Heat meter with anti-scaling structure

Abstract

The invention provides a heat meter with an anti-scaling structure. The anti-scaling structure comprises a Y-shaped pipe shell and a sealing cover located at the tail end of a branch pipe of the shell, wherein an accommodating space formed by the shell and the sealing cover is internally provided with a filter screen, a magnetic column and a bottom support, the bottom support is located in the sealing cover, the filter screen and the magnetic column are located on the bottom support, the magnetic column is located at the periphery of the filter screen, the upper surface of the magnetic columnis lower than the upper surface of the filter screen, the shell is internally provided with an annular boss used for pressing against the upper surface of the filter screen, the filter screen is funnel-shaped, and the sealing cover is provided with a blow-off valve. The heat meter has the beneficial effects that the magnetic column is located at the periphery of the filter screen, a process of filtering large-particle suspended matters, sediment and the like is carried out in the filter screen, and scrap iron in water flowing from the filter screen is attracted by the magnetic column, so thatscale prevention and rust prevention are performed in two relatively independent spaces, and the scale removing efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of heat meters, and in particular relates to a heat meter with an anti-scaling structure. Background technique [0002] In the prior art, a heat meter filter is generally used when installing the heat meter, and the filter can effectively prevent problems such as non-metering caused by blockage of the heat meter due to dirt or rust. The structure of the filter is shown in the patent CN 202315523U as a cylindrical filter screen, a cylindrical magnet and a detachable dredging bolt, and the cylindrical filter screen is sleeved outside the cylindrical magnet. The above structure has the following defects: (1) the dredging bolt is inconvenient to disassemble, which is not conducive to the need for dredging at any time; (2) the cylindrical magnet is located in the filter screen, and silt will accumulate around the magnet during actual use, which is not conducive to the desilting of the magnet. Adsorption of iron ...

AI Technical Summary

Problems solved by technology

The above structure has the following defects: (1) the dredging bolt is inconvenient to disassemble, which is not conducive to the need for dredging at any time; (2) the cylindrical magnet is located in the filter screen, and silt will accumulate around the magnet during actual use, which is not conducive to the desilting of the magnet. Adsorption of iron filings, etc.; (3) The cylindrical magnet is located in the filter screen, has a small volume, and has a small contact area with the water flow, which is also unfavorable for adsorption of iron filings, etc. The present invention is aimed at the above technical problems make improvements

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