CN87213415U - Series/parallel self-priming type centrifugal pump - Google Patents
Series/parallel self-priming type centrifugal pump Download PDFInfo
- Publication number
- CN87213415U CN87213415U CN 87213415 CN87213415U CN87213415U CN 87213415 U CN87213415 U CN 87213415U CN 87213415 CN87213415 CN 87213415 CN 87213415 U CN87213415 U CN 87213415U CN 87213415 U CN87213415 U CN 87213415U
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- pump
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- centrifugal pump
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Abstract
The utility model discloses a series / parallel self-priming type centrifugal pump which comprises a pressure water chamber diffusion tube (3), a gas-liquid separated chamber (4), a reflux hole (9), a spiral case (11), a cut water (12), and a liquid storage chamber (10). The utility model solves the problem that the self priming of the series / parallel type centrifugal pump can be achieved by a turbulence pump, which improves the work efficiency. The utility model has the advantages of short self-priming time, simple and compact structure, and small size.
Description
The utility model relates to a kind of series/parallel self priming centrifugal pump.
When pump is used for fixing with motor device, often the flow of a pump and lift can not satisfy actual needs, if adopt existing with series connection of pumps more than two or two or parallel running, inevitable increasing exponentially invested, and on motor device (for example trailer pump, engine pump, year pump truck, refuelling truck), because the restriction of installation conditions often can not realize, thereby the performance and the purposes of equipment have been limited to a great extent.
In order to address this problem, people have proposed to adopt a kind of can connect and can variable working condition, the multiduty centrifugal pump that use in parallel, both can satisfy small flow, high-lift needs, also can satisfy the needs of big flow, low lift, reduce equipment investment, improved the mobility and the purposes of equipment.
According to MIL-P-12620E, 6 inches two stage pumps that use on U.S. army's army pipe line line are a kind ofly itself can make the two stage centrifugal pump of serial or parallel connection, the at different levels of pump connect from the outside: can be with the series connection at different levels of pump with outside runner, can be connected into parallel connection with at different levels with special Y shape connecting tube, but this structure can not self-priming, and the transformation of series and parallel can only be that external connecting pipe is realized by outside runner.The Soviet Army has developed ц C п-51 type series/parallel self priming centrifugal pump, and this device utilizes turbulence pump to reach self-priming, utilizes the working condition changing valve to finish the transformation of series connection and two kinds of operating modes in parallel, but the employing turbulence pump, and when pump runs well, turbulence pump idle running, increase energy consumption, lower efficiency.
The purpose of this utility model is, proposes a kind of improved self-priming centrifugal pump of series/parallel that has, and it has the function that structure utilized itself reaches self-priming.
Task of the present utility model is achieved through the following technical solutions.
Basic structure pattern of the present utility model has pump shaft, two running wheels, working condition changing valve and inlet/outlet runners, two running wheels are assemblied on the pump shaft, separate by plate washer therebetween, running wheel is centrifugal, the working condition changing valve is formed by having two meniscate spools and valve seat, and this valve closely contacts with the inlet/outlet runner respectively; This structure also has two pumping chamber diffusing tubes, two gas-liquid separation chamber, two return ports, two spiral cases, two cut waters and two liquid storage rooms, above-mentioned feature is symmetric arrangement, gas-liquid separation chamber, liquid storage room, pumping chamber diffusing tube and spiral case constitute the cavity of pump, pumping chamber diffusing tube and pump spiral case cast solid, and be positioned at above it, gas-liquid separation chamber is positioned at housing top, liquid storage room is positioned at pump housing bottom, cut water is positioned at the connection part of pumping chamber diffusing tube and spiral case, return port is positioned at from the cut water top counts 135 °～165 °, and it is communicated with liquid storage room and spiral case.
Pumping chamber diffusing tube in the device seamlessly transits, and outlet faces delivery side of pump, and its internal surface is continuous by several, size is different trapezoidally is cut into face or other shape is formed.
The internal surface of return port is that the cylinder of waist shape is formed by several cross sections in the device.
The cut water in the device and the gap of impeller outer edge are 0.5～1MM.
The said apparatus working principle is as follows:
1. the change of series and parallel working condition is finished by the working condition changing valve, is equivalent to a multistage pump when series connection of pumps is worked, and is equivalent to the same performance pump of two parallel connections during parallel connection of pumps work.
2. after the normal startup of pump, the liquid that impeller is deposited liquid storage room and the air of suction line suck together, and in impeller, mixed fully, under action of centrifugal force, liquid entrainment the gas flow impeller outer edge, is formed with the pendular ring of certain thickness foam band and high speed rotating on the outer rim of impeller.Because the effect of cut water, gas liquid mixture enters gas-liquid separation chamber by diffusing tube.This moment, gas continued the discharge of rising by pump housing exhaust port because flow velocity reduction suddenly is heavy different with gas liquid ratio, and lighter gas is separated from mixed solution.Liquid after the degassing is got back to liquid storage room, and enters impeller once more by return port, and the gas that sucks from suction line with impeller inside mixes once more, under the impeller action of high speed rotating, flows to impeller outer edge again ...Along with this process is carried out again and again, the air in the suction line constantly reduces, and up to draining gas, pump just drops into proper functioning.
3. when connecting, working condition changing valve handle is placed on " series connection " position, and at this moment liquid enters the one-level running wheel by conversion valve channel and suction pipe, and liquid enters pump body passage from the one-level heliconid, liquid enters in the sencond stage impeller from this passage, enters the extrusion pipeline from the deuterostrophies body again.
4. when in parallel, working condition changing valve handle is placed on " parallel connection " position, at this moment liquid enters two running wheels from the I and II suction pipe simultaneously, the liquid that first order impeller is discharged is through the conversion valve channel, liquid in pump discharge and the discharge of second level impeller converges, and enters the extrusion pipeline then.
Owing to adopted structures such as pumping chamber diffusing tube, gas-liquid separation chamber, return port, series/parallel self priming centrifugal pump of the present utility model has obtained to utilize structure itself to reach the function of self-priming, this apparatus structure is simple, compact, volume is little, and self-priming time is short, the efficient height.
The explanation of accompanying drawing drawing:
Fig. 1. basic structure sketch of the present utility model, Fig. 1 (a), Fig. 1 (b).
Fig. 2. according to the structure diagram of a kind of concrete device that the utility model proposes.
Fig. 3. the A-A pump housing section of Fig. 2.
A kind of concrete device shown in Figure 2 comprises the pump housing (14), running wheel (2), working condition changing valve (6), inlet/outlet runner (16), (5), gas-liquid separation chamber (4), pumping chamber diffusing tube (3), liquid storage room (10), spiral case (11), return port (9), pump shaft (1), pump loam cake (13), plate washer (7), bearing support (15), coupling (8) and some bearings.
Running wheel in the device (2) is assemblied on the pump shaft (1), separate by plate washer (7) therebetween, gas-liquid separation chamber (4), pumping chamber diffusing tube (3), spiral case (11) and liquid storage room (10) symmetric arrangement, and the cavity of formation pump, working condition changing valve (6) is positioned at pump loam cake (13).
The transformation of said apparatus working condition is when realizing by the changing valve handle, and concrete grammar is, when needing series connection, handle plate to " series connection " position, when in parallel, is arrived " parallel connection " position with handle plate, and the plate active handle can carry out when pump work.Working procedure during the pump series/parallel is seen shown in Figure 1.
Fig. 3 has provided the pump housing sectional drawing of Fig. 2 A-A, the detailed relative position that has shown between gas-liquid separation chamber (4), pumping chamber diffusing tube (3), return port (9), spiral case (11) and the cut water (12) of this figure.Pumping chamber diffusing tube (3) and pump spiral case (11) cast solid, its outlet is smoothly transitted into and faces pump discharge, has so both reduced hydraulic loss, has quickened gas-liquid separation again, has shortened self-priming time.Cut water (12) is positioned at the joint of pumping chamber diffusing tube (3) and spiral case (11), and it and impeller outer edge gap are 0.5～1MM; Return port (9) position is positioned at 135 °～165 ° that count from cut water (12) top, and at this moment the efficient of self-priming time and pump is all more satisfactory.
Claims (5)
1, a kind of series/parallel self priming centrifugal pump, it has pump shaft (1), two running wheels (2), working condition changing valve (6) and advancing, outlet flow (16) (5), two running wheels (2) are assemblied on the pump shaft (1), separate by plate washer (7) therebetween, running wheel (2) is centrifugal, working condition changing valve (6) is formed by having two meniscate spools and valve seat, this valve respectively with advance, outlet flow (16) (5) is contact closely, it is characterized in that having two pumping chamber diffusing tubes (3), two gas-liquid separation chamber (4), two return ports (9), two spiral cases (11), two cut waters (12) and two liquid storage rooms (10), above-mentioned feature is symmetric arrangement, gas-liquid separation chamber (4), liquid storage room (10), pumping chamber diffusing tube (3) and spiral case (11) constitute the cavity of pump, pumping chamber diffusing tube (3) and pump spiral case (11) cast solid, and be positioned at above it, gas-liquid separation chamber (4) is positioned at housing top, liquid storage room (10) is positioned at pump housing bottom, cut water (12) is positioned at the connection part of pumping chamber diffusing tube (3) and spiral case (11), return port (9) is positioned at from cut water (12) top counts 135 °～165 °, and it is communicated with liquid storage room and spiral case.
2, series/parallel self priming centrifugal pump according to claim 1 is characterized in that pumping chamber diffusing tube (3) seamlessly transits, and outlet faces delivery side of pump.
3, series/parallel self priming centrifugal pump according to claim 1 and 2 is characterized in that the internal surface of pumping chamber diffusing tube (3) is made up of several trapezoid cross sections continuous, that size is different or other shape.
4, series/parallel self priming centrifugal pump according to claim 1, the internal surface that it is characterized in that return port (9) are that the cylinder of waist shape is formed by several cross sections.
5, series/parallel self priming centrifugal pump according to claim 1 is characterized in that cut water (12) and impeller outer edge gap are 0.5～1MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213415 CN87213415U (en) | 1987-09-17 | 1987-09-17 | Series/parallel self-priming type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213415 CN87213415U (en) | 1987-09-17 | 1987-09-17 | Series/parallel self-priming type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213415U true CN87213415U (en) | 1988-08-10 |
Family
ID=4827919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213415 Expired - Lifetime CN87213415U (en) | 1987-09-17 | 1987-09-17 | Series/parallel self-priming type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213415U (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484706B (en) * | 2006-06-30 | 2012-12-26 | 普莱克斯技术有限公司 | PSA/VPSA gas separation system, apparatus and method for eliminating pressure impulse |
| CN103899542A (en) * | 2014-04-15 | 2014-07-02 | 合肥华升泵阀有限责任公司 | Series-parallel connection centrifugal pump |
| CN104895805A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device convenient and quick in switching series connection and parallel connection |
| CN104895803A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device free in switching series connection and parallel connection |
| CN104895804A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device convenient in serial connection and parallel connection switching |
| CN104911347A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Device for carrying out chemical combination and efficient filter pressing in manganese electrolyzing process |
| CN104911346A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Combined and efficient filter pressing device in electrolytic manganese process |
| CN104911348A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Combined and efficient filter pressing device in electrolytic zinc process |
| CN104922952A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Chemical combination and efficient filter-pressing device in zinc electrolysis process |
| CN104928466A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Device for conducting chemical combination and efficient filter pressing in electrolytic manganese process |
| CN104922951A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Pump-circulation anti-blocking type efficient basic magnesium carbonate filter pressing device |
| CN104943220A (en) * | 2015-07-08 | 2015-09-30 | 吉首大学 | High-efficiency filter-press device of squeezed sugarcane juice |
| CN104943221A (en) * | 2015-07-08 | 2015-09-30 | 吉首大学 | High-efficiency filter-press device of squeezed sugarcane juice |
| CN104961145A (en) * | 2015-07-08 | 2015-10-07 | 吉首大学 | Pump cycle blockage prevention device for efficiently pressing and filtering basic magnesium carbonate |
| CN105002304A (en) * | 2015-07-08 | 2015-10-28 | 吉首大学 | Sugarcane juicing and efficient filter pressing device |
| CN105000590A (en) * | 2015-07-08 | 2015-10-28 | 吉首大学 | Chemical combination and efficient filter pressing device in electrolytic zinc process |
| CN105018723A (en) * | 2015-07-08 | 2015-11-04 | 吉首大学 | Chemical combination and efficient filter pressing device in manganese electrolysis process |
| CN105018652A (en) * | 2015-07-08 | 2015-11-04 | 吉首大学 | Sugarcane juicing and efficient filter pressing device |
| CN105031988A (en) * | 2015-08-28 | 2015-11-11 | 嵊州市博大泵业有限公司 | Flow pump system for sludge filter press |
| CN105031987A (en) * | 2015-07-08 | 2015-11-11 | 吉首大学 | Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate |
| CN105154668A (en) * | 2015-07-08 | 2015-12-16 | 吉首大学 | Device for conducting combination and efficient filter pressing in zinc electrolysis process |
| CN105317534A (en) * | 2015-11-12 | 2016-02-10 | 哈尔滨工程大学 | Turbocharger structure capable of achieving single-stage supercharging and two-stage supercharging |
| CN104984576B (en) * | 2015-07-08 | 2016-08-24 | 吉首大学 | Basic magnesium carbonate is carried out the device of efficient filter pressing by a kind of pump circulation anti-blockage type |
| US11118588B2 (en) | 2017-08-29 | 2021-09-14 | Cornell Pump Company | Dual pump system |
| CN113586458A (en) * | 2021-08-30 | 2021-11-02 | 陈荣国 | Self-suction type multi-stage composite shield pump |
| CN114704472A (en) * | 2022-04-29 | 2022-07-05 | 江苏大学 | Large-flow series-parallel emergency rescue pump |
-
1987
- 1987-09-17 CN CN 87213415 patent/CN87213415U/en not_active Expired - Lifetime
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101484706B (en) * | 2006-06-30 | 2012-12-26 | 普莱克斯技术有限公司 | PSA/VPSA gas separation system, apparatus and method for eliminating pressure impulse |
| CN103899542A (en) * | 2014-04-15 | 2014-07-02 | 合肥华升泵阀有限责任公司 | Series-parallel connection centrifugal pump |
| CN103899542B (en) * | 2014-04-15 | 2016-04-27 | 合肥华升泵阀股份有限公司 | A kind of series parallel connection centrifugal pump |
| CN104895805A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device convenient and quick in switching series connection and parallel connection |
| CN104895803A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device free in switching series connection and parallel connection |
| CN104895804A (en) * | 2015-07-01 | 2015-09-09 | 吉首大学 | Double-centrifugal-pump device convenient in serial connection and parallel connection switching |
| CN105002304A (en) * | 2015-07-08 | 2015-10-28 | 吉首大学 | Sugarcane juicing and efficient filter pressing device |
| CN105031987A (en) * | 2015-07-08 | 2015-11-11 | 吉首大学 | Pump-cycle anti-plugging type efficient filter pressing device for basic magnesium carbonate |
| CN104922952A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Chemical combination and efficient filter-pressing device in zinc electrolysis process |
| CN104928466A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Device for conducting chemical combination and efficient filter pressing in electrolytic manganese process |
| CN104922951A (en) * | 2015-07-08 | 2015-09-23 | 吉首大学 | Pump-circulation anti-blocking type efficient basic magnesium carbonate filter pressing device |
| CN104943220A (en) * | 2015-07-08 | 2015-09-30 | 吉首大学 | High-efficiency filter-press device of squeezed sugarcane juice |
| CN104943221A (en) * | 2015-07-08 | 2015-09-30 | 吉首大学 | High-efficiency filter-press device of squeezed sugarcane juice |
| CN104961145A (en) * | 2015-07-08 | 2015-10-07 | 吉首大学 | Pump cycle blockage prevention device for efficiently pressing and filtering basic magnesium carbonate |
| CN104911346A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Combined and efficient filter pressing device in electrolytic manganese process |
| CN105000590A (en) * | 2015-07-08 | 2015-10-28 | 吉首大学 | Chemical combination and efficient filter pressing device in electrolytic zinc process |
| CN105018723A (en) * | 2015-07-08 | 2015-11-04 | 吉首大学 | Chemical combination and efficient filter pressing device in manganese electrolysis process |
| CN105018652A (en) * | 2015-07-08 | 2015-11-04 | 吉首大学 | Sugarcane juicing and efficient filter pressing device |
| CN105018652B (en) * | 2015-07-08 | 2018-07-17 | 吉首大学 | A kind of sugar cane crushing and filter-pressing device |
| CN104911348A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Combined and efficient filter pressing device in electrolytic zinc process |
| CN105154668A (en) * | 2015-07-08 | 2015-12-16 | 吉首大学 | Device for conducting combination and efficient filter pressing in zinc electrolysis process |
| CN105002304B (en) * | 2015-07-08 | 2018-07-13 | 吉首大学 | Sugar cane crushing and filter-pressing device |
| CN104911347A (en) * | 2015-07-08 | 2015-09-16 | 吉首大学 | Device for carrying out chemical combination and efficient filter pressing in manganese electrolyzing process |
| CN104922952B (en) * | 2015-07-08 | 2016-06-08 | 吉首大学 | Chemical combination in electrolytic zinc technique and efficient filter-pressing device |
| CN104984576B (en) * | 2015-07-08 | 2016-08-24 | 吉首大学 | Basic magnesium carbonate is carried out the device of efficient filter pressing by a kind of pump circulation anti-blockage type |
| CN105018723B (en) * | 2015-07-08 | 2017-12-19 | 湖南双创部落信息咨询服务有限责任公司 | Chemical combination and efficient filter-pressing device in electrolytic manganese process |
| CN105031988A (en) * | 2015-08-28 | 2015-11-11 | 嵊州市博大泵业有限公司 | Flow pump system for sludge filter press |
| CN105317534A (en) * | 2015-11-12 | 2016-02-10 | 哈尔滨工程大学 | Turbocharger structure capable of achieving single-stage supercharging and two-stage supercharging |
| US11118588B2 (en) | 2017-08-29 | 2021-09-14 | Cornell Pump Company | Dual pump system |
| CN113586458A (en) * | 2021-08-30 | 2021-11-02 | 陈荣国 | Self-suction type multi-stage composite shield pump |
| CN114704472A (en) * | 2022-04-29 | 2022-07-05 | 江苏大学 | Large-flow series-parallel emergency rescue pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |