A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ground source heat pump deep well backfill grouting method
The invention provides a ground source heat pump deep well backfill grouting method. The ground source heat pump deep well backfill grouting method is characterized by comprising the following steps that after or while a heat exchange pipe is arranged in a deep well, a long grouting pipe is inserted into the bottom of the deep well; backfill slurry is conveyed to the bottom of the deep well through a slurry conveying pump by means of the long pipe, grouting is conducted at the bottom to fill a well shaft through counter pressure, and the surface of the slurry gradually rises to form back pressure; when the back pressure reaches a first pressure value, the long pipe starts to be lifted, the purpose that while grouting is conducted, the pipe is lifted is achieved, the back pressure is maintained between a second pressure value and the first pressure value until the slurry overflows from a well mouth, and then the whole deep well is filled with the slurry. By the adoption of the ground source heat pump deep well backfill grouting method, the high density of the backfilling slurry is guaranteed, the heat conducting capacity of the heat exchange deep well is greatly improved, the construction quality of a ground source heat pump system is effectively guaranteed, and energy conservation and emission reduction are really achieved.
Ground source heat pump deep well backfill grouting method
The invention provides a ground source heat pump deep well backfill grouting method. The ground source heat pump deep well backfill grouting method is characterized by comprising the following steps that after or while a heat exchange pipe is arranged in a deep well, a long grouting pipe is inserted into the bottom of the deep well; backfill slurry is conveyed to the bottom of the deep well through a slurry conveying pump by means of the long pipe, grouting is conducted at the bottom to fill a well shaft through counter pressure, and the surface of the slurry gradually rises to form back pressure; when the back pressure reaches a first pressure value, the long pipe starts to be lifted, the purpose that while grouting is conducted, the pipe is lifted is achieved, the back pressure is maintained between a second pressure value and the first pressure value until the slurry overflows from a well mouth, and then the whole deep well is filled with the slurry. By the adoption of the ground source heat pump deep well backfill grouting method, the high density of the backfilling slurry is guaranteed, the heat conducting capacity of the heat exchange deep well is greatly improved, the construction quality of a ground source heat pump system is effectively guaranteed, and energy conservation and emission reduction are really achieved.
Ground source heat pump deep well backfill grouting method
ZHANG SHENGJUN (author) / WANG JUN (author) / FANG QUNYING (author) / WANG ZHIYAO (author) / CAO GUOWEI (author) / CHEN WEINING (author) / XU YI (author) / SHI XIAOHU (author) / ZHOU LEI (author)
2015-05-20
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
Ground source heat pump buried pipe isolation backfill grouting material
| European Patent Office | 2015
Ground source heat pump granular backfill material, preparation method and backfill method
| European Patent Office | 2024
Coupling type ground source heat pump mixed backfill technology and backfill material
| European Patent Office | 2015
Backfill material and backfill method for vertical spiral buried pipe ground source heat pump
| European Patent Office | 2023
| European Patent Office | 2022