Waterproof and heat preservation construction method for building water supply and drainage and heating engineering

Abstract

The invention discloses a waterproof and thermal insulation construction method for building water supply and drainage and heating engineering, which comprises the following steps: S1, constructing a three-dimensional model of a pipeline line by using a BIM technology, and remarking pipeline nodes and pipeline parameters of the pipeline line; s2, an automatic pipeline prefabrication production line is established, and a pipeline is cut and prepared based on pipeline parameters in the three-dimensional model; s3, based on the pipeline lines and the pipeline nodes, the pipelines are installed at the building through the laser ranging technology and the positioning drilling technology, and the pipeline nodes are sequentially connected with the pipelines through transition connectors; s4, constructing an intelligent water pressure module and an intelligent temperature control module based on pipeline nodes and pipeline parameters, and dynamically regulating and controlling the water pressure and water temperature in the pipeline by adopting a cloud platform and a big data technology; by comprehensively considering various key elements influencing normal use of the pipeline, the problem of water pipe breakage caused by too high water pressure is effectively avoided, and then the occurrence risk of water leakage events is remarkably reduced.

Description

Technical Field

[0001] The invention relates to a pipeline construction technology for building water supply and drainage and heating engineering, and in particular to a waterproof and heat-insulating construction method for building water supply and drainage and heating engineering. Background Art

[0002] In modern buildings, the quality of water supply, drainage and heating installation projects is particularly important. It not only affects the daily use and comfort of residents, but also has a profound impact on the service life of buildings. With the vigorous development of the national economy and the improvement of people's living standards, the scale and function of buildings are constantly expanding, and the quality requirements for water supply, drainage and heating installation projects are becoming more and more stringent.

[0003] Among them, waterproofing and thermal insulation construction is one of the key links in building water supply, drainage and heating engineering. The quality of waterproofing construction is directly related to the anti-leakage performance of the building. Once the waterproof layer is damaged or leaking, it will bring great inconvenience to the lives of residents and may even cause safety hazards. Thermal insulation construction is of great significance to improving the energy efficiency of buildings and reducing energy consumption. Good thermal insulation performance can effectively reduce energy waste, reduce operating costs, and improve the comfort of the living environment.

[0004] The design of existing building water supply, drainage and heating pipelines often relies on manual drawing and empirical judgment, which leads to low design efficiency and error-prone design. At the same time, the water pressure and water temperature control in the existing building water supply, drainage and heating pipelines are usually manually adjusted, which cannot be dynamically adjusted according to actual needs, resulting in energy waste and unstable system operation.

[0005] Therefore, there is an urgent need for a waterproof and thermal insulation construction method for building water supply and drainage and heating engineering to solve the technical problems existing in the above-mentioned prior art. Summary of the invention

[0006] The invention overcomes the shortcomings of the prior art and provides a waterproof and thermal insulation construction method for building water supply and drainage and heating engineering.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a waterproof and thermal insulation construction method for building water supply and drainage and heating engineering, comprising the following steps: S1. Use BIM technology to build a three-dimensional model of the pipeline line, conduct collaborative design of the pipeline nodes, pipeline parameters and waterproof insulation layer structure of the pipeline line, establish a defect prediction model in the three-dimensional model, mark the risk area in real time, and generate alternative design solutions based on cost / performance constraints; S2. Establish an automated pipeline prefabrication production line. Based on the pipeline parameters in the three-dimensional model, composite processing equipment is used to simultaneously complete pipeline cutting, waterproof coating spraying and insulation material pre-wrapping to form an integrated waterproof and thermal insulation pipeline unit; S3. Based on pipeline lines and pipeline nodes, the integrated pipeline unit is installed in the building structure layer using laser ranging technology and positioning drilling technology. The pipeline nodes are connected through double-sealed transition interfaces, with waterproof rubber rings embedded in the interfaces and filled with flame-retardant thermal insulation foam materials. S4. Build an intelligent water pressure module and intelligent temperature control module based on pipeline nodes and pipeline parameters. Through cloud platform and big data technology, combined with the real-time temperature field distribution and water pressure fluctuation data of pipelines, dynamically adjust the water pump power, valve opening and operating parameters of the heating device; build an energy consumption monitoring module based on the dynamic changes of water temperature and water pressure in the pipeline to locate the energy waste links in the pipeline line in real time; S5. An expansion water tank is installed at the highest point of the pipeline line, and a water collection device is configured at the lowest point. A closed loop is formed through a circulating water pump and a manifold, thereby realizing temperature stratification circulation in the waterproof and heat-insulating pipeline.

[0008] In a preferred embodiment of the present invention, the defect prediction model uses a machine learning algorithm to analyze historical construction data and mark risk areas in real time in the three-dimensional model; the formula expression of the defect prediction model is: , In the formula, is the probability that the output pipeline has defects, and its value range is ;when When ≥0.5, the pipeline is considered to be defective; when When it is 0.5, the pipeline is considered normal; is the bias parameter, which is used to adjust the prediction results of the model; is the weight coefficient of the first input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The first factor affecting pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement. is the weight coefficient of the second input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The second factor that affects pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement; is the weight coefficient of the nth input variable, which is used to reflect the influence of the variable on the probability of pipeline defects; The nth factor that affects pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement. The input variables are the pipeline nodes, pipeline parameters, and changes in the waterproof and thermal insulation layer structure of the pipeline line.

[0009] In a preferred embodiment of the present invention, a pressure regulating valve and a temperature sensor are installed at the transition interface, the pressure regulating valve is connected to the intelligent water pressure module via an electrical signal, the temperature sensor is connected to the intelligent temperature control module via an electrical signal, and the intelligent water pressure module and the intelligent temperature control module are integrated in the same electronic device; an RFID tag is provided at each of the pipelines, and the pipeline parameters of the individual pipelines are stored in the corresponding RFID tags, and the pipeline parameters include: pipeline length, pipe mouth diameter, pipeline material, and pipeline shape.

[0010] In a preferred embodiment of the present invention, the working process of the intelligent water pressure module includes: A1. Obtain pipeline parameters of multiple pipelines at the transition interface; A2. Calculate the maximum water pressure value that the pipeline can withstand based on the obtained pipeline parameters, and then calculate the target water pressure value required for each pipeline node based on the preset water pressure control strategy; A3. Monitor the actual water pressure at the transition interface in real time and compare it with the target water pressure value; A4. When the actual water pressure is lower than the target water pressure value, the pressure regulating valve is opened or the opening is increased through the electric signal to increase the water pressure; when the actual water pressure is higher than the target water pressure value, the pressure regulating valve is closed or the opening is reduced through the electric signal to reduce the water pressure.

[0011] In a preferred embodiment of the present invention, the calculation expression of the maximum water pressure value that the pipeline can withstand is: , In the formula, Indicates the maximum water pressure value that the pipeline can withstand; It represents the comprehensive coefficient, which is used to consider the factors affecting the pipeline installation method and the surrounding environment; Indicates the tensile strength coefficient of the pipeline material at temperature T; Indicates based on the pipe nozzle diameter and the cross-sectional area of ​​the pipe The shape factor of Indicates based on the pipe length and the fluid resistance in the pipe The coefficient of Represents a pipeline-based material and aging The coefficient of Indicates the diameter of the pipe mouth; Indicates the length of the pipeline; represents the time decay coefficient based on the pipeline usage time t; Indicates the fluid pressure in the pipe The fluctuation amplitude of ; t represents the pipeline usage time; represents the time constant used to describe the effects of pipeline aging; represents the pipeline service time t and pipeline aging effect Factors affecting the pressure bearing capacity of pipelines.

[0012] In a preferred embodiment of the present invention, the water pressure control strategy calculates the target water pressure value required for each pipeline node based on the maximum water pressure value that the pipeline can withstand. The calculation expression of the water pressure control strategy is: , In the formula, represents the target water pressure value required for the i-th pipeline node; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the water pressure control coefficient of the i-th pipeline node.

[0013] In a preferred embodiment of the present invention, the water pressure control coefficient The calculation expression for obtaining is: , In the formula, represents the actual water pressure demand of the i-th pipeline node; Represents the water pressure safety threshold of the i-th pipeline node: Pa; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the efficiency factor, which is used to adjust the water pressure control strategy to optimize the operating efficiency of the pipeline line.

[0014] In a preferred embodiment of the present invention, the working process of the intelligent temperature control module includes: B1. Obtaining pipeline parameters of multiple pipelines at the transition interface and water temperature data measured in real time by temperature sensors; B2. Calculate the target water temperature value required for each pipeline node based on the obtained pipeline parameters and water temperature data and the preset temperature control strategy. In this process, the adaptability of the pipeline material to temperature changes, the heat loss of the fluid in the pipeline, and the energy efficiency requirements of the pipeline line need to be considered; B3. Monitor the actual water temperature at the transition interface in real time and compare it with the target water temperature value; when the actual water temperature is lower than the target water temperature value, control the heating device to start or increase the heating power through the intelligent temperature control module to increase the water temperature; when the actual water temperature is higher than the target water temperature value, control the heating device to reduce the heating power or shut down.

[0015] In a preferred embodiment of the present invention, the calculation expression of the temperature control strategy is: , In the formula, represents the target water temperature value required for the i-th pipeline node; Indicates the external environment temperature; It represents the temperature value required to compensate for the fluid heat loss at the i-th pipeline node; Indicates the adaptability coefficient of the material of the i-th pipeline node to temperature changes; represents the actual water temperature demand of the i-th pipeline node; It represents the energy efficiency coefficient of the pipeline line, which is used to adjust the target water temperature value to optimize the energy efficiency of the pipeline line.

[0016] In a preferred embodiment of the present invention, a pipeline construction method for building water supply, drainage and heating engineering is provided, based on the above-mentioned waterproof and thermal insulation construction method for building water supply, drainage and heating engineering, comprising: a water supply pipeline, a transition interface, a pressure regulating valve, a temperature sensor, a heater, an expansion water tank, a gas collecting tank, a radiator, a return pipe and a circulating water pump; The water supply pipeline includes a water supply main, a water supply trunk, a water supply riser, a water return main and a water return riser; the water supply main, the water supply trunk and the water supply riser are connected in sequence, and the gas collecting tank and the radiator are both installed at the water supply riser; the expansion water tank is located at the highest point of the pipeline line and is connected to the water supply trunk and the water return trunk; The water return riser is connected to the radiator, and the water return riser is connected to the water return main pipe; The return water main is connected to the circulating water pump, the circulating water pump is connected to the input end of the heater, and the output end of the heater is connected to the water supply main; The transition interface is installed at the connection node of the water supply pipeline, and the pressure regulating valve and the temperature sensor are both installed at the transition interface.

[0017] The present invention solves the defects existing in the background technology and has the following beneficial effects: (1) The present invention calculates the maximum water pressure value that the pipeline can withstand by comprehensively considering multiple key factors such as pipeline installation method, surrounding environmental conditions, pipeline material characteristics, aging coefficient, shape coefficient, length factor, and fluid resistance coefficient. Based on the maximum water pressure value, intelligent and refined regulation of the water pressure in the pipeline is achieved, thereby effectively avoiding the problem of water pipe rupture caused by excessive water pressure, and significantly reducing the risk of water leakage.

[0018] (2) The present invention calculates the target water temperature value required for each pipeline node based on factors such as pipeline parameters, water temperature data, and external ambient temperature. By controlling the power of the heating equipment, the intelligent temperature control module can achieve precise control of the water temperature, thereby ensuring that the water temperature in the pipeline line is always maintained within the required range, thereby helping to reduce the risk of pipeline freezing and cracking due to low water temperature, and also improving heating efficiency.

[0019] (3) By setting up an energy consumption monitoring module, the pressure regulating valve and the intelligent water pressure module can work together to achieve intelligent management of the system. By real-time monitoring and analysis of system data, the pressure regulating valve can automatically adjust its working state to ensure that the system always operates in the best state, thereby maximizing the water-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 is a pipeline diagram of a preferred embodiment of the present invention; Figure 2 is a flow chart of a construction method of a preferred embodiment of the present invention; Figure 3 is a flow chart of the working process of the intelligent water pressure module of the preferred embodiment of the present invention; Figure 4 is a flow chart of the working process of the intelligent temperature control module of the preferred embodiment of the present invention; Figure 5 is a schematic diagram of the transition interface structure of a preferred embodiment of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the transition interface of the preferred embodiment of the present invention.

[0021] In the figure, 1. transition interface; 2. pressure regulating valve; 3. flange interface; 4. water inlet; 5. water outlet; 6. heating wire; 7. temperature sensor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0026] Prior to this, it should be noted that the purpose of installing a transition interface at the node of the pipeline line and setting an intelligent water pressure module and an intelligent temperature control module at the transition interface in this technical solution is: when two pipes of different thicknesses are connected to each other, if only the pressure in the two pipes is kept consistent, due to the relationship between flow rate, flow velocity and pipe cross-sectional area, the thinner pipe may cause excessive pressure due to excessive flow velocity, thereby causing the risk of pipe explosion.

[0027] Therefore, the present solution installs a transition interface at the pipeline node or the connection between the thick pipe and the thin pipe to reduce the pressure of the fluid flowing into the thin pipe. In addition, the transition interface can also adjust the outlet pressure as needed to keep the pressure in the thin pipe within a safe range.

[0028] like Figure 1 As shown, a pipeline line design diagram for building water supply, drainage and heating engineering is provided, including: water supply pipeline, transition interface, pressure regulating valve, temperature sensor, heater, expansion water tank, gas collecting tank, radiator, return pipe and circulating water pump; The water supply pipeline includes a water supply main, a water supply trunk, a water supply riser, a water return main and a water return riser; the water supply main, the water supply trunk and the water supply riser are connected in sequence, and the gas collecting tank and the radiator are installed at the water supply riser; the expansion water tank is located at the highest point of the pipeline line and is connected to the water supply trunk and the water return trunk; The return water riser is connected to the radiator, and the return water riser is connected to the return water main pipe; The return water main is connected to the circulating water pump, the circulating water pump is connected to the input end of the heater, and the output end of the heater is connected to the water supply main; The transition interface is installed at the connection node of the water supply pipeline, and the pressure regulating valve and temperature sensor are both installed at the transition interface.

[0029] like Figure 2 As shown, based on the above pipeline line, a waterproof and thermal insulation construction method for building water supply and drainage and heating engineering is proposed, comprising the following steps: S1. Use BIM technology to build a three-dimensional model of the pipeline line, conduct collaborative design of the pipeline nodes, pipeline parameters and waterproof insulation layer structure of the pipeline line, establish a defect prediction model in the three-dimensional model, mark the risk area in real time, and generate alternative design solutions based on cost / performance constraints; Furthermore, the defect prediction model uses a machine learning algorithm to analyze historical construction data and mark risk areas in real time in the 3D model; the formula expression of the defect prediction model is: , In the formula, is the probability that the output pipeline has defects, and its value range is ;when When ≥0.5, the pipeline is considered to be defective; when When it is 0.5, the pipeline is considered normal; is the bias parameter, which is used to adjust the prediction results of the model; is the weight coefficient of the first input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The first factor affecting pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement. is the weight coefficient of the second input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The second factor that affects pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement; is the weight coefficient of the nth input variable, which is used to reflect the influence of the variable on the probability of pipeline defects; As the nth factor affecting pipeline defects, the factors can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement.

[0030] S2. Establish an automated pipeline prefabrication production line. Based on the pipeline parameters in the three-dimensional model, composite processing equipment is used to simultaneously complete pipeline cutting, waterproof coating spraying and insulation material pre-wrapping to form an integrated waterproof and thermal insulation pipeline unit; S3. Based on pipeline lines and pipeline nodes, the integrated pipeline unit is installed in the building structure layer using laser ranging technology and positioning drilling technology. The pipeline nodes are connected through double-sealed transition interfaces, with waterproof rubber rings embedded in the interfaces and filled with flame-retardant thermal insulation foam materials. S4. Build an intelligent water pressure module and intelligent temperature control module based on pipeline nodes and pipeline parameters. Through cloud platform and big data technology, combined with the real-time temperature field distribution and water pressure fluctuation data of pipelines, dynamically adjust the water pump power, valve opening and operating parameters of the heating device; build an energy consumption monitoring module based on the dynamic changes of water temperature and water pressure in the pipeline to locate the energy waste links in the pipeline line in real time; Furthermore, the monitoring process of the energy consumption monitoring module includes: deploying fiber grating temperature sensors at pipeline nodes, manifolds, and radiator inlets; using pressure sensors to synchronously collect node pressures, and calculating local resistance coefficients in combination with ultrasonic flow meters; installing electromagnetic flow meters at manifolds, calculating instantaneous flow rates by integrating pulse output signals, and establishing a water use baseline model; integrating capacitive humidity sensors at the water collection device at the lowest point of the pipeline, and warning of leaks by detecting changes in dielectric constants caused by abnormal water seepage.

[0031] S5. An expansion water tank is installed at the highest point of the pipeline line, and a water collection device is configured at the lowest point. A closed loop is formed through a circulating water pump and a manifold, thereby realizing temperature stratification circulation in the waterproof and heat-insulating pipeline.

[0032] A pressure regulating valve and a temperature sensor are installed at the transition interface. The pressure regulating valve is connected to the intelligent water pressure module through electrical signals. The temperature sensor is connected to the intelligent temperature control module through electrical signals. The intelligent water pressure module and the intelligent temperature control module are integrated in the same electronic device.

[0033] An RFID tag is provided at each individual pipeline, and the pipeline parameters of the individual pipeline are stored in the corresponding RFID tag. The pipeline parameters include: pipeline length, pipe opening diameter, pipeline material, and pipeline shape.

[0034] like Figure 3 As shown, the working process of the intelligent water pressure module includes: A1. Obtain pipeline parameters of multiple pipelines at the transition interface; A2. Calculate the maximum water pressure value that the pipeline can withstand based on the obtained pipeline parameters, and then calculate the target water pressure value required for each pipeline node based on the preset water pressure control strategy; Specifically, the calculation expression for the maximum water pressure value that the pipeline can withstand is: , In the formula, Indicates the maximum water pressure value that the pipeline can withstand; It represents the comprehensive coefficient, which is used to consider the factors affecting the pipeline installation method and the surrounding environment; Indicates the tensile strength coefficient of the pipeline material at temperature T; Indicates based on the pipe nozzle diameter and the cross-sectional area of ​​the pipe The shape factor of Indicates based on the pipe length and the fluid resistance in the pipe The coefficient of Represents a pipeline-based material and aging The coefficient of Indicates the diameter of the pipe mouth; Indicates the length of the pipeline; represents the time decay coefficient based on the pipeline usage time t; Indicates the fluid pressure in the pipe The fluctuation amplitude of ; t represents the pipeline usage time; represents the time constant used to describe the effects of pipeline aging; represents the pipeline service time t and pipeline aging effect Factors affecting the pressure bearing capacity of pipelines.

[0035] The water pressure control strategy calculates the target water pressure value required for each pipeline node based on the maximum water pressure value that the pipeline can withstand. The calculation expression of the water pressure control strategy is: , In the formula, represents the target water pressure value required for the i-th pipeline node; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the water pressure control coefficient of the i-th pipeline node.

[0036] Water pressure control coefficient The calculation expression for obtaining is: , In the formula, represents the actual water pressure demand of the i-th pipeline node; represents the water pressure safety threshold of the i-th pipeline node; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the efficiency factor, which is used to adjust the water pressure control strategy to optimize the operating efficiency of the pipeline line.

[0037] A3. Monitor the actual water pressure at the transition interface in real time and compare it with the target water pressure value; A4. When the actual water pressure is lower than the target water pressure value, the pressure regulating valve is opened or the opening is increased through the electric signal to increase the water pressure; when the actual water pressure is higher than the target water pressure value, the pressure regulating valve is closed or the opening is reduced through the electric signal to reduce the water pressure.

[0038] Furthermore, the intelligent water pressure module continuously monitors and adjusts the water pressure to ensure that the water pressure in the pipeline remains within the set range to meet the normal operation requirements of the water supply, drainage and heating systems; at the same time, the real-time monitored water pressure data and the working status of the pressure regulating valve are uploaded to the cloud platform for data storage and analysis, providing data support for subsequent system optimization and maintenance.

[0039] In this embodiment, the intelligent water pressure module obtains the pipeline parameters of multiple pipelines at the transition interface and calculates the target water pressure value required for each pipeline node in combination with the preset water pressure control strategy. The water pressure control strategy takes into account multiple factors such as pipeline material, shape, length, fluid resistance, and usage time to ensure the accuracy and reliability of the target water pressure value.

[0040] The water pressure control coefficient is dynamically adjusted according to the actual water pressure demand, water pressure safety threshold and maximum water pressure value, so that the system can meet the actual needs to the greatest extent while ensuring safety.

[0041] like Figure 4 As shown in the figure, the working process of the intelligent temperature control module includes: B1. Obtaining pipeline parameters of multiple pipelines at the transition interface and water temperature data measured in real time by temperature sensors; B2. Calculate the target water temperature value required for each pipeline node based on the obtained pipeline parameters and water temperature data and the preset temperature control strategy. In this process, the adaptability of the pipeline material to temperature changes, the heat loss of the fluid in the pipeline, and the energy efficiency requirements of the pipeline line need to be considered; Specifically, the calculation expression of the temperature control strategy is: , In the formula, represents the target water temperature value required for the i-th pipeline node; Indicates the external environment temperature; It represents the temperature value required to compensate for the fluid heat loss at the i-th pipeline node; Indicates the adaptability coefficient of the material of the i-th pipeline node to temperature changes; represents the actual water temperature demand of the i-th pipeline node; It represents the energy efficiency coefficient of the pipeline line, which is used to adjust the target water temperature value to optimize the energy efficiency of the pipeline line.

[0042] B3. Monitor the actual water temperature at the transition interface in real time and compare it with the target water temperature value; when the actual water temperature is lower than the target water temperature value, control the heating device to start or increase the heating power through the intelligent temperature control module to increase the water temperature; when the actual water temperature is higher than the target water temperature value, control the heating device to reduce the heating power or shut down.

[0043] like Figure 5 and Figure 6 As shown, a pressure regulating valve 2 is provided at the transition interface 1, and the water pressure in the water supply pipe is regulated by controlling the height of the pressure regulating valve 2; a water inlet 4 and a water outlet 5 are respectively provided at both ends of the transition interface 1, and flange interfaces 3 are provided at the ends of the water inlet 4 and the water outlet 5.

[0044] The water inlet 4 and the water outlet 5 are both designed to be high at one end and low at the other end; and the lower end of the water inlet 4 is close to the higher end of the water outlet 5.

[0045] A heating wire 6 is provided in both the water inlet 4 and the water outlet 5. The water temperature in the water supply pipe can be regulated by adjusting the working power of the heating wire 6.

[0046] A temperature sensor 7 for real-time monitoring of water temperature changes is also provided in the transition interface 1. The temperature sensor 7 sends the monitored water temperature data to the intelligent temperature control module. The intelligent control module remotely controls the working power of the heating wire 6 based on the changes in the water temperature data to achieve water temperature changes.

[0047] In addition, the pressure regulating valve 2 works in conjunction with the intelligent water pressure module to achieve intelligent management of the system. By real-time monitoring and analysis of system data, the valve can automatically adjust the working state to ensure that the system always operates in the best state, thereby maximizing the water-saving effect.

[0048] The intelligent temperature control module obtains the pipeline parameters of multiple pipelines at the transition interface and the water temperature data measured in real time by the temperature sensor, and combines the preset temperature control strategy to calculate the target water temperature value required for each pipeline node. The temperature control strategy comprehensively considers multiple factors such as external environment temperature, fluid heat loss, material adaptability, actual water temperature requirements and energy efficiency of pipeline lines, ensuring the rationality and feasibility of the target water temperature value.

[0049] By adjusting the target water temperature value to optimize the energy efficiency of the pipeline line, the system can maximize energy savings while ensuring performance.

[0050] In a preferred embodiment, the intelligent temperature control module also includes an adaptive learning algorithm, which dynamically adjusts the temperature control strategy according to historical water temperature data, changes in external ambient temperature, user usage habits and other factors to achieve more accurate and efficient temperature control, while reducing energy waste and improving the overall energy-saving performance of the system.

[0051] This technical solution is applicable to various types of buildings, such as residential buildings, commercial buildings, industrial plants, etc. In different application scenarios. For example, in residential areas, the system can improve living comfort and reduce energy waste; in commercial buildings, the system can ensure the stability and reliability of the system and improve operational efficiency; in industrial plants, the system can meet complex process requirements and improve production efficiency.

[0052] In addition, this technical solution also has significant energy-saving and environmental protection effects. By intelligently regulating water pressure and water temperature, the system can save energy to the maximum extent and reduce carbon emissions. At the same time, the system also adopts advanced automation and intelligent technology to improve construction efficiency and maintenance convenience, and reduce labor costs and time costs.

[0053] It is necessary to add that the following pressure regulating valves and temperature sensors are available for the above technical solutions: V230 / 231 series self-operated pressure regulating valve: no external energy is required, it relies on the pressure change of the medium itself for automatic regulation, energy-saving products. It can be used as a pressure control device for non-corrosive liquids, gases, steam and other media. It is suitable for various pipelines that need automatic pressure regulation, such as pressure regulation in building water supply and drainage and heating projects.

[0054] GESTRA 5801 self-operated pressure regulating valve: no external energy required, fast response, high-precision control, safe and reliable, easy to maintain. Widely used in petroleum, chemical, electric power, metallurgy and other industrial fields. Maximum working pressure 320 bar, control accuracy ±0.2%, response time ≤10 seconds, working temperature range -20~+250℃. Suitable for pipelines with high pressure control accuracy requirements, such as key pressure regulation points in building water supply and drainage and heating projects.

[0055] ZZY self-operated pressure regulating valve: adopts quick-opening flow characteristics, sensitive action, high regulation accuracy (error ≤ 10%). There are various valve trim forms, valve cover types and actuator types to choose from to meet the needs of different process occasions. It is suitable for various pipelines that need to automatically adjust the pressure, such as building water supply and drainage and heating projects with different flow and pressure requirements.

[0056] Platinum resistance temperature sensor (such as PT100): designed and manufactured based on the basic principle that the resistance value of platinum wire changes with temperature, with a wide temperature measurement range (-200~850℃), high accuracy and good stability. Suitable for pipelines that require accurate measurement and control of water temperature, such as water temperature monitoring and control in building water supply and drainage and heating projects.

[0057] NTC temperature sensor: negative temperature coefficient thermistor, the resistance increases as the temperature decreases, wide temperature measurement range (about -50~200℃), high sensitivity, small size, fast response time, low price. It is suitable for pipeline lines that do not require high temperature measurement accuracy but require fast response, such as preliminary water temperature monitoring and early warning in building water supply and drainage and heating projects.

[0058] Digital infrared temperature sensor (such as MLX90614): It can measure the surface temperature of an object without contact, with a wide measurement range (-70~380℃), and can communicate with the microcontroller through the I2C interface to achieve remote monitoring and data collection. It is suitable for pipelines that are difficult to directly contact or require remote monitoring of water temperature, such as water temperature measurement of water tanks, pipe outer walls, etc. in building water supply and drainage and heating projects.

[0059] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering, characterized in that: The following steps are involved: S1. Use BIM technology to build a three-dimensional model of the pipeline line, conduct collaborative design of the pipeline nodes, pipeline parameters and waterproof insulation layer structure of the pipeline line, establish a defect prediction model in the three-dimensional model, mark the risk area in real time, and generate alternative design solutions based on cost / performance constraints; S2. Establish an automated pipeline prefabrication production line. Based on the pipeline parameters in the three-dimensional model, composite processing equipment is used to simultaneously complete pipeline cutting, waterproof coating spraying and insulation material pre-wrapping to form an integrated waterproof and thermal insulation pipeline unit; S3. Based on pipeline lines and pipeline nodes, the integrated pipeline unit is installed in the building structure layer using laser ranging technology and positioning drilling technology. The pipeline nodes are connected through double-sealed transition interfaces, with waterproof rubber rings embedded in the interfaces and filled with flame-retardant thermal insulation foam materials. S4. Build an intelligent water pressure module and intelligent temperature control module based on pipeline nodes and pipeline parameters. Through cloud platform and big data technology, combined with the real-time temperature field distribution and water pressure fluctuation data of pipelines, dynamically adjust the water pump power, valve opening and operating parameters of the heating device; build an energy consumption monitoring module based on the dynamic changes of water temperature and water pressure in the pipeline to locate the energy waste links in the pipeline line in real time; S5. An expansion water tank is installed at the highest point of the pipeline line, and a water collection device is configured at the lowest point. A closed loop is formed through a circulating water pump and a manifold, thereby realizing temperature stratification circulation in the waterproof and heat-insulating pipeline.

2. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 1, characterized in that: The defect prediction model uses a machine learning algorithm to analyze historical construction data and annotate risk areas in the three-dimensional model in real time; The formula expression of the defect prediction model is: ， In the formula, is the probability that the output pipeline has defects, and its value range is ;when When ≥0.5, the pipeline is considered to be defective; when When it is 0.5, the pipeline is considered normal; is the bias parameter, which is used to adjust the prediction results of the model; is the weight coefficient of the first input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The first factor affecting pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement. is the weight coefficient of the second input variable, which is used to reflect the influence of this variable on the probability of pipeline defects; The second factor that affects pipeline defects can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement; is the weight coefficient of the nth input variable, which is used to reflect the influence of the variable on the probability of pipeline defects; As the nth factor affecting pipeline defects, the factors can be internal factors such as pipeline material, age, length, and diameter, or external factors such as burial depth, environmental properties, and pipeline arrangement.

3. The waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 1, characterized in that: A pressure regulating valve and a temperature sensor are installed at the transition interface, the pressure regulating valve is connected to the intelligent water pressure module through electrical signals, the temperature sensor is connected to the intelligent temperature control module through electrical signals, the intelligent water pressure module and the intelligent temperature control module are integrated in the same electronic device, and an RFID tag is provided at each of the pipelines, and the pipeline parameters of each of the pipelines are stored in the corresponding RFID tag, and the pipeline parameters include: pipeline length, pipe mouth diameter, pipeline material, and pipeline shape.

4. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 3, characterized in that: The working process of the intelligent water pressure module includes: A1. Obtain pipeline parameters of multiple pipelines at the transition interface; A2. Calculate the maximum water pressure value that the pipeline can withstand based on the obtained pipeline parameters, and then calculate the target water pressure value required for each pipeline node based on the preset water pressure control strategy; A3. Monitor the actual water pressure at the transition interface in real time and compare it with the target water pressure value; A4. When the actual water pressure is lower than the target water pressure value, the pressure regulating valve is opened or the opening is increased through the electric signal to increase the water pressure; when the actual water pressure is higher than the target water pressure value, the pressure regulating valve is closed or the opening is reduced through the electric signal to reduce the water pressure.

5. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 4, characterized in that: The calculation expression of the maximum water pressure value that the pipeline can withstand is: ， In the formula, Indicates the maximum water pressure value that the pipeline can withstand; It represents the comprehensive coefficient, which is used to consider the factors affecting the pipeline installation method and the surrounding environment; Indicates the tensile strength coefficient of the pipeline material at temperature T; Indicates based on the pipe nozzle diameter and the cross-sectional area of ​​the pipe The shape factor of Indicates based on the pipe length and the fluid resistance in the pipe The coefficient of Represents a pipeline-based material and aging The coefficient of Indicates the diameter of the pipe mouth; Indicates the length of the pipeline; represents the time decay coefficient based on the pipeline usage time t; Indicates the fluid pressure in the pipe The fluctuation amplitude of t represents the pipeline usage time; represents the time constant used to describe the effects of pipeline aging; represents the pipeline service time t and pipeline aging effect Factors affecting the pressure bearing capacity of pipelines.

6. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 5, characterized in that: The water pressure control strategy calculates the target water pressure value required for each pipeline node based on the maximum water pressure value that the pipeline can withstand. The calculation expression of the water pressure control strategy is: ， In the formula, represents the target water pressure value required for the i-th pipeline node; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the water pressure control coefficient of the i-th pipeline node.

7. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 6, characterized in that: The water pressure control coefficient The calculation expression for obtaining is: ， In the formula, represents the actual water pressure demand of the i-th pipeline node; represents the water pressure safety threshold of the i-th pipeline node; It represents the maximum water pressure value that the i-th pipeline node can withstand; Represents the efficiency factor, which is used to adjust the water pressure control strategy to optimize the operating efficiency of the pipeline line.

8. The waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 3, characterized in that: The working process of the intelligent temperature control module includes: B1. Obtaining pipeline parameters of multiple pipelines at the transition interface and water temperature data measured in real time by temperature sensors; B2. Calculate the target water temperature value required for each pipeline node based on the obtained pipeline parameters and water temperature data and the preset temperature control strategy. In this process, the adaptability of the pipeline material to temperature changes, the heat loss of the fluid in the pipeline, and the energy efficiency requirements of the pipeline line need to be considered; B3. Monitor the actual water temperature at the transition interface in real time and compare it with the target water temperature value; when the actual water temperature is lower than the target water temperature value, control the heating device to start or increase the heating power through the intelligent temperature control module to increase the water temperature; when the actual water temperature is higher than the target water temperature value, control the heating device to reduce the heating power or shut down.

9. A waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to claim 8, characterized in that: The calculation expression of the temperature control strategy is: ， In the formula, represents the target water temperature value required for the i-th pipeline node; Indicates the external environment temperature; It represents the temperature value required to compensate for the fluid heat loss at the i-th pipeline node; Indicates the adaptability coefficient of the material of the i-th pipeline node to temperature changes; represents the actual water temperature demand of the i-th pipeline node; It represents the energy efficiency coefficient of the pipeline line, which is used to adjust the target water temperature value to optimize the energy efficiency of the pipeline line.

10. A pipeline construction method for building water supply, drainage and heating engineering, based on the waterproof and thermal insulation construction method for building water supply, drainage and heating engineering according to any one of claims 1 to 9, characterized in that: include: Water supply pipeline, transition interface, pressure regulating valve, temperature sensor, heater, expansion tank, gas collecting tank, radiator, return pipe and circulating water pump; The water supply pipeline includes a water supply main, a water supply trunk, a water supply riser, a water return main and a water return riser; the water supply main, the water supply trunk and the water supply riser are connected in sequence, and the gas collecting tank and the radiator are both installed at the water supply riser; the expansion water tank is located at the highest point of the pipeline line and is connected to the water supply trunk and the water return trunk; The water return riser is connected to the radiator, and the water return riser is connected to the water return main pipe; The return water main is connected to the circulating water pump, the circulating water pump is connected to the input end of the heater, and the output end of the heater is connected to the water supply main; The transition interface is installed at the connection node of the water supply pipeline, and the pressure regulating valve and the temperature sensor are both installed at the transition interface.

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