04 | 2023-10-12 | Cooper-Standard Automotive Inc | Multifunctional pump assembly |
| WO2023196712A1 (en) * | 2022-04-04 | 2023-10-12 | Cooper-Standard Automotive Inc. | Multi-switch pump assembly |
| US11953018B2 (en) * | 2022-04-04 | 2024-04-09 | Cooper-Standard Automotive Inc. | Multi-switch pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151117 Address after: 200031 Xuhui District, Hengshan Road, No. 10, Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 Xuhui District, Hengshan Road, No. 10, Patentee before: No.704 Institute of China Shipbuilding Industry Corporation |