CN105782137B - A kind of super-pressure accumulator - Google Patents

A kind of super-pressure accumulator Download PDF

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Publication number
CN105782137B
CN105782137B CN201610255092.7A CN201610255092A CN105782137B CN 105782137 B CN105782137 B CN 105782137B CN 201610255092 A CN201610255092 A CN 201610255092A CN 105782137 B CN105782137 B CN 105782137B
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CN
China
Prior art keywords
hydraulic cylinder
pressure
accumulator
pressure hydraulic
piston
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Application number
CN201610255092.7A
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Chinese (zh)
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CN105782137A (en
Inventor
艾超
赵小龙
张亮
董彦武
孔祥东
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燕山大学
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Application filed by 燕山大学 filed Critical 燕山大学
Priority to CN201610255092.7A priority Critical patent/CN105782137B/en
Publication of CN105782137A publication Critical patent/CN105782137A/en
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Publication of CN105782137B publication Critical patent/CN105782137B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02Installations or systems with accumulators
    • F15B1/04Accumulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00Accumulators
    • F15B2201/40Constructional details of accumulators not otherwise provided for

Abstract

A kind of super-pressure accumulator, mainly it is made up of accumulator, the first connecting line, normal pressure hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line;The oil inlet of accumulator connects with one end of the first connecting line, and the other end of the first connecting line connects with the rodless cavity of normal pressure hydraulic cylinder;Connected between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder by a piston rod with spring, the rodless cavity of ultrahigh-pressure hydraulic cylinder connects with one end of the second connecting line, and the other end of the second connecting line connects with Superhigh Pressure Hydraulic System.The present invention has the advantages that cost is low, applicable different system.

Description

A kind of super-pressure accumulator

Technical field

The present invention relates to ultrahigh-pressure hydraulic technical field, especially a kind of super-pressure accumulator.

Background technology

In recent years, the industrialization system using hydraulic system as power drive system is more and more common, and with science The rapid development of technology, to high-pressure hydraulic even ultrahigh-pressure hydraulic in industrial production, engineering machinery and military field The needs of system are more and more urgent.

Accumulator is critically important energy-storage travelling wave tube in hydraulic system as hydraulic pressure auxiliary important in hydraulic system. In hydraulic system, accumulator plays stocking system excess pressure fluid, discharges used for system when needed, to reach The purpose of energy saving of system.Another important function of accumulator is exactly the system that reduces in compression shock caused by normal work And pressure fluctuation.In addition, accumulator plays an important role in protection system normal operation, reduction vibration and noise etc..

With the height that sophisticated equipment is increasing, common for the demand of high-pressure hydraulic and Superhigh Pressure Hydraulic System Pressure accumulator far can not meet the requirement of current hydraulic system, and a kind of super-pressure suitable for Superhigh Pressure Hydraulic System stores The development and application of energy device becomes a new study hotspot.

The content of the invention

Present invention aims at provide one kind suitable for Superhigh Pressure Hydraulic System and can reduce compression shock and pressure fluctuation Super-pressure accumulator.

To achieve the above object, following technical scheme is employed:Super-pressure accumulator of the present invention is by accumulator, first Connecting line, normal pressure hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line composition;Accumulator bag Include housing, charge valve, gas-liquid slider and oil inlet, charge valve and be arranged on case top, the middle part in housing sets gas-liquid Slider, oil inlet is provided with the bottom of housing;Normal pressure hydraulic cylinder is made up of cylinder body and piston;Ultrahigh-pressure hydraulic cylinder is by resistance to cylinder pressure Body and pressure-resistant piston composition;

The oil inlet of accumulator connects with one end of the first connecting line, the other end and the normal pressure hydraulic pressure of the first connecting line The rodless cavity connection of cylinder;Pass through the work with spring between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder Stopper rod connects, and the rodless cavity of ultrahigh-pressure hydraulic cylinder connects with one end of the second connecting line, the other end of the second connecting line and Superhigh Pressure Hydraulic System connects.

Further, the piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A One end is connected with the piston of normal pressure hydraulic cylinder, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.

Further, the accumulator is capsule every formula accumulator or piston accumulator.

Further, the normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is big, piston stroke is short;Ultrahigh-pressure hydraulic cylinder is Piston area is small, the hydraulic cylinder of piston stroke length.

Compared with prior art, the invention has the advantages that:

1st, simple in construction, production cost is low, easy to control;

2nd, the piston rod center section of accumulator uses compression spring material, by the spring of adapted difference coefficient of elasticity, The range of super-pressure accumulator can be changed, suitable for multiple work systems.

Brief description of the drawings

Fig. 1 is the overall structure sketch of super-pressure accumulator of the present invention.

Drawing reference numeral:1- housings;2- charge valves;3- gas-liquid sliders;4- oil inlets;5- cylinder bodies;6- pistons;Work that 7- is pressure-resistant Plug;8- is pressure-resistant cylinder body;Piston rods of the 9- with spring;The connecting lines of 10- first;The connecting lines of 11- second.

Embodiment

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in figure 1, super-pressure accumulator of the present invention is by accumulator, the first connecting line 10, normal pressure hydraulic cylinder, band Piston rod 9, ultrahigh-pressure hydraulic cylinder and the second connecting line 11 of spring form.

Accumulator includes housing 1, charge valve 2, gas-liquid slider 3 and oil inlet 4, and charge valve is arranged on case top, Middle part in housing sets gas-liquid slider, and oil inlet is provided with the bottom of housing;Accumulator housing is divided into by gas-liquid slider Air chamber and liquid room, air chamber are full of inert gas by charge valve, and oil inlet is connected by plain tubing with the rodless cavity of normal pressure hydraulic cylinder, The topping up and discharge opeing process of accumulator can be completed by oil inlet.

Normal pressure hydraulic cylinder is made up of cylinder body 5 and piston 6;Ultrahigh-pressure hydraulic cylinder is made up of pressure-resistant cylinder body 8 and pressure-resistant piston 7. Normal pressure hydraulic cylinder is the hydraulic cylinder that piston area is relatively large, piston stroke is relatively short;Ultrahigh-pressure hydraulic cylinder is piston area Hydraulic cylinder relatively small, piston stroke is relatively long.

Accumulator can be capsule every formula accumulator or piston accumulator.The one of the oil inlet of accumulator and the first connecting line End connection, the other end of the first connecting line connect with the rodless cavity of normal pressure hydraulic cylinder;The piston and super-pressure of normal pressure hydraulic cylinder Connected between the pressure-resistant piston of hydraulic cylinder by a piston rod with spring, the rodless cavity of ultrahigh-pressure hydraulic cylinder is connected with second One end connection of pipeline, the other end of the second connecting line connect with Superhigh Pressure Hydraulic System.

The piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A one end and normal pressure The piston of hydraulic cylinder is connected, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.Piston rod center section with spring Purpose using compression spring material is the stream in order to reach accumulator topping up often between pressure cylinder and ultrahigh-pressure hydraulic cylinder Amount balance.

The present invention the course of work approximately as:

1st, the filling process of super-pressure accumulator --- the second connecting line is connected with hydraulic system, and super-pressure of the present invention stores After energy device participates in hydraulic work system, the working media of system enters the rodless cavity of the ultrahigh-pressure hydraulic cylinder of super-pressure accumulator, When system pressure raises, the pressure of working media also increases in the rodless cavity of ultrahigh-pressure hydraulic cylinder, normal pressure hydraulic cylinder The pressure-resistant piston of piston, the piston rod with spring and ultrahigh-pressure hydraulic cylinder working media in the rodless cavity of ultrahigh-pressure hydraulic cylinder is high Pressure pressure effect under to normal pressure hydraulic cylinder move, under the promotion of the piston rod with spring the piston of normal pressure hydraulic cylinder also therewith to The rodless cavity of normal pressure hydraulic cylinder moves, and the working media in normal pressure hydraulic cylinder rodless cavity is under the promotion of piston by the first connecting tube Road, capsule flow into the liquid room of accumulator every the oil inlet of formula accumulator or piston accumulator, as working media is in accumulator liquid Increasing in room, the working medium pressure rise in accumulator liquid room, capsule is every in formula accumulator or piston accumulator liquid room Working media promotes gas-liquid slider to be moved to air chamber, and capsule is every the inert gas quilt in formula accumulator or piston accumulator air chamber After compression volume diminish, pressure rise.In whole process, capsule is every one level pressure of formula accumulator or piston accumulator indoor storage The working media of power and volume, referred to as topping up stage.

2nd, the discharge opeing process of super-pressure accumulator --- the second connecting line is connected with hydraulic system, and super-pressure of the present invention stores After energy device participates in hydraulic work system, when system pressure is less than the pressure of the working media in ultrahigh-pressure hydraulic cylinder rodless cavity, Capsule is every the gas-liquid slider of formula accumulator or piston accumulator in capsule every formula accumulator or piston accumulator air chamber gas pressure Moved in the presence of power to liquid room, capsule is every the working media in formula accumulator or piston accumulator liquid room in gas-liquid slider The lower pressure rise of effect, the rodless cavity of normal pressure hydraulic cylinder is flowed into by oil inlet, the first connecting line, with normal pressure hydraulic cylinder without The pressure rise of working media in rod cavity, the piston of normal pressure hydraulic cylinder, the piston rod with spring and ultrahigh-pressure hydraulic cylinder it is resistance to Pressure piston is promoted the rodless cavity to ultrahigh-pressure hydraulic cylinder to move, with working medium pressure in ultrahigh-pressure hydraulic cylinder rodless cavity Raise, the working media in ultrahigh-pressure hydraulic cylinder rodless cavity discharges to hydraulic system, until reaching new poised state.Above mistake Cheng Zhong, capsule are emitted the working media stored by the topping up stage is some or all of every formula accumulator or piston accumulator For system use, referred to as discharge opeing process.

Super-pressure accumulator proposed by the invention, the hydraulic system of sophisticated equipment is met to super-pressure accumulator Demand.This super-pressure accumulator structure is simple, and super-pressure is realized using the Normal hydraulic part such as conventional accumulator, hydraulic cylinder The effect of accumulator;Common accumulator, normal pressure hydraulic cylinder and connecting line in this super-pressure accumulator are all common Hydraulic Elements, the only material of ultrahigh-pressure hydraulic cylinder and processing technology need the concrete condition according to applicable Superhigh Pressure Hydraulic System To determine;The center section of piston rod in this super-pressure accumulator uses compression spring structure, can be different by adapted The spring of coefficient of elasticity, to change the range of super-pressure accumulator, reach the purpose that an accumulator is applied to multiple systems.

Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.

Claims (1)

  1. A kind of 1. super-pressure accumulator, it is characterised in that:The super-pressure accumulator is by accumulator, the first connecting line, normal pressure Hydraulic cylinder, the piston rod with spring, ultrahigh-pressure hydraulic cylinder and the second connecting line composition;Accumulator include housing, charge valve, Gas-liquid slider and oil inlet, charge valve are arranged on case top, and the middle part in housing sets gas-liquid slider, in housing Bottom is provided with oil inlet;Normal pressure hydraulic cylinder is made up of cylinder body and piston;Ultrahigh-pressure hydraulic cylinder is by pressure-resistant cylinder body and pressure-resistant piston group Into;
    The oil inlet of accumulator connects with one end of the first connecting line, the other end and the normal pressure hydraulic cylinder of the first connecting line Rodless cavity connects;Pass through a piston rod with spring between the piston of normal pressure hydraulic cylinder and the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder Connection, the rodless cavity of ultrahigh-pressure hydraulic cylinder connect with one end of the second connecting line, the other end and superelevation of the second connecting line Hydraulic fluid presses system connectivity;The piston rod with spring is sequentially connected and formed by body of rod A, compression spring and body of rod B, body of rod A mono- End is connected with the piston of normal pressure hydraulic cylinder, and body of rod B one end is connected with the pressure-resistant piston of ultrahigh-pressure hydraulic cylinder.
CN201610255092.7A 2016-04-22 2016-04-22 A kind of super-pressure accumulator CN105782137B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610255092.7A CN105782137B (en) 2016-04-22 2016-04-22 A kind of super-pressure accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610255092.7A CN105782137B (en) 2016-04-22 2016-04-22 A kind of super-pressure accumulator

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CN105782137A CN105782137A (en) 2016-07-20
CN105782137B true CN105782137B (en) 2017-12-29

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107084162B (en) * 2017-05-12 2018-10-09 武汉理工大学 A kind of input-output characteristic controllable hydraulic energy storage equipment

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CN101476571A (en) * 2009-01-24 2009-07-08 燕山大学 Parameter self-adapting and regulation leather bag type hydraulic accumulator
CN101852220A (en) * 2010-05-04 2010-10-06 中煤北京煤矿机械有限责任公司 Controllable high-pressure high-flow generating device and control method thereof
DE202009018583U1 (en) * 2009-08-19 2012-02-28 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Hydropneumatic piston accumulator
CN102383729A (en) * 2011-07-21 2012-03-21 中国海洋石油总公司 Slurry power bidirectional control hydraulic system for drilling and operation method thereof
CN202418396U (en) * 2012-02-01 2012-09-05 支绍华 Bidirectional hydraulic buffer
CN102838186A (en) * 2012-07-31 2012-12-26 朱荣辉 Membrane seawater desalination pressurization and energy recovery integrated method and device
CN203223265U (en) * 2013-01-11 2013-10-02 江苏公大动力技术有限公司 Overflow valve and actuator
CN203223429U (en) * 2013-05-10 2013-10-02 刘建阳 Air bag type energy accumulator auxiliary pressure regulating device
CN104405711A (en) * 2014-11-20 2015-03-11 沈阳东北电力调节技术有限公司 Overload electrohydraulic executing mechanism drive valve system with compensation function
CN204327607U (en) * 2014-12-01 2015-05-13 东北制药集团股份有限公司 A kind of piston accumulator

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JP2003144856A (en) * 2001-11-12 2003-05-20 Sasakura Engineering Co Ltd Energy recovery apparatus for reverse osmotic membrane apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1572392A (en) * 2003-05-09 2005-02-02 东芝机械株式会社 Injection system and casting method of die casting machine
CN101476571A (en) * 2009-01-24 2009-07-08 燕山大学 Parameter self-adapting and regulation leather bag type hydraulic accumulator
DE202009018583U1 (en) * 2009-08-19 2012-02-28 Hemscheidt Fahrwerktechnik Gmbh & Co. Kg Hydropneumatic piston accumulator
CN101852220A (en) * 2010-05-04 2010-10-06 中煤北京煤矿机械有限责任公司 Controllable high-pressure high-flow generating device and control method thereof
CN102383729A (en) * 2011-07-21 2012-03-21 中国海洋石油总公司 Slurry power bidirectional control hydraulic system for drilling and operation method thereof
CN202418396U (en) * 2012-02-01 2012-09-05 支绍华 Bidirectional hydraulic buffer
CN102838186A (en) * 2012-07-31 2012-12-26 朱荣辉 Membrane seawater desalination pressurization and energy recovery integrated method and device
CN203223265U (en) * 2013-01-11 2013-10-02 江苏公大动力技术有限公司 Overflow valve and actuator
CN203223429U (en) * 2013-05-10 2013-10-02 刘建阳 Air bag type energy accumulator auxiliary pressure regulating device
CN104405711A (en) * 2014-11-20 2015-03-11 沈阳东北电力调节技术有限公司 Overload electrohydraulic executing mechanism drive valve system with compensation function
CN204327607U (en) * 2014-12-01 2015-05-13 东北制药集团股份有限公司 A kind of piston accumulator

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