Soil temperature recovery device and method

Abstract

The invention discloses a soil temperature recovery device and method, belonging to the technical field of heat supply, including a surface cooler, a heat pump unit and a buried pipe heat exchanger, a plurality of heating terminal outlets are connected in parallel with a water pipe I, and the water pipe I passes through a water pump I, The heat pump unit and water pipe VII are connected to the inlet of the buried pipe heat exchanger, the outlet of the buried pipe heat exchanger is connected to the water pipe VIII, and the water pump II is installed on the water pipe VIII, and the outlet of the water pump II is connected to the water pipe II through the heat pump unit, and the water pipe II is connected to several The inlet of each heating terminal is connected in parallel; the outlet of the surface cooler is connected in parallel with water pipe IV and water pipe V, the other end of water pipe IV is connected with the inlet of water pump I, the other end of water pipe V is connected with the inlet of the buried pipe heat exchanger, and the inlet of the surface cooler is connected in parallel with water pipe III and water pipe VI, the other end of the water pipe III is connected with the water pipe II, the other end of the water pipe VI is connected with the outlet of the water pump II, and each water pipe is provided with a valve. Utilizing the invention can realize the heat supplement to the soil, and then increase the soil temperature. The invention is especially suitable for single-heating large-scale residential buildings.

Description

technical field [0001] The invention belongs to the technical field of heat supply, and in particular relates to a soil temperature recovery device and method. Background technique [0002] In recent years, buried pipe ground source heat pumps, as a form of renewable energy building applications, have been vigorously promoted and applied. However, due to lack of thorough understanding of the technology and excessive commercial hype, many projects that are not suitable for using this technology have also adopted this technology, resulting in many problems during the operation of the system. The most typical problem is that in single-heating large-scale residential buildings, there is a trend that the soil temperature decreases year by year. After many projects have been in operation for several years, the soil temperature decreases year by year. Finally, the soil temperature is so low that normal heating cannot continue, resulting in heating. The cost is getting higher and h...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a soil temperature recovery device and method, aiming to solve the technical problem in the above-mentioned prior art that continuous and stable heating cannot be guaranteed due to the decrease of soil temperature

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