CN103471983A - Durability test device for simulating ocean tidal action in artificial environment - Google Patents
Durability test device for simulating ocean tidal action in artificial environment Download PDFInfo
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- CN103471983A CN103471983A CN2013103526902A CN201310352690A CN103471983A CN 103471983 A CN103471983 A CN 103471983A CN 2013103526902 A CN2013103526902 A CN 2013103526902A CN 201310352690 A CN201310352690 A CN 201310352690A CN 103471983 A CN103471983 A CN 103471983A
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Abstract
The invention discloses a durability test device for simulating the ocean tidal action in an artificial environment. The device includes a tide control system, a temperature and humidity control system, a blowing control system, a test box and a controller. The test box is in connection with the blowing control system, the temperature and humidity control system, and the tide control system. A corrosion water groove for placing a test piece is disposed in the test box, and is connected to a heat preservation salt water pool outside the test box through the tide control system. The blowing control system, the temperature and humidity control system and the tide control system are respectively connected to a PLC control module in the controller. The durability test device provided in the invention not only can automatically simulate the tidal action, but also can accurately control the environmental conditions in a tidal process. With the advantages of simple structure, high degree of automation, strong stability, good durability, and good user operation interface, the durability test device is completely suitable for tidal action simulation in different ocean environments.
Description
Technical field
The present invention relates to the durability test device of simulation oceanic tide effect in a kind of artificial environment.
Background technology
Reinforced concrete structure combines reinforcing bar and concrete advantage, is the first-selected pattern of civil engineering structure design.Ocean development is in recent years generally paid attention to, and reinforced concrete structure at sea production vessel, bridge spanning the sea is widely applied in building.Yet the reinforced concrete structure in marine environment can be subject to the erosion of villaumite, its endurance issues has become a global difficult problem gradually.Existing research shows, under the marine environment condition the corresponding hazardous medium of tidal action regional structure concrete corrode the most serious, the therefore key using it as durability design of structure.
In the transmitting procedure of villaumite, vital effect has been played in storage and the migration of moisture in concrete.Tidal action makes the top layer concrete have the moisture convective region, and the convection current transmitting effect of moisture has accelerated etching medium greatly to the transmission speed in concrete.Marine environment difference is huge all over the world, even at areal, marine environment also can be with seasonal variations, change round the clock and change, be mainly reflected in the continuous variation of environment temperature, humidity and three important parameters of wind speed, these three factors are directly related with concrete surface moisture diffusion speed, affect the degree of depth of concrete moisture convective region, top layer.Will be in the permanance of testing reinforced concrete structure under the desk research tidal action, the tidal action in simulating natural environment exactly, accurately control the artificial environment condition.
The Chinese utility model patent of the number of patent application 201020579952.0 of authorizing on May 25th, 2011 discloses a kind of eroding acceleration simulation test device for concrete chloride in seawater tide zone, this device can the tide simulation effect, but can not apply the artificial environment condition; The Chinese invention patent of the number of patent application 201010193132.2 of authorizing on November 21st, 2012 discloses for simulating the automatic test device of ocean tide environment, increased blowing device under the condition of tide simulation effect, but what be blown into is the outer natural air of test unit, and can not control humiture, wind speed is non-adjustable.
Summary of the invention
The present invention is directed to current eroding acceleration simulation test device for concrete chloride in seawater tide zone and have that can't to add the artificial environment conditioned disjunction be to control humiture, the nonadjustable problem of wind speed, proposed a kind of stability high, simple in structure, can realize carrying out robotization tidal action test unit under different artificial environmental baselines, ocean tide environment is carried out to the durability test device of simulation oceanic tide effect in effective simulated person's work environment.
The durability test device of simulation oceanic tide effect in artificial environment of the present invention, it is characterized in that: comprise the morning and evening tides control system, temperature and humidity control system, the blowing control system, test casing and controller, described morning and evening tides control system comprises the corrosion tank, brine pit, supplying drainage, the tap water water inlet pipe, described corrosion tank is placed in described test casing, between described corrosion tank and brine pit, through supplying drainage, be connected, described corrosion tank arranges level sensor and first time level sensor on first, described brine pit inside arranges level sensor and second time level sensor on second, described tap water water inlet pipe is connected with described brine pit through the first solenoid valve, the tap water water inlet pipe end stretched in brine pit is connected with the inner float switch arranged of brine pit, and the height of described float switch is greater than the height of level sensor on described second, on described the first solenoid valve, described first on level sensor, described first time level sensor, described second level sensor with described second time level sensor, all with described controller, be connected,
Described temperature and humidity control system comprises Temperature Humidity Sensor, evaporator, air-conditioning system, the first blower fan, the first motor and above-mentioned tap water water inlet pipe, described tap water water inlet pipe is connected with described evaporator, described Temperature Humidity Sensor, evaporator, air-conditioning system, the first blower fan, the first motor is installed in the seal cavity on described test casing side, and described Temperature Humidity Sensor is positioned at the air outlet place of described the first blower fan, described seal cavity is communicated with the inner chamber of test casing by the hole of test casing, and described the first blower fan, described the first motor, described air-conditioning system, described evaporator all is connected with described controller with described Temperature Humidity Sensor,
Described blower system comprises blower, air velocity transducer, the second blower fan and the second motor, and the second blower fan and air velocity transducer, the air outlet alignment test sample of described blower are installed in described blower; Described air velocity transducer is connected with controller, and the described magnetic drive pump that draws water, described draining magnetic drive pump, described the second blower fan, described the second motor are connected with described controller by frequency converter.
Described controller is comprised of three PLC modules, by programming and connecting controller, controls respectively morning and evening tides control system, warm and humid control system and blowing control system.
Described blower system is set up two wind deflector supports, peg, wind deflector, being arranged on bottom described corrosion tank outside, chamber of two described wind deflector support symmetries, described peg is fixed on described wind deflector support by height adjustment bolt; Described wind deflector horizontally suspends on the described peg be positioned at above the blower air outlet, and described wind deflector suspension height is identical with corrosion tank coboundary.
Described chamber inside and outside wall adopts fiberglass (epoxy resin and glass fibre), middle insulation material adopts hard foamed urethanes, bottom adopts the H section steel reinforcement, and sidewall is installed the anti-condensation organic glass observation window of heating, pressure-equalizing passageway, data detection signal line threading preformed hole.
How many described corrosion tank internal side wall, along draw-in groove highly is set, determines the installation site of level sensor on first according to test specimen; Described corrosion tank is highly installed level sensor in bottom first time far from bottom surface 5cm, and at the test bottom half, first row water pipe and second row water pipe is set respectively.
The liquid level tube of the external demonstration liquid level in described brine pit bottom.
The insulation brine pit lid with pressure compensation opening is installed on described brine pit top, and bottom connects supplying drainage and the 3rd drainpipe.
The inside of described brine pit adopts the SUS316L corrosion resistant plate, the outside fiberglass that adopts, and middle insulation material adopts hard foamed urethanes insulation.
Towards the hinged Warm keeping sheet with the identical material of test casing, uniform thickness on experimenter's described test casing, open the door.
Before on-test, test specimen is put into to the corrosion tank, volume according to the concrete sample volume with the required salt solution of volume calculations of corrosion tank, close the manually-operated gate of first row water pipe and the 3rd drainpipe, pour load weighted solid salt into brine pit, according to the control program operation control, manual unlocking the first solenoid valve, determine the add liquid level of tap water in liquid level tube according to the size of required brine concentration and brine pit, and the upper level sensor in brine pit is fixed on to this height of water level, add complete first solenoid valve of closing of water; By controller manually opened draw water magnetic drive pump and with the second solenoid valve of the magnetic drive pump coupling of drawing water (now, the 3rd closed electromagnetic valve of draining magnetic drive pump and control draining magnetic drive pump), manual-lock the second solenoid valve and the magnetic drive pump that draws water when the water level in brine pit drops to the lower level sensor in brine pit, according to the height of corrosion tank middle water level, level sensor on first is installed, wind deflector is installed subsequently in place; Test parameters is set on controller, parameter setting completed start-up routine; After program starts, air-conditioning system, the first motor and the first blower fan entry into service, evaporator, the second motor and the second blower fan do not turn round, in operational process, controller constantly obtains temperature signal from Temperature Humidity Sensor, adjust temperature in chamber until desired temperature, and keep stable, the salt solution in the corrosion tank also can reach set temperature gradually; After running to dry run, controller sends signal, the 3rd solenoid valve is opened, the entry into service of the magnetic drive pump of draining simultaneously, water level in the corrosion tank drops to the height of first time level sensor, controller is from first level sensor picked up signal, the draining magnetic drive pump shuts down, the 3rd closed electromagnetic valve simultaneously, now, (1) controller start from brine pit second on level sensor obtain signal, if water level is lower than level sensor on second, controller sends signal, and the first solenoid valve is opened, and the tap water water inlet pipe adds water to brine pit; After water level rises to the height of level sensor on second, controller level sensor from second obtains signal, closes the first solenoid valve, completes the supplementing water bit motion; (2) evaporator operation, controller obtains the humidity value the test casing from Temperature Humidity Sensor, and the humidity value of controlling in evaporator adjustment test casing reaches setting value, and the condensate water formed in the temperature and humidity regulation process is discharged by the second row water pipe; (3) second motors and the second blower fan bring into operation, and controller obtains wind velocity signal from air velocity transducer, and change the rotating speed of the second motor by frequency converter, adjust wind speed to setting value; While running to dry the end, controller sends signal, the second motor, the second fan evaporator shut down, the second solenoid valve is opened, the magnetic drive pump entry into service of simultaneously drawing water, when the water level in brine pit drops to the height of second time level sensor or the height of water level of corrosion in tank and reaches the height of level sensor on first, the second closed electromagnetic valve, the magnetic drive pump that simultaneously draws water shuts down; So, program repeat operation, reach set cycle index after the equipment operation stop, the discarded salt solution in corrosion tank and brine pit is discharged by first row water pipe and the 3rd drainpipe respectively.
The invention has the beneficial effects as follows: can the effect of automatic analog oceanic tide, accurately control time, the cycle index of dry run and immersion process, can automatically supplement the water evaporated in process of the test, and increase and add the water conservation device, improved security; Realized the accurate control of artificial environment condition in the tide analog process, especially realize environment temperature, humidity and the wind speed impact on moisture drying speed in the concrete surface dry run after accurately simulation ebb, make that whole process of the test is accurately controlled, environmental baseline can quantize; Blowing process apoplexy speed control system, aerial temperature and humidity control have been realized.By being set, the artificial environment parameter can also realize the permanance accelerated test; Device is simple, easy to operate, cheap, can really realize the tidal action endurancing that environmental baseline is controlled.
The accompanying drawing explanation
Fig. 1 is structural framing figure of the present invention.
The part-structure schematic diagram that Fig. 2 is test unit of the present invention.
Fig. 3 is each assembly of the present invention and controller connection diagram.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing
With reference to accompanying drawing:
The durability test device of simulation oceanic tide effect in embodiment 1 artificial environment of the present invention, comprise morning and evening tides control system 1, temperature and humidity control system 2, blowing control system 3, test casing 4 and controller 5, described morning and evening tides control system 1 comprises corrosion tank 11, brine pit 12, supplying drainage 13, tap water water inlet pipe 14, described corrosion tank 11 is placed in described test casing 4, between described corrosion tank 11 and brine pit 12, through supplying drainage 13, be connected, described corrosion tank 11 arranges level sensor 111 and first time level sensor 112 on first, described brine pit 12 inside arrange level sensor 121 and second time level sensor 122 on second, described tap water water inlet pipe 14 is connected with described brine pit 12 through the first solenoid valve 141, tap water water inlet pipe 14 ends that stretch in brine pit 12 are connected with the inner float switch 123 arranged of brine pit 12, and the height of described float switch 123 is greater than the height of level sensor 121 on described second, on described the first solenoid valve 141, described first on level sensor 111, described first time level sensor 112, described second level sensor 121 with described second time level sensor 122, all with described controller 5, be connected,
Described temperature and humidity control system 2 comprises Temperature Humidity Sensor 21, evaporator 22, air-conditioning system 23, the first blower fan 24, the first motor 25 and above-mentioned tap water water inlet pipe 14, described tap water water inlet pipe 14 is connected with described evaporator 22, described Temperature Humidity Sensor 21, evaporator 22, air-conditioning system 23, the first blower fan 24, the first motor 25 is installed in the seal cavity on described test casing 4 sides, and described Temperature Humidity Sensor is positioned at the air outlet place of described the first blower fan, described seal cavity is communicated with the inner chamber of test casing by the hole of test casing, and described the first blower fan 24, described the first motor 25, described air-conditioning system 23, described evaporator 22 all is connected with described controller 5 with described Temperature Humidity Sensor 21,
Described blower system 3 comprises blower 31, air velocity transducer 32, the second blower fan 33 and the second motor 34, and the second blower fan 33 and air velocity transducer 32, the air outlet alignment test sample 6 of described blower 31 are installed in described blower 31; Described air velocity transducer 32 is connected with controller 5, and described the second blower fan 33, described the second motor 34 are connected with described controller 5 by frequency converter.
Described controller 5 is comprised of three PLC modules, by programming and connecting controller, controls respectively morning and evening tides control system 1, warm and humid control system 2 and blowing control system 3.
Be installed in parallel draw water magnetic drive pump 15 and draining magnetic drive pump 16 on described supplying drainage 13, and described magnetic drive pump 15 configuration the second solenoid valves 151 that draw water, described draining magnetic drive pump 16 configuration the 3rd solenoid valves 161, the described magnetic drive pump 15 that draws water, described draining magnetic drive pump 16, described the second solenoid valve 151, described the 3rd solenoid valve 161 all are connected with described controller 5.
Described blower system 3 is set up two wind deflector supports 35, peg 36, wind deflector 37, two described wind deflector support 35 symmetries be arranged on described corrosion tank 11 outsides, chamber 4 bottoms, described peg 36 is by being fixed on by height adjustment bolt 38 on described wind deflector support 35; Described wind deflector 37 horizontally suspends on described peg 36, and described wind deflector 37 suspension heights are identical with corrosion tank 11 coboundarys.
Described test casing 4 inside and outside walls adopt fiberglass (epoxy resin and glass fibre), middle insulation material adopts hard foamed urethanes, bottom adopts H shaped steel 41 to reinforce, and sidewall is installed the anti-condensation organic glass observation window 42 of heating, pressure-equalizing passageway 43, data detection signal line threading preformed hole 44.
How many described corrosion tank 11 internal side wall, along draw-in groove highly is set, determine the installation site of level sensor 111 on first according to test specimen; Described corrosion tank 11 is highly installed level sensor 112 in bottom first time far from bottom surface 5cm, and connects respectively first row water pipe 113 and second row water pipe 114 in test casing 4 bottoms.
The liquid level tube 124 of the described brine pit 12 external demonstration liquid levels in bottom.
The insulation brine pit lid 125 with pressure compensation opening 1251 is installed on described brine pit 12 tops, and bottom connects supplying drainage 13 and the 3rd drainpipe 126.
The inside of described brine pit 12 adopts the SUS316L corrosion resistant plate, the outside fiberglass (epoxy resin and glass fibre) that adopts, the hard foamed urethanes insulation material of middle employing.
Towards the hinged Warm keeping sheet with the identical material of test casing, uniform thickness on experimenter's described test casing 4, open the door.
Embodiment 2 be take the test unit of embodiment 1 and is tested: test parameters is set on controller: 35 ℃ of environment temperatures, relative humidity as 70%, wind speed is 2m/s, the morning and evening tides system is 9:00～21:00 immersion process, 21:00～9:00 dry run, circulate 60 times.Suppose to be now 9:00.Parameter setting completed start-up routine:
Before on-test, test specimen is put into to corrosion tank 11, volume according to the concrete sample volume with the required salt solution of volume calculations of corrosion tank 11, close the manually-operated gate of first row water pipe 113 and the 3rd drainpipe 126, pour load weighted solid salt into brine pit 12, according to control program operation control 5, manual unlocking the first solenoid valve 141, determine the add liquid level of tap water in liquid level tube 124 according to the size of required brine concentration and brine pit 12, and level sensor 121 on second is fixed on to this height of water level, add complete first solenoid valve 141 of closing of water, by controller 5 manually opened draw water magnetic drive pump 15 and with the second solenoid valve 151(of magnetic drive pump 15 coupling of drawing water now, the 3rd solenoid valve 161 of draining magnetic drive pump 16 and control draining magnetic drive pump 16 cuts out), manual-lock the second solenoid valve 151 and the magnetic drive pump 15 that draws water when the water level in brine pit 12 drops to second time level sensor 122, according to the height of corrosion tank 11 middle water levels, level sensor 111 on first is installed, wind deflector 37 is installed subsequently in place, on controller 5, test parameters is set, parameter setting completed start-up routine,
After program starts, air-conditioning system 23, the first motor 25 and the first blower fan 24 entrys into service, evaporator 22, the second motor 34 and the second blower fan 33 do not turn round, in operational process, controller 5 constantly obtains temperature signal from Temperature Humidity Sensor 21, temperature in the adjustment chamber is until temperature reaches setting value, and maintenance is stable, and the salt solution in corrosion tank 11 also can reach set temperature gradually, run to 21:00, the 3rd solenoid valve 161 is opened, 16 entrys into service of the magnetic drive pump of draining simultaneously, water level in corrosion tank 11 drops to the height of first time level sensor 112, controller 5 is from first level sensor 112 picked up signal, draining magnetic drive pump 16 shuts down, the 3rd solenoid valve 161 cuts out simultaneously, now, (1) controller 5 start from brine pit 12 second on level sensor 121 obtain signal, if water level is lower than level sensor 121 on second, controller 5 sends signal, the first solenoid valve 141 is opened, tap water water inlet pipe 14 adds water to brine pit 12, after water level rises to the height of level sensor 121 on second, controller 5 obtains the signal of level sensor 121 on second, closes the first solenoid valve 141, (2) evaporator 22 operations, controller 5 obtains the humidity value test casing 4 from Temperature Humidity Sensor 21, the humidity value of controlling in evaporator 22 adjustment test casings 4 reaches setting value, and the condensate water formed in the temperature and humidity regulation process is discharged by second row water pipe 114, (3) second motors 34 and the second blower fan 33 bring into operation, and controller 5 obtains wind velocity signal from air velocity transducer 32, and change the rotating speed of the second motor 34 by frequency converter, adjust wind speed to setting value, run to 9:00, controller 5 sends signal, the second motor 34, the second blower fan 33 evaporators 22 shut down, the second solenoid valve 151 is opened, magnetic drive pump 15 entrys into service of simultaneously drawing water, when the water level in brine pit 12 drops to the height of second time level sensor 122 or the height of water level of corrosion in tank 11 and reaches the height of level sensor 111 on first, the second solenoid valve 151 cuts out, and the magnetic drive pump 15 that simultaneously draws water shuts down, so, the program repeat operation, after 60 circulations, the equipment operation stops, and the discarded salt solution in corrosion tank 11 and brine pit 12 is discharged by first row water pipe 113 and the 3rd drainpipe 126 respectively.
The described content of this instructions embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also comprises that those skilled in the art conceive the equivalent technologies means that can expect according to the present invention.
Claims (10)
1. simulate the durability test device of oceanic tide effect in artificial environment, it is characterized in that: comprise the morning and evening tides control system, temperature and humidity control system, the blowing control system, test casing and controller, described morning and evening tides control system comprises the corrosion tank, brine pit, supplying drainage, the tap water water inlet pipe, described corrosion tank is placed in described test casing, between described corrosion tank and brine pit, through supplying drainage, be connected, described corrosion tank arranges level sensor and first time level sensor on first, described brine pit inside arranges level sensor and second time level sensor on second, described tap water water inlet pipe is connected with described brine pit through the first solenoid valve, the tap water water inlet pipe end stretched in brine pit is connected with the inner float switch arranged of brine pit, and the height of described float switch is greater than the height of level sensor on described second, on described the first solenoid valve, described first on level sensor, described first time level sensor, described second level sensor with described second time level sensor, all with described controller, be connected,
Described temperature and humidity control system comprises Temperature Humidity Sensor, evaporator, air-conditioning system, the first blower fan, the first motor and above-mentioned tap water water inlet pipe, described tap water water inlet pipe is connected with described evaporator, described Temperature Humidity Sensor, evaporator, air-conditioning system, the first blower fan, the first motor is installed in the seal cavity on described test casing side, and described Temperature Humidity Sensor is positioned at the air outlet place of described the first blower fan, described seal cavity is communicated with the inner chamber of test casing by the hole of test casing, and described the first blower fan, described the first motor, described air-conditioning system, described evaporator all is connected with described controller with described Temperature Humidity Sensor,
Described blower system comprises blower, air velocity transducer, the second blower fan and the second motor, and the second blower fan and air velocity transducer, the air outlet alignment test sample of described blower are installed in described blower; Described air velocity transducer is connected with controller, and described the second blower fan, described the second motor are connected with described controller by frequency converter.
2. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 1, it is characterized in that: described controller is comprised of three PLC modules, by programming and connecting controller, controls respectively morning and evening tides control system, warm and humid control system and blowing control system.
3. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 2, it is characterized in that: be installed in parallel draw water magnetic drive pump and draining magnetic drive pump on described supplying drainage, and the described magnetic drive pump that draws water configures the second solenoid valve, described draining magnetic drive pump configuration the 3rd solenoid valve, and the described magnetic drive pump that draws water, described draining magnetic drive pump, described the second solenoid valve, described the 3rd solenoid valve all are connected with described controller.
4. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 3, it is characterized in that: described blower system is set up two wind deflector supports, peg, wind deflector, being arranged on bottom described corrosion tank outside, chamber of two described wind deflector support symmetries, described peg is fixed on described wind deflector support by height adjustment bolt; Described wind deflector horizontally suspends on the described peg be positioned at above the blower air outlet, and described wind deflector suspension height is identical with corrosion tank coboundary.
5. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 4, it is characterized in that: described chamber inside and outside wall adopts fiberglass (epoxy resin and glass fibre), middle insulation material adopts hard foamed urethanes, bottom adopts the H section steel reinforcement, and sidewall is installed the anti-condensation organic glass observation window of heating, pressure-equalizing passageway, data detection signal line threading preformed hole.
6. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 5, it is characterized in that: how many described corrosion tank internal side wall, along draw-in groove highly is set, determines the installation sites of level sensor on first according to test specimen; Described corrosion tank is highly installed level sensor in bottom first time far from bottom surface 5cm, and at the test bottom half, first row water pipe and second row water pipe is set respectively.
7. the durability test device of simulation oceanic tide effect in artificial environment as claimed in claim 6, is characterized in that: the liquid level tube of the external demonstration liquid level in described brine pit bottom.
8. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 7, it is characterized in that: the insulation brine pit lid with pressure compensation opening is installed on described brine pit top, and bottom connects supplying drainage and the 3rd drainpipe.
9. simulate the durability test device of oceanic tide effect in artificial environment as claimed in claim 8, it is characterized in that: the inside of described brine pit adopts the SUS316L corrosion resistant plate, the outside fiberglass that adopts, middle insulation material adopts hard foamed urethanes insulation.
10. the durability test device of simulation oceanic tide effect in artificial environment as claimed in claim 9 is characterized in that: towards the hinged Warm keeping sheet with the identical material of test casing, uniform thickness on experimenter's described test casing, open the door.
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