CN102720696A - Preheating water pump - Google Patents

Preheating water pump Download PDF

Info

Publication number
CN102720696A
CN102720696A CN2012101997808A CN201210199780A CN102720696A CN 102720696 A CN102720696 A CN 102720696A CN 2012101997808 A CN2012101997808 A CN 2012101997808A CN 201210199780 A CN201210199780 A CN 201210199780A CN 102720696 A CN102720696 A CN 102720696A
Authority
CN
China
Prior art keywords
pump
cover
bearing
impeller
shaft
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
Application number
CN2012101997808A
Other languages
Chinese (zh)
Inventor
秦苏宏
陈柯敏
张林琳
夏磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU FEIYUE MACHINE PUMP MANUFACTURING Co Ltd
Original Assignee
JIANGSU FEIYUE MACHINE PUMP MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU FEIYUE MACHINE PUMP MANUFACTURING Co Ltd filed Critical JIANGSU FEIYUE MACHINE PUMP MANUFACTURING Co Ltd
Priority to CN2012101997808A priority Critical patent/CN102720696A/en
Publication of CN102720696A publication Critical patent/CN102720696A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a preheating water pump. A last-stage impeller is arranged in an inner cavity of a pump body, one end of the last-stage impeller is provided with a guide blade, an impeller spacing sleeve is arranged on an inner cavity pump shaft arranged between the guide blade and the last-stage impeller, and two ends of the guide blade are respectively provided with a first-stage impeller and the last-stage impeller; one end of the pump body is connected with a front pump cover, a front lining plate is arranged between the front pump cover and the first-stage impeller, and a screw bolt passes through the front lining plate to be fixed on the front pump cover; an induction wheel is arranged in the inner cavity of the front pump cover, a screw passes through the induction wheel for connecting the induction wheel with a pump shaft, the pump shaft is positioned in the center of the pump body, and an inlet lining is arranged between the front pump cover and the induction wheel; the other end of the last-stage impeller is provided with a back lining plate, the other end of the back lining plate is provided with a back pump cover, a shaft sleeve is arranged in the back lining plate and an inner cavity of the back pump cover and is fixedly arranged on the pump shaft through a screw nut, and a mechanical seal is arranged between the back pump cover and the shaft sleeve, is fixed by a sealing press cover and is tightly locked by a screw; the other end of the pump body is connected with a bearing seat, a bearing A and a bearing B are arranged in an inner cavity of the bearing seat, the outer ends of the bearing A and the bearing B are respectively provided with an end cover, the end covers are tightly locked by screws, grooves are arranged on the end covers, and a convex block arranged on the cooling stifling cover extends into a groove of the end cover; and the other end of the pump shaft is provided with a connecting sleeve. The preheating water pump has the characteristics of pumps with high net positive suction head resistance performance and conforms to the requirements of the modern preheating water pump industry in aspects of high efficiency, energy saving, reliable operation, no fault, long time, no leakage, maintenance convenience and the like.

Description

The preheating water pump
Technical field:
The present invention relates to pump, particularly relate to preheating water pump with efficient, safe high-cavitation-resistance ability.
Background technique:
FZAM series preheating water pump is mainly used in carries the Heisui River of solid content 10% below, and temperature≤120 ℃ are contained little amount of N H3, H2S, CO2, chlorion simultaneously, easy fouling, and medium is corrosive.The cavitation of pump, abrasion and symphyogenetic destruction thereof are major issues in pump operation, maintenance and the management work always, and conventional surface protective material and technology can not satisfy the requirement of water pump anti-cavitation, abrasion far away.Summary of the invention:
The object of the invention will provide a kind of preheating water pump exactly, and it has the performance of high anti-cavitation, abrasion, solves the existing problem of existing product.The objective of the invention is to realize like this; The preheating water pump; Comprise pump shaft, the pump housing, axle sleeve, bearing A, bearing B and bearing cap, it is characterized in that: be provided with impeller in the inner chamber of the pump housing, an end of impeller is provided with stator; Inner chamber pump shaft between stator and the impeller is provided with between impeller and overlaps, and the two ends of stator are respectively arranged with first stage impeller and impeller; One end of the pump housing connects with front pump cover, is provided with preceding liner plate between front pump cover and the first stage impeller, and liner plate was fixed on the front pump cover before bolt passed; Be provided with inducer in the inner chamber of front pump cover, and pass inducer by screw and link to each other with pump shaft, pump shaft is positioned at the central authorities of the pump housing, is provided with the import lining between front pump cover and the inducer; The other end of impeller is provided with rear lining plate; The other end of rear lining plate is provided with rear pump cover; Be provided with axle sleeve in the inner chamber of rear lining plate and rear pump cover and be fixed on the pump shaft, be provided with mechanical seal between rear pump cover and the axle sleeve and lock by the sealing gland set screw by nut; The other end of the described pump housing connects with bearing support; Be provided with bearing A and bearing B in the inner chamber of bearing support; The outer end of bearing A and bearing B is respectively arranged with end cap and by screw lock, end cap is provided with groove, and the projection on the cooling stifle stretches in the groove of end cap; The other end of pump shaft is provided with joint sleeve.
The preheating water pump has the custom-designed a kind of novel slow-speed of revolution of characteristics of the pump of high anti-cavitation surplus performance, low cavitation, corrosion resistant, wear-resisting type pump, meets modern preheating water pump industry: efficient, energy-conservation, reliable, fault-free, time be long, do not have and requirement such as leak, easy to maintenance.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
1, front pump cover, 2, the import lining, 3, inducer, 4, preceding liner plate, 5, first stage impeller, 6, stator; 7, overlap 8, impeller, 9, rear lining plate, 10, rear pump cover, 11, the pump housing between impeller; 12, axle sleeve, 13, mechanical seal, 14, sealing gland, 15, nut, 16, the cooling stifle; 17, bearing A, 18, pump shaft, 19, bearing B, 20, bearing cap, 21, joint sleeve.
Embodiment:
Below in conjunction with accompanying drawing the present invention is described further;
The preheating water pump; Comprise pump shaft 18, the pump housing 11, axle sleeve 12, bearing A17, bearing B19 and bearing cap 20; It is characterized in that: be provided with impeller 8 in the inner chamber of the pump housing 11, an end of impeller 8 is provided with stator 6, and the inner chamber pump shaft 18 between stator 6 and the impeller 8 is provided with and overlaps 7 between impeller; The two ends of stator 6 are respectively arranged with first stage impeller 5 and impeller 8; One end of the pump housing 11 connects with front pump cover 1, and liner plate 4 was fixed on the front pump cover 1 before liner plate 4 before being provided with between front pump cover 1 and the first stage impeller 5, bolt passed; Be provided with inducer 3 in the inner chamber of front pump cover 1, and pass inducer 3 by screw and link to each other with pump shaft 18, pump shaft 18 is positioned at the central authorities of the pump housing 11, is provided with import lining 2 between front pump cover 1 and the inducer 3; The other end of impeller 8 is provided with rear lining plate 9; The other end of rear lining plate 9 is provided with rear pump cover 10; Be provided with axle sleeve 12 in the inner chamber of rear lining plate 9 and rear pump cover 10 and be fixed on the pump shaft 18, be provided with mechanical seal 13 between rear pump cover 10 and the axle sleeve 12 and lock by sealing gland 14 set screws by nut; The other end of the described pump housing 11 connects with bearing support; Be provided with bearing A17 and bearing B19 in the inner chamber of bearing support; The outer end of bearing A17 and bearing B19 is respectively arranged with end cap 20 and by screw lock, end cap 20 is provided with groove, and the projection on the cooling stifle 16 stretches in the groove of end cap 20; The other end of pump shaft 18 is provided with joint sleeve 21.
During practical implementation, import design inducer reduces mercury vapour erosion surplus.Because lift is higher, adopt the single-stage impeller diameter bigger, render a service shortcomings such as low; Both stage impellers is adopted in design, and first stage impeller is mainly considered the cavitation influence, and sencond stage impeller considers to improve pressure; So separately design is not only satisfied the requirement of net positive suction head but also has been improved pump efficiency, and peak efficiency reaches 75%; Adopt cantilever structure, help anti-cavitation; Thin oil lubricant is adopted in transmission; Be sealed into the flushing of plan32 scheme, sealing has good environment, improves the pump operation cycle; Impeller has good solid particle passing capacity, is easy to the cleaning of crystallization medium especially, and helps containing the unlikely generation blocking phenomenon of passing through of solid medium; Two impellers are equipped with back blade, and back blade balancing axial thrust and reduction medium are at axial leakage pressure, to improve the reliability and the working life of sealing.Stator radially, guide vane plays pumping chamber, and return guide vane has removed the pumping chamber effect, underspeeds, and eliminates outside the liquid in rotation component, also plays the suction chamber effect of introducing liquid in subordinate's impeller.

Claims (1)

1. preheating water pump; Comprise pump shaft (18), the pump housing (11), axle sleeve (12), bearing A (17), bearing B (19) and bearing cap (20); It is characterized in that: be provided with impeller (8) in the inner chamber of the pump housing (11); One end of impeller (8) is provided with stator (6); Inner chamber pump shaft (18) between stator (6) and the impeller (8) is provided with cover (7) between impeller, and the two ends of stator (6) are respectively arranged with first stage impeller (5) and impeller (8), and an end of the pump housing (11) connects with front pump cover (1); Be provided with preceding liner plate (4) between front pump cover (1) and the first stage impeller (5), bolt passes preceding liner plate (4) and is fixed on the front pump cover (1); Be provided with inducer (3) in the inner chamber of front pump cover (1), and pass inducer (3) by screw and link to each other with pump shaft (18), pump shaft (18) is positioned at the central authorities of the pump housing (11), is provided with import lining (2) between front pump cover (1) and the inducer (3); The other end of impeller (8) is provided with rear lining plate (9); The other end of rear lining plate (9) is provided with rear pump cover (10); Be provided with axle sleeve (12) in the inner chamber of rear lining plate (9) and rear pump cover (10) and be fixed on the pump shaft (18), be provided with mechanical seal (13) between rear pump cover (10) and the axle sleeve (12) and lock by sealing gland (14) set screw by nut; The other end of the described pump housing (11) connects with bearing support; Be provided with bearing A (17) and bearing B (19) in the inner chamber of bearing support; The outer end of bearing A (17) and bearing B (19) is respectively arranged with end cap (20) and by screw lock; End cap (20) is provided with groove, and the projection on the cooling stifle (16) stretches in the groove of end cap (20); The other end of pump shaft (18) is provided with joint sleeve (21).
CN2012101997808A 2012-06-18 2012-06-18 Preheating water pump Pending CN102720696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101997808A CN102720696A (en) 2012-06-18 2012-06-18 Preheating water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101997808A CN102720696A (en) 2012-06-18 2012-06-18 Preheating water pump

Publications (1)

Publication Number Publication Date
CN102720696A true CN102720696A (en) 2012-10-10

Family

ID=46946534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101997808A Pending CN102720696A (en) 2012-06-18 2012-06-18 Preheating water pump

Country Status (1)

Country Link
CN (1) CN102720696A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979737A (en) * 2012-11-07 2013-03-20 无锡惠山泵业有限公司 Heating water pump
CN108386365A (en) * 2018-02-08 2018-08-10 江苏大学镇江流体工程装备技术研究院 A kind of compact segment nest shell integral type high speed canned motor pump
CN109538491A (en) * 2018-10-30 2019-03-29 浙江水利水电学院 A kind of centrifugal multistage pump multiple centrifugal pump and its installation method with inducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521151A (en) * 1980-03-07 1985-06-04 Joy Manufacturing Holdings Limited Centrifugal slurry pump
CN2844522Y (en) * 2005-01-31 2006-12-06 江苏飞跃机泵制造有限公司 Slag slurry pump
CN2859041Y (en) * 2005-12-28 2007-01-17 郑州电力机械厂 Water supplying pump for pressure boiler
CN201180662Y (en) * 2008-03-14 2009-01-14 江苏双达泵阀集团有限公司 Slurry pump
CN202707595U (en) * 2012-06-18 2013-01-30 江苏飞跃机泵制造有限公司 Inducer for preheating water pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521151A (en) * 1980-03-07 1985-06-04 Joy Manufacturing Holdings Limited Centrifugal slurry pump
CN2844522Y (en) * 2005-01-31 2006-12-06 江苏飞跃机泵制造有限公司 Slag slurry pump
CN2859041Y (en) * 2005-12-28 2007-01-17 郑州电力机械厂 Water supplying pump for pressure boiler
CN201180662Y (en) * 2008-03-14 2009-01-14 江苏双达泵阀集团有限公司 Slurry pump
CN202707595U (en) * 2012-06-18 2013-01-30 江苏飞跃机泵制造有限公司 Inducer for preheating water pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979737A (en) * 2012-11-07 2013-03-20 无锡惠山泵业有限公司 Heating water pump
CN108386365A (en) * 2018-02-08 2018-08-10 江苏大学镇江流体工程装备技术研究院 A kind of compact segment nest shell integral type high speed canned motor pump
CN109538491A (en) * 2018-10-30 2019-03-29 浙江水利水电学院 A kind of centrifugal multistage pump multiple centrifugal pump and its installation method with inducer

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Application publication date: 20121010