Green snow melting and deicing construction method for steel structure roof based on severe cold area

Abstract

The invention relates to the technical field of roof deicing, in particular to a green snow melting and deicing construction method for a steel structure roof based on a severe cold area. Comprising the following steps: S1, surveying and designing a site; s2, preparing materials and equipment; s3, constructor training; s4, construction of a steel structure roof base layer; s5, mounting an ice and snow melting device; s6, electrical system installation; s7, heat preservation and waterproof treatment; and S8, system debugging and acceptance. The electrical system is automatically controlled, the roof condition is fed back in real time through monitoring equipment, intelligent operation of the ice and snow melting device is achieved, and the intelligent level and the energy-saving effect of the system are improved. The device is mainly applied to green snow melting and deicing of steel structure roofs in severe cold areas.

Description

Technical Field

[0001] The present invention relates to the technical field of roof deicing, and more particularly to a green snow-melting and deicing construction method for steel structure roofs in severely cold regions. Background Art

[0002] In extremely cold regions, rooftop snow accumulation and icicles on eaves are serious problems in winter. Hanging icicles can damage eaves or even fall, causing personal injury and property damage. Heavy snow can also cause roofs to deform or collapse, posing a major safety hazard. Existing rooftop ice and snow melting methods mostly use electric heating, which consumes a lot of energy. In addition, during construction, the ice and snow melting device is not tightly integrated with the steel structure roof, and the construction process is not perfect, resulting in low snow melting efficiency, high energy consumption, and poor stability. Therefore, there is an urgent need for a green snow melting and de-icing steel structure roof construction method with perfect construction technology, energy saving and environmental protection. Summary of the Invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a green snow-melting and ice-removing construction method for steel structure roofs in severe cold regions. In order to solve the above technical problems, the technical solution adopted by the present invention is: The green snow melting and ice removal construction method for steel structure roofs in severe cold regions includes the following steps: S1. Site Survey and Design: Conduct detailed survey of the construction site and conduct in-depth design of the steel structure roof based on the survey data; S2. Material and Equipment Preparation: Prepare steel structure materials, purchase relevant components of ice and snow melting devices, and prepare tools and equipment required for construction; S3. Construction personnel training: organize technical training for construction personnel and conduct safety briefings; S4. Construction of steel structure roof base: First install steel columns and steel beams, then install purlins on the steel beams, and finally install the roof support system; S5. Ice and snow melting device installation: According to the design drawings, install the focusing ball and light pipe, then install the insulation pipe and metal heat sink, then install the corrugated heat absorbing plate and heat dissipation fins, then install the ventilation pipe and fan, and finally install the electric heating wire and electric heater; S6. Electrical system installation: First, lay the wires and cables, then install the control equipment; S7, insulation and waterproofing: first lay the insulation layer, then install the roof panels, and finally lay the waterproof membrane; S8. System debugging and acceptance: After equipment debugging and performance testing, acceptance and delivery are carried out.

[0004] Specifically, step S1 includes conducting a detailed survey of the construction site, measuring the size, slope, and steel structure layout parameters of the roof, and recording climate data for cold regions, including average temperature, snowfall, and sunshine hours. Based on the survey data and in combination with the design requirements of the ice and snow melting device, a detailed design of the steel structure roof is conducted, construction drawings are drawn, and the installation location and connection method of each component are clarified.

[0005] Specifically, step S2 includes preparing steel structure materials, including steel columns, steel beams, and purlins, ensuring that their quality meets national standards and performing anti-corrosion treatment on the surface; purchasing relevant components of the ice-melting and snow-melting device, including but not limited to focusing balls, light guides, insulation pipes, metal heat sinks, corrugated heat absorbing plates, heat dissipation fins, ventilation pipes, fans, electric heating wires, and electric heaters, checking whether the specifications and performance of each component meet the design requirements, and performing an appearance inspection on the metal heat sinks and corrugated heat absorbing plates to ensure that there are no deformation, cracks or defects; preparing the tools and equipment required for construction, including but not limited to electric welders, cutting machines, drilling machines, cranes, and measuring instruments, and debugging and calibrating the equipment to ensure its normal operation.

[0006] Specifically, step S3 includes organizing technical training for construction personnel, familiarizing them with construction drawings, construction techniques and safety operating procedures, focusing on explaining the installation points and precautions of ice-melting and snow-melting devices; conducting safety briefings, emphasizing safety measures for high-altitude operations and electrical construction, and equipping them with safety protection equipment.

[0007] The step S4 is specifically as follows: Installation of steel columns and beams: According to the construction drawings, use a crane to lift the steel columns to the designed position, adjust the verticality and elevation of the steel columns, and secure them to the foundation with anchor bolts; install the steel beams, welding or bolting the steel beams to the steel columns to form the steel structure frame; check the flatness and connection strength of the steel beams to ensure the stability of the steel structure frame; Purlin installation: Install purlins on the steel beams. The spacing between purlins is determined according to the roofing material and the layout requirements of the ice and snow melting device. Bolt or weld the purlins to the steel beams to ensure that the purlins are neatly arranged and evenly spaced. Align the purlins to ensure that their top surface elevation meets the design requirements, providing a flat foundation for the subsequent installation of roof panels and ice and snow melting devices. Installation of roof support system: Install the roof support system, including horizontal supports, vertical supports and corner supports, to enhance the overall rigidity and stability of the steel structure roof; the installation of the support system complies with the design requirements, and the connection nodes are firm and reliable.

[0008] The step S5 is specifically as follows: Installation of the focusing ball and light pipe: According to the design drawings, install the focusing ball in a suitable location on the roof, with the installation angle of the focusing ball facing the direction of sufficient sunlight to ensure maximum sunlight collection. Use a bracket to fix the focusing ball to the purlin or steel structure frame, and adjust the height and angle of the bracket to align the center of the focusing ball with the entrance of the light pipe. Install the light pipe, connecting one end of the light pipe to the focusing ball and leading the other end into the insulation pipe, corresponding to the position of the corrugated heat absorbing plate. The light pipe connection is tight and sealed with sealant or sealing ring to prevent rainwater and dust from entering. Installation of insulation pipes and metal vapor chambers: Lay insulation pipes above the purlins. The direction of the insulation pipes is determined by the roof slope and snowmelt requirements, ensuring that the ventilation pipes are evenly distributed under the roof. The insulation pipes are connected by butt-jointing or sleeve-jointing, and the joints are sealed with insulation material to reduce heat loss. A metal vapor chamber is installed horizontally in the center of the insulation pipe. The metal vapor chamber is fixed to the inner wall of the insulation pipe using a bracket to ensure its horizontality and stability. The upper end of the metal vapor chamber is fixed to the corrugated heat absorber, and the lower end is fixed to the heat sink fins. The connection method is welding or bolting to ensure good thermal conductivity. Installation of the corrugated heat absorber and heat sink fins: Install the corrugated heat absorber on the upper end of the metal vapor chamber, with the corrugated structure facing the exit of the light guide tube to increase the sunlight absorption area. Use bolts or rivets to fix the corrugated heat absorber to the metal vapor chamber, ensuring a firm connection and a smooth surface. Install heat sink fins on the lower end of the metal vapor chamber, with the heat sink fins evenly distributed below the metal vapor chamber to form a good heat exchange with the air inside the insulation tube. Connect the heat sink fins to the metal vapor chamber by welding or clipping to ensure heat dissipation efficiency. Ventilation pipe and fan installation: Install ventilators on both sides of the lower end of the metal soaking plate inside the insulation pipe. The number and spacing of ventilators should be determined based on the roof area and snowmelt requirements. One end of the ventilator should be connected to the inside of the insulation pipe, and the other end should extend below the roof. The ventilators should be evenly distributed throughout the steel structure roof. Ensure that the ventilators are installed unobstructed to avoid blockage. Install the fan, secure it to the outside of the insulation pipe, and connect it to the lower end of the metal soaking plate inside the pipe via a pipe. The fan model and power should be selected based on the volume of the insulation pipe and the air flow requirements, ensuring that the air in the pipe is fully in contact with the heat sink fins and heated. Installation of electric heating wire and electric heater: Lay the electric heating wire inside the metal soaking pan. The electric heating wire should be arranged in a spiral or serpentine shape and evenly distributed inside the metal soaking pan to ensure uniform heating. Connect both ends of the electric heating wire to the electric heater. When connecting, pay attention to the insulation and waterproofing of the wires to avoid short circuit failures. Install the electric heater on the roof. When connecting the electric heater to the power supply, set overload protection and leakage protection devices to ensure safe use of electricity.

[0009] The step S6 is specifically as follows: Laying of wires and cables: Laying wires and cables connecting electric heating wires, electric heaters, and fan equipment. Use special cables that are resistant to high and low temperatures and moisture-proof to meet the requirements for use in extremely cold areas. Lay the wires and cables along the steel structure frame or purlins and use cable troughs or conduits to protect them from mechanical damage. When passing through insulation pipes and roof panels, seal them properly to prevent rainwater and moisture from entering. Installation of control equipment: Install temperature sensors and snow sensors for real-time monitoring of roof temperature and snow thickness parameters; the temperature sensor is installed under the roof panel and inside the insulation pipe, and the snow sensor is installed near the roof; install a control system to connect the monitoring equipment and the electrical equipment of the ice and snow melting device to achieve automatic control; the control system automatically starts or shuts down the focusing ball, fan, and electric heater equipment according to the monitored temperature and snow accumulation conditions to achieve energy-saving operation.

[0010] The step S7 is specifically as follows: Laying the insulation layer: Lay the insulation layer between the purlins of the steel structure roof. Use high-efficiency insulation materials, and the thickness is determined according to the insulation requirements of severely cold regions. Lay the insulation layer flat and tightly to avoid gaps and reduce heat loss. Wrap the insulation material around the outside of the insulation pipe to further improve the insulation effect. The insulation material and the insulation pipe should be tightly fitted and fixed with tape or cable ties. Roof panel installation: The roof panels are made of steel structure roof panels. The panels are laid in accordance with the roof slope requirements. The overlaps are sealed with sealant or waterproof tape to prevent rainwater leakage. Special waterproof treatment is performed at the connection between the roof panels and the ice and snow melting device. Waterproof casing and sealant are used for sealing to ensure the waterproof performance of the roof. Laying of waterproof membrane: Lay waterproof membrane on top of the roof panel. Choose low-temperature resistant membrane suitable for cold areas. The waterproof membrane should be laid flat and without wrinkles. The overlap width meets the requirements of the specifications. Use hot melt or cold bonding method to ensure the waterproof effect.

[0011] The step S8 is specifically as follows: Equipment debugging: debug the focusing ball and adjust its installation angle to ensure that it can accurately collect sunlight and irradiate it onto the wavy heat absorbing plate through the light guide; turn on the fan and check whether the fan's operating direction and air volume meet the design requirements, and whether the air flows smoothly in the insulation pipe; test the heating function of the electric heating wire. After turning on the power, check whether the electric heating wire is heating normally, whether the temperature rises evenly, and whether the control of the electric heater is sensitive and reliable; debug the control system in conjunction with the simulation of different weather conditions and snow accumulation, and observe whether the control system can automatically start the corresponding equipment. For example, when the roof temperature is below 0℃ and there is snow, the fan and electric heater will be automatically started, and the equipment will be automatically shut down when the snow melts; Performance testing: Conduct snow melting efficiency tests by laying a certain thickness of snow on the roof, activating the ice and snow melting device, recording the time and energy consumption for snow melting, and evaluating whether the snow melting efficiency meets the design requirements; test the roof's thermal insulation performance by measuring the temperature difference between the inside and outside of the roof in cold weather and checking whether the insulation layer and insulation pipes are effective; conduct waterproof performance tests by observing whether there are any leaks on the roof through artificial water spraying or natural rainfall, especially whether the connection between the ice and snow melting device and the roof is properly sealed; Acceptance and delivery: Organize construction, design, and supervision units to conduct project acceptance, check whether the construction quality meets the design drawings and specifications, review equipment commissioning and performance test reports, and ensure that the functions of the ice-melting and snow-removing device and the steel structure roof are normal; organize construction materials, including construction drawings, material inspection reports, hidden project acceptance records, and equipment commissioning records, and archive them; deliver the project to the user, provide instruction manuals and maintenance manuals, and guide the user to correctly use and maintain the snow-melting and ice-removing steel structure roof system.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Through detailed construction process steps, the ice-melting and snow-melting device is efficiently integrated with the steel structure roof, ensuring accurate installation and secure connections of all components, thereby improving the stability and reliability of the system. A combination of solar heating by concentrating balls and auxiliary electric heating is used to fully utilize solar energy, reduce energy consumption, and comply with green environmental protection requirements. The wavy heat-absorbing plate increases the sunlight absorption area, and the heat dissipation fins enhance heat exchange efficiency and speed up snow melting. During the construction process, attention was paid to thermal insulation and waterproofing treatment, which reduced heat loss and rainwater leakage, ensured the thermal insulation and waterproofing properties of the steel structure roof, and extended the roof's service life. The electrical system uses automated control, and real-time feedback on roof conditions is provided through monitoring equipment, enabling intelligent operation of the ice-melting and snow-melting device, improving the system's intelligence level and energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a construction flow chart of the present invention. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0015] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0016] like Figure 1 As shown, the green snow melting and ice removal construction method for steel structure roofs in severe cold areas includes the following steps: S1. Site Survey and Design: Conduct a detailed survey of the construction site and conduct in-depth design of the steel structure roof based on the survey data. Conduct a detailed survey of the construction site, measure the roof dimensions, slope, and steel structure layout parameters, and record climate data for severely cold regions, including average temperature, snowfall, and sunshine hours. Based on the survey data and the design requirements of the ice and snow melting device (such as the layout of the focusing balls and the direction of the insulation pipes), conduct in-depth design of the steel structure roof, prepare construction drawings, and clarify the installation location and connection method of each component. S2. Material and Equipment Preparation: Prepare steel structure materials, purchase relevant components for ice and snow melting devices, and prepare the tools and equipment required for construction; prepare steel structure materials, including steel columns, steel beams, and purlins, ensure their quality meets national standards, and perform anti-corrosion treatment on the surface; purchase relevant components for ice and snow melting devices, including but not limited to focusing balls, light guides, insulation pipes, metal heat sinks, corrugated heat absorbing plates, heat dissipation fins, ventilation pipes, fans, electric heating wires, and electric heaters, check whether the specifications and performance of each component meet the design requirements, and perform an appearance inspection of the metal heat sinks and corrugated heat absorbing plates to ensure there are no deformation, cracks, or defects; prepare the tools and equipment required for construction, including but not limited to electric welders, cutters, drills, cranes, and measuring instruments, and debug and calibrate the equipment to ensure its normal operation; S3. Construction Personnel Training: Organize technical training for construction personnel and conduct safety briefings. Organize technical training for construction personnel to familiarize themselves with construction drawings, construction processes, and safe operating procedures, with a focus on explaining the installation points and precautions for ice and snow melting devices. Conduct safety briefings, emphasize safety measures for high-altitude operations and electrical construction, and provide necessary safety protection equipment. S4. Steel structure roof base construction: First, install the steel columns and steel beams, then install the purlins on the steel beams, and finally install the roof support system. Steel column and beam installation: According to the construction drawings, use a crane to lift the steel columns to the designed position, adjust the verticality and elevation of the steel columns, and secure them to the foundation with anchor bolts. Install the steel beams and weld or bolt them to the steel columns to form the steel structure frame. Check the flatness and connection strength of the steel beams to ensure the stability of the steel structure frame. Purlin installation: Install purlins on the steel beams. The spacing between purlins is determined according to the roofing material and the layout requirements of the ice and snow melting device. Bolt or weld the purlins to the steel beams to ensure that the purlins are neatly arranged and evenly spaced. Align the purlins to ensure that their top surface elevation meets the design requirements, providing a flat foundation for the subsequent installation of roof panels and ice and snow melting devices. Installation of roof support system: Install the roof support system, including horizontal supports, vertical supports and corner supports, to enhance the overall rigidity and stability of the steel structure roof. The installation of the support system should meet the design requirements, and the connection nodes should be firm and reliable. S5. Ice and snow melting device installation: According to the design drawings, install the focusing ball and light pipe, then install the insulation pipe and metal heat sink, then install the corrugated heat absorbing plate and heat dissipation fins, then install the ventilation pipe and fan, and finally install the electric heating wire and electric heater; Installation of the focusing ball and light pipe: According to the design drawings, install the focusing ball at a suitable location on the roof. The installation angle of the focusing ball should face the direction of sufficient sunlight to ensure that it can maximize the collection of sunlight; Use a bracket to fix the focusing ball to the purlin or steel structure frame, and adjust the height and angle of the bracket so that the center of the focusing ball is aligned with the entrance of the light pipe; Install the light pipe, connect one end of the light pipe to the focusing ball, and lead the other end into the insulation pipe, corresponding to the position of the corrugated heat absorbing plate; The connection of the light pipe should be tight and sealed with sealant or sealing ring to prevent rainwater and dust from entering; Installation of insulation pipes and metal vapor chambers: Lay insulation pipes above the purlins. The direction of the insulation pipes is determined by the roof slope and snowmelt requirements to ensure that the ventilation pipes can be evenly distributed under the roof. The insulation pipes are connected by butt-jointing or socketing, and the joints are sealed with insulation material to reduce heat loss. A metal vapor chamber is installed horizontally in the center of the insulation pipe. Use brackets to fix the metal vapor chamber to the inner wall of the insulation pipe to ensure its horizontality and stability. The upper end of the metal vapor chamber is fixedly connected to the corrugated heat absorbing plate, and the lower end is fixedly connected to the heat dissipation fins. The connection method is welding or bolting to ensure good thermal conductivity. Installation of the corrugated heat absorber and heat sink fins: Install the corrugated heat absorber on the upper end of the metal vapor chamber, with the corrugated structure facing the exit of the light guide tube to increase the sunlight absorption area. Use bolts or rivets to fix the corrugated heat absorber to the metal vapor chamber, ensuring a firm connection and a smooth surface. Install heat sink fins on the lower end of the metal vapor chamber, with the heat sink fins evenly distributed below the metal vapor chamber to form a good heat exchange with the air inside the insulation tube. Connect the heat sink fins to the metal vapor chamber by welding or clipping to ensure heat dissipation efficiency. Ventilation pipe and fan installation: Install ventilation pipes on both sides of the lower end of the metal soaking plate inside the insulation pipe. The number and spacing of ventilation pipes are determined by the roof area and snow melting requirements. One end of the ventilation pipe is connected to the inside of the insulation pipe, and the other end extends below the roof. They are evenly distributed in various areas of the steel structure roof. The ventilation pipes should be installed to ensure they are unobstructed and avoid blockage. Install the fan, fix it in a suitable position outside the insulation pipe, and connect it to the lower end of the metal soaking plate inside the insulation pipe through a pipe. The model and power of the fan are selected according to the volume of the insulation pipe and the air flow requirements to ensure that it can provide sufficient air volume so that the air in the insulation pipe fully contacts the heat sink fins and heats up. Installation of electric heating wires and electric heaters: Lay electric heating wires inside the metal vapor chamber. The electric heating wires should be arranged in a spiral or serpentine shape and evenly distributed inside the metal vapor chamber to ensure uniform heating. Connect both ends of the electric heating wires to the electric heater. When making connections, pay attention to the insulation and waterproofing of the wires to avoid short circuits. Install the electric heater in a suitable location near the roof, such as in an equipment room or under the eaves, for easy operation and maintenance. When connecting the electric heater to the power supply, comply with electrical installation specifications and install overload protection and leakage protection devices to ensure safe use of electricity. S6. Electrical system installation: First, lay the wires and cables, followed by the control equipment. Wire and cable laying: Lay the wires and cables connecting the electric heating wires, electric heaters, and fan equipment. Use specialized cables that are resistant to high and low temperatures and moisture, meeting the requirements for use in severely cold regions. Lay the wires and cables along the steel structure frame or purlins, using cable troughs or conduits to protect them from mechanical damage. Ensure they are sealed when passing through insulation pipes and roof panels to prevent the ingress of rain and moisture. Control equipment installation: Install temperature sensors and snow depth sensors to monitor roof temperature and snow depth in real time. Temperature sensors are installed below the roof panels and inside the insulation pipes, while snow depth sensors are installed near the roof. Install a control system, such as a PLC controller or intelligent control box, to connect the monitoring equipment and the electrical equipment of the ice and snow melting device to achieve automated control. The control system automatically starts or shuts down the focusing bulb, fan, and electric heater based on the monitored temperature and snow accumulation, achieving energy-saving operation. S7. Insulation and waterproofing: First, lay the insulation layer, then install the roof panels, and finally lay the waterproof membrane. Insulation layer laying: Lay the insulation layer between the purlins of the steel structure roof. The insulation layer should use high-efficiency insulation materials such as rock wool and glass wool. The thickness should be determined according to the insulation requirements of extremely cold areas. The insulation layer should be laid flat and tightly to avoid gaps and reduce heat loss. Wrap the insulation material on the outside of the insulation pipe to further improve the insulation effect. The insulation material and the insulation pipe should be tightly fitted and fixed with tape or cable ties. Roof panel installation: Install roof panels. Roof panels should be made of steel structure roof panels, such as color-coated steel plates, aluminum-magnesium-manganese plates, etc. The panels should be laid in accordance with the roof slope requirements. Sealant or waterproof tape should be used to seal the overlaps to prevent rainwater leakage. Special waterproofing treatment should be performed at the connection between the roof panel and the ice and snow melting device, such as the location where the vent pipe passes through the roof panel, and waterproof casing and sealant should be used to ensure the waterproof performance of the roof. Waterproof membrane laying: Waterproof membrane is laid on top of the roof panel. The waterproof membrane should be suitable for cold regions and should be low-temperature resistant, such as SBS modified asphalt waterproof membrane. The waterproof membrane should be laid flat and wrinkle-free, with the overlap width meeting the requirements of the regulations. It should be bonded by hot melt or cold bonding to ensure the waterproof effect. S8. System debugging and acceptance: After equipment debugging and performance testing, acceptance and delivery are carried out; Equipment debugging: Debug the focusing ball and adjust its installation angle to ensure that it can accurately collect sunlight and irradiate it onto the wavy heat absorbing plate through the light guide; Turn on the fan and check whether the fan's running direction and air volume meet the design requirements and whether the air flows smoothly in the insulation pipe; Test the heating function of the electric heating wire. After turning on the power, check whether the electric heating wire is heating normally, whether the temperature rises evenly, and whether the control of the electric heater is sensitive and reliable; Debug the control system in a linked manner, simulate different weather conditions and snow accumulation, and observe whether the control system can automatically start the corresponding equipment. For example, when the roof temperature is below 0℃ and there is snow, the fan and electric heater are automatically started, and the equipment is automatically shut down when the snow melts; Performance testing: Conduct snow melting efficiency tests by laying a certain thickness of snow on the roof, activating the ice and snow melting device, recording the time and energy consumption for snow melting, and evaluating whether the snow melting efficiency meets the design requirements; test the roof's thermal insulation performance by measuring the temperature difference between the inside and outside of the roof in cold weather and checking whether the insulation layer and insulation pipes are effective; conduct waterproof performance tests by observing whether there are any leaks on the roof through artificial water spraying or natural rainfall, especially whether the connection between the ice and snow melting device and the roof is properly sealed; Acceptance and delivery: Organize construction, design, and supervision units to conduct project acceptance, check whether the construction quality meets the design drawings and specifications, review equipment commissioning and performance test reports, and ensure that the functions of the ice-melting and snow-removing device and the steel structure roof are normal; organize construction materials, including construction drawings, material inspection reports, hidden project acceptance records, and equipment commissioning records, and archive them; deliver the project to the user, provide instruction manuals and maintenance manuals, and guide the user to correctly use and maintain the snow-melting and ice-removing steel structure roof system.

[0017] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention. Various changes should be included in the scope of protection of the present invention.

Claims

1. A green snow melting and ice removal construction method for steel structure roofs in severe cold regions, characterized in that: The following steps are involved: S1. Site Survey and Design: Conduct detailed survey of the construction site and conduct in-depth design of the steel structure roof based on the survey data; S2. Material and Equipment Preparation: Prepare steel structure materials, purchase relevant components of ice and snow melting devices, and prepare tools and equipment required for construction; S3. Construction personnel training: organize technical training for construction personnel and conduct safety briefings; S4. Construction of steel structure roof base: First install steel columns and steel beams, then install purlins on the steel beams, and finally install the roof support system; S5. Ice and snow melting device installation: According to the design drawings, install the focusing ball and light pipe, then install the insulation pipe and metal heat sink, then install the corrugated heat absorbing plate and heat dissipation fins, then install the ventilation pipe and fan, and finally install the electric heating wire and electric heater; S6. Electrical system installation: First, lay the wires and cables, then install the control equipment; S7, insulation and waterproofing: first lay the insulation layer, then install the roof panels, and finally lay the waterproof membrane; S8. System debugging and acceptance: After equipment debugging and performance testing, acceptance and delivery are carried out.

2. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: Specifically, step S1 includes conducting a detailed survey of the construction site, measuring the size, slope, and steel structure layout parameters of the roof, and recording climate data for cold regions, including average temperature, snowfall, and sunshine hours. Based on the survey data and in combination with the design requirements of the ice and snow melting device, a detailed design of the steel structure roof is conducted, construction drawings are drawn, and the installation location and connection method of each component are clarified.

3. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: Specifically, step S2 includes preparing steel structure materials, including steel columns, steel beams, and purlins, ensuring that their quality meets national standards and performing anti-corrosion treatment on the surface; purchasing relevant components of the ice-melting and snow-melting device, including but not limited to focusing balls, light guides, insulation pipes, metal heat sinks, corrugated heat absorbing plates, heat dissipation fins, ventilation pipes, fans, electric heating wires, and electric heaters, checking whether the specifications and performance of each component meet the design requirements, and performing an appearance inspection on the metal heat sinks and corrugated heat absorbing plates to ensure that there are no deformation, cracks or defects; preparing the tools and equipment required for construction, including but not limited to electric welders, cutting machines, drilling machines, cranes, and measuring instruments, and debugging and calibrating the equipment to ensure its normal operation.

4. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: Specifically, step S3 includes organizing technical training for construction personnel, familiarizing them with construction drawings, construction techniques and safety operating procedures, focusing on explaining the installation points and precautions of ice-melting and snow-melting devices; conducting safety briefings, emphasizing safety measures for high-altitude operations and electrical construction, and equipping them with safety protection equipment.

5. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: The step S4 is specifically as follows: Installation of steel columns and beams: According to the construction drawings, use a crane to lift the steel columns to the designed position, adjust the verticality and elevation of the steel columns, and secure them to the foundation with anchor bolts; install the steel beams, welding or bolting the steel beams to the steel columns to form the steel structure frame; check the flatness and connection strength of the steel beams to ensure the stability of the steel structure frame; Purlin installation: Install purlins on the steel beams. The spacing between purlins is determined according to the roofing material and the layout requirements of the ice and snow melting device. Bolt or weld the purlins to the steel beams to ensure that the purlins are neatly arranged and evenly spaced. Align the purlins to ensure that their top surface elevation meets the design requirements, providing a flat foundation for the subsequent installation of roof panels and ice and snow melting devices. Installation of roof support system: Install the roof support system, including horizontal supports, vertical supports and corner supports, to enhance the overall rigidity and stability of the steel structure roof; the installation of the support system complies with the design requirements, and the connection nodes are firm and reliable.

6. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: The step S5 is specifically as follows: Installation of the focusing ball and light pipe: According to the design drawings, install the focusing ball in a suitable location on the roof, with the installation angle of the focusing ball facing the direction of sufficient sunlight to ensure maximum sunlight collection. Use a bracket to fix the focusing ball to the purlin or steel structure frame, and adjust the height and angle of the bracket to align the center of the focusing ball with the entrance of the light pipe. Install the light pipe, connecting one end of the light pipe to the focusing ball and leading the other end into the insulation pipe, corresponding to the position of the corrugated heat absorbing plate. The light pipe connection is tight and sealed with sealant or sealing ring to prevent rainwater and dust from entering. Installation of insulation pipes and metal vapor chambers: Lay insulation pipes above the purlins. The direction of the insulation pipes is determined by the roof slope and snowmelt requirements, ensuring that the ventilation pipes are evenly distributed under the roof. The insulation pipes are connected by butt-jointing or sleeve-jointing, and the joints are sealed with insulation material to reduce heat loss. A metal vapor chamber is installed horizontally in the center of the insulation pipe. The metal vapor chamber is fixed to the inner wall of the insulation pipe using a bracket to ensure its horizontality and stability. The upper end of the metal vapor chamber is fixed to the corrugated heat absorber, and the lower end is fixed to the heat sink fins. The connection method is welding or bolting to ensure good thermal conductivity. Installation of the corrugated heat absorber and heat sink fins: Install the corrugated heat absorber on the upper end of the metal vapor chamber, with the corrugated structure facing the exit of the light guide tube to increase the sunlight absorption area. Use bolts or rivets to fix the corrugated heat absorber to the metal vapor chamber, ensuring a firm connection and a smooth surface. Install heat sink fins on the lower end of the metal vapor chamber, with the heat sink fins evenly distributed below the metal vapor chamber to form a good heat exchange with the air inside the insulation tube. Connect the heat sink fins to the metal vapor chamber by welding or clipping to ensure heat dissipation efficiency. Ventilation pipe and fan installation: Install ventilators on both sides of the lower end of the metal soaking plate inside the insulation pipe. The number and spacing of ventilators should be determined based on the roof area and snowmelt requirements. One end of the ventilator should be connected to the inside of the insulation pipe, and the other end should extend below the roof. The ventilators should be evenly distributed throughout the steel structure roof. Ensure that the ventilators are installed unobstructed to avoid blockage. Install the fan, secure it to the outside of the insulation pipe, and connect it to the lower end of the metal soaking plate inside the pipe via a pipe. The fan model and power should be selected based on the volume of the insulation pipe and the air flow requirements, ensuring that the air in the pipe is fully in contact with the heat sink fins and heated. Installation of electric heating wire and electric heater: Lay the electric heating wire inside the metal soaking pan. The electric heating wire should be arranged in a spiral or serpentine shape and evenly distributed inside the metal soaking pan to ensure uniform heating. Connect both ends of the electric heating wire to the electric heater. When connecting, pay attention to the insulation and waterproofing of the wires to avoid short circuit failures. Install the electric heater on the roof. When connecting the electric heater to the power supply, set overload protection and leakage protection devices to ensure safe use of electricity.

7. The green snow melting and ice removal construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: The step S6 is specifically as follows: Laying of wires and cables: Laying wires and cables connecting electric heating wires, electric heaters, and fan equipment. Use special cables that are resistant to high and low temperatures and moisture-proof to meet the requirements for use in extremely cold areas. Lay the wires and cables along the steel structure frame or purlins and use cable troughs or conduits to protect them from mechanical damage. When passing through insulation pipes and roof panels, seal them properly to prevent rainwater and moisture from entering. Installation of control equipment: Install temperature sensors and snow sensors for real-time monitoring of roof temperature and snow thickness parameters; the temperature sensor is installed under the roof panel and inside the insulation pipe, and the snow sensor is installed near the roof; install a control system to connect the monitoring equipment and the electrical equipment of the ice and snow melting device to achieve automatic control; the control system automatically starts or shuts down the focusing ball, fan, and electric heater equipment according to the monitored temperature and snow accumulation conditions to achieve energy-saving operation.

8. The green snow-melting and ice-removing construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: The step S7 is specifically as follows: Laying the insulation layer: Lay the insulation layer between the purlins of the steel structure roof. Use high-efficiency insulation materials, and the thickness is determined according to the insulation requirements of severely cold regions. Lay the insulation layer flat and tightly to avoid gaps and reduce heat loss. Wrap the insulation material around the outside of the insulation pipe to further improve the insulation effect. The insulation material and the insulation pipe should be tightly fitted and fixed with tape or cable ties. Roof panel installation: The roof panels are made of steel structure roof panels. The panels are laid in accordance with the roof slope requirements. The overlaps are sealed with sealant or waterproof tape to prevent rainwater leakage. Special waterproof treatment is performed at the connection between the roof panels and the ice and snow melting device. Waterproof casing and sealant are used for sealing to ensure the waterproof performance of the roof. Laying of waterproof membrane: Lay waterproof membrane on top of the roof panel. Choose low-temperature resistant membrane suitable for cold areas. The waterproof membrane should be laid flat and without wrinkles. The overlap width meets the requirements of the specifications. Use hot melt or cold bonding method to ensure the waterproof effect.

9. The green snow-melting and ice-removing construction method for steel structure roofs in severe cold regions according to claim 1 is characterized by: The step S8 is specifically as follows: Equipment debugging: debug the focusing ball and adjust its installation angle to ensure that it can accurately collect sunlight and irradiate it onto the wavy heat absorbing plate through the light guide; turn on the fan and check whether the fan's operating direction and air volume meet the design requirements, and whether the air flows smoothly in the insulation pipe; test the heating function of the electric heating wire. After turning on the power, check whether the electric heating wire is heating normally, whether the temperature rises evenly, and whether the control of the electric heater is sensitive and reliable; debug the control system in conjunction with the simulation of different weather conditions and snow accumulation, and observe whether the control system can automatically start the corresponding equipment. For example, when the roof temperature is below 0℃ and there is snow, the fan and electric heater will be automatically started, and the equipment will be automatically shut down when the snow melts; Performance test: Conduct snow melting efficiency test, lay a certain thickness of snow on the roof, start the ice and snow melting device, record the time and energy consumption of snow melting, and evaluate whether the snow melting efficiency meets the design requirements; Test the thermal insulation performance of the roof. In cold weather, measure the temperature difference between the inside and outside of the roof to check whether the insulation layer and insulation pipes are effective. Conduct waterproof performance tests. Use artificial water spraying or natural rainfall to observe whether there are any leaks on the roof, especially whether the connection between the ice and snow melting device and the roof is properly sealed. Acceptance and delivery: Organize construction, design, and supervision units to conduct project acceptance, check whether the construction quality meets the design drawings and specifications, review equipment commissioning and performance test reports, and ensure that the functions of the ice-melting and snow-removing device and the steel structure roof are normal; organize construction materials, including construction drawings, material inspection reports, hidden project acceptance records, and equipment commissioning records, and archive them; deliver the project to the user, provide instruction manuals and maintenance manuals, and guide the user to correctly use and maintain the snow-melting and ice-removing steel structure roof system.

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