CN201250401Y

CN201250401Y - Embedded pipe in a pile of a geothermal heat pump

Info

Publication number: CN201250401Y
Application number: CNU200820163960XU
Authority: CN
Inventors: 李若中
Original assignee: NINGBO HAISHEN ENERGY DEVELOPMENT OF ENVIRONMENTAL PROTECTION Co Ltd
Current assignee: NINGBO HAISHEN ENERGY DEVELOPMENT OF ENVIRONMENTAL PROTECTION Co Ltd
Priority date: 2008-09-04
Filing date: 2008-09-04
Publication date: 2009-06-03
Anticipated expiration: 2018-09-04

Abstract

The utility model relates to an embedded pipe in a pile of a geothermal heat pump, which comprises a pile body and a reinforcing cage; an U-shaped supply and return pipe is fixedly connected with the reinforcing cage through cables and binding tapes; the U-shaped supply and return pipe is fastened at the outside diameter above and 0.5m from the bottom of the reinforcing cage; an fabricated cement pulley is added on the outside diameter of the reinforcing cage. The steps of the construction method are as follows: 1. the U-shaped supply and return pipe is manufactured; 2. the reinforcing cage and the U-shaped supply and return pipe are connected through cables and binding tapes; 3. the fabricated cement pulley is arranged on the outside diameter of the reinforcing cage; protective sleeves are arranged at the inlet and the outlet of the U-shaped supply and return pipe; 4. after the U-shaped supply and return pipe is embedded in the pile body, the U-shaped supply and return pipe is integrated with the pile by means of cement placement; after the pipe passes pressure test, the pipe is connected with an elbow and then is connected with a horizontal pipe. The utility model has the advantages that in the geothermal heat pump technology with the pipe embedded in the pile, a PE pipe in an underground heat exchanger of the geothermal heat pump is embedded in the pile, and the utilization value of the bored pile for installing the geothermal heat pump is fully used.

Description

Pipe laying in a kind of earth source heat pump stake

Technical field

The utility model relates to the realm of building construction, mainly is pipe laying in a kind of earth source heat pump stake.

Background technology

Piling is all necessary engineerings of all newly-built high buildings, and stake is divided into two kinds of drilled pile and preformed piles, and preformed pile is little to the value that earth source heat pump is installed, and the utility model is studied the bigger drilled pile of value.

The utility model content

The purpose of this utility model is in order to overcome above-mentioned deficiency, and pipe laying in a kind of earth source heat pump stake is provided.

The utility model solves the technical scheme that its technical problem adopts: pipe laying in this earth source heat pump stake, mainly comprise pile body and reinforcing cage, be fixedly connected with the U type for return pipe by cable tie on the described reinforcing cage, the U type is pricked from the above 0.5m outer radius in reinforcing cage bottom for return pipe, adds concrete prefabricated pulley on the reinforcing cage external diameter.

Supply the import and export of return pipe to be equipped with protective casing in the U type, this protective casing and U type closely are nested and are tightly connected for return pipe.

Described U type is single U structure of natural torsion for return pipe.Described U type is the double-H groove weld structure of natural torsion for return pipe, and the U type is for 1/4 place of return pipe bundle at distance reinforcing cage girth.

Advantage of the present utility model is: Buried Ground Source Heat Pump is that the PE pipe in the subterranean heat exchanger of earth source heat pump is buried the ground source heat pump technology that is placed in the stake in the stake, has made full use of drilled pile to the value of earth source heat pump is installed.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present utility model;

Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1 of the present utility model;

Fig. 3 is the structural representation of embodiment 2 of the present utility model;

Fig. 4 is the B-B sectional structure schematic diagram of Fig. 3 of the present utility model;

Description of reference numerals: the U type is for return pipe 1, reinforcing cage 2, cable tie 3, pulley 4, protective casing 5, pile body 6.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described, but should understand these embodiment is not restriction scope of the present utility model, under the situation of spirit and scope of the present utility model, those skilled in the art can make changes and improvements so that it is fit to different mode of occupation, condition and embodiment to the utility model.

Embodiment 1: as depicted in figs. 1 and 2, pipe laying in this earth source heat pump stake mainly comprises pile body 6 and reinforcing cage 2, is fixedly connected with the U type for return pipe 1 by cable tie 3 on the described reinforcing cage 2, the U type is single U structure of natural torsion for return pipe 1, adopts the PE pipe in the present embodiment.The U type is pricked from the above 0.5m outer radius in reinforcing cage 2 bottoms for return pipe 1, adds concrete prefabricated pulley 4 on reinforcing cage 2 external diameters.Supply the import and export of return pipe 1 to be equipped with protective casing 5 (adopting the UPVC pipe) in the U type, this protective casing 5 closely is nested and is tightly connected for return pipe 1 with the U type.

Embodiment 2: as shown in Figure 3 and Figure 4, be with the difference of embodiment 1: described U type be the double-H groove weld structure of natural torsion for return pipe 1, and the U type is for 1/4 place of return pipe 1 bundle at distance reinforcing cage 2 girths.

In the earth source heat pump work progress, the underground buried tube technology is very crucial, present most of earth source heat pump project all is that pipe laying is carried out in boring around building, and the pipe laying technology is to put the U type into stake for return pipe in pile foundation construction in the stake, recharge with concrete then, the job practices of pipe laying in this earth source heat pump stake, step is as follows:

1, makes the U type for return pipe 1,, require this U type not have the dead angle for return pipe 1 natural torsion in order to ensure U type pipe bearing capacity in the stake;

2, reinforcing cage 2 is connected employing cable tie 3 buttings with the U type for return pipe 1, the U type is pricked from the above 0.5m outer radius in reinforcing cage 2 bottoms for return pipe 1, single U supplies return pipe apart from pricking outside near the reinforcing cage diameter, and is double-U-shaped for 1/4 place of return pipe bundle at distance reinforcing cage girth; Must have many people to lift pipeline when putting U type pipe, not make pipeline produce the dead angle, not allowing has any collision and draws together wiping the PE pipe.Reinforcing cage can produce high temperature behind electric welding overlap joint, must after cooling can butting.Tie up and to guarantee to stablize firmly.

3, in order to guarantee that U type PE pipe does not make it damage with wall friction, add concrete prefabricated pulley at the reinforcing cage external diameter, general per two meters add one, 4 of per pass; Supply the import and export of return pipe 1 to be equipped with protective casing 5 (UPVC protection of pipe) in the U type, and closely be nested for return pipe 1 with the U type, head also should seal, in order to avoid the concrete mortar enters in the pipe;

4, the U type is integral with the pile concrete pouring after imbedding pile body 6 for return pipe 1, pile need to be dug the pile foundation head through maintaining after qualified, and most of the cutting by civil engineering unit finished, and should manually carefully excavate when treating near the U type mouth of pipe, though the mouth of pipe has the UPVC protection, must not damage the PE pipe when digging; Pile is dug the pile foundation head after qualified and is carried out pressure testing through maintaining, is connected with horizontal tube after connecing the PE elbow after qualified by inspection, horizontal tube general along the Beam ditch lays.Answer Beam rationally distributed range of distribution in base area to arrange with journey.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1, pipe laying in a kind of earth source heat pump stake, mainly comprise pile body (6) and reinforcing cage (2), it is characterized in that: described reinforcing cage (2) is gone up by cable tie (3) and is fixedly connected with the U type for return pipe (1), the U type is pricked from the above 0.5m outer radius in reinforcing cage (2) bottom for return pipe (1), adds concrete prefabricated pulley (4) on reinforcing cage (2) external diameter.

2, pipe laying in the earth source heat pump stake according to claim 1 is characterized in that: supply the import and export of return pipe (1) to be equipped with protective casing (5) in the U type, this protective casing (5) closely is nested and is tightly connected for return pipe (1) with the U type.

3, pipe laying in the earth source heat pump stake according to claim 1 and 2 is characterized in that: described U type is single U structure of natural torsion for return pipe (1).

4, pipe laying in the earth source heat pump stake according to claim 1 and 2 is characterized in that: described U type is the double-H groove weld structure of natural torsion for return pipe (1), and the U type is for 1/4 place of return pipe (1) bundle at distance reinforcing cage (2) girth.