CN106286281B - A kind of screw immersible pump - Google Patents

A kind of screw immersible pump Download PDF

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Publication number
CN106286281B
CN106286281B CN201610814860.8A CN201610814860A CN106286281B CN 106286281 B CN106286281 B CN 106286281B CN 201610814860 A CN201610814860 A CN 201610814860A CN 106286281 B CN106286281 B CN 106286281B
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CN
China
Prior art keywords
screw rod
screw
pressure regulating
shaft
cavity
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.)
Active
Application number
CN201610814860.8A
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Chinese (zh)
Other versions
CN106286281A (en
Inventor
游玉前
薛礼波
马传远
王润雨
邢攸甲
王莉
于杰
丘义
高勇
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.)
Shandong Dahuang Machinery Co ltd
Original Assignee
Shandong Dahuang Machinery Co Ltd
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Priority to CN201610814860.8A priority Critical patent/CN106286281B/en
Publication of CN106286281A publication Critical patent/CN106286281A/en
Application granted granted Critical
Publication of CN106286281B publication Critical patent/CN106286281B/en
Active 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

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

Abstract

The present invention relates to a kind of screw immersible pumps, including the housing with screw rod cavity, it is arranged at the in vivo one group of screw rod of screw rod chamber, screw rod lower end is connected with inlet channel, upper end is connected with water outlet, screw shaft rear and front end is by bearings, screw shaft couples the first motor by transmission mechanism, pressure regulating cavity is provided on the housing of screw rod shaft rear end, screw rod shaft rear end is inserted into the pressure regulating cavity, the gap location of pressure regulating cavity and screw shaft is embedded with airtight and watertight padding, and the top of screw rod cavity opens up annular groove along peripheral wall, and annular groove and pressure regulating cavity pass through pipeline connection between leading to.The hydraulic pressure of screw pump front end is introduced to the rear end of screw shaft by the present invention, screw shaft is pushed up, to resist the powerful recoil suffered by screw rod, the stress of screw shaft is made more to balance, so as to reduce the load of bearing, the abrasion of bearing is reduced, extends the service life of immersible pump and provides guarantee to further improve screw rod revolution speed.

Description

A kind of screw immersible pump
Technical field
The present invention relates to a kind of immersible pumps, particularly a kind of screw immersible pump.
Background technology
Immersible pump is the important equipment 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, positive displacement pump, such as：Plunger pump, gear pump, screw pump, vane pump etc.；3rd, other types, such as：Jet pump, water Hammer pump etc..
Screw pump belongs to positive displacement pump, and the high single current amount of lift is few, is particularly suitable for and loose thick liquid.When screw rod rotates at a high speed When, rear end bearing is subject to larger pressure, accelerated wear test, while also limits the rotating speed of screw pump.Bearing pressure mainly comes From in the reaction force of screw rod, and for a screw submersible pump, the reaction force is mainly by rotating speed and outlet pressures It determines.When needing high rotating speed, preferable solution is to reduce the pressure of the port of export to realize.However, in face of big lift Demand, reducing outlet pressures becomes problem.
The content of the invention
It is an object of the invention to：The defects of overcoming the above-mentioned prior art proposes a kind of work side of screw immersible pump Method.
In order to achieve the above object, screw immersible pump proposed by the present invention including the housing with screw rod cavity, is set In the in vivo one group of screw rod of screw rod chamber, the screw rod lower end is connected with inlet channel, and upper end is connected with water outlet, two before and after screw shaft End couples the first motor by bearings, screw shaft by transmission mechanism, it is characterised in that：On the housing of the screw rod shaft rear end Pressure regulating cavity is provided with, the screw rod shaft rear end is inserted into the pressure regulating cavity, and the gap location of pressure regulating cavity and screw shaft is embedded with sealing and fills out Material, the top of the screw rod cavity opens up annular groove along peripheral wall, passes through pipeline connection between the annular groove and pressure regulating cavity.It is described Method of work include：The hydraulic pressure of screw pump front end is introduced to the rear end of screw shaft, screw shaft is pushed up, to resist screw rod Suffered powerful recoil makes the stress balance of screw shaft.
Screw immersible pump of the present invention, further improve are：
1st, the inner wall of the inlet channel has helical structure.
2nd, buffer chamber is provided on the pipeline, the volume of the buffer chamber is not less than the 10 of pressure regulating cavity total volume Times.
3rd, the buffer chamber is set close to annular groove 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, to resist screw rod Suffered powerful recoil, makes the stress of screw shaft more balance, and so as to reduce the load of bearing, reduces the mill of bearing Damage, extends the service life of immersible pump and provides guarantee to further improve screw rod revolution speed.
The high speed that annular groove output current can be reduced by setting buffer chamber close to annular groove one end is shaken, it is ensured that pressure regulating cavity Inside possess relatively stable pressure, prevent the generation of bearing shake.
Description of the drawings
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.
Figure label is schematically as follows：
1- screw rod cavitys, 2- housings, 3- screw rods, 4- inlet channels, 5- water outlets, 6- screw shafts, 7- bearings, 8- drivers Structure, the first motors of 9-, 15- pressure regulating cavities, 16- pipelines, 17- buffer chambers, 18- annular grooves.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, for screw immersible pump of the present invention, including the housing 2 with screw rod cavity 1, screw rod chamber is arranged at Internal 1 one group of screw rod 3,3 lower end of screw rod are connected with inlet channel 4, and upper end is connected with water outlet 5, and the inner wall of inlet channel 4 has spiral shell Shape structure is revolved, 6 rear and front end of screw shaft 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 on the housing of rear end, 6 rear end of screw shaft is inserted into 15 in the pressure regulating cavity, between pressure regulating cavity 15 and screw shaft 6 Airtight and watertight padding is embedded at gap, the top of screw rod cavity 1 opens up annular groove 18 along peripheral wall, leads between annular groove 18 and pressure regulating cavity 15 It crosses pipeline 16 to connect, 18 one end of annular groove is provided with buffer chamber 17 on pipeline 16, the volume of buffer chamber 17 is not tune Press 15 total volume of chamber 10 times.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape Into technical solution, all fall within the present invention claims protection domain.

Claims (1)

1. a kind of method of work of screw immersible pump including the housing with screw rod cavity, is arranged at screw rod chamber in vivo one Group screw rod, the screw rod lower end are connected with inlet channel, and upper end is connected with water outlet, and screw shaft rear and front end is by bearings, spiral shell Bar axis couples the first motor by transmission mechanism, it is characterised in that：Pressure regulating cavity is provided on the housing of the screw rod shaft rear end, institute It states screw rod shaft rear end to be inserted into the pressure regulating cavity, the gap location of pressure regulating cavity and screw shaft is embedded with airtight and watertight padding, the screw rod cavity Top open up annular groove along peripheral wall, pass through pipeline connection between the annular groove and pressure regulating cavity；
The method of work includes：The hydraulic pressure of screw immersible pump front end is introduced to the rear end of screw shaft, screw rod is axial It above pushes away, to resist the powerful recoil suffered by screw rod, makes the stress balance of screw shaft；
The inner wall of the inlet channel has helical structure.
CN201610814860.8A 2014-07-29 2014-07-29 A kind of screw immersible pump Active CN106286281B (en)

Priority Applications (1)

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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610814860.8A CN106286281B (en) 2014-07-29 2014-07-29 A kind of screw immersible pump
CN201410364326.2A CN104196718B (en) 2014-07-29 2014-07-29 Screw immersible pump

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 (2)

Publication Number Publication Date
CN106286281A CN106286281A (en) 2017-01-04
CN106286281B true CN106286281B (en) 2018-05-18

Family

ID=52082062

Family Applications (5)

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
CN201610816373.5A Pending CN106246535A (en) 2014-07-29 2014-07-29 The screw immersible pump that a kind of service life is longer
CN201610814860.8A Active CN106286281B (en) 2014-07-29 2014-07-29 A kind of screw immersible pump
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

Family Applications Before (2)

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
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 After (2)

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

Country Status (1)

Country Link
CN (5) CN106401946A (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

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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
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
CN202937447U (en) * 2012-12-13 2013-05-15 黄山工业泵制造有限公司 Compact drowned three-screw pump

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SE465527B (en) * 1990-02-09 1991-09-23 Svenska Rotor Maskiner Ab SCREW ROUTE MACHINE WITH ORGAN FOR AXIAL BALANCE
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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
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.
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
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Patent Citations (5)

* 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
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
CN202937447U (en) * 2012-12-13 2013-05-15 黄山工业泵制造有限公司 Compact drowned three-screw pump

Also Published As

Publication number Publication date
CN106401946A (en) 2017-02-15
CN106286280A (en) 2017-01-04
CN106286280B (en) 2018-06-29
CN106246535A (en) 2016-12-21
CN104196718B (en) 2016-10-12
CN106286281A (en) 2017-01-04
CN104196718A (en) 2014-12-10

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CB03 Change of inventor or designer information

Inventor after: You Yuqian

Inventor after: Xue Libo

Inventor after: Ma Chuanyuan

Inventor after: Wang Runyu

Inventor after: Xing Youjia

Inventor after: Wang Li

Inventor after: Yu Jie

Inventor after: Qiu Yi

Inventor after: Gao Yong

Inventor before: Request for anonymity

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TA01 Transfer of patent application right

Effective date of registration: 20180419

Address after: 250200 Shandong city of Ji'nan province Zhangqiu xianggongzhuang Village Phase

Applicant after: Shandong Dahuang Machinery Co.,Ltd.

Address before: 213000 North District, Jiangsu, Changzhou Jin Ling North Road, Hohai University

Applicant before: Wu Xiaozai

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