CN111081458A

CN111081458A - Temperature regulating method of forced-ventilated type transformer temperature regulating device

Info

Publication number: CN111081458A
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: 2020-04-28
Anticipated expiration: 2039-12-30
Also published as: CN111081458B

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

Temperature regulating method of forced-ventilated type transformer temperature regulating device

Technical Field

The invention relates to the technical field of transformer temperature regulation, in particular to a temperature regulation method of a forced-ventilated type transformer temperature regulation device.

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 iron 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 energized 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. The transformer is unfavorable when the temperature is too high and too low during operation, and the transformer life-span is influenced to the temperature is too low, and when the temperature is too high, transformer efficiency reduces. The existing cooling device for the transformer, particularly the dry-type transformer, is simple, most of the cooling devices utilize natural wind for cooling, and the cooling device cannot control the air flow distribution and achieve the aim of temperature control.

Disclosure of Invention

The invention aims to provide a temperature regulating method of a forced-ventilated type transformer temperature regulating device, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a forced-ventilated formula transformer attemperator, includes shell, base, fan, the board and the air inlet plate of giving vent to anger, the shell is fixed in the base top, there is the opening air feed body to flow in between shell and base, the shell bottom is fixed with the air inlet plate, the transformer is placed to the air inlet plate top, the part is fixed with the air outlet plate on the lower side on shell upper portion, the shell top is equipped with fan 4 and is used for outside exhaust gas.

Preferably, 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 the control system.

Preferably, a plurality of air inlets are formed in the air inlet plate, an electric heating wire is arranged above each air inlet, and a transformer support is arranged above the air inlet plate.

Preferably, 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.

Preferably, the temperature adjusting method comprises the following steps:

A. 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;

B. when the average temperature passing through the air outlet is too low, the system controls the power of the electric heating wire according to the optimal scheme 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;

C. when the temperature through the venthole is unbalanced, can make the opening of the lower part of the higher or lower region of temperature corresponding inlet port of temperature by the electronic rotating member of independent control, reach and make all ventholes temperature balanced through increaseing or reducing regional air input.

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.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a forced-ventilated formula transformer attemperator, includes shell 2, base 3, fan 4, air outlet plate 5 and air inlet plate 6, shell 2 is fixed in base 3 top, there is the opening air feed body to flow in between shell 2 and

base

3, 2 bottoms of shell are fixed with air inlet plate 6, transformer 1 is placed to the air inlet plate top, 2 upper portion parts of shell are fixed with air outlet plate 5, the shell top is equipped with fan 4 for outside exhaust gas.

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 part 12 is fixed near each air inlet hole 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 working principle is as follows: 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a forced-ventilated formula transformer temperature adjusting device which characterized in that: including shell (2), base (3), fan (4), air outlet plate (5) and air inlet plate (6), shell (2) are fixed in base (3) top, there is the opening air feed body to flow in between shell (2) and base (3), shell (2) bottom is fixed with air inlet plate (6), transformer (1) is placed to air inlet plate top, shell (2) upper portion part under to is fixed with air outlet plate (5), the shell top is equipped with fan (4) for outside exhaust gas.

2. The temperature regulating device of the forced-ventilated type transformer of claim 1, wherein: be equipped with a plurality of ventholes (7) on air outlet plate (5), be equipped with temperature sensor (8) in the middle of venthole (7), temperature sensor is connected with control system.

3. The temperature regulating device of the forced-ventilated type transformer of claim 1, wherein: the air inlet plate (6) is provided with a plurality of air inlet holes (9), 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).

4. The temperature regulating device of the forced-ventilated type transformer of claim 1, wherein: 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.

5. The temperature regulating method for realizing the temperature regulating device of the forced-ventilated type transformer in the claim 1 is characterized by comprising the following steps of: the temperature adjusting method comprises the following steps: