CN111081458B

CN111081458B - Transformer temperature adjusting device and temperature adjusting method thereof

Info

Publication number: CN111081458B
Application number: CN201911387985.7A
Authority: CN
Inventors: 崔荣华; 宋国华; 刘立军; 袁宏均
Original assignee: Jiangsu Huandong Electric Co ltd
Current assignee: Jiangsu Huandong Electric Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2022-09-06
Anticipated expiration: 2039-12-30
Also published as: CN111081458A

Abstract

The invention discloses a temperature regulating method of a forced-ventilated type transformer temperature regulating device, which comprises a shell, a base, a fan, an air outlet plate and an air inlet plate, wherein the shell is fixed above the base, an opening is formed between the shell and the base for air to flow in, the air inlet plate is fixed at the bottom of the shell, the transformer is placed above the air inlet plate, the air outlet plate is fixed at the lower part of the upper part of the shell, and the fan is arranged at the top of the shell and used for exhausting air outwards. The invention has novel structural design, can control the air outlet flow and effectively regulate the temperature of the transformer.

Description

Transformer temperature adjusting device and temperature adjusting method thereof

Technical Field

The invention relates to the technical field of transformer temperature regulation, in particular to a transformer temperature regulation device and a temperature regulation method thereof.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.). Transformers generally use an iron core made of silicon steel as a main magnetic circuit. Thus, the magnetic field in the coil can be more concentrated, and the transformer is more compact. The core of the power transformer must be designed to prevent saturation of the magnetic circuit, and sometimes some air gaps are designed in the magnetic circuit to reduce saturation. The actually used transformer core is formed by laminating silicon steel sheets with very thin and large resistance. This reduces the losses and heat generation associated with each layer of eddy current. Power transformers and audio circuits have similarities. Typical laminated cores are generally in the shape of E and I letters, called "EI transformers". One problem with such cores is that residual magnetism is maintained in the core after a power failure. When power is applied again, the residual magnetism causes the core to temporarily saturate. For some transformers with capacities in excess of hundreds of watts, the inrush current can cause the main fuse to blow if no current limiting circuit is used. More seriously, for large power transformers, the inrush current can cause deformation and damage to the primary winding. When the transformer works, the over-high temperature and the over-low temperature are both unfavorable, and the over-low temperature affects the transformer.

Disclosure of Invention

The invention aims to provide a transformer temperature adjusting device and a temperature adjusting method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a temperature adjusting method of a transformer temperature adjusting device comprises a shell, a base, a fan, an air outlet plate and an air inlet plate, wherein the shell is fixed above the base, an opening is formed between the shell and the base for air to flow in, the air inlet plate is fixed at the bottom of the shell, the transformer is placed above the air inlet plate, the air outlet plate is fixed at the lower part of the upper part of the shell, and the fan is arranged at the top of the shell and used for exhausting air outwards;

a plurality of air outlet holes are formed in the air outlet plate, a temperature sensor is arranged in the middle of each air outlet hole, and the temperature sensor is connected with a control system;

the air inlet plate is provided with a plurality of air inlets, an electric heating wire is arranged above each air inlet, and a transformer bracket is arranged above the air inlet plate;

an electric rotating part is fixed near each air inlet below the air inlet plate, a wind shield is fixed on the electric rotating part, and the electric rotating part is connected with a control system;

the temperature adjusting method comprises the following steps:

when the average temperature of the air passing through the air outlet is too high, the electric heating wire does not work, the system improves the rotating speed of the fan and the air flow speed, and the electric rotating piece rotates the wind shield to enlarge the opening of the air inlet and increase the air inflow;

when the average temperature of the air passing through the air outlet is too low, the system controls the power of the electric heating wire to heat the air passing through the air inlet, reduces the rotating speed of the fan and the air flow speed, and rotates the wind shield through the electric rotating piece to reduce the opening of the air inlet and the air inflow, so that the electric heating wire can conveniently improve the temperature of the air around the transformer;

when the temperature of the air outlet holes is unbalanced, the electric rotating part is independently controlled to enable the lower part of the area with higher temperature or lower temperature to correspond to the opening of the air inlet hole, and the temperature of all the air outlet holes is balanced by increasing or reducing the air inflow of the area.

Compared with the prior art, the invention has the beneficial effects that:

the invention has novel structural design, can control the air outlet flow, effectively adjusts the temperature of the transformer, can uniformly adjust the temperature of the air outlet holes, and can ensure the balance of the temperature of the air outlet holes.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic diagram of a gas outlet structure according to the present invention;

FIG. 4 is a schematic view of the structure of the intake plate of the present invention;

FIG. 5 is a bottom view of the intake plate of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; 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.

Referring to fig. 1-5, the present invention provides a technical solution: a temperature adjusting method of a transformer temperature adjusting device comprises a shell 2, a base 3, a fan 4, an air outlet plate 5 and an air inlet plate 6, wherein the shell 2 is fixed above the base 3, an opening is formed between the shell 2 and the base 3 for air to flow in, the air inlet plate 6 is fixed at the bottom of the shell 2, a transformer 1 is placed above the air inlet plate, the air outlet plate 5 is fixed at the lower part of the upper part of the shell 2, and the fan 4 is arranged at the top of the shell and used for exhausting air outwards;

in the invention, a plurality of air outlet holes 7 are arranged on the air outlet plate 5, a temperature sensor 8 is arranged in the middle of each air outlet hole 7, and the temperature sensor is connected with a control system. In the invention, a plurality of air inlet holes 9 are arranged on the air inlet plate 6, an electric heating wire 10 is arranged above each air inlet hole 9, and a transformer bracket 11 is arranged above the air inlet plate 6.

In addition, in the invention, an electric rotating member 12 is fixed near each air inlet below the air inlet plate 6, a wind shield 13 is fixed on the electric rotating member 12, and the electric rotating member 12 is connected with a control system.

The temperature adjusting method comprises the following steps:

In conclusion, the structure of the invention is novel in design, the air outlet flow can be controlled, the temperature of the transformer can be effectively adjusted, the temperature of the air outlet holes can be uniformly adjusted, and the balance of the temperature of the air outlet holes can be ensured.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A temperature adjusting method of a transformer temperature adjusting device is characterized by comprising the following steps: the transformer temperature adjusting device comprises a shell (2), a base (3), a fan (4), an air outlet plate (5) and an air inlet plate (6), wherein the shell (2) is fixed above the base (3), an opening is formed between the shell (2) and the base (3) for air to flow in, the air inlet plate (6) is fixed at the bottom of the shell (2), the transformer (1) is placed above the air inlet plate, the air outlet plate (5) is fixed at the lower part of the upper part of the shell (2), and the fan (4) is arranged at the top of the shell and used for exhausting air outwards; a plurality of air outlet holes (7) are formed in the air outlet plate (5), a temperature sensor (8) is arranged in the middle of each air outlet hole (7), and the temperature sensor is connected with a control system; a plurality of air inlet holes (9) are formed in the air inlet plate (6), an electric heating wire (10) is arranged above each air inlet hole (9), and a transformer support (11) is arranged above the air inlet plate (6); an electric rotating part (12) is fixed near each air inlet below the air inlet plate (6), a wind shield (13) is fixed on the electric rotating part (12), and the electric rotating part (12) is connected with a control system;

the temperature adjusting method comprises the following steps:

when the average temperature passing through the air outlet is too low, the system controls the power of the electric heating wire to heat air passing through the air inlet, reduces the rotating speed of the fan and the air flow speed, rotates the wind shield through the electric rotating piece to reduce the opening of the air inlet and reduce the air inflow, so that the electric heating wire can conveniently improve the temperature of the gas around the transformer;