CN220552298U - Winterization device for direct air cooling system - Google Patents
Winterization device for direct air cooling system Download PDFInfo
- Publication number
- CN220552298U CN220552298U CN202321517313.5U CN202321517313U CN220552298U CN 220552298 U CN220552298 U CN 220552298U CN 202321517313 U CN202321517313 U CN 202321517313U CN 220552298 U CN220552298 U CN 220552298U
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- crank
- driving
- shaft
- air cooling
- cooling system
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- 238000001816 cooling Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000007710 freezing Methods 0.000 claims abstract description 11
- 230000008014 freezing Effects 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a winterization device for a direct air cooling system, which comprises a driving device, a transmission mechanism and sealing blades, wherein the driving device is used for driving the sealing blades to rotate; the driving device is connected with the transmission device through a shaft, driving force is provided for the transmission mechanism, the transmission mechanism drives the sealing blades to adjust the angle, a fan is arranged below the driving device, and the top of the driving device is provided with a triangular finned tube. The utility model can solve the problems that the condensate liquid in the finned tube reaches the solidifying point and is frozen and blocked when the cooling tower runs in the extreme environment in winter, and the safe and stable running of the device is affected. Meanwhile, the problem of equipment freezing and blocking during the non-stop period of the system when the system runs in winter is solved, and the normal driving of a subsequent device is ensured.
Description
Technical Field
The utility model belongs to the technical field of direct air cooling systems, and particularly relates to a winterization device for a direct air cooling system.
Background
The direct air cooling system utilizes mechanical ventilation to condense the exhaust steam of the steam turbine in the finned tube, and generally comprises an exhaust pipeline, a finned tube, a fan, a condensate pump, an accessory pipeline, a valve and the like. In order to ensure the heat exchange effect, the direct air cooling system consists of a plurality of cooling triangular units, and each triangular unit corresponds to an independent fan and a shutter on the outer side of the fin.
Under the condition of low ambient temperature in winter (below minus 30 ℃ in inner Mongolia), the situation that the direct air cooling system is stopped in an unintended way, the blind window is not tightly sealed and the wind speed is high can all cause the freezing and blocking phenomenon of the finned tube, so that the operation back pressure of the unit is high, and the operation efficiency of the unit is reduced.
When the temperature of the existing device in winter is lower than-30 ℃, if the system is stopped in an unintended way, the shutter leaks air or the fan operates, the temperature of condensate in the finned tube is reduced after heat exchange, the problem of freezing and blocking occurs, and the production safety and stability are affected.
Disclosure of Invention
In order to overcome the technical problems, the utility model aims to provide a device for preventing freezing of a direct air cooling system in winter, which can solve the problem of safe and stable operation of a cooling tower in extreme environments in winter and effectively prevent condensate liquid in a fin tube from reaching a freezing point and causing freezing blockage. Meanwhile, when the system runs in winter, the problem of equipment freezing and blocking during non-stop of the system is solved, and normal driving of a subsequent device is ensured.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a winterization device for a direct air cooling system comprises a driving device, a transmission mechanism and a sealing blade 3; the driving device is connected with the transmission device through a shaft, driving force is provided for the transmission mechanism, the transmission mechanism drives the sealing blades 3 to adjust the angle, the fan 2 is arranged below the driving device, and the fin tube 1 which is in a triangle shape as a whole is arranged at the top of the driving device.
The driving device comprises a driving motor 4, a triangular belt 5, a motor shaft 6 and a crank shaft 7; the driving motor 4 is connected with a triangle belt 5 through a motor shaft 6, and the triangle belt 5 transmits power to a crank shaft 7.
The transmission mechanism is a crank-link mechanism, the crank-link mechanism comprises a crank and a connecting rod, the crank rotates around a crank shaft 7 to drive one end of the connecting rod to operate, the other end of the connecting rod is connected with a sealing blade shaft 8, and the sealing blade shaft 8 drives the sealing blade 3 to rotate to adjust the angle of the sealing blade 3.
And a limiter is arranged on the crank and used for realizing start-stop control of the driving motor 4.
And the angle of the sealing blade 3 is adjusted to realize the control of the air inlet quantity and the air direction of the sealing surface.
The fin tubes are uniformly distributed and arranged at the upper part or the lower part of the fan.
The utility model has the beneficial effects of.
1. The exhaust port of the fan is closed, so that the system load is effectively reduced, and the problem of freezing and blocking of the finned tube is effectively prevented.
2. The anti-freezing device is controlled in an interlocking way with the original system, so that automatic control is realized.
3. The sealing blade 3 is adopted, so that the installation and the disassembly are convenient, and the maintenance cost is low.
4. The sealing blade 3 is controlled by a crankshaft 7 connecting rod mechanism and a limiter, so that the device is safe and reliable and has low operation energy consumption.
5. The antifreezing device is combined with the position of the fan motor, can be installed on or below the fan, and has strong flexibility.
Drawings
Fig. 1 is a side view of the present utility model.
Fig. 2 is a top view of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and 2: a winterization device for a direct air cooling system comprises a driving device, a transmission mechanism and a sealing blade 3; the driving device is connected with the transmission device through a shaft, driving force is provided for the transmission mechanism, the transmission mechanism drives the sealing blade 3 to adjust the angle, a fan is arranged below the driving device, and the top of the driving device is provided with a triangular finned tube.
The driving device comprises a driving motor 4, a triangular belt 5, a motor shaft 6 and a crank shaft 7; the driving motor 4 is connected with a triangle belt 5 through a motor shaft 6, and the triangle belt 5 transmits power to a crank shaft 7.
The transmission mechanism is a crank-link mechanism, the crank-link mechanism comprises a crank and a connecting rod, the crank rotates around a crank shaft 7 to drive one end of the connecting rod to operate, the other end of the connecting rod is connected with a sealing blade shaft 8, and the sealing blade shaft 8 drives the sealing blade 3 to rotate to adjust the angle of the sealing blade 3.
And a limiter is arranged on the crank and used for realizing start-stop control of the driving motor 4.
And the angle of the sealing blade 3 is adjusted to realize the control of the air inlet quantity and the air direction of the sealing surface.
The sealing blades 3 are uniformly distributed and are arranged at the upper part or the lower part of the fan.
The working principle of the utility model is as follows:
after the device is electrified, the driving motor rotates, power is transmitted to the crank shaft 7 through the motor shaft 6 and the triangular belt 5, the crank rotates around the crank shaft 7, and meanwhile, the starting and stopping control of the driving motor 4 is realized by virtue of a limiter arranged on the crank;
the transmission mechanism is a crank-link mechanism, the crank-link mechanism comprises a crank and a link, the crank rotates around a crank shaft 7 to drive the link to operate, so that the sealing blade 3 rotates around a sealing blade shaft 8, and the control of the air inlet quantity and the air direction is realized through the angle of the sealing surface of the sealing blade 3.
When the air cooling system is operated in winter (the general ambient temperature is lower than-10 ℃), and when the normal operating ambient temperature is lower (-30 ℃), the system is planned to stop or the emergency stops, the device is put into operation in time, so that the fin tube can be effectively prevented from being frozen and blocked.
The process of the running and the exiting of the antifreezing device comprises the following steps: the power supply is connected, the motor of the driving device rotates, and meanwhile, the sealing blade 3 is driven to rotate through the transmission mechanism.
When the crankshaft 7 moves from the point A (the included angle between the wind direction and the horizontal plane is 90 degrees) to the point B (the included angle between the wind direction and the horizontal plane is 90 degrees), the sealing surface of the sealing blade 3 rotates to be parallel to the suction inlet of the fan, so that air is effectively prevented from entering, and the anti-freezing purpose is realized. When the crank shaft 7 moves from the point A to the point B, the included angle between the wind direction and the horizontal plane is gradually reduced, and the adjustment of the wind direction and the wind quantity of the entering device is realized.
When the crankshaft 7 moves from point B (wind direction and horizontal angle of 0 °) to point C (wind direction and horizontal angle of 90 °), the sealing surface of the sealing blade 3 rotates to be perpendicular to the suction inlet of the fan, and air can enter the system through the suction inlet. When the crank shaft 7 moves from the point B to the point C, the included angle between the wind direction and the horizontal plane becomes larger gradually, and the adjustment of the wind direction and the wind quantity of the entering device is realized.
The crank shaft 7 moves from the point C to the point D, the crank shaft 7 moves from the point D to the point A, and the included angle between the wind direction and the horizontal plane is gradually changed, so that the adjustment of the wind direction and the wind quantity of the entering device is realized.
Claims (6)
1. A winterization device for a direct air cooling system, characterized by comprising a driving device, a transmission mechanism and a sealing blade (3); the driving device is connected with the transmission device through a shaft, driving force is provided for the transmission mechanism, the transmission mechanism drives the sealing blade (3) to adjust the angle, a fan is arranged below the driving device, and the top of the driving device is provided with a triangular finned tube.
2. A device for direct air cooling system winterization according to claim 1, characterized in that the driving means comprises a driving motor (4), a v-belt (5), a motor shaft (6) and a crank shaft (7); the driving motor (4) is connected with the triangular belt (5) through a motor shaft (6), and the triangular belt (5) transmits power to the crank shaft (7).
3. The device for preventing freezing in winter of a direct air cooling system according to claim 1, wherein the transmission mechanism is a crank-link mechanism, the crank-link mechanism comprises a crank and a link, the crank rotates around a crank shaft (7), one end of the link is driven to operate, the other end of the link is connected with a sealing blade shaft (8), and the sealing blade shaft (8) drives the sealing blade (3) to rotate, so that the angle of the sealing blade (3) is adjusted.
4. A device for direct air cooling system winterization according to claim 3, characterized in that the crank is provided with a limiter for realizing the start-stop control of the drive motor (4).
5. A device for direct air cooling system winterization according to claim 1, characterized by the fact that the angular adjustment of the sealing blades (3) allows control of the sealing surface air intake and wind direction.
6. A device for direct air cooling system winterization according to claim 1, characterized in that the sealing blades (3) are evenly distributed in the upper or lower part of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517313.5U CN220552298U (en) | 2023-06-14 | 2023-06-14 | Winterization device for direct air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321517313.5U CN220552298U (en) | 2023-06-14 | 2023-06-14 | Winterization device for direct air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220552298U true CN220552298U (en) | 2024-03-01 |
Family
ID=90004878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321517313.5U Active CN220552298U (en) | 2023-06-14 | 2023-06-14 | Winterization device for direct air cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220552298U (en) |
-
2023
- 2023-06-14 CN CN202321517313.5U patent/CN220552298U/en active Active
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