CN203374511U - Double-helix self-sealing centrifugal pump impeller matching device - Google Patents
Double-helix self-sealing centrifugal pump impeller matching device Download PDFInfo
- Publication number
- CN203374511U CN203374511U CN201320419309.5U CN201320419309U CN203374511U CN 203374511 U CN203374511 U CN 203374511U CN 201320419309 U CN201320419309 U CN 201320419309U CN 203374511 U CN203374511 U CN 203374511U
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- China
- Prior art keywords
- impeller
- seal ring
- centrifugal pump
- screw thread
- pump impeller
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- Expired - Fee Related
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Abstract
The utility model discloses a double-helix self-sealing centrifugal pump impeller matching device which comprises a left sealing ring (1), an impeller (2) and a right sealing ring (3). The double-helix self-sealing centrifugal pump impeller matching device is characterized in that the left sealing ring (1) and the right sealing ring (3) are arranged on the two sides of the impeller (2), the left sealing ring (1) and a left wheel shaft of the impeller (2) both have matching gaps and threads for preventing liquid from leakage, and the right sealing ring (3) and a right wheel shaft of the impeller (2) both have matching gaps and threads for preventing liquid from leakage. According to the double-helix self-sealing centrifugal pump impeller matching device, effective water column leakage is lowered during working, volume loss of a pump body is lowered, efficiency is improved, axial force is stabilized, reliability is high, and sealing performance is stable.
Description
Technical field
The utility model relates to the seal arrangement field, is specifically related to a kind of double helix selfsealings centrifugal pump impeller adapting device.
Background technique
Traditional unshrouded impeller is the plate-like wheel hub that can be connected with impeller shaft by endoporus by, both sides or one side at the plate-like wheel hub have arc or straight blade and plate-like wheel hub to link, and in the ingress of impeller, only have a seal ring and plate-like wheel hub blade inlet on one side to link.The defect of this mode is, the one-sided annular seal that the high low pressure fluid between the outlet of pump inlet and unshrouded impeller only depends on the blade of little axial clearance between impeller blade and the pump housing and impeller to link reaches sealing purpose.Due to the little axial clearance between impeller blade and the pump housing, when manufacturing and install, be difficult to guarantee, one-sided annular seal ring is easy to solve single-side sealing, can not solve the problem of two-side sealing and axial force balance.Though traditional unshrouded impeller anti-plugging performance is good, but the volumetric loss of the pump housing is large, efficiency is low, and axial force is difficult to balance, and poor reliability seals unstable.
The model utility content
The purpose of this utility model is to provide a kind of, and while reducing work, effective water column leaks, and reduces the volumetric loss of the pump housing, raises the efficiency, and stablizes axial force, and reliability is high, the double helix selfsealings centrifugal pump impeller adapting device that sealing is stable.
In order to realize above purpose, the technological scheme that the utility model adopts is: a kind of double helix selfsealings centrifugal pump impeller adapting device, it comprises left seal ring (1), impeller (2), right seal ring (3), it is characterized in that: left seal ring (1), right seal ring (3) are arranged on impeller (2) both sides; There is matching gap in left seal ring (1) with impeller (2) revolver axle two-part, all with the screw thread that prevents leak of liquid; There is matching gap in right seal ring (3) with the right wheel shaft two-part of impeller (2), all with the screw thread that prevents leak of liquid.
Under better performance, described matching gap is 1mm-1.25mm.
Under better performance, the screw thread of described impeller (2) the right and left is contrary, and the screw thread guiding is pointed to impeller (2) center.
Under better performance, described left seal ring (1), right seal ring (3) screw thread tail end are convinced chute by patient analysis.
Under better performance, equal with axle at the bottom of thread groove on described impeller (2) revolver axle, right wheel shaft, the screw thread tail end has guiding gutter near impeller (2) part.
For the impeller of different rotation directions, the thread rotary orientation of described seal ring and impeller shaft during according to real work the rotation direction of impeller determine, spirally-guided points to the impeller center; And the seal ring of homonymy is identical with the thread rotary orientation of impeller shaft, homonymy is not contrary.
The beneficial effects of the utility model: when the utility model has reduced work, effective water column leaks, and has reduced the volumetric loss of the pump housing, has improved the efficiency of centrifugal pump, stablizes axial force, and reliability is high, and sealing is stable.
The accompanying drawing explanation
The half section schematic diagram that Fig. 1 is the better embodiment of the utility model.
When Fig. 2 is the prior art impeller operation, current move towards schematic diagram.
When Fig. 3 is the utility model impeller operation, current move towards schematic diagram.
Fig. 4 is the left half structure schematic diagram of the utility model.
Fig. 5 is the right half structure schematic diagram of the utility model.
Numeral described in figure and letter mark are expressed as: 1, left seal ring; 2, impeller; 3, right seal ring; A, fluid column direction; B, water leakage flow away to; C, selfsealings current trend.
Embodiment
In order to make those skilled in the art understand better the technical solution of the utility model; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
As shown in Figure 1, assembly relation of the present utility model is: it comprises left seal ring 1, impeller 2, right seal ring 3, it is characterized in that: left seal ring 1, right seal ring 3 are arranged on impeller 2 both sides; There is matching gap in left seal ring 1 with impeller 2 revolver axle two-part, all with the screw thread that prevents leak of liquid; There is matching gap in right seal ring 3 with the right wheel shaft two-part of impeller 2, all with the screw thread that prevents leak of liquid.
In this example, described matching gap is 1mm-1.25mm.
In this example, described left seal ring 1, right seal ring 3 screw thread tail ends are convinced chute by patient analysis.
In this example, equal with axle at the bottom of thread groove on described impeller 2 revolver axles, right wheel shaft, the screw thread tail end has guiding gutter near impeller 2 parts.
In this example, the impeller that rotation direction is different, the thread rotary orientation of described seal ring and impeller shaft during according to real work the rotation direction of impeller determine, spirally-guided points to the impeller center; And it is identical that the seal ring of homonymy and the screw thread of impeller shaft revolve, homonymy is contrary.Make like this current of leakage be taken back impeller blade by the screw thread of seal ring and impeller shaft again.
As Fig. 2-Fig. 5, when Fig. 2 is the prior art impeller operation, current move towards schematic diagram, and when Fig. 3 is the utility model impeller operation, current move towards schematic diagram, and Fig. 4 is the left half structure schematic diagram of the utility model, and Fig. 5 is the right half structure schematic diagram of the utility model.This example has utilized the screw thread guiding principle, and the current automatic guide that impeller blade is leaked returns blade, has initiatively blocked leakage, has reduced the volumetric loss of the pump housing, raises the efficiency, and stablizes axial force, and reliability is high, and sealing is stable.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise which key element, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.
Applied specific case herein principle of the present utility model and mode of execution are set forth, the explanation of above example is just for helping to understand method of the present utility model and core concept thereof.The above is only preferred implementation of the present utility model, should be understood that, finiteness due to literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement, retouching or variation, also above-mentioned technical characteristics can be combined by rights; These improve retouching, change or combination, or without improving, the design of model utility and technological scheme are directly applied to other occasion, all should be considered as protection domain of the present utility model.
Claims (5)
1.
oneplant double helix selfsealings centrifugal pump impeller adapting device, it comprises left seal ring (1), impeller (2), right seal ring (3), it is characterized in that: left seal ring (1), right seal ring (3) are arranged on impeller (2) both sides; There is matching gap in left seal ring (1) with impeller (2) revolver axle two-part, all with the screw thread that prevents leak of liquid; There is matching gap in right seal ring (3) with the right wheel shaft two-part of impeller (2), all with the screw thread that prevents leak of liquid.
2. a kind of double helix selfsealings centrifugal pump impeller adapting device according to claim 1, it is characterized in that: described matching gap is 1mm-1.25mm.
3. a kind of double helix selfsealings centrifugal pump impeller adapting device according to claim 1, it is characterized in that: the screw thread of described impeller (2) the right and left is contrary, and the screw thread guiding is pointed to impeller (2) center.
4. a kind of double helix selfsealings centrifugal pump impeller adapting device according to claim 1, it is characterized in that: described left seal ring (1), right seal ring (3) screw thread tail end are convinced chute by patient analysis.
5. a kind of double helix selfsealings centrifugal pump impeller adapting device according to claim 1 is characterized in that: equal with axle at the bottom of thread groove on described impeller (2) revolver axle, right wheel shaft, the screw thread tail end has guiding gutter near impeller (2) part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419309.5U CN203374511U (en) | 2013-07-13 | 2013-07-13 | Double-helix self-sealing centrifugal pump impeller matching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320419309.5U CN203374511U (en) | 2013-07-13 | 2013-07-13 | Double-helix self-sealing centrifugal pump impeller matching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374511U true CN203374511U (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320419309.5U Expired - Fee Related CN203374511U (en) | 2013-07-13 | 2013-07-13 | Double-helix self-sealing centrifugal pump impeller matching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374511U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939896A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of digital metering non-return centrifugal pump of high leakproofness |
| CN109128191A (en) * | 2018-09-28 | 2019-01-04 | 安徽环科泵阀有限公司 | A kind of centrifugal pump throttling sealing ring and its production technology |
| CN111828370A (en) * | 2020-06-28 | 2020-10-27 | 江苏大学 | Radial sealing opening ring of centrifugal pump |
-
2013
- 2013-07-13 CN CN201320419309.5U patent/CN203374511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939896A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of digital metering non-return centrifugal pump of high leakproofness |
| CN109128191A (en) * | 2018-09-28 | 2019-01-04 | 安徽环科泵阀有限公司 | A kind of centrifugal pump throttling sealing ring and its production technology |
| CN111828370A (en) * | 2020-06-28 | 2020-10-27 | 江苏大学 | Radial sealing opening ring of 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20190713 |