Bridge tower beam deicing device based on air-thermal and mechanical combined deicing

Abstract

The application discloses a bridge tower beam deicing device based on air-heat-mechanical combined deicing, which comprises a shell, a detection module, an air-heat deicing module and a mechanical deicing module, and the shell is an L-shaped shell capable of adhering to the windward surface and the bottom icing area of the bridge tower beam; the application detects the icing condition of the bridge tower beam through the detection module; then the L-shaped shell is driven to move back and forth along the bridge tower beam to the corresponding icing area through a transverse translation mechanism; then the air-heat deicing module is driven to move up and down inside the L-shaped shell through a longitudinal translation mechanism, and heated air is sprayed out of the side of the bridge tower beam to remove ice; the ice on the surface of the bridge tower beam is peeled off and falls into the mechanical deicing module below under the action of the heated air, and the peeled ice is further crushed by the mechanical deicing module; air-heat-mechanical combined deicing is realized. The application has the advantages of simple structure, high deicing efficiency, complete ice crushing after deicing and no danger to pedestrians and vehicles below.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of bridge auxiliary facilities, and relates to a bridge deicing technology, in particular to a bridge tower beam deicing device and method based on air-heat and mechanical combined deicing. BACKGROUND

[0002] With the continuous development of highway construction, the construction of large-span bridges, as an important part of highway construction, has also developed rapidly. Due to the river environment where the bridge is located, the humidity and wind speed of the airspace where the bridge tower beam is located are large. After entering winter, due to the low temperature, the supercooled water droplets in the air driven by the wind impact on the windward surface of the bridge tower beam, and the gravity causes a large amount of water droplets to gather at the lower edge of the beam, resulting in a serious ice problem on the windward surface of the beam and the lower edge of the beam. When the winter temperature warms up, the surface ice and ice cone at the lower edge of the bridge tower beam are prone to fall, which will seriously threaten the safety of vehicles and pedestrians. How to ensure the deicing efficiency and effect while avoiding the risk of ice falling is the primary problem of safe passage of the bridge tower in cold climate environment. In related technologies, deicing is usually performed by laying heating resistance wires, but due to the limitations of energy consumption, cost and safety, the existing deicing technology has low deicing efficiency, poor deicing effect and cannot avoid the problem of ice falling during deicing, which has no practical significance. SUMMARY

[0003] In order to solve the above problems, the purpose of the present application is to provide a bridge tower beam deicing device and method based on air-heat and mechanical deicing technology.

[0004] The present application is realized by the following technical solutions:

[0005] A bridge tower beam deicing device based on air-heat and mechanical combined deicing, comprising a shell, a detection module, an air-heat deicing module and a mechanical deicing module, characterized in that: the shell is an L-shaped shell that can fit the windward surface and the bottom of the bridge tower beam prone to icing;

[0006] The detection module is arranged on the L-shaped shell and is used for detecting the icing condition of the bridge tower beam;

[0007] The L-shaped shell is installed on the bridge tower beam through a horizontal translation mechanism, and the horizontal translation mechanism can drive the L-shaped shell to move back and forth along the bridge tower beam;

[0008] The air-heat deicing module is installed on the inner side of the long side of the L-shaped shell through a vertical translation mechanism, and the vertical translation mechanism moves the hot air upward and downward along the inside of the L-shaped shell to deice the side of the bridge tower beam;

[0009] The mechanical deicing module is arranged at the bottom of the short side of the L-shaped shell and is used for crushing the falling ice.

[0010] Further, the lateral translation mechanism comprises motion guide rails arranged on both sides of the bridge tower beam, motion wheels embedded in each motion guide rail, and drive motors driving the corresponding motion wheels, the drive motors being fixed at corresponding positions on the L-shaped housing; the output shaft of the drive motor is connected to the motion wheel through a telescopic transmission shaft, and the telescopic movement of the telescopic transmission shaft can adjust the distance between the L-shaped housing and the side surface of the bridge tower beam.

[0011] Further, the telescopic transmission shaft comprises an electric push rod, a spline shaft, and a fixed shaft sleeve, the electric push rod is coaxially fixed on the output shaft of the drive motor, the free telescopic end of the electric push rod is coaxially fixed with one end of the spline shaft, the other end of the spline shaft is fixedly connected with the motion wheel, the fixed shaft sleeve is arranged around the electric push rod and the spline shaft, and is fixed on the seat body of the electric push rod or the output shaft of the drive motor, a plurality of longitudinal internal splines are arranged on the spline shaft, a plurality of external splines matched with the internal splines are arranged on the inner wall of the front end of the fixed shaft sleeve, and the torque of the drive motor is transmitted through the spline matching, so that the electric push rod can not only perform telescopic movement to adjust the distance between the L-shaped housing and the side surface of the bridge tower beam, but also transmit the torque of the drive motor.

[0012] Further, the longitudinal translation mechanism is two groups of screw-nut mechanisms, the screw-nut mechanism comprises a stepper motor, a threaded screw rod, and a screw-nut seat; the threaded screw rod is installed on the L-shaped housing through bearings at both ends, the stepper motor is connected in power transmission with the threaded screw rod, and the screw-nut seat is installed on the threaded screw rod in threaded cooperation and is fixedly connected with the air-heat deicing module.

[0013] Further, the air-heat deicing module comprises an air compression unit, an electromagnetic induction heating unit, and a plurality of porous annular nozzles, the porous annular nozzle comprises an annular pipeline made of conductive metal material and a plurality of spray holes arranged on the side of the annular pipeline close to the bridge tower beam; a plurality of annular pipelines are arranged side by side and connected in series through heat pipes and then fixed on the screw-nut seat of the screw-nut mechanism; the electromagnetic induction heating unit is an annular cavity provided with a plurality of porous annular nozzles and an electromagnetic induction coil for heating the annular cavity, and the electromagnetic induction coil is fixed synchronously with the annular pipeline or the screw-nut seat.

[0014] Further, the air compression unit comprises a blower and a gas storage tank connected in communication, the outlet of the gas storage tank outputs compressed gas flow into the gas storage tank through the blower, and then the compressed gas is introduced into the porous annular nozzle through the heat pipe, the compressed air in the porous annular nozzle is heated by the eddy current generated by the electromagnetic induction coil, and then the deicing of the bridge tower beam is performed through the spray holes on the porous annular nozzle.

[0015] Further, the gas-heat deicing module further comprises a heat auxiliary nozzle arranged at the bottom of the short side of the L-shaped shell, and a plurality of jet holes are arranged on the heat auxiliary nozzle to align with the bottom of the bridge tower beam; the heat auxiliary nozzle is communicated with the gas storage tank through a heat conduction pipe;

[0016] Further, the mechanical deicing module comprises an ice collecting tank, an ice breaking roller and an ice breaking cutter.

[0017] The ice collecting tank is arranged at the bottom of the short side of the L-shaped shell, and is used to collect the ice blocks peeled off from the wall surface and the bottom of the bridge tower beam during the deicing operation.

[0018] The ice breaking roller is arranged at the middle position of the top of the ice collecting tank and is directly driven by the deicing motor, and is used to remove the ice cone and the ice cover on the bottom of the bridge tower beam.

[0019] The ice breaking cutter is arranged at the inner bottom of the ice collecting tank and is driven by the ice breaking motor, and is used to further break the ice entering the ice collecting tank.

[0020] Further, the L-shaped shell is made of conductive metal, and the electromagnetic induction coil can generate eddy current to heat and deice the L-shaped shell.

[0021] Further, the bridge tower beam deicing device further comprises a control module, which is used to drive the horizontal translation mechanism and the longitudinal translation mechanism to carry the gas-heat deicing module to the corresponding position for deicing according to the icing information detected by the detection module, and drive the mechanical deicing module to deice.

[0022] Further, the detection module comprises a laser ranging radar for measuring the ice thickness on the bridge tower beam, a high-definition camera for identifying the icing condition of the windward surface and the lower edge of the bridge tower beam, and an environmental temperature sensor; the laser ranging radar is arranged on both sides of the outside of the L-shaped shell and is provided with multiple groups to realize the detection of the ice thickness at the front end of the path during the travel of the device.

[0023] Further, the ice breaking cutter is composed of a mounting disc, a fixing ring, an ice cutter and an ice outlet; the fixing ring fixes the mounting disc to the bottom of the ice collecting tank; the cutter is provided with a plurality of ice cutters; the ice blocks in the ice collecting tank are broken into snowflakes by the ice cutters and are directly discharged from the ice outlet.

[0024] Further, the heat conduction pipe comprises a first heat conduction pipe, a second heat conduction pipe and a third heat conduction pipe; the second heat conduction pipe is a heat preservation hollow pipe, is arranged on the inner wall of the shell, is connected to the gas storage tank at one end and is connected to the second heat auxiliary nozzle at the other end, and is used to conduct the residual heat in the gas storage tank into the second heat auxiliary nozzle.

[0025] Further, the third heat-conducting pipe is a heat-resistant hose, which is wound on the pipe winder, one end of which is connected to the gas storage tank, and the other end of which is connected to the first heat-conducting pipe, for guiding the high-pressure gas in the gas storage tank into the porous annular nozzle.

[0026] Further, the hot auxiliary nozzle comprises a first hot auxiliary nozzle arranged on the top of the ice collecting groove and a second hot auxiliary nozzle arranged on the side wall of the ice collecting groove.

[0027] Further, the porous annular nozzle and the hot auxiliary nozzle are both provided with a plurality of temperature sensors, which are connected to the comprehensive information processing module.

[0028] The present application provides a gas-heat and mechanical combined deicing method based on the bridge tower beam deicing device, which comprises the following steps:

[0029] S1, installing the bridge tower beam deicing device;

[0030] S2, starting the bridge tower beam deicing device, and starting the deicing step when the detection module detects that the windward surface or the bottom of the bridge tower beam is iced;

[0031] S3, driving the L-shaped shell to move to the bottom deicing area along the bridge tower beam through the transverse translation mechanism, and expanding the distance between the L-shaped shell and the bridge tower beam through the telescopic transmission shaft when the windward surface of the bridge tower beam is too thickly iced during the movement;

[0032] S4, starting the gas-heat deicing module and the mechanical deicing module, blowing hot air to the bridge tower beam through the gas-heat deicing module to melt and remove the ice, and driving the gas-heat deicing module to move up and down through the longitudinal translation mechanism to scan the bridge tower beam to blow hot air to remove the ice or to move to the iced area to accurately remove the ice; the ice on the bridge tower beam is peeled off and falls on the mechanical deicing module below under the action of the hot air, and the peeled ice is further crushed by the mechanical deicing module to prevent the large ice from falling to cause danger to pedestrians and vehicles; meanwhile, the mechanical deicing module can crush and remove the ice on the bottom of the bridge tower beam during the movement of the L-shaped shell along the bridge tower beam driven by the transverse translation mechanism.

[0033] The present application has the following beneficial effects:

[0034] 1) The present application provides a bridge tower beam deicing device based on air heating and mechanical deicing technology, the heat source adopts electromagnetic induction coil to heat the multi-hole annular nozzle, the advantage of this design is that the circulating gas in the annular nozzle can be heated twice at the same time, the heating speed is fast, the temperature is high, the device can be quickly heated, and the annular nozzle is perforated around, which can prevent the device shell surface from icing while removing the ice on the surface of the beam.

[0035] 2) The air heating deicing method of the windward wall surface of the beam can avoid the damage of the deicing device directly contacting with the wall surface of the beam; the ice roller at the bottom of the beam keeps a certain distance from the wall surface, which can remove the ice cone and thick ice layer at the bottom, and the high-temperature jet of the auxiliary deicing device can completely melt the thin ice layer remaining at the bottom.

[0036] 3) The "L" type deicing device provided by the present application has a special structure, which is provided with an ice collecting groove at the bottom of the "L" shape, which is used for collecting the ice blocks peeled off during deicing, and the ice blocks can be broken into snow and discharged directly from the bottom through the multiple deicing cutters in the ice collecting groove, which avoids the influence on the traffic of the bridge during the deicing operation.

[0037] The stainless steel shell of the device can isolate the internal air heating device from the external environment, form a relatively stable and closed working environment, reduce heat loss, facilitate multiple cycle heating of heat in the device, and avoid icing of the surface of the machine shell by residual heat. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the running state of the deicing device on the bridge tower beam of the present application;

[0039] Figure 2 is Figure 1 a schematic diagram of the side surface of the beam containing the deicing device;

[0040] Figure 3 is a schematic diagram of the overall structure of the deicing device in the present application;

[0041] Figure 4 is a schematic diagram of the control module in the present application;

[0042] Figure 5 is a schematic diagram of the moving platform structure in the present application;

[0043] Figure 6 is a schematic diagram of the air heating deicing module structure in the present application;

[0044] Figure 7 is a schematic diagram of the air heating deicing module in the present application;

[0045] Figure 8The schematic diagram of the mechanical deicing module structure mounted on the L-shaped shell in the application;

[0046] Figure 9 The schematic diagram of the single mechanical deicing module structure in the application;

[0047] Figure 10 The schematic diagram of the ice crushing cutter structure in the application; Figure 9 The schematic diagram of the ice crushing cutter structure in the application;

[0048] Figure 11 The schematic diagram of the ice crushing cutter structure in the application;

[0049] 1-bridge tower crossbeam, 3-L-shaped shell, 4-control module, 41-control box, 42-radiating fan, 43-motion control module, 44-comprehensive information processing module, 45-electromagnetic control module, 5-icing detection module, 51-laser ranging radar, 52-high-definition camera, 6-moving platform, 61-transverse translation mechanism, 611-driving motor, 612-motion wheel, 613-telescopic transmission shaft, 6131-key shaft, 6132-fixed shaft sleeve, 6133-steel ball, 6134-electric push rod, 6135-electricity taking ring, 6136-flange, 6137-telescopic end, 614-motion guide rail, 62-longitudinal translation mechanism, 621-stepping motor, 622-threaded screw rod, 623-screw nut seat, 624-bearing, 7-air heating deicing module, 71-electromagnetic induction heating unit, 711-electromagnetic induction coil, 712-supporting plate, 72-air compression unit, 721-blower, 722-gas storage tank, 73-tube coiler, 74-heat conducting pipe, 741-first heat conducting pipe, 742-second heat conducting pipe, 743-third heat conducting pipe, 75-multi-hole annular spray pipe, 76-thermal auxiliary spray pipe, 761-first thermal auxiliary spray pipe, 762-second thermal auxiliary spray pipe, 77-temperature sensor, 8-mechanical deicing module, 81-ice crushing cutter, 811-mounting disc, 812-ice cutter, 813-ice outlet, 814-fixing ring, 82-ice crushing roller, 83-ice collecting tank, 84-deicing motor, 85-ice crushing motor, 86-transmission tooth belt, 87-transmission gear, 88-limiting plate. DETAILED DESCRIPTION

[0050] The embodiments of the application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the application, but cannot be used to limit the scope of the application.

[0051] As Figures 1-3As shown, a bridge tower beam deicing device based on gas-heat and mechanical deicing technology includes a shell, a control module 4, an ice detection module 5, a mobile platform 6, a gas-heat deicing module 7 and a mechanical deicing module 8. The shell is an L-shaped shell 3 with an "L"-shaped cross section, so as to fit the windward side and the bottom area prone to icing of the bridge tower beam 1. Specifically, one side of the long side of the L-shaped shell fits the windward side of the bridge tower beam 1, and one side of the short side of the L-shaped shell fits the bottom area prone to icing of the bridge tower beam 1 (that is, the bottom edge close to the windward side). The control module 4 is installed on the top of the L-shaped shell 3. The ice detection module 5 includes a plurality of detection devices respectively arranged on the inside and outer wall of the L-shaped shell 3. The mobile platform 6 includes a transverse translation mechanism 61 installed on the top and bottom of the L-shaped shell 3, and a longitudinal translation mechanism 62 installed inside the cavity of the L-shaped shell 3. The transverse translation mechanism 61 is used to drive the entire L-shaped shell 3 to move back and forth along the bridge tower beam 1, and the longitudinal translation mechanism 62 is used to drive the gas-heating deicing module 7 to move up and down along the inside of the L-shaped shell 3; the gas-heating deicing module 7 is installed inside the cavity of the L-shaped shell. During the deicing operation, the gas-heating deicing module 7 is close to the ice layer but does not directly contact the ice on the surface of the bridge tower beam 1. The mechanical deicing module 8 is installed at the "L"-shaped bottom of the L-shaped shell 3 to receive the fallen ice and crush it and discharge it.

[0052] As a preferred embodiment, the L-shaped shell 3 is made of stainless steel metal, has good thermal conductivity, and can conduct waste heat in the cavity. At the same time, the stainless steel L-shaped shell 3 can cut part of the magnetic lines generated by the electromagnetic induction heating module 7, and generate eddy currents inside the L-shaped shell 3 to generate heat, thereby avoiding the risk of falling ice caused by ice covering the L-shaped shell 3 of the device when it is in working state.

[0053] like Figure 4 As shown, the control module 4 includes a control box 41 installed on the top of the L-shaped shell 3, a cooling fan 42 fixed to the surface of the control box 41, and a motion control module 43, a comprehensive information processing module 44 and an electromagnetic control module 45 installed inside the control box 41. The motion module 43 is mainly used to control the lateral translation mechanism 61 and the longitudinal translation mechanism 62 to complete the precise de-icing operation of the windward wall and bottom edge of the bridge tower beam 1. The comprehensive information processing module 44 is mainly used to collect and process real-time data from the laser ranging radar 51, the high-definition camera 52 and the temperature sensor 77 and feed the information back to the corresponding control module. The electromagnetic control module 45 is mainly used to generate high-frequency alternating current to generate a high-frequency magnetic field in the electromagnetic induction coil 711, so as to heat the porous annular nozzle 75 and part of the L-shaped shell 3.

[0054] It should be noted that the motion control module 43, the comprehensive information processing module 44 and the electromagnetic control module 45 can use controllers commonly used in the technology, which is not the improved invention point of the present invention. The specific brand and type used has no real impact on the technical solution of the present invention.

[0055] The detection module 5 can select detection equipment in the existing technology as needed, such as a laser ranging radar 51 and a high-definition camera 52. The laser ranging radar 51 is arranged on both sides of the outside of the L-shaped shell 3 and is provided with multiple groups to detect the thickness of ice at the front end of the path during the movement of the device. The comprehensive information processing module 44 analyzes the collected data and makes a judgment, and then transmits the feedback information to the motion control module 43 to control the extension and contraction of the electric push rod 613[1]4 of the lateral translation mechanism 61 to avoid collision between the device and the ice on the wall of the bridge tower beam 1; At the same time, a group of high-definition cameras 52 are arranged inside the L-shaped shell 3 to identify the ice coverage on the windward surface and lower edge of the bridge tower beam 1. The comprehensive information processing module 44 analyzes the collected data and makes a judgment, and then transmits the feedback information to the motion control module 43, thereby controlling the lateral translation mechanism 61 to drive the mechanical deicing module 8 and the gas-heat deicing module 7 to follow the deicing device to accurately remove the ice cones and ice at the bottom of the bridge tower beam 1, and at the same time control the longitudinal translation mechanism 62 to drive the multi-hole annular nozzle 75 to accurately heat the ice-covered position on the wall of the bridge tower beam 1.

[0056] like Figure 5 The figure shows the mobile platform 6 of the device of the present invention, which includes a lateral translation mechanism 61 and a longitudinal translation mechanism 62. The lateral translation mechanism 61 comprises a set of drive modules, respectively located at the top and bottom of the L-shaped housing 3. Each drive module comprises a motion guide rail 614 mounted on the bridge tower beam 1, a motion wheel 612 embedded in each motion guide rail 614, and a drive motor 611 that drives the corresponding motion wheel 612. The drive motor 611 is fixed to a corresponding position on the L-shaped housing 3. The output shaft of the drive motor 611 is connected to the motion wheel 612 via a telescopic transmission shaft 613. The telescopic movement of the telescopic transmission shaft 613 can adjust the distance between the L-shaped housing 3 and the side of the bridge tower beam 1. In combination with the laser ranging radar 51, the deicing device has autonomous obstacle avoidance capabilities and can adapt to deicing operations with varying ice thicknesses on the beam wall.

[0057] like Figure 5As shown, the longitudinal translation mechanism 62 is two groups of screw-nut mechanisms, which include a stepper motor 621, a threaded screw 622 and a screw-nut base 623. The bottom end of the threaded screw 622 is connected with the transmission shaft of the stepper motor 62, and the top end is installed on the inner top surface of the cavity of the outer shell 3 through a bearing 624. The screw-nut base 623 is installed on the threaded screw 622 through threaded cooperation and is fixedly connected with the air-thermal deicing module 7. The rotation of the stepper motor 621 drives the threaded screw 622 to rotate, and drives the screw-nut base 623 to move up and down along the threaded screw 622, thereby driving the air-thermal deicing module 7 to move up and down along the wall surface of the bridge tower beam 1.

[0058] As a preferred embodiment, the telescopic transmission shaft 613 includes an electric push rod 6134, a spline shaft 6131 and a fixed shaft sleeve 6132. The tail end of the electric push rod 6134 is coaxially fixed on the output shaft of the driving motor 611 through a flange 6136. The telescopic end 6137 of the electric push rod 6134 is coaxially fixed with one end of the spline shaft 6131. The other end of the spline shaft 6131 is fixedly connected with the axle of the moving wheel 612. The fixed shaft sleeve 6132 is sleeved around the electric push rod 6134 and the spline shaft 6131 and is fixed on the flange 6136 at the tail end of the electric push rod 6134. The spline shaft 6131 is provided with a plurality of inner splines arranged in the longitudinal direction. The inner wall of the fixed shaft sleeve 6132 is provided with a plurality of outer splines matched with the inner splines. The outer diameter of the telescopic end 6137 of the electric push rod 6134 is smaller than the outer diameter of the spline shaft 6131. Through the spline cooperation, the electric push rod 6134 can not only perform telescopic movement to change the distance between the L-shaped outer shell 3 and the side surface of the bridge tower beam 1, but also transmit the torque of the driving motor 611 to the moving wheel 612. In this embodiment, the outer splines are a plurality of steel balls 6133 arranged in the axial direction, and the inner splines are sliding grooves arranged in the axial direction on the spline shaft 6131. Through the sliding mode of the steel balls 6133 in the sliding grooves, the spline shaft 6131 can slide axially relative to the fixed shaft sleeve 6132 and can prevent the relative axial rotation of the two.

[0059] As a preferred embodiment, the electric push rod 6134 takes power through a power taking ring 6135. Specifically, the power taking ring 6135 is coaxially fixed on the motor base body of the driving motor 611. The tail end of the electric push rod 6134 is provided with a power taking brush matched with the power taking ring 6138. Through the annular movement of the power taking brush on the power taking ring 6135, the problem of free rotation of the electric push rod 6134 is solved, and the problem of power supply of the electric push rod 6134 is also solved.

[0060] As shown in FIG. 6, the telescopic transmission shaft 613 is arranged in the cavity of the outer shell 3. The telescopic transmission shaft 613 is arranged in the cavity of the outer shell 3 through the fixed shaft sleeve 6132. The telescopic transmission shaft 613 is arranged in the cavity of the outer shell 3 through the fixed shaft sleeve 6132. Figure 6 and Figure 7As shown, as a specific embodiment, the air heating deicing module 7 includes an electromagnetic induction heating unit 71, an air compression unit 72, a pipe coiler 73, a heat conducting pipe 74, a porous annular jet pipe 75, a thermal auxiliary jet pipe 76, and a temperature sensor 77.

[0061] The porous annular jet pipe 75 includes annular pipes made of conductive metal material and a plurality of jet holes arranged on one side of the annular pipe close to the bridge tower beam; a plurality of annular pipes are arranged in parallel and connected in series by the first heat conducting pipe 741 and then fixed on the screw nut seat 623 of the screw nut mechanism; the plurality of annular pipes can be connected in series by the first heat conducting pipe 741 and supported by the first heat conducting pipe 741 to form a whole, or connected by a connecting piece to form a whole, and then connected to the screw nut seat 623. The electromagnetic induction heating unit 71 is an electromagnetic induction coil 711 arranged in the annular cavity of the porous annular jet pipe and heated, and the electromagnetic induction coil 711 is fixed synchronously with the annular pipe or the screw nut seat, which can be connected to the screw nut seat 623 by a connecting piece to keep synchronous movement with the porous annular jet pipe 75.

[0062] The application has a hot air generating system inside the device, the air blower 721 outputs high-speed gas flow into the gas storage tank 722, the gas flow is guided into the porous annular jet pipe 75 through the third heat conducting pipe 743, the porous annular jet pipe 75 is sleeved outside the electromagnetic induction coil 711 for rapid heating by the coil, the porous annular jet pipes 75 are connected in series by the first heat conducting pipe 741, the air inside the pipe is in full contact with the wall of the heated porous annular jet pipe 75 and is heated into high-temperature hot gas flow to heat and melt ice on the wall of the bridge tower beam; to avoid ice formation on the surface of the shell of the mechanical deicing module 8, the second heat conducting jet pipe 742 guides the waste heat gas collected in the gas storage tank 722 into the first thermal auxiliary jet pipe 761 and the second thermal auxiliary jet pipe 762; a plurality of thermocouple temperature sensors 77 are arranged on the surfaces of the porous annular jet pipe 75 and the thermal auxiliary jet pipe 76 to measure the temperature of the thermal jet, and the data information is transmitted to the comprehensive information processing module 44 to feed back to the electromagnetic control module 45 to control the heating power of the equipment.

[0063] Further, the porous annular jet pipe 75 is made of stainless steel, and each porous annular jet pipe 75 is connected in series by the first heat conducting pipe 741 to form a whole, so that the magnetic lines generated by the electromagnetic induction coil 711 generate eddy currents inside the wall of the porous annular jet pipe 75, thereby realizing rapid heating of the compressed gas in the pipe.

[0064] Further, the second heat conducting pipe 742 is a heat preservation hollow pipe installed on the inner wall of the L-shaped shell 3, one end of which is connected to the gas storage tank 722, and the other end is connected to the second thermal auxiliary jet pipe 742, for guiding the waste heat in the gas storage tank 722 into the second thermal auxiliary jet pipe 742.

[0065] Further, the third heat pipe 743 is a heat-resistant hose, which is wound on the pipe winder 73, one end of which is connected to the gas storage tank 722, and the other end of which is connected to the first heat pipe 741, for guiding the high-pressure gas in the gas storage tank 722 into the porous annular nozzle 75. Of course, the third heat pipe 743 can also be a telescopic bellows.

[0066] Further, the thermal auxiliary nozzle 76 includes a first thermal auxiliary nozzle 761 arranged on the top of the ice collecting groove 83 and a second thermal auxiliary nozzle 742 arranged on the side wall thereof. Specifically, the first thermal auxiliary nozzle 761 is arranged parallel to the ice breaking roller 82 and is installed on the rear side thereof for heating to assist in removing the thin ice remaining on the bottom of the bridge tower beam 1. The second thermal auxiliary nozzle 742 is used for heating the side wall cavity of the ice collecting groove 83 to avoid the side wall from being iced.

[0067] As shown in Figures 8-11 , the mechanical deicing module 8 is composed of an ice crushing cutter 81, an ice breaking roller 82, an ice collecting groove 83, a deicing motor 84, an ice crushing motor 85, a transmission tooth belt 86, a transmission gear 87, and a limiting plate 88. The ice collecting groove 83 is arranged on the bottom of the L-shaped shell 3 for receiving the ice blocks peeled off from the wall surface and the bottom of the bridge tower beam 1 during the deicing operation. The ice breaking roller 82 is installed on the top of the ice collecting groove 83 at the middle position, and is directly driven by the deicing motor 84 to rotate at a high speed for removing the ice cone and the ice cover on the bottom of the bridge tower beam 1. The bottom of the ice collecting groove 83 is provided with three groups of ice crushing cutters 81. The ice crushing motor 85 drives each group of ice crushing cutters 81 to rotate at a high speed through the transmission tooth belt 86 and the transmission gear 87. The limiting plate 88 is installed on both sides of the transmission gear 87 to avoid the transmission tooth belt 86 from being displaced and falling off during the rotation.

[0068] Further, as shown in Figure 9 and Figure 11 , the ice crushing cutter 81 is composed of a mounting disc 811, an ice cutter 812, an ice outlet 813, and a fixing ring 814. The fixing ring 814 is used for fixing the mounting disc 811 to the bottom of the ice collecting groove 83. The mounting disc 811 is installed with a plurality of ice cutters 812. The ice blocks in the ice collecting groove 83 are broken into snowflakes by the ice cutters 812 and are directly discharged through the ice outlet 813.

[0069] The above embodiments are only used for describing the present application, but not limiting the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A bridge tower beam deicing device based on combined gas-thermal and mechanical deicing, comprising a housing, a detection module, a gas-thermal deicing module, and a mechanical deicing module, characterized in that: The shell is an L-shaped shell that can fit the windward side of the bridge tower beam and the ice-prone area at the bottom; The detection module is provided on the L-shaped housing and is used to detect the icing condition of the bridge tower beam; The L-shaped shell is mounted on the bridge tower beam via a transverse translation mechanism, and the transverse translation mechanism can drive the L-shaped shell to move back and forth along the bridge tower beam; The air-heat deicing module is installed on the inner side of the long side of the L-shaped shell through a longitudinal translation mechanism, and moves up and down along the inside of the L-shaped shell through the longitudinal translation mechanism to spray hot air to de-ice the side of the bridge tower beam; The mechanical de-icing module is arranged at the bottom of the short side of the L-shaped housing and is used to receive the fallen ice and crush it.

2. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to claim 1 is characterized by: The lateral translation mechanism includes motion guide rails arranged on the upper and lower sides of the bridge tower beam, motion wheels embedded in each motion guide rail and a drive motor driving the corresponding motion wheel, and the drive motor is fixed at the corresponding position on the L-shaped shell; the output shaft of the drive motor is connected to the motion wheel through a telescopic transmission shaft, and the distance between the L-shaped shell and the side of the bridge tower beam can be adjusted through the telescopic movement of the telescopic transmission shaft.

3. The bridge tower and crossbeam deicing device based on combined gas-thermal-mechanical deicing according to claim 2 is characterized by: The telescopic transmission shaft includes an electric push rod, a spline shaft and a fixed sleeve. The electric push rod itself is coaxially fixed on the output shaft of the driving motor. The free telescopic end of the electric push rod is coaxially fixed to one end of the spline shaft, and the other end of the spline shaft is fixedly connected to the moving wheel. The fixed sleeve is arranged around the electric push rod and the spline shaft, and is fixed on the seat body of the electric push rod or the output shaft of the driving motor. The spline shaft is provided with a plurality of longitudinally arranged internal splines, and the inner wall of the front end of the fixed sleeve is provided with a plurality of external splines that cooperate with the internal splines. Through the spline cooperation, the electric push rod can not only perform telescopic movement to adjust the distance between the L-shaped shell and the side of the bridge tower beam, but also transmit the torque of the driving motor.

4. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to claim 3 is characterized by: The longitudinal translation mechanism is composed of two sets of screw-nut mechanisms, which include a stepping motor, a threaded screw and a screw-nut seat; both ends of the threaded screw are installed on the L-shaped housing through bearings, the stepping motor is connected to the threaded screw for power transmission, and the screw-nut seat is installed on the threaded screw through threaded cooperation and is fixedly connected to the gas-heating deicing module.

5. The bridge tower and crossbeam deicing device based on combined gas-thermal-mechanical deicing according to claim 4 is characterized in that: The gas-heating deicing module includes an air compression unit, an electromagnetic induction heating unit and several porous annular nozzles. The porous annular nozzles include an annular pipe made of conductive metal material and several spray holes arranged on the side of the annular pipe close to the bridge tower beam; the several annular pipes are arranged in parallel and connected in series through a heat conducting pipe and then fixed on the screw nut seat of the screw nut mechanism; the electromagnetic induction heating unit is an electromagnetic induction coil that is provided with an annular inner cavity of several porous annular nozzles and heats the annular inner cavity, and the electromagnetic induction coil is synchronously fixed with the annular pipe or the screw nut seat.

6. The bridge tower and crossbeam deicing device based on combined gas-thermal-mechanical deicing according to claim 5 is characterized by: The air compression unit includes a connected blower and an air storage tank. The blower outputs a compressed gas flow from the outlet of the air storage tank into the air storage tank for storage, and then introduces it into a porous annular nozzle through a heat conduction pipe. The electromagnetic induction coil generates eddy currents in the porous annular nozzle to heat the compressed air inside the porous annular nozzle, and then the compressed air is sprayed out through the nozzle holes on the porous annular nozzle to de-ice the bridge tower beams.

7. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to claim 5, characterized in that: The gas-heat deicing module also includes a thermal auxiliary nozzle arranged at the bottom of the short side of the L-shaped shell. The thermal auxiliary nozzle is provided with a plurality of spray holes aligned with the bottom of the bridge tower beam. The thermal auxiliary nozzle is connected to the air storage tank through a heat conducting pipe.

8. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to claim 5, characterized in that: The mechanical deicing module includes an ice collecting trough, an ice breaking roller and an ice crushing blade; The ice collecting trough is provided on the bottom of the short side of the L-shaped shell and is used to collect ice cubes that fall off the beam wall and the bottom of the beam during de-icing operation; The ice-breaking roller is located in the middle of the top of the ice collecting trough and is directly driven by the de-icing motor to remove ice cones and ice accumulation at the bottom of the beam; The ice crushing blade disc is arranged at the bottom of the ice collecting trough and is driven by the ice crushing motor to further crush the ice entering the ice collecting trough.

9. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to claim 5, characterized in that: The L-shaped shell is made of conductive metal, and the electromagnetic induction coil can generate eddy current in the L-shaped shell to heat the L-shaped shell itself and remove ice.

10. The bridge tower beam deicing device based on combined gas-thermal-mechanical deicing according to any one of claims 1 to 9, characterized in that: The bridge tower beam deicing device also includes a control module, which is used to drive the lateral translation mechanism and the longitudinal translation mechanism to carry the gas-heat deicing module to the corresponding position for deicing according to the icing information detected by the detection module, and drive the mechanical deicing module for deicing.

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