CN106401946A - Screw type immersible pump with long service life - Google Patents

Screw type immersible pump with long service life Download PDF

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Publication number
CN106401946A
CN106401946A CN201610813669.1A CN201610813669A CN106401946A CN 106401946 A CN106401946 A CN 106401946A CN 201610813669 A CN201610813669 A CN 201610813669A CN 106401946 A CN106401946 A CN 106401946A
Authority
CN
China
Prior art keywords
screw
screw rod
cavity
pump
immersible pump
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
CN201610813669.1A
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Chinese (zh)
Inventor
不公告发明人
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201610813669.1A priority Critical patent/CN106401946A/en
Publication of CN106401946A publication Critical patent/CN106401946A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a screw type immersible pump with the long service life. The screw type immersible pump with the long service life comprises a shell with a screw cavity, and a set of screws arranged in the screw cavity, wherein the lower ends of the screws are connected with a water inlet passage, and the upper ends of the screws are connected with a water outlet passage; the front end and the rear end of each screw shaft are supported by bearings; the screw shafts are connected with a first motor through a transmission mechanism; pressure regulation cavities are arranged in the positions, at the rear ends of the screw shafts, of the shell, the rear ends of the screw shafts are inserted into the pressure regulation cavities, and sealing packing is embedded in the gaps between the pressure regulation cavities and the screw shafts; and an annular groove is formed along the peripheral wall of the upper portion of the screw cavity and communicates with the pressure regulation cavities through pipelines. Water pressure at the front end of the screw pump is introduced to the rear ends of the screw shafts to push the screw shafts upwards so that high recoil force on the screws can be resisted and the stress of the screw shafts can be relatively balanced. Therefore, the loads on the bearings are lowered, abrasion to the bearings is lowered, the service life of the immersible pump is prolonged, and a guarantee is provided for further improving the rotation speed of the screw pump.

Description

The longer screw immersible pump of service life
Technical field
The present invention relates to a kind of immersible pump, particularly a kind of screw immersible pump.
Background technology
Immersible pump is the visual plant of deep-well water lift, is widely used in industrial or agricultural.
In general, water pump can be divided into according to drainage principle：First, impeller pump, such as：Centrifugal pump, mixed-flow pump, axial-flow pump Deng, Turo pump；2nd, displacement pump, such as：Plunger displacement pump, gear pump, screw pump, vane pump etc.；3rd, other types, such as：Jet pump, water Hammer pump etc..
Screw pump belongs to displacement pump, and lift high single current amount is few, is particularly suitable for and loose thick liquid.When screw rod high-speed rotation When, rear end bearing is subject to larger pressure, accelerated wear test, also limit the rotating speed of screw pump simultaneously.Bearing pressure mainly comes From in the reaction force of screw rod, and for a screw submersible pump, this reaction force is mainly by rotating speed and outlet pressures Determine.When needing high rotating speed, preferable solution is the pressure reducing the port of export realizing.However, in the face of big lift Demand, reducing outlet pressures becomes a difficult problem.
Content of the invention
It is an object of the invention to：Overcome the defect of above-mentioned prior art, propose a kind of screw immersible pump.
In order to achieve the above object, screw immersible pump proposed by the present invention, including the housing with screw rod cavity, is arranged One group of screw rod in screw rod cavity, described screw rod lower end is connected with inlet channel, and upper end is connected with water outlet, two before and after screw shaft End by bearings, screw shaft pass through transmission mechanism connection the first motor it is characterised in that：On the housing of described screw rod shaft rear end It is provided with pressure regulating cavity, described screw rod shaft rear end inserts in this pressure regulating cavity, the gap location of pressure regulating cavity and screw shaft is embedded with sealing and fills out Material, the top of described screw rod cavity opens up cannelure along perisporium, and described cannelure and pressure regulating cavity pass through pipeline connection between leading to.
Screw immersible pump of the present invention, is further improved by：
1st, the inwall of described inlet channel has helical structure.
The 2nd, buffer chamber is provided with described pipeline, the volume of described buffer chamber is not less than 10 times of pressure regulating cavity cumulative volume.
3rd, described buffer chamber is arranged near cannelure one end.
The hydraulic pressure of screw pump front end is introduced to the rear end of screw shaft by the present invention, and screw shaft is pushed up, and to resist screw rod Suffered powerful recoil, makes the stress of screw shaft more balance, thus reducing the load of bearing, reduces the mill of bearing Damage, extend the service life of immersible pump, and provide guarantee for improving screw rod revolution speed further.
Buffer chamber is set near cannelure one end can reduce cannelure and export the high speed shake of current it is ensured that pressure regulating cavity Inside possess more stable pressure, prevent the generation of bearing shake.
Brief description
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is screw submersible pump structure schematic diagram of the present invention.
In figure label is schematically as follows：
1- screw rod cavity, 2- housing, 3- screw rod, 4- inlet channel, 5- water outlet, 6- screw shaft, 7- bearing, 8- transmission mechanism, 9- First motor, 15- pressure regulating cavity, 16- pipeline, 17- buffer chamber, 18- cannelure.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, being screw immersible pump of the present invention, including the housing 2 with screw rod cavity 1, it is arranged at screw rod chamber Internal 1 one group of screw rod 3, screw rod 3 lower end is connected with inlet channel 4, and upper end is connected with water outlet 5, and the inwall of inlet channel 4 has spiral shell Rotation shape structure, screw shaft 6 rear and front end is supported by bearing 7, and screw shaft 6 couples the first motor 9, screw shaft 6 by transmission mechanism 8 Pressure regulating cavity 15 is provided with the housing of rear end, screw shaft 6 rear end is inserted 15 in this pressure regulating cavity, between pressure regulating cavity 15 and screw shaft 6 It is embedded with airtight and watertight padding, the top of screw rod cavity 1 opens up cannelure 18 along perisporium, between cannelure 18 and pressure regulating cavity 15 lead at gap Connected by pipeline 16, pipeline 16 is provided with buffer chamber 17 near cannelure 18 one end, the volume of buffer chamber 17 is not 10 times of pressure regulating cavity 15 cumulative volume.
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape The technical scheme becoming, all falls within the protection domain of application claims.

Claims (1)

1. a kind of screw immersible pump, including the housing with screw rod cavity, is arranged at one group of screw rod in screw rod cavity, described Screw rod lower end is connected with inlet channel, and upper end is connected with water outlet, and transmission is passed through by bearings, screw shaft in screw shaft rear and front end Mechanism couple the first motor it is characterised in that：It is provided with pressure regulating cavity, described screw rod shaft rear end on the housing of described screw rod shaft rear end Insert in this pressure regulating cavity, pressure regulating cavity is embedded with airtight and watertight padding with the gap location of screw shaft, and the top of described screw rod cavity is along perisporium Open up cannelure, described cannelure and pressure regulating cavity pass through pipeline connection between leading to；
The inwall of described inlet channel has helical structure；
Buffer chamber is provided with described pipeline, the volume of described buffer chamber is not less than 10 times of pressure regulating cavity cumulative volume；
Described buffer chamber is arranged near cannelure one end.
CN201610813669.1A 2014-07-29 2014-07-29 Screw type immersible pump with long service life Pending CN106401946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610813669.1A CN106401946A (en) 2014-07-29 2014-07-29 Screw type immersible pump with long service life

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410364326.2A CN104196718B (en) 2014-07-29 2014-07-29 Screw immersible pump
CN201610813669.1A CN106401946A (en) 2014-07-29 2014-07-29 Screw type immersible pump with long service life

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410364326.2A Division CN104196718B (en) 2014-07-29 2014-07-29 Screw immersible pump

Publications (1)

Publication Number Publication Date
CN106401946A true CN106401946A (en) 2017-02-15

Family

ID=52082062

Family Applications (5)

Application Number Title Priority Date Filing Date
CN201610814860.8A Active CN106286281B (en) 2014-07-29 2014-07-29 A kind of screw immersible pump
CN201610813669.1A Pending CN106401946A (en) 2014-07-29 2014-07-29 Screw type immersible pump with long service life
CN201410364326.2A Expired - Fee Related CN104196718B (en) 2014-07-29 2014-07-29 Screw immersible pump
CN201610813945.4A Active CN106286280B (en) 2014-07-29 2014-07-29 Screw immersible pump
CN201610816373.5A Pending CN106246535A (en) 2014-07-29 2014-07-29 The screw immersible pump that a kind of service life is longer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610814860.8A Active CN106286281B (en) 2014-07-29 2014-07-29 A kind of screw immersible pump

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN201410364326.2A Expired - Fee Related CN104196718B (en) 2014-07-29 2014-07-29 Screw immersible pump
CN201610813945.4A Active CN106286280B (en) 2014-07-29 2014-07-29 Screw immersible pump
CN201610816373.5A Pending CN106246535A (en) 2014-07-29 2014-07-29 The screw immersible pump that a kind of service life is longer

Country Status (1)

Country Link
CN (5) CN106286281B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104107B (en) * 2015-08-17 2017-08-08 宁波江东晟利工业产品设计有限公司 A kind of mechanical automatic drip irrigation system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391643A (en) * 1966-02-07 1968-07-09 Warren Pumps Inc Sub-surface pump
US4439121A (en) * 1982-03-02 1984-03-27 Dunham-Bush, Inc. Self-cleaning single loop mist type lubrication system for screw compressors
CN2161754Y (en) * 1993-04-03 1994-04-13 廖增雪 Water pump
CN1236064A (en) * 1998-05-18 1999-11-24 运载器有限公司 Screw compressor with balanced thrust
CN1330021A (en) * 2000-06-15 2002-01-09 雷恩自动机株式会社 Device for packaging feeded material
US7419354B2 (en) * 2004-04-05 2008-09-02 Konstandinos Zamfes Centrifugal pump with screw pump accelerator
CN201401302Y (en) * 2009-05-07 2010-02-10 窦敏洁 Wind-driving submersible pump

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388854A (en) * 1966-06-23 1968-06-18 Atlas Copco Ab Thrust balancing in rotary machines
DE3920901C2 (en) * 1989-06-26 1995-02-16 Allweiler Ag Screw pump
SE465527B (en) * 1990-02-09 1991-09-23 Svenska Rotor Maskiner Ab SCREW ROUTE MACHINE WITH ORGAN FOR AXIAL BALANCE
SE501893C2 (en) * 1993-10-14 1995-06-12 Svenska Rotor Maskiner Ab Screw compressor with variable axial balancing means
DE19820622A1 (en) * 1998-05-09 1999-11-11 Peter Frieden Demountable pump or compressor for chemical or food processing industry
US6520758B1 (en) * 2001-10-24 2003-02-18 Ingersoll-Rand Company Screw compressor assembly and method including a rotor having a thrust piston
BE1016581A3 (en) * 2005-02-22 2007-02-06 Atlas Copco Airpower Nv IMPROVED WATER INJECTED SCREW COMPRESSOR ELEMENT.
CN201148970Y (en) * 2008-01-18 2008-11-12 大港油田集团有限责任公司 Double-screw rod delivery pump bearing support
KR20090112884A (en) * 2008-04-25 2009-10-29 주식회사 브이피에스 The screw type vacuum pump
CN202023736U (en) * 2011-04-23 2011-11-02 江西新龙泵业科技制造有限公司 Splitting type double-screw pump
CN202280615U (en) * 2011-09-15 2012-06-20 天津泵业机械集团有限公司 Immersion type double-screw cargo oil pump
CN202326258U (en) * 2011-11-18 2012-07-11 烟台哈特福德压缩机有限公司 Motor exhaust and cooling device for vertical screw compressor
BE1020311A3 (en) * 2012-02-28 2013-07-02 Atlas Copco Airpower Nv SCREW COMPRESSOR.
CN202937447U (en) * 2012-12-13 2013-05-15 黄山工业泵制造有限公司 Compact drowned three-screw pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391643A (en) * 1966-02-07 1968-07-09 Warren Pumps Inc Sub-surface pump
US4439121A (en) * 1982-03-02 1984-03-27 Dunham-Bush, Inc. Self-cleaning single loop mist type lubrication system for screw compressors
CN2161754Y (en) * 1993-04-03 1994-04-13 廖增雪 Water pump
CN1236064A (en) * 1998-05-18 1999-11-24 运载器有限公司 Screw compressor with balanced thrust
CN1330021A (en) * 2000-06-15 2002-01-09 雷恩自动机株式会社 Device for packaging feeded material
US7419354B2 (en) * 2004-04-05 2008-09-02 Konstandinos Zamfes Centrifugal pump with screw pump accelerator
CN201401302Y (en) * 2009-05-07 2010-02-10 窦敏洁 Wind-driving submersible pump

Also Published As

Publication number Publication date
CN106286281B (en) 2018-05-18
CN106286280A (en) 2017-01-04
CN106286280B (en) 2018-06-29
CN104196718B (en) 2016-10-12
CN106246535A (en) 2016-12-21
CN104196718A (en) 2014-12-10
CN106286281A (en) 2017-01-04

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170215

RJ01 Rejection of invention patent application after publication