CN112484338A - Anti-condensation refrigerating device and method for variable pitch system - Google Patents
Anti-condensation refrigerating device and method for variable pitch system Download PDFInfo
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- CN112484338A CN112484338A CN202011388704.2A CN202011388704A CN112484338A CN 112484338 A CN112484338 A CN 112484338A CN 202011388704 A CN202011388704 A CN 202011388704A CN 112484338 A CN112484338 A CN 112484338A
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- module
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- refrigeration
- cabinet body
- pitch system
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- 238000009833 condensation Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims abstract description 59
- 230000005494 condensation Effects 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/025—Removal of heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a condensation-preventing refrigerating device and method for a variable pitch system, and relates to the technical field of wind power generation systems; the device comprises a cabinet body, a refrigeration module and a radiating fin, wherein the radiating fin is arranged on the cabinet body; the refrigeration module is mounted on the heat sink. The invention can reduce the temperature in the variable-pitch system cabinet, ensure the refrigeration effect, effectively prevent the condensation in the cabinet and ensure the safe and stable operation of the system.
Description
Technical Field
The invention relates to the technical field of wind power generation systems, in particular to a condensation-preventing refrigerating device and method for a variable pitch system.
Background
At present, in the wind power generation industry in recent years, offshore wind power has entered a large-scale development stage, a pitch control system of the offshore wind power is subjected to the environmental effects of high temperature, high humidity and the like for a long time, the condition is severe, and once the offshore wind power fails, great economic loss and serious social influence are caused.
The high requirement is provided for the high-temperature environment where the current variable pitch system is located and the operation stability of devices in the variable pitch system cabinet, but the heating of core components still cannot meet the operation condition in the long-term high-temperature environment, so that the heat dissipation problem of the variable pitch system is increasingly prominent.
The traditional refrigeration methods generally have two types: air cooling and semiconductor refrigeration. In the air-cooling heat dissipation mode, heat cannot be dissipated out under the large high-temperature environment, and the refrigeration effect is limited; under the large high-humidity environment of semiconductor refrigeration, the generated condensation can be along with the operation (rotation) of a variable pitch system, so that other parts and plates in the cabinet are in short circuit, the creepage distance is reduced, and explosion is generated in severe cases.
Disclosure of Invention
The invention provides a variable pitch system condensation-prevention refrigerating device and method, which can effectively prevent condensation in a cabinet and ensure safe and stable operation of a system while reducing the temperature in the variable pitch system cabinet and ensuring the refrigerating effect.
In a first aspect, an embodiment of the invention provides a variable pitch system condensation-prevention refrigerating device, which comprises a cabinet body, a refrigerating module and a radiating fin, wherein the radiating fin is installed on the cabinet body; the refrigeration module is mounted on the heat sink.
In an optional embodiment, the cabinet further comprises a control module and a temperature detection module which are arranged in the cabinet body; the cooling fin, the refrigeration module and the temperature detection module are respectively connected with the control module;
the temperature detection module is used for detecting the ambient temperature in the cabinet body and sending the ambient temperature to the control module;
the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and adjusting the refrigeration module according to a comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value.
In an optional embodiment, the refrigeration module is a semiconductor refrigeration piece, and a cold surface of the semiconductor refrigeration piece is attached to the heat dissipation piece;
the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and if so, reducing the current flowing through the semiconductor refrigeration piece so as to enable the ambient temperature to be lower than the preset temperature threshold value.
In an optional embodiment, the system further comprises an alarm module, wherein the alarm module is connected with the control module;
the alarm module is used for detecting whether the ambient temperature in the cabinet body exceeds a preset temperature threshold value or not, and if so, alarming.
In a second aspect, an embodiment of the present invention provides a pitch system condensation-prevention refrigeration method, where the method includes:
detecting the ambient temperature in the cabinet body;
comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and adjusting a refrigeration module according to a comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value; wherein, the refrigeration module is arranged on the heat radiating fin on the cabinet body.
In an optional implementation manner, the refrigeration module is a semiconductor refrigeration piece, and a cold surface of the semiconductor refrigeration piece is attached to the heat dissipation piece.
In an alternative embodiment, the method further comprises:
and detecting whether the ambient temperature in the cabinet body exceeds a preset temperature threshold value, and if so, giving an alarm.
The invention has the beneficial effects that: the anti-condensation device for the variable pitch system comprises a cabinet body, a refrigeration module and a radiating fin, wherein the radiating fin is arranged on the cabinet body; meanwhile, as the refrigeration module is arranged on the radiating fins, no cold surface with the temperature lower than the ambient temperature in the cabinet body exists in the cabinet body, thereby effectively preventing the condensed water in the cabinet. Therefore, the invention can reduce the temperature in the variable pitch system cabinet, ensure the refrigeration effect, effectively prevent the condensation in the cabinet and ensure the safe and stable operation of the system.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a condensation-preventing refrigeration device of a variable pitch system of the present invention;
FIG. 2 is another schematic structural diagram of the anti-condensation refrigerating device of the pitch system of the invention;
FIG. 3 is a flow chart of a condensation prevention refrigeration method of a pitch system according to the present invention.
In the figure: 1, a cabinet body; 2-semiconductor refrigerating sheet; 3-heat sink.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to facilitate understanding of the embodiment, the following describes in detail a pitch system condensation-prevention refrigeration device and a pitch system condensation-prevention refrigeration method disclosed by the invention.
Referring to fig. 1, an embodiment of the present invention provides a pitch system condensation-prevention refrigeration apparatus, including a cabinet 1, a refrigeration module and a heat sink 3, wherein the heat sink 3 is installed on the cabinet 1; the refrigeration module is mounted on a heat sink 3.
Specifically, the cabinet 1 in the present embodiment refers to an outer shell of the pitch system driver, and the heat sink 3 is installed outside the cabinet 1. In this embodiment, the refrigeration module is a semiconductor refrigeration piece 2, and may also be a refrigeration block or refrigeration piece of other forms.
As shown in fig. 1 and 2, the semiconductor chilling plates 2 are installed between the heat sink 3 and the cabinet body 1, and the semiconductor chilling plates 2 and the heat sink 3 are tightly attached to each other back to back.
The semiconductor refrigerating sheet 2 of the embodiment directly acts on a heating source of the variable pitch system, so that heat of the radiating sheet 3 is refrigerated and dissipated to a hub environment, the highest point temperature of temperature rise is reduced, and the temperature in the whole cabinet is reduced; meanwhile, as the refrigeration module is arranged on the radiating fins 3, no cold surface with lower ambient temperature than that in the cabinet body 1 exists in the cabinet body 1, thereby effectively preventing condensed water in the cabinet. The temperature in the variable-pitch system cabinet can be reduced, the refrigeration effect is ensured, meanwhile, the condensation in the cabinet is effectively prevented, and the safe and stable operation of the system is ensured.
Preferably, the cabinet also comprises a control module and a temperature detection module which are arranged in the cabinet body 1; the cooling fin 3, the refrigeration module and the temperature detection module are respectively connected with the control module;
the temperature detection module is used for detecting the ambient temperature in the cabinet body 1 and sending the ambient temperature to the control module;
and the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value or not and adjusting the refrigeration module according to the comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value.
Here, the control module may be a main controller of the pitch system drive, or may be a separately provided controller for controlling the cooling fin 3 and/or the cooling module, and the controller is also controlled by the main controller. The control module in this embodiment is a main controller of the pitch system driver, and thus the current input end of the semiconductor refrigeration piece 2 is directly connected with the control module, that is, the semiconductor refrigeration piece is connected with the main controller of the pitch system driver.
The temperature detection module is arranged in the cabinet body 1 and used for detecting the ambient temperature in the cabinet body 1; and sending the detection signal to a control module; the control module judges whether the detected temperature signal exceeds a preset temperature threshold value or not, and if so, the control module controls the refrigeration module to improve the refrigeration effect, so that the ambient temperature is reduced and is lower than the preset temperature threshold value.
Here, since the control module of this embodiment is the main controller of the pitch system driver, the temperature detection module is connected to the main controller of the pitch system driver, and cooperates with the driver to detect the temperature of the pitch cabinet 1, and send the temperature to the main controller of the pitch system driver. In this embodiment, the predetermined temperature threshold is 62 ℃.
Preferably, the refrigeration module is a semiconductor refrigeration piece 2, and the cold surface of the semiconductor refrigeration piece 2 is attached to the radiating fin 3;
and the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value, and if so, reducing the current flowing through the semiconductor refrigerating sheet 2 so as to enable the ambient temperature to be lower than the preset temperature threshold value.
Here, in the present embodiment, the semiconductor cooling plate 2TEC1-12703 is adopted, and its cold surface is directly attached to the driver cooling plate 3 and is back-to-back with the driver IGBT, so that heat is directly exchanged, and the hot surface is disposed at the end away from the cooling plate 3, so that heat is dissipated to the hub environment through the cooling fan of the cooling plate 3. Because the semiconductor refrigerating sheet 2 directly acts on the driver radiating sheet 3, no cold surface with the temperature lower than the ambient temperature in the cabinet exists on all components in the cabinet, thereby preventing the occurrence of condensed water in the cabinet.
When the temperature detection module feeds back that the current temperature of the cabinet body 1 reaches 58 ℃, the main controller of the variable pitch system driver controls the semiconductor refrigerating sheet 2 to work, the temperature of the cold surface of the semiconductor refrigerating sheet 2 is reduced, the driver is driven to dissipate heat, the detected real-time temperature value is matched, the main controller of the driver controls the output current of the semiconductor refrigerating sheet 2, the temperature difference of the refrigerating surface is changed, and therefore the temperature of the cabinet body 1 is adjusted, the temperature in the cabinet is always kept below a preset temperature threshold value, and dew condensation caused by the fact that a certain heat source in the cabinet is lower than the current environment temperature can be avoided.
Furthermore, the device also comprises an alarm module, wherein the alarm module is connected with the control module;
and the alarm module is used for detecting whether the ambient temperature in the cabinet body 1 exceeds a preset temperature threshold value or not, and if so, giving an alarm.
Specifically, the alarm module is used for giving an alarm when the ambient temperature in the cabinet body 1 exceeds 62 ℃.
Referring to fig. 3, the condensation-prevention refrigeration method for the pitch system provided by the embodiment includes:
step S110, detecting the ambient temperature in the cabinet body;
step S120, comparing whether the ambient temperature exceeds a preset temperature threshold value, and adjusting a refrigeration module according to the comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value; wherein, the refrigeration module is arranged on the radiating fin on the cabinet body.
In an optional embodiment, the refrigeration module is a semiconductor refrigeration piece, and a cold surface of the semiconductor refrigeration piece is attached to the heat dissipation piece.
In an alternative embodiment, the method further comprises:
and detecting whether the ambient temperature in the cabinet body exceeds a preset temperature threshold value, and if so, giving an alarm.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The anti-condensation refrigerating device of the variable pitch system is characterized by comprising a cabinet body, a refrigerating module and a radiating fin, wherein the radiating fin is arranged on the cabinet body; the refrigeration module is mounted on the heat sink.
2. The anti-condensation refrigerating device of the variable pitch system according to claim 1, further comprising a control module and a temperature detection module which are installed in the cabinet body; the cooling fin, the refrigeration module and the temperature detection module are respectively connected with the control module;
the temperature detection module is used for detecting the ambient temperature in the cabinet body and sending the ambient temperature to the control module;
the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and adjusting the refrigeration module according to a comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value.
3. The anti-condensation refrigerating device of the variable pitch system according to claim 2, wherein the refrigerating module is a semiconductor refrigerating piece, and a cold surface of the semiconductor refrigerating piece is attached to the heat radiating piece;
the control module is used for comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and if so, reducing the current flowing through the semiconductor refrigeration piece so as to enable the ambient temperature to be lower than the preset temperature threshold value.
4. The anti-condensation refrigerating device of the variable pitch system according to claim 2, further comprising an alarm module, wherein the alarm module is connected with the control module;
the alarm module is used for detecting whether the ambient temperature in the cabinet body exceeds a preset temperature threshold value or not, and if so, alarming.
5. A pitch system condensation prevention refrigeration method is characterized by comprising the following steps:
detecting the ambient temperature in the cabinet body;
comparing whether the ambient temperature exceeds a preset temperature threshold value or not, and adjusting a refrigeration module according to a comparison result so as to enable the ambient temperature to be lower than the preset temperature threshold value; wherein, the refrigeration module is arranged on the heat radiating fin on the cabinet body.
6. The anti-condensation refrigerating method for the variable pitch system according to claim 5, wherein the refrigerating module is a semiconductor refrigerating piece, and a cold surface of the semiconductor refrigerating piece is attached to the heat radiating piece.
7. The pitch system condensation prevention refrigeration method according to claim 5, further comprising:
and detecting whether the ambient temperature in the cabinet body exceeds a preset temperature threshold value, and if so, giving an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388704.2A CN112484338A (en) | 2020-12-02 | 2020-12-02 | Anti-condensation refrigerating device and method for variable pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011388704.2A CN112484338A (en) | 2020-12-02 | 2020-12-02 | Anti-condensation refrigerating device and method for variable pitch system |
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| Publication Number | Publication Date |
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| CN112484338A true CN112484338A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011388704.2A Pending CN112484338A (en) | 2020-12-02 | 2020-12-02 | Anti-condensation refrigerating device and method for variable pitch system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2094713C1 (en) * | 1996-04-09 | 1997-10-27 | Открытое акционерное общество Производственно-коммерческая фирма "Магри" | Method for control of thermoelectric cooler (heater) making use of natural cold (heat) and control system for realization of this method |
| CN101957624A (en) * | 2010-09-21 | 2011-01-26 | 南车株洲电力机车研究所有限公司 | Method and system for controlling air dehumidifier of current transformer of wind power generator |
| CN201975384U (en) * | 2011-03-11 | 2011-09-14 | 安徽省黔奇电子有限公司 | Anti-condensation semiconductor refrigeration CPU (Central Processing Unit) temperature controller |
| CN202209257U (en) * | 2011-06-28 | 2012-05-02 | 南车株洲电力机车研究所有限公司 | Converter cabinet of double-fed wind turbine generator and cabin dehumidifying and condensation prevention apparatus |
| CN202551595U (en) * | 2012-03-23 | 2012-11-21 | 埃斯倍风电科技(青岛)有限公司 | Device for cooling box body of pitch system |
| CN214701326U (en) * | 2020-12-02 | 2021-11-12 | 天津瑞源电气有限公司 | Anti-condensation refrigerating device of variable pitch system |
-
2020
- 2020-12-02 CN CN202011388704.2A patent/CN112484338A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2094713C1 (en) * | 1996-04-09 | 1997-10-27 | Открытое акционерное общество Производственно-коммерческая фирма "Магри" | Method for control of thermoelectric cooler (heater) making use of natural cold (heat) and control system for realization of this method |
| CN101957624A (en) * | 2010-09-21 | 2011-01-26 | 南车株洲电力机车研究所有限公司 | Method and system for controlling air dehumidifier of current transformer of wind power generator |
| CN201975384U (en) * | 2011-03-11 | 2011-09-14 | 安徽省黔奇电子有限公司 | Anti-condensation semiconductor refrigeration CPU (Central Processing Unit) temperature controller |
| CN202209257U (en) * | 2011-06-28 | 2012-05-02 | 南车株洲电力机车研究所有限公司 | Converter cabinet of double-fed wind turbine generator and cabin dehumidifying and condensation prevention apparatus |
| CN202551595U (en) * | 2012-03-23 | 2012-11-21 | 埃斯倍风电科技(青岛)有限公司 | Device for cooling box body of pitch system |
| CN214701326U (en) * | 2020-12-02 | 2021-11-12 | 天津瑞源电气有限公司 | Anti-condensation refrigerating device of variable pitch system |
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