Automatic sewage suction device and filter device

Abstract

The invention relates to an automatic dirt suction device and a filtering device. The automatic dirt suction device comprises a dirt sucking mechanism and a control circuit, wherein the dirt sucking mechanism contains a dirt sucking tank and a vacuum pump; a dirt sucking opening is formed in the upper part of the dirt sucking tank; a dirt sucking opening electromagnetic valve is arranged at the dirt sucking opening; when the dirt sucking opening electromagnetic valve is opened, the dirt sucking opening is communicated with the interior of the dirt sucking tank; an air sucking opening of the vacuum pump is communicated with the interior of the dirt sucking tank; an exhaust port of the vacuum pump is communicated with the outside; a dirt outlet is formed in the lower part of the dirt sucking tank; a dirt outlet valve is arranged on the dirt outlet; the dirt sucking opening electromagnetic valve and a power supply end of the vacuum pump are connected with the control circuit. The filtering device comprises the automatic dirt suction device and a filter, wherein a dirt discharging opening of the filter is communicated with the dirt sucking opening in the dirt sucking tank. The automatic dirt suction device provided by the invention is high in suction force and high in automation degree; the trouble that a filter element of the filter is regularly replaced or cleaned can be avoided because of the filtering device, so that time and labor are saved.

Description

(1) Technical field: [0001] The invention relates to a dirt suction device and a filter device, in particular to an automatic dirt suction device and a filter device. (two), background technology: [0002] At present, the environment and development are the focus issues of common concern in all countries in the world. Development must not only meet the needs of contemporary people, but also consider not compromising the living conditions of future generations. Therefore, protecting the environment on which human beings depend has become a common concern of the world. Entering the 21st century, harmful gases discharged from automobiles, ships, thermal power plants and industrial kilns have become more and more serious in air pollution, and its negative effects on the world environment are also increasing. These gases not only contain various toxic substances , but also cause PM2.5 pollution, which is especially harmful to human health. [0003] The main pollutants of automob...

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Problems solved by technology

[0006] In response to these problems, some gas purification devices have appeared on the market. Most of these purification devices use circulating absorption liquid to absorb harmful gases and smoke particles, and the absorbed particles are filtered out through filters. When the filters are used for a period of time After that, the filter element is easy to be blocked, which affects the filtering effect. At this time, the filter needs to be disassembled for cleaning, or the filter can be replaced directly; if the gas purification device is used for a long time, the filter needs to be cleaned or replaced frequently , it is inconvenient to use

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