CN205014890U - Outer belt cleaning device of tower of air cooling radiator - Google Patents

Abstract

The utility model provides an outer belt cleaning device of tower of air cooling radiator, includes the truss, washs frame, wiper mechanism, walks capable motor and traction motor, and its technical essential is: two to five of arranging of vertical orientation that the wiper mechanism set up including the level that lies in the radiator side on rinsing the frame of fixing rinse the tube bank, the setting is at the end pipe that washs the frame opposite side, connect the high -pressure rubber pipe that rinses the tube bank and hold the pipe, wash the tube bank and go up ten high pressure nozzles of symmetrical arrangement, the efflux of high pressure nozzle is the cone, the apex angle of cone is less than the contained angle between high pressure nozzle and the shutter, the efflux comprises with the root segment original section, the area that adjacent high pressure nozzle efflux covered just overlaps, another high pressure nozzle perpendicular to rinses the tube bank, the original section and the root segment length sum of high pressure nozzle are greater than high pressure nozzle and distance within a definite time. Fundamentally has solved poor, the fragile shutter of current power station radiator belt cleaning device cleaning performance, has used inconvenient, the low scheduling problem of cleaning efficiency.

Description

The outer cleaning device of tower of air cooling heat radiator

Technical field

The utility model relates to mechanical engineering field, particularly relates to the cleaning of heat exchange or heat transfer pipe inwall or outer surface, and be a kind of outer cleaning device of tower of air cooling heat radiator specifically, its tower being mainly applicable to indirect air cooling formula power station air cooling radiator cleans outward.

Background technology

At present, mainly contain at the air cooling system of power plant application: 1. direct air cooling system (ACC); 2. the indirect air cooling system of surface condenser is adopted; 3. the indirect air cooling system of direct-contact type condenser (also claiming Heller type indirect air cooling system) is adopted.Wherein, adopt the indirect air cooling system of direct-contact type condenser, primarily of injection type condenser and the air cooling tower formation that good fortune brother type radiator is housed, the cooling water in system enters condenser and directly mixes with the weary gas of steam turbine and make its condensation.The cooling water overwhelming majority after being heated delivers to dry Cooling heat radiator by circulating pump, delivers to injection type condenser again and enter next circulation after cooling with cross-ventilation heat exchange.Wherein, good fortune brother type radiator (also claiming aluminum pipe aluminium flake radiator) is the capital equipment of Heller type indirect air cooling system, comprises some radiator cooling studs perpendicular to ground.Two adjacent cooling studs form a cooling triangle with 60 ° of angles; leg-of-mutton other while install shutter; control intake, and protect radiator from the interference of the factors such as external pollen, floating dust, insect, flying bird, eliminate the potential safety hazard in running.Inevitably, because the continuous accumulation of spot causes the radiating effect cooling triangle to reduce after Long-Time Service, need periodic cleaning for this reason.

Existing cleaning device such as Authorization Notice No. is the utility model patent of CN101672600B; disclose " a kind of automatic cleaning device of indirect air cooler for power station "; it comprises wiper mechanism; technical essential is: in tower, be provided with closed ring track on aerial cooler position, be provided with the walking truss of a band travel driving unit in orbit; This truss is provided with the vertical frame moved horizontally, truss is also provided with the guide and limit mechanism of vertical frame; Vertical frame is provided with a vertical moving guide rail, vertical moving guide rail is disposed with vertical travelling mechanism, vertical driving mechanism; Vertical travelling mechanism is also provided with wiper mechanism, this wiper mechanism comprises at least double cleaning tube bank, the washer jet of distribution in cleaning tube bank, the injection direction of this washer jet is vertical with aerial cooler cleaning surface, and cleaning tube bank is connected with high pressure water generating device by high-pressure hose.Although this technical scheme achieves the function such as vertical cleaning of orbiting, the moving horizontally of truss, wiper mechanism, this wiper mechanism needs repeatedly to pass in and out cooler trigonum to be cleaned, thus causes cleaning efficiency low.

And for overcoming a upper defect, utility model people once designed the utility model application that application publication number is CN103791768A, disclose " a kind of cleaning device of indirect air cooler for power station ", it comprise on the guide rail that is arranged on outside cooler can along the truss of guide rail movement, drive the running mechanism of truss, be arranged on the cleaning framework that can move along truss on truss, be arranged on the haulage gear for driving cleaning framework on truss, be arranged on the wiper mechanism on cleaning framework, running mechanism comprises the running motor being arranged on truss bottom, be arranged on the lower road wheel driven by running motor bottom truss, cleaning framework passes through cleaning framework directive wheel Horizontal limiting on truss, it is characterized in that: described wiper mechanism is arranged on a left side for cleaning framework or/and right side, wiper mechanism comprises some guide rods, some cleanings with nozzle be fixed on guide rod are restrained, be arranged on the cleaning tube bank drive motors on cleaning framework, the output of cleaning tube bank drive motors is provided with gear, guide rod is provided with the tooth bar be meshed with gear.This technical scheme adopts tower outer perpendicular to the cleaning of cooler surface formula, although cleaning tube bank can enter in shutter, shortens the distance between cleaning plane and fin plane, ensure that the advantage that water consumption is low.But still there is following defect in actual applications: for the mentality of designing of this technical scheme, cleaning tube bank must put in shutter completely and just can reach cleaning object.But, for strengthening the stability of radiator structure, setting up in shutter and putting brace and girt, during cleaning, increasing operation easier, may cause during misoperation cleaning tube bank cannot being put in shutter, even by bad for shutter top.In addition, due to the accumulation in vertical direction of radiator structure amount of elastic deformation, also can produce certain error to the location of cleaning framework, add cleaning difficulty.

Utility model content

The purpose of this utility model is to provide a kind of outer cleaning device of tower of air cooling heat radiator, fundamentally solves poor, the fragile shutter of existing power station air cooling cleaning device for radiator cleaning performance, uses inconvenient, the low inferior problem of cleaning efficiency.

The technical scheme that the utility model adopts is: the outer cleaning device of tower of this air cooling heat radiator comprises the truss between upper rail and lower guideway, by the spacing removable cleaning framework on truss of guiding mechanism, be assemblied in the wiper mechanism on cleaning framework, be positioned at running motor and the traction electric machine of truss bottom, truss top arranges truss upper support frame, in truss upper support frame, fixed pulley assembly is set, cleaning framework is provided with guiding piece, traction electric machine drives guiding piece to drive cleaning framework motion by fixed pulley assembly, its technical essential is: described wiper mechanism comprises two to the five cleaning tube banks being positioned at the horizontally disposed vertical direction arrangement of air cooling heat radiator side be fixed on cleaning framework, be arranged on the end pipe of cleaning framework opposite side, connect cleaning tube bank and the high-pressure rubber pipe holding pipe, wash in tube bank and be arranged symmetrically with ten nozzles, the jet of nozzle is cone, the drift angle of cone is less than the angle between nozzle and shutter, jet is made up of original segment and basic segment, four, the outside nozzle of every side is 45 ° ~ 75 ° with cleaning the angle of restraining, the area that adjacent nozzle jet covers is just overlapping, another nozzle is perpendicular to cleaning tube bank, the original segment of nozzle and basic segment length sum be greater than nozzle and between distance, the radiating surface of radiator is divided into five equal portions, the wherein area of the corresponding radiating surface 3/5 of the original segment of outermost four nozzles in one side, the corresponding 2/5 other area of basic segment of a nozzle of inner side.

Wiper mechanism eliminates original guide rod and guide rod drive motors, simplifies the quantity of cleaning tube bank, not only simplifies the structure, reduce manufacturing cost, and reduce the load of cleaning framework, and safety is smooth more to make its running.Cleaning process puts in shutter without the need to cleaning tube bank, avoids tube bank and the collision of shutter, simplifies operating procedure, improve cleaning efficiency, reduce maintenance cost, extend service life.Nozzle ten of being arranged symmetrically with, four, the outside nozzle of every side is 45 ° ~ 75 ° with cleaning the angle of restraining, corner dimension is determined with the factor such as distance, nozzle range of radiator according to cleaning tube bank, another nozzle perpendicular to cleaning tube bank, thus ensures air cooling radiating fin (referring to one of them radiating surface of cooling stud) to cover comprehensively.Further, the original segment of nozzle and basic segment length sum should be greater than the distance between nozzle and radiating fin, avoid adopting divergent section cleaning.The jet of nozzle is cone, and the drift angle of cone is less than the angle between nozzle and shutter, avoids jet to beat and waste water source outside shutter.For reaching best cleaning performance, the radiating fin of both sides is respectively divided into five equal portions, the wherein area of the original segment correspondence 3/5 of outermost four nozzles in one side, the corresponding 2/5 other area of basic segment of a nozzle of inner side, after pressure is accumulated by original segment by four nozzles, current are pressed to flight tip, under the cooperation of interior side nozzle basic segment, radiator is cleaned up, saved water consumption simultaneously.Utilize highdensity high-pressure water shot a fluid stream directly to spray, huge hitting power high-efficiency washing object can be produced, thus reach the object of cleaning.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is main TV structure schematic diagram of the present utility model;

Fig. 2 is side-looking structural representation of the present utility model;

Fig. 3 is plan structure schematic diagram of the present utility model;

Fig. 4 is operation principle schematic diagram of the present utility model.

In figure, sequence number illustrates: 1 lower guideway, 2 lower support pulley assemblies, 3 running motors, 4 traction electric machines, 5 cleaning frameworks, 6 high-pressure rubber pipes, 7 truss ,8 shutters, 9 fixed pulley assemblies, 10 upper guide are to pulley assembly, 11 upper rails, 12 truss upper support frames, 13 guiding pieces, 14 bolt assemblies, 15 reels, 16 transposition positioning components ,17 end pipes, 18 guiding mechanisms, 19 cleaning tube banks, 20 high pressure nozzles.

Detailed description of the invention

Concrete structure of the present utility model is described in detail according to Fig. 1 ~ 4.The outer cleaning device of the tower of this air cooling heat radiator comprise on the guide rail that is arranged on outside cooler can along the truss 7 of guide rail movement, drive the running mechanism of truss 7, the cleaning framework 5 that can move along truss 7 be arranged on truss 7, be arranged on truss 7 for driving the haulage gear of cleaning framework 5, the wiper mechanism be arranged on cleaning framework 5.Wherein, guide rail comprises upper rail 11 and lower guideway 1, and truss 7 comprises the truss upper support frame 12, middle part truss, the truss lower support frame that are connected successively by bolt assembly 14.Truss upper support frame is arranged between middle part truss and upper rail 11, and truss lower support frame is arranged between middle part truss and lower guideway 1.Running mechanism comprises the running motor 3 be arranged on truss lower support frame, be arranged on the lower support pulley assembly 2 driven by running motor 3 bottom truss lower support frame, the upper guide that matches with upper rail 11 is to parts such as pulley assemblies 10.Truss top will, as directive wheel (being clipped between upper road wheel by upper rail), drive whole truss to move by the lower directive wheel driven by running motor 3 of rotating shaft and plane-parallel by rotating shaft perpendicular to the upper road wheel of horizontal plane.Haulage gear comprises the traction electric machine 4 be arranged on truss lower support frame, the fixed pulley assembly 9 being arranged on truss top, the guiding piece 13 be fixed on cleaning framework 5.Truss lower support frame is provided with the traction support with plane-parallel, and traction electric machine 4 is fixed on traction support.The output of traction electric machine 4 is provided with traction output shaft, traction output shaft is fixed with reel 15 by flange, reel 15 is provided with pull rope (as hawser), pull rope end is connected with guiding piece 13 bottom, guiding piece 13 top is also connected with pull rope and forms " Y-shaped structure ", two pull ropes on " Y-shaped structure " top are connected with cleaning framework 5 through after traction directive wheel, and the cleaning framework that rotarily drives namely by reel 15 moves both vertically.Cleaning framework by guiding mechanism 18(as fixed pulley group) Horizontal limiting on truss, move both vertically under the driving of haulage gear.For preventing cleaning framework to move position, truss is also provided with vertical positioning element (as travel switch).Wiper mechanism is arranged on the air cooling heat radiator side on cleaning framework, and some cleaning tube bank 19(that wiper mechanism comprises the horizontally disposed vertical direction arrangement be fixed on cleaning framework are preferably two), the some high pressure nozzles 20 be arranged in cleaning tube bank 19.Arrange end pipe 17 at the cleaning framework other end, end pipe 17 restrain with cleaning by high-pressure rubber pipe 6 and is connected, the water supply of guarantee high pressure nozzle.The area that adjacent high pressure nozzle 20 jet covers is just overlapping, thus reduces water consumption.For convenience of using, cleaning framework is also provided with transposition positioning component 16.Owing to have employed high pressure nozzle, the cleaning fluid jet of high pressure nozzle directly cleans spreader surface by shutter 8.

The jet of high pressure nozzle is divided into three sections: 1) original segment, and length L1 represents, this section of jet dynamic pressure force value is vertically constant, and namely the dynamic pressure at original segment jet tip and the dynamic pressure of jet expansion are almost identical.Quality is very closely knit, does not mix mutually with air, and therefore the hitting power of this section is the strongest, is mainly used in cleaning hard foulant; 2) basic segment, length L2 represents, this section of jet starts to mix mutually with air, can define hole and eddy current, and therefore the hitting power of this section is moderate, is applicable to the cleaning of various equipment and material.Along with the lengthening of this segment distance, effective hitting power also declines gradually; 3) divergent section, length L3 represents, this section of jet mixes completely with air, and jet is atomized completely, and surge and effluxvelocity all significantly decline, and without using value, therefore should avoid adopting this section of jet flow cleaning when considering stream distance.Select different high pressure nozzle outlet shapes, different jet flow section shapes can be formed, as pancake fan-shaped high pressure nozzle, circular Solid cone nozzle, annular, the nozzle form such as square, the utility model circular Solid cone nozzle.

Claims (1)

1. the outer cleaning device of the tower of an air cooling heat radiator, comprise the truss between upper rail and lower guideway, by the spacing removable cleaning framework on truss of guiding mechanism, be assemblied in the wiper mechanism on cleaning framework, be positioned at running motor and the traction electric machine of truss bottom, truss top arranges truss upper support frame, in truss upper support frame, fixed pulley assembly is set, cleaning framework is provided with guiding piece, traction electric machine drives guiding piece to drive cleaning framework motion by fixed pulley assembly, it is characterized in that: described wiper mechanism comprises two to the five cleaning tube banks being positioned at the horizontally disposed vertical direction arrangement of heat sink side be fixed on cleaning framework, be arranged on the end pipe of cleaning framework opposite side, connect cleaning tube bank and the high-pressure rubber pipe holding pipe, wash in tube bank and be arranged symmetrically with ten high pressure nozzles, the jet of high pressure nozzle is cone, the drift angle of cone is less than the angle between high pressure nozzle and shutter, jet is made up of original segment and basic segment, four, the outside high pressure nozzle of every side is 45 ° ~ 75 ° with cleaning the angle of restraining, the area that adjacent high pressure nozzle jet covers is just overlapping, another high pressure nozzle is perpendicular to cleaning tube bank, the original segment of high pressure nozzle and basic segment length sum be greater than high pressure nozzle and between distance, the radiating surface of radiator is divided into five equal portions, the wherein area of the corresponding radiating surface 3/5 of the original segment of outermost four high pressure nozzles in one side, the corresponding 2/5 other area of basic segment of a high pressure nozzle of inner side.