CN105386406A - Scanning type circulating power supply snow and ice melting bridge deck electric heating system - Google Patents
Scanning type circulating power supply snow and ice melting bridge deck electric heating system Download PDFInfo
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- CN105386406A CN105386406A CN201510650151.6A CN201510650151A CN105386406A CN 105386406 A CN105386406 A CN 105386406A CN 201510650151 A CN201510650151 A CN 201510650151A CN 105386406 A CN105386406 A CN 105386406A
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- electric heating
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention discloses a scanning type circulating power supply snow and ice melting bridge deck electric heating system. The snow and ice melting bridge deck electric heating system is divided into independent controllable parallel electric heating units according to electric load capacities; the electric heating units are arranged in parallel in the form of a longitudinal array according to a set distance; and the electric heating units in the longitudinal array are controlled in groups to work in circulation in the form of scanning according to a set time sequence. According to the invention, available electric power of a power supply system can be sufficiently utilized and the total power of the electric heating system is ensured; the heating uniformity is improved and secondary icing of melted water is avoided; the reliability of a snow and ice melting system is improved and convenience is brought to the maintenance; the scanning type circulating power supply snow and ice melting bridge deck electric heating system can be widely applied to various special road sections including airport runways, tunnel entrance transitional areas and the like so that the electric heating snow and ice melting method is well applied.
Description
The application is application number is 2014100786160; The applying date is on March 5th, 2014, and denomination of invention is: a kind of ice-melt snowbridge face electric heating system of scan-type cycle power, and application people is the divisional application of HeFei University of Technology.
Technical field
The present invention relates to a kind of ice-melt snowbridge face electric heating system, is the electric heating system of the deicing or snow melting for occasions such as bridge floor, road surface or airfield pavements.
Background technology
The method of snow-ice melting system conventional both at home and abroad at present mainly contains removing method and thawing method.Removing method is artificial sweep-out method and mechanical removal method; Thawing method comprises chemical thawing method, hot thawing method; Road surface new material deicing snow dust (adding salt compounds from method for releasing, interpolation conductive material current flow method); In addition solar energy and earth source heat pump is also had to melt method, spreading sandstone material and seif-citing rate elastic planking technology etc.
Electric heating system deicing or snow melting method, ice-melt snow speed is fast, automation and intelligence degree is high, can remote real_time control, do not corrode and contaminated environment, in ice-melt snow process, can not real-time traffic be affected, effectively can improve the traffic capacity, reduce traffic accident incidence.
For the method for electric heating deicing or snow melting, often need large area to lay electric calorifie installation and form whole electric heating system, but when all electric calorifie installations carry out entirety heating in for whole electric heating system, need sizable electric power to support, and electric current is large, transmission cable calorific value is large, power consumption is large.In order to adapt to such electric heating deicing or snow melting method, Normal practice is equipped with high-power transformer station, transformation electricity tower, high-power switch board, and strengthen transmission cable diameter or add generator etc.But, the construction of relevant device and later stage operation maintenance process all need a large amount of funds in advance to support, and bridge floor or snow-ice melting system system are substantially all in idle state in other seasons except winter, for standard highway in the wild, distance industrial electro or charge station, service center distant time, electricity consumption just seems more awkward, and these situations seriously suppress even to prevent applying of electric heating deicing or snow melting.
Summary of the invention
The present invention is the weak point for avoiding above-mentioned prior art to deposit, a kind of ice-melt snowbridge face electric heating system of scan-type cycle power is provided, to make electric heating deicing or snow melting technology in specific road section, as the place such as bridge floor, airfield runway obtains application well, ensure that road safety is unimpeded.
The present invention is that technical solution problem adopts following technical scheme:
The feature of the ice-melt snowbridge face electric heating system of scan-type cycle power of the present invention is: bridge floor ice-melt snow electric heating system is divided into independent controlled electric heating unit each in parallel by electric load ability, the parallel laying of spacing that described each electric heating unit presses setting along vehicle heading is longitudinal array, controls each electric heating unit in described longitudinal array and divides into groups by the form scanned with the sequential periodic duty of setting.
The feature of the ice-melt snowbridge face electric heating system of scan-type cycle power of the present invention is also: described each electric heating unit is successively labeled as L1, L2 to opposite side by sequence of natural numbers from the side of longitudinal array ... Ln; Described n is the quantity of electric heating unit in longitudinal array; N electric heating unit is divided into s electric heating unit group, and by sequence of natural numbers by each electric heating unit group echo is respectively: Z1, Z2 ... Zs; In each electric heating unit group, the quantity of electric heating unit is m, and has: m=n/s, and wherein n is the integral multiple of s, and described s presses in a rule and obtained by formula (1) formula: s=P
always/ P (1);
In formula (1): P
alwaysfor the general power of bridge floor electric heating system, P can provide electrical power for bridge floor electric power system.
The feature of the ice-melt snowbridge face electric heating system of scan-type cycle power of the present invention is also: a described n electric heating unit is divided into s electric heating unit group as follows:
Each electric unit in electric heating unit group Z1 is respectively: L1, L (1+m), L (1+2m) ... L [1+ (s-1) m]
Each electric unit in electric heating unit group Z2 is respectively: L2, L (2+m), L (2+2m) ... L [2+ (s-1) m]
…
Each electric unit in electric heating unit group Zs is respectively: Lm, L (2m), L (m+2m) ... L [m+ (s-1) m]
Described each electric heating unit grouping by the form of scanning in the mode of the sequential periodic duty of setting is:
Step 1, first to the continuous power-on time t of electric heating unit group Z1, other each electric heating unit group is the state of stopping power supply;
Step 2, thereupon to the continuous power-on time t of electric heating unit group Z2, other each electric heating unit group is the state of stopping power supply;
…
Step 3 is until to the continuous power-on time t of electric heating unit group Zs, and other each electric heating unit group is the state of stopping power supply;
Again by step 1-3 circulation said process, a cycle period T=t × s, until the temperature range value that bridge floor reaches set temperature value or reaches setting completes ice-melt snow process.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention changes " entire system is powered " is by electric heating unit group scan-type cycle power, by controlling the periodic duty of each electric heating unit Grouping scan formula, efficiently solve entirety to mat formation the excessive problem that cannot use of electric calorifie installation power, make the method for electric heating deicing or snow melting obtain good application.
2, the controlled reliability that improve ice-melt snow electric heating system of the independence of each electric heating unit in the present invention, facilitate Measuring error, when some or multiple electric heating unit damages, do not affect other electric heating unit normally to work, improve the reliability of deicing or snow melting system, also for maintenance offers convenience.
3, electric heating unit is longitudinal array along the parallel laying of vehicle heading by the present invention, when having one or more electric heating unit and damaging, the interruption blind area of deicing or snow melting can not be formed along vehicle heading on road surface, avoid electric heating unit along when laying damage perpendicular to vehicle heading, local occurs that ice-melt snow is interrupted blind area to the obstruction caused of driving a vehicle, reliability is high, also greatly reduces the possibility that secondary freezes simultaneously.
4, the grouping of each electric heating unit arranges by the present invention, and by s=P always/P arranges the quantity of electric heating unit group, both takes full advantage of the provided electrical power of electric power system, make again the general power of electric heating system be ensured.
5, the present invention makes the up-front investment of electric heating deicing or snow melting system and later stage operation cost significantly be reduced.
6, in the present invention for the specific block form of each electric heating unit, effectively prevent local occur ice-melt snow heating blind area, improve the uniformity of heating, avoid thawing water secondary freeze.
7, the present invention is not limited to bridge floor in field of traffic, and for various special road section, comprising airfield runway, tunnel portal transitional region etc. can extensive use.
Accompanying drawing explanation
Fig. 1 is that electric heating unit of the present invention is arranged schematic diagram on bridge floor;
Fig. 2 is electric heating unit of the present invention grouping schematic diagram;
Detailed description of the invention
See Fig. 1, in the present embodiment, the vibrational power flow of the ice-melt snowbridge face electric heating system of scan-type cycle power is: bridge floor ice-melt snow electric heating system is divided into independent controlled electric heating unit each in parallel by electric load ability, the parallel laying of spacing that each electric heating unit presses setting along vehicle heading is longitudinal array, controls each electric heating unit in longitudinal array and divides into groups by the form scanned with the sequential periodic duty of setting.
In concrete enforcement, each electric heating unit is successively labeled as L1, L2 to opposite side by sequence of natural numbers from the side of longitudinal array ... Ln; Described n is the quantity of electric heating unit in longitudinal array; N electric heating unit is divided into s electric heating unit group, and by sequence of natural numbers by each electric heating unit group echo is respectively: Z1, Z2 ... Zs; In each electric heating unit group, the quantity of electric heating unit is m, and has: m=n/s, and wherein n is the integral multiple of s, and described s presses in a rule and obtained by formula (1) formula: s=P
always/ P (1);
In formula (1): P
alwaysfor the general power of bridge floor electric heating system, P can provide electrical power for bridge floor electric power system.
As shown in Figure 1 and Figure 2, in Fig. 1, comprise bridge floor 1, bridge floor heat-conducting layer 2, electric heating unit 3, control circuit power distribution cabinet 4, bridge floor direction of traffic 5.All electric heating units 3 are labeled as L1, L2, L3L9 by direction of traffic successively to set spacing parallel laid on bridge floor, and namely n is 9 again from the side Access Control circuit distribution cabinet 4 of bridge.Can provide power according to scene, nine electric heating units 3 are divided into three electric heating unit groups, and namely s is 3, is labeled as Z1, Z2 and Z3 respectively, and in each unit group, the quantity of electric heating unit is 9/3=3, and namely m is 3.When in practice, electric heating unit can not divide exactly by electric heating unit group number time, remaining unit number is returned in the end in one group.
See Fig. 2, in the present embodiment, n electric heating unit is divided into s electric heating unit group as follows:
Each electric unit in electric heating unit group Z1 is respectively: L1, L (1+m), L (1+2m) ... L [1+ (s-1) m]
Each electric unit in electric heating unit group Z2 is respectively: L2, L (2+m), L (2+2m) ... L [2+ (s-1) m]
…
Each electric unit in electric heating unit group Zs is respectively: Lm, L (2m), L (m+2m) ... L [m+ (s-1) m]
As shown in Figure 2, each electric heating unit in electric heating unit group Z1 is respectively: L1, L4 and L7; Each electric heating unit in electric heating unit group Z2 is respectively: L2, L5 and L8; Each electric heating unit in electric heating unit group Z3 is respectively: L3, L6 and L9;
Each electric heating unit grouping by the form of scanning in the mode of the sequential periodic duty of setting is:
Step 1, first to the continuous power-on time t of electric heating unit group Z1, other each electric heating unit group is the state of stopping power supply;
Step 2, thereupon to the continuous power-on time t of electric heating unit group Z1, other each electric heating unit group is the state of stopping power supply;
…
Step 3 is until to the continuous power-on time t of electric heating unit group Zs, and other each electric heating unit group is the state of stopping power supply;
Again by step 1-3 circulation said process, a cycle period T=t × s, until the temperature range value that bridge floor reaches set temperature value or reaches setting completes ice-melt snow process.
By its periodic duty mode of form shown in Fig. 2 be:
First the state of stopping power supply is to electric heating unit group Z1 continuous power-on time t, Z2, Z3 two electric heating unit groups;
The state of stopping power supply is to electric heating unit group Z2 continuous power-on time t, Z1, Z3 two electric heating unit groups thereupon;
Thereafter the state of stopping power supply is to electric heating unit group Z3 continuous power-on time t, Z1, Z2 two electric heating unit groups;
Press said process periodic duty again, a cycle period is T=3t, until the temperature range value that bridge floor reaches set temperature value or reaches setting completes ice-melt snow process.
In real work, electric heating unit is all independent controlled, and lays along direction of traffic uniform parallel, spacing is less, when wherein certain electric heating unit during cisco unity malfunction because of fault, can not affect other electric heating units and normally work, do not affect overall ice-melt effect, improve the reliability of system yet.
Technical solution of the present invention in Fuyang-speedway Fuyang, Xincai South Exit place D ramp location carried out practice.On-the-spot ramp bridge face length 70 meters, be the wide 7m of two-way one lane Bridge, the heating cable as electric heating unit is only laid on the wide mid portion of the highest 3.75m of utilization rate, and heating cable spacing is 5cm, is longitudinally laid on bridge floor according to direction of traffic.Bridge floor total length is 60m, the length of every root heating cable is 140m, lay 36 altogether, the electric power of every root heating cable is 25w/m, then on-the-spot required general power is 126kw, the on-the-spot general power 50kw more than needed that can provide, therefore packet count is 126/50=2.52, adopts and is taken as three groups into a method.
Divide into groups to 36 heating cables according to group technology of the present invention, wherein 1,4,734 is first group, and 2,5,835 is second group, and 3,6,936 is the 3rd group.Then power according to method of supplying power to provided by the present invention, first power supply is carried out 3 minutes to first group of heating cable, do not power for other two groups; Again power supply is carried out 3 minutes to second group of heating cable, do not power equally for other two groups; Again power supply is carried out 3 minutes to the 3rd group of heating cable, do not power for other two groups; Again first group of heating cable is powered, so circulate, cycle power when realizing scanning.
Technical solution of the present invention had both taken full advantage of the provided electrical power of electric power system, made again the general power of electric heating system be ensured; And improve the uniformity of heating, avoid thawing water secondary to freeze; Improve the reliability of deicing or snow melting system, for maintenance offers convenience; For various special road section, comprising airfield runway, tunnel portal transitional region etc. can extensive use, makes the method for electric heating deicing or snow melting obtain good application.
The present invention also may be used for indoor culture warming, solves the problem that self-employed worker's electric power is limited, and achieves homogeneous heating; The present invention can also be used for house ornamentation floor heating heat supply, and conventional mode of heating carries out a point room by the restriction of electric power and heats, and present invention achieves homogeneous heating while of whole room.
Claims (1)
1. the ice-melt snowbridge face electric heating system of a scan-type cycle power, it is characterized in that: bridge floor ice-melt snow electric heating system is divided into independent controlled electric heating unit each in parallel by electric load ability, the parallel laying of spacing that described each electric heating unit presses setting along vehicle heading is longitudinal array, controls each electric heating unit in described longitudinal array and divides into groups by the form scanned with the sequential periodic duty of setting; Described each electric heating unit is successively labeled as L1, L2 to opposite side by sequence of natural numbers from the side of longitudinal array ... Ln; Described n is the quantity of electric heating unit in longitudinal array; N electric heating unit is divided into s electric heating unit group, and by sequence of natural numbers by each electric heating unit group echo is respectively: Z1, Z2 ... Zs; In each electric heating unit group, the quantity of electric heating unit is m, and has: m=n/s, and wherein n is the integral multiple of s, and described s presses in a rule and obtained by formula (1) formula: s=P
always/ P (1);
In formula (1): P
alwaysfor the general power of bridge floor electric heating system, P can provide electrical power for bridge floor electric power system;
A described n electric heating unit is divided into s electric heating unit group as follows:
Each electric unit in electric heating unit group Z1 is respectively: L1, L (1+m), L (1+2m) ... L [1+ (s-1) m]
Each electric unit in electric heating unit group Z2 is respectively: L2, L (2+m), L (2+2m) ... L [2+ (s-1) m]
…
Each electric unit in electric heating unit group Zs is respectively: Lm, L (2m), L (m+2m) ... L [m+ (s-1) m]
Described each electric heating unit grouping by the form of scanning in the mode of the sequential periodic duty of setting is:
Step 1, first to the continuous power-on time t of electric heating unit group Z1, other each electric heating unit group is the state of stopping power supply;
Step 2, thereupon to the continuous power-on time t of electric heating unit group Z2, other each electric heating unit group is the state of stopping power supply;
…
Step 3 is until to the continuous power-on time t of electric heating unit group Zs, and other each electric heating unit group is the state of stopping power supply;
Again by step 1-3 circulation said process, a cycle period T=t × s, until the temperature range value that bridge floor reaches set temperature value or reaches setting completes ice-melt snow process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650151.6A CN105386406B (en) | 2014-03-05 | 2014-03-05 | Scanning type circulating power supply snow and ice melting bridge deck electric heating system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650151.6A CN105386406B (en) | 2014-03-05 | 2014-03-05 | Scanning type circulating power supply snow and ice melting bridge deck electric heating system |
| CN201410078616.0A CN103821086B (en) | 2014-03-05 | 2014-03-05 | A kind of ice-melt snowbridge face electric heating system of scan-type cycle power |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078616.0A Division CN103821086B (en) | 2014-03-05 | 2014-03-05 | A kind of ice-melt snowbridge face electric heating system of scan-type cycle power |
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| CN105386406A true CN105386406A (en) | 2016-03-09 |
| CN105386406B CN105386406B (en) | 2017-01-25 |
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| CN201410078616.0A Active CN103821086B (en) | 2014-03-05 | 2014-03-05 | A kind of ice-melt snowbridge face electric heating system of scan-type cycle power |
| CN201510650151.6A Active CN105386406B (en) | 2014-03-05 | 2014-03-05 | Scanning type circulating power supply snow and ice melting bridge deck electric heating system |
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| CN201410078616.0A Active CN103821086B (en) | 2014-03-05 | 2014-03-05 | A kind of ice-melt snowbridge face electric heating system of scan-type cycle power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200676A (en) * | 2017-12-29 | 2018-06-22 | 合肥工业大学 | Electric heating system control method is avenged in a kind of ice-melt |
| CN109468909A (en) * | 2018-10-26 | 2019-03-15 | 河海大学 | A kind of connected section bridge anti-freezing system of the bridge tunnel based on semiconductor laser technique |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323690B (en) * | 2021-07-08 | 2023-08-22 | 山东建筑大学 | Deicing system and method for tunnel lining in cold region |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237809A (en) * | 1997-03-03 | 1998-09-08 | Sanden Corp | Road surface snow melting device |
| JP2003254612A (en) * | 2002-03-05 | 2003-09-10 | Kubota Corp | Cogeneration system and snow melting facility using the same |
| CN101701445A (en) * | 2009-10-29 | 2010-05-05 | 浙江石金玄武岩纤维有限公司 | Basalt fiber and carbon fiber compound geogrid with electric heating function |
| CN102635049A (en) * | 2011-02-15 | 2012-08-15 | 大连创达技术交易市场有限公司 | Snow-melting ice-thawing method of composite mesh grid |
| CN203128975U (en) * | 2013-03-14 | 2013-08-14 | 尹无忌 | Automatic microwave deicing system for bridge pavement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4237168B2 (en) * | 2005-08-04 | 2009-03-11 | 株式会社ティーネットジャパン | Heating equipment and road heater |
| KR101065438B1 (en) * | 2010-02-26 | 2011-09-16 | 주식회사 우석 | Snow Melting Device with Improved Power Saving Function |
| CN103243628B (en) * | 2013-05-21 | 2015-08-19 | 台州市四方交通建设工程有限公司 | The facility of Initiative Defense road, bridge, road, field ice disaster and construction method thereof |
-
2014
- 2014-03-05 CN CN201410078616.0A patent/CN103821086B/en active Active
- 2014-03-05 CN CN201510650151.6A patent/CN105386406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237809A (en) * | 1997-03-03 | 1998-09-08 | Sanden Corp | Road surface snow melting device |
| JP2003254612A (en) * | 2002-03-05 | 2003-09-10 | Kubota Corp | Cogeneration system and snow melting facility using the same |
| CN101701445A (en) * | 2009-10-29 | 2010-05-05 | 浙江石金玄武岩纤维有限公司 | Basalt fiber and carbon fiber compound geogrid with electric heating function |
| CN102635049A (en) * | 2011-02-15 | 2012-08-15 | 大连创达技术交易市场有限公司 | Snow-melting ice-thawing method of composite mesh grid |
| CN203128975U (en) * | 2013-03-14 | 2013-08-14 | 尹无忌 | Automatic microwave deicing system for bridge pavement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108200676A (en) * | 2017-12-29 | 2018-06-22 | 合肥工业大学 | Electric heating system control method is avenged in a kind of ice-melt |
| CN108200676B (en) * | 2017-12-29 | 2020-09-01 | 合肥工业大学 | Control method of ice and snow melting electric heating system |
| CN109468909A (en) * | 2018-10-26 | 2019-03-15 | 河海大学 | A kind of connected section bridge anti-freezing system of the bridge tunnel based on semiconductor laser technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103821086A (en) | 2014-05-28 |
| CN105386406B (en) | 2017-01-25 |
| CN103821086B (en) | 2015-09-16 |
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