CN104895804A - Double-centrifugal-pump device convenient in serial connection and parallel connection switching - Google Patents
Double-centrifugal-pump device convenient in serial connection and parallel connection switching Download PDFInfo
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- CN104895804A CN104895804A CN201510375199.0A CN201510375199A CN104895804A CN 104895804 A CN104895804 A CN 104895804A CN 201510375199 A CN201510375199 A CN 201510375199A CN 104895804 A CN104895804 A CN 104895804A
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Abstract
The invention discloses a double-centrifugal-pump device convenient in serial connection and parallel connection switching. The double-centrifugal-pump device comprises an inlet pipe, two centrifugal pumps and an outlet pipe, wherein the two centrifugal pumps are driven by one same motor; the inlet pipe includes two pipelines, one of the pipelines is connected with the outlet pipe through a three-way cock and one of the centrifugal pumps, and the other pipeline is connected with the outlet pipe through the other centrifugal pump and another three-way cock; each of the two three-way cocks is provided with a gear driving a valve element to rotate, the gears of the two three-way cocks are meshed, a drive gear drives one of the gears of the three-way cocks to achieve rotation switching of the three-way cocks, and the three-way cocks are vertically communicated through an intermediate connecting pipe. The double-centrifugal-pump device has the advantages that precise and fast switching operation is achieved by reasonable and simple pipeline design and single power gear linkage travel, centrifugal pump serial connection and parallel connection switching operation is ingeniously achieved by the three-way cocks, and work efficiency is increased; compared with a conventional serial connection and parallel connection pipeline valve switching device, the double-centrifugal-pump device is simple in structure, simple to operate, less prone to errors, low in cost and high in practicality.
Description
Technical field
The present invention relates to a kind of two centrifugal pump device, specifically refer to two centrifugal pump devices of the convenient switching of series and parallel.
Background technique
Centrifugal pump due to structure simple and durable, use reliable, efficiency is high, flow is large and cost is low, apply the most general Liquid transfer dynamic power machine, come from centrifugal pump working principle, thus corresponding characteristic curve of centrifugal pump is also had, the calibrating parameters of centrifugal pump is exactly that centrifugal pump is in most effective corresponding flow and lift parameter, in actual use, it is too much that centrifugal pump running parameter does not depart from calibrating parameters, is rational operation interval.
In large-scale press filtration field, general is all first-selected plate and frame type filter-press, and select centrifugal pump as filter pressing pump, pressure-filtering process obtains filtrate, filter residue progressively runs up to optimal filling degree in pressure filter simultaneously, carry out respective handling again, finally complete the cycling process of filter residue cleaning, the object of press filtration realizes solid-liquid separation exactly.In the starting stage of press filtration operation, owing to being complete empty in pressure filter, concerning filter pressing pump, the quick large discharge input carrying out less lift is the ideal operation state of now press filtration operation; But increase along with filter cake accumulates rear resistance in pressure filter, when particularly stopping close to press filtration, have pressure maximum expanded state, therefore, larger lift can be had to be to best requirement by the press filtration performance of pressure filter in press filtration the second half.
But in press filtration operation, existing centrifugal pump all cannot adapt to such process automatically, reaches efficient, high-quality ideal operation state.When general centrifugal pump carries out press filtration operation, be all that the early stage lift of press filtration is lower, but flow is large, makes motor be in overload, especially easily motor damage; To the press filtration middle and later periods, press filtration resistance strengthens rapidly, and the flow quantity of centrifugal pump reduces rapidly, although at this moment motor is operated in the low power state of underloading, efficiency of press filtering is very low; Although filter pressing pump has H-Max output state, because pressing filtering liquid flow is less, the service behaviour of pressure filter cannot be given full play to and increase work efficiency.
Centrifugal pump is made to coordinate pressure filter, press filtration whole process is made all to reach ideal operation state, the optimum performance playing press filtration is difficult to realize, if but look for another way, the convenient COMM communication of two centrifugal pump series and parallels is adopted to complete press filtration work, make it in press filtration in early days by two centrifugal pump parallel connections, realize fast, low energy consumption, the efficient press filtration of large discharge; In press filtration, two centrifugal pumps are connected by after-stage, obtain high-lift conveying capacity, after meeting, journey press filtration resistance is large, but still applicable flow can be had to embody efficient press filtration and give full play to the feature of pressure filter performance, so convenient COMM communication of two centrifugal pump series and parallels is adopted to carry out break-through skill bottleneck, reach the ideal operation state of press filtration, there is the actual application value of particular importance.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, and provide two centrifugal pump devices of the convenient switching of a kind of series and parallel, this apparatus structure is simple, practical.
For overcoming the deficiencies in the prior art, the present invention takes following technological scheme:
Two centrifugal pump devices for the convenient switching of series and parallel, comprise inlet pipe, two centrifugal pumps and go out pipe, it is characterized in that: two centrifugal pumps are driven by same motor; Inlet pipe branches into two pipelines, and a pipeline is connected pipe through three way cock with centrifugal pump, and another pipeline is connected pipe through another centrifugal pump with another three way cock; Two three way cocks are equipped with gear driven Spool rotating, and the gear of two three way cocks engages each other and has driving gear to drive one, and the rotation realizing two three way cocks switches, the upper and lower UNICOM of union in two three way cock warps.
This device is rotated by driven by motor driving gear, can single-power gear-linked stroke, accurately fast switches manipulation, the convenient switching realizing two centrifugal pump series and parallel structures, after coordinating, press filtration can be made to operate and reach optimum Working with pressure filter.
Compared with prior art, beneficial effect of the present invention is also:
The optimum working performance reaching centrifugal pump needed for press filtration is switched by the series and parallel of centrifugal pump; By rationally succinct circuit design and single-power gear-linked stroke, accurately fast switch manipulation, the ingenious series and parallel handover operation being achieved two centrifugal pumps by two three way cocks; Compared with the series and parallel pipeline valve COMM communication of routine, threeway plug valve can greatly reduce the consumption of pipeline and valve, and simplifies the handover operation of series and parallel, avoids the mistake occurred in common pipe valving series and parallel handoff procedure.
Structure of the present invention is simple, and cost is low, practical, has a extensive future.
Accompanying drawing explanation
Fig. 1 is parallel-connection structure schematic diagram of the present invention.
Fig. 2 is cascaded structure schematic diagram of the present invention.
In figure, each label represents:
1, inlet pipe; 2, pipe is gone out; 3, middle union; 4, three way cock; 5, three way cock; 6, centrifugal pump; 7, centrifugal pump; 21, driving gear; 22, gear; 23, gear; 31, motor; 32, belt; 33, belt.
Embodiment
Now by reference to the accompanying drawings, the present invention is illustrated further.
Two centrifugal pump devices of the convenient switching of series and parallel as depicted in figs. 1 and 2, comprise inlet pipe 1, two centrifugal pumps 6,7 and go out pipe 2, two centrifugal pumps 6,7 are driven by same motor 31; Inlet pipe 1 branches into two pipelines, and a pipeline is connected pipe 2 through three way cock 4 with centrifugal pump 7, and another pipeline is connected pipe 2 through another centrifugal pump 6 with another three way cock 5; Two three way cocks 4,5 are equipped with gear 22,23 and drive Spool rotating, the gear 22,23 of two three way cocks engages each other and has driving gear 21 to drive one, the rotation realizing two three way cocks 4,5 switches, union about 3 UNICOM in two three way cock 4,5 warps.
Fig. 1 and Fig. 2 is same device different conditions, wherein driving gear 21 is driven by motor deceleration Stroke Control, and first drive the gear 23 of union three way cock 5 spool, gear 23 drives the gear 22 of union three way cock 4 spool again, realize single-power gear-linked, fast switch manipulation.
Fig. 1 is centrifugal pump 6,7 parallel connection conveying fluid, and the first branch road of inlet pipe 1 is for connecting centrifugal pump 6, and centrifugal pump 6 goes out the lower end of pipe union three way cock 5, is merged into out pipe 2 from upper end; Second branch road of intake pipe 1 is enter centrifugal pump 7 after union three way cock right-hand member 4, exports, be incorporated in out pipe 2, realize two branch road two parallel pumps, carry out large discharge output through pressurization, and three way cock 5 left end centering union is closed and cut off.
After two three way cocks are operated as shown in Figure 2, first branch road of inlet pipe 1 is for connecting centrifugal pump 6, centrifugal lower end of pumping pipe union three way cock 5, importing three way cock 4 upper end is exported by middle union 3 from left end, go out to enter centrifugal pump 7 from three way cock 4 left end, realize double pump series connection, the liquid carrying out lift superposition exports.Three way cock 4 right-hand member forms blocking-up to inlet pipe 1, and three way cock 5 upper end realizes blocking isolation to going out pipe 2.
As described above by single-power gear-linked, carry out stroke and fast switch accurately, interlock manipulation two three way cock combinations, the series and parallel realizing two centrifugal pumps switches, and the system making it to form more rationally can adapt to the efficient press filtration operation of large centrifugal pump.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (1)
1. two centrifugal pump devices for the convenient switching of series and parallel, comprise inlet pipe, two centrifugal pumps and go out pipe, it is characterized in that: two centrifugal pumps are driven by same motor; Inlet pipe branches into two pipelines, and a pipeline is connected pipe through three way cock with centrifugal pump, and another pipeline is connected pipe through another centrifugal pump with another three way cock; Two three way cocks are equipped with gear driven Spool rotating, and the gear of two three way cocks engages each other and has driving gear to drive one, and the rotation realizing two three way cocks switches, the upper and lower UNICOM of union in two three way cock warps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375199.0A CN104895804A (en) | 2015-07-01 | 2015-07-01 | Double-centrifugal-pump device convenient in serial connection and parallel connection switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375199.0A CN104895804A (en) | 2015-07-01 | 2015-07-01 | Double-centrifugal-pump device convenient in serial connection and parallel connection switching |
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| Publication Number | Publication Date |
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| CN104895804A true CN104895804A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510375199.0A Pending CN104895804A (en) | 2015-07-01 | 2015-07-01 | Double-centrifugal-pump device convenient in serial connection and parallel connection switching |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2235505B1 (en) * | 1972-07-20 | 1973-12-20 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | DOUBLE PUMP UNIT |
| CN87213415U (en) * | 1987-09-17 | 1988-08-10 | 空军油料研究所 | Series/parallel self-priming type centrifugal pump |
| FR2891880A1 (en) * | 2005-10-11 | 2007-04-13 | Renault Sas | Cooling circuit`s pump for coolant circulation in internal combustion engine, has valve setting circulation circuit in communication with another circuit at high functioning rate, and deviating coolant from latter circuit to former circuit |
| CN102177835A (en) * | 2011-04-14 | 2011-09-14 | 四川省农业机械研究设计院 | Electric power pumping irrigation station |
| CN102512869A (en) * | 2011-12-27 | 2012-06-27 | 无锡煤矿机械厂有限公司 | Filter black washing system for emulsion pump station |
| 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 |
| CN204716559U (en) * | 2015-07-01 | 2015-10-21 | 吉首大学 | Two centrifugal pump devices of the convenient switching of a kind of series and parallel |
-
2015
- 2015-07-01 CN CN201510375199.0A patent/CN104895804A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2235505B1 (en) * | 1972-07-20 | 1973-12-20 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | DOUBLE PUMP UNIT |
| CN87213415U (en) * | 1987-09-17 | 1988-08-10 | 空军油料研究所 | Series/parallel self-priming type centrifugal pump |
| FR2891880A1 (en) * | 2005-10-11 | 2007-04-13 | Renault Sas | Cooling circuit`s pump for coolant circulation in internal combustion engine, has valve setting circulation circuit in communication with another circuit at high functioning rate, and deviating coolant from latter circuit to former circuit |
| CN102177835A (en) * | 2011-04-14 | 2011-09-14 | 四川省农业机械研究设计院 | Electric power pumping irrigation station |
| CN102512869A (en) * | 2011-12-27 | 2012-06-27 | 无锡煤矿机械厂有限公司 | Filter black washing system for emulsion pump station |
| 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 |
| CN204716559U (en) * | 2015-07-01 | 2015-10-21 | 吉首大学 | Two centrifugal pump devices of the convenient switching of a kind of series and parallel |
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Application publication date: 20150909 |
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