CN106609759A - Leak-free centrifugal pump - Google Patents

Leak-free centrifugal pump Download PDF

Info

Publication number
CN106609759A
CN106609759A CN201611015869.9A CN201611015869A CN106609759A CN 106609759 A CN106609759 A CN 106609759A CN 201611015869 A CN201611015869 A CN 201611015869A CN 106609759 A CN106609759 A CN 106609759A
Authority
CN
China
Prior art keywords
pump
rotating shaft
cover
oil sealing
pump cover
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
CN201611015869.9A
Other languages
Chinese (zh)
Inventor
张明
陈建章
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 JIANGDA PUMP INDUSTRY MANUFACTURE Co Ltd
Original Assignee
JIANGSU JIANGDA PUMP INDUSTRY MANUFACTURE 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 JIANGDA PUMP INDUSTRY MANUFACTURE Co Ltd filed Critical JIANGSU JIANGDA PUMP INDUSTRY MANUFACTURE Co Ltd
Priority to CN201611015869.9A priority Critical patent/CN106609759A/en
Publication of CN106609759A publication Critical patent/CN106609759A/en
Pending legal-status Critical Current

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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • 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
    • F04D29/20—Mounting rotors on shafts
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

The invention relates to a leak-free centrifugal pump. The leak-free centrifugal pump comprises a pump casing, wherein a water outlet and a water inlet are formed in the pump casing; a rotating shaft is arranged in the pump casing; a working impeller is arranged at the end part of an extending end of the rotating shaft; a pump cover is arranged on the end face of one side of the pump casing; the rotating shaft penetrates through and is connected with the pump cover; a shaft sleeve sleeves the rotating shaft; a labyrinth seal and an oil seal are sequentially arranged between the shaft sleeve and the inner hole wall of the end cover from inside to outside; an oil seal gland is arranged on the outer end face of the pump cover and extrudes the oil seal; and a sealing impeller is arranged between the working impeller and the pump cover and is fixedly arranged on the rotating shaft.

Description

One kind is without leakage centrifugal pump
Technical field
The present invention relates to a kind of centrifugal pump, and in particular to a kind of without leakage centrifugal pump.
Background technology
Traditional centrifugal pump contains only running wheel and mechanical seal or packing seal, and packing seal is when running one section Between or spent running-in period and will result in leakage, mechanical seal will also result in leakage using a period of time.Improve the maintenance frequency of pump Rate and maintenance cost.
The content of the invention
It is an object of the invention to provide a kind of good seal performance without reveal centrifugal pump.
The technical scheme that the present invention takes is:
A kind of No leakage centrifugal pump, including pump case, pump case are provided with outlet and water inlet, and rotating shaft, rotating shaft are provided with pump case Inserting end end running wheel is installed, pump cover is installed on the end face of pump case side, rotating shaft is worn and connects pump cover, is cased with rotating shaft Axle sleeve, is sequentially installed with labyrinth seal and oil sealing from inside to outside, is provided with the outer face of end cap between axle sleeve and pump cover inner hole wall Oil sealing cover, oil sealing cover extruding oil sealing are provided with sealing impeller, sealing impeller fixed installation between the running wheel and pump cover In rotating shaft.
After taking above technical scheme, beneficial effects of the present invention are：Pump operationally, is revolved due to sealing the synchronous of impeller Turn, produce with after the same pressure of running wheel, just balance the pressure of pump generation, simultaneously because the effect of labyrinth seal is avoided The possibility that pumped (conveying) medium flows to annular seal space, when out of service, now pump is in needing static seal state, then installed oil additional for pump It is honored as a queen, it is ensured that the dead-tight possibility of liquid, so as to ensure that the stable operation of equipment.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
The specific embodiment of the present invention is further described below in conjunction with accompanying drawing
As illustrated, a kind of No leakage centrifugal pump, including pump case 1, pump case 1 is provided with outlet 2 and water inlet 3, peace in pump case 1 Equipped with rotating shaft 4, the inserting end end of rotating shaft 4 is provided with running wheel 5, pump cover 6, rotating shaft 4 is provided with the end face of 1 side of pump case Wear and connect pump cover 6, in rotating shaft 4, be cased with axle sleeve 7, be sequentially installed between 1 inner hole wall of axle sleeve 7 and end cap from inside to outside labyrinth seal 8 and Oil sealing 9, is provided with oil sealing cover 10, the extruding oil sealing 9 of oil sealing cover 10, the running wheel 5 and pump cover on the outer face of pump cover 6 Sealing impeller 11 is provided between 6, sealing impeller 11 is fixedly installed in rotating shaft 4.

Claims (1)

1. a kind of No leakage centrifugal pump, including pump case, pump case are provided with outlet and water inlet, and rotating shaft is provided with pump case, turn The inserting end end of axle is provided with running wheel, and pump cover is provided with the end face of pump case side, and rotating shaft is worn and connects pump cover, covers in rotating shaft There is axle sleeve, between axle sleeve and pump cover inner hole wall, be sequentially installed with labyrinth seal and oil sealing from inside to outside, install on the outer face of end cap There is oil sealing cover, oil sealing cover extruding oil sealing is provided with sealing impeller between the running wheel and pump cover, sealing impeller fixes peace Loaded on rotating shaft.
CN201611015869.9A 2016-11-18 2016-11-18 Leak-free centrifugal pump Pending CN106609759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611015869.9A CN106609759A (en) 2016-11-18 2016-11-18 Leak-free centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611015869.9A CN106609759A (en) 2016-11-18 2016-11-18 Leak-free centrifugal pump

Publications (1)

Publication Number Publication Date
CN106609759A true CN106609759A (en) 2017-05-03

Family

ID=58636232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611015869.9A Pending CN106609759A (en) 2016-11-18 2016-11-18 Leak-free centrifugal pump

Country Status (1)

Country Link
CN (1) CN106609759A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110552889A (en) * 2019-10-14 2019-12-10 蒋友锋 Leakage-free centrifugal pump
CN112610505A (en) * 2020-11-26 2021-04-06 河南航天液压气动技术有限公司 Direct-current brushed electric fuel centrifugal pump for aviation and testing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1054120A (en) * 1990-02-17 1991-08-28 张明诗 Heavy corrosion-resistant power saving high efficient centrifugal pump
CN201582184U (en) * 2009-10-20 2010-09-15 山东双轮股份有限公司 Combined type shaft seal device of centrifugal pump
CN202451428U (en) * 2012-02-09 2012-09-26 东营华泰化工集团有限公司 Chemical engineering leakage-free corrosion resisting centrifugal pump
CN203146405U (en) * 2013-01-08 2013-08-21 安徽三联泵业股份有限公司 Power sealing structure of centrifugal pump
CN204312360U (en) * 2014-10-20 2015-05-06 江苏凯恩斯泵阀有限公司 The dynamic seal structure of pulp pump
CN206234124U (en) * 2016-11-18 2017-06-09 江苏江大泵业制造有限公司 A kind of No leakage centrifugal pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1054120A (en) * 1990-02-17 1991-08-28 张明诗 Heavy corrosion-resistant power saving high efficient centrifugal pump
CN201582184U (en) * 2009-10-20 2010-09-15 山东双轮股份有限公司 Combined type shaft seal device of centrifugal pump
CN202451428U (en) * 2012-02-09 2012-09-26 东营华泰化工集团有限公司 Chemical engineering leakage-free corrosion resisting centrifugal pump
CN203146405U (en) * 2013-01-08 2013-08-21 安徽三联泵业股份有限公司 Power sealing structure of centrifugal pump
CN204312360U (en) * 2014-10-20 2015-05-06 江苏凯恩斯泵阀有限公司 The dynamic seal structure of pulp pump
CN206234124U (en) * 2016-11-18 2017-06-09 江苏江大泵业制造有限公司 A kind of No leakage centrifugal pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110552889A (en) * 2019-10-14 2019-12-10 蒋友锋 Leakage-free centrifugal pump
CN112610505A (en) * 2020-11-26 2021-04-06 河南航天液压气动技术有限公司 Direct-current brushed electric fuel centrifugal pump for aviation and testing method thereof

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Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170503

WD01 Invention patent application deemed withdrawn after publication