CN115528851A - Multifunctional ventilating base of steam turbine generator - Google Patents

Abstract

The invention relates to the technical field of heat dissipation of a steam turbine generator, and particularly discloses a multifunctional ventilating base of a steam turbine generator, which comprises a ventilating wind drum and a fixed base; the ventilation air duct is covered on the outer side of the generator stator iron core, a protective shell is fixedly arranged on the outer wall of the generator stator iron core, a heat dissipation air duct is covered on the outer portion of the protective shell, a blowing air nozzle is arranged on the inner wall of one side, close to the protective shell, of the heat dissipation air duct, and air flow blades are arranged at the bottom of the blowing air nozzle; and a heat absorption water pipe opening is formed in the protective shell below the blowing air nozzle. This ventilation frame is when the in-service use, and the protective housing direct contact of heat absorption water pipe and generator stator core can absorb the heat that generator stator core produced, simultaneously, and the cooperation through the jetting tuyere of the inboard installation of heat dissipation tuber pipe lasts the jetting heat dissipation with the cold air to generator stator core to this reaches generator stator core rapid cooling, radiating purpose.

Description

A multifunctional ventilator base for a turbogenerator

technical field

The invention relates to the technical field of heat dissipation of a turbogenerator, in particular to a multifunctional ventilator base of a turbogenerator.

Background technique

Most of the existing ventilation structures of turbogenerator bases only rely on the air-cooling structure to cool them down in actual use, but this kind of cooling treatment method is likely to cause a temperature difference between the head and the tail of the ventilation structure during the low-temperature air circulation process. Larger, the ventilation of the turbogenerator is not uniform enough, and the cooling efficiency is reduced. Therefore, there is an urgent need for a multifunctional fan base for a turbogenerator with uniform ventilation and high heat dissipation efficiency to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a multi-functional ventilator base for a turbogenerator to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a multi-functional ventilator base for a turbogenerator, including a ventilator and a fixed base; The outer wall of the machine stator core is fixed with a protective shell, the outer cover of the protective shell is provided with a cooling air duct, and the inner wall of the side of the cooling air duct close to the protective shell is provided with a blowing nozzle, and the air inlet of the spraying blowing nozzle It is connected with the heat dissipation air pipe, and the bottom of the blowing nozzle is equipped with wind blades;

The fixed base is fixed on the bottom of the ventilation duct, and the inside of the fixed base is equipped with an air inlet pipe and an air outlet pipe. Air duct connection;

The protective housing below the spray nozzle is provided with a heat-absorbing pipe, and the outlet of the heat-absorbing pipe is connected to the condensed water tank through the first water pump. A condenser is installed inside the condensed water tank, and the condensed water tank is connected to the heat-absorbing pipe through the second water pump. the water outlet.

Preferably, the annular array of blowing nozzles is installed inside the cooling air duct, and the air outlets of the spraying nozzles are set toward the protective housing.

Preferably, the air outlet of the spraying tuyere is provided with a gap with the protective casing, and the spraying tuyere is connected to the protective casing through a connecting column.

Preferably, the cross-section of the spraying tuyere is an isosceles trapezoidal structure with a narrow top and a wide bottom, and the bottom end of the spraying tuyere is set in an arc-shaped structure adapted to the arc of the protective casing.

Preferably, the heat dissipation air duct is covered with a connecting hoop, and the end of the connecting hoop away from the heat dissipation air duct is connected to the ventilation duct.

Preferably, a heat conduction column is also arranged between two adjacent groups of blowing nozzles, and the upper and lower ends of the heat conduction column are respectively connected with the heat dissipation air pipe and the protective housing.

Preferably, the heat dissipation air duct includes a main air duct and an annular air duct, and there are multiple annular air ducts, and the plurality of annular air ducts are set on the outside of the protective shell at equal intervals, and the main air duct is arranged on the outer side of the annular air duct. On the outer circumferential wall, the main air duct communicates with the outer circumferential wall of the annular air duct.

Preferably, the wind flow blades are fixedly mounted on the rotating shaft, and the top end of the rotating shaft is rotatably mounted on the bottom of the blowing nozzle through a bearing.

Preferably, the first water pump, the second water pump and the condenser are all installed in a fixed base, and a sound insulation board is arranged inside the fixed base.

Preferably, an arc-shaped heat conduction plate is provided on the upper surface of the condensed water tank, and the arc-shaped heat conduction plate is attached to the bottom wall of the ventilation duct.

Compared with prior art, the beneficial effect of the present invention is:

1. A turbogenerator multi-functional fan base provided by the present invention, the fan base is mainly composed of a ventilation duct and a fixed base, the stator core of the generator is installed in the ventilation duct, and the electronically positioned iron core There are heat dissipation air pipes and heat absorption pipes on the top. In actual use, the heat absorption pipes are in direct contact with the protective shell of the generator stator core, which can absorb the heat generated by the generator stator core. At the same time, through the cooling air With the cooperation of the blowing nozzle installed inside the tube, the cold air is continuously sprayed and dissipated to the stator core of the generator, so as to achieve the purpose of rapidly cooling and dissipating heat from the stator core of the generator.

2. A turbogenerator multifunctional ventilator base provided by the present invention. In this solution, a condensed water tank connected with the heat-absorbing pipe is installed in the fixed base. Wall connection, so as to achieve the purpose of cooling the ventilation duct, and then speed up the cooling efficiency of the stator core of the generator.

Description of drawings

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

Fig. 2 is the partial specific structure schematic diagram of the present invention;

Fig. 3 is a longitudinal sectional view of the present invention;

Fig. 4 is a schematic diagram of the specific structure of the cooling air duct of the present invention.

In the figure: 1. Ventilation duct; 2. Fixed base; 3. Generator stator core; 4. Protective shell; 5. Cooling duct; 51. Main duct; 52. Ring duct; Blowing nozzle; 7. Curved heat conduction plate; 8. Wind blade; 9. Air inlet pipe; 10. Air outlet pipe; 11. Heat absorption pipe; 12. Fan; 13. First water pump; 14. Condensate water tank; Condenser; 16. Connecting hoop; 17. Heat conduction column; 18. Rotary shaft; 19. Second water pump; 20. Sound insulation board.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal" etc. is based on the orientation or positional relationship shown in the drawings, and is only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Any one embodiment of the present invention will be described below in conjunction with accompanying drawings 1 to 4 for further explanation.

Embodiment 1: A multifunctional fan base for a turbogenerator, including a ventilation duct 1 and a fixed base 2; the ventilation duct 1 is covered outside the generator stator core 3, and the generator stator core 3 is fixedly provided with a protective shell 4 on the outer wall of the protective shell 4, and the outer cover of the protective shell 4 is provided with a heat dissipation air duct 5, and the inner wall of the side of the heat dissipation air duct 5 close to the protective shell 4 is provided with a blowing nozzle 6, and the spraying blowing nozzle The air inlet of 6 communicates with the heat dissipation air duct 5, and the bottom of the blowing nozzle 6 is equipped with wind blades 8;

The fixed base 2 is fixed on the bottom of the ventilation duct 1, and the inside of the fixed base 2 is equipped with an air inlet pipe 9 and an air outlet pipe 10, and the air inlet pipe 9 communicates with the air inlet of the heat dissipation air pipe 5 through the fan 12, The air outlet of the air outlet pipe 10 communicates with the ventilation duct 1 .

As a preferred embodiment, the spray nozzles 6 are installed in an annular array on the inner side of the cooling air duct 5 , and the air outlets of the spray nozzles 6 are set toward the protective casing 4 .

As a preferred embodiment, the air outlet of the blowing nozzle 6 is provided with a gap between the protective housing 4 , and the spraying nozzle 6 is connected to the protective housing 4 through a connecting column 16 .

As a preferred embodiment, the cross-section of the spray tuyere 6 is an isosceles trapezoidal structure with a narrow top and a wide bottom, and the bottom end of the spray tuyere 6 is set in an arc-shaped structure adapted to the arc of the protective shell 4 .

As a preferred embodiment, the heat dissipation air duct 5 is covered with a connecting hoop 16 , and the end of the connecting hoop 16 away from the heat dissipation air duct 5 is connected to the ventilation duct 1 .

As a preferred embodiment, a heat conduction column 17 is also arranged between two adjacent groups of blowing nozzles 6 , and the upper and lower ends of the heat conduction column 17 are respectively connected with the heat dissipation air pipe 5 and the protective housing 4 .

In this embodiment: the external low-temperature air is pumped to the heat dissipation air pipe 5 through the air inlet pipe 9 through the blower fan 12, and the blowing nozzle 6 installed inside the heat dissipation air pipe 5 is used to spray the generator stator core 3, While the blowing nozzle 6 is working, the wind vane 8 installed at the bottom rotates under the action of the wind force, and then the wind flow blown at the blowing nozzle 6 is dispersed to around the protective shell 4, so as to protect the protective shell 4 The purpose of uniform heat dissipation, thereby improving the overall heat dissipation efficiency and quality of the turbogenerator.

Embodiment 2: The heat dissipation air duct 5 includes a main air duct 51 and an annular air duct 52. There are multiple annular air ducts 52, and the plurality of annular air ducts 52 are sleeved on the outside of the protective shell 4 at equal intervals. The pipe 51 is arranged on the outer circumferential wall of the annular air duct 52 , and the main air duct 51 communicates with the outer circumferential wall of the annular air duct 52 .

In this embodiment: in this scheme, the cooling air duct 5 is designed as a structure composed of a main air duct 51 and an annular air duct 52, and communicates with the air inlet duct 9 through the main air duct 51, so that it can pass through the main air duct The air duct 51 transports the low-temperature air from the outside to each annular air duct 52 in turn, reducing the air circulation between the plurality of annular air ducts 52, and avoiding the large temperature difference of the air in the cooling air ducts 5 at the head and tail ends, causing the turbine The overall heat dissipation of the generator is not uniform enough.

Embodiment 3: The protective casing 4 below the spray nozzle 6 is provided with a heat absorbing pipe 11, and the water outlet of the heat absorbing pipe 11 is connected to the condensed water tank 14 through the first water pump 13, and a condenser is installed inside the condensed water tank 14 15. The condensed water tank 14 is connected to the water outlet of the heat absorption pipe 11 through the second water pump 19 .

As a preferred embodiment, the wind flow vane 8 is fixedly installed on the rotating shaft 18, and the top end of the rotating shaft 18 is rotatably installed on the bottom of the blowing nozzle 6 through a bearing.

As a preferred embodiment, the first water pump 13 , the second water pump 19 and the condenser 15 are all installed in the fixed base 2 , and the inner side of the fixed base 2 is provided with a sound insulation board 20 .

As a preferred embodiment, the upper surface of the condensed water tank 14 is provided with an arc-shaped heat conducting plate 7 , and the arc-shaped heat conducting plate 7 is attached to the bottom wall of the ventilation duct 1 .

In this embodiment: this scheme is provided with a water-cooling mechanism on the basis of Embodiment 1. In actual use, the cooling water in the condensed water tank 14 is cooled by the condenser 15, and then the condensed water tank 14 is cooled by the first water pump 13. The cooled cooling water inside is pumped into the heat-absorbing pipe 11. Since the heat-absorbing pipe 11 is arranged in an annular array on the outer wall of the protective shell 4, when the heat-absorbing pipe 11 flows through the outer side of the generator stator core 3 , can directly cool down the generator stator core 3 .

Simultaneously, when the blowing nozzle 6 in the embodiment 1 is in the process of spraying, the low-temperature air around the heat absorption pipe 11 can be sprayed to around the stator core 3 of the generator, so as to accelerate the overall cooling of the turbogenerator efficiency.

Moreover, since the arc-shaped heat conduction plate 7 provided on the top of the condensed water tank 14 is attached to the bottom wall of the ventilation duct 1, it can directly cool the low-temperature air in the condensed water tank 14 to the ventilation duct 1. When the air in the ventilation duct 1 cools down, the overall cooling efficiency of the turbogenerator can be further accelerated.

It is worth noting that the entire device is controlled by the controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described here.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a multi-functional ventilation frame of turbo generator which characterized in that: comprises a ventilating wind barrel (1) and a fixed base (2); the wind power generation device is characterized in that the ventilation wind barrel (1) is covered on the outer side of the generator stator iron core (3), a protective shell (4) is fixedly arranged on the outer wall of the generator stator iron core (3), a heat dissipation wind pipe (5) is covered on the outer part of the protective shell (4), a blowing wind nozzle (6) is arranged on the inner wall of one side, close to the protective shell (4), of the heat dissipation wind pipe (5), the wind inlet of the blowing wind nozzle (6) is communicated with the heat dissipation wind pipe (5), and wind flow blades (8) are arranged at the bottom of the blowing wind nozzle (6);

the fixed base (2) is fixed at the bottom of the ventilation air cylinder (1), an air inlet pipe (9) and an air outlet pipe (10) are installed inside the fixed base (2), the air inlet pipe (9) is communicated with an air inlet of the heat dissipation air pipe (5) through a fan (12), and an air outlet of the air outlet pipe (10) is communicated with the ventilation air cylinder (1);

the air blowing device is characterized in that a heat absorption water pipe (11) is arranged on the protective shell (4) below the air blowing nozzle (6), a water outlet of the heat absorption water pipe (11) is communicated with a condensate water tank (14) through a first water pump (13), a condenser (15) is arranged inside the condensate water tank (14), and the condensate water tank (14) is communicated with a water outlet of the heat absorption water pipe (11) through a second water pump (19).

2. The multifunctional ventilating stand of the steam turbine generator as claimed in claim 1, wherein: the blowing air nozzles (6) are arranged on the inner side of the heat dissipation air pipe (5) in an annular array mode, and air outlets of the blowing air nozzles (6) are arranged towards the protective shell (4).

3. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the air outlet of the blowing air nozzle (6) is arranged in a clearance with the protective shell (4), and the blowing air nozzle (6) is connected with the protective shell (4) through a connecting column.

4. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the cross section of the blowing air nozzle (6) is of an isosceles trapezoid structure with a narrow upper part and a wide lower part, and the bottom end of the blowing air nozzle (6) is of an arc structure matched with the radian of the protective shell (4).

5. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the heat dissipation air pipe (5) is sleeved with a connection hoop (16), and one end, far away from the heat dissipation air pipe (5), of the connection hoop (16) is connected with the ventilation air duct (1) through a heat conduction column (17).

6. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: a heat-conducting column (17) is also arranged between the two adjacent groups of blowing air nozzles (6), and the upper end and the lower end of the heat-conducting column (17) are respectively connected with the heat-radiating air pipe (5) and the protective shell (4).

7. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the heat dissipation air pipe (5) comprises a main air pipe (51) and an annular air pipe (52), the annular air pipe (52) is provided with a plurality of annular air pipes, the plurality of annular air pipes (52) are sleeved on the outer side of the protective shell (4) at equal intervals, the main air pipe (51) is arranged on the outer side wall of the circumference of the annular air pipe (52), and the main air pipe (51) is communicated with the outer side wall of the circumference of the annular air pipe (52).

8. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the air flow blades (8) are fixedly arranged on a rotating shaft (18), and the top end of the rotating shaft (18) is rotatably arranged at the bottom of the blowing air nozzle (6) through a bearing.

9. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: first water pump (13), second water pump (19) and condenser (15) all install in fixed baseplate (2), and the inboard of fixed baseplate (2) is provided with acoustic celotex board (20).

10. The multifunctional ventilating machine base of the steam turbine generator as claimed in claim 1, wherein: the upper surface of condensate water tank (14) is provided with arc heat-conducting plate (7), and arc heat-conducting plate (7) laminating ventilation dryer (1)'s diapire sets up.

Images