CN106225512A - A kind of precast construction post of combination pile foundation heat exchange pipe laying - Google Patents

Abstract

The invention discloses a prefabricated structural column combined with a pile foundation heat exchange buried pipe, which comprises a heat exchange buried pipe, a casing sleeved outside the heat exchange buried pipe, a concrete structural column poured outside the casing pipe, and a concrete structure column arranged on the concrete structure. The reinforcement frame in the column and the fixed bracket connecting the casing and the reinforcement frame. The reinforcement frame includes longitudinal reinforcement and transverse reinforcement. The longitudinal reinforcement is arranged along the length direction of the concrete structural column, and the horizontal reinforcement is arranged along the width direction of the concrete structural column. Connected by the first connecting piece, the heat exchange buried pipe is provided with an inlet and an outlet on the surface of the concrete structural column. The heat exchange buried pipe is fixedly connected with the reinforcement frame through the fixed bracket, and the structure is simple, the cost is low and the connection is firm.

Description

A prefabricated structural column combined with pile foundation heat exchange buried pipe

technical field

The invention relates to the technical field of geothermal utilization, in particular to a prefabricated structural column combined with pile foundation heat exchange buried pipes.

Background technique

Building energy consumption accounts for a large proportion of the total energy consumption of the society and is increasing year by year. Therefore, the country pays more and more attention to the development and utilization of clean energy and renewable energy. As a high-efficiency, energy-saving and environmentally-friendly air-conditioning technology that can make full use of the shallow underground heat energy to heat and cool, ground-source heat pumps have attracted the attention and favor of countries all over the world since their inception.

At present, the heat pump buried pipe is often combined with the building pile foundation, and the underground U-tube heat exchanger is buried in the concrete pile foundation of the building, so that it can be combined with the building structure to make full use of the building area. The pile foundation forms heat exchange with the surrounding ground, thereby reducing the cost of drilling and laying pipes. Due to the own characteristics of the pile foundation of the building, the U-shaped tube and the pile, and the pile and the earth are in close contact, thereby reducing the contact thermal resistance and strengthening the heat transfer between the circulating working fluid and the earth soil. However, in the prior art, the heat exchange buried pipe is only simply fixed, which easily causes displacement of the heat exchange buried pipe when pouring concrete.

Contents of the invention

The purpose of the present invention is to provide a prefabricated structural column combined with pile foundation heat exchange buried pipes. The heat exchange buried pipes are fixedly connected with the reinforcement frame through fixed brackets. The structure is simple, the cost is low and the connection is firm.

To achieve the above object, the present invention provides the following scheme:

A prefabricated structural column combined with a pile foundation heat exchange buried pipe, including a heat exchange buried pipe, a casing sleeved outside the heat exchange buried pipe, a concrete structural column poured outside the casing, and placed on the The reinforcement skeleton in the concrete structural column and the fixed bracket connecting the casing and the reinforcement skeleton, the reinforcement skeleton includes longitudinal reinforcement and transverse reinforcement, and the longitudinal reinforcement is arranged along the length direction of the concrete structural column, so The transverse reinforcement is arranged along the width direction of the concrete structural column, the longitudinal reinforcement and the horizontal reinforcement are connected by a first connecting piece, and the heat exchange buried pipe is provided with an inlet and an outlet on the surface of the concrete structural column.

Further, the concrete structural column is a square column, and the longitudinal bars are distributed at square intervals along the edge of the concrete structural column.

Further, the concrete structural column is a circular column, and the longitudinal bars are distributed in circular intervals along the edge of the concrete structural column.

Further, the fixing bracket includes a hoop and a second connecting piece, the hoop is sleeved on the outside of the casing and the longitudinal rib adjacent to the casing, and the second connecting piece connects the clamp.

Further, the transverse reinforcement is a zigzag reinforcement or a stirrup.

Further, the transverse ribs are spiral ribs.

Further, the first connecting part is iron wire or fiber rope, the second connecting part is a rigid pipe or rod, and the clamp and the second connecting part are fixed by welding.

Further, the buried heat exchange pipe is a PE pipe.

Further, the heat exchange buried pipe is a single U-shaped, double U-shaped or W-shaped pipe.

Further, the heat exchange buried pipe is arranged inside the reinforcement frame, and the heat exchange buried pipe is provided with an inlet and an outlet on the side of the concrete structural column.

Compared with the prior art, the present invention achieves the following technical effects: a casing is arranged outside the heat exchange buried pipe to protect the heat exchange buried pipe to increase the service life; At the same time, it can prevent the displacement of the casing; setting the transverse reinforcement in a zigzag or S shape can improve the ability of the prefabricated structural column to withstand shear stress; using the clamp as the second connecting piece has a simple structure, convenient use, and low cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is a front sectional view of a square prefabricated structural column combined with a pile foundation heat exchange buried pipe in Embodiment 1 of the present invention;

Fig. 2 is a top view of a square prefabricated structural column combined with pile foundation heat exchange buried pipes in Embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of the structure of a square prefabricated structural column combined with pile foundation heat exchange buried pipes in Embodiment 1 of the present invention;

Fig. 4 is a partial enlarged view of area A in Fig. 1;

Fig. 5 is a front cross-sectional view of a circular prefabricated structural column combined with a pile foundation heat exchange buried pipe according to Embodiment 2 of the present invention;

Fig. 6 is a top view of a circular prefabricated structural column combined with pile foundation heat exchange buried pipes in Embodiment 2 of the present invention;

Fig. 7 is a schematic structural diagram of a circular prefabricated structural column combined with pile foundation heat exchange buried pipes in Embodiment 2 of the present invention;

Explanation of reference signs: 1. Heat exchange buried pipe; 11. Inlet; 12. Outlet; 2. Sleeve; 3. Concrete structural column; 4. Second connector; hoop.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide a prefabricated structural column combined with a pile foundation heat exchange buried pipe.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1,

As shown in Figure 1 and Figure 2, a square prefabricated structural column combined with a pile foundation heat exchange buried pipe, including a heat exchange buried pipe 1, a casing 2 socketed outside the heat exchange buried pipe 1, and poured outside the casing Concrete structure column 3, the reinforcement frame set in the concrete structure column 3 and the fixed bracket connecting the casing 2 and the reinforcement frame, the heat exchange buried pipe is a single U-shaped PE pipe, and the heat exchange buried pipe is arranged on the reinforcement frame Inside, the heat exchange buried pipe 1 is provided with an inlet 11 and an outlet 12 on the side of the concrete structural column 3 .

The cold water flows into the heat exchange buried pipe 1 through the inlet 11, heats the cold water with the outside through the concrete structure column 3 at the bottom of the U-shaped heat exchange buried pipe 1, and then flows out through the outlet 12; the casing set outside the heat exchange buried pipe 1 2 and the rib framework arranged outside the heat exchange buried pipe 1 protect the heat exchange buried pipe 1 from damage.

The concrete structural column 3 is a square column, the reinforcement skeleton includes longitudinal reinforcement 5 and transverse reinforcement 6, the longitudinal reinforcement 5 is arranged along the length direction of the concrete structural column 3, the longitudinal reinforcement 5 is distributed in square intervals along the edge of the concrete structural column 3, and the horizontal reinforcement 6 is arranged along the concrete structure The column 3 is arranged in the width direction, the transverse reinforcement 6 includes both zigzag reinforcement and stirrup reinforcement, the longitudinal reinforcement 5 and the horizontal reinforcement 6 are connected by a first connecting piece, and the first connecting piece is an iron wire or a fiber rope. The zig-zag reinforcement has a strong ability to withstand shear stress, and the stirrup connects the longitudinal reinforcement 5 into one, which improves the strength of the reinforcement skeleton as a whole.

The fixed bracket includes a second connecting piece 4 and a hoop 7. The hoop 7 is sleeved outside the casing 2 and the longitudinal rib 5 adjacent to the casing 2. The second connecting piece 4 is connected to the hoop 7. The second connecting piece It is a rigid pipe or rod, and the clamp and the second connecting piece are fixed by welding. The casing 2 and the longitudinal ribs 5 adjacent to the casing 2 are tightened by the clamp 7 and then connected through the second connecting piece, which has a simple structure and low cost, and can effectively prevent the casing from shifting during concrete pouring.

Embodiment 2,

As shown in Figure 5 and Figure 6, a circular prefabricated structural column combined with pile foundation heat exchange buried pipes in this embodiment has roughly the same structure as that in Embodiment 1, the difference lies in:

The concrete structural column 3 is a circular column, the longitudinal reinforcement 5 is distributed in a circular interval along the edge of the concrete structural column 3, the transverse reinforcement 6 is a spiral reinforcement and spirally wound around the concrete structural column 3 axially, the longitudinal reinforcement 5 and the spiral reinforcement connected through the first connector. The helical reinforcement can better adapt to the concrete structural column 3 with a circular cross section, and provides certain longitudinal and transverse stretching elasticity while protecting the casing 2 .

In this description, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to this The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A prefabricated structural column combined with a pile foundation heat exchange buried pipe, characterized in that it includes a heat exchange buried pipe, a casing sleeved outside the heat exchange buried pipe, and a concrete structure poured outside the casing A column, a reinforcement skeleton arranged in the concrete structure column and a fixed bracket connecting the casing and the reinforcement skeleton, the reinforcement skeleton includes longitudinal reinforcement and transverse reinforcement, and the longitudinal reinforcement is along the concrete structure The length direction of the column is arranged, the horizontal reinforcement is arranged along the width direction of the concrete structure column, the longitudinal reinforcement and the horizontal reinforcement are connected by the first connecting piece, and the heat exchange buried pipe is provided with an inlet and a exit. 2. A prefabricated structural column combined with pile foundation heat exchange buried pipe according to claim 1, characterized in that, the concrete structural column is a square column, and the longitudinal bars are at square intervals along the edge of the concrete structural column distributed. 3. A prefabricated structural column combined with pile foundation heat exchange buried pipe according to claim 1, characterized in that, the concrete structural column is a circular column, and the longitudinal reinforcement is round along the edge of the concrete structural column Shape interval distribution. 4. A prefabricated structural column combined with pile foundation heat exchange buried pipe according to claim 1, characterized in that, the fixing bracket includes a clamp and a second connecting piece, and the clamp is sleeved on the sleeve Outside the pipe and outside the longitudinal reinforcement adjacent to the sleeve, the second connecting piece is connected to the clip. 5 . The prefabricated structural column combined with pile foundation heat exchange buried pipes according to claim 2 , wherein the transverse reinforcement is a zigzag reinforcement or a stirrup. 5 . 6 . The prefabricated structural column combined with pile foundation heat exchange buried pipes according to claim 3 , wherein the transverse reinforcement is a spiral reinforcement. 7 . 7. A prefabricated structural column combined with pile foundation heat exchange buried pipe according to claim 4, characterized in that, the first connecting piece is iron wire or fiber rope, and the second connecting piece is a rigid pipe or rod part, and the clamp and the second connecting part are fixed by welding. 8. A prefabricated structural column combined with pile foundation heat exchange buried pipes according to claim 1, characterized in that the heat exchange buried pipes are PE pipes. 9 . The prefabricated structural column combined with pile foundation heat exchange buried pipes according to claim 1 , wherein the heat exchange buried pipes are single U-shaped, double U-shaped or W-shaped pipes. 10. A prefabricated structural column combined with pile foundation heat exchange buried pipes according to any one of claims 1-9, characterized in that, the heat exchange buried pipes are arranged inside the reinforcement skeleton, and the heat exchange pipes The thermally buried pipe is provided with an inlet and an outlet on the side of the concrete structural column.