Accelerated corrosion test device for simulating marine environment

Abstract

The utility model relates to the technical field of marine environment accelerated corrosion test devices, and discloses a marine environment simulated accelerated corrosion test device which comprises a seawater simulation cabin with an upward opening, and a seawater solution used for simulating corrosion is arranged in the seawater simulation cabin. A fresh water tank is further fixedly arranged outside the seawater simulation cabin, an air pump for controlling the air pressure in the fresh water tank is fixedly arranged on the fresh water tank, and the fresh water tank is communicated with the seawater simulation cabin through a water pipe. The mass ratio of fresh water mixed into the seawater simulation cabin can be adjusted by controlling the air pump, the seawater concentration is further changed, corrosion speed data under different concentrations are further simulated, in addition, the seawater scouring effect can be simulated under the action of the flow simulation barrel fan, and after the salt concentration is adjusted, the flow simulation barrel fan can simulate the corrosion speed data under different concentrations. Under the stirring action of the flow simulation barrel fan, the salt concentration of a solution in the seawater simulation cabin can be rapidly enabled to tend to be consistent, so that the seawater simulation cabin is more reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of marine environment accelerated corrosion test devices, in particular to a simulated marine environment accelerated corrosion test device. Background Technique

[0002] Marine energy is one of the inexhaustible clean energies. The development and utilization of marine energy is the direction that many countries strive to develop. The utilization of marine energy power generation is similar to the development process of other clean energies, from small power to large power, and finally reaching the development process of grid-connected operation with the large power grid. The real sign of achieving the utilization of marine energy is to build a marine energy power generation system that can reach the level of commercial power stations and is truly connected to the grid for operation.

[0003] The anti-corrosion of the marine environment has always been a concern. Corrosion not only causes great waste of resources and energy in our country, but also the corrosion of some steel, cement, and concrete materials further leads to sudden incidents in corresponding docks, ships, bridges, and power generation systems, posing a great threat to people's life safety. Developing and exploring new methods and technologies for marine environment corrosion control, and studying the corrosion behavior mechanisms and laws of marine materials are of great significance for ensuring the safety of marine facilities, developing a conservation-oriented economy, and promoting the sustainable development of society.

[0004] At present, the corrosion tests of marine materials are mainly real-sea tests carried out at marine environment corrosion test stations near the coastline. However, the hanging and sampling tests of real-sea tests consume a large amount of manpower, material resources, and financial resources, and have the disadvantages of long test cycles, large discreteness of experimental data, inconvenient real-time observation, and quantitative testing. If, during the test process, adverse natural conditions such as strong winds, heavy rains, and the pounding of sea waves are encountered, it is very easy to lose the specimens, resulting in incomplete data.

[0005] The existing simulation devices are difficult to adjust the salt concentration of seawater quickly and without wasting water, and cannot improve the test efficiency. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a simulated marine environment accelerated corrosion test device is provided, which solves the above problems.

[0007] The utility model solves its technical problems by adopting the following technical solutions:

[0008] An accelerated corrosion test device for simulating marine environment, comprising an upwardly open seawater simulation chamber, wherein a seawater solution for simulating corrosion is provided in the seawater simulation chamber, and a fresh water tank is fixedly provided outside the seawater simulation chamber. A air pump for controlling the air pressure in the fresh water tank is fixedly provided on the fresh water tank, and the fresh water tank and the seawater simulation chamber are communicated through a water pipe.

[0009] Preferably, a top frame is fixedly provided on the upper end face of the seawater simulation chamber, and a salinity adjustment filter cartridge is fixedly provided on the top frame. A seawater ultrafiltration membrane is sleeved outside the salinity adjustment filter cartridge, and the water pipe passes through the salinity adjustment filter cartridge and extends into the seawater ultrafiltration membrane. When the pressure in the fresh water tank decreases, the water pipe absorbs water. Under the action of pressure, salts are blocked outside the seawater ultrafiltration membrane, while fresh water is sucked into the fresh water tank to increase the salt concentration in the seawater simulation chamber. On the contrary, after pressurizing the fresh water tank, fresh water is added into the seawater simulation chamber to reduce the salt concentration inside it.

[0010] Preferably, a salinity meter is provided in the seawater simulation chamber for real-time monitoring of the concentration in the seawater simulation chamber.

[0011] Preferably, a flow simulation cylinder fan is rotatably provided in the middle of the top frame. After the flow simulation cylinder fan rotates, the liquid in the seawater simulation chamber flows, simulating the scouring effect of seawater flow on parts, making the simulation effect more in line with reality.

[0012] Preferably, a first driving motor for driving the rotation of the flow simulation cylinder fan is fixedly provided on the top frame.

[0013] Preferably, a drain valve communicating with the inside of the seawater simulation chamber is fixedly provided on the lower end face of the seawater simulation chamber for draining water to facilitate timely replacement of the simulated corrosion medium.

[0014] The advantages and positive effects of the present utility model are: the mass ratio of fresh water incorporated into the seawater simulation chamber can be adjusted by controlling the air pump, thereby changing the seawater concentration, and further simulating the corrosion rate data at different concentrations. In addition, under the action of the flow simulation cylinder fan, the effect of seawater scouring can be simulated, and when the salt concentration is adjusted, the solution salt concentration in the seawater simulation chamber can quickly tend to be consistent under the stirring action of the flow simulation cylinder fan, which is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2It is a schematic structural diagram of the present utility model. Detailed implementation manners

[0018] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0019] The following further details the embodiments of the present utility model with reference to the accompanying drawings:

[0020] As Figure 1-2 shown, an accelerated corrosion test device for simulating marine environment of the present utility model includes a seawater simulation chamber 12 with an upward opening. A seawater solution for simulating corrosion is provided in the seawater simulation chamber 12. A fresh water tank 15 is fixedly provided outside the seawater simulation chamber 12. An air pump 18 for controlling the air pressure in the fresh water tank 15 is fixedly provided on the fresh water tank 15. The fresh water tank 15 and the seawater simulation chamber 12 are communicated through a water pipe 16.

[0021] Preferably, a top frame 11 is fixedly provided on the upper end face of the seawater simulation chamber 12. A salinity adjustment filter cartridge 19 is fixedly provided on the top frame 11. A seawater ultrafiltration membrane 17 is sleeved outside the salinity adjustment filter cartridge 19. The water pipe 16 passes through the salinity adjustment filter cartridge 19 and extends into the seawater ultrafiltration membrane 17. When the pressure in the fresh water tank 15 decreases, the water pipe 16 absorbs water. Under the action of pressure, salts are blocked outside the seawater ultrafiltration membrane 17, while fresh water is sucked into the fresh water tank 15 to increase the salt concentration in the seawater simulation chamber 12. On the contrary, after pressurizing the fresh water tank 15, fresh water is added into the seawater simulation chamber 12 to reduce the salt concentration inside it.

[0022] Preferably, a salinity meter is provided in the seawater simulation chamber 12 for real-time monitoring of the concentration in the seawater simulation chamber 12.

[0023] Preferably, a flow simulation cylinder fan 13 is rotatably provided in the middle of the top frame 11. After the flow simulation cylinder fan 13 rotates, the liquid in the seawater simulation chamber 12 flows, simulating the scouring effect of seawater flow on parts, making the simulation effect more in line with the actual situation.

[0024] Preferably, a first driving motor 10 for driving the rotation of the flow simulation cylinder fan 13 is fixedly provided on the top frame 11.

[0025] Preferably, a drain valve 14 communicating with the inside of the seawater simulation chamber 12 is fixedly provided on the lower end face of the seawater simulation chamber 12 for draining water to facilitate timely replacement of the simulated corrosion medium.

[0026] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific embodiments. Any other embodiments derived by those skilled in the art based on the technical solution of the present utility model also fall within the scope of protection of the present utility model.

Claims

1. A simulated marine environment accelerated corrosion test device, characterized in that: The invention comprises a seawater simulation chamber (12) which is open upwards, wherein a seawater solution for simulating corrosion is provided in the seawater simulation chamber (12), a freshwater tank (15) is fixedly provided outside the seawater simulation chamber (12), an air pump (18) for controlling the air pressure in the freshwater tank (15) is fixedly provided on the freshwater tank (15), and the freshwater tank (15) and the seawater simulation chamber (12) are connected via a water pipe (16); A top frame (11) is fixedly provided on the end surface, a salinity regulating filter cartridge (19) is fixedly provided on the top frame (11), a seawater ultrafiltration membrane (17) is sleeved on the outside of the salinity regulating filter cartridge (19), the water pipe (16) passes through the salinity regulating filter cartridge (19) and extends into the seawater ultrafiltration membrane (17), when the pressure in the fresh water tank (15) is reduced, the water pipe (16) absorbs water, and under the action of pressure, the salt is blocked outside the seawater ultrafiltration membrane (17), and Fresh water is sucked into the fresh water tank (15), so that the salt concentration in the seawater simulation cabin (12) increases. Conversely, after the fresh water tank (15) is pressurized, fresh water is added to the seawater simulation cabin (12) to reduce the salt concentration inside it. A salt concentration meter is provided in the seawater simulation cabin (12) for real-time monitoring of the concentration in the seawater simulation cabin (12). A flow simulation cylinder fan (13) is rotatably provided in the middle of the top frame (11). When the flow simulation cylinder fan (13) rotates, the liquid in the seawater simulation cabin (12) flows, simulating the flushing effect of the seawater flow on the parts, so that the simulation effect is more in line with reality. A first driving motor (10) for driving the flow simulation cylinder fan (13) to rotate is fixedly provided on the top frame (11); a drain valve (14) connected to the inside of the seawater simulation cabin (12) is fixedly provided on the lower end surface of the seawater simulation cabin (12) for draining water and replacing the simulated corrosive medium in time.

Images