CN103321937B - Anti-reflux forced-circulation efficient axial flow pump - Google Patents
Anti-reflux forced-circulation efficient axial flow pump Download PDFInfo
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- CN103321937B CN103321937B CN201310252389.4A CN201310252389A CN103321937B CN 103321937 B CN103321937 B CN 103321937B CN 201310252389 A CN201310252389 A CN 201310252389A CN 103321937 B CN103321937 B CN 103321937B
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- pump housing
- backflow device
- main shaft
- inner chamber
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Abstract
The present invention relates to pump, particularly relate to a kind of Anti-reflux forced-circulation efficient axial flow pump, it comprises main shaft, the pump housing; The pump housing is connected with short tube by bolt, and forms inner chamber; The main shaft of inner chamber is disposed with impeller, axle sleeve, anti-backflow device, mechanical seal from right to left, and is supported by bearing unit.Invention increases operational efficiency, enhance wear-resisting property and corrosion resistant performance, extend maintenance period, greatly reduce cost of production.
Description
Technical field
The present invention relates to pump, particularly relate to a kind of Anti-reflux forced-circulation efficient axial flow pump, it is applicable to the forced circulation system of vaporizer in the industries such as vacuum salt production, aluminium oxide, phosphoric acid, phosphorus ammonium, caustic soda, light industry, also can make the recycle pump of crystallizer, reactor.
Background technique
By the actual investigation to domestic each evaporator in alumina plant forced circulation pump, no matter be the conventional construction pump that import or domestic forced circulation pump are nonreactive reflux.Medium of its conveying is made up of Al (OH) solution of Na CO ﹑ 140 ~ 150g/l of the NaOH ﹑ 20g/l of 300 ~ 320g/l and the solid particle of 50 ~ 100g/l.Medium due to conveying has strong basicity, the solid particularity containing high, easy fouling, need 130 ~ 140 DEG C of high temperature and Internal Flow in Axial Pumps etc., therefore there is following subject matter: the mechanical seal life-span is extremely short, it is most of that less than three months main shafts, just abrasion was serious, flow passage part cavitation medium, efficiency is low, there will be pump shaft fracture time serious, cause serious equipment accident.And secondary back intrinsic in axial-flow pump has the most direct relation to working life of gland seal device, pump work performance and security and stability and frictional loss.Therefore, under equal operating mode, in pump, the secondary back of zones of different is the root of the problems referred to above.
Summary of the invention
Object of the present invention will provide a kind of Anti-reflux forced-circulation efficient axial flow pump exactly, and it can overcome the above defect existing for existing forced circulation pump.
The object of the present invention is achieved like this: Anti-reflux forced-circulation efficient axial flow pump, comprises main shaft, the pump housing, it is characterized in that: the pump housing is connected with short tube by bolt, and form inner chamber; The main shaft of inner chamber is disposed with impeller, axle sleeve, anti-backflow device, mechanical seal from right to left, and is supported by bearing unit.
Anti-backflow device is provided with in pump housing wheel hub.
One end of described anti-backflow device is set to spiral chute and spiral force points to impeller direction, and the other end is set to streamlined and fairshaped concave surface and points to impeller direction.
The present invention devises a band spiral chute and the anti-backflow device of spiral force sensing impeller in pump housing wheel hub, change the distribution of pump internal spiral stream completely, this reflux solves the problem of clearance backflow, simultaneously, fluid effectively stops outside mechanical seal by the spiral force produced due to spiral chute, making the working life of mechanical seal from original average less than three months, brought up to more than ten months, is more than 3 times of original axial-flow pump working life; In addition, wherein one end due to anti-backflow device is set to streamlined and fairshaped concave surface and points to impeller direction, many recirculating zones helical source of original axial-flow pump is destroyed or reduce, when Operational Limits is constant, running current drops to 298 ~ 305A from original 330 ~ 340A, and operational efficiency on average improves about 10%; Pump housing perforation wheel hub section is provided with axle sleeve, protection main shaft, anti-backflow device can not only be played, also play the effect of location anti-backflow device; enhance wear-resisting property and corrosion resistance; reduce noise, improve the working life of bearing, greatly reduce cost of production.
Accompanying drawing explanation
Fig. 1 is conventional forced circulation pump structure schematic diagram;
Fig. 2 is structural representation of the present invention;
In figure: 1, bearing; 2, bearing housing; 3, main shaft; 4, mechanical seal; 5, anti-backflow device; 6, axle sleeve; 7, the pump housing; 8, impeller; 9, short tube, 10, many recirculating zones, 11, pump housing wheel hub.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
With reference to accompanying drawing, Anti-reflux forced-circulation efficient axial flow pump, comprises main shaft 3, the pump housing 7, it is characterized in that: the pump housing 7 is connected with short tube 9 by bolt, and forms inner chamber; The main shaft 1 of inner chamber is disposed with impeller 8, axle sleeve 6, anti-backflow device 5, mechanical seal 4 from right to left, and is supported by bearing unit.Anti-backflow device 5 is provided with in pump housing wheel hub.One end of described anti-backflow device 5 is set to spiral chute and spiral force points to impeller direction, and the other end is set to streamlined and fairshaped concave surface and points to impeller direction.During concrete enforcement, the present invention devises a band spiral chute and the anti-backflow device of spiral force sensing impeller in pump housing wheel hub, this reflux changes the distribution of pump internal spiral stream completely, solve the problem of clearance backflow, meanwhile, fluid effectively stops outside mechanical seal by the spiral force produced due to spiral chute, makes the working life of mechanical seal from original average less than three months, having brought up to more than ten months, is more than 3 times of original working life; Secondly, wherein one end due to anti-backflow device is set to streamlined and fairshaped concave surface and points to impeller direction, many recirculating zones helical source of original axial-flow pump is destroyed or reduce, when Operational Limits is constant, running current drops to 298 ~ 305A from original 330 ~ 340A, and operational efficiency on average improves about 10%; Pump housing perforation wheel hub section is provided with axle sleeve, protection main shaft, anti-backflow device can not only be played, also play the effect of location anti-backflow device, enhance wear resistance and rotproofness, reduce noise, improve the working life of bearing.The present invention is on the basis of introduction, digestion, improve and improve, while optimal design, for the defect that existing alumina industry vaporizer pump circulation axial-flow pump exists, devise one and there is complete autonomous innovation, can substitute the novel energy-conserving " Anti-reflux forced-circulation efficient axial flow pump " of same kind of products at abroad, from the end of the year 2009, the external axial-flow pump substituted on former post at many alumina factorys will respectively run so far.Facts have proved, through many enterprises' production run of nearly 4 years, be industry energy conservation synergy, cost-saving, environmental protect, extends the plant maintenance cycle, having made tremendous contribution, obtained the consistent favorable comment of user, is a kind of novel high-efficiency and energy-saving product be worthy to be popularized.
Claims (1)
1. Anti-reflux forced-circulation efficient axial flow pump, comprises main shaft (3), the pump housing (7), it is characterized in that: the described pump housing (7) is connected with short tube (9) by bolt, and forms inner chamber; The main shaft (1) of inner chamber is disposed with impeller (8), axle sleeve (6), anti-backflow device (5), mechanical seal (4) from right to left, and is supported by bearing unit; Anti-backflow device (5) is provided with in pump housing wheel hub; One end of described anti-backflow device (5) is set to spiral chute and spiral force points to impeller direction, the other end is set to streamlined and fairshaped concave surface and points to impeller direction, fluid effectively stops outside mechanical seal by the spiral force that spiral chute is produced, and many recirculating zones helical source is destroyed or reduces; Pump housing perforation wheel hub section is provided with axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310252389.4A CN103321937B (en) | 2013-06-24 | 2013-06-24 | Anti-reflux forced-circulation efficient axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310252389.4A CN103321937B (en) | 2013-06-24 | 2013-06-24 | Anti-reflux forced-circulation efficient axial flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321937A CN103321937A (en) | 2013-09-25 |
| CN103321937B true CN103321937B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310252389.4A Active CN103321937B (en) | 2013-06-24 | 2013-06-24 | Anti-reflux forced-circulation efficient axial flow pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103321937B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194767A (en) * | 2016-08-05 | 2016-12-07 | 江苏亚梅泵业集团有限公司 | A kind of anticorrosive anti-wear circulating pump and installation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546656Y (en) * | 2001-11-16 | 2003-04-23 | 徐瑞堂 | Vertical acid and alkali-proof pump connected with special outlet and inlet |
| CN201858196U (en) * | 2010-10-25 | 2011-06-08 | 江苏双达泵阀集团有限公司 | Forced circulating pump |
| CN102384108A (en) * | 2010-08-31 | 2012-03-21 | 杨燕 | Waste acid concentrating axial-flow pump body |
| CN202673694U (en) * | 2012-05-11 | 2013-01-16 | 唐维 | Rotor pump |
| CN203335454U (en) * | 2013-06-24 | 2013-12-11 | 江苏英特泵阀制造有限公司 | Anti-backflow forced circulation efficient axial flow pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004092439A (en) * | 2002-08-29 | 2004-03-25 | Ebara Corp | Vertical shaft pump |
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2013
- 2013-06-24 CN CN201310252389.4A patent/CN103321937B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2546656Y (en) * | 2001-11-16 | 2003-04-23 | 徐瑞堂 | Vertical acid and alkali-proof pump connected with special outlet and inlet |
| CN102384108A (en) * | 2010-08-31 | 2012-03-21 | 杨燕 | Waste acid concentrating axial-flow pump body |
| CN201858196U (en) * | 2010-10-25 | 2011-06-08 | 江苏双达泵阀集团有限公司 | Forced circulating pump |
| CN202673694U (en) * | 2012-05-11 | 2013-01-16 | 唐维 | Rotor pump |
| CN203335454U (en) * | 2013-06-24 | 2013-12-11 | 江苏英特泵阀制造有限公司 | Anti-backflow forced circulation efficient axial flow pump |
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| Publication number | Publication date |
|---|---|
| CN103321937A (en) | 2013-09-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti reflux forced circulation high-efficiency axial flow pump Effective date of registration: 20230803 Granted publication date: 20160302 Pledgee: Bank of Jiangsu Co.,Ltd. Taizhou Branch Pledgor: JIANGSU YINGTE PUMP & VALVE MANUFACTURING CO.,LTD. Registration number: Y2023980050663 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |