CN203023072U - Compact vortex constant pressure pump - Google Patents
Compact vortex constant pressure pump Download PDFInfo
- Publication number
- CN203023072U CN203023072U CN 201220707212 CN201220707212U CN203023072U CN 203023072 U CN203023072 U CN 203023072U CN 201220707212 CN201220707212 CN 201220707212 CN 201220707212 U CN201220707212 U CN 201220707212U CN 203023072 U CN203023072 U CN 203023072U
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- pump
- constant pressure
- primary blades
- blades
- chamber
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Abstract
The utility model discloses a compact vortex constant pressure pump, and belongs to the technical field of fluid machinery and engineering equipment. The compact vortex constant pressure pump mainly comprises a pump body, a pump cover, impellers, a pump shaft and a supporting frame in structure. The pump body is connected with a motor through a short and small supporting frame, the pump shaft and a motor shaft are integrated to form a directly connected and stable structure. The impellers are installed on the end portion of the pump shaft, most parts of the impellers stretch into a main blade cavity, an axial and vertical bending type is adopted for a main blade, by adopting of a specific bending angle and bending proportion, a certain gap is enabled to be reserved between the top of the main blade and a front cover of a pump cavity, and constant pressure performance of a pump is guaranteed. The compact vortex constant pressure pump has the advantages of being constant in pressure, compact in structure, small in occupied area, low in initial assembly cost, convenient to use and maintain, and the like, and the compact vortex constant pressure pump can be used for fire protection, irrigation, high-level water supply, town water supply factories and other water supply situations where stable pressure is needed.
Description
Technical field
The utility model relates to a kind of compact cyclone constant pressure pump, belongs to the Fluid Machinery and Engineering equipment technical field, is applicable to the water supply occasion that fire-fighting, irrigation, high-floor feedwater, villages and small towns water-supply plant etc. need pressure stability.
Background technique
Needing the occasion of constant pressure water supply, three kinds of modes are being arranged at present, the one, adopt Ordinary Centrifugal Pumps, the 2nd, variable frequency water supply, the 3rd, adopt constant pressure pump.Adopt Ordinary Centrifugal Pumps, do not possess constant-voltage characteristic, serious superpressure during small flow brings potential safety hazard for water system and operator; During large flow, pressure drop is very fast, might can't satisfy water requirements.Adopt variable frequency water supply, solved the deficiency of the first way of supplying water, but variable frequency water supply needs extra frequency conversion system, and take more building area, Meteorological is high.The employing constant pressure pump supplies water, and using in the market is the constant-pressure tangent pump more widely, but this pump efficiency is low, and noise is high, and especially under low flow rate condition, noise is larger, has limited its application.
Summary of the invention
The utility model combines that ordinary single-stage single-suction centrifugal pump efficient is high, the advantage of the voltage stabilizing constant-voltage characteristic of variable frequency water supply and constant pressure pump, and overcome the shortcoming of above-mentioned several way of supplying water, efficiently solve constant pressure water supply occasion inefficiency, floor space is large, noise is high, fund input is high, pressure sharply rises or lower degradation problem during changes in flow rate, when having changes in flow rate pressure change little, noise is low, smooth running, just dress up low, save the advantages such as civil engineering amount, working service be convenient.
The compact cyclone constant pressure pump of the utility model design, its structure mainly comprises the pump housing, pump cover, impeller, pump shaft and support.The pump housing is provided with the liquid flow inlet and outlet, minute primary blades chamber and front and back, back blades chamber two-part.Helical structure is adopted in the primary blades chamber, and section is rectangular cross section, and the back blades chamber is loop configuration, straight-through primary blades chamber, back blades chamber.The pump housing is connected by short and small support with motor, and this pump is the direct connection horizontal pump coaxial with motor.Impeller is arranged on shaft end, and impeller is comprised of primary blades, back shroud, back blades, wheel hub, and to seeing, the blade import is to the outlet palintrope by the importer for described primary blades, and rear bight portion inclination angle is 30 °; Bending forward near exit portion, bend section length is 35%～20% of primary blades length forward again.Primary blades and back blades adopt prismatic blade pattern, primary blades exit angle β
2In 90 °～108 ° scopes, back blades is radial, and exit angle is 90 °.Impeller primary blades top and front panel gap, pump housing primary blades chamber are very little, are controlled in 2～5mm scope.
Description of drawings
Fig. 1 is compact cyclone constant pressure pump structural representation.In figure: 1 is motor, and 2 is water retaining ring, and 3 is support, and 4 is pump shaft, and 5 is pump cover, and 6 is the pump housing, and 7 is delivery side of pump, and 8 is the import of pump, and 9 is the impeller nut, and 10 is impeller, and 11 is the chassis.
Fig. 2 is the utility model blade wheel structure schematic diagram; Wherein (a) is the blade wheel structure schematic cross-section, is (b) major and minor blade structure schematic diagram.
Fig. 3 is pump housing cross-sectional configuration schematic diagram.
Embodiment
The utility model is horizontal type structure, general structure as shown in Figure 1, the pump housing 6 is connected by support 3 with motor 1, the pump housing 6 forms the utility model pump chambers with pump cover 5 actings in conjunction, as shown in Figure 3, is the back blades chamber near pump cover place 6.1, the back blades chamber is loop configuration, back blades 10.4 is contained in the back blades chamber fully, and back blades and pump cover gap are 1mm, and back blades is used for balancing axial thrust; Near import 8 parts 6.2 be the primary blades chamber, the primary blades chamber is helical structure, section is rectangle, the impeller primary blades overwhelming majority is in the primary blades chamber, impeller primary blades top and primary blades chamber front panel gap L are in 2～5mm scope.Motor shaft and pump shaft 4 one, impeller 10 is arranged on axle, and by impeller nut 9 axial restraints.
Blade wheel structure mainly comprises primary blades 10.3, back shroud 10.1 as shown in Figure 2, wheel hub 10.2, back blades 10.4.To seeing (be in Fig. 2 A to), the blade import is to the outlet palintrope by the importer for primary blades, and rear bight portion inclination angle is 30 °; Bending forward near exit portion, bend section length is 35%～20% of primary blades length forward again.Primary blades and back blades adopt prismatic blade pattern, primary blades exit angle β
2In 90 °～108 ° scopes, back blades is radial, and exit angle is 90 °.
Claims (7)
1. compact cyclone constant pressure pump, its structure mainly comprises the pump housing, pump cover, impeller, pump shaft and support.The pump housing is provided with the liquid flow inlet and outlet, it is characterized in that adopting helical design and is provided with the primary blades chamber and the back blades chamber; The pump housing is connected by short and small support with motor, and pump shaft and motor shaft one form straight connection type; Described impeller is arranged on shaft end, impeller is comprised of primary blades, back shroud, back blades, wheel hub, and described primary blades seen by the pump inlet direction, and the blade import is to outlet bending backward, bending forward near exit portion, primary blades and back blades adopt the prismatic blade structure again.
2. compact cyclone constant pressure pump as described in right 1, is characterized in that, the pump housing is connected by short and small support with motor, pump shaft and motor shaft one, and namely motor shaft end is installed impeller.
3. compact cyclone constant pressure pump as described in right 1, is characterized in that, the pump housing divides primary blades chamber and front and back, back blades chamber two-part; Helical structure is adopted in the primary blades chamber, and section is rectangular cross section, and the back blades chamber is loop configuration, and the back blades chamber is communicated with the primary blades chamber.
4. compact cyclone constant pressure pump as described in right 1, is characterized in that, impeller primary blades and back blades adopt the prismatic blade pattern, and described primary blades is bending forward near exit portion, and bend section length is 35%～20% of primary blades length forward.
5. compact cyclone constant pressure pump as described in right 1, is characterized in that, primary blades exit angle β
2Be in 90 °～108 ° scopes.
6. compact cyclone constant pressure pump as described in right 1, is characterized in that, after the primary blades import, the bight portion inclination angle is 30 °.
7. compact cyclone constant pressure pump as described in right 1, is characterized in that, impeller primary blades top and front panel gap, pump housing primary blades chamber are very little, are controlled in 2～5mm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707212 CN203023072U (en) | 2012-12-20 | 2012-12-20 | Compact vortex constant pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707212 CN203023072U (en) | 2012-12-20 | 2012-12-20 | Compact vortex constant pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023072U true CN203023072U (en) | 2013-06-26 |
Family
ID=48647061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220707212 Expired - Fee Related CN203023072U (en) | 2012-12-20 | 2012-12-20 | Compact vortex constant pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329231A (en) * | 2014-09-22 | 2015-02-04 | 安徽富乐泰水泵系统有限公司 | Machine body connecting device for small-sized water pump |
| CN105251165A (en) * | 2015-11-18 | 2016-01-20 | 明光浩淼安防科技股份公司 | Powder pumping system comprising spiral flow and constant pressure pump and fire fighting truck with same |
-
2012
- 2012-12-20 CN CN 201220707212 patent/CN203023072U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329231A (en) * | 2014-09-22 | 2015-02-04 | 安徽富乐泰水泵系统有限公司 | Machine body connecting device for small-sized water pump |
| CN105251165A (en) * | 2015-11-18 | 2016-01-20 | 明光浩淼安防科技股份公司 | Powder pumping system comprising spiral flow and constant pressure pump and fire fighting truck with same |
| CN105251165B (en) * | 2015-11-18 | 2018-10-26 | 明光浩淼安防科技股份公司 | A kind of pulvis pumping system formed with spiral flow constant-pressure pump and the fire fighting truck with the system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Jianghe Xuanlong Water Pump Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Jianghe Xuanlong Water Pump Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20171220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |