CN207150345U - A kind of ventilation cooling system of hydrogenerator - Google Patents

Abstract

A kind of ventilation cooling system of hydrogenerator, belong to hydro-electric power generating equipment technical field, bubble head and out frame fixed and that motion is set altogether including one, the engine block being fixed in out frame, and be folded in out frame and steep the stator upstream flange between head, the out frame steel plate butt welding shaping, also include at least one set of ventilation assembly and at least one set to keep out the wind component, wherein, multiple ventilation assemblies are fixed on stator upstream flange, and it is concyclic it is all uniformly at intervals；The component that keeps out the wind is detachably mounted to the inside of out frame, is built into stator upstream flange and is connected with ventilation assembly jointly, and single-cycle air feed unit independent each other；With this, by the component that keeps out the wind being arranged on inside out frame, the energy consumption of whole ventilating system is reduced, the confusion of multiple circulating ventilations internally can be avoided, prevents from being vortexed down draught, strengthens the cooling to winding overhang, axial air volume adjustment can effectively be improved, improve the result of ventilating heat dissipation of unit.

Description

A kind of ventilation cooling system of hydrogenerator

Technical field

A kind of ventilation cooling system of hydrogenerator is the utility model is related to, is to be related to one kind to be applied to specifically In scaled bulb tubular hydraulic generator, ventilating and cooling effect can be strengthened, ventilation energy consumption is reduced, prevent the pollutants such as brake dust from entering Enter in the ventilating system in closed self-loopa ventilation routes, belong to hydro-electric power generating equipment technical field.

Background technology

The ventilation cooling system of existing bulb tubular hydraulic generating set is general to be cooled down by the way of scattered closing, Circumferencial direction distribution number Fans being surveyed in stator upstream, cold wind is pressed into stator downstream, Ran Houcong on the inside of rotor field spider Stator and rotor gap returns to the survey of stator upstream, during the heating of the stator and rotor of unit is taken away, cold wind is changed into hot blast, enters back into sky Cooler, hot blast is set to carry out heat exchange with cooling water, hot blast is changed into cold wind, then enters blower fan by closed ventilating duct again again, Formed circulation, exist cooling wind pass through runner it is very long, directly affect by wind to take away the efficiency of heat, its cool down effect Fruit is poor, and the dust pollution thing in operation process easily enters in closed self-loopa ventilation routes, directly affects each member of generator The service life of device.

In the prior art several structure shapes are proposed for the ventilation cooling system of vertical bulb tubular hydraulic generating set Formula, but various problems all be present：1st, the scaled bulb tubular hydraulic generator that CN201320462960.0 is provided concentrates open type to lead to Air cooling system, its bubble head is arranged with is divided into cold wind chamber and the bubble crown flange of hot air cavity by bubble head；In out frame Forebay part be provided with and forebay is partitioned into the front wind screen, rear cold wind deep bead and rear hot blast of cold-hot wind passage kept out the wind Plate；It is provided with inside out frame and out frame inside division is gone out into cold wind chamber and the vertical deep bead and rotor field spider of hot air cavity, By the way that air cooler, blower fan are distinguished into centralized and unified arrangement, the cold wind of unit and hot blast are subjected to synthesis respectively, however, should The ventilation cooling system of kind design, the runner that its cold wind passes through is very long, directly affects by wind to take away the efficiency of heat, its Cooling effect is poor, and more difficult maintenance and maintenance；2nd, a kind of through type cooling through-flow water wheels that CN201520299507.1 is provided Generator ventilator, the hot blast come out from air outlet in tubular-Francis turbine is assembled by induced draft plate, middle ring, is kept out the wind with middle ring Plate is incorporated into cooler and cooled, and the cold air after cooling is drawn into generator amature branch by ventilating duct by skew wind stream machine Frame, deep bead, rotor field spider and rotor deep bead form wind shielding structure, allow generator to form an air with cooling duct The circulatory system, but the generator ventilator adopted the structure, in actual application, its air passes through multiple works After making region, workpiece is carried at work due to wearing the particle brought, directly passes through closed ventilating and cooling cyclic system System, is again introduced into working region, accelerates the abrasion of workpiece, reduce the service life of complete equipment, and exist larger Potential safety hazard.

Therefore, ventilating and cooling effect can be strengthened by needing one kind badly, reduce the energy consumption of ventilation, prevent the pollutants such as brake dust from entering Enter the ventilation cooling system in closed self-loopa ventilation routes, enough blast can be formed, prevent from being vortexed down draught, strengthen opposing connection The cooling of group end and the axial air volume adjustment of improvement, improve the result of ventilating heat dissipation of unit.

Utility model content

The diameter of bulb tubular hydraulic generating set is small, rotating speed is low, the blast as caused by the elements such as rotor and fan More conventional hydrogenerator it is much lower.The lt/ τ values of generator are again very big, up to 6~7, so the rational design of wind shield device It is particularly important.

In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to provide a kind of ventilation of hydrogenerator Cooling system, ventilating and cooling effect can be strengthened, reduce ventilation energy consumption, prevent the pollutants such as brake dust from leading into closed self-loopa In wind path line, enough blast can be formed, prevent from being vortexed down draught, strengthen the cooling to winding overhang and improve axial air quantity point Cloth, improve the result of ventilating heat dissipation of unit.

For achieving the above object, the technical solution adopted in the utility model is as follows：

A kind of ventilation cooling system of hydrogenerator, including one is fixed and moves the bubble head set and stator altogether Seat, the engine block being fixed in out frame, and be folded in out frame and steep the stator upstream flange between head, institute The shaping of out frame steel plate butt welding is stated, in addition at least one set of ventilation assembly and at least one set are kept out the wind component, wherein, multiple ventilations Component is fixed on stator upstream flange, and it is concyclic it is all uniformly at intervals；The component that keeps out the wind is detachably mounted to out frame Inside, it is built into stator upstream flange and is connected with ventilation assembly jointly, and single-cycle air feed unit independent each other； With this, by the component that keeps out the wind being arranged on inside out frame, the single-cycle air feed list built together with stator upstream flange Member, the cooling stroke of air is shortened, avoids the waste of heat-exchange power, enhances ventilating and cooling effect, reduced whole The energy consumption of ventilating system, and due to that independently of one another, while enough blast are formed, can be avoided multiple between vent passages The confusion of circulating ventilation internally, prevent from being vortexed down draught, strengthen the cooling to winding overhang, can effectively improve axial air quantity Distribution, improve the result of ventilating heat dissipation of unit.

Preferably, in order to lift the effect of ventilation and heat, the concyclic all distributions of axis of the ventilation assembly along out frame.

Preferably, in order to simplify the arrangement of connecting pipe, pipeline space-consuming, two ventilation assembly compositions one are optimized Ventilating and cooling unit, axis of the ventilating and cooling unit along out frame, angle are 60 ° uniform.

Preferably, in order to reduce the space-consuming of ventilation cooling system, consolidate inside ventilation assembly through stator upstream flange The fixed inner chamber towards big gun head, which extends, to be fixed, and with the setting of the connects with the internal cavities of out frame.

Preferably, ventilation assembly includes cooler, cooler ventilation duct, blower ventilation pipe and blower fan, cooler and blower fan It is fixed on stator upstream flange, and is spaced apart；Cooler ventilation duct and blower ventilation pipe clamp be located at cooler and blower fan it Between, and seal the setting of connection therewith respectively.

Preferably, the cooler is through being fixed on stator upstream flange, and the internal cavities towards out frame extend Set；The sealing of cooler ventilation duct and cooler connect fixation, assembling on the ring flat-plate of out frame, blower ventilation pipe and Blower fan connection fix, the setting that cooler ventilation duct connects with the blower ventilation seal of tube, by cooler, cooler ventilation duct, Blower ventilation pipe and blower fan form a cycling element, increase circulation blast using blower fan, hot and cold wind is carried out using cooler Heat exchange, form one it is recyclable, it is possible to provide the cooling unit of local ventilation cooling.

Preferably, cooler is aerial cooler, further, for the ease of overhauling and safeguarding, reduces use cost, on It is copper-tube aluminium chip aerial cooler to state cooler.

Preferably, the component that keeps out the wind includes brake deep bead, circular deep bead, access panel and main deep bead, wherein, system Dynamic device deep bead and circular deep bead and the fixation of stator upstream flange one, and the setting moved altogether；Access panel is fixed on On stator upstream flange, and with the opposed opposite side for being arranged on stator upstream flange of ventilation assembly；Main deep bead and stator The setting of support coaxial line, and the entirety sealed is connected into access panel, with this, pass through stator upstream flange, braking Structure is easy to cooling air to enter jointly for device deep bead, circular deep bead, out frame side plate, access panel and main shaft deep bead Internal die cavity, and the hot-air with heat can be completely cut off, the single-cycle cold air channel of cooling air is realized, without heat-exchange power Waste；Using the reasonable Arrangement between deep bead, strengthen the ventilating and cooling effect of unit；Brake deep bead is utilized simultaneously Isolation design, prevents the pollutants such as brake dust from entering in ventilation routes, caused unit pollution, extends making for whole unit With the life-span, prevent because dust or particle enter inside generating set the potential safety hazard brought.

Preferably, brake deep bead and circular deep bead are fixed on stator upstream flange, and are set up separately in cooler The setting of all side seals, avoid forming cooling circuit in all sides of cooler.

Preferably, in order to avoid blower fan is fixed on stator in the gap that operation process, its firm banking occur, access panel On support, and the arrangement corresponding with blower fan.

Compared with prior art, the ventilation cooling system of a kind of hydrogenerator provided by the utility model, passes through cooling Device, cooler ventilation duct, blower ventilation pipe and blower fan form a cycling element, and the heat that hot and cold wind is carried out using cooler is handed over Change, form one it is recyclable, it is possible to provide the cooling unit of local ventilation cooling；Due to independent of one another between vent passages, While forming enough blast, the confusion of multiple circulating ventilations internally can be avoided, prevents from being vortexed down draught, strengthens to winding It the cooling of end, can effectively improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit；Pass through stator upper reaches method Structure is easy to cool down jointly for orchid, brake deep bead, circular deep bead, out frame side plate, access panel and main shaft deep bead Air enters internal die cavity, and can completely cut off the hot-air with heat, realizes the single-cycle cold air channel of cooling air, without heat The waste of positive energy exchange；Using the reasonable Arrangement between deep bead, strengthen the ventilating and cooling effect of unit；Utilize brake simultaneously The isolation design of deep bead, prevents the pollutants such as brake dust from entering in ventilation routes, caused unit pollution, extends whole The service life of unit, prevent because dust or particle enter inside generating set the potential safety hazard brought.

Brief description of the drawings

Fig. 1 is the structural representation of the preferred embodiment of scaled bulb tubular hydraulic generator provided by the utility model；

Fig. 2 is the structural representation of another preferred embodiment of scaled bulb tubular hydraulic generator provided by the utility model Figure；

Fig. 3 is the structural representation of the preferred embodiment of hydrogenerator provided by the utility model；

Fig. 4 is the structural representation of the ventilation assembly of hydrogenerator provided by the utility model；

Fig. 5 is the structural representation of the component that keeps out the wind of hydrogenerator provided by the utility model；

Fig. 6 is the structural representation of the excitation component of hydrogenerator provided by the utility model；

Fig. 7 is the structure enlargement diagram of the excitation component of hydrogenerator provided by the utility model；

Fig. 8 is the structural representation of the brake assemblies of hydrogenerator provided by the utility model；

Fig. 9 is the structure enlargement diagram of the brake assemblies of hydrogenerator provided by the utility model.

Embodiment

The utility model is made further in detail, intactly to illustrate with reference to embodiment and accompanying drawing.

For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.

As depicted in figs. 1 and 2, it is a kind of preferred reality of the ventilation cooling system of hydrogenerator provided by the utility model The structural representation of mode is applied, the ventilation cooling system can strengthen ventilating and cooling effect, reduce ventilation energy consumption, prevent brake dust The ventilation cooling system entered Deng pollutant in closed self-loopa ventilation routes, can form enough blast, prevent vortex from falling Wind, strengthen the cooling to winding overhang and improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit.It is a kind of preferably real Apply in mode, as shown in figure 1, the ventilation cooling system includes：One is fixed and moves the bubble first 10 and out frame set altogether 20, the engine block being fixed in out frame 20, and the stator upstream being folded between out frame 20 and bubble first 10 Flange 21, in addition at least one set of ventilation assembly 30 and at least one set are kept out the wind component 40, wherein, multiple ventilation assemblies 30 are fixed on On stator upstream flange 21, and it is concyclic it is all uniformly at intervals；The component 40 that keeps out the wind is detachably mounted to the inside of out frame 20, It is built into stator upstream flange 21 and is connected with ventilation assembly 30 jointly, and single-cycle air feed unit independent each other； With this, by the component 40 that keeps out the wind being arranged on inside out frame 20, single-cycle air feed that sub- upstream flange 21 is built together Unit, the cooling stroke of air is shortened, avoids the waste of heat-exchange power, enhances ventilating and cooling effect, is reduced whole The energy consumption of individual ventilating system, and due to that independently of one another, while enough blast are formed, can be avoided more between vent passages The confusion of individual circulating ventilation internally, prevent from being vortexed down draught, strengthen the cooling to winding overhang, can effectively improve axial wind Amount distribution, improve the result of ventilating heat dissipation of unit.

Out frame 20 can be various appropriate structures, and usually steel plate butt welding is molded, and is whole scaled bulb tubular water Turbine generator group provides the various load that enough rigidity is come during Inhaul operation.

Preferably, in order to lift the effect of ventilation and heat, axis of the ventilation assembly 30 along out frame 20 is concyclic all to be divided Cloth；Further, in order to simplify the arrangement of connecting pipe, pipeline space-consuming, two ventilations of the composition of ventilation assembly 30 one are optimized Cooling unit；Further, the axis of the ventilating and cooling unit along out frame 20, angle are 60 ° uniform.

In order to reduce the space-consuming of ventilation cooling system, it is preferable that as shown in figure 1, the inside of ventilation assembly 30 is through fixed Sub- upstream flange 21 towards bubble first 10 inner chamber extend fix, and with the setting of the connects with the internal cavities of out frame 20.

Ventilation assembly 30 can be various appropriate structures, be generally welded by panel and brace rod, so as to foot Enough rigidity loads and born uncertain position load, it is preferable that as shown in Figure 3 and Figure 4, including cooler 31, cooling Device ventilation duct 32, blower ventilation pipe 33 and blower fan 34, cooler 31 and blower fan 34 are fixed on stator upstream flange 21, and are spaced Distribution, cooler ventilation duct 32 and blower ventilation pipe 33 are folded between cooler 31 and blower fan 34, and sealing connects therewith respectively Logical setting.Specifically, the cooler 31 is through being fixed on stator upstream flange 21, towards the internal cavities of out frame 20 The setting of extension；Cooler ventilation duct 32 connects fixation with the sealing of cooler 31, and blower fan 34 is arranged on stator upstream flange 21, Blower ventilation pipe 33 connects fixation with blower fan 34, and cooler ventilation duct 32 seals the setting connected with blower ventilation pipe 33.With this, One cycling element is formed by cooler, cooler ventilation duct, blower ventilation pipe and blower fan, increases circulated air using blower fan Pressure, the heat exchange of hot and cold wind is carried out using cooler, form one it is recyclable, it is possible to provide the cooling list of local ventilation cooling Member.

Preferably, above-mentioned cooler 31 is aerial cooler；Further, for the ease of overhauling and safeguarding, reduce and use Cost, above-mentioned cooler 31 are lacing film expansion-joint type aerial cooler.

In summary, the ventilation assembly provided in the utility model disclosed embodiment, divulged information by cooler, cooler Pipe, blower ventilation pipe and blower fan form a cycling element, and the heat exchange of hot and cold wind is carried out using cooler, and forming one can Circulation, it is possible to provide the cooling unit of local ventilation cooling.

The component 40 that keeps out the wind being welded by panel and brace rod can be various appropriate structures, it is preferable that such as Fig. 3 and Shown in Fig. 5, including brake deep bead 41, circular deep bead 42, access panel 43 and main deep bead 44, wherein, brake gear Aerofoil 41 and circular deep bead 42 and the fixation of the one of stator upstream flange 21, and the setting moved altogether；Access panel 43 is fixed On stator upstream flange 21, and with the opposed opposite side for being arranged on stator upstream flange 21 of ventilation assembly 30；Master is kept out the wind The setting of plate 44 and the coaxial line of out frame 20, and the entirety sealed is connected into access panel 43, with this, pass through stator Upstream flange, brake deep bead, circular deep bead, out frame side plate, access panel and main shaft deep bead are built just jointly Enter internal die cavity in cooling air, and the hot-air with heat can be completely cut off, realize the single-cycle cold air channel of cooling air, There is no the waste of heat-exchange power；Using the reasonable Arrangement between deep bead, strengthen the ventilating and cooling effect of unit；Utilize simultaneously The isolation design of brake deep bead, prevents the pollutants such as brake dust from entering in ventilation routes, caused unit pollution, extends The service life of whole unit, prevent because dust or particle enter inside generating set the potential safety hazard brought.

Brake deep bead 41 and circular deep bead 42 are detachably mounted on stator upstream flange 21, and are sealed therewith Connection, with this, can realize that the outer circumferential side of out frame preferably seals.

Further, brake deep bead 41 and circular deep bead 42 are fixed on stator upstream flange 21, and are set up separately The setting of all side seals of cooler 31, the week side of boss in cooler 31 is avoided due to poorly sealed caused cooling circuit.

Preferably, in order to avoid maintenance air vent leaks out, access panel 43 is fixed on stator upstream flange 21, and and wind The corresponding arrangement of machine 34.

Cooling-fan installation principle in preferred embodiment provided by the utility model：

Blower fan produces band air-flow, after blower ventilation pipe and cooler ventilation duct, is provided for the cold air in cooler Blast so that the passage that cooling air with pressure surrounds jointly along brake deep bead and customization upstream flange enters inner chamber, Effective cooling can be realized to winding overhang, by the air with heat inside unit in circular deep bead, access panel Discharged with the collective effect of main deep bead, with this, complete to cool down the single cycle inside unit.

In summary, the ventilation cooling system of scaled bulb tubular hydraulic generator provided by the utility model, cooling is passed through Device, cooler ventilation duct, blower ventilation pipe and blower fan form a cycling element, and the heat that hot and cold wind is carried out using cooler is handed over Change, form one it is recyclable, it is possible to provide the cooling unit of local ventilation cooling；Due to independent of one another between vent passages, While forming enough blast, the confusion of multiple circulating ventilations internally can be avoided, prevents from being vortexed down draught, strengthens to winding It the cooling of end, can effectively improve axial air volume adjustment, improve the result of ventilating heat dissipation of unit；Pass through stator upper reaches method Structure is easy to cool down jointly for orchid, brake deep bead, circular deep bead, out frame side plate, access panel and main shaft deep bead Air enters internal die cavity, and can completely cut off the hot-air with heat, realizes the single-cycle cold air channel of cooling air, without heat The waste of positive energy exchange；Using the reasonable Arrangement between deep bead, strengthen the ventilating and cooling effect of unit；Utilize brake simultaneously The isolation design of deep bead, prevents the pollutants such as brake dust from entering in ventilation routes, caused unit pollution, extends whole The service life of unit, prevent because dust or particle enter inside generating set the potential safety hazard brought.

On the basis of above-described embodiment, in a kind of specific embodiment, the generator sheet that is fixed in out frame 20 Body also includes excitation component 50, the setting of the excitation component 50 and the coaxial line of out frame 20；Pass through send external power source Electric energy is powered by IGCT to excitation component, is whole main generator body after excitation component produces corresponding exciting current Exciting current is provided, is then whole scaled bulb tubular hydraulic generator excitation, using the scaled bulb tubular water of the excitation component Turbine generator good voltage waveform, aberration rate is small, and can solve the problem that the pollution of carbon dust and copper powder to machine winding, improves the exhausted of motor The edge life-span；It can realize that brushless double frequency generates electricity, can also realize brushless variable-frequency power generation.

Specifically, as shown in Figure 6 and Figure 7, excitation component 50 includes generator unit stator 51, generator amature 52, exciter Stator 53 and exciter rotor 54, wherein, generator unit stator 51 is mounted in the coaxial setting in inside of out frame 20, and with it is fixed The arrangement of the coaxial line of handset seat 20；Exciter stator 53 is fixed on out frame 20 by support, and with being fixed on generator The setting that the arrangement exciter stator 53 of exciter rotor 54 coaxially on rotor 52 connects with external power supply, exciter rotor 54 Connected with generator amature 52, with this, the electric energy that exciter stator is sent by external power source supplies power for by IGCT, encourages Magnetomechanical rotor produces corresponding exciting current, potential that the exciter rotor generates, electric current, provides and encourages for generator amature Magnetic, be formed as the excitation component of whole bulb tubular hydraulic generating set, using the bulb through-flow type hydro-turbo of the excitation component Generator voltage waveform is good, and aberration rate is small, and can solve the problem that the pollution of carbon dust and copper powder to machine winding, improves the insulation of motor Life-span.

Further, the exciter stator 53 is AC excitation machine stator, and the exciter rotor 54 is AC excitation Machine rotor；Preferably, armature winding is on exciter rotor 54, and Exciting Windings for Transverse Differential Protection is on stator 53, exciter rotor 54 and excitation Machine stator 53 is built into the Energizing unit of turbine-generator units；With this, by external power supply, to the excitation on exciter stator Winding provides excitation, and its exciter rotor armature winding sends alternating current under electromagnetic induction；

Preferably, generator unit stator 51 and generator amature 52 are configured to the electric power output unit of turbine-generator units, Wherein, main generator armature winding is in generator unit stator 51, and the Exciting Windings for Transverse Differential Protection of main generator is on generator amature 52.

For the ease of during electric motor starting and again synchronizing, control start loop is open-minded, has motor full symmetric Asynchronous driving torque, in addition to be fixed on inside out frame 20, the rotating rectifier 55 connected with excitation machine electric appliance.

Preferably, in order to optimize the space-consuming of excitation component, along the radial direction of out frame 20, away from the axle of out frame 20 The direction of line, the arrangement of rotating rectifier 55, exciter rotor 54 and the order of exciter stator 53；Further, along stator The radial direction of seat 20, the direction away from out frame 20 axis, rotating rectifier 55, exciter rotor 54 and exciter stator 53 according to Secondary arrangement.

The operation principle of above-mentioned excitation component：

The exciter part of scaled bulb tubular hydraulic generator is made up of exciter rotor 54 and exciter stator 53, is passed through After external power supply provides excitation for whole scaled bulb tubular hydraulic generator excitation, the armature group of exciter rotor 54 sends friendship Stream electricity, by being powered after over commutation to the Exciting Windings for Transverse Differential Protection of main generator rotor 52, so that the armature of main generator unit stator 51 Winding induces required alternating current.

In summary, powered by the electric energy for sending external power source by IGCT to exciter stator, exciter turns Son produces corresponding exciting current, and DC current is exported after rotating rectifier rectification and is powered for generator amature, generator It is whole bulb-generator excitation that rotor, which produces corresponding exciting current, using the scaled bulb tubular water of the excitation component Turbine generator good voltage waveform, aberration rate is small, and can solve the problem that the pollution of carbon dust and copper powder to machine winding, improves the exhausted of motor The edge life-span；It can realize that brushless double frequency generates electricity, can also realize brushless variable-frequency power generation.Two-frequency variable-frequency brush-free synchronous electric generator can make double frequency Generate electricity and variable-frequency power generation realizes non-brushing, eliminate slip-ring brush, no-spark High-frequency Interference, no slip ring and carbon brush wear problem； Power frequency and voltage of intermediate frequency are not interfere with each other during generating, and voltage waveform lower edge is good, and power supply quality is excellent；Generator reliability is high, dimension Shield is simple, easily realizes the intelligent automation control in power station.

As another preferable scheme of the present embodiment, for live faster installation, and whole scaled bulb tubular The maintenance of generator, as shown in Figure 8 and Figure 9, in addition to it is detachably mounted on stator upstream flange 21, towards generator sheet The extended brake assemblies 60 of body, by setting dismountable brake assemblies, simplify the structure of whole generating set, save Installing space, by removably setting, optimizes mounting process, improves field erected efficiency, and be easy to follow-up Maintenance and replacing, reduce use cost.

Preferably, brake assemblies 60 are folded between bubble first 10 and out frame 20, along the axially extending of out frame 20, With this, cleverly install, overhaul and safeguard using big gun head inner space, convenient and quick realize.

Brake assemblies 60 can be various appropriate structures, be preferably carried out in the utility model in mode, including braking Device 61 and brake backing plate 62, wherein, brake backing plate 62 runs through stator upstream flange 21, and dismountable fixed therewith；System Dynamic device 61 is fixed through brake backing plate 62, and relative to the adjustable setting in the position of brake backing plate 62；Further, in order to Improve stationarity and reliability of the brake in braking procedure, the setting of brake 61 and the coaxial line of brake backing plate 62；With This, by the brake backing plate being detachably fixed, and relative to the adjustable brake in brake backing plate position, is both easy to brake Installation, the debugging of device, are easy to follow-up maintenance and maintenance, can save installing space, improve operating efficiency, improve generating again The braking ability of machine unit, and have the advantages that braking ability is stable, installation is convenient and cost is cheap.

Alternatively, in order to convenient and quickly realize the dismounting of brake, brake assemblies 60 also include being used for dismounting braking The dismantling device 63 of device 61, the dismantling device 63 are removably fixed with brake backing plate 62, and drivable with brake 61 Connection, with this, it is necessary to install or dismantle brake, after only need to fixing brake backing plate by dismantling device, cooperation driving is Dismantled and assembled brake, so as to simplify the technique of the installation of brake and debugging, and with installation facility and low cost and other advantages.

There is provided in the utility model preferred embodiment in brake system, pass through the removable of brake and brake backing plate Control is unloaded, is easily installed installation of the personnel in outside, installation brake need to be carried out by small space inside unit by solving tradition Difficulty, and be easy to maintenance change；Simultaneously in view of the weight of brake and brake backing plate, brake dismounting has dexterously been set Instrument, great convenience is provided in installation process for installation personnel and is easy to adjustment installation.

Now the installation method to brake is easy to for example, by the detachable control of brake and brake backing plate Installation personnel is in the installation of outside, and solving tradition need to install the difficulty of brake by small space inside unit, and easily Changed in maintenance, the installation method of wherein brake comprises the following steps：

Step A：Brake 61 is fixed on brake backing plate 62

Step B：Brake dismantling device 63 is fixed on brake backing plate 62

Step C：Dismantling device 63 is lifted by crane by driving a vehicle

Step D：By controlling dismantling device 63 that brake 61 and brake backing plate 62 are fixed on out frame 20

Step E：Dismantling device 63 is removed, completes the installation of brake.

In summary, it is brake is independent into dismountable part, optimize transmission scaled bulb tubular hydraulic generator system The structure of dynamic device, by setting dismountable brake assemblies, simplifies the structure of whole generating set, saves installing space, And by removably setting, mounting process is optimized, field erected efficiency is improved, and be easy to follow-up maintenance and more Change, reduce use cost.

Finally be necessary described herein be：Above example is served only for making further the technical solution of the utility model Explain, it is impossible to be interpreted as the limitation to scope of protection of the utility model, those skilled in the art is new according to this practicality Some nonessential modifications and adaptations that the above of type is made belong to the scope of protection of the utility model.

Claims (10)

1. a kind of ventilation cooling system of hydrogenerator, including one is fixed and moves the bubble head (10) set and stator altogether Seat (20), the engine block being fixed in out frame (20), and be folded between out frame (20) and bubble head (10) Stator upstream flange (21), out frame (20) steel plate butt welding shaping, it is characterised in that also include at least one set of ventilation Component (30) and at least one set are kept out the wind component (40), wherein, multiple ventilation assemblies (30) are fixed on stator upstream flange (21), And it is concyclic it is all uniformly at intervals；The component (40) that keeps out the wind is detachably mounted to the inside of out frame (20), with stator upper reaches method Blue (21) are built into jointly to be connected with ventilation assembly (30), and single-cycle air feed unit independent each other.

2. ventilation cooling system according to claim 1, it is characterised in that ventilation assembly (30) is along out frame (20) The concyclic all distributions of axis.

3. ventilation cooling system according to claim 1 or 2, it is characterised in that two ventilation assembly (30) compositions One ventilating and cooling unit, axis of the ventilating and cooling unit along out frame (20), angle are 60 ° uniform.

4. ventilation cooling system according to claim 3, it is characterised in that run through stator upstream inside ventilation assembly (30) Flange (21) towards bubble head (10) inner chamber extend fix, and with the setting of the connects with the internal cavities of out frame (20).

5. ventilation cooling system according to claim 1, it is characterised in that ventilation assembly (30) include cooler (31), Cooler ventilation duct (32), blower ventilation pipe (33) and blower fan (34), cooler (31) and blower fan (34) are fixed on stator upstream On flange (21), and it is spaced apart；Cooler ventilation duct (32) and blower ventilation pipe (33) are folded in cooler (31) and blower fan (34) between, and the setting of connection is sealed therewith respectively.

6. ventilation cooling system according to claim 5, it is characterised in that the cooler (31), which is run through, is fixed on stator On upstream flange (21), towards the setting of the internal cavities extension of out frame (20)；Cooler ventilation duct (32) and cooler (31) sealing connection is fixed, and blower fan (34) is arranged on stator upstream flange (21), and blower ventilation pipe (33) and blower fan (34) are even Setting logical to fix, that cooler ventilation duct (32) connects with blower ventilation pipe (33) sealing.

7. the ventilation cooling system according to claim 5 or 6, it is characterised in that cooler (31) is aerial cooler.

8. ventilation cooling system according to claim 5, it is characterised in that the component that keeps out the wind (40) includes brake deep bead (41), circular deep bead (42), access panel (43) and main deep bead (44), wherein, brake deep bead (41) and circular gear Aerofoil (42) and the fixation of stator upstream flange (21) one, and the setting moved altogether；Access panel (43) is fixed on stator Swim on flange (21), and with the opposed opposite side for being arranged on stator upstream flange (21) of ventilation assembly (30)；Main deep bead (44) with the setting of out frame (20) coaxial line, and the entirety of a sealing is connected into access panel (43).

9. ventilation cooling system according to claim 8, it is characterised in that brake deep bead (41) and circular deep bead (42) it is fixed on stator upstream flange (21), and sets up the setting in all side seals of cooler (31) separately.

10. ventilation cooling system according to claim 8 or claim 9, it is characterised in that access panel (43) is fixed on stator Swim on flange (21), and the arrangement corresponding with blower fan (34).