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Ground source heat pump buried pipe construction method based on soil and rock alternate occurrence stratums

A technology of ground source heat pump and construction method, which is applied in the directions of heat pump, geothermal energy, earthwork drilling, etc., can solve problems such as inconvenient drilling operation, and achieve the effects of low hole forming cost, accelerated construction progress and short construction period.

Inactive Publication Date: 2020-06-05
BUILDING & MOUNTING ENG CO LTD NO 12 BUREAU MINIST OF RAILWAYS +2
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Technical problem: The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a ground source heat pump buried pipe construction method based on alternate formations of soil and rocks, which can be constructed in soils and rock formations with different hardness, and solves the current problems. The ground source heat pump system has the problem of inconvenient drilling operation during the construction of vertical buried pipes

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  • Ground source heat pump buried pipe construction method based on soil and rock alternate occurrence stratums
  • Ground source heat pump buried pipe construction method based on soil and rock alternate occurrence stratums

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Embodiment

[0037] The ground-source heat pump buried pipe construction method based on the alternate formation of soil and rock of the present invention includes:

[0038] S1. Site measurement, setting out, positioning and circulation system adjustment; according to the site conditions, determine the orientation and spacing according to the X and Y axes of the general design drawing, and position on site in the form of wedged wooden piles. The vertical hole spacing for positioning should generally be between 4 and 6 meters, or determined according to the calculation of the soil heat balance value. If you encounter immovable obstacles such as municipal facilities, the well position should be adjusted appropriately; the drilling location should be far away from water wells and outdoors. drainage facilities.

[0039] S2. The drilling rig is in place. After the drilling rig is in place, the verticality between the drilling rig and the drill bit should be kept within a certain range, which ca...

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Abstract

The invention discloses a ground source heat pump buried pipe construction process method based on soil and rock alternate occurrence stratums. The ground source heat pump buried pipe construction process method comprises the steps of S1, site measurement, paying off, positioning and circulation system adjustment; S2, preparing drilling machine in place; S3, opening a hole for preliminary testing;S4, performing hole forming process; S5, testing the pressure of a vertical buried pipe; S6, mounting the vertical buried pipe; S7, opening a mud pit; and S8, backfilling. According to the ground source heat pump drilling construction technology, a down-the-hole hammer casing pipe-following drilling mode is adopted, drilling can be carried out in a soft stratum, meanwhile, a hard rock stratum canbe drilled, construction can be carried out in soil and rock stratums of different hardness, a drilling machine does not need to be replaced in the construction process, the construction period is shortened, and the construction cost is reduced. Meanwhile, difficulties encountered by the drilling machine in the soil and rock alternate occurrence stratums are integrated, corresponding solutions are given, and it is guaranteed that follow-up construction operation has a reference value.

Description

technical field [0001] The invention relates to a construction method for a ground-source heat pump buried pipe, in particular to a drilling construction process for a vertical pipe of a ground-source heat pump based on the geology where soil and rock alternately appear. Background technique [0002] The ground source heat pump system is an air conditioning system in which the heat transfer medium exchanges heat with the formation through a closed loop composed of buried pipe heat exchangers buried underground. Thermal energy transfer to high temperature position. In summer, the heat pump unit transfers the heat in the building to the soil stratum through the pipeline; in winter, it extracts heat from the stratum to heat the building. When the ground source heat pump unit is in operation, it does not consume or pollute water, and does not require a site for stacking fuel waste, which has significant environmental benefits; it can also provide domestic hot water while heatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/06F24T10/15E21B7/00E21B7/20E21B21/00E21B33/13E21B4/14
CPCE21B4/14E21B7/00E21B7/20E21B7/208E21B21/00E21B33/13F25B30/06F24T10/15Y02E10/10
Inventor 张浩赵小利曹小杰陈宏刚任贵伟秦永星陈九法郝梦丽杨超凡
Owner BUILDING & MOUNTING ENG CO LTD NO 12 BUREAU MINIST OF RAILWAYS
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