CN102003421B - Efficient and energy-saving device for hydraulic station - Google Patents

Efficient and energy-saving device for hydraulic station Download PDF

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Publication number
CN102003421B
CN102003421B CN 201010570856 CN201010570856A CN102003421B CN 102003421 B CN102003421 B CN 102003421B CN 201010570856 CN201010570856 CN 201010570856 CN 201010570856 A CN201010570856 A CN 201010570856A CN 102003421 B CN102003421 B CN 102003421B
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CN
China
Prior art keywords
hydraulic
control valve
oil pump
valve
oil
Prior art date
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CN 201010570856
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Chinese (zh)
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CN102003421A (en
Inventor
周林龙
刘波
徐凤海
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泰兴市同济工程机械厂
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Priority to CN 201010570856 priority Critical patent/CN102003421B/en
Publication of CN102003421A publication Critical patent/CN102003421A/en
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Publication of CN102003421B publication Critical patent/CN102003421B/en

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Abstract

The invention relates to an efficient and energy-saving device for a hydraulic station. The device comprises a control cabinet, a hydrocylinder, a hydraulic control valve, an oil pump with a motor, a pressure gauge with an electric contact, an electromagnetic relief valve, an accumulator, a check valve and an intelligent control valve, wherein the intelligent control valve is arranged between the inlet of the oil pump and a hydraulic oil tank and connected with the hydraulic control valve through the accumulator; an oil return tubule which is communicated with the hydraulic oil tank is arranged on the oil pump; the check valve and the pressure gauge with the electric contact are arranged between the oil pump and the hydraulic control valve in turn; a pipeline between the check valve and the pressure gauge with the electric contact is communicated with the oil tank through the electromagnetic relief valve; and the intelligent control valve, the pressure gauge with the electric contact and the electromagnetic relief valve are all connected with the control cabinet. The device has the advantages that: the structure is simple; cooling equipment does not need to be added; the using cost is low; the control cabinet is matched with the intelligent control valve, so that the hydrocylinder is automatically boosted, and high-speed oil return is avoided and the oil pump can run in an unpowered mode continuously; the whole energy consumption is low; and the equipment runs safely, has a long service life and is environmental-friendly.

Description

The hydraulic station efficient energy-saving device

Technical field

The present invention relates to a kind of hydraulic station energy saving device, is a kind of hydraulic station efficient energy-saving device of service intermittent specifically.

Background technique

At present blast furnace hydraulic stands in production period, hydraulic pump motor works of not stopping work in 24 hours, or in short-term frequent heavy load starting work, and one side causes the waste of the energy, the working life of having reduced on the other hand electric elements and hydraulic element.The hydraulic pump motor of frequent short-term operation causes that the electric motor starting electric current is large, impact device, and energy waste is serious; Oil pump ceaselessly oil transportation or repeatedly short-term operation 24 hours every days, the oil mass of oil pump output only has about 20% to be passed to operating cylinder, other about 80% oil mass has all flowed back at a high speed fuel tank by relief valve, about 80% the oil stream that overflows back fuel tank has all been done idle work and has been converted to heat energy, cause oil temperature rising in the fuel tank, the Sealings such as hydraulic system cushion rubber are produced harm, must be equipped with corresponding cooling equipment simultaneously and cool off, device structure is complicated, and user cost is high.

Summary of the invention

In order to solve the deficiencies such as hydraulic station structure is complicated in the prior art, user cost is high, energy consumption is high, service life of equipment is short, the invention provides a kind of simple in structure, need not set up cooling equipment, user cost is low, and motor service intermittent, energy consumption are low, the hydraulic station efficient energy-saving device of long service life.

The technical solution used in the present invention is: a kind of hydraulic station efficient energy-saving device, the oil pump that comprises control cabinet, hydraulic jack, hydraulic control valve and translator, the oil pump import connects hydraulic oil container, the oil pump outlet is through hydraulic control valve connecting fluid compressing cylinder, hydraulic control valve is connected with motor and is connected control cabinet, its technical characterstic is also to comprise pressure gauge with electric contact, electromagnetic relief valve, accumulator, one-way valve and intelligent control valve, described intelligent control valve is arranged between oil pump import and the hydraulic oil container, and intelligent control valve is through accumulator connecting fluid pressure control valve; Described oil pump is provided with the little tubule of oil return that is communicated with hydraulic oil container, is provided with successively one-way valve and pressure gauge with electric contact between described oil pump outlet and the hydraulic control valve, and the pipeline between one-way valve and the pressure gauge with electric contact is communicated to fuel tank through electromagnetic relief valve; Described intelligent control valve, pressure gauge with electric contact and electromagnetic relief valve are connected and are connected control cabinet.

Further, be provided with one-way valve between described intelligent control valve and the hydraulic oil container.

Again further, be provided with pressure gauge between described intelligent control valve and the accumulator.

When hydraulic jack must push the work forward, set the high-pressure of pressure gauge with electric contact, the control cabinet starting electrical machinery drives operation of oil pump, control cabinet control this moment intelligent control valve connects fuel tank and oil pump, electromagnetic relief valve are closed, oil pump aspirated liquid force feed is delivered to hydraulic control valve through one-way valve, intelligent control valve, pressure gauge with electric contact, and hydraulic control valve control hydraulic oil promotes hydraulic jack work and controls simultaneously hydraulic oil to the accumulator hydraulic energy-accumulating; When pressure gauge with electric contact reaches the setting height for voltage pressure, control cabinet control motor stops, the simultaneously connection between control cabinet control hydraulic control valve and accumulator is closed, intelligent control valve turn-on accumulator and oil pump import, electromagnetic relief valve unlatching, hydraulic oil in the hydraulic jack is back to hydraulic oil container through hydraulic control valve, electromagnetic relief valve, and accumulator discharges hydraulic oil and is back to hydraulic oil container through intelligent control valve, oil pump, the little tubule of oil return.

Adopt above technological scheme, the beneficial effect that the present invention reaches is: hydraulic station is controlled the pressure stability of whole hydraulic system in the interval that pressure gauge with electric contact is set by this energy-conservation device, control cabinet comes the work of control oil pump according to the pressure of system.Low when system pressure, when oil mass need to be replenished, control cabinet control motor gets electric startup, oil pump starts replenishment system pressure, oil mass without inrush current, oil pump stops when adding to system's pressure maximum.When system pressure, when oil mass arrives lower bound, oil pump is automatic soft start again; Accumulator stored energy, intelligent control valve can be controlled system pressure, oil mass in the interval that pressure gauge with electric contact is set, and replenish when the pressure oil mass arrives lower bound, arrive high oil pump in limited time and stop.When accumulator released energy, oil return promoted oil pump and guarantees the incomplete stall of oil pump, and when motor started again, motor need not inrush current; The hydraulic oil liquid of oil pump output overflows back fuel tank no longer at a high speed and flogs a dead horse, the oil pump acting obtains 100% and all utilizes, the oil that original oil pump overflows back fuel tank accounts for about 80% of the whole oil transportation amounts of oil pump, oil pump and hydraulic element have shortened for about 80% running time, thereby saving power, the working life that can greatly strengthen oil pump and hydraulic element simultaneously; No longer high speed overflow of hydraulic oil can reduce the oil temperature of hydraulic station, need not be equipped with cooling equipment, reduces user cost, and the working life that has greatly strengthened sealing and hydraulic oil, also can stop the oil impregnate phenomenon, reaches the purpose of hygienic environment-protecting.

The present invention is simple in structure, need not set up cooling equipment, and user cost is low, adopt control cabinet cooperate intelligent control valve realize the Automatic-boosting of hydraulic jack, without high speed oil return and the unpowered continuous running of oil pump, whole energy consumption is low, equipment operation safety, long service life, environmentally safe.

Description of drawings

Fig. 1 is structural representation of the present invention.

Among the figure: hydraulic oil container 1, intelligent control valve 2, oil pump 3, motor 4, one-way valve 5,13, electromagnetic relief valve 6, pressure gauge with electric contact 7, hydraulic control valve 8, hydraulic jack 9, control cabinet 10, accumulator 11, pressure gauge 12, the little tubule 14 of oil return.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

Shown in Figure 1, the hydraulic station efficient energy-saving device comprises hydraulic oil container 1, intelligent control valve 2, oil pump 3, motor 4, one-way valve 5,13, electromagnetic relief valve 6, pressure gauge with electric contact 7, hydraulic control valve 8, hydraulic jack 9, control cabinet 10, accumulator 11 and pressure gauge 12.Hydraulic oil container 1 connects oil pump 3 through one-way valve 13, intelligent control valve 2 successively, oil pump 3 is with motor 4, oil pump 3 connects respectively pressure gauge with electric contact 7 and electromagnetic relief valve 6 through one-way valve 5, electromagnetic relief valve 6 is communicated with hydraulic oil container 1, oil pump 3 is communicated with hydraulic oil container 1 through the little tubule 14 of oil return, pressure gauge with electric contact 7 connecting fluid pressure control valves 8, hydraulic control valve 8 connecting fluid compressing cylinders 9; Intelligent control valve 2 is successively through pressure gauge 12, accumulator 11 connecting fluid pressure control valves 8; Intelligent control valve 2, motor 4, electromagnetic relief valve 6, pressure gauge with electric contact 7, hydraulic control valve 8 are connected with pressure gauge and are all connected control cabinet 10.

At first set system's high-pressure of pressure gauge with electric contact, control cabinet calculates system's low level voltage according to accumulator, hydraulic jack specification and use occasion requirement; The control cabinet starting electrical machinery drives operation of oil pump, when reaching, pressure gauge with electric contact sets low level pressure, control cabinet control intelligent control valve connects fuel tank and oil pump, electromagnetic relief valve are closed, oil pump aspirated liquid force feed is delivered to hydraulic control valve through one-way valve, intelligent control valve, pressure gauge with electric contact, and hydraulic control valve control hydraulic oil promotes hydraulic jack work and controls simultaneously hydraulic oil to the accumulator hydraulic energy-accumulating; When pressure gauge with electric contact reaches the setting height for voltage voltage, control cabinet control motor stops, the simultaneously connection between control cabinet control hydraulic control valve and accumulator is closed, intelligent control valve turn-on accumulator and oil pump import, electromagnetic relief valve unlatching, hydraulic oil in the hydraulic jack is back to hydraulic oil container through hydraulic control valve, electromagnetic relief valve, accumulator discharges hydraulic oil and is back to hydraulic oil container through intelligent control valve, oil pump, the little tubule of oil return, and the pressure gauge with electric contact System Testing Pressure reduces gradually until low level pressure repeats above-mentioned working procedure.

When hydraulic station is worked, be connected in the pressure gauge test accumulation of energy pressure between accumulator and intelligent control valve, guarantee that system is down in the process of low level pressure by high-pressure, the accumulator self-energy can continue to promote oil pump and do unpowered rotation, be conducive to the again startup of oil pump, motor need not inrush current, prolongs motor working life.

Claims (3)

1. hydraulic station efficient energy-saving device, comprise control cabinet (10), hydraulic jack (9), the oil pump (3) of hydraulic control valve (8) and translator (4), the oil pump import connects hydraulic oil container, the oil pump outlet is through hydraulic control valve connecting fluid compressing cylinder, hydraulic control valve is connected with motor and is connected control cabinet, it is characterized in that: also comprise pressure gauge with electric contact (7), electromagnetic relief valve (6), accumulator (11), one-way valve (5) and intelligent control valve (2), described intelligent control valve (2) is arranged between oil pump (3) import and the hydraulic oil container (1), and intelligent control valve is through accumulator (11) connecting fluid pressure control valve; Described oil pump is provided with the little tubule of oil return (14) that is communicated with hydraulic oil container, be provided with successively one-way valve (5) and pressure gauge with electric contact (7) between described oil pump outlet and the hydraulic control valve, the pipeline between one-way valve and the pressure gauge with electric contact is communicated to fuel tank through electromagnetic relief valve (6); Described intelligent control valve, pressure gauge with electric contact and electromagnetic relief valve are connected and are connected control cabinet.
2. hydraulic station efficient energy-saving device according to claim 1 is characterized in that: be provided with one-way valve (13) between described intelligent control valve (2) and the hydraulic oil container (1).
3. hydraulic station efficient energy-saving device according to claim 1 is characterized in that: be provided with pressure gauge (12) between described intelligent control valve (2) and the accumulator (11).
CN 201010570856 2010-12-03 2010-12-03 Efficient and energy-saving device for hydraulic station CN102003421B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010570856 CN102003421B (en) 2010-12-03 2010-12-03 Efficient and energy-saving device for hydraulic station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010570856 CN102003421B (en) 2010-12-03 2010-12-03 Efficient and energy-saving device for hydraulic station

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CN102003421A CN102003421A (en) 2011-04-06
CN102003421B true CN102003421B (en) 2013-02-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314893B (en) * 2014-08-27 2016-08-24 南京创贝高速传动机械有限公司 A kind of hydraulic servocontrol experimental bench system
CN106286199A (en) * 2015-06-11 2017-01-04 哈尔滨飞机工业集团有限责任公司 A kind of hydraulic pressure voltage supply equipment
CN104929001A (en) * 2015-06-15 2015-09-23 宝鸡南车时代工程机械有限公司 Hydraulic power unit for subway grinding car
CN104976170B (en) * 2015-07-15 2017-05-10 中冶华天南京工程技术有限公司 Hydraulic pump station with energy-saving buffering protection device
CN105508314A (en) * 2016-01-31 2016-04-20 太原理工大学 Crusher main motor hydraulic control circuit and control method thereof
CN105782174A (en) * 2016-05-11 2016-07-20 慕泽跃 Energy feed type constant deceleration hydraulic station
CN106122124B (en) * 2016-08-12 2018-10-26 中色科技股份有限公司 Stretching-machine hydraulic power unit oil supply system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142581A (en) * 1995-12-26 2000-11-07 Denso Corporation Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same
CN1323956A (en) * 2001-07-13 2001-11-28 陈荣明 Power-saving energy-accumulating hydraulic power system
EP1498614A2 (en) * 2003-07-18 2005-01-19 Young & Franklin, Inc. Electro-hydrostatic actuator with a failsafe system
CN101220823A (en) * 2006-11-14 2008-07-16 胡斯可国际股份有限公司 Energy recovery and reuse methods for a hydraulic system
CN201574985U (en) * 2009-12-31 2010-09-08 上海汇益控制系统股份有限公司 Rapid propelling low-power energy-saving hydraulic servo system
CN201925249U (en) * 2010-12-03 2011-08-10 泰兴市同济工程机械厂 High-efficient energy-saving device of hydraulic station

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6142581A (en) * 1995-12-26 2000-11-07 Denso Corporation Hydraulic circuit having a rotary type pump and brake apparatus for a vehicle provided with the same
CN1323956A (en) * 2001-07-13 2001-11-28 陈荣明 Power-saving energy-accumulating hydraulic power system
EP1498614A2 (en) * 2003-07-18 2005-01-19 Young & Franklin, Inc. Electro-hydrostatic actuator with a failsafe system
CN101220823A (en) * 2006-11-14 2008-07-16 胡斯可国际股份有限公司 Energy recovery and reuse methods for a hydraulic system
CN201574985U (en) * 2009-12-31 2010-09-08 上海汇益控制系统股份有限公司 Rapid propelling low-power energy-saving hydraulic servo system
CN201925249U (en) * 2010-12-03 2011-08-10 泰兴市同济工程机械厂 High-efficient energy-saving device of hydraulic station

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Inventor after: Zhou Linlong

Inventor after: Liu Bo

Inventor after: Xu Fenghai

Inventor before: Zhou Linlong

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Free format text: CORRECT: INVENTOR; FROM: ZHOU LINLONG TO: ZHOU LINLONG LIU BO XU FENGHAI

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Granted publication date: 20130213

Termination date: 20171203