CN201090523Y - Novel double volute pump body for narrow flow passage chemical industry pump - Google Patents
Novel double volute pump body for narrow flow passage chemical industry pump Download PDFInfo
- Publication number
- CN201090523Y CN201090523Y CNU200720073794XU CN200720073794U CN201090523Y CN 201090523 Y CN201090523 Y CN 201090523Y CN U200720073794X U CNU200720073794X U CN U200720073794XU CN 200720073794 U CN200720073794 U CN 200720073794U CN 201090523 Y CN201090523 Y CN 201090523Y
- Authority
- CN
- China
- Prior art keywords
- spiral case
- novel double
- pump
- double volute
- internal layer
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a novel double-scroll-casing pump body used for a narrow channel chemical pump, comprising an outer scroll casing and an inner scroll casing. The utility model is characterized in that 3 - 4 inclined holes are arranged on the inner scroll casing along the flowing direction of fluid; the inside top end of the inner scroll casing is extended over the medial axial of the scroll casing. The utility model has the advantages that the radial force can be reduced without big changes on the structure and the quality and the effect can be guaranteed by the purpose that the inclined holes are used to clean sand in the central channel.
Description
Technical field
The utility model relates to a kind of spiral case pump housing of water pump, particularly a kind of novel double volute pump housing that is used for narrow runner chemical pump.
Background technique
Bigger for flow-rate ratio now, lift is than higher centrifugal chemical pump, radial force when moving in order to reduce, take on pump housing runner, double volute to be set more, so promptly reduced radial force, also reduced simultaneously the wall thickness of the whole pump housing, for the very expensive chemical pump of material, this way that is very important.But existing shortcoming is exactly for the narrow chemical pump of some runners, done the double volute structure and just meaned that its intermediate flow channel is just littler, just add in casting so and be difficult to manufacturing, the cleaning of the sand of the inside is unclean usually, the also non-constant of pump housing inner spiral casing surface quality.
Summary of the invention
The purpose of this utility model is that the narrow chemical pump of runner is taked the existing the problems referred to above of double volute pump housing runner in the solution prior art, and a kind of novel double volute pump housing that is used for narrow runner chemical pump is provided.A kind of novel double volute pump housing that is used for narrow runner chemical pump of the utility model design comprises outer spiral case, internal layer spiral case, it is characterized in that: the flow direction at internal layer spiral case upper edge liquid stream is offered inclined hole.The inclined hole of offering at the internal layer spiral case is 3～4.The extend through spiral case medial axis, interior top of internal layer spiral case.The utility model has the advantages that need not carry out big change to structure just can reduce radial force, and pass through the inclined hole of opening middle runner is carried out the sand removal purpose, ensure the quality of products and effect.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing and example the utility model is elaborated.
Embodiment
Comprise outer spiral case 1, internal layer spiral case 2 among the figure, it is characterized in that: the flow direction at internal layer spiral case 2 upper edge liquid streams is offered inclined hole 3.The inclined hole of offering at internal layer spiral case 23 is 3～4.The extend through spiral case medial axis, interior top of internal layer spiral case 2.Owing on the downbeam of internal layer spiral case 2, offer 3～4 inclined holes 3, promptly can drainage carry out the sand removal flushing to the intermediate flow channel between internal layer spiral case 2 and the outer spiral case 1, the length that prolongs internal layer spiral case 2 can further reduce the radial force of chemical pump again.
Claims (3)
1. a novel double volute pump housing that is used for narrow runner chemical pump comprises outer spiral case, internal layer spiral case, it is characterized in that: the flow direction at internal layer spiral case upper edge liquid stream is offered inclined hole.
2. by the described a kind of novel double volute pump housing that is used for narrow runner chemical pump of claim 1, it is characterized in that: the inclined hole of offering at the internal layer spiral case is 3～4.
3. by the described a kind of novel double volute pump housing that is used for narrow runner chemical pump of claim 1, it is characterized in that: the extend through spiral case medial axis, interior top of internal layer spiral case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720073794XU CN201090523Y (en) | 2007-08-17 | 2007-08-17 | Novel double volute pump body for narrow flow passage chemical industry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720073794XU CN201090523Y (en) | 2007-08-17 | 2007-08-17 | Novel double volute pump body for narrow flow passage chemical industry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090523Y true CN201090523Y (en) | 2008-07-23 |
Family
ID=39862284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720073794XU Expired - Fee Related CN201090523Y (en) | 2007-08-17 | 2007-08-17 | Novel double volute pump body for narrow flow passage chemical industry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090523Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265040A (en) * | 2008-10-28 | 2011-11-30 | 荷兰应用科学研究会(Tno) | Turbo machine and method to reduce vibration in turbo machines |
| CN108930668A (en) * | 2017-05-26 | 2018-12-04 | 中国电建集团上海能源装备有限公司 | A kind of spiral case cut water and double volute pump |
-
2007
- 2007-08-17 CN CNU200720073794XU patent/CN201090523Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265040A (en) * | 2008-10-28 | 2011-11-30 | 荷兰应用科学研究会(Tno) | Turbo machine and method to reduce vibration in turbo machines |
| CN102265040B (en) * | 2008-10-28 | 2015-06-24 | 荷兰应用科学研究会(Tno) | Turbo machine and method to reduce vibration in turbo machines |
| CN108930668A (en) * | 2017-05-26 | 2018-12-04 | 中国电建集团上海能源装备有限公司 | A kind of spiral case cut water and double volute pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20120817 |