Indoor test device for simulating corrosion of carbonate to concrete in dynamic water environment

Abstract

The utility model relates to the technical field of corrosion resistance simulation detection of concrete materials, and discloses an indoor test device for simulating corrosion of carbonate to concrete in a dynamic water environment, which comprises a container, a dynamic water circulation simulation system, a corrosive substance supply system, a gas supply system and a monitoring control system, the accommodating container is provided with a sealed inner cavity and is used for overhead supporting of a to-be-tested piece; the dynamic water circulation simulation system is respectively communicated with the upper part and the lower part of the containing container and is used for driving liquid in the containing container to circularly flow so as to simulate dynamic water circulation; the corrosive substance supply system is respectively communicated to the upper part and the lower part of the containing container and is used for supplying corrosive substances to the containing container to carry out a simulation test and discharging the corrosive substances after the test is finished; the gas supply system is communicated to an area where a corrosion substance at the bottom of the container is located, and is used for supplying gas and a pressure environment required by a test to the container; the monitoring control system is electrically connected with the dynamic water circulation simulation system and the gas supply system. And the controllability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion resistance simulation detection of concrete materials, in particular to an indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment. Background Art

[0002] Concrete has the advantages of easy availability, easy casting and molding, economy and high temperature resistance, making it the most widely used material in the world.

[0003] Concrete structures are widely used in various types of engineering construction. In long-term natural environments or use environments, concrete materials are corroded by corrosive media in the environment, gradually age, become damaged, or even destroyed. Many concrete structures are retired from service not because of insufficient strength but because of material degradation and reduced durability.

[0004] At present, the research on the corrosion resistance of concrete materials mostly uses the immersion method. The research mainly focuses on the corrosion changes of concrete materials under the action of chloride ions and sulfate ions, and less on the corrosion changes of concrete under the action of soluble carbonates. The corrosion process of tunnel lining concrete in groundwater environment, the simple immersion test cannot simulate the environment of flowing groundwater, resulting in certain limitations and narrowness of the test results. Utility Model Content

[0005] The utility model provides an indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment. By simulating a relatively real groundwater environment state, the corrosion resistance test result of tunnel lining concrete in a real use environment is detected, so as to solve the technical problem that the existing corrosion resistance performance test of concrete materials cannot simulate the corrosion process of tunnel lining concrete in a groundwater environment, resulting in the limitation and narrowness of the test results.

[0006] The utility model provides an indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment, comprising a containing container, a dynamic water circulation simulation system, a corrosive material supply system, a gas supply system and a monitoring and control system; the containing container has a sealed inner cavity and is used for overhead supporting a test piece; the dynamic water circulation simulation system is respectively connected to the upper part and the lower part of the containing container, and is used for driving the liquid in the containing container to circulate and thus simulate the dynamic water circulation; the corrosive material supply system is respectively connected to the upper part and the lower part of the containing container, and is used for supplying corrosive materials to the containing container for simulation tests, and discharging the corrosive materials after the tests are completed; the gas supply system is connected to the area where the corrosive materials are located at the bottom of the containing container, and is used for supplying the containing container with gas and pressure environment required for the tests; the monitoring and control system is respectively electrically connected to the dynamic water circulation simulation system and the gas supply system.

[0007] Furthermore, the dynamic water circulation simulation system includes an upper connecting port arranged to the upper part of the containing container, a lower connecting port arranged to be connected to the lower part of the containing container, a circulating water pipe respectively connecting the upper connecting port and the lower connecting port, and a circulating water pump arranged on the circulating water pipe for providing circulation power, and the circulating water pump is electrically connected to the monitoring and control system.

[0008] Furthermore, the corrosive material supply system includes a liquid inlet arranged at the upper part of the containing container, a liquid inlet valve arranged on the liquid inlet, a liquid outlet arranged at the bottom of the containing container, a liquid outlet valve arranged on the liquid outlet, a corrosive material storage tank connected to the liquid inlet, and a corrosive material recovery tank connected to the liquid outlet.

[0009] Furthermore, the gas supply system includes a gas storage tank, a first gas valve arranged at the output end of the gas storage tank, an air duct connected to the output end of the first gas valve, and a second gas valve arranged on the air duct, the air duct enters from the containing container into the sealed inner cavity of the containing container and extends to the bottom of the sealed inner cavity of the containing container; the first gas valve and / or the second gas valve are electrically connected to the monitoring and control system.

[0010] Furthermore, a support frame is arranged in the sealed inner cavity of the containing container, the support frame includes a plurality of vertical frames arranged at intervals, a containing bracket is fixed between the vertical frames, the plurality of containing brackets are arranged in layers at intervals in the vertical direction, and the containing brackets are used to contain the test pieces.

[0011] Furthermore, a pressure sensor is arranged above the sealed inner cavity for containing the container, and the pressure sensor is electrically connected to the monitoring and control system.

[0012] Furthermore, a liquid level sensor is arranged in the sealed inner cavity of the container, and the liquid level sensor is electrically connected to the monitoring and control system; or a float valve is used as the liquid inlet valve of the corrosive material supply system.

[0013] Furthermore, the containing container comprises an upper opening container body and a sealing cover sealingly covering the upper opening of the upper opening container body.

[0014] Furthermore, the indoor test device also includes a cleaning system, which includes a clean water inlet arranged on the upper part of the containing container, a water inlet valve arranged on the clean water inlet, a water outlet arranged at the bottom of the containing container, a water outlet valve arranged on the water outlet, a clean water storage tank connected to the clean water inlet, and a waste water recovery tank connected to the water outlet.

[0015] Furthermore, a heating mechanism is arranged on the upper part of the inner cavity of the containing container or on the outer surface of the containing container.

[0016] The utility model has the following beneficial effects:

[0017] The utility model is an indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment. A sealed inner cavity is provided by a containing container and a test piece is carried. The containing container is respectively connected with a dynamic water circulation simulation system, a corrosive material supply system and a gas supply system. A quantitative amount of corrosive material is provided to the sealed inner cavity of the containing container by the corrosive material supply system to match the groundwater environment. A dynamic water circulation environment is formed in the sealed inner cavity of the containing container by the dynamic water circulation simulation system, so that the flow rate and flow rate in the groundwater environment can be simulated more realistically. The gas supply system provides a gas environment matching the groundwater environment, and real-time monitoring and control of parameter environments such as flow rate, flow rate, air pressure, etc. are performed by a monitoring and control system, thereby ensuring that the corrosion process of tunnel lining concrete in the groundwater environment is simulated more realistically, and a more accurate test result is obtained.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 The utility model is a schematic structural diagram of an indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment according to a preferred embodiment of the utility model.

[0021] Legend:

[0022] 100, containing container; 101, supporting frame; 102, containing bracket; 103, pressure sensor; 104, upper opening container body; 105, sealing cover; 200, dynamic water circulation simulation system; 201, upper connecting port; 202, lower connecting port; 203, circulating water pipe; 204, circulating water pump; 300, corrosive material supply system; 301, liquid inlet; 302, liquid inlet valve; 303, liquid outlet; 304, liquid outlet valve; 400, gas supply system; 401, gas storage tank; 402, first gas valve; 403, gas guide pipe; 404, second gas valve; 500, monitoring and control system; 600, part to be tested. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0024] Figure 1The utility model is a schematic structural diagram of an indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment according to a preferred embodiment of the utility model.

[0025] like Figure 1 As shown, the indoor test device for simulating carbonate corrosion of concrete in a dynamic water environment of this embodiment includes a container 100, a dynamic water circulation simulation system 200, a corrosive material supply system 300, a gas supply system 400 and a monitoring and control system 500; the container 100 has a sealed inner cavity and is used to overhead support the test piece 600; the dynamic water circulation simulation system 200 is respectively connected to the upper and lower parts of the container 100, and is used to drive the liquid in the container 100 to circulate and simulate the dynamic water circulation; the corrosive material supply system 300 is respectively connected to the upper and lower parts of the container 100, and is used to supply corrosive materials to the container 100 for simulation testing, and discharge the corrosive materials after the test is completed; the gas supply system 400 is connected to the area where the corrosive materials are located at the bottom of the container 100, and is used to supply the container 100 with gas and pressure environment required for the test; the monitoring and control system 500 is respectively electrically connected to the dynamic water circulation simulation system 200 and the gas supply system 400. The utility model is an indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment. The container 100 provides a sealed inner cavity and carries a test piece 600. The container 100 is respectively connected to a dynamic water circulation simulation system 200, a corrosive material supply system 300, and a gas supply system 400. The corrosive material supply system 300 provides a quantitative amount of corrosive material to the sealed inner cavity of the container 100 to match the groundwater environment. The dynamic water circulation simulation system 200 forms a dynamic water circulation environment in the sealed inner cavity of the container 100, which can more realistically simulate the flow rate and flow rate in the groundwater environment. The gas supply system 400 provides a gas environment and pressure environment that match the groundwater environment, and the monitoring and control system 500 monitors and controls the parameter environment such as flow rate, flow rate, and air pressure in real time, thereby ensuring a more realistic simulation of the corrosion process of tunnel lining concrete in the groundwater environment and obtaining a more accurate test result. Optionally, the test piece 600 is a concrete test block. Optionally, the test piece 600 is a tunnel lining concrete test block.

[0026] like Figure 1As shown, in this embodiment, the dynamic water circulation simulation system 200 includes an upper connection port 201 arranged on the upper part of the container 100, a lower connection port 202 arranged to be connected to the lower part of the container 100, a circulating water pipe 203 respectively connected to the upper connection port 201 and the lower connection port 202, and a circulating water pump 204 arranged on the circulating water pipe 203 for providing circulation power, and the circulating water pump 204 is electrically connected to the monitoring and control system 500. The circulating water pump 204 is monitored and controlled by the monitoring and control system 500 to match the groundwater environment. Optionally, a guide slope for uniformly and slowly introducing liquid into the sealed inner cavity of the container 100 is arranged below the upper connection port 201. Optionally, a plurality of upper connection ports 201 are provided, and the plurality of upper connection ports 201 are arranged at intervals on one side of the container 100. Optionally, a plurality of lower connection ports 202 are provided, and the plurality of lower connection ports 202 are arranged at intervals on one side of the container 100. Optionally, the upper connection port 201 and the lower connection port 202 are located on the same side of the container 100, or on different sides of the container 100; according to the use environment of the test piece 600, the number or arrangement of the upper connection ports 201 and / or the lower connection ports 202 is selected, so that the indoor test device can simulate an environment that is more suitable for groundwater.

[0027] like Figure 1 As shown, in this embodiment, the corrosive material supply system 300 includes a liquid inlet 301 arranged at the upper part of the containing container 100, a liquid inlet valve 302 arranged on the liquid inlet 301, a liquid outlet 303 arranged at the bottom of the containing container 100, a liquid outlet valve 304 arranged on the liquid outlet 303, a corrosive material storage tank connected to the liquid inlet 301, and a corrosive material recovery tank connected to the liquid outlet 303. Optionally, the corrosive material supply system 300 may also only include a liquid inlet 301 arranged at the upper part of the holding container 100, a liquid inlet valve 302 arranged on the liquid inlet 301, a liquid outlet 303 arranged at the bottom of the holding container 100, and a liquid outlet valve 304 arranged on the liquid outlet 303; by injecting a certain amount of corrosive material into the liquid inlet 301, a corresponding test can be carried out; after the test is completed, the corrosive material is discharged by opening the liquid outlet valve 304; optionally, the liquid inlet 301 is set as a funnel-shaped opening.

[0028] like Figure 1As shown, in this embodiment, the gas supply system 400 includes a gas storage tank 401, a first gas valve 402 provided at the output end of the gas storage tank 401, an air pipe 403 connected to the output end of the first gas valve 402, and a second gas valve 404 arranged on the air pipe 403, the air pipe 403 enters from the container 100 into the sealed inner cavity of the container 100 and extends to the bottom of the sealed inner cavity of the container 100; the first gas valve 402 and / or the second gas valve 404 are electrically connected to the monitoring and control system 500. The first gas valve 402 and / or the second gas valve 404 are monitored and controlled in real time by the monitoring and control system 500, so that the gas entering the sealed inner cavity of the container 100 reaches a threshold value, thereby matching the groundwater environment. Optionally, the gas storage tank 401 is a CO2 gas cylinder; CO2 filling: open the first gas valve 402 to release the gas in the CO2 gas cylinder, the second gas valve 404 controls the flow rate and flow of the CO2 gas, and the gas guide tube 403 is connected to the bottom of the container 100 so that the CO2 gas can be filled from bottom to top. The pressure sensor 103 is electrically connected to the computer through a data line. Before the CO2 gas is introduced, the pressure sensor 103 is turned on to read the pressure value P0. After the test work is ready and the container is sealed, the CO2 gas is introduced and the pressure value change of the pressure sensor 103 is observed, and the data P1 is recorded. When P1=1.5~2.0P0, the CO2 gas is stopped.

[0029] like Figure 1 As shown, in this embodiment, a support frame 101 is arranged in the sealed inner cavity of the container 100, and the support frame 101 includes a plurality of stand frames arranged at intervals, and a holding bracket 102 is fixed between the stand frames, and the plurality of holding brackets 102 are arranged in layers at intervals in the vertical direction, and the holding bracket 102 is used to hold the test piece 600. By arranging the support frame 101 in the sealed inner cavity of the container 100, the support frame 101 is a hollow structure, and a spatial three-dimensional structure is formed by combining a plurality of stand frames and the holding bracket 102, and each test piece 600 is arranged on each holding bracket 102 at intervals, so that the surroundings of the test piece 600 are in contact with the corrosive substance as much as possible. Optionally, the support frame 101 adopts a commercially available, well-known and commonly used corrosion-resistant bracket.

[0030] like Figure 1 As shown, in this embodiment, a pressure sensor 103 is arranged above the sealed inner cavity of the container 100, and the pressure sensor 103 is electrically connected to the monitoring and control system 500. The monitoring and control system 500 includes a computer, the second gas valve 404 is electrically connected to the computer through a data line to monitor and control the flow rate and flow of CO2 gas, the circulating water pump 204 is electrically connected to the computer through a data line to control the switch of the circulating water pump 204 and the size of the corrosive circulation flow rate, and the pressure sensor 103 is electrically connected to the computer through a data line to monitor the size of the internal pressure of the container 100 during the test to prevent the internal pressure from being too high and damaging the device.

[0031] like Figure 1 As shown, in this embodiment, the sealed inner cavity of the container 100 is provided with a liquid level sensor, and the liquid level sensor is electrically connected to the monitoring and control system 500. Optionally, the liquid level sensor adopts an anti-corrosion package to avoid being corroded by the corrosive. Optionally, the liquid inlet valve 302 of the corrosive supply system 300 adopts a float valve. Open the liquid inlet valve 302, pour the prepared carbonate solution into the container 100 from the liquid inlet 301, submerge the test piece 600 (concrete test block), stop pouring the carbonate solution when the solution height reaches 3 / 4 of the container 100, and close the liquid inlet valve 302.

[0032] like Figure 1 As shown, in this embodiment, the container 100 includes an upper opening container body 104 and a sealing cover 105 sealingly covering the upper opening of the upper opening container body 104. The container 100 adopts a well-known and commonly used corrosion-resistant container, such as a glass container. The upper opening container body 104 in the form of an upper opening structure is sealed and connected with the sealing cover 105; it is convenient to take and place the test piece 600, and it is also convenient to clean the inside.

[0033] like Figure 1 As shown, in this embodiment, the indoor test device also includes a cleaning system, which includes a clean water inlet arranged at the upper part of the container 100, a water inlet valve arranged on the clean water inlet, a water outlet arranged at the bottom of the container 100, a water outlet valve arranged on the water outlet, a clean water storage tank connected to the clean water inlet, and a waste water recovery tank connected to the water outlet. When the test is completed, the entire indoor test device is cleaned by the cleaning system; specifically, the water inlet valve is opened to inject clean water, and after the injection is completed, the clean water is allowed to flow to a preset time through the dynamic water circulation simulation system 200, and then the waste water is discharged by opening the water outlet valve, and the indoor test device is cleaned by this reciprocating operation. Optionally, the clean water inlet of the cleaning system adopts the liquid inlet 301, and the water inlet valve of the cleaning system adopts the liquid inlet valve 302. It is only necessary to connect the water pipe for clean water to the liquid inlet 301, and open the liquid inlet valve 302 to achieve the entry of clean water; the water outlet of the cleaning system adopts the liquid outlet 303, and the water outlet valve of the cleaning system adopts the liquid outlet valve 304; when cleaning, clean water is passed in so that the clean water level is 1 to 2 cm away from the top cover of the container 100, and the liquid inlet valve 302 is closed to stop the water flow, and the circulating water pump 204 is turned on to use a large flow to clean the container 100. After cleaning the container 100, the liquid outlet valve 304 is opened to release the waste liquid from the liquid outlet 303 for recycling.

[0034] like Figure 1As shown, in this embodiment, a heating mechanism is also arranged on the upper part of the inner cavity of the container 100 or on the outer surface of the container 100. After the indoor test device is cleaned with clean water, the inner cavity of the container 100 is dried by the heating mechanism to keep the inner cavity of the container 100 dry, thereby facilitating subsequent tests.

[0035] During implementation, an indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment includes a container 100, a corrosive material supply system 300, a dynamic water circulation simulation system 200 and a monitoring and control system 500.

[0036] The containing container 100 comprises a corrosion-resistant glass immersion container (an upper open container body 104), a sealing cover 105, and a containing bracket 102 for containing concrete test blocks provided in the corrosion-resistant glass immersion container.

[0037] The corrosive material supply system 300 includes a liquid inlet 301 , a liquid inlet valve 302 , a liquid outlet 303 , a liquid outlet valve 304 , a CO 2 gas cylinder, a first gas valve 402 , a second gas valve 404 and a gas guide pipe 403 .

[0038] The dynamic water circulation simulation system 200 includes a circulating water pump 204 and a circulating water pipe 203, which are used to drive the circulating flow of the soaking solution formed by the mixture of the introduced CO2 gas and the prepared solution.

[0039] The monitoring and control system 500 includes a computer. The second gas valve 404 is electrically connected to the computer via a data line, and the flow rate and flow of the CO2 gas are monitored and controlled by the computer. The circulating water pump 204 is electrically connected to the computer via a data line, and the switch of the circulating water pump 204 and the size of the circulating flow rate of the soaking solution are controlled by the computer. The pressure sensor 103 is electrically connected to the computer via a data line, and the size of the internal pressure of the container 100 during the test is monitored by the computer.

[0040] The liquid inlet 301 is located at the top of the sealing cover 105 in an inverted funnel shape, and the connection with the sealing cover 105 is welded to ensure sealing. The liquid outlet 303 is located at the bottom of the soaking container (upper opening container body 104), and the connection adopts the same welding connection method as mentioned above. The liquid inlet valve 302 and the liquid outlet valve 304 are used to control the pouring of solution and the discharge of waste liquid. CO2 gas filling: Open the first gas valve 402 to release the gas in the CO2 gas cylinder, the second gas valve 404 controls the flow rate and flow of CO2 gas, and the air guide pipe 403 is connected to the bottom of the soaking container to allow CO2 gas to be filled from bottom to top.

[0041] The immersion container and its sealing cover 105 are made of corrosion-resistant glass structure, and the sealing cover 105 is provided with a rubber ring to ensure the sealing of the test device.

[0042] The liquid inlet 301, the liquid outlet 303, the air guide pipe 403, and the circulating water pipe 203 are all made of corrosion-resistant polytetrafluoroethylene structure.

[0043] The circulating water pump 204 is electrically connected to the computer via a data line, and the computer is used to control the switch of the circulating water pump 204 and the size of the circulating flow rate of the soaking solution, and display the circulating flow rate reading to facilitate control and adjustment thereof.

[0044] The pressure sensor 103 is electrically connected to the computer through a data line. Before introducing CO2 gas, the pressure sensor 103 is turned on to read the pressure value P0. After the test preparation is completed and the container 100 is sealed, CO2 gas is introduced and the pressure value change of the pressure sensor 103 is observed, and the data P1 is recorded. When P1=1.5~2.0P0, the introduction of CO2 gas is stopped.

[0045] The use of the utility model:

[0046] 1. Remove the sealing cover 105, clean and dry the immersion container (upper opening container body 104) and the sealing cover 105 with clean water, put them into the holding bracket 102, put the numbered concrete test block (test piece 600) into the holding bracket 102 in the immersion container, install the rubber sealing ring and cover the sealing cover 105.

[0047] 2. Open the liquid inlet valve 302 and pour the prepared carbonate solution into the immersion container from the liquid inlet 301 to submerge the concrete test block. When the solution height reaches 3 / 4 of the immersion container, stop pouring the solution and close the liquid inlet valve 302.

[0048] 3. Open the first gas valve 402 to release the gas in the CO2 cylinder, start the computer to control and monitor the filling of CO2 gas by opening the second gas valve 404, so that the CO2 gas is rushed into the soaking container from the gas guide tube 403 at a relatively uniform speed. Open the pressure sensor 103, which is electrically connected to the computer through a data line to monitor the pressure in the soaking container. When the internal pressure reaches a threshold, close the second gas valve 404 and the first gas valve 402 to stop filling the CO2 gas.

[0049] 4. While charging CO2 gas, start the circulating water pump 204, which is electrically connected to the computer through a data cable to display and monitor the solution circulation flow rate, so that the solution in the immersion container can flow so that the charged CO2 gas can be better dissolved in the carbonate solution to form a CO2-carbonate mixed immersion solution. After stopping charging CO2 gas, turn off the circulating water pump 204.

[0050] 5. Repeat steps 2, 3, 4, and 7 to renew the soaking solution every 5-7 days.

[0051] 6. After the immersion solution is prepared, the circulating water pump 204 is turned on and electrically connected to the computer through a data line to display and monitor the solution circulation flow rate, simulate the corrosion of carbonate on the concrete test block in the dynamic water environment, and observe and record the change process of the concrete test block.

[0052] 7. After the test is completed, close the circulating water pump 204 and all valves, open the liquid outlet valve 304 to release the soaking solution from the liquid outlet 303 and collect and process it centrally.

[0053] 8. After the test is completed and the soaking solution is drained, the sealing cover 105 is opened and the concrete test block is taken out for subsequent testing.

[0054] The beneficial effects of the indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment are as follows:

[0055] (1) Use glass immersion containers to facilitate observation and recording of the carbonate corrosion damage process of concrete in a dynamic water environment;

[0056] (2) It can effectively control the flow rate and flow rate of CO2 gas, and control the circulation flow rate to simulate the groundwater environment with different flow rates;

[0057] (3) The entire experimental device is simple, easy to operate, and has good process controllability, which can better simulate the corrosion of concrete by carbonates in a dynamic water environment.

[0058] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment, characterized in that: It comprises a containing container (100), a dynamic water circulation simulation system (200), a corrosive material supply system (300), a gas supply system (400) and a monitoring and control system (500); The containing container (100) has a sealed inner cavity and is used for overhead supporting the test piece; The dynamic water circulation simulation system (200) is respectively connected to the upper part and the lower part of the containing container (100), and is used to drive the liquid in the containing container (100) to circulate and thus simulate the dynamic water circulation; The corrosive material supply system (300) is respectively connected to the upper part and the lower part of the containing container (100), and is used to supply the corrosive material to the containing container (100) for performing the simulation test, and discharge the corrosive material after the test is completed; The gas supply system (400) is connected to the area where the corrosive substances are located at the bottom of the container (100) and is used to supply the container (100) with the gas and pressure environment required for the test; The monitoring and control system (500) is electrically connected to the dynamic water circulation simulation system (200) and the gas supply system (400) respectively.

2. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to claim 1, characterized in that: The dynamic water circulation simulation system (200) comprises an upper connection port (201) arranged at the upper part of a containing container (100), a lower connection port (202) arranged at the lower part of the containing container (100), a circulating water pipe (203) respectively connected to the upper connection port (201) and the lower connection port (202), and a circulating water pump (204) arranged on the circulating water pipe (203) for providing circulation power, wherein the circulating water pump (204) is electrically connected to a monitoring and control system (500).

3. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to claim 1, characterized in that: The corrosive material supply system (300) comprises a liquid inlet (301) arranged at the upper part of the containing container (100), a liquid inlet valve (302) arranged on the liquid inlet (301), a liquid outlet (303) arranged at the bottom of the containing container (100), a liquid outlet valve (304) arranged on the liquid outlet (303), a corrosive material storage tank connected to the liquid inlet (301), and a corrosive material recovery tank connected to the liquid outlet (303).

4. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to claim 1, characterized in that: The gas supply system (400) comprises a gas storage tank (401), a first gas valve (402) arranged at the output end of the gas storage tank (401), an air guide pipe (403) connected to the output end of the first gas valve (402), and a second gas valve (404) arranged on the air guide pipe (403), wherein the air guide pipe (403) enters from the containing container (100) into the sealed inner cavity of the containing container (100) and extends into the bottom of the sealed inner cavity of the containing container (100); The first gas valve (402) and / or the second gas valve (404) are electrically connected to the monitoring and control system (500).

5. The indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment according to any one of claims 1 to 4, characterized in that: A support frame (101) is arranged in the sealed inner cavity of the container (100). The support frame (101) comprises a plurality of stand frames arranged at intervals, and a holding bracket (102) is fixed between the stand frames. A plurality of holding brackets (102) are arranged in layers at intervals in the vertical direction, and the holding brackets (102) are used to hold the test pieces.

6. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to any one of claims 1 to 4, characterized in that: A pressure sensor (103) is arranged above the sealed inner cavity of the containing container (100), and the pressure sensor (103) is electrically connected to the monitoring and control system (500).

7. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to any one of claims 1 to 4, characterized in that: A liquid level sensor is arranged in the sealed inner cavity of the containing container (100), and the liquid level sensor is electrically connected to the monitoring and control system (500); or The liquid inlet valve (302) of the corrosive material supply system (300) is a float valve.

8. The indoor test device for simulating carbonate corrosion on concrete in a dynamic water environment according to any one of claims 1 to 4, characterized in that: The containing container (100) comprises an upper opening container body (104) and a sealing cover (105) sealingly covering the upper opening of the upper opening container body (104).

9. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to any one of claims 1 to 4, characterized in that: The indoor test device also includes a cleaning system. The cleaning system comprises a clean water inlet arranged at the top of the containing container (100), a water inlet valve arranged on the clean water inlet, a water outlet arranged at the bottom of the containing container (100), a water outlet valve arranged on the water outlet, a clean water storage tank connected to the clean water inlet, and a waste water recovery tank connected to the water outlet.

10. The indoor test device for simulating carbonate corrosion to concrete in a dynamic water environment according to claim 9, characterized in that: A heating mechanism is also arranged on the upper part of the inner cavity of the containing container (100) or on the outer surface of the containing container (100).

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