CN2753906Y - Vortex special pump for fire control - Google Patents
Vortex special pump for fire control Download PDFInfo
- Publication number
- CN2753906Y CN2753906Y CN 200420114248 CN200420114248U CN2753906Y CN 2753906 Y CN2753906 Y CN 2753906Y CN 200420114248 CN200420114248 CN 200420114248 CN 200420114248 U CN200420114248 U CN 200420114248U CN 2753906 Y CN2753906 Y CN 2753906Y
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- utility
- model
- vortex
- 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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Abstract
The utility model relates to a vortex special pump for fire control, which comprises a pump body, a mechanical seal, a pump cover, an electric motor and a base and is characterized in that an impeller in a pump chamber is a tangential impeller, the bottom of the tangential impeller is provided with a back cover board, and the axial clearance between the wall of the pump chamber and the impeller is 1 to 3 millimeters. The utility model has the advantage that the utility model not only satisfies the pump flow, namely that the head curve is smooth, but also ensures the efficiency of the pump.
Description
Technical field
The utility model relates to a kind of water pump, particularly a kind of rotary flow type fire-fighting dedicated pump.
Background technique
In the existing fire water pump manufacturer, the impeller design of fire water pump is general to adopt two kinds of patterns, a kind of employing be centrifugal, a kind of employing be tangent-type.There is following shortcoming in existing this dual mode: adopt the fire water pump of receded disk impeller, the flow-head curve of water pump is steep, and when small flow, the pressure height of pump easily causes the pipe breakage of system; When big flow, the pressure of pump descends fast, does not satisfy the pressure requirement of fire-fighting.Adopt the fire water pump of tangent-type impeller, though the flow-head curve of pump is smooth, the efficient of pump is low, and supporting power of motor strengthens, the cost of electrical equipment raises, and causes the energy consumption height of pump, and investment, operating cost increase.
Summary of the invention
The purpose of this utility model is to solve that fire water pump adopts centrifugal, existing the problems referred to above of tangent-type impeller in the prior art, provides that a kind of can to satisfy pump capacity-head curve smooth, can guarantee the rotary flow type fire-fighting dedicated pump of the efficient of pump again.The utility model design rotary flow type fire-fighting dedicated pump, comprise the pump housing, mechanical seal, pump cover, motor, base, it is characterized in that: at the endoceliac impeller of pump is the tangent-type impeller, on the bottom surface of tangent-type impeller back shroud is arranged, 1～3 millimeter of the axial clearance of pump housing cavity wall and impeller.The utility model has the advantages that can to satisfy pump capacity-head curve smooth, can guarantee the efficient of pump again.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing 1 is a structural representation of the present utility model,
Accompanying drawing 2 is a blade wheel structure schematic representation of the present utility model,
Embodiment
Comprise the pump housing 1, mechanical seal 2, pump cover 3, motor 4, base 5 among the figure, it is characterized in that: the impeller 6 in the pump housing 1 chamber is tangent-type impeller 6, back shroud 7 is arranged, 1～3 millimeter of the axial clearance of the pump housing 1 cavity wall and impeller 6 on the bottom surface of tangent-type impeller 6.Processed by machinery in the water passage surface of the pump housing 1 cavity casting back, between 1～3 millimeter, it is smooth to make that fire water pump can satisfy pump capacity-head curve, can guarantee the efficient of pump again with the axial clearance that guarantees the pump housing 1 cavity wall and impeller 6.
Claims (1)
1, rotary flow type fire-fighting dedicated pump, comprise the pump housing, mechanical seal, pump cover, motor, base, it is characterized in that: at the endoceliac impeller of pump is the tangent-type impeller, on the bottom surface of tangent-type impeller back shroud is arranged, 1～3 millimeter of the axial clearance of pump housing cavity wall and impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114248 CN2753906Y (en) | 2004-12-15 | 2004-12-15 | Vortex special pump for fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114248 CN2753906Y (en) | 2004-12-15 | 2004-12-15 | Vortex special pump for fire control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753906Y true CN2753906Y (en) | 2006-01-25 |
Family
ID=35926015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114248 Expired - Fee Related CN2753906Y (en) | 2004-12-15 | 2004-12-15 | Vortex special pump for fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753906Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133354A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Novel direct-connected single-stage pump |
-
2004
- 2004-12-15 CN CN 200420114248 patent/CN2753906Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133354A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Novel direct-connected single-stage 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: 20060125 Termination date: 20101215 |