CN202038990U - Hydraulic drive control system for pushing type uniform-flow cooler - Google Patents
Hydraulic drive control system for pushing type uniform-flow cooler Download PDFInfo
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- CN202038990U CN202038990U CN2010206176226U CN201020617622U CN202038990U CN 202038990 U CN202038990 U CN 202038990U CN 2010206176226 U CN2010206176226 U CN 2010206176226U CN 201020617622 U CN201020617622 U CN 201020617622U CN 202038990 U CN202038990 U CN 202038990U
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Abstract
The utility model relates to a hydraulic drive control system for a pushing type uniform-flow cooler, which is characterized in that the hydraulic drive control system comprises a central controller (1), an input module (2) and an output module (3), wherein the input module (2) and the output module (3) are respectively connected with the central controller (1). The hydraulic drive control system has the advantages that normal operation and efficient work of the cooler are ensured in an automatic control manner; the manual operation intensity and the labor cost are reduced; and the manual control can be conducted as required in the startup and maintenance operation. The hydraulic drive control system has foreseeable huge economic value and social value.
Description
Technical field
The utility model relates to a kind of driving current-sharing cooler hydraulic drive Controlling System.
Background technology
Driving current-sharing cooler (being called for short the SLTJ cooler) is the novel process equipment that is used for burning clinker of cement system cooling grog, and its novel comb tool module structure and cooling air Controlling System have many remarkable advantages than third generation cooling machine.It adopts fixedly the comb bed structure that cooling and conveying function are separated, and does not have activity gap that grate plate produces and wearing and tearing that relative movement produced, thus the work-ing life of raising grate plate.Owing to do not have to leak material, do not need hopper and airlock and machine for zipper to reduce the maintenance of equipment amount and have simple and efficient installation, operation and maintenance characteristics.
People expect to obtain a kind of and the matching used hydraulic drive Controlling System of driving current-sharing cooler, so that obtain better technique effect.
The utility model content
This purpose provides a kind of and the supporting use of driving current-sharing cooler and technique effect hydraulic drive Controlling System preferably.
A kind of driving current-sharing of the utility model cooler hydraulic drive Controlling System, it is characterized in that: it is made of following several sections: central controller 1, load module 2, output module 3; Wherein: load module 2, output module 3 are connecting central controller 1 respectively.
Driving current-sharing cooler hydraulic drive Controlling System described in the utility model, also claimed following preferred content:
Also include the measuring element that is used for detected temperatures, oil level, control valve aperture thrin or its combination that is arranged in the driving current-sharing cooler Hydraulic Station in the described driving current-sharing cooler hydraulic drive Controlling System;
Also be connected with on the described driving current-sharing cooler and be used to detect the cooler displacement or/and the detecting unit of hydro-cylinder limit position.
The detecting unit that being used in the described driving current-sharing cooler hydraulic drive Controlling System detected the cooler displacement specifically is a displacement sensor preferably, and the detecting unit that is used to detect the hydro-cylinder limit position is the spacing limit switch of using.
Also be provided with 3 working fluid press pumps and at least one reserve liquid press pump in the described driving current-sharing cooler hydraulic drive Controlling System, also be provided with simultaneously and be used to control the reserve liquid press pump so that substitute the control valve of working fluid press pump.
Further preferred content requires: in the described driving current-sharing cooler hydraulic drive Controlling System, central controller 1 is specially 37-300PLC, and load module 2 is specially digital quantity input module 6ES7321-1BHO2-OAAO or/and analog quantity load module 6ES7331-7KFO2-OABO, output module 3 is specially digital quantity output module 6ES7322-1BHO1-OAAO or/and analog output module 6ES7332-5HDO1-OABO.Each module has one at least, uses side by side.
Advantage of the present utility model:, guaranteed the normal running and the efficient operation of cooler with automatic control mode.Manual operation working strength and cost of labor have been reduced.In startup and remedial operation, also can carry out Artificial Control as required.The utlity model has foreseeable huge economic and social value.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 is a driving current-sharing cooler hydraulic drive Controlling System synoptic diagram;
Fig. 2 driving current-sharing cooler hydraulic drive Controlling System control principle block diagram;
Fig. 3 is the detailed circuit diagram of the numeral input of 2#PLC1 among Fig. 1; The various external conditionss of the word corresponding device of respectively composing a piece of writing in the upper right corner among Fig. 3, in the literal in the lower right corner, " automatically local " refers to moving automatically to teleseme under the normal operating conditions, the single step manual operation of using when " local single action " refers to debugging;
Fig. 4 is the schematic circuit of the N:2 correspondence among the 2#PLC1 among Fig. 1;
Fig. 5 is the schematic circuit of the N:3 correspondence among the 2#PLC1 among Fig. 1;
Fig. 6 is the schematic circuit of the N:4 correspondence among the 2#PLC1 among Fig. 1;
Fig. 7 is the schematic circuit of the N:5 correspondence among the 2#PLC1 among Fig. 1;
Fig. 8 is the schematic circuit of the N:6 correspondence among the 2#PLC1 among Fig. 1.
Embodiment
Driving current-sharing Refrigerator structure and principle of work:
Driving current-sharing cooler (SLTJ cooler) is made up of upper housing, lower housing, comb bed (8 modular units are formed), hydraulic power actuating system, grog crusher etc., other is furnished with 6 cooling blowers, wherein a Room is 1,2 of two Room (each one of left-right symmetry), a high pressure positive blower is respectively joined in its excess-three, four, five Room.Separate with bin isolation board between chamber and the chamber.Between horizontal two modules in Room 2, be provided with bin isolation board, again Room 2 be divided into two little air compartments of independence.The end of every adjacent two module movable frames links together with web plate to Room 5 from Room 2.Each module is furnished with a hydro-cylinder.Cement clinker falls into the bed of combing by feeding mouth and upward rolls to discharge end under the reciprocal promotion of stick pusher, enters crusher in crushing at last.This machine is installed on 4 ° of bases.Emphasized some integral parts wherein are as follows:
1, comb bed: the bed of combing is combined by modular unit, and its arrangement form is: 1+2 * 4." 1 " expression ladder module wherein; " 2 " expression comb bedside degree is made up of 2 file modular units; " 4 " expression comb bed length is made up of 4 modular units;
Described modular unit specifically is divided into: 3 kinds of feed end module, intermediate module and discharge end modules.Driving current-sharing cooler is specifically by 1 ladder module, 2 feed end modules, and 4 intermediate modules and 2 discharge end modules are formed.The long 5100mm of feed end module is made up of 15 row's grate plates.Wide 1500mm, the row grate plate is wide forms by 4.Intermediate module and discharge end module are long by 5400, are made up of 16 row's grate plates.Wide 1500mm, the row grate plate is wide forms by 4.All the other every kind module is formed by following parts except that the ladder module:
(1) module frame: module frame is the module force-summing element, comprises that the own weight of cement clinker and module all acts on the framework.Its parts are welded after by assemblings such as channel-section steel, H shaped steel, angle steel, steel plate and crossbeams.Supporting spacing pendulous device installs on its transmission crossbeam.
(2) support spacing pendulous device: supporting spacing pendulous device is to realize modular unit movable frame tangential movement support unit.Swing spacing supporting device and replaced riding wheel supporting device, structure adopts the sliding surface bearing multi-point support, does not have wearing and tearing.Swing limited block on the spacing supporting device bed of guarantee combing and when reaching the stroke stagnation point, play braking effect, hydraulic efficiency plant automatic deloading, thereby the safe and reliable operation of the bed of having guaranteed to comb.
(3) movable frame: movable frame is by longitudinal and cross beam and tiltedly draws by the fastening rectangular frame structure that welds together of bolting.Movable frame removes on playing a part to hold in modular unit, at first realizes its tangential movement by supporting spacing pendulous device, secondly by the thrust plate device that is installed on it with transmission of power on the stick pusher.
(4) thrust plate device: the thrust plate device is that the difficult point of making also is a key part simultaneously.It requires high-precision form and position tolerance and mechanical property.Thrust plate is sitting on the movable frame, and by angle steel and bolt that it is fastening.Thrust plate upper top square hole is used to connect the fixing and locking of stick pusher.
(5) hydro-cylinder: hydro-cylinder is arranged in the modular device mid-way, and the bearing on tailstock position and the module frame intermediate crossbeam is hinged, stretches out the thrust end and movable frame top end rail bearing is hinged.Hydro-cylinder range ± 100 millimeter working stroke ± 75 millis.
(6) grate plate: the designed grate plate form of this cooler is has the high-intensity casting grate plate of long service life: grate plate has 4 kinds except that ladder grate plate and end grate plate and blind plate, promptly flat grate plate and backgauge grate plate.Flat grate plate and backgauge grate plate are divided 2 kinds of left-right symmetry again.Flat grate plate, the backgauge grate plate is alternately distributed on every kind of module.All grate plates cooperate the planar resistance to air loss in order to guarantee with comb board roof beam, and mechanical workout has all been carried out in the bottom surface of every kind of grate plate and side.
(7) comb board roof beam: comb board roof beam is that cooler mainly supports force-summing element, and the quality of its design directly has influence on the cooling machine and normally uses.Ladder comb on the bed comb board roof beam because behind the grog layer and bearing stride is big wait point to be designed to after large scale structure.Module is combed on the bed comb board roof beam because grog layer relative thin is a little and each comb board roof beam is sitting in again on 2 crossbeams, so be designed to roomy thin type structure.The all comb board roof beams and the contact surface of grate plate all carry out mechanical workout to guarantee resistance to air loss.
(8) gas flow control valve: the air quantity control ball valve of being furnished with my company's independent research under every grate plate, what of wind supply quantity the switching that it can change the automatic regulating valve door according to the thickness and the grog granularity thickness of the bed of material on the bed of combing under combing and under the effect of comb upward pressure realize regulating, thereby improved the unit air volume cooling efficiency.Fixedly form by ventilation opening and two c /v mouths by one for gas flow control valve.
(9) material-pulling device: material-pulling device is made up of stick pusher and clip and tumbler pin.Stick pusher is locked in it on thrust plate by clip and tumbler pin, under the effect of logical stick pusher to-and-fro movement of the grog on the bed of combing and backgauge grate plate it is rolled to discharge end.The topmost thermal technology's element of material-pulling device cooling machine, it not only requires high temperature deformation resistance, also requires to have very high-wearing feature simultaneously, so material adopts special Heat resisting cast steel.
(10) slideway sealed structure: the slideway sealed structure is meant on the module because thrust plate drives the required slip labyrinth seal structure of stick pusher motion.It is made up of mounting block of two movable part therebetween.Gap between movable part and the mounting block is 1～2mm.Two movable parts are thrust plate and U-shaped sealing member, and fixing seals is mounted in the sealing plate on the comb board roof beam.Slip labyrinth seal has two effects, and one is to prevent from who knows that fine powder bleeds combs down, the 2nd, the comb leeward by sealed structure be blown into comb go up so that to cross sealed structure and near who knows and cool off.
2, upper housing: this cooler upper housing and third generation cooling machine upper housing structure are basic identical.Feeding mouth, exhaust outlet, manhole door, inspection door, chain proscenia, strike plate etc. are in full accord with traditional cooling machine, difference be exactly every width of upper housing be corresponding with module width, also form modularization, give like this and make and install and design and all bring many convenience.The every chip architecture of upper housing is welded by channel-section steel and steel plate substantially.
3, lower housing: the structure of lower housing is spliced by H shape steel, channel-section steel, steel plate, and every size is corresponding with module, and is connected with module by bolt
SLTJ cooler comb bed becomes 4 ° of ladders comb beds and 19 ° at horizontal plane with horizontal plane, help the output of grog like this.The bed of combing divides a high-temperature zone (one, two Room), follow-up in, cold zone.The high-temperature zone is a heat recovery area, behind the bed of material about 600 millimeters.
The bed of combing is made up of the comb board roof beam and the aerating grate plate of case structure.Box comb board roof beam and every aerating grate plate are formed " the little cold air chamber " of independent leakproof.All being furnished with one below each " little cold air chamber " relies on blast to regulate volume control damper automatically to satisfy the requirement of different air quantity.From a Room to five Room because the rank of the different institutes air distribution control valve of bed thickness and air quantity is also different.
In each inside modules, support spacing pendulous device and be installed on the module frame crossbeam.Movable frame is assembled on the spacing pendulous device of supporting.The thrust plate device is assembled on the movable frame.The hydro-cylinder two ends are connected with movable frame with the module frame crossbeam respectively.
Flat grate plate gone up by the bed of combing and the backgauge grate plate is alternately arranged.Arrange a stick pusher between each flat grate plate and the backgauge grate plate.
Material-pulling device and U-shaped sealing member are installed in thrust plate device peace.Comb board roof beam is installed on the module frame upper beam.Grate plate and comb board roof beam connect by bolt.Comb board roof beam has 3 kinds, promptly middle comb board roof beam and both sides comb board roof beam.The symmetrical each other part of both sides comb board roof beam.
Each line modular unit is formed an independent air compartment, and front and back all have bin isolation board and next module to separate the formation sealed gas chamber.
The bed exhaust end is equipped with hammer mill combing, directly be discharged in the bucket machine less than the grog of 25mm and transport by grid formula grid section, the bulk grog then falls into crusher in crushing, and cooling is broken more again to throw back the bed of combing ... till meeting the requirements of granularity, throw too far when the vertical chain curtain of suspension avoids crusher that the grog piece is thrown back the comb bed on the upper housing in crusher the place ahead, reduce unnecessary grog refrigerative internal circulating load again, hit on district's two side bodies being equiped with strike plate at crusher.
Inspection door, means of illumination, pressure gauge stand and vision slit are set respectively on the lower housing on demand.Feeding mouth, manhole door, exhaust outlet, lingering remnants of past customs discharge outlet are arranged on the upper body.Exhaust outlet is provided with chain proscenia and double-deck strike plate to prevent from what crusher was got the who knows impact that is produced with the rear in upper housing.The insulating refractory lining is built at upper enclosure inner wall and top by laying bricks or stones, with the protection casing, reduces calorific loss and avoids high ambient temperature.
The structure of above-mentioned cooling machine guarantees that it has following major function: the red heat grog is cooled off fast, can go into kiln secondary air and the wind-warm syndrome of going into the decomposing furnace tertiary air to improve by recovery waste heat from the process of cooling of grog again, thereby reduce the hear rate of kiln system; It plays a part conveying, broken and screening to material again simultaneously.
When the stick pusher of reciprocal promotion pushed grog by cooling machine comb bed, cooling air carried out sufficient heat exchange through grog and material is cooled off effectively.The comb bed of one, two Room correspondences is the quench area of hot grog and main heat recovery area in the hot junction.The purpose that gas flow control valve is housed at this end be for solve traditional cooling machine insoluble intake zone cloth uneven and make size separation (a side particle is thick, a side particle thin) because of the gyroscopic action of kiln, cause the cooling air short circuit, cause the bed local superheating (burning grate plate) of combing, common " Red River " appears in the fines place, has a strong impact on the typical problems such as running of cooling efficiency, heat recovery efficiency and cooling machine.
Present embodiment specifically is at above-mentioned driving current-sharing cooler and matching used hydraulic drive Controlling System, and it specifically is to be made of following several sections: central controller 1, load module 2, output module 3; Wherein: load module 2, output module 3 are connecting central controller 1 respectively.
The described driving current-sharing of present embodiment cooler hydraulic drive Controlling System also comprises following content:
Also include the measuring element of detected temperatures, oil level, control valve aperture respectively that is used for that is arranged in the driving current-sharing cooler Hydraulic Station in the described driving current-sharing cooler hydraulic drive Controlling System;
Also be connected with the detecting unit that is used to detect cooler displacement and hydro-cylinder limit position on the described driving current-sharing cooler.
The detecting unit that being used in the described driving current-sharing cooler hydraulic drive Controlling System detected the cooler displacement specifically is a displacement sensor, and the detecting unit that is used to detect the hydro-cylinder limit position is the spacing limit switch of using.
Also be provided with 3 working fluid press pumps and a reserve liquid press pump in the described driving current-sharing cooler hydraulic drive Controlling System, also be provided with simultaneously and be used to control the reserve liquid press pump so that substitute the control valve of working fluid press pump.When needs redundant hydraulic pump work, can carry out work by controller unlatching reserve liquid press pump.
In the described driving current-sharing cooler hydraulic drive Controlling System, central controller 1 is specially 37-300PLC, and load module 2 is specially digital quantity input module 6ES7321-1BHO2-OAAO or/and analog quantity load module 6ES7331-7KFO2-OABO, output module 3 is specially digital quantity output module 6ES7322-1BHO1-OAAO or/and analog output module 6ES7332-5HDO1-OABO.Each module all is a plurality of, connects corresponding apparatus respectively and carries out work.
Relational graph is referring to accompanying drawing 1～8.
The utility model requires automatic control system to utilize the instrument circuit of each related variable of technological process itself to realize the control of each several part equipment.Instrument circuit consists essentially of transmitter, setter and topworks.Its effect division is as follows:
Transmitter: measure procedural variable and transmit information, as a rule, also comprise a transmitter, measured value is converted to more useful form to setter.
Setter: the value of sensor determination is compared by the selected set(ting)value of operator.Change output valve by its difference or modified value.Use three kinds of regulative modes (or claiming to regulate rule) by controller.Be that ratio is regulated, integration is regulated and differential is regulated.The three again can integrated use.In the ratio regulative mode, the output valve of controller and the proportional variation of the variable quantity of its input signal: as long as have a difference because of the lasting variation of load makes between technological process value and set(ting)value, then the integration adjusting makes the output valve of controller by predetermined interval variation.Like this, make the technological process value turn back to set(ting)value, still, the output valve of controller has been a new value, if when the technological process value continued to change in the differential of pre-selected is set, then differential was regulated and made the output valve of controller change to a value at once, this value is that ratio is regulated required.Under operational condition, adjustment control to be establishing set(ting)value, and the actual change that this set(ting)value should make technological process is in this setting point minimum that fluctuates up and down, and the fluctuation time is the shortest.
Controller also can be set with manual operation.But this setting point does not just have control action kou, and output valve can be adjusted to any desired horizontal.Input value is shown, but controller is not done any response at this moment.
Topworks: as the final section of control loop, slave controller receives the signal of output, and with its adjustment equipment, thereby corrected the deviation in the technological process.
Although the composition of Controlling System is not quite similar, ternary control is normally requisite, monitors cooler with it, can accomplish reasonable normal running.Ternary control content such as table 1, and details are as follows:
Table 1
| Monitoring condition | Use |
| Blast under the comb of first compartment | Control bed of material resistance with the mode of adjusting the bed speed of combing |
| The blast of each chamber of recovery of heat band | Keep the constant cooling air quantity |
| Blast in the kiln hood cover | Maintenance is from the secondary air flow and the eliminating surplus air of cooler |
Cooler comb bed speed: by means of control loop, blast is regulated a cooler comb speed under the comb of the use feed end first or second compartment.Why not that to be used as monitoring condition be because the inflation bed of combing is equipped with in this cooler one, two Room for comb overdraft with first and second conventional chamber, one, two Room cooling airs only enter the aerating grate plate beam and aerating grate plate formed independently " little cold air chamber " among, do not go out the relation of it and the bed of material from the survey of combing down; Simultaneously, combing in one, two Room only has balance wind down, so should not adopt the conventional practice, promptly makes monitoring condition with the comb overdraft of one, two Room.And the 3rd Room correspondence is common comb bed, expect thick also evenly and fluctuate less, so be applicable to its comb overdraft and be used as the fast monitoring condition of combing.This pressure is the demonstration of certain air flow quantity blanking layer resistance, in order to keep certain bed of material resistance, adjusts bed thickness to adjust the bed comb speed of combing.Therefore, utilize the variation control loop of blast.The variation of blast causes the response of bed speed of combing, and facilitates the response of cooling air quantity.Two loop interactions, thus the air quantity that needs kept, controlled bed thickness so that material cools off fast.Must be pointed out, do not allow bed of material resistance to surpass the design pressure of blower fan.
The cooling air of compartment also plays a part to protect the cooler member to exempt from pyrolytic damage except that the cooling material via combing down.Best bed of material resistance as for every cooler comb bed should be determined by the actually operating experience.
Adjust the to comb controller of bed should be regulated in proportion and regulates not according to integration; Speed and comb overdraft are directly proportional so that comb.About the set(ting)value of controller proportional range, should before reaching maximum blower pressure, the cooler overdraft make the bed speed of combing reach maximum value.
Just accelerate gradually or slow down because this sets cooler speed of combing along with the increase of the 3rd compartment overdraft or minimizing, if the operation of cooler can adapt to the fluctuation of firer's condition, then needn't transfer again, speed changes the working conditions change that does not catch up with kiln if cooler is combed, can reduce the ratio set(ting)value, up to the comb speed control system that obtains expectation.
When if cooler is equipped with more than one transmission mechanism, every section transmission mechanism all with this section first Room comb overdraft by above-mentioned the same manner and the requirement independent control bed speed of combing.
Cooling air quantity: needed cooling air quantity will change with material treatment capacity and temperature of charge.This can realize by the automatic adjusting of air door of fan for common comb bed.In order to show air quantity, in each chamber blower fan ingress piezometer ring is housed, its control condition is negative pressure control.Every typhoon machine all should provide its actual air volume curve when supplying simultaneously.The controller that is used for each chamber blower fan should be regulated and integration adjusting co-operation with ratio.
To specify at present for the comb air quantity of bed of inflation at this and still can not realize automatic control (also generally not adopting this type of control in the cement mill, China and foreign countries as yet) with the home-made equipment.Therefore to the air quantity of one, two Room only by operator according to the bed of material. expect that warm situation controls by regulated valve; The air door of all blower fans is equipped with mechanical arresting device, closes fully to prevent air door.Therefore, should do the linkage assembly that connects air door and drive unit suitably to regulate, make when drive unit is in what is called " full cut-off " position of corresponding air door the actual aperture that still has about 10% of air door.
Air draft control: in calcination process, use from the air of cooler as the secondary combustion air of preheating (secondary air).Secondary air is taken out by the kiln hood negative pressure and is drawn.Usually, cooling air quantity surpasses the combustion air amount, so need exhaust system that unnecessary air is discharged in the atmosphere.In order to keep suitable air capacity, should detect the kiln hood negative pressure, and negative pressure value on request controls the aperture of exhaust blower valve or the rotating speed of vsm, to regulate exhaust air rate and to enter the secondary air flow of kiln hood, in order to the stable operation of kiln zone of combustion, and prevent that effectively unsuitable kiln hood from leaking out.
The operating restraint of kiln hood negative pressure controller is-100～+ 25Pa.The set(ting)value of controller is as far as possible at the small negative pressure place near zero point.If pressing kiln hood pressure were-the 5Pa setting, when the secondary air flow of going into kiln increases because of kiln tail exhaust blower throttle opening strengthens, the negative pressure value of kiln hood will become bigger so, this variation will make the air door of cooling blower lingering remnants of past customs exhaust blower turn down slightly, thereby reduce exhaust air rate and be added to the air quantity of kiln, to adapt to the needs of twice air quantity increase, the kiln hood negative pressure returns to setting point again like this, and at this moment the controller in loop also will be regulated and integration adjusting co-operate with ratio.
The present embodiment content is substantially the same manner as Example 1, and its difference mainly is:
1) includes the measuring element that is used for detected temperatures, oil level, control valve aperture thrin or its combination that is arranged in the driving current-sharing cooler Hydraulic Station in the described driving current-sharing cooler hydraulic drive Controlling System;
2) also be connected with the detecting unit that is used to detect cooler displacement or hydro-cylinder limit position on the described driving current-sharing cooler.
3) also be provided with in the described driving current-sharing cooler hydraulic drive Controlling System 3 working fluid press pumps and 3 separately with a reserve liquid press pump that the working fluid press pump is corresponding, also be provided with simultaneously and be used to control the reserve liquid press pump so that substitute the control valve of working fluid press pump.
Claims (4)
1. driving current-sharing cooler hydraulic drive Controlling System, it is characterized in that: it is made of following several sections: central controller (1), load module (2), output module (3); Wherein: load module (2), output module (3) are connecting central controller (1) respectively; In the described driving current-sharing cooler hydraulic drive Controlling System, central controller (1) is specially 37-300PLC, and load module (2) is specially digital quantity input module 6ES7321-1BH02-0AA0 or/and analog quantity load module 6ES7331-7KF02-0AB0, output module (3) is specially digital quantity output module 6ES7322-1BH01-0AA0 or/and analog output module 6ES7332-5HD01-0AB0.
2. according to the described driving current-sharing of claim 1 cooler hydraulic drive Controlling System, it is characterized in that: also include the measuring element that is used for detected temperatures, oil level, control valve aperture thrin or its combination that is arranged in the driving current-sharing cooler Hydraulic Station in the described driving current-sharing cooler hydraulic drive Controlling System;
Also be connected with on the described driving current-sharing cooler and be used to detect the cooler displacement or/and the detecting unit of hydro-cylinder limit position.
3. according to the described driving current-sharing of claim 2 cooler hydraulic drive Controlling System, it is characterized in that: the detecting unit that being used in the described driving current-sharing cooler hydraulic drive Controlling System detected the cooler displacement is a displacement sensor, and the detecting unit that is used to detect the hydro-cylinder limit position is the spacing limit switch of using.
4. according to the described driving current-sharing of claim 2 cooler hydraulic drive Controlling System, it is characterized in that: also be provided with 3 working fluid press pumps and at least one reserve liquid press pump in the described driving current-sharing cooler hydraulic drive Controlling System, also be provided with simultaneously and be used to control the reserve liquid press pump so that substitute the control valve of working fluid press pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206176226U CN202038990U (en) | 2010-11-22 | 2010-11-22 | Hydraulic drive control system for pushing type uniform-flow cooler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206176226U CN202038990U (en) | 2010-11-22 | 2010-11-22 | Hydraulic drive control system for pushing type uniform-flow cooler |
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| Publication Number | Publication Date |
|---|---|
| CN202038990U true CN202038990U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206176226U Expired - Fee Related CN202038990U (en) | 2010-11-22 | 2010-11-22 | Hydraulic drive control system for pushing type uniform-flow cooler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435074A (en) * | 2011-12-20 | 2012-05-02 | 湖北爱默生自动化系统工程有限公司 | Control system of grate cooler |
-
2010
- 2010-11-22 CN CN2010206176226U patent/CN202038990U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435074A (en) * | 2011-12-20 | 2012-05-02 | 湖北爱默生自动化系统工程有限公司 | Control system of grate cooler |
| CN102435074B (en) * | 2011-12-20 | 2015-01-14 | 湖北爱默生自动化系统工程有限公司 | Control system of grate cooler |
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