CN211295935U

CN211295935U - Dust removal evaporation type cooling ventilation device for low-voltage compensation capacitor cabinet of submerged arc furnace

Info

Publication number: CN211295935U
Application number: CN202020308869.3U
Authority: CN
Inventors: 陶祥生
Original assignee: WUXI BEIKE AUTOMATION TECHNOLOGY CO LTD
Current assignee: WUXI BEIKE AUTOMATION TECHNOLOGY CO LTD
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-08-18
Anticipated expiration: 2030-03-13

Abstract

The utility model relates to a dust removal evaporation formula cooling ventilation unit for hot stove low pressure compensation capacitor box in ore deposit, including evaporation formula air-cooler and centrifugal fan, the air outlet of evaporation formula air-cooler through first induced air pipeline with centrifugal fan's air intake intercommunication, centrifugal fan's air outlet passes through the air intake intercommunication of second induced air pipeline and capacitor box, the capacitor box still is provided with the air outlet. The utility model discloses a wind regime air that is used for hot stove low pressure compensation capacitor box in ore deposit to remove dust evaporation formula cooling ventilation device to introduce is behind dust removal evaporation formula air-cooler, and dust content is showing and is reducing, and the temperature reduces by a wide margin, can reduce the device fault rate, makes the long-term steady operation of low pressure compensation equipment.

Description

Dust removal evaporation type cooling ventilation device for low-voltage compensation capacitor cabinet of submerged arc furnace

Technical Field

The utility model relates to a hot stove technical field in ore deposit, more specifically relates to a dust removal evaporation formula cooling ventilation unit for hot stove low pressure compensation capacitor box in ore deposit.

Background

With the maturity of low-voltage compensation technology, low-voltage compensation equipment is greatly popularized and accepted and determined by domestic large submerged arc furnace user units. When the low-voltage compensation equipment of the submerged arc furnace works, the heating value is large, the environmental temperature of the equipment is high, and the environmental dust content is large. Most of the ore-smelting furnaces are used in western regions in China, such as inner Mongolia, Shaanxi, Ningxia and Xinjiang, and in foreign countries, such as south Africa and other high-temperature regions. Wherein the outdoor temperature of some places in summer (such as hami, Changji, Aksu and the like in China) is as high as 40-55 ℃. Although the components of the low-voltage compensation equipment of the submerged arc furnace have higher temperature resistance and dust resistance compared with the components of the conventional compensation equipment, the components are in the environment of high temperature and high dust for a long time and are one of the important reasons for the relatively short service life of the components of the low-voltage compensation equipment. Therefore, the temperature of the components of the low-voltage compensation equipment is reduced, and the working environment of the components is improved, which is a necessary research direction for product designers.

Early schemes in this area were: a small axial flow fan is arranged at the upper part of the low-voltage compensation single compensation cabinet body, and the fan dissipates heat generated in the cabinet to the outside of the cabinet. The disadvantages of this solution are: the heat dissipation efficiency is low, and the cooling effect on element devices in the capacitor cabinet is low; and airflow negative pressure is formed in the capacitor cabinet, so that accumulation of dust in the capacitor cabinet is aggravated. The solution currently used by the applicant (patent No. 201821607336.4) is: the low-voltage compensation cabinet is provided with a ventilation air duct, the air duct is connected with a ventilation air pipe through a high-power centrifugal fan, and a relatively low-temperature clean natural air source is introduced into the capacitor cabinet to reduce the working temperature of components; this electric capacity cabinet malleation radiating mode is more high-efficient reasonable. This scheme can keep the positive pressure of cooling air in the capacitor box, can obviously reduce the dust in the cabinet and pile up, but the wind regime that heat abstractor can get is the natural wind regime that compares capacitor box operational environment temperature slightly lower, consequently has following shortcoming: the function of reducing the temperature of the natural wind source is not provided. In summer, the environmental temperature in most domestic areas exceeds 35-40 ℃, the temperature in other global areas (such as Africa) is higher, and the cooling effect of elements in the cabinet is not obvious; the dust of the wind source that the device ventilates does not have and filters through the dust removal, and the dust in the electric capacity cabinet also can pile up the increase through long-time accumulation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a take the place of in view of above-mentioned problem, its aim at provides a dust removal evaporation formula cooling ventilation unit for hot stove low pressure compensation capacitor box in ore deposit.

According to the utility model discloses an aspect provides a dust removal evaporation formula cooling ventilation device for hot stove low pressure compensation capacitor box in ore deposit, including evaporation formula air-cooler and centrifugal fan, evaporation formula air-cooler's air outlet through first induced air pipeline with centrifugal fan's air intake intercommunication, centrifugal fan's air outlet passes through the air intake intercommunication of second induced air pipeline with the capacitor box, the capacitor box still is provided with the air outlet.

According to the utility model discloses further preferred embodiment, the evaporation formula air-cooler is arranged in the open air of keeping away from the electric capacity cabinet, partly being located outdoors of first induced air pipeline, another part is located the indoor at electric capacity cabinet place.

According to the utility model discloses further preferred embodiment, the air intake of electric capacity cabinet set up in the lower part or the bottom of electric capacity cabinet, the air outlet of electric capacity cabinet set up in the upper portion or the top of electric capacity cabinet.

According to the utility model discloses further preferred embodiment, the evaporation formula air-cooler includes the wet curtain of evaporation and is located the dustproof filter screen in the wet curtain outside of evaporation.

According to a further preferred embodiment of the invention, at least a part of the first draft tube is constructed from a soft tube.

According to a further preferred embodiment of the present invention, the first induced draft duct and the second induced draft duct are both constructed of soft piping.

The utility model discloses a dust removal evaporation formula cooling ventilation unit for hot stove low pressure compensation capacitor box in ore deposit is applicable to dry high temperature area (domestic area includes inner Mongolia, Shanxi, Ningxia, Xinjiang etc.; foreign area includes south Africa, Libiya, Arabia etc. ground), and the wind regime air that the device introduced is after dust removal evaporation formula air-cooler, and dust content is showing and is reducing, and the temperature reduces by a wide margin, can reduce the device fault rate, makes the long-term steady operation of low pressure compensation equipment; the temperature of the inlet air can be reduced by 6-12 ℃ compared with the ambient temperature. Under the condition of lower environmental temperature such as autumn and winter, a water pump in the dust removal evaporative type air cooler can be closed, the refrigeration function is stopped, and the air dust removal function is independently used. The cooling air provided by the device has large flow, low energy consumption, low noise, stable operation, long service life and high efficiency; the evaporative dust removal air cooler is convenient to maintain, when the filter screen and the wet curtain are full of dust, the filter screen and the wet curtain can be cleaned and dried for reuse, and the wet curtain is convenient to replace after the service life of the wet curtain is over.

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 dust removal evaporative cooling ventilation device for a low-voltage compensation capacitor cabinet of a submerged arc furnace according to a first embodiment of the invention;

fig. 2 shows a dedusting evaporative cooling ventilation device for a low-voltage compensation capacitor cabinet of a submerged arc furnace according to a second embodiment of the invention.

Detailed Description

Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the relative arrangement of parts, numerical representations and numerical values described in these embodiments does not limit the scope of the present invention unless specifically stated otherwise. It should be noted that the following embodiments do not limit the scope of the present invention recited in the claims, and not all combinations of features described in the embodiments are essential to the present invention.

According to the utility model discloses an embodiment provides a dust removal evaporation formula cooling ventilation device for hot stove low pressure compensation capacitor box in ore deposit. As shown in fig. 1 and 2, the utility model discloses a dust removal evaporation formula cooling ventilation device for hot stove low pressure compensation capacitor box in ore deposit includes evaporation formula air-cooler 1 and centrifugal fan 2, and evaporation formula air-cooler 1's air outlet communicates through first induced air pipeline 3 and centrifugal fan 2's air intake, and centrifugal fan 2's air outlet communicates through the air intake of second induced air pipeline 4 with capacitor box 5, and capacitor box 5 still is provided with the air outlet. After an external air source is cooled and dedusted by the evaporative air cooler, the external air source is introduced into the capacitor cabinet by the high-power centrifugal fan to cool components, so that the temperature of the components in the capacitor cabinet can be effectively reduced, and the interior of the capacitor cabinet is kept clean.

The principle of evaporative cooling is that the air temperature is reduced by utilizing the heat-insulating humidifying and cooling process through the principle of water evaporation heat absorption to cool the space temperature. Evaporative cooling requires water consumption, but the consumption is small, and 1kg of water evaporated has about 2500kJ latent heat. Since evaporative cooling uses spray circulating water to cool the air, it will cause a certain increase in air humidity. However, air is dry in northern, middle and western regions (such as inner Mongolia, Shaanxi, Ningxia, Xinjiang and the like) and in foreign regions (such as south Africa, Libiya, Arabia and the like), and the air humidity is increased little by using the cooling mode, so that the components in the capacitor cabinet are not influenced. Therefore the utility model discloses on current electric capacity cabinet positive wind pressure radiating basis, get wind source mouth position and designed evaporation formula dust removal air-cooler equipment, be equipped with elements such as dustproof filter screen, evaporation wet curtain, circulating water pump in the evaporation formula dust removal air-cooler.

According to the preferred embodiment of the present invention, as shown in fig. 2, the evaporative air cooler 1 is disposed outside the room far from the capacitor box 5, and one part of the first air guiding duct 3 is located outside the room, and the other part is located inside the room where the capacitor box is located. The arrangement mode is particularly suitable for the occasions of arranging the electric accommodating chambers specially used for placing the capacitor cabinets. For applications without an electrical compartment, such as capacitor cabinets in large buildings and other relatively open environments, an open cooling arrangement as shown in fig. 1 is preferred.

According to the utility model discloses a preferred embodiment, the air intake of electric capacity cabinet 5 sets up in the lower part or the bottom of the cabinet body, and the air outlet sets up in the upper portion or the top of the cabinet body to can carry out abundant ventilation cooling to all parts in the cabinet body.

According to the utility model discloses a preferred embodiment, evaporation formula air-cooler 1 includes the wet curtain of evaporation and is located the dustproof filter screen in the wet curtain outside of evaporation. The natural wind source can filter large granule foreign matter, dust through the dustproof filter screen of air-cooler, filters tiny dust particle through the wet curtain adsorbability of evaporation to avoid the dust to get into in the electric capacity cabinet by outside wind source.

According to a preferred embodiment of the invention, at least a part of the first draft tube 3 is constructed of a soft tube. Further preferably, both the first induced draft duct 3 and the second induced draft duct 4 are constructed of soft ducts. For example, plastic or rubber tubing.

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. The dust removal evaporation type cooling and ventilating device for the low-voltage compensation capacitor cabinet of the submerged arc furnace is characterized by comprising an evaporation type air cooler and a centrifugal fan, wherein an air outlet of the evaporation type air cooler is communicated with an air inlet of the centrifugal fan through a first air guide pipeline, an air outlet of the centrifugal fan is communicated with an air inlet of the capacitor cabinet through a second air guide pipeline, and the capacitor cabinet is further provided with an air outlet.

2. The evaporative cooling and ventilating device for low-voltage compensation capacitor box of submerged arc furnace as claimed in claim 1, wherein the evaporative air cooler is disposed outdoors far away from the capacitor box, and one part of the first air guiding duct is located outdoors and the other part is located indoors where the capacitor box is located.

3. The evaporative cooling ventilation device for low-voltage compensation capacitor cabinet of submerged arc furnace as claimed in claim 1, wherein the air inlet of the capacitor cabinet is disposed at the lower part or bottom of the capacitor cabinet, and the air outlet of the capacitor cabinet is disposed at the upper part or top of the capacitor cabinet.

4. The evaporative cooling ventilation device for the submerged arc furnace low-voltage compensation capacitor cabinet as claimed in claim 1, wherein the evaporative air cooler comprises an evaporative wet curtain and a dustproof filter screen positioned outside the evaporative wet curtain.

5. The evaporative cooling ventilation unit for a submerged arc furnace low pressure compensation capacitor cabinet as defined in claim 1, wherein at least a portion of the first induced draft duct is constructed of a soft duct.

6. The evaporative cooling ventilation device for low-voltage compensation capacitor cabinets of submerged arc furnaces as claimed in claim 1, wherein the first induced draft duct and the second induced draft duct are both constructed of soft ducts.