CN212128724U - Solar photo-thermal conversion-based ice and snow melting control system for bridge heated by circulating fluid - Google Patents
Solar photo-thermal conversion-based ice and snow melting control system for bridge heated by circulating fluid Download PDFInfo
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- CN212128724U CN212128724U CN202020668090.2U CN202020668090U CN212128724U CN 212128724 U CN212128724 U CN 212128724U CN 202020668090 U CN202020668090 U CN 202020668090U CN 212128724 U CN212128724 U CN 212128724U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model discloses a circulating fluid heating bridge ice and snow melting control system based on solar photothermal conversion includes: the device comprises a controller, a solar heat collector, a heat storage tank, a thermostat and bridge floor heating equipment arranged in a bridge floor structure; temperature detection equipment is arranged at the water inlet and outlet pipeline, the heat storage tank, the thermostat and the bridge floor water supply and return pipeline of the solar thermal collector, bridge floor temperature detection equipment is also arranged in the bridge floor structure, and the temperature detection equipment transmits measured temperature data to the controller; the controller is configured to issue a command of a response value to the corresponding driving device based on the measured temperature data to supply heat to the deck heating device. By means of the mode, automatic sensing and active melting of ice and snow on the bridge deck in winter can be achieved, meanwhile, active cooling of the bridge deck can be achieved after heat collection-heat storage circulation is closed in hot summer, and the purpose of prolonging the service life of the structure is achieved. The system can realize automatic operation after setting relevant temperature, snow thickness and water level limit value, and is green and environment-friendly.
Description
Technical Field
The utility model belongs to the technical field of the bridge floor initiative ice and snow removal, especially, relate to circulating fluid heating bridge ice and snow melting control system based on solar photothermal conversion.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In winter, the probability of road traffic jam and traffic accidents is increased due to rain and snow disasters, and great potential safety hazards and great economic loss are brought to highway operation. Meanwhile, rainwater permeates into the pavement to cause frost heaving, and the service life of the pavement is also seriously influenced. In addition, the bridge deck is in a suspended state, ground source heat cannot be obtained, compared with the road surface under the same environmental condition, the time for snow melting of the bridge deck is longer, and the damage of rain and snow disasters is more serious.
The inventor finds in research that the ice and snow melting systems in related experiments are manually controlled at present, only the road surface temperature is monitored, and automatic control of ice and snow melting of the bridge in winter and automatic control of bridge deck cooling in summer are not achieved.
Disclosure of Invention
In order to overcome the defects of the prior art, the solar photo-thermal conversion-based ice and snow melting control system for the bridge heated by the circulating fluid is provided, so that the problems that the ice and snow are melted actively in winter by the circulating fluid based on the solar photo-thermal conversion and the bridge deck is cooled down in summer, and automatic control cannot be realized are solved.
In order to achieve the above object, one or more embodiments of the present disclosure provide the following technical solutions:
circulating fluid heating bridge ice and snow melting control system based on solar photo-thermal conversion comprises:
the device comprises a controller, a solar heat collector, a heat storage tank, a thermostat and bridge floor heating equipment arranged in a bridge floor structure;
temperature detection equipment is arranged at the water inlet and outlet pipeline, the heat storage tank, the thermostat and the bridge floor water supply and return pipeline of the solar thermal collector, bridge floor temperature detection equipment is also arranged in the bridge floor structure, and the temperature detection equipment transmits measured temperature data to the controller;
the solar bridge floor heating system is characterized in that driving equipment is arranged on a water inlet pipeline of the solar heat collector, a water inlet pipeline of the heat storage box, a pipeline between the heat storage box and the constant temperature box, and a pipeline between the constant temperature box and the bridge floor structure, the driving equipment is connected to the controller, and the controller is configured to issue a response value instruction to the corresponding driving equipment based on measured temperature data to supply heat for the bridge floor heating equipment.
According to a further technical scheme, a heat storage tank water level sensor is further arranged in the heat storage tank and connected with the controller so as to transmit detected water level data to the controller.
According to a further technical scheme, at least one heat storage tank exhaust hole is formed in the top of the heat storage tank.
According to the technical scheme, a water replenishing pump is arranged on the water inlet pipeline of the heat storage tank and connected with the controller, and the water replenishing pump is configured to receive the instruction of the controller to supply power to replenish water in a water source into the heat storage tank when the water level of the heat storage tank is lower than a set value.
According to the further technical scheme, a thermostat pressure reducing valve is arranged at the top of the thermostat.
According to the technical scheme, a bridge deck circulating pump is arranged on a pipeline between the constant temperature box and the bridge deck structure, and the bridge deck circulating pump is configured to receive an opening instruction of the controller when the actual thickness of the bridge deck ice and snow exceeds a set thickness limit value, and provide power to enable the constant temperature box to supply heat to the bridge deck heating equipment and start to melt the bridge deck ice and snow.
According to the technical scheme, a temperature conversion circulating pump is arranged on a pipeline between the heat storage tank and the thermostat, the temperature conversion circulating pump is configured to be under the condition that the bridge deck circulating pump is started, and when the temperature value of the thermostat is smaller than a set lower limit value, the starting instruction of the controller is received to provide power so that the heat storage tank heats the thermostat.
According to the technical scheme, a water inlet pipeline of the solar heat collector is provided with a heat collection-storage circulating pump, and the heat collection-storage circulating pump is configured to receive an opening instruction of the controller to provide power to enable the solar heat collector to collect solar energy to heat the heat storage tank when the temperature value of outlet water of the heat collector is higher than that of the heat storage tank.
According to the further technical scheme, the accumulated snow ice sensor in the bridge deck structure collects the thickness of the bridge deck ice and snow and transmits data to the controller.
According to the further technical scheme, the controller is a PLC (programmable logic controller) and the PLC is connected with the human-computer interaction equipment.
The technical scheme further comprises a power supply and a short-circuit protector, wherein the power supply and the short-circuit protector are respectively connected to the PLC and the human-computer interaction equipment.
The above one or more technical solutions have the following beneficial effects:
the water inlet and outlet pipeline, the heat storage tank, the thermostat and the bridge floor water supply and return pipeline of the solar heat collector are all provided with temperature detection equipment, bridge floor temperature detection equipment is further arranged in the bridge floor structure, the controller is configured to issue a response value instruction to corresponding driving equipment based on measured temperature data, heat supply is carried out on the bridge floor heating equipment, automatic sensing and active melting of winter bridge floor ice and snow can be achieved through the mode, active cooling of the bridge floor can be achieved after heat collection-heat storage circulation is closed in hot summer, and the purpose of prolonging the service life of the structure is achieved. The system can realize automatic operation after setting relevant temperature, snow thickness and water level limit value, and is intelligent, reliable, green.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
FIG. 1 is a schematic diagram of the overall structure of a system according to an embodiment of the present disclosure;
in the figure, 1, a power supply and a short-circuit protector; 2. a PLC controller; 3. a human-computer interaction device; 4. a remote control device; 5. a snow and ice sensor; 6. a bridge deck temperature sensor; 7. a thermostat temperature sensor; 8. a bridge floor water supply temperature sensor; 9. a bridge floor backwater temperature sensor; 10. a heat storage tank temperature sensor; 11. a water inlet temperature sensor of the heat collector; 12. a water outlet temperature sensor of the heat collector; 13. an ambient temperature sensor; 14. a heat collection-storage circulating pump; 15. a temperature conversion circulation pump; 16. a bridge deck circulating pump; 17. a solar heat collector; 18. a heat storage tank; 19. a thermostat; 20. a bridge deck heating device; 21. a bridge deck structure; 22. a heat storage tank vent hole; 23. a thermostat pressure reducing valve; 24. a water replenishing pump; 25. and a heat storage tank water level sensor.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
The active snow melting technology of the circulating hot fluid can realize renewable energy utilization and cross-season energy storage, has higher energy utilization efficiency and environmental protection benefit, and is considered as a green and environment-friendly technology with the greatest development prospect and sustainable development by international public opinion.
The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting system generally comprises three cycles, namely a heat collection-heat storage cycle for collecting and storing solar photo-thermal, a heat exchange cycle for converting the temperature in a heat storage tank into a specific temperature range in order to avoid the bridge deck from bearing excessive temperature stress, and a bridge deck cycle for supplying heat (cold) to the bridge deck.
Example one
The embodiment discloses a circulating fluid heating bridge ice and snow melting control system based on solar photo-thermal conversion, which is shown in the attached drawing 1 and comprises a power supply, a short-circuit protector, a PLC (programmable logic controller) for receiving and analyzing data and outputting instructions, a man-machine interaction device and a remote operation system for setting parameters, a temperature sensor system, a circulating pump system, an snow ice sensor for judging the thickness of snow on a bridge deck, and a water level sensor for measuring the water level of a heat storage tank.
The temperature sensor system includes: the system comprises a bridge floor temperature sensor, a thermostat temperature sensor, a bridge floor water supply temperature sensor, a bridge floor water return temperature sensor, a heat storage tank temperature sensor, a heat collector water inlet temperature sensor, a heat collector water outlet temperature sensor and an environment temperature sensor; the accumulated snow ice sensor can be arranged on the surface of a road shoulder and can also be in a non-contact type (similar to a street lamp); the bridge floor temperature sensor is arranged on the road surface.
The water pump system includes: a heat collection-storage circulating pump, a temperature conversion circulating pump, a bridge deck circulating pump and a heat storage tank water replenishing pump.
The signal output ends of the temperature sensor system, the accumulated snow and ice sensor and the water level sensor are connected with the signal input end of the PLC, the human-computer interaction device is in interactive connection with the PLC, a system control logic set is formed according to set parameters, and the signal output end of the PLC is connected with the water pump system to form control over heat collection-heat storage circulation, heat exchange circulation and bridge floor circulation.
When the intelligent control system works specifically, after the control system is electrified and started, the limit values of the temperature sensors, the thickness limit value of snow and ice and the limit value of the water level sensor 25 of the heat storage tank are set for the human-computer interaction equipment 3 through the remote control equipment 4.
The set limit values of the temperature sensors are as follows: the upper limit value and the lower limit value of the bridge deck temperature sensor 6; the upper limit value and the lower limit value of the thermostat temperature sensor 7; the upper limit value (winter), the lower limit value (winter), the upper limit value (summer) and the lower limit value (summer) of the temperature difference between the bridge floor water supply temperature sensor 8 and the bridge floor water return temperature sensor 9; the upper limit value (positive number) and the lower limit value (positive number) of the temperature difference between the collector inlet water temperature sensor 11 and the collector outlet water temperature sensor 12; an upper limit value and a lower limit value of the ambient temperature sensor 13. Setting the thickness of the accumulated snow and the ice as a thickness limit value; the water level limit of the heat storage tank water level sensor 25 is provided with an upper limit value and a lower limit value.
The PLC controller 2 receives actual ice and snow thickness value signals measured by the accumulated ice and snow sensor 5 and actual outdoor temperature value signals measured by the bridge floor temperature sensor 6, the thermostat temperature sensor 7, the bridge floor water supply temperature sensor 8, the bridge floor water return temperature sensor 9, the heat storage tank temperature sensor 10, the collector inlet water temperature sensor 11, the collector outlet water temperature sensor 12 and the environment temperature sensor 13 from a control logic in the system to calculate and analyze, and makes corresponding instructions to control whether the heat collection-heat storage circulating pump 14, the temperature conversion circulating pump 15 and the bridge floor circulating pump 16 work and flow, and further realize solar energy collection, heat storage, heat transfer and the automatic control of bridge floor snow melt ice in winter and bridge floor cooling in summer.
And when the actual temperatures monitored by the bridge deck temperature sensor 6 and the environment temperature sensor 13 are continuously lower than the lower limit values of the respective set temperature parameters for several days, the control system executes a winter ice and snow melting mode, and when the actual temperatures monitored by the bridge deck temperature sensor 6 and the environment temperature sensor 13 are continuously higher than the upper limit values of the respective set temperature parameters for several days, the control system starts to execute a summer bridge deck cooling mode.
In the mode of melting ice and snow in winter:
when the temperature value measured by the water outlet temperature sensor 12 of the heat collector is higher than the temperature value measured by the heat storage tank temperature sensor 10, the heat collection-heat storage circulating pump 14 is started, and the solar heat collector 17 collects solar energy to heat the heat storage tank 18; otherwise, the heat collection-storage circulating pump 14 is closed, and heat collection is stopped; in order to improve the heat storage efficiency, when the temperature difference measured by the heat collector inlet water temperature sensor 11 and the heat collector outlet water temperature sensor 12 is greater than a set upper limit value (positive number), the flow of the first-stage heat collection-heat storage circulating pump 14 is increased; when the temperature difference measured by the collector inlet water temperature sensor 11 and the collector outlet water temperature sensor 12 is smaller than a set lower limit value (positive number), the flow of the first-stage heat collection-storage circulating pump 14 is reduced.
When the actual thickness of the bridge deck ice and snow measured by the accumulated snow ice and snow sensor 5 exceeds a set thickness limit value, the bridge deck circulating pump 16 is started, the thermostat 19 supplies heat to the bridge deck heating equipment 20 and starts to melt the bridge deck ice and snow, the process is continued until the actual thickness of the bridge deck ice and snow is less than the set thickness limit value, time delay is carried out for a period of time to ensure that the accumulated snow is completely melted, the extended time is set through the human-computer interaction equipment 2, the bridge deck circulating pump 16 stops working when the set snow melting time is prolonged, and the bridge deck heating; in order to further improve the heating efficiency of the bridge floor, when the temperature difference measured by the bridge floor water supply temperature sensor 8 and the bridge floor water return temperature sensor 9 is greater than a set upper limit value (in winter), the flow of the primary bridge floor circulating pump 16 is increased; when the temperature difference measured by the bridge floor water supply temperature sensor 8 and the bridge floor water return temperature sensor 9 is smaller than a set lower limit value (in winter), the flow of the primary bridge floor circulating pump 16 is reduced.
The bridge floor structure is asphalt surface course, cement concrete leveling layer and beam slab structure from top to bottom, and the heating device of this disclosed embodiment buries underground below the bridge floor asphalt surface course, cement concrete leveling layer top.
Under the condition that the bridge deck circulating pump 16 is started, and when the temperature value measured by the thermostat temperature sensor 7 is smaller than a set lower limit value, the temperature conversion circulating pump 15 is started, and the heat storage tank 18 heats the thermostat 19; under the condition that the bridge deck circulating pump 16 is started, and when the temperature value measured by the thermostat temperature sensor 7 is greater than the set upper limit value, the temperature conversion circulating pump 15 is turned off, and the heat storage tank 18 stops heating the thermostat 19.
In addition, in order to prevent the circulating medium from freezing and damaging the normal operation of the system, three circulating pipelines of the system are provided with an anti-freezing protection cycle. When the temperature values measured by the bridge floor backwater temperature sensor 9, the thermostat temperature sensor 7 and the heat collector inlet water temperature sensor 11 are lower than the specified temperature (for example, 0 ℃), the heat collection-storage circulating pump 14, the temperature conversion circulating pump 15 and the bridge floor circulating pump 16 are respectively and automatically opened for a certain time and then closed.
In the summer bridge floor cooling mode:
the heat collection-storage circulating pump 14 is always in a closed state, the heat storage tank 18 is not heated by the solar heat collector 17, and meanwhile, in order to prolong the service life of the solar heat collector 17, a light shielding protection measure can be taken.
When the actual temperature value measured by the bridge deck temperature sensor 6 is greater than the set upper limit value, the bridge deck circulating pump 16 is started, the medium with relatively low temperature in the constant temperature box 19 is pumped to the bridge deck, the high-temperature bridge deck structure 21 is cooled, and the bridge deck circulating pump 16 is closed until the actual temperature value measured by the bridge deck temperature sensor 6 is smaller than the set upper limit value.
Along with the circulation of the bridge floor, when the actual temperature measured by the thermostat temperature sensor 7 is higher than the set upper limit value, the temperature conversion circulating pump 15 is started, the heat storage tank 18 with relatively large volume cools the thermostat 19, and the temperature conversion circulating pump 15 is closed until the actual temperature value measured by the thermostat temperature sensor 7 is lower than the set upper limit value.
Aiming at special conditions, when one or more 13 of the accumulated snow ice sensor 5, the bridge floor temperature sensor 6, the thermostat temperature sensor 7, the bridge floor water supply temperature sensor 8, the bridge floor water return temperature sensor 9, the heat storage tank temperature sensor 10, the heat collector water inlet temperature sensor 11, the heat collector water outlet temperature sensor 12 and the environment temperature sensor fails, the heat collection-heat storage circulating pump 14, the temperature conversion circulating pump 15 and the bridge floor circulating pump 16 can be manually opened or closed through the human-computer interaction equipment 2, so that manual control of heat collection, heat storage, heat exchange and heat (cold) supply is realized, and the reliability of the system is enhanced.
The human-computer interaction device 2 can perform parameter setting on site through a terminal device, and can also perform parameter setting remotely through a computer, a tablet or a mobile phone.
The deck heating device 20 has various forms, and may be a pipe made of various materials, or a heat pipe specially designed and processed.
The heat storage tank 18 is filled with heat storage media in various forms, heat preservation measures are arranged outside the heat storage tank, the top of the heat storage tank is provided with an exhaust hole 22 for maintaining balance of internal pressure and external pressure of the heat storage tank, the embodiment is described by taking medium water as an example, when the water level value measured by the water level sensor 25 is smaller than the lower limit value of the set value, the water replenishing pump 24 is started to replenish water for the heat storage tank 18, and the water level value is continuously larger than the upper limit value of the set value of the water level sensor 25 until the water level value is smaller than.
The power supply and short circuit protector 1 is a PLC (programmable logic controller) 2, a man-machine interaction device 3, an accumulated snow ice sensor 5, a bridge deck temperature sensor 6, a thermostat temperature sensor 7, a bridge deck water supply temperature sensor 8, a bridge deck water return temperature sensor 9, a heat storage tank temperature sensor 10, a heat collector water inlet temperature sensor 11, a heat collector water outlet temperature sensor 12, an environment temperature sensor 13, a heat collection-heat storage circulating pump 14, a temperature conversion circulating pump 15, a bridge deck circulating pump 16, a water replenishing pump 24 and a water level sensor 25 provide electric energy, and strong current and weak current are separated to realize respective control.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. Circulating fluid heating bridge ice and snow melting control system based on solar photo-thermal conversion is characterized by comprising:
the device comprises a controller, a solar heat collector, a heat storage tank, a thermostat and bridge floor heating equipment arranged in a bridge floor structure;
temperature detection equipment is arranged at the water inlet and outlet pipeline, the heat storage tank, the thermostat and the bridge floor water supply and return pipeline of the solar thermal collector, bridge floor temperature detection equipment is also arranged in the bridge floor structure, and the temperature detection equipment transmits measured temperature data to the controller;
the solar bridge floor heating system is characterized in that driving equipment is arranged on a water inlet pipeline of the solar heat collector, a water inlet pipeline of the heat storage box, a pipeline between the heat storage box and the constant temperature box, and a pipeline between the constant temperature box and the bridge floor structure, the driving equipment is connected to the controller, and the controller is configured to issue a response value instruction to the corresponding driving equipment based on measured temperature data to supply heat for the bridge floor heating equipment.
2. The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a heat storage tank water level sensor is further arranged in the heat storage tank, and the heat storage tank water level sensor is connected with the controller so as to transmit detected water level data to the controller.
3. The solar photothermal conversion based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein at least one heat storage tank vent hole is further formed in the top of the heat storage tank.
4. The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a water replenishing pump is arranged on the water inlet pipeline of the heat storage tank, the water replenishing pump is connected with the controller, and the water replenishing pump is configured to receive an instruction of the controller to supply power to replenish water in the water source into the heat storage tank when the water level of the heat storage tank is lower than a set value.
5. The solar photothermal conversion based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein an incubator pressure reducing valve is arranged at the top of the incubator.
6. The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a bridge deck circulating pump is arranged on a pipeline between the thermostat and the bridge deck structure, and the bridge deck circulating pump is configured to receive an opening instruction of the controller when the actual thickness of the bridge deck ice and snow exceeds a set thickness limit value, and provide power to enable the thermostat to supply heat to the bridge deck heating equipment and start melting the bridge deck ice and snow.
7. The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a temperature conversion circulating pump is arranged in a pipeline between the heat storage tank and the thermostat, and the temperature conversion circulating pump is configured to receive an opening instruction of the controller to provide power to heat the thermostat by the heat storage tank under the condition that the bridge deck circulating pump is turned on and when the temperature value of the thermostat is smaller than a set lower limit value.
8. The solar photo-thermal conversion-based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a water inlet pipeline of the solar thermal collector is provided with a heat collection-storage circulating pump, and the heat collection-storage circulating pump is configured to receive an opening instruction of the controller to provide power to enable the solar thermal collector to collect solar energy to heat the heat storage tank when the outlet water temperature value of the thermal collector is higher than the temperature value of the heat storage tank.
9. The solar photothermal conversion based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein a snow and ice sensor in the bridge deck structure collects the thickness of the ice and snow on the bridge deck and transmits the data to the controller.
10. The solar photothermal conversion based circulating fluid heating bridge ice and snow melting control system as claimed in claim 1, wherein the controller is a PLC controller, and the PLC controller is connected with a human-computer interaction device;
the power supply and the short-circuit protector are respectively connected to the PLC and the human-computer interaction equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020668090.2U CN212128724U (en) | 2020-04-27 | 2020-04-27 | Solar photo-thermal conversion-based ice and snow melting control system for bridge heated by circulating fluid |
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| CN202020668090.2U CN212128724U (en) | 2020-04-27 | 2020-04-27 | Solar photo-thermal conversion-based ice and snow melting control system for bridge heated by circulating fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
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Address after: 250031 No. 576 Wushanxi Road, Tianqiao District, Jinan City, Shandong Province Patentee after: Shandong transportation planning and Design Institute Group Co.,Ltd. Address before: 250031 No. 576 Wushanxi Road, Tianqiao District, Jinan City, Shandong Province Patentee before: Shandong transportation planning and Design Institute Co.,Ltd. |
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