WO2007041935A1 - Pompe alternative hydraulique - Google Patents

Pompe alternative hydraulique Download PDF

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Publication number
WO2007041935A1
WO2007041935A1 PCT/CN2006/002502 CN2006002502W WO2007041935A1 WO 2007041935 A1 WO2007041935 A1 WO 2007041935A1 CN 2006002502 W CN2006002502 W CN 2006002502W WO 2007041935 A1 WO2007041935 A1 WO 2007041935A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
hydraulic
reversing valve
pump
piston
Prior art date
Application number
PCT/CN2006/002502
Other languages
English (en)
Chinese (zh)
Inventor
Quan Lv
Quanzhang Wang
Jing Shi
Original Assignee
Nanjing Quanzhang Hydraulic Power Science And Technology 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 Nanjing Quanzhang Hydraulic Power Science And Technology Co., Ltd filed Critical Nanjing Quanzhang Hydraulic Power Science And Technology Co., Ltd
Publication of WO2007041935A1 publication Critical patent/WO2007041935A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor

Definitions

  • the present invention relates to a pump, and more particularly to a hydraulic reciprocating pump that utilizes liquid to transfer power. Background technique
  • a pump is a mechanical device that transports or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the kinetic energy of the liquid and transporting it along the pipeline.
  • the pumps are mainly used to transport liquids including water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals. They can also transport liquids, gas mixtures and liquids containing suspended solids. According to the working principle, the pump can be divided into positive displacement pump, power pump and other types of pumps, such as jet pump, water hammer pump, electromagnetic pump and gas lift pump.
  • the positive displacement pump relies on the working element to make a reciprocating or rotating motion in the pump cylinder, so that the working volume is alternately increased and decreased to achieve the suction and discharge of the liquid.
  • a positive displacement pump in which a working element reciprocates is called a reciprocating pump, and a rotary motion is called a rotary pump.
  • the former suction and discharge processes alternate in the same pump cylinder and are controlled by suction and discharge valves; the latter is rotated by working elements such as gears, screws, blade rotors or vanes, forcing liquid from inhalation. The side is transferred to the discharge side.
  • the reciprocating pump is suitable for high pressure and low flow working environments and is widely used in industry and agriculture.
  • the main components of the existing reciprocating pump include: pump cylinder, piston, piston rod, one-way suction valve, one-way discharge valve, generally using electric motor as its motive force, driven by a set of crank linkage mechanism, changing the rotary motion of the motor into a piston Reciprocating motion; or directly driven by a steam engine to reciprocate the piston.
  • pump cylinder piston
  • piston rod piston rod
  • one-way suction valve one-way discharge valve
  • generally using electric motor as its motive force
  • driven by a set of crank linkage mechanism changing the rotary motion of the motor into a piston Reciprocating motion
  • directly driven by a steam engine to reciprocate the piston or directly driven by a steam engine to reciprocate the piston.
  • the reciprocating pump with motor or steam engine as the motive force has a complicated structure and high cost, which limits its further promotion and application. Summary of the invention
  • An object of the present invention is to provide a hydraulic reciprocating pump that transfers energy using a liquid to operate a reciprocating pump, which can transmit power over a long distance.
  • the hydraulic reciprocating pump according to the present invention is characterized in that: it comprises a reciprocating pump, two power cylinders, a reversing valve, a pump motor unit and a fuel tank equipped with hydraulic oil;
  • the reciprocating pump comprises a pump body having two connected chambers and a piston assembly, the piston assembly being composed of a piston rod and two pistons mounted at two ends of the piston rod, the two pistons being respectively disposed in the two chambers of the pump body
  • the chamber is divided into a hydraulic chamber and a working chamber, and the working chamber is respectively connected with an inlet check valve and an outlet check valve, wherein the inlet check valve is connected with the inlet pipe, and the outlet check valve is connected Connected to the outlet pipe;
  • power cylinder The utility model comprises a cylinder body, a piston and a piston rod, wherein the piston is installed in the cylinder body and divides the cylinder body into a piston rod cavity and a pistonless rod cavity, wherein no piston cavity is filled with liquid and the liquid is respectively connected to the pump body through the pipeline
  • the force chamber is connected, and a control mechanism of the reversing valve is arranged on the power cylinder;
  • the reversing valve comprises an oil inlet port, two oil outlet ports and a return port, wherein the oil inlet port is sequentially connected with a pump motor unit and a fuel tank for conveying hydraulic oil through a pipeline, and the two oil outlet ports are respectively connected to the power through the pipeline.
  • the cylinder has a piston rod cavity, and the return port is connected to the fuel tank through a pipe.
  • the control mechanism of the reversing valve is provided with a contact on a piston rod of the power cylinder, and a reversing valve travel switch corresponding to the contact is arranged on the cylinder. If conditions permit, the control mechanism can also be controlled by a computer, integrated circuit or template.
  • the control signals are provided by sensors provided on the power cylinder or the reciprocating pump. These techniques are common technologies and will not be described here.
  • the reversing valve can be Electromagnetic two-position four-way reversing valve, of course, other types of reversing valves can also be used.
  • a pilot-type liquid flow valve is connected in parallel between the oil inlet of the reversing valve and the pump motor unit, and the outlet of the pilot-type flow valve is connected to the fuel tank through the pipeline.
  • An oil filter is connected between the fuel tank and the pump motor unit, the reversing valve, and the pilot-operated flow valve through a pipe to filter out impurities in the hydraulic oil.
  • the piston 22 of the power cylinder 3 descends, and the liquid in the piston-free chamber 26 enters the hydraulic chamber 11 of the reciprocating pump 1 through the pipeline, pushes the piston 9 upward, and simultaneously drives the piston 10 upward, and the volume of the hydraulic chamber 12 of the reciprocating pump 1
  • the liquid in the hydraulic chamber 12 enters the piston-free cavity 25 of the power cylinder 2 through the pipeline, pushes the piston 21 upward, and the volume of the piston rod chamber 23 of the power cylinder 2 becomes smaller, and the hydraulic oil flows back into the electromagnetic position.
  • the reversing valve 4 flows out of the return port 30 and flows back to the oil tank 6 via the oil filter 33.
  • the inlet unidirectional width 15 is closed, the outlet check valve 17 is opened, and the water is pumped into the outlet pipe 20, and the volume of the working chamber 14 is made while the volume of the working chamber 13 is reduced.
  • the liquid discharge check valve 18 is closed, the liquid inlet check valve 16 is opened, and the water enters the work chamber 14 through the liquid inlet pipe 19.
  • the contact 31 touches the travel switch 32, and the electromagnetic two-position four-way switching valve 4 is energized and operated, and the spool moves to the right to change the direction of the oil flow.
  • the oil outlet 29 enters the piston cylinder chamber 23 of the power cylinder 2 to push the piston 21 down, and the volume of the pistonless chamber 25 of the power cylinder 2 becomes smaller, the liquid
  • the hydraulic chamber 12 of the reciprocating pump 1 is introduced through the pipeline to push the piston 10 and drive the piston 9 down.
  • the piston 9 descends, the volume of the hydraulic chamber 11 becomes smaller, and the liquid enters the piston-free chamber 26 of the power cylinder 3 through the pipeline, and pushes
  • the piston 22 starts to ascend, and the hydraulic oil in the piston rod chamber 24 enters the electromagnetic two-position four-way switching valve 4 through the oil pipe, and flows back to the oil tank 6 by the return port 30 and the oil filter 33.
  • the volume of the working chamber 13 becomes large, the liquid discharge check valve 17 is closed, the liquid inlet check valve 15 is opened, and the water enters the working chamber 13 through the liquid inlet tube 19; and when the piston 10 descends, the volume of the working chamber 14 is made.
  • the liquid discharge check valve 18 is opened, the liquid inlet check valve 16 is closed, and the water in the work chamber 14 is discharged from the liquid discharge pipe 20 through the liquid discharge check valve 18.
  • the contact 31 touches the travel switch 32, at which time the electromagnetic two-position four-way switching valve 4 is de-energized, the spool moves to the left to change the oil flow direction, and the oil outlet 29 is out.
  • the oil, the oil outlet 28 is closed, and the electromagnetic 4/2-way switching valve 4 is returned to the initial position. In this way, the cycle is repeated and the process is continuously pumped out.
  • the present invention has the following characteristics: (1) By using a power cylinder, a reversing valve and a pump motor unit, the liquid is used to transfer energy to operate the reciprocating pump, thereby eliminating the need for an electric motor or
  • the steam engine is used as the complex structure of the prime mover; (2) its structure can be either integral or split, and the components can be reasonably set and piped as needed to meet the requirements of different use occasions; (3)
  • the hydraulic reciprocating pump has a variety of uses and can be used for pumping water, underground crude oil, alkali, acid, dirty cement slurry and as a metering pump.
  • the invention can be commercialized in the petroleum industry, and can completely replace the existing beam pumping unit and overcome many disadvantages of the existing pumping unit. (5) Improve efficiency and efficiency. It is applied to the oil pumping unit, which can double the efficiency of the commonly used beam pumping unit, which greatly saves energy. ' Description of the drawings
  • FIG. 1 is a schematic view of the structure of the present invention. detailed description
  • the hydraulic reciprocating pump of the present invention comprises a reciprocating pump 1, two power cylinders 2, 3, a reversing valve 4, a pump motor unit 5, and a fuel tank 6 filled with hydraulic oil;
  • the reciprocating pump 1 comprises a pump body 7 having two connected chambers and a piston assembly.
  • the piston assembly is composed of a piston rod 8 and two pistons 9, 10 mounted at the ends of the piston rod 8, the two pistons 9, 10 respectively It is disposed in two chambers of the pump body 7, and divides the chamber into the hydraulic chambers 11, 12 and the working chambers 13, 14.
  • the working chambers 13, 14 are respectively connected with the inlet check valves 15, 16 and the liquid outlet Check valve 17, 18, wherein the inlet check valve 15, 16 is connected to the inlet pipe 19, and the outlet check valves 17, 18 are connected to the outlet pipe 20, and the reciprocating pump 1 can be a vertical or horizontal structure;
  • the power cylinders 2, 3 include a cylinder, pistons 21, 22 and a piston rod, the pistons 21, 22 being mounted in the cylinder and dividing the cylinder into piston rod chambers 23, 24 and pistonless chambers 25, 26,
  • the piston chambers 25 and 26 are filled with liquid and are respectively connected to the hydraulic chambers 11 and 12 of the pump body 7 through pipes.
  • the piston rods of the power cylinders 2 and 3 are provided with contacts 31, which are provided on the cylinder block. a reversing valve stroke switch 32 corresponding to the contact 31;
  • the reversing valve 4 includes an oil inlet port 27, two oil outlet ports 28, 29 and a return port 30.
  • the oil inlet port 27 is sequentially connected by a pipe to a pump motor unit 5 for conveying hydraulic oil, and an oil filter 33.
  • the oil tank 6, the two oil outlets 28, 29 are respectively connected to the piston rod chambers 23, 24 of the power cylinders 2, 3 through a pipe, and the return port 30 is connected to the oil filter 33 and the oil tank 6 through pipes in turn.
  • a pilot-operated flow valve 34 for overpressure protection is connected in parallel between the oil inlet 27 of the reversing valve 4 and the pump motor unit 5, and the outlet of the pilot-type flow valve 34 is sequentially connected to the oil filter 33 and the oil tank 6 through a pipe. .

Abstract

La présente invention a trait à une pompe alternative hydraulique comportant une pompe alternative, deux vérins de commande, une soupape d'inversion, une unité de pompe électrique et un réservoir de carburant avec de l'huile hydraulique. La chambre est divisée en une chambre hydraulique et une chambre de travail par le piston dans la pompe alternative. La chambre de travail est reliée dans une soupape à action simple. Le liquide est entièrement versé dans la chambre sans piston du vérin de commande qui est reliée à la chambre hydraulique du corps de pompe par la conduite. Un mécanisme de commande de la soupape d'inversion est disposé sur le vérin de commande. L'orifice d'admission d'huile de la soupape d'inversion est relié à l'unité de pompe électrique et le réservoir de carburant successivement par la conduite. Deux orifices de sortie d'huile sont reliés à la chambre avec des pistons du vérin de commande séparément par la conduite. L'orifice de refoulement est relié au réservoir de carburant par la conduite. La pompe alternative hydraulique présente une structure simple, de fabrication facile et convient à plusieurs types d'applications.
PCT/CN2006/002502 2005-10-13 2006-09-25 Pompe alternative hydraulique WO2007041935A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB200510094777XA CN100337031C (zh) 2005-10-13 2005-10-13 液力往复泵
CN200510094777.X 2005-10-13

Publications (1)

Publication Number Publication Date
WO2007041935A1 true WO2007041935A1 (fr) 2007-04-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/002502 WO2007041935A1 (fr) 2005-10-13 2006-09-25 Pompe alternative hydraulique

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CN (1) CN100337031C (fr)
WO (1) WO2007041935A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107504017A (zh) * 2017-06-09 2017-12-22 上海航兴机电工程有限公司 一种水利闸门液压系统的液压油智能净化系统
CN107738698A (zh) * 2017-11-07 2018-02-27 中国重汽集团南充海乐机械有限公司 一种经久耐用、轻量化液压举升系统
CN108843473A (zh) * 2018-07-09 2018-11-20 郑州航空工业管理学院 多单向阀联用自适应提前互启节能往复供油装置
CN109854476A (zh) * 2019-03-28 2019-06-07 宁波合力机泵股份有限公司 一种动态进气液输送装置
CN115126673A (zh) * 2022-07-21 2022-09-30 镇江宝城注浆设备有限公司 一种具有防护功能的往复泵

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016295B (zh) * 2012-12-14 2015-06-10 涂晶 高压污油泵送装置
CN103225606A (zh) * 2013-03-21 2013-07-31 无锡市恒达矿山机械有限公司 一种双动式往复泵
CN104929894A (zh) * 2015-06-09 2015-09-23 安庆卡尔特压缩机有限公司 新型压缩机
CN106440301B (zh) * 2016-12-06 2022-04-15 叶能 一种智能液压房
CN106764444A (zh) * 2017-01-06 2017-05-31 汪梦林 砼泵输送管道润滑器
CN107842480A (zh) * 2017-12-12 2018-03-27 浙江通森环保设备科技有限公司 一种污水泵
CN112343785B (zh) * 2020-11-03 2023-02-21 上海齐耀动力技术有限公司 一种互为控制阀的双联液压驱动往复泵
CN113332592A (zh) * 2021-06-04 2021-09-03 丰凯医疗器械（上海）有限公司 一种导管泵组件
CN114801174B (zh) * 2022-03-26 2023-12-29 共享智能装备有限公司 加液装置及其运行过程

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CN1094564C (zh) * 1999-09-18 2002-11-20 彭利 流体传动式往复液压泵
US6609898B1 (en) * 2001-10-01 2003-08-26 Putzmeister Inc. Process and device for pumping compressible materials with reduced pressure pulsation
CN2570495Y (zh) * 2002-08-04 2003-09-03 房兆俊 一种柱塞式往复泵的驱动装置

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CN87101341A (zh) * 1987-05-21 1988-02-03 张庆玉 油压往复式真空泵与压缩机
ES2034550T3 (es) * 1988-10-18 1993-04-01 Friedrich Wilh. Schwing Gmbh Dispositivo para la distribucion neumatica de hormigon transportado por medios hidromecanicos en flujo denso.
GB9912233D0 (en) * 1998-12-04 1999-07-28 British Gas Plc Hydrualically driven compressor
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CN2641317Y (zh) * 2003-09-18 2004-09-15 李竞 往复式气体压缩装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913809A (en) * 1988-06-29 1990-04-03 Sasakura Engineering Co., Ltd. Concentrating apparatus with reverse osmosis membrane
CN1045836A (zh) * 1989-03-22 1990-10-03 王全章 全液压泵式抽油机
CN1094564C (zh) * 1999-09-18 2002-11-20 彭利 流体传动式往复液压泵
US6609898B1 (en) * 2001-10-01 2003-08-26 Putzmeister Inc. Process and device for pumping compressible materials with reduced pressure pulsation
CN2570495Y (zh) * 2002-08-04 2003-09-03 房兆俊 一种柱塞式往复泵的驱动装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107504017A (zh) * 2017-06-09 2017-12-22 上海航兴机电工程有限公司 一种水利闸门液压系统的液压油智能净化系统
CN107504017B (zh) * 2017-06-09 2023-10-27 上海航兴机电工程有限公司 一种水利闸门液压系统的液压油智能净化系统
CN107738698A (zh) * 2017-11-07 2018-02-27 中国重汽集团南充海乐机械有限公司 一种经久耐用、轻量化液压举升系统
CN108843473A (zh) * 2018-07-09 2018-11-20 郑州航空工业管理学院 多单向阀联用自适应提前互启节能往复供油装置
CN109854476A (zh) * 2019-03-28 2019-06-07 宁波合力机泵股份有限公司 一种动态进气液输送装置
CN109854476B (zh) * 2019-03-28 2023-09-19 宁波合力机泵股份有限公司 一种动态进气液输送装置
CN115126673A (zh) * 2022-07-21 2022-09-30 镇江宝城注浆设备有限公司 一种具有防护功能的往复泵

Also Published As

Publication number Publication date
CN100337031C (zh) 2007-09-12
CN1752441A (zh) 2006-03-29

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