CN218669479U - Power plant steam turbine operation heat dissipation mechanism - Google Patents

Abstract

The utility model discloses a power plant steam turbine operation heat dissipation mechanism, which comprises a lower shell, an upper shell and a steam turbine main body arranged between the lower shell and the upper shell, wherein the outer side of the upper shell is fixedly connected with a plurality of cooling fins, and the top of the upper shell is fixedly embedded with a self-cleaning filtering type air cooling heat dissipation mechanism; the self-cleaning filtering type air-cooling heat dissipation mechanism comprises a vertical pipe which is embedded and fixed at the top of the upper shell. The utility model discloses a setting up of stainless steel filter screen can filter the interception to the solid impurity in the gas that gets into, impurity causes the influence to inside in a large number of entering epitheca when preventing to blow the heat dissipation, and drive rotating assembly through two-way antithetical couplet, a rotating shaft, the flabellum, the eccentric wheel, elasticity direction subassembly and the setting of beating the piece of shaking, can beat the shake scarfing cinder to the stainless steel filter screen automatically when blowing the heat dissipation, need not to add in addition and beat and shake actuating equipment, can realize blowing and scarfing cinder work in single drive synchronization, high durability and convenient use, improve the stability of ventilating when using, reduce artifical clearance frequency.

Description

Power plant steam turbine operation heat dissipation mechanism

Technical Field

The utility model relates to a steam turbine auxiliary assembly technical field specifically is a power plant steam turbine operation heat dissipation mechanism.

Background

The steam turbine is also called as a steam turbine engine and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates and does work outwards; the steam turbine is the main equipment of the modern thermal power plant; in the existing steam turbine of the power plant, the temperature generated in the machine is easy to damage the machine under the condition of long-time working time, so that the service life of the machine is greatly reduced, and the stability of the steam turbine is influenced;

to this end, chinese patent with publication No. CN217632589U discloses a power plant steam turbine operation heat dissipation mechanism, including the main part, the main part lower extreme is equipped with the inferior valve that is used for the support, and the upper end is equipped with the epitheca, the inferior valve both ends all are equipped with the cooling tube, and the department is equipped with the water tank that is used for saving the coolant liquid in the middle of the cooling tube outer end, and through the setting of epitheca, the epitheca passes through upper end motor drive to drive everywhere the transmission shaft and rotate, and then accelerate the inside air mobility of device through the flabellum, make the quick department of leading out through the radiating hole of heat in the device, thereby play fine radiating action to the device.

Above-mentioned patent is upper partially through installing motor and flabellum on power plant steam turbine epitheca, realizes inside steam turbine main part heat dissipation of blowing, but this partial forced air cooling heat dissipation still has some not enoughly:

when the fan blades blow air downwards, the top of the fan blades can suck and supplement external air, when the external air enters, because more tiny particle impurities exist in the external air, the phenomenon that a large amount of particle impurities are easy to enter during blowing and heat dissipation is caused, and the internal use stability is influenced (although the technology of filtering the impurities by simply installing the filter screen at the air inlet position is also adopted in the prior art, the outer side of the filter screen is easily blocked and covered by the impurities along with filtering, the ventilation effect is influenced, personnel are required to regularly disassemble and assemble and clean, the mode of regularly disassembling and cleaning wastes time and labor, the cleaning frequency is high, and the fan blades are difficult to continuously keep smooth in ventilation and use); in view of the above, the invention provides a heat dissipation mechanism for operation of a steam turbine of a power plant.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a power plant steam turbine operation heat dissipation mechanism can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat dissipation mechanism for operation of a steam turbine in a power plant comprises a lower shell, an upper shell and a steam turbine main body arranged between the lower shell and the upper shell, wherein a plurality of heat dissipation fins are fixedly connected to the outer side of the upper shell, and a self-cleaning filtering type air-cooling heat dissipation mechanism is fixedly embedded in the top of the upper shell;

the self-cleaning and filtering type air-cooling heat dissipation mechanism comprises a vertical pipe which is embedded and fixed at the top of an upper shell, the bottom end of the vertical pipe extends into the upper shell and is communicated and fixed with a box body with the bottom arranged as an opening, the top end of the vertical pipe is fixedly connected with a rectangular box with the bottom arranged as an opening, air inlet holes are formed in the inner walls of two sides of the rectangular box, two sides of the rectangular box are respectively arranged as inclined planes, and are fixedly provided with obliquely arranged stainless steel filter screens in a threaded manner, and the arranged stainless steel filter screens are used for filtering and intercepting solid impurities in the entering gas;

the inner wall of the top of the rectangular box is fixedly embedded with a square-shaped seat, the top of the square-shaped seat is fixedly provided with a driving motor, an output shaft of the driving motor extends into the square-shaped seat and is fixedly connected with a bidirectional combined driving rotating assembly, the bottom end of the bidirectional combined driving rotating assembly is fixedly connected with two eccentric wheels, the bottom of the bidirectional combined driving rotating assembly is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a plurality of fan blades positioned in the box body, and the bidirectional combined driving rotating assembly is used for driving the rotating shaft to rotate and synchronously driving the two eccentric wheels to rotate in opposite directions;

two equal movable contact elastic guide subassembly of eccentric wheel one side that repels, two elastic guide subassembly one ends that repel extend to respectively in the corresponding inlet port and fixedly connected with strike the shake piece, the shape seat slip cover is established on two elastic guide subassemblies, strikes the shake piece and is located one side that the stainless steel filter screen that corresponds is close to the shape seat and cooperatees with the stainless steel filter screen, and elastic guide subassembly is used for being beaten the shake piece lateral shifting and to its lateral guidance when being driven by the eccentric wheel rotation extrusion.

Preferably, the bidirectional combined-drive rotating assembly comprises a first gear, two second gears and two circular shafts, the top of the first gear is fixedly connected with the bottom end of an output shaft of the driving motor, the bottom of the first gear is fixedly connected with the top end of the rotating shaft, the top ends of the two circular shafts are rotatably connected with the inner wall of the top of the square-shaped seat, the two second gears are respectively fixedly sleeved on the corresponding circular shafts, the first gear is meshed between the two second gears, and the bottom ends of the circular shafts are fixedly connected with one sides, away from the rotating shaft, of the tops of the corresponding eccentric wheels; the first gear, the two second gears and the two circular shafts are matched, the first gear can be driven to rotate when the driving motor is started, so that the rotating shaft and the fan blades can be driven to rotate, the first gear can be used for driving the two second gears to rotate in opposite directions, and the two eccentric wheels can be driven to rotate in opposite directions.

Preferably, the elastic guide assembly comprises L-shaped guide rods, a spring and balls, wherein the repulsive ends of the two L-shaped guide rods are fixedly connected with one sides of the two knocking blocks, the two L-shaped guide rods are slidably sleeved on the two L-shaped guide rods, the two balls are fixedly embedded in the sides of the two L-shaped guide rods, the balls are movably contacted with the outer sides of the corresponding eccentric wheels, and two ends of the spring are fixedly connected with the inner wall of one side of the corresponding L-shaped guide rod, close to the rotating shaft, and the side wall of the clip seat; the two L-shaped guide rods can be driven to reciprocate and move relatively when the two eccentric wheels rotate to circularly extrude the two balls, the two springs are compressed, the two L-shaped guide rods are used for transversely guiding the two knocking blocks, and the two knocking blocks are driven to reciprocate to knock the two stainless steel filter screens to remove slag.

Preferably, install temperature sensor in the epitheca, driving motor's rear side is fixed and electrically connected with the controller, temperature sensor and controller electric connection, and the inboard of epitheca is provided with honeycomb layer and a plurality of venthole.

Preferably, the rotating shaft is positioned in the vertical pipe, the bottom of the fan blade is an air blowing part, and the top of the fan blade is an air inlet part.

Preferably, a rotating hole is formed in the inner wall of the bottom of the square-shaped seat, a supporting bearing is fixedly sleeved in the rotating hole, and an inner ring of the supporting bearing is fixedly sleeved with the outer side of the rotating shaft.

Preferably, rectangular guide holes are formed in the inner walls of the two sides of the clip-shaped seat, and the inner walls of the rectangular guide holes are slidably sleeved with the outer sides of the corresponding L-shaped guide rods.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the steam turbine operation heat dissipation mechanism of the power plant, solid impurities in entering gas are filtered and intercepted through the arranged stainless steel filter screen, and the influence on the inside caused by the fact that a large amount of impurities enter the upper shell during blowing heat dissipation is prevented;

2. this power plant steam turbine operation heat dissipation mechanism, driving motor through setting up, two-way antithetical couplet drives rotating assembly, the apparatus further comprises a rotating shaft, the flabellum, the eccentric wheel, elasticity direction subassembly and strike the cooperation of piece, can blow the heat dissipation in the epitheca, and can be automatic when the heat dissipation of blowing to two stainless steel filter screens reciprocal continuous strikes the scarfing cinder, realize that single drive is bloied in step and scarfing cinder work, the mode of striking the scarfing cinder is beaten in automatic synchronization when utilizing the heat dissipation of blowing, the stability of ventilating when improving the use, reduce artifical clearance frequency.

The utility model discloses a setting up of stainless steel filter screen can filter the interception to the solid impurity in the gas that gets into, impurity causes the influence to inside in a large number of entering epitheca when preventing to blow the heat dissipation, and drive rotating assembly through two-way antithetical couplet, a rotating shaft, the flabellum, the eccentric wheel, elasticity direction subassembly and the setting of beating the piece of shaking, can beat the shake scarfing cinder to the stainless steel filter screen automatically when blowing the heat dissipation, need not to add in addition and beat and shake actuating equipment, can realize blowing and scarfing cinder work in single drive synchronization, high durability and convenient use, improve the stability of ventilating when using, reduce artifical clearance frequency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged cross-sectional structural view of a portion a in fig. 1 according to the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the self-cleaning filtering type air-cooling heat dissipation mechanism in fig. 2 of the present invention.

In the figure: 100. an upper shell; 101. a turbine main body; 102. a lower case; 103. a honeycomb layer; 1. a case body; 2. a vertical tube; 3. a rectangular box; 4. a clip seat; 5. a drive motor; 6. a rotating shaft; 7. a fan blade; 8. a first gear; 9. a circular shaft; 10. a second gear; 11. an eccentric wheel; 12. a ball bearing; 13. an L-shaped guide rod; 14. knocking a vibration block; 15. a spring; 16. a stainless steel filter screen; 17. and (4) air inlet holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to fig. 3, the heat dissipation mechanism for operation of a steam turbine in a power plant according to the present embodiment includes a lower casing 102, an upper casing 100, and a steam turbine main body 101 installed between the lower casing 102 and the upper casing 100, wherein a plurality of heat dissipation fins are fixedly connected to the outer side of the upper casing 100, and a self-cleaning filtering type air-cooling heat dissipation mechanism is fixedly embedded in the top of the upper casing 100;

the self-cleaning filtering type air-cooling heat dissipation mechanism comprises a vertical pipe 2 fixedly embedded at the top of an upper shell 100, wherein an embedded hole fixedly connected with the outer side of the vertical pipe 2 is formed in the inner wall of the top of the upper shell 100, the vertical pipe 2 is fixedly embedded at the top of the upper shell 100 through the embedded hole, the bottom end of the vertical pipe 2 extends into the upper shell 100 and is communicated and fixed with a box body 1 with an opening at the bottom, the top end of the vertical pipe 2 is fixedly connected with a rectangular box 3 with an opening at the bottom, air inlet holes 17 are formed in the inner walls of two sides of the rectangular box 3, two sides of the rectangular box 3 are respectively provided with an inclined plane and are fixedly provided with an inclined stainless steel filter screen 16 in a threaded manner, and the arranged stainless steel filter screen 16 is used for filtering and intercepting solid impurities in the entering gas;

the inner wall of the top of the rectangular box 3 is embedded and fixed with a clip seat 4, the top of the clip seat 4 is fixedly provided with a driving motor 5, the output shaft of the driving motor 5 extends into the clip seat 4 and is fixedly connected with a bidirectional driving rotating assembly, the bottom of the bidirectional driving rotating assembly is fixedly connected with two eccentric wheels 11, the bottom of the bidirectional driving rotating assembly is fixedly connected with a rotating shaft 6, the outer side of the rotating shaft 6 is fixedly connected with a plurality of fan blades 7 positioned in the box body 1, the rotating shaft 6 is positioned in the vertical tube 2, the bottom of the fan blades 7 is a blowing part, the top of the fan blades 7 is an air inlet part, the inner wall of the bottom of the clip seat 4 is provided with a rotating hole, and a supporting bearing is fixedly sleeved in the rotating hole, the inner ring of the supporting bearing is fixedly sleeved with the outer side of the rotating shaft 6, so that the effect of rotatably supporting the rotating shaft 6 is achieved, a temperature sensor is installed in the upper shell 100, the rear side of the driving motor 5 is fixedly and electrically connected with a controller, the temperature sensor is electrically connected with the controller, a honeycomb layer 103 and a plurality of air outlet holes are formed in the inner side of the upper shell 100, the temperature sensor is used for detecting the temperature in the upper shell 100 and transmitting the temperature to the controller, automatic air blowing and heat dissipation can be achieved after the temperature for starting the driving motor 5 is preset by the controller, and the bidirectional driving rotating assembly is used for driving the rotating shaft 6 to rotate and synchronously driving the two eccentric wheels 11 to rotate in opposite directions;

the bidirectional linkage driving rotating assembly comprises a first gear 8, two second gears 10 and two circular shafts 9, the top of the first gear 8 is fixedly connected with the bottom end of an output shaft of the driving motor 5, the bottom of the first gear 8 is fixedly connected with the top end of the rotating shaft 6, the top ends of the two circular shafts 9 are rotatably connected with the inner wall of the top of the clip seat 4, two first bearings are fixedly connected to the inner wall of the top of the clip seat 4, inner rings of the first bearings are fixedly sleeved with the outer sides of the corresponding circular shafts 9, the circular shafts 9 are rotatably connected with the inner wall of the top of the clip seat 4 through the corresponding first bearings, the effect of rotatably mounting the circular shafts 9 is achieved, the two second gears 10 are respectively and fixedly sleeved on the corresponding circular shafts 9, the first gear 8 is meshed between the two second gears 10, and the bottom end of each circular shaft 9 is fixedly connected with one side, far away from the rotating shaft 6, of the top of the corresponding eccentric wheel 11; the arranged first gear 8, the two second gears 10 and the two circular shafts 9 are matched, when the driving motor 5 is started, the first gear 8 can be driven to rotate, so that the rotating shaft 6 and the fan blades 7 can be driven to rotate, and the two second gears 10 can be driven to rotate in opposite directions by utilizing the first gear 8, so that the two eccentric wheels 11 can be driven to rotate in opposite directions;

the sides, repellent to each other, of the two eccentric wheels 11 are in movable contact with elastic guide assemblies, the ends, repellent to each other, of the two elastic guide assemblies extend into the corresponding air inlet holes 17 respectively and are fixedly connected with knocking blocks 14, the clip-shaped seat 4 is slidably sleeved on the two elastic guide assemblies, the knocking blocks 14 are located on one side, close to the clip-shaped seat 4, of the corresponding stainless steel filter screen 16 and are matched with the stainless steel filter screen 16, and the elastic guide assemblies are used for driving the knocking blocks 14 to transversely move and transversely guide the elastic guide assemblies when the elastic guide assemblies are rotationally extruded by the eccentric wheels 11;

the elastic guide assembly comprises L-shaped guide rods 13, springs 15 and balls 12, the repellent ends of the two L-shaped guide rods 13 are fixedly connected with one sides of the two knocking blocks 14 respectively, the clip seat 4 is sleeved on the two L-shaped guide rods 13 in a sliding manner, rectangular guide holes are formed in the inner walls of the two sides of the clip seat 4, the inner walls of the rectangular guide holes are sleeved with the outer sides of the corresponding L-shaped guide rods 13 in a sliding manner, so that the L-shaped guide rods 13 are guided in a transverse sliding manner, the two balls 12 are respectively embedded and fixed on the adjacent sides of the two L-shaped guide rods 13, the balls 12 are in movable contact with the outer sides of the corresponding eccentric wheels 11, and the two ends of each spring 15 are fixedly connected with the inner wall of one side, close to the rotating shaft 6, of the corresponding L-shaped guide rod 13 and the side wall of the clip seat 4 respectively; the two L-shaped guide rods 13, the springs 15 and the balls 12 are matched, when the two eccentric wheels 11 rotate to circularly extrude the two balls 12, the two L-shaped guide rods 13 can be driven to reciprocate and relatively move, the two springs 15 are compressed, the two L-shaped guide rods 13 are used for transversely guiding the two knocking blocks 14, and the two knocking blocks 14 are driven to reciprocate to knock and remove slag from the two stainless steel filter screens 16.

The using method of the embodiment comprises the following steps: the temperature sensor detects the temperature in the upper shell 100 and transmits the temperature to the controller, the controller is used for presetting the temperature for starting the driving motor 5, when the temperature in the upper shell 100 is higher than the preset temperature, the controller controls the driving motor 5 to start, the driving motor 5 drives the first gear 8 to rotate, the first gear 8 drives the plurality of fan blades 7 to rotate through the rotating shaft 6, the fan blades 7 sequentially pass through the vertical pipe 2, the rectangular box 3 and the two stainless steel filter screens 16 to suck external gas when rotating, and blow downwards into the upper shell 100 to blow and dissipate heat of the steam turbine main body 101, so that automatic air cooling and heat dissipation of the upper part are realized, and the stainless steel filter screens 16 filter and intercept solid impurities in the gas;

the first gear 8 drives the two second gears 10 engaged with the first gear to rotate in opposite directions when rotating, the second gears 10 drive the eccentric wheels 11 to rotate through the circular shafts 9, the two eccentric wheels 11 rotate the first half circle to rotationally extrude the two balls 12 in the repelling direction, under the extrusion force, the two balls 12 move in the repelling direction and drive the two L-shaped guide rods 13 to repel each other, the two L-shaped guide rods 13 compress the two springs 15, the extrusion force on the two balls 12 is released when the two eccentric wheels 11 rotate the second half circle, the two springs 15 in the compression state drive the two L-shaped guide rods 13 to move back and return in the close direction, the two eccentric wheels 11 continuously rotate, so that the two L-shaped guide rods 13 can be driven to transversely reciprocate, the two L-shaped guide rods 13 drive the two knocking blocks 14 to reciprocate and continuously knock the two stainless steel filter screens 16, in a mode that the knocking blocks are matched with the stainless steel filter screens 16 in an inclined mode, blowing impurities covered on the outer sides of the two L-shaped guide rods can be knocked off, the stainless steel filter screens 16 can be automatically knocked and the slag can be driven to synchronously, and the slag can be conveniently used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a heat dissipation mechanism of power plant steam turbine operation, includes inferior valve (102), epitheca (100) and installs steam turbine main part (101) between inferior valve (102) and epitheca (100), a plurality of fin of outside fixedly connected with of epitheca (100), its characterized in that: the top of the upper shell (100) is fixedly embedded with a self-cleaning filtering type air-cooling heat dissipation mechanism;

the self-cleaning and filtering type air-cooling heat dissipation mechanism comprises a vertical pipe (2) embedded and fixed at the top of an upper shell (100), the bottom end of the vertical pipe (2) extends into the upper shell (100) and is communicated and fixed with a box body (1) with an opening at the bottom, the top end of the vertical pipe (2) is fixedly connected with a rectangular box (3) with an opening at the bottom, air inlets (17) are formed in the inner walls of two sides of the rectangular box (3), two sides of the rectangular box (3) are both provided with inclined planes, and an obliquely arranged stainless steel filter screen (16) is fixed on the two sides of the rectangular box (3) through threads;

a square-shaped seat (4) is fixedly embedded on the inner wall of the top of the rectangular box (3), a driving motor (5) is fixedly mounted on the top of the square-shaped seat (4), an output shaft of the driving motor (5) extends into the square-shaped seat (4) and is fixedly connected with a bidirectional combined-drive rotating assembly, two eccentric wheels (11) are fixedly connected to the bottom end of the bidirectional combined-drive rotating assembly, a rotating shaft (6) is fixedly connected to the bottom of the bidirectional combined-drive rotating assembly, and a plurality of fan blades (7) located in the box body (1) are fixedly connected to the outer side of the rotating shaft (6);

two the equal movable contact elasticity direction subassembly of eccentric wheel (11) one side that repels, two elasticity direction subassembly one end that repels extend to respectively in corresponding inlet port (17) and fixedly connected with strike and shake piece (14), return shape seat (4) slip cover and establish on two elasticity direction subassemblies, strike and shake piece (14) and be located one side that stainless steel filter screen (16) that corresponds are close to return shape seat (4) and cooperate with stainless steel filter screen (16).

2. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 1, wherein: two-way antithetical couplet drives rotating assembly includes first gear (8), two second gear (10) and two circle axle (9), the output shaft bottom fixed connection of the top of first gear (8) and driving motor (5), the top fixed connection of the bottom of first gear (8) and pivot (6), the top of two circle axles (9) all with the top inner wall rotation of returning shape seat (4) to be connected, two second gear (10) are fixed the cover respectively and are established on the circle axle (9) that corresponds, first gear (8) meshing is between two second gear (10), the one side fixed connection of pivot (6) is kept away from at the bottom of circle axle (9) and eccentric wheel (11) top that corresponds.

3. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 2, wherein: the elastic guide assembly comprises L-shaped guide rods (13), springs (15) and balls (12), wherein the repulsive ends of the two L-shaped guide rods (13) are fixedly connected with one sides, close to the two knocking blocks (14), of the two L-shaped guide rods respectively, the clip-shaped seat (4) is sleeved on the two L-shaped guide rods (13) in a sliding mode, the two balls (12) are fixedly embedded in one sides, close to the two L-shaped guide rods (13), of the two balls (12) and the outer sides of the corresponding eccentric wheels (11) are in movable contact, and the two ends of each spring (15) are fixedly connected with the inner wall, close to the rotating shaft (6), of one side of the corresponding L-shaped guide rod (13) and the side wall of the clip-shaped seat (4) respectively.

4. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 1, wherein: install temperature sensor in epitheca (100), the fixed and electric connection of rear side of driving motor (5) has the controller, and temperature sensor and controller electric connection, the inboard of epitheca (100) are provided with honeycomb layer (103) and a plurality of venthole.

5. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 1, wherein: the rotating shaft (6) is positioned in the vertical pipe (2), the bottom of the fan blade (7) is an air blowing part, and the top of the fan blade (7) is an air inlet part.

6. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 1, wherein: the inner wall of the bottom of the square-shaped seat (4) is provided with a rotating hole, a supporting bearing is fixedly sleeved in the rotating hole, and the inner ring of the supporting bearing is fixedly sleeved with the outer side of the rotating shaft (6).

7. The heat dissipating mechanism for operation of a steam turbine of a power plant according to claim 3, wherein: rectangular guide holes are formed in the inner walls of the two sides of the clip-shaped seat (4), and the inner walls of the rectangular guide holes are sleeved with the outer sides of the corresponding L-shaped guide rods (13) in a sliding mode.

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