CN216247650U - Device for simulating corrosion and fatigue coupling of component - Google Patents
Device for simulating corrosion and fatigue coupling of component Download PDFInfo
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- CN216247650U CN216247650U CN202122821494.8U CN202122821494U CN216247650U CN 216247650 U CN216247650 U CN 216247650U CN 202122821494 U CN202122821494 U CN 202122821494U CN 216247650 U CN216247650 U CN 216247650U
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Abstract
The utility model provides a device for simulating component corrosion and fatigue coupling action, which comprises a loading device, an environment box and a control device, wherein the loading device comprises a support frame, an actuator, a first force transmission rod, a second force transmission rod, a first clamp, a second clamp and a support device, wherein the actuator, the first force transmission rod, the second force transmission rod, the first clamp, the second clamp and the support device are arranged on the inner side of the support frame; the environment box frame is arranged on the outer side of the component to be simulated; the control device comprises a control cabinet, a master control module, an exhaust fan, a heater, a refrigerating unit, a liquid storage tank, a liquid pump, an air compressor, a plurality of spray heads and a temperature and humidity instrument, wherein the master control module, the exhaust fan, the heater, the refrigerating unit, the liquid storage tank, the liquid pump and the air compressor are arranged in the control cabinet, and the spray heads and the temperature and humidity instrument are arranged in an environment box. The utility model can simulate the corrosion and fatigue coupling action of the component in service.
Description
Technical Field
The utility model relates to the technical field of bridges, in particular to a device for simulating component corrosion and fatigue coupling.
Background
The bridge can be divided into a beam bridge, an arch bridge, a steel bridge, a cable bearing system bridge and the like according to a structural system, corresponding important stress components comprise beams, arch ribs, beam columns, suspenders and inhaul cables, the stress components support various bridges to normally serve, and the safety of the important stress components is related to the safety of the whole bridge. However, in the service period of the bridge, the stress member is easily corroded by environments such as along the river and the sea, wet fog and rain, chemical smoke and the like, and in the bridge structure used in a corrosive environment, the stress member is not only under the load action, but also under the environmental corrosion action and the load/environment interaction action, so that the stress member is corroded in different degrees, the fatigue life of the stress member is shortened, and the safety of the bridge is seriously threatened. Therefore, it is important to explore the corrosion degree and the residual service life of the stress components under the corrosion and fatigue coupling effects on the safety of the bridge. The prior chinese utility model patent application with publication number CN104931407A proposes a system for testing corrosion and fatigue combined action of marine equipment, but is mostly suitable for equipment in service in the ocean for a long time, and is not suitable for most bridges, and the fatigue load of the test is low, which cannot meet the actual requirements of bridges. Furthermore, the application of the chinese utility model with publication number CN112326473A proposes to determine the fatigue life of the corrosion-fatigue cooperative component by using an environment/load test spectrum, and the method is complex in calculation, has certain error and is not accurate enough. Therefore, it is necessary to provide a device for simulating the corrosion and fatigue coupling of a stressed bridge member to study the overall safety of the bridge.
SUMMERY OF THE UTILITY MODEL
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the device for simulating the corrosion and fatigue coupling effect of the component comprises a loading device, an environment box and a control device.
The loading device comprises a supporting frame, an actuator, a first force transmission rod, a second force transmission rod, a first clamp, a second clamp and a supporting device, wherein the actuator, the first force transmission rod, the second force transmission rod, the first clamp, the second clamp and the supporting device are arranged on the inner side of the supporting frame;
the environment box frame is arranged on the outer side of the component to be simulated, and one end of the first dowel bar, which is provided with the first clamp, and one end of the second dowel bar, which is provided with the second clamp, penetrate through the environment box;
the control device comprises a control cabinet, a master control module, an exhaust fan, a heater, a refrigerating unit, a liquid storage tank, a liquid pump, an air compressor, a plurality of spray heads and a humiture instrument, wherein the master control module is arranged in the control cabinet, the plurality of spray heads and the humiture instrument are arranged in an environment box, the master control module is respectively connected with the exhaust fan, the heater, the refrigerating unit, the liquid pump, the air compressor and the humiture instrument, the exhaust fan is communicated with the environment box through an air outlet pipeline, the heater is arranged in the air outlet pipeline or arranged at the air inlet end of the exhaust fan, the air outlet end of the refrigerating unit is also communicated with the environment box through the air outlet pipeline, the refrigerating unit and the heater are not operated simultaneously, the liquid inlet end of the liquid pump is connected with the liquid storage tank, the liquid outlet end of the liquid pump is communicated with one end of the liquid pipeline, the other end of the liquid pipeline penetrates through the control cabinet and extends into the environment box and is communicated with a nozzle pipeline arranged in the environment box, a plurality of spray heads are installed on the nozzle pipeline at intervals, one end of a high-pressure air pipe is connected to the outlet end of the air compressor, and the other end of the high-pressure air pipe penetrates through the control cabinet and extends into the environment box and is communicated with the nozzle pipeline.
Preferably, a connecting hole is formed in the environment box, the first force transmission rod extends into the environment box through the connecting hole, and the connecting hole and the first force transmission rod are sealed through asbestos.
Preferably, one side box wall that the environment case supplies the second dowel steel to wear to establish is formed by a plurality of bottom plates concatenation, the bottom plate can be dismantled with the environment case and be connected, set up the bottom hole that supplies the second dowel steel to wear to establish on the bottom plate.
Preferably, a water outlet is formed in the bottom of the environment box, a water receiving tank is arranged outside the environment box, and the water receiving tank is arranged right below the water outlet.
Preferably, a box door is arranged on a side surface of the environment box, and the side surface is not a side surface through which the first force transmission rod and the second force transmission rod penetrate.
Preferably, the liquid storage tank comprises a water tank, an acid-base solution tank and a chloride ion solution tank, the water tank, the acid-base solution tank and the chloride ion solution tank are communicated with a liquid inlet pipe through branch pipes, the liquid inlet pipe is communicated with a liquid pump, each branch pipe is provided with an electric valve, and the electric valves are connected with a master control module.
Preferably, install control panel on the switch board, set up the distribution control cabinet in it, control panel and distribution control cabinet all are connected with total accuse module, control panel includes the display screen, sets up button, operation pilot lamp, trouble pilot lamp and bee calling organ.
Preferably, the heater is a nichrome heating wire type heater.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model discloses a device for simulating corrosion and fatigue coupling of a component, which can realize the corrosion and fatigue coupling of a bridge stressed component in service, is closer to the real corrosion environment and fatigue load of the bridge in service period compared with the prior art, and is convenient for analyzing the corrosion degree and the residual service life of the bridge stressed component along with the service time increase in the later period more accurately.
2. According to the utility model, a corrosive environment is created for the environment box through the control device, and the control device and the environment box are separately arranged, namely the control device is not placed in the environment box, so that the corrosive environment in the environment box can be controlled and adjusted at a distance during a test, the maintenance of the control device is facilitated, meanwhile, the corrosion of each device of the control device can be reduced, the control device can be used for a long time, the control device can be normally used even if the environment box has a problem, at the moment, the control device can be connected with the control device for continuous testing only by manufacturing the environment box again, and the cost is greatly saved.
3. The bottom of the environment box is of a splicing type, and the environment box can be disassembled and assembled at will, so that the bottom plate can be spliced at will according to different test objects, and tests of various types of components can be performed, for example, tests of vertical types such as a stay cable and tests of horizontal types such as a beam.
4. The utility model is additionally provided with the refrigerating unit, can simulate the corrosion of a test piece at low temperature and better accords with the service characteristics of an outdoor bridge.
5. The loading device, the environment box and the control cabinet can be suitable for simulating corrosion and fatigue coupling effects of various test pieces, are convenient to operate and have high popularization value.
Drawings
Fig. 1 is a schematic structural diagram of a device designed according to the present invention, in which the members are rod-like structures.
Fig. 2 is a schematic structural diagram of the environmental chamber, in which the members are rod-shaped structures.
Fig. 3 is a schematic structural view of the environmental chamber, in which the members are beam-like structures.
Description of the main elements
In the figure: the device comprises a support frame 1, an actuator 2, a first transmission rod 3, a first clamp 4, a support device 5, a second transmission rod 6, a second clamp 7, a component 8, an environment box 9, a connecting hole 10, a bottom plate 11, a water outlet 12, a box door 13, a water receiving tank 14, a control cabinet 15, an exhaust fan 16, a heater 17, a refrigerating unit 18, a liquid storage tank 19, an air compressor 20, a spray head 21, a control panel 22, a power distribution control cabinet 23 and a liquid pump 24.
The following detailed description will further illustrate the utility model in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1 to 3, in a preferred embodiment of the present invention, an apparatus for simulating corrosion and fatigue coupling of components includes a loading device, an environmental chamber 9 and a control device.
The loading device comprises a supporting frame 1, an actuator 2, a first force transmission rod 3, a second force transmission rod 6, a first clamp 4, a second clamp 7 and a supporting device 5, wherein the actuator 2, the first force transmission rod 3, the second force transmission rod 6, the first clamp 4, the second clamp 7 and the supporting device 5 are arranged on the inner side of the supporting frame 1, one end of the actuator 2 is arranged on the supporting frame 1, the other end of the actuator is connected with one end of the first force transmission rod 3, the other end of the first force transmission rod 3 is provided with the first clamp 4, the first clamp 4 is used for clamping one end of a component 8 to be simulated, one end of the supporting device 5 is arranged on the supporting frame 1, the other end of the supporting device is connected with one end of the second force transmission rod 6, the other end of the second force transmission rod 6 is provided with the second clamp 7, and the second clamp 7 is used for clamping the other end of the component 8 to be simulated; the loading device is used for clamping and exerting action on the component 8 to be simulated, so that fatigue load simulation is realized.
The environment box 9 is framed outside the component 8 to be simulated, and one end of the first dowel bar 3, which is provided with the first clamp 4, and one end of the second dowel bar 6, which is provided with the second clamp 7, are both arranged inside the environment box 9 in a penetrating manner; so that the member to be simulated 8 is in a closed simulated environment through the environment box 9, and the subsequent corrosion environment simulation is facilitated. In the embodiment, the environment box 9 is provided with a connecting hole 10, the first force transmission rod 3 extends into the environment box 9 through the connecting hole 10, and the connecting hole 10 and the first force transmission rod 3 are sealed by asbestos, so that the environment box 9 is ensured to have a good sealing effect; the box wall on one side of the environment box 9, through which the second dowel bar 6 penetrates, is formed by splicing a plurality of bottom plates 11, the bottom plates 11 are detachably connected with the environment box 9, bottom holes through which the second dowel bar 6 penetrates are formed in the bottom plates 11, and the side, where the bottom plates 11 are located, can be arbitrarily assembled by utilizing the detachable splicing mode of the bottom plates 11, so that corresponding changes can be made according to the structure of the member 8 to be simulated, and the environment box 9 can be applied to simulation tests of various members 8, for example, referring to fig. 2, when a suspender or inhaul cable test is performed, a hole is formed in the center of the bottom plate 11, which corresponds to the second dowel bar 6, and a beam test is performed, and a left hole and a right hole are formed for placing a support of a beam, as shown in fig. 3, so that one box can be truly multi-purpose and a test of various stressed members 8 can be performed; a water outlet 12 is formed in the bottom of the environment box 9, a water receiving tank 14 is arranged outside the environment box 9, and the water receiving tank 14 is arranged right below the water outlet 12 so as to discharge accumulated water generated in the environment box 9 and collect the accumulated water in a centralized manner; the chamber door 13 has been seted up to the side of environment case 9, and this side does not do the side that first dowel steel 3 and second dowel steel 6 wore to set up through chamber door 13 and be convenient for the component 8 and put into environment case 9, the artifical environment case 9 that gets into of being convenient for simultaneously carries out the concatenation equipment of environment case 9 bottom plate 11. It should be noted that the material for manufacturing the environmental chamber 9 should be acid-base resistant, high temperature resistant, and corrosion resistant, so as to ensure that the environmental chamber 9 is not corroded in the simulated corrosion environment.
The control device is used for controlling corrosion environment conditions such as temperature, humidity, pH value and chloride ion concentration of environment corrosion to be simulated in the environment box 9, and comprises a control cabinet 15, a master control module, an exhaust fan 16, a heater 17, a refrigerating unit 18, a liquid storage box 19, a liquid pump 24 and an air compressor 20 which are arranged in the control cabinet 15, and a plurality of spray heads 21 and an intelligent temperature and humidity recorder which are arranged in the environment box 9, wherein the master control module is respectively connected with the exhaust fan 16, the heater 17, the refrigerating unit 18, the liquid pump 24, the air compressor 20 and the intelligent temperature and humidity recorder and is used for carrying out master control on the device. Air exhauster 16 is through air-out pipeline intercommunication environment case 9, heater 17 is installed in the air-out pipeline or is installed at air exhauster 16's air inlet end, through heater 17 heated air to blow in environment case 9 with the air that heats through the air-out pipeline, and then improve the inside temperature of environment case 9, but this mode simulation high temperature environment, preferably, heater 17 is nichrome heating wire formula heater 17. The air outlet end of the refrigerating unit 18 is also communicated with the environment box 9 through an air outlet pipeline, the refrigerating unit 18 and the heater 17 do not operate simultaneously, and the low-temperature environment in the environment box 9 is simulated through the refrigerating unit 18. The liquid inlet end of the liquid pump 24 is connected with the liquid storage tank 19, the liquid outlet end of the liquid pump 24 is communicated with one end of a liquid pipeline, the other end of the liquid pipeline penetrates through the control cabinet 15 and extends into the environment box 9, and is communicated with a nozzle pipeline installed in the environment box 9, a plurality of spray heads 21 are installed on the nozzle pipeline at intervals, the outlet end of the air compressor 20 is connected with one end of a high-pressure air pipe, the other end of the high-pressure air pipe penetrates through the control cabinet 15 and extends into the environment box 9 and is communicated with the nozzle pipeline, high-pressure air coming out of the air compressor 20 enters the nozzle pipeline through the high-pressure air pipe, and the high-pressure air changes the liquid entering the nozzle pipeline from the liquid pipeline into liquid mist in the nozzle pipeline, so that the humidity, the pH value and the chloride ion concentration in the environment box 9 are adjusted, and preferably, the liquid storage tank 19 comprises a water tank, The acid-base solution tank and the chloride ion solution tank are communicated with the liquid inlet pipe through branch pipes, the liquid inlet pipe is communicated with the liquid pump 24, an electric valve is installed on each branch pipe, the electric valves are connected with the master control module to drive the corresponding electric valves to be opened according to control requirements, so that the liquid pump 24 can pump corresponding liquid to atomize, namely, before an experiment, the acid-base solution and the chloride ion solution are prepared in advance and are respectively placed in corresponding boxes.
Preferably, install control panel 22 on the switch board 15, set up distribution control cabinet 23 in it, control panel 22 and distribution control cabinet 23 all are connected with total accuse module, control panel 22 includes the display screen, sets up button, operation pilot lamp, fault indicator and bee calling organ for data control and collection and guarantee operational safety nature, distribution control cabinet 23 includes distribution board, main power supply leakage circuit breaker etc. for supply power and guarantee power consumption safety for controlling means.
Further, based on the device, the utility model also provides a method for simulating the corrosion and fatigue coupling effect of the component, which specifically comprises the following steps:
s1: install actuator 2 in the top, strutting arrangement 5 installs in the below, environment box 9 is located actuator 2's below, wherein, first power transmission rod 3 stretches into environment box 9 through environment box 9 upper portion, then, put into environment box 9 with component 8, the upper end of component 8 is by the centre gripping of first anchor clamps 4, first anchor clamps 4 connect actuator 2 through first power transmission rod 3, the lower extreme of component 8 passes through second power transmission rod 6 and connects strutting arrangement 5, actuator 2 is used in on component 8 through first power transmission rod 3, then, fixed component 8 verifies component 8 stability, after confirming component 8 stability, artifical entering environment box 9 carries out the concatenation of environment box 9 hypoplastron, guarantee environment box 9 leakproofness.
S2: the installation control device is specifically installed according to the above description.
S3: the control device is used for adjusting the temperature and humidity, the pH value and the chloride ion concentration in the environment box 9, simulating the corrosion environment of the component 8 in service, meanwhile, applying regular fatigue load to the component 8 by using the loading device, realizing the corrosion and fatigue coupling effects of the simulated component 8 in service, and more accurately analyzing the corrosion degree and the residual service life of the bridge stress component 8 along with the increase of service time.
In step S3, the temperature and humidity in the environmental chamber 9 are monitored by the temperature and humidity meter, the collected data are transmitted to the master control module, the master control module carries out comparative analysis according to the temperature and humidity value and a pre-set test temperature and humidity value, and controls the operations of the exhaust fan 16, the heater 17, the refrigeration unit 18, the liquid pump 24 and the air compressor 20 according to the comparative analysis, if the temperature in the environment box 9 is lower than the preset value, the exhaust fan 16 and the heater 17 are controlled to operate to blow hot air into the environment box 9, if the temperature in the environment box 9 is higher than the preset value, the operation of the refrigerating unit 18 is controlled, cold air produced by the refrigerating unit 18 is blown into the environment box 9, if the humidity in the environment box 9 is lower than a preset value, the liquid pump 24 and the air compressor 20 are controlled to operate, and the high-pressure gas generated by the air compressor 20 atomizes the liquid pumped by the liquid pump 24 into the nozzle pipe and sprays the liquid into the environmental tank 9 through the spray head 21.
It should be noted that, in the present invention, the humiture instrument employs an L92-1 intelligent humiture recorder, which cooperates with a humiture control display screen to facilitate an operator to observe the humiture in the environment box 9 in real time and adjust the humiture as required, and according to the humiture value in the environment box 9 collected by the humiture instrument, the increase value of the humidity in the environment box 9 along with the spraying of the solution is obtained, and the concentration values of the configured acid-base solution and chloride ion solution are obtained, so as to determine the ph value and chloride ion concentration in the environment box 9, and then according to the preset ph value and chloride ion concentration, the operation of the liquid pump 24 is adjusted, so that the solution in the corresponding box is pumped and sprayed until the ph value and chloride ion concentration reach preset values, so as to complete the adjustment of the corrosion environment in the environment box 9.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (8)
1. The device for simulating the corrosion and fatigue coupling action of the component comprises a loading device, an environment box and a control device, and is characterized in that:
the loading device comprises a supporting frame, an actuator, a first force transmission rod, a second force transmission rod, a first clamp, a second clamp and a supporting device, wherein the actuator, the first force transmission rod, the second force transmission rod, the first clamp, the second clamp and the supporting device are arranged on the inner side of the supporting frame;
the environment box frame is arranged on the outer side of the component to be simulated, and one end of the first dowel bar, which is provided with the first clamp, and one end of the second dowel bar, which is provided with the second clamp, penetrate through the environment box;
the control device comprises a control cabinet, a master control module, an exhaust fan, a heater, a refrigerating unit, a liquid storage tank, a liquid pump, an air compressor, a plurality of spray heads and an intelligent temperature and humidity recorder, wherein the master control module is arranged in the control cabinet and is respectively connected with the exhaust fan, the heater, the refrigerating unit, the liquid pump, the air compressor and the intelligent temperature and humidity recorder, the exhaust fan is communicated with the environment tank through an air outlet pipeline, the heater is arranged in the air outlet pipeline or is arranged at the air inlet end of the exhaust fan, the air outlet end of the refrigerating unit is also communicated with the environment tank through the air outlet pipeline, the refrigerating unit and the heater do not run simultaneously, the liquid inlet end of the liquid pump is connected with the liquid storage tank, the liquid outlet end of the liquid pump is communicated with one end of the liquid pipeline, the other end of the liquid pipeline penetrates through the control cabinet and extends into the environment tank and is communicated with a nozzle pipeline arranged in the environment tank, a plurality of spray heads are installed on the nozzle pipeline at intervals, one end of a high-pressure air pipe is connected to the outlet end of the air compressor, and the other end of the high-pressure air pipe penetrates through the control cabinet and extends into the environment box and is communicated with the nozzle pipeline.
2. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: the environment box is provided with a connecting hole, the first force transmission rod extends into the environment box through the connecting hole, and the connecting hole and the first force transmission rod are sealed through asbestos.
3. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: one side tank wall that the environment case supplied the second dowel steel to wear to establish is formed by a plurality of bottom plates concatenation, the bottom plate can be dismantled with the environment case and be connected, set up the bottom hole that supplies the second dowel steel to wear to establish on the bottom plate.
4. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: the environment box is characterized in that a water outlet is formed in the box bottom of the environment box, a water receiving groove is formed in the outer portion of the environment box, and the water receiving groove is formed right below the water outlet.
5. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: and a box door is arranged on the side surface of the environment box, and the side surface is not the side surface through which the first dowel bar and the second dowel bar penetrate.
6. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: the liquid storage tank comprises a water tank, an acid-base solution tank and a chloride ion solution tank, wherein the water tank, the acid-base solution tank and the chloride ion solution tank are communicated with a liquid inlet pipe through branch pipes, the liquid inlet pipe is communicated with a liquid pump, an electric valve is mounted on each branch pipe, and the electric valves are connected with a master control module.
7. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: the control cabinet is provided with a control panel, a power distribution control cabinet is arranged in the control panel, the control panel and the power distribution control cabinet are both connected with a master control module, and the control panel comprises a display screen, a setting button, an operation indicator lamp, a fault indicator lamp and a buzzer.
8. An apparatus for simulating the effects of corrosion and fatigue coupling of a component as defined in claim 1, wherein: the heater is a nichrome heating wire type heater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121903801 | 2021-08-10 | ||
| CN2021219038010 | 2021-08-10 |
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| CN216247650U true CN216247650U (en) | 2022-04-08 |
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| CN202122821494.8U Active CN216247650U (en) | 2021-08-10 | 2021-11-17 | Device for simulating corrosion and fatigue coupling of component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588534A (en) * | 2021-08-10 | 2021-11-02 | 广西交科集团有限公司 | Device and method for simulating component corrosion and fatigue coupling effect |
| CN115791590A (en) * | 2023-02-06 | 2023-03-14 | 山东科技职业学院 | Corrosion-resistant testing arrangement of bridge drainage irrigation canals and ditches |
-
2021
- 2021-11-17 CN CN202122821494.8U patent/CN216247650U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588534A (en) * | 2021-08-10 | 2021-11-02 | 广西交科集团有限公司 | Device and method for simulating component corrosion and fatigue coupling effect |
| CN115791590A (en) * | 2023-02-06 | 2023-03-14 | 山东科技职业学院 | Corrosion-resistant testing arrangement of bridge drainage irrigation canals and ditches |
| CN115791590B (en) * | 2023-02-06 | 2023-04-11 | 山东科技职业学院 | Corrosion-resistant testing arrangement of bridge drainage irrigation canals and ditches |
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