Intelligent snow and ice melting system for steel structure roof

Abstract

The utility model provides an intelligent snow and ice melting system for a steel structure roof. Comprising an intelligent control system (1), a snow melting and deicing system (2), an environment monitoring system (3), a first connecting line (4) and a second connecting line (5), the environment monitoring system acquires the roof state and transmits a signal to the intelligent control system, the intelligent control system judges whether to start the snow and ice melting system or not, and heating is started when the temperature reaches the lower limit value and the accumulated snow or ice thickness reaches the upper limit value. Stopping heating when the temperature reaches an upper limit value and the thickness of accumulated snow or ice reaches a lower limit value; after the snow and ice melting system is started for heating, the heating power of the adjustable infrared heating film is changed along with the change of the environment state of the roof, the heating power is reduced when the outdoor temperature is high and the snow body thickness and the ice body thickness are small, and the heating power is increased when the outdoor temperature is low and the snow body thickness and the ice body thickness are large. And the most ideal snow melting and deicing effect can be achieved with the minimum power consumption.

Description

Technical Field

[0001] The utility model relates to the field of intelligent snow-melting and ice-melting systems, and in particular to an intelligent snow-melting and ice-melting system for steel structure roofs. Background Art

[0002] In extreme rain and snow weather in winter, the probability of steel structure damage is relatively high. The main reasons for damage are as follows: (1) In northern regions, rain and snow last for a long time and are strong. There is too much snow on the roof. If it is not cleared in time, it will inevitably lead to an increase in roof load, and the structural load may reach its limit and be damaged. (2) In northern regions, the temperature difference between day and night is large in winter. The temperature rises during the day and the snow melts. If the accumulated water is not removed in time, the temperature drops at night and the accumulated water will freeze into ice, increasing the roof load. (3) Due to economic reasons, the quality of steel structure projects is particularly dependent on the rationality of design and construction. If the structure is not properly set up and the connection is not handled properly, the safety capacity of the structure will be greatly reduced.

[0003] In order to avoid the collapse of steel structure roofs due to ice and snow in winter, a snow-melting and ice-melting system for steel structure roofs is urgently needed. At present, the snow-melting and ice-removing methods used are mostly spreading snow-melting agents and traditional heating methods. Although spreading snow-melting agents has a low cost, it will corrode the steel structure roof and is difficult to implement; the traditional heating method is greatly affected by human factors, cannot intelligently control the temperature, the heating is unstable, the energy consumption is high, and the cost is high. To this end, the utility model combines an intelligent control system, an environmental monitoring system and a snow-melting and ice-melting system to design an intelligent snow-melting and ice-melting system for steel structure roofs. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide an intelligent snow-melting and ice-melting system for steel structure roofs. The utility model aims to protect steel structure roofs from damage in extreme snowy weather. The system has stable operation, convenient operation, quick installation, uniform heating, high thermal efficiency, strong corrosion resistance, energy saving and environmental protection, and a wide range of applications, and has good practical application significance.

[0005] The technical solution of the utility model is as follows:

[0006] The utility model relates to an intelligent snow-melting and ice-melting system for steel structure roofs, comprising an intelligent control system 1, a snow-melting and ice-melting system 2, an environmental monitoring system 3, a first connecting line 4 and a second connecting line 5; the environmental monitoring system 3 is used to obtain the roof status and transmit the signal to the intelligent control system 1;

[0007] The intelligent control system 1 is arranged indoors, and is used to determine whether to turn on the snow-melting and ice-melting system 2; heating starts when the temperature reaches the lower limit and the thickness of the snow or ice reaches the upper limit, and heating stops when the temperature reaches the upper limit and the thickness of the snow or ice reaches the lower limit.

[0008] The intelligent control system 1 receives the signal transmitted by the environmental monitoring system 3, compares it with the set parameters, and automatically controls the power supply of the intermediate flexible adjustable infrared heating film layer 26 in the snow-melting and ice-melting system 2, and starts heating when the temperature reaches the lower limit and the thickness of the snow or ice reaches the upper limit, and stops heating when the temperature reaches the upper limit and the thickness of the snow or ice reaches the lower limit, thereby ensuring that the most ideal snow-melting and ice-removing effect is achieved with the lowest power consumption.

[0009] Snow and ice melting system 2 is used for temperature control;

[0010] The first connecting line 4 and the second connecting line 5 are connected to the intelligent control system 1 , the snow and ice melting system 2 and the environmental monitoring system 3 .

[0011] Preferably, the intelligent control system 1 comprises: a control cabinet 11, an intelligent control terminal 12 and a third connecting line (13);

[0012] The control cabinet 11 is provided with a 220V independent power supply 111 and a CPU control module 112;

[0013] The 220V independent power supply 111 supplies power to the intelligent control system 1, the snow and ice melting system 2 and the environmental monitoring system 3;

[0014] The intelligent control terminal 12 is provided with an on-site control touch screen; it is used to display the real-time roof image transmitted by the intelligent control system 1, set parameters such as the temperature limit, snow thickness limit, roof ice thickness limit, etc. of the snow melting and ice melting system 2, and at the same time, provide fault alarms for faults of the intelligent control system 1, the snow melting and ice melting system 2, and the environmental monitoring system 3.

[0015] The control cabinet 11 and the intelligent control terminal 12 are connected via a third connecting line 13 .

[0016] Preferably, the snow-melting and ice-melting system 2 is provided with a lower insulation layer 25, a middle flexible adjustable infrared heating film layer 26, an upper anti-corrosion insulation layer 27, a fixing fastener 23, a drainage groove 24, an upper fixing square steel 21 and a lower fixing square steel 22;

[0017] The lower insulation layer 25 is used to prevent heat leakage from the middle flexible adjustable infrared heating film layer 26 and prevent the softening of roof components and the reduction of bearing capacity due to excessive temperature.

[0018] The intermediate flexible adjustable infrared heating film layer 26 has higher thermal efficiency and uniform heat generation compared to traditional heating wires. The upper anti-corrosion insulation layer 27 protects the snow-melting and ice-melting system from being damaged by environmental corrosion. The water after snow-melting and ice-melting is discharged in time through the drainage trough to prevent re-freezing.

[0019] The upper fixed square steel 21 and the lower fixed square steel 22 are fixed to the roof by bolts, the upper and lower ends of the snow and ice melting system 2 are fixed to the upper fixed square steel 21 and the lower fixed square steel 22 by fixing fasteners 23, and the drainage trough 24 is fixed to the lower fixed square steel 22 by bolts.

[0020] Preferably, the environmental monitoring system 3 comprises: an infrared icing sensor 31 , an ultrasonic snow thickness detection sensor 32 , an air temperature sensor 33 and a monitor 34 .

[0021] Preferably, the infrared ice sensor 31 is a non-contact sensor, including an infrared emitting element 311 and an infrared receiving element 312. The infrared emitting element 31 emits infrared lasers to multiple locations on the roof, which are reflected after entering the surface of the ice layer and received by the infrared receiving element 312. The reflection coefficient of the ice layer irradiated by the infrared laser is calculated, and the thickness of the ice layer is calculated through the corresponding relationship between the reflection coefficient and the thickness of the ice layer. Finally, the ice thickness signal is transmitted to the intelligent control system 1.

[0022] Preferably, the ultrasonic snow thickness detection sensor 32 includes an ultrasonic transmitting element 321 , an ultrasonic receiving element 322 and a piezoelectric crystal 323 .

[0023] The ultrasonic snow thickness detection sensor 32 emits ultrasonic waves through the ultrasonic transmitting element 321, which are reflected after entering the snow surface and received by the ultrasonic receiving element 322. The piezoelectric crystal 323 converts the ultrasonic waves into electrical signals. The distance from the ultrasonic snow thickness detection sensor 32 to the surface of the snow being measured is obtained from the time between the emission and reception of the sound waves, the snow thickness is calculated, and finally the snow thickness signal is transmitted to the intelligent control system 1.

[0024] Preferably, the air temperature sensor 33 includes a temperature sensing element 331 and a signal conditioning element 332 .

[0025] The temperature sensing element 331 senses the temperature change of the environment using a thermistor, and the signal conditioning element 332 is responsible for amplifying, filtering and calibrating the temperature signal measured by the temperature sensing element 331 to provide an accurate temperature value output.

[0026] Preferably, the environmental monitoring system 3 is fixed to the roof by bolts.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] (1) The intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model combines an intelligent control system, an environmental monitoring system and a snow-melting and ice-melting system. The environmental monitoring system obtains the roof status and transmits the signal to the intelligent control system, which determines whether to start the snow-melting and ice-melting system. When the temperature reaches the lower limit and the thickness of the snow or ice reaches the upper limit, heating begins, and when the temperature reaches the upper limit and the thickness of the snow or ice reaches the lower limit, heating stops. After the snow-melting and ice-melting system is turned on for heating, the heating power of the adjustable infrared heating film will also change with the changes in the roof environment. When the outdoor temperature is high and the snow and ice thicknesses are small, its heating power decreases. When the outdoor temperature is low and the snow and ice thicknesses are large, its heating power increases. Ensure that the most ideal snow-melting and ice-removing effect is achieved with minimal power consumption.

[0029] (2) The intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model prevents heat leakage from the heating film layer by adding a lower insulation layer, and prevents softening of roof components and reduction of bearing capacity due to excessive temperature; the middle flexible and adjustable infrared heating film layer has higher thermal efficiency, faster heating speed and uniform heating compared with traditional heating wires. After the snow-melting and ice-melting system is powered on, the atoms and molecules in the infrared heating film layer collide and rub against each other violently through the excitation of the electric field to produce "Brownian motion", and the heat generated is radiated evenly in the form of short-wavelength far-infrared rays, greatly improving the total conversion rate of effective electric heat energy. An anti-corrosion insulation layer is added to the upper part to protect the snow-melting and ice-melting system from damage caused by environmental corrosion, and a drainage trough is added to the snow-melting and ice-melting system, so that the water after snowmelt and icemelt is discharged in time through the drainage trough to prevent re-freezing;

[0030] (3) The insulation layer, adjustable infrared heating film layer, and anti-corrosion insulation layer in the snow-melting and ice-melting system of the utility model are all made of flexible materials and can be easily installed on various forms of steel structure roofs;

[0031] (4) The utility model has stable operation, quick installation, simple operation, convenient maintenance, low cost, energy saving and environmental protection, and can be widely used in steel structure roofs in northern my country. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0033] Figure 1 This is a structural schematic diagram of the intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model;

[0034] Figure 2 It is a schematic diagram of an intelligent control system of an intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model;

[0035] Figure 3 A schematic diagram of a snow-melting and ice-melting system for a steel structure roof according to the utility model;

[0036] Figure 4 A cross-sectional schematic diagram of the snow-melting and ice-melting system of the intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model;

[0037] Figure 5 A schematic diagram of an environmental monitoring system for an intelligent snow-melting and ice-melting system for steel structure roofs according to the utility model;

[0038] Among them: 1 is an intelligent control system; 2 is a snow-melting and ice-melting system; 3 is an environmental monitoring system; 4 is a first connecting line; 5 is a second connecting line; 11 is a control cabinet; 111 is a 220V independent power supply; 112 is a CPU control module; 12 is an intelligent control terminal; 13 is a third connecting line; 21 is an upper fixed square steel; 22 is a lower fixed square steel; 23 is a fixing fastener; 24 is a drainage trough; 25 is an insulation layer; 26 is a flexible and adjustable infrared heating film layer; 27 is an anti-corrosion insulation layer; 31 is an infrared icing sensor; 311 is an infrared transmitting element; 312 is an infrared receiving element; 32 is an ultrasonic snow thickness detection sensor; 321 is an ultrasonic transmitting element; 322 is an ultrasonic receiving element; 323 is a piezoelectric crystal; 33 is an air temperature sensor; 331 is a temperature sensing element; 332 is a signal conditioning element; 34 is a monitor. DETAILED DESCRIPTION

[0039] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the utility model. These all fall within the scope of protection of the utility model.

[0040] Example

[0041] This embodiment relates to an intelligent snow and ice melting system for steel structure roofs. Figure 1 As shown, it includes an intelligent control system 1, a snow-melting and ice-melting system 2, an environmental monitoring system 3, a first connecting line 4 and a second connecting line 5. The first connecting line 4 is used for power supply and signal transmission between the intelligent control system 1 and the snow-melting and ice-melting system 2, and the second connecting line 5 is used for power supply and signal transmission between the snow-melting and ice-melting system 2 and the environmental monitoring system 3. The first connecting line 4 and the second connecting line 5 can connect the intelligent control system 1, the snow-melting and ice-melting system 2 and the environmental monitoring system 3.

[0042] like Figure 2As shown, the intelligent control system 1 includes: a control cabinet 11, an intelligent control terminal 12 and a third connecting line 13. The control cabinet 11 is provided with a 220V independent power supply 111 and a CPU control module 112. The intelligent control terminal 12 can provide fault alarms for faults in the intelligent control system 1, the snow and ice melting system 2 and the environmental monitoring system 3.

[0043] like Figure 3 and Figure 4 As shown, the snow-melting and ice-melting system 2 is provided with a lower insulation layer 25, a middle flexible adjustable infrared heating film layer 26, an upper anti-corrosion insulation layer 27, a fixing fastener 23, a drainage groove 24, an upper fixing square steel 21 and a lower fixing square steel 22, and the upper fixing square steel 21 and the lower fixing square steel 22 are fixed to the roof by bolts;

[0044] The upper and lower ends of the snow-melting and ice-melting system 2 are fixed to the upper fixed square steel 21 and the lower fixed square steel 22 by means of fixing fasteners 23 , and the drainage trough 24 is fixed to the lower fixed square steel 22 by means of bolts.

[0045] The lower insulation layer 25 is used to prevent heat leakage from the heating film layer and prevent the softening of roof components and the reduction of bearing capacity due to excessive temperature. The middle flexible adjustable infrared heating film layer 26 has higher thermal efficiency and uniform heating compared with traditional heating wires. The upper anti-corrosion insulation layer 27 protects the snow-melting and ice-melting system from damage caused by environmental corrosion. The water after snow-melting and ice-melting is discharged in time through the drainage groove 24 to prevent re-freezing.

[0046] like Figure 5 As shown, the environmental monitoring system 3 includes: an infrared icing sensor 31, an ultrasonic snow thickness detection sensor 32, an air temperature sensor 33, and a monitor 34.

[0047] The air temperature sensor 33 includes a temperature sensing element 331 and a signal conditioning element 332. The temperature sensing element 331 uses a thermistor to sense the temperature change of the environment. The signal conditioning element 332 is responsible for amplifying, filtering and calibrating the temperature signal measured by the temperature sensing element 331 to provide an accurate temperature value output.

[0048] The infrared ice sensor 31 is a non-contact sensor, including an infrared emitting element 311 and an infrared receiving element 312. The infrared emitting element 311 emits infrared lasers to multiple locations on the roof. After entering the surface of the ice layer, the infrared lasers are reflected and received by the infrared receiving element 312. The reflection coefficient of the ice layer irradiated by the infrared laser is calculated, and the thickness of the ice layer is calculated based on the corresponding relationship between the reflection coefficient and the thickness of the ice layer.

[0049] The ultrasonic snow thickness detection sensor 32 includes an ultrasonic transmitting element 321, an ultrasonic receiving element 322 and a piezoelectric crystal 323. The ultrasonic snow thickness detection sensor 32 emits ultrasonic waves through the ultrasonic transmitting element 321. After entering the surface of the snow, the ultrasonic waves are reflected and received by the ultrasonic receiving element 322. The piezoelectric crystal 323 converts the ultrasonic waves into electrical signals. The distance from the sensor to the surface of the snow being measured is obtained from the time between the emission and reception of the sound waves, and the thickness of the snow is calculated.

[0050] Specifically, the intelligent control terminal 12 is provided with a field control touch screen for displaying the real-time roof image transmitted by the monitor 34, and setting parameters such as the temperature limit of the snow melting and ice melting system 2, the snow thickness limit, and the roof ice thickness limit. The signal obtained by the environmental monitoring system 3 is transmitted to the intelligent control system 1 via the first connecting line 4.

[0051] The CPU control module 112 in the intelligent control system 1 processes the signal, compares it with the set parameters, and automatically controls the power supply of the flexible and adjustable infrared heating film layer 26 in the snow-melting and ice-melting system 2. When the temperature reaches the lower limit and the thickness of the snow or ice reaches the upper limit, heating starts, and when the temperature reaches the upper limit and the thickness of the snow or ice reaches the lower limit, heating stops. It ensures that the most ideal snow-melting and ice-melting effect is achieved with the minimum power consumption, and the water after snow-melting and ice-melting is discharged in time through the drainage groove 24 to prevent re-freezing.

[0052] The intelligent snow-melting and ice-melting system for steel structure roofs involved in the utility model combines an intelligent control system, an environmental monitoring system and a snow-melting and ice-melting system; the roof state is obtained through the environmental monitoring system and the signal is transmitted to the intelligent control system, and the intelligent control system determines whether to start the snow-melting and ice-melting system, and starts heating when the temperature reaches the lower limit and the thickness of the snow or ice reaches the upper limit, and stops heating when the temperature reaches the upper limit and the thickness of the snow or ice reaches the lower limit; after the snow-melting and ice-melting system is turned on for heating, the heating power of the adjustable infrared heating film will also change with the change of the roof environment state, and its heating power will decrease when the outdoor temperature is high and the thickness of the snow and ice is small, and its heating power will increase when the outdoor temperature is low and the thickness of the snow and ice is large. Ensure that the most ideal snow-melting and ice-removing effect is achieved with the minimum power consumption.

[0053] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various modifications or variations within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. An intelligent snow-melting and ice-melting system for steel structure roofs, characterized in that: It comprises an intelligent control system (1), a snow-melting and ice-melting system (2), an environmental monitoring system (3), a first connecting line (4) and a second connecting line (5); in, The environmental monitoring system (3) is used to obtain the roof status and transmit the signal to the intelligent control system (1); Intelligent control system (1) The intelligent control system (1) is arranged indoors and is used to determine whether to start the snow-melting and ice-melting system (2); Snow and ice melting system (2) is used for temperature control; The first connecting line (4) is used for supplying power and transmitting signals between the intelligent control system (1) and the snow and ice melting system (2); The second connecting line (5) is used for supplying power and transmitting signals between the snow-melting and ice-melting system (2) and the environmental monitoring system (3).

2. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 1, characterized in that: The intelligent control system (1) comprises: a control cabinet (11), an intelligent control terminal (12) and a third connecting line (13); The control cabinet (11) is provided with a 220V independent power supply (111) and a CPU control module (112), and the intelligent control terminal (12) is provided with a field control touch screen; the control cabinet (11) and the intelligent control terminal (12) are connected via a third connection line (13).

3. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 1, characterized in that: The snow-melting and ice-melting system (2) is provided with a lower thermal insulation layer (25), a middle flexible adjustable infrared heating film layer (26), an upper anti-corrosion insulation layer (27), a fixing fastener (23), a drainage groove (24), an upper fixing square steel (21) and a lower fixing square steel (22); The upper fixed square steel (21) and the lower fixed square steel (22) are fixed to the roof by bolts, the upper and lower ends of the snow and ice melting system (2) are fixed to the upper fixed square steel (21) and the lower fixed square steel (22) by fixing fasteners (23), and the drainage groove (24) is fixed to the lower fixed square steel (22) by bolts.

4. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 1, characterized in that: The environmental monitoring system (3) comprises an infrared icing sensor (31), an ultrasonic snow thickness detection sensor (32), an air temperature sensor (33) and a monitor (34).

5. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 4, characterized in that: The infrared icing sensor (31) is a non-contact sensor, comprising an infrared emitting element (311) and an infrared receiving element (312).

6. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 5, characterized in that: The infrared emitting element (311) emits infrared lasers to multiple locations on the roof, which are reflected after entering the surface of the ice layer and received by the infrared receiving element (312). The reflection coefficient of the ice layer irradiated by the infrared laser is calculated, and the thickness of the ice layer is calculated based on the corresponding relationship between the reflection coefficient and the thickness of the ice layer. Finally, the ice layer thickness signal is transmitted to the intelligent control system (1).

7. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 4, characterized in that: The ultrasonic snow thickness detection sensor (32) comprises an ultrasonic emitting element (321), an ultrasonic receiving element (322) and a piezoelectric crystal (323).

8. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 7, characterized in that: The ultrasonic snow thickness detection sensor (32) emits ultrasonic waves through an ultrasonic emitting element (321), which are reflected after entering the snow surface and received by an ultrasonic receiving element (322). The piezoelectric crystal (323) converts the ultrasonic waves into electrical signals. The distance between the ultrasonic snow thickness detection sensor (32) and the surface of the snow being detected is obtained from the time between the emission and reception of the sound waves, the snow thickness is calculated, and finally the snow thickness signal is transmitted to the intelligent control system (1).

9. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 4, characterized in that: The air temperature sensor (33) comprises a temperature sensing element (331) and a signal conditioning element (332); the temperature sensing element (331) senses the temperature change of the environment using a thermistor, and the signal conditioning element (332) is responsible for amplifying, filtering and calibrating the temperature signal measured by the temperature sensing element (331) to provide an accurate temperature value output.

10. The intelligent snow-melting and ice-melting system for steel structure roof according to claim 1, characterized in that: The environmental monitoring system (3) is fixed to the roof by means of bolts.

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