CN109162166A - Comprehensively utilize the cement concrete pavement ice melting system and construction method of geothermal electric heating - Google Patents
Comprehensively utilize the cement concrete pavement ice melting system and construction method of geothermal electric heating Download PDFInfo
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- CN109162166A CN109162166A CN201811230406.3A CN201811230406A CN109162166A CN 109162166 A CN109162166 A CN 109162166A CN 201811230406 A CN201811230406 A CN 201811230406A CN 109162166 A CN109162166 A CN 109162166A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
- E01C11/265—Embedded electrical heating elements ; Mounting thereof
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Abstract
The present invention provides the cement concrete pavement ice melting system and its construction method of comprehensive utilization geothermal electric heating, which is made of cement concrete road structure, geothermal system and electric heating system three parts.Cement concrete road increases thermal insulation layer between the supercrust and base of traditional structure；Geothermal system gives Road surface layer using the geothermal transfer that underground heat heat exchanger tube provides geothermal heat pump, realizes the function of preheating；Electric heating system utilizes external electric power, provides thermal energy to Road surface layer by inbuilt heating wire, to realize that whole system melts the function of ice and snow.The system according to temperature change can automatic open close, automatically control heating efficiency, can sufficiently sharp geothermal energy, while the drawbacks of avoid severe cold area that from can not providing enough geothermal energies, more environmentally-friendly saving is more in line with Practical Project demand.
Description
Technical field
China is vast in territory, and northern winter often faces the ice and snow accumulation of serious ice and snow problem, especially pavement of road
Traffic management departments at different levels are annoying always with removing problem, it is direct indirect caused by being frozen every year due to pavement of road accumulated snow
Economic loss reaches several hundred million members.The processing problem of pavement of road accumulated snow icing is paid much attention in countries in the world for a long time, carries out
The technical methods that a variety of improvement road snows freeze are explored in a large amount of correlation test research.In summary, Road is administered
Area snow icing method mainly has removing method and melts method two major classes: 1) removing method can be divided into it is artificial remove and mechanical removal, 2)
Melt rule and is divided into chemical method and hot thawing method.Hot thawing method makes pavement of road using the heat of the generations such as underground heat, electric heating, combustion gas
On ice dissolution, wherein advanced very big concern by scientific research circle and engineering circles of the underground heat snow melt because of its environmental protection and energy saving.Ground
Ball constantly discharges thermal energy from ground end depths to earth's surface and exterior space, thin solum geothermal energy resources be it is a kind of it is inexhaustible can be again
The raw energy, while thin solum geothermal energy resources do not generate any pollution while with high economic benefit, are a kind of epipodiums
It protects, the green energy resource of the sustainable development of high benefit.However, in northern China winter climate severe cold, the serious area of snowfall, ground
The heat exchange efficiency of heat is often not enough to melt snow ice, and heat energy efficiency is merely able to the temperature of pavement of road being increased to 0 DEG C or more,
Geothermal energy resources can only play the role of preheating, if you need to realize that the thorough thawing of pavement of road ice and snow also needs to be aided with other forms
Heating energy source.
Currently, the Important Sections of advanced road, freeway toll station, gas station of high-speed service area, airport landing race
Road etc. all can melt snow ice using a variety of different methods, if the energy that only single use electric energy provides thawing ice and snow can consume
A large amount of electric energy causes unnecessary waste, if only solely melting ice and snow using the heat of underground heat, may be limited by
Local geothermal energy resources bottleneck can not provide enough ice-melt heats in the lower situation of temperature, cannot achieve it and melt ice
The purpose of snow.In conclusion comprehensive utilization electric heating and underground heat can be used as a new research with the process of deicing or snow melting
Direction and application field, there is an urgent need to develop a kind of ice melting system that can be used for cement concrete road road surface and its matched
Construction method.
Summary of the invention
The primary purpose of the present invention is that being directed to the deficiency and defect of traditional electrothermal concrete ice melting system, one kind is proposed
The cement concrete pavement ice melting system of geothermal electric heating is comprehensively utilized, while its matching operation method being provided, to meet China north
The practical demand of the square easy accumulated ice area pavement of road deicing in severe cold area.
In order to achieve the above objectives, the present invention provides the following technical scheme that
The cement concrete pavement ice melting system for comprehensively utilizing geothermal electric heating includes cement concrete road structure, geothermal system
System and electric heating system three parts；
The cement concrete road structure plays it and removes for the basic structure and geothermal system and electric heating system of road
The object of ice function can be divided into: cement concrete pavement layer, thermal insulation layer, roadbase, road from top to bottom by its citation form
Bed course, the earth base of road layer, geothermal system and electric heating system are for transferring heat to cement concrete pavement layer, and cement is mixed
Solidifying dirt road surface layer transfers heat to the ice and snow layer of covering thereon again, its heat is melted, to realize that whole system melts the function of ice and snow
With；
The geothermal system for using thin solum geothermal energy resources to provide the function of thermal energy to cement concrete road structure
Energy property system, including geothermal heat pump, water circulating pump, the first electric valve, the first automatic control device, the first temperature detector, underground heat
Heat exchanger tube；
Specifically, geothermal heat pump is stake valve type structure, by the thermal-arrest raft board group at heat-collecting heat-storage stake and top at function
With being the geothermal energy resources that thin solum is absorbed and utilized, to realize the purpose heated to the water flow in underground heat heat exchanger tube；Underground heat heat exchange
Pipe is arranged between cement concrete road supercrust and thermal insulation layer, the recirculated water flowed in underground heat heat exchanger tube in " overlapping S-shaped "
To the cement concrete road supercrust above it, thermal insulation layer below obstructs the heat transfer that geothermal heat pump is provided
The path that heat transmits downwards, enables the underground heat heat exchanger tube to give the heat transfer of big department to cement concrete pavement of road
Layer, to improve the energy conversion rate of geothermal system；
The entrance and exit of geothermal heat pump and heat exchange pipeline is connected by pipeline respectively, forms closed be recycled back to
Road, so that entire geothermal system does not leak recirculated water during the work time, without supplement recirculated water；
Water circulating pump, the first electric valve, the first automatic control device, first are additionally provided on the loop of geothermal system
Temperature detector；Water circulating pump is the mechanical device being driven by electricity, and function is to provide power for underground heat heat exchange in-pipe flow, makes to exchange heat
Water flow can steadily flow, and the geothermal energy resources that geothermal heat pump obtains efficiently are passed to cement concrete road in time
Supercrust realizes the heat exchange purpose of entire geothermal system；First electric valve is the valve controlled by the first automatic control device, is passed through
The flowing that the Push And Release of first electric valve can control heat exchange water flow passes through if system encounters emergency case and needs emergency cutoff
First electric valve, can make the water flow in underground heat heat exchanger tube stop flowing, geothermal system stops working；First automatic control device is
Control the control unit of geothermal system；First temperature detector is the temperature sensor for measuring recirculated water water temperature, and recirculated water water temperature is believed
Number pass to first control device；The temperature signal of the first temperature detector of first control device real-time reception, via its internal logic
Judgement directly controls the first electric valve, the stream of control loop water with stop, realize the Push And Release of geothermal system, while first control device
Water circulating pump is directly controlled via the judgement of its internal logic, the flow velocity of control loop water realizes the heat exchange rate of geothermal system；
The electric heating system is to provide heat to cement concrete pavement layer by inbuilt heating wire using external electric power
The functional system of energy, including the second automatic control device, the second temperature detector, the second electric valve, heating wire；Heating wire is embedded in water
Inside cement concrete supercrust, the top of the underground heat heat exchanger tube of geothermal system is arranged in " overlapping S-shaped ", by external power supply,
Thermal energy is converted electrical energy into, to cement concrete pavement layer heat supply, since the outer diameter of heating wire is less than the outer diameter of hot heat exchanger tube,
The density of arrangement should be greater than underground heat heat exchanger tube, i.e. the wiring spacing of heating wire is smaller；Second automatic control device, the second temperature-sensitive
Device, the second electric valve, heating wire connect to form closed circuit, and the second electric valve is the valve controlled by the second automatic control device,
The through and off that can control electric power in heating wire by the Push And Release of the second electric valve, also can control the size of electric heating line current, into
And heating efficiency is controlled, if system encounters emergency case and needs emergency cutoff, by the second electric valve, electric heating system can be made to stop
Only work；Second automatic control device is the control unit for controlling electric heating system；Second temperature detector is the biography for measuring surface temperature
Sensor, temperature signal pass to second control device；The temperature signal of the second temperature detector of second control device real-time reception, via
The judgement of its internal logic directly controls the second electric valve, controls the Push And Release of electric heating system and the heat exchange rate of electric heating system.
The cement concrete pavement ice melting system of comprehensive utilization geothermal electric heating proposed by the present invention, matching operation method
Are as follows:
(1) it according to highway cement concrete road root surface construction technical specification and construction process requirement, is laid in roadbase
After the completion, it is laid with heat-barrier material on it, forms thermal insulation layer；
(2) steel wire is placed in thermal insulation layer surface, and (size of mesh opening can be but be not limited to 10cm × 10cm, specific by practical
Demand determines), underground heat is exchanged heat into effective binding and fixing on wire netting, makes underground heat heat exchanger tube in " overlapping S-shaped " horizontal layout, ground
Hot heat exchanger tube layout density and tube spacing are determined according to actual demand；
(3) continue to pour certain thickness cement concrete, after completing maintenance, carve " overlapping S-shaped " groove on its surface,
Heating wire is arranged in a groove, and the layout density and line spacing of heating wire are determined according to actual demand；
(4) continue to pour certain thickness cement concrete, cement concrete pavement layer is made to reach designed elevation, complete road
The final maintenance of face structure；
(5) installed outside road structure geothermal heat pump, water circulating pump, the first motor-driven valve, the first automatic control device,
First temperature detector, and connect underground heat heat exchanger tube and form closed circuit, complete the debugging of geothermal system；It is installed outside road structure
Second automatic control device, the second temperature detector, the second electric valve, and connect heating wire and form closed circuit, and inject recirculated water,
The debugging for completing geothermal system is checked and accepted；It is finally completed the cement concrete pavement ice melting system of entire comprehensive utilization geothermal electric heating
Debugging is checked and accepted.
The course of work of the invention: after Winter Snow starts, the temperature drop rate of cement concrete road is generally below
Mercury dropped, when the decline of cement concrete road surface temperature is close to 5 DEG C, geothermal system automatically turns on work, starts to water
Cement concrete supercrust is preheated；If cement concrete pavement layer further decreases and when close to 0 DEG C, electric heating system is opened
It is dynamic, start further to heat cement concrete pavement layer；By the public work of geothermal system and electric heating system, make water
The temperature of cement concrete supercrust remains at 0 DEG C or more, to realize the function for melting ice and snow.
Compared with prior art, the beneficial effects of the present invention are: with single use electrothermal way melt ice and snow technology phase
Than, the present invention can sufficiently sharp geothermal energy resources, reduce power consumption, more environmentally-friendly saving；With the skill of single use geothermal method
The drawbacks of art is compared, and enough geothermal energy resources can not be provided by avoiding the area of winter extremely severe cold or snowfall larger area,
It can guarantee that road surface does not have accumulated ice, realize the function for melting ice and snow.In addition, the system does not melt ice and snow luck only in winter
Row, can also be aided with summer heat accumulation mode, a large amount of heat source can be stored in geothermal heat pump in summer, in case winter melts ice
Snow uses.
Detailed description of the invention
Fig. 1 is the embedding schematic diagram of line with heating function and heat exchanger tube of the invention.
Fig. 2 is the embedding sectional view of line with heating function and heat pipe of the invention.
Fig. 3 is the embedding schematic diagram of line with heating function 10 of the invention in cement concrete pavement layer.
Fig. 4 is the underground heat heat exchanger tube 11 of the invention plan figure in cement concrete pavement layer.
Figure label: 1 is geothermal heat pump, and 2 be water circulating pump, and 3 be the first motor-driven valve, and 4 automatically control dress for first
It sets, 5 be the first temperature detector, and 6 be underground heat heat exchanger tube, and 7 be the second automatic control device, and 8 be the second temperature detector, and 9 be the second electric valve,
10 be heating wire, and 11 be cement concrete pavement layer, and 12 be thermal insulation layer, and 13 be roadbase, and 14 be road cushion, and 15 be road
Soil matrix layer.
Specific embodiment
Comprehensively utilize the cement concrete pavement ice melting system of geothermal electric heating, it is characterised in that: including cement concrete road
Line structure, geothermal system and electric heating system three parts；
The cement concrete road structure can be divided into from top to bottom by its citation form: cement concrete pavement layer 11,
Thermal insulation layer 12, roadbase 13, road cushion 14, the earth base of road layer 15, geothermal system and electric heating system are for heat
Cement concrete pavement layer is passed to, cement concrete pavement layer transfers heat to the ice and snow layer of covering thereon again, by its heat
Melt, to realize that whole system melts the function of ice and snow；
The geothermal system include geothermal heat pump 1, the electric valve 3 of water circulating pump 2, first, the first automatic control device 4,
First temperature detector 5, underground heat heat exchanger tube 6；Geothermal heat pump 1 is stake valve type structure, by the thermal-arrest raft of heat-collecting heat-storage stake and top
Board group is at function is that the geothermal energy resources of thin solum are absorbed and utilized, to realize the mesh heated to the water flow in underground heat heat exchanger tube
's；Underground heat heat exchanger tube 6 is arranged between cement concrete road supercrust 11 and thermal insulation layer 12 in " overlapping S-shaped ", underground heat heat exchange
The heat transfer that the recirculated water flowed in pipe 6 provides geothermal heat pump 1 is to cement concrete pavement of road layer 11, below
Thermal insulation layer 12 obstructed the path that heat transmits downwards, enable underground heat heat exchanger tube 6 by the heat transfer water supply of big department
Cement concrete Road surface layer 11, to improve the energy conversion rate of geothermal system；Geothermal heat pump 1 enters with heat exchange pipeline 6
Mouth is connected by pipeline respectively with outlet, forms closed circulation loop, so that entire geothermal system is not let out during the work time
Recirculated water is leaked, without supplement recirculated water；Water circulating pump 2 is the mechanical device being driven by electricity, and is recirculated water in underground heat heat exchanger tube 6
Power is provided, so that recirculated water is steadily flowed, in time efficiently passes to the geothermal energy resources that geothermal heat pump 1 provides
Cement concrete road supercrust 11；First electric valve 3 is the electric control valve controlled by the first automatic control device 4, passes through first
The Push And Release of electric valve 3 can control the flowing of recirculated water, if encountering emergency case needs emergency cutoff, by the first electric valve 3,
The recirculated water in underground heat heat exchanger tube can be made to stop flowing, geothermal system stops working；First automatic control device 4 is control ground
The control unit of hot systems；First temperature detector 5 is the temperature sensor for measuring recirculated water water temperature, and recirculated water water temperature signal is transmitted
To first control device 4；The temperature signal of 4 the first temperature detector of real-time reception 5 of first control device judges via its internal logic
It directly controls the first electric valve 3, the stream of control loop water and stops, realize the Push And Release of geothermal system, while the warp of first control device 4
Water circulating pump 2, the flow velocity of control loop water are directly controlled by the judgement of its internal logic, and then control the heat exchange speed of geothermal system
Rate；
The electric heating system is to be mentioned by inbuilt heating wire 10 to cement concrete pavement layer 11 using external electric power
For the functional system of thermal energy, including the second automatic control device 7, second the 8, second electric valve 9, heating wire 10 of temperature detector；Electric heating
Line 10 is embedded in inside cement concrete pavement layer 11, is arranged in the upper of the underground heat heat exchanger tube 6 of geothermal system in " overlapping S-shaped "
Side, by external power supply, converts electrical energy into thermal energy, to 11 heat supply of cement concrete pavement layer, due to the outer diameter of heating wire 10
Density less than the outer diameter of hot heat exchanger tube 6, arrangement should be greater than underground heat heat exchanger tube 6；Second automatic control device 7, the second temperature-sensitive
The electric valve 9 of device 8, second, the connection of heating wire 10 form closed circuit, and the second electric valve 9 is to be controlled by the second automatic control device 7
Circuit switch can control the through and off of 10 electric current of heating wire by the Push And Release of the second electric valve 9, also controllable 10 electricity of heating wire
The size of stream, and then heating efficiency is controlled, if system encounters emergency case and needs emergency cutoff, pass through the second electric valve 9
Electric heating system is set to stop working；Second automatic control device 7 is the control unit for controlling electric heating system；Second temperature detector 8 is to survey
The sensor of surface temperature is measured, temperature signal passes to second control device 7；7 the second temperature-sensitive of real-time reception of second control device
The temperature signal of device 8 directly controls the second electric valve 9 via the judgement of its internal logic, controls the Push And Release of electric heating system, Yi Ji electricity
The heat exchange rate of hot systems.
2. the cement concrete pavement ice melting system of comprehensive utilization geothermal electric heating according to claim 1, mating
Construction method are as follows:
1) according to highway cement concrete road root surface construction technical specification and construction process requirement, on the earth base of road layer 15
Successively laying road bed course 14, roadbase 13 are laid with heat-barrier material after the completion of roadbase 13 is laid on it, are formed
Thermal insulation layer 12；
2) latticed steel wire is placed on 12 surface of thermal insulation layer, size of mesh opening is specifically pressed actual demand and determined, by underground heat
6 binding and fixing of heat exchanger tube make underground heat heat exchanger tube 6 in " overlapping S-shaped " horizontal layout, underground heat heat exchanger tube 6 is arranged close on wire netting
Degree and tube spacing are determined according to actual demand；
3) continue to pour certain thickness cement concrete, after completing maintenance, carve " overlapping S-shaped " groove on its surface,
Heating wire 10 is arranged in a groove, and the layout density and line spacing of heating wire 10 are determined according to actual demand；
4) continue to pour certain thickness cement concrete, cement concrete pavement layer 11 is made to reach designed elevation, complete
The entire cement concrete road structure for being equipped with comprehensive utilization geothermal electric heating ice melting system is completed in the final maintenance of pavement structure.
5) geothermal heat pump 1, water circulating pump 2, the first motor-driven valve 3, first are installed outside road structure and automatically control dress
The 4, first temperature detector 5 is set, and connects underground heat heat exchanger tube 6 and forms closed circuit, and inject recirculated water, is installed outside road structure
Second automatic control device 7, second the 8, second electric valve 9 of temperature detector, and connect heating wire 10 and form closed circuit；
6) debugging for completing the cement concrete pavement ice melting system of entire comprehensive utilization geothermal electric heating is checked and accepted.
Below in conjunction with specific embodiment and its attached drawing to the coagulating cement provided by the invention for comprehensively utilizing geothermal electric heating
The technical solution of soil surface ice melting system and construction method is described further.In conjunction with following explanation, advantages of the present invention and spy
Sign will be apparent from.
Embodiment 1:
Specific step is as follows for implementation:
1) according to highway cement concrete road root surface construction technical specification and construction process requirement, on the earth base of road layer 15
Successively it is laid with the road cushion 14 of 20cm thickness, the roadbase 13 of 15cm thickness is spread on it after the completion of roadbase 13 is laid with
If heat-barrier material, formed with a thickness of 5cm thermal insulation layer 12；
2) latticed steel wire is placed on 12 surface of thermal insulation layer, size of mesh opening is 10cm × 10cm, by underground heat heat exchanger tube 6
Binding and fixing make underground heat heat exchanger tube 6 in " overlapping S-shaped " horizontal layout on wire netting, and the tube spacing of underground heat heat exchanger tube 6 is
20cm；
3) continue to pour the cement concrete with a thickness of 5cm, after completing maintenance, carve " overlapping S-shaped " groove on its surface,
Heating wire 10 is arranged in a groove, and the spacing of heating wire 10 is 10cm；
4) continue to pour the cement concrete with a thickness of 5cm, cement concrete pavement layer 11 is made to reach designed elevation, complete
The entire cement concrete road structure for being equipped with comprehensive utilization geothermal electric heating ice melting system is completed in the final maintenance of pavement structure.
5) geothermal heat pump 1, water circulating pump 2, the first motor-driven valve 3, first are installed outside road structure and automatically control dress
The 4, first temperature detector 5 is set, and connects underground heat heat exchanger tube 6 and forms closed circuit, and injects the circulation that enough saliferous rates are 5%
Water installs the second automatic control device 7, second the 8, second electric valve 9 of temperature detector outside road structure, and connects the formation of heating wire 10
Closed circuit；
6) debugging for completing the cement concrete pavement ice melting system of entire comprehensive utilization geothermal electric heating is checked and accepted.
It is 1m with road area in addition, also needing to provide the calculation method of heating efficiency Con trolling index of the present invention2For:
1, road surface temperature rise institute calorific requirement is calculated
Cement concrete road surface by -5 DEG C be raised to 0 DEG C needs heat Q by formula 1.
Q=C1M1ΔT 1 ①
C1Indicate cement concrete specific heat capacity, unit: J/ (kg DEG C)
M1Indicate the quality of cement concrete, unit: kg
ΔT1Indicate the temperature difference on cement concrete road surface, unit: DEG C
It is obtained by reference: C1=840J/ (kg DEG C), M1=2350~2450kg (related with material, be selected as by cement
C30), Δ T=0- (- 5)=5 DEG C
By 1. calculating: area 1m2Cement concrete road, temperature rises to 0 DEG C from -5 DEG C, required heat
Q=9.87 × 106J~1.03 × 107J
2, line with heating function heat conduction rate is calculated
Rate of heat transfer Q needed for the temperature of cement concrete road rises to 0 DEG C as -5 DEG C1, it is by carbon fiber heating electricity
Line generates heat the heat of transmission after being powered, it is assumed that temperature needed for line with heating function is T1, obtained by the relevant knowledge of heat transfer, from line with heating function
Temperature T12. 0 DEG C of temperature for arriving cement concrete surface vertically upward meets formula
Q1Indicate rate of heat transfer, unit: W
A-- indicates the surface area of cement concrete, unit: m2
K-- indicates the thermal coefficient of cement concrete, unit: W/ (m DEG C)
T1Indicate the temperature of carbon fiber heating line, unit: DEG C
T2Temperature after indicating cement concrete heating is 0 DEG C
L-- indicates the depth of burying of carbon fiber heating line, meets detailing requiments, unit: m
It is obtained by reference: A=1m2, k=1.28W/ (m DEG C), T2=0 DEG C, L=0.05m
By 2. calculating: being 1m by surface area2Cement concrete road needed for fever electric wire be 5m (see Fig. 4), then
The temperature T of 5m carbon fiber heating line required for cement concrete temperature is raised to 0 DEG C as -5 DEG C1=107 DEG C, averagely arrive every 1m carbon
The temperature of fiber line with heating function is 21 DEG C.
3, fever linear heat generation rate is calculated
Electric energy P needed for the heating temperature of every 1m carbon fiber heating line reaches 21 DEG C by formula 3.
P-- indicates the power of carbon fiber heating line, unit: W
Q2Indicate the electric energy of every 1m line with heating function, unit: J
T0Indicate the fever time of line with heating function, unit: s
N-- indicates that area is 1m2The length of the embedding line with heating function of road.Unit: m
Then 3. 4. calculated by formula heating wire 10 electrical power be 548W.
It should be noted that attached drawing of the invention is all made of very simplified form and using non-accurate ratio, only
It is not to limit the enforceable qualifications of the present invention to convenient, the lucidly aid illustration embodiment of the present invention the purpose.
It should also be noted that, the embodiment of the present invention has preferable implementation, it is not any type of to the present invention
It limits.Any change or modify equal that any those skilled in the art makes according to the technology contents of the disclosure above
It should be regarded as equivalent effective embodiment, belong to the range of technical solution of the present invention protection.
Claims (2)
1. comprehensively utilizing the cement concrete pavement ice melting system of geothermal electric heating, it is characterised in that: including cement concrete road
Structure, geothermal system and electric heating system three parts；
The cement concrete road structure can be divided into from top to bottom by its citation form: cement concrete pavement layer (11), every
Thermosphere (12), roadbase (13), road cushion (14), the earth base of road layer (15), geothermal system and electric heating system are for
Cement concrete pavement layer is transferred heat to, cement concrete pavement layer transfers heat to the ice and snow layer of covering thereon again,
Its heat is melted, to realize that whole system melts the function of ice and snow；
The geothermal system includes geothermal heat pump (1), water circulating pump (2), the first electric valve (3), the first automatic control device
(4), the first temperature detector (5), underground heat heat exchanger tube (6)；Geothermal heat pump (1) is stake valve type structure, by heat-collecting heat-storage stake and top
The thermal-arrest raft board group in portion is at function is that the geothermal energy resources of thin solum are absorbed and utilized, to realize to the water in underground heat heat exchanger tube
Flow the purpose of heating；Underground heat heat exchanger tube (6) is arranged in cement concrete road supercrust (11) and thermal insulation layer in " overlapping S-shaped "
(12) between, the heat transfer that the recirculated water flowed in underground heat heat exchanger tube (6) provides geothermal heat pump (1) is to coagulating cement
Dirt road road supercrust (11), thermal insulation layer (12) below has obstructed the path that heat transmits downwards, so that underground heat heat exchanger tube (6)
It can be by the heat transfer of big department to cement concrete pavement of road layer (11), to improve the energy conversion rate of geothermal system；
Geothermal heat pump (1) passes through pipeline with the entrance and exit of heat exchange pipeline (6) respectively and connect, and forms closed circulation loop,
So that entire geothermal system does not leak recirculated water during the work time, without supplement recirculated water；Water circulating pump (2) is that electric power drives
Dynamic mechanical device provides power for underground heat heat exchanger tube (6) interior recirculated water, recirculated water is enable steadily to flow, in time efficiently
The geothermal energy resources that geothermal heat pump (1) provides are passed to cement concrete road supercrust (11) by ground；First electric valve (3) is
By the electric control valve that the first automatic control device (4) control, the stream of recirculated water can control by the Push And Release of the first electric valve (3)
It is dynamic, if encountering emergency case needs emergency cutoff, by the first electric valve (3), the recirculated water in underground heat heat exchanger tube can be made to stop
Fluid stopping is dynamic, and geothermal system stops working；First automatic control device (4) is the control unit for controlling geothermal system；First temperature-sensitive
Device (5) is the temperature sensor for measuring recirculated water water temperature, and recirculated water water temperature signal is passed to first control device (4)；First
The temperature signal of control device (4) the first temperature detector of real-time reception (5) directly controls the first electric valve via the judgement of its internal logic
(3), the stream of control loop water with stop, realize the Push And Release of geothermal system, while first control device (4) is via its internal logic
Judgement directly controls water circulating pump (2), the flow velocity of control loop water, and then controls the heat exchange rate of geothermal system；
The electric heating system is to be mentioned by inbuilt heating wire (10) to cement concrete pavement layer (11) using external electric power
For the functional system of thermal energy, including the second automatic control device (7), the second temperature detector (8), the second electric valve (9), heating wire
(10)；Heating wire (10) is embedded in cement concrete pavement layer (11) inside, is arranged in the underground heat of geothermal system in " overlapping S-shaped "
The top of heat exchanger tube (6) converts electrical energy into thermal energy by external power supply, to cement concrete pavement layer (11) heat supply, due to
The outer diameter of heating wire (10) is less than the outer diameter of hot heat exchanger tube (6), and the density of arrangement should be greater than underground heat heat exchanger tube (6)；Second certainly
Dynamic control device (7), the second temperature detector (8), the second electric valve (9), heating wire (10) connection form closed circuit, the second electric valve
(9) it is the circuit switch controlled by the second automatic control device (7), electric heating can control by the Push And Release of the second electric valve (9)
The through and off of line (10) electric current, the size of also controllable heating wire (10) electric current, and then heating efficiency is controlled, if system encounters
Emergency case needs emergency cutoff, by the second electric valve (9), electric heating system can be made to stop working；Second automatic control device
It (7) is the control unit for controlling electric heating system；Second temperature detector (8) is the sensor for measuring surface temperature, temperature signal transmitting
Give second control device (7)；The temperature signal of second control device (7) the second temperature detector of real-time reception (8), is patrolled via inside it
It collects judgement and directly controls the second electric valve (9), control the Push And Release of electric heating system and the heat exchange rate of electric heating system.
2. the cement concrete pavement ice melting system of comprehensive utilization geothermal electric heating according to claim 1, matching operation
Method are as follows:
1) according to highway cement concrete road root surface construction technical specification and construction process requirement, on the earth base of road layer (15) according to
Secondary laying road bed course (14), roadbase (13) are laid with heat-barrier material after the completion of roadbase (13) are laid on it,
It is formed thermal insulation layer (12)；
2) latticed steel wire is placed on thermal insulation layer (12) surface, size of mesh opening is specifically pressed actual demand and determined, underground heat is changed
Heat pipe (6) binding and fixing make underground heat heat exchanger tube (6) in " overlapping S-shaped " horizontal layout, underground heat heat exchanger tube (6) cloth on wire netting
Density and tube spacing is set to determine according to actual demand；
3) continue to pour certain thickness cement concrete, after completing maintenance, " overlapping S-shaped " groove is carved on its surface, recessed
Heating wire (10) are arranged in slot, and the layout density and line spacing of heating wire (10) are determined according to actual demand；
4) continue to pour certain thickness cement concrete, cement concrete pavement layer (11) is made to reach designed elevation, complete road
The entire cement concrete road structure for being equipped with comprehensive utilization geothermal electric heating ice melting system is completed in the final maintenance of face structure.
5) geothermal heat pump (1), water circulating pump (2), the first motor-driven valve (3), the first automatic control are installed outside road structure
Device (4), the first temperature detector (5), and connect underground heat heat exchanger tube (6) and form closed circuit, and inject recirculated water；In road knot
Second automatic control device (7), the second temperature detector (8), the second electric valve (9) are installed outside structure, and connects heating wire (10) and forms envelope
The circuit closed；
6) debugging for completing the cement concrete pavement ice melting system of entire comprehensive utilization geothermal electric heating is checked and accepted.
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| CN201811230406.3A CN109162166B (en) | 2018-10-22 | 2018-10-22 | Cement concrete pavement ice melting system comprehensively utilizing geothermal electric heat and construction method |
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| CN201811230406.3A CN109162166B (en) | 2018-10-22 | 2018-10-22 | Cement concrete pavement ice melting system comprehensively utilizing geothermal electric heat and construction method |
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| CN109738312A (en) * | 2019-01-21 | 2019-05-10 | 湖北工业大学 | Simulate the ice-melt road model experimental rig and test method of traffic loading |
| CN110055856A (en) * | 2019-04-03 | 2019-07-26 | 湖北工业大学 | Seif-citing rate road surface and heating cable mixing road surface ice melting system and its construction method |
| WO2021135203A1 (en) * | 2020-01-02 | 2021-07-08 | 长安大学 | Active-type snow- and ice-melting road surface structure and construction process therefor |
| CN113174805A (en) * | 2020-05-22 | 2021-07-27 | 中国科学院青海盐湖研究所 | Road snow melting device of coupling energy system and use method thereof |
| CN113668320A (en) * | 2021-09-02 | 2021-11-19 | 内江师范学院 | Geothermal energy collection road surface |
| CN113914169A (en) * | 2021-11-29 | 2022-01-11 | 天津大学 | Heatable pavement structure |
| CN114657839A (en) * | 2022-05-07 | 2022-06-24 | 浙江华东工程建设管理有限公司 | Easily maintain road surface based on geothermol power water conservancy diversion |
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| CN109738312A (en) * | 2019-01-21 | 2019-05-10 | 湖北工业大学 | Simulate the ice-melt road model experimental rig and test method of traffic loading |
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| CN110055856A (en) * | 2019-04-03 | 2019-07-26 | 湖北工业大学 | Seif-citing rate road surface and heating cable mixing road surface ice melting system and its construction method |
| WO2021135203A1 (en) * | 2020-01-02 | 2021-07-08 | 长安大学 | Active-type snow- and ice-melting road surface structure and construction process therefor |
| CN113174805A (en) * | 2020-05-22 | 2021-07-27 | 中国科学院青海盐湖研究所 | Road snow melting device of coupling energy system and use method thereof |
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| CN113914169A (en) * | 2021-11-29 | 2022-01-11 | 天津大学 | Heatable pavement structure |
| CN114657839A (en) * | 2022-05-07 | 2022-06-24 | 浙江华东工程建设管理有限公司 | Easily maintain road surface based on geothermol power water conservancy diversion |
| CN115404739A (en) * | 2022-09-30 | 2022-11-29 | 湖北工业大学 | Road or airport embedded pipe arrangement structure and method for controlling temperature and dismantling |
| CN115404739B (en) * | 2022-09-30 | 2023-08-15 | 湖北工业大学 | Road or airport embedded pipe arrangement structure and temperature control and dismantling method |
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