Unattended type soil source heat pump rock soil thermal property tester

Abstract

The invention discloses an unattended type soil source heat pump rock soil thermal property tester. A power supply is connected with a pipeline electric heater, a frequency converter, an intelligent electric quantity transmitter and a data collection module to supply power, a contactor, a silicon controlled voltage regulator and the intelligent electric quantity transmitter are sequentially installed on a power supply line of the pipeline electric heater in the current direction, a water inlet of a water supply pipeline and a water outlet of a water return pipeline are respectively connected with the pipeline electric heater, a water flow switch, a third temperature sensor, a second flow sensor and a fourth temperature sensor are sequentially installed on the water supply pipeline in the water flow direction, a first temperature sensor, a frequency conversion circulation water pump, a first flow sensor and a second temperature sensor are sequentially installed on the water return pipeline in the water flow direction, and the frequency conversion circulation water pump is connected with the frequency converter and driven by the frequency converter. The tester achieves automatic measurement of rock soil thermal property parameter, false auto-analysis, automatic alarming and automatic interference removing, reduces manpower and material resources and greatly reduces experiment test cost.

Description

technical field [0001] The invention belongs to the field of ground source (soil source) heat pumps, and in particular relates to an unattended ground source heat pump geothermal property tester. Background technique [0002] The thermophysical properties of shallow surface rock and soil have the greatest impact on the performance of ground source heat pump systems, and are the most basic and important parameters in the design and research process of ground source heat pump systems. Geotechnical parameters (such as soil heat transfer coefficient, borehole thermal resistance, etc.) can be obtained through the geotechnical thermal response test, and these parameters directly affect the investment and operation effect of the ground source heat pump system. Geotechnical thermal response test has become the preparatory basis for the design of the number and length of buried pipe heat exchangers in current ground source heat pumps. The geothermal parameters obtained through the te...

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Problems solved by technology

[0004] In order to overcome the defects that the existing ground source heat pump rock and soil thermal physical property tester cannot be remotely measured and controlled and cannot self-diagnose faults, the present invention discloses an unattended soil source heat pump rock and soil thermal physical property tester. Wireless remote monitoring and control of source heat pump rock and soil thermal physical property tester, unattended on site and not limited by distance

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