CN105650000A - Circulating water pump and method for transforming same - Google Patents
Circulating water pump and method for transforming same Download PDFInfo
- Publication number
- CN105650000A CN105650000A CN201511020638.2A CN201511020638A CN105650000A CN 105650000 A CN105650000 A CN 105650000A CN 201511020638 A CN201511020638 A CN 201511020638A CN 105650000 A CN105650000 A CN 105650000A
- Authority
- CN
- China
- Prior art keywords
- impeller
- water pump
- volute
- pump volute
- water
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2216—Shape, geometry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a circulating water pump which comprises a water pump volute, an impeller, a transmission shaft and a motor used for driving the transmission shaft. The impeller and the transmission shaft are located in the water pump volute. The transmission shaft is sleeved with the impeller, and the impeller is fixedly connected with the transmission shaft. The impeller sequentially comprises two symmetrically-distributed cylinders, two symmetrically-distributed horn mouths, and an impeller body from the two sides to the center, wherein the diameters of the two horn mouths are gradually increased from the two sides to the center. The cylindrical faces and the water pump volute are sealed through sealing rings. A gap is reserved between each horn mouth and the water pump volute. A plurality of blades are formed on the impeller body. The invention further discloses a method for transforming the circulating water pump. The water pump flow of the circulating water pump is large, the efficiency of a circulating water system is high, and a good energy-saving effect is achieved.
Description
Technical field
The present invention relates to circulating water system field, particularly relate to a kind of water circulating pump for jig coal washing and the method for transformation water circulating pump.
Background technology
Circulating water in coal washing system is a kind of conventional washing systems, by transport pipe, supplies water for being in high-order coal washing jig, after recirculated water coal washing, flows back to pipeline through recirculated water, rely on gravity to return concentration basin, and recirculation uses. Separate unit circulation-water pump electric machine power 280kw, 6kv of circulating water in coal washing system, system synthesis efficiency is general not high, and energy-saving potential is very big.
When being transformed by circulating water in coal washing energy saving of system, common method improves recycle pump efficiency or converter technique, after recycle pump usefulness improves, and the also corresponding minimizing of required drive-motor load, thus reduce final energy-saving effect. But, the cost of transformation high-voltage motor is higher, especially when relating to power line reconstruct, comprises the transformation of housing system, can increase improvement cost, and affect the popularization of power-saving technology.
Therefore, it is necessary to design one can increase energy-saving effect, control reducing energy consumption cost, it is to increase the water circulating pump of circulating water in coal washing system energy efficiency and the method for transformation water circulating pump.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that one can increase energy-saving effect, control reducing energy consumption cost, it is to increase the water circulating pump of circulating water in coal washing system energy efficiency and the method for transformation water circulating pump.
The technical scheme of the present invention provides a kind of water circulating pump, comprises water pump volute, is positioned at impeller and the transmission shaft of described water pump volute, and described impeller set is located on described transmission shaft and is fixedly connected with, and for driving the electric motor of described transmission shaft,
Described impeller comprises symmetrical two right cylinder successively from two side direction centers, two hydraucones that symmetrical, diameter increases gradually from two side direction centers, and impeller body;
Seal ring seal is passed through between described cylindrical surface and described water pump volute;
Gap is left between described hydraucone and described water pump volute;
Described impeller body is formed multiple blade.
Preferably, described gap between described hydraucone and described water pump volute is millimeter level.
Preferably, forming impeller outlet between the maximum diameter place of two described hydraucones, the width of described impeller outlet is 115mm-160mm.
Preferably, the outside of described right cylinder is impeller inlet, and the diameter of described impeller inlet is 315mm-335mm.
Preferably, described water pump volute and described impeller are manufactured by machining.
Preferably, the roughness of the internal surface of described water pump volute and the outside surface of described impeller is millimeter level.
The technical scheme of the present invention also provides a kind of method transforming water circulating pump, comprises the following steps:
Reduce the gap between described hydraucone and described water pump volute;
Increase the volume of described impeller.
Preferably, between the maximum diameter place of two described hydraucones, form impeller outlet,
The step of the volume of described increase impeller, comprises further:
Increasing the width of described impeller outlet, the width of described impeller outlet is 115mm-160mm.
Preferably, the outside of described right cylinder is impeller inlet,
The step of the volume of described increase impeller, comprises further:
Increasing the diameter of described impeller inlet, the diameter of described impeller inlet is 315mm-335mm.
Preferably, described gap between described hydraucone and described water pump volute is millimeter level.
Preferably, described water pump volute and described impeller are manufactured by machining.
Preferably, the roughness of the internal surface of described water pump volute and the outside surface of described impeller is millimeter level.
Preferably, described water pump volute is made by casting processing,
Before the step of the volume of the described impeller of described increase, also comprise the following steps:
Reject entity not regular on the inwall of described water pump volute, expand the internal space of described water pump volute.
Preferably, before the step of the volume of the described impeller of described increase, also comprise the following steps: the wall thickness cutting down described water pump volute from inner side, expand the internal space of described water pump volute.
After adopting technique scheme, there is following useful effect: the pump capacity of the water circulating pump in the present invention is relatively big, and the efficiency of circulating water system is higher, obtains good energy-saving effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of water circulating pump in one embodiment of the invention;
Fig. 2 is the sectional view of impeller in one embodiment of the invention;
Fig. 3 is the schematic diagram transforming water circulating pump in one embodiment of the invention.
Reference numeral synopsis:
1 water pump volute 2 impeller 3 transmission shaft
11 gap 21 right cylinder 22 hydraucones
23 impeller body 24 blade 25 impeller inlets
26 impeller outlets
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figure 1, water circulating pump comprises water pump volute 1, is positioned at impeller 2 and the transmission shaft 3 of water pump volute 1, and impeller 2 is set on transmission shaft 3 and is fixedly connected with, and for driving the electric motor (not shown) of transmission shaft 3. During work, electric motor drives transmission shaft 3 to rotate, and transmission shaft 3 impeller 2 is rotated, and impeller 2 drives the water cycle of water pump volute 1 simultaneously.
In the present embodiment, as shown in Figure 2, impeller 2 comprises symmetrical two right cylinder 21 successively from two side direction centers, two hydraucones 22 that symmetrical, diameter increases gradually from two side direction centers, and impeller body 23; Sealed by wear ring (not shown) between cylindrical surface 21 and water pump volute 1;Gap 11 is left between hydraucone 22 and water pump volute 1; Impeller body 23 is formed multiple blade 24. Water enters impeller 2 from impeller inlet 25, then goes out from impeller outlet 26, and blade 24 drives water cycle.
Goodly, gap 11 between hydraucone 22 and water pump volute 1 is millimeter level. In traditional water circulating pump, the outside surface of impeller 2 and the internal surface of water pump volute 1, owing to surface working difficulty is big, cost price height, is all generally adopt original cast face, is also exactly non-machined surface. Therefore, between impeller 2 and water pump volute 1, to be considered that mould processing manufactures error in design, sand mold modeling error, casting shrinkage heat rises a series of errors such as error, surface roughness error, and geometric distortion shape error and their progressive error, all need to leave bigger cooperation space in design, generally it mostly is cms magnitude. The present invention utilizes this space just, provides design space for expanding water circulating pump flow. Invention increases the dimensional precision in the gap 11 between hydraucone 22 and water pump volute 1, the gap between impeller 2 and water pump volute 1 is turned into millimeter level from centimetre-sized.
Goodly, the roughness of the internal surface of water pump volute 1 and the outside surface of impeller 2 is millimeter level. Surface is more smooth, is more conducive to the precision in the gap 11 improved between hydraucone 22 and water pump volute 1. Increase pump capacity, it is to increase the volumetric efficiency of water pump volute, it is to increase the working efficiency of water circulating pump.
Goodly, forming impeller outlet 26 between the maximum diameter place of two hydraucones 22, the width of impeller outlet 26 is 115mm-160mm. The area of impeller outlet 26 is more big, and pump capacity is more big. Goodly, the outside of right cylinder 21 is impeller inlet 25, and the diameter of impeller inlet 25 is 315mm-335mm. The area of impeller inlet 25 is more big, and pump capacity is more big, and the volumetric efficiency of water pump volute is also more big, and the working efficiency of water circulating pump is also more high.
Goodly, water pump volute 1 and impeller 2 are manufactured by machining, and such as: utilize numerically-controlled machine to carry out precision work, by sheet template numerically-controlled machine, numerically-controlled machine generates work program automatically, processes required parts. After processing, the precision of the internal surface of water pump volute 1 and the outside surface of impeller 2 is higher, is conducive to increasing the volumetric efficiency of water pump volute, it is to increase the working efficiency of water circulating pump.
After process and remould, larger sized impeller can be obtained, bring following energy-saving effect:
1. can significantly increase the width of impeller outlet 26 and the diameter of impeller inlet 25, especially the width of impeller outlet 26 and the diameter of impeller inlet 25 can be improved in low-specific-speed water pump exponentially, design space is createed for expanding the flow of water circulating pump, can effectively increase water circulating pump to the demand of power simultaneously, drive motor is conducive to work under full capacity, it is to increase the working efficiency of water circulating pump;
2. add the slickness of impeller outer surface and water pump volute internal surface, the efficiency of water circulating pump can be improved;
3. improve the volumetric efficiency of water pump volute. Traditional water circulating pump is owing to the liquid pressure of impeller outlet 26 is higher than the pressure of impeller inlet 25, and pressure reduction makes partially liq by gap 11 again backflow leakage to impeller inlet 25, reduces pump efficiency. In the present invention, after gap 11 reduces, can increasing the rotary centrifugal force damping action on impeller outer surface, opposing is leaked pressure reduction and is reduced leakage area, can effectively reduce the volumetric loss of water pump volute.
4., after impeller outlet 26 and impeller inlet 25 are widened, be conducive to improving the specific speed of hydraulic turbine of water circulating pump, the hydraulic efficiency of water circulating pump can be improved.
5. what former circulating water in coal washing system adopted is two pump circulating water in coal washing systems. After the impeller dilatation of replacing water circulating pump, completing the service discharge of former two pumps with one, the energy consumption of circulating water in coal washing system drops to 280kw from 560kw, and energy-conservation 50%, efficiency promotes one times.
The present invention transforms the method for water circulating pump, comprises the following steps:
Reduce the gap between hydraucone 22 and water pump volute 1;
Increase the volume of impeller 2.
Goodly, between the maximum diameter place of two hydraucones 22, form impeller outlet 26,
The step of the volume of described increase impeller 2, comprises further:
Increasing the width of impeller outlet 26, the width of impeller outlet is 115mm-160mm. As shown in Figure 3, in figure, arrow A is the dimension of the width of impeller outlet 26.
Goodly, the outside of right cylinder 21 is impeller inlet 25,
The step of the volume of described increase impeller, comprises further:
Increasing the diameter of impeller inlet 25, the diameter of impeller inlet 25 is 315mm-335mm. As shown in Figure 3, in figure, arrow B is the expanded in diameter direction of impeller inlet 25.
Goodly, when water pump volute 1 is made by casting processing,
Before the step of the volume of described increase impeller 2, also comprise the following steps:
Reject entity not regular on the inwall of water pump volute 1, expand the internal space of water pump volute 1.
After rejecting entity not regular on the inwall of water pump volute 1, provide space for increasing the volume of impeller 2, be conducive to increasing the flow of the pump housing.
Goodly, before the step of the volume of the described impeller of described increase, also comprise the following steps:
Cut down the wall thickness of water pump volute 1 from inner side, expand the internal space of water pump volute 1.
When the inwall of water pump volute 1 is less than not regular entity, it is possible to by cutting down the wall thickness of water pump volute 1, expand the internal space of water pump volute 1. Or simple dependence rejects entity not regular on the inwall of water pump volute 1, when can not meet the internal space expansion of water pump volute 1, not regular entity on the inwall rejecting water pump volute 1 can be adopted, then the mode cutting down the wall thickness of water pump volute 1 is to expand internal space.
It is an object of the invention to expand pump capacity, it is to increase the volumetric efficiency of water pump volute, final raising circulating water in coal washing system energy efficiency. In general can according to following three principle of design:
1, when motor surplus is less, it is not necessary to the internal surface of dynamic water pump volute 1, only by the space in gap 11, expand to impeller 2;
2, when motor surplus is bigger, the internal surface of Least Material Principle correction water pump volute 1 can be adopted, reject the not regular entity of casting surface, expand the intracavity space of water pump volute 1;
3, when motor surplus is enough big, while as far as possible big expansion impeller 2, according to the actual use safety intensity principle of water circulating pump, the wall thickness of water pump volute 1 can be removed, expands the intracavity space of water pump volute 1.
The present invention improves the conveyance power of water of water circulating pump effectively, and the power matching of water circulating pump is balanced. The transport pipe flow of water circulating pump is not become by the present invention, hydraulic loss also can not increase, water circulating pump each several part efficiency of energy utilization all can be maintained and raising, efficiently avoid components of system as directed energy efficiency of equipment to reduce, the situation corroding energy-saving effect occurs, is the energy-efficient creation condition of water circulating pump. The present invention has that change equipment in pump is few, and improvement cost is low, can play the efficiency of energy utilization of pump each several part to greatest extent.
The present invention can be used for single pump, or two pump, is equally also applicable to the improvement of many pumps.
Above-described is only principle and the preferred embodiment of the present invention. It is noted that for the person of ordinary skill of the art, on the basis of the principle of the invention, it is also possible to make other modification some, protection scope of the present invention should be also considered as.
Claims (14)
1. a water circulating pump, comprises water pump volute, is positioned at impeller and the transmission shaft of described water pump volute, and described impeller set is located on described transmission shaft and is fixedly connected with, and for driving the electric motor of described transmission shaft, it is characterised in that,
Described impeller comprises symmetrical two right cylinder successively from two side direction centers, two hydraucones that symmetrical, diameter increases gradually from two side direction centers, and impeller body;
Seal ring seal is passed through between described cylindrical surface and described water pump volute;
Gap is left between described hydraucone and described water pump volute;
Described impeller body is formed multiple blade.
2. water circulating pump according to claim 1, it is characterised in that, the described gap between described hydraucone and described water pump volute is millimeter level.
3. water circulating pump according to claim 1, it is characterised in that, form impeller outlet between the maximum diameter place of two described hydraucones, the width of described impeller outlet is 115mm-160mm.
4. water circulating pump according to claim 1, it is characterised in that, the outside of described right cylinder is impeller inlet, and the diameter of described impeller inlet is 315mm-335mm.
5. water circulating pump according to claim 1, it is characterised in that, described water pump volute and described impeller are manufactured by machining.
6. water circulating pump according to claim 1, it is characterised in that, the roughness of the internal surface of described water pump volute and the outside surface of described impeller is millimeter level.
7. transform the method for water circulating pump in claim 1 for one kind, it is characterised in that, comprise the following steps:
Reduce the gap between described hydraucone and described water pump volute;
Increase the volume of described impeller.
8. the method for transformation water circulating pump according to claim 7, it is characterised in that, form impeller outlet between the maximum diameter place of two described hydraucones,
The step of the volume of described increase impeller, comprises further:
Increasing the width of described impeller outlet, the width of described impeller outlet is 115mm-160mm.
9. the method for transformation water circulating pump according to claim 7, it is characterised in that, the outside of described right cylinder is impeller inlet,
The step of the volume of described increase impeller, comprises further:
Increasing the diameter of described impeller inlet, the diameter of described impeller inlet is 315mm-335mm.
10. the method for expansion water circulating pump flow according to claim 7, it is characterised in that, the described gap between described hydraucone and described water pump volute is millimeter level.
The method of 11. transformation water circulating pumps according to claim 7, it is characterised in that, described water pump volute and described impeller are manufactured by machining.
The method of 12. transformation water circulating pumps according to claim 7, it is characterised in that, the roughness of the internal surface of described water pump volute and the outside surface of described impeller is millimeter level.
The method of 13. transformation water circulating pumps according to claim 7, it is characterised in that, described water pump volute is made by casting processing,
Before the step of the volume of the described impeller of described increase, also comprise the following steps:
Reject entity not regular on the inwall of described water pump volute, expand the internal space of described water pump volute.
The method of 14. transformation water circulating pumps according to claim 7, it is characterised in that, before the step of the volume of the described impeller of described increase, also comprise the following steps: the wall thickness cutting down described water pump volute from inner side, expand the internal space of described water pump volute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020638.2A CN105650000A (en) | 2015-12-30 | 2015-12-30 | Circulating water pump and method for transforming same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020638.2A CN105650000A (en) | 2015-12-30 | 2015-12-30 | Circulating water pump and method for transforming same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105650000A true CN105650000A (en) | 2016-06-08 |
Family
ID=56478255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020638.2A Pending CN105650000A (en) | 2015-12-30 | 2015-12-30 | Circulating water pump and method for transforming same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650000A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019244590A1 (en) * | 2018-06-22 | 2019-12-26 | 株式会社荏原製作所 | Double suction volute pump |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187689Y (en) * | 1994-04-12 | 1995-01-18 | 郑州诚信电站装备产业科技有限公司 | Energy-saving double-suction centrifugal circulation water pump |
| CN2195635Y (en) * | 1994-08-08 | 1995-04-26 | 冯炎 | Safety energy-saving single-stage double-suction centrifugal water pump |
| CN2225562Y (en) * | 1995-06-28 | 1996-04-24 | 张新维 | Booster water pump |
| CN101418814A (en) * | 2008-09-25 | 2009-04-29 | 长沙天鹅工业泵股份有限公司 | Core-loosing highly effective energy-conserving vertical diagonal flow pump |
| CN201802678U (en) * | 2010-07-12 | 2011-04-20 | 大连四方佳特流体设备有限公司 | Medicine pump |
| CN201972928U (en) * | 2011-02-21 | 2011-09-14 | 陈招锋 | Novel double-suction pump for cooling circulation water |
| CN202883464U (en) * | 2012-09-24 | 2013-04-17 | 天津市鸿峰麟节能设备技术有限公司 | Energy-saving circulating water pump for oxygen production circulating water system |
| CN202883465U (en) * | 2012-09-24 | 2013-04-17 | 天津市鸿峰麟节能设备技术有限公司 | Double-phase impeller for water circulating pump for oxygen preparation |
| CN204152858U (en) * | 2014-10-22 | 2015-02-11 | 沈阳市工业泵厂(有限公司) | The quickly dismantled circulating water pump of a kind of waste incineration and generating electricity system |
| CN204458382U (en) * | 2015-03-10 | 2015-07-08 | 江苏创进泵阀制造有限公司 | The vertical anti-plugging self-priming pump of a kind of novel intelligent |
| CN204553242U (en) * | 2015-03-31 | 2015-08-12 | 陕西海点智能科技有限公司 | A kind of circulating water pump |
| CN205277847U (en) * | 2015-12-30 | 2016-06-01 | 中国神华能源股份有限公司 | Circulating water pump |
-
2015
- 2015-12-30 CN CN201511020638.2A patent/CN105650000A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187689Y (en) * | 1994-04-12 | 1995-01-18 | 郑州诚信电站装备产业科技有限公司 | Energy-saving double-suction centrifugal circulation water pump |
| CN2195635Y (en) * | 1994-08-08 | 1995-04-26 | 冯炎 | Safety energy-saving single-stage double-suction centrifugal water pump |
| CN2225562Y (en) * | 1995-06-28 | 1996-04-24 | 张新维 | Booster water pump |
| CN101418814A (en) * | 2008-09-25 | 2009-04-29 | 长沙天鹅工业泵股份有限公司 | Core-loosing highly effective energy-conserving vertical diagonal flow pump |
| CN201802678U (en) * | 2010-07-12 | 2011-04-20 | 大连四方佳特流体设备有限公司 | Medicine pump |
| CN201972928U (en) * | 2011-02-21 | 2011-09-14 | 陈招锋 | Novel double-suction pump for cooling circulation water |
| CN202883464U (en) * | 2012-09-24 | 2013-04-17 | 天津市鸿峰麟节能设备技术有限公司 | Energy-saving circulating water pump for oxygen production circulating water system |
| CN202883465U (en) * | 2012-09-24 | 2013-04-17 | 天津市鸿峰麟节能设备技术有限公司 | Double-phase impeller for water circulating pump for oxygen preparation |
| CN204152858U (en) * | 2014-10-22 | 2015-02-11 | 沈阳市工业泵厂(有限公司) | The quickly dismantled circulating water pump of a kind of waste incineration and generating electricity system |
| CN204458382U (en) * | 2015-03-10 | 2015-07-08 | 江苏创进泵阀制造有限公司 | The vertical anti-plugging self-priming pump of a kind of novel intelligent |
| CN204553242U (en) * | 2015-03-31 | 2015-08-12 | 陕西海点智能科技有限公司 | A kind of circulating water pump |
| CN205277847U (en) * | 2015-12-30 | 2016-06-01 | 中国神华能源股份有限公司 | Circulating water pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019244590A1 (en) * | 2018-06-22 | 2019-12-26 | 株式会社荏原製作所 | Double suction volute pump |
| US11441576B2 (en) | 2018-06-22 | 2022-09-13 | Ebara Corporation | Double-suction centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103521861B (en) | Based on blisk profile electrolytic machining device and the method for three-dimensional complex wake | |
| WO2021052013A1 (en) | High-efficiency, low-noise automobile electronic water pump | |
| CN101639085A (en) | Energy-saving device and energy-saving method by regulating front guide vanes of centrifugal pump | |
| US11739642B2 (en) | Manufacturing method of 3-dimensional plastic impeller of centrifugal pump and the impeller | |
| CN105545833B (en) | A kind of energy-saving lathe hydraulic power unit and its drive method | |
| CN108087291B (en) | High-lift long-blade molded line rear cavity structure centrifugal pump | |
| CN108453479B (en) | A kind of processing technology assisting the pump housing | |
| CN105650000A (en) | Circulating water pump and method for transforming same | |
| CN203540661U (en) | Double-screw plastic grinding extrusion machine | |
| CN205277847U (en) | Circulating water pump | |
| CN203717459U (en) | Energy-saving forced self-circulating type sealing cooling device for pump | |
| CN101545491A (en) | Boiler water-feeding pump | |
| CN203161640U (en) | Corrosion-resisting centrifugal pump | |
| CN204942089U (en) | A kind of through-flow pump diffusion diffuser | |
| CN208311135U (en) | A kind of late-model inline pump | |
| CN201916210U (en) | High-efficiency energy-saving self-priming pump | |
| CN205001205U (en) | Multistage section of thick bamboo pocket type centrifugal pump of high efficiency high pressure | |
| CN202066871U (en) | Flow indicator | |
| CN221195412U (en) | End suction centrifugal pump structure convenient to overhaul | |
| CN206839620U (en) | Processing jig | |
| CN216306233U (en) | Horizontal permanent magnet end suction centrifugal pump | |
| CN106321169B (en) | Mesolow closes the dividing plate of cylinder | |
| CN205678092U (en) | A kind of water pump pulley component | |
| CN204226220U (en) | Double suction canned motorpump | |
| CN200940709Y (en) | High and low pressure switch valve for concrete transport pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |