Method for refitting common water meter into frost crack prevention water meter

Abstract

The invention discloses a method for converting a common water meter into a frost crack prevention water meter. The method comprises utilization of a water meter shell, a water yield metering device and a frost crack prevention tissue material, and an arranging method of the frost crack prevention tissue material. The water meter shell and the water yield metering device can form a complete conventional water meter which is not resistant to a frost crack. The method is characterized in that the frost crack prevention tissue is provided with a flexible deformation material which comprises a main flexible deformation layer material, a water meter shell surface adsorption force changing material, a smooth outer layer capable of contacting with water in the meter, and the frost crack prevention tissue is closely connected with the inner surface of the water meter shell. According to the method, the water flows smoothly and the resistance is small; thermal insulation is achieved, the overcooling icing speed is reduced, and the ice body forming sequence and structural mode when icing are improved; the abnormal expansion caused by water icing can be automatically compensated in real time, and the crack and dissolution of the ice are accelerated; damage to the flexible deformation material caused by repeated squeezing of the ice body structure is avoided; and the molding manufacture is convenient, the cost is low and the original production line can be continued to be used.

Description

technical field [0001] The invention relates to the field of water meters, in particular to a method for refitting an ordinary water meter into an anti-freezing and cracking water meter. Background technique [0002] When the existing water meters are used in winter, they are sometimes damaged by freezing due to the cold weather. Especially in northern my country, the water meters installed and used outdoors often cause the glass cover of the water meter to freeze and crack, making the water meter unable to use normally. The main reason for the freezing damage of the above-mentioned water meter is that after the water meter is frozen at a cold temperature, when the water in the meter changes from a liquid state to a solid state, its volume will increase and a certain expansion force will be generated, so that the weakest point of the water meter— —The glass cover of the water meter is broken, and even other components inside the meter are damaged, thereby affecting the norma...

AI Technical Summary

Problems solved by technology

[0002] When the existing water meters are used in winter, the situation of freezing due to the cold weather occurs from time to time, especially in the north of my country, the water meters installed and used outdoors often cause the glass cover of the water meter to freeze and crack, making the water meter unable to use normally

The main reason for the freezing damage of the above-mentioned water meter is that after the water meter is frozen at a cold temperature, when the water in the meter changes from a liquid state to a solid state, its volume will increase and a certain expansion force will be generated, so that the weakest point of the water meter— —The glass cover of the water meter is broken, and even damages other components inside the meter, thereby affecting the normal operation of the water meter

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