CN115541488B - Corrosion test device of section steel concrete test piece under high-temperature water corrosion environment - Google Patents
Corrosion test device of section steel concrete test piece under high-temperature water corrosion environment Download PDFInfo
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- CN115541488B CN115541488B CN202211514716.4A CN202211514716A CN115541488B CN 115541488 B CN115541488 B CN 115541488B CN 202211514716 A CN202211514716 A CN 202211514716A CN 115541488 B CN115541488 B CN 115541488B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000005260 corrosion Methods 0.000 title claims abstract description 47
- 230000007797 corrosion Effects 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 239000004567 concrete Substances 0.000 title abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 22
- 210000001503 joint Anatomy 0.000 claims abstract description 10
- 239000008400 supply water Substances 0.000 claims abstract description 3
- 239000007864 aqueous solution Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000011150 reinforced concrete Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 241000309551 Arthraxon hispidus Species 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 description 20
- 239000000243 solution Substances 0.000 description 14
- 238000005507 spraying Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010129 solution processing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 calcium monocarbonate aluminate Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
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Abstract
The embodiment of the application provides a corrosion test device of shaped steel concrete test piece under high temperature water corrosion environment relates to the high temperature water corrosion field. The corrosion test device of shaped steel concrete test piece includes under the high temperature water corrosion environment: the articulated case lid of upset of experimental storehouse top opening part, and be provided with the spray pipe at the inner chamber roof of case lid, and the water jet has been seted up to the surface both sides of spray pipe, its water jet is towards the inside wall of case lid, be provided with the butt joint pipe that can supply water to the spray pipe in one side of spray pipe simultaneously, when the shaped steel concrete component carries out the high temperature water test, through endless water jet, can make case lid inner chamber roof form the water film that flows, prevent the adhesion of its vapor, further clean through cleaning the strip simultaneously, make things convenient for the observation of case lid.
Description
Technical Field
The application relates to the technical field of high-temperature water corrosion, in particular to a corrosion test device for a section steel concrete test piece in a high-temperature water corrosion environment.
Background
The combined structural member of stiff concrete (also called steel reinforced concrete or steel reinforced concrete) is composed of concrete, section steel, longitudinal steel bars and stirrups. In brief, shaped steel is added into original components such as reinforced concrete beams and columns, the bearing capacity of the components can be effectively improved and the axial pressure ratio of the components can be reduced after the shaped steel is added, when the components of the shaped steel concrete components are corroded in use, the mechanical properties of the shaped steel concrete components can be obviously reduced, and when the components are in a high-temperature and high-humidity severe environment, cement hydration products are decomposed to generate a large amount of ettringite and dihydrate gypsum crystals, new minerals such as dihydrate gypsum, calcium monocarbonate aluminate and 2C3A CaSO4.22H2O are formed, meanwhile, steel bars are seriously corroded, and the main reason that the bearing capacity of the parts of the engineering which are seriously corroded is obviously reduced is shown.
In order to further know the corrosion condition of the steel reinforced concrete member under the high-temperature water environment, the high-temperature water corrosion can be simulated through test equipment, the steel reinforced concrete is placed inside the test equipment, the water solution is continuously heated through the heating component inside the steel reinforced concrete member, the temperature of the water solution can be continuously increased, the environment of the high-temperature water can be simulated, and further the test equipment can be simulated.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. For this reason, this application provides the corrosion test device of shaped steel concrete test piece under high temperature water corrosion environment, when the shaped steel concrete component carries out the high temperature water test, through endless water jet, can make case lid inner chamber roof form the water film that flows, prevents the adhesion of its vapor, further cleans through cleaning the strip simultaneously, makes things convenient for the observation of case lid.
The corrosion test device for the section steel concrete test piece in the high-temperature water corrosion environment comprises corrosion test equipment and a test bin arranged on one side of the corrosion test equipment, wherein an opening above the test bin is hinged with a turnover box cover, a water spraying pipe is arranged on the top wall of an inner cavity of the box cover, water spraying ports are formed in two sides of the outer surface of the water spraying pipe, and the water spraying ports face to the inner side wall of the box cover;
meanwhile, one side of the spray pipe is provided with a butt joint pipe which can supply water to the spray pipe,
a circulating pipe is fixedly arranged on the side wall of the inner cavity of the test chamber, a water pump capable of pumping aqueous solution in the test chamber is fixedly arranged at the tail end opening of the circulating pipe, and the tail end opening of the butt joint pipe can be sleeved at the upper end of the circulating pipe to form a water flow passage;
the inner side wall of the box cover is respectively and oppositely provided with a bottom plate and a top plate, a certain gap is formed between the side wall of the top plate and the surface of the box cover, two side ends between the bottom plate and the top plate are respectively and fixedly provided with a first connecting pipe, the upper end openings of a pair of first connecting pipes are fixedly provided with a tee joint, and a second connecting pipe is fixedly arranged between the upper end of the tee joint and the air injection hole;
the top end of the box cover penetrates into the test chamber, and is provided with an air injection hole for discharging steam, and a second connecting pipe is fixedly arranged between the upper end of the tee joint head and the air injection hole;
a lifting plate capable of lifting and moving is arranged between the bottom plate and the top plate, the inner cavity of the lifting plate is arranged in a hollow structure, positioning holes are respectively formed in two sides of the upper end of the lifting plate in a penetrating mode, and wiping strips are arranged on the inner side wall of the lifting plate;
the inner chamber of roof runs through and has seted up first air flue to first connecting pipe inner chamber to the rotatory hole has been seted up to the roof bottom surface, the upper end of lifter plate runs through and is provided with the threaded rod, and the bottom surface of threaded rod runs through and has seted up the second air flue to the top, second air flue bottom opening part is provided with the blade, the third air flue has been seted up to the upper end of lifter plate, and the third air flue is the U-shaped structure and sets up, the one end opening part and the second air flue inner chamber of third air flue communicate with each other simultaneously, the lifter plate inner chamber is provided with mobilizable screw thread snap ring, its screw thread snap ring medial surface and threaded rod threaded connection.
Furthermore, a heating assembly capable of heating the aqueous solution is arranged in the test chamber close to the bottom surface, and a filter plate is arranged above the heating assembly.
The beneficial effect of this application is: when the section steel reinforced concrete test piece needs to carry out a high-temperature water corrosion test, the section steel reinforced concrete test piece can be placed at the upper end of a filter plate, then a heating component is heated, and further water solution in a test chamber can carry out high-temperature corrosion on the section steel reinforced concrete test piece, meanwhile, a suction pump in the test chamber can operate, then the water solution can sequentially pass through a circulating pipe and a butt pipe, the water solution flows to the inner side wall of a box cover through a water spray port, the flowing water solution is processed, and then water vapor can be prevented from adhering to the inner side wall of the box cover, the internal test process of the test chamber is observed by the test chamber, after the pressure in the test chamber is continuously raised, the pressure can continuously push a sealing plate through an air inlet, the sealing plate can move to one side of an air outlet, an air flow passage can be formed between a third air passage and the air outlet, then under the flowing of air flow, a threaded rod can rotate, then the threaded ring is in threaded connection with the threaded rod, so that the lifting plate can move upwards when the lifting plate is continuously raised, after the lifting plate is continuously raised, one end of a push rod can be inserted into the limiting hole, after the clamping column is pushed, then, the clamping plate is separated from the limiting hole, and then the sealing plate is reversely pushed by a first spring, so that the inner side wall of the lifting plate can move along the lifting plate can be cleaned by the lifting plate, and the lifting plate, the lifting plate can be cleaned by the lifting strip, and the lifting strip can be cleaned by the water spray rod, and can be cleaned by the lifting strip, and the water spray rod can be cleaned together with the cleaning strip, and the cleaning strip can be cleaned by the cleaning strip.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic overall perspective view of a corrosion test device for a steel reinforced concrete test piece in a high-temperature water corrosion environment according to an embodiment of the present application;
FIG. 2 is a schematic top plan view of an embodiment according to the present application;
FIG. 3 isbase:Sub>A schematic view ofbase:Sub>A cross-sectional structure along line A-A according to an embodiment of the present application;
FIG. 4 is a schematic bottom view of a cover according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a cover according to an embodiment of the present application;
FIG. 6 is a schematic view of a case cover split structure according to an embodiment of the present application;
FIG. 7 is an overall top plan structural schematic view according to an embodiment of the present application;
FIG. 8 is a schematic view of a cross-sectional structure along line B-B according to an embodiment of the present application;
FIG. 9 is an enlarged schematic view at A in FIG. 8 according to an embodiment of the application;
FIG. 10 is a schematic top plan view of a case lid according to an embodiment of the present application;
FIG. 11 is a schematic view of a cross-sectional structure along line C-C according to an embodiment of the present application;
FIG. 12 is an enlarged schematic view at B in FIG. 11 according to an embodiment of the present application;
FIG. 13 is an enlarged schematic view at C of FIG. 11 according to an embodiment of the present application;
FIG. 14 is a schematic cross-sectional view of a lifter plate according to an embodiment of the present application;
FIG. 15 is an enlarged schematic view of FIG. 14 at D according to an embodiment of the application;
FIG. 16 is a cross-sectional structural schematic view of a lifter plate according to an embodiment of the present application;
fig. 17 is an enlarged schematic diagram of a structure at E in fig. 16 according to an embodiment of the application.
Icon: 1-corrosion test equipment; 11-a test chamber; 12-a filter plate; 13-a circulation pipe; 14-a water pump; 15-a heating assembly; 2-box cover; 21-gas injection holes; 22-a base plate; 221-an exhaust pipe; 222-a third airway; 23-a first connection pipe; 24-a top plate; 241-a first air passage; 242-rotating holes; 243-mandril; 25-three-way head; 26-a second connecting tube; 3-butt joint pipe; 31-a water spray pipe; 32-water spray; 4-lifting plate; 41-positioning holes; 42-an exhaust port; 43-air inlet; 44-a limiting hole; 45-an elastic film; 5-wiping strip; 51-a first link; 52-push plate; 53-threaded snap ring; 54-a sealing plate; 541-a telescopic slot; 542-clamp column; 543-a second spring; 55-a first spring; 56-a telescopic sleeve; 57-a second link; 6-a threaded rod; 61-a second airway; 62-blade.
Detailed description of the preferred embodiments
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The corrosion test device for the steel reinforced concrete test piece in the high-temperature water corrosion environment according to the embodiment of the application is described below with reference to the attached drawings.
As shown in fig. 1 to 3 and 5, the corrosion test device for the steel reinforced concrete test piece in the high-temperature water corrosion environment according to the embodiment of the present application includes: corrosion test equipment 1 and test chamber 11 that can carry out high temperature water corrosion test to shaped steel concrete, be provided with the heating element 15 that can heat aqueous solution near bottom surface department in test chamber 11 inside simultaneously, and the top of heating element 15 is provided with filter 12, its shaped steel concrete material can be placed in the upper end surface of filter 12, and then carry out corrosion test to shaped steel concrete, and the articulated case lid 2 that is provided with the sealed lid that can overturn and closes of upper end opening part in test chamber 11, and 2 upper end both sides of case lid are transparent structure, and then conveniently observe the inside high temperature water corrosion test of its test chamber 11. Meanwhile, the top end of the box cover 2 penetrates into the test chamber 11 and is provided with a gas orifice 21 for discharging steam, so as to prevent the internal pressure from being too high.
As shown in fig. 1, 3-4, a circulating tube 13 is fixedly disposed on the sidewall of the inner cavity of the test chamber 11, an opening at the end of the circulating tube 13 is inserted into the test chamber 11, so that the water solution can pass through the circulating tube 13, a water pump 14 capable of pumping the water solution in the test chamber 11 is fixedly disposed at the opening at the end of the circulating tube 13, and when the cover 2 is rotatably hinged to the opening at the upper end of the test chamber 11, the opening at the lower end of the butt-joint tube 3 on the sidewall of the cover 2 can be sleeved on the upper end of the circulating tube 13, so that the water solution in the circulating tube 13 can flow through the butt-joint tube 3. The top end of the butt joint pipe 3 extends to the top end of the inner cavity of the box cover 2, a spray pipe 31 is arranged at the opening of the upper end of the butt joint pipe 3, and a water spray opening 32 for spraying water solution is arranged on the outer peripheral surface of the spray pipe 31 facing the inner side wall of the box cover 2. When the shaped steel concrete test piece need carry out high temperature water corrosion test, its shaped steel concrete test piece can be placed in the upper end of filter 12, heating element 15 heats afterwards, and then make the inside aqueous solution of experimental storehouse 11 can carry out high temperature corrosion to the shaped steel concrete test piece, the inside suction pump 14 of experimental storehouse 11 simultaneously can operate, aqueous solution can loop through circulating pipe 13 and butt joint pipe 3 afterwards, make aqueous solution pass through the inside wall of water jet 32 flow direction case lid 2, under the aqueous solution processing of flow, and then can prevent its vapor adhesion in the inside wall of case lid 2, influence its inside test process of surveing.
As shown in fig. 6 to 13, the inner side wall of the box cover 2 has a bottom plate 22 and a top plate 24 at lower and upper edges thereof, respectively, and a gap is formed between the side wall of the top plate 24 and the surface of the box cover 2. First connecting pipes 23 are fixedly arranged at two side ends between the bottom plate 22 and the top plate 24 respectively, a tee joint 25 is fixedly arranged at an opening at the upper end of the first connecting pipes 23, and a second connecting pipe 26 is fixedly arranged between the upper end of the tee joint 25 and the air injection hole 21.
A lifting plate 4 capable of lifting and moving is arranged between the bottom plate 22 and the top plate 24, the inner cavity of the lifting plate 4 is arranged in a hollow structure, positioning holes 41 for the first connecting pipes 23 to pass through are respectively arranged on two sides of the upper end of the lifting plate 4 in a penetrating manner, and the movement of the lifting plate 4 can be positioned by the positioning holes 41. Meanwhile, the surface of the lifting plate 4 parallel to the inner side wall of the box cover 2 is provided with a wiping strip 5 which can descend to wipe off impurities. When the lifting plate 4 is lifted and moved, the wiping strip 5 can wipe off and clean the inner side wall of the box cover 2 through the wiping strip 5.
The upper end of the lifting plate 4 is provided with a threaded rod 6 in a penetrating manner, the bottom surface of the threaded rod 6 penetrates through the top to be provided with a second air passage 61, the upper end of the lifting plate 4 is provided with a third air passage 222, the third air passage 222 is provided with a U-shaped structure, meanwhile, the opening of one end of the third air passage 222 is communicated with the inner cavity of the second air passage 61, the inner cavity of the top plate 24 penetrates through the inner cavity of the first connecting pipe 23 to be provided with a first air passage 241, the bottom surface of the top plate 24 is provided with a rotating hole 242 through which the top end of the threaded rod 6 can rotate along the inner cavity of the top plate, the opening of the second air passage 61 positioned in the inner cavity of the third air passage 222 is provided with a blade 62, the inner cavity of the hollow lifting plate 4 is provided with a thread clamping ring 53 in a semi-arc structure, and the internal thread groove of the thread clamping ring 53 is in threaded connection with the threaded rod 6. When carrying out high temperature water corrosion test in test chamber 11 inside, its test chamber 11 inside aqueous solution carries out heat treatment through heating element 15, after constantly rising along with the inside temperature of test chamber 11, its aqueous solution can constantly produce vapor, after rising along with the inside pressure of test chamber 11, rising vapor constantly gets into from third air flue 222, the inside of first air flue 241 is discharged into through blade 62 afterwards, because the flow of air current makes blade 62 can rotate, and then make threaded rod 6 can rotate, after rotating along with threaded rod 6, screw snap ring 53 through threaded rod 6 surface threaded connection afterwards, and then make and wipe strip 5 and laminate in the inside wall scraping clean processing of case lid 2.
As shown in fig. 12 and 14-17, when the box cover 2 is covered on the upper opening of the test chamber 11, some impurities may adhere to the inner side wall of the box cover 2, and the accumulation of impurities may further affect the observation of the test. The wiping strip 5 and the lifting plate 4 can move telescopically, a first connecting rod 51 is fixedly arranged on the bottom surface of the wiping strip 5, the tail end of the first connecting rod 51 penetrates through the inner cavity of the lifting plate 4 and is inserted into the inner cavity of the lifting plate 4, a push plate 52 is fixedly arranged at the tail end of the first connecting rod 51, the outer surface of the threaded clamping ring 53 is fixedly connected with the bottom surface of the push plate 52, and therefore the movement of the threaded clamping ring 53 is synchronous with the movement of the wiping strip 5. A telescopic sleeve 56 which can be sealed and stretched is arranged between the upper end surface of the push plate 52 and the penetrating position of the lifting plate 4, and the telescopic sleeve 56 is a member made of an elastic material, so that the telescopic sleeve can be stretched and sealed.
A pair of second connecting rods 57 are respectively arranged on the horizontal end faces of the threaded snap rings 53, sealing plates 54 are fixedly arranged at the tail ends of the second connecting rods 57, the threaded rod 6 is located between the threaded snap rings 53 and the sealing plates 54, meanwhile, the upper end of the lifting plate 4 penetrates through the bottom to form the air inlet 43, one end of the threaded rod 6 penetrates through the air inlet 43, the diameter of the air inlet 43 is larger than that of the threaded rod 6, and then air pressure can push the sealing plates 54 to move. And a first spring 55 is provided between the back surface of the sealing plate 54 and the inner wall of the elevating plate 4 to provide a certain reverse thrust to the sealing plate 54. An air outlet 42 coaxial with an opening at one end of the third air passage 222 is formed at the bottom of the lifting plate 4 in a penetrating manner, and an air outlet pipe 221 is inserted into the air outlet 42 and extends from the opening at one end of the third air passage 222. Therefore, when a high-temperature water corrosion test is performed in the test chamber 11, after the internal pressure rises, the pressure continuously pushes the sealing plate 54 backwards, the movement of the sealing plate 54 further enables the threaded snap ring 53 to be in threaded connection with the threaded rod 6, and the sealing plate 54 moves to one side of the exhaust port 42, so that an airflow passage is formed between the air inlet 43 and the exhaust port 42, the internal air pressure is conveniently exhausted, and the lifting plate 4 can rise together.
The upper end of the sealing plate 54 is provided with a downward telescopic groove 541, the inside of the telescopic groove 541 is provided with a clamping column 542 which can move in a telescopic manner, a second spring 543 is arranged between the bottom of the clamping column 542 and the bottom surface of the telescopic groove 541, the top of the inner cavity of the lifting plate 4 is provided with a limiting hole 44, the limiting hole 44 is located on one side of the exhaust port 42, the sealing plate 54 is further moved to one side of the exhaust port 42, then the second spring 543 on the bottom surface of the clamping column 542 pushes the clamping column 542, the top of the clamping column 542 is inserted into the limiting hole 44, and the threaded snap ring 53 can be limited and fixed, so that the threaded snap ring 53 can be in threaded connection with the threaded rod 6 after the threaded rod 6 rotates. And the top opening of the spacing hole 44 is provided with an elastic membrane 45 which can elastically stretch out and draw back, and the bottom surface of the top plate 24 is provided with an ejector rod 243 which is coaxial with the spacing hole 44, after the lifting plate 4 ascends through the threaded rod 6, the tail end of the ejector rod 243 can be inserted into the inner cavity of the spacing hole 44, and the clamping column 542 can be pushed reversely, so that one end of the clamping column 542 can be separated from the inside of the spacing hole 44. After the pressure in the test chamber 11 is continuously increased, the sealing plate 54 is continuously pushed by the pressure through the air inlet 43, the sealing plate 54 can move to one side of the air outlet 42, an air flow passage can be formed between the third air passage 222 and the air outlet 42, then the threaded rod 6 can rotate under the flowing of air flow, then the threaded snap ring 53 is in threaded connection with the threaded rod 6, and further when the threaded rod 6 rotates, the lifting plate 4 can move upwards and rise, and then after the lifting plate 4 rises continuously, one end of the ejector rod 243 can be inserted into the limiting hole 44, after the ejector rod 243 pushes the snap column 542 to be separated from the limiting hole 44, then the sealing plate 54 is reversely pushed by the first spring 55, so that the threaded snap ring 53 can be far away from the threaded rod 6, while the threaded snap ring 53 moves, the wiping strip 5 can be attached to the inner side wall of the box cover 2, and then under the gravity action of the lifting plate 4, the wiping strip 5 can be wiped downwards along with the flowing direction of water sprayed from the water spray opening 32, and further wiping can be performed along with water flow.
Specifically, this corrosion test device of shaped steel concrete test piece under high temperature water corrosive environment's theory of operation: when the shaped steel concrete test piece need carry out high temperature water corrosion test, its shaped steel concrete test piece can be placed in the upper end of filter 12, heating element 15 heats afterwards, and then make the inside aqueous solution of experimental storehouse 11 can carry out high temperature corrosion to the shaped steel concrete test piece, the inside suction pump 14 of experimental storehouse 11 simultaneously can operate, aqueous solution can loop through circulating pipe 13 and butt joint pipe 3 afterwards, make aqueous solution pass through the inside wall of water jet 32 flow direction case lid 2, under the aqueous solution processing of flow, and then can prevent its vapor adhesion in the inside wall of case lid 2, influence its inside test process of surveing.
When carrying out high temperature water corrosion test inside experimental storehouse 11, its experimental storehouse 11 inside aqueous solution carries out heat treatment through heating element 15, after the inside temperature of experimental storehouse 11 constantly risees, its aqueous solution can constantly produce vapor, after the inside pressure of experimental storehouse 11 risees, rising vapor constantly gets into from third air flue 222, the inside of first air flue 241 is discharged into through blade 62 afterwards, because the flow of air current makes blade 62 can rotate, and then make threaded rod 6 can rotate, after threaded rod 6 rotates, the screw thread snap ring 53 through threaded rod 6 surface threaded connection afterwards, and then make the inside wall of wiping strip 5 laminating in case lid 2 strike off the cleaning process.
After the pressure in the test chamber 11 is continuously increased, the sealing plate 54 is continuously pushed by the pressure through the air inlet 43, the sealing plate 54 can move to one side of the air outlet 42, an air flow passage can be formed between the third air passage 222 and the air outlet 42, then the threaded rod 6 can rotate under the flowing of air flow, then the threaded snap ring 53 is in threaded connection with the threaded rod 6, and further when the threaded rod 6 rotates, the lifting plate 4 can move upwards and rise, and then after the lifting plate 4 rises continuously, one end of the ejector rod 243 can be inserted into the limiting hole 44, after the ejector rod 243 pushes the snap column 542 to be separated from the limiting hole 44, then the sealing plate 54 is reversely pushed by the first spring 55, so that the threaded snap ring 53 can be far away from the threaded rod 6, while the threaded snap ring 53 moves, the wiping strip 5 can be attached to the inner side wall of the box cover 2, and then under the gravity action of the lifting plate 4, the wiping strip 5 can be wiped downwards along with the flowing direction of water sprayed from the water spray opening 32, and further wiping can be performed along with water flow.
The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (2)
1. The corrosion test device for the steel reinforced concrete test piece in the high-temperature water corrosion environment comprises a corrosion test device (1) and a test bin (11) arranged on one side of the corrosion test device (1), wherein an opening above the test bin (11) is hinged with a turnover box cover (2), a water spray pipe (31) is arranged on the top wall of an inner cavity of the box cover (2), water spray nozzles (32) are formed in two sides of the outer surface of the water spray pipe (31), and the water spray nozzles (32) face towards the inner side wall of the box cover (2);
meanwhile, one side of the spray pipe (31) is provided with a butt joint pipe (3) which can supply water to the spray pipe (31), and the device is characterized by comprising
A circulating pipe (13) is fixedly arranged on the side wall of the inner cavity of the test chamber (11), a water pump (14) capable of pumping the aqueous solution in the test chamber (11) is fixedly arranged at the tail end opening of the circulating pipe (13), and the tail end opening of the butt joint pipe (3) can be sleeved at the upper end of the circulating pipe (13) to form a water flow passage;
a bottom plate (22) and a top plate (24) are respectively and oppositely arranged on the inner side wall of the box cover (2), a certain gap is formed between the side wall of the top plate (24) and the surface of the box cover (2), first connecting pipes (23) are respectively and fixedly arranged at two side ends between the bottom plate (22) and the top plate (24), a three-way head (25) is fixedly arranged at an opening at the upper end of each pair of the first connecting pipes (23), and a second connecting pipe (26) is fixedly arranged between the upper end of the three-way head (25) and the air injection hole (21);
the top end of the box cover (2) penetrates into the test chamber (11) and is provided with an air injection hole (21) for discharging steam, and a second connecting pipe (26) is fixedly arranged between the upper end of the tee joint head (25) and the air injection hole (21);
a lifting plate (4) capable of lifting and moving is arranged between the bottom plate (22) and the top plate (24), the inner cavity of the lifting plate (4) is arranged in a hollow structure, positioning holes (41) are respectively formed in two sides of the upper end of the lifting plate (4) in a penetrating mode, and a wiping strip (5) is arranged on the inner side wall of the lifting plate (4);
the inner cavity of the top plate (24) penetrates through the inner cavity of the first connecting pipe (23) to form a first air passage (241), the bottom surface of the top plate (24) is provided with a rotating hole (242), the upper end of the lifting plate (4) penetrates through the threaded rod (6), the bottom surface of the threaded rod (6) penetrates through the top to form a second air passage (61), the bottom opening of the second air passage (61) is provided with a blade (62), the upper end of the lifting plate (4) is provided with a third air passage (222), the third air passage (222) is in a U-shaped structure, meanwhile, the opening of one end of the third air passage (222) is communicated with the inner cavity of the second air passage (61), the inner cavity of the lifting plate (4) is provided with a movable threaded snap ring (53), and the inner side face of the threaded snap ring (53) is in threaded connection with the threaded rod (6).
2. The apparatus for testing the corrosion of the steel reinforced concrete test piece in the high-temperature water corrosion environment according to claim 1, wherein a heating assembly (15) capable of heating the aqueous solution is arranged in the test chamber (11) near the bottom surface, and a filter plate (12) is arranged above the heating assembly (15).
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| CN202211514716.4A CN115541488B (en) | 2022-11-30 | 2022-11-30 | Corrosion test device of section steel concrete test piece under high-temperature water corrosion environment |
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| CN202211514716.4A CN115541488B (en) | 2022-11-30 | 2022-11-30 | Corrosion test device of section steel concrete test piece under high-temperature water corrosion environment |
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| CN115541488A (en) | 2022-12-30 |
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