阅读说明：本技术 风力发电机组机舱除湿系统及方法 (Cabin dehumidification system and method for wind generating set ) 是由 王岳峰 王浩 吴建华 姜宏伟 黄虎 朱少辉 宁文钢 王晓东 王建华 李达 薛晓云 于 2020-12-18 设计创作，主要内容包括：本发明公开了一种风力发电机组机舱除湿系统及方法,该系统包括：除湿装置、第一进气管道、第二进气管道、送气管道、排气管道、风量检测模块和控制模块；除湿装置安装在机舱内部,除湿装置进气口通过第一进气管道和第二进气管道与增速器或发电机所在空间和机舱外部连通,除湿装置出气口通过送气管道分别与机舱内各个设定区域连通,除湿装置排气口通过排气管道与机舱外部连通；风量检测模块用于监测增速器或发电机散热器的风量；控制模块用于根据增速器或发电机散热器的风量和除湿装置所需风量控制第一进气管道和第二进气管道的进气量。本发明的系统及方法能够将经增速器或发电机散热器吸热后形成的高温气体作为除湿装置的气源,降低除湿装置功耗。(The invention discloses a wind generating set cabin dehumidification system and a method, wherein the system comprises the following components: the device comprises a dehumidifying device, a first air inlet pipeline, a second air inlet pipeline, an air supply pipeline, an exhaust pipeline, an air quantity detection module and a control module; the air outlet of the dehumidifying device is respectively communicated with each set area in the engine room through the air supply pipeline, and the air outlet of the dehumidifying device is communicated with the outside of the engine room through the air exhaust pipeline; the air quantity detection module is used for monitoring the air quantity of the speed increaser or the generator radiator; the control module is used for controlling the air inflow of the first air inlet pipeline and the second air inlet pipeline according to the air quantity of the speed increaser or the generator radiator and the air quantity required by the dehumidifying device. The system and the method can take high-temperature gas formed after heat absorption by the speed increaser or the generator radiator as a gas source of the dehumidifying device, and reduce the power consumption of the dehumidifying device.)

1. A wind generating set cabin dehumidification system, comprising: the device comprises a dehumidifying device, a first air inlet pipeline, a second air inlet pipeline, an air supply pipeline, an exhaust pipeline, an air quantity detection module and a control module;

the dehumidifying device is installed inside a cabin, an air inlet of the dehumidifying device is communicated with a space where a speed increaser or a generator is located inside the cabin and the outside of the cabin through the first air inlet pipeline and the second air inlet pipeline respectively, and is used for absorbing high-temperature air and outside air after heat absorption by the speed increaser radiator or the generator radiator, an air outlet of the dehumidifying device is communicated with each set area inside the cabin through a plurality of air supply pipelines respectively and is used for conveying dry air, and an air outlet of the dehumidifying device is communicated with the outside of the cabin through the air exhaust pipeline and is used for exhausting humid air;

the air volume detection module is connected with the control module and is used for monitoring the air volume of the speed increaser radiator or the generator radiator;

the control module is used for controlling the air inflow of the first air inlet pipeline and the second air inlet pipeline according to the air quantity of the speed increaser radiator or the generator radiator and the air quantity required by the dehumidifying device.

2. The wind generating set cabin dehumidification system of claim 1, wherein an adjustable switch valve is mounted at an air inlet end of each of the first air inlet pipeline and the second air inlet pipeline, and the adjustable switch valve is connected with the control module.

3. The wind turbine generator system cabin dehumidification system of claim 2, wherein a suction fan is further installed at an air inlet end of the first air inlet duct.

4. The wind turbine generator system cabin dehumidification system of claim 2, wherein a coarse filter is further installed at an air inlet end of the second air inlet duct.

5. The wind turbine generator system nacelle dehumidification system of claim 1, wherein an air inlet of the dehumidification device is fitted with a salt spray filter.

6. The wind turbine generator system nacelle dehumidification system of claim 1, further comprising a humidity detection module;

the humidity detection module is arranged in each set area in the engine room and is connected with the control module;

the air outlet ends of the air supply pipelines are respectively provided with an adjustable switch valve, and the adjustable switch valves are respectively connected with the control module;

the control module controls the opening of the adjustable switch valve according to the humidity detection result of the humidity detection module.

7. The wind turbine generator system nacelle dehumidification system of claim 1, wherein the plurality of air delivery conduits are connected by a tee fitting.

8. A wind turbine generator set cabin dehumidification method applied to the wind turbine generator set cabin dehumidification system of any one of claims 1 to 8, comprising:

the air quantity detection module monitors the air quantity of the speed increaser radiator or the generator radiator and sends air quantity information to the control module;

the control module receives the air volume information and controls the air intake amount of the first air inlet pipeline and the second air inlet pipeline according to the air volume of the speed increaser radiator or the generator radiator and the air volume required by the dehumidifying device.

9. The method for dehumidifying the cabin of the wind turbine generator set according to claim 8, wherein the step of receiving the air volume information by the control module, and controlling the air volume of the first air inlet duct and the air volume of the second air inlet duct according to the relationship between the air volume of the speed-increasing gearbox radiator or the generator radiator and the air volume required by the dehumidifying device comprises the steps of:

if the air volume of the speed increaser radiator or the generator radiator is larger than or equal to the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened and controls the second air inlet pipeline to be closed;

if the air volume of the speed increaser radiator or the generator radiator is smaller than the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened, and controls the opening degree of the second air inlet pipeline according to the difference value between the air volume required by the dehumidifying device and the air volume of the speed increaser radiator or the generator radiator.

10. The wind turbine nacelle dehumidifying method of claim 8, further comprising:

if the humidity value of a certain set area is higher than a preset humidity threshold value, controlling the air supply pipeline communicated with the certain set area to be opened;

and if the difference value between the humidity value of a certain set area and the preset humidity threshold value is greater than the preset difference value, controlling the air supply pipeline communicated with the certain set area to be closed.

Technical Field

The invention relates to the technical field of wind generating sets, in particular to a dehumidifying system and method for a cabin of a wind generating set.

Background

Wind energy is the fastest-developing clean energy among renewable energy sources, the wind energy is mainly utilized through a wind generating set, wind power generation is taken as an environment-friendly energy industry, the wind power generation is more and more emphasized in modern energy-tight society, and the investment on the wind generating set is also more and more increased.

In order to improve the utilization efficiency of wind energy as much as possible, the existing generating set is usually arranged near the sea area, but due to the high humidity and salinity of the air near the sea area, in order to avoid the erosion of the air on the wind generating set, the air entering the cabin needs to be dehumidified.

At present, a dehumidification mode of an offshore wind generating set mainly adopts a mode of sucking air from the outside by a rotary dehumidifier for filtration, in a specific working process, a heater in the dehumidifier heats outside normal-temperature air and then conveys the air to the rotary for dehumidification, and the rotary wheel conveys dry gas to a cabin through a pipeline.

The inventor finds that the prior art has at least the following problems:

the air entering the dehumidifier is all the air at normal temperature, so that the power consumption of the heater is large; the humidity of each electromechanical device in the cabin can not be independently controlled in a partitioned mode, partial dry air is wasted, and the energy utilization rate is low.

Disclosure of Invention

In order to solve part or all of technical problems in the prior art, the invention provides a dehumidifying system and method for a cabin of a wind generating set.

In a first aspect, the invention discloses a wind generating set cabin dehumidification system, comprising: the device comprises a dehumidifying device, a first air inlet pipeline, a second air inlet pipeline, an air supply pipeline, an exhaust pipeline, an air quantity detection module and a control module;

the dehumidifying device is installed inside a cabin, an air inlet of the dehumidifying device is communicated with a space where a speed increaser or a generator is located inside the cabin and the outside of the cabin through the first air inlet pipeline and the second air inlet pipeline respectively, and is used for absorbing high-temperature air and outside air after heat absorption by the speed increaser radiator or the generator radiator, an air outlet of the dehumidifying device is communicated with each set area inside the cabin through a plurality of air supply pipelines respectively and is used for conveying dry air, and an air outlet of the dehumidifying device is communicated with the outside of the cabin through the air exhaust pipeline and is used for exhausting humid air;

the air volume detection module is connected with the control module and is used for monitoring the air volume of the speed increaser radiator or the generator radiator;

the control module is used for controlling the air inflow of the first air inlet pipeline and the second air inlet pipeline according to the air quantity of the speed increaser radiator or the generator radiator and the air quantity required by the dehumidifying device.

In some optional embodiments, the air inlet ends of the first air inlet pipeline and the second air inlet pipeline are respectively provided with an adjustable switch valve, and the adjustable switch valves are connected with the control module.

In some alternative embodiments, the air inlet end of the first air inlet pipeline is also provided with a suction fan.

In some optional embodiments, the air inlet end of the second air inlet pipeline is also provided with a coarse filter.

In some alternative embodiments, the air inlet of the dehumidification device is fitted with a salt spray filter.

In some optional embodiments, the system further comprises a humidity detection module;

the humidity detection module is arranged in each set area in the engine room and is connected with the control module;

the air outlet ends of the air supply pipelines are respectively provided with an adjustable switch valve, and the adjustable switch valves are respectively connected with the control module;

the control module controls the opening of the adjustable switch valve according to the humidity detection result of the humidity detection module.

In some alternative embodiments, a plurality of the air supply pipes are connected by a tee joint.

In a second aspect, the present invention further discloses a method for dehumidifying a wind generating set cabin, which is applied to the wind generating set cabin dehumidifying system, and includes:

the air quantity detection module monitors the air quantity of the speed increaser radiator or the generator radiator and sends air quantity information to the control module;

the control module receives the air volume information and controls the air intake amount of the first air inlet pipeline and the second air inlet pipeline according to the air volume of the speed increaser radiator or the generator radiator and the air volume required by the dehumidifying device.

In some optional embodiments, the control module receives the air volume information, and controls the air volume of the first air inlet duct and the air volume of the second air inlet duct according to the air volume of the speed-increasing gearbox radiator or the generator radiator and the air volume required by the dehumidification device, including:

if the air volume of the speed increaser radiator or the generator radiator is larger than or equal to the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened and controls the second air inlet pipeline to be closed;

if the air volume of the speed increaser radiator or the generator radiator is smaller than the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened, and controls the opening degree of the second air inlet pipeline according to the difference value between the air volume required by the dehumidifying device and the air volume of the speed increaser radiator or the generator radiator.

In some optional embodiments, the method further comprises:

if the humidity value of a certain set area is higher than a preset humidity threshold value, controlling the air supply pipeline communicated with the certain set area to be opened;

and if the difference value between the humidity value of a certain set area and the preset humidity threshold value is greater than the preset difference value, controlling the air supply pipeline communicated with the certain set area to be closed.

The technical scheme of the invention has the following main advantages:

according to the cabin dehumidification system and method of the wind generating set, the first air inlet pipeline and the second air inlet pipeline are arranged, so that the air inlet of the dehumidification device is respectively communicated with the space where the speed increaser or the generator is arranged inside the cabin and the outside of the cabin, high-temperature gas formed after heat absorption of the speed increaser radiator or the generator radiator in the wind generating set can be used as all or part of an air source of the dehumidification device, and the power consumption of the dehumidification device is remarkably reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a wind generating set cabin dehumidification system according to an embodiment of the invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a view from the direction B of FIG. 1;

FIG. 4 is an enlarged view of area I of FIG. 3;

fig. 5 is a flowchart of a method for dehumidifying a nacelle of a wind turbine generator system according to an embodiment of the invention.

Description of reference numerals:

1-a dehumidifying device, 101-an air inlet, 102-an air outlet, 103-an air outlet, 2-a first air inlet pipeline, 3-a second air inlet pipeline, 4-an air supply pipeline, 5-an air exhaust pipeline, 6-a radiator, 7-an adjustable switch valve, 8-a suction fan, 9-a coarse filter, 10-a salt spray filter, 11-a tee joint, 12-a connecting flange, 13-a humidity detection module, 14-a pipeline bracket, 15-a fixed bracket, 16-a cabin, 17-a cabin electrical cabinet, 18-a unit main transmission device, 19-a tower drum and 20-a hub.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.

In a first aspect, referring to fig. 1 to 4, an embodiment of the present invention provides a wind turbine generator system cabin dehumidification system, including: the device comprises a dehumidifying device, a first air inlet pipeline, a second air inlet pipeline, an air supply pipeline, an exhaust pipeline, an air quantity detection module and a control module; the dehumidifying device is arranged in the cabin, an air inlet of the dehumidifying device is communicated with the space where the speed increaser or the generator is arranged in the cabin and the outside of the cabin through a first air inlet pipeline and a second air inlet pipeline respectively and is used for absorbing high-temperature air and outside air after heat absorption of a speed increaser radiator or a generator radiator, an air outlet of the dehumidifying device is communicated with each set area in the cabin through a plurality of air supply pipelines respectively and is used for conveying dry air, and an air outlet of the dehumidifying device is communicated with the outside of the cabin through an air exhaust pipeline and is used for exhausting humid air; the air quantity detection module is connected with the control module and is used for monitoring the air quantity of the speed increaser radiator or the generator radiator; the control module is used for controlling the air inflow of the first air inlet pipeline and the second air inlet pipeline according to the air quantity of the speed increaser radiator or the generator radiator and the air quantity required by the dehumidifying device.

Wherein, each setting area includes but is not limited to: the region of the cabin electrical cabinet, the region of the main transmission equipment of the unit, the interface of the cabin and the tower and the interface of the cabin and the hub.

Specifically, when a humidity value of a set area in the cabin is larger than a preset humidity threshold value and the cabin dehumidification system of the wind generating set needs to be started so as to reduce the humidity of the set area, the air quantity detection module is used for monitoring the air quantity of a speed increaser radiator or a generator radiator in the cabin in real time and sending air quantity information to the control module, the control module receives the air quantity information, and the air quantity of the first air inlet pipeline and the air quantity of the second air inlet pipeline are controlled according to the air quantity relation between the air quantity of the speed increaser radiator or the generator radiator and the air quantity required by the dehumidification device, which is recorded in the air quantity information; when the air quantity of the speed increaser radiator or the generator radiator is larger than or equal to the air quantity required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened and controls the second air inlet pipeline to be closed; when the air volume of the speed increaser radiator or the generator radiator is smaller than the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened, and controls the opening degree of the second air inlet pipeline according to the difference value of the air volume required by the dehumidifying device and the air volume of the speed increaser radiator or the generator radiator; and then the dehumidifying device carries out heating and drying treatment on the sucked gas, the dried gas is conveyed to a set area through the gas outlet and the corresponding gas conveying pipeline, and meanwhile, the residual humid gas is discharged out of the cabin through the gas outlet and the gas exhaust pipeline.

According to the cabin dehumidification system of the wind generating set, provided by the embodiment of the invention, the first air inlet pipeline and the second air inlet pipeline are arranged, so that the air inlet of the dehumidification device is respectively communicated with the space where the speed increaser or the generator is arranged inside the cabin and the outside of the cabin, high-temperature gas formed after heat absorption of the speed increaser radiator or the generator radiator in the wind generating set can be used as all or part of an air source of the dehumidification device, and the power consumption of the dehumidification device is obviously reduced.

Optionally, in order to facilitate the control module to control the air input of the first air inlet pipeline and the air input of the second air inlet pipeline, the air inlet ends of the first air inlet pipeline and the second air inlet pipeline are both provided with an adjustable switch valve, and the adjustable switch valve is connected with the control module.

Therefore, the control module can realize the air inlet quantity control of the first air inlet pipeline and the second air inlet pipeline by adjusting the opening degree of the adjustable switch valve.

Further, it is considered that if the distance between the space where the speed increaser or the generator is located inside the nacelle and the position where the dehumidifying device is located is large, the air suction force of the dehumidifying device to the space where the speed increaser or the generator is located is small. For this reason, in an embodiment of the present invention, the air inlet end of the first air inlet pipeline may further be provided with a suction fan.

Further, considering that the air outside the cabin is unprocessed air, if the dehumidifying apparatus directly sucks the air outside the cabin through the second air intake duct, various impurities contained in the air may cause damage to the dehumidifying apparatus or blockage of the duct in the case of long-term operation. For this reason, in an embodiment of the present invention, the air inlet end of the second air inlet pipeline may be further installed with a coarse filter.

Optionally, in an embodiment of the present invention, the coarse filter and the adjustable switch valve installed in the second air intake pipe may be integrally designed, that is, the coarse filter with the adjustable switch valve is directly installed at the air intake end of the second air intake pipe.

Further, in order to increase the filtering effect of the dehumidification system on the salt fog, in an embodiment of the present invention, a salt fog filter may be installed at an air inlet of the dehumidification device, and the salt fog filter is configured to filter the salt fog contained in the air entering the dehumidification device.

Optionally, referring to fig. 4, in order to facilitate connection between the first air inlet pipeline and the second air inlet pipeline and the air inlet of the dehumidification device, in an embodiment of the present invention, the first air inlet pipeline and the second air inlet pipeline may be communicated with the air inlet of the dehumidification device through a three-way joint.

Further, in order to facilitate the connection between the three-way joint and the air inlet of the dehumidification device and the salt spray filter, in an embodiment of the present invention, a connection flange may be disposed at one end of the three-way joint for connecting the air inlet of the dehumidification device, and the connection flange may be, for example, a square-to-round flange.

Further, referring to fig. 1-3, in an embodiment of the present invention, the system may further include a humidity detection module; each set area in the engine room is provided with a humidity detection module, and the humidity detection module is connected with the control module; the air outlet ends of the air supply pipelines are respectively provided with an adjustable switch valve, and the adjustable switch valves are respectively connected with the control module; the control module controls the opening of the adjustable switch valve according to the humidity detection result of the humidity detection module.

Wherein, humidity detection module can adopt humidity to detect the probe.

Specifically, when the humidity detection module detects that the humidity value of a certain set area is higher than a preset humidity threshold value, the control module controls the air supply pipeline communicated with the certain set area to be opened; when the humidity detection module detects that the difference value between the humidity value of a certain set area and the preset humidity threshold value is larger than the preset difference value, the control module controls the air supply pipeline communicated with the certain set area to be closed.

The preset humidity threshold value and the preset difference value can be determined according to actual conditions.

According to the arrangement, the humidity of each set area in the engine room can be independently controlled, and different humidity requirements of each set area in the engine room are met.

Further, when the difference between the humidity values of all the set areas in the cabin and the preset humidity threshold is greater than the preset difference, the dehumidifying device is closed.

So set up, can all set for when regional humidity value all satisfies the requirement the operation of stop dehydrating unit to reduce unnecessary energy consumption, can avoid dehydrating unit to cause equipment trouble such as motor at setting for frequent start-up of humidity threshold value department again.

Optionally, in order to facilitate connection between the plurality of air supply pipes and the air outlet of the dehumidification device, in an embodiment of the present invention, the plurality of air supply pipes for communicating with the respective set areas may be connected by a tee joint.

Further, the plurality of air supply ducts may be fixed inside the nacelle by duct brackets.

The pipe bracket may include, for example, an angle bracket and a clip.

Optionally, in an embodiment of the present invention, the dehumidifying device may adopt a rotary dehumidifier, and the dehumidifying device may be mounted inside the cabin through a fixing bracket.

The specific installation position of the dehumidifying device can be determined according to the actual structure of the wind generating set, so that the arrangement of the pipeline is facilitated.

Further, the specific arrangement positions of the first air inlet pipeline, the second air inlet pipeline, the air supply pipeline and the exhaust pipeline can be determined according to the specific installation position of the dehumidifying device and the actual structure of the wind generating set, so that the pipelines are prevented from interfering with other components in the engine room while the pipelines are conveniently arranged.

Optionally, in an embodiment of the present invention, the control module may be, for example, an industrial personal computer.

In a second aspect, referring to fig. 5, an embodiment of the present invention further provides a wind generating set cabin dehumidification method, which is applied to the wind generating set cabin dehumidification system described above, and includes:

the air quantity detection module monitors the air quantity of the speed increaser radiator or the generator radiator and sends air quantity information to the control module;

the control module receives the air volume information and controls the air intake amount of the first air inlet pipeline and the second air inlet pipeline according to the air volume of the speed increaser radiator or the generator radiator and the air volume required by the dehumidifying device.

Specifically, the control module receives the air volume information, and controls the air volume of the first air inlet pipeline and the air volume of the second air inlet pipeline according to the air volume of the speed increaser radiator or the generator radiator and the air volume required by the dehumidifying device, and the control module may include:

if the air quantity of the speed increaser radiator or the generator radiator is larger than or equal to the air quantity required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened and controls the second air inlet pipeline to be closed;

if the air volume of the speed increaser radiator or the generator radiator is smaller than the air volume required by the dehumidifying device, the control module controls the first air inlet pipeline to be opened, and controls the opening degree of the second air inlet pipeline according to the difference value between the air volume required by the dehumidifying device and the air volume of the speed increaser radiator or the generator radiator.

Therefore, high-temperature gas generated after heat absorption by the speed increaser radiator or the generator radiator in the wind generating set can be used as all or part of the gas source of the dehumidifying device, and the power consumption of the dehumidifying device is remarkably reduced.

Further, in an embodiment of the present invention, the method for dehumidifying a nacelle of a wind turbine generator system may further include:

if the humidity value of a certain set area is higher than a preset humidity threshold value, controlling an air supply pipeline communicated with the certain set area to be opened;

and if the difference value between the humidity value of a certain set area and the preset humidity threshold value is greater than the preset difference value, controlling the air supply pipeline communicated with the certain set area to be closed.

Therefore, the humidity of each set area in the engine room can be independently controlled, and different humidity requirements of each set area in the engine room are met.

Further, in an embodiment of the present invention, the method for dehumidifying a nacelle of a wind turbine generator system may further include:

and when the difference values between the humidity values of all the set areas in the cabin and the preset humidity threshold value are larger than the preset difference value, closing the dehumidifying device.

So set up, can all set for when regional humidity value all satisfies the requirement the operation of stop dehydrating unit to reduce unnecessary energy consumption, can avoid dehydrating unit to cause equipment trouble such as motor at setting for frequent start-up of humidity threshold value department again.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.