Fabricated wall embedded radiant heating system

Abstract

The invention provides a fabricated wall embedded radiant heating system, relates to the technical field of heating equipment, and aims to solve the problem that a heating system at the present stage occupies too large space or needs secondary construction to a certain extent. The invention provides an assembly type wall embedded radiant heating system. The assembly type wall embedded radiant heating system comprises a wall mechanism, a heating pipe and a butt joint assembly. The wall body mechanism comprises a wall base body and a positioning inner core, the wall base body is formed through pouring and forms an inner cavity, the positioning inner core is located in the inner cavity of the wall base body, a positioning interval is formed in the positioning inner core, and the heating pipe is laid in the positioning interval; the water inlet end of the heating pipe is located at the bottom of one side of the wall mechanism, and the water outlet end of the heating pipe is located at the bottom of the other side of the wall mechanism. The butt joint assembly is used for connecting the water inlet end and the water outlet end of the heating pipe.

Description

Prefabricated wall-embedded radiant heating system Technical Field

[0001] This invention relates to the field of heating equipment technology, and in particular to a prefabricated wall-embedded radiant heating system. Background Technology

[0002] Winter heating is a basic requirement for modern buildings. Traditional heating terminals, such as radiators, need to be installed indoors, occupying valuable living space and affecting the interior layout and aesthetics. While underfloor heating, also known as water-based underfloor heating, is more concealed, it requires complex on-site pipe laying and pouring of the filling layer after the building structure is completed. This process is cumbersome, time-consuming, and increases the floor load and structural thickness.

[0003] With the advancement of industrialized construction, prefabricated walls have been widely used due to their advantages such as fast construction speed and easy quality control. However, how to efficiently and reliably integrate heating systems into prefabricated walls to achieve structural and functional integration and reduce on-site work and space occupation remains a problem that needs to be optimized.

[0004] Therefore, there is an urgent need to provide a prefabricated wall-embedded radiant heating system to solve the problems existing in the current technology to a certain extent. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated wall-embedded radiant heating system, which can, to some extent, solve the problems of excessive space occupation or the need for secondary construction in current heating systems.

[0006] This invention provides a prefabricated wall-embedded radiant heating system, comprising a wall structure, heating pipes, and a connecting assembly. The wall structure includes a wall base and a positioning core. The wall base is cast and formed to create an inner cavity. The positioning core is located within the inner cavity of the wall base and has positioning intervals. The heating pipes are laid within these positioning intervals. The inlet end of the heating pipe is located at the bottom of one side of the wall structure, and the outlet end is located at the bottom of the other side of the wall structure. The connecting assembly is used to connect the inlet end and the outlet end of the heating pipe.

[0007] The wall base includes an outer pouring layer and an inner pouring layer, both of which are formed by pouring fine aggregate concrete, and the outer pouring layer and the inner pouring layer cover the positioning core.

[0008] Specifically, the wall base includes a first base, a second base, a third base, and a fourth base; the first base has a first mating protrusion extending vertically on one end face corresponding to the water inlet end of the heating pipe, and a first mating recess on the other end face; in two adjacent first bases, the first mating protrusion of one first base is tongue-and-groove connected to the first mating recess of the other first base; the second base has a second mating recess extending vertically on one side face corresponding to the water outlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end; the third base has a third mating recess extending vertically on each of the three sides corresponding to the water inlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end; the fourth base has a second mating protrusion extending vertically on one side face corresponding to the water outlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end.

[0009] The connecting components include straight connectors, elbows, tees, or crosses. The straight connector is used to connect two adjacent heating pipes arranged in the wall structure. The elbow is used to connect two adjacent and perpendicularly arranged heating pipes in the wall structure. The tee is used to connect three adjacent heating pipes in the wall structure. The cross is used to connect four adjacent heating pipes in the wall structure arranged in a cross shape.

[0010] Specifically, the positioning core includes a plate and multiple positioning protrusions, which are arranged in an array on the plate to form the positioning interval; the heating pipe is arranged in a serpentine pattern on the plate.

[0011] Furthermore, the wall base has an avoidance notch at the bottom position on the side corresponding to the water inlet end of the heating pipe for connecting the heating pipe.

[0012] Furthermore, the wall structure also includes a thermal insulation layer located between the outer cast layer and the positioning inner core.

[0013] The wall base has an extension at its bottom, which is used for the connection between the wall structure and the floor slab, and the extension is formed by the outer pouring layer and the inner pouring layer.

[0014] Specifically, the prefabricated wall-embedded radiant heating system provided in this application also includes an exhaust assembly, one end of which is connected to the heating pipe and the other end extends out of the wall base to exhaust the gas in the heating pipe.

[0015] Furthermore, the exhaust assembly includes a connecting pipe and an exhaust valve. The exhaust valve is disposed outside the wall base and is connected to one end of the connecting pipe, while the other end of the connecting pipe is connected to the heating pipe.

[0016] Compared with existing technologies, the prefabricated wall-embedded radiant heating system provided by this invention has the following advantages:

[0017] The prefabricated wall-embedded radiant heating system provided by this invention includes a wall structure, heating pipes, and a docking assembly. The wall structure includes a wall base and a positioning core. The wall base is cast and formed to create an inner cavity. The positioning core is located in the inner cavity of the wall base and has positioning intervals. The heating pipes are laid within the positioning intervals. The water inlet of the heating pipe is located at the bottom of one side of the wall structure, and the water outlet of the heating pipe is located at the bottom of the other side of the wall structure. The docking assembly is used to connect the water inlet and the water outlet of the heating pipe.

[0018] Analysis shows that the wall structure provided in this application is a carrier of the overall heating structure. It can serve as a building envelope while integrating and accommodating heating pipes. It includes a wall base and a positioning core. The wall base provides the basic performance of the wall, such as overall structural strength, building shape, and thermal insulation and sound insulation. It is precast and cast into a cavity to accommodate the positioning core. The positioning core is fixed in the cavity. Since the positioning core has positioning intervals for positioning the heating pipes, the laying path and fixed position of the heating pipes can be precisely defined by the positioning intervals.

[0019] Heating pipes serve as channels for the heat transfer medium, laid within designated intervals, and dissipate heat into the room through their walls. The inlet and outlet ends of the heating pipes are located on opposite sides of the bottom of the wall structure, facilitating centralized connections at the base of the wall. Connecting assemblies connect the ends of heating pipes in adjacent wall structures, forming a complete circulating pipe network.

[0020] In actual construction, both the wall structure and heating pipes are assembled and prefabricated in the factory. During the factory prefabrication stage, firstly, the dimensions, thickness, and pipe circuits of the walls are designed according to the architectural drawings. Then, prefabricated positioning cores are placed in molds; preferably, the positioning cores in this application are mushroom-shaped panels.

[0021] Next, the flexible heating pipes are manually or mechanically inserted into the positioning intervals of the positioning core according to the pre-designed laying route. Subsequently, fine aggregate concrete and other materials are poured into the mold to completely enclose and solidify the positioning core and heating pipes, forming a prefabricated wall panel that integrates concealed piping. The two ends of the heating pipes are led out from pre-set openings at the bottom of the wall, thus completing the factory manufacturing stage.

[0022] During the on-site construction phase, prefabricated wall panels are first transported to the construction site and then hoisted and positioned like ordinary prefabricated wall panels. When multiple wall panels are joined together, operators use a connecting assembly to connect the ends of the heating pipes extending from adjacent walls within the working space at the bottom of the wall. Ultimately, the heating pipes of all the walls are connected into a closed system via the connecting assembly, which is then connected to the building's main heating pipeline.

[0023] This application integrates the heating system with the building walls, completely eliminating exposed radiators. This not only saves valuable interior space but also enhances aesthetics and layout flexibility. Secondly, it greatly simplifies on-site construction. Traditional underfloor heating requires multiple wet processes, such as pipe coiling and pouring of the filling layer, after the floor slab is completed, resulting in complex procedures and a long timeframe. This solution moves the most complex pipe coiling and fixing work to the factory, with on-site work limited to dry assembly and connection. This significantly improves construction efficiency, drastically shortens the construction period, and makes quality control easier. Finally, the systematic prefabrication and connection design provides a standardized integrated heating solution for building industrialization. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of the arrangement of heating pipes in the prefabricated wall-embedded radiant heating system provided in an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of the layout of the connection between two wall mechanisms in the prefabricated wall-embedded radiant heating system provided in an embodiment of the present invention.

[0027] Figure 3 is a schematic diagram of the wall structure connection of the prefabricated wall-embedded radiant heating system provided in an embodiment of the present invention;

[0028] Figure 4 is a layered schematic diagram of the first type of wall structure in the prefabricated wall-embedded radiant heating system provided in the embodiment of the present invention.

[0029] Figure 5 is a layered schematic diagram of the second type of wall structure in the prefabricated wall-embedded radiant heating system provided in the embodiment of the present invention.

[0030] In the diagram: 1-Wall base; 101-Outer pouring layer; 102-Inner pouring layer; 103-Avoidance gap; 104-Extension; 105-First base; 1051-First mating protrusion; 1052-First mating recess; 106-Second base; 1061-Second mating recess; 107-Third base; 1071-Third mating recess; 2-Positioning core; 201-Positioning protrusion; 3-Insulation layer; 4-Heating pipe; 401-Inlet; 402-Outlet; 5-Matching assembly. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0036] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0037] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0038] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0039] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0040] As shown in Figures 1-5, the present invention provides a prefabricated wall-embedded radiant heating system, including a wall structure, a heating pipe 4, and a docking assembly 5. The wall structure includes a wall base 1 and a positioning core 2. The wall base 1 is cast and formed to form an inner cavity. The positioning core 2 is located in the inner cavity of the wall base 1 and has positioning intervals. The heating pipe 4 is laid in the positioning intervals. The water inlet end 401 of the heating pipe 4 is located at the bottom of one side of the wall structure, and the water outlet end 402 of the heating pipe 4 is located at the bottom of the other side of the wall structure. The docking assembly 5 is used to connect the water inlet end 401 and the water outlet end 402 of the heating pipe 4.

[0041] Compared with existing technologies, the prefabricated wall-embedded radiant heating system provided by this invention has the following advantages:

[0042] The prefabricated wall-embedded radiant heating system provided by this invention uses a wall structure as the carrier of the overall heating structure. It can serve as a building envelope while integrating and accommodating four heating pipes. The system includes a wall base 1 and a positioning core 2. The wall base 1 provides basic wall performance such as overall structural strength, building shape, and thermal and sound insulation. It is prefabricated and cast into a cavity to accommodate the positioning core. The positioning core 2 is fixed in the cavity. Since the positioning core 2 has positioning intervals for positioning the heating pipes 4, the laying path and fixed position of the heating pipes 4 can be precisely defined by the positioning intervals.

[0043] The heating pipe 4 serves as a flow channel for the heat medium, laid within the designated intervals, and dissipates heat into the room through its wall. The inlet end 401 and outlet end 402 of the heating pipe 4 are located on both sides of the bottom of the wall structure, facilitating centralized connection at the bottom of the wall base 1. The connecting assembly 5 connects the ends of the heating pipe 4 in adjacent wall structures to form a complete circulation pipeline network.

[0044] In actual construction, both the wall structure and the heating pipes 4 are assembled and prefabricated in the factory. During the factory prefabrication stage, firstly, the dimensions, thickness, and pipe circuits of the wall are designed according to the architectural drawings. Then, the prefabricated positioning core 2 is placed in the mold; preferably, the positioning core 2 in this application is a mushroom-shaped board.

[0045] Next, the flexible heating pipe 4 is inserted manually or mechanically into the positioning intervals of the positioning core 2 according to the pre-designed laying route. Subsequently, fine stone concrete and other materials are poured into the mold to completely enclose and solidify the positioning core 2 and the heating pipe 4, forming a prefabricated wall panel that integrates concealed piping. The two ends of the heating pipe 4 will extend from the pre-set openings at the bottom of the wall, thus completing the factory manufacturing stage.

[0046] During the on-site construction phase, prefabricated wall panels are first transported to the construction site and then hoisted and positioned like ordinary prefabricated wall panels. When multiple wall panels are joined together, operators use the connecting assembly 5 to connect the ends of the heating pipes 4 extending from adjacent walls within the working space at the bottom of the wall, typically using a heat fusion method. Ultimately, all the heating pipes 4 of all the walls are connected into a closed system via the connecting assembly 5, which is then connected to the building's main heating pipeline.

[0047] This application integrates the heating system with the building walls, completely eliminating exposed radiators. This not only saves valuable interior space but also enhances aesthetics and layout flexibility. Secondly, it greatly simplifies on-site construction. Traditional underfloor heating requires multiple wet processes, such as pipe coiling and pouring of the filling layer, after the floor slab is completed, resulting in complex procedures and a long timeframe. This solution moves the most complex pipe coiling and fixing work to the factory, with on-site work limited to dry assembly and connection. This significantly improves construction efficiency, drastically shortens the construction period, and makes quality control easier. Finally, the systematic prefabrication and connection design provides a standardized integrated heating solution for building industrialization.

[0048] Optionally, as shown in Figures 1-5, the wall base 1 includes an outer pouring layer 101 and an inner pouring layer 102. Both the outer pouring layer 101 and the inner pouring layer 102 are formed by pouring fine stone concrete, and the outer pouring layer 101 and the inner pouring layer 102 cover the positioning core 2.

[0049] The external cast-in-place layer 101 in this application mainly bears external loads, resists environmental erosion, and serves as the base layer for the exterior wall finish. The internal cast-in-place layer 102, together with the external wall layer, forms a robust shell, protecting the internal positioning core 2 and heating pipe 4, and serves as the base layer for the interior walls.

[0050] Because fine aggregate concrete has good fluidity, high density, and high strength, it can ensure the overall strength and durability of the precast wall. Therefore, both the outer pouring layer 101 and the inner pouring layer 102 in this application are formed by pouring fine aggregate concrete.

[0051] In actual construction, a layer of fine aggregate concrete is first poured into the mold at the factory to form the outer layer 101. Then, the positioning inner core 2 and the pre-coiled heating pipes 4 are laid on this layer. Next, fine aggregate concrete is poured again above the positioning inner core 2 and the heating pipes 4 to form the inner layer 102, thus completely encapsulating and protecting the heating system inside the wall. The two layers of concrete fuse together at the junction around the wall, forming a robust composite structure. Of course, in some embodiments, steel reinforcement can be further placed within the pouring layers to improve the overall structural strength of the wall.

[0052] Understandably, the double-layered concrete structure gives the walls excellent compressive and impact resistance, meeting the safety requirements for building load-bearing or enclosure. Simultaneously, the fine aggregate concrete provides robust protection for the internal plastic pipes and positioning core 2, shielding them from damage caused by renovations, moisture, and corrosion, thus extending the lifespan of the entire heating system. Furthermore, the concrete layer has good heat storage capacity, allowing for the slow release of heat during heating breaks, improving the stability of indoor thermal comfort.

[0053] Optionally, as shown in Figure 3, the wall base 1 in this application includes a first base 105, a second base 106, a third base 107, and a fourth base; the first base 105 has a first mating protrusion 1051 extending vertically formed on one end face corresponding to the water inlet end 401 of the heating pipe 4, and a first mating recess 1052 formed on the other end face; in two adjacent first bases 105, the first mating protrusion 1051 of one first base 105 is tongue-and-groove connected to the first mating recess 1052 of the other first base 105; the second base 106 corresponds to the water outlet end 402 of the heating pipe 4... A second mating recess 1061 extending vertically is formed on the side of the first substrate 107, and a first mating protrusion 1051 is formed on the end face corresponding to the water inlet end 401. A third mating recess 1071 extending vertically is formed on each of the three faces of the third substrate 107 corresponding to the water inlet end 401 of the heating pipe 4, and a first mating protrusion 1051 is formed on the end face corresponding to the water inlet end 401. A second mating protrusion extending vertically is formed on the side of the fourth substrate corresponding to the water outlet end 402 of the heating pipe 4, and a first mating protrusion 1051 is formed on the end face corresponding to the water inlet end 401.

[0054] The first substrate 105, second substrate 106, third substrate 107, and fourth substrate in this application can adapt to the splicing requirements of building walls at different locations, such as straight wall sections, corners, T-junctions, and cross-junctions. Specifically, the first substrate 105 is used for splicing straight wall sections, that is, straight wall sections are spliced ​​together at one time through multiple first substrates 105. Taking the perspective of Figure 2 as an example, one end of the first substrate 105 is the first mating protrusion 1051, and the other end is the first mating recess 1052. Therefore, when splicing straight wall sections, the straight wall sections can be formed directly through the tongue and groove connection of the first mating protrusion 1051 and the first mating recess 1052.

[0055] When encountering a corner, the first base 105 and the second base 106 or the fourth base (not shown in the figure) can be spliced ​​together. Since the side wall of the second base 106 forms a second mating recess 1061 and the fourth base forms a second mating protrusion, when encountering a corner, the second base 106 or the fourth base can be spliced ​​with the first base 105 according to the specific wall design requirements to form the corner.

[0056] Accordingly, T-shaped junctions and cross junctions can be formed by splicing through the third substrate 107 and the fourth substrate.

[0057] The four substrates provided in this application enable a high degree of standardization and modularization of the overall system, simplifying and maximizing prefabrication production and significantly improving the accuracy and speed of on-site installation. Furthermore, the tongue-and-groove joints, with their built-in guiding and positioning functions, ensure a seamless fit between wall panels, reducing on-site measurement and adjustment time, lowering the operational difficulty for skilled workers, and enhancing the overall structural integrity.

[0058] Furthermore, tongue and groove joints can increase the contact area between wall panels, improve load-bearing performance, and enhance the overall stability and shear resistance of the wall.

[0059] Optionally, the docking component 5 in this application includes a straight pipe, an elbow, a tee, or a cross. The straight pipe is used to connect the heating pipes 4 of two adjacent wall structures. The elbow is used to connect the heating pipes 4 of two adjacent and perpendicularly arranged wall structures. The tee is used to connect the heating pipes 4 of three adjacent wall structures. The cross is used to connect the heating pipes 4 of four adjacent wall structures arranged in a cross shape.

[0060] The connecting assembly 5 provided in this application includes four types of connectors, which can connect four disconnected heating pipe segments into a continuous water circulation system on-site. Straight connectors are used to connect pipe ends of two walls located on the same straight line; elbows are used to connect pipe ends of two mutually perpendicular walls, such as corner walls; and tees and crosses are used to connect pipes in three or four walls that intersect in a T-shape or cross shape, realizing pipe branching or merging.

[0061] In this application, the heating pipe 4 protrudes beyond the wall base 1. Therefore, after the wall module is hoisted into place and initially connected via tongue and groove joints, construction workers select the corresponding standard pipe fittings at the pipe ends at the bottom of the wall, based on the wall layout diagram. For example, when connecting two straight wall sections, a straight connector is used, employing a hot melt machine or a special crimping tool to quickly connect the pipe ends to the straight connector. At wall corners, a 90° elbow is used for connection. All connections use standardized interfaces and uniform operating procedures. Furthermore, through the combination of these basic pipe fittings, most wall layouts in buildings can be accommodated, giving this prefabricated heating system strong adaptability and scalability.

[0062] Optionally, as shown in Figure 1 and Figure 2, the positioning core 2 in this application includes a plate and a plurality of positioning protrusions 201. The plurality of positioning protrusions 201 are arranged in an array on the plate to form positioning intervals; the heating pipe 4 is arranged in a serpentine pattern on the plate.

[0063] In this application, the plate of the positioning core 2 can serve as a sturdy base plate, supporting the positioning protrusions 201 and providing a flat laying surface for the heating pipe 4. The positioning protrusions 201 precisely divide and fix the direction and spacing of the pipes, and the positioning intervals they form are grooves, ensuring that the pipes will not shift, float, or have uneven spacing when concrete is poured.

[0064] Of course, the array of multiple positioning protrusions 201 in this application covers most of the area of ​​the plate, thereby enabling the laying of the heating pipe 4 to be arbitrarily adjusted in terms of spacing and direction according to different needs.

[0065] Preferably, the heating pipe 4 in this application adopts a serpentine arrangement. The serpentine arrangement is the most commonly used loop form in radiant heating, which can make the heating pipe 4 evenly cover the entire heat dissipation surface of the wall and avoid local overheating or undercooling areas.

[0066] In actual operation, the positioning inner core 2 in this application adopts a mushroom plate.

[0067] Optionally, as shown in Figure 1 and Figure 2, the bottom position of the wall base 1 in this application corresponding to the water inlet end 401 of the heating pipe 4 is formed with an avoidance notch 103 for connecting the heating pipe 4.

[0068] This application provides the necessary operating space and visual access for connecting the end of the heating pipe 4 and the mating assembly 5 on site through the clearance notch 103 formed at the bottom of the wall base 1. Without this notch, the pipe end may be completely covered by concrete or only slightly exposed, which would greatly hinder the mating and installation of pipe fittings, such as the operation of thermoforming tools.

[0069] Therefore, during the prefabrication of the wall base 1 in the factory, protrusions were set at the corresponding positions in the mold, resulting in a partially recessed notch at the bottom of the final wall at the water inlet end 401 of the pipe. Once the wall is hoisted to the site, construction workers can easily reach into this notch to clearly see and manipulate the exposed pipe end for cleaning, cutting, and connection to the fittings. After connection, this notch can be filled and sealed with insulation material or covered with architectural decorative components such as baseboards.

[0070] Therefore, the clearance 103 formed by the wall base 1 can greatly improve the convenience and reliability of installation, provide sufficient operating space, and ensure that the connection work can be completed smoothly and accurately, reducing the connection quality risks caused by inconvenient operation, thereby improving construction efficiency to a certain extent.

[0071] Furthermore, workers do not need to painstakingly search for or chisel open pipe openings on-site, saving on-site installation time and protecting pipe joints.

[0072] Preferably, as shown in Figure 1 and Figure 2, the protruding length of the water inlet end 401 of the heating pipe 4 in this application does not exceed the end face of the wall base 1, that is, the exposed part of the heating pipe 4 is located within the range of the avoidance gap 103, thereby avoiding the problem of damage during transportation and assembly.

[0073] It should be noted that the clearance 103 also facilitates water pressure testing before the wall structure is connected to the floor slab, preventing leaks in the heating pipe 4 or at the connection point within the wall structure. Therefore, by following the structure and construction method provided in this application, even if pipe leaks exist, the wall structure can be replaced in time before the final connection construction, ensuring that the resulting building will not have leaks.

[0074] Optionally, as shown in Figure 4, the wall structure in this application further includes a thermal insulation layer 3, which is located between the outer cast layer 101 and the positioning inner core 2.

[0075] By setting an insulation layer 3 between the outer pouring layer 101 and the positioning inner core 2, heat can be blocked to a certain extent. That is, the heat generated by the heating pipe 4 is prevented from being transferred to the outside of the outer wall through the outer pouring layer 101, i.e., the outside, while retaining or guiding as much heat as possible to the indoor side, thereby reducing the problem of heat loss to a certain extent and improving the energy efficiency of the system.

[0076] Understandably, since a building contains both exterior and interior walls (interior walls being those that divide interior spaces), heat loss is not a concern as each surface of the interior wall is located within the building. Therefore, during factory manufacturing of the wall structure forming the exterior walls, after the outer pouring layer 101 is cast and cured, a thermal insulation layer 3, such as extruded polystyrene board, graphite polystyrene board, or rigid polyurethane foam board, is laid on its inner surface. The thickness of the insulation board can be calculated and determined according to building energy efficiency requirements.

[0077] After the insulation layer is laid, the positioning inner core 2 with the heating pipe 4 already coiled is installed on it. The two can be positioned by bonding or by pouring another thin layer of cement mortar. Finally, the inner pouring layer 102 is poured to form the wall structure of the exterior wall.

[0078] The wall with an internal heat insulation layer 3 can effectively block heat loss to the outside and direct most of the heat to the room, thereby significantly reducing heating energy consumption and operating costs. In addition, it can also improve indoor thermal comfort, reduce cold radiation on the inner surface of the exterior wall, avoid the chilly feeling when people are near the exterior wall, and make the indoor temperature distribution more uniform.

[0079] Optionally, as shown in Figure 1 and Figure 2, the bottom of the wall base 1 in this application is formed with an extension 104, which is used for the connection between the wall structure and the floor slab, and the extension 104 is formed by an outer pouring layer 101 and an inner pouring layer 102.

[0080] This application enhances the structural connection and installation positioning between the precast wall and the main building structure, i.e., the floor slab, through the extension 104 further formed at the bottom of the wall base 1. It provides a larger contact surface and more connection possibilities, such as the location of reserved reinforcing bars, embedded parts, or grouting sleeves, ensuring the wall stands firmly.

[0081] The extension 104 is integrally formed during factory prefabrication and is a vertical extension of the wall base 1. It is usually slightly thinner than the standard wall thickness or designed with grooves. During on-site construction, after the wall is hoisted into place, the extension 104 rests precisely on the floor slab. Construction workers can achieve a rigid and reliable connection between the wall and the floor slab by welding or binding the extension 104 to the pre-installed reinforcing bars in the floor slab, or by injecting high-strength mortar into the cavity between the extension 104 and the floor slab. This grouting or injection connection method is very common in prefabricated buildings and will not be elaborated further here.

[0082] However, the extension section 104 provided in this application can further accommodate one or more heating pipes 4. It is understood that in most current domestic heating systems, multiple spaces may use different pipes for heating to ensure the pressure, smoothness, and temperature of the system operation. That is, when one pipe supplies multiple spaces, due to heat loss, the temperature in the space at the end will differ from that in the space at the beginning. Therefore, the extension section 104 can provide space for the laying of further heating pipes 4. By further installing one or more heating pipes 4 in the extension section 104, they can be connected to the manifold to realize a heating method with multiple heating pipes 4 corresponding to multiple spaces, so as to ensure that the heating effect and temperature in each space are as consistent as possible.

[0083] Optionally, the prefabricated wall-embedded radiant heating system provided in this application also includes an exhaust component, one end of which is connected to the heating pipe 4 and the other end extends out of the wall base 1 to exhaust the gas in the heating pipe 4.

[0084] In hot water heating systems, if air accumulates in the pipes, it will form an airlock, which will hinder the normal circulation of hot water, causing some pipes or radiators to not heat up, and seriously affecting the heating effect.

[0085] Therefore, this application, through a further designed venting assembly, facilitates the discharge of gas from the pipeline. This venting assembly is integrated into the prefabricated wall. During factory prefabrication, at the highest point of the pre-set heating pipe 4 circuit (located at the top of the wall structure in the structure provided by this application), a connecting pipe extends from the heating pipe 4. This connecting pipe extends horizontally or downwards, penetrating the wall base 1 and exposing an interface on the interior wall. After on-site installation and system water filling, operators install automatic or manual venting valves through this interface. When air is present in the system, the venting valve can be opened to release it, thereby ensuring normal system operation to a certain extent, effectively removing air remaining after initial system operation and maintenance, ensuring unobstructed hot water circulation, and guaranteeing uniform and stable heating.

[0086] Furthermore, since the venting point in this application is pre-installed and extended onto the interior wall, it greatly facilitates daily maintenance and venting operations. Users or maintenance personnel can easily handle the task without damaging the wall or conducting complex troubleshooting. Of course, since the manifolds currently used also have this function, when the building is mainly equipped with centralized heating and a manifold, a wall structure with venting components may not be required.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated wall-embedded radiant heating system, characterized in that, The system includes a wall structure, heating pipes, and a connecting assembly. The wall structure comprises a wall base and a positioning core. The wall base is cast and formed to create an inner cavity. The positioning core is located within the inner cavity of the wall base and has positioning intervals. The heating pipes are laid within these positioning intervals. The inlet end of the heating pipe is located at the bottom of one side of the wall structure, and the outlet end is located at the bottom of the other side of the wall structure. The connecting assembly is used to connect the inlet end and the outlet end of the heating pipe.

2. The prefabricated wall-embedded radiant heating system according to claim 1, characterized in that, The wall base includes an outer pouring layer and an inner pouring layer, both of which are formed by pouring fine aggregate concrete, and the outer pouring layer and the inner pouring layer cover the positioning core.

3. The prefabricated wall-embedded radiant heating system according to claim 1, characterized in that, The wall base includes a first base, a second base, a third base, and a fourth base. The first base has a first mating protrusion extending vertically on one end face corresponding to the water inlet end of the heating pipe, and a first mating recess on the other end face. In two adjacent first bases, the first mating protrusion of one first base is tongue-and-groove connected to the first mating recess of the other first base. The second base has a second mating recess extending vertically on one side face corresponding to the water outlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end. The third base has three third mating recesses extending vertically on each of the three sides corresponding to the water inlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end. The fourth base has a second mating protrusion extending vertically on one side face corresponding to the water outlet end of the heating pipe, and a first mating protrusion on one end face corresponding to the water inlet end.

4. The prefabricated wall-embedded radiant heating system according to claim 1, characterized in that, The docking assembly includes a straight connector, an elbow, a tee, or a cross connector. The straight connector is used to connect two adjacent heating pipes arranged in the wall structure. The elbow is used to connect two adjacent and perpendicularly arranged heating pipes in the wall structure. The tee connector is used to connect three adjacent heating pipes in the wall structure. The cross connector is used to connect four adjacent heating pipes in the wall structure arranged in a cross shape.

5. The prefabricated wall-embedded radiant heating system according to claim 1, characterized in that, The positioning core includes a plate and multiple positioning protrusions, which are arranged in an array on the plate to form the positioning interval; the heating pipe is arranged in a serpentine pattern on the plate.

6. The prefabricated wall-embedded radiant heating system according to claim 1, characterized in that, The wall base has a clearance notch at the bottom position on the side corresponding to the water inlet end of the heating pipe for connecting the heating pipe.

7. The prefabricated wall-embedded radiant heating system according to claim 2, characterized in that, The wall structure also includes a thermal insulation layer, which is located between the outer cast layer and the positioning inner core.

8. The prefabricated wall-embedded radiant heating system according to claim 2, characterized in that, An extension is formed at the bottom of the wall base, which is used for the connection between the wall structure and the floor slab, and the extension is formed by the outer pouring layer and the inner pouring layer.

9. The prefabricated wall-embedded radiant heating system according to any one of claims 1-8, characterized in that, It also includes an exhaust assembly, one end of which is connected to the heating pipe and the other end extends out of the wall base to exhaust the gas inside the heating pipe.

10. The prefabricated wall-embedded radiant heating system according to claim 9, characterized in that, The exhaust assembly includes a connecting pipe and an exhaust valve. The exhaust valve is located outside the wall base and is connected to one end of the connecting pipe. The other end of the connecting pipe is connected to the heating pipe.

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