CN214701326U

CN214701326U - Anti-condensation refrigerating device of variable pitch system

Info

Publication number: CN214701326U
Application number: CN202022849943.5U
Authority: CN
Inventors: 李晓峰; 关伟; 苏倩; 刘春波; 豆建鹏; 韩昊
Original assignee: Tianjin Ruiyuan Electrical Co ltd
Current assignee: Tianjin Ruiyuan Electrical Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-11-12
Anticipated expiration: 2030-12-02

Abstract

The utility model provides a condensation-preventing refrigerating device of a variable pitch system, relating to the technical field of wind power generation systems; the refrigerator 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 utility model discloses can reduce the interior temperature of change oar system cabinet, when guaranteeing the refrigeration effect, effectively prevent the emergence of condensation in the cabinet, guarantee the operation of system safety and stability.

Description

Anti-condensation refrigerating device of variable pitch system

Technical Field

The utility model relates to a wind power generation system technical field, in particular to become anti-condensation refrigerating plant of oar 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.

SUMMERY OF THE UTILITY MODEL

The utility model provides a become oar system and prevent condensation refrigerating plant can reduce the temperature in the oar system cabinet of becoming, when guaranteeing the refrigeration effect, effectively prevents the emergence of condensation in the cabinet, ensures the operation of system safety and stability.

The embodiment of the utility model provides a pitch system condensation-prevention refrigerating device, which comprises 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.

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 an optional embodiment, the semiconductor cooling plate is TEC 1-12703.

The utility model has the advantages that: the utility model discloses a pitch system condensation preventing device comprises a cabinet body, a refrigeration module and a cooling fin, wherein the cooling fin is arranged on the cabinet body, and the embodiment is arranged on the cooling fin through the refrigeration module, so that the refrigeration module directly acts on a heating source of the pitch system, the heat of the cooling fin is radiated to a hub environment after refrigeration, the highest temperature of the temperature rise is reduced, and the temperature in the whole cabinet is reduced; 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 utility model discloses can reduce the interior temperature of change oar system cabinet, when guaranteeing the refrigeration effect, effectively prevent the emergence of condensation in the cabinet, ensure the operation of system safety and stability.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the anti-condensation refrigerating device of the 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 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 described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

For the convenience of understanding this embodiment, it is right below through the embodiment that the utility model discloses a become oar system and prevent condensation refrigerating plant and describe in detail.

Referring to fig. 1, an embodiment of the present invention provides a condensation-prevention refrigeration device for a pitch system, 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.

Here, 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.

The control module may be a main controller of the pitch system drive or 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.

Here, the control module is configured to compare whether the ambient temperature exceeds a preset temperature threshold, and if so, reduce the current flowing through the semiconductor chilling plate 2 so as to make the ambient temperature lower than the preset temperature threshold.

In the embodiment, the semiconductor refrigerating plate 2TEC1-12703 is adopted, the cold surface of the semiconductor refrigerating plate is directly attached to the driver radiating fin 3 and is back-to-back with the driver IGBT, so that heat is directly exchanged, the hot surface is arranged at one end away from the radiating fin 3, and the heat is radiated to the hub environment through the radiating fan of the radiating fin 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, and the alarm module is connected with the control module.

Specifically, the alarm module is used for detecting whether the ambient temperature in the cabinet body 1 exceeds a preset temperature threshold value, and if so, alarming.

The alarm module is used for giving an alarm when the ambient temperature in the cabinet body 1 exceeds 62 ℃.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, 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 meaning 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, and are not intended to limit the technical solution of the present invention, 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: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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.

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.

4. The anti-condensation refrigeration 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.

5. The pitch system condensation-preventing refrigeration device according to claim 3, wherein the semiconductor refrigeration piece is TEC 1-12703.