CN212459341U - Test device for rapidly evaluating atmospheric wind stress corrosion - Google Patents
Test device for rapidly evaluating atmospheric wind stress corrosion Download PDFInfo
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- CN212459341U CN212459341U CN202021414828.9U CN202021414828U CN212459341U CN 212459341 U CN212459341 U CN 212459341U CN 202021414828 U CN202021414828 U CN 202021414828U CN 212459341 U CN212459341 U CN 212459341U
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Abstract
The utility model provides a quick evaluation atmosphere wind stress corrosion's test device, including experimental box, the internal atmosphere chamber subassembly that is equipped with of proof box, atmosphere chamber subassembly is connected with temperature and humidity control module, wind air current control module respectively, one side of atmosphere chamber subassembly is equipped with the sample support. The utility model has small volume, convenient movement and assembly, and can arbitrarily adjust the flow velocity of the wind and air flow; there are two ways of simultaneously generating the wind current: the point wind flow and the line wind flow solve the problem of generating single point wind flow impact; in addition, the device is provided with the sample support capable of rotating the angle, so that the evaluation problem of wind stress erosion at different angles can be solved.
Description
Technical Field
The utility model relates to a metal substrate, protection film and coating atmospheric environment corrosion monitoring and evaluation device technical field, more specifically relates to a test device of quick research and evaluation atmosphere wind stress erosion.
Background
Corrosion and failure of materials in the atmospheric environment is the most prevalent type of corrosion of materials, which is the result of the combined action of many environmental and meteorological factors in the atmosphere at the surface of the material. If the metal base material, the protective film and the coating which are in the atmospheric environment are simultaneously influenced by strong wind stress, the stripping of the anticorrosive coating on the surface of the material and the stress cracking of the base material can be accelerated, so that the material or the component is aged and cracked in advance, the service life of the material or the component is greatly shortened, and serious property loss and casualties can be caused in severe cases.
Environmental elements and meteorological factors influencing atmospheric corrosion are numerous and complex. Therefore, the mechanism of material corrosion and failure under the coupling action of atmospheric environmental factors and meteorological factors is the most complex, the most severe and the most difficult to protect.
At present, the indoor rapid monitoring and evaluation technology of wind stress induced materials in the aspects of corrosion, fatigue, failure and the like in the atmospheric environment has the following defects:
(1) at present, atmospheric environmental factors such as atmosphere type, salt content, pollutant types and content and the like are monitored and evaluated in an atmospheric corrosion chamber, meteorological factors mainly relate to gas injection temperature and relative humidity, and the attention to material corrosion and failure induced by wind stress is little, for example, the technical scheme disclosed in Chinese patents CN201810624094.8 and CN 201811590983.3;
(2) most atmospheric corrosion monitoring technologies and test devices related to air volume transmit different types of solution or gas pollutants by utilizing the power of wind, such as technical schemes disclosed in Chinese patents CN201520234277.0, CN201420248245.1 and CN 201310025560.8; the atmosphere temperature in the gas box can be controlled by using different air volume and air temperature (such as the technical scheme disclosed in the Chinese patent CN 201310025560.8) or the rainfall environment can be simulated (such as the technical scheme disclosed in the Chinese patent CN 201420248245.1), but the atmospheric corrosion process of the material is not directly monitored and evaluated by the wind stress, and meanwhile, the monitoring or testing devices are large in box body, complex in structure and low in evaluation efficiency.
With the acceleration of global climate change, extreme weather events frequently occur, and the frequency of occurrence of ultra-strong typhoons is increased sharply, so that the damage of metal materials, components and protective layers thereof is increasingly serious, and property and personnel safety accidents caused by the damage are frequent. Therefore, the experimental device for rapidly researching and evaluating atmospheric wind stress corrosion is significant by researching the corrosion behavior and mechanism of the strong wind stress on metal materials and members, developing and evaluating atmospheric corrosion monitoring and evaluating technology under wind stress and developing a set of experimental device capable of rapidly researching and evaluating atmospheric wind stress corrosion.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a test device for fast research and evaluation of atmospheric wind stress erosion, which is not only small in size and convenient for movement and assembly, but also can arbitrarily adjust the flow velocity of wind and air flow; there are two ways in which the wind current can be generated: the point wind flow and the line wind flow solve the problem of generating single point wind flow impact; in addition, the device is provided with the sample support capable of rotating the angle, so that the evaluation problem of wind stress erosion at different angles can be solved.
The technical scheme of the utility model is that:
a test device for rapidly evaluating atmospheric wind stress corrosion comprises a test box body, and is characterized in that an atmosphere cavity assembly is arranged in the test box body, the atmosphere cavity assembly is respectively connected with a temperature and humidity control module and a wind and air flow control module, and a sample support is arranged on one side of the atmosphere cavity assembly;
the atmosphere cavity assembly comprises a cavity, openings are respectively arranged on two sides of the cavity, a connecting part is arranged on the outer edge of the opening on one side of the cavity, and a straight pipe part is connected with the opening on the other side of the cavity;
a fixing lug body and a backflow cover are arranged in the cavity, the backflow cover is arranged in the central area of the cavity, the fixing lug bodies are symmetrically arranged on the outer side of the backflow cover, and the fixing lug bodies are connected with the inner wall of the cavity; one side of the connecting part is connected with a sealing bottom plate, an air outlet guide pipe is arranged in the middle of the sealing bottom plate in a penetrating mode, and one side of the air outlet guide pipe is arranged in the central area of the backflow cover.
The utility model discloses in, it is fixed to support the bonding through fixed ear body is crisscross between cavity and the backward flow cover, does benefit to the unobstructed circulation of effective isolation and the air current between guarantee backward flow cover and the cavity.
Further, connecting portion are equipped with first recess, sealing plate's bilateral symmetry is equipped with the second recess, first recess corresponds the cooperation setting with the second recess, be equipped with rubber seal between first recess and the second recess, connecting portion are connected with the rings fixation clamp with sealing plate's the outside. Preferably, the lifting ring fixing clamp, the first groove and the second groove are located at the same horizontal height. Through the sealing action of rings fixation clamp and rubber packing ring, can guarantee that all wind current flows out from the air-out pipe.
Furthermore, a spiral pipe is arranged in the straight pipe part, so that effective heating and temperature stabilization of wind airflow are facilitated.
Further, the temperature and humidity control module comprises a heating portion, a temperature and humidity sensor and a temperature and humidity control system, the heating portion is arranged in a region, corresponding to the spiral pipe, outside the straight pipe portion, a pipe hole is formed in the straight pipe portion, the temperature and humidity sensor is installed at the pipe hole, and the heating portion and the temperature and humidity sensor are connected with the temperature and humidity control system respectively.
Preferably, the heating part is connected with a temperature and humidity control system through a line, and the temperature and humidity sensor is connected with the temperature and humidity control system through a wired connection or a wireless connection in the prior art. The temperature and humidity sensor is arranged on one side close to the cavity.
Preferably, the heating part is a heating resistance wire.
Preferably, the temperature of the air flow can be adjusted between room temperature and 70 ℃ through the temperature and humidity control module, so that the stable operation of the test is ensured.
Furthermore, the air flow control module comprises an atomizer and an air inlet device, one end of the atomizer extends into the straight pipe part to be connected with the spiral pipe, a rubber plug is arranged in the area of the straight pipe part corresponding to the atomizer, and the other end of the atomizer is connected with the air inlet device; the upper part of the atomizer is connected with a peristaltic pump sample introduction system. Preferably, the air inlet device is a high-pressure air pump or a high-pressure fan.
In the utility model, the impact strength of the wind current can be adjusted between the breeze level and the strong typhoon level through the wind current control module; the relative humidity of the air flow can be adjusted between dry atmosphere and wet atmosphere by a peristaltic pump sample injection system and a temperature and humidity sensor; through the peristaltic pump sample introduction system, the types and the contents of liquid drop substances entering the air flow control system can be conveniently adjusted, and the evaluation of the erosion degree of air flow containing different salts and pollutants is facilitated.
Further, the horizontal section of the cavity is U-shaped; the cavity, the connecting part and the straight pipe part are integrally connected and formed to form an atmosphere cavity main body.
Preferably, the atmosphere cavity main body is made of one or more mixed materials of quartz, glass, stainless steel, high-strength plastic and the like in the prior art, and the stable structure and the high-temperature resistance of the atmosphere cavity main body are guaranteed.
Preferably, the atmosphere chamber body is any one of a quartz body, a glass body, a stainless steel body and a high-strength plastic body. Preferably, the atmosphere cavity main body is arranged in the test box body through a fixing frame in the prior art.
Furthermore, an overflow pipe hole is formed below the cavity, so that waste liquid remained at the bottom of the cavity can be discharged conveniently.
Furthermore, the air outlet of the air outlet guide pipe is a circular hole air outlet or a linear air outlet, so that the air outlet guide pipe can provide point-shaped and linear air flow, and the erosion characteristic from single-point air flow impact to continuous linear air flow impact is favorably inspected and evaluated.
Further, the sample support comprises a base, a supporting rod is arranged on the base, a fixing knob is arranged at the upper end of the supporting rod, and the fixing knob is connected with a telescopic sample clamp. The sample support faces the air outlet pipe. The telescopic sample clamp is beneficial to fixing samples with different sizes; through rotatable fixed knob, can conveniently adjust the angle between sample and the air-out pipe, conveniently investigate the erosion behavior and the law of wind current under the different angle of impact, do benefit to the erosion characteristic and the erosion degree that aassessment wind current strikes to the tangent plane from the front and assaults.
Furthermore, exhaust holes are symmetrically formed in one side of the test box body, and air inlet holes are formed in the other side of the test box body. Preferably, the number of the exhaust holes is 6. The exhaust hole is used for exhaust emission, and the air inlet is used for introducing high-pressure airflow to the atomizer. The exhaust vent may be connected to a prior art exhaust collection device.
Furthermore, a first circuit hole and a second circuit hole are respectively arranged above the test box body, and the first circuit hole is correspondingly arranged above the temperature and humidity control module and is used for being connected with a temperature and humidity control system; and the second line hole is correspondingly arranged above the air flow control module and is used for connecting a peristaltic pump sample feeding system.
The test box body is provided with a side sliding door which is made of transparent materials, such as PP plastic sliding doors in the prior art, and the side sliding door is beneficial to conveniently opening or closing the box door and observing the running condition in the test box.
It should be noted that the temperature and humidity control module, the air flow control module and the peristaltic pump sample feeding system can be realized by any prior art. In particular, the present application relates to technical features of software and circuit programs, and the implementation of functions thereof belongs to the prior art, and the essence of the technical solution of the present application is to improve the composition and connection relationship of hardware parts, and does not relate to the improvement of the software program or the circuit structure itself.
The utility model discloses in, form stable punctiform or linear wind air current through atmosphere chamber subassembly, cooperation temperature and humidity control module control test box body wind air current's temperature and humidity to and through wind air current control module, peristaltic pump sampling system control respectively get into the wind air current's in atmosphere chamber the velocity of flow and the volume of solution, the different orientation of rethread sample support adjustment sample and the interval of sample and atmosphere chamber subassembly cavity.
The utility model discloses a test device can provide stable punctiform and linear wind air current, can the test environment of multiple factors such as true simulation temperature, humidity, salt fog, pollutant and wind air current combined action, and the erosion behavior and the law of materials such as metal substrate, protection film and coating under the wind stress coupling effect in the atmospheric environment are appraised fast.
The utility model also provides a foretell test method of quick evaluation atmosphere wind stress corrosion's test device, specifically include following step:
s1, after all parts of the testing device are assembled, opening an air inlet device, and adjusting the required air flow velocity;
s2, preparing one of pure water, a salt solution or a solution containing pollutants according to test requirements, and then adjusting the sample injection flow rate of the solution through a peristaltic pump sample injection system and a temperature and humidity control system to form stable aerosol;
s3, adjusting the heating power of the heating part through a temperature and humidity control system, and heating and maintaining the temperature required by the air flow;
s4, after the flow velocity, the temperature or/and the air mist of the air flow are stabilized, fixing a sample to be evaluated on a sample support, adjusting the angle between the sample to be evaluated and the air flow by rotating a fixing knob of the sample support, and obtaining the impact angle required by the air flow;
s5, after the impact angle of the air flow and the flow velocity, temperature or/and aerosol thereof are stable, evaluating the erosion degree of the air flow to the sample material to be tested at different flow velocities, different temperatures or/and different types of aerosol can be started;
when only the erosion degree of the air current under the different types of the aerial fog with different flow rates to the sample material to be tested needs to be evaluated, the operation of the step S3 is not carried out; when only the evaluation of the erosion degree of the air flow to the sample material to be tested at different flow rates and different temperatures needs to be tested, the operation of step S2 is not performed.
The utility model discloses can realize providing the wind air current of different temperatures, different relative humidity, different pollutant kinds and content, the wind air current can be for stable punctiform and threadlike wind air current simultaneously, and the angle also can be adjusted. Through the utility model discloses test device utilizes electrochemical technology and other surface monitoring techniques can study metal substrate, protection film and coating and corrode action, law and the mechanism that became invalid under atmospheric atmosphere + wind stress coupling to evaluate metal substrate, protection film and coating life under atmospheric atmosphere + wind stress coupling.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses can provide two kinds of stable wind air current: the problem of erosion effect of only generating single point-shaped wind current is solved by point-shaped wind current and linear wind current;
(2) the utility model can simulate and evaluate the erosion effect problem of the wind stress from breeze level to strong-wind cyclone level and to super-strong typhoon level to the metal base material;
(3) the utility model can simulate and evaluate the cooperative erosion problem of the metal material after coupling wind stress under different temperature and humidity, different material types and pollution levels;
(4) adopt the utility model discloses test, the test result of obtaining has stability, acceleration nature and reproducibility, can be used to investigate all kinds of metal substrate, protection film and the erosion behavior and the law of coating under the effect of atmosphere wind stress, and quick evaluation and prediction atmosphere wind stress erosion characteristic and intensity provide the foundation for reasonable material selection and select for use suitable protection method.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic structural view of the atmosphere chamber body of the present invention;
FIG. 4 is a schematic structural view of the main body of the atmosphere chamber of the present invention;
fig. 5 is a schematic view of a partial structure of the present invention;
fig. 6 is a schematic view of an air outlet structure of an air outlet duct according to an embodiment of the present invention;
fig. 7 is a schematic view of an air outlet structure of an air outlet duct according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of the sample holder of the present invention;
fig. 9 is a schematic structural diagram of the testing box according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
A test device for rapidly evaluating atmospheric wind stress corrosion comprises a test box body 1 and is characterized in that an atmosphere cavity assembly 2 is arranged in the test box body, the atmosphere cavity assembly is respectively connected with a temperature and humidity control module 3 and a wind and air flow control module 4, and a sample support 5 is arranged on one side of the atmosphere cavity assembly;
the atmosphere cavity assembly comprises a cavity 21, openings are respectively arranged on two sides of the cavity, a connecting part 22 is arranged on the outer edge of the opening on one side of the cavity, and a straight pipe part 23 is connected to the opening on the other side of the cavity;
a fixing lug body 24 and a backflow cover 25 are arranged in the cavity, the backflow cover is arranged in the central area of the cavity, the fixing lug bodies are symmetrically arranged on the outer side of the backflow cover, and the fixing lug bodies are connected with the inner wall of the cavity; one side of connecting portion is connected with sealed bottom plate 26, air-out pipe 27 is worn to be equipped with in the middle part of sealed bottom plate, one side of air-out pipe set up in the central zone of backward flow cover.
The utility model discloses in, it is fixed to support the bonding through fixed ear body is crisscross between cavity and the backward flow cover, does benefit to the unobstructed circulation of effective isolation and the air current between guarantee backward flow cover and the cavity.
Further, connecting portion 22 is equipped with first recess 221, the bilateral symmetry of sealing bottom plate 26 is equipped with second recess 261, first recess corresponds the cooperation setting with the second recess, be equipped with rubber seal 28 between first recess and the second recess, connecting portion and sealing bottom plate's the outside are connected with rings fixation clamp 29. Preferably, the lifting ring fixing clamp, the first groove and the second groove are located at the same horizontal height. Through the sealing action of rings fixation clamp and rubber packing ring, can guarantee that all wind current flows out from the air-out pipe.
Further, a spiral pipe 231 is arranged in the straight pipe portion, and effective heating and temperature stabilization of wind airflow are facilitated.
Further, the temperature and humidity control module 3 includes a heating portion 31, a temperature and humidity sensor 32 and a temperature and humidity control system 33, the heating portion is disposed in a region corresponding to the spiral pipe outside the straight pipe portion, the straight pipe portion is provided with a pipe hole 232, the temperature and humidity sensor is mounted at the pipe hole, and the heating portion and the temperature and humidity sensor are respectively connected with the temperature and humidity control system.
Preferably, the heating part is connected with a temperature and humidity control system through a line, and the temperature and humidity sensor is connected with the temperature and humidity control system through a wired connection or a wireless connection in the prior art. The temperature and humidity sensor is arranged on one side close to the cavity.
Preferably, the heating part is a heating resistance wire.
Preferably, the temperature of the air flow can be adjusted between room temperature and 70 ℃ through the temperature and humidity control module, so that the stable operation of the test is ensured.
Further, the air flow control module 4 comprises an atomizer 41 and an air inlet device 42, one end of the atomizer extends into the straight pipe part to be connected with the spiral pipe, a rubber plug 43 is arranged in an area of the straight pipe part corresponding to the atomizer, and the other end of the atomizer is connected with the air inlet device; the upper part of the atomizer is connected with a peristaltic pump sample introduction system 44. Preferably, the air inlet device is a high-pressure air pump.
In the utility model, the impact strength of the wind current can be adjusted between the breeze level and the strong typhoon level through the wind current control module; the relative humidity of the air flow can be adjusted between dry atmosphere and wet atmosphere by a peristaltic pump sample injection system and a temperature and humidity sensor; through the peristaltic pump sample introduction system, the types and the contents of liquid drop substances entering the air flow control system can be conveniently adjusted, and the evaluation of the erosion degree of air flow containing different salts and pollutants is facilitated.
Further, the horizontal section of the cavity is U-shaped; the cavity, the connecting part and the straight pipe part are integrally connected and formed to form an atmosphere cavity main body 20.
Preferably, the atmosphere chamber body is a quartz body. Preferably, the atmosphere cavity main body is arranged in the test box body through a fixing frame in the prior art.
Further, an overflow pipe hole 211 is formed below the cavity 21, so that waste liquid remaining at the bottom of the cavity can be discharged.
Further, the air outlet of the air outlet duct 27 is a circular hole air outlet, so that the air outlet duct can provide a point-like air flow, and the erosion characteristic of single-point air flow impact is favorably inspected and evaluated.
Further, the sample support 5 comprises a base 51, a support rod 52 is arranged on the base, a fixing knob 53 is arranged at the upper end of the support rod, and the fixing knob is connected with a telescopic sample clamp 54. The sample support faces the air outlet pipe. The telescopic sample clamp is beneficial to fixing samples with different sizes; through rotatable fixed knob, can conveniently adjust the angle between sample and the air-out pipe, conveniently investigate the erosion behavior and the law of wind current under the different angle of impact, do benefit to the erosion characteristic and the erosion degree that aassessment wind current strikes to the tangent plane from the front and assaults.
Furthermore, one side of the test box body 1 is symmetrically provided with exhaust holes 11, and the other side of the box body is provided with an air inlet hole 12. Preferably, the number of the exhaust holes is 6. The exhaust hole is used for exhaust emission, and the air inlet is used for introducing high-pressure airflow to the atomizer. The exhaust vent may be connected to a prior art exhaust collection device.
Further, a first line hole 13 and a second line hole 14 are respectively arranged above the test box body, and the first line hole is correspondingly arranged above the temperature and humidity control module and is used for being connected with a temperature and humidity control system; and the second line hole is correspondingly arranged above the air flow control module and is used for connecting a peristaltic pump sample feeding system.
The test box body is provided with a side sliding door 15 which is a transparent material sliding door, such as a PP plastic sliding door in the prior art, and is beneficial to conveniently opening or closing the box door and observing the running condition in the test box.
It should be noted that the temperature and humidity control module, the air flow control module and the peristaltic pump sample feeding system can be realized by any prior art.
Example 2
A test device for rapidly evaluating atmospheric wind stress corrosion comprises a test box body 1 and is characterized in that an atmosphere cavity assembly 2 is arranged in the test box body, the atmosphere cavity assembly is respectively connected with a temperature and humidity control module 3 and a wind and air flow control module 4, and a sample support 5 is arranged on one side of the atmosphere cavity assembly;
the atmosphere cavity assembly comprises a cavity 21, openings are respectively arranged on two sides of the cavity, a connecting part 22 is arranged on the outer edge of the opening on one side of the cavity, and a straight pipe part 23 is connected to the opening on the other side of the cavity;
a fixing lug body 24 and a backflow cover 25 are arranged in the cavity, the backflow cover is arranged in the central area of the cavity, the fixing lug bodies are symmetrically arranged on the outer side of the backflow cover, and the fixing lug bodies are connected with the inner wall of the cavity; one side of connecting portion is connected with sealed bottom plate 26, air-out pipe 27 is worn to be equipped with in the middle part of sealed bottom plate, one side of air-out pipe set up in the central zone of backward flow cover.
The utility model discloses in, it is fixed to support the bonding through fixed ear body is crisscross between cavity and the backward flow cover, does benefit to the unobstructed circulation of effective isolation and the air current between guarantee backward flow cover and the cavity.
Further, connecting portion 22 is equipped with first recess 221, the bilateral symmetry of sealing bottom plate 26 is equipped with second recess 261, first recess corresponds the cooperation setting with the second recess, be equipped with rubber seal 28 between first recess and the second recess, connecting portion and sealing bottom plate's the outside are connected with rings fixation clamp 29. Preferably, the lifting ring fixing clamp, the first groove and the second groove are located at the same horizontal height. Through the sealing action of rings fixation clamp and rubber packing ring, can guarantee that all wind current flows out from the air-out pipe.
Further, a spiral pipe 231 is arranged in the straight pipe portion, and effective heating and temperature stabilization of wind airflow are facilitated.
Further, the temperature and humidity control module 3 includes a heating portion 31, a temperature and humidity sensor 32 and a temperature and humidity control system 33, the heating portion is disposed in a region corresponding to the spiral pipe outside the straight pipe portion, the straight pipe portion is provided with a pipe hole 232, the temperature and humidity sensor is mounted at the pipe hole, and the heating portion and the temperature and humidity sensor are respectively connected with the temperature and humidity control system.
Preferably, the heating part is connected with a temperature and humidity control system through a line, and the temperature and humidity sensor is connected with the temperature and humidity control system through a wired connection or a wireless connection in the prior art. The temperature and humidity sensor is arranged on one side close to the cavity.
Preferably, the heating part is a heating resistance wire.
Preferably, the temperature of the air flow can be adjusted between room temperature and 70 ℃ through the temperature and humidity control module, so that the stable operation of the test is ensured.
Further, the air flow control module 4 comprises an atomizer 41 and an air inlet device 42, one end of the atomizer extends into the straight pipe part to be connected with the spiral pipe, a rubber plug 43 is arranged in an area of the straight pipe part corresponding to the atomizer, and the other end of the atomizer is connected with the air inlet device; the upper part of the atomizer is connected with a peristaltic pump sample introduction system 44. Preferably, the air inlet device is a high-pressure fan.
In the utility model, the impact strength of the wind current can be adjusted between the breeze level and the strong typhoon level through the wind current control module; the relative humidity of the air flow can be adjusted between dry atmosphere and wet atmosphere by a peristaltic pump sample injection system and a temperature and humidity sensor; through the peristaltic pump sample introduction system, the types and the contents of liquid drop substances entering the air flow control system can be conveniently adjusted, and the evaluation of the erosion degree of air flow containing different salts and pollutants is facilitated.
Further, the horizontal section of the cavity is U-shaped; the cavity, the connecting part and the straight pipe part are integrally connected and formed to form an atmosphere cavity main body 20.
Preferably, the atmosphere cavity body is a stainless steel body. Preferably, the atmosphere cavity main body is arranged in the test box body through a fixing frame in the prior art.
Further, an overflow pipe hole 211 is formed below the cavity 21, so that waste liquid remaining at the bottom of the cavity can be discharged.
Further, the air outlet of the air outlet duct 27 is a linear air outlet, so that the air outlet duct can provide linear air flow, and the erosion characteristic of continuous linear air flow impact is favorably inspected and evaluated.
Further, the sample support 5 comprises a base 51, a support rod 52 is arranged on the base, a fixing knob 53 is arranged at the upper end of the support rod, and the fixing knob is connected with a telescopic sample clamp 54. The sample support faces the air outlet pipe. The telescopic sample clamp is beneficial to fixing samples with different sizes; through rotatable fixed knob, can conveniently adjust the angle between sample and the air-out pipe, conveniently investigate the erosion behavior and the law of wind current under the different angle of impact, do benefit to the erosion characteristic and the erosion degree that aassessment wind current strikes to the tangent plane from the front and assaults.
Furthermore, one side of the test box body 1 is symmetrically provided with exhaust holes 11, and the other side of the box body is provided with an air inlet hole 12. Preferably, the number of the exhaust holes is 6. The exhaust hole is used for exhaust emission, and the air inlet is used for introducing high-pressure airflow to the atomizer. The exhaust vent may be connected to a prior art exhaust collection device.
Further, a first line hole 13 and a second line hole 14 are respectively arranged above the test box body, and the first line hole is correspondingly arranged above the temperature and humidity control module and is used for being connected with a temperature and humidity control system; and the second line hole is correspondingly arranged above the air flow control module and is used for connecting a peristaltic pump sample feeding system.
The test box body is provided with a side sliding door 15 which is a transparent material sliding door, such as a PP plastic sliding door in the prior art, and is beneficial to conveniently opening or closing the box door and observing the running condition in the test box.
It should be noted that the temperature and humidity control module, the air flow control module and the peristaltic pump sample feeding system can be realized by any prior art.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art.
Claims (10)
1. A test device for rapidly evaluating atmospheric wind stress corrosion comprises a test box body, and is characterized in that an atmosphere cavity assembly is arranged in the test box body, the atmosphere cavity assembly is respectively connected with a temperature and humidity control module and a wind and air flow control module, and a sample support is arranged on one side of the atmosphere cavity assembly;
the atmosphere cavity assembly comprises a cavity, openings are respectively arranged on two sides of the cavity, a connecting part is arranged on the outer edge of the opening on one side of the cavity, and a straight pipe part is connected with the opening on the other side of the cavity;
a fixing lug body and a backflow cover are arranged in the cavity, the backflow cover is arranged in the central area of the cavity, the fixing lug bodies are symmetrically arranged on the outer side of the backflow cover, and the fixing lug bodies are connected with the inner wall of the cavity;
one side of the connecting part is connected with a sealing bottom plate, an air outlet guide pipe is arranged in the middle of the sealing bottom plate in a penetrating mode, and one side of the air outlet guide pipe is arranged in the central area of the backflow cover.
2. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein the connecting portion is provided with a first groove, the two sides of the sealing bottom plate are symmetrically provided with a second groove, the first groove and the second groove are correspondingly matched, a rubber sealing ring is arranged between the first groove and the second groove, and the connecting portion and the outer side of the sealing bottom plate are connected with a lifting ring fixing clamp.
3. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein a spiral pipe is arranged in the straight pipe part.
4. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 3, wherein the temperature and humidity control module comprises a heating portion, a temperature and humidity sensor and a temperature and humidity control system, the heating portion is arranged at a region, corresponding to the spiral pipe, outside the straight pipe portion, the straight pipe portion is provided with a pipe hole, the temperature and humidity sensor is mounted at the pipe hole, and the heating portion and the temperature and humidity sensor are respectively connected with the temperature and humidity control system.
5. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 3, wherein the wind airflow control module comprises an atomizer and an air inlet device, one end of the atomizer extends into the straight pipe part to be connected with the spiral pipe, a rubber plug is arranged in the area of the straight pipe part corresponding to the atomizer, and the other end of the atomizer is connected with the air inlet device; the upper part of the atomizer is connected with a peristaltic pump sample introduction system.
6. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein the horizontal section of the cavity is U-shaped; the cavity, the connecting part and the straight pipe part are integrally connected and formed to form an atmosphere cavity main body.
7. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 6, wherein an overflow pipe hole is formed below the cavity.
8. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein the air outlet of the air outlet duct is a circular hole air outlet or a linear air outlet.
9. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein the sample support comprises a base, a support rod is arranged on the base, a fixing knob is arranged at the upper end of the support rod, and the fixing knob is connected with a telescopic sample clamp.
10. The test device for rapidly evaluating atmospheric wind stress corrosion according to claim 1, wherein the test box body is symmetrically provided with exhaust holes on one side and air inlet holes on the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021414828.9U CN212459341U (en) | 2020-07-17 | 2020-07-17 | Test device for rapidly evaluating atmospheric wind stress corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021414828.9U CN212459341U (en) | 2020-07-17 | 2020-07-17 | Test device for rapidly evaluating atmospheric wind stress corrosion |
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