Energy pipe piece based on circulating medium deformed steel bar

Abstract

The utility model discloses an energy pipe piece based on circulating medium deformed steel bars, which belongs to the technical field of energy equipment and comprises a reinforcement cage consisting of circulating medium deformed steel bars and solid deformed steel bars, the circulating medium deformed steel bars are communicated with one another to form a medium circulating pipeline, concrete is arranged on the reinforcement cage, the reinforcement cage is positioned in the concrete, and the solid deformed steel bars are arranged in the concrete. And the opening end of the medium circulating deformed steel bar is arranged outside the concrete and is connected with the heat exchange system. According to the energy pipe piece, an original traditional ground heat exchanger and an original traditional capillary heat exchanger are abandoned, original partial solid deformed steel bars are replaced with deformed steel bars where media can circulate, the deformed steel bars with high strength are directly used as heat exchanger pipelines, damage caused by other cross work types in the construction process is avoided, and the energy pipe piece is suitable for large-scale production. The novel energy pipe piece is simple in structure and good in heat conduction capacity, so that the novel energy pipe piece can save extra heat exchanger pipes and initial investment cost, and meanwhile the novel energy pipe piece is simple in overall structure and good in heat conduction performance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of energy equipment, specifically relates to a novel energy pipe piece based on flowable medium threaded steel. BACKGROUND

[0002] The statements herein only provide the background of the utility model related to the utility model, and do not necessarily constitute the prior art.

[0003] A large amount of heat is generated in the process of subway operation, and if the heat is not handled in time, it can affect the structural stability of the subway tunnel, thereby causing potential safety hazards. And the heat in the subway tunnel can actually be "captured" and fully utilized as an undeveloped energy source, and if the heat is not handled, it means that a large amount of energy is wasted.

[0004] In recent years, some projects use the scheme of combining the traditional ground source heat pump system's ground heat exchanger or capillary heat exchanger with the tunnel structure to extract the waste heat in the tunnel, and then use it for heating the building on the ground; this method can not only fully utilize the heat generated in the tunnel, but also maintain the structural stability of the tunnel; however, the installation process of the traditional ground heat exchanger is relatively complex, the sleeve diameter and the drilling diameter are large, the turning radius is large, and the heat exchange capacity is weak, so that there are problems such as high cost, high initial investment and large construction difficulty in actual engineering application; although the capillary heat exchanger has small pipe diameter and small construction space, its material has small compression and tensile strength, and the cost is higher. The pipe piece formed by combining the two heat exchangers with the tunnel structure still has many problems in actual application. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an energy pipe piece based on flowable medium threaded steel, abandoning the original traditional ground heat exchanger and capillary heat exchanger, and replacing the original part of solid threaded steel with flowable medium threaded steel, directly using the threaded steel with high strength as a heat exchanger pipeline, which will not be damaged by other cross trades in the construction process, and has good heat conduction capacity, so that the novel energy pipe piece can save additional heat exchanger pipe material and initial investment cost, and the whole pipe piece structure is simple and has excellent heat conduction performance, avoiding the problems of traditional ground heat exchanger and capillary heat exchanger in energy pipe piece construction and operation.

[0006] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] The utility model discloses an energy pipe piece based on flowable medium threaded steel, which comprises a reinforcement cage composed of flowable medium threaded steel and solid threaded steel, the flowable medium threaded steel is connected to each other to form a medium circulation pipeline, concrete is arranged on the reinforcement cage, the reinforcement cage is located inside the concrete, and the open end of the flowable medium threaded steel is arranged outside the concrete and connected with a heat exchange system.

[0008] As a further technical solution, the medium circulation pipeline adopts a series pipeline, a parallel pipeline or a series-parallel pipeline design.

[0009] As a further technical solution, the flowable medium threaded steel comprises hollow threaded steel, sleeve type threaded steel and built-in baffle threaded steel.

[0010] As a further technical solution, the hollow threaded steel is provided with two open ends outside the concrete, which are respectively connected with a water supply pipe and a return water pipe of the external heat exchange system, and the two open ends are provided with water stop rings and coated with waterproof glue.

[0011] As a further technical solution, the sleeve type threaded steel and the built-in baffle threaded steel are provided with one open end outside the concrete, and the open end is provided with a water stop ring and coated with waterproof glue.

[0012] As a further technical solution, the sleeve type threaded steel comprises an outer ring water supply pipe and an inner ring return water pipe connected to each other, and heat insulation material is arranged between the outer ring water supply pipe and the inner ring return water pipe.

[0013] As a further technical solution, the outer ring water supply pipe is connected with a water supply pipe of the external heat exchange system, and the inner ring return water pipe is connected with a return water pipe of the external heat exchange system.

[0014] As a further technical solution, the sleeve type threaded steel is provided with a collection structure, which allows the medium in the outer ring water supply pipe to flow into the inner ring return water pipe.

[0015] As a further technical solution, the built-in baffle threaded steel is provided with a V-shaped baffle, which divides the built-in baffle threaded steel into a water supply layer pipe and a return water layer pipe, and the water supply layer pipe and the return water layer pipe are connected to each other.

[0016] As a further technical solution, the water supply layer pipe is connected with a water supply pipe of the external heat exchange system, and the return water layer pipe is connected with a return water pipe of the external heat exchange system.

[0017] The utility model has the following beneficial effects:

[0018] The energy pipe piece provided by the utility model discards the original traditional buried pipe heat exchanger and capillary tube heat exchanger, and part of the original solid screw steel is replaced by screw steel capable of circulating medium, the screw steel with high strength is directly used as the heat exchanger pipeline, the pipeline is not damaged by other cross trades in the construction process, and has good heat conduction capacity, so that the novel energy pipe piece can save additional heat exchanger pipe material and initial investment cost, the whole structure of the pipe piece is simple, has excellent heat conduction performance, and problems generated in the construction and operation of the energy pipe piece using the traditional buried pipe and capillary tube heat exchanger are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification provide further understanding of the utility model, the illustrative embodiment of the utility model and the description thereof are used for explaining the utility model, and do not constitute improper limitation on the utility model.

[0020] Figure 1 It is a series type pipeline schematic view of the energy pipe piece based on the screw steel capable of circulating medium provided in the utility model embodiment 1;

[0021] Figure 2 It is a parallel type pipeline schematic view of the energy pipe piece based on the screw steel capable of circulating medium provided in the utility model embodiment 1;

[0022] Figure 3 It is a reinforcement cage schematic view provided in the utility model embodiment 1;

[0023] Figure 4 It is a prefabricated energy pipe piece schematic view of the utility model embodiment 2;

[0024] Figure 5 It is a sleeve type screw steel schematic view of the utility model embodiment 2;

[0025] Figure 6 It is a water supply pipe, return water pipe and screw steel connection schematic view of the utility model embodiment 2;

[0026] Figure 7 It is a built-in V-shaped baffle screw steel schematic view of the utility model embodiment 2;

[0027] The schematic view is only used for illustration;

[0028] Wherein, 1, concrete; 2, hollow screw steel; 3, solid screw steel; 4, reinforcement cage; 5, water stop ring; 6, waterproof glue; 7, sleeve type screw steel; 8, outer ring water supply pipeline; 9, inner ring return water pipeline; 10, heat insulation material; 11, water supply pipe; 12, return water pipe; 13, sleeve type water supply and return water pipe. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0030] The utility model provides a kind of energy pipe based on flowable medium threaded steel, including the reinforcement cage 4 being composed of flowable medium threaded steel and solid threaded steel 3, flowable medium threaded steel is mutually linked and forms medium circulation pipeline, concrete 1 is provided on reinforcement cage 4, reinforcement cage 4 is located inside concrete 1, and the opening end of flowable medium threaded steel is arranged outside concrete 1 and is connected with heat exchange system.

[0031] Further, the medium circulation pipeline is designed as a series pipeline, a parallel pipeline or a series-parallel pipeline.

[0032] The series pipeline is mainly suitable for systems that do not require high resistance loss or need to accurately control the water flow rate in the pipeline. The parallel pipeline is mainly suitable for systems that are sensitive to resistance loss and require high performance. In actual engineering, the parallel system is often used to improve the heat exchange efficiency. The series-parallel pipeline is mainly suitable for complex systems that require accurate control and resistance loss reduction. It should be understood that appropriate pipelines can be selected and used according to actual construction conditions.

[0033] Further, the flowable medium threaded steel includes hollow threaded steel 2, sleeve type threaded steel 7 and built-in baffle threaded steel.

[0034] When the energy pipe has a single opening for pipeline access, sleeve type threaded steel 7 and built-in baffle threaded steel are used. When the energy pipe has two openings for pipeline access, hollow threaded steel 2 is used. Both sleeve type threaded steel 7 and hollow threaded steel 2 are suitable for the above-mentioned three types of pipelines. The built-in baffle threaded steel is mainly suitable for series pipelines, as the baffle form is not fixed and it is suitable for various water supply and return scenarios with different ratios.

[0035] It should be understood that different pipeline structures can be selected and used according to actual conditions during actual use, and different pipeline structures can be combined with the above-mentioned different pipelines for use to construct efficient, energy-saving and stable energy pipes.

[0036] Further, the hollow threaded steel 2 has two opening ends outside the concrete 1, which are connected with the water supply pipe 11 and the return water pipe 12 of the external heat exchange system, respectively. Both opening ends are provided with water stop rings 5 and coated with waterproof glue 6.

[0037] Further, the sleeve type threaded steel 7 and the built-in V-shaped baffle threaded steel have one opening end outside the concrete 1, and the opening end is provided with a water stop ring 5 and coated with waterproof glue 6.

[0038] Further, the sleeve pipe threaded steel 7 comprises the outer ring water supply pipeline 8 and the inner ring water return pipeline 9 which are communicated with each other, and the heat insulation material 10 is arranged between the outer ring water supply pipeline 8 and the inner ring water return pipeline 9.

[0039] Further, the outer ring water supply pipeline 8 is connected with the water supply pipe 11 of the external heat exchange system, and the inner ring water return pipeline 9 is connected with the water return pipe 12 of the external heat exchange system.

[0040] Further, the sleeve pipe threaded steel 7 is provided with a collection structure, and the collection structure enables the medium in the outer ring water supply pipeline 11 to flow into the inner ring water return pipeline 9.

[0041] Further, the inner built-in baffle threaded steel is provided with a V-shaped baffle, and the V-shaped baffle divides the inner part of the inner built-in baffle threaded steel into a water supply layer pipeline and a water return layer pipeline, and the water supply layer pipeline and the water return layer pipeline are communicated with each other.

[0042] Further, the water supply layer pipeline is connected with the water supply pipe 11 of the external heat exchange system, and the water return layer pipeline is connected with the water return pipe 12 of the external heat exchange system.

[0043] Embodiment 1

[0044] The traditional buried pipe heat exchanger installation process is relatively complex, the sleeve diameter and the drilling diameter are large, so that there are problems such as high cost and initial investment, and large construction difficulty in actual engineering application; the capillary tube heat exchanger is small in strength, and is easily damaged by other trades in the construction process, so that the heat exchanger cannot operate.

[0045] In view of the above problems, in the embodiment, a series connection type pipeline design is adopted, which comprises a hollow threaded steel 2 and a solid threaded steel 3, and the steel reinforcement cage is composed of the hollow threaded steel and the solid threaded steel. The concrete 1 is arranged on the steel reinforcement cage 4, the steel reinforcement cage 4 is completely located inside the concrete 1, and the whole is arc-shaped. The water stop ring 5 is arranged at the inlet and outlet section of the hollow threaded steel, and the waterproof glue 6 is applied. In the actual arrangement process, attention should be paid to the thermal influence radius of the hollow threaded steel 2 as the heat exchanger, and the hollow threaded steel 2 can be arranged as far as possible to the middle of the steel reinforcement cage 4 while meeting the requirements. In addition, it should be pointed out that the strength of the hollow threaded steel 2 and the solid threaded steel 3 is equal, and the steel reinforcement cage 4 can be constructed by using the threaded steel with the strength grade of HRB400 or HRB500.

[0046] Optionally, before the circulating medium flows through the prefabricated energy pipe piece, metal nanoparticles can be added in the fluid in proportion to form a nanofluid, so as to improve the heat exchange capacity of the fluid, and a suitable surfactant or dispersant can also be added to further optimize the heat transfer performance of the nanofluid.

[0047] Optionally, since water has strong corrosive and is limited by boiling point, the heat carrier water in the circulating pipeline can be replaced by heat carrier oil. The maximum use temperature of oil in a closed system can reach 320°C, with the characteristics of wide temperature range and good thermal stability, not easy to corrode the pipeline, and can be used for a long time. Specific chemicals can be added to the oil, such as oil-soluble viscosity reducer, etc., so as to effectively reduce the viscosity of the oil and make the system run normally.

[0048] Optionally, the hollow threaded steel 2 should also have sufficient thermal conductivity to ensure the heat exchange capacity of the heat exchanger in the prefabricated energy pipe piece, for example, adding graphene or carbon fiber in proportion when the threaded steel is made, which greatly improves the heat transfer capacity and thermal stability of the heat exchanger, and also enhances the strength and rigidity of the threaded steel.

[0049] Specifically, the heat exchanger is a hollow threaded steel 2 that constitutes a steel reinforcement cage 4; the hollow threaded steel 2 in the prefabricated energy pipe piece is directly connected to the outlet and connected to the pipeline outside the energy pipe piece; after the fluid enters the prefabricated energy pipe piece, it flows in the hollow threaded steel 2, and after heat exchange with the concrete 1, it directly flows out of the prefabricated energy pipe piece through the hollow threaded steel 2, thereby completing the heat exchange process. The purpose of using threaded steel as a heat exchanger for heat exchange is achieved, the structure is simple, the arrangement of pipe materials is reduced, and the corresponding heat exchange demand is met. The threaded steel has the characteristics of high strength and is not easy to be damaged during the construction of the pipe piece.

[0050] Preferably, as shown in Figure 2 , a parallel pipeline can also be used. The parallel pipeline makes the resistance loss of each section equal, avoids the flow deviation caused by uneven resistance, and has higher adjustability and applicability in actual application. The parallel pipeline is applied more than the series pipeline in most actual processes. Specifically, the hollow threaded steel heat exchangers are arranged in parallel, so that the resistance loss of each branch is the same. After the fluid flows into the energy pipe piece, it flows through each hollow threaded steel heat exchanger to complete heat exchange, and then flows out of the energy pipe piece through the return water pipe 12.

[0051] Example 2

[0052] As shown in Figure 4 , the present embodiment provides an energy pipe piece with only one opening for the pipeline to enter and exit. The steel reinforcement cage 4 is composed of a solid threaded steel 3 and a sleeve type threaded steel 7. The schematic diagram of the sleeve type threaded steel heat exchanger is as shown in Figure 5As shown, including outer ring water supply pipeline 8, inner ring backwater pipeline 9, between which heat insulation material 10 is arranged, the water supply pipeline is arranged in the outer ring in order to exchange heat with the concrete 1 through the threaded steel. Specifically, the circulating water flows through the outer ring water supply pipeline 8, is collected in the threaded steel in the last section of the sleeve pipe, and then is pressed into the inner ring backwater pipeline 9 to flow out, and the arrow part represents the water flow direction. The prefabricated energy pipe piece only has one opening for the threaded steel pipe to enter and exit, which further improves the strength of the energy pipe piece; and the heat insulation material 10 added between the water supply outer ring and the backwater inner ring effectively reduces the influence between the two, thereby ensuring the heat exchange efficiency.

[0053] The water supply pipe 11 and the backwater pipe 12 also adopt the sleeve pipe type to form a sleeve pipe type water supply and backwater pipe 13, which exchanges heat with the threaded steel heat exchanger as Figure 6 As shown in the prefabrication. Specifically, the outer ring and the inner ring of the sleeve pipe type water supply and backwater pipe 13 are respectively connected with the outer ring and the inner ring of each threaded steel heat exchanger, so that the circulating water enters the energy pipe piece, flows into the outer ring of each heat exchanger from the outer ring of the sleeve pipe type water supply and backwater pipe 13, and then flows back to the inner ring of the sleeve pipe type water supply and backwater pipe 13 from the inner ring of each heat exchanger to flow out of the energy pipe piece, thereby completing the heat exchange process.

[0054] Optionally, the heat insulation material 10 needs to have a low thermal conductivity and a good anti-crushing ability to reduce the heat transfer influence of the high-temperature water in the outer ring on the low-temperature water in the inner ring while ensuring that it is not easy to be crushed during use. Generally, rock wool, glass wool and other materials can be used.

[0055] Embodiment 3

[0056] The difference between this embodiment and embodiment 2 is that the sleeve pipe type threaded steel 7 can also be replaced by other forms of threaded steel, for example, the threaded steel with V-shaped baffles arranged in the pipe (2 / 3 water supply and 1 / 3 backwater) as Figure 7 The forms are flexible and various; the pipeline of the inlet section of the prefabricated energy pipe piece can also be designed to be a single pipe when entering the pipe piece and to be a double pipe after entering the pipe piece; the above designs can all meet the requirement that one opening is provided on the pipe piece for the pipeline to enter and exit.

[0057] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An energy segment based on threaded steel with flowable medium, characterized in that: It includes a steel cage composed of medium-flowable threaded steel bars and solid threaded steel bars. The medium-flowable threaded steel bars are interconnected to form a medium circulation pipeline. Concrete is set on the steel cage, and the steel cage is located inside the concrete. The open end of the medium-flowable threaded steel bars is set outside the concrete and connected to the heat exchange system.

2. The energy segment based on threaded steel with flowable medium according to claim 1, characterized in that: The medium circulation pipeline adopts series pipeline, parallel pipeline, and series-parallel pipeline design.

3. The energy segment based on threaded steel with flowable medium according to claim 1, characterized in that: The threaded steel bars through which medium can flow include hollow threaded steel bars, sleeve-type threaded steel bars, and threaded steel bars with built-in baffles.

4. The energy segment based on threaded steel with flowable medium according to claim 3, characterized in that: The hollow threaded steel bar is provided with two open ends outside the concrete, which are respectively connected to the water supply pipe and the return pipe of the external heat exchange system. Both open ends are provided with water stop rings and coated with waterproof glue.

5. The energy segment based on threaded steel with flowable medium according to claim 3, characterized in that: The sleeve-type threaded steel bar and the built-in baffle threaded steel bar are provided with an open end outside the concrete, which is connected to the water supply pipe and return pipe of the external heat exchange system. The open ends are both provided with water stop rings and coated with waterproof glue.

6. The energy segment based on threaded steel with flowable medium according to claim 5, characterized in that: The sleeve-type threaded steel comprises an outer ring water supply pipe and an inner ring water return pipe which are interconnected, and a heat insulating material is provided between the outer ring water supply pipe and the inner ring water return pipe.

7. The energy segment based on threaded steel with flowable medium according to claim 6, characterized in that: The outer ring water supply pipe is connected to the water supply pipe of the external heat exchange system, and the inner ring water return pipe is connected to the water return pipe of the external heat exchange system.

8. The energy segment based on threaded steel with flowable medium according to claim 7, characterized in that: The sleeve-type threaded steel bar is provided with a collecting structure, and the collecting structure allows the medium in the outer ring water supply pipe to flow into the inner ring water return pipe.

9. The energy segment based on threaded steel with flowable medium according to claim 5, characterized in that: A V-shaped baffle is provided inside the built-in baffle threaded steel, and the V-shaped baffle divides the interior of the built-in baffle threaded steel into a water supply layer pipe and a return water layer pipe, and the water supply layer pipe and the return water layer pipe are interconnected.

10. The energy segment based on threaded steel with flowable medium according to claim 9, characterized in that: The water supply layer pipeline is connected to the water supply pipe of the external heat exchange system, and the return water layer pipeline is connected to the return water pipe of the external heat exchange system.

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