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Thermal-energy meter checking device

A technology for verification devices and heat meters, which is applied in the direction of measuring devices, calorimeters, heat measurement, etc., can solve the problem that the accuracy cannot meet the national standards, the actual working conditions of the heat meters cannot be reflected, and the accuracy of the tested heat meters cannot be satisfied. Accuracy requirements and other issues to achieve the effect of improving accuracy

Inactive Publication Date: 2005-12-21
睿能太宇(沈阳)能源技术有限公司
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Problems solved by technology

Because the density and volume of water are different at different temperatures, the accuracy of the comparison cannot meet the national standard
The second type has the same shortcoming as the first type, which is that the temperature field is replaced by a constant temperature bath, which cannot reflect the actual working conditions of the heat meter, and also cannot meet the accuracy requirements of the heat meter to be tested.
[0004] In addition, the existing heat meter verification device cannot provide the water flow of the flow test pipeline with stable pressure and flow rate close to the actual working conditions, which also affects the accuracy of the heat meter verification

Method used

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Embodiment Construction

[0010] The present invention includes a temperature detection system 14, a flow detection system 23, and a computer processing system 1. The temperature detection system 14 includes two identical temperature setting systems 16, and the water tank 13 of the temperature setting system 16 is connected with the temperature field 8 through a water pump 5; The inner cavity of the field 8 is heat-conducting silicone oil 7, and the temperature sensor 17 and the standard thermometer 18 of the heat energy meter 15 are arranged in the heat-conducting silicone oil 7; the outer jacket 19 of the inner cavity has water 12 rising along the spiral sheet 9; the water tank 21 of the flow detection system 23 passes through The frequency conversion pump 2 is connected with the steady flow tank 3, and the steady flow tank 3 is respectively connected with two flow test pipelines 20 which can be provided with a heat meter 15 through a flow divider 4.

[0011] Steady flow tank 3 is purchased equipment,...

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Abstract

A calibrating device of heat energy meter consists of temperature detecting system including the same two of temperature setting units prepared as connecting water box to warm field , placing silicone oil in warm field cavity ,setting temperature sensor and thermometer of heat energy meter in silicone oil and having water rising along spiral sheet in jacket of internal cavity ; flow rate detecting system prepared as connecting water box to flow stabilization tank and connecting said tank separately to two flow test piping with heat energy meter ; and computer processing system .

Description

Technical field: [0001] The invention relates to the improvement of a heat meter verification device. Background technique: [0002] At present, some enterprises are developing heat meter verification devices and most of them follow the design ideas of cold water meter and hot water meter verification devices. Transform the cold water table into a hot water device (or directly apply the hot water device). This combination is mainly in the following two forms: one heat meter verification device uses the volumetric method plus a constant temperature bath, and the other heat meter verification device uses other standard devices (mass method, called standard meter method) plus a constant temperature bath. [0003] Of the above two methods, the first one has a big mistake in principle. Because water has different densities and volumes at different temperatures, the accuracy of the comparison cannot meet national standards. The second type has the same shortcoming as the first ...

Claims

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Application Information

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IPC IPC(8): G01K19/00
Inventor 孙加胜王军王立新王丹曲乃峰
Owner 睿能太宇(沈阳)能源技术有限公司
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