A pipeline integrated autoclaved aerated concrete wallboard

Abstract

The utility model discloses a pipeline integration steam pressure gas concrete wallboard, include: steam pressure gas concrete wallboard main part, set up in pipeline passageway in wallboard main part inside, pipeline passageway is by at least one straight line pipeline passageway and at least one broken line pipeline passageway intercommunication composition, the inner wall of the turning of broken line pipeline passageway forms the smooth transition curved surface of succession, and the straight line / broken line pipeline passageway with the notched opening in wallboard is prefabricated, is reinforced through reinforcing mesh, adopts high temperature easy vaporization inner mould, high temperature resistant pipeline or detachable metal inner mould process forming. This scheme realizes wall body-pipeline-notched opening integration prefabrication, exempts from on -the -spot grooving, promotes structural strength and construction efficiency, adapts to multiple wiring scene, is the efficient solution of assembly type building electrical pre -buried.

Description

Technical Field

[0001] This utility model belongs to the field of building wall technology, specifically relating to an integrated autoclaved aerated concrete wall panel for pipelines. Background Technology

[0002] Autoclaved aerated concrete (AAC) wall panels are widely used in building walls due to their advantages such as lightweight, thermal insulation, and fire resistance. However, traditional wall panels require on-site trenching and drilling for pipelines, which presents the following problems:

[0003] 1. On-site grooving damages the wall panel structure, which can easily lead to cracking, hollowing, and reduced wall strength;

[0004] 2. Pipeline layout requires manual positioning, which has low accuracy, is prone to conflict with steel bars, and increases construction difficulty;

[0005] 3. After grooving, secondary filling and repair are required, which is a complicated process and extends the construction period.

[0006] In existing technologies, some precast wall panels attempt to embed straight pipelines, but lack structural design for bends and the connection between pipelines and wiring slots, and do not solve the problem of easy damage to the walls around the pipelines; their manufacturing process mostly adopts post-drilling or simple pre-embedding, which cannot take into account both structural strength and pipeline layout flexibility. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model aims to provide an integrated autoclaved aerated concrete wall panel for pipelines, which solves the problems of many defects in on-site grooving of traditional wall panels, poor flexibility in pipeline layout, and insufficient structural strength.

[0008] This utility model proposes an integrated autoclaved aerated concrete wall panel for pipelines, comprising:

[0009] Autoclaved aerated concrete wall panel main body;

[0010] Pipeline channels are formed inside the wall panel body. The pipeline channels are composed of at least one straight pipeline channel and at least one zigzag pipeline channel connected together. The inner wall of the bend of the zigzag pipeline channel forms a continuous smooth transition surface.

[0011] A steel mesh assembly embedded inside the wall panel body, the steel mesh assembly comprising: a main steel mesh extending along the wall panel body, and an annular reinforcing steel bar surrounding the outer periphery of the pipeline channel, wherein the annular reinforcing steel bar is fixedly connected to the main steel mesh.

[0012] A groove is formed on the outer surface of the wall panel body, the groove is connected to the end of the pipeline channel, and the annular reinforcing steel bar is embedded in the outer periphery of the groove.

[0013] This technical solution eliminates the need for on-site trenching, solves the problem of wall cracking, and improves the flexibility of pipeline layout and structural integrity.

[0014] Preferably, the turning angle of the zigzag pipeline channel is 45° or 90°, and the radius of curvature of the smooth transition surface is 3 to 5 times the inner diameter of the pipeline channel.

[0015] By adopting the above technical solutions, we can adapt to the needs of corner wiring, avoid damage from pipe bending, and improve the smoothness of wiring.

[0016] Preferably, the inner diameter of the pipeline channel is 18mm to 25mm, the mesh size of the annular reinforcing steel bar is 30mm×30mm to 60mm×60mm, and the minimum distance between the annular reinforcing steel bar and the outer wall of the pipeline channel is 15mm to 25mm.

[0017] By adopting the above technical solutions, the structural strength around the pipeline is enhanced, cracking around the passage is prevented, and the load-bearing capacity of the wall is improved.

[0018] Preferably, the main steel mesh and the annular reinforcing steel are tied together with binding wire, the spacing between binding points is 100mm to 200mm, and the length of the annular reinforcing steel extending along the outer periphery of the groove is not less than 50mm.

[0019] By adopting the above technical solutions, the connection of the steel mesh is ensured to be stable, the crack resistance around the groove is strengthened, and the overall structural stability is improved.

[0020] Preferably, the cross-section of the groove is rectangular, with a length of 50mm to 350mm, a width of 50mm to 250mm, and a depth of 30mm to 80mm, and the inner wall of the groove where it connects with the pipeline channel forms a rounded corner with a radius of 5mm to 10mm.

[0021] By adopting the above technical solution, the installation of junction boxes can be adapted to ensure the precision of the groove forming and reduce the need for subsequent finishing processes.

[0022] Preferably, a high-temperature resistant sleeve is fixedly embedded in the pipeline channel. The high-temperature resistant sleeve is a braided silicone sleeve or a corundum sleeve, the outer wall of which is fitted with the inner wall of the pipeline channel, and both ends of the sleeve are flush with the inner wall of the groove.

[0023] By adopting the above technical solutions, pipelines are protected from wear, adapted to high-temperature environments, and their service life is extended.

[0024] Preferably, the thickness of the wall panel body is 100mm or 200mm, and the pipeline channel extends along the length or height of the wall panel body.

[0025] By adopting the above technical solutions, we can adapt to the needs of walls with different thicknesses, optimize corner wiring space, and improve scene adaptability.

[0026] Compared with the prior art, the beneficial results of this utility model are as follows:

[0027] (1) No need for on-site trenching: Prefabricated pipeline channels and trenches avoid damage to the wall during on-site operations and reduce the risk of cracking;

[0028] (2) High structural strength: The ring-shaped reinforcing steel bars surround the pipeline channel and the groove, which enhances the strength of weak areas. Tests show that the flexural strength is increased by more than 20%.

[0029] (3) Flexible pipeline layout: The zigzag pipeline channel adapts to the wiring needs at the corner of the wall, and the smooth transition surface reduces pipeline wear;

[0030] (4) High efficiency: The internal mold vaporization forming process does not require post-core pulling, and the steam curing process completes the hole formation simultaneously, improving production efficiency;

[0031] (5) Strong adaptability: It is compatible with various pipeline types (electric wires, water pipes, etc.) and can be equipped with high-temperature resistant sleeves according to needs. Attached Figure Description

[0032] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0033] Figure 1 This is a schematic diagram of the installation of the integrated autoclaved aerated concrete wall panel with straight pipeline according to an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the installation of the integrated autoclaved aerated concrete wall panel with zigzag pipeline according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the installation of a 100mm thick zigzag pipeline concrete wall panel according to Embodiment 1 of this utility model.

[0036] Figure 4 This is a schematic diagram of the installation of a 200mm thick zigzag pipeline concrete wall panel according to Embodiment 2 of this utility model.

[0037] Figure 5 This is a construction diagram of a pre-embedded zigzag conduit segment according to an embodiment of the present invention;

[0038] Figure 6 Part (a) is a construction diagram of the high-temperature easily vaporized inner mold structure embedded in the groove of the autoclaved aerated concrete wall panel; Figure 6 Part (b) is a construction diagram of the high-temperature resistant inner mold structure embedded in the groove of the autoclaved aerated concrete wall panel;

[0039] Figure 7 This is a schematic diagram of the installation of a 100mm thick straight pipeline concrete wall panel in Embodiment 3 of this utility model.

[0040] Figure 8 This is a schematic diagram of the installation of a 200mm thick straight pipeline concrete wall panel in Embodiment 4 of this utility model.

[0041] Figure 9 This is a construction diagram of a pre-embedded straight conduit segment according to an embodiment of the present utility model;

[0042] Figure 10 Part (a) is a construction diagram of the pre-embedded inner formwork structure for the groove of the autoclaved aerated concrete wall panel; Figure 10 Part (b) is a construction diagram of the high-temperature resistant inner mold structure embedded in the groove of the autoclaved aerated concrete wall panel.

[0043] The meanings of the numbers in the diagram are as follows: 1. Main wall panel; 2. Straight pipeline channel; 3. Zigzag pipeline channel; 4. Steel mesh assembly; 5. Groove. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0045] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] This utility model proposes an integrated autoclaved aerated concrete wall panel for pipelines, such as... Figure 1 As shown, the concrete wall panel includes a wall panel body 1, pipeline channels, a steel mesh assembly 4, and a groove 5. (Refer to...) Figures 1 to 10 Specifically, it includes:

[0047] Autoclaved aerated concrete wall panel body 1; pipeline channels are opened inside the wall panel body 1, and the pipeline channels are composed of at least one straight pipeline channel 2 and at least one broken pipeline channel 3 connected together, and the inner wall of the bend of the broken pipeline channel 3 forms a continuous smooth transition surface.

[0048] The reinforcing mesh assembly 4 is embedded inside the wall panel body 1. The reinforcing mesh assembly 4 includes: a main reinforcing mesh extending along the wall panel body 1, and an annular reinforcing bar surrounding the outer periphery of the pipeline channel, and the annular reinforcing bar is fixedly connected to the main reinforcing mesh. The groove 5 is opened on the outer surface of the wall panel body 1, and the groove 5 is connected to the end of the pipeline channel, and the annular reinforcing bar is embedded in the outer periphery of the groove 5.

[0049] This technical solution eliminates the need for on-site trenching, solves the problem of wall cracking, and improves the flexibility of pipeline layout and structural integrity.

[0050] Preferably, the turning angle of the zigzag conduit channel 3 is 45° or 90°, and the radius of curvature of the smooth transition surface is 3 to 5 times the inner diameter of the conduit channel. This adapts to corner wiring requirements, avoids conduit bending damage, and improves wiring smoothness.

[0051] Preferably, the inner diameter of the pipeline channel is 18mm to 25mm, the mesh size of the annular reinforcing steel is 30mm×30mm to 60mm×60mm, and the minimum distance between the annular reinforcing steel and the outer wall of the pipeline channel is 15mm to 25mm. This enhances the structural strength around the pipeline, prevents cracking around the channel, and improves the load-bearing capacity of the wall.

[0052] Preferably, the main steel mesh and the annular reinforcing steel bars are fixed together by binding wire, with a binding point spacing of 100mm to 200mm. The length of the annular reinforcing steel bars extending along the outer perimeter of the groove 5 is not less than 50mm. This ensures a stable connection of the steel mesh, strengthens the crack resistance around the groove 5, and improves the overall structural stability.

[0053] Preferably, the cross-section of the slot 5 is rectangular, with a length of 50mm to 350mm, a width of 50mm to 250mm, and a depth of 30mm to 80mm. The inner wall of the slot 5 where it connects to the pipeline channel forms a rounded corner with a radius of 5mm to 10mm. This design is suitable for junction box installation, ensures the forming accuracy of the slot 5, and reduces subsequent finishing processes.

[0054] Specifically, when forming the groove 5, the reserved small hole can be prepared by reducing the size of the inner mold for forming the groove: the inner mold adopts a hollow stainless steel mold, and the size is designed according to 20mm×20mm~30mm×30mm. When the inner mold is connected to the end of the pipeline channel, the coaxiality must be ensured to avoid the subsequent hole expansion deviating from the pipeline channel; when expanding the hole in the subsequent decoration stage, a progressive hole expander with a diameter of no more than 100mm should be used to expand the hole along the axial direction of the reserved small hole. The hole expansion depth should not exceed 1 / 2 of the wall panel thickness. Since the reserved hole is surrounded by ring-shaped reinforcing steel bars (mesh size 30mm×30mm~60mm×60mm), it can effectively resist the stress generated by hole expansion and prevent the wall from cracking.

[0055] Preferably, a high-temperature resistant sleeve is fixedly embedded in the pipeline channel. The high-temperature resistant sleeve is a braided silicone sleeve or a corundum sleeve, with its outer wall fitting against the inner wall of the pipeline channel, and both ends of the sleeve flush with the inner wall of the groove 5. This protects the pipeline from wear, adapts to high-temperature environments, and extends the service life of the pipeline.

[0056] In one specific embodiment, the inner mold for forming the pipeline channel can be a core-pulling metal tube, with an outer layer covering the metal tube to reduce the adhesion between the metal tube and the concrete during core pulling. The metal tube includes at least one of stainless steel, galvanized steel, or other high-temperature resistant metal tubes suitable for autoclaving environments. The isolation layer includes at least one of PE stretch film, EPE pearl cotton, other foams suitable for autoclaving environments, or coated oils, waxes, or release agents. The PE stretch film has a thickness of 0.02mm to 0.05mm and an overlap rate of 50% to 70%, the EPE pearl cotton has a thickness of not less than 5mm, and the coated oils, waxes, or release agents have a thickness of 0.1mm to 0.3mm.

[0057] Preferably, the thickness of the wall panel body 1 is 100mm or 200mm, and the pipeline channel extends along the length or height of the wall panel body 1. This adapts to the needs of walls with different thicknesses, optimizes corner wiring space, and improves scene adaptability.

[0058] The following detailed description uses specific examples.

[0059] Example 1:

[0060] like Figure 2 and Figure 3 As shown, this embodiment is a 100mm thick zigzag electrical conduit section-integrated autoclaved aerated concrete wall panel.

[0061] Wall panel body: made of autoclaved aerated concrete material, 100mm thick.

[0062] Pipeline channel: It is located inside the main body of the wall panel 1 and consists of a straight section and a 45° broken line section. The inner diameter of the channel is 20mm. The inner wall of the bend of the broken line section is a smooth transition curved surface with a radius of curvature of 80mm, which is 4 times the inner diameter of the channel.

[0063] Reinforcing mesh assembly: includes main reinforcing mesh and ring reinforcing bars; the main reinforcing mesh is composed of 6mm diameter steel bars with a mesh size of 150mm×150mm; the ring reinforcing bars are composed of 8mm diameter steel bars with a mesh size of 50mm×50mm, which are wrapped around the outer perimeter of the pipeline channel and tied to the main reinforcing mesh with binding wire at a spacing of 150mm.

[0064] Groove: It is opened on the outer surface of the wall panel body 1, with a rectangular cross-section of 100mm×60mm×50mm. It is connected to the end of the pipeline channel. The outer periphery of the groove 5 is embedded with a ring-shaped reinforcing steel bar. The inner wall of the groove 5 at the connection with the pipeline channel forms a rounded corner with a radius of 5mm.

[0065] Optional structure: A braided silicone sleeve can be embedded in the pipeline channel. The sleeve has an outer diameter of 19.5mm, and its outer wall fits against the inner wall of the pipeline channel. Both ends are flush with the inner wall of the groove 5.

[0066] Example 2:

[0067] As shown in Figure 2 and Figure 4 As shown, this embodiment is a 200mm thick zigzag electrical conduit section-integrated autoclaved aerated concrete wall panel.

[0068] Wall panel body: made of autoclaved aerated concrete material, 200mm thick.

[0069] Pipeline channel: It is located inside the main body of the wall panel 1 and consists of a straight section and a 90° broken line section. The inner diameter of the channel is 25mm. The inner wall of the bend of the broken line section is a smooth transition surface with a radius of curvature of 100mm, which is 4 times the inner diameter of the channel.

[0070] Reinforcing mesh assembly: includes main reinforcing mesh and ring-shaped reinforcing bars; the main reinforcing mesh is composed of 8mm diameter steel bars with a mesh size of 200mm×200mm; the ring-shaped reinforcing bars are composed of 10mm diameter steel bars with a mesh size of 60mm×60mm, and are wrapped around the outer perimeter of the pipeline channel, and are tied to the main reinforcing mesh with binding wire at a spacing of 200mm.

[0071] Groove: It is opened on the outer surface of the wall panel body 1, with a rectangular cross-section of 150mm×100mm×80mm. It is connected to the end of the pipeline channel. The outer periphery of the groove 5 is embedded with a ring-shaped reinforcing steel bar. The inner wall of the groove 5 at the connection with the pipeline channel forms a rounded corner with a radius of 8mm.

[0072] Optional structure: A corundum sleeve can be embedded in the pipeline channel. The outer diameter of the sleeve is 24.8mm, the outer wall is fitted with the inner wall of the pipeline channel, and both ends are flush with the inner wall of the groove 5.

[0073] Figure 5 This is a construction drawing for pre-embedded zigzag electrical conduit sections, used for the factory prefabrication and pre-embedding of zigzag electrical conduits within autoclaved aerated concrete wall panels. It achieves integrated molding of conduits and walls, adapting to zigzag wiring scenarios such as wall corners, and avoiding on-site grooving.

[0074] The steel mesh runs through the main body of the wall panel 1, providing structural support for the pipelines and grooves 5, ensuring the overall strength of the wall and the stability of the pipeline positioning.

[0075] Additional fixing steel bars for groove 5: These surround the perimeter of groove 5 and are connected and fixed to the main steel mesh to enhance the crack resistance of groove 5 and prevent cracking in the area of ​​groove 5 due to pipeline pre-embedding.

[0076] The groove 5 is opened on the surface of the wall panel for installing electrical junction boxes; the pre-embedded molding block of the groove 5 is 5-10mm away from the edge. The panel is trimmed and shaped in the factory after cutting to ensure the dimensional accuracy of the groove 5 to fit the junction box installation.

[0077] The zigzag conduit segments are laid along the zigzag path and fixedly connected to the steel mesh to achieve precise positioning of the zigzag conduit, adapting to the zigzag wiring requirements such as wall corners; the hole-forming process is divided into two types:

[0078] Hole forming of easily vaporizable materials: Pre-embed solid pearl cotton rods, EPE polyethylene foam rods and other easily vaporizable / meltable materials. During autoclaving, the material vaporizes to form zigzag pipeline channels 3. Reinforcing bars are added for fixation where there are no reinforcing bars.

[0079] Pre-embedded high-temperature resistant pipes: directly pre-embed braided silicone tubes, polytetrafluoroethylene tubes and other high-temperature resistant pipes, the pipes are fixed to the steel mesh, suitable for high-temperature and fire-resistant areas with zigzag wiring.

[0080] Figure 6 Part (a) is a construction drawing of the high-temperature easily vaporizable inner mold structure for pre-embedded grooves in autoclaved aerated concrete wall panels. It is used to reserve electrical junction box grooves 5 in the wall panels during the factory prefabrication stage. The grooves 5 are precisely formed by high-temperature easily vaporizable materials such as pearl cotton and EPS foam. It is a key link in the pre-embedded electrical process of prefabricated buildings.

[0081] The double-layer steel mesh provides structural support for the groove 5 area and is connected and fixed to the steel mesh of the wall panel body 1 to ensure the strength of the wall around the groove 5 and prevent cracking.

[0082] The inner mold material of slot 5 is made of materials that are easily vaporized or melted at high temperatures, such as pearl cotton foam blocks, EPS polystyrene foam boards, and XPS extruded boards. During autoclaving, the vaporization disappears, leaving space for slot 5.

[0083] The methods for fixing the inner mold include: using tape to bond the reinforcing mesh to ensure the stability of the inner mold during the pouring process; cutting and inserting the inner mold where it encounters reinforcing bars to achieve a proper fit between the inner mold and the reinforcing mesh; and inserting the inner mold into holes at the wire holes to ensure the accuracy of the pipeline installation position.

[0084] The forming process of slot 5: After the plate is cut and formed, it is trimmed in the factory. The forming block is embedded 5-10mm away from the edge of slot 5 to ensure the dimensional accuracy of slot 5 and to adapt to the installation of electrical junction boxes.

[0085] Figure 6Part (b) is a construction drawing of the high-temperature resistant inner mold structure for pre-embedded grooves in autoclaved aerated concrete wall panels. It is used to accurately reserve electrical junction box grooves 5 in the wall panels during the factory prefabrication stage. The grooves 5 are formed by the detachable high-temperature resistant inner mold, which is a key technical solution for the pre-embedded electrical process in prefabricated buildings.

[0086] The double-layer steel mesh provides structural support for the groove 5 area and is connected and fixed to the steel mesh of the wall panel body 1 to ensure the strength of the wall around the groove 5 and prevent cracking.

[0087] The high-temperature resistant inner mold is made of hollow stainless steel or hollow galvanized steel plate and covered with PE wrapping film. It has the characteristics of high temperature resistance and easy removal, and is used to accurately reserve slot space.

[0088] Detachable components of the inner mold: The inner mold cover plate and the inner mold base plate are removable, which facilitates the removal of the inner mold and cleaning of the groove 5 before the junction box is installed.

[0089] Inner mold side plate: The side plate has holes and slots for threading conduits and reinforcing bars, so as to achieve coordinated positioning of conduits, reinforcing bars and slot 5, and ensure installation accuracy.

[0090] The forming process of slot 5: After the plate is cut and formed, it is trimmed in the factory. The forming block is embedded 5-10mm away from the edge of slot 5 to ensure the dimensional accuracy of slot 5 and to adapt to the installation of electrical junction boxes.

[0091] Example 3:

[0092] like Figure 7 As shown, this embodiment is a 100mm thick straight electrical conduit section-integrated autoclaved aerated concrete wall panel.

[0093] Wall panel body 1: Made of autoclaved aerated concrete material, 100mm thick.

[0094] Pipeline channel: It is opened inside the main body of the wall panel 1, in a vertical straight line, extending along the height of the wall panel. The inner diameter of the channel is 20mm, and the inner wall is smooth to facilitate the installation of wires.

[0095] Reinforcing mesh assembly: includes main reinforcing mesh and reinforcing bars around the pipeline; the main reinforcing mesh is composed of 6mm diameter steel bars with a mesh size of 150mm×150mm; the reinforcing bars are composed of 8mm diameter steel bars with a mesh size of 50mm×50mm, which are wrapped around the outer perimeter of the pipeline channel and tied to the main reinforcing mesh with binding wire at a spacing of 150mm.

[0096] Connection structure: The top of the wall panel is welded and fixed to the building structure beam by a 5mm thick pre-embedded connecting steel plate, with a welding length of not less than 100mm; the bottom is fixed to the structural plate by special anchor bolts with a bolt spacing of 600mm.

[0097] Junction box slot 5: It is opened on the outer surface of the wall panel body 1 and is connected to the end of the pipeline channel. The cross-section is rectangular with dimensions of 100mm×60mm×50mm. The inner wall of the slot 5 where it connects with the pipeline channel forms a rounded corner with a radius of 5mm. Reinforcing steel bars are embedded on the outer periphery of the slot 5.

[0098] Example 4:

[0099] like Figure 8 As shown, this embodiment is a 200mm thick straight electrical conduit section-integrated autoclaved aerated concrete wall panel.

[0100] Wall panel body: made of autoclaved aerated concrete material, 200mm thick.

[0101] Pipeline channels: They are located inside the main body of the wall panel 1, and are in multiple vertical straight lines that extend in parallel along the height of the wall panel. The inner diameter of each channel is 25mm, and the distance between each channel is not less than 50mm.

[0102] Reinforcing mesh assembly: includes main reinforcing mesh and reinforcing bars around the pipeline; the main reinforcing mesh is composed of steel bars with a diameter of 8mm and a mesh size of 200mm×200mm; each pipeline channel is surrounded by reinforcing bars with a diameter of 10mm and a mesh size of 60mm×60mm, which are tied and fixed to the main reinforcing mesh with binding wire at a spacing of 200mm.

[0103] Connection structure: The top of the wall panel is welded and fixed to the building structure beam by a 6mm thick pre-embedded connecting steel plate, with a welding length of not less than 150mm; the bottom is fixed to the structural plate by special anchor bolts with a spacing of 500mm.

[0104] Junction box slot: It is opened on the outer surface of the wall panel body 1 and is connected to the end of multiple sets of pipeline channels. The cross-section is rectangular, with dimensions of 150mm×100mm×80mm. The inner wall of the slot 5 where it connects with the pipeline channel forms a rounded corner with a radius of 8mm. The outer periphery of the slot 5 is embedded with reinforcing steel bars, which can be adapted to the installation of multi-way junction boxes.

[0105] Specifically, such as Figure 9 As shown, Figure 9 This is a construction diagram of the pre-embedded straight electrical conduit segment according to an embodiment of the present utility model. The steel mesh penetrates the main body 1 of the wall panel, providing support for the overall structure and serving as the basic load-bearing structure for the conduit and the groove 5.

[0106] Additional fixing steel bars for the groove: These are placed around the groove 5 to enhance the crack resistance of the groove 5 area and are connected and fixed to the main steel mesh.

[0107] The groove 5 is opened on the surface of the wall panel for installing electrical junction boxes. The pre-embedded molding block at its edge needs to be recessed by 5-10mm. After the panel is cut, it is trimmed and shaped in the factory to ensure compatibility with the junction box.

[0108] Straight pipe sections are fixedly connected to steel mesh to achieve precise pipeline positioning. Based on the drilling process, there are three structural forms:

[0109] Hole structure with easily vaporizable materials: pre-embedded solid pearl cotton rods, EPE polyethylene foam rods and other easily vaporizable / meltable materials, the materials vaporize during autoclaving to form pipeline channels, and additional steel bars are used to fix the materials where there are no steel bars.

[0110] Pre-embedded high-temperature resistant pipeline structure: directly pre-embed high-temperature resistant pipelines such as braided silicone tubes, polytetrafluoroethylene tubes, ceramic tubes, corundum tubes, and high-alumina tubes, and fix the pipelines to the steel mesh.

[0111] Pipe core extraction structure: A stainless steel pipe or galvanized steel pipe wrapped with PE film is pre-embedded, and after autoclaving, the steel pipe is extracted to form a pipeline channel.

[0112] Process details and structure: The pre-embedded forming block at the edge of groove 5 needs to be recessed by 5-10mm, and the plate is trimmed in the factory after cutting; the fixed spacing between the straight pipe section and the steel mesh, and the size of the additional steel bars in groove 5 need to be strictly controlled to ensure the forming accuracy of the pipeline and groove 5.

[0113] Figure 10 Part (a) is a construction drawing of the embedded inner mold structure for the groove of autoclaved aerated concrete wall panel. It is used to reserve the groove 5 of electrical junction box in the wall panel during the factory prefabrication stage. The groove 5 is accurately formed by the high temperature and easy vaporization inner mold material, which is a key link in the prefabrication process of electrical wiring in prefabricated buildings.

[0114] A single layer of steel mesh provides structural support for the groove 5 area and is connected and fixed to the steel mesh of the wall panel body 1 to ensure the strength of the wall around the groove 5 and prevent cracking.

[0115] The inner mold material of slot 5 is made of high-temperature easily vaporized or melted inner mold materials such as pearl cotton foam blocks, EPS polystyrene foam boards, and XPS extruded boards. It vaporizes and disappears during autoclaving, leaving space for slot 5.

[0116] The methods for fixing the inner mold include: using tape to bond the reinforcing mesh to ensure the stability of the inner mold during the pouring process; cutting and inserting the inner mold where it encounters reinforcing bars to achieve a proper fit between the inner mold and the reinforcing mesh; and inserting the inner mold into holes at the wire holes to ensure the accuracy of the pipeline installation position.

[0117] The forming process of slot 5: After the plate is cut and formed, it is trimmed in the factory. The forming block is embedded 5-10mm away from the edge of slot 5 to ensure the dimensional accuracy of slot 5 and to adapt to the installation of electrical junction boxes.

[0118] Figure 10Part (b) is a construction drawing of the high-temperature resistant inner mold structure for pre-embedded grooves in autoclaved aerated concrete wall panels. It is used to accurately reserve electrical junction box grooves 5 in the wall panels during the factory prefabrication stage. The grooves 5 are formed by the detachable high-temperature resistant inner mold, which is a key technical solution for the pre-embedded electrical process in prefabricated buildings.

[0119] A single layer of steel mesh provides structural support for the groove 5 area, and is connected and fixed to the steel mesh of the wall panel body 1 to ensure the strength of the wall around the groove 5 and prevent cracking.

[0120] The high-temperature resistant inner mold is made of hollow stainless steel or hollow galvanized steel plate and covered with PE wrapping film. It has the characteristics of high temperature resistance and easy removal, and is used to accurately reserve slot space.

[0121] Detachable components of the inner mold: The inner mold cover plate and the inner mold base plate are removable, which facilitates the removal of the inner mold and cleaning of the groove 5 before the junction box is installed.

[0122] Inner mold side plate: The side plate has holes and slots for threading conduits and reinforcing bars, so as to achieve coordinated positioning of conduits, reinforcing bars and slot 5, and ensure installation accuracy.

[0123] The forming process of slot 5: After the plate is cut and formed, it is trimmed in the factory. The forming block is embedded 5-10mm away from the edge of slot 5 to ensure the dimensional accuracy of slot 5 and to adapt to the installation of electrical junction boxes.

[0124] As a preferred option, when using a core-pulling metal pipe as the inner mold for pipeline forming, the metal pipe selection must be suitable for the autoclaving environment (174℃~203℃, 1.2MPa~1.35MPa). Galvanized steel pipes must meet corrosion resistance requirements (coating thickness not less than 8μm), and high-temperature resistant metal pipes must have heat resistance of not less than 203℃. The selection of isolation materials must take into account both 'anti-sticking' and 'convenience of construction': pearl cotton (EPE foam) can be directly sleeved and covered without additional wrapping, and its cushioning properties can prevent the metal pipe from deforming during vibration. The coating wax must be evenly brushed on the surface of the metal pipe to ensure no omissions. After autoclaving, the wax can evaporate in small amounts with the steam without leaving any residue that would affect the accuracy of the pipeline channel.

[0125] It should be noted that the selection of the above-mentioned isolation materials can be flexibly adjusted according to production needs: for example, when mass-producing straight pipelines, PE stretch film is preferred (low cost and high efficiency); EPE pearl cotton (good cushioning) can be used for zigzag pipelines or large-diameter pipelines; and for scenarios with high requirements for construction speed, coating oils or release agents can be used (no wrapping / coating process required). As long as the material meets the core functions of "stable existence under autoclaving and reducing the adhesion between metal pipes and concrete", it falls within the protection scope of this invention.

[0126] In practical applications, the core-pulling effect can be further optimized by adjusting the material thickness and coating / wrapping process parameters (such as winding tension and coating speed) to ensure that the inner wall of the pipeline channel is smooth and undamaged, and to meet the dimensional accuracy requirements of subsequent pipeline laying (coaxiality deviation ≤2mm).

[0127] The specific embodiments of this utility model have been described above, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

[0128] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. An integrated autoclaved aerated concrete wall panel for pipelines, characterized in that, include: Autoclaved aerated concrete wall panel main body; Pipeline channels are formed inside the wall panel body. The pipeline channels are composed of at least one straight pipeline channel and at least one zigzag pipeline channel connected together. The inner wall of the bend of the zigzag pipeline channel forms a continuous smooth transition surface. A steel mesh assembly embedded inside the wall panel body, the steel mesh assembly comprising: a main steel mesh extending along the wall panel body, and an annular reinforcing steel bar surrounding the outer periphery of the pipeline channel, wherein the annular reinforcing steel bar is fixedly connected to the main steel mesh. A groove is formed on the outer surface of the wall panel body, the groove is connected to the end of the pipeline channel, and the annular reinforcing steel bar is embedded in the outer periphery of the groove.

2. The concrete wall panel according to claim 1, characterized in that, The turning angle of the zigzag pipeline channel is 45° or 90°, and the radius of curvature of the smooth transition surface is 3 to 5 times the inner diameter of the pipeline channel.

3. The concrete wall panel according to claim 1, characterized in that, The inner diameter of the pipeline channel is 18mm to 25mm, the mesh size of the annular reinforcing steel bar is 30mm×30mm to 60mm×60mm, and the minimum distance between the annular reinforcing steel bar and the outer wall of the pipeline channel is 15mm to 25mm.

4. The concrete wall panel according to claim 1, characterized in that, The main steel mesh and the annular reinforcing steel are tied together with binding wire, and the spacing between binding points is 100mm to 200mm. The length of the annular reinforcing steel extending along the outer perimeter of the groove is not less than 50mm.

5. The concrete wall panel according to claim 1, characterized in that, The cross-section of the groove is rectangular, with a length of 50mm to 350mm, a width of 50mm to 250mm, and a depth of 30mm to 80mm. The inner wall of the groove where it connects with the pipeline channel forms a rounded corner with a radius of 5mm to 10mm.

6. The concrete wall panel according to claim 1, characterized in that, A high-temperature resistant sleeve is fixedly embedded in the pipeline channel. The high-temperature resistant sleeve is a braided silicone sleeve or a corundum sleeve. Its outer wall is fitted with the inner wall of the pipeline channel, and both ends of the sleeve are flush with the inner wall of the groove.

7. The concrete wall panel according to claim 1, characterized in that, The wall panel body has a thickness of 100mm or 200mm, and the pipeline channel extends along the length or height of the wall panel body.

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