CN101713412B - Intelligent driving device for fan of cooling tower - Google Patents
Intelligent driving device for fan of cooling tower Download PDFInfo
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- CN101713412B CN101713412B CN2009102422505A CN200910242250A CN101713412B CN 101713412 B CN101713412 B CN 101713412B CN 2009102422505 A CN2009102422505 A CN 2009102422505A CN 200910242250 A CN200910242250 A CN 200910242250A CN 101713412 B CN101713412 B CN 101713412B
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Abstract
The invention discloses an intelligent driving device for a fan of a cooling tower, which comprises a ratchet mechanism (1), the fan (2), a hydraulic turbine (3), a motor (4) and an intelligent controller (5). A hub of the fan (2) is fixed with an outer wheel of the ratchet mechanism (1) in a horizontal direction; an output shaft of the hydraulic turbine (3) is connected with the ratchet mechanism (1) through a coupler; and the output shaft of the motor (4) is connected with the ratchet mechanism (1) by an axle hole. Under the condition that a load is not very high or the environment is not very severe, the cooling tower needs a relatively low blowing rate and the hydraulic turbine (3) independently drives the fan (2) to run through the output shaft (35) and an outer ring (101) of a ratchet. Under the condition that the load is relatively high or the environment is relatively severe, the cooling tower needs a relatively high blowing rate, and the motor (4) runs under the control of the intelligent controller (5), and drives the fan (2) to run with the hydraulic turbine (3) through the transmission of the ratchet mechanism (1) so as to provide enough blowing rate for normal running of the cooling tower.
Description
Technical field
The present invention relates to a kind of intelligent driving device for fan of cooling tower, specifically a kind of high-efficiency and energy-saving type intelligent driving device for fan of cooling tower based on electric energy and mechanical energy combination drive and intelligent control.
Background technique
Cooling tower is the very general recycling equipment of water resources of using at present, and its major function is that cooling water and the air that will contain used heat carry out heat exchange and water is carried out drug-treated in tower, makes it to meet the requirements of temperature and water quality so that circulate once more.Because the needs of heat radiation all are equipped with the powerful cooling blower of power in the cooling tower, at present, the employed cooling blower overwhelming majority of cooling tower all is to cooperate corresponding reducing gear to drive by motor, consumes a large amount of electric energy; And on the other hand, the most cooling tower of practical application at present, its recirculated cooling water generally have bigger head more than needed (6-16m) at the water outlet of cooling tower fails to be fully used, and has wasted the electric energy that is used to drive water pump in a large number.Therefore, the huge electric energy of cooling blower and water pump makes the energy consumption of existing cooling tower rest on very high level all the time.
In order to improve the capacity usage ratio of cooling tower, cut down the consumption of energy, at present domestic have many enterprises and research institution studying employing water turbine and necessary reducing gear replacement motor driving blower fan running, obtain hydro powered type blower fan, by utilizing the pressure-driven blower fan running more than needed of cooling tower recirculated cooling water, make full use of the spent electric energy of pump motor, saved the electric energy that fan motor consumed simultaneously.
Patent of invention 02111169.3,200810023030.9,200710193069.0 etc. has announced that respectively the water turbine of double click type, mixed-flow, form such as tubular drives the embodiment of blower fan of cooling tower.The hydraulic turbine structure layout of three kinds of forms is similar, and water turbine is positioned at the below of blower fan, utilizes the kinetic energy impulse water turbine runner of recirculated cooling water, drives the blower fan running.Wherein, crossflow turbine is because the output torque is bigger, and the desirable speed reducer that disappears has been realized with blower fan direct-connected; And the water turbine of mixed-flow and form such as tubular fails to cancel speed reducer because the output torque is relative less.In the water turbine of three kinds of forms, Francis turbine most effective, tubular turbine secondly, and crossflow turbine efficient is minimum.
The water turbine product of producing according to above patent has obtained certain application in the recirculated cooling water field, has obtained certain energy-saving effect, but has also had problems, has restricted applying of this technology.At first, the cooling tower of using hydro powered type blower fan is the same with traditional cooling tower, and working state is single, accomplishes energy-saving run thereby can not carry out the intellectuality adjusting with the variation of each side condition.Water turbine is when driving the blower fan running, in fact consuming electric energy by pump motor indirectly, only because water pump does not belong to cooling tower on system divides, its energy consumption does not include the energy consumption of cooling tower to the formulation of so-called cooling tower energy-conservation 100% yet.Secondly, the head more than needed of cooling tower water outlet originally is for improving the allowance that system reliability is reserved, and along with the cooling tower increase of working time, the pipeline pipe decreases and increases, and this head more than needed can reduce gradually.And water turbine makes the pressure more than needed of pipeline water outlet decline to a great extent in that this part head more than needed is used, and along with the increase of working time, the reliability of system will reduce.The essence of this technology is to gather in the crops energy-saving effect with the functional reliability allowance of sacrificing cooling tower.At last, present hydro powered type blower fan is applied to the cooling tower of civil area more, and tower is little, and energy-saving potential is little.And be far longer than the industrial field of civil area at energy-saving potential, and this technology does not obtain large-scale promotion at present, and its main cause is that the power of fan of industrial cooling tower requirement is higher, and the cooling tower of same flow needs higher head more than needed.The hydro powered blower fan is applied in pressure, must be to improve pump head as supplementary means, to guarantee that blower fan turns round normally.Improving pump head then can increase the output power of pump motor, and energy-saving effect is unsatisfactory.Be that system is unreasonable and too pursue the energy dissipation that system reliability causes and fully utilize owing to design on this technological essence, for the novel cooling tower through optimal design, the potentiality of applying are little.
Summary of the invention
The objective of the invention is at existing cooling tower since merely use water turbine drive blower fan turn round the reliability decrease brought, apply and restricted, and the working state that cooling tower self exists is single, can't realize problems such as energy-saving run, propose a kind of intelligent driving device for fan of cooling tower based on mixed power and intelligent control.The present invention can obtain obvious energy-saving effect more under the prerequisite of high reliability operation.
Technological scheme of the present invention is as follows:
A kind of intelligent driving device for fan of cooling tower is made of five parts such as ratchet mechanism, blower fan, water turbine, motor and intelligent controllers.The wheel hub of described blower fan and the foreign steamer of ratchet mechanism are fixed, and rotate at same horizontal plane with ratchet mechanism; The output shaft of described water turbine links to each other with the coupling of ratchet mechanism, and the output shaft of described motor utilizes coupling to link to each other with the ratchet shaft of ratchet mechanism.
Described ratchet mechanism comprises ratchet outer shroud, ratchet star-wheel, roller, ejector pin, spring, ratchet lid, bearing cap, ratchet shaft, baffle ring, fixedly back-up ring, bearing, coupling.Wherein the ratchet outer shroud fixes with the wheel hub of blower fan in the horizontal direction; The ratchet star-wheel is positioned at the inboard of ratchet outer shroud, realizes fixing by key with ratchet shaft; Ratchet shaft links to each other with the output shaft of motor by coupling; Roller is between ratchet outer shroud and ratchet star-wheel, and the corresponding site of ratchet star-wheel in the roller moving region is processed into specific right angle notch geometry, is beneficial to the running of roller; Ejector pin is that the end is the drum of sphere, is installed on the end face of ratchet star-wheel right angle breach tangent direction, and the ratchet star-wheel is provided with circular port at the end face of right angle breach tangent direction, so that ejector pin is installed; Spring and ejector pin are used, and are installed on the circular port that the ratchet star-wheel is positioned at right angle breach tangent direction; The ratchet lid is installed on the top of ratchet outer shroud, and bearing cap is positioned at the top of ratchet lid; Baffle ring and fixedly back-up ring be positioned at the outer rim of ratchet star-wheel, the both sides up and down of roller; Bearing is positioned at the both sides up and down of ratchet shaft, and the outer ring is fixing with ratchet outer shroud and ratchet lid respectively; Coupling is positioned at the bottom of ratchet outer shroud, and axis hole is connected with the output shaft of water turbine.
Described water turbine comprises draft tube, runner, spiral case, support cover, output shaft, bearing and seven parts such as bearing and seat ring thereof.Wherein seat ring is positioned at the inboard of spiral case, the positive tangent plane of described spiral case is the diminishing rectangular configuration of area, one end of spiral case communicates with the water inlet of cooling tower cycling use of water, is provided with the water intake that communicates with the seat ring outside in the inboard of spiral case, is provided with annular fixed guide vane in the seat ring.Support cover is fitted on the seat ring, and runner is installed in the seat ring, and bearing and bearing thereof are installed on the support cover, the upper end of output shaft is connected with bearing and bearing thereof, the lower end of output shaft is passed support cover and is linked to each other with runner, draft tube be shaped as straight-tapered, link to each other with seat ring by flange.
Described intelligent controller 5 comprises electromagnetic flowmeter, pressure transducer, temperature transducer, humidity transducer, control chip, soft initiator, contactor, fus and circuit breaker etc.Wherein, the signal output part of electromagnetic flowmeter, pressure transducer, temperature transducer and humidity transducer links to each other with the signal input part of control chip; The signal output part of control chip links to each other with the signal input part of the signal input part of soft initiator and contactor; Be the electric power incoming line terminal box, the end of incoming cables of circuit breaker links to each other with the outlet terminal of electric power incoming line terminal box, and the outlet terminal of circuit breaker links to each other with the end of incoming cables of fus; Described soft initiator is conventional soft initiator device, and described contactor is conventional contactor device.The end of incoming cables of soft initiator links to each other with the outlet terminal of fus jointly with the end of incoming cables of contactor; The outlet terminal of soft initiator links to each other with the terminal box of motor jointly with the outlet terminal of contactor.
Superiority of the present invention and technique effect are:
1. compare with traditional cooling tower and the cooling tower of having used hydro powered type blower fan, use cooling tower of the present invention and can accomplish more energy-conservation.
Having used cooling tower of the present invention can be according to the parameter free adjusting working state of cooling water and environment, and relatively under the harsh conditions, intelligent controller control fan motor puts into operation, together drives the blower fan running with water turbine for higher or environment at load; In other most of the time, not very high or environment is not very under the harsh conditions at load, intelligent controller control fan motor is out of service, is turned round by water turbine single driving blower fan.So can save owing to the superfluous a large amount of waste of energy that causes of cooling tower cooling capacity, simultaneously, guarantee that cooling tower can proper functioning under extreme operating conditions.
2. compare with existing hydro powered type blower fan, the present invention can make the operational reliability of cooling tower system higher.
Used cooling tower of the present invention and when design, can rationally adjust the condition that fan motor puts into operation according to the situation of water pump lift more than needed.Under water pump lift condition with higher more than needed, reduce the working time of fan motor; Under the lower situation of water pump lift more than needed, then increase the working time of fan motor, realize system reliability and energy-conservation taking into account by reasonably adjusting the distribution of energy between water turbine and motor, reliability is higher than existing hydro powered type blower fan.
3. compare with existing hydro powered type blower fan, the present invention has Applicable scope more widely, more helps the popularization of hydro powered technology in the industrial circulating cooling water field.
Water turbine of the present invention does not have rigid restriction to the lift more than needed of cooling tower water outlet.For the transformation of old cooling tower, these characteristics can be widened the scope of transforming object greatly, and the cooling tower that many scripts are not suitable for carrying out hydro powered type fan improvement also might possess the transformation condition; For novel cooling tower, use the present invention and can choose the big degrees of freedom of Shi Yougeng in parameter designing and equipment, the global design of system is more optimized,, will be eliminated the restriction that power of fan is applied hydraulic drive apparatus greatly particularly in the industrial cooling tower field.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of ratchet mechanism of the present invention.
Fig. 3 is the plan structure schematic representation of ratchet mechanism of the present invention.
Fig. 4 is the structural representation of water turbine of the present invention.
Fig. 5 is the plan structure schematic representation of spiral case of the present invention.
Fig. 6 is the control principle schematic representation of intelligent controller of the present invention.
Embodiment
As shown in Figure 1, the present invention includes five parts such as ratchet mechanism 1, blower fan 2, water turbine 3, motor 4 and intelligent controller 5.The wheel hub of described blower fan 2 is fixed with the foreign steamer of ratchet mechanism 1 in the horizontal direction, and rotates at same horizontal plane with ratchet mechanism 1; The output shaft of described water turbine 3 links to each other with the coupling of ratchet mechanism 1; The output shaft of described motor 4 utilizes coupling to link to each other with the ratchet shaft 108 of ratchet mechanism 1.
As shown in Figure 2, described ratchet mechanism 1 comprises ratchet outer shroud 101, ratchet star-wheel 102, roller 103, ejector pin 104, spring 105, ratchet lid 106, bearing cap 107, ratchet shaft 108, baffle ring 109, fixedly back-up ring 110, bearing 111, coupling 112 etc.Wherein ratchet outer shroud 101 fixes with the wheel hub 21 of blower fan 2 in the horizontal direction, and ratchet outer shroud 101 utilizes coupling 112 to be connected with the output shaft 35 of water turbine 3.Sense of rotation when as shown in Figure 3, blower fan runs well is a clockwise direction.At load is not very high or environment is not very under the harsh conditions, and cooling tower is less to the demand of air quantity, and water turbine 3 is by output shaft 35 and 2 runnings of ratchet outer shroud 101 single driving blower fans.Ratchet star-wheel 102 is positioned at the inboard of ratchet outer shroud 101, realizes fixing by key with ratchet shaft 108; And then link to each other by the output shaft of coupling with motor 4.Roller 103 is between ratchet outer shroud 101 and ratchet star-wheel 102, be used for from ratchet star-wheel 102 to ratchet outer shroud passing shaft power at 101 intermittence, the corresponding site of ratchet star-wheel 102 in the roller moving region is processed into specific right angle notch geometry, is beneficial to the running of roller 103.Ejector pin 104 is installed on the end face of ratchet star-wheel 102 right angle breach tangent directions for the end is the cylindrical shape of sphere, and ratchet star-wheel 102 is provided with circular port at the end face of right angle breach tangent direction, so that ejector pin 104 is installed; Spring 105 is used with ejector pin 104, is installed on the circular port that ratchet star-wheel 102 is positioned at right angle breach tangent direction.Ejector pin 104 and spring 105 match, and provide elastic support to roller 103, can guarantee that roller 103 reliably contacts with ratchet outer shroud 101 when ratchet star-wheel 102 relative ratchet outer shrouds 101 clockwise rotate; When ratchet star-wheel 102 relative ratchet outer shrouds 101 rotated counterclockwise, spring 105 was compressed, and roller 103 disengages with ratchet outer shroud 101, thereby realized the intermittently-driving of ratchet mechanism.Baffle ring 109 and fixedly back-up ring 110 be used in the axial direction fixedly roller 103, the space of restriction roller 103 makes roller 103 can axial motion or inclination not take place in the process of ratchet mechanism 1 running, as shown in Figure 2.Ratchet lid 106 is installed on the top of ratchet outer shroud 101, and bearing cap 107 is positioned at ratchet and covers 106 tops, to make things convenient for the dismounting of ratchet mechanism 1 each parts.Bearing 111 is positioned at the both sides up and down of ratchet shaft 108, and the outer ring of bearing 111 is fixing with ratchet outer shroud 101 and ratchet lid 106 respectively; Coupling 112 is positioned at the bottom of ratchet outer shroud 101, and axis hole is connected with the output shaft 35 of water turbine 3.
At load is not very high or environment is not very under the harsh conditions, cooling tower is less to the demand of air quantity, require the rotating speed of blower fan lower, ratchet outer shroud 101 single driving blower fans 2 runnings that water turbine 3 passes through output shaft 35 and links to each other, and motor 4 does not put into operation with the ratchet star-wheel 102 that is attached thereto.Because ratchet mechanism 1 has the characteristic of unidirectional drive, the speed that turns clockwise when ratchet outer shroud 101 is during greater than ratchet star-wheel 102, roller 103 disengages with ratchet outer shroud 101, ratchet outer shroud 101 is to ratchet star-wheel 102 transmitted powers, thereby the power consumption situation that water turbine drives blower fan and motor operation simultaneously can not occur.
At the higher or environment of load relatively under the harsh conditions, cooling tower is bigger to the demand of air quantity, require the rotating speed of blower fan higher, motor 4 starts, and the rotating speed of ratchet star-wheel 102 raises, when the rotating speed of ratchet star-wheel 102 and ratchet outer shroud 101 are identical, both realize fixing by extruding roller 103, ratchet star-wheel 102 passes through roller 103 to ratchet outer shroud 101 transmitted powers, and then turns round with the water turbine 3 common blower fans 2 that drive, and moving for cooling tower is normal provides enough air quantity.Because water turbine is when load reduces, working speed can raise, continuous output, thereby the power consumption situation that motor drives blower fan and water turbine simultaneously can not appear.
Described water turbine 3 is an axial flow hydraulic turbine, comprises draft tube 31, runner 32, spiral case 33, support cover 34, output shaft 35, bearing and seven parts such as bearing 36 and seat ring 37 thereof.Wherein seat ring 37 is positioned at the inboard of spiral case 33, it is characterized in that the integral body of described spiral case 33 is scroll casing shape, as shown in Figure 5.As shown in Figure 4, water turbine 3 positive tangent planes are the diminishing rectangular configuration of area along water (flow) direction, evenly supply water to seat ring 37 with assurance, make flowing water flow have certain circular rector simultaneously, promote the rotation of runner 32 better.One end of spiral case 33 communicates with the water inlet of cooling tower cycling use of water, is provided with the water intake that communicates with seat ring 37 outsides in the inboard of spiral case 33.Seat ring 37 is as main load parts, be mainly used in the weight of parts such as the parts such as runner 32, support cover 34, bearing and bearing 36 thereof of carrying water turbine 3 and ratchet mechanism 1, blower fan 2, motor 4, a diversion component as water turbine 3 causes runner 32 with the current in the spiral case 33 simultaneously, is provided with annular fixed guide vane in seat ring 37.Support cover 34 is fitted on the seat ring 37, carrying the weight of parts such as parts such as runner 32, bearing and bearing 36 thereof and ratchet mechanism 1, blower fan 2, motor 4, simultaneously with current by the motion of the motion guidance of substantially horizontal to vertical direction, make it to promote runner 32 rotations.Runner 32 is installed in the lower end of output shaft 35, is positioned among the seat ring 37.Runner 32 is converted into the mechanical energy that runner 32 rotates with the kinetic energy of flow, by output shaft 35 outputs, and then drives load operation.Bearing and bearing 36 thereof are installed on the support cover 34, are used for fixing output shaft 35, and retraining it can only axially rotate, and can not do laterally or axial motion.Draft tube 31 be shaped as straight-tapered, link to each other with seat ring 37 by flange.The upper end of output shaft 35 links to each other with ratchet mechanism 1.If the rotating speed of water turbine 3 can't mate with blower fan 2, then need dispose corresponding reducing gear.
Described motor 4 is common threephase asynchronous, if the rotating speed of motor 4 can't mate with blower fan 2, then need dispose corresponding reducing gear.
As shown in Figure 6, described intelligent controller 5 comprises electromagnetic flowmeter 501, pressure transducer 502, temperature transducer 503, temperature transducer 504, temperature transducer 505, humidity transducer 506, control chip 507, soft initiator 508, contactor 509, fus 510 and circuit breaker 511.Wherein, the signal output part of electromagnetic flowmeter 501, pressure transducer 502, temperature transducer 503, temperature transducer 504, temperature transducer 505 and humidity transducer 506 links to each other with the signal input part of control chip 507, be respectively applied for enviromental parameters such as cooling tower Operational Limits such as the flow of gathering recirculated cooling water, pressure, entering water temp, water-exit temperature and dry-bulb temperature, humidity, send control chip 507 to analyze the signal that collects then.Control chip 507 is judged the situation of cooling tower and environment by analyzing the information of each sensor, determines whether motor comes into operation and concrete start and stop scheme, generates concrete control signal; The signal output part of control chip 507 links to each other with the signal input part of soft initiator 508 and the signal input part of contactor 509, and concrete control signal is transferred to soft initiator 508 through isolation with after amplifying and contactor 509 moves.L is the electric power incoming line terminal box, and the end of incoming cables of circuit breaker 511 links to each other with the outlet terminal of electric power incoming line terminal box L, and the outlet terminal of circuit breaker 511 links to each other with the end of incoming cables of fus 510; Circuit breaker 511 is used for make-and-break contact, disconnecting circuit fast when breaking down short trouble especially the most serious; Fus 510 is serially connected with circuit, when circuit is short-circuited or during excess load, automatic shutoff circuit is protected follow-up electrical equipment.Described soft initiator 508 is conventional soft initiator device, and described contactor 509 is conventional contactor device.The end of incoming cables of the end of incoming cables of soft initiator 508 and contactor 509 links to each other with the outlet terminal of fus 510 jointly, and the outlet terminal of the outlet terminal of soft initiator 508 and contactor 509 links to each other with the terminal of motor 4 jointly.When motor 4 needed to start, soft initiator 508 was devoted oneself to work, and control motor 4 is realized level and smooth the startup; When motor is finished the normal operation of startup beginning, contactor 509 closures, soft initiator 508 is out of service simultaneously.When motor 4 needs when out of service, contactor 509 disconnects, and soft initiator 508 is devoted oneself to work simultaneously, and control motor 4 is realized level and smooth the parking, and is out of service.
The working principle of a kind of intelligent driving device for fan of cooling tower based on mixed power and intelligent control involved in the present invention: the present invention adopts water turbine 3 and 4 two kinds of drive units of motor to drive blower fan 2 runnings, when water turbine 3 single driving blower fans turn round, claim that cooling tower is operated in the low power operation pattern; When motor 4 puts into operation, when turning round, claim that cooling tower is operated in the standard operating mode with water turbine 3 common driving blower fans.Wherein the working principle of water turbine 3 is: the spiral case 33 of the recirculated cooling water with certain pressure and flow by water turbine 3 forms certain velocity circulation and enters seat ring 37, guide functions by stator in the seat ring 37 and support cover 34 enters runner 32, drive runner 32 rotations, the current that lose a part of kinetic energy after the acting flow out into follow-up cooling tower water distributor from draft tube 31.The rotation of runner 32 drives the fan blade rotation through output shaft 35, ratchet mechanism 1, and this moment, ratchet star-wheel 102 was not with 101 rotations of ratchet outer shroud.
At load is not very high or environment is not very under the harsh conditions, and cooling tower is less to the demand of air quantity, is got final product through said process single driving blower fan by water turbine, and cooling tower enters the low power operation pattern, can realize the energy-saving run of cooling tower system thus.
At the higher or environment of load relatively under the harsh conditions, cooling tower is bigger to the demand of air quantity, intelligent controller 5 control motor 4 start, its output shaft 41 drives 102 rotations of ratchet star-wheel by ratchet shaft 108, ratchet star-wheel 102 passes through roller 103 to ratchet outer shroud 101 transmitted powers, and then drive blower fans 2 runnings with water turbine 3 is common, for the normal operation of cooling tower provides enough air quantity, cooling tower enters the standard operating mode.
The control principle of intelligent controller 5: when the water-exit temperature of cooling tower was lower than design load, the cooling effect of recirculated cooling water was better, showed that simultaneously there is the situation of cooling performance surplus in cooling tower.At this moment, intelligent controller 5 control motor 4 are out of service, and the blower fan 2 of cooling tower is by water turbine 3 single driving, and cooling tower enters the low power operation pattern.When the water-exit temperature of cooling tower was higher than design load, the cooling load of recirculated cooling water increased, and intelligent controller 5 is controlled motor 4 immediately and put into operation, and cooling tower enters the standard operating mode.Because motor 4 can not be with the variation frequent start-stop of parameters, therefore intelligent controller 5 is when control motor 4 puts into operation, the cooling tower running state of gathering according to each sensor and the information of environmental condition, the reason that analysis cycle water quench load increases, determine the start and stop operating scheme of motor, avoid the frequent start-stop and the waste of energy of motor.
(1) water-exit temperature when cooling tower is higher than design load, and when the dry-bulb temperature of environment or humidity of the air were higher than the design load of cooling tower low power operation pattern simultaneously, the reason that causes the cooling tower overload operation was the variation of enviromental parameter.Because the highest temperature can frequently not occur in one day, the variation of humidity of the air can be very not rapid and variation enviromental parameter certain rules is arranged, so this time, motor 4 start and stop were controlled by intelligent controller 5.When the water-exit temperature of cooling tower is lower than design load, when the dry-bulb temperature of environment and humidity of the air were lower than the design load of cooling tower low power operation pattern simultaneously, intelligent controller 5 control motor 4 were out of service, and cooling tower enters the low power operation pattern.
(2) water-exit temperature when cooling tower is higher than design load, and when the flow of recirculated cooling water increased simultaneously, the reason that causes the cooling tower overload operation was the increase of circulating cooling water flow.Intelligent controller 5 is not controlled motor 4 start and stop thereupon continually because of circulating cooling water flow fluctuation in short-term according to the start and stop of the steady change rule control motor 4 of flow.When the water-exit temperature of cooling tower is lower than design load, when the flow of recirculated cooling water was lower than the design load of cooling tower low power operation pattern simultaneously, intelligent controller 5 control motor 4 were out of service, and cooling tower enters the low power operation pattern.
(3) water-exit temperature when cooling tower is lower than design load, and when simultaneously the pressure of recirculated cooling water was lower than the required pressure of the normal operation of water turbine, the reason that causes the cooling tower overload operation was the decline of the fan delivery that causes of water turbine output power deficiency.If the decline of pressure is the result of cooling tower long-play accumulation, then reason is that the aging pressure loss that causes of pipeline of cooling tower increases, and need safeguard normally.Intelligent controller 5 shows relevant information at display floater when control motor 4 puts into operation.If loine pressure descends rapidly at short notice, the pipeline fault that takes place to stop up or break etc. then is described, need carry out rush repair.Intelligent controller 5 shows relevant information at display floater when control motor 4 puts into operation.When the water-exit temperature of cooling tower is lower than design load, when the pressure recovery of recirculated cooling water was to the required pressure of the normal operation of water turbine simultaneously, intelligent controller 5 control motor 4 were out of service, and cooling tower enters the low power operation pattern.
(4) water-exit temperature when cooling tower is lower than design load, and when simultaneously entering water temp was higher than design load, the reason that causes the cooling tower overload operation was that the equipment work that is cooled is unusual.Intelligent controller 5 control motor 4 put into operation, show relevant information at display floater simultaneously.Because intelligent controller 5 can't be grasped the working condition of the equipment of being cooled, after the equipment work that therefore is cooled is normal, need that manually control motor 4 is out of service on the panel of intelligent controller 5.
Because load situation higher or the environment comparison harsh conditions or the system failure only accounts for very little portion of time in the whole year, therefore motor just carries out the intermittence operation as required, can guarantee the cooling tower system fully under the prerequisite of reliable operation, realize energy-saving and cost-reducing.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. an intelligent driving device for fan of cooling tower is characterized in that described device comprises ratchet mechanism (1), blower fan (2), water turbine (3), motor (4) and intelligent controller (5); The wheel hub of described blower fan (2) is fixed with the foreign steamer of ratchet mechanism (1) in the horizontal direction, and the output shaft of water turbine (3) links to each other with ratchet mechanism (1) by first coupling, and the output shaft of motor (4) links to each other with ratchet mechanism (1).
2. intelligent driving device for fan of cooling tower according to claim 1 is characterized in that described ratchet mechanism (1) comprises foreign steamer (101), ratchet star-wheel (102), roller (103), ejector pin (104), spring (105), ratchet lid (106), bearing cap (107), ratchet shaft (108), the baffle ring (109) of ratchet mechanism (1), fixedly back-up ring (110), bearing (111) and first coupling (112); The foreign steamer (101) of described ratchet mechanism (1) fixes with the wheel hub (21) of blower fan (2); Ratchet star-wheel (102) is positioned at the inboard of the foreign steamer (101) of ratchet mechanism (1), realizes fixing by key with ratchet shaft (108); Ratchet shaft (108) links to each other with the output shaft of motor (4) by second coupling; Roller (103) is positioned between the foreign steamer (101) and ratchet star-wheel (102) of ratchet mechanism (1), and the corresponding site of ratchet star-wheel (102) in the roller moving region is processed into the right angle notch geometry, is beneficial to the running of roller (103); Ejector pin (104) is installed on the end face of ratchet star-wheel (102) right angle breach tangent direction for the end is the drum of sphere, and ratchet star-wheel (102) is provided with circular port at the end face of right angle breach tangent direction, so that ejector pin (104) is installed; Spring (105) is used with ejector pin (104), is installed on the circular port that ratchet star-wheel (102) is positioned at right angle breach tangent direction; Ratchet lid (106) is installed on the top of the foreign steamer (101) of ratchet mechanism (1), and bearing cap (107) is positioned at the top of ratchet lid (106); Baffle ring (109) and fixedly back-up ring (110) be positioned at the outer rim of ratchet star-wheel (102), the both sides up and down of roller (103); Bearing (111) is positioned at the both sides up and down of ratchet shaft (108), and the outer ring of bearing (111) is fixing with the foreign steamer (101) and the ratchet lid (106) of ratchet mechanism (1) respectively; First coupling (112) is positioned at the bottom of the foreign steamer (101) of ratchet mechanism (1), and axis hole is connected with the output shaft (35) of water turbine (3).
3. a kind of intelligent driving device for fan of cooling tower according to claim 1 is characterized in that described water turbine (3) comprises draft tube (31), runner (32), spiral case (33), support cover (34), output shaft (35), bearing and bearing (36) and seat ring (37); Described seat ring (37) is positioned at the inboard of spiral case (33), the positive tangent plane of described spiral case (33) is the diminishing rectangular configuration of area, one end of spiral case (33) communicates with the water inlet of cooling tower cycling use of water, be provided with the water intake that communicates with seat ring (37) outside in the inboard of spiral case (33), seat ring is provided with annular fixed guide vane in (37); Support cover (34) is fitted on the seat ring (37), runner (32) is installed in the seat ring (37), bearing and bearing (36) are installed on the support cover (34), the upper end of output shaft (35) is connected with bearing and bearing (36), and the lower end of output shaft (35) is passed support cover (34) and linked to each other with runner (32); Draft tube (31) be shaped as straight-tapered, link to each other with seat ring (37) by flange.
4. intelligent driving device for fan of cooling tower according to claim 1 is characterized in that described intelligent controller (5) comprises electromagnetic flowmeter (501), pressure transducer (502), first temperature transducer (503), second temperature transducer (504), three-temperature sensor (505), humidity transducer (506), control chip (507), soft initiator (508), contactor (509), fus (510) and circuit breaker (511); The signal output part of described electromagnetic flowmeter (501), pressure transducer (502), first temperature transducer (503), second temperature transducer (504), three-temperature sensor (505) and humidity transducer (506) links to each other with the signal input part of control chip (507); The signal output part of control chip (507) links to each other with the signal input part of soft initiator (508) and the signal input part of contactor (509); The end of incoming cables of circuit breaker (511) links to each other with the outlet terminal of electric power incoming line terminal box (L), and the outlet terminal of circuit breaker (511) links to each other with the end of incoming cables of fus (510); The end of incoming cables of the end of incoming cables of soft initiator (508) and contactor (509) links to each other with the outlet terminal of fus (510) jointly; The outlet terminal of the outlet terminal of soft initiator (508) and contactor (509) links to each other with the terminal box of motor (4) jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102422505A CN101713412B (en) | 2009-12-10 | 2009-12-10 | Intelligent driving device for fan of cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102422505A CN101713412B (en) | 2009-12-10 | 2009-12-10 | Intelligent driving device for fan of cooling tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713412A CN101713412A (en) | 2010-05-26 |
| CN101713412B true CN101713412B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102422505A Expired - Fee Related CN101713412B (en) | 2009-12-10 | 2009-12-10 | Intelligent driving device for fan of cooling tower |
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| CN (1) | CN101713412B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865613B (en) * | 2010-06-09 | 2012-09-26 | 中国科学院电工研究所 | Cooling tower integrated energy-saving system based on power synthesizer and control method thereof |
| CN102840079A (en) * | 2011-06-22 | 2012-12-26 | 山东森玛格德节能设备有限公司 | Cylindrical diffused tail water device of hydraulic turbine |
| CN102359575A (en) * | 2011-10-21 | 2012-02-22 | 南京大洋冷却塔股份有限公司 | Speed reducer used for cooling tower |
| CN102748990B (en) * | 2012-04-13 | 2014-11-26 | 重庆堪文节能科技有限公司 | Hydroelectric power balancing driving system of cooling tower fan and control method of system |
| CN102721318A (en) * | 2012-07-02 | 2012-10-10 | 王志成 | Hydraulic ventilation energy-saving cooling tower with intelligent compensation device |
| CN102997707A (en) * | 2012-11-21 | 2013-03-27 | 张育仁 | Water-electricity hybrid power cooling tower |
| ITFI20130234A1 (en) * | 2013-10-10 | 2015-04-11 | Nuovo Pignone Srl | "HYDRAULIC POWER RECOVERY TURBINE WITH INTEGRATED BEARING-CLUTCH HOUSING" |
| CN104632677B (en) * | 2014-12-02 | 2017-02-22 | 巨化集团技术中心 | Energy-saving type cooling tower fan driving system |
| CN106593774A (en) * | 2016-10-10 | 2017-04-26 | 东莞理工学院 | Multi-power hybrid drive mechanism of cooling tower and automatic control method of multi-power hybrid drive mechanism |
| CN108661844B (en) * | 2018-07-28 | 2024-05-28 | 华北水利水电大学 | Hydraulic turbine runner with different-diameter positive and negative guide vanes based on water turbine mode |
| TWI771042B (en) * | 2021-06-07 | 2022-07-11 | 周家慶 | Speed-controlled ratcheting power-saving drivetrain |
| CN115355731B (en) * | 2022-08-19 | 2024-05-03 | 广东工业大学 | Energy-saving control device and control method for cooling tower |
-
2009
- 2009-12-10 CN CN2009102422505A patent/CN101713412B/en not_active Expired - Fee Related
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| CN101713412A (en) | 2010-05-26 |
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