Pipe burying device and method for ground source heat pump

Abstract

The invention discloses a pipe burying device and method for a ground source heat pump. The pipe burying device consists of an umbrella claw-shaped spray disc, a heat exchange pipe header, a thrust block, a ground source heat exchange pipe, a derrick, a well pipe hanging head, a lifter, a high-pressure water pipe, a high-pressure water pump, a well pipe and a water pipe retaining ring. The pipe burying method comprises the following steps of: stably supporting the derrick on the ground; installing the well pipe; connecting the ground source heat exchange pipe and communicating with a high-pressure water channel; starting the high-pressure water pump; cutting soil by a high-speed water jet flow from a spray head; mixing the water and the soil to form slurry overflow; and sinking the well pipe under the action of the gravity to complete the pipe burying. In the invention, the hydraulic cutting principle is adopted to realize the one-step completion of welling digging and pipe burying, therefore, the construction schedule and the construction quality are improved, more importantly, the technical problem that the pipe can not be buried because a drift sand layer collapses to block well holes is solved, and the pipe burying process for the ground source heat pump in a soil layer geologic structure is fundamentally improved.

Description

technical field [0001] The invention relates to a construction equipment and method, in particular to a ground source heat pump pipe-burying device and a pipe-burying method. Background technique [0002] As a new type of air conditioning technology, ground source heat pump plays an important role in energy saving and emission reduction. Compared with conventional air conditioning technology, the main difference is that ground source heat pump uses the earth as the energy storage body for heat exchange, which requires buried heat exchangers in the ground. Tubes, underground pipes have become the construction difficulty and investment focus of the ground source heat pump air-conditioning system. For the vertical pipe system, the current construction plan is to drill the well first and then bury the pipe. The depth of the buried pipe is generally 60-120 meters, and the diameter of the well is generally 15 cm, and the number of pipes buried in a single well is 2 or 4, which is ...

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Problems solved by technology

[0002] As a new type of air conditioning technology, ground source heat pump plays an important role in energy saving and emission reduction. Compared with conventional air conditioning technology, the main difference is that ground source heat pump uses the earth as the energy storage body for heat exchange, which requires buried heat exchangers in the ground. Tubes, underground pipes have become the construction difficulty and investment focus of the ground source heat pump air-conditioning system. For the vertical pipe system, the current construction plan is to drill the well first and then bury the pipe. The depth of the buried pipe is generally 60-120 meters, and the diameter of the well is generally 15 cm, and the number of pipes buried in a single well is 2 or 4, which is easy to cause subsidence during the construction of the geological structure of the soil layer, affecting the construction progress and construction quality

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