A gas turbine terminal box cooling device

Abstract

The utility model discloses a gas turbine terminal box cooling device, including spraying mechanism and recovery mechanism, the spraying mechanism includes water tank, pump body and atomizing spray head, water tank export and pump body import intercommunication, the pump body export and atomizing spray head import intercommunication, recovery mechanism includes recovery tank, recovery pipe and radiator, recovery tank is located between terminal box and container, atomizing spray head is located in recovery tank, recovery pipe import and recovery tank bottom export intercommunication, recovery pipe export and radiator import intercommunication, radiator export and water tank import intercommunication, the utility model has the advantages of: through spraying mechanism and recovery mechanism, realized the circulating cooling of terminal box, reduced the possibility that electronic component in terminal box was damaged.

Description

Technical Field

[0001] This utility model relates to the field of gas turbines, specifically to a gas turbine junction box cooling device. Background Technology

[0002] Gas turbine generator sets typically employ a containerized generator set structure, with both the gas turbine and generator housed within the container. The gas turbine provides the power source for the generator and is coaxially mounted to the generator via a coupling. Both the gas turbine and generator are mounted together on a frame, which is fixedly connected to the container. The generator's neutral point output is connected to a high-voltage generator cabinet via a high-voltage cable. The high-voltage generator cabinet houses high-voltage devices for generator protection, power measurement, and power transmission.

[0003] Chinese utility model patent CN103147859B discloses a gas turbine generator set device, including a container. The container contains a gas turbine, a generator, and a coupling for connecting the gas turbine and the generator. A junction box for high-resistance grounding of the generator's neutral point is sealed on the container. The junction box contains a three-phase current transformer for electrical connection to the generator's neutral point output line. The three-phase current transformers are all electrically connected to a surge arrester.

[0004] The aforementioned technologies have the following drawbacks: when the gas turbine is running, the exhaust temperature of the gas turbine is above 500 degrees Celsius. Even if the junction box is located on a container, the surrounding temperature is still as high as 100 degrees Celsius, which seriously affects the lifespan of the electronic components inside the junction box. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a cooling device for a gas turbine junction box to solve the problem of excessively high junction box temperature in the prior art.

[0006] To achieve the above technical objectives, the present invention provides a gas turbine junction box cooling device, including a spray mechanism. The spray mechanism includes a water tank, a pump body, and atomizing nozzles. The outlet of the water tank is connected to the inlet of the pump body, and the outlet of the pump body is connected to the inlet of the atomizing nozzles.

[0007] The recycling mechanism includes a recycling bin, a recycling pipe, and a radiator. The recycling bin is located between the junction box and the container. The atomizing nozzle is located inside the recycling bin. The inlet of the recycling pipe is connected to the outlet at the bottom of the recycling bin. The outlet of the recycling pipe is connected to the inlet of the radiator. The outlet of the radiator is connected to the inlet of the water tank.

[0008] In some embodiments, the cooling device further includes heat-conducting fins connected to the outer wall of the junction box.

[0009] In some embodiments, the cooling device further includes a flow guiding mechanism, which includes a fan and a flow guiding pipe. The air outlet of the fan is connected to the inlet of the flow guiding pipe, and the outlet of the flow guiding pipe is connected to the inlet of the recovery box.

[0010] In some embodiments, the flow guiding mechanism further includes a flow guiding head and an adjustment assembly, wherein the inlet ball of the flow guiding head is hinged to the outlet of the flow guiding tube, the fixed end of the adjustment assembly is connected to the recycling bin, and the movable end of the adjustment assembly is connected to the flow guiding head.

[0011] In some embodiments, the adjustment assembly includes a motor, a drive gear, and a driven gear. The motor is mounted on a recycling bin, and the output shaft of the motor extends into the recycling bin. The drive gear is connected to the output shaft of the motor, and the driven gear is rotatably connected to the inner wall of the recycling bin. The guide head is connected to the driven gear, and the drive gear meshes with the driven gear.

[0012] In some embodiments, the adjustment assembly further includes a protective housing connected to the recycling bin, the protective housing covering the motor, the drive gear, and the driven gear.

[0013] In some embodiments, the spraying mechanism further includes a water inlet telescopic pipe and a buoyancy block, wherein the outlet of the water inlet telescopic pipe is connected to the outlet of the water tank, the inlet of the water inlet telescopic pipe extends into the water tank, and the buoyancy block is connected to the inlet of the water inlet telescopic pipe.

[0014] In some embodiments, the water inlet telescopic pipe includes a first pipe body and a second pipe body, one end of the first pipe body is connected to the outlet of the water tank, and the second pipe body is slidably connected to the other end of the first pipe body.

[0015] In some embodiments, the spraying mechanism further includes a filter screen connected to one end of the second tube away from the first tube.

[0016] In some embodiments, the recycling mechanism further includes an anti-stick layer attached to the inner wall of the recycling bin.

[0017] Compared with the prior art, the beneficial effects of this utility model include: through the spraying mechanism and the recycling mechanism, the junction box is cooled in a cyclic manner, reducing the possibility of damage to the electronic components inside the junction box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the gas turbine provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the cooling device provided by this utility model;

[0020] Figure 3 This utility model provides Figure 2 Enlarged view of the local structure at point A;

[0021] Figure 4 This utility model provides Figure 2 Enlarged view of the local structure at point B.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Spraying mechanism; 11. Water tank; 12. Pump body; 13. Atomizing nozzle; 14. Telescopic pipe; 141. First pipe body; 142. Second pipe body; 15. Buoyancy block; 16. Filter screen; 2. Recycling mechanism; 21. Recycling box; 22. Recycling pipe; 23. Radiator; 24. Anti-stick layer; 3. Heat-conducting fins; 4. Flow guiding mechanism; 41. Fan; 42. Flow guiding pipe; 43. Flow guiding head; 5. Adjustment component; 51. Motor; 52. Drive gear; 53. Driven gear; 54. Protective box; 6. Junction box; 7. Container. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] This utility model provides a cooling device for a gas turbine junction box, the structure of which is as follows: Figure 1 - Figure 4 As shown, it includes a spraying mechanism 1 and a recycling mechanism 2.

[0026] The spraying mechanism 1 includes a water tank 11, a pump body 12, and an atomizing nozzle 13. The outlet of the water tank 11 is connected to the inlet of the pump body 12, and the outlet of the pump body 12 is connected to the inlet of the atomizing nozzle 13.

[0027] The recycling mechanism 2 includes a recycling box 21, a recycling pipe 22, and a radiator 23. The recycling box 21 is located between the junction box 6 and the container 7. The atomizing nozzle 13 is located inside the recycling box 21. The inlet of the recycling pipe 22 is connected to the bottom outlet of the recycling box 21. The outlet of the recycling pipe 22 is connected to the inlet of the radiator 23. The outlet of the radiator 23 is connected to the inlet of the water tank 11.

[0028] During operation, water tank 11 stores chilled water for cooling. Under pressure differential, the chilled water in water tank 11 flows from the outlet of water tank 11 into the inlet of pump body 12. After being pressurized by pump body 12, the chilled water gains sufficient kinetic energy and is output from the outlet of pump body 12 at a higher pressure, and then transported through pipeline to atomizing nozzle 13. Atomizing nozzle 13 breaks the high-pressure chilled water into fine droplets. After being sprayed from the outlet of atomizing nozzle 13, the droplets diffuse into the recovery box 21 under the action of inertia and airflow, making full contact with the outer walls of junction box 6 and container 7. The droplets absorb heat and rapidly evaporate, thereby reducing the temperature inside junction box 6. After the atomized chilled water completes heat exchange with the high-temperature air, some droplets will recondense into liquid water, and together with the incompletely evaporated droplets, fall to the bottom of recovery box 21 under the action of gravity. The inlet of the recovery pipe 22 is connected to the outlet at the bottom of the recovery tank 21. Under the action of gravity and subsequent power, water in the recovery tank 21 flows into the recovery pipe 22. The water flows through the recovery pipe 22 into the radiator 23, accelerating the heat exchange rate between the water and the outside air. The cooled water flows out from the outlet of the radiator 23 and eventually returns to the inlet of the water tank 11, re-entering the water tank 11 for storage, completing the recycling of chilled water. This process repeats continuously, achieving a continuous circulation of chilled water between spray cooling and recycling, providing continuous cooling for the gas turbine.

[0029] In this invention, the spraying mechanism 1 and the recycling mechanism 2 achieve cyclic cooling of the junction box 6, reducing the possibility of damage to the electronic components inside the junction box 6.

[0030] To improve the heat exchange efficiency of junction box 6, please refer to... Figure 2 In a preferred embodiment, the cooling device further includes heat-conducting fins 3, which are connected to the outer wall of the junction box 6.

[0031] In use, the heat-conducting fins 3 are typically made of a material with high thermal conductivity and are tightly connected to the outer wall of the junction box 6, increasing the contact area between the junction box 6 and the external environment. Heat is transferred to the heat-conducting fins 3 more quickly through the wall of the junction box 6, accelerating heat dissipation and causing the gas temperature inside the junction box 6 to drop more rapidly.

[0032] To accelerate the flow rate of the refrigeration steam, please refer to... Figure 3 In a preferred embodiment, the cooling device further includes a flow guiding mechanism 4, which includes a fan 41 and a flow guiding pipe 42. The air outlet of the fan 41 is connected to the inlet of the flow guiding pipe 42, and the outlet of the flow guiding pipe 42 is connected to the inlet of the recovery box 21.

[0033] During operation, the fan 41 drives airflow through the guide pipe 42 into the recovery box 21, forming a directional airflow within the box and significantly increasing the airflow speed inside the recovery box 21. This accelerates the flow speed of chilled water vapor, improving the cooling effect.

[0034] To further enhance the cooling effect, please refer to Figure 3 In a preferred embodiment, the flow guiding mechanism 4 further includes a flow guiding head 43 and an adjustment component 5. The inlet ball of the flow guiding head 43 is hinged to the outlet of the flow guiding pipe 42. The fixed end of the adjustment component 5 is connected to the recycling box 21, and the movable end of the adjustment component 5 is connected to the flow guiding head 43.

[0035] When in use, by adjusting the angle of the guide head 43, the airflow can be more evenly distributed in the recovery box 21, increasing the contact area with high-temperature gas and atomized water droplets, and enhancing the heat exchange effect.

[0036] To drive the guide head 43 to rotate, please refer to... Figure 3 In a preferred embodiment, the adjustment component 5 includes a motor 51, a drive gear 52, and a driven gear 53. The motor 51 is mounted on the recycling bin 21, and the output shaft of the motor 51 extends into the recycling bin 21. The drive gear 52 is connected to the output shaft of the motor 51, and the driven gear 53 is rotatably connected to the inner wall of the recycling bin 21. The guide head 43 is connected to the driven gear 53, and the drive gear 52 meshes with the driven gear 53.

[0037] When in use, after starting the motor 51, the motor 51 drives the drive gear 52 to rotate, the drive gear 52 drives the driven gear 53 to rotate, and the driven gear 53 drives the guide head 43 to rotate, so that the high-speed flowing gas is evenly diffused in the recovery box 21, thereby evenly diffusing the chilled water vapor in the recovery box 21 and improving the cooling effect.

[0038] To reduce the possibility of damage to the driving gear 52 and driven gear 53, please refer to... Figure 3 In a preferred embodiment, the adjustment component 5 further includes a protective box 54, which is connected inside the recycling box 21 and covers the motor 51, the drive gear 52 and the driven gear 53.

[0039] During operation, the gas turbine operates in a complex environment, with the recovery tank 21 containing various adverse factors such as high temperature, humidity, oil, and dust. The protective box 54 encloses the motor 51, gears, and other core components, forming a physical barrier. This reduces the risk of equipment downtime due to component damage.

[0040] To improve the cleanliness of chilled water vapor, please refer to... Figure 4In a preferred embodiment, the spraying mechanism 1 further includes a water inlet telescopic pipe 14 and a buoyancy block 15. The outlet of the water inlet telescopic pipe 14 is connected to the outlet of the water tank 11, the inlet of the water inlet telescopic pipe 14 extends into the water tank 11, and the buoyancy block 15 is connected to the inlet of the water inlet telescopic pipe 14.

[0041] During use, the inlet of the water inlet telescopic pipe 14, under the action of the buoyancy block 15, is kept away from rust, silt, and other impurities deposited at the bottom of the water tank 11. This reduces the amount of impurities entering the spray system, reduces wear on the impeller of the pump body 12, prevents clogging of the atomizing nozzle 13, and extends the service life of core components such as the pump body 12 and the nozzle.

[0042] To achieve the expansion and contraction effect of the inlet expansion pipe 14, please refer to... Figure 4 In a preferred embodiment, the water inlet telescopic pipe 14 includes a first pipe body 141 and a second pipe body 142. One end of the first pipe body 141 is connected to the outlet of the water tank 11, and the second pipe body 142 is slidably connected to the other end of the first pipe body 141.

[0043] During use, when the water level drops, the buoyancy block 15 sinks with the liquid surface, pulling the second tube 142 away from the outlet of the water tank 11, extending the total length of the inlet telescopic tube 14, and ensuring that the inlet end is always submerged below the liquid surface. When the water level rises, the buoyancy block 15 rises with the liquid surface, pushing the second tube 142 towards the outlet of the water tank 11, shortening the total length of the inlet telescopic tube 14, and preventing the inlet end from contacting impurities at the bottom of the water tank 11.

[0044] To further improve the cleanliness of chilled water vapor, please refer to... Figure 4 In a preferred embodiment, the spraying mechanism 1 further includes a filter screen 16, which is connected to the end of the second tube 142 away from the first tube 141.

[0045] During use, if impurities enter the spray pipe, they may clog the nozzles or reduce the flow cross-sectional area, resulting in uneven spray volume or localized flow interruption. Filter 16 can intercept impurities at the water inlet, ensuring the long-term stable operation of the spray system.

[0046] To improve the efficiency of chilled water vapor recovery, please refer to... Figure 2 In a preferred embodiment, the recycling mechanism 2 further includes an anti-stick layer 24, which is made of polytetrafluoroethylene and has a thickness of 1 mm. The anti-stick layer 24 is attached to the inner wall of the recycling bin 21.

[0047] When in use, after the chilled water vapor liquefies, it condenses on the inner wall of the recovery tank 21, and the chilled water flows quickly along the inner wall of the recovery tank 21 into the recovery pipe 22, which improves the recovery efficiency of chilled water vapor.

[0048] To better understand this utility model, the following is combined with... Figure 1 - Figure 4 The working principle of a gas turbine junction box cooling device according to the present invention is described in detail below: Water tank 11 stores chilled water for cooling. Under pressure difference, the chilled water in water tank 11 flows from the outlet of water tank 11 into the inlet of pump body 12. After being pressurized by pump body 12, the chilled water gains sufficient kinetic energy and is output from the outlet of pump body 12 at a higher pressure, and then transported through pipeline to atomizing nozzle 13. Atomizing nozzle 13 breaks the high-pressure chilled water into fine droplets. After being sprayed from the outlet of atomizing nozzle 13, the droplets diffuse into the recovery box 21 under the action of inertia and airflow, making full contact with the outer walls of junction box 6 and container 7. The droplets absorb heat and rapidly evaporate, thereby reducing the temperature inside junction box 6. After the atomized chilled water completes heat exchange with the high-temperature air, some droplets will recondense into liquid water, and together with the incompletely evaporated droplets, fall to the bottom of recovery box 21 under gravity. The inlet of the recovery pipe 22 is connected to the outlet at the bottom of the recovery tank 21. Under the action of gravity and subsequent power, water in the recovery tank 21 flows into the recovery pipe 22. The water flows through the recovery pipe 22 into the radiator 23, accelerating the heat exchange rate between the water and the outside air. The cooled water flows out from the outlet of the radiator 23 and eventually returns to the inlet of the water tank 11, re-entering the water tank 11 for storage, completing the recycling of chilled water. This process repeats continuously, achieving a continuous circulation of chilled water between spray cooling and recycling, providing continuous cooling for the gas turbine.

[0049] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A gas turbine terminal cooling device installed between a terminal and a container, characterized by, The cooling device comprises a spraying mechanism and a recovery mechanism. The spraying mechanism comprises a water tank, a pump body and an atomizing nozzle. The recovery mechanism comprises a recovery tank, a recovery pipe and a radiator.

2. The gas turbine terminal cooling device of claim 1, wherein, The cooling device further comprises heat-conducting fins connected to the outer wall of the terminal box.

3. The gas turbine terminal cooling device of claim 1, wherein, The cooling device further comprises a flow guiding mechanism comprising a fan and a flow guiding pipe.

4. The gas turbine terminal cooling device of claim 3, wherein, The flow guiding mechanism further comprises a flow guiding head and an adjusting assembly.

5. The gas turbine terminal cooling device of claim 4, wherein, The adjusting assembly comprises a motor, a driving gear and a driven gear.

6. The gas turbine terminal heat sink of claim 5, wherein, The adjusting assembly further comprises a protective box.

7. The gas turbine terminal heat sink of claim 1, wherein, The spraying mechanism further comprises a water inlet telescopic pipe and a buoyant block.

8. The gas turbine terminal heat sink of claim 7, wherein, The water inlet telescopic pipe comprises a first pipe body and a second pipe body.

9. The gas turbine terminal heat sink of claim 8, wherein, The spraying mechanism further comprises a filter screen.

10. The gas turbine terminal heat sink of claim 1, wherein, The recovery mechanism further comprises an anti-sticking layer.

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