CN201507500U - Stepping type heating furnace hydraulic balance energy-saving device - Google Patents

Stepping type heating furnace hydraulic balance energy-saving device Download PDF

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Publication number
CN201507500U
CN201507500U CN2009200762387U CN200920076238U CN201507500U CN 201507500 U CN201507500 U CN 201507500U CN 2009200762387 U CN2009200762387 U CN 2009200762387U CN 200920076238 U CN200920076238 U CN 200920076238U CN 201507500 U CN201507500 U CN 201507500U
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China
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piston
narrow
necked earthen
earthen jar
cylinder
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CN2009200762387U
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Chinese (zh)
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何学才
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何学才
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Abstract

The utility model provides a stepping type heating furnace hydraulic balance energy-saving device, which is characterized in that most of devices in an original hydraulic system are utilized, an independent balance device is further added, one end of a cavity with rod of a large ration position hydraulic cylinder is connected with a proportional reversing valve through a pilot-operated one-way valve, and then is connected onto a pressure pipeline P of a main hydraulic system so as to take up and put down steel blanks gently, a pipeline at one end of the cavity without rod of the large ration position hydraulic cylinder is connected with an electromagnetic change-over valve, and then is connected onto a gas cylinder and liquid cylinder combined non-isolation low-pressure-difference E-shaped piston energy storage device through a safety valve group to balance all lifting loads, thereby an independent hydraulic system balance device is formed. By means of the modification in such way, the workload is smaller, the energy-saving effect is obvious, and the investment of newly-added devices can be retrieved in about one year. The stepping type heating furnace hydraulic balance energy-saving device can balance about 90% total load, has large capacity, low pressure difference, convenient regulation to balance pressure, simple and compact structure, few external wires and valves and small occupied area.

Description

A kind of walking beam furnace hydro-cushion energy saving device
Technical field
The utility model relates to a kind of walking beam furnace hydro-cushion energy saving device, is used for hydraulic transmission, belongs 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, but in mill, its ranking surely belongs to the eldest child in the subsidiary engine capacity, as 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, all do not use hydraulic balance system energy-conservation both at home and abroad at present in walking beam furnace, at that time also because of not having suitable device, thereby old traditional mode of production is failed breakthrough.
As shown in Figure 1, be former hydraulic pressure installation schematic representation, the walking machinery of walking beam furnace, adopt hydraulic transmission at present mostly, by variable piston pump-unit 1, stainless steel fuel tank device 2, oily circulating filtration, heating, cooling unit 3, steel-pushing machine cylinder apparatus 4, translation oil cylinder device 5 and hoist cylinder device 6 are formed.Hydraulic system has strict requirement to the temperature and the cleanliness of oil, is provided with independently oil circulating system, from 2 oil suctions of stainless steel tank mounting, through heating or cooling, more after filtering, flows back to stainless steel fuel tank 2 at last by the oil circulating pump device.Variable plunger pump system 1 is from 2 oil suctions of stainless steel tank mounting, after variable plunger pump system 1 pressurization, the hydraulic oil of output transfers to each cylinder apparatus by pressure line P, and each cylinder apparatus connects steel-pushing machine cylinder apparatus 4, translation oil cylinder device 5 and hoist cylinder device 6 again from pressure line P.Finish each operation by the program that presets then, the oil of its cylinder apparatus non-pressure side through return tube T, flows back to again in the stainless steel fuel tank device 2.The hydraulic pressure installation size of present walking beam furnace, it is the maximum load during by steel billet and stand lifting, select relevant device for use, its stainless steel fuel tank device 2, oily circulating filtration, heating, cooling unit 3, variable piston pump-unit 1, valve member etc. all must satisfy the needs of big load, and all devices of system must select very greatly like this.The hydraulicdriven frequency of okperation of walking beam furnace is very high, and continuous drive manner is adopted in hydraulic transmission, but the characteristics of walking beam furnace running are in short-term with step.
As shown in Figure 2, the load and the time diagram of unified each oil hydraulic cylinder of stepping period of hydraulic pressure system, it is to 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 during hoist cylinder device 6 dike lifting stands, load 7-2 when hoist cylinder device 6 dike lifting stands and steel billet, load 7-3 when translation oil cylinder device 5 is passed translation stage, load 7-4 during hoist cylinder device 6 decline lifting stands, load 7-5 when translation oil cylinder device 5 resets translation stage, the load 7-6 when steel-pushing machine cylinder apparatus 4 pushes away base.Its load character is; Be mainly lifting load, in a stepping period, account for 90% of total load; Lifting load is big; Load constant is constant; Load constant repeats unchangeably by some cycles; Though lifting load is big, accounts for very little proportion in the stepping period, is about 1/6 of a stepping period.The load of other walking beam furnace hydraulic system and time chart are also similar.This Dan Zaida load down armamentarium put into operation, even little load or when zero load pump and motor also all in running.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.
Summary of the invention
The purpose of this utility model provides a kind of hydro-cushion energy saving device that can play energy-saving effect.
In order to achieve the above object, the technical solution of the utility model, a kind of walking beam furnace hydro-cushion energy saving device is provided, comprise the variable piston pump-unit, the variable piston pump-unit is by pressure line and oil return pipeline, connect the stainless steel fuel tank device respectively, steel-pushing machine cylinder apparatus and translation oil cylinder device are formed power transmission system.The stainless steel fuel tank device connects oily circulating filtration, heating, cooling unit, form oily circulating filtration, heating, cooling system, it is characterized in that, the rod chamber place of large speed ratio piston hydraulic cylinder connects proportional reversing valve by first through Pilot operated check valve, an interface in the proportional reversing valve connects pressure line, another interface connects the oil return pipeline, form a control system, the rodless cavity of large speed ratio piston hydraulic cylinder connects solenoid directional control valve by second through Pilot operated check valve, solenoid directional control valve divides two the tunnel, wherein one the tunnel connects first gas respectively through the safety valve group, the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator, form individually balanced system, at first gas, the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator and is provided with inflatable tool, be provided with nitrogen charging equipment on the inflatable tool side, form individually balanced system.
The utility model utilizes original oily circulating filtration, heating, cooling system, and by the oil circulating pump device, oil suction in the stainless steel tank mounting, is returned in the stainless steel fuel tank device after cooling or heating, filtering oil again.The variable piston pump-unit, oil suction in the stainless steel tank mounting after the Variable plunger pump pressurization, on the incoming pressure pipeline, is transported to steel-pushing machine cylinder apparatus and translation cylinder apparatus from pressure line again.After the structure that employing the utility model provides, oily circulating filtration, heating, cooling system and stainless steel fuel tank device can be reduced, reduce investment outlay.
The utility model is used two hoist cylinders that promote the lifting stand instead the large speed ratio piston hydraulic cylinder, it can the whole lifting loads of balance, again can be by the programmed control system that presets, high geopotential energy heavily can also be held return-air, the liquid narrow-necked earthen jar makes up in the non-isolation low differential pressure inverse hill type piston accumulator, the concrete big I of large speed ratio piston hydraulic cylinder is comprehensively determined with the hydraulic coupling of hydraulic balance system setting according to the size of lifting load.The variable piston pump-unit can be continued to employ wherein two by five variable piston pump-units in the original device, save 3, though can not be called at this and to reduce investment outlay (as new design, this investment just can save), but as move to use it for anything else and also can save some money, but 3 pumps and motor do not put into operation, and can be used as spare part, and it is main energy-conservation and reduce the maintenance place that Here it is.As calculating with rod, 600,000 tons of Annual output of wire rod, as adopt the utility model walking beam furnace hydro-cushion energy saving device, transform 3 variable plunger pump systems of only stopping using, 330,000 kilowatt hours of in a year, can economizing on electricity approximately to building the walking beam furnace hydraulic system.As transforming to hydraulic system, workload is very little, as long as use two hoist cylinders that promote the lifting stands instead the large speed ratio piston hydraulic cylinder in situ, pipeline slightly adjusts, no equipment can be done standby in situ, and the appropriate location installs gas, liquid narrow-necked earthen jar and makes up non-isolation low differential pressure inverse hill type piston accumulator system in pumping plant again.
The utility model has the advantages that: 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. the retrofit work amount is very little, and about 1 year of improvement expenses is promptly recyclable; 4. big capacity, low differential pressure, general needs combined type gas, a liquid narrow-necked earthen jar body can satisfy the production demand; 5. liquid, gas narrow-necked earthen jar are made of one, and can make simple in structure, compact, speed of response piece, exterior tubing valve member few, and floor space is little.
Statement: for promoting and advocate this patent popularization, use, competition, right-safeguarding and rewards and punishments, use that first uses is preferential, the low charge of patent transfer, many units are shared, the high in accordance with the law fine of infringement and make non-honest record, the informant is high awards.
Description of drawings
Fig. 1 is the schematic representation of original hydraulic system;
Fig. 2 is the load and the time diagram of unified each oil hydraulic cylinder of stepping period of hydraulic pressure system;
The schematic representation of a kind of walking beam furnace hydro-cushion energy saving device that Fig. 3 provides for the utility model;
Fig. 4 is the structural representation of large speed ratio piston hydraulic cylinder;
Fig. 5 is the structural representation that gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator;
Fig. 6 is the structural representation of oily narrow-necked earthen jar;
Fig. 7 is that the A-A of Fig. 5 is to sectional view.
Embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 3, the schematic representation of a kind of walking beam furnace hydro-cushion energy saving device that provides for the utility model, comprise variable piston pump-unit 1, variable piston pump-unit 1 connects stainless steel fuel tank device 2 respectively by pressure line P and oil return pipeline T, steel-pushing machine cylinder apparatus 4 and translation oil cylinder device 5, form power transmission system, stainless steel fuel tank device 2 connects oily circulating filtration, heating, cooling unit 3, form oily circulating filtration, heating, cooling system, the rod chamber place of large speed ratio piston hydraulic cylinder 8 connects proportional reversing valve 6-1 by first through Pilot operated check valve 9, an interface among the proportional reversing valve 6-1 connects pressure line P, another interface connects oil return pipeline T, the rodless cavity of large speed ratio piston hydraulic cylinder 8 connects solenoid directional control valve 14 by second through Pilot operated check valve 15, solenoid directional control valve 14 minutes two tunnel, wherein one the tunnel connects first gas respectively through safety valve group 13, the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator 10-A and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B, at first gas, the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator 10-A and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B and is provided with inflatable tool 11, be provided with nitrogen charging equipment 12 on inflatable tool 11 sides, form individually balanced system.
As shown in Figure 4; structural representation for large speed ratio piston hydraulic cylinder 8; comprise piston/cylinder 8-6; end before and after piston/cylinder 8-6, all car has fine thread, and all is screwed with the first garden nut 8-4 and the second garden nut 8-10; at piston/cylinder 8-6 afterbody; twisting afterbody end cap 8-13, tighten with garden nut 8-10 more locking, on afterbody end cap 8-13; have turnover oilhole 8-12; magnetostrictive displacement sensor 8-9 also is installed on it, and its end also compresses block 8-11, and block 8-11 makes removable; on material, select the material of easily rubbing for use; with protection buffer piston bar, on block 8-11 length, open the groove of different depth simultaneously, with the speed of regulating piston buffering.At piston/cylinder 8-6 head, for ease of dismounting with prevent Sealing distortion, anterior cylinder seat 8-2 is enclosed within on the piston/cylinder 8-6 with loose fit, to seal flap 8-1 then, the anterior cylinder seat 8-2 and the first garden nut 8-4 bolt, nut and gasket assembly 8-5 connect as one, wherein also there is block 8-11 to be fixed between sealing flap 8-1 and the piston/cylinder 8-6, piston rod and piston assembly 8-7 are arranged in the piston/cylinder 8-6, it collects piston rod, piston, buffering guiderod is in the multi-functional mixing welded unit of one, its afterbody is fixed with position magnet 8-8, and there is the induction rod of magnetostrictive displacement sensor 8-9 therefrom to pass through, in piston/cylinder 8-6, piston rod is arranged, piston 8-7 moves to each position, all send position signal synchronously, and, control the action of oil hydraulic cylinder automatically according to the program that presets.
The large speed ratio piston hydraulic cylinder is the same with pot type piston formula oil hydraulic cylinder basically, its internal structure also has the adjustable damping device of terminal, dust ring, fixed sealing, motive sealing, guide pin bushing, outlet valve etc., install that pattern is also the same with common oil hydraulic cylinder a multiple pattern, main difference is the gas that is exclusively used in lifting load, the liquid narrow-necked earthen jar makes up in the non-isolation low differential pressure inverse hill type piston accumulator balance sysmte, it is a balance hydraulic cylinder, it is again a control oil hydraulic cylinder, the large speed ratio piston hydraulic cylinder has two oily interfaces of turnover, afterbody oil inlet and outlet 8-12 connects gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10, aim at the balance lifting load, the end oil inlet and outlet 8-3 of its large speed ratio piston hydraulic cylinder directly links to each other with the control system of main hydraulic system, plays and operates, stop, control actions such as speed governing.
As shown in Figure 5, make up the structural representation of non-isolation low differential pressure inverse hill type piston accumulator 10 for gas, liquid narrow-necked earthen jar, comprise oily narrow-necked earthen jar 10-1, be provided with accumulator bearing 10-2, be provided with the gentle narrow-necked earthen jar 10-4 of high-pressure ball valve 10-3 on the top of oily narrow-necked earthen jar 10-1 at the bottom of oily narrow-necked earthen jar 10-1 side.The characteristics of this gas narrow-necked earthen jar 10-4 are all to be welded with standard universal spare, easy processing, and cost is low, and the amount of capacity combination is easy, and the gas narrow-necked earthen jar body on both sides is the bearing of gas narrow-necked earthen jar, is again the part of gas narrow-necked earthen jar body.Oil narrow-necked earthen jar 10-1 and gas narrow-necked earthen jar 10-4 are combined into one, and speed of response is fast, compact structure, simple.Oil narrow-necked earthen jar 10-1 and gas narrow-necked earthen jar 10-4 are separated by high-pressure ball valve 10-3, easily and fast, do not waste source of the gas when oily narrow-necked earthen jar Maintenance and Repair.
As shown in Figure 6, the oily narrow-necked earthen jar structural representation for band magnetic induction type contact-making switch comprises link 10-5, and its upper flange links to each other with high-pressure ball valve 10-3, is provided with bar magnet filter 10-6 at the middle part of link 10-5.Filtration is by the air-flow of its carrying magnetic pollutant in the gas narrow-necked earthen jar 10-4 of carbon steel weldering system.Its underpart links to each other with oily narrow-necked earthen jar body 10-10 by screw thread, induction type is housed near one of switch 10-7 at link 10-5 and oily narrow-necked earthen jar body 10-10 top end, be equipped with near switch triggering body 10-7 on all-aluminium piston 10-11 top, on switch triggering body 10-7, there are two trigger heads when need repairing and repairing are expired, to send signal, the distance of this two trigger head is regulated according to on-the-spot needs.Thisly do not require that piston position changes and send the system of signal and control continuously, adopts induction type simple in structure near switch, than adopting magnetostrictive displacement sensor, install simple, inexpensive reliably.
In oily narrow-necked earthen jar body 10-10, be provided with all-aluminium piston 10-11, make the rim of a cup shape on all-aluminium piston 10-11 top, in fill with oil, the oilhole 10-9 that to be provided with 1-3 diameter in the contacting point of the upper side of all-aluminium piston 10-11 and oily narrow-necked earthen jar body 10-10 be 2-4mm, oilhole 10-9 leads to the Sealing on the all-aluminium piston 10-11, form oil sealing, in other words in the gas narrow-necked earthen jar, one of regeneration is formed oily, the non-isolated piston accumulator of gas by the gentle direct contact of a small amount of oil.But be somebody's turn to do a small amount of oil and in all-aluminium piston 10-11 moving process, do not pressed, may be when the oil cylinder internal leakage but meet, what leakage was advanced is oil, rather than gas.Even leakage is arranged, measure also very little, and all-aluminium piston 10-11 oil, gas pressure at both sides is alternate, and seepage also is two-way, because of oil sealing is arranged, leaking perforated all is oil, this just prevents the gas hydraulic system of bleeding, and this multiple tracks leakage protection device is without polyvoltine money, structure is also uncomplicated., but improve the safety reliability of system greatly.
When accumulator need overhaul the Sealing, guide pin bushing or the cleaning bar magnet filter 10-6 that change on the all-aluminium piston 10-11 and goes up dirt, with accumulator gas narrow-necked earthen jar 10-4 inner high voltage gas elder generation getting in touch with high-pressure ball valve 10-3 cut-out and oily narrow-necked earthen jar 10-1, because both sides do not have pressure reduction, switch high-pressure ball valve 10-3 is easier to.Then by nitrogen charging equipment 12, residual air in the oily narrow-necked earthen jar 10-1 is sent in the gas narrow-necked earthen jar 10-4, making oily narrow-necked earthen jar 10-1 internal pressure be lower than oil compensation pressure slightly gets final product, after repairing is finished, again gas narrow-necked earthen jar 10-4 inner high voltage gas is put back to, at this moment the pressure in gas narrow-necked earthen jar 10-4 and the oily narrow-necked earthen jar 10-1 has equated again, this time again high-pressure ball valve 10-3 is opened, finish the repairing process.
Fig. 7 is the sectional view of Fig. 5 A-A, and accumulator gas narrow-necked earthen jar 10-4 is a bar, can be installed on Kao Qiangchu, is convenient to arrange.
Working principle of the present utility model is: the utility model is provided with 2 gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator, wherein gas, a liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator 10-A, and its power source specializes in steel billet and the stand up and down balance system is used (balance pressure more greatly); Another gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator 10-B, and its power source is specialized in the stand up and down balance system and used (balance pressure is littler); The accumulator working pressure of work, can be transferred to optimum pressure respectively by nitrogen charging equipment 12, set up according to actual conditions by the scene, because of it is a hydraulic balance system independently, the pressure size of it and main hydraulic system is irrelevant, it can be heightened pressure in main hydraulic system, and this can make the equipment of balance sysmte select slightly smallerly, saves investment.
Suppose to begin when stand is in low level step-by-step operation, this time stand lifting, it is not to be with steel billet, it is less to promote load, makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B for kinetic energy by gas, liquid narrow-necked earthen jar.Suppose specific operation: (specific operation have multiple choices, by design and on-the-spot definite according to actual conditions) establish gas, the liquid narrow-necked earthen jar makes up gas minimum pressure in the non-isolation low differential pressure inverse hill type piston accumulator 10-B and is transferred to the required hydraulic working pressures of lifting large speed ratio piston hydraulic cylinder when promoting stand 8 slightly height is a bit, i.e. Dan Youqi all the time in theory, the pressure that the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B can rise load, also be in the rod chamber of large speed ratio piston hydraulic cylinder 8 certain hydraulic coupling to be arranged all the time, countercharging, it rises, controlling it promotes by giving setting program, when solenoid directional control valve 14 and proportional reversing valve 6-1 move simultaneously, with gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B and large speed ratio piston hydraulic cylinder 8 and connects that (solenoid directional control valve 14 is to be in meta when walking-beam furnace is failure to actuate, gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B the large speed ratio piston hydraulic cylinder all is in obstructed state), gas at first, the liquid narrow-necked earthen jar makes up the hydraulic power of non-isolation low differential pressure inverse hill type piston accumulator 10-B, the lifting stand is promoted, large speed ratio piston hydraulic cylinder 8 breaks through it, make it by giving the setting program action, up to being risen to, the lifting stand gives fixed position, promptly arrive the table position of fixed rack, just rigidly connect the position of touching steel billet, this the time gas, the power of surging that the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator 10-B is lifting stand and steel billet load can't be held up, this the time solenoid directional control valve 14 commutation, with gas, the liquid narrow-necked earthen jar makes up the path blockade of non-isolation low differential pressure inverse hill type piston accumulator 10-B and large speed ratio piston hydraulic cylinder 8, simultaneously also with another gas, the liquid narrow-necked earthen jar makes up the path of non-isolation low differential pressure inverse hill type piston accumulator 10-A and large speed ratio piston hydraulic cylinder 8 and connects.This time also give and establish the hydraulic power that gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator 10-A, the hydraulic power that large speed ratio piston hydraulic cylinder 8 is produced with lifting stand and steel billet load is slightly high, then large speed ratio piston hydraulic cylinder 8 is in propradation, up to being risen to, the lifting stand gives fixed position, solenoid directional control valve 14 commutates to meta, cut off two gas, liquid narrow-necked earthen jars and make up the path of non-isolation low differential pressure inverse hill type piston accumulator 10 and large speed ratio piston hydraulic cylinder 8, finish whole lifting process this moment, also promptly stops to go up lift operations.The total pressure of large speed ratio piston hydraulic cylinder 8 rod chambers part (or claims speed ratio or claims the area ratio to be about 6-8 in theory, select for use as the case may be by the artificer), be greater than the power of multiple resistance and accumulator overvoltage in the system, that is when stand descends, it is the total pressure of load down increasing speed ratio piston hydraulic cylinder rod chamber part down, and hydraulic oil can be pushed back in the accumulator.Descending stroke is the upward stroke contrary operation, no longer carefully states.
The utility model is a hydraulic balance device independently, but unavoidably there is inside and outside leakage in hydraulic system, can flatten the balance system fluid infusion by the main hydraulic system feeding.Cause is the hydraulic balance device working pressure independently, working pressure greater than main hydraulic system, when repairing, can earlier high-pressure ball valve 10-3 be closed, use nitrogen charging equipment 12 then, part high pressure nitrogen with oily narrow-necked earthen jar top, be sent in the gas narrow-necked earthen jar, after tonifying Qi is finished, make in the defeated oil return narrow-necked earthen jar of the interior gas of gas narrow-necked earthen jar, reach two narrow-necked earthen jar body pressure and equate, open high-pressure ball valve 10-3 again and get final product.
Gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator 10 and form independently balance sysmte with large speed ratio piston hydraulic cylinder 8, its hydraulic oil sealing among a small circle in repeatedly, the long-time use, can form oil pollution to a certain degree, this moment can be when the walking-beam furnace inoperation, hydraulic oil in the hydraulic balance system is expelled back in the fuel tank of main hydraulic system, can carries out operations such as wash cycles, filtration the hydraulic oil of hydraulic balance system.
It is with piston nitrogen and hydraulic oil to be separated that gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator 10, in piston perseveration and both sides pressure alternate, there are pressure reduction in piston both sides oil, gas, after Sealing uses a period of time wearing and tearing, gas, oil may have leakage mutually, if any the gas liquid oil system that bleeds, then to hydraulic system safety, stable, normally move very harmful.Go into the gas narrow-necked earthen jar if any the liquid oil leakage, can regularly discharge, therefore in the side of piston by the gas narrow-necked earthen jar, all-aluminium piston is made a store oil rim of a cup, in fill with hydraulic oil, play the oil sealing effect, in other words in the gas narrow-necked earthen jar, one of regeneration is by the gentle oil of forming of a small amount of oil, the accumulator of the non-isolation that gas directly contacts, but should in the piston moving process, do not pressed by a small amount of oil, may be when the oil cylinder internal leakage even run into, what leakage was advanced is oil, rather than gas, the blocking-up gas hydraulic system of bleeding, simultaneously all move having under the oil condition in the Sealing both sides, and the power of can reducing friction increases the service life.

Claims (4)

1. walking beam furnace hydro-cushion energy saving device, comprise variable piston pump-unit (1), variable piston pump-unit (1) connects stainless steel fuel tank device (2) respectively by pressure line (P) and oil return pipeline (T), the oil circulating filtration, heating, cooling unit (3), steel-pushing machine cylinder apparatus (4) and translation oil cylinder device (5), stainless steel fuel tank device (2) connects oily circulating filtration, heating, cooling unit (3), steel-pushing machine cylinder apparatus (4) connects translation oil cylinder device (5), it is characterized in that, the rod chamber place of large speed ratio piston hydraulic cylinder (8) connects proportional reversing valve (6-1) by first through Pilot operated check valve (9), an interface in the proportional reversing valve (6-1) connects pressure line (P), another interface connects oil return pipeline (T), the rodless cavity of large speed ratio piston hydraulic cylinder (8) connects solenoid directional control valve (14) by second through Pilot operated check valve (15), solenoid directional control valve (14) Fen Erlu, wherein one the tunnel connects first gas respectively through safety valve group (13), the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator (10-A) and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator (10-B), at first gas, the liquid narrow-necked earthen jar makes up the non-isolation low differential pressure inverse hill type piston accumulator (10-A) and second gas, the liquid narrow-necked earthen jar makes up non-isolation low differential pressure inverse hill type piston accumulator (10-B) and is provided with inflatable tool (11), at the other nitrogen charging equipment (12) that is provided with of inflatable tool (11).
2. a kind of walking beam furnace hydro-cushion energy conserving system as claimed in claim 1, it is characterized in that, described gas, liquid narrow-necked earthen jar make up non-isolation low differential pressure inverse hill type piston accumulator (10) and comprise oily narrow-necked earthen jar (10-1), the bottom side of oil narrow-necked earthen jar (10-1) is provided with accumulator bearing (10-2), high-pressure ball valve (10-3) is located at the top of oily narrow-necked earthen jar (10-1), is provided with gas narrow-necked earthen jar (10-4) on the top of high-pressure ball valve (10-3).
3. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 2, it is characterized in that, described oily narrow-necked earthen jar (10-1) comprises link (10-5), be provided with bar magnet filter (10-6) at the middle part of link (10-5), the bottom of link (10-5) links to each other with oily narrow-necked earthen jar body (10-10) by screw thread, between link (10-5) and oily narrow-necked earthen jar body (10-10) top, induction type is housed near switch (10-7), in oily narrow-necked earthen jar body (10-10), be provided with top and make the all-aluminium piston of rim of a cup shape (10-11), the oilhole (10-9) that to be provided with 1~3 diameter in the contacting point of the upper side of all-aluminium piston (10-11) and oily narrow-necked earthen jar body (10-10) be 2~4mm is equipped with near switch triggering body (10-8) on all-aluminium piston (10-11) top.
4. a kind of walking beam furnace hydro-cushion energy saving device as claimed in claim 1, it is characterized in that, described large speed ratio piston hydraulic cylinder (8) comprises piston/cylinder (8-6), afterbody end cap (8-13) is located at the afterbody of piston/cylinder (8-6) by first round nut (8-10), on afterbody end cap (8-13), have turnover oilhole (8-12), in afterbody end cap (8-13), be provided with magnetostrictive displacement sensor (8-9), be provided with in afterbody end cap (8-13) and piston/cylinder (8-6) contacting point and compress block (8-11), on block (8-11) length, have groove, anterior cylinder seat (8-2) is located at head at piston/cylinder (8-6) by sealing flap (8-1) and second round nut (8-4), piston rod and piston assembly (8-7) are located in the piston/cylinder (8-6) to be had, afterbody at piston rod and piston assembly (8-7) is fixed with position magnet (8-8), and the induction rod of magnetostrictive displacement sensor (8-9) passes through from position magnet (8-8).
CN2009200762387U 2009-06-15 2009-06-15 Stepping type heating furnace hydraulic balance energy-saving device CN201507500U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182714A (en) * 2011-06-08 2011-09-14 何学才 Gas and oil non-isolated mixed type piston energy accumulator
CN102192202A (en) * 2011-06-21 2011-09-21 何学才 Energy accumulator station formed by welding air tank and mixing piston energy accumulator
CN102221291A (en) * 2011-03-29 2011-10-19 上海宝钢工业检测公司 Method for optimizing quantity of main pumps of hydraulic system of walking-beam furnace
CN102322453A (en) * 2011-09-13 2012-01-18 何学才 Produced hydraulic balance energy-saving modification device of walking beam furnace
CN102322452A (en) * 2011-09-13 2012-01-18 何学才 Hydraulic balanced energy-saving device for stepped heating furnace
CN102721289A (en) * 2012-07-06 2012-10-10 鞍钢集团工程技术有限公司 Energy-saving control method for heating furnace hydraulic system
CN108383039A (en) * 2018-02-27 2018-08-10 王素均 A kind of energy-saving stepping type lifter structure hydraulic control system
CN111646149A (en) * 2020-05-21 2020-09-11 张家港宏昌钢板有限公司 Monitoring and alarming system and method for billet feeding process

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221291B (en) * 2011-03-29 2015-03-04 宝钢工业炉工程技术有限公司 Method for optimizing quantity of main pumps of hydraulic system of walking-beam furnace
CN102221291A (en) * 2011-03-29 2011-10-19 上海宝钢工业检测公司 Method for optimizing quantity of main pumps of hydraulic system of walking-beam furnace
CN102182714A (en) * 2011-06-08 2011-09-14 何学才 Gas and oil non-isolated mixed type piston energy accumulator
CN102192202B (en) * 2011-06-21 2013-07-03 何学才 Energy accumulator station formed by welding air tank and mixing piston energy accumulator
CN102192202A (en) * 2011-06-21 2011-09-21 何学才 Energy accumulator station formed by welding air tank and mixing piston energy accumulator
CN102322453A (en) * 2011-09-13 2012-01-18 何学才 Produced hydraulic balance energy-saving modification device of walking beam furnace
CN102322452A (en) * 2011-09-13 2012-01-18 何学才 Hydraulic balanced energy-saving device for stepped heating furnace
CN102721289A (en) * 2012-07-06 2012-10-10 鞍钢集团工程技术有限公司 Energy-saving control method for heating furnace hydraulic system
CN108383039A (en) * 2018-02-27 2018-08-10 王素均 A kind of energy-saving stepping type lifter structure hydraulic control system
CN108383039B (en) * 2018-02-27 2019-08-13 王素均 A kind of energy-saving stepping type lifter structure hydraulic control system
CN111646149A (en) * 2020-05-21 2020-09-11 张家港宏昌钢板有限公司 Monitoring and alarming system and method for billet feeding process

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