Construction process for high-performance enclosure structure of waterworks zero-energy-consumption building

Abstract

The invention discloses a waterworks zero-energy-consumption building high-performance enclosure structure construction process, which belongs to the technical field of building enclosure structures, and comprises non-transparent enclosure structure construction, transparent enclosure structure construction, air tightness measure construction and key thermal bridge treatment construction. By optimizing the construction of the non-transparent enclosure structure and the transparent enclosure structure, the thermal performance and the durability are improved; meanwhile, strict air tightness measures are taken, air permeation is avoided, and heat energy loss is reduced; and through special treatment of the key thermal bridge part, the negative influence of the thermal bridge effect on the energy efficiency of the building is prevented, so that the energy utilization efficiency of the building is effectively improved, the goal of zero energy consumption is achieved, and the construction process not only meets the energy-saving and environment-friendly requirements of modern buildings, but also provides reliable technical support for the realization of zero-energy-consumption buildings.

Description

Technical Field

[0001] The invention relates to the technical field of building enclosure structures, and in particular to a construction process for a high-performance enclosure structure of a zero-energy building of a water plant. Background Art

[0002] As the main component of building energy consumption, building envelope structures directly affect the thermal performance, energy efficiency level and indoor comfort of buildings. Traditional building envelope structures often have problems such as poor thermal insulation performance, insufficient airtightness, and obvious thermal bridge effect. This not only leads to energy waste, but also reduces the comfort of the indoor environment and the service life of the building, and cannot meet the needs of the project. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a high-performance envelope structure construction process for a zero-energy building in a water plant. By optimizing the construction, the energy utilization efficiency of the building is effectively improved to achieve the goal of zero energy consumption. This not only meets the needs of energy conservation and environmental protection in modern buildings, but also provides reliable technical support for the realization of zero-energy buildings.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a construction process of a high-performance enclosure structure of a zero-energy building of a water plant, comprising the following steps:

[0005] The following steps are involved:

[0006] S1. Construction of non-transparent enclosure structure;

[0007] S2, construction of transparent enclosure structure;

[0008] S3. Construction of airtightness measures;

[0009] S4, key thermal bridge treatment construction;

[0010] Wherein, the step S1 specifically includes the following sub-steps:

[0011] S11, exterior wall construction;

[0012] S12, roof construction;

[0013] S13. Construction of cantilevered floor slabs.

[0014] S2, construction of transparent enclosure structure;

[0015] Wherein, the step S3 specifically includes the following sub-steps:

[0016] S31, plastering inside the wall;

[0017] S32, stick airtight film to weak points;

[0018] S33, construction of airtight layer within continuous enclosure.

[0019] As a preferred technical solution of the present invention, step S11 specifically includes the following sub-steps:

[0020] S111. Laying cement mortar leveling layer;

[0021] S112: Install ALC aerated concrete blocks;

[0022] S113: fixing the XPS extruded polystyrene board;

[0023] S114: External cement mortar finishing.

[0024] As a preferred technical solution of the present invention, step S12 specifically includes the following sub-steps:

[0025] S121, roof foundation treatment;

[0026] S122, fine stone concrete laying;

[0027] S123, cement mortar finishing;

[0028] S124, install XPS extruded polystyrene board;

[0029] S125, lightweight aggregate concrete cleaning and tamping;

[0030] S126, reinforced concrete pouring.

[0031] As a preferred technical solution of the present invention, step S13 specifically includes the following sub-steps:

[0032] S131, floor foundation treatment;

[0033] S132, cement mortar application;

[0034] S133, fixing the XPS extruded polystyrene board;

[0035] S134, pouring reinforced concrete;

[0036] S135. Then apply cement mortar on the surface.

[0037] As a preferred technical solution of the present invention, in step S2, the following construction steps are specifically included:

[0038] S21, South exterior window construction:

[0039] S211, preparation and fixing of window frames;

[0040] S212, glass installation;

[0041] S213, airtight sealing treatment;

[0042] S214, detection and debugging;

[0043] S22, East / West / North exterior window construction:

[0044] S221, window frame and glass preparation;

[0045] S222, window frame fixing and adjustment;

[0046] S223, glass installation and sealing;

[0047] S224, post-inspection and maintenance;

[0048] S23, skylight construction:

[0049] S231, skylight frame installation;

[0050] S232, glass installation and commissioning;

[0051] S233, sealing test;

[0052] S24, exterior door construction:

[0053] S241, external door frame preparation;

[0054] S242, glass installation;

[0055] S243. Check air tightness and thermal insulation.

[0056] As a preferred technical solution of the present invention, step S31 specifically includes the following sub-steps:

[0057] S311, wall surface preparation;

[0058] S312, plastering construction;

[0059] S313, surface finishing and maintenance.

[0060] As a preferred technical solution of the present invention, step S32 specifically includes the following sub-steps:

[0061] S321, weak point treatment;

[0062] S322, airtight film preparation;

[0063] S323, airtight film pasting;

[0064] S324, repair and inspection.

[0065] As a preferred technical solution of the present invention, step S33 specifically includes the following sub-steps:

[0066] S331, airtight layer design and planning;

[0067] S332. Selection and construction of airtight membrane or airtight materials;

[0068] S333. Construction inspection and maintenance.

[0069] As a preferred technical solution of the present invention, step S4 specifically includes the following sub-steps:

[0070] S41, External window thermal bridge treatment:

[0071] S411, window frame preparation;

[0072] S412, install the outer window frame;

[0073] S413, closure and sealing;

[0074] S42, Thermal bridge treatment of external cantilever beams:

[0075] S421, beam cleaning and preparation;

[0076] S422, insulation package construction;

[0077] S423, construction of vapor barrier and thermal insulation gasket; S424, inspection and commissioning;

[0078] S43, basic thermal bridge treatment:

[0079] S431, treatment of the connection between foundation and exterior wall; S432, construction of insulation layer wrapping; S433, inspection and testing;

[0080] S44, roof thermal bridge treatment:

[0081] S441, treatment of the joint between the roof and the exterior wall; S442, thermal insulation construction;

[0082] S443, Inspection and testing;

[0083] S45, External wall thermal bridge treatment:

[0084] S451, treatment of the connection between the exterior wall and the beam; S452, rock wool board wrapping construction;

[0085] S453, vapor barrier construction;

[0086] S454. Inspection and testing.

[0087] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0088] 1. Non-transparent enclosure structure construction: This construction process significantly improves the thermal performance of the enclosure structure by using advanced insulation materials, such as XPS extruded polystyrene boards and rock wool boards. Compared with traditional materials, it has better insulation and heat preservation effects and longer service life. It not only reduces the energy consumption of the building, but also effectively improves the comfort and durability of the building, ensuring that the building achieves a lower heat transfer coefficient, improves thermal insulation performance, and reduces energy consumption.

[0089] 2. Construction of transparent enclosure structure: This technology uses vacuum glass and heat-insulating photochromic glass, which greatly improves the heat insulation and sound insulation performance of the windows, and has functions such as dynamic dimming and sun shading, which is significantly better than traditional glass windows.

[0090] 3. Construction of airtightness measures: This construction process adopts measures such as internal airtight layer, wall plastering and pasting of airtight film in weak parts to prevent air infiltration, effectively improve the airtightness of the building's external envelope structure, eliminate weak links, reduce energy loss, ensure that weak links such as the building's exterior wall and the ground, and wall panel gaps are effectively sealed, meet the airtightness level requirements, and improve the comfort and stability of the indoor environment.

[0091] 4. Key thermal bridge treatment construction: This process avoids the thermal bridge effect to the greatest extent through special treatment of key parts such as external windows, external beams, roofs, foundations, etc. This detailed treatment not only reduces heat loss, but also avoids the occurrence of condensation, optimizes the thermal performance of the building, thereby maintaining the stability of indoor temperature and providing a more comfortable living environment. Based on the above beneficial effects, the background technology of "a high-performance enclosure structure construction process for zero-energy buildings in water plants" is summarized BRIEF DESCRIPTION OF THE DRAWINGS

[0092] Figure 1 It is a schematic diagram of the overall construction process of the present invention;

[0093] Figure 2 A schematic diagram of the construction process of the non-transparent enclosure structure provided by the present invention;

[0094] Figure 3 A schematic diagram of the construction process of the transparent enclosure structure provided by the present invention;

[0095] Figure 4 A schematic diagram of the construction process of the airtightness measures provided by the present invention;

[0096] Figure 5 A schematic diagram of the key thermal bridge treatment construction process provided by the present invention;

[0097] Figure 6 A schematic diagram of the method for strengthening the air tightness of the ALC plate seam nodes provided by the present invention;

[0098] Figure 7A schematic diagram of the air tightness of the wall-penetrating pipeline (indoor-outdoor penetration) provided by the present invention;

[0099] Figure 8 A schematic diagram of the thermal bridge treatment effect of an external window provided by the present invention;

[0100] Fig. 9 A schematic diagram of the thermal bridge treatment effect of the cantilever beam provided by the present invention;

[0101] Fig.10 A schematic diagram of the basic thermal bridge treatment effect provided by the present invention;

[0102] Fig.11 A schematic diagram of the roof thermal bridge treatment effect provided by the present invention;

[0103] Fig.12 This is a schematic diagram of the exterior wall thermal bridge treatment effect provided by the present invention. DETAILED DESCRIPTION

[0104] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0105] Example:

[0106] like Figure 1 - Fig.12 As shown, this embodiment proposes a high-performance enclosure structure construction process for a zero-energy building of a water plant, comprising the following steps:

[0107] S1. The construction of non-transparent enclosure structures can be divided into exterior wall construction, roof construction and cantilevered floor construction. This construction process is used for the construction of exterior walls, roofs and cantilevered floors to ensure that the comprehensive heat transfer coefficient of the enclosure structure meets high performance requirements. Through reasonable material combinations and construction methods, the thermal insulation and heat preservation performance of the building can be effectively improved and energy consumption can be reduced.

[0108] Specifically, during the exterior wall construction:

[0109] First, lay the cement mortar leveling layer, ensure that the wall foundation is flat and solid, without loose soil and debris, and apply a layer of waterproof treatment layer on the wall surface. The thickness of the cement mortar leveling layer is 10mm;

[0110] Secondly, install ALC aerated concrete blocks, lay 200mm ALC aerated concrete blocks layer by layer, use special adhesive or mortar for masonry, and ensure that the joints are flat;

[0111] Then, fix the XPS extruded polystyrene board (ρ=25,030 grade, 100mm) and paste the extruded polystyrene board on the surface of the ALC aerated concrete block. The gap between the boards should be strictly controlled to ensure that the XPS board is close to the wall surface and avoid gaps during the construction process;

[0112] Finally, the outer layer of cement mortar is applied, and the outer wall is plastered with 10mm cement mortar to ensure that the thickness of the mortar layer is uniform. After the cement mortar is plastered, the surface should be trimmed to ensure flatness;

[0113] In the construction of exterior walls, the high-efficiency thermal insulation performance, good anti-permeability and anti-freeze properties, and the XPS extruded polystyrene board have a low thermal conductivity coefficient, which can effectively reduce the energy loss of the building. ALC aerated concrete has good strength and light weight, which can reduce the building load.

[0114] Specifically, during roof construction:

[0115] First, treat the roof foundation, clean the roof foundation to ensure there is no debris and dust, and treat the roof waterproof layer to prevent moisture penetration;

[0116] Secondly, fine stone concrete is laid. A fine stone concrete layer with a thickness of 40mm is poured on the roof foundation to ensure the flatness of the concrete layer. A vibrator is used to fully compact the concrete to ensure that it is dense.

[0117] Then, apply cement mortar to the surface, apply a 20mm thick layer of cement mortar on the fine stone concrete layer for leveling;

[0118] After that, install the XPS extruded polystyrene board, lay the 200mm thick XPS extruded polystyrene board on the cement mortar layer, keep the gap to the minimum to ensure good insulation effect;

[0119] Next, the lightweight aggregate concrete is rammed, and a 30mm thick lightweight aggregate concrete ramming layer is laid on the XPS layer to ensure waterproof and compressive resistance;

[0120] Finally, reinforced concrete pouring is carried out. 120mm thick reinforced concrete is poured on the clean layer to complete the supporting part of the roof structure. After the concrete is poured, it is cured to ensure its strength.

[0121] During roof construction, the roof structure has excellent thermal insulation performance, which can effectively reduce the roof temperature and reduce air-conditioning energy consumption. The use of XPS extruded polystyrene board improves the efficiency of the roof insulation layer and extends its service life. Light aggregate concrete has good compressive strength and waterproof effect.

[0122] Specifically, during the construction of the cantilevered floor:

[0123] First, carry out floor foundation treatment, clean the floor surface to ensure there is no floating dust or debris, and do waterproofing to prevent water penetration;

[0124] Secondly, apply cement mortar, apply a 10mm thick layer of cement mortar on the surface of the floor to enhance the bonding strength;

[0125] Then, fix the XPS extruded polystyrene board and fix the 100mm thick XPS board on the cement mortar layer to ensure that the board is flat and has no gaps;

[0126] After that, pour reinforced concrete. Pour a 200mm thick reinforced concrete layer on the XPS board, and set up a steel mesh or steel frame according to the design requirements to ensure the structural strength.

[0127] Finally, apply cement mortar on the surface, apply a 10mm thick layer of cement mortar on the reinforced concrete layer to finish the surface;

[0128] During the construction of cantilevered floor slabs, XPS extruded polystyrene boards can effectively prevent heat loss through the floor slabs and improve the thermal insulation performance of the floor slabs. Reinforced concrete provides good structural strength to ensure the safety and durability of the cantilevered floor slabs. The cement mortar finishing process can ensure a smooth and beautiful surface and enhance the integrity of the floor slabs.

[0129] S2. Transparent enclosure structure construction uses vacuum glass or heat-insulating photochromic glass: the U value of vacuum glass can reach 0.47W / ㎡·K, the weighted sound insulation exceeds 39dB, the structure is light and thin, the thinnest can be 8.3mm, which greatly reduces the thickness of the profile; heat-insulating photochromic glass has functions such as dynamic dimming, sunshade and heat insulation, and anti-glare. It relies on the glass itself to achieve "passive shading" as a green building material product. It ensures the balance of sunshade and heat insulation while achieving hot pressure ventilation. Vacuum glass or heat-insulating photochromic glass includes different types of south exterior windows, east / west / north exterior windows, skylights and exterior doors, which are constructed separately. This construction process ensures the insulation, sound insulation, airtightness and aesthetics of the building facade. The process covers multiple components such as exterior windows, skylights, exterior doors, etc. to ensure a comfortable environment and energy-saving effects inside and outside the building.

[0130] Specifically, the south exterior windows are made of polyurethane framed three-glazed LOW-E argon 5TL+16Ar+5TL+16Ar+5T windows, with a comprehensive heat transfer coefficient of 1.5W / (㎡·K) and an air tightness level of 8. During the construction of the south exterior windows:

[0131] First, prepare and fix the window frame. The window frame is made of polyurethane. First, make sure the window frame size matches the opening, clean the window frame installation position, and use standardized installation tools to fix the window frame, making sure the frame is horizontal, vertical and firmly fixed;

[0132] Next, install the glass: prepare the three layers of Low-E glass and the gas barrier (argon filling) in order. When installing the glass, use a special glass clamp to firmly place the window glass into the window frame to ensure the seal between the glass and the window frame.

[0133] Then, airtight sealing treatment is carried out, and high-performance sealant is used between the window frame and the wall to ensure that the sealant is evenly coated to avoid bubbles and gaps, and to achieve the 8-level airtightness requirements;

[0134] Finally, testing and debugging are carried out: after the window installation is completed, the sealing, thermal insulation performance and other tests are carried out to ensure that the thermal insulation and airtightness of the window meet the design standards;

[0135] During the construction of the south exterior windows, triple-glazed windows with low-emissivity glass and argon filling were used, which have strong thermal insulation performance and significant energy-saving effects. The polyurethane frame has good thermal insulation properties, which enhances the thermal performance of the overall window. The high airtightness ensures the stability of the indoor temperature and effectively reduces energy consumption.

[0136] Specifically, the door and window types of the east / west / north exterior windows are polyurethane frame vacuum glass 5TL+16Ar+5TL+V+5T warm edge windows, with a comprehensive heat transfer coefficient of 1.2W / (㎡·K) and an air tightness level of 8. During the construction of the east / west / north exterior windows:

[0137] First, prepare the window frame and glass, cut the polyurethane window frame according to the design requirements, ensure the size is accurate, select the vacuum glass and warm edge glass strips, and prepare them in order;

[0138] Secondly, fix and adjust the window frame, reserve the window frame installation position on the wall, clean the window frame installation base, use professional tools to firmly install the polyurethane frame, and ensure the frame position is correct;

[0139] Then, install and seal the glass. When installing vacuum glass, put the glass layers (5TL+16Ar+5TL+V+5T) into the window frame in sequence to ensure that the glass is not damaged. Use high-quality sealant to fill the joints between the window frame and the glass to ensure that high airtightness standards are met.

[0140] Finally, conduct post-inspection and maintenance. After installation, check the entire window to ensure there is no air leakage or water leakage. Regularly check the sealing of the joints between the window frame and the glass to ensure the performance of the window.

[0141] In the construction of east / west / north exterior windows, vacuum glass has excellent thermal insulation and sound insulation effects, which can effectively reduce external noise and heat transfer. The polyurethane window frame is combined with warm edge technology to improve the thermal insulation performance of the overall window and reduce the cold and hot bridge effect. The high airtightness design helps to reduce energy loss and improve the building's energy-saving performance.

[0142] Specifically, the skylight door and window type uses 5mm+1WB+5mm (outdoor)+12A+laminated safety glass, the comprehensive heat transfer coefficient is 1.5W / (㎡·K), and the air tightness level is level 8. During the skylight construction:

[0143] First, install the skylight frame, clean the skylight position, ensure the accuracy of the skylight frame fixing position, install the skylight frame, ensure it is horizontal and vertical, and use standardized tools to fix it firmly;

[0144] Secondly, install and debug the glass. Install 5mm thick laminated safety glass according to the design requirements to ensure that the glass is strong and not easy to break. Fill the space between the glass and the skylight frame with high-performance sealant to ensure that the air tightness reaches level 8.

[0145] Finally, test the windows for tightness, check for air leaks, and ensure that the skylights are well sealed and have effective heat and sound insulation.

[0146] During the construction of the skylight, laminated safety glass has explosion-proof properties to ensure high safety. The transparency and thermal insulation of the skylight are very high, which can increase natural light and reduce the need for artificial lighting. The high airtightness ensures that the skylight is sealed and will not cause energy loss.

[0147] Specifically, the doors and windows of the exterior doors are polyurethane triple-glazed LOW-E argon 5TL+16Ar+5TL+16Ar+5T windows, with a comprehensive heat transfer coefficient of 1.5W / (㎡·K) and an air tightness level of 8. During the construction of the exterior doors:

[0148] First, prepare the outer door frame. The outer door frame is made of polyurethane. First, determine the installation position and clean the door frame installation surface. Fix the polyurethane frame to the door frame opening, ensure it is horizontal and vertical, and use appropriate tools to fix it.

[0149] Secondly, install the glass, put the three layers of Low-E glass into the door frame in turn, ensure that the glass and the frame are well sealed, and use professional sealant to fill the joints between the door frame and the glass to ensure that it reaches level 8 airtightness;

[0150] Finally, conduct air tightness and thermal insulation checks to ensure that doors and windows meet design standards;

[0151] In the construction of the exterior door, triple-glazed LOW-E glass combined with argon filling has good thermal insulation, sound insulation and UV resistance, superior performance, reduces heat loss, and the high airtightness design ensures the stability and comfort of the exterior door.

[0152] S3. Construction of airtightness measures may include plastering inside the wall, pasting airtight membranes at weak points and continuous surrounding inner airtight layer construction. This construction process aims to improve the airtightness of the building's exterior envelope by setting up an inner airtight layer, prevent air infiltration, reduce energy loss, ensure the comfort and energy-saving effect of the indoor environment, ensure that the weak links of the building are effectively sealed, meet the airtightness level requirements, and improve the comfort and stability of the indoor environment.

[0153] Specifically, during the plastering construction inside the wall:

[0154] First, clean the wall surface to ensure that there is no dust, loose soil and oil stains. In particular, clean and repair the joints of the ALC wall panels, wall holes and other parts before construction, deal with wall defects, and ensure that the surface is flat and solid;

[0155] Secondly, carry out plastering construction, use high-quality cement mortar and airtightness enhancing additives for plastering to ensure uniform thickness and strong adhesion. The plastering thickness should be ≥15mm and should not be too thin to ensure sufficient airtightness effect;

[0156] Finally, surface finishing and maintenance are carried out. After the plastering is completed, the surface is trimmed to ensure that there are no cracks or bubbles and the surface is flat. The plaster layer should be maintained to ensure that the mortar is fully hardened and avoid falling off;

[0157] During the plastering construction inside the wall, the overall sealing of the wall is enhanced, air infiltration is avoided, the thermal insulation performance of the wall is increased, and heat loss is reduced. The thickness of the plastering layer ensures the firmness and stability of the wall surface.

[0158] Specifically, when pasting the airtight film at the weak point:

[0159] First, deal with the weak points, conduct detailed inspections on the joints of ALC wall panels, corners between exterior walls and floors, and other weak areas to ensure that these areas are not loose or cracked. Repair the problematic areas first to ensure the basic quality of the construction;

[0160] Secondly, prepare the airtight film, select the airtight film that meets the standards, ensure that its material has excellent airtightness and durability, cut the airtight film according to the design requirements, and ensure that the size of the film covers the seams and corners;

[0161] Then, paste the airtight film on the inside of the joints of the wall panels and the corners of the exterior wall and floor. Use special airtight glue to fix the airtight film tightly on the wall surface to ensure there are no bubbles, gaps or damage.

[0162] Finally, trimming and inspection are carried out. After the airtight film is pasted, a detailed inspection is carried out to ensure that the edge of the film is tightly combined with the wall to avoid air leakage. The airtightness test is carried out on the entire airtight film construction area to ensure that the design standards are met;

[0163] During the construction of pasting airtight film on weak parts, it can effectively prevent air from penetrating from weak parts and enhance the overall airtightness. It is simple and easy, with a short construction period. It is suitable for various complex parts. The airtight film has good durability and elasticity and can maintain the airtight effect for a long time.

[0164] Specifically, during the construction of the continuous inner airtight layer:

[0165] First, design and plan the airtight layer. According to the architectural design drawings and airtightness requirements, plan the specific location and range of the airtight layer, determine the airtightness measures for various walls, doors, windows, joints, etc., and ensure that the airtight layers in all parts are continuous and seamless.

[0166] Secondly, select and construct airtight films or airtight materials, select appropriate airtight films or high-airtight coating materials, ensure that these materials meet the building standards and have good air-tightness performance, stick airtight films or apply airtight coatings on the wall surface, and ensure that the joints from the wall to the window frame, door frame and other parts are airtight;

[0167] Finally, conduct construction inspection and maintenance. After completing the construction of the airtight layer, conduct a comprehensive inspection to ensure that the airtight membrane in all parts is free of damage and gaps. Regularly check the tightness of the airtight layer, especially the joints and corners, to prevent air leakage.

[0168] During the construction of the continuous inner airtight layer, the airtight layer is continuously surrounded to ensure the optimal airtightness of the entire external protective structure and reduce the energy loss of the building. The construction process is suitable for complex structural forms and can fully cover the entire building facade, significantly improving the energy efficiency of the building, reducing air infiltration and external noise interference, and improving indoor comfort.

[0169] S4. Key thermal bridge treatment construction can be divided into external window thermal bridge treatment, external cantilever beam thermal bridge treatment, foundation thermal bridge treatment, roof thermal bridge treatment and exterior wall thermal bridge treatment. This construction process aims to effectively reduce the loss of building heat through thermal bridge treatment of external windows, external cantilever beams, foundations, roofs and exterior walls, avoid temperature unevenness and condensation problems caused by thermal bridge effects, ensure the overall thermal insulation performance of the building, optimize the inner surface temperature of the thermal bridge area, and improve the energy saving and comfort of the building.

[0170] Specifically, when constructing the external window thermal bridge treatment:

[0171] First, prepare the window frame. Before installing the exterior window, confirm the window frame position and size to ensure that the window frame is embedded in the window hole reserved in the exterior wall to avoid insufficient load-bearing capacity of the exterior wall. Use a high-load-bearing insulation sub-frame for reinforcement to ensure that the window frame can withstand the load and provide good insulation effect.

[0172] Secondly, install the outer window frame. When installing the outer window frame, ensure that it is tightly combined with the outer wall to avoid gaps. Ensure that there is enough insulation layer (≥100mm) on the outside of the outer window frame and wrap it with insulation material.

[0173] Finally, seal and seal the joints between the window frame and the exterior wall to prevent air infiltration, ensure that the inner surface temperature around the window frame is ≥12.2℃, and avoid condensation through the reasonable layout of the insulation layer and the sealing layer;

[0174] During the construction of exterior wall thermal bridge treatment, embedded installation avoids insufficient load-bearing of the exterior wall and enhances the stability of the window frame. The high-load-bearing insulation sub-frame improves the load-bearing capacity of the window frame and enhances the thermal insulation performance of the window frame. External insulation covering the window frame effectively reduces the thermal bridge effect, avoids condensation, and improves the overall thermal performance of the building.

[0175] Specifically, when constructing thermal bridge treatment for external cantilever beams:

[0176] First, clean and prepare the beam. Before construction, clean the external beams thoroughly to ensure that there is no oil or impurities on the beam surface. Measure the length and position of the external beams to ensure that their dimensions are consistent with the design requirements.

[0177] Secondly, carry out insulation wrapping construction, use 100mm thick extruded polystyrene board to wrap the external cantilever beam, the wrapping length is ≥2500mm, ensure that the insulation layer is continuous and uninterrupted, and ensure that there is no gap between the insulation board and the beam surface during wrapping, and firmly stick them;

[0178] Then, the vapor barrier and thermal insulation gasket are constructed. The vapor barrier is laid on the indoor side to prevent water vapor from entering the thermal insulation layer and avoid condensation. Thermal insulation gaskets are added at the connection between the beam and the I-beam, and the thermal insulation layer is ensured to be completely covered.

[0179] Finally, inspection and debugging are carried out: after completion, thermal bridge simulation is carried out to check whether the inner surface temperature reaches 17.6℃ to ensure the effect of thermal bridge treatment;

[0180] In the construction of thermal bridge treatment of cantilever beams, extruded polystyrene board has excellent thermal insulation performance. After wrapping the beam body, it prevents heat from being transferred to the room. The vapor barrier effectively blocks water vapor penetration and prevents condensation problems. The combination of thermal insulation gasket and thermal insulation wrap effectively increases the inner surface temperature and avoids thermal bridge phenomena.

[0181] Specifically, during the construction of foundation thermal bridge treatment:

[0182] First, treat the joints between the foundation and the exterior wall, make sure there are no cracks or gaps, clean the joints between the outside of the foundation and the exterior wall, and ensure the surface is smooth;

[0183] Secondly, carry out insulation layer wrapping construction, use ≥100mm thick extruded polystyrene board for wrapping, ensure the insulation layer is continuous, cover the joint between the foundation and the exterior wall, and the joint between the insulation board and the exterior wall and foundation should be tight without leaving any gaps;

[0184] Finally, inspection and testing are carried out: after completion, thermal bridge simulation is carried out to ensure that the inner surface temperature reaches 16.3°C to effectively avoid thermal bridge effects;

[0185] During the foundation thermal bridge treatment construction, the insulation layer is continuously wrapped to reduce the heat conduction between the foundation and the exterior wall, increase the inner surface temperature, effectively avoid condensation and thermal bridge effects, and enhance the energy-saving performance of the building.

[0186] Specifically, during the construction of roof thermal bridge:

[0187] First, the joints between the roof and the exterior wall are processed, the joints between the roof and the exterior wall are cleaned and trimmed to ensure that there are no gaps and cracks, and the connection between the exterior wall and the roof is appropriate to facilitate the wrapping of the insulation material;

[0188] Secondly, carry out insulation construction, continuously wrap the extruded polystyrene board between the roof and the exterior wall to ensure that the insulation layer is uninterrupted. According to the design requirements, 100mm of insulation is applied on the eaves and 200mm on the roof.

[0189] Finally, inspection and testing are carried out: after the construction is completed, thermal bridge simulation is carried out to ensure that the internal surface temperature reaches 18.5℃ to avoid thermal bridge effect;

[0190] During the construction of roof thermal bridges, continuously wrapping the insulation layer effectively reduces heat loss and enhances the overall thermal insulation effect of the roof. The different designs of eaves and roof thickness ensure uniform temperature distribution and avoid thermal bridges and condensation.

[0191] Specifically, during the construction of the exterior wall thermal bridge:

[0192] First, treat the connection between the exterior wall and the beam to ensure that the interface is tight and avoid thermal bridges.

[0193] Secondly, rock wool board wrapping construction is carried out. Rock wool board is used to wrap the exterior wall for insulation. 300mm thick and 1500mm long rock wool board is used on the top and left and right sides of the beam to ensure continuous coverage of the insulation layer. 300mm thick and 1000mm long rock wool board + 100mm thick and 500mm long rock wool board is used on the bottom of the beam to ensure the integrity and effectiveness of the wrapping;

[0194] Then, the vapor barrier is constructed. The vapor barrier is laid on the surface of the rock wool board to prevent water vapor from penetrating into the insulation layer and ensure a long-lasting insulation effect.

[0195] Finally, inspection and testing were carried out, and after completion, thermal bridge simulation was performed to ensure that the inner surface temperature reached 12.2°C to effectively avoid thermal bridges;

[0196] In the construction of exterior wall thermal bridges, the use of rock wool boards has excellent thermal insulation and sound insulation effects, which can significantly improve the thermal performance of the exterior wall. The vapor barrier effectively prevents water vapor penetration and ensures that the insulation layer is not damaged.

[0197] It can be seen that the high-performance enclosure structure construction process of the zero-energy building of a water plant provided by the present invention adopts advanced insulation materials such as XPS extruded polystyrene board and rock wool board, which have better thermal performance and longer service life than traditional materials; the innovation of transparent enclosure structure and the use of vacuum glass and heat-insulating color-changing glass greatly improve the heat insulation and sound insulation performance of windows, and have functions such as dynamic dimming and sunshade, which are significantly better than traditional glass windows; the use of wall plastering, airtight film pasting and other technologies further eliminates weak links and effectively improves the airtightness of the building. The treatment of airtightness in the existing technology is not comprehensive enough; in the all-round treatment of key thermal bridges, through special treatment of key parts such as external windows, external cantilever beams, roofs, foundations, etc., the thermal bridge effect is avoided to the greatest extent, while traditional construction methods often ignore these details and easily cause heat loss.

[0198] In summary, the present invention aims to improve the overall thermal performance of the building, especially through key thermal bridge treatment, insulation and airtightness enhancement measures of the envelope structure, the insulation materials and high airtightness design of various envelope structures effectively reduce energy loss, improve building energy efficiency, and achieve significant energy-saving effects. It avoids thermal bridges and condensation phenomena, maintains a stable indoor temperature, provides a comfortable living environment, and reduces air conditioning and heating energy consumption. It not only ensures the energy-saving effect of the building, but also greatly improves the comfort, durability and environmental protection, which is significantly better than the existing traditional construction technology.

[0199] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0200] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above implementation regulations. The above implementation regulations and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-performance enclosure structure construction process for a zero-energy building in a waterworks, characterized in that: The following steps are involved: S1. Construction of non-transparent enclosure structure; S2, construction of transparent enclosure structure; S3. Construction of airtightness measures; S4, key thermal bridge treatment construction; Wherein, the step S1 specifically includes the following sub-steps: S11, exterior wall construction; S12, roof construction; S13, construction of external cantilevered floor slabs; Wherein, the step S3 specifically includes the following sub-steps: S31, plastering inside the wall; S32, stick airtight film to weak points; S33, construction of airtight layer within continuous enclosure.

2. According to claim 1, a high-performance enclosure structure construction process for a zero-energy building of a waterworks is characterized by: The step S11 specifically includes the following sub-steps: S111. Lay cement mortar leveling layer: the thickness of cement mortar leveling layer is 10mm; S112: Install ALC aerated concrete blocks: Lay 200mm ALC aerated concrete blocks layer by layer, ensuring that the joints are smooth; S113: Fixing XPS extruded polystyrene board: Paste the extruded polystyrene board on the surface of ALC aerated concrete blocks to avoid gaps during construction; S114: External cement mortar plastering: Apply 10mm cement mortar plastering to the external wall.

3. According to claim 1, a high-performance enclosure structure construction process for a zero-energy building of a waterworks is characterized by: The step S12 specifically includes the following sub-steps: S121. Roof foundation treatment: clean the roof foundation and treat the roof waterproof layer to prevent water penetration; S122, Fine stone concrete laying: Pour a fine stone concrete layer on the roof foundation with a thickness of 40mm; S123, Cement mortar finishing: Apply a 20mm thick layer of cement mortar on the fine stone concrete layer; S124. Installing XPS extruded polystyrene board: laying 200 mm thick XPS extruded polystyrene board on the cement mortar layer; S125, Lightweight aggregate concrete tamping: Lay a 30mm thick light aggregate concrete tamping layer on the XPS layer; S126. Reinforced concrete pouring: Pour 120mm thick reinforced concrete on the clean layer to complete the supporting part of the roof structure.

4. According to claim 1, a high-performance enclosure construction process for a zero-energy building of a waterworks is characterized by: The step S13 specifically includes the following sub-steps: S131. Floor foundation treatment: clean the floor surface and do waterproofing; S132, Cement mortar application: Apply a 10mm thick layer of cement mortar on the floor surface; S133, fix the XPS extruded polystyrene board: fix the 100 mm thick XPS board on the cement mortar layer; S134, pouring reinforced concrete: pouring a 200mm thick reinforced concrete layer on the XPS board; S135. Then apply cement mortar: Apply a 10mm thick layer of cement mortar on the reinforced concrete layer.

5. According to claim 1, a high-performance enclosure construction process for a zero-energy building of a waterworks is characterized by: In step S2, vacuum glass or heat-insulating photochromic glass is used. The U value of vacuum glass can reach 0.47W / ㎡·K, the weighted sound insulation exceeds 39dB, and the thinnest can be 8.3mm. The heat-insulating photochromic glass has the functions of dynamic dimming, sunshade and heat insulation, and anti-glare. Among them, vacuum glass or heat-insulating chromatic glass includes different types of south exterior windows, east / west / north exterior windows, skylights and exterior doors; The specific construction steps include the following: S21, South exterior window construction: The door and window type adopts polyurethane frame three-glazed LOW-E argon 5TL+16Ar+5TL+16Ar+5T window, with a comprehensive heat transfer coefficient of 1.5W / (㎡·K) and an air tightness level of 8; S211. Window frame preparation and fixing: The window frame is made of polyurethane. First, make sure the window frame size matches the opening and clean the window frame installation location; S212, Glass installation: Prepare three layers of Low-E glass and gas barrier (argon filling) in order; S213, airtight sealing treatment: Use high-performance sealant between the window frame and the wall to perform airtight treatment to ensure that the sealant is evenly coated; S214, testing and debugging: conduct tests on sealing, thermal insulation performance, etc.; S22, East / West / North exterior window construction: The door and window types use polyurethane frame vacuum glass 5TL+16Ar+5TL+V+5T warm edge windows, the comprehensive heat transfer coefficient is 1.2W / (㎡·K), and the air tightness level is 8; S221, preparation of window frames and glass; S222. Fixing and adjusting window frames: reserve a window frame installation position on the wall and clean the window frame installation base surface; S223, Glass installation and sealing: When installing vacuum glass, put the glass layers into the window frame in order; S224, post-inspection and maintenance; S23. Skylight construction: The door and window types are 5mm+1WB+5mm (outdoor)+12A+laminated safety glass, with a comprehensive heat transfer coefficient of 1.5W / (㎡·K) and an air tightness level of 8; S231, skylight frame installation; S232, Glass installation and commissioning: Install 5mm thick laminated safety glass according to design requirements, and fill high-performance sealant between the glass and the skylight frame to ensure that the air tightness reaches level 8; S233, Sealing test: Conduct a sealing test on the windows; S24, External door construction: The door and window type adopts polyurethane triple-glazed LOW-E argon 5TL+16Ar+5TL+16Ar+5T window, with a comprehensive heat transfer coefficient of 1.5W / (㎡·K) and an air tightness level of 8; S241, Preparation of external door frame: The external door frame is made of polyurethane. Determine the installation position and clean the door frame installation surface; S242, Glass installation: Place three layers of Low-E glass into the door frame in sequence to ensure that it reaches level 8 airtightness; S243, Air tightness and thermal insulation inspection: Conduct strict air tightness and thermal insulation tests.

6. The high-performance enclosure construction process for a zero-energy building of a waterworks according to claim 1 is characterized by: The step S31 specifically includes the following sub-steps: S311. Wall surface preparation: clean the wall surface, especially clean and repair the joints of ALC wall panels, wall holes and other parts before construction; S312, plastering construction: use high-quality cement mortar and air tightness enhancing additives for plastering to ensure uniform thickness and strong adhesion. The plastering thickness should be ≥15mm; S313, surface finishing and maintenance.

7. The high-performance enclosure construction process for a zero-energy building of a waterworks according to claim 1 is characterized by: The step S32 specifically includes the following sub-steps: S321. Weak spot treatment: Conduct detailed inspection on weak spots such as joints of ALC wall panels, corners between exterior walls and floors; S322, Preparation of airtight film: Select airtight film that meets the standards and ensure that the film size covers the seams and corners; S323, pasting of airtight film: pasting the airtight film on the inner side of the joints of the wall panels and the corners of the exterior walls and the floor; S324, repair and inspection.

8. The high-performance enclosure structure construction process for a zero-energy building of a waterworks according to claim 1 is characterized by: The step S33 specifically includes the following sub-steps: S331. Airtight layer design and planning: Plan the specific location and scope of the airtight layer and determine the airtightness measures for each part; S332. Selection and construction of airtight film or airtight materials: Select appropriate airtight film or high airtight coating material, and stick the airtight film or apply airtight coating on the wall surface; S333. Construction inspection and maintenance.

9. The high-performance enclosure structure construction process for a zero-energy building of a waterworks according to claim 1 is characterized by: The step S4 specifically includes the following sub-steps: S41. External window thermal bridge treatment: embedded installation + high load-bearing insulation subframe + external insulation covering window frame ≥100mm, inner surface temperature ≥12.2℃; S411, Window frame preparation: confirm the window frame position and size, and use high load-bearing insulation sub-frame for reinforcement; S412. Install the outer window frame: Ensure that the outer window frame is tightly combined with the outer wall to avoid gaps. Ensure that there is enough insulation layer (≥100mm) on the outside of the outer window frame and wrap it with insulation materials; S413, Sealing and sealing: Seal the joints between the window frame and the exterior wall to prevent air infiltration, ensure that the inner surface temperature around the window frame is ≥12.2℃, and avoid condensation through the reasonable layout of the insulation layer and the sealing layer; S42. Thermal bridge treatment of cantilever beams: cantilever beams are wrapped with 100mm thick extruded polystyrene boards, with a length of ≥2500mm, a vapor barrier is laid on the indoor side, and a thermal insulation pad is added at the connection between the beam and the I-beam, and wrapped with insulation; S421, beam cleaning and preparation: fully clean the external cantilever beams and measure the length and position of the external cantilever beams; S422, insulation wrapping construction: Use 100mm thick extruded polystyrene board to wrap the external cantilever beam, and the wrapping length should be ≥2500mm; S423, Vapor barrier and thermal insulation gasket construction: Lay a vapor barrier on the indoor side and add thermal insulation gaskets at the connection between the beam and the I-beam; S424, Inspection and debugging: After completion, conduct thermal bridge simulation to check whether the inner surface temperature reaches 17.6°C; S43. Foundation thermal bridge treatment: The foundation and the exterior wall are continuously wrapped with extruded polystyrene boards (≥100mm) to ensure that the insulation layer is continuous and uninterrupted. The inner surface temperature can reach 16.3℃, effectively avoiding thermal bridges. S431. Treatment of the joint between foundation and exterior wall: Treatment of the joint between foundation and exterior wall; S432. Insulation layer wrapping construction: Use extruded polystyrene board ≥100mm thick for wrapping. S433, Inspection and testing: After completion, thermal bridge simulation is carried out to ensure that the inner surface temperature reaches 16.3°C to effectively avoid thermal bridge effect; S44, Roof thermal bridge treatment: The roof and the exterior wall are continuously wrapped with extruded polystyrene board, with 100mm insulation on the eaves and 200mm insulation on the roof; S441. Treatment of the joint between the roof and the exterior wall: Clean and trim the joints between the roof and the exterior wall. S442, Insulation construction: Continuously wrap the extruded polystyrene board between the roof and the exterior wall, insulate 100mm on the eaves and 200mm on the roof. S443, Inspection and testing: After the construction is completed, conduct thermal bridge simulation to ensure that the inner surface temperature reaches 18.5℃ to avoid thermal bridge effect. S45. External wall thermal bridge treatment: The insulation wrapping method is to use 300mm thick and 1500mm long rock wool board on the top and left and right sides of the beam, and 300mm thick and 1000mm long rock wool board + 100mm thick and 500mm long rock wool board on the bottom of the beam. S451. Treatment of the connection between the exterior wall and the beam: Treatment of the connection between the exterior wall and the beam; S452, rock wool board wrapping construction: Use rock wool boards to wrap the exterior walls for insulation. Use 300mm thick rock wool boards to wrap the top and left and right sides of the beams, and use rock wool boards of different sizes to wrap the bottom of the beams. S453, Vapor barrier construction: Lay the vapor barrier on the surface of the rock wool board; S454, Inspection and testing: After completion, conduct thermal bridge simulation to ensure that the inner surface temperature reaches 12.2°C to effectively avoid thermal bridges.

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