Title:
SOIL LOW-GRADE ENERGY EXTRACTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/034608
Kind Code:
A1
Abstract:
A soil low-grade energy extraction system, Includes: an energy collection device (2), an energy extractor (1) and a heating radiator (4). The energy collection device includes a heating collector (31), a low-level energy side heat-exchange coils (25) and a return liquid pump (24), which are connected in series to constitute a loop in turn. The heating collector (31) includes an energy accumulator (5) and a heat collection well (6). The energy accumulator (5) is comprised of an outer cylinder (9) and an inner cylinder (8) which assembles in the outer cylinder (9). Between the energy accumulator (5) 's outer cylinder (9) and heat collection well (6) fills with a mixture which is made of cement and bolar. The soil low-grade energy extraction system of the present invention solves the problem which troubles people long term, and the cement and bolar makes the energy accumulator tightly contact with the soil together. The soil's heat transfer efficiency can be increased. The energy collection device (2) 's loop fills with the antifreeze fluid, which be still able to work normally when the present system energy source temperature is zero belows.
Inventors:
XU SHENGHENG (CN)
Application Number:
PCT/CN2004/001184
Publication Date:
April 06, 2006
Filing Date:
October 19, 2004
Export Citation:
Assignee:
XU SHENGHENG (CN)
International Classes:
F24J3/08; (IPC1-7): F24J3/08
Domestic Patent References:
| WO2000036343A1 | 2000-06-22 |
Foreign References:
| CN1366162A | 2002-08-28 | |||
| CN1339679A | 2002-03-13 | |||
| JP2002054850A | 2002-02-20 |
Attorney, Agent or Firm:
LUNG TIN INTERNATIONAL INTELLECTUAL PROPERTY AGENT LTD. (Tower B Grand Place, N0. 5, Huizhong Roa, Chaoyang District Beijing 1, CN)
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