A prefabricated, thermal bridge-free, large-scale thermal insulation block rural housing system

Abstract

This invention relates to a prefabricated, thermally bridge-free, large-scale insulated block housing system, specifically a prefabricated residential building. The invention addresses the problems of insufficient insulation, heat storage, thermal stability, and winter thermal bridging in insulated block housing, as well as the complex construction process and long construction period. The prefabricated residential building constructed from insulated block composite walls is a multi-story building, including a top-floor unit, multiple mid-floor units, and a ground-floor unit. Each ground-floor unit comprises block walls, insulated interlocking interior walls, formwork-free concrete beams, formwork-free concrete columns, insulated and heat-storing concrete floors, insulated and heat-storing reinforced concrete floor slabs, insulated roof panels, and a sunroom. This prefabricated residential building constructed from insulated block composite walls exhibits good insulation, energy-saving performance, and disaster resistance. All components can be prefabricated in a factory, resulting in a high degree of assembly. The assembly method of this invention significantly improves construction speed and reduces the requirements for construction technology and equipment.

Description

Technical Field

[0001] This invention relates to a prefabricated housing. Background Technology

[0002] In recent years, a large number of prefabricated rural houses have sprung up in rural areas, making the research on prefabricated rural houses more socially valuable.

[0003] However, the development of prefabricated rural housing still faces many challenges in rural areas with frigid climates. On the one hand, due to the low temperatures of these regions, the insulation requirements for rural housing are generally higher than in other climate zones. Furthermore, the large temperature difference between indoors and outdoors in winter leads to more severe heat loss due to thermal bridging during housing maintenance. Simultaneously, with technological advancements and higher demands for energy conservation, the requirements for passive energy-saving effects in housing are constantly increasing. Therefore, many traditional local methods used in rural housing construction in frigid regions are gradually becoming insufficient to meet the housing requirements of rural construction in the new era. On the other hand, many prefabricated housing systems that are already maturely applied in cities face difficulties in promotion in rural areas. For example, prefabricated hollow shear wall systems, modular prefabricated systems, and prefabricated container systems all involve large hoisting equipment during construction. The scale of construction sites and road transport conditions in rural areas cannot support the application of such large equipment, which to some extent hinders the popularization of these building systems in rural areas with frigid climates. For example, lightweight steel structure systems, represented by light steel keel systems, have high requirements for the specifications and precision of assembled components. However, rural building material processing plants are mostly small workshops run by individual businesses, and their processing level is difficult to meet the various requirements of this type of building. For some remote rural areas with inconvenient transportation, transporting from the city will increase transportation costs significantly. Local craftsmen are also not very familiar with the construction process of this type of new building system, and often encounter problems such as not knowing how to construct or poor construction quality.

[0004] Currently, insulated block housing systems are widely used in rural areas of frigid regions. This type of building system inherits the construction characteristics of traditional masonry structures, with smaller component (block) sizes, while improving thermal insulation performance, making it widely used in newly built rural houses in most frigid areas. However, the currently used insulated block systems have not completely broken away from the masonry construction mode, and problems such as small block sizes, large wet work volume, complex construction process, and long construction period still exist. Thermal bridges at beams, columns, and mortar joints still cause significant heat loss in winter, resulting in poor thermal insulation, heat storage, and thermal stability. Therefore, it is particularly important to propose a prefabricated housing system with superior thermal insulation performance, low thermal bridge effect, adaptability to rural construction modes, transportation levels, and industrial production conditions, and rapid construction capability. Summary of the Invention

[0005] This invention addresses the shortcomings of existing insulated block housing in terms of insulation, heat storage, thermal stability, and thermal bridging in winter, while also resolving issues of complex construction processes and long construction periods. It proposes a prefabricated, thermal bridge-free, large-scale insulated block rural housing system and its assembly method. This prefabricated, thermal bridge-free, large-scale insulated block rural housing system exhibits superior thermal performance, energy efficiency, and disaster resistance. All components can be prefabricated in a factory, resulting in a high degree of assembly, ease of transportation and assembly, and significant lightweight characteristics. The assembly method of this invention greatly improves construction speed and significantly reduces the requirements for construction technology and equipment during the construction of prefabricated housing.

[0006] The prefabricated, thermal bridge-free, large-scale insulated block rural housing system of this invention is a multi-story residential building, including a top-floor residential unit, multiple middle-floor residential units, and a bottom-floor residential unit;

[0007] The ground floor residential unit consists of a block wall (1), an insulated embedded interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing concrete floor (5), an insulated and heat-storing reinforced concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing concrete floor (5), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), the block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing concrete floor (5), and the insulated and heat-storing reinforced concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The insulated embedded interior wall (2) is located inside the ground floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the ground floor residential unit.

[0008] Multiple mid-rise residential units are located between the top-floor and bottom-floor residential units. Each mid-rise residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing steel-concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6), and the insulated and heat-storing steel-concrete floor slab (6). The insulated inlaid interior wall (2) is located inside the mid-rise residential unit. The sunroom (8) is located on the outside of the block wall (1) of the mid-rise residential unit.

[0009] The top-floor residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated roof panel (7), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated roof panel (7) is located on the upper surface of the formwork-free concrete beam (3). The insulated inlaid interior wall (2) is located inside the top-floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the top-floor residential unit.

[0010] The block wall (1) is composed of upper blocks (9), middle blocks (10) and lower blocks (11);

[0011] The insulated embedded inner wall (2) is composed of an inner wall XPS insulation layer (36) and an inner wall surface layer (37);

[0012] The formwork-free concrete beam (3) consists of a concrete beam reinforcing cage (12), a concrete beam XPS insulation layer (13), and a concrete beam magnesium oxychloride cement reinforced surface layer (14). The concrete beam reinforcing cage (12) is placed between two layers of concrete beam XPS insulation layer (13), and the concrete beam magnesium oxychloride cement reinforced surface layer (14) is placed on the outer surface of the outer concrete beam XPS insulation layer (13). Concrete is filled between the two layers of concrete beam XPS insulation layer (13). The concrete beam XPS insulation layer (13) and the concrete beam magnesium oxychloride cement reinforced surface layer (14) constitute the formwork-free structure. A galvanized square steel pipe is installed in the concrete beam reinforcing cage (12). The XPS insulation layer (13) of the concrete beam on the side is connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screw holes on the inner XPS insulation layer (13) of the concrete beam are sealed with polyurethane plugs. The XPS insulation layer (13) of the concrete beam on the outside and the magnesium oxychloride reinforced surface layer (14) of the concrete beam are connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screws on the outside of the magnesium oxychloride reinforced surface layer (14) of the concrete beam are fitted with XPS spacers (15). The XPS spacers (15) and polyurethane plugs are used to eliminate the thermal bridging effect caused by the self-tapping screws.

[0013] The formwork-free concrete column (4) consists of a concrete column reinforcement cage (38), a concrete column XPS insulation layer (39), and a concrete column magnesium oxychloride cement reinforcement surface layer (40). The sides of the two concrete column XPS insulation layers (39) in the formwork-free concrete column (4) are perpendicular to each other. The concrete column reinforcement cage (38) is set on one side of the two concrete column XPS insulation layers (39). Concrete is filled inside the concrete column reinforcement cage (38) and between the concrete column reinforcement cage (38) and the concrete column XPS insulation layer (39). The concrete column magnesium oxychloride cement reinforcement surface layer (40) is set on the outer surface of the two concrete column XPS insulation layers (39). The concrete column XPS insulation layer (39) and the concrete column magnesium oxychloride cement reinforcement surface layer (40) constitute the formwork-free formwork. A galvanized square steel pipe is set in the concrete column reinforcement cage (38).

[0014] The thermal insulation and heat storage concrete floor (5) is composed of a concrete floor cushion layer (16), a thermal insulation mortar layer under the floor (17), a XPS thermal insulation layer (18), a thermal insulation and heat storage connection layer (19), a heat storage layer (20), a thermal insulation mortar layer on the floor (21), and a floor surface layer (22) arranged sequentially from bottom to top.

[0015] The thermal insulation and heat storage steel-concrete floor slab (6) is composed of an aerated concrete layer (23) under the floor slab, a corrugated steel plate (24), an aerated concrete layer (25) on the floor slab, an XPS insulation layer (26) on the floor slab, a thermal insulation and heat storage connection layer (27) on the floor slab, a heat storage layer (28) on the floor slab, and a floor surface layer (29) in sequence from bottom to top.

[0016] The insulated roof panel (7) consists of a roof XPS insulation layer (34) and a roof surface layer (35). The roof XPS insulation layer (34) is located between the two roof surface layers (35). The sides of adjacent roof XPS insulation layers (34) are connected by mortise and tenon joints.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the prefabricated, thermal bridge-free, large-scale insulated block rural housing system of this invention, a certain thickness of XPS insulation layer is set at various locations and at the connection points of various components, including block walls, formwork-free concrete beams and columns, insulated and heat-storage concrete floors, insulated and heat-storage reinforced concrete floors, insulated embedded interior walls, and so on. This ensures that the indoor space is completely and tightly wrapped in the insulation layer, minimizing the impact of thermal bridges in winter and significantly improving the thermal insulation and energy-saving performance of the house.

[0019] 2. The prefabricated, thermally bridge-free, large-scale insulated block rural housing system of this invention incorporates heat storage layers in the exterior walls, ground, and floor slabs, significantly improving the insulation, heat storage, and thermal inertia of each component, thereby enhancing the overall thermal stability and energy efficiency of the house. Furthermore, the use of a sunroom further enhances the house's heat collection and storage capacity, improving its thermal performance and energy efficiency in multiple ways.

[0020] 3. The prefabricated thermal bridge-free large-scale insulated block rural housing system of the present invention uses galvanized steel pipes to replace traditional longitudinal reinforcements in the concrete beams and columns that do not require demolition of formwork, adds corrugated steel plates in the floor slabs, and uses the combination of the two ends of the steel strand (07) and the longitudinal reinforcement (038) in the block walls, which greatly improves the load-bearing capacity and disaster resistance of the house.

[0021] 4. In this invention, all components of the prefabricated, thermally bridge-free, large-scale insulated block rural housing system can be prefabricated in the factory, resulting in a high degree of assembly. After the main components such as block walls, beams, and columns are positioned and installed, they can be cast in one go on the construction site with the use of non-removable formwork. This improves the speed of construction while reducing the requirements for construction technology and equipment, and saves on formwork usage. The non-removable formwork for beams and columns also serves as insulation and thermal break during the operation and maintenance phase, making full use of the components. Attached Figure Description

[0022] Figure 1 A structural schematic diagram of a prefabricated, thermal bridge-free, large-scale thermal insulation block rural housing system;

[0023] Figure 2 A structural schematic diagram of the concrete beam (3) that requires no formwork removal;

[0024] Figure 3 A structural schematic diagram of a concrete column (4) that requires no formwork removal;

[0025] Figure 4 A schematic diagram of the structure of the thermal insulation and heat storage concrete floor (5);

[0026] Figure 5 A schematic diagram of the structure of the heat-insulating and heat-storing steel-concrete floor slab (6);

[0027] Figure 6 This is a structural schematic diagram of the connection between adjacent insulated and heat-storage steel-concrete floor slabs (6);

[0028] Figure 7 A schematic diagram of the structure of the insulated roof panel (7);

[0029] Figure 8 A structural schematic diagram of the insulated embedded interior wall (2);

[0030] Figure 9 This is a structural diagram of the central block;

[0031] Figure 10 This is a structural diagram of the top block;

[0032] Figure 11 for Figure 10 Inner view of the inner phase change thermal insulation mortar layer (02);

[0033] Figure 12 for Figure 10 An inverted view;

[0034] Figure 13 This is a structural diagram of the bottom block;

[0035] Figure 14 for Figure 13 Inner view of the middle and outer phase change thermal insulation mortar layer (01);

[0036] Figure 15 A schematic diagram showing the overlapping of the circular loops at the ends of adjacent steel strands (07);

[0037] Figure 16 A schematic diagram of the structure of the joint casting cavity (039). Detailed Implementation

[0038] The technical solution of the present invention is not limited to the specific embodiments listed below, but also includes any reasonable combination of the specific embodiments.

[0039] Specific implementation method one: The prefabricated thermal bridge-free large-scale thermal insulation block rural housing system in this implementation method is a multi-story residential building, including a top-floor residential unit, multiple middle-floor residential units and a bottom-floor residential unit;

[0040] The ground floor residential unit consists of a block wall (1), an insulated embedded interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing concrete floor (5), an insulated and heat-storing reinforced concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing concrete floor (5), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), the block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing concrete floor (5), and the insulated and heat-storing reinforced concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The insulated embedded interior wall (2) is located inside the ground floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the ground floor residential unit. The sunroom (8) is located on the ground floor.

[0041] Multiple mid-rise residential units are located between the top-floor and bottom-floor residential units. Each mid-rise residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing steel-concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6), and the insulated and heat-storing steel-concrete floor slab (6). The insulated inlaid interior wall (2) is located inside the mid-rise residential unit. The sunroom (8) is located on the outside of the block wall (1) of the mid-rise residential unit.

[0042] The top-floor residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated roof panel (7), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated roof panel (7) is located on the upper surface of the formwork-free concrete beam (3). The insulated inlaid interior wall (2) is located inside the top-floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the top-floor residential unit.

[0043] The block wall (1) is composed of upper blocks (9), middle blocks (10) and lower blocks (11);

[0044] The insulated embedded inner wall (2) is composed of an inner wall XPS insulation layer (36) and an inner wall surface layer (37);

[0045] The formwork-free concrete beam (3) consists of a concrete beam reinforcement cage (12), a concrete beam XPS insulation layer (13), and a concrete beam magnesium oxychloride cement reinforced surface layer (14). The concrete beam reinforcement cage (12) is placed between two layers of concrete beam XPS insulation layer (13), and the concrete beam magnesium oxychloride cement reinforced surface layer (14) is placed on the outer surface of the outer concrete beam XPS insulation layer (13). Concrete is filled between the two layers of concrete beam XPS insulation layer (13). The concrete beam XPS insulation layer (13) and the concrete beam magnesium oxychloride cement reinforced surface layer (14) constitute the formwork-free structure. The concrete beam reinforcement cage (12) contains... The galvanized square steel pipe is connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screw holes on the inner concrete beam XPS insulation layer (13) are sealed with polyurethane plugs. The outer concrete beam XPS insulation layer (13) and the concrete beam magnesium oxychloride cement reinforcement surface layer (14) are connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screws on the outer side of the concrete beam magnesium oxychloride cement reinforcement surface layer (14) are fitted with concrete beam XPS pads (15) and polyurethane plugs to eliminate the thermal bridging effect caused by the self-tapping screws.

[0046] The formwork-free concrete column (4) consists of a concrete column reinforcement cage (38), a concrete column XPS insulation layer (39), and a concrete column magnesium oxychloride cement reinforcement surface layer (40). The sides of the two concrete column XPS insulation layers (39) in the formwork-free concrete column (4) are perpendicular to each other. The concrete column reinforcement cage (38) is set on one side of the two concrete column XPS insulation layers (39). Concrete is filled inside the concrete column reinforcement cage (38) and between the concrete column reinforcement cage (38) and the concrete column XPS insulation layer (39). The concrete column magnesium oxychloride cement reinforcement surface layer (40) is set on the outer surface of the two concrete column XPS insulation layers (39). The concrete column XPS insulation layer (39) and the concrete column magnesium oxychloride cement reinforcement surface layer (40) constitute the formwork-free formwork. A galvanized square steel pipe is set in the concrete column reinforcement cage (38).

[0047] The thermal insulation and heat storage concrete floor (5) is composed of a concrete floor cushion layer (16), a thermal insulation mortar layer under the floor (17), a XPS thermal insulation layer (18), a thermal insulation and heat storage connection layer (19), a heat storage layer (20), a thermal insulation mortar layer on the floor (21), and a floor surface layer (22) arranged sequentially from bottom to top.

[0048] The thermal insulation and heat storage steel-concrete floor slab (6) is composed of an aerated concrete layer (23) under the floor slab, a corrugated steel plate (24), an aerated concrete layer (25) on the floor slab, an XPS insulation layer (26) on the floor slab, a thermal insulation and heat storage connection layer (27) on the floor slab, a heat storage layer (28) on the floor slab, and a floor surface layer (29) in sequence from bottom to top.

[0049] The insulated roof panel (7) consists of a roof XPS insulation layer (34) and a roof surface layer (35). The roof XPS insulation layer (34) is located between the two roof surface layers (35). The sides of adjacent roof XPS insulation layers (34) are connected by mortise and tenon joints.

[0050] This embodiment has the following beneficial effects:

[0051] 1. In this embodiment of the prefabricated, thermal bridge-free, large-scale insulated block rural housing system, a certain thickness of XPS insulation layer is installed at various locations and at the joints of various components, including the block walls, the formwork-free concrete beams and columns, the insulated and heat-storing concrete floor, the insulated and heat-storing reinforced concrete floor, the insulated embedded interior walls, and the indoor space. This ensures that the indoor space is completely and tightly wrapped in the insulation layer, minimizing the impact of thermal bridges in winter and significantly improving the thermal insulation and energy-saving performance of the house.

[0052] 2. In this embodiment, the prefabricated, thermally bridge-free, large-scale insulated block rural housing system incorporates heat storage layers in the exterior walls, ground, and floor slabs, significantly improving the insulation, heat storage, and thermal inertia of each component, thereby enhancing the overall thermal stability and energy efficiency of the house. Furthermore, the use of a sunroom further enhances the house's heat collection and storage capacity, improving its thermal performance and energy efficiency in multiple ways.

[0053] 3. In this embodiment, the prefabricated thermal bridge-free large-scale insulated block rural housing system uses galvanized steel pipes to replace traditional longitudinal reinforcements in the concrete beams and columns that do not require demolition of formwork, adds corrugated steel plates to the floor slabs, and uses the combination of the two ends of the steel strand (07) and the longitudinal reinforcement (038) in the block walls. All of these methods greatly improve the load-bearing capacity and disaster resistance of the house.

[0054] 4. In this implementation method, all components of the prefabricated, thermally bridge-free, large-scale insulated block rural housing system can be prefabricated in the factory, resulting in a high degree of assembly. After the main components such as block walls, beams, and columns are positioned and installed, they can be cast in one go on the construction site with the use of non-removable formwork. This improves the construction speed, reduces the requirements for construction technology and equipment, and saves on formwork usage. The non-removable formwork for beams and columns also serves as insulation and thermal break during the maintenance phase, making full use of the components.

[0055] Specific implementation method two: This implementation method differs from specific implementation method one in that: the inner wall XPS insulation layer (36) is set between the two inner wall surface layers (37); the sides of the adjacent inner wall XPS insulation layers (36) are connected by mortise and tenon joints.

[0056] Specific implementation method three: This implementation method differs from specific implementation method one or two in that: the XPS insulation layer (39) of the concrete column and the magnesium oxychloride cement reinforcement layer (40) of the concrete column form a template that can be removed and are connected to the galvanized square steel pipe in the steel cage (38) of the concrete column by self-tapping screws. The self-tapping screws on the outside of the magnesium oxychloride cement reinforcement layer (40) of the concrete column are fitted with XPS pads (41).

[0057] Specific Implementation Method Four: This implementation method differs from Specific Implementation Methods One to Three in that:

[0058] The thermal insulation mortar layer (17) under the floor and the thermal insulation mortar layer (21) on the floor are cement thermal insulation mortar; the cement thermal insulation mortar is prepared by mixing expanded polystyrene particles, cement, fly ash, lime and water in a mass ratio of 40:400:600:45:70.

[0059] The floor insulation and heat storage connection layer (19) is a polymer waterproof mortar; the polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.35.

[0060] The floor heat storage layer (20) is made of cement insulation mortar and paraffin microcapsules. The paraffin microcapsules are uniformly added to the insulation mortar, and the mass fraction of the paraffin microcapsules in the floor heat storage layer (20) is 12%.

[0061] The floor surface layer (22) is cement mortar; the cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.65.

[0062] Specific Implementation Method Five: This implementation method differs from Specific Implementation Methods One to Four in that: the bent steel bars (30) are set horizontally through the aerated concrete layer (25) on the floor slab; the bent steel bars (30) have bent ends and are set on both sides of the aerated concrete layer (25) on the floor slab; the two ends of the corrugated steel plates (24) at the joints of adjacent thermal insulation and heat storage steel-concrete floor slabs (6) are connected by connecting steel plates (32) and bolts, and multiple bent steel bars in the joints of adjacent thermal insulation and heat storage steel-concrete floor slabs (6) The bends of the reinforcing bars (30) are fitted onto the transverse reinforcing bars (33) to form a reinforcing cage; concrete is poured into the joints of adjacent thermal insulation and heat storage steel-concrete floor slabs (6) to cover the reinforcing cage and connect the adjacent thermal insulation and heat storage steel-concrete floor slabs (6); a through hole (31) is provided in the aerated concrete layer (25) on the floor slab; the through hole (31) forms an air layer to increase the thermal insulation performance of the floor slab; the gap between the lower surface of the connecting steel sheet (32) and the aerated concrete layer (23) under the floor slab is filled with foamed polyurethane insulation material.

[0063] Specific Implementation Method Six: This implementation method differs from Specific Implementation Methods One through Five in that:

[0064] The floor slab insulation and heat storage connection layer (27) is a polymer waterproof mortar; the polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.35.

[0065] The floor heat storage layer (28) is made of cement insulation mortar and paraffin microcapsules. The paraffin microcapsules are uniformly added to the insulation mortar. The mass fraction of the paraffin microcapsules in the floor heat storage layer (20) is 12%.

[0066] The floor slab surface layer (29) is cement mortar; the cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.65.

[0067] Specific Implementation Method Seven: This implementation method differs from Specific Implementation Methods One to Six in that the roof surface layer (35) is made of magnesium oxychloride cement.

[0068] Specific implementation method eight: This implementation method differs from specific implementation methods one to seven in that: a sunroom (8) is set on the outside of the block wall (1) in the top-floor residential unit, and a load-bearing platform is set at the bottom of the sunroom (8); a sunroom (8) is set on the outside of the block wall (1) in the middle-floor residential unit, and a load-bearing platform is set at the bottom of the sunroom (8), and the load-bearing platform is fixedly connected to the formwork-free concrete beam (3).

[0069] Specific implementation method nine: This implementation method differs from specific implementation methods one to eight in that the middle block (10), upper block (9) and lower block (11) are all composed of an outer phase change thermal insulation mortar layer (01), an inner phase change thermal insulation mortar layer (02), an inner insulation layer (03) and an outer insulation layer (04).

[0070] The inner phase change thermal insulation mortar layer (02) has vertical tenons and grooves on both sides. The outer surface of the inner phase change thermal insulation mortar layer (02) has two rows of first dovetail tenons (06). Multiple first dovetail tenons (06) in each row form a dovetail tenon strip, and steel strands (07) are installed inside the dovetail tenon strip. The outer phase change thermal insulation mortar layer (01) has vertical tenons and grooves on both sides. The inner surface of the outer phase change thermal insulation mortar layer (01) has two rows of second dovetail tenons (010). Multiple second dovetail tenons (010) in each row form a dovetail tenon strip, and steel strands (07) are installed inside the dovetail tenon strip. The outer surface of the outer phase change thermal insulation mortar layer (01) has two rows of third dovetail tenons (011). Multiple third dovetail tenons (011) in each row form a dovetail tenon strip. The inner insulation layer The inner surface of (03) is provided with two horizontal first dovetail grooves (08), and the outer surface of the inner insulation layer (03) is provided with two horizontal second dovetail grooves (09); the inner surface of the outer insulation layer (04) is provided with two horizontal third dovetail grooves (012); the outer phase change insulation mortar layer (01), the inner phase change insulation mortar layer (02) and the outer insulation layer (04) have the same width, the width of the inner insulation layer (03) is smaller than that of the outer phase change insulation mortar layer (01), the two sides of the inner insulation layer (03), the outer surface of the inner phase change insulation mortar layer (02) and the inner surface of the outer phase change insulation mortar layer (01) form a joint casting cavity (039); a row of square protrusions (05) are provided on both sides of the outer surface of the inner phase change insulation mortar layer (02) and on both sides of the inner surface of the outer phase change insulation mortar layer (01);

[0071] The steel strand (07) has two circular rings at both ends, which are set on the outside of the dovetail tenon; the outer surface of the outer insulation layer (04) is coated with black paint; the first dovetail tenon (06) is set in the first dovetail groove (08), the second dovetail tenon (010) is set in the second dovetail groove (09), and the third dovetail tenon (011) is set in the third dovetail groove (012); the first dovetail groove (08), the second dovetail groove (09), and the third dovetail groove (012) are all provided with a stop bar (015), which is set in the gap between adjacent first dovetail tenons (06), the gap between adjacent second dovetail tenons (010), and the gap between adjacent third dovetail tenons (011); the inner insulation layer (03) and the outer insulation layer (04) are extruded polystyrene boards;

[0072] In the middle block (10): the upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013), the lower end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple pits symmetrical to the protrusions (013), the inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits; the upper end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple protrusions (013), the lower end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple pits symmetrical to the protrusions (013), the outer phase change thermal insulation mortar layer (01) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits;

[0073] In the upper block (9): the upper part of the inner phase change insulation mortar layer (02) is provided with a row of horizontal through holes (016) and a row of ventilation holes (017), the first ventilation holes (017) are located below the first horizontal through holes (016), the lower end face of the inner phase change insulation mortar layer (02) is provided with multiple pits, and several vertical channels (014) are provided in the inner phase change insulation mortar layer (02), the lower end of the vertical channels (014) is open and located in the inner phase change insulation mortar layer (02). At the center of the recess on the lower end face of the thermal mortar layer (02), the first top ventilation hole (017) is a blind hole. One open end of the first top ventilation hole (017) is located on the inner surface of the inner phase change thermal insulation mortar layer (02), and the other end of the first top ventilation hole (017) is connected to the upper end of the vertical channel (014) located inside the inner phase change thermal insulation mortar layer (02). A row of horizontally penetrating second top horizontal through holes (020) and a row of second top ventilation holes (021) are provided on the upper part of the outer phase change thermal insulation mortar layer (01). The second top ventilation hole (021) is located below the second top horizontal through hole (020). Multiple pits are provided on the lower end face of the outer phase change insulation mortar layer (01). Several vertical channels (014) are provided inside the outer phase change insulation mortar layer (01). The lower end of each vertical channel (014) is open and located at the center of a pit on the lower end face of the outer phase change insulation mortar layer (01). The second top ventilation hole (021) is a blind hole. One open end of the second top ventilation hole (021) is located on the outer phase change insulation mortar layer. On the outer surface of 01), the other end of the second top ventilation hole (021) is connected to the upper end of the vertical channel (014) set inside the outer phase change insulation mortar layer (01); the upper part of the inner insulation layer (03) is provided with a horizontally penetrating third top horizontal through hole (022); the upper part of the outer insulation layer (04) is provided with a row of horizontally penetrating fourth top horizontal through holes (018) and a row of fourth top ventilation holes (019), and the fourth top ventilation holes (019) are set below the fourth top horizontal through holes (018);

[0074] In the lower block (11): the lower part of the inner phase change thermal insulation mortar layer (02) is provided with a row of horizontally penetrating first bottom horizontal through holes (026) and a row of first bottom ventilation holes (027). The first bottom horizontal through holes (026) are located below the first bottom ventilation holes (027). The upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013). The inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014). The upper end of the vertical channels (014) is open and located at the center of the protrusions (013) on the upper end face of the inner phase change thermal insulation mortar layer (02). The first bottom ventilation holes (026) are located below the first bottom ventilation holes (027). The vent (027) is a blind hole. One open end of the first bottom vent (027) is located on the outer surface of the inner phase change insulation mortar layer (02), and the other end of the first bottom vent (027) is connected to the lower end of the vertical channel (014) located inside the inner phase change insulation mortar layer (02). The lower part of the outer phase change insulation mortar layer (01) is provided with a row of horizontally penetrating second bottom through holes (028) and a row of second bottom vents (029). The second bottom horizontal through holes (028) are located below the second bottom vents (029). The upper surface of the outer phase change insulation mortar layer (01) is provided with multiple protrusions. Block (013), the outer phase change thermal insulation mortar layer (01) is provided with several vertical channels (014), the upper end of the vertical channels (014) is open and located at the center of the protrusion (013) on the upper end face of the outer phase change thermal insulation mortar layer (01), the second bottom ventilation hole (029) is a blind hole, one end of the opening of the second bottom ventilation hole (029) is located on the inner surface of the outer phase change thermal insulation mortar layer (01), and the other end of the second bottom ventilation hole (029) is connected to the lower end of the vertical channel (014) located inside the outer phase change thermal insulation mortar layer (01); the lower part of the inner insulation layer (03) is provided with a horizontally penetrating first The outer insulation layer (04) has three horizontal through holes (030) and a third horizontally penetrating vent hole (031); a fourth horizontally penetrating through hole (034) is provided at the bottom of the outer insulation layer (04); a pipe plug (025) is provided inside the first horizontal through hole (026); a pipe plug (025) is provided outside the fourth horizontal through hole (034); a pipe plug (025) is provided outside the fourth horizontal through hole (018) and outside the fourth vent hole (019); a pipe plug (025) is provided inside the first horizontal through hole (016) and inside the first vent hole (017);

[0075] The upper block (9) is provided with a first ventilation pipe (023) and a second ventilation pipe (024). The first ventilation pipe (023) is located in the first top horizontal through hole (016), the third top horizontal through hole (022), the second top horizontal through hole (020), and the fourth top horizontal through hole (018). One end of the second ventilation pipe (024) is located in the second top ventilation hole (021), and the other end of the second ventilation pipe (024) is located in the fourth top ventilation hole (019). The lower block Block (11) is provided with a third ventilation pipe (032) and a fourth ventilation pipe (033). The third ventilation pipe (032) is installed in the first bottom horizontal through hole (026), the third bottom horizontal through hole (030), the second bottom horizontal through hole (028), and the fourth bottom horizontal through hole (034). One end of the fourth ventilation pipe (033) passes through the third bottom ventilation hole (031) and is installed in the first bottom ventilation hole (027) at the bottom of the inner phase change thermal insulation mortar layer (02). (033) The other end is set in the second bottom ventilation hole (029) of the outer phase change insulation mortar layer (01); the inner insulation layer (03) in the middle block (10), the upper block (9) and the lower block (11) are provided with vertical fifth ventilation pipes (035) on both sides, the fifth ventilation pipes (035) are porous pipes, and the inner insulation layer (03) in the lower block (11) is provided with horizontal sixth ventilation pipes (036) on both sides, the middle of the sixth ventilation pipe (036) The lower end of the fifth ventilation pipe (035) is connected to the sixth ventilation pipe (036). One end of the sixth ventilation pipe (036) is set in the first bottom ventilation hole (027), and the other end of the sixth ventilation pipe (036) is set in the second bottom ventilation hole (029). The upper block (9) is provided with transverse seventh ventilation pipes (037) on both sides. One end of the seventh ventilation pipe (037) is connected to the upper end of the fifth ventilation pipe (035), and the other end of the seventh ventilation pipe (037) is set in the fourth top ventilation hole (019).

[0076] The middle block (10), upper block (9), and lower block (11) are used to construct a block wall. A row of upper blocks (9) is placed at the top of the block wall, and a row of lower blocks (11) is placed at the bottom. Multiple rows of middle blocks (10) are placed between the upper blocks (9) and the lower blocks (11). Phase change concrete is poured into the joint pouring cavity (039). The end rings of the steel strands (07) in adjacent upper blocks (9) overlap, and longitudinal reinforcing bars (038) are provided inside the rings. The end rings of the steel strands (07) in adjacent upper blocks (9) overlap, and longitudinal reinforcing bars (038) are provided inside the rings. The end rings of the steel strands (07) in adjacent lower blocks (11) overlap, and longitudinal reinforcing bars (038) are provided inside the rings. Reinforcing bars (038); The vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the upper block (9) on the same vertical straight line, the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the middle block (10) and the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the lower block (11) are connected; The vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the upper block (9) on the same vertical straight line, the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the middle block (10) and the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the lower block (11) are connected; Washers are provided between vertically adjacent vertical channels (014).

[0077] Specific Implementation Method 10: This implementation method differs from Specific Implementation Methods 1 to 9 in that: the thickness of the inner insulation layer (03) is not less than 200mm, the thickness of the outer insulation layer (04) is not less than 50mm; the wall thickness of the galvanized square steel pipe is not less than 1.0mm; the thickness of the roof XPS insulation layer (34) is not less than 150mm; and the thickness of the floor XPS insulation layer (26) is not less than 50mm.

[0078] Example 1:

[0079] Combination Figures 1 to 16 This embodiment describes a prefabricated, thermal bridge-free, large-scale insulated block rural housing system, which is a multi-story residential building, including a top-floor residential unit, multiple mid-floor residential units, and a bottom-floor residential unit.

[0080] The ground floor residential unit consists of a block wall (1), an insulated embedded interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing concrete floor (5), an insulated and heat-storing reinforced concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing concrete floor (5), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), the block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing concrete floor (5), and the insulated and heat-storing reinforced concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The insulated embedded interior wall (2) is located inside the ground floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the ground floor residential unit.

[0081] Multiple mid-rise residential units are located between the top-floor and bottom-floor residential units. Each mid-rise residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing steel-concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6), and the insulated and heat-storing steel-concrete floor slab (6). The insulated inlaid interior wall (2) is located inside the mid-rise residential unit. The sunroom (8) is located on the outside of the block wall (1) of the mid-rise residential unit.

[0082] The top-floor residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated roof panel (7), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated roof panel (7) is located on the upper surface of the formwork-free concrete beam (3). The insulated inlaid interior wall (2) is located inside the top-floor residential unit. The sunroom (8) is located on the outside of the block wall (1) of the top-floor residential unit.

[0083] The block wall (1) is composed of upper blocks (9), middle blocks (10) and lower blocks (11);

[0084] The insulated inlaid inner wall (2) is composed of an inner wall XPS insulation layer (36) and an inner wall surface layer (37); the inner wall XPS insulation layer (36) is set between two inner wall surface layers (37); the sides of adjacent inner wall XPS insulation layers (36) are connected by mortise and tenon joints.

[0085] The formwork-free concrete beam (3) consists of a concrete beam reinforcement cage (12), a concrete beam XPS insulation layer (13), and a concrete beam magnesium oxychloride cement reinforced surface layer (14). The concrete beam reinforcement cage (12) is placed between two layers of concrete beam XPS insulation layer (13), and the concrete beam magnesium oxychloride cement reinforced surface layer (14) is placed on the outer surface of the outer concrete beam XPS insulation layer (13). The space between the two layers of concrete beam XPS insulation layer (13) is filled with concrete. The concrete beam XPS insulation layer (13) and the concrete beam magnesium oxychloride cement reinforced surface layer (14) constitute the formwork-free structure. Galvanized square steel pipes are installed in the concrete beam reinforcement cage (12). The inner XPS insulation layer (13) of the concrete beam is connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws, and the self-tapping screw holes on the inner XPS insulation layer (13) of the concrete beam are sealed by polyurethane plugs; the outer XPS insulation layer (13) of the concrete beam and the magnesium oxychloride cement reinforced surface layer (14) of the concrete beam are connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws, and the self-tapping screws on the outer side of the magnesium oxychloride cement reinforced surface layer (14) of the concrete beam are fitted with XPS spacers (15); the XPS spacers (15) of the concrete beam and the polyurethane plugs are used to eliminate the thermal bridging effect caused by the self-tapping screws.

[0086] The formwork-free concrete column (4) consists of a concrete column reinforcement cage (38), a concrete column XPS insulation layer (39), and a concrete column magnesium oxychloride cement reinforcement surface layer (40). The sides of the two concrete column XPS insulation layers (39) in the formwork-free concrete column (4) are perpendicular to each other. The concrete column reinforcement cage (38) is set on one side of the two concrete column XPS insulation layers (39). Concrete is filled inside the concrete column reinforcement cage (38) and between the concrete column reinforcement cage (38) and the concrete column XPS insulation layer (39). The concrete column magnesium oxychloride cement reinforcement surface layer (40) is set on the outer surface of the two concrete column XPS insulation layers (39). The concrete column XPS insulation layer (39) and the concrete column magnesium oxychloride cement reinforcement surface layer (40) constitute a formwork-free template and are connected to the galvanized square steel pipe in the concrete column reinforcement cage (38) by self-tapping screws. Concrete column XPS pads (41) are fitted on the self-tapping screws on the outside of the concrete column magnesium oxychloride cement reinforcement surface layer (40).

[0087] The thermal insulation and heat storage concrete floor (5) is composed of a concrete floor cushion layer (16), a floor under-floor thermal insulation mortar layer (17), a floor XPS thermal insulation layer (18), a floor thermal insulation and heat storage connecting layer (19), a floor heat storage layer (20), a floor under-floor thermal insulation mortar layer (21), and a floor surface layer (22) arranged sequentially from bottom to top. The floor under-floor thermal insulation mortar layer (17) and the floor under-floor thermal insulation mortar layer (21) are made of cement thermal insulation mortar. The cement thermal insulation mortar is prepared by mixing expanded polystyrene particles, cement, fly ash, lime, and water in a mass ratio of 40:400:600:45:70. The floor insulation and heat storage connecting layer (19) is a polymer waterproof mortar. The polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.35. The floor heat storage layer (20) is prepared by cement insulation mortar and paraffin microcapsules. The paraffin microcapsules are uniformly added to the insulation mortar. The mass fraction of paraffin microcapsules in the floor heat storage layer (20) is 12%. The floor surface layer (22) is cement mortar. The cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.65.

[0088] The thermal insulation and heat storage steel-concrete floor slab (6) is composed of an aerated concrete layer (23) under the floor slab, a corrugated steel plate (24), an aerated concrete layer (25) on the floor slab, an XPS insulation layer (26), a thermal insulation and heat storage connection layer (27), a heat storage layer (28), and a floor surface layer (29) arranged sequentially from bottom to top; the bent steel bars (30) are set horizontally through the aerated concrete layer (25) on the floor slab; the two ends of the bent steel bars (30) are bent The corrugated steel plate (24) at the joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) is connected at both ends by connecting steel plates (32) and bolts. The bends of multiple bent steel bars (30) in the joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) are sleeved on the transverse steel bars (33) to form a steel cage. The joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) is filled with concrete to cover the steel cage and connected to the adjacent steel cage. The adjacent heat-insulating steel-concrete floor slab (6); the aerated concrete layer (25) on the floor slab has through holes (31); the through holes (31) form an air layer to increase the heat insulation performance of the floor slab; the pores between the lower surface of the connecting steel sheet (32) and the aerated concrete layer (23) under the floor slab are filled with foamed polyurethane insulation material; the heat-insulating connection layer (27) of the floor slab is polymer waterproof mortar; the polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.35; the heat storage layer (28) of the floor slab is prepared by cement insulation mortar and paraffin microcapsules, the paraffin microcapsules are uniformly added to the insulation mortar, and the mass fraction of paraffin microcapsules in the floor heat storage layer (20) is 12%; the floor surface layer (29) is cement mortar; the cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.65.

[0089] The insulated roof panel (7) is composed of a roof XPS insulation layer (34) and a roof surface layer (35). The roof XPS insulation layer (34) is set between two roof surface layers (35). The sides of adjacent roof XPS insulation layers (34) are connected by mortise and tenon joints. The roof surface layer (35) is composed of magnesium oxychloride cement.

[0090] The middle block (10), upper block (9) and lower block (11) are all composed of an outer phase change thermal insulation mortar layer (01), an inner phase change thermal insulation mortar layer (02), an inner insulation layer (03) and an outer insulation layer (04);

[0091] The inner phase change thermal insulation mortar layer (02) has vertical tenons and grooves on both sides. The outer surface of the inner phase change thermal insulation mortar layer (02) has two rows of first dovetail tenons (06). Multiple first dovetail tenons (06) in each row form a dovetail tenon strip, with steel strands (07) inside. The outer phase change thermal insulation mortar layer (01) has vertical tenons and grooves on both sides. 1) The inner surface is provided with two rows of second dovetail tenons (010), and multiple second dovetail tenons (010) in each row form a dovetail tenon strip. A steel strand (07) is provided inside. The outer surface of the outer phase change insulation mortar layer (01) is provided with two rows of third dovetail tenons (011), and multiple third dovetail tenons (011) in each row form a dovetail tenon strip. The inner surface of the inner insulation layer (03) is provided with two horizontal first dovetail grooves (011). 8) The outer surface of the inner insulation layer (03) is provided with two horizontal second dovetail grooves (09); the inner surface of the outer insulation layer (04) is provided with two horizontal third dovetail grooves (012); the outer phase change insulation mortar layer (01), the inner phase change insulation mortar layer (02) and the outer insulation layer (04) have the same width, the width of the inner insulation layer (03) is smaller than that of the outer phase change insulation mortar layer (01), and the two sides of the inner insulation layer (03) are... The outer surface of the inner phase change insulation mortar layer (02) and the inner surface of the outer phase change insulation mortar layer (01) form a joint pouring cavity (039); a row of square protrusions (05) are respectively provided on both sides of the outer surface of the inner phase change insulation mortar layer (02) and on both sides of the inner surface of the outer phase change insulation mortar layer (01); when phase change concrete is poured into the joint of adjacent blocks, the square protrusions (05) can increase the connection strength between the blocks and the phase change concrete;

[0092] The steel strand (07) has two circular rings at both ends, which are set on the outside of the dovetail tenon. The steel strand (07) provides the bending and torsional bearing capacity of the block wall. When the block is built, the circular rings on the left and right sides are overlapped and longitudinal steel bars are inserted. Then, phase change concrete is poured, which makes the masonry wall construction simple and reduces the amount of wet work compared with ordinary masonry walls while having good strength. The outer surface of the outer insulation layer (04) is coated with black paint; the first dovetail tenon (06) is set in the first dovetail groove (08), the second dovetail tenon (010) is set in the second dovetail groove (09), and the third dovetail tenon (011) is set in the third dovetail groove (012); a baffle (015) is provided in the first dovetail groove (08), the second dovetail groove (09), and the third dovetail groove (012), and the baffle (015) is set in the gap between adjacent first dovetail tenons (06), the gap between adjacent second dovetail tenons (010), and the gap between adjacent third dovetail tenons (011); the inner insulation layer (03) and the outer insulation layer (04) are extruded polystyrene boards;

[0093] In the middle block (10): the upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013), the lower end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple pits symmetrical to the protrusions (013), the inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits; the upper end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple protrusions (013), the lower end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple pits symmetrical to the protrusions (013), the outer phase change thermal insulation mortar layer (01) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits;

[0094] In the upper block (9): the upper part of the inner phase change insulation mortar layer (02) is provided with a row of horizontal through holes (016) and a row of ventilation holes (017), the first ventilation holes (017) are located below the first horizontal through holes (016), the lower end face of the inner phase change insulation mortar layer (02) is provided with multiple pits, and several vertical channels (014) are provided in the inner phase change insulation mortar layer (02), the lower end of the vertical channels (014) is open and located in the inner phase change insulation mortar layer (02). At the center of the recess on the lower end face of the thermal mortar layer (02), the first top ventilation hole (017) is a blind hole. One open end of the first top ventilation hole (017) is located on the inner surface of the inner phase change thermal insulation mortar layer (02), and the other end of the first top ventilation hole (017) is connected to the upper end of the vertical channel (014) located inside the inner phase change thermal insulation mortar layer (02). A row of horizontally penetrating second top horizontal through holes (020) and a row of second top ventilation holes (021) are provided on the upper part of the outer phase change thermal insulation mortar layer (01). The second top ventilation hole (021) is located below the second top horizontal through hole (020). Multiple pits are provided on the lower end face of the outer phase change insulation mortar layer (01). Several vertical channels (014) are provided inside the outer phase change insulation mortar layer (01). The lower end of each vertical channel (014) is open and located at the center of a pit on the lower end face of the outer phase change insulation mortar layer (01). The second top ventilation hole (021) is a blind hole. One open end of the second top ventilation hole (021) is located on the outer phase change insulation mortar layer. On the outer surface of 01), the other end of the second top ventilation hole (021) is connected to the upper end of the vertical channel (014) set inside the outer phase change insulation mortar layer (01); the upper part of the inner insulation layer (03) is provided with a horizontally penetrating third top horizontal through hole (022); the upper part of the outer insulation layer (04) is provided with a row of horizontally penetrating fourth top horizontal through holes (018) and a row of fourth top ventilation holes (019), and the fourth top ventilation holes (019) are set below the fourth top horizontal through holes (018);

[0095] In the lower block (11): the lower part of the inner phase change thermal insulation mortar layer (02) is provided with a row of horizontally penetrating first bottom horizontal through holes (026) and a row of first bottom ventilation holes (027). The first bottom horizontal through holes (026) are located below the first bottom ventilation holes (027). The upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013). The inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014). The upper end of the vertical channels (014) is open and located at the center of the protrusions (013) on the upper end face of the inner phase change thermal insulation mortar layer (02). The first bottom ventilation holes (026) are located below the first bottom ventilation holes (027). The vent (027) is a blind hole. One open end of the first bottom vent (027) is located on the outer surface of the inner phase change insulation mortar layer (02), and the other end of the first bottom vent (027) is connected to the lower end of the vertical channel (014) located inside the inner phase change insulation mortar layer (02). The lower part of the outer phase change insulation mortar layer (01) is provided with a row of horizontally penetrating second bottom through holes (028) and a row of second bottom vents (029). The second bottom horizontal through holes (028) are located below the second bottom vents (029). The upper surface of the outer phase change insulation mortar layer (01) is provided with multiple protrusions. Block (013), the outer phase change thermal insulation mortar layer (01) is provided with several vertical channels (014), the upper end of the vertical channels (014) is open and located at the center of the protrusion (013) on the upper end face of the outer phase change thermal insulation mortar layer (01), the second bottom ventilation hole (029) is a blind hole, one end of the opening of the second bottom ventilation hole (029) is located on the inner surface of the outer phase change thermal insulation mortar layer (01), and the other end of the second bottom ventilation hole (029) is connected to the lower end of the vertical channel (014) located inside the outer phase change thermal insulation mortar layer (01); the lower part of the inner insulation layer (03) is provided with a horizontally penetrating first The outer insulation layer (04) has three horizontal through holes (030) and a third horizontally penetrating vent hole (031); a fourth horizontally penetrating through hole (034) is provided at the bottom of the outer insulation layer (04); a pipe plug (025) is provided inside the first horizontal through hole (026); a pipe plug (025) is provided outside the fourth horizontal through hole (034); a pipe plug (025) is provided outside the fourth horizontal through hole (018) and outside the fourth vent hole (019); a pipe plug (025) is provided inside the first horizontal through hole (016) and inside the first vent hole (017);

[0096] The upper block (9) is provided with a first ventilation pipe (023) and a second ventilation pipe (024). The first ventilation pipe (023) is located in the first top horizontal through hole (016), the third top horizontal through hole (022), the second top horizontal through hole (020), and the fourth top horizontal through hole (018). One end of the second ventilation pipe (024) is located in the second top ventilation hole (021), and the other end of the second ventilation pipe (024) is located in the fourth top ventilation hole (019). The lower block Block (11) is provided with a third ventilation pipe (032) and a fourth ventilation pipe (033). The third ventilation pipe (032) is installed in the first bottom horizontal through hole (026), the third bottom horizontal through hole (030), the second bottom horizontal through hole (028), and the fourth bottom horizontal through hole (034). One end of the fourth ventilation pipe (033) passes through the third bottom ventilation hole (031) and is installed in the first bottom ventilation hole (027) at the bottom of the inner phase change thermal insulation mortar layer (02). (033) The other end is set in the second bottom ventilation hole (029) of the outer phase change insulation mortar layer (01); the inner insulation layer (03) in the middle block (10), the upper block (9) and the lower block (11) are provided with vertical fifth ventilation pipes (035) on both sides, the fifth ventilation pipes (035) are porous pipes, and the inner insulation layer (03) in the lower block (11) is provided with horizontal sixth ventilation pipes (036) on both sides, the middle of the sixth ventilation pipe (036) The lower end of the fifth ventilation pipe (035) is connected to the sixth ventilation pipe (036). One end of the sixth ventilation pipe (036) is set in the first bottom ventilation hole (027), and the other end of the sixth ventilation pipe (036) is set in the second bottom ventilation hole (029). The upper block (9) is provided with transverse seventh ventilation pipes (037) on both sides. One end of the seventh ventilation pipe (037) is connected to the upper end of the fifth ventilation pipe (035), and the other end of the seventh ventilation pipe (037) is set in the fourth top ventilation hole (019).

[0097] The middle block (10), upper block (9), and lower block (11) are used to construct a block wall. A row of upper blocks (9) is placed at the top of the block wall, and a row of lower blocks (11) is placed at the bottom. Multiple rows of middle blocks (10) are placed between the upper blocks (9) and the lower blocks (11). Phase-change concrete is poured into the joint casting cavity (039). The end rings of the steel strands (07) in adjacent upper blocks (9) overlap, and longitudinal reinforcing bars (038) are placed inside the rings. The end rings of the steel strands (07) in adjacent upper blocks (9) overlap, and longitudinal reinforcing bars (038) are placed inside the rings. The end rings of the steel strands (07) in adjacent lower blocks (11) overlap, and longitudinal reinforcing bars (038) are placed inside the rings. The vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the upper block (9), the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the middle block (10), and the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the lower block (11) are connected on the same vertical line; the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the upper block (9), the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the middle block (10), and the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the lower block (11) are connected on the same vertical line; gaskets are provided between vertically adjacent vertical channels (014); the gaskets ensure good airtightness of the channels when the blocks are connected.

[0098] A sunroom (8) is installed on the outside of the block wall (1) in the top-floor residential unit, and a load-bearing platform is installed at the bottom of the sunroom (8); a sunroom (8) is installed on the outside of the block wall (1) in the middle-floor residential unit, and a load-bearing platform is installed at the bottom of the sunroom (8). The load-bearing platform is fixedly connected to the formwork-free concrete beam (3).

[0099] The thickness of the inner insulation layer (03) is not less than 200mm, and the thickness of the outer insulation layer (04) is not less than 50mm; the wall thickness of the galvanized square steel pipe is not less than 1.0mm; the thickness of the roof XPS insulation layer (34) is not less than 150mm; and the thickness of the floor XPS insulation layer (26) is not less than 50mm.

[0100] The method for heat storage and exchange using masonry blocks is carried out according to the following steps:

[0101] In summer, the first top horizontal through-hole (016), the fourth top horizontal through-hole (018), and the first ventilation pipe (023) are opened, while the first bottom horizontal through-hole (026), the fourth bottom horizontal through-hole (034), and the third ventilation pipe (032) are opened. The first top ventilation hole (017) and the fourth top ventilation hole (019) are closed using a pipe plug (025). According to the chimney effect principle, when the wind speed on the outdoor side of the upper block (9) is high, the pressure at the outer port of the fourth top horizontal through-hole (018) decreases. At this time, the indoor air pressure is greater than the outdoor air pressure. According to the thermal pressure ventilation principle, the hot air at the top of the room passes through the first top horizontal through-hole (016) and the fourth top horizontal through-hole (023). The hot air flows out through the through hole (018) and the first ventilation pipe (023) into the outside. At this time, due to the outflow of hot air from the room, the air pressure at the top of the room decreases. According to the principle of thermal pressure ventilation, the hot air in the lower part of the room flows to the top of the room and flows into the outside through the first top horizontal through hole (016), the fourth top horizontal through hole (018) and the first ventilation pipe (023). At this time, due to the upward movement of hot air from the room, the air pressure at the bottom of the room decreases. The outdoor air pressure is greater than the indoor air pressure at the bottom of the room. The cool air from the outside will flow into the room through the first bottom horizontal through hole (026), the fourth bottom horizontal through hole (034) and the third ventilation pipe (032), thus realizing the circulation of indoor and outdoor air in summer.

[0102] During the winter daytime, a sunroom is set up on the outside of the block wall of the ground floor residential unit. The first top horizontal through hole (016) and the fourth top horizontal through hole (018) are closed by pipe plugs (025), while the first bottom horizontal through hole (026), the fourth bottom horizontal through hole (034), the first top ventilation hole (017), and the fourth top ventilation hole (019) are left open. At this time, the outdoor sunlight shines on the sunroom, and the temperature of the gas inside the sunroom is heated. The rising hot air increases the gas pressure at the top of the sunroom. According to the principle of thermal pressure ventilation, the hot air inside the sunroom enters the fourth top ventilation hole (019) of the upper block (9) and passes through the second ventilation pipe (024) and the upper block in sequence. (9) Vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the middle block (10), vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the middle block (10), vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the lower block (11), fourth ventilation pipe (033), first bottom ventilation hole (027), vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the lower block (11), vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the middle block (10), vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the upper block (9), first The hot air in the sunroom enters the room through the top ventilation hole (017), and simultaneously enters the room through the fourth top ventilation hole (019) of the upper block (9), and then passes through the seventh ventilation pipe (037), the fifth ventilation pipe (035), the sixth ventilation pipe (036), the first bottom ventilation hole (027), the vertical channel (014) of the inner phase change insulation mortar layer (02) in the lower block (11), the vertical channel (014) of the inner phase change insulation mortar layer (02) in the middle block (10), the vertical channel (014) of the inner phase change insulation mortar layer (02) in the upper block (9), and the first top ventilation hole (017), thus realizing the circulation of hot air within the blocks. The hot gas exchanges heat with the phase change concrete in the outer phase change insulation mortar layer (01), the inner phase change insulation mortar layer (02), and the joint pouring cavity (039), storing the heat in the phase change concrete in the outer phase change insulation mortar layer (01), the inner phase change insulation mortar layer (02), and the joint pouring cavity (039). After the hot gas enters the room, the air pressure in the upper space of the room increases, and the cold air in the room flows to the bottom of the room, causing the air pressure at the bottom of the room to increase. The cold air in the room flows into the outdoor sunroom through the first bottom horizontal through hole (026), the fourth bottom horizontal through hole (034), and the third ventilation pipe (032). After being heated by the sun, it rises again and circulates into the block wall.During winter nights, the first top horizontal through-hole (016), the fourth top horizontal through-hole (018), the first bottom horizontal through-hole (026), the fourth bottom horizontal through-hole (034), the first top ventilation hole (017), and the fourth top ventilation hole (019) are sealed using pipe plugs (025). The heat stored in the phase change insulation mortar layer (01) on the outside, the phase change insulation mortar layer (02) on the inside, and the joint pouring cavity (039) in the phase change concrete is released into the room, thus increasing the indoor temperature.

[0103] In this embodiment of the prefabricated, thermally bridge-free, large-scale insulated block rural housing system, a certain thickness of XPS insulation layer is installed at various locations, including the block walls, formwork-free concrete beams and columns, insulated and heat-storage concrete floors, insulated and heat-storage reinforced concrete floors, insulated embedded interior walls, and the connection points of various components. This ensures that the indoor space is completely and tightly encased within the insulation layer, minimizing the impact of thermal bridging in winter and significantly improving the thermal insulation and energy-saving performance of the house. This prefabricated, thermally bridge-free, large-scale insulated block rural housing system also incorporates heat storage layers in the exterior walls, ground, and floors, greatly enhancing the insulation, heat storage, and thermal inertia of each component, thus improving the overall thermal stability and energy efficiency of the house. Furthermore, the use of a sunroom further enhances the house's heat collection and storage capacity, improving its thermal performance and energy efficiency in multiple ways. In this embodiment, the prefabricated, thermally bridge-free, large-scale insulated block rural housing system uses galvanized steel pipes instead of traditional longitudinal reinforcement in the formwork-free concrete beams and columns, adds corrugated steel plates to the floor slabs, and utilizes the combination of steel strands (07) with longitudinal reinforcement (038) at both ends in the block walls. These methods significantly improve the load-bearing capacity and disaster resistance of the houses. All components of this prefabricated, thermally bridge-free, large-scale insulated block rural housing system can be prefabricated in the factory, resulting in a high degree of assembly. After the main components such as block walls, beams, and columns are positioned and installed, they can be cast in one go on the construction site with the use of formwork-free installation. This increases the construction speed while reducing the requirements for construction technology and equipment, and saves on formwork usage. The formwork-free installation of beams and columns also serves as insulation and thermal break during the maintenance phase, achieving full utilization of the components.

Claims

1. A prefabricated housing system composed of insulated block composite walls, characterized in that: The prefabricated, thermal bridge-free, large-scale insulated block rural housing system is a multi-story residential building, including a top-floor residential unit, multiple mid-floor residential units, and a ground-floor residential unit. The ground floor residential unit consists of a block wall (1), an insulated embedded interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing concrete floor (5), an insulated and heat-storing reinforced concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing concrete floor (5), the formwork-free concrete beam (3) is located on the upper end of the formwork-free concrete column (4), the block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing concrete floor (5), and the insulated and heat-storing reinforced concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The insulated inlaid interior wall (2) is set inside the ground floor residential unit; the sunroom (8) is set outside the block wall (1) of the ground floor residential unit; Multiple mid-rise residential units are located between the top-floor and bottom-floor residential units. Each mid-rise residential unit consists of a block wall (1), an insulated embedded interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated and heat-storing steel-concrete floor slab (6), and a sunroom (8). The formwork-free concrete column (4) is located on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is located on the upper end face of the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6) is located on the upper surface of the formwork-free concrete beam (3). The block wall (1) is located between the formwork-free concrete beam (3), the formwork-free concrete column (4), and the insulated and heat-storing steel-concrete floor slab (6), and the insulated and heat-storing steel-concrete floor slab (6). The insulated embedded interior wall (2) is located inside the mid-rise residential unit. The sunroom (8) is located on the outside of the block wall (1) of the mid-rise residential unit. The top-floor residential unit consists of a block wall (1), an insulated inlaid interior wall (2), a formwork-free concrete beam (3), a formwork-free concrete column (4), an insulated roof panel (7), and a sunroom (8). The formwork-free concrete column (4) is set on the upper surface of the insulated and heat-storing steel-concrete floor slab (6), the formwork-free concrete beam (3) is set on the upper end of the formwork-free concrete column (4), and the insulated roof panel (7) is set on the upper surface of the formwork-free concrete beam (3). The insulated inlaid interior wall (2) is set inside the top-floor residential unit; the sunroom (8) is set outside the block wall (1) of the top-floor residential unit; The block wall (1) is composed of upper blocks (9), middle blocks (10) and lower blocks (11); The insulated embedded inner wall (2) is composed of an inner wall XPS insulation layer (36) and an inner wall surface layer (37); The formwork-free concrete beam (3) consists of a concrete beam reinforcement cage (12), a concrete beam XPS insulation layer (13), and a concrete beam magnesium oxychloride cement reinforced surface layer (14). The concrete beam reinforcement cage (12) is placed between two layers of concrete beam XPS insulation layer (13), and the concrete beam magnesium oxychloride cement reinforced surface layer (14) is placed on the outer surface of the outer concrete beam XPS insulation layer (13). Concrete is filled between the two layers of concrete beam XPS insulation layer (13). The concrete beam XPS insulation layer (13) and the concrete beam magnesium oxychloride cement reinforced surface layer (14) constitute the formwork-free structure. A galvanized square steel pipe is installed in the concrete beam reinforcement cage (12). The XPS insulation layer (13) of the concrete beam on the side is connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screw holes on the inner XPS insulation layer (13) of the concrete beam are sealed by polyurethane plugs. The XPS insulation layer (13) of the concrete beam on the outside and the magnesium oxychloride reinforced surface layer (14) of the concrete beam are connected to the galvanized square steel pipe in the concrete beam reinforcement cage (12) by self-tapping screws. The self-tapping screws on the outside of the magnesium oxychloride reinforced surface layer (14) of the concrete beam are fitted with XPS spacers (15). The XPS spacers (15) and polyurethane plugs are used to eliminate the thermal bridging effect caused by the self-tapping screws. The formwork-free concrete column (4) consists of a concrete column reinforcement cage (38), a concrete column XPS insulation layer (39), and a concrete column magnesium oxychloride cement reinforcement surface layer (40). The sides of the two concrete column XPS insulation layers (39) in the formwork-free concrete column (4) are perpendicular to each other. The concrete column reinforcement cage (38) is set on one side of the two concrete column XPS insulation layers (39). Concrete is filled inside the concrete column reinforcement cage (38) and between the concrete column reinforcement cage (38) and the concrete column XPS insulation layer (39). The concrete column magnesium oxychloride cement reinforcement surface layer (40) is set on the outer surface of the two concrete column XPS insulation layers (39). The concrete column XPS insulation layer (39) and the concrete column magnesium oxychloride cement reinforcement surface layer (40) constitute the formwork-free formwork. A galvanized square steel pipe is set in the concrete column reinforcement cage (38). The thermal insulation and heat storage concrete floor (5) is composed of a floor concrete pad layer (16), a floor under insulation mortar layer (17), a floor XPS insulation layer (18), a floor thermal insulation and heat storage connection layer (19), a floor heat storage layer (20), a floor insulation mortar layer (21), and a floor surface layer (22) arranged sequentially from bottom to top. The thermal insulation and heat storage steel-concrete floor slab (6) is composed of an aerated concrete layer (23) under the floor slab, a corrugated steel plate (24), an aerated concrete layer (25) on the floor slab, an XPS insulation layer (26) on the floor slab, a thermal insulation and heat storage connection layer (27) on the floor slab, a heat storage layer (28) on the floor slab, and a floor surface layer (29) in sequence from bottom to top. The insulated roof panel (7) is composed of a roof XPS insulation layer (34) and a roof surface layer (35). The roof XPS insulation layer (34) is set between the two roof surface layers (35); the sides of the adjacent roof XPS insulation layers (34) are connected by mortise and tenon joints.

2. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The XPS insulation layer (36) of the interior wall is set between the two interior wall surfaces (37); the sides of the adjacent XPS insulation layers (36) of the interior wall are connected by mortise and tenon joints.

3. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The XPS insulation layer (39) and the magnesium oxychloride cement reinforcement layer (40) of the concrete column form a template that can be removed and are connected to the galvanized square steel pipe in the steel cage (38) of the concrete column by self-tapping screws. The self-tapping screws on the outside of the magnesium oxychloride cement reinforcement layer (40) of the concrete column are fitted with XPS pads (41).

4. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The thermal insulation mortar layer (17) under the floor and the thermal insulation mortar layer (21) on the floor are cement thermal insulation mortar; The cement insulation mortar is prepared by mixing expanded polystyrene particles, cement, fly ash, lime and water in a mass ratio of 40:400:600:45:

70. The floor insulation and heat storage connection layer (19) is a polymer waterproof mortar; the polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.

35. The floor heat storage layer (20) is made of cement insulation mortar and paraffin microcapsules. The paraffin microcapsules are uniformly added to the insulation mortar, and the mass fraction of the paraffin microcapsules in the floor heat storage layer (20) is 12%. The floor surface layer (22) is cement mortar; the cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.

65.

5. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The bent steel bars (30) are set horizontally through the aerated concrete layer (25) on the floor slab; the bent steel bars (30) are bent at both ends and set on both sides of the aerated concrete layer (25) on the floor slab; the corrugated steel plate (24) at the joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) is connected at both ends by connecting steel plates (32) and bolts; the bends of multiple bent steel bars (30) in the joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) are sleeved on the transverse steel bars (33) to form a steel cage; concrete is poured in the joint of the adjacent thermal insulation and heat storage steel concrete floor slab (6) to cover the steel cage and connect the adjacent thermal insulation and heat storage steel concrete floor slab (6); a through hole (31) is set in the aerated concrete layer (25) on the floor slab; the through hole (31) forms an air layer to increase the thermal insulation performance of the floor slab; the gap between the lower surface of the connecting steel plate (32) and the aerated concrete layer (23) under the floor slab is filled with foamed polyurethane insulation material.

6. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The floor slab insulation and heat storage connection layer (27) is a polymer waterproof mortar; the polymer waterproof mortar is prepared by mixing cement, sand, perlite, waterproofing agent and water in a mass ratio of 1:2:0.5:1.3:0.35; The floor heat storage layer (28) is made of cement insulation mortar and paraffin microcapsules. The paraffin microcapsules are uniformly added to the insulation mortar. The mass fraction of paraffin microcapsules in the floor heat storage layer (20) is 12%. The floor slab surface layer (29) is cement mortar; the cement mortar is prepared by mixing cement, medium sand and water in a mass ratio of 1:3:0.

65.

7. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The roof surface layer (35) is made of magnesium oxychloride cement.

8. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: A sunroom (8) is set on the outside of the block wall (1) in the top-floor residential unit, and a load-bearing platform is set at the bottom of the sunroom (8); a sunroom (8) is set on the outside of the block wall (1) in the middle-floor residential unit, and a load-bearing platform is set at the bottom of the sunroom (8), and the load-bearing platform is fixedly connected to the formwork-free concrete beam (3).

9. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The middle block (10), upper block (9) and lower block (11) are all composed of an outer phase change thermal insulation mortar layer (01), an inner phase change thermal insulation mortar layer (02), an inner insulation layer (03) and an outer insulation layer (04); The inner phase change thermal insulation mortar layer (02) has vertical tenons and grooves on both sides. The outer surface of the inner phase change thermal insulation mortar layer (02) has two rows of first dovetail tenons (06). Multiple first dovetail tenons (06) in each row form a dovetail tenon strip, and steel strands (07) are installed inside the dovetail tenon strip. The outer phase change thermal insulation mortar layer (01) has vertical tenons and grooves on both sides. The inner surface of the outer phase change thermal insulation mortar layer (01) has two rows of second dovetail tenons (010). Multiple second dovetail tenons (010) in each row form a dovetail tenon strip, and steel strands (07) are installed inside the dovetail tenon strip. The outer surface of the outer phase change thermal insulation mortar layer (01) has two rows of third dovetail tenons (011). Multiple third dovetail tenons (011) in each row form a dovetail tenon strip. The inner thermal insulation layer The inner surface of (03) is provided with two horizontal first dovetail grooves (08), and the outer surface of the inner insulation layer (03) is provided with two horizontal second dovetail grooves (09); the inner surface of the outer insulation layer (04) is provided with two horizontal third dovetail grooves (012); the outer phase change insulation mortar layer (01), the inner phase change insulation mortar layer (02) and the outer insulation layer (04) have the same width, the width of the inner insulation layer (03) is smaller than that of the outer phase change insulation mortar layer (01), the two sides of the inner insulation layer (03), the outer surface of the inner phase change insulation mortar layer (02) and the inner surface of the outer phase change insulation mortar layer (01) form a joint casting cavity (039); a row of square protrusions (05) are provided on both sides of the outer surface of the inner phase change insulation mortar layer (02) and on both sides of the inner surface of the outer phase change insulation mortar layer (01); The steel strand (07) has two circular rings at both ends, which are set on the outside of the dovetail tenon; the outer surface of the outer insulation layer (04) is coated with black paint; the first dovetail tenon (06) is set in the first dovetail groove (08), the second dovetail tenon (010) is set in the second dovetail groove (09), and the third dovetail tenon (011) is set in the third dovetail groove (012); the first dovetail groove (08), the second dovetail groove (09) and the third dovetail groove (012) are all provided with a baffle (015), which is set in the gap between adjacent first dovetail tenons (06), the gap between adjacent second dovetail tenons (010) and the gap between adjacent third dovetail tenons (011); the inner insulation layer (03) and the outer insulation layer (04) are extruded polystyrene boards; In the middle block (10): the upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013), the lower end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple pits symmetrical to the protrusions (013), the inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits; the upper end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple protrusions (013), the lower end face of the outer phase change thermal insulation mortar layer (01) is provided with multiple pits symmetrical to the protrusions (013), the outer phase change thermal insulation mortar layer (01) is provided with several vertical channels (014), the two ends of the channels (014) are respectively located at the center of the protrusions (013) and the center of the pits; In the upper block (9): the upper part of the inner phase change insulation mortar layer (02) is provided with a row of horizontal through holes (016) and a row of ventilation holes (017), the ventilation holes (017) are located below the horizontal through holes (016), the lower end face of the inner phase change insulation mortar layer (02) is provided with multiple pits, and several vertical channels (014) are provided in the inner phase change insulation mortar layer (02), the lower end of the vertical channels (014) is open and located in the inner phase change insulation mortar layer (02). At the center of the recess on the lower end face of the thermal mortar layer (02), the first top ventilation hole (017) is a blind hole. One open end of the first top ventilation hole (017) is located on the inner surface of the inner phase change thermal insulation mortar layer (02), and the other end of the first top ventilation hole (017) is connected to the upper end of the vertical channel (014) located inside the inner phase change thermal insulation mortar layer (02). The upper part of the outer phase change thermal insulation mortar layer (01) is provided with a row of horizontally penetrating second top horizontal through holes (020) and a row of second top ventilation holes (021). The second top ventilation hole (021) is located below the second top horizontal through hole (020). Multiple pits are provided on the lower end face of the outer phase change insulation mortar layer (01). Several vertical channels (014) are provided inside the outer phase change insulation mortar layer (01). The lower end of each vertical channel (014) is open and located in the center of a pit on the lower end face of the outer phase change insulation mortar layer (01). The second top ventilation hole (021) is a blind hole. One open end of the second top ventilation hole (021) is located on the outer phase change insulation mortar layer (020). On the outer surface of 01), the other end of the second top ventilation hole (021) is connected to the upper end of the vertical channel (014) set inside the outer phase change insulation mortar layer (01); the upper part of the inner insulation layer (03) is provided with a horizontally penetrating third top horizontal through hole (022); the upper part of the outer insulation layer (04) is provided with a row of horizontally penetrating fourth top horizontal through holes (018) and a row of fourth top ventilation holes (019), and the fourth top ventilation holes (019) are set below the fourth top horizontal through holes (018); In the lower block (11): the lower part of the inner phase change thermal insulation mortar layer (02) is provided with a row of horizontally penetrating first bottom horizontal through holes (026) and a row of first bottom ventilation holes (027). The first bottom horizontal through holes (026) are located below the first bottom ventilation holes (027). The upper end face of the inner phase change thermal insulation mortar layer (02) is provided with multiple protrusions (013). The inner phase change thermal insulation mortar layer (02) is provided with several vertical channels (014). The upper end of the vertical channels (014) is open and located at the center of the protrusions (013) on the upper end face of the inner phase change thermal insulation mortar layer (02). The first bottom ventilation holes (026) are located below the first bottom ventilation holes (027). The vent (027) is a blind vent. One open end of the first bottom vent (027) is located on the outer surface of the inner phase change insulation mortar layer (02), and the other end of the first bottom vent (027) is connected to the lower end of the vertical channel (014) located inside the inner phase change insulation mortar layer (02). The lower part of the outer phase change insulation mortar layer (01) is provided with a row of horizontally penetrating second bottom through holes (028) and a row of second bottom vents (029). The second bottom horizontal through holes (028) are located below the second bottom vents (029). The upper surface of the outer phase change insulation mortar layer (01) is provided with multiple protrusions. Block (013), several vertical channels (014) are provided inside the outer phase change insulation mortar layer (01). The upper end of the vertical channel (014) is open and located at the center of the protrusion (013) on the upper end face of the outer phase change insulation mortar layer (01). The second bottom ventilation hole (029) is a blind hole. One end of the open end of the second bottom ventilation hole (029) is located on the inner surface of the outer phase change insulation mortar layer (01), and the other end of the second bottom ventilation hole (029) is connected to the lower end of the vertical channel (014) located inside the outer phase change insulation mortar layer (01). The lower part of the inner insulation layer (03) is provided with a horizontally penetrating first The outer insulation layer (04) has three horizontal through holes (030) and a third horizontally penetrating vent hole (031); a fourth horizontally penetrating through hole (034) is provided at the bottom of the outer insulation layer (04); a pipe plug (025) is provided inside the first horizontal through hole (026); a pipe plug (025) is provided outside the fourth horizontal through hole (034); a pipe plug (025) is provided outside the fourth horizontal through hole (018) and outside the fourth vent hole (019); a pipe plug (025) is provided inside the first horizontal through hole (016) and inside the first vent hole (017). The upper block (9) is provided with a first ventilation pipe (023) and a second ventilation pipe (024). The first ventilation pipe (023) is located in the first top horizontal through hole (016), the third top horizontal through hole (022), the second top horizontal through hole (020), and the fourth top horizontal through hole (018). One end of the second ventilation pipe (024) is located in the second top ventilation hole (021), and the other end of the second ventilation pipe (024) is located in the fourth top ventilation hole (019). The lower block Block (11) is provided with a third ventilation pipe (032) and a fourth ventilation pipe (033). The third ventilation pipe (032) is located in the first bottom horizontal through hole (026), the third bottom horizontal through hole (030), the second bottom horizontal through hole (028), and the fourth bottom horizontal through hole (034). One end of the fourth ventilation pipe (033) passes through the third bottom ventilation hole (031) and is located in the first bottom ventilation hole (027) at the bottom of the inner phase change thermal insulation mortar layer (02). (033) The other end is set in the second bottom ventilation hole (029) of the outer phase change insulation mortar layer (01); the inner insulation layer (03) in the middle block (10), the upper block (9) and the lower block (11) are provided with vertical fifth ventilation pipes (035) on both sides, the fifth ventilation pipes (035) are porous pipes, and the inner insulation layer (03) in the lower block (11) is provided with horizontal sixth ventilation pipes (036) on both sides, the middle of the sixth ventilation pipe (036) and The lower end of the fifth ventilation pipe (035) is connected, one end of the sixth ventilation pipe (036) is set in the first bottom ventilation hole (027), and the other end of the sixth ventilation pipe (036) is set in the second bottom ventilation hole (029); the upper block (9) is provided with transverse seventh ventilation pipes (037) on both sides, one end of the seventh ventilation pipe (037) is connected to the upper end of the fifth ventilation pipe (035), and the other end of the seventh ventilation pipe (037) is set in the fourth top ventilation hole (019); The middle block (10), upper block (9), and lower block (11) are used to construct a block wall. A row of upper blocks (9) is placed at the top of the block wall, and a row of lower blocks (11) is placed at the bottom of the block wall. Multiple rows of middle blocks (10) are placed between the upper blocks (9) and the lower blocks (11). Phase change concrete is poured in the joint pouring cavity (039). The end rings of the steel strands (07) in adjacent upper blocks (9) overlap and longitudinal steel bars (038) are provided in the rings. The end rings of the steel strands (07) in adjacent middle blocks (10) overlap and longitudinal steel bars (038) are provided in the rings. The end rings of the steel strands (07) in adjacent lower blocks (11) overlap and longitudinal steel bars (038) are provided in the rings. Reinforcing bars (038); The vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the upper block (9) on the same vertical line, the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the middle block (10) and the vertical channels (014) in the inner phase change thermal insulation mortar layer (02) of the lower block (11) are connected; The vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the upper block (9) on the same vertical line, the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the middle block (10) and the vertical channels (014) in the outer phase change thermal insulation mortar layer (01) of the lower block (11) are connected; A gasket is provided between the vertically adjacent vertical channels (014).

10. The prefabricated housing system composed of insulated block composite walls according to claim 1, characterized in that: The thickness of the inner insulation layer (03) is not less than 200mm, and the thickness of the outer insulation layer (04) is not less than 50mm; the wall thickness of the galvanized square steel pipe is not less than 1.0mm; the thickness of the roof XPS insulation layer (34) is not less than 150mm; and the thickness of the floor XPS insulation layer (26) is not less than 50mm.

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