CN211181974U

CN211181974U - Low-voltage compensation capacitor for submerged arc furnace

Info

Publication number: CN211181974U
Application number: CN202020106287.7U
Authority: CN
Inventors: 陶祥生
Original assignee: WUXI BEIKE AUTOMATION TECHNOLOGY CO LTD
Current assignee: WUXI BEIKE AUTOMATION TECHNOLOGY CO LTD
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-04
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a condenser for hot stove low pressure compensation in ore deposit, include: the air conditioner comprises a shell, a plurality of capacitance element groups and an axial flow fan, wherein the capacitance element groups are positioned in the shell, and the capacitance element groups are positioned in the shell and are spaced apart from each other to form an air duct parallel to the axis of the axial flow fan. The plurality of capacitor elements are divided into the plurality of capacitor element groups to form the air duct, so that the problem that heat is difficult to dissipate due to centralized arrangement of the capacitor elements can be effectively reduced.

Description

Low-voltage compensation capacitor for submerged arc furnace

Technical Field

The utility model relates to a hot stove field in ore deposit specifically, relates to a can effective ventilation cooling be used for hot stove low pressure compensation's in ore deposit condenser.

Background

Most of the early capacitors adopt insulating oil as a dielectric material for insulating and transferring heat of the capacitor, and the capacitor shell requires good sealing performance and cannot have oil leakage. At present, due to the requirements of specific environments such as safety, fire fighting and the like, the capacitor for the submerged arc furnace must be of a pure dry type, and has flame-retardant and explosion-proof properties. The plastic shell epoxy packaging insulating material is adopted, and the heat dissipation effect of the plastic shell epoxy packaging insulating material is far inferior to the oil immersion performance. Through monitoring to current condenser temperature rise, two assembly intermediate conductor junction temperature rises the biggest. Cooling by natural ventilation has unsatisfactory heat dissipation effect and overhigh local temperature rise.

In order to solve the problem of limited space of a field installation site, the applicant upgrades the capacity of a single capacitor, the new capacitor is designed to reach 300V 180kvar, and the rated current of the single capacitor reaches 600A. The dielectric loss of the capacitor element itself is heat-generating, and the larger the capacity is, the larger the heat generation amount is. Through experiments, in the product designed in the past, nearly hundreds of capacitor elements form an intensive capacitor, and the higher the temperature of the middle part is, the higher the damage probability of the elements is.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art, provide a can effective ventilation cooling be used for hot stove low pressure compensation's in ore deposit solution of condenser.

The utility model provides a condenser for hot stove low pressure compensation in ore deposit, include: the air conditioner comprises a shell, a plurality of capacitance element groups and an axial flow fan, wherein the capacitance element groups are positioned in the shell, and the capacitance element groups are positioned in the shell and are spaced apart from each other to form an air duct parallel to the axis of the axial flow fan.

Preferably four groups of capacitive elements are included, arranged in a row and equally spaced from each other. Further preferably, the distance of separation between adjacent groups of capacitive elements is from 1cm to 3 cm.

Preferably, four groups of capacitive elements are included, the four groups of capacitive elements being arranged in two rows with two groups of capacitive elements in each row, the lateral spacing distance between two groups of capacitive elements in each row being equal to the longitudinal spacing distance between two groups of capacitive elements in each row. Further preferably, the transverse spacing distance between two capacitor element groups in each row and the longitudinal spacing distance between two capacitor element groups in two rows are both 1cm to 3 cm.

Preferably, two axial fans are included, which are disposed on the lower plate of the housing.

Preferably, the housing is provided with a vent.

Compared with the prior art, the technical effect of this application lies in: through dividing into a plurality of capacitive element group with a plurality of capacitive element in order to form the wind channel, can effectively reduce capacitive element and arrange the problem that concentrates the heat that causes and difficult the giving off to ventilation hole on capacitor case sets up axial fan below capacitive element connects the copper conductor passageway, can be in the inside positive pressure that forms of capacitor case, in time gives off the heat that produces. The temperature inside normal electric capacity will be than ambient temperature and exceed more than 15 ℃, and long-term use still can produce the long-pending warm condition, and now after ventilating by force, can give out the box with the heat fast, does not produce the long-pending warm, and operating temperature reduces more than 10 ℃, and the capacitance decay rate reduces, the loss reduces, the reliability improves.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 shows a schematic front view of a capacitor for submerged arc furnace low voltage compensation according to an embodiment of the present invention;

fig. 2 shows a schematic view of a lower bottom plate of a housing for a capacitor for low-voltage compensation of a submerged arc furnace, which is provided with an axial flow cooling fan, according to an embodiment of the present invention;

fig. 3 shows a schematic layout of an internal capacitive element of the capacitor for low-voltage compensation of the submerged arc furnace according to the embodiment of the invention;

fig. 4 shows another internal capacitance element layout schematic diagram of the capacitor for low-voltage compensation of the submerged arc furnace according to the embodiment of the invention.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, when describing embodiments of the present application, the use of "may" mean "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

As used herein, the terms "substantially," "about," and the like are used as terms of table approximation and not as terms of table degree, and are intended to account for inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

According to the utility model discloses an embodiment proposes a condenser for hot stove low pressure compensation in ore deposit, as shown in fig. 1 to 4, it includes: the air conditioner comprises a shell 1, a plurality of capacitance element groups 2 positioned in the shell 1 and an axial flow fan 3 positioned in the shell 1, wherein the plurality of capacitance element groups 2 are spaced from each other to form an air duct 4 parallel to the axis of the axial flow fan 3. Each of the capacitive element groups includes a plurality of capacitive elements. Preferably, each group of capacitive elements comprises an equal or substantially equal number of groups of capacitive elements.

According to a preferred embodiment of the present invention, as shown in fig. 3, the capacitor for low-voltage compensation of the submerged arc furnace includes four capacitive element groups 2, the four capacitive element groups 2 being arranged in a row and spaced apart from each other at equal intervals. Preferably, the separation distance between adjacent groups of capacitive elements is from 1cm to 3 cm. Further preferably, the separation distance between adjacent groups of capacitive elements is 2 cm. Preferably, each group of capacitive elements comprises 20 to 30 capacitive elements; further preferably, each group of capacitive elements comprises 22 to 25 capacitive elements; still further preferably, the capacitor for submerged arc furnace low voltage compensation of the present invention has 96 capacitance elements, and accordingly, each capacitance element group includes 24 capacitance elements.

According to the preferred embodiment of the present invention, as shown in fig. 4, the capacitor for low-voltage compensation of the submerged arc furnace includes four capacitor element groups 2, the four capacitor element groups 2 are arranged in two rows and each row has two capacitor element groups, and the transverse spacing distance between the two capacitor element groups of each row is equal to the longitudinal spacing distance between the two capacitor element groups of each row. Preferably, the transverse spacing distance between two capacitor element groups in each row and the longitudinal spacing distance between two capacitor element groups in two rows are both 1cm to 3 cm. Further preferably, the transverse spacing distance between two capacitor element groups in each row and the longitudinal spacing distance between two capacitor element groups in two rows are both 2 cm. Preferably, each group of capacitive elements comprises 20 to 30 capacitive elements; further preferably, each group of capacitive elements comprises 22 to 25 capacitive elements; still further preferably, the capacitor for submerged arc furnace low voltage compensation of the present invention has 96 capacitance elements, and accordingly, each capacitance element group includes 24 capacitance elements.

According to the preferred embodiment of the present invention, as shown in fig. 2, the capacitor for low voltage compensation of the submerged arc furnace includes two axial fans 3 disposed on the lower bottom plate of the casing 1. Preferably, two axial fans of rated power 25w are provided. As shown in fig. 1, the housing 1 is provided with ventilation holes 5 to facilitate ventilation and heat dissipation inside the capacitor.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A capacitor for low-voltage compensation of a submerged arc furnace is characterized by comprising the following components: the air conditioner comprises a shell, a plurality of capacitance element groups and an axial flow fan, wherein the capacitance element groups are positioned in the shell, and the capacitance element groups are positioned in the shell and are spaced apart from each other to form an air duct parallel to the axis of the axial flow fan.

2. The capacitor for submerged arc furnace low voltage compensation according to claim 1, characterized by comprising four groups of capacitive elements arranged in a row and equally spaced apart from each other.

3. The capacitor for submerged arc furnace low voltage compensation according to claim 1, comprising four groups of capacitive elements arranged in two rows with two groups of capacitive elements per row, the lateral spacing distance between two groups of capacitive elements per row being equal to the longitudinal spacing distance between two groups of capacitive elements per row.

4. The capacitor for submerged arc furnace low voltage compensation according to claim 2, characterized in that the distance between adjacent groups of capacitive elements is 1cm to 3 cm.

5. The capacitor for submerged arc furnace low voltage compensation according to claim 3, characterized in that the transverse spacing distance between two capacitive element groups of each row and the longitudinal spacing distance between two capacitive element groups of each row are both 1cm to 3 cm.

6. The capacitor for submerged arc furnace low voltage compensation according to claim 1, characterized by comprising two axial fans arranged on the lower base plate of the casing.

7. The capacitor for submerged arc furnace low voltage compensation according to any of the claims 1 to 6, characterized in that the housing is provided with a vent.