Overhead type pump valve system in self-heating tank

Abstract

The invention relates to an overhead type pump valve system in a self-heating tank. The overhead type pump valve system comprises a motor, a pump and a pitch pipe, the motor is mounted at the top of apitch tank through a supporting pipe and a supporting flange and located outside the pitch tank, and the supporting pipe and the supporting flange are connected through a threaded fastening piece; the pump and the pitch pipe are both mounted at the top of an inner cavity of the pitch tank through a bearing cavity, the bearing cavity is provided with a flange edge and fixed on the top inner wall of the pitch tank through a bolt, the output shaft of the motor is connected with the input shaft of the pump through a coupler, and the tank wall of the tank top of the pitch tank is provided with a through hole which allows the coupler to pass through. The motor, the pump and the pitch pipe are arranged on the top of the pitch tank and the pump and the pitch pipe are built-in, because the pitch tank does not fill up usually and the pump and the pitch pipe are packaged into the bearing cavity and located at the top of the inner cavity of the pitch tank, so that the pump and the pitch pipe canbe protected from being polluted by pitch, the pump and the pitch pipe are heated by utilizing the evapotranspiration heat of the pitch, the pitch is pumped out while being heated, thus self-heating is achieved, and excessive energy is not consumed.

Description

technical field [0001] The invention relates to an asphalt pavement maintenance vehicle, in particular to a pump valve system of an asphalt tank of the asphalt pavement maintenance vehicle, and belongs to the technical field of pavement maintenance devices. Background technique [0002] The maintenance of the existing asphalt pavement and cement concrete pavement is an important part of road construction. Due to the wear and impact of the wheels, the erosion and weathering of natural forces such as heavy rain, flood, sandstorm, ice and snow, sun exposure, ice melting or man-made damage will Many diseases such as potholes, mud pumping, cracks, wrapping, network cracks, and subgrade subsidence have occurred. Regular maintenance of the road surface is required, and asphalt and aggregates are added to the defects. [0003] During road maintenance, the asphalt in the tank is pumped out with a pump. In order to avoid asphalt pollution, the pump and pipeline are installed outside t...

AI Technical Summary

Problems solved by technology

[0003] During road maintenance, the asphalt in the tank is pumped out with a pump. In order to avoid asphalt pollution, the pump and pipeline are installed outside the asphalt tank. Since the asphalt solidifies at low temperature and loses fluidity, an additional heating device is required to heat and keep the asphalt warm. To maintain its fluidity, the heating device not only greatly increases the manufacturing cost and use cost of the asphalt pavement maintenance vehicle, but also increases the weight of the asphalt pavement maintenance vehicle

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