How to apply the key technology of optical fiber temperature measurement to the raw data of the source? The whole process has been carried out for two months, and the temperature change of the source has been collected. A set of data tests is shown below

Optical fiber temperature measurement

Ground source heat pump method: ground source well freezing storage for heating

Compared with the initial temperature, the land cooling around the first well is about 3 degrees, and the average temperature is about 13 degrees. In the optical fiber cable tester, the land cooling around the second well is about 1 degree, and the average temperature is about 14 degrees. The land around the third well is cooled by about 1 degree, with an average temperature of about 13 degrees. (The error of the temperature measurement server is 0.5 or less than 1.6 degrees.)

It can also be seen from the statistics that the temperature field of the source is visualized.

The results of this discussion are as follows:

First, improve the design accuracy, stability and rationalization of ground source heat pump control system.

2. Optimize the software operation and complete the greater rationality of marketing strategy, technology and economic development.

Third, the solid heat transfer model of the soil layer source heat transfer system is improved, so that the design scheme is more effective and economic development.

In the optical fiber distributed temperature measurement technology, the implementation and operation cost of the ground source heat pump system software is reduced, and the data basis is given for the promotion of soil layer energy storage.

At this stage, the technology of optical fiber temperature measurement has been applied to the new project of the original data test of the ground source well. The double-acting U-tube heat conduction is selected for pipe penetration. In the construction process of pipe penetration engineering, the optical fiber temperature sensor replaces the traditional PT100 sensor to carry out accurate soil temperature measurement.