CN220508745U - Dry-wet alternate simulation experiment device capable of realizing multi-factor control - Google Patents

Abstract

The utility model discloses a dry-wet alternation simulation experiment device capable of realizing multi-factor control, which belongs to a corrosion experiment device for researching a dry-wet alternation environment, wherein a real experiment scene of an experiment can be simulated by controlling temperature, humidity and air pressure through a PLC, and a dry-wet alternation scene can be simulated by controlling lifting of a push rod through controlling delay so as to realize infiltration and drying, and the experiment requirements of a plurality of groups of parallel samples can be met. The utility model discloses controllable temperature, humidity, atmospheric pressure, the lift of control sample realize doing wet circulation in turn and research the corrosion behavior of different materials in the wet and dry environment in turn. The method can realize multiple sample carrying, can reduce the accident of experiments, improve the experiment efficiency and accuracy, and reduce the corrosion condition of the studied actual environment to a higher degree, thereby providing data and theoretical support for daily maintenance and repair of materials in the environment and evaluation of the corrosion resistance of the materials.

Description

Dry-wet alternate simulation experiment device capable of realizing multi-factor control

Technical Field

The utility model relates to the technical field of corrosion experiments in a dry-wet alternative environment, in particular to a dry-wet alternative simulation experiment device capable of realizing multi-factor control.

Background

The dry-wet alternate environment is a common practical corrosion environment, and literature research shows that the damage of the dry-wet alternate environment to equipment is far greater than that of the material under the condition of being soaked or dried, and the dry-wet alternate environment is widely applied to various fields such as automobiles, aerospace, ocean engineering and the like. In such environments, the surface of the material may repeatedly undergo dry and wet conditions, and such periodic changes may cause more severe corrosion to the material. The research on the corrosion behavior and the mechanism thereof under the dry-wet alternating environment has important significance for the corrosion resistance evaluation and corrosion control of the material. The field experiment cost and the requirement are high, so that most of the field experiment is an indoor simulation experiment, and a reliable, efficient and highly adjustable device is needed to fully simulate the field environment.

The prior art is as follows: CN202210990737.7, name: the technical literature of indoor marine corrosion test equipment, the device is that the pneumatic cylinder drives the horizontal movement module of medium plate lower part to reciprocate from top to bottom and realizes going up and down, the horizontal movement module drives pulley assembly and the lighting assembly of carousel lower part to reciprocate horizontally, the lighting assembly can realize shining the test sample with different sun incidence angles, rotary module can simulate the operating mode that the test sample was blown down at different angles and different temperature sea wind, and can accelerate the dry-wet circulation in atmosphere district, spray splash zone and tidal range district.

However, the prior art does not control the air pressure, meaning that in this device the air pressure cannot be accurately regulated or simulated. For those studies that require consideration of the impact of air pressure on corrosion experiments, such devices may not meet their specific requirements. The pressure change in corrosion experiments may have a significant impact on the experimental results. For example, in high altitude areas or under certain climatic conditions, changes in barometric pressure may result in changes in the corrosion process.

The existing device can not be used for exploring different dry-wet ratios in a dry-wet alternative environment, and in the dry-wet alternative environment, the different environments have a phenomenon of different dry-wet ratios, the corrosion rule research is needed to be researched for the different dry-wet ratios, and the device can not be used for exploring the different dry-wet ratios, so that the application range of the device is limited.

The existing device can only perform experiments on single samples at fixed positions at one time, and experimental deviation caused by environmental changes of a corrosion system cannot be eliminated by the single samples, so that the problem of poor reproducibility of experimental results exists when two corrosion systems are used for parallel experiments, and the experimental requirements are not met.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a dry-wet alternative simulation experiment device capable of realizing multi-factor control, can perform multiple groups of parallel experiments at one time, accurately control temperature, regulate pressure and control humidity to restore the studied environment, controls sample lifting according to the dry-wet alternative degree to realize infiltration and drying so as to regulate the dry-wet ratio, obtain corrosion data and typical corrosion parameters of corrosion, and solves the problems in the prior art.

The aim of the utility model is realized by the following technical scheme: a dry-wet alternate simulation experiment device capable of realizing multi-factor control comprises: the device comprises a sealed box body, a dehumidifier arranged at the upper part of the side wall of the box body, a salt fog generator arranged at the top of the box body, a PLC (programmable logic controller), a humidity control module, a temperature control module and an air pressure control module which are electrically connected with the PLC, a push rod motor, lifting rods symmetrically and vertically arranged at two sides in the sealed box body, and a plurality of sample bearing rods connected with the ends of the two lifting rods; a plurality of sample fixing ports are arranged on the multiple sample bearing rods at intervals, each sample fixing port is connected with one end of a sample connecting rod, and the other end of the sample connecting rod is connected with a test sample; and a solution tank is correspondingly arranged at the bottom part right below each sample fixing port.

Preferably, the lifting rod is connected with a push rod motor, and the push rod motor drives the lifting rod to move up and down through rotary motion, so that the lifting of the multiple-sample bearing rod is controlled; the test sample on the sample connecting rod can be immersed into/separated from the solution in the solution tank along with the lifting of the multi-sample carrying rod.

Preferably, the dehumidifier and the salt fog generator are electrically connected with the humidity control module, and the humidity inside the device and the salt fog humidity are controlled by the humidity control module, so that the humidity inside the device is adjusted.

Preferably, the temperature control module is used for monitoring and adjusting the temperature inside the device, so as to realize the adjustment of the temperature inside the device; the air pressure control module is used for monitoring and adjusting the air pressure in the device and realizing the adjustment of the air pressure in the device.

Preferably, an air inlet and outlet are arranged on the bottom of the device, and a sealing gasket for keeping the tightness of the box body and preventing humidity, air pressure and temperature from leaking is arranged on the air inlet and outlet.

Preferably, the PLC controller comprises a PLC control humidity key, a PLC control temperature key, a PLC control pressure key, a switch button and an LCD display screen; the PLC control humidity key, the PLC control temperature key and the PLC control pressure key are respectively connected with the humidity control module, the temperature control module and the air pressure control module and are used for setting and adjusting humidity, temperature and air pressure parameters in the device; the switch button is used for controlling the switch state of the whole device; the LCD display screen is used for displaying the numerical value and state of the current humidity, temperature and air pressure parameters and the prompt information of the operation instruction.

The beneficial effects of the utility model are as follows:

1) The device can improve the experimental efficiency, increase the contrast with a parallel experimental group, and is provided with a plurality of experimental solution tanks and corresponding samples, so that a plurality of groups of parallel experiments can be simultaneously carried out, the problem that the experimental effect is not ideal due to inconsistent experimental systems, the experimental efficiency is improved, and the problem of poor reproducibility of the parallel experiments is solved;

2) According to the utility model, the temperature, humidity, air pressure, infiltration and drying are controlled by the PLC, so that a specific environment is accurately simulated, and the performance and durability of a product or material under the actual use condition can be evaluated and verified;

3) The utility model can reduce the influence of variables, increase a temperature control system, a humidity control system and an air pressure control system, control the humidity through the salt fog generator, control the air pressure in the space through the air pressure control module so as to reduce the influence of the temperature, the humidity and the air pressure variables on experiments, and can also conduct the rule research of the influence of the temperature, the humidity and the air pressure changes on corrosion;

4) The utility model saves the experiment cost, can reduce the solution dosage and other consumables required by the same group of experiments, reduces the cost and the expenditure of the experiment, and improves the experiment efficiency and the device utilization rate.

Drawings

FIG. 1 is a schematic diagram of the structure of the device of the present utility model;

in the figure, the device comprises a 1-sealed box body, a 2-dehumidifier, a 3-salt spray generator, a 4-multiple sample bearing rod, a 5-lifting rod, a 6-test sample, a 7-solution tank, an 8-push rod motor, a 9-humidity control module, a 10-temperature control module, a 11-air pressure control module, a 12-air inlet and outlet, a 13-sealing gasket, a 14-sample fixing port, a 15-sample connecting rod, a 16-PLC control humidity key, a 17-PLC control temperature key, a 18-PLC control pressure key, a 19-switch button and a 20-LCD display screen.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be construed as limiting the scope, and other related drawings may be obtained according to the drawings without inventive effort to those of ordinary skill in the art. It will be apparent that the described embodiments are also only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in FIG. 1, the simulation device comprises a sealed box body 1, a dehumidifier 2, a salt fog generator 3, a PLC controller, a multi-sample bearing rod 4, a lifting rod 5, a solution tank 7, a push rod motor 8, a humidity control module 9, a temperature control module 10 and an air pressure control module 11.

The sealed box 1 is an acrylic sealed box, temperature and humidity and air pressure in a control device of a PLC are controlled, lifting of a motor is achieved through PLC programming to drive infiltration and drying of a sample, alternate dry and wet circulation is achieved, and the required infiltration and drying periods can be controlled through programming to achieve states with different dry and wet ratios.

Further, a dehumidifier 2 is provided at an upper portion of the side wall of the cabinet, and the dehumidifier is connected to the humidity control module 9 to realize the adjustment of the humidity inside the apparatus. The dehumidifier receives the instruction sent by the humidity control module and correspondingly controls the working state of the dehumidifier. And the salt fog generator 3 is arranged at the top of the box body and is connected with the humidity control module so as to achieve the relative humidity required to be controlled.

Further, the vertical setting of lifter 5 symmetry is in the inside both sides of sealed box 1, with the multiple sample carrier bar 4 of two lifter 5 end connection, and multiple sample carrier bar is used for laying test sample, and it links to each other with lifter 5 and sample connecting rod 15, and the lifter passes through the reciprocating of lifting motion control multiple sample carrier bar 4, and sample connecting rod 15 is used for fixed sample in the position on multiple sample carrier bar, can realize the experiment of many parallel appearance.

Further, the lifting rod 5 is connected with a push rod motor 8, and the push rod motor 8 drives the lifting rod 5 to move up and down through rotary motion, so that the lifting of the multi-sample bearing rod 4 is controlled; the interval is provided with a plurality of sample fixed mouths 14 on the multiple sample carrier bar, and every sample fixed mouths 14 all links to each other with one of them one end of sample connecting rod 15, and the other end and the test sample 6 of sample connecting rod are connected, and the test sample is placed on multiple sample carrier bar promptly to carry out dry and wet circulation experiment in turn.

Further, a solution tank 7 is correspondingly arranged at the bottom position right below each sample fixing port 14, and the solution tank 7 is used for containing a solution to soak the test sample. The humidity control module 9 is responsible for monitoring and adjusting the humidity level inside the device, receives the instruction sent by the PLC controller, and adjusts the working state of the dehumidification device 2 according to the feedback signal of the humidity sensor. The temperature control module 10 is used for monitoring and adjusting the temperature inside the device, and is connected (electrically connected) with the PLC controller. The temperature control module 10 receives an instruction from the PLC controller and controls the operating state of the temperature adjusting device according to the feedback signal of the temperature sensor, so as to realize the adjustment of the internal temperature of the device. The air pressure control module 11 is used for monitoring and adjusting the air pressure inside the device.

Further, an air inlet and outlet 12 is arranged at the bottom of the device, and a sealing gasket 13 for keeping the tightness of the box body and preventing humidity, air pressure and temperature from leaking is arranged on the air inlet and outlet 12. When the experiment starts, the air inlet and the air outlet are sealed, and when the experiment is finished, the air inlet and the air outlet can be opened. The sample fixing port is connected with the solution tank and is used for fixing the position of the test sample so that the test sample can be soaked in the solution.

Further, the PLC controller includes a PLC control humidity button 16, a PLC control temperature button 17, a PLC control pressure button 18, a switch button 19, and an LCD display 20; the PLC control humidity key 16, the PLC control temperature key 17 and the PLC control pressure key 18 are respectively connected with the humidity control module 9, the temperature control module 10 and the air pressure control module 11 and are used for setting and adjusting humidity, temperature and air pressure parameters in the device.

The switch button 19 is used for controlling the switch state of the whole device, including the start and stop of the power supply and the respective functional modules. The LCD display 20 is connected to the PLC controller for displaying the current values and states of parameters such as humidity, temperature and air pressure, and prompt information of the operation instruction.

When the device provided by the utility model is adopted for experiments, the dry-wet alternate simulation specifically comprises the following steps:

1. and the lifting motion of the motor is controlled to drive the sample bearing rod to move up and down, so that the sample is soaked and dried. According to a pre-written program, the PLC controls the running time and speed of the motor so as to realize a set dry-wet alternate cycle period;

2. setting target temperature, humidity and air pressure: setting required target temperature, humidity and air pressure conditions by operating corresponding keys on the PLC;

3. a starting device: pressing a switch button starting device, starting a power supply, and starting each module to work;

humidity control: the humidity control module adjusts the working state of the dehumidifier according to the instruction sent by the PLC controller so as to control the humidity level in the device;

4. and (3) temperature control: the temperature control module receives an instruction from the PLC controller and controls the working state of the temperature regulating device according to a feedback signal of the temperature sensor so as to realize the regulation of the internal temperature of the device. According to the set target temperature, the temperature control module controls the heating or cooling function of the temperature regulating device to ensure that the temperature inside the device is stable within a required range;

5. and (3) air pressure control: the air pressure control module is used for monitoring and adjusting the air pressure inside the device. According to the instruction sent by the PLC controller, the air pressure control module adjusts the air pressure level in the air pressure device by controlling the air pressure device so as to meet the experimental requirement;

6. sample treatment: the sample to be tested is placed on the sample carrier bar and fixed in place. The sample bearing rod is connected with the lifting rod and the sample connecting rod to fix and move the sample;

7. salt mist generation: according to experimental requirements, generating a salt fog environment through a salt fog generator, and controlling the level of relative humidity through a humidity control module;

8. monitoring and recording: during the experiment, the sensor is used to monitor and record the changes of the parameters such as temperature, humidity, air pressure and the like inside the device. The data can be displayed and recorded in real time through the PLC and the LCD display screen;

9 data analysis: and carrying out data analysis and result evaluation according to the data obtained after the experiment is ended. And evaluating the corrosion condition of the sample under different temperature, humidity and air pressure conditions by analyzing the experimental result.

The utility model can control temperature, humidity, air pressure and control the lifting of samples to realize the dry-wet alternate circulation so as to study the corrosion condition of different materials in the dry-wet alternate environment. The method can realize multiple sample carrying, can reduce the accident of experiments, improve the experiment efficiency and accuracy, and reduce the corrosion condition of the studied actual environment to a higher degree, thereby providing data and theoretical support for daily maintenance and repair of materials in the environment and evaluation of the corrosion resistance of the materials.

The utility model discloses can control temperature, humidity and atmospheric pressure simultaneously to the dry wet alternate condition under the different environmental conditions of simulation. By precisely controlling these parameters, the corrosion behavior of the material in the actual environment can be studied more accurately.

The utility model discloses a plurality of samples can be carried in a flexible way according to the experiment demand to the device adopts the modularized design to reduce the contingency of experiment. The design can also improve the experimental efficiency and accuracy, and simultaneously reduce the experimental cost.

The utility model discloses a design with ya keli board is sealed around, the gas tightness can be realized to the device to control atmospheric pressure. The design enables the experimental environment to be closer to the actual condition, and the corrosion condition of the actual environment studied can be reduced to a higher degree. According to the needs of different experimental environments, the device can easily switch different solution systems. The humidity control device can also be controlled by a salt spray generator to simulate a salt spray corrosion environment.

The utility model discloses the lift of push rod is controlled through time program to the device, can adjust the position of sample as required, realizes the experimental demand under the different wet and dry alternative conditions.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (6)

1. A dry-wet alternate simulation experiment device capable of realizing multi-factor control is characterized in that: the device comprises: the device comprises a sealed box body (1), a dehumidifier (2) arranged at the upper part of the side wall of the box body, a salt fog generator (3) arranged at the top of the box body, a PLC (programmable logic controller), a humidity control module (9), a temperature control module (10) and an air pressure control module (11) which are electrically connected with the PLC, a push rod motor (8), lifting rods (5) symmetrically and vertically arranged at two sides of the inner part of the sealed box body, and a multiple sample bearing rod (4) connected with the ends of the two lifting rods; a plurality of sample fixing ports (14) are formed in the multiple sample bearing rods at intervals, each sample fixing port is connected with one end of a sample connecting rod (15), and the other end of the sample connecting rod is connected with a test sample (6); a solution tank (7) is correspondingly arranged at the bottom part right below each sample fixing port.

2. The dry-wet alternation simulation experiment device capable of realizing multi-factor control according to claim 1, wherein the device is characterized in that: the lifting rod (5) is connected with a push rod motor (8), and the push rod motor (8) drives the lifting rod to move up and down through rotary motion, so that the lifting of the multi-sample bearing rod (4) is controlled; test samples on the sample connecting rod (15) can be immersed into/separated from the solution in the solution tank along with the lifting of the multi-sample carrying rod.

3. The dry-wet alternation simulation experiment device capable of realizing multi-factor control according to claim 1, wherein the device is characterized in that: the dehumidifier (2) and the salt fog generator (3) are electrically connected with the humidity control module (9), and the humidity inside the device and the salt fog humidity are controlled by the humidity control module (9) so as to realize the adjustment of the humidity inside the device.

4. The dry-wet alternation simulation experiment device capable of realizing multi-factor control according to claim 1, wherein the device is characterized in that: the temperature control module (10) is used for monitoring and adjusting the temperature inside the device and realizing the adjustment of the temperature inside the device; the air pressure control module (11) is used for monitoring and adjusting the air pressure in the device and realizing the adjustment of the air pressure in the device.

5. The dry-wet alternation simulation experiment device capable of realizing multi-factor control according to claim 1, wherein the device is characterized in that: an air inlet and outlet (12) is arranged at the bottom of the device, and a sealing gasket (13) for keeping the tightness of the box body and preventing humidity, air pressure and temperature from leaking is arranged on the air inlet and outlet.

6. The dry-wet alternation simulation experiment device capable of realizing multi-factor control according to claim 1, wherein the device is characterized in that: the PLC controller comprises a PLC control humidity key (16), a PLC control temperature key (17), a PLC control pressure key (18), a switch button (19) and an LCD display screen (20); the PLC control humidity key (16), the PLC control temperature key (17) and the PLC control pressure key (18) are respectively connected with the humidity control module (9), the temperature control module (10) and the air pressure control module (11) and are used for setting and adjusting humidity, temperature and air pressure parameters in the device; the switch button (19) is used for controlling the switch state of the whole device; the LCD display screen (20) is used for displaying the numerical value and state of the current humidity, temperature and air pressure parameters and the prompt information of the operation instructions.