An external thermal insulation system with intelligent monitoring function and a construction method thereof

Abstract

The present application relates to the technical field of building outer wall engineering, and particularly relates to an external thermal insulation system with intelligent monitoring function and a construction method thereof. The external thermal insulation system comprises a thermal insulation module, a plurality of thermal insulation modules are spliced and assembled into a thermal insulation board, and a sensor is arranged on the surface of the thermal insulation module; a flexible transition layer one is arranged on the inner side of the thermal insulation board; a plurality of connecting pieces are arranged on the edge of the thermal insulation module; the connecting piece is formed by inserting a connecting piece upper half and a connecting piece lower half; the connecting piece upper half is anchored to the base wall by a mechanical anchor bolt; the base wall and the flexible transition layer one are connected by an interface agent; a flexible transition layer two is arranged on the outer side of the thermal insulation board; a crack-resistant mortar glass fiber mesh cloth is arranged on the outer side of the flexible transition layer two; and an external decorative coating is arranged on the outer side of the crack-resistant mortar glass fiber mesh cloth. The present application realizes data driving and intelligent decision-making of the whole life cycle of the external thermal insulation system, and significantly improves the safety, durability and economy of the external wall thermal insulation engineering.

Description

Technical Field

[0001] This invention relates to the field of building exterior wall engineering technology, specifically to an external thermal insulation system with intelligent monitoring function and its construction method. Background Technology

[0002] In recent years, the application of internal wall insulation has gradually decreased due to problems such as condensation and mold growth, and inadequate treatment of thermal bridging in the structure. External wall insulation has gained popularity and become the mainstream construction method in the building insulation field due to its inherent advantages. However, with the large-scale development of external insulation projects, various quality problems have also emerged, including frequent occurrences of cracks, hollow areas, and even cracking and detachment of the external insulation finish, seriously affecting the performance and safety of the insulation system.

[0003] Analysis revealed that the causes of external insulation quality problems covered the entire process of design, materials, and construction. Among them, defects in the structural design of the insulation system, unqualified materials used, and non-standard on-site construction were the main reasons. Since external wall insulation systems are mostly built on-site, the quality of construction directly affects the quality level of the external wall insulation system.

[0004] In addition, the current external wall insulation industry still generally lacks effective intelligent monitoring methods. Key process parameters such as the thickness of the adhesive layer, the installation quality of anchors, and the temperature and humidity environment are difficult to collect and trace in real time throughout the construction process, making it impossible to detect various hidden quality defects in a timely manner. At the same time, during the long-term service of the insulation system, there is also a lack of automated structural health monitoring and early warning mechanisms, making it impossible to dynamically grasp the evolution of hidden dangers such as hollowing and cracking, which greatly restricts the proactive prevention and control of quality problems and technological upgrades. Summary of the Invention

[0005] In view of the existing quality problems of external insulation projects, such as cracks, hollowing, and even cracking and falling off of the external insulation surface layer, as well as the lack of effective intelligent monitoring methods, this invention provides an external insulation system with intelligent monitoring function and its construction method.

[0006] The technical solution of this invention is as follows: In a first aspect, the present invention provides an external thermal insulation system with intelligent monitoring function, including thermal insulation modules; multiple thermal insulation modules are spliced ​​and assembled into a thermal insulation board; sensors are set on the surface of the thermal insulation modules; a flexible transition layer one is set on the inner side of the thermal insulation board; multiple connectors are filled on the edge of the thermal insulation modules; the connectors are formed by the upper half and lower half of the connectors being inserted into each other in a tenon-and-mortise manner; the upper half of the connectors is anchored to the base wall by mechanical anchor bolts; the base wall and the flexible transition layer one are also fully bonded together by an interface agent; a flexible transition layer two is set on the outer side of the thermal insulation board; crack-resistant mortar fiberglass mesh is set on the outer side of the flexible transition layer two; an exterior decorative coating is set on the outer side of the crack-resistant mortar fiberglass mesh; the surface of the thermal insulation module includes an inner surface, an outer surface and four side surfaces; the flexible transition layer is a polystyrene granule mortar with low thermal conductivity and excellent fire resistance, which can effectively reduce the temperature difference between the inside and outside of the thermal insulation board, prevent cracking of the wall decorative coating, and improve service life.

[0007] Furthermore, the sensors include a micro-vibration sensor, a flexible strain sensor, and a temperature and humidity gradient sensor. The micro-vibration sensor is disposed in the middle of the inner surface of the insulation module, the flexible strain sensor is disposed in the middle of the outer surface of the insulation module, and the temperature and humidity gradient sensor is disposed on the side surface of the insulation module. The micro-vibration sensor array, formed by assembling the insulation modules into an insulation board, is used to identify acoustic characteristic changes caused by the formation of voids; the flexible strain sensor array is used to capture strain concentration during microcrack initiation; and the temperature and humidity gradient sensor array is used to diagnose the risk of insulation performance degradation and freeze-thaw damage caused by condensation accumulation.

[0008] Furthermore, the sensors are connected by data wires to form a connected body, and multiple connected bodies form a distributed sensing network of the external insulation system through metal sheet contact connection points. The distributed sensing network is powered by a low-voltage intelligent system, and a low-power wireless transmission module is set up with each floor of the building as the basic unit to aggregate the monitoring data to the monitoring terminal system (cloud platform).

[0009] Furthermore, the filling area formed by the insulation module and the connector is provided with pads and spacers. The pads are rigid composite material pads, and the spacers are elastic spacers. The composite material pads are preferably any one of PVC pads, polyurethane pads, modified PP pads, glass fiber reinforced plastic pads, and cement-based composite pads.

[0010] Furthermore, the connector is made of extruded fiberglass polyurethane profile, and the lengths of the upper and lower halves of the connector are ≥100mm respectively; the connector is required to be made of a material with low thermal conductivity; the quantity and specifications of the connector are usually confirmed by stress calculations of the insulation module that meets the building insulation requirements.

[0011] Furthermore, the insulation module is made of any one of molded polystyrene board, extruded polystyrene board, or reinforced vertical fiber rock wool board. The size of the insulation module can be determined according to the load it is subjected to. Its standard specifications can be customized and processed. Non-reinforced vertical fiber rock wool board can be cut on site.

[0012] Furthermore, the bonding strength of the interface agent (mortar) is ≥0.2MPa. The interface agent material must be determined according to the bonding performance test requirements based on the different materials it contacts. The materials of the first flexible transition layer and the second flexible transition layer are granular mortar made of adhesive powder. The flexible transition material refers to an elastic-plastic material that can reduce the temperature difference between the inside and outside, effectively control the temperature difference range, and its good fire resistance can also play the role of fireproof compartmenting between insulation modules.

[0013] Secondly, the present invention provides a construction method for the aforementioned external insulation system with intelligent monitoring function, comprising the following steps: (1) Base wall treatment, plastering and leveling; (2) Apply interface agent; In order to ensure the adhesion between the insulation module and the base wall, an interface agent must be applied. (3) Wall layout and anchoring: anchor the upper part of the connector to the base wall using mechanical anchor bolts; according to the specifications of the insulation board, make layout and determine the anchoring position of the upper part of the connector. Usually, during implementation, there are no less than 3 upper parts of the connector anchored in the length direction of the positioning frame and no less than 2 upper parts of the connector anchored in the height direction of the positioning frame.

[0014] (4) The edge pads and spacers of the insulation module are covered with adhesive powder polystyrene granule mortar on the inside and pushed into the filling area composed of the connectors; (5) Fasten the lower half of the external T-shaped part of the connector to realize the pressing and fixing of the insulation board. After the installation is completed, a distributed sensor network is formed. (6) At the gaps between the insulation modules, the mortar of polystyrene granules is injected by an automatic material spreading machine to ensure that no through gaps are generated. (7) Apply adhesive powder polystyrene particle mortar to the entire outer side of the insulation board; (8) Crack-resistant mortar fiberglass mesh cloth laying and hanging construction is used to prevent cracking at the joint of the insulation module in the later stage, so as to improve the overall integrity of the module without gaps; (9) Exterior decorative coating application; (10) Distributed sensor network networking: The distributed sensor network is powered by a weak current intelligent system. Each floor of the building is used as a basic unit. Low-power wireless transmission modules are set up to collect monitoring data to the cloud platform. Finally, the structural health diagnosis algorithm is used to automatically assess and grade the integrity status of the external insulation system, so as to realize data-driven and intelligent decision-making throughout the entire life cycle of the building's external insulation structure.

[0015] Furthermore, the base wall is plastered and leveled with a leveling thickness of ≥20mm.

[0016] Furthermore, the upper flange of the connector has a circular hole for passing through a mechanical anchor bolt. The effective anchoring depth of the mechanical anchor bolt is ≥25mm and should be calculated based on the non-plastered surface of the base wall. The number of mechanical anchor bolts and the effective anchoring depth are determined according to the design calculation, and the measured values ​​are obtained by sampling pull-out tests as required. The measured values, after considering the material resistance partial factor, should be at least greater than the design value.

[0017] The beneficial effects of this invention are as follows: 1. The external insulation system with intelligent monitoring function provided by this invention constructs a distributed sensor network and uses structural health diagnosis algorithms to automatically assess and classify the integrity status of the external insulation system, realizing data-driven and intelligent decision-making throughout the entire life cycle of building external insulation structure, and significantly improving the safety, durability and economy of external wall insulation projects.

[0018] 2. Traditional external insulation system construction methods suffer from difficulties in controlling wall flatness, disordered insulation board installation, and extensive on-site cutting. The external insulation system provided by this invention, through the installation of connectors, forms a regular insulation module filling and installation area, achieving orderly pasting and modular installation of insulation modules. Furthermore, the polystyrene granule mortar injected between the board joints cures to form partitions, creating fireproof compartments between the insulation modules and further improving the overall fire resistance of the system.

[0019] 3. The insulation board of the present invention is fully bonded to the base wall through an interface agent, and the insulation board and the base wall are pressed together by the tenon and mortise joint of the connector, which doubles the protection that the insulation board will not fall off; and by setting a flexible transition layer of adhesive polystyrene particle slurry with low thermal conductivity and excellent fire resistance on the inner and outer sides of the insulation board, the temperature difference between the inside and outside of the insulation board can be effectively reduced, deformation can be reduced, cracking of the wall decoration coating can be prevented, and service life can be extended. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the vertical cross-sectional structure of the external insulation system of the present invention.

[0022] Figure 2This is a schematic diagram of the transverse cross-sectional structure of the external insulation system of the present invention.

[0023] Figure 3 This is a schematic diagram of the connector structure.

[0024] Figure 4 This is a three-dimensional schematic diagram of the upper part of the connector.

[0025] Figure 5 This is a structural diagram of the insulation module.

[0026] Figure 6 This is a schematic diagram of the sensor distribution.

[0027] Figure 7 This is a schematic diagram of the positioning of the base wall.

[0028] Figure 8 This is a schematic diagram showing the connection between the base wall and the upper part of the connector.

[0029] Figure 9 This is a schematic diagram of the splicing and assembly of the insulation module.

[0030] Figure 10 This is a schematic diagram showing the connection between the insulation module and the lower half of the connector.

[0031] Figure 11 This is a schematic diagram of the distributed sensor network of the insulation board.

[0032] Figure 12 This is a schematic diagram of a crack-resistant mortar composite fiberglass mesh structure.

[0033] Figure 13 This is a schematic diagram of exterior wall coating construction.

[0034] Figure 14 This is a schematic diagram illustrating the working principle of the external insulation intelligent monitoring system network.

[0035] In the diagram, 1-base wall, 2-interface agent, 3-mechanical anchor, 4-flexible transition layer one, 5-connector, 501-upper part of connector, 501.1-round hole, 502-lower part of connector, 502.1-T-shaped part, 6-pad, 7-insulation module, 8-flexible transition layer two, 9-crack-resistant mortar fiberglass mesh, 10-exterior decorative coating, 11-spacer block, 12-polymer cement mortar, 13-reinforcing mesh, 14-vertical rock wool strip, 15-distributed sensor network, 151-data wire, 152-temperature and humidity gradient sensor, 153-micro-vibration sensor, 154-flexible strain sensor, 155-metal sheet contact connection point, 16-wireless transmission module, 17-monitoring terminal system. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0037] Example This embodiment provides an external insulation system with intelligent monitoring function, such as Figure 1-3 As shown, the device includes an insulation module 7; multiple insulation modules 7 are spliced ​​and assembled into an insulation board; sensors are installed on the surface of the insulation module 7; a flexible transition layer 4 is provided on the inner side of the insulation board; multiple connectors 5 are filled at the edges of the insulation module 7; pads 6 and spacers 11 are provided in the filling area formed by the insulation module 7 and the connectors 5; the pads 6 are rigid PVC pads; the spacers 11 are elastic spacers; the connectors 5 are formed by the upper half 501 and the lower half 502 of the connectors being inserted in a tenon-and-mortise manner; the material of the connectors 5 is extruded glass fiber polyurethane profile. The upper half 501 and the lower half 502 of the connector are each 150mm in length; the upper half 501 of the connector is anchored to the base wall 1 by mechanical anchor bolts; the base wall 1 and the first flexible transition layer 4 are bonded together by an interface agent 2; the interface agent 2 has an adhesion strength of 0.5MPa; a second flexible transition layer 8 is provided on the outside of the insulation board; the materials of the first and second flexible transition layers are granulated polystyrene mortar; a crack-resistant mortar fiberglass mesh 9 is provided on the outside of the second flexible transition layer 8; an exterior decorative coating 10 is provided on the outside of the crack-resistant mortar fiberglass mesh 9.

[0038] like Figure 6 As shown, the sensors include a micro-vibration sensor 153, a flexible strain sensor 154, and a temperature and humidity gradient sensor 152; the micro-vibration sensor 153 is disposed in the middle of the inner surface of the insulation module 7; the flexible strain sensor 154 is disposed in the middle of the outer surface of the insulation module; and the temperature and humidity gradient sensor 152 is disposed on the side surface of the insulation module.

[0039] like Figure 6 As shown, the sensors are connected by data wires 151; multiple connected bodies are connected by metal sheet contact points 155 to form a distributed sensor network 15 for the external insulation system; the distributed sensor network 15 is powered by a low-voltage intelligent system, and each floor of the building is used as a basic unit to set up a low-power wireless transmission module 16 to aggregate the monitoring data to the monitoring terminal system 17.

[0040] like Figure 5As shown, the insulation module 7 is made of reinforced vertical fiber rock wool board, and includes, from the inside out: polymer cement mortar 12, reinforcing mesh 13, and vertical fiber rock wool strips 14.

[0041] The construction method for the aforementioned external insulation system with intelligent monitoring function includes the following steps: (1) Treatment of the base wall 1, plastering and leveling, plastering thickness 25mm; (2) Apply interface agent 2. The interface agent 2 is an emulsion-type interface agent mixed with cement and fine sand in a certain proportion (such as 1:1:1) to form a composite interface mortar, which can not only provide good permeability, but also form a certain mechanical anchoring effect. (3) such as Figure 7 As shown, according to the specifications of the insulation board, use chalk lines to determine the anchoring positions of the upper half 501 of the connector. Typically, during implementation, at least three upper half 501 connectors are anchored along the length of the positioning frame, and at least two upper half 501 connectors are anchored along the height of the positioning frame. Specifically, as... Figure 8 As shown, three upper halves of connectors 501 are anchored along the length of the positioning frame, with adjacent upper halves of connectors 501 spaced 450mm apart and 150mm from the frame line. Two upper halves of connectors 501 are anchored along the height of the positioning frame, with adjacent upper halves of connectors 501 spaced 300mm apart and 150mm from the upper frame line. Figure 4 As shown, the flange portion of the upper half 501 of the connector has a circular hole 105.1 for passing through the mechanical anchor bolt 3, and the effective anchoring depth is calculated to be 20mm based on the non-plastered surface of the base wall. (4) Assembly of insulation modules: such as Figure 9 As shown, the edge of the insulation module 7 has adhesive pads 6 and spacers 11, and the inner side is covered with adhesive powder polystyrene particle mortar, which is pushed into the filling area composed of connectors 5. (5) such as Figure 10 As shown, the lower half of the fastener 502 and the outer T-shaped part 502.1 are fastened together to press and fix the insulation board into place. After installation, it forms a shape as shown. Figure 11 The distributed sensor network 15 shown; (6) For example Figure 2 As shown, at the gaps between the 7 insulation modules, the mortar of polystyrene granules is injected by an automatic material spreading machine to ensure that no through gaps are formed. (7) Apply adhesive powder polystyrene particle mortar to the entire outer side of the insulation board; (8) such as Figure 12 The crack-resistant mortar fiberglass mesh 9 shown is used to prevent cracking at the joints of the insulation module 7 later. (9) For example Figure 13 As shown, exterior decorative coating 10 is applied; (10) Distributed sensor network 15-group networking: such as Figure 14 As shown, the distributed sensor network 15 is powered by a low-voltage intelligent system. With each floor of the building as the basic unit, a low-power wireless transmission module 16 is set up to collect the monitoring data to the monitoring terminal system 17. Finally, the integrity status of the external insulation system is automatically assessed and graded for early warning using a structural health diagnosis algorithm.

[0042] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention.

Claims

1. An external insulation system with intelligent monitoring function, comprising insulation modules, wherein multiple insulation modules are spliced ​​and assembled into an insulation panel, characterized in that, Sensors are installed on the surface of the insulation module; a flexible transition layer one is provided on the inner side of the insulation board; multiple connectors are filled on the edge of the insulation module; the connectors are formed by the upper and lower halves of the connectors being inserted together in a tenon-and-mortise manner; the upper halves of the connectors are anchored to the base wall by mechanical anchor bolts; the base wall and the flexible transition layer one are also fully bonded together by an interface agent; a flexible transition layer two is provided on the outer side of the insulation board; crack-resistant mortar fiberglass mesh is provided on the outer side of the flexible transition layer two; and an exterior decorative coating is provided on the outer side of the crack-resistant mortar fiberglass mesh.

2. The external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The sensors include a micro-vibration sensor, a flexible strain sensor, and a temperature and humidity gradient sensor; the micro-vibration sensor is disposed in the middle of the inner surface of the insulation module; the flexible strain sensor is disposed in the middle of the outer surface of the insulation module; and the temperature and humidity gradient sensor is disposed on the side surface of the insulation module.

3. The external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The sensors are connected by data wires to form a connected body; multiple connected bodies form a distributed sensing network of the external insulation system through metal sheet contact connection points; the distributed sensing network is powered by a low-voltage intelligent system, and each floor of the building is used as a basic unit to set up a low-power wireless transmission module to aggregate monitoring data to the monitoring terminal system.

4. The external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The filling area formed by the edge of the insulation module and the connector is provided with pads and spacers; the pads are rigid composite material pads; the spacers are elastic spacers.

5. An external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The connector is made of extruded glass fiber polyurethane profile; the lengths of the upper half and the lower half of the connector are ≥100mm respectively.

6. An external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The insulation module is made of any one of molded polystyrene board, extruded polystyrene board, or reinforced vertical fiber rock wool board.

7. An external insulation system with intelligent monitoring function as described in claim 1, characterized in that, The bonding strength of the interface agent is ≥0.2MPa; the materials of the first flexible transition layer and the second flexible transition layer are granular polystyrene slurry.

8. A construction method for an external thermal insulation system with intelligent monitoring function as described in any one of claims 1 to 7, characterized in that, Includes the following steps: (1) Base wall treatment, plastering and leveling; (2) Apply interface agent by brushing; (3) Mark the base wall with a chalk line and anchor the upper part of the connector to the base wall with mechanical anchor bolts; (4) The edge pads and spacers of the insulation module are covered with adhesive powder polystyrene granule mortar on the inside and pushed into the filling area composed of the connectors; (5) Connect the lower half of the external T-shaped part of the fastener, press and install the insulation board in place, and a distributed sensor network is formed after installation. (6) At the gaps between the insulation modules, the mortar of polystyrene granules is injected by an automatic material spreading machine; (7) Apply adhesive powder polystyrene particle mortar to the entire outer side of the insulation board; (8) Construction of crack-resistant mortar fiberglass mesh cloth laying and hanging mesh; (9) Exterior decorative coating application; (10) Distributed sensor network networking.

9. The construction method as described in claim 8, characterized in that, In step (1), the thickness of the plastering and leveling is ≥20mm.

10. The construction method as described in claim 8, characterized in that, In step (3), the flange portion of the upper half of the connector has a circular hole for the mechanical anchor bolt to pass through; the effective anchoring depth of the mechanical anchor bolt is ≥25mm.

Images