CN104196718A - Screw-type submerged pump - Google Patents

Screw-type submerged pump Download PDF

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Publication number
CN104196718A
CN104196718A CN201410364326.2A CN201410364326A CN104196718A CN 104196718 A CN104196718 A CN 104196718A CN 201410364326 A CN201410364326 A CN 201410364326A CN 104196718 A CN104196718 A CN 104196718A
Authority
CN
China
Prior art keywords
screw
cavity
pump
pressure regulating
circular groove
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.)
Granted
Application number
CN201410364326.2A
Other languages
Chinese (zh)
Other versions
CN104196718B (en
Inventor
马巧根
周长根
候潇寒
张薇华
陆俊芳
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.)
Suzhou Haiershi Information Technology Co ltd
Original Assignee
SUZHOU TONGLI ELECTRIC 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 SUZHOU TONGLI ELECTRIC Co Ltd filed Critical SUZHOU TONGLI ELECTRIC Co Ltd
Priority to CN201610814860.8A priority Critical patent/CN106286281B/en
Priority to CN201610813945.4A priority patent/CN106286280B/en
Priority to CN201610816373.5A priority patent/CN106246535A/en
Priority to CN201610813669.1A priority patent/CN106401946A/en
Priority to CN201410364326.2A priority patent/CN104196718B/en
Publication of CN104196718A publication Critical patent/CN104196718A/en
Application granted granted Critical
Publication of CN104196718B publication Critical patent/CN104196718B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 submerged pump comprising a shell with a screw cavity and a group of screws arranged in the screw cavity, wherein the lower ends of the screws are connected with a water inlet channel and the upper ends are connected with a water outlet channel; the front ends and the rear ends of screw shafts are supported by bearings; the screw shafts are connected with a first motor by a transmission mechanism; pressure adjusting cavities are arranged on the shell at the rear ends of the screw shafts; the rear ends of the screw shafts are inserted into the pressure adjusting cavities; sealing fillers are embedded in gaps between the pressure adjusting cavities and the screw shafts; a circular groove is formed on the upper part of the screw cavity along the peripheral wall; and the circular groove is connected with the pressure adjusting cavities by a pipeline. According to the screw-type submerged pump, water pressure at the front end of the screw pump is introduced to the rear ends of the screw shafts to upwards push the screw shafts so as to resist strong recoil suffered by the screws, and therefore, stress of the screw shafts is balanced, load of the bearing is reduced, abrasion of the bearings is reduced, the service life of the submerged pump is prolonged, and guarantee is provided for further improving the revolving speed of the screw pump.

Description

Screw type submersible pump
Technical field
The present invention relates to a kind of submersible pump, particularly a kind of screw type submersible pump.
Background technique
Submersible pump is the visual plant of deep-well water lift, is widely used in industrial or agricultural.
In general, according to drainage principle, water pump can be divided into: one, impeller pump, as: centrifugal pump, mixed flow pump, axial-flow pump etc., torque flow pump; Two, displacement pump, as: plunger pump, gear pump, screw pump, vane pump etc.; Three, other types, as: Jet injector, hydraulic ram etc.
Screw pump belongs to displacement pump, and the high single current amount of lift is few, is particularly suitable for and loose thick liquid.When screw rod High Rotation Speed, rear end bearing is subject to larger pressure, accelerated wear test, and the while has also been limited the rotating speed of screw pump.Bearing pressure mainly comes from the reaction force of screw rod, and for a screw submersible pump, this reaction force is mainly determined by rotating speed and outlet end pressure.When the high rotating speed of needs, desirable solution is that the pressure that reduces outlet end is realized.Yet, in the face of the demand of large lift, reduce outlet end pressure and become a difficult problem.
Summary of the invention
The object of the invention is to: overcome the defect of above-mentioned prior art, propose a kind of screw type submersible pump.
In order to achieve the above object, the screw type submersible pump that the present invention proposes, comprise the housing with screw rod cavity, be arranged at one group of screw rod in screw rod cavity, described screw rod lower end is connected with inlet channel, upper end is connected with water outlet, screw axis rear and front end is by bearings, screw axis connects the first motor by driving mechanism, it is characterized in that: on the housing of described screw axis rear end, be provided with pressure regulating cavity, insert in this pressure regulating cavity described screw axis rear end, the gap location of pressure regulating cavity and screw axis embeds stuffing box packing, circular groove is offered along perisporium in the top of described screw rod cavity, between described circular groove and pressure regulating cavity are logical, pass through pipeline connection.
Screw type submersible pump of the present invention, further improves and is:
1, the inwall of described inlet channel has helical structure.
2, on described pipeline, be provided with buffer chamber, the volume of described buffer chamber is not less than 10 times of pressure regulating cavity total volume.
3, described buffer chamber arranges near circular groove one end.
The present invention is introduced into the hydraulic pressure of screw pump front end the rear end of screw axis, to on screw axial, push away, resist the suffered powerful recoil of screw rod, make the comparatively balance of accepting of screw axis, thereby reduce the load of bearing, reduce the wearing and tearing of bearing, extend the working life of submersible pump, and provide guarantee for further improving screw pump rotating speed.
Near circular groove one end, the high speed shake that buffer chamber can reduce circular groove output current is set, guarantees to possess more stable pressure in pressure regulating cavity, stop the generation of bearing shake.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is screw type submersible pump structural representation of the present invention.
Number in the figure is schematically as follows:
1-screw rod cavity, 2-housing, 3-screw rod, 4-inlet channel, 5-water outlet, 6-screw axis, 7-bearing, 8-driving mechanism, 9-the first motor, 15-pressure regulating cavity, 16-pipeline, 17-buffer chamber, 18-circular groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, for screw type submersible pump of the present invention, comprise the housing 2 with screw rod cavity 1, be arranged at one group of screw rod 3 of screw rod cavity interior 1, screw rod 3 lower ends are connected with inlet channel 4, upper end is connected with water outlet 5, the inwall of inlet channel 4 has helical structure, screw axis 6 rear and front ends are supported by bearing 7, screw axis 6 connects the first motor 9 by driving mechanism 8, on the housing of screw axis 6 rear ends, be provided with pressure regulating cavity 15, this pressure regulating cavity interior 15 is inserted in screw axis 6 rear ends, pressure regulating cavity 15 has stuffing box packing with the gap location embedding of screw axis 6, circular groove 18 is offered along perisporium in the top of screw rod cavity 1, between circular groove 18 is logical with pressure regulating cavity 15, by pipeline 16, be communicated with, on pipeline 16, near circular groove 18 one end, be provided with buffer chamber 17, the volume of buffer chamber 17 is not 10 times of pressure regulating cavity 15 total volumes.
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims (4)

1. a screw type submersible pump, comprise the housing with screw rod cavity, be arranged at one group of screw rod in screw rod cavity, described screw rod lower end is connected with inlet channel, upper end is connected with water outlet, screw axis rear and front end is by bearings, screw axis connects the first motor by driving mechanism, it is characterized in that: on the housing of described screw axis rear end, be provided with pressure regulating cavity, insert in this pressure regulating cavity described screw axis rear end, the gap location of pressure regulating cavity and screw axis embeds stuffing box packing, circular groove is offered along perisporium in the top of described screw rod cavity, between described circular groove and pressure regulating cavity are logical, pass through pipeline connection.
2. screw type submersible pump according to claim 1, is characterized in that: the inwall of described inlet channel has helical structure.
3. screw type submersible pump according to claim 1, is characterized in that: on described pipeline, be provided with buffer chamber, the volume of described buffer chamber is not less than 10 times of pressure regulating cavity total volume.
4. screw type submersible pump according to claim 1, is characterized in that: described buffer chamber arranges near circular groove one end.
CN201410364326.2A 2014-07-29 2014-07-29 Screw immersible pump Expired - Fee Related CN104196718B (en)

Priority Applications (5)

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

Applications Claiming Priority (1)

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

Related Child Applications (4)

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

Publications (2)

Publication Number Publication Date
CN104196718A true CN104196718A (en) 2014-12-10
CN104196718B CN104196718B (en) 2016-10-12

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

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN201610814860.8A Active CN106286281B (en) 2014-07-29 2014-07-29 A kind of 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
CN201610813945.4A Active CN106286280B (en) 2014-07-29 2014-07-29 Screw immersible pump

Family Applications After (1)

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

Country Status (1)

Country Link
CN (5) CN106286281B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104107A (en) * 2015-08-17 2015-12-02 宁波江东晟利工业产品设计有限公司 Mechanical automatic drip irrigation system

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US3388854A (en) * 1966-06-23 1968-06-18 Atlas Copco Ab Thrust balancing in rotary machines
US4439121A (en) * 1982-03-02 1984-03-27 Dunham-Bush, Inc. Self-cleaning single loop mist type lubrication system for screw compressors
EP0405161A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
DE19820622A1 (en) * 1998-05-09 1999-11-11 Peter Frieden Demountable pump or compressor for chemical or food processing industry
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

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US3391643A (en) * 1966-02-07 1968-07-09 Warren Pumps Inc Sub-surface pump
SE465527B (en) * 1990-02-09 1991-09-23 Svenska Rotor Maskiner Ab SCREW ROUTE MACHINE WITH ORGAN FOR AXIAL BALANCE
CN2161754Y (en) * 1993-04-03 1994-04-13 廖增雪 Water pump
SE501893C2 (en) * 1993-10-14 1995-06-12 Svenska Rotor Maskiner Ab Screw compressor with variable axial balancing means
US6050797A (en) * 1998-05-18 2000-04-18 Carrier Corporation Screw compressor with balanced thrust
JP3559222B2 (en) * 2000-06-15 2004-08-25 レオン自動機株式会社 Wrapping machine
US6520758B1 (en) * 2001-10-24 2003-02-18 Ingersoll-Rand Company Screw compressor assembly and method including a rotor having a thrust piston
US7419354B2 (en) * 2004-04-05 2008-09-02 Konstandinos Zamfes Centrifugal pump with screw pump accelerator
BE1016581A3 (en) * 2005-02-22 2007-02-06 Atlas Copco Airpower Nv IMPROVED WATER INJECTED SCREW COMPRESSOR ELEMENT.
CN201401302Y (en) * 2009-05-07 2010-02-10 窦敏洁 Wind-driving submersible 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
US3388854A (en) * 1966-06-23 1968-06-18 Atlas Copco Ab Thrust balancing in rotary machines
US4439121A (en) * 1982-03-02 1984-03-27 Dunham-Bush, Inc. Self-cleaning single loop mist type lubrication system for screw compressors
EP0405161A1 (en) * 1989-06-26 1991-01-02 Allweiler AG Screw rotor pump
DE19820622A1 (en) * 1998-05-09 1999-11-11 Peter Frieden Demountable pump or compressor for chemical or food processing industry
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104107A (en) * 2015-08-17 2015-12-02 宁波江东晟利工业产品设计有限公司 Mechanical automatic drip irrigation system
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

Also Published As

Publication number Publication date
CN106401946A (en) 2017-02-15
CN106286280A (en) 2017-01-04
CN106246535A (en) 2016-12-21
CN104196718B (en) 2016-10-12
CN106286281B (en) 2018-05-18
CN106286280B (en) 2018-06-29
CN106286281A (en) 2017-01-04

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Chen Jiandan

Inventor before: Ma Qiaogen

Inventor before: Zhou Changgen

Inventor before: Hou Xiaohan

Inventor before: Zhang Weihua

Inventor before: Lu Junfang

COR Change of bibliographic data
TA01 Transfer of patent application right

Effective date of registration: 20160822

Address after: Cheng lake road Wuzhong Economic Development Zone of Suzhou City, Jiangsu Province, No. 7, building 4, 215128

Applicant after: SUZHOU HAIERSHI INFORMATION TECHNOLOGY Co.,Ltd.

Address before: Cheng lake road, Wuzhong District Wuzhong Economic Development Zone of Suzhou City, Jiangsu Province, No. 7 215128

Applicant before: SUZHOU TONGLI ELECTRIC Co.,Ltd.

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161012

Termination date: 20210729