CN204419706U - A kind of New Centrifugal Pump spiral case - Google Patents
A kind of New Centrifugal Pump spiral case Download PDFInfo
- Publication number
- CN204419706U CN204419706U CN201520006398.XU CN201520006398U CN204419706U CN 204419706 U CN204419706 U CN 204419706U CN 201520006398 U CN201520006398 U CN 201520006398U CN 204419706 U CN204419706 U CN 204419706U
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- CN
- China
- Prior art keywords
- centrifugal pump
- snail tongue
- inner chamber
- fillet
- spiral case
- Prior art date
- 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 - Fee Related
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- 241000237858 Gastropoda Species 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model proposes a kind of New Centrifugal Pump spiral case, existing worm frame, the fluid mobility status near snail tongue is poor, and volute outlet section streamline distribution is uneven, and the appearance of adjoint whirlpool, the performance of centrifugal pump entirety is had a certain impact.The utility model comprises a kind of New Centrifugal Pump spiral case, and described New Centrifugal Pump spiral case comprises chamber, outlet conduit and the fillet snail tongue structure between inner chamber low pressure area and zone of high pressure, and wherein the molded line of inner chamber adopts log spiral.Mainly through designing the snail tongue structure of inner chamber and outlet conduit jointing place, determine molded line parameter.Centrifugal pump spiral casing inner chamber and outlet conduit jointing place are fillet snail tongue.This fillet snail tongue molded line adopts two sections of circular arcs to combine, and circular parameters is determined by numerical computation method optimization, and the connection between curve is for being smoothly connected.The utility model can improve the mobility status of snail tongue portion fluid, makes the Flow Distribution of volute outlet section comparatively even, thus improves centrifugal pump performance.
Description
Technical field
The utility model belongs to turbomachine field, relates to centrifugal pump, is specifically related to a kind of New Centrifugal Pump spiral case.
Background technique
Centrifugal pump, as one of topmost power plant in the present age, is widely used in the sophisticated technology field such as all departments and Aero-Space of national economy.Improve the efficiency of centrifugal pump, can finite energy resource be made full use of, the economic benefit of raising.Therefore, improve research and the design level of centrifugal pump, have important impact to the national economic development, energy saving and environmental protection.Turbomachine mainly refers to the working machine adopting liquid as medium, mainly centrifugal pump.Pump is the one of turbomachine, is also the universal machine applied widely, and, just there is the work of pump in every field having flow of fluid.Along with the development of science and technology, the application of pump expands rapidly, and according to country variant statistics, the power consumption of pump all accounts for 1/5 of various countries' gross generation, and the power consumption of visible pump is huge, thus improves pump technical merit significant to energy saving.
Centrifugal pump is in running, and current can produce the Complex Phenomena in Vertical Bell Jars such as friction, collision, Secondary Flow, backflow, whirlpool through parts such as entrance, impeller, spiral cases.Spiral case is the operating vitals of centrifugal pump.The effect of spiral case has collection fluid, and kinetic energy is converted to the stagnation pressure of outlet as much as possible.The increase of volute outlet stagnation pressure contributes to improving centrifugal lift of pump.Wherein the flowing of snail tongue portion the most complicatedly the most easily occurs the flow phenomenons such as whirlpool.Therefore the mobility status improving snail tongue portion just seems particularly important, has larger impact to centrifugal pump performance.
Summary of the invention
The purpose of this utility model is the deficiency for existing research, a kind of New Centrifugal Pump worm frame is provided, the mobility status of New Centrifugal Pump worm frame snail tongue portion obtains obvious improvement, volute outlet section streamline distribution is more even, and there is no the appearance of whirlpool, can effectively improve centrifugal pump performance.
A kind of New Centrifugal Pump spiral case of the utility model, centrifugal pump spiral casing is a kind of spiral shaped housing construction element, comprise inner chamber, outlet conduit and the snail tongue structure between inner chamber low pressure area and zone of high pressure, wherein the molded line of inner chamber adopts log spiral, and described snail tongue structure adopts fillet snail tongue, and this fillet snail tongue molded line adopts two sections of circular arcs to combine, circular parameters is determined by numerical computation method optimization, and the connection between two sections of circular arcs is for being smoothly connected.
the beneficial effects of the utility model
The utility model, by the optimal design to centrifugal pump spiral casing snail tongue portion, effectively can improve the mobility status of snail tongue portion, make volute outlet section streamline distribution comparatively become even, and do not have the appearance of whirlpool, thus the centrifugal pump performance of effective raising.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is snail tongue portion enlarged diagram in Fig. 1.
Description of reference numerals: comprise inner chamber 1, outlet conduit 2, fillet snail tongue 3, fillet snail tongue transition arc 3-1, fillet snail tongue transition arc 3-2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1 and Figure 2, a kind of New Centrifugal Pump spiral case comprises inner chamber 1, and outlet conduit 2 and fillet snail tongue 3, its sectional drawing as shown in Figure 1.The partial enlarged drawing of snail tongue portion as shown in Figure 2, designates inner chamber 1 respectively, outlet conduit 2 and fillet snail tongue 3.The transition arc of fillet snail tongue 3 is made up of the circular arc 3-1 of two sections of different radiis and circular arc 3-2.
This worm frame changes snail tongue 3 into fillet by right angle, can improve the fluid mobility status at snail tongue 3 place, makes volute outlet section streamline distribution comparatively become even, thus improves the centrifugal pump performance of raising.
Claims (1)
1. a New Centrifugal Pump spiral case, centrifugal pump spiral casing is a kind of spiral shaped housing construction element, comprise inner chamber, outlet conduit and the snail tongue structure between inner chamber low pressure area and zone of high pressure, it is characterized in that: wherein the molded line of inner chamber adopts log spiral, described snail tongue structure adopts fillet snail tongue, and this fillet snail tongue molded line adopts two sections of circular arcs to combine, and the connection between two sections of circular arcs is for being smoothly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006398.XU CN204419706U (en) | 2015-01-06 | 2015-01-06 | A kind of New Centrifugal Pump spiral case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006398.XU CN204419706U (en) | 2015-01-06 | 2015-01-06 | A kind of New Centrifugal Pump spiral case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419706U true CN204419706U (en) | 2015-06-24 |
Family
ID=53470083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520006398.XU Expired - Fee Related CN204419706U (en) | 2015-01-06 | 2015-01-06 | A kind of New Centrifugal Pump spiral case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10871169B2 (en) | 2017-05-09 | 2020-12-22 | Sulzer Management Ag | Volute casing for a centrifugal pump and centrifugal pump |
-
2015
- 2015-01-06 CN CN201520006398.XU patent/CN204419706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10871169B2 (en) | 2017-05-09 | 2020-12-22 | Sulzer Management Ag | Volute casing for a centrifugal pump and centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160106 |