Unit excitation variable illumination device

Abstract

The utility model relates to unit excitation magnetic variable drying device, unit excitation magnetic variable has the cooling system of constituting by several fans, each fan export place is equipped with the heater and constitutes the hot -blast system, the hot -blast system is drying device, each fan, the heater of installing each fan export connects constant temperature control system. It is reasonable in design, simple structure, utilizes the hot -blast system, blows hot -blast to unit excitation magnetic variable when shutting down, makes unit excitation magnetic variable to be in dry environment, avoids unit excitation magnetic variable to be influenced by moisture and to break down, through the fan export place of original cooling system and adds the heater and constructs the hot -blast system, the transformation is convenient, more economic.

Description

Technical Field

[0001] This utility model relates to power generation technology, specifically to a generator excitation transformer irradiation device. Background Technology

[0002] We found that when the weather is humid, the generator unit is shut down and the excitation transformer is easily affected by moisture and may malfunction (it is fine when the unit is running, as its own heat generation is sufficient to keep it dry). Utility Model Content

[0003] In view of the above problems, this utility model proposes a generator excitation transformer drying device, which blows hot air onto the generator excitation transformer when the generator is shut down, so that the generator excitation transformer is always in a dry environment.

[0004] The technical solution of this utility model: The generator set excitation transformer has a cooling system consisting of several fans; each fan outlet is equipped with a heater to form a hot air system, which is the excitation transformer; each fan and the heater installed at each fan outlet are connected to a constant temperature control system.

[0005] When the unit is running, the constant temperature control system starts the cooling system, and each fan blows air onto the excitation transformer of the unit to accelerate airflow, effectively dissipate heat, and ensure the normal operation of the excitation transformer of the unit. When the unit is shut down, the constant temperature control system starts the hot air system, and each fan blows hot air onto the excitation transformer of the unit (the heater starts heating), so that the excitation transformer of the unit is in a dry environment and avoids the excitation transformer of the unit from being affected by moisture and causing failure.

[0006] Further refining the above technical solution, the excitation transformer of the unit is a box-type transformer, and the bottom plate of its box is a perforated plate; each fan is installed inside the box of the excitation transformer and located on the bottom plate of the excitation transformer box, with its inlet facing the bottom plate of the excitation transformer box.

[0007] Further refining the above technical solution, the heater is W-shaped. This effectively reduces airflow loss and prevents a decrease in the airflow required for cooling the excitation transformer during operation.

[0008] Further refining the above technical solution, a fan shroud is installed at the outlet of the heater, and the outlet of the fan shroud faces the three-phase coil of the generator excitation transformer.

[0009] To further refine the above technical solution, a protective net is installed at the outlet of the hood.

[0010] To further refine the above technical solution, a temperature probe is installed at the heater outlet, and the temperature probe is connected to a constant temperature control system. This effectively monitors the hot air temperature and controls the start and stop of the heater.

[0011] The advantages of this utility model are that it has a reasonable design and simple structure. It uses a hot air system to blow hot air onto the excitation transformer of the unit when it is not in operation, so that the excitation transformer of the unit is in a dry environment and avoids failure due to moisture. The hot air system is constructed by adding a heater to the fan outlet of the original cooling system, which is convenient and more economical. Attached Figure Description

[0012] Figure 1 It is a generator excitation transformer equipped with a generator excitation transformer irradiation device.

[0013] The diagram shows the generator set's excitation transformer 1, housing 1-1, three-phase coils 1-2, axial fan 2, stainless steel heater, stainless steel fan shroud 4, temperature probe 5, and constant temperature control system 6. Detailed Implementation

[0014] As shown in the figure, the excitation transformer 1 of the unit is a box-type transformer, and the bottom plate of its box 1-1 is a perforated plate; the excitation transformer 1 of the unit has a cooling system consisting of several axial flow fans 2. Each axial flow fan 2 is installed inside the box 1-1 of the excitation transformer of the unit and located on the bottom plate of the box 1-1 of the excitation transformer of the unit, with its inlet facing the bottom plate of the box 1-1 of the excitation transformer of the unit. Each axial fan 2 is equipped with a stainless steel heater 3 at its outlet, forming a hot air system, which is also a drying device; the stainless steel heater 3 is W-shaped; a stainless steel fan shroud 4 is installed at the outlet of the stainless steel heater 3, and the outlet of the stainless steel fan shroud 4 faces the three-phase coils 1-2 of the excitation transformer of the unit; a protective net is installed at the outlet of the stainless steel fan shroud 4; a temperature probe 5 is installed at the outlet of the stainless steel heater 3. Each axial fan 2, the stainless steel heater 3 installed at the outlet of each axial fan 2 is connected to the constant temperature control system 6; the temperature probe 5 is connected to the constant temperature control system 6.

[0015] The above embodiments are only for illustrating the technical concept and features of the utility model, and are intended to enable those skilled in the art to understand the content of the utility model and implement it accordingly. They should not be construed as limiting the scope of protection of the utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the utility model should be covered within the scope of protection of the utility model.

Claims

1. A generator excitation transformer irradiation device, wherein the generator excitation transformer has a cooling system consisting of several fans; characterized in that, Each fan outlet is equipped with a heater to form a hot air system, which is a drying device; each fan and the heater installed at each fan outlet are connected to a constant temperature control system. The excitation transformer of the unit is a box-type transformer, and its bottom plate is a perforated plate; each fan is installed inside the box of the excitation transformer and located on the bottom plate of the excitation transformer, with its inlet facing the bottom plate of the excitation transformer. The heater is type W; A shroud is installed at the outlet of the heater, and the outlet of the shroud faces the three-phase coil of the excitation transformer of the unit. A protective net is installed at the outlet of the air hood; A temperature probe is installed at the outlet of the heater, and the temperature probe is connected to the constant temperature control system.

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