CN108266412A - A kind of step heating-furnace hydro-cushion reducing energy consumption device produced - Google Patents
A kind of step heating-furnace hydro-cushion reducing energy consumption device produced Download PDFInfo
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- CN108266412A CN108266412A CN201810042364.4A CN201810042364A CN108266412A CN 108266412 A CN108266412 A CN 108266412A CN 201810042364 A CN201810042364 A CN 201810042364A CN 108266412 A CN108266412 A CN 108266412A
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 52
- 238000003466 welding Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 11
- 238000004134 energy conservation Methods 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 231100000719 pollutant Toxicity 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 9
- 230000001429 stepping effect Effects 0.000 description 9
- 238000005381 potential energy Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
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- 230000036506 anxiety Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of step heating-furnace hydro-cushion reducing energy consumption device produced, it is supplied from a gas narrow-necked earthen jar to accumulator, by valve, the plunger shaft into hydraulic cylinder supplies oil pressure for it, rack is pushed to rise, when rack touches steel billet on fixed rack, the valve of accumulator is controlled to close, while valve is opened, accumulator continues to lift up rack and steel billet to hydraulic pressure oil supply cylinder pressure, closes valve in place.Declining counteragent during with rising, being declined using rack and steel billet dead weight, high pressure oil is respectively pressed into each accumulator in piston rod cavity pressure Will plunger shafts in liquid feeding cylinder pressure.Complete a cycle.Lifting speed and position all control completion by proportioning valve 7.Advantage；Design and load adjustment（Base changes again）It is simple and convenient.Energy efficiency emission reduction.Original system temporarily retains constant.The difference operational proof production of two systems can be switched fast.Equipment and prototype part are all mature and reliables, small investment.Investment can recycle for about one year.It can complete to be transformed in medium-capital overhauling.
Description
Technical field
The present invention relates to a kind of step heating-furnace hydro-cushion reducing energy consumption devices produced, piston are added to store using gas narrow-necked earthen jar
Energy device is realized the decline potential energy of step heating-furnace lift platform and steel billet all of accumulator energy storage, is used further to promote liter
Drop the promotion of rack and steel billet, reach complete equipilibrium the two loads, so that liquid gas, valve and cylinder body need only be overcome in transmission and
The resistance of some very littles in movement, it is energy saving to greatest extent so as to reach, be also because of certain resistance original systems existing for, in this way
Also can be approximately considered step heating-furnace its heavy duty elevating movement be in lossless operation.
It is of the invention to be used in the transmissions such as pneumatic, hydraulic pressure, machinery, belong to pneumatic, hydraulic pressure, machinery, air-liquid, which flattens, to weigh, is energy saving
Field.
Background technology
Current each production field has the occasion of a large amount of lifting loading movements, hydraulic pressure drive control system is largely used in engineering.It
Before, in order to control the quick and stable of large inertia object moving state and be accurately positioned, engineers and technicians are in hydraulic control side
Face designs a lot of ways, and also achieves relatively satisfactory effect.But due in use in every profession and trade and each equipment because of the spy of load
Point, technological requirement and control are different, and at present in the hydraulic system of object lifting or pendulum motion is included, movement every time declines
Or potential energy when swinging is not fully utilized extensively, is all converted into thermal energy mostly, this is not only the waste of the energy, also needs
The cooling power that user has to increase hydraulic system's media is wanted to consume, with control system oil temperature, especially in step heating-furnace liquid
It is a kind of heavily loaded occasion of frequent elevating movement in pressure transmission.Though the useful variable frequency hydraulic pump motor system of these systems now, liquid
Differential circuit etc. is used to do a few thing when the use of constant pressure variable displacement pump or object being pressed to decline, but object declines gesture
Can recycling always not all of.
Such as use gas-liquid linked accumulator hydro-cushion, on the one hand, it is energy-saving, also increase certain income, Ke Yiti
The competitiveness of high enterprise；On the other hand, with world energy sources anxiety, environmental pollution is serious, ecological disequilibrium, such as uses hydraulic pressure
Balance reaches energy-saving and emission-reduction and reduces health and existence that haze generation is also beneficial to the mankind.
To current steel rolling mill of iron and steel enterprise, a large amount of (there are about more than 1000 sets in the whole nation) use in type, line, stick, plank production
Step heating-furnace hydraulic drive, it is energy consumption seat of honour rich and influential family in such factory's subsidiary engine transmission, such as uses patent of the present invention, then can reduce
More than 70~85% transmission total energy consumption such as by taking stick, wire reheating furnace hydraulic drive as an example, can save electric energy more than 800,000 every year
Degree, can reduce operating cost and increase income about 900,000 yuan.It is such as used in bloom or Ban Cai Sheng Productivity, energy efficiency bigger.
Step heating-furnace hydro-cushion is system engineering since it is related to multiple professions such as hydraulic pressure, equipment, automatically controlled, Shen
Ask someone once had multinomial patent many years ago, recent Ye You enterprises are being explored, but potential energy when high-order decline is seen at end at present is by its whole
The good scheme of energy storage.Country reduces pollution in every possible means now, reduces influence of the haze to health of people, iron and steel enterprise produces at present
Though can be superfluous, some enterprise operations loss, capital collection is difficult, and step heating-furnace hydraulic drive must be used by producing, because
This must innovate this equipment transition using hydro-cushion.
Invention content
The purpose of the present invention is：Include object lifting or pendulum motion hydraulic system in, every time movement decline or
Potential energy during swing is not fully utilized extensively, is a kind of frequently lifting fortune especially in step heating-furnace hydraulic drive
Dynamic heavily loaded occasion, after applying the present invention, can by object decline potential energy recycling all of.
In order to achieve the above object, there is provided a kind of step heating-furnace liquid produced for a technical solution of the invention
Flatten weighing apparatus reducing energy consumption device, which is characterized in that weld high pressure gas narrow-necked earthen jar including two large capacities, two large capacities weld high pressure gas
Narrow-necked earthen jar is connected respectively via respective smash valve group one with piston power accumulator one and piston power accumulator two, piston power accumulator one and work
Plug accumulator two is respectively connect with mounted in safe valve group thereon, and the oil return opening of two safe valve groups is connected with oil return pipeline,
The high pressure hydraulic fluid port of two safe valve groups is connected respectively with control valve group one and control valve group two, control valve group one and control valve group two
The piston accent of the hydraulic cylinder controlled with position is then connected to, is first controlled from piston power accumulator once control valve group one to band position
Hydraulic cylinder feed flow, push lift platform rise, when lift platform rise to contact be placed on the steel billet of fixed rack when, control valve
Group one is closed, while control valve group two is opened, piston power accumulator two through control valve group two to the hydraulic cylinder feed flow controlled with position,
Lift platform is pushed to rise simultaneously with steel billet；When lift platform declines, by the pressure of hydraulic cylinder controlled with position and lifting
The dead weight of rack and steel billet, high pressure oil is pushed back again in piston power accumulator one and piston power accumulator two (single lift platform from
Weight).
Preferably, the high pressure hydraulic fluid port of safe valve group being connected with piston power accumulator one is connect with control valve group three, is controlled
The high pressure accent connection high pressure line of valve group three processed, high pressure line pass through high-pressure ball valve two and the built high-voltage tube of original hydraulic system
Line is connected, and the oil return accent of control valve group three connects back to oil pipeline, and oil return pipeline passes through high-pressure ball valve three and original hydraulic system
Built oil return pipeline is connected；
The high pressure hydraulic fluid port of safe valve group being connected with piston power accumulator two is connect with control valve group four, control valve group four
High pressure accent connection high pressure line, the oil return accent of control valve group four connects back to oil pipeline.
Preferably, the piston power accumulator one and piston power accumulator two are divided by the control valve group one, control valve group two
Not to the hydraulic oil for leading to different pressures with the hydraulic cylinder that position controls, promoted or decline lift platform, lift platform and steel billet；If
Control valve group one and control valve group two are supplied when equipment lifts in pressure oil conveying to piston power accumulator one and piston power accumulator two
Different pressures flow error is generated in oil extraction, signal and automatic open close institute are sent out by piston power accumulator one and piston power accumulator two
Control valve group three and the control valve group four are stated, to piston power accumulator one and work from the high pressure line and the oil return pipeline
Fill in two supply and discharge hydraulic oil of accumulator.
Preferably, high pressure small gas cylinder is further included, a normally closed high-pressure ball valve is respectively set at the both ends of high pressure small gas cylinder, it is each to connect
The piston power accumulator one and the piston power accumulator two.
Preferably, the band position control hydraulic cylinder is reequiped with standard hydraulic cylinder, can provide continuous piston position variation
Signal is both power cylinder and master cylinder, has triple functions, the band position control hydraulic cylinder connection proportioning valve, proportioning valve
Connect built control pipeline, the high pressure line and the oil return pipeline of original hydraulic system, proportioning valve 3-position-3-way ratio
Valve or the supply and discharge speed oil for controlling rod end chamber respectively with two bi-bit bi-pass proportioning valves；Band position control hydraulic cylinder or
Person uses Numeric hydraulic cylinder.
Preferably, the large capacity welding high pressure gas narrow-necked earthen jar includes high pressure vertical welding gas narrow-necked earthen jar, and high pressure vertical welding gas narrow-necked earthen jar is stood
Formula is loaded on public base；The piston power accumulator one or the piston power accumulator two are all using the piston controlled with piston position
Accumulator, high pressure vertical welding gas narrow-necked earthen jar are connected with piston power accumulator by pipeline, valve group and filter device, wherein, filtering
Device separately has valve to be connected with the external world again, is discharged outside narrow-necked earthen jar convenient for pollutant.
Preferably, the piston power accumulator one or the piston power accumulator two are all stored using the piston controlled with piston position
It can device；The large capacity welding high pressure gas narrow-necked earthen jar superposition is inclined on pedestal, and two high pressure angle mounts weld gas narrow-necked earthen jar and are erected at band tiltedly
It supports on bearing, while the piston power accumulator with piston position control is also mounted on the band diagonal brace bearing, high pressure angle mount welding gas
Be connected between narrow-necked earthen jar and piston power accumulator by pipeline, valve group and filter device, wherein filter device separately have again valve with it is outer
Boundary is connected, and is discharged outside narrow-necked earthen jar convenient for pollutant.
There is provided a kind of step heating-furnace hydro-cushion reducing energy consumptions produced for another technical solution of the present invention
Device, which is characterized in that weld high pressure gas narrow-necked earthen jar including two large capacities, two large capacities weld high pressure gas narrow-necked earthen jar respectively via respective
Smash valve group one be connected with piston power accumulator one and piston power accumulator two, piston power accumulator one and piston power accumulator two are respective
It being connect with mounted in safe valve group thereon, the high pressure hydraulic fluid port of two safe valve groups is connected respectively with respective control valve group five, and two
Group control valve group five reconnects new clothes in the triple valve of original hydraulic system, and triple valve is connected to the stoste cylinder pressure in original hydraulic system again
On, during rising, lift platform is promoted by piston power accumulator one, lift platform is promoted by piston power accumulator two and steel billet rises；Under
During drop, conduct oneself with dignity under collective effect in pressure and the lift platform and steel billet of the hydraulic cylinder controlled with position, high pressure oil is pressed again
It returns in piston power accumulator one and piston power accumulator two.
Hydraulic balance system is a highly developed and widely used technology, its transmission is negative in being produced to step heating-furnace
Load is big, mainly lifting load, the load most of the time is repeatedly invariable, this is to use hydro-cushion most preferable and most can
Play the use occasion of its advantage.The present invention makes full use of existing equipment to be transformed or design and deposit with new, reaches more energy efficient purpose,
Specifically, the present invention provides two kinds of designing schemes to the step heating-furnace hydraulic transmission equipment transformation produced：One is profit
With the original double-cylinder hydraulic balanced energy conservation transformation device of step heating-furnace；The other is power hydraulic cylinder and control hydraulic cylinder are closed two
It is one, it had not only pushed lift platform and steel billet to lift but also control its speed and position, equipment was made more simply, more to save, new-old system
Switching is more convenient, less using equipment, and the pressure loss is also few.The energy-saving control method of two kinds of designing schemes provided by the invention
It is identical, effect is also the same.
Using the present invention, under the premise of original hydraulic system control mode is constant, control accuracy is unaffected, by whole liters
Load shedding lotus all balances automatically, greatly reduce original Normal hydraulic system main pump flow and main pump motor power (as long as
With 20% or so of original operating power).New design can also reduce fuel tank volume, cycle pump group flow and power of motor, cooling
The consumption etc. of the power of device and heater, cooling water.And the hydraulic valve bank latus rectum of some pipe-line systems and control lifting cylinder
Also it can greatly reduce, the cost of investment of corresponding component also can relative reduction.The present invention only in stepping furnace hydraulic drive with lifting
Expression is made in the related part of counterweight balance, and front and rear part is all omitted.
It is compared by taking the step heating-furnace hydraulic system of certain steel plant production bar product as an example, former step heating-furnace hydraulic pressure
System drives Variable plunger pumps with 5 75KW motors, and 4 is standby with 1, such as with this patent production system need only a pump operate, it is other
It is spare.After applying the present invention, more than 80 ten thousand degree of electric energy can be saved every year, can increase income more than 90 ten thousand yuan of the expenses such as energy saving, from now on also
The income for reducing charcoal discharge capacity may be converted into.
Specifically, the invention has the advantages that：
1) lifting load all balances, and can save energy synergy emission reduction.
2) former transmission system is motionless, can still maintain to produce, as long as hydraulic balance system of the invention will be connected in original system
Two ball valves open and close in pressure and oil return pipeline, can switch two systems and operate respectively, influence production without worrying.
3) investment is seldom, can recycle within 1 year or so.
4) transformation is simple, and many equipment original papers are all ripe, can all give dress, can complete to change in medium-capital overhauling is produced
It makes.
5) design, debugging simplification facilitate, as long as load calculating is substantially accurate, power cylinder and master cylinder stay certain surplus,
Other is exactly the pressure of regulating the qi flowing in the channels narrow-necked earthen jar, can be transferred to optimal state.
As long as 6) walking machinery ability can be born, heating is numerous in variety, that is, adapts to the variation of more multi-load.
Description of the drawings
Fig. 1 is that schematic device is transformed in a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation produced of structure type；
Fig. 2 is that device signal is transformed in the step heating-furnace double-cylinder hydraulic balanced energy conservation produced of another structure type
Figure；
Fig. 3 is the energy accumulator station schematic diagram that high pressure gas narrow-necked earthen jar founds dress and accumulator combination unit；
Fig. 4 is the energy accumulator station schematic diagram of high pressure gas narrow-necked earthen jar angle mount and accumulator combination unit.
Specific embodiment
Step heating-furnace hydro-cushion reducing energy consumption device provided by the invention, the potential energy that can decline object, is used
Accumulator reaches whole energy saving purposes.
Before the specific embodiment for introducing the present invention, first step heating-furnace Hydraulic Power Transmission System is illustrated.Step
It is into the summary of heating furnace production process：Step heating-furnace is used in various types, line, stick and plank factory, various stepping heating
The equipment composition of stove Hydraulic Power Transmission System is similar, is only load difference, and mechanical equipment is of different sizes, but basic
Function and control are all consistent.All it is by square billet, slab or the slab after continuous casting, can is cold or hot base, with roller-way from step
In into heating furnace side feed into stove, by with or without hydraulic drive pusher positioning or slab from step heating-furnace end face by liquid
(being named may be different, it is also possible to which liquid machine links or entirely by machine driving, determined by design, hydro-cushion section for pressure transmission support steel machine
Corresponding oil cylinder can be reserved in system) it inputs in stove.It after steel billet enters in stepping furnace, is required according to steel rolling process, walking machinery
It beginning to act, walking machinery generally sets lift platform and fixed rack, and steel billet, which enters in stove, to be placed on fixed rack,
Lift platform is generally below fixed rack about 100mm or so, elects lift platform to gently contacting fixed rack by oil cylinder during action
On steel billet after, then continue to lift up about 100mm or so simultaneously with steel billet, then translate again, raised by another translation hydraulic cylinder
After drop rack moves a certain distance simultaneously with steel billet, lift platform declines simultaneously with steel billet again, and downlink steel billet gently contacts fixed station
After frame, steel billet is parked in motionless on fixed rack after the step that moves ahead, and lift platform is further continued for declining, and after reaching bottom position, then retracts
To original position, one stepping period of steel billet is completed.This periodic action process is completed entirely by hydraulic drive, and steel billet adds in stepping
Hot stove inner edge advances, side is heated after reaching processing temperature, then exported outside stove by root, and various types product is rolled into for rolling mill.
Based on the above-mentioned course of work, the operation of step heating-furnace has following features：It is mainly lifting load, the lifting
Load is divided into two kinds：One kind for lift platform dead weight and its running resistance, its lifting action be it is whole, it is changeless；
Another kind is the load of steel billet weight, it has half of process to work (100 above fixed rack in height-rise drop periodic process
Millimeter in the range of lift), and load change sometimes (rolling products of different specifications when, steel billet section size will change sometimes
Become, thus load sometimes variation, because being produced by mass tissue, load is opposite or fixed, sometimes during start-stop stove,
Steel billet is stepped up entering in stove or exiting in stove from single, though this seldom occurs, also Gei Xie Decision equilibrium problems are complicated for this
Change, this brings certain difficulty to hydro-cushion).Lifting load accounts for about the 85% of total load (because there is platform in a stepping period
Frame advances and shared a small amount of load in the translational motion that retreats), wherein especially big there are about more tons of 500-2000 (to regard and produce for lifting load
All kinds of products of different specifications, and different with billet specification).Action cycle is shorter, and action in less than 1 minute is primary mostly, lifting
Action about only accounts for 1/6 or so (different and different with output according to base length, base weight) of a stepping period.It is each in a cycle
Load constant is constant, and load constant is repeated continuously by some cycles, and operating frequency is very high.No matter the steppings such as square billet or slab add
The load character of the hydraulic system of hot stove is all similar, is suitable for using hydraulic balance energy-saving device provided by the invention, energy saving effect
Fruit clearly, both had an economic benefit, can also emission reduction have social benefit.
By the explanation above to step heating-furnace Hydraulic Power Transmission System it is found that the characteristics of step heating-furnace is that lift platform is
Upper and lower whole operation, and steel billet is half way operation.In technical solution provided by the invention, lift platform rises first
It is by one group of accumulator system feed flow, accumulator thrust is transferred to thrust hydraulic cylinder, and just energy (or micro- overload) is pushed to contact fixation
Steel billet on rack.The accumulator group is closed at this time, while another group of accumulator system system starts feed flow, push lift platform and
Steel billet rises simultaneously, and the accumulator thrust also is transferred to thrust hydraulic cylinder, and just energy (or micro- overload) pushes lift platform and steel billet same
When rise to requirement height stop.This at two accumulator group function and valve member configuration be identical, be only pressure height
Difference is described below and is only illustrated with the connection of first group of equipment of lifting platform and effect, another group of lift platform and steel billet it is dynamic
It explains and is omitted.
Embodiment 1
As shown in Figure 1, device is transformed for a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation produced, it is one complete
Whole independent hydraulic balance system.It is using (the structure of large capacity welding high pressure gas narrow-necked earthen jar 1 of single large capacity welding high pressure gas narrow-necked earthen jar 1
Details are shown in Fig. 3), single large capacity welding high pressure gas narrow-necked earthen jar 1 connects smash valve group 2, reconnects one 3-1 of piston power accumulator, piston
One 3-1 of accumulator is connect with mounted in safe valve group thereon, and safe one oil return opening of valve group is connected with oil return pipeline T1.Safety valve
Group high pressure hydraulic fluid port is connected with one 4-1 of control valve group, is connected to the 5 piston accent of hydraulic cylinder controlled with position, pushes lifting platform
Frame rises.When lift platform declines, by the pressure of hydraulic cylinder 5 controlled with position and the dead weight of lift platform, high pressure oil
Again it pushes back in one 3-1 of piston power accumulator.
With should lift platform rise to contact be placed on the steel billet of fixed rack when, one 4-1 of control valve group close, same to time control
Two 4-2 of valve group processed is opened, and another two 3-2 of piston power accumulator with one 3-1 of piston power accumulator same configurations has turned on through another
Two 4-2 of control valve group, promoted to 5 feed flow of hydraulic cylinder that is controlled with position, lift platform pushed to rise simultaneously with steel billet.Decline
When also under pressure and lift platform with position control hydraulic cylinder 5 and steel billet dead weight collective effect, high pressure oil is pushed back again
In two 3-2 of piston power accumulator.
One 3-1 of piston power accumulator is connect with safe valve group, and safe one high pressure hydraulic fluid port of valve group connects with three 6-1 of control valve group
It connects, its high pressure accent connection high pressure line P1.High pressure line P1 passes through one 2-1 of high-pressure ball valve and the built height of original hydraulic system
Pressure pipeline P is connected.The oil return accent of three 6-1 of control valve group connects back to oil pipeline T1, and oil return pipeline T1 passes through two 2-2 of high-pressure ball valve
Connect with the built oil return pipeline T-phase of original hydraulic system.It is opened and closed by one 2-1 of high-pressure ball valve and two 2-2 of high-pressure ball valve, can be fast
The production of speed switching two systems, therefore each factory leader is not required to use again when certain factory first operation no problem to be seen again.
One 3-1 of piston power accumulator and two 3-2 of piston power accumulator is through safety valve and three 6-1 of control valve group, four 6-2 of control valve group
A mouths be connected, three 6-1 of control valve group, P mouths of four 6-2 of control valve group, T mouthfuls and respectively with pressure line P and oil return pipeline T-phase
Even.One 3-1 of piston power accumulator and two 3-2 of piston power accumulator is respectively by one 4-1 of control valve group, two 4-2 of control valve group to position
The hydraulic cylinder 5 for putting control leads to the hydraulic oil of different pressures, is promoted or declines lift platform, lift platform and steel billet, but control valve
Group one 4-1 and two 4-2 of control valve group in pressure oil operation, may be stored when equipment lifts to one 3-1 of piston power accumulator and piston
Error can be generated in two 3-2 oil supply and discharges of device, it is poor to be adjustably controlled valve group one, two opening and closing times, this when can also pass through piston accumulation of energy
One 3-1 of device and two 3-2 of piston power accumulator sends out signal and four 6-2 (3-position-3-ways of three 6-1 of automatic open close control valve group and control valve
Control valve group), to two 3-2 supply and discharge hydraulic oil of one 3-1 of piston power accumulator and piston power accumulator from pressure system, ensure that piston stores
Oil mass is in normal condition in two 3-2 of energy one 3-1 of device and piston power accumulator.
In order to which stepping furnace hydraulic balance system securely and reliably produces, special requirement is adapted to, is such as become in production blow-on and blowing out
During change, steel billet load is stepped up carrying entirely or full when to carry Zhu Bu Minus be zero less by zero, utilizes low capacity gas cylinder transition or can
When can have leakage, it is also desirable to timely tonifying Qi.Spy with high pressure small gas cylinder 1-1, respectively set at the both ends of high pressure small gas cylinder 1-1 one it is normally closed
High-pressure ball valve, it is each to connect two 3-2 of one 3-1 of piston power accumulator and piston power accumulator.High pressure small gas cylinder 1-1 can use 100 liters of capacity,
Pressure is 31.5Mpa, so as in time to the quick tonifying Qi of two accumulators.It, also can be as gas narrow-necked earthen jar when working well such as later system
A part, this can more reduce pressure difference ratio or remove the structure in new design.
The present invention connects proportioning valve 7 using the hydraulic cylinder 5 controlled with position, and available standards hydraulic cylinder changes two oil pocket areas
Become and adapt to pressing operation, it can provide continuous piston position signal, be both power cylinder and master cylinder, have triple work(
Energy.The proportioning valve 7 of control can use 3-position-3-way proportioning valve or be controlled respectively with two bi-bit bi-pass proportioning valves, also can be used
The Numeric hydraulic cylinder developed recently, excellent performance and advantage there are many it, pipeline to simplify, and oily required precision reduces, control
Steel billet is gently lifted to put down gently and is more advantageous to extending step heating-furnace service life etc. after precision processed improves, this is the trend of development in the future.
Hydraulic cylinder 5 with position control must add in step heating-furnace center line appropriate location to be built basis and is connected with crossbeam.Power cylinder
It is placed on step heating-furnace center line and has many advantages, avoid mechanically and hydraulically bisynchronous interference, also simplify complexity
Hydraulic synchro and the increase pressure loss.Blank is all supplied by continuous casting billet at present, and cut lengths is accurately fixed, therefore unbalance loading is not
Greatly, production requirement is fully met by simple mechanical synchronization.
One autonomous system of self-contained of the present invention, has pressure oil pipe P1 and oil return guard system T2, can not there be control oil pipe L1, it
Directly it is connected on the built control pipeline L of original hydraulic system.
Two 3-2 and two one 3-1 of piston power accumulator, piston power accumulator large capacity welding high pressure gas narrow-necked earthen jars 1 may be used such as Fig. 3
Shown composition structure.Two large capacity welding high pressure gas narrow-necked earthen jar 1 and two 3-2 of one 3-1 of piston power accumulator and piston power accumulator, are adopted
It is connected with the piston power accumulator controlled with piston position, between them with pipeline, valve group and filter device 13, (this is also figure
1st, institute's target smash valve group 2 in Fig. 2), combination forms energy accumulator station.Vertical dress high-pressure welding air tank 1 and piston power accumulator 3 are stood on
On public base 12, filter device 13 is additionally provided with high pressure valve and opens and closes control pollutant outlet at this.
Two 3-2 and two one 3-1 of piston power accumulator, piston power accumulator large capacity welding high pressure gas narrow-necked earthen jars 1 can also use such as
Structure shown in Fig. 4, it includes two angle mount high-pressure welding air tanks 1 with capacity pipe with small pipe diameter and the accumulation of energy with piston position control
Device 3 is combined as energy accumulator station, and large capacity welding high pressure gas narrow-necked earthen jar 1 is inclined in using folded stand on pedestal 14, two angle mount high pressures welding
Gas narrow-necked earthen jar 1-2 is simultaneously erected on band diagonal brace bearing 15.Piston power accumulator 3 simultaneously with piston position control is also mounted at the band diagonal brace
On bearing 15, it is connected between angle mount high-pressure welding air tank 1-2 and piston power accumulator 3 by pipeline, valve group and filter device 13
It connects.By two angle mount high-pressure welding air tanks 1 on pedestal 14, the other end is placed on diagonal brace bearing 15 for it, is filtered wherein at this
Device 13 separately has valve to control pollutant outlet.
The energy accumulator station of Fig. 3 and Fig. 4, function is identical with capacity, be only narrow-necked earthen jar through thickness length, the difference of expense, by designing
It is selected with user, contributes to the place of height-limited system, all control in height within 4 meters, it can as highly having certain limitations
With the tilting certain angle of Fig. 4 high-pressure welding air tanks, if height is unrestricted such as 6.5 meters, then full-vertical side as shown in Figure 3 can be used
Dot can be selected in case, such gas narrow-necked earthen jar internal diameter, and investment is also slightly saved a little, also be can be used certainly made of now widely used multiple spinning
Small gas cylinder, shortcoming connection is complicated, easy gas leakage, it is proposed that with 3 knot Ju of figure.
Embodiment 2
As shown in Fig. 2, device is transformed for the step heating-furnace double-cylinder hydraulic balanced energy conservation that another kind has produced, it includes it
Using two hydraulic cylinders of original system, but former piston cylinder is transformed into plunger case use, original is connected on to the oil inlet pipe of piston rod
It unloads, and is blocked with valve, to restore original system when is loaded on.Former oil inlet dress air cleaner connects top petrol tank, with
Cylinder intracavitary is kept to have oil always, extends seal life.It is connected by triple valve with stoste cylinder pressure, makes two systems that can lead at any time
Disconnected conversion, other all devices, connection mode and function are all as the scheme of Fig. 1.Though it is for setting up the liquid of a small flow
Master cylinder is pressed, controls position and the speed of two hydraulic cylinder of original system, but to be bothered much during the switching of two systems, embodiment 1 does not just have to
Two power cylinder of original system separately sets one and provides power, piston position signal and the big hydraulic cylinder of direction speed control, two systems and cuts
It changes just much convenient and simple.
System disclosed in the present embodiment includes two large capacities and welds high pressure gas narrow-necked earthen jar 1, two large capacity welding high pressure gas narrow-necked earthen jars 1
It is connected respectively via respective smash valve group 1 with one 3-1 of piston power accumulator and two 3-2 of piston power accumulator, piston power accumulator
One 3-1 and two 3-2 of piston power accumulator is respectively connect with mounted in safe valve group thereon, the high pressure hydraulic fluid port difference of two safe valve groups
It is connected with respective control valve group 54, two groups of control valve groups 54 reconnect the triple valve 8 of the new clothes of original hydraulic system, triple valve
8 are connected to again on the stoste cylinder pressure 9 in original hydraulic system, during rising, lift platform are promoted by one 3-1 of piston power accumulator, by piston
Two 3-2 of accumulator promotes lift platform and steel billet rises；During decline, in the pressure and lifting platform of the hydraulic cylinder 10 controlled with position
Under frame and steel billet dead weight collective effect, high pressure oil is pushed back again in two 3-2 of one 3-1 of piston power accumulator and piston power accumulator.
The present invention, which removes, uses traditional proportional valve control system, it is further recommended that using Numeric hydraulic cylinder control device, makes system
It is more simplified reliable, it more realizes that light lift is put down gently, extends step heating-furnace service life.Underbalance may be used in the present invention, can also
Using overbalance, but to be chosen during design, it is related with hydraulic cylinder Deng Jie Ju to rear step control system.It is proposed that using excessively flat
Weighing apparatus scheme allows balanced load slightly to make micro- power that can act preferably, be conducive to control operation, also more energy efficient.To using overbalance
Plunger piston fluid pressure cylinder can be used for control, simple in structure, low cost, but take over complexity is installed.It is proposed that using having concurrently
Power, position and the three-in-one piston hydraulic cylinder of speed are positioned over before step heating-furnace on the center line of line direction, separately lay foundation
It is connected with lift platform.
Claims (8)
1. a kind of step heating-furnace hydro-cushion reducing energy consumption device produced, which is characterized in that welded including two large capacities
High pressure gas narrow-necked earthen jar (1) is connect, two large capacity welding high pressure gas narrow-necked earthen jars (1) store respectively via respective smash valve group one (2) and piston
Can device one (3-1) and piston power accumulator two (3-2) be connected, piston power accumulator one (3-1) and piston power accumulator two (3-2) respectively with
Mounted in safe valve group connection thereon, the oil return opening of two safe valve groups is connected with oil return pipeline (T1), two safe valve groups
High pressure hydraulic fluid port be connected respectively with control valve group one (4-1) and control valve group two (4-2), control valve group one (4-1) and control valve
Two (4-2) of group are then connected to the piston accent of hydraulic cylinder (5) controlled with position, first by piston power accumulator one (3-1) through control
Valve group one (4-1) pushes lift platform to rise, when lift platform rises to contact to hydraulic cylinder (5) feed flow controlled with position
When being placed on the steel billet of fixed rack, control valve group one (4-1) is closed, while control valve group two (4-2) is opened, piston power accumulator two
(3-2) to hydraulic cylinder (5) feed flow controlled with position, pushes lift platform to rise simultaneously with steel billet through control valve group two (4-2)；
When lift platform declines, by the pressure of hydraulic cylinder (5) controlled with position and the dead weight of lift platform and steel billet, high pressure oil
It pushes back again respectively in piston power accumulator one (3-1) and piston power accumulator two (3-2).
2. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as described in claim 1, feature
It is：One high pressure hydraulic fluid port of the safe valve group connected with piston power accumulator one (3-1) is connect with control valve group three (6-1), control
The high pressure accent connection high pressure line (P1) of valve group three (6-1) processed, high pressure line (P1) pass through high-pressure ball valve two (2-1) and stoste
The built high pressure line (P) of pressure system is connected, and the oil return accent of control valve group three (6-1) connects back to oil pipeline (T1), oil return pipe
Line (T1) is connected by high-pressure ball valve three (2-2) with the built oil return pipeline (T) of original hydraulic system；
One high pressure hydraulic fluid port of the safe valve group connected with piston power accumulator two (3-2) is connect with control valve group four (6-2), control
The high pressure accent connection high pressure line (P1) of valve group four (6-2), the oil return accent of control valve group four (6-2) connect back to oil pipeline
(T1)。
3. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as claimed in claim 2, feature
It is：The piston power accumulator one (3-1) and piston power accumulator two (3-2) pass through the control valve group one (4-1), control valve group
Two (4-2) lead to the hydraulic oil of different pressures to the hydraulic cylinder (5) controlled with position respectively, are promoted or decline lift platform, lifting
Rack and steel billet；If control valve group one (4-1) and control valve group two (4-2) are stored when equipment lifts in pressure oil conveying to piston
Different pressures flow error can be generated in device one (3-1) and piston power accumulator two (3-2) oil supply and discharge, pass through piston power accumulator one
(3-1) and piston power accumulator two (3-2) send out signal and control valve group three (6-1) and the control valve group four described in automatic open close
(6-2), to piston power accumulator one (3-1) and piston power accumulator two from the high pressure line (P1) and the oil return pipeline (T1)
(3-2) supply and discharge hydraulic oil.
4. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as described in claim 1, feature
It is, further includes high pressure small gas cylinder (1-1), a normally closed high-pressure ball valve is respectively set at the both ends of high pressure small gas cylinder (1-1), it is each to connect
The piston power accumulator one (3-1) and the piston power accumulator two (3-2).
5. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as described in claim 1, feature
It is：The band position control hydraulic cylinder (5) is reequiped with standard hydraulic cylinder, can provide continuous piston position signal, be both power
Cylinder, and be master cylinder, there are triple functions, the band position control hydraulic cylinder (5) connects proportioning valve (7), proportioning valve (7) connection
Built control pipeline (L), the high pressure line (P1) and the oil return pipeline (T1) of original hydraulic system, proportioning valve (7) is with three
Position threeway proportioning valve is controlled respectively with two bi-bit bi-pass proportioning valves；The band position control hydraulic cylinder (5) uses number
Word hydraulic cylinder.
6. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as described in claim 1, feature
It is；The large capacity welding high pressure gas narrow-necked earthen jar (1) includes two high-pressure welding air tanks (1-2), vertical to be loaded on public base (12)
On；The piston power accumulator one (3-1) or the piston power accumulator two (3-2) are using the piston power accumulator controlled with piston position
(3), high-pressure welding air tank (1-2) is connected with piston power accumulator (3) by pipeline, valve group and filter device (13), wherein,
Filter device (13) and separately there is valve to be connected with the external world, convenient for pollutant discharge narrow-necked earthen jar outside.
7. a kind of step heating-furnace single-cylinder hydraulic balanced energy conservation transformation device produced as described in claim 1, feature
It is：The piston power accumulator one (3-1) or the piston power accumulator two (3-2) are all stored using the piston controlled with piston position
It can device (3)；The large capacity welding high pressure gas narrow-necked earthen jar (1) includes two oblique closed assembly high-pressure welding air tanks (1-2), with band piston position
Folded stand of the piston power accumulator (3) of control is inclined on pedestal (14), and two high-pressure welding air tanks (1-2) are simultaneously erected at band diagonal brace branch
On seat (15), while the piston power accumulator (3) with piston position control is also mounted on the band diagonal brace bearing (15), angle mount high pressure
Pass through pipeline, valve group and filter device (13) between welding gas narrow-necked earthen jar (1-2) and the piston power accumulator (3) controlled with piston position
It is connected, wherein filter device separately has valve to be connected with the external world again, is discharged outside narrow-necked earthen jar convenient for pollutant.
8. a kind of step heating-furnace hydro-cushion reducing energy consumption device produced, which is characterized in that welded including two large capacities
High pressure gas narrow-necked earthen jar (1) is connect, two large capacity welding high pressure gas narrow-necked earthen jars (1) store respectively via respective smash valve group one (2) and piston
Can device one (3-1) and piston power accumulator two (3-2) be connected, piston power accumulator one (3-1) and piston power accumulator two (3-2) respectively with
Mounted in safe valve group connection thereon, the high pressure hydraulic fluid port of two safe valve groups is connected respectively with respective control valve group five (4), and two
Group control valve group five (4) reconnects the triple valve (8) newly installed of original hydraulic system, and triple valve (8) is connected to original hydraulic system again
In stoste cylinder pressure (9) on, during rising, lift platform is promoted by piston power accumulator one (3-1), by piston power accumulator two (3-2)
It promotes lift platform and steel billet rises；During decline, in pressure and lift platform and the steel billet of the hydraulic cylinder (10) controlled with position
Under collective effect of conducting oneself with dignity, high pressure oil is pushed back again in piston power accumulator one (3-1) and piston power accumulator two (3-2).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854545A (en) * | 2018-12-27 | 2019-06-07 | 何学才 | The step heating-furnace hydraulic drive dedicated hydraulic balance energy accumulator station group produced |
| CN111350710A (en) * | 2020-04-21 | 2020-06-30 | 河北凯昌科技有限公司 | Hydraulic potential energy recovery system of stepping lifting mechanism |
| CN112128173A (en) * | 2019-06-25 | 2020-12-25 | 辽宁宇航工业技术有限公司 | Hydraulic driving energy-saving system of plate strip stepping heating furnace |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025055A (en) * | 1974-07-30 | 1977-05-24 | Strolenberg Willem Josef Georg | Apparatus for use in raising or lowering a load in a condition of relative motion |
| EP0442860A1 (en) * | 1990-01-16 | 1991-08-21 | W. Everaert Pvba | Machine for destroying concrete surfaces |
| JPH06287631A (en) * | 1993-03-31 | 1994-10-11 | Chugai Ro Co Ltd | Driving method of hydraulic cylinder driving type walking beam |
| CN101080292A (en) * | 2004-10-15 | 2007-11-28 | 博世力士乐股份有限公司 | Hydraulically actuated casting unit |
| CN101278130A (en) * | 2005-09-30 | 2008-10-01 | 卡特彼勒公司 | Hydraulic system for recovering potential energy |
| CN201507500U (en) * | 2009-06-15 | 2010-06-16 | 何学才 | Stepping type heating furnace hydraulic balance energy-saving device |
| CN102322453A (en) * | 2011-09-13 | 2012-01-18 | 何学才 | Produced hydraulic balance energy-saving modification device of walking beam furnace |
| CN203214494U (en) * | 2013-03-15 | 2013-09-25 | 宝钢工业炉工程技术有限公司 | Lifting equipment potential energy recycling hydraulic control system under unsteady load |
| CN104047935A (en) * | 2013-03-15 | 2014-09-17 | 宝钢工业炉工程技术有限公司 | Potential energy recovery system of lifting equipment and use method under non-stable load condition |
| CN105697475A (en) * | 2016-03-16 | 2016-06-22 | 太原理工大学 | Potential energy recycling system and method of higher-position extractor |
| CN208669718U (en) * | 2018-01-16 | 2019-03-29 | 何学才 | The step heating-furnace hydro-cushion reducing energy consumption device produced |
-
2018
- 2018-01-16 CN CN201810042364.4A patent/CN108266412A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025055A (en) * | 1974-07-30 | 1977-05-24 | Strolenberg Willem Josef Georg | Apparatus for use in raising or lowering a load in a condition of relative motion |
| EP0442860A1 (en) * | 1990-01-16 | 1991-08-21 | W. Everaert Pvba | Machine for destroying concrete surfaces |
| JPH06287631A (en) * | 1993-03-31 | 1994-10-11 | Chugai Ro Co Ltd | Driving method of hydraulic cylinder driving type walking beam |
| CN101080292A (en) * | 2004-10-15 | 2007-11-28 | 博世力士乐股份有限公司 | Hydraulically actuated casting unit |
| CN101278130A (en) * | 2005-09-30 | 2008-10-01 | 卡特彼勒公司 | Hydraulic system for recovering potential energy |
| CN201507500U (en) * | 2009-06-15 | 2010-06-16 | 何学才 | Stepping type heating furnace hydraulic balance energy-saving device |
| CN102322453A (en) * | 2011-09-13 | 2012-01-18 | 何学才 | Produced hydraulic balance energy-saving modification device of walking beam furnace |
| CN203214494U (en) * | 2013-03-15 | 2013-09-25 | 宝钢工业炉工程技术有限公司 | Lifting equipment potential energy recycling hydraulic control system under unsteady load |
| CN104047935A (en) * | 2013-03-15 | 2014-09-17 | 宝钢工业炉工程技术有限公司 | Potential energy recovery system of lifting equipment and use method under non-stable load condition |
| CN105697475A (en) * | 2016-03-16 | 2016-06-22 | 太原理工大学 | Potential energy recycling system and method of higher-position extractor |
| CN208669718U (en) * | 2018-01-16 | 2019-03-29 | 何学才 | The step heating-furnace hydro-cushion reducing energy consumption device produced |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854545A (en) * | 2018-12-27 | 2019-06-07 | 何学才 | The step heating-furnace hydraulic drive dedicated hydraulic balance energy accumulator station group produced |
| CN112128173A (en) * | 2019-06-25 | 2020-12-25 | 辽宁宇航工业技术有限公司 | Hydraulic driving energy-saving system of plate strip stepping heating furnace |
| CN112128173B (en) * | 2019-06-25 | 2024-04-23 | 辽宁宇航工业技术有限公司 | Hydraulic drive energy-saving system of plate and strip stepping heating furnace |
| CN111350710A (en) * | 2020-04-21 | 2020-06-30 | 河北凯昌科技有限公司 | Hydraulic potential energy recovery system of stepping lifting mechanism |
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