CN107338731A - A kind of auto spraying bridge maintenance equipment - Google Patents
A kind of auto spraying bridge maintenance equipment Download PDFInfo
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- CN107338731A CN107338731A CN201710598585.5A CN201710598585A CN107338731A CN 107338731 A CN107338731 A CN 107338731A CN 201710598585 A CN201710598585 A CN 201710598585A CN 107338731 A CN107338731 A CN 107338731A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 55
- 238000005507 spraying Methods 0.000 title claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 230000036571 hydration Effects 0.000 claims description 31
- 238000006703 hydration reaction Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000012636 effector Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of auto spraying bridge maintenance equipment of the present invention.Including guide rail and equipment body；The guide rail is two, is set in parallel on concrete component, the both ends of a guide rail are respectively arranged with postive stop baffle；Equipment body moves on the guide rail；Spray bracket is fixedly installed on the main car frame in equipment body, is stretched out and is extended downwardly along main car frame both sides, is arranged concrete component, and high-pressure conduit is laid along spray bracket, and several shower nozzles stretched out to concrete component direction are provided with high-pressure conduit；Control cabinet is arranged on the main car frame, there is control module in control cabinet, the control module is electrically connected with the drive mechanism in equipment body and sensor respectively, and of the invention one has technical effect that auto spraying bridge maintenance equipment can conserve to bridge member.
Description
Technical field
The invention belongs to bridge construction mechanical field, specifically, is related to a kind of auto spraying bridge maintenance equipment.
Background technology
After the completion of beams of concrete pours at present, to prevent concrete cracking, concrete moisture retention is conserved in 12 hours, commonly
The time of concrete water seasoning must not be less than 7 days, must not be less than 14 days for the curing time of water-tight concrete.It is basic at present
On all using the artificial method for shining water curing, but the maintenance manually to beam within curing period is difficult to comprehensively and effectively carry out, especially
It is the unmanageable suitable watering time, and is difficult to effectively carry out for a long time.Especially need to safeguard that the quantity of beam is more
When, maintenance worker is difficult to cause beam body concrete surface to ftracture with respect to the maintenance situation of all beams, ultimately results in the matter of beam
Amount declines.
Therefore, it is necessary to provide a kind of auto spraying bridge maintenance equipment.
The content of the invention
It is an object of the present invention to provide a kind of auto spraying bridge maintenance equipment.
According to an aspect of the present invention, a kind of auto spraying bridge maintenance equipment, including guide rail and equipment master are disclosed
Body；
The equipment body includes main car frame, drive mechanism, subframe, spray bracket and control cabinet；
The guide rail is two, is set in parallel on concrete component, the both ends of a guide rail are respectively arranged with limiting block
Plate；
The main car frame is arranged on two guide rails, and water tank, high-pressure hydraulic pump and sensing are provided with the main car frame
Device, water tank are connected by low-pressure tube with the water inlet of high-pressure hydraulic pump, and the delivery port of high-pressure hydraulic pump is connected with high-pressure conduit, high
Pressure regulator valve is provided with pressure conduit, the both ends of main car frame are respectively arranged with the sensor corresponding with the postive stop baffle, described
Main car frame is configured as moving along the direction of both ends of guide rail, and the postive stop baffle is configured as being moved to guide rail in main car frame
Trigger sensor during one end；
The drive mechanism is configured as driving the main car frame to move on the guide rail；
The both ends of the subframe are connected by two bearings with two directive wheels respectively, and subframe is hinged on main car frame
On；
The spray bracket is fixedly installed on the main car frame, is stretched out and is extended downwardly along main car frame both sides, is arranged
The concrete component, high-pressure conduit are laid along spray bracket, and several are provided with high-pressure conduit to concrete component side
To the shower nozzle of stretching；
The control cabinet is arranged on the main car frame, has control module, the control module point in the control cabinet
It is not electrically connected with drive mechanism and sensor.
Alternatively, the drive mechanism includes motor, two driven pulleys, two driving wheels, two decelerators and two
Individual driving wheel, the both ends of motor connect respectively at two driving wheels, and fixation connects respectively for two driven pulleys and two driving wheels
The both sides of two decelerators are connected on, described two driven pulleys are connected by two driving belts with two driving wheels respectively, institute
State motor and described two decelerators are fixedly installed on the main car frame.
Alternatively, the subframe is hinged by nylon jacket and the main car frame.
Alternatively, the pressure regulator valve is automatically controlled pressure regulator valve, and the pressure regulator valve electrically connects with the control module.
Alternatively, it is provided with inductor in water tank.
Alternatively, the inductor electrically connects with the control module.
Alternatively, the spray bracket is seamless steel pipe, is connected with the high-pressure conduit, and the shower nozzle is arranged on described
In spray bracket.
Alternatively, the first radio receiving transmitting module, first radio receiving transmitting module and institute are additionally provided with the control cabinet
Control module electrical connection is stated, the auto spraying bridge maintenance equipment also includes remote control terminal, and the remote control terminal has
Second radio receiving transmitting module, the first radio receiving transmitting module and the second radio receiving transmitting module wireless connection.
According to another aspect of the present invention, there is provided a kind of bridge member maintenance process, using above-mentioned auto spraying bridge
Beam is maintained equipment；Method and step is：
Step 1, two guide rail parallels are fixed on the bridge member for needing to conserve, two postive stop baffles is distinguished
Installed in the beginning and end of guide rail；
Step 2, equipment body is positioned over to the start position of guide rail；Spray bracket is installed according to the size of fixture, to
Water tank topped up with water；
Step 3, operational factor is inputted to the control module of auto spraying bridge maintenance equipment, and adjusts the switch of pressure regulator valve
Size；
Step 4, start auto spraying bridge maintenance equipment, bridge member is conserved.
Alternatively, the operational factor described in step 3 includes water at equipment cycle-index, equipment travel speed and shower nozzle
Flow velocity；
The relation of the flow velocity of water is at the equipment cycle-index, equipment travel speed and shower nozzle：
First, the heat of hydration of concrete is calculated by the heat of hydration of cement, process is as follows：
The hyperbolic numerical expression expression formula of hydration heat of cement
In formula：Accumulation heat of hydration when Q (t) is age t, kJ/kg；Q0For t ∞ when the final heat of hydration, kJ/kg；T is
Age, a, b are constant；
Then the heat of hydration of the concrete of unit volume is：
Q1(t)=Q (t) m1·k2·k3
In formula：m1For the quality of cement in unit volume concrete, obtained by the match ratio of concrete；k2Mixed for difference
Measure admixture heat of hydration regulation coefficient, k3The correction factor being had an impact for thermal climate to the heat of hydration, takes 0.95~1.05；
Secondly, solar radiant heat is calculated：
The solar radiant heat that unit area receives per hour is：Q2=S0(1-k4·n)·β
In formula：Q2For cloudy solar radiant heat；S0For fine day solar radiant heat；N is cloud amount；k4For coefficient；β is absorption system
Number 0.65；
Total amount of heat is caused by concrete
QAlways(n)=[an·V1+Q2·STable·12]·k5·k6
In formula：V1For concrete component volume；STableAccumulated for surface of concrete structure；k5For demeanour coefficient, 1.0~1.1 are taken；
k6For temperature coefficient, 0.9~1.1 is taken
Heat=specific heat capacity × quality × heating that every kilogram of water volatilization needs, i.e.,
qJ=4.2 × 103× 1 × 75 DEG C=315kJ
Water needed for concrete component unit area is：
If its a diameter of 0.16m of area that the water smoke that shower nozzle sprays is covered, equipment need to only move forward 6m
The concrete of unit area is covered, then：
In formula, n is the daily cycle-index of equipment；VDrivingFor the speed of equipment traveling, m/s；VStreamFor the flow velocity of water at shower nozzle
kg/s。
One of the present invention has technical effect that auto spraying bridge maintenance equipment can conserve to bridge member.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of structural representation of embodiment of the present invention；
Fig. 2 is a kind of structural representation of the main car frame of embodiment of the present invention；
Fig. 3 is a kind of structural representation of the drive mechanism of embodiment of the present invention；
Fig. 4 is the electrical connection schematic diagram in a kind of embodiment of the present invention.
In figure：Main car frame 1, directive wheel 2, guide rail 3, subframe 4, shower nozzle 5, spray bracket 6, control cabinet 7, low-pressure tube 8,
Driving wheel 9, postive stop baffle 10, water tank 11, pressure regulator valve 12, high-pressure conduit 13, high-pressure hydraulic pump 14, motor 15, driving belt
16th, driven pulley 17, driving wheel 18, nylon jacket 19, decelerator 20, bearing 21, sensor 22.
Embodiment
Describe embodiments of the present invention in detail below in conjunction with embodiment, thereby to the present invention how application technology hand
Section can fully understand and implement according to this to solve technical problem and reach the implementation process of technical effect.
1-4 illustrates to the technical scheme of the application below in conjunction with the accompanying drawings.
A kind of auto spraying bridge maintenance equipment provided by the invention, as shown in figure 1, including guide rail 3 and equipment body；
The equipment body includes main car frame 1, drive mechanism, subframe 4, spray bracket 6 and control cabinet 7.
The guide rail 3 is two, is set in parallel on concrete component.The both ends of a guide rail 3 are set respectively wherein
Limited location baffle plate 10, the both ends of guide rail 3 are respectively beginning and end.The guide rail 3 can be the track of regular length.Can also
It is the track that multistage is spliced.How those skilled in the art are it is to be understood that the specific length of guide rail 3 and to set, Ke Yigen
It is determined according to the length for the concrete component for needing to conserve.
The main car frame 1 is arranged on two guide rails 3, can be moved along the direction of both ends of guide rail 3, can be with
Starting point is moved to along starting point direction；It can also be moved to terminal along terminal direction.
Water tank 11, high-pressure hydraulic pump 14 and sensor 22 are provided with the main car frame 1.Water tank 11 by low-pressure tube 8 with
The water inlet of high-pressure hydraulic pump 14 is connected.The delivery port of high-pressure hydraulic pump 14 is connected with high-pressure conduit 13.On the high-pressure conduit 13
It is provided with pressure regulator valve 12.Pressure regulator valve 12 is used for the pressure for controlling current in high-pressure conduit 13, further, can control current
Flow velocity.High-pressure hydraulic pump 14 can extract the water in water tank 11 out, then be discharged by high-pressure conduit 13.
The both ends of the main car frame 1 are respectively arranged with the sensor 22 corresponding with the postive stop baffle 10, when main car frame 1
When being moved to the starting point of guide rail 3, the sensor 22 for being arranged on the starting point direction of main car frame 1 is arranged on the postive stop baffle of start position
10 are triggered.When main car frame 1 is moved to the terminal of guide rail 3, the sensor 22 for being arranged on the terminal direction of main car frame 1 is set
Postive stop baffle 10 in final position is triggered.
The drive mechanism is used to drive the main car frame 1 to move on the guide rail 3, and the drive mechanism can drive
Main car frame 1 moves to starting point direction, can also be moved to terminal direction.For example, the driving structure of similar automobile, including start
Machine, gearbox and wheel, it can be advanced or moved backward by cooperating；
The both ends of the subframe 4 are connected by two bearings 21 with two directive wheels 2 respectively, and subframe 4 is hinged on
On main car frame 1；The directive wheel 2 can be separately positioned on the guide rail 3, can also be arranged on simultaneously guide rail 3 inner side or
On the outside of person.The structural system being combined using main car frame 1 with subframe 4, the stability of whole equipment can be improved and be applicable
Property.
The spray bracket 6 is fixedly installed on the main car frame 1.High-pressure conduit 13 is laid along spray bracket 6.Set
The purpose of spray bracket 6 is to provide the support of high-pressure conduit 13.Also needed because concrete component is a kind of stereochemical structure, during maintenance
Carry out comprehensive maintenance.Spray bracket 6 is stretched out and extended downwardly along the both sides of main car frame 1, can surround the concrete structure
Part.It is corresponding with the concrete component cross section of the moving direction of main car frame 1, without prejudice to the movement of main car frame 1.Common is transversal
Face is the shapes such as rectangle.So, high-pressure conduit 13 can also surround the concrete component, and be provided with high-pressure conduit 13
Several shower nozzles 5 stretched out to concrete component direction.The shower nozzle 5 is used to spray after the water atomization in high-pressure conduit 13.
When main shop 1 moves, high-pressure hydraulic pump 14 works, it is possible to comprehensive to carry out spray maintenance to concrete component；
When the concrete component for needing to conserve is long, more auto spraying bridge maintenance equipment can also be set to carry out same
When conserve.
The control cabinet 7 is arranged on the main car frame 1.Control module is provided with the control cabinet 7.The control mould
Block is electrically connected with drive mechanism and sensor 22 respectively.The control module can be with circuit board, process chip, either
PLC, DCS dispatch control system.When equipment is run, when the sensor 22 for being arranged on the starting point direction of main car frame 1 is arranged on starting point
The postive stop baffle 10 of position is triggered, and control cabinet 7 can control drive mechanism to stop driving main car frame 1 and move, or driving master
Vehicle frame 1 moves to terminal direction.When the sensor 22 for being arranged on the terminal direction of main car frame 1 is arranged on the spacing of final position
Baffle plate 10 is triggered, control cabinet 7 can control drive mechanism stop driving main car frame 1 move, or driving main car frame 1 to rise
The movement of point direction.
Alternatively, as shown in Figures 2 and 3, the drive mechanism includes the master of driven pulley 17, two of motor 15, two
Driving wheel 18, two decelerators 20 and two driving wheels 9, the both ends of motor 15 connect respectively at two driving wheels 18, two
Driven pulley 17 and two driving wheels 9 are respectively fixedly connected with to be led to respectively in the both sides of two decelerators 20, described two driven pulleys 17
Cross two driving belts 16 with two driving wheels 18 to be connected, the motor 15 and described two decelerators 20 are fixed and set
Put on the main car frame 1.When motor 15 rotates, driving wheel 9 can be driven to rotate.The driving wheel 9 can be distinguished
It is arranged on the guide rail 3, the inner side or outside of guide rail 3 can also be arranged on simultaneously.
Preferably, the motor 15 is either-rotation motor.
Alternatively, as depicted in figs. 1 and 2, the subframe 4 is be hinged by nylon jacket 19 and the main car frame 1.
Alternatively, the pressure regulator valve 12 is automatically controlled pressure regulator valve.The pressure regulator valve 12 electrically connects with the control module.With electricity
Son control replaces manual control.For example, the pressure transmitter that electronic control pressure reducing valve has by itself is delivered to the signal of transmission
In control module, judge whether the scope for reaching default pressure according to preset value, if pressure exceeds, control module can be letter
Number automatically controlled pressure regulator valve is passed to, angle that automatically controlled pressure regulator valve is opened is changed to reach the effect of decompression according to the size of adjustment pressure
Fruit.
Alternatively, it is provided with inductor in water tank 11.The inductor can be the visual liquid level such as float-ball type, glass tube
Meter or fluid level transmitter or two position sensor, it specifically can more be actually needed and be configured.
Preferably, the inductor can electrically connect with the control module.Operating personnel can thus be easily facilitated
The water situation in water tank is grasped, can replace manually being observed.
Alternatively, the spray bracket 6 is hollow rigid pipeline, such as seamless steel pipe.As shown in figure 1, spray bracket 6 with
The high-pressure conduit 13 is connected, and the shower nozzle 5 is arranged in the spray bracket 6.Now, it is possible to the generation of spray bracket 6
For high-pressure conduit 13.Hollow rigid pipeline can be welded as needed, a variety of connections such as flange connection or threaded connection
Form is to meet use demand.So that the structure of equipment is simpler, and dismounts simply, material can recycle.
Alternatively, the control module is electrically connected with high-pressure hydraulic pump 14, drive mechanism, sensor 22 respectively.Control
Module can realize the start and stop of control high-pressure hydraulic pump 14；The start and stop of drive mechanism, driving direction can be controlled；Or pass through reception
The signal of sensor 22 controls these control modes such as the start and stop of drive mechanism, driving direction.
Alternatively, as shown in figure 4, being additionally provided with the first radio receiving transmitting module in the control cabinet 7, the described first wireless receipts
Hair module electrically connects with the control module, and the auto spraying bridge maintenance equipment also includes remote control terminal, described long-range
Control terminal has the second radio receiving transmitting module, the first radio receiving transmitting module and the second radio receiving transmitting module wireless connection.It is described remote
Process control end can be the terminal devices such as computer；First radio receiving transmitting module can pass through with the second radio receiving transmitting module
The wireless modes such as WiFi, bluetooth are attached.The remote control terminal can obtain the equipment by way of wireless connection
Data, further, be also obtained with the operation conditions of the equipment, be easy to staff grasp maintenance situation and equipment fortune
Market condition.
Alternatively, the equipment can carry out controlled in wireless by remote control terminal, and effector can pass through remote control
Realize effective control to equipment in end.The maintenance plan of needs is drawn according to analysis bridge material and structure, and uses remote control
Hold to send to equipment and instruct, its aspect that can be controlled can include：The equipment speed of service, flow rate of water flow, equipment circulating maintenance
Startup and termination of rest time, equipment after number, equipment operation once etc., the control module in equipment is receiving instruction
In the case of can accurately perform the maintenance plan of bridge.
Alternatively, be additionally provided with warning device in the control cabinet 7, when equipment operation failure, water reach setting value or
, can be as needed when the maintenance of person's equipment terminates, send alarm signal.The alarm signal can be voice signal,
Optical signalling etc. or electronic signal are transferred to remote control terminal.
The present invention changes the conventional artificial wet curing mode of concrete, develops a set of continuous rigid frame bridge Cantilever Beam Construction phase
Intelligent curing system exploitation, bridge intelligently conserves under the conditions of realizing extreme landform, i.e.,：Optimal spray is manually set in the controls
Water curing mode, the requirement for replacing manually inputting by us by machinery equipment carry out automatic maintenance, can so be directed to concrete
Structure early-age shrinkage cracking problem, formulates optimal maintenance plan, accurately controls curing condition, improves the property of bridge concrete structure
Energy.Maintenance cost can be reduced in addition, reduce the danger of maintenance operations, it is easy to operate, it is easy to carry.
A kind of auto spraying bridge maintenance equipment as shown in Figure 1 and Figure 4, it is using the maintenance process of the equipment：This sets
Standby to carry out controlled in wireless by remote control terminal, such as computer, effector can pass through computer realization pair in certain distance
The control of equipment, the maintenance plan of needs is drawn by analyzing bridge material and structure, and sent and instructed to equipment with computer, its
The aspect that can be controlled mainly includes：Stop after the equipment speed of service, flow velocity, equipment circulating maintenance number, equipment operation once
Time, the startup of equipment and termination etc. are ceased, the control module in equipment can accurately perform bridge in the case where receiving instruction
The maintenance plan of beam.
Before computer carries out wireless data transmission to equipment, first by two guide rails 3 it is parallel be fixed on need to conserve it is mixed
Coagulate on native component, then two postive stop baffles 10 are separately mounted to the beginning and end of guide rail, then equipment is positioned over and led
The start position of rail, then the topped up with water of feed-tank 11, can make it conserve component equipment input instruction afterwards.
When computer carries out wireless data transmission to equipment, data required for obtained maintenance plan will can be in advance analyzed
(rest time after the equipment speed of service, flow velocity, equipment circulating maintenance number, equipment operation once) is entered by computer to equipment
Row transmission.After equipment receives the data of computer transmission, bring into operation, drive the operating of driving wheel 9 to make equipment in motor 15
While operation, the water in water tank 11 is introduced into low-pressure tube 8 by the effect of high-pressure hydraulic pump 14, in the control of pressure regulator valve 12
Under, extruded from high-pressure conduit 13, into spray bracket 6, water is sprayed by the flow velocity of design by the shower nozzle 5 in spray bracket 6,
To reach the effect of fog curing.
Equipment in the process of running, could be arranged to when water level is less than 1/3rd, equipment can send ' ticking ' ' ticking ' two
Sound is as prompting sound；When water level is less than 1/5th, equipment can send ' ticking ' ' ticking ' ' ticking ' three sound as audio warning, so
Out of service immediately afterwards, now effector answers pass hull closure care action, and control device operation returns to Jia Shuichu and adds water；Work as equipment
When running to close to the position of terminal, because the inductor 21 installed in equipment senses the postive stop baffle for being previously placed in terminal
10, equipment can send out of service and maintenance after length ' ticking ', and equipment can be sent again after completing set event
The sound of ' ticking ', brings into operation.
According to concrete curing requirement and condition, the heat of hydration of required maintenance water and concrete,
The relation of the flow velocity of water is as follows at equipment cycle-index, equipment travel speed and shower nozzle：
First, the heat of hydration of concrete is calculated by the heat of hydration of cement, process is as follows：
The hyperbolic numerical expression expression formula of hydration heat of cement
In formula：Accumulation heat of hydration when Q (t) is age t, kJ/kg；Q0For t ∞ when the final heat of hydration, kJ/kg；T is
Age, a, b are constant；The constant Q in formula is obtained according to testing data0, a, b, be shown in Table 1.
The hydrated cementitious thermal constant of table 1
Then the heat of hydration of the concrete of unit volume is：
Q1(t)=Q (t) m1·k2·k3
In formula：m1For the quality of cement in unit volume concrete, can be obtained by the match ratio of concrete；
k2For different addition quantity admixture heat of hydration regulation coefficient, its value is followed the example of referring to table 2；
The different addition quantity admixture heat of hydration regulation coefficient of table 2
| Volume | 0 | 10% | 20% | 30% | 40% |
| Flyash (k0) | 1 | 0.96 | 0.95 | 0.93 | 0.82 |
| Slag powders (k1) | 1 | 1 | 0.93 | 0.92 | 0.84 |
Note：Volume is the percentage that admixture accounts for total gel material content in table；
When scene is double-doped with slag powders using flyash, k2Value calculates according to the following formula： k2=k0+k1-1；
k3The correction factor being had an impact for thermal climate to the heat of hydration, takes 0.95~1.05；
Then the heat of hydration caused by the concrete of daily unit volume is respectively：
First day：q1=Q1(1)；
Second day：q2=Q1(2)-Q1(1)；
3rd day：q3=Q1(3)-Q1(2)；
……
N-th day：qn=Q1(n)-Q1(n-1)；
Secondly, solar radiant heat is calculated：
The solar radiant heat that unit area receives per hour is：Q2=S0(1-k4·n)·β
In formula：Q2For cloudy solar radiant heat；S0For fine day solar radiant heat, 3 are shown in Table；N is cloud amount；k4For coefficient, it is shown in Table
4；β is absorption coefficient 0.65.
The fine day solar radiant heat S of table 30Monthly average value [kJ/ (m2·h)]
The coefficient k of table 44Value
Therefore, total amount of heat caused by concrete is
QAlways(n)=[qn·V1+Q2·STable·12]ks·k6
In formula：V1For concrete component volume；STableAccumulated for surface of concrete structure；
k5For demeanour coefficient, 1.0~1.1 are taken；
k6For temperature coefficient, 0.9~1.1 is taken；
Again because heat=specific heat capacity × quality × heating that every kilogram of water volatilization needs, i.e.,
qJ=4.2 × 103× 1 × 75 DEG C=315kJ
Then the water needed for concrete component unit area is：
Its a diameter of 0.16m of area that the water smoke that shower nozzle sprays is covered can be set, then equipment need to only move forward 6m
The concrete of unit area can be covered, then：
In formula, n is the daily cycle-index of equipment；VDrivingFor the speed of equipment traveling, m/s；VStreamFor the flow velocity of water at shower nozzle
kg/s。
By above-mentioned empirical formula can obtain equipment cycle-index, at equipment travel speed and shower nozzle water stream
The relational expression of speed.
For example, it is C55 when needing curing concrete intensity, the physical dimension of component is 0.9 × 0.9 × 5 (units：M),
Location is Zhaotong County, Yunnan, and its latitude is 29.32 °, and fine, demeanour is gentle breeze.
The maintenance plan of design first day is as follows：
First, the heat of hydration of concrete is calculated by the heat of hydration of cement, can obtain according to the match ratio of concrete：Adopt
It is P.O 52.5 Portland cement 340kg, flyash 160kg, accounts for the 32% of total gel material content.Table look-up
It can obtain, Q0=350kJ/kg, a=0.36, b=0.74, therefore：
K can obtain by interpolation method2=0.908, take k3=0.95, then the heat of hydration of the concrete of unit volume be：
Q1(1)=Q (1) m1·k2·k3=105.81 × 340 × 0.908 × 0.95=31032kJ
Then the heat of hydration caused by the concrete of first day unit volume is respectively：
q1=Q1(1)；
Secondly, solar radiant heat is calculated, the component is constructed for July, and 29.32 ° of latitude, S can be obtained by tabling look-up0=1311.2
[kJ/(m2H)], β=0.65, cloud amount n=0, the then solar radiant heat that unit area receives per hour are：
Q2=S0(1-k4N) β=1311.2 × 0.65=852.28 [kJ/ (m2·h)]
Again because fine, demeanour is gentle breeze, and coefficient takes 1.05, and temperature coefficient takes 1.1.Therefore, it is total caused by concrete
Heat is：
QAlways(n)=[qn·V1+Q2·STable·12]k5·k6
=[31032 × 0.9 × 0.9 × 5+852.28 × (0.9 × 0.9 × 2+0.9 × 5 × 4) × 12]
×1.05×1.1
=376923kJ
Then the water needed for concrete component unit area is：
Its a diameter of 0.16m of area that the water smoke that shower nozzle sprays is covered can be set, then equipment need to only move forward 6m
The concrete of unit area can be covered, then：
In formula, n is the daily cycle-index of equipment；VDrivingFor the speed of equipment traveling, m/s；VStreamFor the flow velocity of water at shower nozzle
kg/s；The setting and adjustment of three data can be carried out according to actual conditions.
Some preferred embodiments of invention have shown and described in described above, but as previously described, it should be understood that invention is not
Form disclosed herein is confined to, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification
And environment, and can be carried out in the scope of the invention is set forth herein by the technology or knowledge of above-mentioned teaching or association area
Change., then all should be in power appended by invention and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of invention
In the protection domain that profit requires.
Claims (10)
1. a kind of auto spraying bridge maintenance equipment, it is characterised in that including guide rail (3) and equipment body；
The equipment body includes main car frame (1), drive mechanism, subframe (4), spray bracket (6) and control cabinet (7)；
The guide rail (3) is two, is set in parallel on concrete component, and the both ends of a guide rail (3) are respectively arranged with spacing
Baffle plate (10)；
The main car frame (1) is arranged on two guide rails (3), and water tank (11), water under high pressure are provided with the main car frame (1)
Pump (14) and sensor (22), water tank (11) are connected by low-pressure tube (8) with the water inlet of high-pressure hydraulic pump (14), high-pressure hydraulic pump
(14) delivery port is connected with high-pressure conduit (13), is provided with pressure regulator valve (12) on high-pressure conduit (13), and the two of main car frame (1)
End is respectively arranged with the sensor (22) corresponding with the postive stop baffle (10), and the main car frame (1) is configured as along leading
The direction of both ends movement of rail (3), the postive stop baffle (10) are configured as when main car frame (1) is moved to one end of guide rail (3)
Trigger sensor (22)；
The drive mechanism is configured as driving the main car frame (1) to move on the guide rail (3)；
The both ends of the subframe (4) are connected by two bearings (21) with two directive wheels (2) respectively, subframe (4) hinge
It is connected on main car frame (1)；
The spray bracket (6) is fixedly installed on the main car frame (1), is stretched out and is extended downwardly along main car frame (1) both sides,
The concrete component is arranged, high-pressure conduit (13) is laid along spray bracket (6), and high-pressure conduit is provided with several on (13)
The shower nozzle (5) stretched out to concrete component direction；
The control cabinet (7) is arranged on the main car frame (1), has control module, the control mould in the control cabinet (7)
Block is electrically connected with drive mechanism and sensor (22) respectively.
2. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that the drive mechanism includes driving
Motor (15), two driven pulleys (17), two driving wheels (18), two decelerators (20) and two driving wheels (9), motor
(15) both ends connect respectively at two driving wheels (18), and two driven pulleys (17) and two driving wheels (9) are respectively fixedly connected with
In the both sides of two decelerators (20), described two driven pulleys (17) pass through two driving belts (16) and two driving wheels respectively
(18) it is connected, the motor (15) and described two decelerators (20) are fixedly installed on the main car frame (1).
3. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that the subframe (4) passes through Buddhist nun
The actor playing a supporting role (19) is be hinged with the main car frame (1).
4. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that the pressure regulator valve (12) is automatically controlled
Pressure regulator valve, the pressure regulator valve (12) electrically connect with the control module.
5. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that water tank (11) is inner to be provided with sensing
Device.
6. auto spraying bridge maintenance equipment according to claim 5, it is characterised in that the inductor and the control
Module electrically connects.
7. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that the spray bracket (6) is nothing
Steel pipe is stitched, is connected with the high-pressure conduit (13), the shower nozzle (5) is arranged in the spray bracket (6).
8. auto spraying bridge maintenance equipment according to claim 1, it is characterised in that also set in the control cabinet (7)
The first radio receiving transmitting module is equipped with, first radio receiving transmitting module electrically connects with the control module, the auto spraying bridge
Beam maintenance of equipment also includes remote control terminal, and the remote control terminal has the second radio receiving transmitting module, the first wireless receiving and dispatching mould
Block and the second radio receiving transmitting module wireless connection.
9. a kind of bridge member maintenance process, it is characterised in that using as one of any auto spraying bridge such as claim 1-9
Maintenance of equipment；Method and step is：
Step 1, parallel be fixed on of two guide rails (3) is needed on the bridge member that conserves, by two postive stop baffles (10)
It is separately mounted to the beginning and end of guide rail；
Step 2, equipment body is positioned over to the start position of guide rail；Spray bracket (6), Xiang Shui are installed according to the size of fixture
Case (11) topped up with water；
Step 3, operational factor is inputted to the control module of auto spraying bridge maintenance equipment, and adjusts the switch of pressure regulator valve (12)
Size；
Step 4, start auto spraying bridge maintenance equipment, bridge member is conserved.
10. bridge member maintenance process according to claim 9, it is characterised in that the operational factor described in step 3 includes
The flow velocity of water at equipment cycle-index, equipment travel speed and shower nozzle；
The relation of the flow velocity of water is at the equipment cycle-index, equipment travel speed and shower nozzle：
First, the heat of hydration of concrete is calculated by the heat of hydration of cement, process is as follows：
The hyperbolic numerical expression expression formula of hydration heat of cement
In formula：Accumulation heat of hydration when Q (t) is age t, kJ/kg；Q0For t∞When the final heat of hydration, kJ/kg；T is age, a,
B is constant；
Then the heat of hydration of the concrete of unit volume is：
Q1(t)=Q (t) m1·k2·k3
In formula：m1For the quality of cement in unit volume concrete, obtained by the match ratio of concrete；k2Mixed for different addition quantity
Close material heat of hydration regulation coefficient, k3The correction factor being had an impact for thermal climate to the heat of hydration, takes 0.95~1.05；
Secondly, solar radiant heat is calculated：
The solar radiant heat that unit area receives per hour is：Q2=S0(1-k4·n)·β
In formula：Q2For cloudy solar radiant heat；S0For fine day solar radiant heat；N is cloud amount；k4For coefficient；β is absorption coefficient
0.65；
Total amount of heat is caused by concrete
QAlways(n)=[qn·V1+Q2·STable·12]·k5·k6
In formula：V1For concrete component volume；STableAccumulated for surface of concrete structure；
k5For demeanour coefficient, 1.0~1.1 are taken；k6For temperature coefficient, take heat that 0.9~1.1 every kilogram of water volatilization needs=
Specific heat capacity × quality × heating, i.e.,
qJ=4.2 × 103× 1 × 75 DEG C=315kJ
Water needed for concrete component unit area is：
If its a diameter of 0.16m of area that the water smoke that shower nozzle sprays is covered, the equipment 6m that need to only move forward can be covered
The concrete of unit area, then：
In formula, n is the daily cycle-index of equipment；VDrivingFor the speed of equipment traveling, m/s；VStreamFor the flow velocity kg/s of water at shower nozzle.
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| CN201710598585.5A CN107338731A (en) | 2017-07-21 | 2017-07-21 | A kind of auto spraying bridge maintenance equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710598585.5A CN107338731A (en) | 2017-07-21 | 2017-07-21 | A kind of auto spraying bridge maintenance equipment |
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| CN107338731A true CN107338731A (en) | 2017-11-10 |
Family
ID=60217368
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| CN201710598585.5A Pending CN107338731A (en) | 2017-07-21 | 2017-07-21 | A kind of auto spraying bridge maintenance equipment |
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| CN108151898A (en) * | 2018-01-05 | 2018-06-12 | 重庆大学 | A kind of steel box girder bridge simulation temperature measurement device |
| CN108203930A (en) * | 2018-02-05 | 2018-06-26 | 浙江八达隧道工程股份有限公司 | A kind of Bridge High-pier automatic spray health preserving equipment and its operating method |
| CN108277741A (en) * | 2018-01-29 | 2018-07-13 | 中铁四局集团有限公司 | A kind of automatic health-preserving method of Collison fence for bridge and equipment |
| KR102047208B1 (en) * | 2019-04-22 | 2019-11-22 | (주)리콘 | Steel Coating Material Injection Robot Device Capable Of Precise Construction And Coating Method Using The Same |
| CN110847934A (en) * | 2019-10-28 | 2020-02-28 | 中国人民解放军96782部队 | Tunnel concrete intelligence maintenance system |
| CN112681086A (en) * | 2020-12-17 | 2021-04-20 | 苌永涛 | Concrete highway pavement maintenance device |
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| CN112681086A (en) * | 2020-12-17 | 2021-04-20 | 苌永涛 | Concrete highway pavement maintenance device |
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