Breathing thermal-insulating device for vent shaft

Abstract

The invention discloses a ventilating shaft respiratory warmer. It includes respiratory chassis and upper cover board placed on top of the respiratory chassis, the upper cover board is equipped with bidirectional respiratory through-hole, the valve base sealed mouth of upper cover board is equipped with a set of respiratory movement components, the respiratory movement components presses itself on the sealed valve base through the guiding of conductor bar installed in the upper cover board. The invention has reasonable structure; the cover board is equipped with bidirectional respiratory channel. According the respiratory cover board on the respiratory channel, the warmer separates the inside and outside air in normal condition to preventing rain and other debris into well and the bad smell out from the well into air and pollution; when the channel needs respiratory, the respiratory cover is opened by the differential pressure between the inside and outside well to ensuring the air input and output needed, and it also can protect the devices in well in cold areas to ensuring the pressure water conduit safe operation.

Description

technical field [0001] The invention relates to a valve well or ventilation well cover on a water delivery and drainage pipeline, in particular to a breathing warmer for a ventilation well generally used as an air valve well cover of a pressurized water delivery and drainage pipeline. Background technique [0002] Urban pressurized water pipelines are generally equipped with an air valve every 1KM to discharge the air in the pipeline. When there is negative pressure in the pipeline, the air valve will also inject air into the pipeline to avoid damage caused by excessive negative pressure in the pipeline. , but the existing air valve well cover has no inlet and exhaust passages. When the pipeline is exhausted, the well cover will be flushed open, and dirt will easily enter the valve well. The speed is almost zero, and most of the suction function of the air valve is lost, resulting in pipeline damage accidents. The ventilation inspection manhole cover on the ordinary drainage...

AI Technical Summary

Problems solved by technology

[0002] Urban pressurized water pipelines are generally equipped with an air valve every 1KM to discharge the air in the pipeline. When there is negative pressure in the pipeline, the air valve will also inject air into the pipeline to avoid damage caused by excessive negative pressure in the pipeline. , but the existing air valve well cover has no inlet and exhaust passages. When the pipeline is exhausted, the well cover will be flushed open, and dirt will easily enter the valve well. The speed is almost zero, and most of the suction function of the air valve is lost, resulting in pipeline damage accidents. The ventilation inspection manhole cover on the ordinary drainage pipeline is not sealed so that it is directly connected to the atmosphere, so that the odor in the pipeline naturally enters the city streets and residential areas. Affect urban air quality, cause deterioration of urban environmental quality, and cause adverse effects on residents' health and emotions

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