26 results about "Snowmelt system" patented technology

The utility model relates to a cornice aluminum plate curtain wall construction system of an upright quadrangular pyramid grid roof built-in snow melting system. The cornice aluminum plate curtain wall construction system comprises a steel keel and concrete structure connecting system, a steel keel ground jig frame accurate assembling system, a steel keel whole truss hoisting system and a gutter cornice snow melting system. According to the steel keel and concrete structure connecting system, the transverse and vertical keels are reasonably stressed, the overall performance of the wall is good, the firmness degree of the steel keel and the building body is improved, and good technical and economic benefits are achieved; according to the precise assembling system for the steel keel ground jig frame, the auxiliary control assembling precision is improved, errors generated during construction assembling are reduced, the situation that assembling construction of keel units on the ground is inconvenient is avoided, and the assembling construction efficiency is improved; when the steel keel whole truss hoisting system hoists the keel main body, through limiting and fixing arrangement of the clamping pieces, the stability of the keel main body during use is guaranteed, and the construction risk of steel keel whole truss hoisting is reduced.

The invention provides a polar region photovoltaic module snow melting system, a snow melting control method and a polar region photovoltaic module, and belongs to the technical field of photovoltaic equipment. Comprising a snow melting unit arranged on the back surface of the photovoltaic panel, and the snow melting unit is suitable for melting accumulated snow on the photovoltaic panel through heating; the sensing unit is arranged on the photovoltaic panel and is suitable for acquiring a pressure value and a light transmission value of the front surface of the photovoltaic panel; and the signal processing unit is suitable for acquiring the pressure value and the light transmission value, and controlling the snow melting operation of the snow melting unit based on the pressure value and the light transmission value. Efficient and automatic snow melting of the photovoltaic module under the extreme weather condition can be realized, and the stability and continuity of power supply are ensured.

To provide a construction method of a water spray-type snow melting device capable of easily adjusting the height of an upper- end surface of a concrete form installed on a construction surface, and an auxiliary form member usable for the same.SOLUTION: Auxiliary form members 12 (1) and 12 (2) are prepared which are respectively attached to the upper-end parts of buried form members 10 (1) and 10 (2) are used as the upper-end parts of concrete forms 18 (1) and 18 (2), and can adjust the heights of the upper-end surfaces 18a (1) and 18a (2) of the concrete forms 18 (1) and 18 (2) by adjusting the attachment heights with respect to the buried form members 10 (1) and 10 (2). The mounting height of the auxiliary form members 12 (1), 12 (2) to the buried form members 10 (1), 10 (2) is adjusted in an installation step K12 of the concrete form or the like, and the heights of the upper-end face 18a (1), 18a (2) are matched with the nozzle 40b.SELECTED DRAWING: Figure 7

The present application belongs to the field of geothermal energy development and utilization, bridge engineering, and deicing and snow melting technology, and proposes a heat exchange pipe maintenance and intelligent operation and maintenance control method for an energy pile active bridge deck deicing and snow melting system, which comprises an energy pile active bridge deck deicing and snow melting federated learning operation and maintenance control model and a heat exchange pipe maintenance device based on electromagnetic induction principle; the energy pile active bridge deck deicing and snow melting federated learning operation and maintenance control model preliminarily judges and makes alarm positioning, and the heat exchange pipe maintenance device based on electromagnetic induction principle carries out fine repair work; the damaged point is repaired by automatic repair agent or the inner layer pipe is unscrewed. The heat exchange pipe maintenance device based on electromagnetic induction principle comprises a double-layer intelligent heat exchange pipe structure, a micro magneto-electric sensor, a cable storage tray, a data automatic acquisition instrument and a control end. The present application realizes fine control management and early warning of the energy pile active bridge deck deicing and snow melting system, accurately positions and repairs the damaged point, globally and accurately controls the snow melting system, and improves the deicing and snow melting efficiency.

The invention relates to a strip-shaped electromagnetic heating element suitable for an electromagnetic heating turnout snow melting system, which is characterized in that the strip-shaped electromagnetic heating element for the electromagnetic heating turnout snow melting system comprises a protective shell (4), an iron core (5), a winding (6), a wiring end plate (7), an end head (8), an integral insulation encapsulation body (9), a protective layer (10) and a heating strip lead (11), a main shell body of the long-strip-shaped protective shell (4) is of a U-shaped groove structure and is made of a non-magnetic-conductive material. The iron core (5) is composed of at least one ferrite magnetic core unit and installed in the U-shaped groove of the protective shell (4), and the magnetic circuit matching face of the iron core faces an external steel rail to be heated. The strip-shaped electromagnetic heating element is fixed on the turnout steel rail through the elastic clamp, the turnout is heated in a heating mode of converting electromagnetic energy into heat energy, the strip body does not emit heat, the heating efficiency is improved, installation and maintenance are convenient, and reliability is higher.

This system provides a low-cost and highly energy-efficient geothermal snow melting system by inducing geothermal heat from buried pipes and blowing it onto roofs to melt snow. [Solution] The underground heat snow melting system 1 of the present invention comprises a downpipe 10 whose upper end is connected to the roof A1 of structure A and whose lower end is connected to an underground pipe B, a first guide means 21 positioned near the underground pipe B of the downpipe 10, and a second guide means 22 positioned above the first guide means 21 of the downpipe 10, wherein the system is configured such that the first guide means 21 heats up to guide the warm air in the underground pipe B into the downpipe 10, and the second guide means 22 heats up to push the warm air in the downpipe 10 upwards so that it can be blown out toward the roof A1 of structure A.

The invention relates to the technical field of railway turnout snow melting control, in particular to a power consumption adjusting method and system for railway turnout snow melting, and the method comprises the following steps: obtaining information of a train approaching a specific turnout area, the train information comprising train category information and train operation state information, and according to the train information, determining the power consumption of the train according to the train category information and the train operation state information; judging whether the train is in a static state of the specific turnout area or not; when the train is in the static state, the current operation mode of the snow melting system is maintained, and meanwhile train operation instruction information from a dispatching system is obtained; according to the train operation instruction information, whether preheating operation on the specific turnout area is triggered or not is judged; the static state of the train in the turnout area is actively recognized, preheating is carried out in combination with a dispatching instruction, and subsequent secondary freezing detection and short-time ice melting are carried out, so that the problem of turnout jamming caused by compaction of an ice layer during the static period of the train is effectively solved.

The application provides an integrated water chilling unit structure for an ice rink, comprising a cooling water snow melting system, a main machine refrigerant system and a chilled water system; the cooling water snow melting system and the chilled water system are arranged on the two sides of the main machine refrigerant system; the chilled water system comprises a first chilled water pipeline and a second chilled water pipeline; the main machine refrigerant system comprises a first evaporator unit, a second evaporator unit, a first condenser unit and a second condenser unit; a first use side is connected with the first evaporator unit through the first chilled water pipeline; and a second use side is connected with the second evaporator unit through the second chilled water pipeline. The integrated water chilling unit structure for the ice rink is characterized by integration and modularization, solves the problems of transportation and structural layout, and is convenient for on-site installation and maintenance.

This invention discloses a power regulation module, comprising: a time base circuit for outputting a clock signal to a reversible counter circuit; a reversible counter circuit connected to the time base circuit for performing real-time reverse counting upon receiving the clock signal from the time base circuit, and after the count reaches a predetermined reverse counting duration, performing frequency division processing on the clock signal, and then outputting a corresponding digital signal to a first thyristor output circuit and a second thyristor output circuit; the first thyristor output circuit and the second thyristor output circuit are respectively connected to the reversible counter circuit, for driving the thyristors to output operating voltage according to the time-division digital signal sent by the reversible counter circuit. This invention can meet the power supply requirements of newly added electric heating elements without increasing the capacity of the existing snow melting transformer supplying power to the electric heating elements of the turnout snow melting system, solving the power supply problem of the newly added electric heating elements, and has significant practical significance.

To provide snow melting devices and snow melting systems that can reduce the likelihood of snow falling. [Solution] The snow melting device 100 comprises a support base 10 with a water storage recess 13 formed on its upper surface, and a heater 20 for heating the water stored in the storage recess 13. A drainage mechanism 7 for discharging the water stored in the storage recess 13 is formed in the support base 10. In a plan view, the storage recess 13 is formed inward from the outer peripheral edge 42b of the upper surface of the support base 10. For example, in a plan view, the storage recess 13 is formed at a position that includes the center of the upper surface of the support base 10.

The application discloses a snow-melting device of a snow-removing vehicle and a snow-melting system design method, belongs to the technical field of road snow-removing, and the snow-melting device of the snow-removing vehicle comprises a heat-preservation control box, a heating device with a heating disc, a snow-removing device with a scraper blade group and a snow-melting control system, and the scraper blade group is arranged above the heating disc and continuously scrapes and presses the accumulated snow. The snow-melting device of the snow-removing vehicle can scrape and press the accumulated snow, ensures close adhesion of the accumulated snow and the heating disc, and has high snow-melting efficiency. The snow-melting effect is good, and the energy utilization rate is effectively improved. Meanwhile, the snow-melting system design method can rely on the designed snow-melting system with a fuzzy controller, optimizes the snow-melting capacity of the snow-melting device of the snow-removing vehicle, and improves the snow-melting effect.

The utility model discloses a heat conduction device of a railway turnout snow melting system. The heat conduction device comprises a heat conduction plate, an insulating layer and a heat preservation layer. The heat conduction device is characterized in that graphite is used as a heat conduction plate in the heat conduction device, a mica insulation layer and a polyurethane heat preservation layer are arranged on the surface, making contact with air, outside the graphite, a metal buckle is arranged outside the heat conduction device, the heat conduction device is installed on the two sides of the sliding bed table through the metal buckle, and the heat conduction device and the sliding bed table are connected together; and the metal buckle is fixed through the hexagonal head bolt and the hexagonal head nut. The heat conduction device provided by the utility model can transfer heat which is originally lost in the air by the heating strip to the slide table, the slide plate and the switch rail, so that the heat efficiency and the snow melting efficiency of the snow melting system are improved, the use of electric energy is reduced, and resources are saved; the thermal uniformity of graphite is good, so that the strength of the sliding table is effectively prevented from being influenced by over-high temperature at a certain position; when individual heat conduction devices are damaged due to extrusion and collision, the heat conduction devices on the sides of the slide plate can be independently disassembled, the practicability is good, and maintenance is convenient.

The invention discloses an unpowered carbon dioxide spiral loop heat pipe shallow geothermal road snow melting system which comprises a carbon dioxide spiral loop heat pipe arranged below a road surface, and the carbon dioxide spiral loop heat pipe comprises a spiral pipe evaporation section, an ascending air pipe, a descending liquid pipe, a multi-U-shaped pipe condensation section and a backflow suppressor which are communicated with one another; the spiral pipe evaporation section, the ascending air pipe, the descending liquid pipe and the backflow suppressor are vertically buried in a drill hole of a rock-soil body below a roadbed, and the multi-U-shaped pipe condensation section is horizontally buried in the roadbed. A spiral pipe evaporation section of the system absorbs terrestrial heat and vaporizes a working medium, an ascending gas pipe penetrates through a variable temperature layer to convey a gas phase to a multi-U-shaped pipe condensation section located below a pavement structure layer, and the working medium releases heat to the pavement and condenses; and the condensate flows to the reflux suppressor through the down liquid pipe and then returns to the evaporation section of the spiral pipe to form closed circulation. The whole system is compact in structure, high in heat transfer efficiency, flexible in arrangement and suitable for freezing prevention and snow melting of complex scenes such as ramps, sidewalks and bridge floors.

The invention relates to the technical field of road snow melting, in particular to a phase-controlled eddy current and phase change energy storage double-effect complementary road snow melting system which comprises a plurality of alternating magnetic field generating devices, the alternating magnetic field generating devices are installed on the two sides of a road surface respectively, and the alternating magnetic field generating devices are used for generating alternating magnetic fields; a heating material and a phase change material are doped into the pavement; the heating material comprises a metal conductor and carbon fibers; the heating material can generate eddy current effect heating under the action of the alternating magnetic field, the phase change material can absorb heat energy of the eddy current effect to generate a phase change energy storage effect, and heat energy can be continuously released when the alternating magnetic field generating device is closed. Through a double-effect complementary mechanism of an eddy current effect and a phase change energy storage effect, under a high and cold region or an extreme meteorological condition, when the environment temperature is lower than the phase change temperature of the phase change material for a long time, the problem that the snow melting function of the phase change material fails due to the fact that the phase change material cannot absorb heat is solved, and the practical application range of the phase change material is expanded.

The present invention provides a snow melting system using heat rejection and a snow melting method using heat rejection, which achieve both efficient cooling of a stationary battery and reduction of the load of a structure by snow melting. A snow melting system using heat dissipation includes a heat recovery unit, a natural heat dissipation unit, and a cooling path in a structure that houses a stationary battery. The heat recovery unit recovers heat of the stationary battery. The natural heat dissipation unit naturally dissipates the recovered heat to the external environment. The cooling path connects the heat recovery unit and the natural heat dissipation unit and circulates the refrigerant. The natural heat dissipation section has a heat pipe provided in the vicinity of the snow accumulation section of the structure, and melts the snow in the snow accumulation section when the heat pipe is used to dissipate heat.

A road snow melting system suitable for a salt lake lithium mining area comprises a snowfall sensor and a heat storage tank, a conveying pipeline is arranged in the heat storage tank, a liquid medium is poured into the conveying pipeline, and the conveying pipeline forms a loop; nickel-based open-cell foam metal is arranged in a cavity, where the conveying pipeline is located, of the heat storage tank, a gap is filled with a composite heat storage medium, and the composite heat storage medium is a phase change energy storage material; a plurality of heat pipes are arranged above the heat storage tank at intervals in the straight line direction in a penetrating mode, the other ends of the heat pipes extend upwards and then are horizontally bent in the direction perpendicular to the straight line direction of the heat storage tank, and the heat pipes are covered with foam metal layers and multiple asphalt covering layers. Only a limestone soil subbase layer covers the upper portion of the heat storage tank, and the conveying pipeline is provided with a flow control valve. The opening and closing angle of the flow control valve corresponds to the snowfall sensor. Snow melting is carried out in the mode of pre-burying the pipeline, snow on a road can be hot-melted by arranging the composite heat storage medium, and the flow is automatically controlled.

According to the low-power-consumption turnout snow melting system and method, in the system, heat tracing cables are laid on steel rails of a plurality of turnout areas in groups and connected with the power output end of a comprehensive electric control cabinet; the comprehensive electric control cabinet is arranged beside a field rail and is in communication connection with the station control terminal through a bus; the station control terminal is arranged in a signal operation room and is connected with the remote control center through a communication network; the remote control center is arranged in a railway bureau or a segment-level dispatching center and is responsible for controlling the whole system; wherein an electrical control unit is integrated in the comprehensive electric control cabinet, and the electrical control unit comprises a programmable logic controller which is configured to execute an instruction of the station control terminal and control start and stop of the heat tracing cable. High-temperature series heat tracing cables are adopted to replace traditional heating strips, a highly-integrated comprehensive electric control cabinet is designed, a programmable logic controller is adopted to achieve accurate switching value control and electrical parameter monitoring, the system power consumption is low, maintenance is convenient, installation is easy, and the equipment integration degree is high.

The invention discloses a track turnout snow melting system and method based on PLC control. The track turnout snow melting system comprises a control device and a control assembly installed in the control device. The control device comprises a control cabinet body, the control assembly is installed in the control cabinet body, the control assembly comprises a central processing unit module, and the central processing unit module is connected with a digital quantity input module, a digital quantity output module and a PID control module through signals. The PID control module is used for generating control parameter signals and transmitting the control parameter signals to the central processing unit, and the central processing unit module obtains input signals through the digital quantity input module and outputs control instructions through the digital quantity output module. The heating power and time can be flexibly adjusted according to actual conditions, accurate snow melting is achieved, energy waste is avoided, the system has perfect fault detection and alarm functions, abnormal conditions can be found and handled in time, and the reliability and safety of the turnout snow melting system are guaranteed.

The invention discloses a current acquisition device and an electric heating turnout snow melting system. The current acquisition device comprises a current acquisition module and a plurality of current conversion modules, the current acquisition module comprises a plurality of alternating current transformers; each alternating current mutual inductor is used for collecting an original analog current signal on a heating loop used for supplying power to an electric heating element in an electric heating snow melting circuit on the electric heating turnout snow melting system, and then outputting the analog current signal to one current conversion module; each current conversion module is connected with one alternating current mutual inductor A in the current acquisition module; and the PLC module is connected with the current conversion module and is used for receiving the analog current signal output by the current conversion module and outputting a digital current signal to an external display device for display after analog-to-digital conversion. According to the invention, the magnitude of the energized current on the heating loop in the electric heating snow melting circuit can be reliably collected, the snow melting effect of the heating loop is prevented from being influenced by too low heating power of the electric heating element, and the operation safety of rail transit is guaranteed.

The utility model relates to the technical field of snow melting, and provides a metal roof snow melting system, which comprises a gas cylinder, a storage tank and a snow melting assembly, the snow melting assembly comprises an oscillator, a snow melting agent delivery pipe, a first gas delivery pipe and a second gas delivery pipe, the oscillator is communicated with the gas cylinder through the first gas delivery pipe, a pulse valve is arranged on the first gas delivery pipe, and the second gas delivery pipe is communicated with the storage tank. The storage tank is communicated with the first gas conveying pipe through a snow-melting agent conveying pipe, a pneumatic one-way valve is arranged on the snow-melting agent conveying pipe, one end of the second gas conveying pipe is connected to the gas cylinder, the other end of the second gas conveying pipe is connected to the snow-melting agent conveying pipe, and an electromagnetic valve is arranged on the second gas conveying pipe; the connecting point of the second gas conveying pipe on the snow melting agent conveying pipe is located on the inlet side of the pneumatic one-way valve. Sweeping type oscillating jet flow is generated by applying the coanda effect principle, and the cleaning efficiency of accumulated snow on the roof is enhanced. And meanwhile, synchronous conveying of the high-pressure gas and the snow melting agent is supported, and the snow melting efficiency is remarkably improved.

A roof snow melt system includes a drip edge cover having a drip edge cable platform and a drip edge S-bend; a first plate having a plate attachment strip insertable into the drip edge S-bend and a plate cable containment lip, the plate cable containment lip and drip edge cable platform to house a length of heat cable; a first valley end cap couplable to the at least one plate, the first valley end cap comprising an insertion lip formed at a valley cap C-shaped bend; and a valley plate to be coupled to a valley of a roof, the valley plate having a valley plate C-bend to receive the insertion lip of the first valley end cap to couple the valley end cap to the valley plate wherein the valley plate includes at least one valley plate containment lip to receive the length of heat cable.

Provided is a control device for controlling a snow melting system. The control device comprises: a power input unit to which AC power is input; at least two relay terminals connected to a plurality of heating coils to turn on / off a current applied to the heating coils; a sensor connection terminal unit to which a plurality of environmental sensors are connected; and a communication unit for communicating with an external manager terminal, wherein a first heating coil unit, which is part of the plurality of heating coils, is connected to a first relay terminal among the at least two relay terminals, a second heating coil unit, which is the remaining part of the plurality of heating coils, is connected to a second relay terminal among the at least two relay terminals, and the control device is configured to heat the plurality of heating coils in a preheating operation mode, in which the first heating coil unit and the second heating coil unit alternately operate, or in a main operation mode, in which the first heating coil unit and the second heating coil unit operate together, by a relay operation of the at least two relay terminals.

The invention discloses a control method, device and equipment of a railway turnout snow melting system and a medium. The railway turnout snow melting system comprises a plurality of heaters arranged on turnouts respectively and a power supply device for supplying power to the heaters, and a shell of the power supply device is provided with a power interface used for being connected with alternating-current mains supply and a plurality of output interfaces used for being connected with the heaters respectively. According to the control method, the on-off state of electric connection between the power interface of the power supply device and the corresponding output interface is controlled through the snow melting priority level determined according to the environment information of each turnout and the train passing information, so that the target heater is controlled to be powered to be in the working state; therefore, the power supply state of the heater can be quickly adjusted in response to power change. Therefore, according to the railway turnout snow melting system, the control method and device thereof and the medium provided by the embodiment of the invention, the power supply state of each heater can be switched in response to the snow melting priority quickly, and the safe operation performance of the railway turnout snow melting system can be effectively improved.

The present invention provides a method and system for controlling real-time monitoring of a snow accumulation state on a turnout. The method comprises: acquiring an image of a turnout region in real time; determining snow accumulation data of the turnout region by performing identification on the image of the turnout region; and controlling a snow-melting action on the turnout region on the basis of the snow accumulation data. According to the method and system for controlling real-time monitoring of a snow accumulation state on a turnout of the present invention, a snow accumulation image of each turnout is monitored in real time, and the snow accumulation image is converted into data information and provided to a snow-melting control system for accurately determining the snow accumulation state of each turnout. Therefore, a turnout having snow accumulation can be accurately heated, thereby achieving the functions of fine, accurate control and monitoring of a snow-melting system of a turnout.

To realize a more suitable mechanism for melting snow that accumulates on railway tracks. [Solution] A snow melting system comprising: a snow melting unit installed in the area between the rails of a railway track to melt snow accumulated on the railway track; a control device connected to the snow melting unit via a wireless communication path to control the operation of the snow melting unit, wherein the snow melting unit comprises: a plurality of sensor units, each individually installed at multiple locations in the area to detect the weight due to the load on the detection surface; and a snow melting device formed in a planar shape and installed to span the detection surfaces of each of the plurality of sensor units installed in the area, supported by the plurality of sensor units, and driven to release heat and melt snow, wherein the control device drives the snow melting device to melt the snow accumulated on the snow melting device when the statistical value of the weight detection results of each of the plurality of sensor units exceeds a threshold.

The invention discloses a test circuit and a test device of a power regulation module. The test circuit of the power regulation module comprises an alternating current power supply AC, a circuit breaker QF, output indicating lamps HL2-HL9, a compensation transformer T10, bidirectional silicon controlled rectifiers VS1-VS10, an adjustment transformer T20 and the power regulation module. An alternating current power supply AC is connected with one end of the primary side of the T10 through a circuit breaker QF; the other end of the primary side of the T10 is connected with one end of the power regulation module; the secondary side of the T10 is connected with an adjusting transformer T20 through bidirectional silicon controlled rectifiers VS1-VS10; and the HL2-HL9 are respectively connected with one power supply output end of the power regulation module. According to the invention, whether the power regulation module on the electric heating turnout snow melting system equipment can normally exert the time-sharing output function can be timely and reliably tested, and the test efficiency is ensured.