Instrument detection device

Abstract

The invention provides an instrument detection device. The instrument detection device comprises a control system, a sealing water tank, a water pump, a pressure stabilizing module, a water inlet valve, an instrument clamping device, a first cooler, a standard flow meter and a reversing valve, wherein the reversing valve comprises a first water outlet and a second water outlet; the first water outlet is connected with a water return port of the sealing water tank; a second cooler is connected onto the second water outlet; a weighing module is connected onto a water outlet of the second cooler; a control valve is connected onto a water outlet of the weighing module; a water outlet of the control valve is connected with the water return port of the sealing water tank; the sealing water tank is further connected with a turbocharging heating pump. With the adoption of the detection device, the accuracy and the durability of a heat meter can be detected, the accuracy and the durability of a water meter can further be detected, the heat meter or the water meter can be detected with a standard meter method as well as a weighing method, the device has multiple purposes, and the detection cost is relatively low.

Description

technical field [0001] The invention relates to a testing device, in particular to an instrument testing device mainly used for a heat meter or a water meter. Background technique [0002] The detection of heat meters or water meters is to verify the product quality of heat meters or water meters. At present, most instrument manufacturers mainly follow the national standard GB / T778.3-2007 "Measurement of water flow in closed full pipes for drinking cold water meters and hot water "Water Meter" tests the durability and temperature overload performance of hot water meters and cold water meters, according to the national metrology verification regulations JJG225-2010 "Heat Meter Verification Regulations", JJG162-2009 "Cold Water Meter Verification Regulations" and JJG686-2006 Meter Verification Regulations” tests the accuracy of heat meters, hot water meters and cold water meters. In addition, since there is no current applicable test standard for the durability of heat meters in...

AI Technical Summary

Problems solved by technology

[0003] The functions of the traditional heat meter or water meter detection device are relatively single, and usually only one or two of them can be tested, and the devices used for the verification of the heat meter and the verification of the water meter are different, which greatly increases the instrument production enterprises. testing cost

[0004] In addition, the accuracy of the detection device itself will also affect the detection results. Traditional heat meter or water meter test devices usually need to be calibrated with other equipment, which is inconvenient to calibrate

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