Novel PHC energy tubular pile with heat exchange tubes arranged outside pile body
By setting up concrete vertical ribs and concrete ring ribs outside the pile body and placing U-shaped heat exchange pipes in it, the problems of low heat exchange efficiency and high construction difficulty in existing energy piles are solved, and more efficient heat exchange and reduction are achieved Construction complexity, economic and environmental benefits.
Patent Information
- Application Number
- CN202411164457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2024-12-13
AI Technical Summary
The heat exchange pipes of existing energy piles are arranged inside the pile body, resulting in low heat exchange efficiency, high temperature stress on the pile body, and high production and construction difficulties.
Set up concrete vertical ribs and concrete ring ribs outside the pile body, and place U-shaped heat exchange pipes in it, and connect them to the pipe piles through external concrete vertical ribs and concrete ring ribs to improve heat exchange efficiency, reduce the temperature stress of the pile body, and simplify the Production and construction.
It improves heat exchange efficiency, reduces the temperature stress of the pile body, reduces the difficulty of production and construction, promotes the development of energy pile technology, and has economic and environmental benefits.
Smart Images
Figure CN119121908A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pile foundations, and in particular to a novel PHC energy pipe pile in which a heat exchange pipe is arranged outside the pile body. Background Art
[0002] Energy and environmental issues have attracted widespread attention from the world. Geothermal energy is widely used in building heating and cooling due to its environmentally friendly characteristics. At present, ground source heat pump technology is gradually replacing traditional energy. The temperature of geothermal energy at a certain depth below the surface remains unchanged all year round, lower than the outdoor temperature in summer and higher than the outdoor temperature in winter. The ground source heat pump can transfer the heat generated in the building to the soil through the exchange medium in summer, and transfer the heat in the soil to the room through the exchange medium in winter to achieve the purpose of cooling or heating. Therefore, energy piles came into being. At present, for conventional prefabricated energy piles, the heat exchange pipes are set inside the pile body, the heat exchange efficiency is low, the pile body temperature stress caused by heat exchange is large, which makes the prefabricated energy piles lose a lot, and the production and construction of prefabricated energy piles are difficult. Summary of the invention
[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a new type of PHC energy pipe pile in which heat exchange tubes are arranged outside the pile body. Concrete vertical ribs and concrete ring ribs specially used for placing heat exchange tubes are arranged outside the pile body, so as to achieve the goals of improving heat exchange efficiency, reducing temperature stress of the pile body, and reducing the difficulty of production and construction.
[0004] The purpose of the present invention can be achieved by the following technical solutions:
[0005] The present invention is a new type of PHC energy pipe pile in which the heat exchange pipe is arranged outside the pile body, and concrete vertical ribs and concrete ring ribs are specially arranged outside the pile body for placing the heat exchange pipe, so as to achieve the goals of improving heat exchange efficiency, reducing pile body temperature stress, and reducing production and construction difficulty. Prefabricated reinforced concrete pipe piles are widely used in China. If this technology can be promoted and used, it will further promote the development of energy pile technology and have economic and environmental benefits.
[0006] The present invention provides a new type of PHC energy pipe pile in which a heat exchange tube is arranged outside the pile body, comprising: an end-section PHC pipe pile, a non-end-section PHC pipe pile, an external concrete vertical rib, an external concrete annular rib, and a U-shaped heat exchange tube; the non-end-section PHC pipe pile is arranged at both ends of the end-section PHC pipe pile;
[0007] The external concrete longitudinal ribs are arranged on the outer wall of the PHC energy pipe pile, and the external concrete ring ribs are arranged on the bottom of the end section pipe pile;
[0008] The U-shaped heat exchange tube comprises a U-shaped heat exchange tube vertical section and a U-shaped heat exchange tube bottom flat section; the U-shaped heat exchange tube vertical section is pre-placed in the external concrete vertical rib, and the U-shaped heat exchange tube bottom flat section is arranged in the external concrete ring rib.
[0009] Furthermore, the external concrete vertical rib is arranged on the outer wall of 1 / 2 of the PHC pipe pile.
[0010] Furthermore, the external concrete ring ribs are provided with ring rib steel clamps for reinforcement.
[0011] Furthermore, the external concrete vertical ribs are connected to the pipe pile body through U-shaped steel mesh.
[0012] Furthermore, the number of the external concrete vertical ribs matches the number of the U-shaped heat exchange tubes.
[0013] Furthermore, a steel cage is provided outside the pipe pile.
[0014] Furthermore, the steel cage includes longitudinal steel bars and annular steel bars to increase the bearing capacity of the pile under load.
[0015] Furthermore, different pile sections are connected by welding.
[0016] Furthermore, the U-shaped heat exchange tube is connected at the pile joint position by hot melting method.
[0017] Furthermore, the pipe piles serve as carriers of the U-shaped heat exchange tubes. During the pile sinking process, the U-shaped heat exchange tubes are sunk into the underground soil layer, thereby achieving the purpose of using long pile type energy pile foundations in engineering projects.
[0018] Compared with the prior art, the present invention has the following advantages:
[0019] The present invention arranges concrete vertical ribs and concrete ring ribs outside the pile body which are specially used for placing heat exchange pipes, thereby achieving the goals of improving heat exchange efficiency, reducing temperature stress of the pile body, and reducing the difficulty of production and construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a cross-sectional view of the novel PHC energy pipe pile of the present invention;
[0021] Figure 2 This is the cross section of the end section of the new PHC energy pipe pile of the present invention;
[0022] Figure 3 It is a non-end section section of the novel PHC energy pipe pile of the present invention.
[0023] Figure numerals: 1-end section PHC pipe pile; 2-non-end section PHC pipe pile; 3-reinforcement cage; 4-external concrete vertical ribs; 5-external concrete ring ribs; 6-ring rib steel clamps; 7-U-shaped steel mesh; 8-U-shaped heat exchange tube vertical section; 9-U-shaped heat exchange tube bottom flat section. DETAILED DESCRIPTION
[0024] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.
[0025] Example 1
[0026] The present invention provides a new type of PHC energy pipe pile in which a heat exchange tube is arranged outside the pile body, comprising: an end-section PHC pipe pile 1, a non-end-section PHC pipe pile 2, an external concrete vertical rib 4, an external concrete annular rib 5, and a U-shaped heat exchange tube; the non-end-section PHC pipe pile 2 is arranged at both ends of the end-section PHC pipe pile 1;
[0027] The external concrete longitudinal ribs 4 are arranged on the outer wall of the PHC energy pipe pile, and the external concrete annular ribs 5 are arranged on the bottom of the end section pipe pile 1;
[0028] The U-shaped heat exchange tube includes a U-shaped heat exchange tube vertical section 8 and a U-shaped heat exchange tube bottom flat section 9; the U-shaped heat exchange tube vertical section 8 is pre-placed in the external concrete vertical rib 4, and the U-shaped heat exchange tube bottom flat section 9 is arranged in the external concrete ring rib 5.
[0029] In a specific implementation, the external concrete vertical rib 4 is arranged on the outer wall of 1 / 2 of the PHC pile.
[0030] In a specific implementation, the external concrete ring rib 5 is provided with a ring rib steel hoop 6 for reinforcement.
[0031] In a specific implementation, the external concrete vertical rib 4 is connected to the pipe pile body through a U-shaped steel mesh 7.
[0032] In a specific implementation, the number of the external concrete vertical ribs 4 matches the number of the U-shaped heat exchange tubes.
[0033] In a specific implementation, a steel cage 3 is provided outside the pipe pile.
[0034] In a specific embodiment, the steel cage 3 includes longitudinal steel bars and annular steel bars to increase the bearing capacity of the pile under load.
[0035] In a specific embodiment, different pile sections are connected by welding.
[0036] In a specific implementation, the U-shaped heat exchange tube is connected at the pile joint position by hot melting.
[0037] In a specific implementation, the pipe piles serve as carriers of the U-shaped heat exchange tubes. During the pile sinking process, the U-shaped heat exchange tubes are sunk into the underground soil layer, thereby achieving the purpose of using long pile type energy pile foundations in engineering projects.
[0038] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.
[0039] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.
Claims
1. A new type of PHC energy pipe pile with heat exchange pipes arranged outside the pile body, characterized in that: include: End-section PHC pipe pile (1), non-end-section PHC pipe pile (2), external concrete vertical ribs (4), external concrete annular ribs (5), and U-shaped heat exchange tubes; the non-end-section PHC pipe pile (2) is arranged at both ends of the end-section PHC pipe pile (1); The external concrete longitudinal ribs (4) are arranged on the outer wall of the PHC energy pipe pile, and the external concrete annular ribs (5) are arranged on the bottom of the end section pipe pile (1); The U-shaped heat exchange tube comprises a U-shaped heat exchange tube vertical section (8) and a U-shaped heat exchange tube bottom flat section (9); the U-shaped heat exchange tube vertical section (8) is pre-placed in the external concrete vertical rib (4), and the U-shaped heat exchange tube bottom flat section (9) is arranged in the external concrete ring rib (5).
2. According to claim 1, a new type of PHC energy pipe pile with heat exchange tubes arranged outside the pile body is characterized in that: The external concrete vertical rib (4) is arranged on the outer wall of 1 / 2 of the PHC pipe pile.
3. The novel PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 1 is characterized in that: The external concrete ring rib (5) is provided with a ring rib steel hoop (6) for reinforcement.
4. The novel PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 1 is characterized in that: The externally mounted concrete vertical ribs (4) are connected to the pipe pile body via a U-shaped steel mesh (7).
5. The novel PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 1 is characterized in that: The number of the externally mounted concrete vertical ribs (4) matches the number of the U-shaped heat exchange tubes.
6. The novel PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 1 is characterized in that: A steel cage (3) is arranged outside the pipe pile.
7. A new type of PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 6, characterized in that: The steel cage (3) comprises longitudinal steel bars and annular steel bars to increase the bearing capacity of the pile under load.
8. The novel PHC energy pipe pile with heat exchange pipes arranged outside the pile body according to claim 1 is characterized in that: Different pile sections are connected by welding.
9. The novel PHC energy pipe pile with heat exchange tubes arranged outside the pile body according to claim 1 is characterized in that: The U-shaped heat exchange tube is connected at the pile joint position by hot melting method.
10. The novel PHC energy pipe pile with heat exchange pipes arranged outside the pile body according to claim 1, characterized in that: The pipe pile serves as a carrier of the U-shaped heat exchange tube. During the pile sinking process, the U-shaped heat exchange tube is sunk into the underground soil layer, which can achieve the purpose of using the long pile type energy pile foundation in the engineering.