INSTALLATION FOR VERIFYING HOT WATER METERS Russian patent published in 2017 - IPC G01F25/00 G01K19/00 

FIELD: measuring equipment.

SUBSTANCE: hot water meter verifying system contains a test section of the pipeline, in which the reference and verified water meters and a flow controller, a computing device, a water heater, temperature sensors and a shut-off valve are installed in series. Water heater is placed on the test section of the pipeline between the reference and verified water metersand designed as a steam heat exchanger provided with a control temperature of hot water passing through the calibratable meter containing hot water temperature sensor disposed in the test section of the pipe immediately behind the varified meter, and connected to the hot water temperature sensor control unit, the output of which is connected to the valve actuator installed in the steam line of the steam heat exchanger. Herewith a cold water temperature sensor is installed directly behind the reference meter on the pipeline test section. The outputs of the reference and verified water meters, as well as cold and hot water temperature sensors are connected to the inputs of the computing device. The input of the pipeline test section is connected through the valve to the cold water pressure line, and its output is connected through the gate valve to the return collector of the heat source network water.

EFFECT: increasing the accuracy of measuring the actual values of the volume of hot water passing through the verified meters in the temperature range corresponding to the operating conditions of the verified meters of the water heating systems, the upper limit of which is 200 degrees.

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