Wind generating set cabin dehumidification device suitable for cold weather

Abstract

The utility model discloses a wind generating set cabin dehumidification device suitable for cold weather, which comprises a finned condenser fixed on the outer wall of a wind generating set cabin, and one side of the finned condenser is provided with an air inlet and an air outlet; the air suction cover is fixed on the inner side of the wind power cabin; the condensation type wind generating set cabin dehumidification device is composed of the fin type condenser, the air suction cover, the negative pressure fan, the PLC, the air return pipe, the heating channel, the water collecting disc and the like, condensation dehumidification is carried out through the outdoor low-temperature environment in the cold region, energy saving and environment protection are achieved, energy consumption is low, and cost is low. The mode of combining condensation dehumidification and backflow heating is adopted, the humidity in the cabin can be effectively reduced, the temperature of the cabin can be prevented from being too low, normal operation of the wind generating set is guaranteed, the structure is simple, cost is low, the dehumidification effect is good, and the device is particularly suitable for dehumidification of the cabin of the wind generating set in the cold region.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of wind turbine generator unit cabin dehumidification technology, specifically relates to a kind of wind turbine generator unit cabin dehumidification device suitable for cold weather. BACKGROUND

[0002] Wind power generation as a clean, renewable energy form, has been widely applied in global scope, wind turbine generator unit in the operation process, cabin inside will produce a large amount of heat, cause cabin inside and outside temperature difference is larger, in cold region, winter outdoor temperature is extremely low, hot air in cabin meets ice-cold cabin wall and condenses into water droplets, cause cabin humidity is too high, high humidity environment can accelerate the corrosion of metal parts in cabin, reduce the insulation performance of electrical equipment, seriously affect the normal operation and life of wind turbine generator unit;

[0003] At present, commonly used cabin dehumidification method includes ventilation dehumidification and heating dehumidification, ventilation dehumidification method is simple, but in cold region, directly introducing outdoor cold air can reduce cabin temperature, affect the normal operation of unit;Heating dehumidification method energy consumption is higher, and dehumidification effect is limited, so the utility model provides a kind of wind turbine generator unit cabin dehumidification device suitable for cold weather. UTILITY MODEL CONTENT

[0004] The utility model is to provide a kind of wind turbine generator unit cabin dehumidification device suitable for cold weather, to solve the problem raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of wind turbine generator unit cabin dehumidification device suitable for cold weather, including

[0006] Finned condenser is fixed to the outer wall of wind power cabin, and the one side of finned condenser is provided with air inlet and air outlet;

[0007] And the inner side of the air suction hood fixed in wind power cabin is installed with negative pressure fan, the top of the air suction hood is connected with gas supply pipe, and the gas supply pipe is connected with air inlet;

[0008] And the back gas pipe installed in the inner side of wind power cabin and connected with air outlet, and heating channel is designed on the back gas pipe, the inner side of the heating channel is installed with PTC heater, and the bottom surface of the back gas pipe is penetrated and provided with a plurality of water draining holes;

[0009] And the water collecting tray installed in the inner side of wind power cabin and below back gas pipe;

[0010] And the PLC controller installed in the inner wall of wind power cabin, and the PLC controller is connected with negative pressure fan and PTC heater.

[0011] Preferably, a humidity sensor is installed on the inner side of the wind turbine nacelle, and the humidity sensor is connected to the PLC controller.

[0012] Preferably, a drainage conduit is connected to one side of the water collecting disc, and the drainage conduit is led out to the outside of the wind turbine nacelle.

[0013] Preferably, L-shaped fixing frames are fixed to the two side surfaces of the finned condenser, and the L-shaped fixing frames are fixed to the outer wall of the wind turbine nacelle through bolts.

[0014] Preferably, a hanger is fixed to the top of the air suction cover, and the hanger is fixed to the inner side of the wind turbine nacelle through bolts.

[0015] Preferably, a metal protective net frame is installed on the bottom surface of the air suction cover.

[0016] Preferably, L-shaped elastic clamping strips are fixed to the two side surfaces of the metal protective net frame, the top ends of the L-shaped elastic clamping strips extend to the side surfaces of the air suction cover, the top ends of the L-shaped elastic clamping strips are internally provided with integral arc-shaped protrusions, and the two side surfaces of the air suction cover are provided with side clamping grooves for clamping the arc-shaped protrusions.

[0017] Preferably, two inner positioning blocks are welded and fixed to the top surface of the metal protective net frame, the two inner positioning blocks are inserted into the inner side of the air suction cover, and the two inner positioning blocks are respectively attached to the two side inner walls of the air suction cover.

[0018] Compared with the prior art, the dehumidifying device for the condensing type wind turbine generator system nacelle has the advantages that: the dehumidifying device is composed of a finned condenser, an air suction cover, a negative pressure fan, a PLC controller, a gas return pipe, a heating channel and a water collecting disc, condensation dehumidification is performed by utilizing the low-temperature outdoor environment in cold regions, energy saving and environmental protection are achieved, energy consumption is low, the condensation dehumidification and the backflow heating are combined, the humidity in the nacelle is effectively reduced, the temperature of the nacelle is prevented from being too low, the normal operation of the wind turbine generator system is ensured, the structure is simple, the cost is low, the dehumidifying effect is good, and the dehumidifying device is particularly suitable for the nacelle dehumidification of the wind turbine generator system in cold regions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a structural schematic view of the utility model Figure 1 It is a local enlarged view of area A of the utility model;

[0021] Figure 3 It is a perspective view of the water collecting disc of the utility model;

[0022] Figure 4 It is a structural schematic view of the utility model Figure 1A local enlarged view of the middle B region;

[0023] In the figure: 1, finned condenser; 11, air inlet; 12, air outlet; 13, L-shaped fixing frame; 2, air suction cover; 21, metal protective net frame; 22, inner positioning block; 23, L-shaped elastic clamping strip; 24, arc-shaped protrusion; 25, side clamping groove; 3, negative pressure fan; 4, air supply pipe; 5, PLC controller; 6, air return pipe; 61, water draining hole; 7, heating channel; 71, PTC heater; 8, humidity sensor; 9, water collecting tray; 91, drainage conduit; 10, wind turbine nacelle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment 1

[0026] Please refer to Figures 1 to 3 , the first embodiment of the present application provides a technical solution: a wind turbine generator set nacelle dehumidification device suitable for cold weather, comprising

[0027] The finned condenser 1 is fixed to the outer wall of the wind turbine nacelle 10, and the finned condenser 1 is provided with an air inlet 11 and an air outlet 12 on one side;

[0028] and the air suction cover 2 is fixed to the inner side of the wind turbine nacelle 10, and the inner side of the air suction cover 2 is provided with a negative pressure fan 3, the top of the air suction cover 2 is connected with an air supply pipe 4, and the air supply pipe 4 is connected with the air inlet 11, when in use, the negative pressure fan 3 will suck the hot and humid air in the wind turbine nacelle 10 into the air suction cover 2 and then into the finned condenser 1 from the air supply pipe 4 and the air inlet 11, and the finned condenser 1 uses the low-temperature environment outside to condense and dehumidify the air, so that the water in the air is condensed into water droplets and flows back with the air return pipe 6;

[0029] and the air return pipe 6 is installed on the inner side of the wind turbine nacelle 10 and connected with the air outlet 12, for sending the dehumidified air back into the wind turbine nacelle 10, and the air return pipe 6 is designed with a heating channel 7, the inner side of the heating channel 7 is provided with a PTC heater 71, the model of the PTC heater 71 is RHGK047, so that the dehumidified air can be heated first and then sent back to the inner side of the wind turbine nacelle 10, preventing the temperature in the wind turbine nacelle 10 from being too low, and a plurality of water draining holes 61 are formed through the bottom surface of the air return pipe 6;

[0030] and a water collecting tray 9 installed inside the wind turbine nacelle 10 and directly below the air return pipe 6, so that the condensed water in the finned condenser 1 can be first sent back to the air return pipe 6 and then dripped into the water collecting tray 9 through the water dripping holes 61 for effective collection;

[0031] and a PLC controller 5 installed on the inner wall of the wind turbine nacelle 10, the model of the PLC controller 5 is FX3SA-30MR-CM, and the PLC controller 5 is connected with the negative pressure fan 3 and the PTC heater 71 for controlling the operation of the negative pressure fan 3 and the PTC heater 71.

[0032] In this embodiment, preferably, a humidity sensor 8 is also installed inside the wind turbine nacelle 10, the model of the humidity sensor 8 is EE07 humidity transmitter, and the humidity sensor 8 is connected with the PLC controller 5, the humidity sensor 8 is used to monitor the humidity inside the wind turbine nacelle 10 in real time and send the humidity signal to the PLC controller 5, so that the PLC controller 5 can control the operation of the negative pressure fan 3 and the PTC heater 71 according to the humidity signal of the humidity sensor 8 to adjust the humidity inside the wind turbine nacelle 10.

[0033] In this embodiment, preferably, one side of the water collecting tray 9 is connected with a drainage guide pipe 91, and the drainage guide pipe 91 leads out of the wind turbine nacelle 10 to drain the condensed water collected in the water collecting tray 9 out of the nacelle.

[0034] In this embodiment, preferably, L-shaped fixing brackets 13 are fixed on both sides of the finned condenser 1, and the L-shaped fixing brackets 13 are fixed on the outer wall of the wind turbine nacelle 10 by bolts to stably install the finned condenser 1.

[0035] In this embodiment, preferably, a hanger is fixed on the top of the air suction hood 2, and the hanger is fixed on the inner side of the wind turbine nacelle 10 by bolts to stably install the air suction hood 2.

[0036] In summary, when the humidity inside the wind turbine nacelle 10 exceeds the set value during actual operation, the PLC controller 5 starts the negative pressure fan 3 and the PTC heater 71, so that the air inside the wind turbine nacelle 10 is sent into the finned condenser 1 for condensation and dehumidification under the action of the negative pressure fan 3, the dehumidified air is sent back together with the condensed water from the air return pipe 6, the condensed water drips into the water collecting tray 9 through the water dripping holes 61 and is drained out of the nacelle through the drainage guide pipe 91, and the dehumidified air is heated by the PTC heater 71 when it is sent back into the wind turbine nacelle 10 to ensure the stability of the temperature inside the wind turbine nacelle 10, when the humidity inside the wind turbine nacelle 10 reaches below the set value, the PLC controller 5 stops the negative pressure fan 3 and the PTC heater 71 to stop dehumidification.

[0037] Embodiment 2

[0038] Please refer to Figures 1 to 4For the second embodiment of the utility model, this embodiment is based on the last embodiment, and the difference is that the bottom surface of the air suction hood 2 is provided with a metal protective net frame 21, which can ensure normal air circulation and prevent foreign matters from entering by mistake.

[0039] In this embodiment, preferably, the two side surfaces of the metal protective net frame 21 are fixed with L-shaped elastic clamping strips 23, the top ends of the L-shaped elastic clamping strips 23 extend to the side surfaces of the air suction hood 2, the inner side of the top end of the L-shaped elastic clamping strip 23 is provided with an integral arc-shaped protrusion 24, the L-shaped elastic clamping strip 23 is made of elastic iron sheet material, and will be elastically deformed when being pressed, the two side surfaces of the air suction hood 2 are provided with side clamping grooves 25 for clamping the arc-shaped protrusions 24, so that the metal protective net frame 21 can be stably clamped at the bottom of the air suction hood 2, the top surface of the metal protective net frame 21 is welded with two inner positioning blocks 22, the two inner positioning blocks 22 are inserted into the inner side of the air suction hood 2, and the two inner positioning blocks 22 are respectively attached to the two side inner walls of the air suction hood 2, and the design of the inner positioning block 22 can further ensure the installation stability of the metal protective net frame 21, and plays a supporting and limiting role.

[0040] Although the embodiments of the utility model have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dehumidifying device for a wind turbine nacelle suitable for cold weather, characterized in that: The utility model relates to a kind of wind turbine cabin condenser systems, including The finned condenser (1) fixed on the outer wall of wind turbine cabin (10) is provided with air inlet (11) and air outlet (12) on one side; And the air suction hood (2) is fixed on the inner side of wind turbine cabin (10), and negative pressure fan (3) is installed on the inner side of air suction hood (2), the top of air suction hood (2) is connected with air supply pipe (4), and air supply pipe (4) is connected with air inlet (11); And the return air pipe (6) is installed on the inner side of wind turbine cabin (10) and connected with air outlet (12), and heating channel (7) is designed on return air pipe (6), PTC heater (71) is installed on the inner side of heating channel (7), and a plurality of water draining holes (61) are provided on the bottom surface of return air pipe (6); And water collecting tray (9) is installed on the inner side of wind turbine cabin (10) and directly below return air pipe (6); And PLC controller (5) is installed on the inner wall of wind turbine cabin (10), and PLC controller (5) is connected with negative pressure fan (3) and PTC heater (71).

2. A dehumidifying device for a wind turbine generator system nacelle suitable for cold weather according to claim 1, characterized in that: It also includes humidity sensor (8) installed on the inner side of wind turbine cabin (10), and humidity sensor (8) is connected with PLC controller (5).

3. A dehumidifying device for a wind turbine generator system nacelle in cold weather according to claim 1, characterized in that: One side of the water collecting tray (9) is connected with a drain conduit (91), and the drain conduit (91) is led out to the outside of the wind turbine cabin (10).

4. A dehumidifying device for a wind turbine generator system nacelle in cold weather according to claim 1, characterized in that: The both side surfaces of the finned condenser (1) are fixed with L-shaped fixing frame (13), and the L-shaped fixing frame (13) is fixed on the outer wall of the wind turbine cabin (10) by bolts.

5. A dehumidifying device for a wind turbine generator system cabin suitable for cold weather according to claim 1, characterized in that: The top of the air suction hood (2) is fixed with a hanger, and the hanger is fixed on the inner side of the wind turbine cabin (10) by bolts.

6. A dehumidifying device for a wind turbine generator system nacelle in cold weather according to claim 1, characterized in that: The bottom surface of the air suction hood (2) is provided with a metal protective net frame (21).

7. A dehumidifying device for a wind turbine generator system nacelle suitable for cold weather according to claim 6, characterized in that: The both side surfaces of the metal protective net frame (21) are fixed with L-shaped elastic clamping strips (23), and the top ends of the L-shaped elastic clamping strips (23) extend to the side surfaces of the air suction hood (2), the top ends of the L-shaped elastic clamping strips (23) are provided with integral arc protrusions (24) on the inner sides, and the both side surfaces of the air suction hood (2) are provided with side clamping grooves (25) for clamping the arc protrusions (24).

8. A dehumidifying device for a wind turbine generator system nacelle suitable for cold weather according to claim 6, characterized in that: The top surface of the metal protective net frame (21) is welded with two inner positioning blocks (22), the two inner positioning blocks (22) are inserted into the inner side of the air suction hood (2), and the two inner positioning blocks (22) are respectively attached to the two side inner walls of the air suction hood (2).

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