CN102322452A - Hydraulic balanced energy-saving device for stepped heating furnace - Google Patents
Hydraulic balanced energy-saving device for stepped heating furnace Download PDFInfo
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- CN102322452A CN102322452A CN201110269391A CN201110269391A CN102322452A CN 102322452 A CN102322452 A CN 102322452A CN 201110269391 A CN201110269391 A CN 201110269391A CN 201110269391 A CN201110269391 A CN 201110269391A CN 102322452 A CN102322452 A CN 102322452A
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Abstract
The invention provides a hydraulic balanced energy-saving device for a stepped heating furnace, which comprises a hydraulic pump station, wherein the hydraulic pump station absorbs oil from an oil tank, is connected to a pressure pipeline through an overflow valve and a high-pressure fine filter, is then connected to various valves and is finally connected to a pusher cylinder, a translation cylinder and a lifting cylinder. Energy accumulator station oil provides a lifting load of a supply plunger cylinder balancing stand and a lifting load of a piston cylinder balancing steel billet. The hydraulic balanced energy-saving device adopts a multifunctional stainless steel oil tank, a quantitative and varied combined pump station, a complete and reliable high-level oil tank, a combined plunger hydraulic cylinder with a compact structure, a high speed ratio piston hydraulic cylinder with a displacement sensor and the energy accumulator station comprising a welding gas crock and a mixed energy accumulator, wherein a plurality of hydraulic cylinders share one proportional valve. The hydraulic balanced energy-saving device has the advantages of capability of balancing about 90 percent of total load, energy saving, capital investment saving, favorable economic investment, high control level, compact equipment arrangement, small occupied area and high cost performance of the piston energy accumulator.
Description
Technical field
The present invention relates to a kind of novel walking beam furnace hydro-cushion energy saving device, be used for hydraulic transmission, belong to oven hydro-cushion, energy saving device technical field.
Background technique
Iron and steel enterprise is an energy consumption rich and influential family, and the energy consumption of walking beam furnace mainly is the fuel consumption of heating steel billet, and all the other water, electricity etc. are the microcephalies by comparison, get the brush-off.The energy consumption of walking beam furnace hydraulic system drive motor; Though can not compare with oven fuel energy consumption, in mill, its ranking surely belongs to the eldest child in the subsidiary engine capacity; As with rod, the wire rod oven is example; Adopt the hydro-cushion energy saving device, annual single-unit is economized electric energy and is consumed about 330,000 kilowatt hours, must pay attention to its reducing energy consumption.But because the production of former walking beam furnace conventional construction is reliable, in walking beam furnace, all do not use hydraulic balance system energy-conservation both at home and abroad at present, at that time also because of not having suitable device, thereby old traditional mode of production is failed breakthrough.
Along with world energy sources is nervous; Environmental pollution is serious, and natural disaster takes place frequently, and notices that or else energy-saving and emission-reduction will threaten human survival; Energy-conservation is again the state basic policy of China; Situation need be many with piston accumulator power-saving technology in a large amount of hydraulic systems, especially to jumbo piston accumulator it improved on the original basis again and improve a step, promote the use of with promotion piston accumulator power-saving technology.
The load character of walking beam furnace: it is mainly lifting load, in a stepping period, accounts for 90% of total load, and wherein lifting load is especially big, and action time is very short, is about 1/6 of a stepping period.Each load constant is constant in the one-period, and load constant repeats by some cycles unchangeably, and periodically operating frequency is very high repeatedly, per hour has approximately 50 times.No matter the load character of the hydraulic system of walking beam furnace such as square billet or slab structure is all similar.Be that optimum adopts the hydro-cushion energy saving device, the high geopotential energy of heavy duty is used, promote heavy duty again, reach not only energy-conservation but also protect the economic benefit bumper harvests.
Summary of the invention
The purpose of this invention is to provide a kind of hydro-cushion energy saving device that can play energy-saving effect.
In order to achieve the above object, technological scheme of the present invention has provided a kind of walking beam furnace hydro-cushion energy saving device, comprises the pumping plant that is become by quantitative plunger pump device and variable piston pump-unit mutual group; It is characterized in that: pumping plant connects fuel tank, pumping plant from the fuel tank oil suction after relief valve conflux to the high pressure fine filter, the high pressure fine filter be divided into three the tunnel after safety valve is connected; One the road is connected to the accumulator station, and one the tunnel is connected to each oil hydraulic cylinder through high pressure line, and one the tunnel receives the oil return pipeline; The steel-pushing machine oil hydraulic cylinder connects pressure line and oil return pipeline through solenoid directional control valve, and the translation oil hydraulic cylinder links to each other with the 6th Proportional valve through first solenoid directional control valve, and the 6th Proportional valve connects pressure line, oil return pipeline and draining pipeline; The rod chamber pipeline of the piston hydraulic cylinder of large speed ratio band displacement transducer connects the 3rd solenoid directional control valve; The 3rd solenoid directional control valve has two pipelines, and a pipeline connects second solenoid directional control valve and the 6th Proportional valve successively, and root one pipeline connects the 4th solenoid directional control valve in addition; The pipeline of the piston cavity of the piston hydraulic cylinder of large speed ratio band displacement transducer connects the 4th solenoid directional control valve; One end of the 4th solenoid directional control valve connects pressure line, and the other end connects top petrol tank, and top petrol tank is provided with spill pipe; Be provided with bypass oil discharge pipe and repairing pipe in the bottom of top petrol tank; Top at top petrol tank is provided with air-strainer, and the accent pipeline of plunger piston fluid pressure cylinder connects the 5th solenoid directional control valve, and an interface of the 5th solenoid directional control valve connects first one-way valve and second one-way valve respectively; In first one-way valve and second one-way valve any one be connected to the high pressure fine filter after, before another is connected to the high pressure fine filter.
Preferably; Said fuel tank comprises the first stainless steel casing, and vane pump or gear pump connect heater and cooler successively, is provided with two-position two-way solenoid valve at the influent side of cooler; Before two-position two-way solenoid valve, be provided with water filter, cooler is connected with the first stainless steel casing again after connecting filter.
Preferably; Said fuel tank comprises second stainless steel fuel tank, in second stainless steel fuel tank, is provided with convoluted return tube, is provided with permanent magnet in the bottom of return tube; Establish except that indulging in serfing the Net on the top of return tube; Be provided with the large size filter screen of similar dividing plate shape at second stainless steel fuel tank middle part, the filter screen below is provided with vaporizer and condenser, is provided with filter screen at the inlet port of second stainless steel fuel tank.
Preferably, said pumping plant is made up of variable displacement pump entirely, or is made up of jointly quantitative plunger pump and Variable plunger pump.
Preferably, said plunger piston fluid pressure cylinder is arranged in the walking beam furnace both sides, and said piston hydraulic cylinder is arranged in the walking beam furnace middle part.
Preferably, said plunger piston fluid pressure cylinder and said piston hydraulic cylinder are connected on the base, are arranged in the centre of walking beam furnace.
Preferably, said accumulator station by at least one spinning gas cylinder and piston accumulator through the shared support assembling.
Preferably; Said accumulator station comprises at least one big capacity welding gas narrow-necked earthen jar, on big capacity welding gas narrow-necked earthen jar, is provided with base, and base is fixed on the ground with stone bolt; The bottom and the top of big capacity welding gas narrow-necked earthen jar have been respectively equipped with sewage disposal facility and electromagnetic separation device; Magnetic pollutant after the filtration is discharged from drain pipe, and the nitrogen that comes out from welding gas narrow-necked earthen jar is through the electromagnetic separation device, is transported to a kind of gas, oil is non-in hybrid type piston accumulator.
Preferably; The piston hydraulic cylinder of said large speed ratio band displacement transducer comprises piston/cylinder, all is provided with cushion pad in the end, front and back of piston/cylinder, and the first garden nut and the second garden nut are located at respectively on the end, front and back of piston/cylinder; Be screwed with the afterbody end cap at the piston/cylinder afterbody; The afterbody end cap is locking through the garden nut screwing clamping, on the afterbody end cap, is provided with magnetostrictive displacement sensor and biasing balance staff hole, and anterior cylinder seat is enclosed within the head of piston/cylinder with loose fit; Sealing flap, anterior cylinder seat and the first garden nut connect as one through bolt, nut and packing ring; Be provided with piston rod and piston assembly in the piston/cylinder, be fixed with position magnet at the afterbody of piston/cylinder, and have the induction rod of magnetostrictive displacement sensor therefrom to pass through.
Advantage of the present invention is: 1. the lifting load that can balance all (account for total load 90%); 2. obvious energy conservation, single power consumption about 330,000 degree that can economize on electricity every year; 3 use fixed, variable combination pumping plant device, reduce investment outlay with energy-conservation, reduce amount of maintenance; 4. adopt the multi-functional fuel tank of stainless steel, will filter, cool off and be integrated in one, reduce investment outlay and energy-conservation, save space; 5. adopt the piston hydraulic cylinder compact structure of plunger piston fluid pressure cylinder and large speed ratio band displacement transducer, pipe-line system is simple, and the Sandwich plate valve that can adopt very is contained on the cylinder body; 6. plunger piston fluid pressure cylinder has guaranteed oily cleanliness through one-way valve control during its turnover oil; 7. the shared Proportional valve of the lifting hydraulic cylinder of the piston hydraulic cylinder of translation oil hydraulic cylinder and plunger piston fluid pressure cylinder and large speed ratio band displacement transducer is reduced investment outlay.
Description of drawings
Fig. 1 is a kind of walking beam furnace hydro-cushion energy saving device schematic representation provided by the invention;
Fig. 2 is a kind of accumulator station schematic representation of being made up of welding gas narrow-necked earthen jar and non-separator piston accumulator;
Fig. 3 is a kind of piston hydraulic cylinder schematic representation of large speed ratio large speed ratio band displacement transducer;
Fig. 4 is the load and the time diagram of unified each the oil hydraulic cylinder effect of stepping period of hydraulic pressure system;
Fig. 5 is the Oiltank structure schematic representation.
Embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 1, for a kind of walking beam furnace hydro-cushion energy saving device provided by the invention, comprise pumping plant 1, it can be present widely used entire variable pump liquid feed means.But in order to reduce investment outlay with energy-conservation, the present embodiment employing is fixed, variable displacement pump combination liquid feed means, is organized altogether by quantitative plunger pump device 1-1 and variable piston pump-unit 1-2.Quantitative plunger pump device 1-1 supplies with hydraulic system and accumulator hydraulic oil for a long time, and variable piston pump-unit 1-2 needs variable to supply with hydraulic oil by setting.Quantitative plunger pump device 1-1 and variable piston pump-unit 1-2 are after the fuel tank oil suction; Be flowed to high pressure fine filter 14 through relief valve 3; One the tunnel is divided into three the tunnel behind safety valve 12 then; One the road to accumulator station 11, and another road connects each oil hydraulic cylinder again through high pressure line P, and last road is connected to oil return pipeline T.Steel-pushing machine oil hydraulic cylinder 6 connects pressure line P and oil return pipeline T through solenoid directional control valve 5.Translation oil hydraulic cylinder 7 links to each other with the 6th Proportional valve 5-6 through the first solenoid directional control valve 5-1 again, and the 6th Proportional valve 5-6 connects pressure line P, oil return pipeline T and draining pipeline S.
Fuel tank can be as shown in Figure 1; Comprise second stainless steel fuel tank 4, in second stainless steel fuel tank 4, be provided with convoluted return tube 4-5, be provided with permanent magnet 4-4 in the bottom of return tube 4-5; Establish except that indulging in serfing the Net on the top of return tube 4-5; Be provided with the large size filter screen 4-6 of similar dividing plate shape at second stainless steel fuel tank, 4 middle parts, filter screen 4-6 below is provided with vaporizer 4-3 and condenser, is provided with filter screen 4-1 at the inlet port of second stainless steel fuel tank 4.
Its structure also can be as shown in Figure 5; Comprise the first stainless steel casing 3; Vane pump 3-5 or gear pump connect heater 3-7 and cooler 3-6 successively; Influent side at cooler 3-6 is provided with two-position two-way solenoid valve 3-4, before two-position two-way solenoid valve 3-4, is provided with water filter 3-2, and cooler 3-6 is connected with the first stainless steel casing 3 again after connecting filter 3-3.
At least one plunger piston fluid pressure cylinder 9 (because of no standard plunger piston oil hydraulic cylinder optional; Also can select for use the standard piston oil hydraulic cylinder to use, though plunger piston fluid pressure cylinder processing is simple, cost is low; But nonstandard design of single-piece and processing are on the contrary not as good as selecting for use the standard piston oil hydraulic cylinder of batch process more to close mark.Oil inlet and outlet at the piston rod place does not connect pressure line, and the installing air filter in generation) and the piston hydraulic cylinder 8 of large speed ratio band displacement transducer; Can be arranged in the both sides of oven by establish two plunger piston fluid pressure cylinders 9 in the past; Specially be responsible for driving the up-down of stand, the piston hydraulic cylinder 8 that large speed ratio band displacement transducer is set in the centre of oven more specially is responsible for driving steel billet up-downs, automatic control velocity and driving two oil hydraulic cylinders and is resetted, as with two plunger cases 9; This just must consider two cylinder stationary problems; And synchronous valve must be set, and walking beam furnace all is provided with mechanical synchronization mechanism, and such driving mechanism is provided with two cover synchronous locating devices; Always cause certain additional drag, more this can not only consume power but also increase investment.Present embodiment fuses the piston hydraulic cylinder 8 of single plunger piston fluid pressure cylinder 9 and large speed ratio band displacement transducer; Be arranged in the center of oven; Make plunger piston fluid pressure cylinder 9 specially be responsible for driving the up-down of stand, the piston hydraulic cylinder 8 of large speed ratio large speed ratio band displacement transducer specially is responsible for driving steel billet up-down, automatic control velocity and driving two oil hydraulic cylinders and is resetted.Modern piston hydraulic cylinder 8 with plunger piston fluid pressure cylinder 9 and large speed ratio band displacement transducer is arranged in the oven central position, just can save the synchronous valve of two cylinders, and you use continuous casting billet production at the modern overwhelming majority; Cut lengths is more accurate; Blank unbalance loading in stove is less, and roller positioning and guiding distance is very big, and guiding accuracy is higher; Place stove in the heart the piston hydraulic cylinder 8 of plunger piston fluid pressure cylinder 9 and large speed ratio band displacement transducer, so not only energy-conservation but also the favourable nothing of reducing investment outlay is worn-out.
The rod chamber pipeline of the piston hydraulic cylinder 8 of large speed ratio band displacement transducer connects the 3rd solenoid directional control valve 5-3; This valve has two pipelines; A pipeline connects the second solenoid directional control valve 5-2; Connect the 6th Proportional valve 5-6 again, another root pipeline of the 3rd solenoid directional control valve 5-3 connects the 4th solenoid directional control valve 5-4.The piston hydraulic cylinder of large speed ratio band displacement transducer, the pipeline of its piston cavity connect the 4th solenoid directional control valve 5-4, and the end of the 4th solenoid directional control valve 5-4 connects pressure line P; The other end connects top petrol tank 10, and this case is provided with spill pipe 10-1, when pasta in the top petrol tank 10 surpasses the pasta of a certain setting; Automatic overflow returns multifunctional stainless steel fuel tank 4, at the bottom of this case, also is provided with bypass oil discharge pipe, and this case also is provided with the repairing pipe; When fuel level in tank was lower than certain value, level meter sent sound and optic signal, so that artificial repairing; This upper box part also is provided with air-strainer, and gas volume also changes in the case, and air is the turnover top petrol tank constantly; Thereby must filter the air that gets into fuel tank, and guarantee the cleanliness of oil, also can adopt sealed reservoir in case of necessity.Plunger piston fluid pressure cylinder 9 its accent pipelines connect the 5th solenoid directional control valve 5-5, and the interface of the 5th solenoid directional control valve 5-5 connects first one-way valve 13 and the second one-way valve 13-1 respectively, after one of them of first one-way valve 13 and the second one-way valve 13-1 is connected to high pressure fine filter 14; Before another is connected to high pressure fine filter 14; When promoting stand, supply be the hydraulic oil of the cleaning after high pressure fine filter 14 filters, the oil that resets and discharge when plunger piston fluid pressure cylinder 9; Locate before getting back to high pressure fine filter 14; So that after high pressure fine filter 14 filters, the reinfusate pressing system is so that guarantee the cleanliness of hydraulic system oil.
The present invention adopts fixed, variable displacement pump device; Average 60% oil mass that one-period need be used is supplied with by metering pump; Pump and motor are under the optimum efficiency turn round, during the large and small changes in flow rate of other required oil, can go to regulate through another variable displacement pump and accumulator; Both reduced investment outlay like this, energy-conservation again.Specific efficiency is much lower mutually with other transmission in hydraulic transmission, and its major part all is converted into heat, be converted in the raising of oil temperature to have gone, thereby transmission efficiency and exercise performance in order to bring into play system.It is very important making oil temperature keep constant optimum temperature state, thereby principal contradiction is really to lack each link to make oily temperature rise as far as possible, takes cooling measure efficiently; An at present ad hoc cover automatic cycle filtration, cooling or heating system, main purpose be in order to lower the temperature, to filter, but through the flow resistance of pump, pipeline and some equipment; Generate many heats again, these all cool off through water cooler, and water temperature receives the influence of season and diurnal temperature again; Especially summer, coolant water temperature was too high, and constituent does not have the device of regulating water-quantity again, can not keep the optimum oil temperature; Influence the hydraulic system transmission performance, the present invention is employed in and establishes multi-filtering in the fuel tank, adopts similar air-condition principle again; Directly in oil, adopt the frequency conversion temperature adjustment, make the hydraulic oil constant optimum temperature value fuel feeding that remains on not affected by environment, suitably choosing is a little bigger for volume of fuel tank simultaneously; Set up radiating fin at the fuel tank suitable position again, so not only investment-saving but also energy-conservation.
As shown in Figure 2, accumulator station 11 comprises high pressure welding gas narrow-necked earthen jar 11-1, and two ends are welded with dome head than the major-diameter thick-wall seamless steel pipe by one for it, and simple in structure, easy to make, the capacity regulating configuration easily.This narrow-necked earthen jar bottom is provided with drain pipe 11-2, connects a plurality of gas narrow-necked earthen jars on this narrow-necked earthen jar top as required through pipeline, and is provided with the gas safety valve; This narrow-necked earthen jar top connects magnetic filter 11-3 through pipeline; The right side of this magnetic filter 11-3 connects drain pipe 11-4, and the magnetic impurity in the magnetic filter 11-3 filter nitrogen can blow brush impurity through pressurized gas after a period of time; Discharge outside the narrow-necked earthen jar from the drain pipe 11-4 on this magnetic filter 11-3 right side; The non-separator piston accumulator of another termination of magnetic filter 11-3 11-5, non-separator piston accumulator 11-5 are contained on the welding gas narrow-necked earthen jar base, and enclose to lean against and weld on the gas narrow-necked earthen jar; And welding gas narrow-necked earthen jar has base to be installed on the basic brick; Non-separator piston accumulator 11-5 bottom is that high pressure oil is imported and exported, and meets pressure line P, and high pressure welding gas narrow-necked earthen jar 11-1 and non-separator piston accumulator 11-5 are provided with shared control valve member and dial plate.
The present invention the accumulator station that will use; Also optional at present more widely used be the very ripe gentle narrow-necked earthen jar of piston accumulator both at home and abroad; Multiple constructed products is also arranged both at home and abroad; Can be with supplying design; Applying unit is selected for use; But the transmission of walking beam furnace load is bigger; The hydro-cushion pumping plant that matches is also bigger, controls with being convenient to for energy-conservation, does not make the energy storage pressure fluctuation too big; Select for use pumping plant pressure reduction less than 0.1 as far as possible; Just need more than 20 by domestic gas cylinder generally commonly used like this, like walking beam furnace load when bigger, like the slab walking beam furnace; Then need more small gas cylinders; Floor space is big, and the system speed reaction is slow, influences serviceability.
A kind of accumulator station of forming by welding gas narrow-necked earthen jar and non-separator piston accumulator used in the present invention, it uses big capacity welding gas narrow-necked earthen jar, and single gas narrow-necked earthen jar capacity is from 200 liters-450 liters; Length with regulating the gas narrow-necked earthen jar realizes, 200 liters of gas narrow-necked earthen jars, and seamless steel pipe is short; 450 liters of gas narrow-necked earthen jars are long, also still so many weld seams, and the cost performance of atmosphere narrow-necked earthen jar is just high; Gas narrow-necked earthen jar capacity can be regulated with seamless steel pipe length, design, manufacturing, the convenient seamless steel pipe that also selects certain-length as far as possible of type selecting.Thereby only need 3 gas narrow-necked earthen jars can promptly satisfy more than said requirement, oily narrow-necked earthen jar in gas-tight bleeds oil, aspects such as sealing reliability and piston position detection; All have characteristics such as cost performance height; Seeing application number for details is 201110167433.2,201110152276, and 201110152276.8 patent.
As shown in Figure 3, the structural representation for the piston hydraulic cylinder 8 of large speed ratio large speed ratio band displacement transducer comprises piston/cylinder 8-5; End before and after piston/cylinder 8-5, all car has fine thread, and all is screwed with the first garden nut 8-4 and the second garden nut 8-8; At piston/cylinder 8-5 afterbody, be provided with buffer stopper 8-9, and twisting afterbody end cap 8-10; Tighten lockingly again with garden nut 8-8, on afterbody end cap 8-10, magnetostrictive displacement sensor 8-6 is installed, at piston/cylinder 8-5 head; For ease of dismounting with prevent Sealing distortion, anterior cylinder seat 8-3 is enclosed within on the piston/cylinder 8-5 with loose fit, will seal flap 8-2, anterior cylinder seat 8-3 and the first garden nut 8-4 then and connect as one with bolt, nut and gasket assembly; Piston rod and piston assembly 8-1 are arranged in the piston/cylinder 8-5, and it integrates the multi-functional mixing welded unit of piston rod, piston, buffering guiderod, and its afterbody is fixed with position magnet 8-7; And there is the induction rod of magnetostrictive displacement sensor 8-6 therefrom to pass through; With control stand and steel billet rising or falling speed, in piston/cylinder 8-5, there are piston rod and piston 8-1 to move to each position, all send position signal synchronously; And, control the action of oil hydraulic cylinder automatically according to the program that presets.
The piston hydraulic cylinder 8 of large speed ratio band displacement transducer is similar with pot type piston formula hydraulic cylinder structure basically; Its internal structure also has the adjustable damping device in terminal, dust ring, decides sealing, motive sealing, guide pin bushing, outlet valve etc.; Install that pattern is also the same with common oil hydraulic cylinder to have a multiple pattern, do not enumerate explanation one by one.The piston hydraulic cylinder of large speed ratio large speed ratio band displacement transducer and the main difference of conventional piston hydraulic cylinder are in the balance sysmte at the gas that is exclusively used in lifting load, oily non-isolation hybrid type plug accumulator station; It is one and promotes the transmission fluid cylinder pressure that steel billet rises; Be again the control oil hydraulic cylinder of a control elevating movement speed, also promote stand and steel billet resets.The piston hydraulic cylinder of large speed ratio large speed ratio band displacement transducer has its feature: large speed ratio is that the area ratio is 4-5:1, and its mainly is responsible for promoting steel billet rising, conducts oneself with dignity by steel billet and stand during decline; With impose less thrust, overcome the resistance of plunger piston fluid pressure cylinder and piston hydraulic cylinder Sealing etc., accumulator is because of the resistance of caused pressure reduction variation of nitrogen pressurized etc.; Be provided with magnetostrictive displacement sensor and control the hydraulic cylinder piston rising or falling speed automatically; Reach steel billet and gently lift and put down gently, install, setovered in piston cylinder afterbody balance staff hole for the ease of magnetostrictive displacement sensor; For the ease of the dismounting of safeguarding of Sealing, guide pin bushing etc., adopt bolt to connect anterior cylinder seat.
As shown in Figure 4; Load and time diagram for unified each oil hydraulic cylinder of stepping period of hydraulic pressure system; It with produce 600000 tons of rods per year, the wire rod workshop is that example is made, its transverse axis is represented the time, longitudinal axis representative load; Load 7-1 when going up and down with plunger piston fluid pressure cylinder 10 dike up-down stands; Load 7-2 when the oil hydraulic cylinder 8 of the double control of large speed ratio transmission speed and plunger piston fluid pressure cylinder 9 common dike up-down stands and steel billet, the load 7-3 when translation oil cylinder device 7 is passed translation stage, the load 7-4 the when oil hydraulic cylinder 8 of large speed ratio band displacement transducer promotes steel billets and stand decline; Load 7-5 when translation oil cylinder device 7 resets translation stage, the load 7-6 when steel-pushing machine cylinder apparatus 6 pushes away base.
Visible from schematic representation, these load characters that promote motion are; Be mainly lifting load, in a stepping period, account for 90% of total load; Wherein lifting load is especially big; And action time is very short, is about 1/6 of a stepping period; Each load constant is constant in the one-period; Load constant repeats by some cycles unchangeably; Frequency of okperation is very high, per hour has approximately 50 times; Hydraulic transmission is again running continuously; In one-period, also be in no load condition for some time; The load of the hydraulic system of other walking beam furnace structure and time chart are also similar.Past must select for use than the large equipment capacity according to this concentrated load design hydraulic station of lack greatly, increases capital investment, waste energy, this Dan Zaida load down armamentarium put into operation, even little load or when zero load pump and motor also all turning round.Though present this hydraulic system is mostly used variable displacement pump, to adapt to the variation of payload; But concerning motor and variable displacement pump; No matter be that its efficiency curve all is relatively poor, still will consume many electric energy in little load or zero load ceaselessly running down; The state running that the so-called motor most of the time is in low load with strong power consumes many electric energy in vain.
Claims (9)
1. walking beam furnace hydro-cushion energy saving device; Comprise pumping plant (1); It is characterized in that: pumping plant (1) connects multifunctional stainless steel fuel tank (4), pumping plant from the fuel tank oil suction after relief valve (3) conflux to high pressure fine filter (14), high pressure fine filter (14) be divided into three the tunnel after safety valve (12) is connected; One the road is connected to accumulator station (11); One the tunnel is connected to each oil hydraulic cylinder through high pressure line (P), and one the tunnel receives oil return pipeline (T), and steel-pushing machine oil hydraulic cylinder (6) connects pressure line (P) and oil return pipeline (T) through solenoid directional control valve (5); Translation oil hydraulic cylinder (7) links to each other with the 6th Proportional valve (5-6) through first solenoid directional control valve (5-1); The 6th Proportional valve (5-6) connects pressure line (P), oil return pipeline (T) and draining pipeline (S), and the rod chamber pipeline of the piston hydraulic cylinder (8) of large speed ratio band displacement transducer connects the 3rd solenoid directional control valve (5-3), and the 3rd solenoid directional control valve (5-3) has two pipelines; A pipeline connects second solenoid directional control valve (5-2) and the 6th Proportional valve (5-6) successively; Root one pipeline connects the 4th solenoid directional control valve (5-4) in addition, and the pipeline of the piston cavity of the piston hydraulic cylinder (8) of large speed ratio band displacement transducer connects the 4th solenoid directional control valve (5-4), and an end of the 4th solenoid directional control valve (5-4) connects pressure line (P); The other end connects top petrol tank (10); Top petrol tank (10) is provided with spill pipe, is provided with bypass oil discharge pipe and repairing pipe in the bottom of top petrol tank (10), is provided with air-strainer on the top of top petrol tank (10); The accent pipeline of plunger piston fluid pressure cylinder (9) connects the 5th solenoid directional control valve (5-5); An interface of the 5th solenoid directional control valve (5-5) connects first one-way valve (13) and second one-way valve (13-1) respectively, in first one-way valve (13) and second one-way valve (13-1) any one be connected to high pressure fine filter (14) after, it is preceding that another is connected to high pressure fine filter (14).
2. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1; It is characterized in that: said fuel tank comprises the first stainless steel casing (3); Vane pump (3-5) or gear pump connect heater (3-7) and cooler (3-6) successively; Influent side at cooler (3-6) is provided with two-position two-way solenoid valve (3-4); At the preceding water filter (3-2) that is provided with of two-position two-way solenoid valve (3-4), cooler (3-6) is connected with the first stainless steel casing (3) again after connecting filter (3-3).
3. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1; It is characterized in that: said fuel tank comprises second stainless steel fuel tank (4); In second stainless steel fuel tank (4), be provided with convoluted return tube (4-5); Be provided with permanent magnet (4-4) in the bottom of return tube (4-5), establish on the top of return tube (4-5) to remove and indulge in serfing the Net, be provided with the large size filter screen (4-6) of similar dividing plate shape at second stainless steel fuel tank (4) middle part; Filter screen (4-6) below is provided with vaporizer (4-3) and condenser, is provided with filter screen (4-1) at the inlet port of second stainless steel fuel tank (4).
4. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1, it is characterized in that: said pumping plant is made up of variable displacement pump (1-2) entirely, or is made up of jointly quantitative plunger pump (1-1) and Variable plunger pump (1-2).
5. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1, it is characterized in that: said plunger piston fluid pressure cylinder (9) is arranged in the walking beam furnace both sides, and said piston hydraulic cylinder (8) is arranged in the walking beam furnace middle part.
6. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1 is characterized in that: said plunger piston fluid pressure cylinder (9) is connected on the base with said piston hydraulic cylinder (8), is arranged in the centre of walking beam furnace.
7. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1 is characterized in that: said accumulator station (11) is assembled through shared support by at least one spinning gas cylinder and piston accumulator.
8. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1; It is characterized in that: said accumulator station (11) comprises at least one big capacity welding gas narrow-necked earthen jar (11-1); On big capacity welding gas narrow-necked earthen jar (11-1), be provided with base; Base is fixed on the ground with stone bolt; The bottom and the top of big capacity welding gas narrow-necked earthen jar (11-1) have been respectively equipped with sewage disposal facility (11-2) and electromagnetic separation device (11-3); Magnetic pollutant after the filtration is discharged from drain pipe (11-4), through electromagnetic separation device (11-3), is transported to a kind of gas, oil is non-in hybrid type piston accumulator (11-5) from the nitrogen that comes out of welding gas narrow-necked earthen jar (11-1).
9. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1; It is characterized in that; The piston hydraulic cylinder (8) of said large speed ratio band displacement transducer comprises piston/cylinder (8-5); All be provided with cushion pad (8-9) in the end, front and back of piston/cylinder (8-5); The first garden nut (8-4) and the second garden nut (8-8) are located at respectively on the end, front and back of piston/cylinder (8-5), are screwed with afterbody end cap (8-10) at piston/cylinder (8-5) afterbody, and afterbody end cap (8-10) is tightened locking through garden nut (8-8); On afterbody end cap (8-10), be provided with magnetostrictive displacement sensor (8-6) and biasing balance staff hole (8-11); Anterior cylinder seat (8-3) is enclosed within the head of piston/cylinder (8-5) with loose fit, and sealing flap (8-2), anterior cylinder seat (8-3) and the first garden nut (8-4) connect as one through bolt, nut and packing ring, are provided with piston rod and piston assembly (8-1) in the piston/cylinder (8-5); Afterbody at piston/cylinder (8-5) is fixed with position magnet (8-7), and has the induction rod of magnetostrictive displacement sensor (8-6) therefrom to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110269391A CN102322452A (en) | 2011-09-13 | 2011-09-13 | Hydraulic balanced energy-saving device for stepped heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110269391A CN102322452A (en) | 2011-09-13 | 2011-09-13 | Hydraulic balanced energy-saving device for stepped heating furnace |
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| CN102322452A true CN102322452A (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110269391A Pending CN102322452A (en) | 2011-09-13 | 2011-09-13 | Hydraulic balanced energy-saving device for stepped heating furnace |
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| CN102889785A (en) * | 2012-10-08 | 2013-01-23 | 北京索普液压机电有限公司 | Lime rotary kiln as well as hydraulic control system thereof |
| CN104314887A (en) * | 2014-10-15 | 2015-01-28 | 中国矿业大学 | Line hydraulic energy storage system and method |
| CN104405731A (en) * | 2014-11-20 | 2015-03-11 | 西安庆安航空试验设备有限责任公司 | Hydraulic oil liquid heating system |
| CN104632788A (en) * | 2014-12-30 | 2015-05-20 | 大连维乐液压制造有限公司 | Stepping mechanism hydraulic station |
| CN108361277A (en) * | 2018-02-02 | 2018-08-03 | 郭骞 | A kind of multi-point self-balancing hydraulic pressure slide carriage device for large-scale component sliding |
| CN108916144A (en) * | 2018-07-04 | 2018-11-30 | 北京航天发射技术研究所 | A kind of dynamic hydraulic combined oil supply system |
| 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 |
| CN109882457A (en) * | 2019-04-08 | 2019-06-14 | 长沙理工大学 | A kind of energy-regenerating system of combined type hydraulic cylinder |
| CN111577686A (en) * | 2020-05-18 | 2020-08-25 | 广东志成电液科技有限公司 | Stepping hydraulic equipment and control method thereof |
| CN113530901A (en) * | 2021-09-15 | 2021-10-22 | 江苏南方润滑股份有限公司 | Direct energy storage type hydraulic control system of negative load |
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| CN108361277A (en) * | 2018-02-02 | 2018-08-03 | 郭骞 | A kind of multi-point self-balancing hydraulic pressure slide carriage device for large-scale component sliding |
| CN108916144A (en) * | 2018-07-04 | 2018-11-30 | 北京航天发射技术研究所 | A kind of dynamic hydraulic combined oil supply system |
| 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 |
| CN109882457A (en) * | 2019-04-08 | 2019-06-14 | 长沙理工大学 | A kind of energy-regenerating system of combined type hydraulic cylinder |
| CN111577686A (en) * | 2020-05-18 | 2020-08-25 | 广东志成电液科技有限公司 | Stepping hydraulic equipment and control method thereof |
| CN113530901A (en) * | 2021-09-15 | 2021-10-22 | 江苏南方润滑股份有限公司 | Direct energy storage type hydraulic control system of negative load |
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Application publication date: 20120118 |